Walking driving device for road roller

Abstract

The invention discloses a walking driving device for a road roller. The walking driving device for the road roller comprises a bothway variable pump, an electromagnetic valve, a first walking motor used for driving rear wheels of the road roller, a second walking motor used for driving front wheels of the road roller, a first pipeline, a second pipeline, a third pipeline, a fourth pipeline and a fifth pipeline. One end of the first pipeline is connected with the bothway variable pump, and the other end of the first pipeline is connected with one oil port of the electromagnetic valve. One end of the second pipeline is connected with the first pipeline, and the other end of the second pipeline is connected with the first walking motor. One end of the third pipeline is connected with the other oil port of the electromagnetic valve, and the other end of the third pipeline is connected with the second walking motor. One end of the fourth pipeline is connected with the second walking motor, and the other end of the fourth pipeline is connected with the bothway variable pump. One end of the fifth pipeline is connected with the fourth pipeline, and the other end of the fifth pipeline is connected with the first walking motor. By means of the walking driving device for the road roller, the walking speed of the road roller in the scene transferring process can be larger than the walking speed of the road roller during road rolling operation.

Description

technical field [0001] The invention relates to a driving device, in particular to a traveling driving device of a road roller. Background technique [0002] Road rollers belong to the category of road equipment in construction machinery. They are widely used in the filling and compaction operations of large-scale engineering projects such as high-grade highways, railways, airport runways, dams, and stadiums. They can roll sandy, semi-cohesive and cohesive soils, Subgrade stabilized soil and asphalt concrete pavement layer. [0003] When the road roller is working on the road, it needs to perform multiple transitions. In the prior art, no matter when the road roller is in the road rolling operation or when it is transitioning, the first travel motor for driving the rear wheel of the road roller and the front wheel for driving the road roller The second travel motors of the wheel are both working, that is, the two travel motors equally share the pumped pressure oil, resultin...

AI Technical Summary

Problems solved by technology

[0003] When the road roller is working on the road, it needs to perform multiple transitions. In the prior art, no matter when the road roller is in the road rolling operation or when it is transitioning, the first travel motor for driving the rear wheel of the road roller and the front wheel for driving the road roller Both the second travel motors of the wheel work, that is, the two travel motors equally share the pumped pressure oil, resulting in the speed of the road roller during the transition and the travel speed during the rolling operation, which cannot achieve a fast transition

Images