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Cyclone compressor

A scroll compressor and compressor housing technology, applied in the field of scroll compressors, can solve the problems of shortened service life of the crankshaft, reduced efficiency of the scroll compressor, and wear of the supporting surface, so as to reduce friction and wear, reduce effect of noise

Inactive Publication Date: 2011-05-04
DANFOSS (TIANJIN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in traditional scroll compressors, such as the Chinese patent ZL02101652.6 of Mitsubishi Heavy Industries Co., Ltd. (the authorized announcement date is February 8, 2006), the lower end of the crankshaft is in direct frictional contact with the supporting surface of the lower support frame, thereby When the crankshaft rotates, the crankshaft is in direct frictional contact with the support surface, and after a long period of time, the lower end of the crankshaft and the support surface of the lower support frame are severely worn, which may cause the use of the crankshaft Reduced life, and lead to reduced efficiency of scroll compressors, increased noise, increased energy consumption

Method used

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Examples

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no. 1 example

[0034] The following will refer to image 3 , 4 The detailed structure of the friction-reducing member 101 for reducing the friction between the crankshaft 5 and the lower support frame 6 and reducing the wear between them according to the first embodiment of the present invention will be described.

[0035] The upper end 50 of the crankshaft 5 is connected to the movable scroll member 2 for driving the movable scroll member 2 to rotate. The lower end 51 of the crankshaft 5 is supported by a lower support frame 6 fixed into the compressor housing.

[0036] As mentioned above, in a traditional scroll compressor, the lower end surface of the crankshaft 5 is directly supported on the upper surface of the lower support frame 6, and the lower end surface of the lower end 51 of the crankshaft 5 is in direct frictional contact with the lower support frame 6, and the frictional force is relatively Increased, severe wear, increased energy consumption and noise.

[0037] In the scrol...

no. 2 example

[0048] Such as Figure 5 As shown in , the friction reducing member 101 includes a support boss 72 and a circumferential groove 73 formed on the top surface of the support boss 72, the circumferential groove 73 is used to accommodate lubricant and / or lubricating oil to form a sliding bearing. The support boss 72 is positioned on the support surface 64 of the lower support frame 6. In order to increase the wear resistance, the top surface of the support boss 72 can be provided with a wear-resistant layer on the top surface of the support boss 72, such as wear-resistant treatment, such as Quenching, or carburizing the top surface of the support boss 72 forms a wear-resistant layer. The supporting boss 72 can be integrally formed on the supporting surface 64 of the lower supporting frame 6 , can also be welded on the supporting surface 64 of the lower supporting frame 6 , or be detachably installed on the supporting surface 64 of the lower supporting frame 6 with bolts. Thus, th...

no. 3 example

[0053] Refer below Image 6 The friction reducing member 101 of the scroll compressor 100 according to the third embodiment of the present invention will now be described.

[0054] Such as Image 6 As shown in , the friction reducing member 101 includes a support boss 72 and a radial groove 173 formed on the top surface of the support boss 72, the radial groove 173 is used to accommodate lubricant and / or lubricating oil to form a sliding bearing. The support boss 72 is located on the support surface 64 of the lower support frame 6 . Similar to the second embodiment, the supporting boss 72 can be integrally formed on the supporting surface 64 of the lower supporting frame 6 , can also be welded on the supporting surface 64 of the lower supporting frame 6 , or be detachably installed on the lower supporting frame 6 with bolts on the support surface 64. Thus, the friction contact area between the crankshaft 5 and the support surface 64 of the lower support frame 6 can be reduc...

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PUM

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Abstract

The invention provides a scroll compressor, which comprises a compressor shell; a bracket arranged in the compressor shell; a still vortex component fixed in the compressor shell; a moving vortex component rotatably supported on the bracket and jointed with the still vortex component; an actuating component with an upper end connected with the moving vortex component to drive the moving vortex component to rotate; and a lower support fixed to the compressor shell; a friction reducing component for reducing the abrasion between the actuating component and the lower support arranged between the actuating component and the lower support, wherein the friction reducing component comprises grooves formed on a supporting face of the lower support and / or on a lower surface of the actuating component. Therefore, by using the friction reducing component, the friction condition between the actuating component and the lower support can be improved, and the friction and abrasion between the actuating component and the lower support is reduced, the energy consumption and noise of the scroll compressor is reduced too, and the running is stabler.

Description

technical field [0001] The present invention relates to a scroll compressor, in particular to a scroll compressor with an improved crankshaft support structure. Background technique [0002] With the development of refrigeration and air-conditioning technology, it is necessary to improve the compression efficiency and work reliability of the compressor. Therefore, the development of energy-saving compressors has become one of the main directions for the development of refrigeration technology. [0003] The principle of scroll compressor refrigeration is to rotate the movable scroll around the center of the base circle of the fixed scroll, and gradually reduce the volume of the compression chamber formed by the engagement of the movable scroll and the fixed scroll , so as to achieve the purpose of compressing gas. Wherein the movable scroll part is directly supported on the bracket fixed in the compressor casing. In addition, one end (upper end) of the crankshaft used to d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C18/02
Inventor 沈宇红蒋伟
Owner DANFOSS (TIANJIN) CO LTD