Automobile fluid pump dynamic parameter time domain testing and analyzing method
A dynamic parameter, test and analysis technology, applied in pump testing, machine/engine, liquid variable capacity machinery, etc., can solve problems such as signal time domain mismatch, and achieve the effect of improving evaluation accuracy and enriching design.
Active Publication Date: 2020-11-13
CHONGQING BUILDING VEHICLE USE AIR CONDITIONER
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[0006] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a time-domain test and analysis method for the dynamic parameters of the automotive fluid pump, which uses a high-response fluid pump operating parameter sensor for real-time test and analysis, and mainly
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[0049] The present invention will be further described below in conjunction with the drawings, see figure 1 , figure 2 , Picture 9 , A time-domain test and analysis method for dynamic parameters of an automobile fluid pump. The fluid pump includes a rotor 1, a blade 2, a cylinder block 3, and a clutch armature 4 and a pulley 8 connected to the long shaft of the rotor. The pump has a compression chamber 5.
[0050] In order to accurately clarify the technical scheme of the present invention, the present invention selects the rotary vane type automobile air-conditioning compressor as the characteristic model of the time domain test method for the dynamic parameters of the automobile fluid pump;
[0051] The rotary structure of the rotary vane compressor is composed of a rotor 1, 5 blades 2, an elliptical cylinder block 3, front and rear end plates, a clutch armature 4 and a pulley 8 connected to the long shaft of the rotor.
[0052] Such as figure 2 , Figure 4 As shown, the rotatin...
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The invention discloses an automobile fluid pump dynamic parameter time domain testing and analyzing method. A fluid pump comprises a rotor, a blade, a cylinder block, a clutch armature connected witha rotor long shaft and a belt pulley; and a compressing cavity is formed in the pump. The automobile fluid pump dynamic parameter time domain testing and analyzing method comprises the following steps: S1, calibrating feature position information points of the fluid pump, wherein the feature position information points comprises an internal feature position information point and an external feature position information point; S2, collecting position signals: adopting a photoelectric sensor to carry out time domain triggering and conversion of a photoelectric signal, transmitting the dynamic parameter information of the fluid pump to a high-speed data acquisition instrument for real-time recording, by combing with recording of an external photoelectric time domain signal and synchronization of a dynamic parameter time domain signal, and precisely quantizing and recording the rotary performance of the fluid pump; and S3, carrying out dynamic parameter time domain analysis on the featureposition information points, in specific, S3 comprising S31 rotary performance analysis and S32 rapidly positioning and analyzing a failure part. The automobile fluid pump dynamic parameter time domain testing and analyzing method mainly solves the problem that when a rotator of the fluid pump operates and works, the time domains of an excitation response signal is not corresponding to that of astructural rotation position signal.
Description
technical field [0001] The invention relates to the technical field of automobile fluid pumps, in particular to a method for testing and analyzing dynamic parameters of automobile fluid pumps in time domain. Background technique [0002] Automotive fluid pump is a kind of fluid machinery suitable for automotive electrical appliances. It generally includes small rotary pump bodies such as automotive air-conditioning compressors, oil pumps, chilled water pumps, and air compressors. The main functions are fluid compression, fluid delivery, etc. Function. Automobile fluid pumps are installed in the high-temperature, strong-vibration road environment in the engine compartment of the automobile. They are often operated under multiple alternating loads, which may cause noise, vibration, and functional failure complaints of fluid pump components and the entire vehicle, and even cause follow-up components to be mechanically damaged. Damage, on this basis, product design verification...
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CPCF04B51/00
Inventor 胡立志曹昱坤李德江陶平安刘红梅袁东海陈彤刘伟
Owner CHONGQING BUILDING VEHICLE USE AIR CONDITIONER
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