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Surface mounting method for detecting residual stress of train wheel rim

A residual stress and wheel technology, which is applied in the field of patches for detecting residual stress of train wheel rims, can solve the problems of long time consumption, low patch positioning accuracy, and low precision, so as to ensure accuracy, improve test efficiency, and improve The effect of precision

Inactive Publication Date: 2020-07-31
MAANSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the patch method is used for measurement, and the position accuracy of the measurement point is required to be very precise.
However, the existing patch positioning methods have the problems of long time consumption and low accuracy, resulting in low positioning efficiency and low patch positioning accuracy, which affects the accuracy of measurement results

Method used

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  • Surface mounting method for detecting residual stress of train wheel rim

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Embodiment Construction

[0021] The specific embodiment of the present invention will be described in further detail by describing the embodiments below with reference to the accompanying drawings. The purpose is to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solutions of the present invention. and contribute to its implementation.

[0022] It should be noted that in the following implementation manners, the "first", "second" and "third" do not represent an absolute distinction in structure and / or function, nor does it represent a sequence of execution , but only for the convenience of description.

[0023] Such as figure 1 Shown, the present invention provides a kind of patch method that detects train wheel rim residual stress, comprises the steps:

[0024] S1. Install the measuring tool on the rim of the wheel, make the first measuring ruler of the measuring tool parallel to the axis of the wheel, make the second...

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Abstract

The invention discloses a surface mounting method for detecting residual stress of a train wheel rim. The method comprises: S1, installing a measuring tool on a wheel rim, making a first measuring scale of the measuring tool to be parallel to the axis of a wheel, making a second measuring scale of the measuring tool to be attached to the inner side rim face of the wheel, making a vernier scale ofthe measuring tool to be attached to the outer side rim face of the wheel, and the second measuring scale and the vernier scale are made to be parallel; S2, mounting a first patch; S3, installing a second patch; S4, installing a third strain gauge; S5, installing a fourth patch; S6, installing a fifth patch. According to the surface mounting method for detecting the residual stress of the train wheel rim, a special measuring tool is adopted, the positioning precision of a residual stress test point of the train wheel rim can be improved, the test efficiency is improved, and the accuracy of a measurement result is ensured.

Description

technical field [0001] The invention belongs to the technical field of residual stress measurement of train wheels, in particular, the invention relates to a patch method for detecting residual stress of train wheel rims. Background technique [0002] The residual stress of the train wheel rim directly affects the service safety of the wheel, and domestic and foreign standards have clear requirements for it. [0003] For the measurement of the residual stress of the rim of the train wheel, the method adopted in China is to select a wheel, and cut the wheel from the rim to the hub by the flame cutting method. second wheel. Foreign countries mainly implement the residual stress test of the patch method in Appendix C of the European standard EN13262. Through multi-point measurement, the distribution of residual stress at different positions from the tread surface of the rim to the bottom is finally obtained, which is more representative. However, the patch method is used for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L5/00G01B5/00
CPCG01B5/00G01L5/0047
Inventor 赵海江波张明如刘学华邹强宫彦华汤志贵
Owner MAANSHAN IRON & STEEL CO LTD