Cross coupling and scroll compressor

Abstract

The invention discloses a cross coupling and a scroll compressor. The cross coupling is of a circular ring structure, and an upper thrust surface and a lower thrust surface of the cross coupling are parallel to each other; the upper thrust surface and the lower thrust surface are correspondingly provided with weight removal grooves; the scroll compressor comprises the cross coupling, a static scroll plate, a movable scroll plate, a support, a bearing, a crankshaft and a middle shell; the static scroll plate is fixed on the support in the middle shell; the movable scroll plate is matched with the static scroll plate through a cross slide ring, and the movable scroll plate is matched with a thrust surface of the support to slide; and the crankshaft penetrates through the bearing installed inthe support to be matched with the movable scroll plate, and the circumferential rotation of the crankshaft enables the movable scroll plate to do planar circular motion through the action of the cross slide ring. The cross coupling does not generate torsion deformation, inclined vibration can not occur between the thrust surface of the movable scroll plate and the thrust surface of the static scroll plate, and the working area of a guide sliding chute is increased.

Description

Technical field [0001] The invention belongs to the field of scroll machinery. In particular, the invention relates to an Oldham coupling used in a scroll machine and a scroll compressor with the Oldham coupling. Background technique [0002] Scroll machinery can be made into scroll expander, scroll compressor, scroll engine, scroll pump, etc. Among them, the scroll compressor can also be said to be a positive displacement compressor, which is more and more commonly used in refrigeration, air conditioning and aerodynamic applications. [0003] Generally, the scroll compressor is mainly composed of a movable scroll, a fixed scroll, an Oldham coupling, a bracket, a crankshaft, a motor, and a sealed casing. The scroll device in the scroll compressor includes two scrolls with similar shapes, and each scroll is mounted on a separate end plate to define a scroll. The two scroll pieces are matched with each other, and the movable scroll is eccentric relative to the fixed scroll and rota...

AI Technical Summary

Problems solved by technology

[0007] The Oldham coupling of the present invention solves the problems existing in the existing Oldham coupling that easily cause vibration and noise during the operation of the scroll compressor, and greatly enhances the service life of the Oldham coupling

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