Damping connection arm for quartering hammer cantilever of excavator

Abstract

The invention discloses a damping connection arm for a quartering hammer cantilever of an excavator. The damping connection arm comprises a damping device which comprises two sections of piston type casings which are connected in series and a hydraulic nitrogen gas energy storage device, wherein an annular rubber body and a hydraulic oil cylinder are arranged in the first section of piston type casing; the hydraulic oil cylinder is arranged in a ring center of the annular rubber body; a cylinder body and a piston rod of the hydraulic oil cylinder are respectively fixed at two ends of the first section of piston casing; the hydraulic oil cylinder is hydraulically connected with the external hydraulic nitrogen gas energy storage device; and a spring is arranged in the second section of piston type casing. According to the damping connection arm disclosed by the invention, due to the adoption of a three-stage combined damping design, the vibration amount of a quartering hammer of the excavator during operation is effectively reduced and further an excavator body is more stable and is low in vibration noise, the function for protecting the excavator is achieved, the fault rate of the excavator is reduced and the service life of the excavator is prolonged.

Description

technical field [0001] The invention belongs to the field of construction machinery, in particular to an excavator breaker cantilever shock-absorbing connecting arm. Background technique [0002] The crushing function of the excavator is the largest expansion of the excavator beyond its excavation function. It is used more and more widely. It is mainly responsible for urban reconstruction, road reconstruction, demolition of dilapidated houses, national defense construction and post-disaster reconstruction. It plays an important role in national construction. very important role. The mechanical vibration generated by the excavator during the crushing operation not only has a great impact on the operating device, hydraulic system, engine and the entire vehicle body of the excavator, but also, the harsh noise and vibration working environment endanger the physical and mental health of the workers, and the workers will appear Anxiety, irritability. Excavators that perform crus...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an excavator breaker cantilever shock-absorbing connecting arm to solve the problems of the existing excavator breaker when the rigid steel vibrates greatly, the failure rate is high and the noise is high.

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