Oil-free piston, processing technology thereof and piston compressor

Abstract

The invention discloses an oil-free piston, a processing technology thereof and a piston compressor. The processing technology of the oil-free piston comprises the following steps that through pressing and forming a ring body of the piston, the structural strength of the ring body is relatively high, so that high temperature resistance and friction resistance are better; through processing the inner wall of the ring body, interference fit of the inner wall of the ring body and the appearance of the piston is formed, and thus the connection between the inner wall of the ring body and the appearance of the piston can be closer; through thermal expansion, the piston can be sleeved into the ring body easily, and after cooling, the ring body can tighten the piston; through the arrangement of gluing, the bonding strength of the ring body is higher, and thus the piston is not prone to falling off, and the service life of the piston is prolonged; and through reheating, the piston, the ring body and a glue layer are integrated, the glue is cured, and thus the purpose of more stable bonding is achieved. Through cutting and drilling of the outer surface, the piston can be adapted to the size of a cylinder; according to the oil-free piston, the ring body is not prone to falling off, and the structural strength of the ring body is high, so that the service life of the piston is high, and as well, the service life of the piston compressor is prolonged.

Description

Technical field [0001] The invention relates to an air compressor, in particular to an oil-free piston and its processing technology and a piston compressor. Background technique [0002] A compressor is a device that provides a power source for pneumatic parts. Most of the existing compressors use pistons, which compress the gas in the piston cylinder to achieve the goal. However, most of the existing pistons are lubricated with lubricating oil, so that the piston can reduce friction during the sliding process. However, in this process, the role of lubricating oil is more important, and in the process of long-term operation, lubricating oil is easy There is burnout and condensation, which damages a series of parts of the piston. In order to solve this problem, the surface of the piston is treated and coated with self-lubricating material on the surface to achieve lubrication and achieve the purpose of oil-free lubrication. However, if the coating method is used directly, the su...

AI Technical Summary

Problems solved by technology

However, most of the existing pistons are lubricated by lubricating oil, so that the piston can reduce friction during the sliding process, but in this process, the role of lubricating oil is more important, and in the process of long-term operation, lubricating oil is easy to Burnout and condensation occur, which damages a series of parts of the piston

In order to solve this problem, the surface of the piston is treated, and self-lubricating materials are coated on the surface, so as to play a role in lubrication and achieve the purpose of oil-free lubrication. The force is relatively weak, therefore, reducing the service life of the piston

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