Wear prevention device for vortex type compressor

Abstract

The invention belongs to compressor field, relates to a abrasion preventing device of scroll compressor, which comprises: a fixing scroll disk, a rotating scroll disk geared with the fixing scroll disk capable of moving continuously and forming multiple compressing chamber, a frame with a through shaft hole on the central part for supporting the rotating scroll disk, a driving shaft inserted on the shaft hole of the frame and connected to the rotor of the motor capable of transferring rotating force to the rotary scroll disk, and a roller shaft liner inserted between the shaft hole of the frame and the smooth surface of the driving shaft, capable of forming two bearing surfaces on the outer round and inner round surface. The invention can prevent the abrasion between the driving shaft and the frame shaft hole of scroll compressor.

Description

technical field [0001] The invention belongs to the field of compressors and relates to a wear-preventing device for a scroll compressor, in particular to the prevention of a scroll-type compressor with a roller bushing capable of rotating between a main frame or an auxiliary frame and a drive shaft. wear device. Background technique [0002] Generally speaking, the scroll compressor is widely used in the field of air conditioners. As a high-efficiency and low-noise compressor, its operation method is to make the two scrolls rotate relative to each other, and through this, the scroll scroll Many compression chambers between the rolls are formed in pairs, and the compression chambers move toward the center quickly, and at the same time, the volume becomes smaller, so that the refrigerant gas is continuously inhaled, compressed and discharged. [0003] figure 1 It is a partial longitudinal sectional view of a conventional scroll compressor. [0004] As shown in the figure, ...

AI Technical Summary

Problems solved by technology

[0011] However, in the above-mentioned conventional scroll compressor, when the drive shaft (4) rotates, wear may occur between the main frame (2) or the sub-frame (not shown) supported along its radial direction, As shown in Figures 2 and 3, a frame bushing (9) made of wear-resistant material is inserted at a certain distance (t1) from the drive shaft (4) on the inner peripheral surface of the shaft hole (2a) of the main frame (2). ), the main frame (2) made of soft material and the drive shaft (4) can be in smooth contact, so that although the resulting wear is prevented, this will eventually cause the frame bushing (9) and New wear elements between drive shafts (4)

Images