Oil pump noise test device and test method

A technology of testing equipment and testing methods, used in pump testing, mechanical equipment, liquid variable capacity machinery, etc.
CN106401937AActive Publication Date: 2017-02-15UNITED AUTOMOTIVE ELECTRONICS SYST
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
UNITED AUTOMOTIVE ELECTRONICS SYST
Publication Date
2017-02-15

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Abstract

The invention discloses an oil pump noise test device. The device comprises a base supporting frame, a base supporting air cylinder and a vibration sensor unit; the upper end of an oil pump to be tested is hung and fixed, the base supporting frame vertically moves along with the telescopic motion of an ejector rod of the base supporting air cylinder, and when the base supporting frame moves to the upper end, the oil pump to be tested is supported; when the base supporting frame moves to the lower end, the oil pump to be tested is separated from the base supporting frame and is in the midair-suspending state; and the vibration sensor unit can be mounted on and fixed to a shell of the oil pump to be tested in a combined manner, and the vibration sensor unit is used for detecting output vibration signals. The invention further discloses an oil pump noise test method. According to the oil pump noise test device and test method, the actual level of the noise of the oil pump to be tested can be accurately reflected.
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Description

technical field

[0001] The invention relates to vehicle performance testing technology, in particular to an oil pump noise testing device and testing method. Background technique

[0002] In recent years, the performance requirements of the oil pump in the vehicle have been gradually increased by the OEMs. The noise performance during the working process of the oil pump, as a key indicator of the performance of the vehicle, has been paid more and more attention by the OEMs. The index test related to noise has always been a difficult problem in the automobile manufacturing industry. The traditional test method is to judge the noise level of the oil pump by human ears when the locomotive is idling after the oil pump is installed on the vehicle. This method not only cannot accurately reflect the actual level of the noise of the oil pump, but even if the oil pump is found to have noise problems, the product has already been loaded, and it is more complicated to replace it. Co...

Claims

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