EMU axle end grounding device wear test bench

A grounding device and wear test technology, which is applied in railway vehicle testing and other directions, can solve problems such as the wear test of ungrounded devices, achieve good social and economic benefits, improve safe operation, and ensure the effect of accuracy

Inactive Publication Date: 2017-11-28
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the wear test of the grounding device is a destructive test, and only when the grounding device of the EMU is under high-speed conditions can the damage and its cause be diagnosed
However, the existing test device cannot realize the test of the wear condition of the grounding device during the actual operation of the EMU.

Method used

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  • EMU axle end grounding device wear test bench
  • EMU axle end grounding device wear test bench
  • EMU axle end grounding device wear test bench

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0045] In order to better understand the technical scheme of the present invention, the present invention will be described in detail below in conjunction with accompanying drawing:

[0046] refer to figure 1 , EMU shaft end grounding device wear test bench includes basic frame A, drive motor assembly B, first test shaft assembly C, second test shaft assembly D, one-axis left mounting ring assembly E, one-axis right Side mounting ring assembly F, secondary shaft left mounting ring assembly G and secondary shaft right mounting ring assembly H.

[0047] refer to figure 2 The power train components in the EMU shaft end grounding device wear test bench include the drive motor assembly B, the first test shaft assembly C, the first shaft drive belt 13, the second test shaft assembly D and the second shaft drive belt 14. When the power is supplied to the motor, the normal operation of the motor generates rotational torque; as shown by the arrow in the figure, the rotational torque...

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Abstract

The invention discloses a wear test bench for a shaft end grounding device of an EMU. The test bench includes a driving motor assembly fixed on a basic frame and a test shaft assembly symmetrically arranged on both sides of the driving motor assembly and having the same structure; The test shaft assembly is fixed on the basic frame through the installation ring assembly symmetrically arranged at both ends of the same structure; the drive motor assembly is connected with the test shaft assembly on both sides through the transmission belt to form the structure of the test bench. Power train components; the test shaft assembly consists of the test shaft, the test shaft pulley fixed on the test shaft and the ground connection flange fixed on the end of the test shaft. The invention can simulate the wear of the EMU under actual working conditions, and analyze the main cause of the wear of the grounding device of the EMU through the comparison data of the presence or absence of current. The test bench adopts a reasonable mechanical structure speed adjustment system to ensure Accuracy of grounding device loss test data.

Description

technical field [0001] The invention relates to a grounding drainage test device for a rail vehicle, more specifically, the invention relates to a wear test bench for a shaft end grounding device of an EMU. Background technique [0002] As the main artery of the national economy, the railway is an important symbol to measure a country's infrastructure level and transportation capacity. High-speed EMUs are one of the core technologies of high-speed railways. Under the premise of ensuring operational safety, in order to further improve the operation quality of my country's high-speed railways, it is imperative to improve the overall technical level of EMUs, and optimizing the shaft end grounding device of EMUs is one of them. very important technical issue. [0003] The grounding device is an important part of the EMU grounding system. Its main function is to prevent the current from passing through the EMU bearings to cause electric corrosion and endanger the driving safety. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M17/08
Inventor 苏建陈秋雨牛治慧张益瑞张兰程蕾谭福星洛启朱丽叶王启明陈学渊张亨飏许影陈雷张雪平
Owner JILIN UNIV
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