Miniature oil-free lubrication scroll compressor

Abstract

An air inlet hole is formed in a lower end cover, a power device is installed in a machine shell, a step arranged in the machine shell is fixedly connected with a supporting frame located above the power device, the upper end face of the supporting frame is provided with a static scroll plate through a pin, and the top of the static scroll plate abuts against the lower end face of the upper end cover. A movable scroll plate matched with the static scroll plate is arranged in the supporting frame, and the output end of the power device penetrates through the supporting frame to be eccentrically and movably connected with the movable scroll plate. The miniature oil-free lubrication scroll compressor is simple in structure and convenient to machine, paired kinematic pair parts are subjected to corresponding surface treatment, so that the parts move under the oil-free lubrication condition, a low friction coefficient can be kept, a small amount of heat is generated, meanwhile, the mechanical efficiency of the compressor is slightly influenced, and the service life of the compressor is prolonged. And the blank in the field of domestic miniature oil-free scroll compressors is filled.

Description

technical field [0001] The present patent application relates to the technical field of scroll compressors, in particular to a miniature oil-free scroll compressor. Background technique [0002] At present, compressors for air transportation used in food, medicine and other fields must meet the following conditions: the compressor is small in size, light in weight, large in displacement, and the gas transported does not contain lubricating oil. At present, most compressors require lubricating oil in the compression chamber, so that there is a trace amount of lubricating oil in the conveyed gas. [0003] The oil-lubricated scroll compressors in the prior art have the following disadvantages: 1) the compressed gas must be in contact with lubricating oil, and the transported compressed gas must contain lubricating oil; 2) the auxiliary machine in the compression system is increased, If an oil-air separator is added, the system will be huge; 3) The lubricating oil contained in ...

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Problems solved by technology

[0003] The oil-lubricated scroll compressors in the prior art have the following disadvantages: 1) the compressed gas must be in contact with lubricating oil, and the compressed gas to be transported must contain lubricating oil; 2) increase the auxiliary machine in the compression system, If an oil-gas separator is added, the system will be huge; 3) The lubricating oil contained in the compressed gas condenses on other equipment in the compression system, affecting its normal operation; 4) The quality of the scroll compressor with oil lubrication is heavier, considering Oil passage layout, more complicated structure

5) Most compressors on the market have sealing grooves on the end surface of the scroll profile of the dynamic and static scroll, which are used to install sealing strips and reduce the end surface wear and end surface leakage of the dynamic and static scroll. This structure makes the profile thickness unable to be made thinner. Scroll compressor miniaturization is difficult to achieve

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