Rust removal method of locomotive vehicle wheel pair

A technology for railway locomotives and wheelsets, which is applied to grinding machines, metal processing equipment, grinding/polishing equipment, etc. It can solve problems such as corrosion, flaw detection interference, and inability to complete wheel derusting treatment, so as to avoid damage and slow down damage.

Inactive Publication Date: 2018-05-08
苏州贝尔纳德铁路设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the long-term operation of the wheel set, except for the tread and the wheel rim in contact with the rail, the rest of the parts exposed to the air will be corroded to varying degrees. Accuracy is greatly reduced
[0004] At present, the derusting method for the wheel set is mainly the mechanical derusting method, and its main process is: roll the wheel set into the derusting machine, make the wheel set fall on the runner, and the wheel set is driven by the runner to make the original rust. The ground rolls axially. At the same time, the cantilever wire brush protruded from the descaling machine is pressed against the wheel shaft and rotates at a high speed and moves laterally. The rust attached to the wheel shaft is brushed off by the high-speed friction between the wire brush and the wheel shaft. The purpose of derusting, but because the two sides of the wheel are curved surfaces, the wire brush cannot reach it, so only the axle can be derusted, but the derusting treatment of the wheel cannot be completed, leaving a safety hazard

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The present embodiment provides a method for derusting a wheel set of a railway locomotive, comprising the following steps:

[0024] a. Coarse grinding: use a grinding wheel grinder to grind the wheel set to remove the rust layer and delamination defects on the surface of the wheel set;

[0025] b. Intermediate grinding: The intermediate grinding adopts the combination of lathe and abrasive belt to grind the wheel set, and stop when a small area of ​​metallic luster appears on the surface of the wheel set;

[0026] c. Fine grinding: use the shot blasting process to derust the wheel set in all directions. When the surface of the wheel set shows metallic luster, stop the shot blasting machine.

[0027] During rough grinding, control the speed of the grinding machine to 250 rpm, and the model of the abrasive belt of the grinding wheel is GXK51-260-P-P260; during medium grinding, control the speed of the lathe to 150 rpm, and the model of the abrasive belt is GXK51-370-P- ...

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PUM

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Abstract

The invention discloses a rust removal method of a locomotive vehicle wheel pair. The rust removal method of the locomotive vehicle wheel pair relates to the technical field or rust removal of the locomotive vehicle wheel pair, and comprises the following steps of a, rough grinding: adopting a grinding wheel grinder for grinding the wheel pair, and removing a rust layer and a delaminating defect on a surface of the wheel pair; b, medium grinding: adopting a manner combining a turning lathe and a sanding belt for grinding the wheel pair, and stopping when a small area of metal luster occurs onthe surface of the wheel pair; and c, accurate grinding: adopting a shot blasting process for omnidirectionally removing rust of the wheel pair, and enabling a shot blasting machine to stop working when metal luster occurs on the surface of the wheel pair.

Description

technical field [0001] The invention relates to the technical field of derusting a wheel set of a railway locomotive, in particular to a derusting method for a wheel set of a railway locomotive. Background technique [0002] The wheel set of the railway rolling stock is the part of the rolling stock that is in contact with the rail, and it consists of two left and right wheels that are firmly pressed on the same axle. The role of the wheel set is to ensure the running and turning of the rolling stock on the rails, bear all the static and dynamic loads from the rolling stock, transmit it to the rail, and transfer the load caused by the uneven track to the parts of the rolling stock. In addition, the driving and braking of the rolling stock is also achieved through the wheelset. The wheel set is one of the most important components on the railway rolling stock, and it is also one of the most critical control points related to the safety of the train. If there is a quality pr...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): B24B27/033B24C1/08
CPCB24B27/033B24C1/086
Inventor郭爱华张可强
Owner苏州贝尔纳德铁路设备有限公司