Telescopic device for arm length of excavator

Abstract

The invention provides a telescopic device for arm length of an excavator. The telescopic device comprises a bucket, a bucket rod, a boom, a bucket rod hydraulic cylinder and a telescopic piece, wherein the bucket is hinged to the end part of the bucket rod and is hinged to one end of a connecting rod; the other end of the connecting rod is hinged to a rocker arm; the rocker arm is hinged to the bucket rod; the middle part of the bucket rod is hinged to one end of the bucket rod hydraulic cylinder; the other end of the bucket rod hydraulic cylinder is hinged to the connecting rod and the rocker arm; a first telescopic shaft is arranged at one end of the telescopic piece; a third telescopic shaft is arranged at the other end of the telescopic piece; a cavity used for accommodating the telescopic piece is formed in the bucket rod; clamping grooves used for accommodating the third telescopic shaft are sequentially formed in the two sides of the cavity respectively in a pairing manner; and retention grooves used for accommodating the first telescopic shaft are formed in the end parts of the cavity. The telescopic device for the arm length of the excavator is a device for finishing free stretching of the excavator through the lever principle and reaches the purpose of according with modernized design of ergonomics with safety, efficiency, humanization and the like.

Description

technical field [0001] The invention relates to a telescoping device for the arm length of an excavator. Background technique [0002] Nowadays, mechanical facilities like excavators can be seen everywhere in our lives. For example, it can be seen in construction sites in cities and towns, factories and other places. Since the birth of mechanical facilities such as excavators, they have continuously solved some large and small problems for human beings. In many projects, they have greatly saved manpower and greatly improved work efficiency. But then there were some problems. [0003] According to market research, 80% of excavator users believe that the current excavator has certain limitations. The arm length of the excavator is not enough. It is necessary to move the fuselage to a suitable location for construction, or directly replace an excavator with a longer arm, which greatly affects the work efficiency and brings great changes to the staff. [0004] Therefore, it ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a telescopic device for the arm length of an excavator, which solves the problem in the prior art that the length of the excavator cannot meet the needs of the builder during use, and the machine body is constantly moved or changed to another arm length. Excavators and other issues

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