Railway brake valve with automatic lubricating oil circulating function

A technology of cyclic action and brake valve, which is applied in the direction of pneumatic brakes, hydraulic brakes, railway car body parts, etc., can solve the problems of poor lubrication of the slide valve structure, easy strain of the slide valve surface, leakage, etc., and achieve easy existing Product transformation, ingenious structure, and the effect of reducing sliding wear

Active Publication Date: 2014-12-10
MEISHAN CRRC BRAKE SCI & TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

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

Method used

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  • Railway brake valve with automatic lubricating oil circulating function

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Embodiment Construction

[0013] Below in conjunction with accompanying drawing, the present invention is described in detail.

[0014] 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.

[0015] Such as figure 1 As shown, a railway brake valve with active lubricating circulation, including main valve body composition 1, main piston rod 2, slide valve 3 and main valve lower cover 6, lubricating oil is arranged on the main piston rod 2 cycle device.

[0016] The lubricating oil circulation device includes an oil inlet groove 10 and an oil outlet rod 9, an oil inlet hole 16 is arranged at the lower end of the oil inlet groove 10, and the lower end surface of the oil inlet groove 10 ...

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Abstract

The invention discloses a railway brake valve with an automatic lubricating oil circulating function. The railway brake valve comprises a main valve body assembly, a main piston rod, a slide valve and a main valve lower cover, wherein the main piston rod is provided with a lubricating oil circulating device and provided with an oil way inside, an oil outlet of the oil way aligns to an oil inlet of the upper end face of the slide valve to communicate the upper end face with the work face of the slide valve. Since the lubricating oil circulating device is additionally arranged on the main piston rod, lubricating oil in the main valve lower cover is extracted to the upper end face of the slide valve, flows to the work face to generate oil film through the oil inlet of the upper end face of the slide valve, redundant lubricating oil flows back to an oil tank of the main valve lower cover along two sides of the slide valve. Thus, the slide valve vertically moves during working and is lubricated, lubricating of a slide valve pair is effectively guaranteed, existence time of the oil film is prolonged, slide abrasion is reduced, work environment of the slide valve pair is improved, and service life of the slide valve pair is prolonged.

Description

technical field [0001] The invention belongs to the technical field of railway vehicle brake valves, in particular to a railway brake valve with an active lubricating cycle function. Background technique [0002] At present, the maintenance cycle of the main brake valve 104 valve / 120 valve of railway passenger and 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 research and research, poor lubrication of the spool valve structure is a relatively 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. Therefore, improving poor lubrication has become the main factor to prolong the maintenance cycle of the brake valve. [0003] There are two ways to improve the poor lubrication of the slide val...

Claims

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Application Information

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IPC IPC(8): B61H11/06
Inventor 朱迎春杨建平李谋逵吕超安鸿肖维远肖乾佑王春山
Owner MEISHAN CRRC BRAKE SCI & TECH CO LTD
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