Driving shaft system rack test device and method for automobile

Abstract

The invention discloses a driving shaft system rack test device and method for an automobile. The driving shaft system rack test device includes a base, a temperature sensor, a control console, a driving motor mechanism and a load motor mechanism.The driving motor mechanism and the load motor mechanism are each provided with an upper shaft clamp and a lower shaft clamp, and a counter shaft is connected between the two upper shaft clamps , wherein cardan joints are arranged at the two ends of the counter shaft,a Y-direction force sensor and a torque sensor are arranged on the two lower shaft clamps of the the driving motor mechanism and the load motor mechanism correspondingly;a rotation mechanism, an X-direction prismatic pair and a Y-direction prismatic pair are sequentially arranged at the bottom of the driving motor mechanism from top to bottom; and the bottom part of the load motor mechanism is successively top-to-bottom provided with an X-direction prismatic pair and a Y-directionprismatic pair. According to the driving shaft system rack test device and method for the automobile, simulation experiments of multiple driving shaft performance parameters can be realized efficiently and accurately, experimental time and costs are saved, and effective technical support is provided for design development and performance experiments of automobile constant-speed driving shafts, especially for NVH performance verification.

Description

technical field [0001] The invention relates to a bench test device and method for an automobile drive shaft system, which are used for measuring various performance parameters of the automobile drive shaft, especially NVH performance parameters. Background technique [0002] The driving shaft of the constant velocity universal joint assembly is an important part of the automobile transmission device, which coordinates the necessary traction and speed of the automobile under various driving conditions, and ensures that the left and right driving wheels of the automobile can adapt to the differential speed requirements. The quality and reliability of its working performance directly affect the safety, stability and comfort of driving, so it must be strictly tested before use. [0003] With the widespread use of electric vehicles (the driving torque of the motor is large and can reach the maximum torque in an instant) and high-torque engines, the NVH problem of the vehicle cau...

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Problems solved by technology

[0004] At present, the main constant velocity drive shaft test benches in China can only test a few performances of the drive shaft, such as circumferential clearance, Y-direction clearance, slip curve, etc., and cannot test the Y-direction derived force and high-frequency slip resistance. , Complementary torque and other parameters that characterize NVH performance cannot guarantee the quality of constant velocity joint assembly products, and will cause repeated development of test benches and waste of human resources

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