Elastic compaction mechanism of air cylinder and valve plate assembly for refrigeration compressor

Abstract

The invention discloses an elastic compaction mechanism of an air cylinder and a valve plate assembly for a refrigeration compressor. The mechanism comprises a crankshaft box, a valve plate gasket, a valve plate assembly, an elastic gasket, a screw threaded sleeve, an air cylinder cover gasket, an air cylinder cover, a clamping ring, a gas exhaust silencer and an air absorption silencer; the crankshaft is provided with the air cylinder; the elastic gasket is fixedly connected to the external surface of the valve plate assembly; the outer side of the end part of the air cylinder is provided with external screw threads; the inner side of the end part of the air cylinder is provided with a step hole; the screw threaded sleeve is provided with inner screw threads; after the valve plate gasket, the valve plate assembly and the elastic gasket are guided into the air cylinder step hole, the screw threaded sleeve is compacted externally and is fixedly connected with the air cylinder through the inner screw threads. Through the elastic compaction mechanism provided by the invention, not only can the seal property of the air cylinder and the valve plate assembly be ensured, but also the air cylinder deformation can be reduced effectively, thus the efficiency of the compressor is improved.

Description

technical field [0001] The invention relates to an internal connection structure of a refrigeration compressor, in particular to an elastic compression structure of a cylinder and a valve plate assembly for a refrigeration compressor. Background technique [0002] Refrigeration compressors generally adopt a cylinder and valve plate assembly structure to realize the function of sucking low-pressure gas and discharging high-pressure gas. Existing refrigeration compressors generally use such as figure 1 The structure shown includes crankcase 1, valve plate gasket 5, valve plate assembly 6, cylinder head gasket 7, cylinder head 8, screws 9, compression spring 10, suction muffler 11 and other components, crankcase 1 An exhaust muffler chamber 2 and a cylinder 3 are arranged on the top, and the end surface of the cylinder 3 is provided with a screw hole 4, and a screw 9 is screwed into the screw hole 4 to realize the connection and installation between the cylinder and the valve...

AI Technical Summary

Problems solved by technology

There are unavoidable defects in this assembly structure: since the number of screws 9 is limited, generally 3 to 4 are used. After the screws 9 and the cylinder 3 are tightened, the cylinder is prone to tightening deformation. According to the measurement, the deformation is between 2 and 4. 8μm, such deformation is enough to affect the performance of refrigeration compressors, especially high-efficiency compressors

Images