CN105202080A - Brake cylinder for locomotive - Google Patents
Brake cylinder for locomotive Download PDFInfo
- Publication number
- CN105202080A CN105202080A CN201510635426.9A CN201510635426A CN105202080A CN 105202080 A CN105202080 A CN 105202080A CN 201510635426 A CN201510635426 A CN 201510635426A CN 105202080 A CN105202080 A CN 105202080A
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- cylinder body
- piston rod
- piston
- cylinder
- hole
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Abstract
The invention relates to a brake device, in particular to a brake cylinder for a brake system of a locomotive. The brake cylinder comprises a cylinder body, a piston is concentrically arranged in the cylinder body, and the outer side wall of the piston is matched with the inner side wall of the cylinder body in a sliding and sealing mode. One end of the piston is provided with a piston rod, the center line of the piston rod coincides with the center line of the piston, a through hole is formed in the end, corresponding to the piston rod, of the cylinder body, one end of the piston rod penetrates through the through hole to extend out of the cylinder body, the piston rod is provided with a brake leather cup, and the outer wall of the piston rod is matched with the through hole in a sliding and sealing mode. The portion, in the cylinder body, of the piston rod is provided with a relieving spring. The brake cylinder is characterized in that the inner side wall of the cylinder body is provided with a modified polytetrafluoroethylene layer. When the brake cylinder is used, the piston extends out smoothly without needing the help of lubricating grease, traffic accidents are not prone to being caused, and the service life is longer.
Description
Technical field
The present invention relates to a kind of braking device, is the master cylinder be used in Locomotive Brake System specifically.
Background technique
As everyone knows, all railway locomotives being all provided with the braking system for preventing its motion, in braking system, all can having master cylinder.
At present, the railway locomotive master cylinder used in industry comprises cylinder body, has the piston in arranged concentric in cylinder body, coordinates between the outer side wall of piston with the madial wall of cylinder body in slipper seal.There is piston rod one end of described piston, the center line of piston rod overlaps with the center line of piston, and there is through hole that one end of cylinder body that piston rod is corresponding, and one end of piston rod reaches outside cylinder body through this through hole, and it has braking cup, the outer wall of piston rod coordinates in slipper seal with between through hole.That section of piston rod of cylinder interior there is release spring.During use, inner chamber of cylinder block on rear side of piston is connected with the air outlet of compressor, when needing braking, compressor promotes piston by the inner chamber of cylinder block on rear side of compressed air delivery to piston, make piston rod protruding, now, braking cup matches with wheel thus brakes, after end of braking, piston rod is pushed to original place by release spring.This master cylinder in use, need smear lubricating grease on inboard wall of cylinder block to lubricate, because pressurized air is entering in cylinder body and can produce condensed water, these condensed waters can cause lubricating grease to go bad, thus cause lubricating cylinders bad, piston is stretched out, shrinks and have some setbacks, reduce the efficiency of braking, time serious, even cause brake fault, cause traffic accident, and lubricating grease will slowly disappear in use for some time, the wearing and tearing of inboard wall of cylinder block are accelerated, reduces the working life of master cylinder.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of railway locomotive master cylinder, this master cylinder in use do not need by lubricating grease, piston stretches out smooth and easy, not easily causes traffic accident, and working life is longer.
For solving the problem, provide following technological scheme:
Railway locomotive master cylinder of the present invention comprises cylinder body, has the piston in arranged concentric in cylinder body, coordinates between the outer side wall of piston with the madial wall of cylinder body in slipper seal.There is piston rod one end of described piston, the center line of piston rod overlaps with the center line of piston, and there is through hole that one end of cylinder body that piston rod is corresponding, and one end of piston rod reaches outside cylinder body through this through hole, and it has braking cup, the outer wall of piston rod coordinates in slipper seal with between through hole.That section of piston rod of cylinder interior there is release spring.The madial wall being characterized in described cylinder body there is modified Teflon layer.
Wherein, the outer wall of described piston rod there is modified Teflon layer.
Take above scheme, have the following advantages:
Madial wall due to the cylinder body of railway locomotive master cylinder of the present invention there is modified Teflon layer.Modified Teflon layer has lubrication, wear-resisting characteristic, so operationally, do not need to smear lubricating grease on the inwall of master cylinder to lubricate, thus avoid the condensed water produced in cylinder body because of pressurized air lubricating grease is gone bad, cause the situation that lubricating cylinders is bad, piston is stretched out, contraction remains smooth and easy, thus improve the efficiency of braking, avoid the brake fault because insufficient lubrication causes, reduce traffic accident odds, and there is wear resistance due to modified Teflon layer, the wear extent of inboard wall of cylinder block can be reduced, improve the working life of master cylinder.
Accompanying drawing explanation
Fig. 1 is the structural representation of railway locomotive master cylinder of the present invention.
Embodiment
As shown in Figure 1, railway locomotive master cylinder of the present invention comprises cylinder body 1, and cylinder body 1 is made up of steel, has the piston 2 in arranged concentric in cylinder body 1, coordinates between the outer side wall of piston 2 with the madial wall of cylinder body 1 in slipper seal.There is piston rod 3 one end of described piston 2, the center line of piston rod 3 overlaps with the center line of piston 2, that one end of cylinder body 1 of piston rod 3 correspondence there is through hole, one end of piston rod 3 reaches outside cylinder body 1 through this through hole, and it having braking cup 4, the outer wall of piston rod 3 coordinates in slipper seal with between through hole.That section of piston rod 3 of cylinder body 1 inside there is release spring 5.The madial wall of described cylinder body 1 and the outer wall of piston rod 3 all there is modified Teflon layer 6.
During use, cylinder body 1 inner chamber on rear side of piston 2 is connected with the air outlet of compressor, when needing braking, compressor promotes piston 2 by cylinder body 1 inner chamber on rear side of compressed air delivery to piston 2, make piston rod 3 protruding, now, braking cup 4 matches with wheel thus brakes, after end of braking, piston rod 3 is pushed to original place by release spring 5.
Claims (2)
1. railway locomotive master cylinder, comprises cylinder body (1), has the piston (2) in arranged concentric in cylinder body (1), coordinates between the outer side wall of piston (2) with the madial wall of cylinder body (1) in slipper seal; There is piston rod (3) one end of described piston (2), the center line of piston rod (3) overlaps with the center line of piston (2), cylinder body (1) that one end that piston rod (3) is corresponding there is through hole, one end of piston rod (3) reaches cylinder body (1) outward through this through hole, and it having braking cup (4), the outer wall of piston rod (3) coordinates in slipper seal with between through hole; That section of piston rod (3) that cylinder body (1) is inner there is release spring (5); The madial wall that it is characterized in that described cylinder body (1) there is modified Teflon layer (6).
2. railway locomotive master cylinder as claimed in claim 1, the outer wall that it is characterized in that described piston rod (3) has modified Teflon layer (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510635426.9A CN105202080A (en) | 2015-09-30 | 2015-09-30 | Brake cylinder for locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510635426.9A CN105202080A (en) | 2015-09-30 | 2015-09-30 | Brake cylinder for locomotive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105202080A true CN105202080A (en) | 2015-12-30 |
Family
ID=54949940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510635426.9A Pending CN105202080A (en) | 2015-09-30 | 2015-09-30 | Brake cylinder for locomotive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105202080A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3744596A (en) * | 1971-01-12 | 1973-07-10 | Bromsregulator Svenska Ab | Pneumatic cylinder-piston unit for railway brake riggings |
| CN2106111U (en) * | 1989-10-16 | 1992-06-03 | 铁道部四方机车车辆工厂 | Integral profiling braking cylinder |
| EP0790169A2 (en) * | 1996-02-16 | 1997-08-20 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Brake pad unit for railway vehicles |
| CN202170994U (en) * | 2011-08-08 | 2012-03-21 | 南车二七车辆有限公司 | Brake cylinder body |
| CN202280768U (en) * | 2011-10-20 | 2012-06-20 | 南车二七车辆有限公司 | Brake cylinder with self-lubricating function |
| CN202743265U (en) * | 2012-05-24 | 2013-02-20 | 宝鸡南车时代工程机械有限公司 | Novel railway track car brake shoe suspension device |
| CN104653773A (en) * | 2015-02-11 | 2015-05-27 | 无锡惠发特精密机械有限公司 | Train brake cylinder piston |
| CN205001426U (en) * | 2015-09-30 | 2016-01-27 | 无锡惠发特精密机械有限公司 | Checking cylinder for railroad locomotive |
-
2015
- 2015-09-30 CN CN201510635426.9A patent/CN105202080A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3744596A (en) * | 1971-01-12 | 1973-07-10 | Bromsregulator Svenska Ab | Pneumatic cylinder-piston unit for railway brake riggings |
| CN2106111U (en) * | 1989-10-16 | 1992-06-03 | 铁道部四方机车车辆工厂 | Integral profiling braking cylinder |
| EP0790169A2 (en) * | 1996-02-16 | 1997-08-20 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Brake pad unit for railway vehicles |
| CN202170994U (en) * | 2011-08-08 | 2012-03-21 | 南车二七车辆有限公司 | Brake cylinder body |
| CN202280768U (en) * | 2011-10-20 | 2012-06-20 | 南车二七车辆有限公司 | Brake cylinder with self-lubricating function |
| CN202743265U (en) * | 2012-05-24 | 2013-02-20 | 宝鸡南车时代工程机械有限公司 | Novel railway track car brake shoe suspension device |
| CN104653773A (en) * | 2015-02-11 | 2015-05-27 | 无锡惠发特精密机械有限公司 | Train brake cylinder piston |
| CN205001426U (en) * | 2015-09-30 | 2016-01-27 | 无锡惠发特精密机械有限公司 | Checking cylinder for railroad locomotive |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151230 |
|
| WD01 | Invention patent application deemed withdrawn after publication |