Purpose and classification of rollers. Road roller - how to choose a machine with the necessary parameters Types of compaction rollers

22.06.2019

Miscellaneous

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Asphalt paving machines

Purpose and classification of rollers

The rollers are designed for compacting bases and coatings made from asphalt concrete mixtures, as well as for layer-by-layer compaction of soils, gravel-crushed stone and stabilized materials during the construction of dams, dikes, airfields and roads.

The working parts of these machines are metal rollers or pneumatic wheels.

The working bodies of the rollers are divided into driving and driven. Torque from the engine is transmitted to the leading working bodies internal combustion. The driven working parts of self-propelled rollers are guides and serve to rotate the machine.

Rollers are classified according to the principle of operation, the type of working body, the method of movement, the number of axles and the number of rollers (GOST 21994-76).
According to the principle of operation, rollers are divided into static and vibrating.

On static rollers, the coating is compacted due to the force of gravity as the working element rolls over the material. On vibrating rollers, in addition to static loading, a dynamic load is transferred to the compacted material due to the oscillatory movements of one roller. To create vibration, an unbalanced vibration exciter is built into one of the rollers, driven by the roller transmission.

Based on the type of working body, a distinction is made between rollers with smooth rollers and pneumatic wheels.

According to the method of movement, rollers are divided into semi-trailer and self-propelled. In a semi-trailer roller, part of its mass is transferred to the tractor through hitch. Pneumatic wheeled tractors or tractors are used with semi-trailer rollers.

According to the number of axles, rollers are divided into single-axle, two-axle and three-axle.

Based on the number of rollers, single-roller, double-roller and three-roller rollers are distinguished.

The main parameter of rollers is weight. Based on weight and design, self-propelled road rollers with smooth rollers are manufactured in the following types and designs:
type 1 - light vibration weighing 0.6; 1.5 and 4 t single-axle single-roll (1/1) and biaxial double-roll (2/2);
type 2 - medium vibration and static weighing 6 tons, biaxial two-roll (2/2) and biaxial three-roll (2/3);
type 3 - heavy static weighing 10 and 15 tons, biaxial two-roll (2/2); biaxial three-roller (2/3) and three-axle three-roller (3/3).
Pneumatic semi-trailer rollers are divided into the following types (GOST 16481-70): light (15 tons), medium (30 tons) and heavy (45 tons).
Pneumatic self-propelled rollers are divided into medium (16 tons) and heavy (30 tons).

Many construction and road views work required special training soil or fill foundation. When covering roads and various areas with asphalt, compaction of the underlying and top layers is also required. To perform compaction and rolling operations of large areas, special construction machines– self-propelled road rollers.

Judging by the name, these machines should be used exclusively for road works. But the scope of their use is much wider - they work in quarries, arrangement of forested areas, equipment of sports facilities, construction railways and dams. Their operating conditions are very diverse, so various types of soil compaction rollers have been created. According to the design of the working and chassis they are divided into:

single-roller
twin-roller
three-roller
self-propelled
manual
trailed (towed)

Their weight ranges from 150 kg (manual single-roller) to 30 -35 tons (two-roller self-propelled). This dispersion of masses is determined by the tasks assigned to the machines - some compact pedestrian paths or sports courtyards, others multi-lane highways or dams of hydraulic structures.

Single drum road rollers

Among manual and self-propelled rollers of small and medium weight greatest distribution received single-drum vibrating rollers. They are maneuverable, energy-rich and very effective when working on small areas. Their productivity is quite high due to the use of removable drums with smooth or textured working surfaces and vibration compaction systems with the ability to adjust operating modes.

Most single-drum machines are built according to the classical design scheme - motor part pneumatically located at the rear of the machine in conjunction with the control cabin and hydraulic pumps. The front part, which is a frame with a massive cylindrical drum - a roller, is hingedly connected to the motor part.

The drive is carried out both on the wheels and on the drum of the working body, so self-propelled road rollers do not slip even on wet surfaces and their working drums do not slip. The control system turns the rear and front parts using hydraulic cylinders, which allows you to effectively maneuver and process road sections with a large number of turns of the permissible radius of curvature.

An 8t road roller is used to compact the road surface and prepare it before the passage of heavy two- or three-drum rollers that finalize the surface. These are one of the lightest self-propelled rollers, which nevertheless have a fairly powerful compaction load. They are much more maneuverable and economical than twin-drum vibratory rollers and do not require preliminary preparation before the passage.

They work immediately after the paver and prepare the surface for subsequent compaction. When operating on soils in vibration compaction mode, self-propelled vibrating rollers with smooth rollers weighing 6-8 tons can independently compact a layer of soil or bulk coating up to 40 cm thick.

Cam rollers for soil compaction are used in cases of heterogeneity of the underlying layer, the presence of inclusions of stones, large fractions of crushed stone, limestone, sandstone and other materials that are crushed by spikes on the surface of the roller and compacted into the base.
After processing the base with cam drums, smooth rollers are certainly used to level the surface and achieve uniform density throughout the entire volume.

The drive of single-drum road rollers is carried out using mechanical or hydraulic transmission, designed for a travel speed of no more than 13-15 km/h per transport mode and up to 8 km/h in working hours. For these machines, operating efficiency is determined not by speed, but by the ability to impact the ground with maximum force. The transmission allows you to change the direction of movement very quickly and ensures a smooth ride. Jerks and accelerations are unacceptable here in order to avoid shifts of the upper layers of soil relative to the lower ones, which leads to heterogeneity in the structure of the compacted zone.

Double drum road rollers

Self-propelled road rollers with two working rollers are machines with a tandem arrangement of drums that also serve as propulsors. As a rule, the drive is carried out on both rollers using mechanical transmission or hydrostatic drive. Some models operate according to the scheme of static impact on the ground due to their large own mass. But self-propelled smooth road rollers of 13 tons are, as a rule, vibrating type machines.

When not so big total mass they very intensively compact soil layers and asphalt of the road surface through the use of vibration systems that can be adjusted both in amplitude and frequency of vibrations. Vibration is carried out by rotating an internal eccentric shaft with a mechanical or hydraulic drive.

A self-propelled road roller is a fairly comfortable machine for the operator. The cabins of modern rollers are equipped with air conditioning, have excellent sound insulation and a special suspension that protects the operator from vibration. Panoramic view, powerful lighting allow you to work at any time of the day, and driver safety is guaranteed special systems rollover protection.

The soil self-propelled road roller is equipped diesel engine average power. Despite the large mass of the car, 100 hp. quite enough for efficient work. A special transmission device converts all the power into confident movement of the machine. low speed and vibration of the rollers. Coefficient useful action these machines are extremely high.

General information:

Brand (type): RV-1.5DD
Length, mm: 2 200
Width, mm: 1 100
Height, mm: 2 550
Weight, kg: 1,500
Manufacturers: JSC "Raskat"
OKP code: 482412

Characteristics

Technical characteristics: Performance. Asphalt up to 400 sq.m/hour. Number of vibrating rollers - 2. Static linear load 8800 (8.8) N/m (kgf/cm). Frequency - 60/0.3 Hz/Amplitude, mm. Centrifugal force(driving force) - 12 kN. Speed, 0 … 10.0 km/h reversing. Drive both rollers Water tank - 100 l. Hydraulic oil MGE-46V (analogues of Tellus 46, HyspinAWS 46). The minimum turning radius along the outer contour of the trail is 3.0 m. The surmountable slope is 20°. Compaction depth 3 - 5 cm. Number of passes 2 - 8. Compaction coefficient 0.9 - 1.0. Dimensions Roller width - 850 mm. The width of the compacted strip is 850 mm. Roller diameter - 580 mm. Height in transport position- 1650 mm. Engine KUBOTA D 722-E/14 kW. Engine cooling - water
Application: The RV-1.5 DD vibratory sidewalk roller is designed for compacting the bases of asphalt concrete pavements in places where high maneuverability and mobility are required: the construction of city avenues, platforms, sidewalks, as well as for the repair of sidewalk roads.
Description: The skating rink is equipped with a modern diesel engine "KUBOTA" (Japan) with low noise, vibration and emissions harmful substances, pumping station"BONDIOLI&PAVESY" (Italy), hydraulic system filters "SOFIMA", planetary gearboxes"POCLAIN HYDRAULICS" (Italy). The machine is easy to maintain, adapted for diagnostics, which in combination with high quality components minimizes the likelihood unscheduled repairs

General information:

Brand (type): DU-82
Length, mm: 2 950
Width, mm: 1 400
Height, mm: 2 900
Weight, kg: 3,500
Manufacturers: JSC "Raskat"
OKP code: 482412

Characteristics

Technical characteristics: Engine KUBOTA D 1703-E/25.7 kW/2800 rpm Engine cooling is water. Fuel consumption - 7.28 liters/hour. Accumulator battery 6ST-90 EM. Voltage - 12 V. Performance. Asphalt up to 500 sq.m/hour. Soil up to 150 cubic meters/hour. Number of vibrating rollers - 2. Front module weight - 1.75 tons. Rear module weight - 1.75 tons. Transmission - hydraulic. Parking brake- hydraulic. Static linear load, front roller - 13,500 (13.5) N/m (kgf/cm). Static linear load, rear drum - 13,500 (13.5) N/m (kgf/cm). Frequency - 64/0.48 Hz/Amplitude, mm. Centrifugal force (driving force) - 32 kN. Speed up to 8.4 km/h. Drive both rollers. Water tank - 200 l. Hydraulic tank - 85 l. Hydraulic oil MGE-46V (analogues of Tellus 46, HyspinAWS 46). Roll angle 15° (27%). The minimum turning radius along the outer contour of the trail is 4.5 m. The surmountable slope is 22° (40%). Compaction depth 3-6 cm. Number of passes 4 - 10. Compaction coefficient 0.94 - 1.0
Description: This model has a travel drive on both rollers, which reduces the shear of the compacted material and provides better ability to overcome climbs; good maneuverability; comfortable workplace operator with full visibility of the compaction area; low level noise; hydrostatic drive on both rollers; ease of maintenance, easy access to components and assemblies; Articulated frame design provides high maneuverability with track-to-track roller passage and the ability to work in close proximity to buildings and curbs

General information:

Brand (type): DU-98
GOST, TU: TU 4824-060-00239959-99
Length, mm: 3 920
Width, mm: 2 200
Height, mm: 3,500
Weight, kg: 11,500
Manufacturers: JSC "Raskat"
OKP code: 482412

Characteristics

Technical characteristics: Engine MMZ D-243-91/57.4 kW/2200 rpm MMZ D-245-92/72.0 kW/2200 rpm. Engine cooling is water. Fuel consumption - 15.0 liters/hour. Rechargeable battery 6ST-182 EM. Voltage - 12 V. Performance. Asphalt up to 2500 sq.m/hour. Soil up to 700 cubic meters/hour. Structural weight - 10.00 tons. Number of vibrating rollers - 2. Front module weight - 5.75 tons. Rear module weight - 5.75 tons. Transmission - hydraulic. The parking brake is hydraulic. Static linear load, front roller - 34,000 (34) N/m (kgf/cm). Static linear load, rear drum - 34,000 (34) N/m (kgf/cm). Frequency - 40/0.6/ Hz/Amplitude, mm. Centrifugal force (driving force) high/low - 75/65 kN. Operating speed up to 7 km/h. Transport speed up to 10 km/h. Drive both rollers Water tank - 1100 l. Hydraulic tank - 180 l. Hydraulic oil MGE-46V (analogues of Tellus 46, HyspinAWS 46). Roll angle 15° (27%). Minimum turning radius along the outer contour of the track - 6 m. Overcome slope 19° (34%) Compaction depth (asphalt concrete) 4 - 10 cm. Number of passes 4 - 10. Compaction coefficient 0.96 - 1.01
Application: Designed for compaction of road bases and coatings made of various road building materials
Description: This model has a travel drive on both rollers, which reduces the shear of the compacted material and provides better ability to overcome climbs; working in the roller displacement mode (the so-called “dog stroke”) allows you to increase the width of the compacted strip and makes it easier to work near walls and curbs; increased maneuverability; comfortable workplace with panoramic view; cabin heater; asphalt concrete edge cutting mechanism; ease of maintenance, easy access to components and assemblies; two rotary rollers provide high maneuverability with the passage of the rollers “track to track”; the use of highly effective noise-vibration-insulating materials ensures low noise levels

General information:

Brand (type): DU-96
GOST, TU: TU 4824-058-00239959-2000
Length, mm: 4,050
Width, mm: 1 850
Height, mm: 3,050
Weight, kg: 7,800
Manufacturers: JSC "Raskat"
OKP code: 482412

Characteristics

Technical characteristics: The width of the compacted strip is 1500 mm. The diameter of the vibrating drum is 1050 mm. Disturbing force - 44 kN. Vibration frequency - 50 Hz. The transmission is hydrostatic. Engine power - 48/46 kW Travel speed, working 0-8 km/h, transport 0-12 km/h

General information:

Brand (type): DU-84
Length, mm: 6,000
Width, mm: 2 400
Height, mm: 3,200
Weight, kg: 14,000
Manufacturers: JSC "Raskat"
OKP code: 482412

Characteristics

Technical characteristics: Performance. Asphalt up to 3000 sq.m/hour. Soil up to 1000 cubic meters/hour. Number of vibrating rollers - 1. Front module weight - 7 tons. Rear module weight - 7 tons. Transmission - hydraulic. The parking brake is hydraulic. Static linear load, front drum - 3200 N/m. Frequency - 40/0.8 Hz/Amplitude, mm (high). Frequency - 24/1.8 Hz/Amplitude, mm (low). Centrifugal force (driving force) high/low - 150/100 kN 150/100. Operating speed up to 5.4 km/h. Transport speed is up to 8 km/h. Drive both rollers. Water tank - 400 l. Hydraulic tank - 162 l. Hydraulic oil MGE-46V (analogues of Tellus 46, Hyspin AWS 46). Roll angle 15° (27%) Minimum turning radius along the outer contour of the trail - 7 m. Gradeability 20° (36%). Compaction depth (asphalt/soil) 4 - 10 / 15 - 70 cm. Number of passes (asphalt/soil) 4 - 10 / 3 -12. Compaction coefficient (asphalt/soil) 0.96 - 1.0 / 0.95 - 0.98. Dimensions Roller width - 2000 mm. The width of the compacted strip is 2000 mm. Roller diameter - 1600 mm. Tire size 11.00-20. The diameter of the pneumatic wheel is 1070 mm. Number of pneumatic wheels - 4. Height without cabin - 2300 mm. Roller base (distance between roller axes) - 3250 mm. Ground clearance - 350 mm. YaMZ engine 236-G1/110 kW/1700 rpm. Engine cooling is water. Fuel consumption - 27.83 liters/hour. Rechargeable battery 6ST-182 EM Voltage - 12 V
Application: The DU-84 vibratory combined roller is designed for compacting bases made of various road-building materials and road surfaces from bitumen-mineral mixtures
Description: Design features of DU-84: - drive on both rollers reduces the shear of the compacted material and provides better ability to overcome inclines; - two vibration modes expand the list of effectively compacted materials; - comfortable workplace; - cabin heater; - the design with an articulated frame provides high maneuverability with the passage of the rollers “track to track” and the ability to work in close proximity to buildings and curb stones. Additional equipment: - device for monitoring the degree of compaction; - forced irrigation of rollers; - clutch; - diesel heater; - installation of tires with tread to improve cross-country ability

General information:

Brand (type): DU-85
Length, mm: 6,000
Width, mm: 2 400
Height, mm: 3,200
Weight, kg: 13,000
Manufacturers: JSC "Raskat"
OKP code: 482412

Characteristics

Technical characteristics: Performance. Soil up to 1200 cubic meters/hour. Number of vibrating rollers - 1. Front module weight - 7.0 tons. Rear module weight - 6.0 tons. Transmission - hydraulic. The parking brake is hydraulic. Static linear load, front drum - 32000 N/m. Frequency - 24/18 Hz/Amplitude, mm. Centrifugal force (driving force) - 150 kN. Operating speed up to 6.0 km/h. Transport speed is up to 8 km/h. Drive both rollers. Hydraulic tank -162 l. Hydraulic oil MGE-46V (analogues of Tellus 46, Hyspin AWS 46). Roll angle 15° (27%). The minimum turning radius along the outer contour of the trail is 7 m. The surmountable slope is 20° (36%). Compaction depth 15 - 70 cm. Number of passes (asphalt/soil) 3 - 12. Compaction coefficient (asphalt/soil) 0.95 - 0.98. Dimensions Roller width - 2000 mm. The width of the compacted strip is 2000 mm. Roller diameter - 1600 mm. Tire size 16.00-24. The diameter of the pneumatic wheel is 1480 mm. Number of pneumatic wheels - 2. Height without cabin - 2300 mm. Roller base (distance between roller axes) - 3250 mm. Ground clearance - 350 mm. Engine YaMZ 236-G1/110 kW/1700 rpm. Engine cooling is water. Fuel consumption - 27.83 liters/hour. Rechargeable battery 6ST-182 EM. Voltage - 12 V
Application: The DU-85 vibrating soil compactor is designed for compacting pre-planned bulk soils and top layers of foundations made of various building materials
Description: Design feature- travel drive on both rollers reduces the shear of the compacted material and provides better ability to overcome inclines; - pneumatic tire protector all-terrain; - high ground clearance; - comfortable cabin with improved ergonomics of the control panel; - cabin heater; - articulated frame design ensures high maneuverability; - the presence of a hydraulic booster makes it easier to turn the roller. The skating rink can be equipped additional equipment; - two-section cam bandage; - bulldozer blade; - diesel heater

General information:

Brand (type): DM-10V
Length, mm: 4 850
Width, mm: 2,000
Height, mm: 3,200
Weight, kg: 10,000
OKP code: 482400

Characteristics

Technical characteristics: Engine power - 57.4 kW. Engine type - diesel. Roller width - 1700 mm. Roller diameter - 1245 mm. Maximum speed(work/transport) - 6/10 km/h. The minimum turning radius is 4800 mm. The vibration frequency of the vibrator is 100/38 kN. Transmission type - hydrostatic. Fuel consumption - 14.1 l/h. Roller base - 3600 mm
Application: Designed for compacting bases made of various road building materials and coatings made of bitumen-mineral mixtures for large volumes of work.
Description: Asphalt vibrating rollers DM10V. The DM10V roller provides excellent visibility of the drum edges and the compacted surface, and also has one of the highest compacting effects among rollers in its class. The model is easy to operate, allows you to adjust vibration parameters on the go, is equipped with an ergonomic control console and reliable system irrigation

General information:

Brand (type): DM-47G
Length, mm: 4 800
Width, mm: 1 800
Height, mm: 3 250
Weight, kg: 7,500
Manufacturers: Road Machines Plant LLC
OKP code: 482400

Characteristics

Technical characteristics: The width of the compacted strip is 1400 mm. Working speed 0-5 km/h. The oscillation frequency of the vibration exciter is 50 Hz. Driving force - 85 kN. Transmission - hydrostatic. Engine - D-144-09. Rated power - 44(60) kW (hp). Specific consumption fuel - 11.1 l/h
Application: Designed for compacting bases made of various road building materials and coatings made of bitumen-mineral mixtures for large volumes of work.

General information:

Brand (type): DM-58
Length, mm: 5 997
Width, mm: 2 419
Height, mm: 3 170
Weight, kg: 14,000
Manufacturers: Road Machines Plant LLC
OKP code: 482400

Characteristics

Technical characteristics: Engine D-260.1. Rated power - 114(155) kW (hp). Shaft rotation speed - 2100 rpm. Load on the front axle - 8.2 tons. Load on rear axle- 5.3 t. Roller diameter - 1550 mm. The width of the compacted strip is 2130 mm. Static linear load (vibrating drum) - 328 N/cm. Working speed / transport speed 0..5.5 / 0..11 km/h. The minimum turning radius is no more than 6300 mm. The climbability on compacted surfaces is at least 25%. The rotation frequency of the vibration exciter shaft is 40/24 Hz. Oscillation amplitude - 2.7 / 0.82 mm. Driving force - 100 / 150 kN. Pneumatic tire size 11.00 - 20 mm. Transmission - hydrostatic. Specific fuel consumption - 24.2 l/hour
Application: Designed for compacting bases made of various road building materials and coatings made of bitumen-mineral mixtures for large volumes of work.

General information:

Brand (type): DM-62
Length, mm: 6 147
Width, mm: 2 419
Height, mm: 3 170
Weight, kg: 14,000
Manufacturers: Road Machines Plant LLC
OKP code: 482400

Characteristics

Technical characteristics: Engine - YaMZ-236. Rated power - 132 (180) kW (hp). Load on the front axle - 8.2 tons. Load on the rear axle - 5.3 tons. Drum diameter - 1550 mm. The width of the compacted strip is 2130 mm. Static linear load (vibrating drum) - 328 N/cm. Operating speed / transport speed 0..5.5 / 0..11 km/h. The minimum turning radius is no more than 6300 mm. The climbability on compacted surfaces is at least 25%. The rotation frequency of the vibration exciter shaft is 30 Hz. Driving force 279/135 kN. Transmission - hydrostatic. Shaft rotation speed - 2100 rpm. Specific fuel consumption - 24.2 l/hour
Application: Designed for compacting bases made of various road building materials and coatings made of bitumen-mineral mixtures for large volumes of work.

General information:

Brand (type): DM-63
Length, mm: 3 920
Width, mm: 2 200
Height, mm: 3,500
Weight, kg: 9,000
Manufacturers: Road Machines Plant LLC
OKP code: 482400

Characteristics

Technical characteristics: The width of the compacted strip is 1640 mm. Operating speed 0-5 km/h. The oscillation frequency of the vibration exciter is 40 Hz. Driving force - 75/42 kN. Transmission - hydrostatic. Engine - D-243. Rated power - k57.4 (78) W (hp) Specific fuel consumption - 13.4 l/h
Application: Designed for compacting bases made of various road building materials and coatings made of bitumen-mineral mixtures for large volumes of work.

General information:

Brand (type): DM-64
Length, mm: 3 920
Width, mm: 2 200
Height, mm: 3,500
Weight, kg: 8,000
Manufacturers: Road Machines Plant LLC
OKP code: 482400

Characteristics

Technical characteristics: The width of the compacted strip is 1640 mm. Operating speed 0-5 km/h. The oscillation frequency of the vibration exciter is 40 Hz. Driving force - 75/42 kN. Transmission - hydrostatic. Engine - D-243. Rated power - 57.4 (78) kW (hp). Specific fuel consumption - 13.4 l/h 13.4
Application: Designed for compacting bases made of various road building materials and coatings made of bitumen-mineral mixtures for large volumes of work.

General information:

Brand (type): DM-65
Length, mm: 4 800
Width, mm: 2 200
Height, mm: 3,500
Weight, kg: 9,000
Manufacturers: Road Machines Plant LLC
OKP code: 482400

Characteristics

Technical characteristics: The width of the compacted strip is 2000 mm. Operating speed 0-5 km/h. Transmission - hydrostatic Engine D-243. Rated power - 57.4 (78) kW (hp). Specific fuel consumption - 13.4 l/h
Application: Designed for compacting bases made of various road building materials and coatings made of bitumen-mineral mixtures for large volumes of work.

General information:

Brand (type): DU-97
GOST, TU: TU 4824-060-00239959-99
Length, mm: 4,050
Width, mm: 1 850
Height, mm: 3,050
Weight, kg: 7,600
Manufacturers: JSC "Raskat"
OKP code: 482412

Characteristics

Technical characteristics: The width of the compacted strip is 1500 mm. Roller diameter is 1070 mm. Disturbing force - 44 kN. Vibration frequency - 50 Hz. Number of pneumatic wheels: 4. Travel speed, operating speed - 0-8 km/h, transport speed - 0-12 km/h. Hydrostatic transmission Engine power, 48/46 kW
Application: Designed for compacting road bases made of various road construction materials and coatings made of bitumen-mineral mixtures for large volumes of work.

General information:

Brand (type): DU-99
GOST, TU: TU 4824-060-00239959-99
Length, mm: 3 920
Width, mm: 2 200
Height, mm: 3,500
Weight, kg: 10,000
Manufacturers: JSC "Raskat"
OKP code: 482412

Characteristics

Technical characteristics: The width of the compacted strip is 1700 mm. Roller diameter - 1200 mm. Disturbing force - 65 kN. Vibration frequency -50 Hz. Number of pneumatic wheels 4. Travel speed 0-12 km/h. The transmission is hydrostatic. Engine power - 73.6/72 kW
Application: Designed for compacting road bases and coatings made of various road building materials during large volumes of work during the construction of highways.

General information:

Brand (type): DU-101
GOST, TU: TU 4824-060-00239959-99
Length, mm: 6 400
Width, mm: 2 200
Height, mm: 3,200
Weight, kg: 18,000
Manufacturers: JSC "Raskat"
OKP code: 482411

Characteristics

Technical characteristics: Engine YaMZ-236-G1. Engine power - 110 kW. Engine cooling is water. Fuel consumption - 23.87 liters/hour. Rechargeable battery 6ST-182 EM. Voltage - 12 V. Compacted width - 2000 mm. Productivity: asphalt up to 3000 sq.m/hour, soil up to 600 cubic meters/hour.

General information:

Brand (type): DU-100
GOST, TU: TU 4824-060-00239959-99
Length, mm: 4 800
Width, mm: 2 200
Height, mm: 3,500
Weight, kg: 14,000
Manufacturers: JSC "Raskat"
OKP code: 482411

Characteristics

Technical characteristics: The width of the compacted strip is 2000 mm. Number of pneumatic wheels 4 + 4 Travel speed, 0-16 km/h. Hydrostatic transmission Engine power - 76.3/72 kW
Application: Designed for compacting bases made of various road building materials and coatings made of bitumen-mineral mixtures during large volumes of work during the construction of highways.

General information:

Brand (type): REM-25
Length, mm: 7 100
Width, mm: 3,300
Height, mm: 4 100
Weight, kg: 25,000
Manufacturers: JSC "Raskat"
OKP code: 482412

Characteristics

Technical characteristics: Transmission - hydrostatic. Steering- hydrostatic. Roller type - cam. Number of rolls - 2 pcs. The cams are permanently fastened (by welding). Speed, working: forward/backward 0 … 4.5 / 0 … 4.5 km/h. Transport: forward/backward 0 … 7 / 0 … 7 km/h. The maximum climbable grade on an uncompacted surface is at least 100%. Roll angle, not less than 32%. The width of the compacted strip is 2400 mm. Roller diameter, front/rear - 1600/1600 mm. The height of the cams is 180 mm. Number of cams - 132 pcs. Ground clearance - 1000 mm. The smallest turning radius of the machine along the outer contour of the track, no more than 8750 mm. Bulldozer blade, width/height/height with grid - 3700/1000/2190 mm. Engine (fuel consumption, liters/hour) YaMZ-238B, diesel liquid cooling 220/300 kW/hp (46.38)
Application: The compactor roller REM-25 is designed for compacting soils, landfills of solid industrial and household waste.
Description: The REM-25 road roller increases the degree of compaction and depth of soil development to increase their bearing capacity, shear resistance, reduce porosity, compressibility, and water permeability of earthen structures. It also opens up wide possibilities for using the REM-25 machine for highly efficient compaction of soils, gravel-crushed stone mixtures and others building materials in the construction of industrial zones, airfields, dams, dikes, port facilities, and in road construction.

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Self-propelled road rollers are classified according to the type of working body, operating principle, method of movement, number of axles and number of rollers.

Based on the type of working body, rollers with smooth rollers, cam rollers, lattice rollers, pneumatic rollers and combined rollers are distinguished.

The first type of roller is characterized by the fact that the roller shells have a smooth work surface.In the second type of rollers, rows of cams are rigidly fixed on the roller shells. The stress on the contact surface of the cams with the ground is several times greater than the stress under the roller with smooth drums. Therefore, during the first pass, when the soil is still loose, the cams are completely immersed in it and, as a result, the roller drum also comes into contact with the soil. During subsequent passes of the roller, the immersion of the jaws into the soil is reduced due to its compaction. Cam rollers are effective only when compacting loose cohesive soils . The thickness of the compacted layer does not exceed 22-30 cm.

In a lattice road roller, the drum shell is made in the form of a lattice made of cast metal elements. Such rollers are used to compact both cohesive and non-cohesive lumpy soils that contain solid inclusions. The latter are crushed by the roller grid, which significantly improves the quality of compaction.

Pneumatic rollers, unlike rollers with smooth rollers, allow the load to be applied to the material being compacted for a long time. When passing over a compacted surface, due to the deformation of the pneumatic wheel, a voltage arises on the area of its contact with the compacted material, the duration of which is measured in tenths of a second.

During this time, the load manages to spread into the depth of the compacted layer and cause irreversible deformations in it. Road pneumatic rollers with a wheel load of about 5 tons can compact layers of the earth's surface (except sand and clay) and layers road pavements up to 30 cm thick.

Suret 2- Classification of road rollers by type of working body

The combined roller is equipped with working elements characteristic of road rollers various types. The most common rollers are those with pneumatic wheels and a vibrating drum, which provide the greatest versatility of the machine in terms of compaction. various materials- from loam and asphalt concrete mixture to coarse materials and sand.

Just like pneumatic rollers, combined ones have special tires high pressure. The tires provide compaction of the material at the surface, and the vibratory drum - at a depth exceeding the range of action of the tires. A smooth surface roller creates a smooth surface for the material being compacted, which is required in pavement construction.

The working bodies of the rollers are divided into driving and driven ones. Torque from the internal combustion engine is transmitted to the driving working bodies. The driven working bodies of self-propelled road rollers are guides and, as a rule, serve to turn the machine.

According to the operating principle, road rollers are divided into static and vibrating.

A static road roller compacts under the influence of gravity when the working element rolls over the material, while a vibrating roller compacts due to gravity and periodic vibrations of one or more working elements.

To create vibration, as a rule, an unbalanced vibration exciter is built into the drum, driven by the roller transmission. The use of vibration makes it possible to reduce the number of roller passes along one track by 1.5-3 times, increase the thickness of the compacted layer (in some cases up to 1.5 m or more), and also compact coarse materials.

According to the method of movement, rollers are divided into trailed, semi-trailer and self-propelled. In a trailed roller, its mass is completely transferred to the material being compacted, and in a semi-trailer, part of its mass is transferred to the tractor through the coupling device. Pneumatic wheeled tractors and tractors are used with such rollers.

Self-propelled rollers include an engine, power transmission and mover.

According to the number of axles, rollers are divided into single-axle, two-axle and three-axle.

Based on the number of rollers, there are single-rollers, two-rollers and three-rollers.

In biaxial double-drum rollers, the rollers are located one after the other, which ensures uniform compaction over the entire width of the compacted strip formed as the roller passes. The width of both rollers is usually the same.

Two-axle three-roller rollers are equipped with two narrow driving rear rollers and a wide driven roller.

Widely spaced drive rollers ensure good lateral stability skating rink

In addition, large-diameter drive rollers extend beyond the dimensions of the roller and make it possible to easily overcome movement resistance and come close to walls, high curbs and other obstacles. The rollers of these rollers are arranged in plan so that the rear ones overlap the track of the front roller by 100-120 mm.

Three-axle three-drum rollers are used for final finishing of asphalt concrete pavements and leveling of the compacted surface. These rollers are equipped with three rollers of the same width, two of which are driven guides. The design of the roller suspension allows the weight of the roller to be redistributed along the axes depending on the unevenness of the compacted surface. All protrusions on the surface are rolled away with high blood pressure and level out.

Biaxial three-roller static roller consists of a frame, a guide and two drive rollers, an engine, a transmission, a driver's workplace with control mechanisms, lighting devices, cleaning scrapers and a system for wetting the working surface of the rollers.

The frame serves as a supporting structure on which all the assembly units of the skating rink are mounted. Engine front brackets and rear support, fixed to the flywheel housing, mounted on support brackets and frames.

The gearbox is equipped with one bracket on each side, with which the gearbox, as well as the engine, is mounted on brackets and frames.

Suret 3- Biaxial three-drum static roller

1,6 - rollers, 2 - cleaning scraper, 3 - lighting devices, 4 - control mechanisms, 5 - driver's workplace, 7 - frame, 8 - fork

The engine and gearbox are attached to the frame brackets with bolts and nuts. Gearbox connected to gearbox cardan shaft, installed at the rear of the frame.

With front support legs, the gearbox is bolted to brackets welded to the sides of the frame. The rear supports of the gearbox are the axle cages, installed in the frame brackets and tightened with bolts.

Two driving and one guide rollers serve as the working parts of the roller. The diameter of the drive roller is 1.6 times greater than the diameter of the guide, and the width is 2 times less.

Widely spaced drive rollers provide good lateral stability of the roller. The main compaction is performed by the rear drive rollers, which account for 2/3 of the roller's mass. After the roller passes, a trace remains from the rear rollers in the form of two narrow stripes. The strip formed in the middle is compacted over the next two passes of the roller.

The rollers of the roller are shells rolled from sheet metal and welded along the generatrix. To obtain a rolled surface without traces from the edges of the rollers, rounded chamfers with a width of 15-18 mm are made on the outer edges of their shells. At the ends, discs are welded into the shells, to which cast hubs are welded. They are equipped with roller bearings that serve as supports for the axle. The internal cavity of the rollers is filled with ballast through holes in the disks, closed with lids, to increase the mass of the roller and the pressure on the material being compacted. Water, dry or wet sand is used as ballast.

The gear ring of the final final drive of the roller is secured to the inner disk of the drive roller with studs and nuts. The common axis of the drive rollers is secured with locking screws in the frame brackets. Tapered roller bearings are adjusted with bolts through an end washer.

The guide roller consists of two identical sections mounted on one common axis. The sections can rotate freely independently of one another, which makes it easier to turn the roller and prevents shifting of the compacted material. The gap between the ends of the guide roller sections does not exceed 3 mm. The fixed axis of the drum is held by bolts in trunnions connected to the frame. The frame is hingedly connected by a fork, which ensures rotation of the drum in a vertical plane at an angle of up to 35. The axes of the hinged fastening of the fork and the fork itself coincide with the longitudinal plane of the roller. The upper part of the fork ends with a pivot pin, with which the fork is installed in the seat of the roller frame using two tapered roller bearings. Part of the kingpin protrudes above the socket. A lever for turning the drum is attached to its splined end.

Let's consider the kinematic diagram of a biaxial three-drum static roller. Torque from crankshaft engine through coupling transmitted to the drive rollers through a power transmission consisting of a hydromechanical gearbox, cardan shaft, gearbox with differential and gear final drives for driving drive rollers.

Multi-disc friction clutches front and reverse installed on input shaft gearboxes are used to quickly and smoothly change the direction of movement of the roller (reversal). The smooth start of the roller movement in any direction is necessary to eliminate slipping of the drive rollers and obtain a flat surface of the compacted material.

The differential allows the drive rollers to rotate at different frequencies when the roller turns, which protects the compacted coating material from shifting and reduces wear on power transmission parts.

The differential is equipped with a locking clutch, which disengages it, linking the left and right output shafts of the gearbox into one unit. Differential locking is necessary in cases where one of the drive rollers encounters any obstacle or is excessively pressed into the coating being rolled.

In this case, the less loaded roller begins to rotate at a higher frequency (slips) and cannot develop the necessary traction force.

Suret 4 - Installation of transmission elements on the frame of a three-drum static roller

1,5,8,9,10,11,12,13 - brackets, 2 - engine, 3 - support, 4 - gearbox, 6 - shaft, 7 - gearbox

A band brake is installed on the primary shaft of the gearbox, designed for emergency stopping of the roller and braking while parking.

The guide roller is rotated using the hydraulic cylinder of the roller steering mechanism.

A three-axle three-roller static roller, unlike a two-axle one, is equipped with rollers of the same width, arranged in one line. The roller consists of a frame, a drive roller, driven rollers, an engine with a gearbox located in the rear part of the frame, a roller drive gearbox, electric lighting, roller control levers, seats, an awning, and devices for cleaning and wetting the rollers.

The design of the triaxial roller allows for the most even coating due to the wave-free rolling method. The design of the driven rollers of a three-axle roller is similar to the design of the guide roller of a two-axle roller.

The difference is that the roller king pin is equipped with a lock that secures the front driven roller and prevents its axial vertical movement.

The contact lines of all three rollers with the compacted material are in the same plane, which allows you to obtain a flat surface.

During transportation, the lock is opened and the drum freely follows the road surface without creating a load on the roller frame. The design feature of vibrating rollers is that a vibration exciter is built into the drum, which significantly increases the efficiency and quality of compaction. When the vibration exciter is turned off, the rollers operate as static ones.

Self-propelled vibrating roller is a two-axle machine consisting of three units: a vibrating drum with a semi-frame, power unit, rear axle with two driving pneumatic wheels. On the frame of the power unit there are power point and an air-conditioned driver's cabin. The joint between the unit and the vibratory drum frame and two hydraulic cylinders for rotating the roller are attached to the lower front part of the frame.

The skating rink is equipped with a centralized pneumatic system for inflating tires and blocking the rear axle, hydraulic brakes. The skating rink uses a hydrostatic drive for pneumatic wheels, vibrating drums and steering.

The hydraulic system includes two power circuits with closed circulation of working fluid and a hydraulic steering wheel. The vibrating drum is welded with a smooth metal shell. It rests on ball bearings installed in cups connected to the frame through rubber-metal shock absorbers.

Suret 5 - Self-propelled vibrating roller

1 - power unit, 2 - pneumatic wheel, 3 - power unit, 4 - cabin, 5 - pneumatic system, 6 - vibrating drum, 7 - half frame, 8 - hinge, 9 - hydraulic cylinder

Inside the drum, in the hubs on roller bearings, a vibrating shaft with two pairs of unbalances is installed. The unbalances are rigidly fixed to the vibrating shaft and are driven together with it from the hydraulic motor through gear coupling. The unbalances are installed freely on the cylindrical journals of the vibrating shaft and, when the direction of its rotation changes, they rotate through an angle of 135, changing the driving force of the vibration exciter from the minimum value to the maximum.

In operating mode, the vibrating drum is driven by a hydraulic motor (not shown in the figure) through a bevel gearbox and a ring gear.

A self-propelled pneumatic roller is a two-axle machine consisting of two articulated units: a power unit with four driving pneumatic wheels and a pneumatic wheel with five loaded and pneumatic wheels, of which four are driving. The latter are grouped in pairs on power balancing gearboxes, swinging relative to the longitudinal axis of the roller. This design ensures uniform loading of the wheels regardless of the unevenness of the compacted surface of the material.

The power unit and driver's cabin are located on the frame of the power unit. The joint joint of the units and two hydraulic cylinders for turning the roller are attached to the lower front part of the frame. To achieve the required weight of the roller, the internal volumes of the frame are filled with ballast.

The roller is equipped with a centralized pneumatic system, hydraulic brakes and a wetting system. The wetting liquid stored in the tanks is supplied under pressure to the nozzles, which spray it onto the working surface of the pneumatic wheels.

Each pair of drive wheels of the power and pneumatic wheel units is driven by a hydraulic motor through a balancing gearbox, which is a three-stage gear transmission. Trunnions are attached to its body. The cylindrical parts of the axles are mounted on spherical cast iron liners, which are fixed in the covers of the unit frame supports.

Transverse swing of the gearbox in the liners - at an angle up to 8°. This allows the wheels mounted on the output shaft of the gearbox to follow road irregularities. Torque from the hydraulic motor is transmitted through a gear coupling to the drive shaft-gear and then through helical gears to the output shaft of the gearbox.

The wheel hubs are mounted on the shaft cone and are kept from turning by keys. The wheels are secured to the hubs with bolts. The hubs have holes for supplying air from the pneumatic system to the wheels through the tire inflation mechanism, pipeline and shut-off valve. A parking brake band pulley is installed on the gear shaft of the gearbox.

The pneumatic system for regulating air pressure in tires is designed to gradually increase the air pressure in tires when compacting road construction materials from 0.3 to 0.8 MPa. The system also allows you to maintain a pressure of 0.15 - 0.2 MPa in one of the roller tires (in case of damage). This makes it possible to continue moving the roller to the base without changing wheels.

A self-propelled combined roller is a two-axle machine consisting of two articulated units: a power unit with four driving pneumatic wheels and a vibration unit with a vibrating drum.

The working compacting elements of the roller are four pneumatic wheels and a rigid metal vibrating drum. Consistent exposure of the compacted material to static and vibration loads increases the performance of the roller.

Suret 6 - Self-propelled combined roller

1 - power unit, 2 - cabin, 3 - vibrating drum, 4 - vibration unit, - hinge, 6 - hydraulic cylinder, 7 - pneumatic system, 8 - pneumatic wheel, 9 - brake, 10 - power unit

Due to the small distance between the axes of the working parts, the pneumatic wheels are located in the zone of the compacted strip, which is under the vibration influence of the vibrating drum, which increases the efficiency of compaction.

The joint hinge is structurally no different from the hinge of a self-propelled vibratory roller. The hinge is located in the middle between the axes of the pneumatic wheels and the vibrating drum. The hinge can be rotated about the horizontal axis by 8 degrees when the roller moves over an uneven surface. The hinge is rotated relative to the vertical axis by two hydraulic cylinders. This placement of the articulation joint reduces the turning radius and also ensures that the working parts of the machine can pass track to track on curved sections.

The roller is equipped with a centralized pneumatic system, hydraulic brakes and a wetting system.

Torque from the engine is transmitted through the clutch to the drive gear of the input shaft of the transfer gearbox. Reversible axial piston hydraulic pumps and two gear hydraulic pumps are installed on the output shafts of the transfer gear through gear couplings.

The roller uses a hydraulic drive of a vibrating drum and pneumatic wheels, unified with the hydraulic drive of a self-propelled vibrating roller. The difference is that combination roller To drive the pneumatic wheels, two hydraulic motors are used, and not one, like a vibrating roller.

In transport mode, the working hydraulic lines of the adjustable pump are constantly connected to the hydraulic motors that drive the pneumatic wheels of the power unit. Rotation to the pneumatic wheels is transmitted from hydraulic motors through balancing gearboxes.

In operating mode, the hydraulic motor of the vibrating drum drive is connected to the pump. The vibrating drum is driven through a bevel gearbox and a ring gear.

The hydraulic lines of the adjustable pump are permanently connected to the hydraulic motor of the vibration exciter drive. The unbalances are rigidly fixed to the vibrating shaft and are driven together with it from the hydraulic motor through a gear coupling. Around each of the unbalances attached to the shaft, external unbalances can be rotated, which consist of two disks connected to each other by a segment plate.

External unbalances are installed freely on the cylindrical necks of the vibrating shafts and when changing the direction of its rotation they rotate, changing the driving force of the vibration exciter from the minimum value to the maximum. The gear pump is used to replenish power circuits with working fluid and supply fluid to the hydraulic boosters of hydraulic pumps. The pump delivers working fluid into the hydraulic steering wheel. Steering and hydraulic system The rotation of the roller is not fundamentally different from a similar mechanism and system of a self-propelled vibratory roller.