Excavator chassis with folding supporting legs

Abstract

The invention discloses an excavator chassis with folding supporting legs. The excavator chassis comprises a rotary base, wherein the front end of the rotary base is provided with two front leg assemblies which are symmetric in structure; the rear end of the rotary base is provided with two rear leg assemblies which are symmetric in structure; each front leg assembly comprises a front supporting leg, a front leg lifting hydraulic cylinder, a front leg hinged block, a front leg swinging hydraulic cylinder, a front steering base, a front hub, a front tire and a front wheel steering hydraulic cylinder; and each rear leg assembly comprises a rear supporting leg, a rear leg folding hydraulic cylinder, a rear leg lifting hydraulic cylinder, a rear steering base, a rear hub, a rear tire and a rear wheel steering hydraulic cylinder. According to the extractor chassis with the folding supporting legs, the supporting legs have folding functions, so that the space usage of the extractor is small, and therefore, a wider application range is provided for the excavator; moreover, by adopting the scheme for solving the problems that a walking excavator is limited and has high requirements in road transportation, the transportation cost is saved, and the space usage, on a trailer, of the walking excavator is further reduced.

Description

technical field [0001] The invention relates to the field of walking excavators, in particular to an excavator chassis with foldable outriggers. Background technique [0002] In recent years, walking excavators have played a great role in forests, mountains and disaster relief sites. Among them, the outrigger is a key component in the construction of the walking excavator. Through the coordinated action of the front and rear outriggers, the excavator can walk on different terrains. However, the existing walking excavators also have problems such as large space occupation, complicated coupling control, and limited road transportation height when facing narrow entrances and complex construction sites. [0003] Existing walking excavators mainly have the following problems: [0004] 1. The claws of the walking excavator have a small working range; [0005] 2. The outriggers of walking excavators take up a lot of space, which affects the use of narrow space conditions; [0...

AI Technical Summary

Problems solved by technology

[0004] 1. The claws of the walking excavator have a small working range;

[0005] 2. The outriggers of walking excavators take up a lot of space, which affects the use of narrow space conditions;

[0006] 3. The coupling control of the walking excavator is complicated, which increases the failure rate of the hydraulic system;

[0007] 4. Walking excavators are limited in the height limit requirements of road transportation, and special trailers are required, which cannot meet the general requirements

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