Full-automatic CNC paint and rust remover for railway wagon axles

Abstract

The invention provides a full-automatic CNC paint and rust remover for railway wagon axles. The full-automatic CNC paint and rust remover mainly comprises an axle paint and rust removing device and adigital control system, wherein a front main brush, a rear main brush, a left brush and a right brush feed to realize automatic digital control. During operation, the digital control system detects the motor current driving a wire brush to rotate and feeds back to the digital control system; the digital control system issues an instruction to a servo feed mechanism to realize automatic advancing and retreating of the wire brush, so that the wire brush exerts a constant force on the axle, the efficiency and quality of the paint and rust removal are high, and no paint stripper is needed. Meanwhile, the front main brush and the rear main brush are located on opposite sides of the upper part of the axis of the wheelset axle body to maintain the stability of the axle in the paint and rust removal process; and further, conversion control of positive and negative rotation for the front and rear main brushes, the left and right brushes and a wheel runner according to the number of cleaning wheelsets is automatically realized by the digital control system, and the life of the wire brush is significantly prolonged.

Description

technical field [0001] The invention relates to the field of paint and rust removal for railway freight wheel sets, in particular to a fully automatic numerical control paint and rust removal machine for railway freight wheel axles. Background technique [0002] During the inspection and maintenance of railway freight wheel sets, it is necessary to conduct surface magnetic particle flaw detection on the wheelset. According to the flaw detection requirements, all flaw detection parts "must expose the basic metal surface". rust job. [0003] Currently there are the following problems: [0004] 1. In the process of cleaning and removing paint and derusting the wheel shaft at present, because most of the surface of the shaft body is well adhered to the anti-rust varnish, it is necessary to apply the paint remover on the surface of the shaft body before cleaning and removing the paint and rust, and then carry out the cleaning operation. The paint is seriously polluted. The pain...

AI Technical Summary

Problems solved by technology

[0004] 1. In the process of cleaning and removing paint and derusting the wheel shaft at present, because most of the surface of the shaft body is well adhered to the anti-rust varnish, it is necessary to apply the paint remover on the surface of the shaft body before cleaning and removing the paint and rust, and then carry out the cleaning operation. The paint is seriously polluted. The paint remover is composed of acid, chlorinated hydrocarbons, ketones, esters, alcohols, benzene series and other solvents. It has strong corrosiveness, high volatility, high toxicity, and serious environmental pollution. Especially in winter when the doors and windows are closed, the sour smell in Duanxiu warehouse is very strong, which is easy to cause harm to the health of employees

[0005] 2. The currently used wheel set depainting and derusting machine uses a swing arm type hard wire wheel mechanism and a runner mechanism. The wire wheel is relatively hard. During the process of depainting and derusting the wheel set, the out-of-roundness will occur due to the abrasion of the wheel rim , when the runner drives the wheel to rotate, radial runout will occur, and it is difficult for the wire wheel to exert constant pressure on the shaft body for continuous and stable paint and rust removal operations;

[0006] At the same time, due to the long-term soaking of the runner mechanism in water, the paint remover and other substances in the water, as well as the mechanical particles formed by steel wire debris and rust on the shaft body, a composite sewage is formed, which corrodes the bearing sealing ring and the shaft sealing part, and at the same time a ton Multiple wheel sets also frequently impact the bearing seat. Under the double unfavorable factors of the machine, the runner bearings, runners and seals are quickly damaged, and they need to be disassembled and replaced in about two months

[0007] 3. The paint and rust removal of the wheel-to-spoke plate is done by manual grinding, but manual grinding is time-consuming and laborious, and the grinding is not thorough, which increases the labor intensity of workers

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