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Railway brake valve with self-lubricating function

A brake valve, railway technology, applied in the direction of sliding valve, valve device, engine components, etc., can solve the problems of poor lubrication of the sliding valve structure, leakage, easy pulling of the sliding valve surface, etc., to achieve ingenious structure and reduce sliding wear. , to ensure the effect of lubrication

Active Publication Date: 2013-01-16
MEISHAN CRRC BRAKE SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the research and feedback information, poor lubrication of the spool valve structure is a common problem in use. When the spool valve pair is in a dry friction state, the spool valve surface is easily strained, resulting in leakage.

Method used

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  • Railway brake valve with self-lubricating function

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Embodiment Construction

[0009] Below in conjunction with accompanying drawing, the present invention is described in detail.

[0010] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0011] Such as figure 1 As shown, a railway brake valve with self-lubricating effect includes a main valve body 1, a spool valve 2 and a spool valve sleeve 3 arranged between the main valve body 1 and the spool valve 2, and the main valve body 1 An oil storage chamber 4 and an oil filling port 5 communicating with the oil storage chamber 4 are arranged on the top, the oil storage chamber 4 communicates with the oil passage 6 provided on the slide valve sleeve 3, and the oil outlet 7 of the oil pa...

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Abstract

The invention discloses a railway brake valve with a self-lubricating function. The railway brake valve comprises a main valve body, a slide valve and a slide valve sleeve which is arranged between the main valve body and the slide valve, wherein an oil storage chamber and an oil filling port which is communicated with the oil storage chamber are arranged on the main valve body, the oil storage chamber is communicated with an oil line which is arranged on the slide valve sleeve, and an oil outlet of the oil line is formed in a non-working area of the working area of the slide valve sleeve. The oil storage chamber is arranged on the main valve body, lubricating oil in the oil storage chamber passes through the oil path in the slide valve sleeve and the oil outlet to reach the working surface for generating an oil film, the slide valve moves up and down at the oil outlet during the operation, so that automatic lubricating is formed on a slide valve surface, a slide valve pair can be enabled to be effectively lubricated, accordingly, the existence time of the oil film is prolonged, the sliding wear is reduced, the working environment of the slide valve pair is improved, and the service live of the slide valve pair is prolonged. The railway brake valve is ingenious in structure, has an obvious effect, and is easy for new product processing and old product reproduction, and the existing railway brake valve is slightly changed.

Description

technical field [0001] The invention relates to a railway brake valve with self-lubricating effect. Background technique [0002] At present, the maintenance cycle of the main type brake valve 120 valve / 120-1 valve of railway freight cars in my country is two years. Compared with the foreign advanced level, the maintenance cycle is shorter and needs to be improved. The main reason for the short maintenance period is the leakage of the slide valve structure. According to the research and feedback information, poor lubrication of the spool valve structure is a common problem in use. When the spool valve pair is in a dry friction state, the spool valve surface is easily strained, resulting in leakage. Improving poor lubrication has become the main factor to prolong the maintenance cycle of brake valves. [0003] There are two ways to improve poor lubrication: increase the kinematic viscosity of silicone oil and prolong the existence time of oil film. The kinematic viscosity o...

Claims

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Application Information

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IPC IPC(8): F16K3/36
Inventor 朱迎春吕超李谋逵田宇
Owner MEISHAN CRRC BRAKE SCI & TECH CO LTD
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