Gearbox assembly casing strain testing device
A technology of strain testing and gearbox, which is applied in the direction of measuring devices, using stable torsion to test the strength of materials, instruments, etc., can solve the problems of reverse dragging of gearboxes, hidden safety hazards, and affecting the efficiency of strain testing, so as to meet the requirements of strength use Demand, not easy to reverse the problem, control the effect of simple
Inactive Publication Date: 2019-01-25
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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Problems solved by technology
[0005] There are many problems in the existing shell strain test device: (1) the rotation of the output shaft of the differential is controlled by the load motor, which is prone to the problem of reverse drag of the gearbox, which will affect the accuracy of the strain test data of the shell; (2) Due to the load speed at the output end of the gearbox assembly, the input end of the gearbox assembly cannot quickly load the torque to the target value, which affects the efficiency of the strain test; (3) The load motor is only connected to one of the differentials. The output shafts are connected, and the strength of a single output shaft may not meet the strength requirements of the gearbox assembly, posing safety hazards; (4) The existing shell strain test device needs to control two motors at the same time, and the control strategy is complicated
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[0032] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
[0033] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.
[0034] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the description.
[0035] In all examples shown and discussed herein, any specific values should be construed as exemplary only, and not as limitations. Therefore, other instances of the exemplary embodiment may have dif...
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The invention discloses a gearbox assembly casing strain testing device. The testing device comprises a hydraulic driving mechanism and two output end locking mechanisms. The hydraulic driving mechanism is arranged to be in fixed connection with an input shaft of a gearbox of a gearbox assembly. The two output end locking mechanisms are matched with two output shafts of a differential mechanism ofthe gearbox assembly to lock the output shafts of the differential. Each output end locking mechanism includes a base and a locking member provided with a locking hole on the lock in spline fit withthe corresponding output shaft of the differential. The gearbox assembly casing strain testing device adopts the output end locking mechanisms to lock the two output shafts of the differential of thegearbox assembly, a gearbox is less prone to reverse dragging problems, and the input end of the gearbox assembly can quickly load torque to the target value and meet the strength requirements of thegearbox assembly. The gearbox assembly casing strain testing device only needs to control the output of the hydraulic driving mechanism, and is simple to control and easy to implement.
Description
technical field [0001] The invention relates to the field of gearbox performance detection, and more particularly, to a strain test device for a casing of a gearbox assembly. Background technique [0002] The casing is one of the most basic key parts of the gearbox, and the strength of the casing meeting the design requirements is the primary basis for ensuring the normal realization of the gearbox function. In order to investigate the strength and stiffness performance of the gearbox casing under harsh working conditions, it is necessary to detect the strain of the casing and evaluate whether the strain of the casing is within the expected range of variation. [0003] Especially for the gearbox assembly in which the gearbox and the differential are integrated in one housing, the performance of the housing of the gearbox assembly will affect the normal operation of the gearbox and the differential, and the strain performance of the housing appears Particularly important. ...
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Login to View More IPC IPC(8): G01N3/22G01N3/06
CPCG01N3/06G01N3/22G01N2203/0021G01N2203/0048G01N2203/0075G01N2203/0676G01N2203/0682
Inventor 杨先时彭帮亮陈伟杨伟龙
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD