Single hole piston type hydraulic buffer

Abstract

The invention discloses a single hole piston type hydraulic buffer which comprises a cylinder body. A cylinder head is installed at one end of the cylinder body, and the other end of the cylinder body is sequentially provided with a shaft sleeve, an oil seal and a cylinder cover. The shaft sleeve is sleeved with a sponge. A piston and a piston rod are installed in the middle of the cylinder body. A spring is installed between the piston and the cylinder head. The inner end of the piston rod abuts against the end of the piston. The outer end of the piston rod penetrates through the shaft sleeve, the oil seal and the cylinder cover and stretches out of the cylinder body to be connected with a cylinder cap. A main oil return hole which penetrates through the piston and enables a left cavity of the piston to communicate with a right cavity of the piston is formed in the central axis of the piston. The main oil return hole is of a stepped structure, and an oil return steel ball is arranged in the stepped structure. According to the single hole piston type hydraulic buffer, one main oil return hole is formed only in the central axis of the piston, in this way, when the piston returns, the resistance of oil liquid to the piston does not change, thus, operation of the piston is more stable, and the working stability of the buffer is improved.

Description

technical field [0001] The invention relates to a single-hole piston hydraulic buffer. Background technique [0002] The buffer is to eliminate the impact, vibration and noise generated in order to increase the production efficiency and speed of operation without affecting the operation performance of industrial equipment, to ensure safety and to optimize the production environment. In the prior art, the commonly used piston structure has multiple oil return holes, so when one or more oil return holes are blocked, the oil return resistance of the piston will change, and the piston will not run smoothly , reduce the working stability of the buffer, and processing multiple oil return holes will also cause high processing difficulty and increase processing cost. Contents of the invention [0003] The purpose of the present invention is to provide a single-hole piston type hydraulic buffer to solve the defects of the prior art. [0004] In order to achieve the above object, ...

AI Technical Summary

Problems solved by technology

In the prior art, the commonly used piston structure has multiple oil return holes, so when one or more oil return holes are blocked, the oil return resistance of the piston will change, and the piston will not run smoothly , reducing the working stability of the buffer, and processing multiple oil return holes will also make the processing process difficult and increase the processing cost.

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