Overhead working device of hydraulic excavator

Abstract

The invention discloses an overhead working device of a hydraulic excavator, which is in a three-section arm structure, wherein a middle arm oil cylinder and a bucket arm oil cylinder are arranged below arms; the front end of the movable arm is articulated with the middle arm; the other end of the middle arm is articulated with the bucket arm; an articulated point at one end of the middle arm oil cylinder is arranged below the movable arm; an articulated point at the other end of the middle arm oil cylinder is arranged below the middle arm, and is close to the other side of the movable arm; an articulated point at one end of the bucket arm oil cylinder is arranged below the middle arm, and is close to the other side of the bucket arm; and an articulated point at the other end of the bucket arm oil cylinder is arranged below the bucket arm. The working device of the excavator is particularly suitable for overhead building dismantling working such as building dismantling, furnace dismantling and smokestack dismantling, and is high in efficiency, safe, reliable, simple in structure, convenient to manufacture and low in cost.

Description

technical field [0001] The invention relates to an excavator, in particular to a working device for the excavator used for high-altitude demolition operations. Background technique [0002] At present, in the demolition of high-altitude buildings such as building demolition, furnace demolition, and smoke window demolition, the manual demolition efficiency is low, the cost is high, and the working conditions are harsh and dangerous, so it is difficult to recruit enough workers. The machine (extended arm type) is equipped with an upper breaker or hydraulic shears, and generally can only be demolished with a floor height of about 4 floors. Contents of the invention [0003] The object of the present invention is to provide a middle arm at the front end of the boom, the other end of the middle arm is hinged with the stick, the middle arm oil cylinder is hinged at the bottom of the boom, and the hinge point of the stick cylinder is arranged at the bottom of the stick. Segment ...

AI Technical Summary

Problems solved by technology

[0002] At present, in the demolition of high-altitude buildings such as building demolition, furnace demolition, and smoke window demolition, the manual demolition efficiency is low, the cost is high, and the working conditions are harsh and dangerous, so it is difficult to recruit enough workers. The machine (extended arm type) is equipped with an upper breaker or hydraulic shears, and generally can only demolish floors with a height of about 4 floors.

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