Company's main businessMore than 20 products in four major series: impact roller, high-speed hydraulic compactor, wheel bulldozer, and small rollerFor the past 20 years, we have never forgotten our original intention, remained consistent, and provided honest service to every customer, committed to building a high-end compaction machinery strength brand.

Because of focus, so professional! For more than 20 years in the industry, Hawei Heavy Industry has focused on the research and production of impact compaction and hydraulic compaction series products, with strong technical accumulation. Market oriented, relying on elite team collaboration, the technical research and development team focuses on researching products, continuously optimizing and upgrading them; Adhering to the brand philosophy of "user problems, our issues" and the business philosophy of "bringing good products to the market", we strive to create excellent quality with the spirit of craftsmanship.Sales phone number:

　　Double wheel rollerAlso known as a soil compactor, it is a type of equipment used for road construction. Double wheel rollers belong to the category of road equipment in construction machinery and are widely used for filling and compaction operations in large-scale engineering projects such as high-grade highways, railways, airport runways, dams, and sports stadiums. They can roll sandy, semi viscous, and cohesive soils, roadbed stabilized soils, and asphalt concrete pavement layers. Double wheel rollers are suitable for various compaction operations due to the gravity of the machinery itself, ensuring that the compacted layer is compacted without deformation. Double wheeled road rollers are divided into two categories: steel wheel type and tire type.

Operating Procedures

1. When working, the double wheel roller should start first before starting the vibration, and the internal combustion engine should be set to medium speed first, and then adjusted to high speed.

2. When shifting or reversing, the engine should be stopped first, and when shifting, the engine speed should be reduced.

3. It is strictly prohibited for the double wheel roller to vibrate on solid ground.

4. When rolling soft roadbeds, they should be rolled 1-2 times without vibration before vibration rolling.

5. During compaction, the vibration frequency should be kept consistent. For adjustable vibration double wheel rollers, the vibration frequency should be adjusted before operation, and the vibration frequency should not be adjusted without vibration.

6. The adjustment of the reversing clutch, shock absorber clutch, and brake should be carried out after the main clutch is disengaged.

7. When going up or down hills, do not use the fast gear. It is strictly prohibited to use the fast gear during sharp turns, including when using articulated vibratory double wheel rollers to roll around small turns.

8. The two wheeled roller must not engage vibration while driving at high speeds.

9. When stopping the engine, the vibration should be stopped first, then the reversing mechanism should be placed in the middle position, the transmission should be in neutral, and the handbrake control lever should be pulled later. The internal combustion engine should idle for a few minutes before turning off.

10. Other homework requirements should comply with the regulations for static pressure double wheel rollers.

① Whether going uphill or downhill, the bottom layer of asphalt mixture must be clean and dry, and an asphalt binder layer must be sprayed to prevent the mixture from slipping during rolling.

② Whether it is uphill rolling or downhill rolling, the driving wheel of the double wheel roller should be at the back. This approach has the following advantages: when going uphill, the rear drive wheels can withstand the slope and the driving force provided by the machine itself, while the front wheels initially compact the road surface to withstand the larger shear force generated by the drive wheels; When going downhill, the impact force generated by the self weight of the two wheel roller is offset by the braking of the driving wheels. Only the mixture crushed by the front wheels has the ability to support the shear force generated by the driving wheels.

③ When rolling uphill, the double wheel roller should start, stop, and accelerate smoothly to avoid excessive or insufficient speed.

④ Before rolling uphill, the mixture should be cooled to the specified lower limit temperature, and then subjected to static preloading. Only when the temperature of the mixture drops to the lower limit (120 ℃), vibration compaction should be used.

⑤ When rolling downhill, sudden speed changes and braking should be avoided.

⑥ When rolling downhill on steep slopes, a lightweight double wheel roller should be used for pre compaction first, and then a heavy-duty double wheel roller or vibrating double wheel roller should be used for compaction.

Low temperature impact

Low temperature makes it difficult to start the engine, mainly due to the high viscosity of lubricating oil, decreased working capacity of the battery, and poor fuel atomization.

The viscosity of engine oil increases with decreasing temperature, leading to a decrease in flow performance and deterioration of engine lubrication conditions, resulting in greater resistance to crankshaft rotation.

When the battery is at low temperature, the viscosity of the electrolyte is also high, the permeability decreases, and the internal resistance increases, resulting in a significant decrease in battery capacity and terminal voltage, and even inability to discharge. The voltage drop prevents the starter from obtaining the required output power, making it difficult to achieve the required starting speed.

Due to the low temperature, the crankshaft speed during engine start-up is not high, the intake pipe temperature and gas flow rate are low, and the quality of fuel atomization is poor, which further increases the difficulty of engine start-up.

Under low temperature conditions, various oils have high viscosity and poor fluidity, which poses difficulties for the operation of the double wheel roller and exacerbates the wear of the components.

The viscosity of lubricating oil is high, which increases the loss of stirring power during the operation of the mechanism, resulting in a decrease in engine power and low efficiency of the transmission system, thereby reducing the driving ability of the walking and vibration mechanism of the two wheel roller.

The poor fluidity of lubricating oil increases the difficulty of lubricating certain components, reduces the lubrication effect, and thus exacerbates the wear of engine and transmission components.

The viscosity of the working fluid is high, which also increases the resistance of the pipeline, making it difficult to operate the hydraulic steering. The efficiency of the hydraulic drive brake deteriorates, making it difficult to drive the vehicle and having an adverse effect on safe driving.

There is a common risk of freezing during construction in cold seasons, such as the freezing of the electrolyte in batteries, which can cause them to terminate their operation; The freezing of cooling water in water-cooled engines can cause the radiator and cylinder block to freeze and crack.