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Orbiting scroll and scroll compressor

A scroll compressor and moving scroll technology, applied in the field of compressors, can solve problems such as collision and friction, and achieve the effects of reducing friction, occupying less space, and eliminating processing and material extrusion processes.

Active Publication Date: 2019-03-19
ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of the axial sliding of the radial bearing and the collision and friction with other components during the axial movement of the eccentric sleeve in the prior art, the present invention provides a movable scroll and a scroll compressor

Method used

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  • Orbiting scroll and scroll compressor
  • Orbiting scroll and scroll compressor
  • Orbiting scroll and scroll compressor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Such as Figures 1 to 3 As shown, the present invention provides a movable scroll 3,

[0043] The back of the movable scroll 3 is provided with an annular bearing protrusion coaxial therewith, and the inner cavity of the bearing protrusion constitutes a bearing hole;

[0044] The outer end surface of the bearing protrusion is provided with a limiting member 15; the outer end surface of the limiting member 15 is provided with a wear-resistant member.

[0045] The limit piece 15 arranged on the outer end surface of the bearing protrusion can axially limit the radial bearing 17 when the bearing protrusion is thermally deformed or subjected to uneven force, and the complicated processing and material extrusion process are omitted The wear-resistant parts arranged on the outer end surface of the limiter 15 can effectively avoid the direct collision with the bearing protrusion when the eccentric sleeve 13 moves up, greatly reducing the friction between the eccentric sleeve 1...

Embodiment 2

[0052] Such as Figure 4 with Figure 5 As shown, the difference between this embodiment and Embodiment 1 is that the limiting member 15 is fixedly connected to the bearing hole through interference fit; specifically:

[0053] One end of the limiter 15 is provided with an annular first protrusion whose outer diameter is equal to the outer diameter of the limiter 15 and whose inner diameter is smaller than the inner diameter of the limiter 15. The outer end surface of the bearing protrusion is provided with an inner diameter equal to The inner diameter and outer diameter of the bearing hole are smaller than the outer diameter of the bearing hole, and the ring-shaped second protrusion has an interference fit between the inner wall surface of the first protrusion and the outer wall surface of the second protrusion to realize the position limiting Part 15 is fixedly connected with the outer end surface of the bearing protrusion;

[0054] The height of the first protrusion is les...

Embodiment 3

[0056] Such as Image 6 with Figure 7 As shown, the difference between this embodiment and Embodiment 1 is that the limiting member 15 is fixedly connected to the bearing hole through interference fit; specifically:

[0057] Further, one end of the limiting member 15 is provided with an annular third protrusion whose inner diameter is equal to the inner diameter of the limiting member 15 and whose outer diameter is smaller than the outer diameter of the limiting member 15, and the outer end surface of the bearing protrusion is provided with There is an annular fourth protrusion whose outer diameter is equal to the outer diameter of the bearing hole and whose inner diameter is smaller than the inner diameter of the bearing hole. The outer wall surface of the third protrusion and the inner wall surface of the fourth protrusion are interference fit to realize the The fixed connection between the limiting member 15 and the outer end surface of the bearing protrusion;

[0058] T...

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Abstract

The invention relates to an orbiting scroll and a scroll compressor. The orbiting scroll is characterized in that an annular bearing protrusion coaxial with the orbiting scroll is arranged on the backsurface of the orbiting scroll, and a bearing hole is formed in an inner cavity of the bearing protrusion; and limiting pieces are arranged on the outer end surface of the bearing protrusion, and wear-resistant pieces are arranged on the outer end surfaces of the limiting pieces. A centripetal bearing is limited in the axial direction by the limiting pieces the when the bearing hole is thermallydeformed or subjected to uneven stress, and complicated processing and material extrusion processes are omitted; direct collision between an eccentric sleeve and the bearing protrusion can be effectively prevented by the wear-resistant pieces during upward channeling of the eccentric sleeve , friction between the eccentric sleeve and other parts is greatly reduced, so that the damage of the partscaused by collision and friction is reduced, and the efficiency of the compressor is improved.

Description

technical field [0001] The invention relates to the technical field of compressors, in particular to a movable scroll and a scroll compressor. Background technique [0002] Scroll compressor is a type of compressor with a wide range of applications and relatively mature technology. It mainly relies on the reciprocating increase and decrease of the volume of the moon-shaped cavity between the orbiting scroll and the fixed scroll to realize the compression of the working fluid. There is a bearing hole on the back of the moving scroll. The bearing hole fixes the outer ring of the radial bearing. The inner ring of the bearing is interference-fitted with the eccentric sleeve for balancing the weight. The inner hole of the eccentric sleeve is inserted into the eccentric part of the crankshaft. When the crankshaft rotates, The eccentric portion drives the movable scroll through the eccentric sleeve. [0003] The outer ring of the radial bearing needs to be fixed in the bearing hol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C18/02F04C23/02F04C29/00F16C9/02
CPCF04C18/0253F04C23/02F16C9/02
Inventor 魏会军李雪峰刘韵康小丽陈肖汕
Owner ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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