An elastic wheel torsion test tool

Abstract

An elastic wheel torsion testing tool comprises an installation panel (1), a positioning ring (2), fixing blocks (3), a rim pressing plate (4), a testing shaft (5) and a loading force arm (6). The positioning ring is used for positioning a wheel (7) to be tested in the radial direction. The fixing blocks fixed on the installation panel are arranged on the radial periphery of the positioning ring. The rim pressing plate is used for pressing the wheel to be tested between the installation panel and the rim pressing plate or between the positioning ring and the rim pressing plate in the axial direction. The rim pressing plate pressing the wheel to be tested is fixedly connected with the fixing blocks. The middle part of the testing shaft is fixedly connected with the wheel to be tested. The axial two ends of the testing shaft are respectively and fixedly connected with the loading force arm. According to the invention, the structure of the testing tool is simple, the testing flow is simplified, the testing cost is low, and the elastic wheel torsion testing tool is suitable for large-batch detection tests; the wheel is convenient to clamp and position, the precision is high, the testing efficiency is high, the pressed forced points of the wheel are uniformly distributed, and the pressing effect is better; and the elastic wheel torsion testing tool is applicable to testing of wheels different in thickness.

Description

technical field [0001] The invention relates to an elastic wheel detection device, in particular to an elastic wheel torsion testing tool. Background technique [0002] The elastic wheel is used in the field of urban rail transit. An elastic element is arranged between the wheel core 71 and the tire 72 of the elastic wheel to reduce the impact between the wheel and the track and reduce noise pollution. The torsional stiffness of the elastic wheel is currently disclosed. There are fewer scenarios tested. [0003] Chinese patent 201510522298.7 discloses an auxiliary fixture for measuring the torsional stiffness of an elastic wheel, which performs torsion testing through the surplus shaft. The upper end of the support frame used to support the interference shaft has two circular grooves. Two circular grooves matched with two circular grooves. In this scheme, during the rotation of the interference shaft, it will be subjected to the friction resistance moment of the circular gr...

AI Technical Summary

Problems solved by technology

[0002] The elastic wheel is used in the field of urban rail transit. An elastic element is arranged between the wheel core 71 and the tire 72 of the elastic wheel to reduce the impact between the wheel and the track and reduce noise pollution. The torsional stiffness of the elastic wheel is currently disclosed. less tested

[0003] Chinese patent 201510522298.7 discloses an auxiliary fixture for measuring the torsional stiffness of an elastic wheel, which performs torsion testing through the surplus shaft. The upper end of the support frame used to support the interference shaft has two circular grooves. Two circular grooves matched with two circular grooves. In this scheme, during the rotation of the interference shaft, it will be subjected to the friction resistance moment of the circular groove on the support frame, and the measured torsional stiffness value will be different from the actual one. deviation, the accuracy is difficult to guarantee; and in this scheme, the fixing points of the tire are only the lower two points, and the clamping force is not uniform. The torsional stiffness values ​​obtained from the test are different, which affects the overall test accuracy

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