Mechanism for regulating elasticity lining of frequency-changing cyclone compressor

Abstract

The present invention provides an elastic bush adjusting mechanism of inverter scroll compressor to ensure radial sealing force of dynamic static vortex teeth when the inverter scroll compressor running in low frequency to enlarge the frequency range of inverter scroll compressor, decrease libration and noise of climb-down and reset after climb-down, improve stability of radial joggle of dynamic and static vortex teeth, reduce machining and assembling precision of main parts such as crank pin, dynamic and static vortex disk of inverter scroll compressor, prolong service life of dynamic and static vortex disk, sliding bearing of dynamic vortex disk. The elastic bush 4 is mounted on a crank pin 6 connected with the principal axis 5, a sliding bearing 2 is mounted on the elastic bush 4, a dynamic vortex disk 1 is mounted on the sliding bearing 2, an arc spring 3 is mounted between inner surface of sliding bearing 2 and side plane of crank pin 6, the convexity of arc is towards axes line O2 of the crank pin 6.

Description

technical field [0001] The invention relates to a fluid variable displacement machine, in particular to a mechanism for improving the radial meshing stability of arc-shaped scroll teeth. Background technique [0002] At present, the eccentric bushing used in the adjustment mechanism of the radial meshing stability of the dynamic and static scrolls of the variable frequency scroll compressor is to realize the adjustment of the radial meshing performance of the dynamic and static scrolls through the eccentric bushes installed on the cylindrical crank pin. . When the centrifugal inertial force of the moving scroll increases, the eccentric bush rotates, reflecting the motion on the scroll tooth surface, and the moving and static scroll teeth are close; when the meshing point appears due to local processing deviation or liquid accumulation, solid particles When the resulting rebound force increases sharply, the eccentric bush rotates again under the combined action of various fo...

AI Technical Summary

Problems solved by technology

When the variable frequency scroll compressor operates at low frequency, due to the decrease of the centrifugal inertial force, the radial sealing force between the movable and static scroll teeth cannot be guaranteed, resulting in a large leakage

[0004] (2) After the crank pin, the inner and outer surfaces of the eccentric bushing, and the movable and static scroll teeth are worn, the retreat movement of the movable scroll and the return movement after retreat will cause increased vibration and noise, and the meshing state will further deteriorate

[0005] (3) Due to the above shortcomings, the operating frequency range of the eccentric bushing adjustment mechanism is narrow, the vibration and noise are large, and the overall reliability is poor, which limits the advantages of the frequency conversion scroll compressor.

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