Rubber joint torsion and deflection testing device and testing method

Abstract

The invention belongs to the technical field of rubber joint testing devices, and particularly relates to a rubber joint torsion testing device and a rubber joint deflection testing device and a testing method. The torsion testing device comprises a base I, a pressure sleeve I, a moment arm I and a pressure rod I, wherein the pressure rod I is connected with a vertical load applying device; an outer sleeve of a rubber joint is arranged in the pressure sleeve I; two ends of a joint center shaft of the rubber joint are respectively fixed on two fixed vertical plates; a bottom plate of the base I is fixed on a work bench of a testing machine; and the deflection testing device has a similar structure. The testing method comprises the following steps: calculating vertical displacement of a pressure head of a press machine according to the torsion or deflection angle requirements and the length of the moment arm; loading and recording the vertical displacement and the load of the pressure head of the press machine by the press machine; and calculating a torsion or deflection rigidity value. The testing device has the beneficial effects that the torsion and deflection rigidity values of the rubber joint can be accurately detected; the testing device has positive significance in control of the quality of rubber joint products; and the problem that the running quality of locomotives is affected due to the fact that the deflection rigidity and the torsion rigidity of the rubber joint do not accord with the design requirements is avoided.

Description

technical field [0001] The invention belongs to the technical field of rubber joint test devices, and in particular relates to a rubber joint torsion and deflection test device and a test method. Background technique [0002] Rubber joints (such as figure 1 , figure 2 (shown) is a rubber elastic element widely used in railway locomotive bogie axle box tie rods, motor suspenders and other devices, and has the functions of load bearing and force transmission. The rubber joints realize the relative displacement between the connecting parts through radial, axial, torsional and deflection deformations. The torsional stiffness and deflection stiffness of the rubber joints of the axle box tie rods affect the dynamic performance of the locomotive. AC drive electric locomotives have design requirements for the torsional stiffness and deflection stiffness of the rubber joints of the bogie. However, since the torsional stiffness and deflection stiffness tests of the rubber joints ar...

AI Technical Summary

Problems solved by technology

AC drive electric locomotives have design requirements for the torsional stiffness and deflection stiffness of the rubber joints of the bogie. However, since the torsional stiffness and deflection stiffness tests of the rubber joints are not easy to implement on the test device, these two stiffness tests can only be used on locomotives at present. When carrying out type tests, specific values ​​cannot be detected, which is not conducive to the structural design and quality control of rubber joints, and also has a negative impact on the stability of railway locomotives.

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