Rust removing and cleaning method for railway rolling stock wheel sets

Abstract

The invention relates to a rust removing and cleaning method for a railway rolling stock wheel set and is applied to the rust cleaning work prior to fault localization of the railway rolling stock wheel set. The rust removing and cleaning method includes the following steps: (1) placing the wheel set on a wheel rotator; (2) utilizing a high-pressure-water sand blasting gun to spray wheel shafts and two sides of the wheel respectively for 3 to 10 minutes by high-pressure water and sands to remove rust on the wheel set; (3) placing the wheel set at cleaning position and utilizing normal-pressure clean water to comprehensively spraying the rust-removed wheel set for 3 to 8 minutes. In the step (1), the rotating speed of the wheel rotator ranges from 3 to 20 turns per minute; in the step (2), the pressure of the high-pressure-water sand blasting gun ranges from 25 to 50 megapascals, and the flow ranges from 30 to 70 liters per minute.

Description

technical field [0001] The invention relates to a rust removal and cleaning method for a wheel set of a railway locomotive, in particular to a method for removing rust by spraying sandy water to the wheel set in an innovative way. 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 ...

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