Bearing rigidity test system of bevel gear of automobile driving axle assembly
A drive axle assembly and support rigidity technology, which is applied in the direction of machine gear/transmission mechanism testing, measuring devices, instruments, etc., can solve the problems of small measuring range, high cost, inconvenient adjustment of installation position, etc., and achieve low cost, convenient operation, The effect of reducing the labor intensity of the test
Active Publication Date: 2015-01-14
TSINGHUA UNIV +1
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Problems solved by technology
However, since the displacement in this test is very small, usually below 0.5 mm, the requirements for the displacement sensor in this test are small range and high precision, which leads to the high cost of the non-contact displacement sensor suitable for this test. And it is not easy to adjust the installation position
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[0025] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0026] figure 1 It is a structural diagram of a certain type of drive axle assembly, and it is an example of a test object of this test system. Depend on figure 1 It can be seen that the drive axle assembly mainly includes axle housing 1, driven bevel gear 2, differential bearing seat 3, half shaft 4, main reducer housing 5, differential 6, fork flange 7, tapered roller bearing 8. Active bevel gear 9 and other components. The axle housing 1 and the main reducer housing 5 are collectively referred to as the housing. During the rigidity test of the bevel gear support of the automobile drive axle assembly, the torque is input from the fork flange 7, the driving bevel gear 9 and the driven bevel gear 2 rotate at a certain speed, and the displacement of the relevant measuring points is measured in X, Y, Z The displacement of the driving bevel gear 9 re...
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A bearing rigidity test system of a bevel gear of an automobile driving axle assembly comprises a displacement sensor connected with a concentrator connected with a computer. A trigger switch unit is connected with the computer configured with test software. Reading of the displacement sensor is transferred to the computer under control of the test software, the trigger switch element is arranged on a casing, and a corresponding protrusion block is arranged on a driven bevel gear. When the protruding block rotates to the position of the trigger switch element, the trigger switch element transmits signals to the computer, and the test software automatically records reading of the displacement sensor. The test software records displacement at all displacement measuring points each time the system is triggered. Therefore, the bearing rigidity test system achieves automatic measurement of displacement data, ensures that displacement of all the displacement measurement points can be recorded when the driven bevel gear is located at the identical position relative to the casing. The bearing rigidity test system is reliable in accuracy and low in cost.
Description
technical field [0001] The invention belongs to the technical field of auto parts testing, and in particular relates to a rigidity testing system for a bevel gear support of an automobile drive axle assembly. Background technique [0002] As one of the main components of the drive axle assembly, the final drive plays the role of changing the speed and increasing the torque during the working process of the car. Most transaxle final drives include a pair of bevel gears, a driving bevel gear and a driven bevel gear. The structure of the drive axle assembly is complex, and an unreasonable structure may cause poor support rigidity of the bevel gear, which will cause deformation and misalignment of the bevel gear during operation, and decrease the meshing accuracy, causing noise and affecting the performance of the drive axle assembly. Therefore, in the development and design process of the axle, it is necessary to test the bevel gear support rigidity of the drive axle assembly....
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IPC IPC(8): G01M13/02G01B21/02
Inventor 范子杰彭钱磊丁炜琦张龙桂良进
Owner TSINGHUA UNIV