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Scroll compressor cross ring manufacturing method

A technology of a scroll compressor and a manufacturing method, which is applied in the field of compressors, can solve problems such as high manufacturing cost, low production efficiency, and low pass rate, and achieve improved pass rate, production efficiency, wear resistance and strength Effect

Active Publication Date: 2020-07-24
浙江百达精工股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In a nutshell, the current manufacturing method of cross rings has the disadvantages of low pass rate, low production efficiency and high manufacturing cost.

Method used

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  • Scroll compressor cross ring manufacturing method
  • Scroll compressor cross ring manufacturing method
  • Scroll compressor cross ring manufacturing method

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Embodiment Construction

[0022] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0023] Such as figure 1 and figure 2 As shown, the cross ring blank 1 is in the shape of a ring, and the cross ring blank 1 includes a ring portion 1a and four key bodies 1b, and the four key bodies 1b are evenly distributed circumferentially around the axis line of the ring portion 1a; Two key bodies 1b face upward, and the other two key bodies 1b face downward, and two upward key bodies 1b and two downward key bodies 1b are alternately arranged; most of the key bodies 1b are located outside the ring portion 1a, The key body 1b is not only directly connected to the upper surface of the annular portion 1a, but also connected to the outer surface of the annular portion 1a through the key root portion 1c.

[0024] The man...

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Abstract

The invention provides a method for manufacturing a cross ring of a scroll compressor, and belongs to the technical field of compressors. The method solves the problems that in the case of an existingcross ring manufacturing method, the yield is low, the production efficiency is low and the manufacturing cost is high. The method for manufacturing the cross ring of the scroll compressor is performed according to the following sequential steps of firstly, cutting a round tube into a circular ring-shaped blank according to the required height; secondly, heating the blank, moreover, putting the blank into a pre-forming die for extrusion molding, then obtaining a rough blank, and forming four pre-forming portions corresponding to protruding keys in the cross ring in position on the outer sidesurface of the rough blank; and thirdly, heating the rough blank, moreover, putting the rough blank into a fine forming die for extrusion forming, and then obtaining a fine blank. According to the method for manufacturing the cross ring of the scroll compressor, the cross ring blank is formed by adopting hot extrusion, so that the wear resistance and strength of the cross ring are improved, the cross ring blank formed by hot extrusion does not generate air holes, and then the percent of pass of the cross ring blank is improved.

Description

technical field [0001] The invention belongs to the technical field of compressors, and relates to an Oldham ring of a scroll compressor, in particular to a method for manufacturing the Oldham ring of a scroll compressor. Background technique [0002] The scroll compressor is a compressor with a compressible volume composed of a fixed involute scroll and an eccentric orbiting and translational involute moving scroll. The scroll compressor is made of two double-function equation-shaped moving and static scrolls meshing with each other. There are many relevant documents about scroll compressors, such as scroll compressors (publication number CN1515798A). [0003] The energy efficiency ratio of the scroll compressor is already 3.4, and can even reach 3.6-3.7. The scroll compressor has the characteristics of energy saving. With the development of society, the demand for scroll compressors continues to grow. [0004] The Oldham ring is a key part of the scroll compressor, and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D53/84B21D22/02B21D37/10B21D37/16F04C29/00F04C18/02
CPCB21D22/022B21D37/10B21D37/16B21D53/84F04C18/0215F04C29/00F04C2230/24
Inventor 阮吉林张启斌
Owner 浙江百达精工股份有限公司
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