Device for testing static torsional strength and vibration strength of transmission assembly

Abstract

The invention discloses a test device for static torsional strength and anti-vibration strength of a transmission assembly, which includes a test bench and a slider; the loading mechanism on the slider includes a loading motor and a half shaft connected to the output end of the loading motor through a transmission mechanism; the test bench The frame is equipped with a supporting mechanism consisting of a suspension fixing device and a controllable upper and lower telescopic device. The support reaches the specified height and returns quickly, thereby generating an instantaneous impact caused by gravity to simulate the vehicle under bumpy road conditions, and to test the strength of the transmission suspension position, so that the test results can be closer to the vehicle road test According to the actual working conditions, the invention has a simple and compact structure, is easy to install, saves installation space, and improves the accuracy of the transmission test. The invention is suitable as a testing device for performing static torsional vibration tests on automobile engine transmission casings.

Description

technical field [0001] The invention relates to a vehicle performance testing device, in particular to a testing device for static torsional strength and anti-vibration strength of a transmission assembly. Background technique [0002] At this stage, domestic automobile transmission static torsion test equipment such as image 3 As shown, the test process is as follows: the transmission 33 is fixed on a panel 34 connected to the ground; the output end of the transmission 33 is fixed on the panel 37 connected to the ground through a transmission shaft 36 (half shaft), and the torque is measured by the torque sensor 32 to control; when doing the static torsion test, the transmission 33 needs to be shifted to a low-speed gear (generally the first gear); the torque is output to the reducer 33 through the loading motor 31, and the torque is increased by the reducer 33 and then transmitted to the input shaft; Since the output end is fixed at this time, the power cannot be transmit...

AI Technical Summary

Problems solved by technology

[0004] (1) A purely rigid connection is used between the tested part and the test device; under the same working condition, the requirements for the strength of the shaft and gear are increased, there is a problem of excess design, and the cost of materials is increased

[0005] (2) Due to the structural limitations of the existing static torsion test bench, it is impossible to detect the suspension point where the transmission case is connected to the vehicle, so that it can only be put in the later vehicle road test, increasing the number of products The development cycle and the number of trials of the transmission

[0006] The Chinese utility model patent No. 022767169 relates to a "hydraulic automobile transmission static torsion test bench", which uses double-leaf swing hydraulic cylinders for hydraulic multi-loading, although it can overcome the uncontrollable loading force existing in motor loading. Unsmooth and other deficiencies, but it is still impossible to simulate the actual working conditions of the whole vehicle

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