Piston assembly and compressor

Abstract

The invention provides a piston assembly and a compressor. The piston assembly comprises a piston, an elastic pin and a piston pin, wherein a piston pin hole is formed in the piston; the elastic pin comprises a body, and elastic structures are arranged at the end parts of the body; a through elastic pin hole is formed in the side wall of the piston pin, and the length of the elastic pin is greaterthan the maximum length of the elastic pin hole; and the elastic pin is installed in the elastic pin hole, the piston pin with the elastic pin is installed in the piston pin hole, and when the pistonpin reaches a preset position, the elastic pin is bent, and the elastic structures are positioned between the piston pin and the piston. According to the technical scheme, the whole assembly is simple, the operation is easy to implement, and the piston pin is pressed into the piston pin hole at one time, so that the elastic pin is pressed and deformed, then the piston pin and the piston are fixed, the problem about alignment of the elastic pin hole and the piston pin hole in the related technology is avoided, meanwhile, the configuration of special equipment for pressing the elastic pin is avoided, the production efficiency is improved, and the manufacturing cost is saved.

Description

technical field [0001] The invention relates to the technical field of compressors, in particular to a piston assembly and a compressor. Background technique [0002] At present, during the assembly process of the compressor, the assembly of the piston, piston pin, connecting rod and elastic pin is manually assembled. The main difficulties in this link are: 1) The matching precision between the piston pin and the piston pin hole is high, so the piston pin When inserting the piston pin hole on the piston, it is necessary to ensure that the piston pin hole and the small hole of the connecting rod are aligned accurately, so as to ensure the smooth insertion of the piston pin. However, the small hole of the connecting rod is located in the inner cavity of the piston, so it blocks the line of sight of alignment, the operation is troublesome, and the operation space is very small. 2) After the insertion is completed, in order to ensure that the elastic pin hole on the piston and ...

AI Technical Summary

Problems solved by technology

2) After the insertion is completed, in order to ensure that the elastic pin hole on the piston and the elastic pin hole on the piston pin are completely aligned, manual alignment is required, but since the elastic pin hole on the piston pin has sunk into the piston pin hole, the alignment The operation is troublesome. If the position of the elastic pin hole on the piston pin is too deep, the piston pin must be pulled out and reinstalled. Therefore, there are two alignments in the compressor piston assembly, and when the two alignments are performed, the As far as the assembly personnel are concerned, they are all working under the blocked line of sight, which requires the operator to operate with the touch and experience, which has the problems of low production efficiency, high cost, and difficulty in realizing assembly automation

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