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Rotation preventing member and scroll compressor

A scroll compressor, anti-rotation technology, used in rotary piston machinery, rotary piston pumps, mechanical equipment, etc., can solve problems such as abnormal wear and adhesion

Inactive Publication Date: 2013-06-05
DAIKIN IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, when the scroll compressor is in this state, if the surface coating of the movable scroll disappears completely, when the scroll compressor is started, it is easy to damage the key portion of the anti-rotation member and the wall forming the above-mentioned key groove. Adhesion or abnormal wear between

Method used

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  • Rotation preventing member and scroll compressor
  • Rotation preventing member and scroll compressor
  • Rotation preventing member and scroll compressor

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0096] The low-pressure dome-type scroll compressor 1 of the first embodiment of the present invention constitutes a refrigerant circuit together with an evaporator, a condenser, an expansion mechanism, etc., and plays a role of compressing the gas refrigerant in the refrigerant circuit, as shown in figure 1 As shown, this low-pressure dome-type scroll compressor 1 is mainly composed of a vertically long cylindrical sealed dome-shaped casing 10, a scroll-type compression pump unit 15, a drive motor 16, a lower main bearing 60, a suction pipe 19 and The discharge pipe 20 constitutes. In addition, the low-pressure dome-type scroll compressor 1 is a vertical compressor, and the scroll compressor pump unit 15 is provided above the drive motor 16 . The components of the low pressure dome scroll compressor 1 will be described in detail below.

[0097] [Details of Components of Low Pressure Dome Scroll Compressor]

[0098] (1) Housing

[0099] The casing 10 is mainly composed of t...

no. 2 Embodiment approach

[0150]The low-pressure dome-type scroll compressor 1 according to the second embodiment of the present invention is the same as the low-pressure dome-type scroll compressor 1 according to the first embodiment except for the Oldham ring and the operation at startup. Therefore, only the operation of the Oldham ring 339 and startup will be described here.

[0151] Such as Figures 14 to 18 As shown, the Oldham ring 339 of the second embodiment is mainly composed of a main body 39c, a movable scroll side key portion 339a, and a housing side key portion 39b. In addition, in this description, the part which attached|subjected the same code|symbol as the part concerning 1st Embodiment shows the part similar to the part concerning 1st Embodiment. Such as Figure 15 with Figure 16 As shown, the main body 39c is a generally annular shaped body. The movable scroll side key portion 339a is a pair of protrusions that face across the axis L1 of the main body 39c and extend on one side ...

no. 3 Embodiment approach

[0167] Except for the movable scroll, the low-pressure dome-type scroll compressor 101 according to the third embodiment of the present invention is the same as the low-pressure dome-type scroll compressor 1 according to the first embodiment. Therefore, only the movable scroll 126 will be described here. In addition, in this embodiment, as the Oldhams ring, a conventional Oldhams ring may be used, the Oldhams ring 39 of the first embodiment may be used, or the Oldhams rings 139 and 239 of modified examples of the first embodiment may be used. The Oldham ring 339 of the second embodiment may also be used.

[0168] Such as Figure 19 with 20 As shown, the movable scroll 126 of the third embodiment is mainly composed of the following parts: an end plate 126a; a scroll-shaped (involute-shaped) overlapping portion 26b formed on the upper surface side of the end plate 126a; and The bearing portion 26c is formed on the lower surface side of the end plate 126a. In addition, in thi...

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Abstract

The life of a surface film applied to the wall of a key groove formed in a movable scroll is made longer than conventional. The rotation preventing member (339) comprises an annular body (39c), a pair of first key parts (339a), and a pair of second key parts (39b). The first key parts are opposed to each other on both sides of the axis (L1) of the body, and only one sides of the first key parts extend along the axial direction of the body. The first key parts comprise a pair of first surfaces (P2) including the axial direction and the radial direction of the body. The second key parts are opposed to each other on both sides of a virtual surface (VP2) parallel to the first surfaces and including the axis, and the same side as the first key parts or the opposite side to the first key parts extends along the axial direction. The second key parts comprise a pair of third surfaces (P4) perpendicular to the first surfaces and including the axial direction. A recess (HL1) formed in the terminal surface (P31) on the side where the key part extends is provided in at least each of the first key parts of the first key parts and the second key parts.

Description

technical field [0001] The present invention relates to a scroll compressor and an anti-rotation member for preventing autorotation of a movable scroll member. Background technique [0002] Generally, in order to ensure the slidability of the sliding member of the scroll compressor, surface coating forming treatment such as Luberite treatment (Luberite treatment) is performed on the sliding member (for example, refer to Patent Document 1). [0003] Patent Document 1: Japanese Patent Application Laid-Open No. 58-57002 [0004] However, there are cases where a scroll compressor is mounted on a refrigeration device for a refrigerated container or a refrigerated container. Usually, such a scroll compressor is often installed vertically during storage or transportation in a container, that is, the crankshaft is in the vertical direction and the movable scroll is disposed on the motor. In this case, when the refrigerated container or the refrigerated container is not used for a ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C18/02
CPCF01C17/066F04C18/0215
Inventor 中岛英行
Owner DAIKIN IND LTD
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