Fatigue test stand for gearbox of passenger vehicle

Abstract

The invention provides a fatigue test stand for a gearbox of a passenger vehicle. A high-speed driving motor, a bearing support, a gear case, a left loading motor and a right loading motor are arranged on the testing stand, wherein the high-speed driving motor is connected with the bearing support through a high-speed transmission shaft; one side of the bearing support is provided with a mounting position of a gearbox to be detected; a first low-speed transmission shaft used for being connected with the right output of the gearbox to be detected is connected with the right loading motor; and a second low-speed transmission shaft used for being connected with the left output of the gearbox to be detected is connected with the left loading motor through the gear case and a third low-speed transmission shaft. The fatigue test stand not only can stagger the loading motor on one side of the high-speed driving motor with the high-speed driving motor, but also has the advantages of simple structure, high reliability, and high precision for rotational speed and torque control of the testing stand.

Description

technical field [0001] The invention relates to a passenger car transmission fatigue test bench. Background technique [0002] At present, on the passenger car gearbox fatigue test bench, since the center distance in the horizontal direction of the gearbox is much smaller than half of the outer diameter of the high-speed drive motor, in order to stagger the positions of the loading motor on the side of the high-speed drive motor and the high-speed drive motor, generally adopt The high-speed drive motor is connected with the high-speed belt to connect with one shaft of the gearbox. Since the belt often produces a speed difference during operation, and the efficiency of the belt is relatively low, it is often used to connect the high-speed drive motor with the high-speed belt. As a result, the speed and torque control accuracy of the test bench is low, and the reliability of the high-speed belt is also poor. Contents of the invention [0003] In order to overcome the shortc...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the shortcomings of low efficiency, poor reliability, and poor control accuracy of the speed and torque of the test bench when the high-speed drive motor is connected to the high-speed belt in the prior art, the present invention provides a passenger car gearbox fatigue test bench, which can not only The loading motor on the side of the high-speed drive motor is staggered from the position of the high-speed drive motor, and the structure is simple, the reliability is high, and the speed and torque control accuracy of the test bench is high

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