Parallelogram wheel leg walking mechanism

Abstract

The invention relates to a parallelogram wheel-leg walking mechanism. It contains a hinge, a steering wheel, a joint, a connecting block, a steering oil cylinder and a swing oil cylinder are arranged between the hinge and the steering wheel, and a first pin shaft and a second pin shaft are respectively arranged above and below the hinge. Both the joint and the connecting block are triangular, and the adjacent corners of the joint and the connecting block are hinged together by means of the third pin shaft, and their other corners are respectively hinged on the first pin shaft and the wheel shaft of the steering wheel, and one end of the steering cylinder passes through the third pin shaft. The five-pin shaft is hinged on the third corner of the connecting block, the other end of the steering cylinder is hinged on the second pin shaft, one end of the swing cylinder is hinged on the third corner of the joint by means of the fourth pin shaft, and the other end of the swing cylinder is hinged on the third corner of the joint. One end is also hinged on the second pin shaft. When the steering wheel is running straight, the first pin shaft, the second pin shaft, the fifth pin shaft and the third pin shaft are deformed in a parallelogram. The invention is suitable for walking excavators. The use of the parallelogram wheel-leg walking mechanism can improve the passability and stability of the whole machine.

Description

technical field [0001] The invention relates to a construction machine. Specifically, it is the wheel-leg walking mechanism of a walking excavator. Background technique [0002] It is known in the automobile manufacturing industry that, on the automobiles that adopt two bridges, the trapezoidal tie rod mechanism is used to realize the steering, so that the centerlines of the two steering wheels of the automobile intersect at one point. On multi-axle steering trucks, such as off-road cranes and heavy off-road vehicles, trapezoidal tie rod mechanisms are generally used to realize steering, and these bridges are generally connected by fixed frames, which makes the passability and stability of the whole machine poor. . Contents of the invention [0003] The problem to be solved by the present invention is to provide a parallelogram wheel-leg walking mechanism. The use of the parallelogram wheel-leg walking mechanism can improve the passability and stability of the whole mac...

AI Technical Summary

Problems solved by technology

On multi-axle steering trucks, such as off-road cranes and heavy off-road vehicles, trapezoidal pull-rod mechanisms are generally used to realize steering, and these bridges are generally connected by fixed frames, which makes the passability and stability of the whole machine poor.

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