A four-leg walking excavator

Abstract

The invention provides a four-support-leg walking type excavator. Four support legs are symmetrically arranged at the front side, the rear side, the left side and the right side of an underpan. The four-support-leg walking type excavator can achieve supporting through the four support legs, provide a stable operating platform, improve the capacity of obstacle crossing in complex terrains and overall machine supporting, improve the operating stability and the water wading capacity of the overall machine, improve the operating efficiency when wheels swing to the maximum width, achieve supporting through the four support legs at 45-degree inclined slopes, achieve wheel type walking along 4m wide grooves, achieve transverse motion in a four-support-leg supporting state and a four-foot walking function, and steer in narrow terrains with small turning radius.

Description

technical field [0001] The invention relates to an excavator, in particular to a walking excavator with four legs. Background technique [0002] In order to overcome complex mountain conditions, human beings have innovatively developed walking excavators capable of mountain operations. Walking excavators can complete mountain obstacle surmounting and excavation tasks through the coordinated actions of the walking chassis and the stick telescopic working device. However, existing walking excavators also have fatal flaws in the face of harsh terrain environments and complex construction sites: because the walking excavator adopts the structure supported by the front leg outriggers and the rear leg tires, when carrying out engineering operations, It is difficult to provide a stable operating platform for tasks such as emergency rescue, demining and detonation; due to the asymmetric structure of the front and rear legs of the walking excavator, it is difficult to complete specif...

AI Technical Summary

Problems solved by technology

However, existing walking excavators also have fatal flaws in the face of harsh terrain environments and complex construction sites: because the walking excavator adopts the structure supported by the front leg outriggers and the rear leg tires, when carrying out engineering operations, It is difficult to provide a stable operating platform for tasks such as emergency rescue, demining and detonation; due to the asymmetric structure of the front and rear legs of the walking excavator, it is difficult to complete specific operating tasks and obstacle-crossing tasks both forward and backward; When the walking excavator swings to the widest front and rear legs, the direction of the four wheels cannot be guaranteed to be consistent, so it cannot move forward quickly under this working condition; because the walking excavator cannot move forward with four legs Support, so the wading depth cannot be greater than 1.5m; because the walking excavator cannot be supported by four legs, it cannot complete the crab-shaped movement of the four-leg coordinated action and four-legged walking; because the walking excavator cannot four-wheel independent Steering, so it is difficult to complete the steering action with a small turning radius of swinging legs and wheel rotation, etc.

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