Flange, pump body assembly, rotary compressor and air conditioner

Abstract

The invention provides a flange, a pump body assembly, a rotary compressor and an air conditioner. The flange comprises a flange body, a bearing hole used for inserting a crankshaft is formed in the flange body, a vibration reduction ring groove is formed in the hole opening wall of the side, close to an eccentric part of the crankshaft, of the bearing hole, and a spiral oil guide groove is formed in the hole wall of the bearing hole; and the spiral oil guide groove comprises a first groove section located on a first hole section and a second groove section located on a second hole section, and the maximum groove width of the second groove section and the maximum groove depth of the first groove section are smaller than the minimum groove depth of the second groove section. According to the flange, the spiral oil guide groove on the first hole section, namely the first groove section, is designed into the shallow groove structure, so that the outer ring groove wall of the vibration reduction ring groove can be closer to the bearing hole, the sealing distance of the end part of the flange body and the matching position of a roller is increased, and the volume efficiency of a pump body structure is improved; and meanwhile, the phenomenon of opening collapse caused by too small wall thickness of the wall body between the vibration reduction ring groove and the bearing hole can be prevented.

Description

technical field [0001] The invention belongs to the technical field of compressor manufacturing, and in particular relates to a flange, a pump body assembly, a rotary compressor and an air conditioner. Background technique [0002] With the improvement of people's living standards, people have higher and higher requirements for environmental comfort, and air conditioners have almost become a must-have for every household. The rotary compressor is widely used in the field of household air conditioners due to its low production cost and low price. With the improvement of people's awareness of environmental protection and the support of national policies, more efficient rotary compressors have become the common choice of major air-conditioning manufacturers, and major compressor manufacturers are also committed to developing more efficient rotary compressors. machine. [0003] At present, the main development direction of rotary compressors is high efficiency and cost reducti...

AI Technical Summary

Problems solved by technology

[0005] Therefore, the present invention provides a flange, a pump body assembly, a rotary compressor and an air conditioner to overcome the limitation of the prior art in order to prevent the minimum sealing distance between the flange damping ring groove and the outer diameter of the roller from being too small. The wall body at the corresponding position of the damping ring groove and the spiral oil guide groove is too thin and the chipping is insufficient

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