Walking assembly of crawler-type engineering vehicle and control method thereof

Abstract

The invention discloses a walking assembly of a crawler-type engineering vehicle and a control method thereof. The walking assembly of the crawler-type engineering vehicle comprises a controller, a walking mechanism and a hydraulic system, wherein the walking mechanism comprises four crawlers which are horizontally arranged in sequence, two crawlers are arranged at the left side, and the other two crawlers are arranged at the right side; the hydraulic system comprises four hydraulic pumps and four hydraulic motors; the four crawlers are driven by the four hydraulic motors, and the four hydraulic pumps and the four hydraulic motors are in one-to-one correspondence; and an output end of the controller is connected with a control end of a variable control mechanism of the hydraulic pump. In the walking assembly, the controller can control the discharge capacity of each hydraulic pump so as to control the actual output rotational speed of each hydraulic motor, so the four crawlers are encircled at a preset speed. The control on the walking assembly can realize the turning of the crawler-type engineering vehicle, a turning system does not need to be arranged independently, and the whole structure of the crawler-type engineering vehicle can be simplified so as to facilitate control and operation.

Description

technical field [0001] The invention relates to engineering vehicle technology, in particular to a walking assembly of a crawler-type engineering vehicle, and also relates to a control method of a crawler-type engineering vehicle. Background technique [0002] Based on the strong adaptability of the crawler-type walking mechanism, the crawler-type structure is generally used in the walking assembly of the existing engineering vehicles to form a crawler-type walking assembly. The crawler-type traveling assembly generally includes a traveling mechanism and a hydraulic system corresponding to the traveling mechanism. [0003] Please refer to figure 1 , which is a structural schematic diagram of a traveling mechanism in the prior art crawler-type traveling assembly. The traveling mechanism includes a vehicle frame 100 and four crawler belts 110 , and the four crawler belts 110 are respectively arranged at four corners of the vehicle frame 100 , that is, both sides of the front...

AI Technical Summary

Problems solved by technology

This not only makes the overall structure of the tracked engineering vehicle more complicated, but also increases the complexity of the control operation of the tracked engineering vehicle

At the same time, due to the differences between the inherent characteristics of the hydraulic components themselves, nonlinear factors, different ground attachment conditions on the left and right sides, and different traction forces on the left and right sides, the speed of the crawlers on the left and right sides of the tracked engineering vehicle will still be inconsistent. Uncontrollable deflection of the tracked walking assembly, which also increases the difficulty of control of the tracked engineering vehicle

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