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Automotive transmission noise test bench

A technology for automotive transmission and noise testing, which is applied in vehicle testing, machine/structural component testing, instruments, etc., and can solve the problems of insufficient versatility of transmission brackets and sensor brackets

Inactive Publication Date: 2019-04-16
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the problem of insufficient versatility of the transmission bracket and the sensor bracket in the prior art, and to provide a vehicle transmission noise test bench

Method used

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  • Automotive transmission noise test bench
  • Automotive transmission noise test bench
  • Automotive transmission noise test bench

Examples

Experimental program
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Effect test

Embodiment Construction

[0028] The present invention is described in detail below in conjunction with accompanying drawing:

[0029]The automobile transmission noise test bench of the present invention mainly includes a transmission bracket 8 , a sensor bracket device, a sensor group, a sound-absorbing part, a drive motor 1 and a load motor 19 .

[0030] refer to image 3 and Figure 4 , the transmission bracket 8 includes 4 vibration-isolating blocks 8-1 with the same structure, the base 8-2, the input end fixing plate 8-3 that fixes and supports the input end casing of the transmission under test 9, and supports the measured transmission The output end fixing ring 8-6 and the output end fixing bracket 8-8 of the transmission 9 output end housing.

[0031] The base 8-2 is a rectangular flat structural member, in the middle of one end of the base 8-2 and along the longitudinal direction of the base 8-2, there are two "convex" characters parallel to each other with a "convex" cross section. Type gr...

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PUM

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Abstract

The invention discloses an automobile speed changer noise test stand. In the prior art, versatility of a speed changer support and a sensor support is not enough. By using the test stand of the invention, the above problem is overcome. The test stand comprises the speed changer support, a sensor support device, a sensor group, a sound absorption portion, a driving motor and a load motor. The driving motor is installed on a right side of the test stand. The load motor is installed on a left side of the test stand. The speed changer support is installed on the test stand between the driving motor and the load motor. The tested speed changer is horizontally installed on the speed changer support. The driving motor is connected to a right end of an input shaft of the tested speed changer. A left end of an output shaft of the tested speed changer is connected to a right end of the load motor. A semi-anechoic room in the sound absorption portion is buckled on the test stand around the speed changer support. A sound absorption cover in the sound absorption portion sleeves an input shaft and an output shaft in the semi-anechoic room. The sensor group is installed around the tested speed changer, on a same side of the input shaft and the output shaft, and on the input shaft and the output shaft through the sensor support device.

Description

technical field [0001] The invention relates to a test bench in the field of auto parts experiment, in particular, the invention relates to a noise test bench of an automobile transmission. Background technique [0002] Automobile transmission is an important part of automobile transmission system, and it is also one of the main noise sources of automobiles. Therefore, the test and control of transmission noise has a significant effect on improving the noise level of the vehicle. There are mainly two ways to test the noise of automobile transmissions: vehicle road test and test bench test. Among them, although the working condition of the vehicle road test is the actual working condition, it is difficult to control the influence of other noise sources on the transmission noise because there are many noise sources in the actual vehicle road test. However, in the way of test bench testing, other noise interference is small, and the measured noise is closer to the real value, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/025G01M17/007
CPCG01M13/028G01M17/007
Inventor 陈书明郭晗贾纪绍张继修井晓瑞王登峰陈静
Owner JILIN UNIV