Method for judging if abnormal noise is caused in rotary vane compressors

Abstract

The invention discloses a method for judging if abnormal noise is caused in rotary vane compressors. The method for judging if the abnormal noise is caused in the rotary vane compressors includes: S1,collecting information of an abnormal sound site, and recording noise frequency of the compressors which send out abnormal noise and noise frequency of the compressors which do not send out the abnormal noise; and S2, performing abnormal noise reappearing test which includes the steps: S2.1, preparing needed equipment, instruments and samples for the test; S2.2: respectively performing the abnormal noise reappearing test on the compressors which send out the abnormal noise and the compressors which do not send out the abnormal noise, setting test conditions according to the collected information of the abnormal sound site, collecting test noise through a microphone sensor, and analyzing the test noise through a noise analysis meter; S2.3, analyzing the recorded noise frequency of the compressors which send out the abnormal noise and the recorded noise frequency of the compressors which do not send out the abnormal noise; and S2.4, confirming abnormal noise problem scope according to analysis results of the step S2.2 and the step S2.3, and confirming criterion scope of the compressors which send out the abnormal noise.

Description

technical field [0001] The invention relates to the technical field of compressors, in particular to a method for judging whether a rotary vane compressor causes abnormal noise. Background technique [0002] The configuration of the rotary vane compressor is to form a closed cavity for compressing the refrigerant of the automobile air conditioner through the five-blade rotor, the elliptical cylinder line and the front and rear end plates. The compression is driven by the external drive pulley at a certain rotational speed. Auto parts products that perform periodic compression work on the rotating shaft of the machine. [0003] The abnormal sound caused by the vibration pattern on the inner surface of the compressor cylinder is caused by the uneven processing lines formed by the mechanical finishing process on the inner surface of the cylinder. Usually, when the parts are processed, the machining tool acts on the cylinder wall The quality of machining deformation causes devi...

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Problems solved by technology

[0005] 1) The form of the vibration pattern of the rotary vane compressor cylinder presents an irregular curve, the texture is uneven, and the abnormal noise phenomenon is all at the customer's site. It is obtained from the customer's subjective hearing and complaint feedback. It is difficult to judge the abnormal noise before the product is shipped. Big

[0006] 2) There is currently no ready-made abnormal sound inspection basis and standard for this problem in the product failure mode

After reviewing the data, the current domestic patents on the determination method of this kind of abnormal sound involving rotary vane automotive compressors are blank

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