A symmetrical multi-degree-of-freedom four-wheel all-wheel-drive walking excavator walking chassis

Abstract

The invention discloses a walking type chassis of a symmetrical type multi-freedom-degree four-wheel all-wheel-drive walking type excavator and belongs to the field of application of engineering machinery. The walking type chassis comprises a front right leg (1), a rotation base (2), a rear right leg (3), a lifting oil cylinder (4), a front left leg (6) and a rear front leg (5). The structure of the front right leg and the structure of the front left leg are symmetrical. The structure of the rear right leg and the structure of the rear left leg are symmetrical. The rotation base is of a symmetrical structure and is composed of a central oil tank and two side oil tanks, wherein the two side oil tanks are located at the two sides of the central oil tank in a stepped mode in the vertical direction. The rotation base is connected with the front right leg, the rear right leg, the front left leg and the rear left leg through a lifting oil cylinder (4) and a corresponding sleeve A. According to the walking type chassis, oil streams in the rotation base can be communicated with each other between the central oil tank and the side oil tanks, so that oil storage does not only depend on the inner space of the central oil tank, and the oil storage capacity is increased by at least one time; on the condition of field operation, when fuel oil in a main oil tank is used up, fuel oil in the chassis can be extracted, and therefore the field self-sustaining capacity is high.

Description

technical field [0001] The invention relates to a walking chassis of a walking excavator, in particular to a symmetrical multi-degree-of-freedom four-wheel full-drive walking chassis of a walking excavator, which belongs to the application field of engineering machinery. Background technique [0002] As we all know, a walking excavator is an all-terrain, multi-purpose walking excavator that can be used in complex all-terrain areas such as forests, mountains, and swamps. If a walking excavator is compared to a "multi-habitual operation spider robot", then the walking chassis is its "waist + legs and feet". The functional characteristics of the "waist + legs and feet" require that it can be connected to other parts of the body, realize the 360° rotation of the "waist", and be able to make anthropomorphic movements of the "legs and feet". Broadly speaking, the biggest feature of the walking chassis of the walking excavator is the "integration" of the natural terrain. [0003]...

AI Technical Summary

Problems solved by technology

[0006] 1. The components are relatively complex and the manufacturing process requirements are high;

[0007] 2. The rear wheel is driven, the front wheel is not driven, and the ability to actively drive over obstacles on mountainous terrain is not strong. Drive, can not achieve all-wheel drive, the overall efficiency is relatively reduced by half;

[0008] 3. The oil storage capacity of the chassis fuel tank is not strong, it does not have the ability to expand, and the self-sustaining ability in the field is not high;

[0009] 4. The front paws are fixed on the front legs, and the front paws cannot be rotated and adjusted;

[0010] 5. The front paws lack understanding of terrain diversity, and the functionality is too single. Only relying on the lifting cylinder to expand and contract, the range of swinging up and down of the legs is not large;

[0011] 6. The lightweight design of the eight-ton chassis has not been achieved, and the composite utilization efficiency of parts is not high;

[0012] 7. Under the condition of equal tonnage, the overall function of the chassis is not strong

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