Measuring device and method for matching gap between fixed plate and moving plate of scroll compressor

Abstract

The invention provides a device and a method for measuring a fit clearance between a fixed disc and a movable disc of a scroll compressor, and relates to the field of automobile air conditioner electric compressors. The device comprises the scroll compressor, an air inlet is formed in one side of the scroll compressor; one side of the air inlet is connected with a high-pressure air source; a firstpressure sensor is connected between the air inlet and the high-pressure air source; a thrust disc is arranged on one side of the axis of the scroll compressor, a pneumatic cylinder is installed on the side, away from the thrust disc, of the scroll compressor, an air outlet is formed in one side of the scroll compressor, a second pressure sensor is connected to the air outlet, and an air flow sensor is connected to one side of the air outlet. When the axial thrust is not changed, the thrust disc is rotated to enable the movable disc to rotate, the gas flow under different rotating angle conditions is measured, and the radial fit clearance between the fixed disc and the movable disc is obtained. The thrust disc is fixed, the axial thrust is changed, the gas flow under different thrust conditions is measured, and the change of the fit clearance between the end faces of the fixed disc and the movable disc along with the axial thrust is obtained.

Description

Technical field[0001]The invention relates to the field of automobile air-conditioning electric compressors, in particular to a measuring device and a measuring method for the clearance between a fixed plate and a moving plate of a scroll compressor.Background technique[0002]The scroll compressor is a compressor with a compressible volume composed of a fixed involute scroll and an eccentric orbiting and translational involute scroll. Scroll compressors are formed by interlocking the moving and fixed scrolls with two dual function equations.[0003]In the working process of suction, compression and exhaust, the fixed plate is fixed on the frame, and the moving plate is driven by the eccentric shaft and controlled by the anti-rotation mechanism. The gas is sucked into the periphery of the fixed plate through the air filter element. As the eccentric shaft rotates, the gas is gradually compressed in several crescent-shaped compression chambers formed by the fitting of the movable fixed pl...

AI Technical Summary

Problems solved by technology

[0004] The air compression process of the scroll compressor depends on the mutual cooperation between the fixed plate and the moving plate. The processing precision of the fixed plate and the moving plate is high, and the matching gap is small, so as to ensure high compression efficiency of the scroll compressor, reliable and durable parts, and long service life. The traditional method of measuring the gap between the fixed plate and the moving plate of the scroll compressor relies on various surface measurement sensors, machine vision, computer technology and other means. The measurement technology is complex, slow, and inefficient, and cannot well meet the growing Industrial needs, a method for measuring the gap between the fixed plate and the moving plate of the scroll compressor of the present invention will solve the above problems well

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