Compressor air cylinder and manufacturing method thereof

Abstract

A cylinder of a compressor comprises a cylinder body and a plurality of cylinder sleeve arranged in the cylinder body, the cylinder sleeves have an integral structure, adjacent cylinder sleeves are fixedly connected together, the shape of the cylinder body is corresponding to the cylinder sleeves, and the cylinder body is fixedly sleeved in the cylinder sleeves. The manufacturing process of the compressor comprises utilizing grey cast iron to manufacture the integral cylinder sleeves by a precision casting mode firstly, then placing the integral cylinder sleeves in a compressor shuttering to locate, and casting the compressor cylinder body via cast aluminum materials finally. The cylinder of the compressor enables parallel cylinder sleeves with the same row direction to be near as much as possible without reducing the strength, enables the compressor cylinder body to be closely integrated with the cylinder sleeves without any clearance, eliminating hidden troubles of reducing the working efficiency of the compressor caused by materials and outdated processing methods, reducing the manufacturing cost, and increasing the service life of the compressor.

Description

technical field [0001] The invention relates to the technical field of air-conditioning compressors, in particular to a cylinder of an air-conditioning refrigeration compressor. Background technique [0002] In the design of four-cylinder piston refrigeration compressors for vehicles, in order to reduce the weight of the compressor, most of the body parts are casted from aluminum alloy, and gray cast iron thin-walled cylinder liners are used in the cylinder parts to prolong the service life. The connection method between the cylinder liner and the compressor shell of the traditional four-cylinder piston refrigeration compressor for vehicles is that the cylinder liner 01 is assembled in the shell 02, and the shell is usually cast from aluminum alloy; the cylinder liner is made of mechanical cold processing made. Due to the limitation of vehicle space, the volume of the compressor should be reduced as much as possible under the premise of ensuring the refrigeration performanc...

AI Technical Summary

Problems solved by technology

A group of cylinders in the same direction on the cylinder body, due to the limitation of the center distance position, the positions where the two cylinder liner holes are placed intersect to form a large gap 03 (see figure 1 ) and reduce the strength of the cylinder liner

When the compressor is operating efficiently, the cylinder body expands and deforms due to the weakening of the strength of the gap, which changes the fit and position of the cylinder liner, and even compresses the cylinder liner to deform it, affecting the work of the piston, and at least affects the work of the compressor. If it is heavy, it will cause the cylinder to be stuck or even stuck, and the compressor will be damaged

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