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Simulation fatigue testing device for suspension motor suspension hanging plate spring of motor

A fatigue test and suspension motor technology, which is applied in the direction of applying repetitive force/pulse force to test the strength of materials, and can solve problems such as lack of mature technical specifications

Inactive Publication Date: 2012-08-08
SOUTHWEST JIAOTONG UNIV +3
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

How to simulate the actual operating conditions and carry out the fatigue test on the motor suspension plate spring, there is no mature technical specification in China at present

Method used

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  • Simulation fatigue testing device for suspension motor suspension hanging plate spring of motor
  • Simulation fatigue testing device for suspension motor suspension hanging plate spring of motor
  • Simulation fatigue testing device for suspension motor suspension hanging plate spring of motor

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Experimental program
Comparison scheme
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Embodiment Construction

[0014] The present invention will be further described below in conjunction with accompanying drawing.

[0015] Such as figure 1 Shown is the spring structure of the motor optional suspension plate. Flat plate end 102 with hole 101 and ear hole end 103 . During the test, fix the flat end of the motor suspension leaf spring on the figure 2 On the plate end clamping table 20 shown, the width of the plate end is 80 mm, and the thickness is 20 mm.

[0016] In order to simulate the actual situation during the operation of the locomotive, the leaf spring 100 is fixed in a cantilever beam state. While bearing alternating axial loads, it also bears lateral displacements that change according to the law of symmetry cycles, resulting in bending deformation. Under working conditions, it must be ensured that the leaf spring will not be damaged by fatigue within the expected life. figure 2 and image 3 The axial load shown in is the vertical direction when the train is actually run...

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PUM

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Abstract

The invention discloses a simulation fatigue testing device for a suspension motor suspension hanging plate spring of a motor. The simulation fatigue testing device consists of a framework 14, a vertical loading mechanism, a horizontal loading mechanism, a force transferring unit 4 and a plate spring clamping mechanism 20, wherein the vertical loading mechanism is connected to a transverse beam of the framework; and the horizontal loading mechanism is fixed on a base. According to the device, fatigue testing is performed on the motor suspension hanging plate spring by simulating the practical working condition, and the motor suspension hanging plate spring has certain transverse displacement under a vertical alternating load. The horizontal loading mechanism and the vertical loading mechanism are two hydraulic oil cylinders respectively, and are not interfered with each other during loading in the horizontal direction and the vertical direction. The device is suitable for evaluating the fatigue performance of a real suspension motor suspension hanging plate spring for a steering frame suspension device of a high-speed locomotive.

Description

technical field [0001] The invention belongs to special mechanical performance testing equipment, in particular to the field of manufacturing simulated fatigue testing devices. Background technique [0002] At present, my country's high-speed railway is developing rapidly, and it is urgent to develop the manufacturing technology of my country's independent intellectual property rights for key components. The motor suspension leaf spring is a key component of the high-speed locomotive bogie above 350 km / h. When the high-speed locomotive is running, the component is mainly subjected to alternating loads in the lateral and vertical directions, and the fatigue performance is the most critical mechanical property of the leaf spring. How to simulate the actual operating conditions and carry out the fatigue test on the motor suspension leaf spring, there is no mature technical specification in China at present. The simulated fatigue test of the motor suspension plate spring is a ...

Claims

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Application Information

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IPC IPC(8): G01N3/36
Inventor 卢存光杨川戴光泽周殿买梁树林高国庆谢昌伟欧祖孝
Owner SOUTHWEST JIAOTONG UNIV
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