Test system for performance measurement of gear selection and shifting mechanism of transmission

Abstract

The invention discloses a performance measuring and testing system for a gear selecting-and-shifting mechanism of a transmission. The performance testing system comprises the components of a base of a measuring and testing station, wherein the base is provided with a mounting rack for fixing and mounting the to-be-measured gear selecting-and-shifting mechanism, a gear selecting operating mechanism which is used for operating the gear selecting-and-shifting mechanism, and a gear shifting operating mechanism that is used for making the gear shifting arm of the gear selecting-and-shifting mechanism to rotate; and a gear shifting finger stand which matches the gear shifting finger of the to-be-measured gear selecting-and-shifting mechanism, wherein the gear shifting finger stand is provided with a third angular displacement sensor for measuring a rotation angle and a displacement sensor for measuring axial displacement of the gear shifting finger. The performance measuring and testing system has advantages of detecting parameters such as a gear selecting-and-shifting force and the displacement of the gear selecting-and-shifting mechanism, improving efficiency and accuracy in testing of the gear selecting-and-shifting mechanism in production, realizing relatively high testing precision consistency, and improving performance of a product after leaving a factory.

Description

technical field [0001] The invention relates to the technical field of automobile testing, in particular to a performance measurement test system for a gear selection mechanism assembly in a transmission, in particular, to a gear selection force and displacement of a gear selection arm of a transmission gear selection mechanism, and a gear selection displacement of the gear selection arm. A system for measuring and evaluating the performance of shifting force and shifting displacement, shifting finger stroke and rotation angle, and transmission shifting mechanism. It belongs to the technical field of detection devices. Background technique [0002] The gear selection mechanism of the transmission is an important part of the automobile transmission. It is one of the most important parts inside the transmission. The gear selection of the gear shifter transmits the force and torque to the gear selection mechanism through the flexible shaft. With its own structural characterist...

AI Technical Summary

Problems solved by technology

As an intermediate key component for transmitting force and torque, the gear selection mechanism has a particularly prominent impact on the performance of the gear selection due to changes in its own structural parameters. Its quality directly affects the driving of the car. The installation of the mechanism on the car greatly affects the safety of the car; the structural design is unreasonable, which will reduce the shift stiffness and affect the driver's operating experience; the gap is too large to cause the shift stroke during the shift process increase; therefore, it is necessary to detect unqualified products in the production process of the gear selection mechanism, and optimize the design parameters or design structure of the transmission gear selection through the detection data

[0003] In the existing production process, due to the lack of good automatic testing equipment, it mainly relies on manual use of jigs and inspection tools for testing. Due to factors such as workers' skills, it cannot be guaranteed that defective products in the production process can be detected, and the detection accuracy is limited. Poor consistency will lead to uneven products. From the appearance, it is impossible to distinguish whether the internal parts of the product are missing, and it is impossible to obtain valid data for comparison with the design standards. The relevant measurement data obtained by traditional manual inspection methods are relatively subjective and difficult It is impossible to evaluate the performance of the gear selection mechanism qualitatively and quantitatively, so it is necessary to design a measurement and test system specially used to detect the performance of the transmission gear selection mechanism

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