Novel hydraulic breaker oil way with function of preventing piston from being stuck

Abstract

The invention discloses a novel hydraulic breaker oil way with the function of preventing a piston from being stuck, and relates to the technical field of hydraulic breaker oil ways. According to the technical scheme, the novel hydraulic breaker oil way is characterized by comprising a middle cylinder body and a rear cylinder body, the middle cylinder body is fixedly connected with the rear cylinder body, the piston is arranged in the middle cylinder body, the piston penetrates through the rear cylinder body, an oil way is arranged in the middle cylinder body, and hydraulic oil in the oil way in the middle cylinder body flows into the middle cylinder body from a middle cylinder hole formed in the middle cylinder body in multiple symmetrical directions; and the novel hydraulic breaker oil way has the the effects that oil ways are arranged in the middle cylinder body and the rear cylinder body, the hydraulic oil in the oil ways is input into the middle cylinder body and the rear cylinder body in the multiple symmetrical directions, so that the periphery of the piston is stressed uniformly, uniform centripetal pressure is formed, it is guaranteed that the piston is positioned at an axis symmetric space position in the middle cylinder hole, a uniform circumferential oil film is formed, and therefore the piston easily does reciprocating motion in the oil film, hydraulic clamping force and friction force are reduced, and the phenomena of locking and pulling damage of the piston and the middle cylinder hole are solved.

Description

technical field [0001] The invention relates to the technical field of hydraulic breaker oil circuit, more specifically, it relates to a novel hydraulic breaker oil circuit with anti-piston jamming. Background technique [0002] The power source of the hydraulic breaker is the pressure provided by the excavator, loader or pump station, which can more effectively break stones and rocks in engineering construction and improve work efficiency. [0003] During the working process of the hydraulic breaker, when the piston travels in the middle cylinder, the high-pressure hydraulic oil is input from the bias direction, resulting in a bias pressure on the piston, and the piston cannot be located in the axially symmetrical space of the middle cylinder during the reciprocating movement. On the other hand, it forms the deflection friction force of the piston against the inner hole of the middle cylinder, destroys the oil film between the middle cylinder hole and the piston, and increa...

AI Technical Summary

Problems solved by technology

[0003] During the working process of the hydraulic breaker, when the piston travels in the middle cylinder, the high-pressure hydraulic oil is input from the bias direction, resulting in a bias pressure on the piston, and the piston cannot be located in the axially symmetrical space of the middle cylinder during the reciprocating movement. On the other hand, it forms the deflection friction force of the piston against the inner hole of the middle cylinder, destroys the oil film between the middle cylinder hole and the piston, and increases the hydraulic clamping force and friction force between the middle cylinder hole and the piston, thus making it easy for the piston to Locked and strained with the middle cylinder, causing damage to the equipment and affecting production

Images