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Dowty retarder free of maintenance and repair

A maintenance-free, decelerating top technology, applied in railway car body parts, rail brakes, transportation and packaging, etc., can solve the problems of uneven manual maintenance effect, high maintenance cost, fragile hydraulic oil, etc., saving manpower and material resources , Low maintenance cost, and the effect of preventing breakage

Pending Publication Date: 2020-07-31
哈尔滨铁路减速顶调速研究有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the current deceleration top needs regular outdoor maintenance and maintenance during its use, dismantling and repairing indoors, replacing vulnerable and fatigue-prone parts such as sealing rings and hydraulic oil, and uneven manual maintenance effects can easily cause equipment damage , The problem of high maintenance cost, and then provide a maintenance-free, maintenance-free retarder

Method used

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  • Dowty retarder free of maintenance and repair
  • Dowty retarder free of maintenance and repair
  • Dowty retarder free of maintenance and repair

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Experimental program
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Effect test

specific Embodiment approach 1

[0021] Specific implementation mode one: combine Figure 1-Figure 4 Describe this embodiment, a maintenance-free and maintenance-free decelerator described in this embodiment, which includes a housing assembly 1, a sliding cylinder assembly 2, and a shock-stop structure 3; the housing assembly 1 uses stud bolts 25 Fasten on the rail with lock nut 24, slide cylinder assembly 2 includes piston rod 4, pressure valve outer spring 5, pressure valve inner spring 6, retaining ring 7, pressure valve stem 8, piston head 9, speed valve plate 10 , speed valve spring 11, slow return valve plate 12, sliding cylinder block 13, sealing cover 14, sealing ring assembly 15, sealing ring assembly 22, support ring 21 and sealing cover retaining ring 16; sealing cover 14 is installed on the sliding cylinder On the bottom of the body 13, the piston rod 4 is inserted vertically on the sealing cover 14, the top of the piston rod 4 is processed with a blind hole, the pressure valve rod 8 is installed ...

specific Embodiment approach 2

[0023] Specific implementation mode two: combination Figure 1-Figure 2 To illustrate this embodiment, the retaining ring 16 is installed on the bottom end of the sealing cover 14 , and the retaining ring 16 is welded and fixed to the inner side wall of the slide cylinder body 13 . The inner sealing ring assembly 22 is installed inside the sealing cover 14, and the inner sealing ring assembly 22 is composed of a star ring sealing ring of high-grade Turcon material and an O-ring as a force element; the outer sealing ring assembly 15 is installed outside the sealing cover 14 , The outer sealing ring assembly 15 is composed of two O-rings. The double-action seal makes the sealing effect better, and the others are the same as the first embodiment.

specific Embodiment approach 3

[0024] Specific implementation mode three: combination figure 1 To illustrate this embodiment, the slide cylinder assembly 2 also includes a gasket adjustment plate 17 and a gasket 18 at the bottom of the housing. The gasket adjustment plate 17 is arranged between the bottom of the blind hole of the piston rod 4 and the outer spring 5 of the pressure valve. The bottom gasket 18 is arranged in the housing assembly 1 , and the bottom end of the piston rod 4 passes through the housing assembly 1 and is connected with the anti-shock structure 3 . Others are the same as in the first embodiment.

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Abstract

The utility model discloses a dowty retarder free of maintenance and repair, and relates to a dowty retarder for a railway marshalling yard. The invention aims at solving the problems that in the using process of an existing dowty retarder, periodic outdoor maintenance and repair, indoor disassembly and repair, replacement of easily-damaged and easily-fatigued parts such as a sealing ring and hydraulic oil are needed, the manual maintenance effect is uneven, equipment damage is easily caused, and the maintenance cost is high. The dowty retarder comprises a shell assembly, a sliding oil cylinder assembly and an anti-impact structure. The shell assembly is fastened on a steel rail through studs and locknuts, and a protective sleeve is installed at the bottom of the shell. The sliding oil cylinder assembly comprises a piston rod, a pressure valve outer spring, a pressure valve inner spring, a check ring, a pressure valve rod, a piston head, a speed valve plate, a speed valve spring, a slow return valve plate, a sliding oil cylinder body, a sealing cover, an inner sealing ring assembly, an outer sealing ring assembly, a supporting ring, a sealing cover check ring, special hydraulic oiland high-purity nitrogen. The dowty retarder is used for the coupling area of the railway marshalling yard.

Description

technical field [0001] The invention relates to a deceleration jack for a railway marshalling yard, in particular to a maintenance-free and maintenance-free deceleration jack for a marshalling yard. Background technique [0002] As a hydraulic speed regulating device used in the shunting of railway marshalling yards, retarder jacks are widely used in railway marshalling yards. When the deceleration top is used for a certain period of time or reaches a certain number of rolling times, it is necessary to carry out outdoor maintenance on the deceleration top. It is necessary for on-site maintenance workers to disassemble the cotter pin and backlash pin, pull out the sliding cylinder, and add lubricating oil manually. If the lubrication effect does not meet the requirements It will lead to more failures of deceleration jacks, mainly manifested as slow return of sliding cylinders, cylinder scuffing and other phenomena. These faults seriously affect the use of deceleration jacks. ...

Claims

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Application Information

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IPC IPC(8): B61K7/02
CPCB61K7/02
Inventor 周际赵连祥王潜王敬巍王胜军王志刘帆赵彦凯胡东东李昕旭陈峰滕亮苏南王佳
Owner 哈尔滨铁路减速顶调速研究有限公司
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