CN103043076A - Relay valve for brake system of railway vehicle - Google Patents
Relay valve for brake system of railway vehicle Download PDFInfo
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- CN103043076A CN103043076A CN2012105660390A CN201210566039A CN103043076A CN 103043076 A CN103043076 A CN 103043076A CN 2012105660390 A CN2012105660390 A CN 2012105660390A CN 201210566039 A CN201210566039 A CN 201210566039A CN 103043076 A CN103043076 A CN 103043076A
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- Valves And Accessory Devices For Braking Systems (AREA)
- Braking Systems And Boosters (AREA)
Abstract
The invention relates to a relay valve for a brake system of a railway vehicle. The relay valve comprises a valve body and a valve stem arranged inside a cavity of the valve body; three air channel connectors communicated with the internal cavity of the valve body are arranged on the valve body, two of the air channel connectors are air inlet connectors which are respectively connected with a brake air storage cylinder and controlled pressure, and the other air channel connector is an air outlet connector and is connected with a brake cylinder or a train pipe; an elastic recovery assembly is sleeved on the upper portion of the valve stem, the lower end of the valve stem is in contact connection with a valve port, and a central through hole communicated with the external atmosphere is arranged inside the valve stem; and a pressure regulating assembly placed below the valve stem is further arranged inside the valve body and is used for controlling break-make between the brake cylinder or the train pipe and the atmosphere or the brake air storage cylinder. The relay valve is simple in structure, low in cost and fast in response, and has fast air charging and exhausting properties, outputted pressure can be stably and linearly changed along with change of the controlled pressure, and can be controlled stably, the air flow can be increased or decreased according to the change of the controlled pressure, and functions of air charging, air exhausting or pressure maintaining are realized, so that braking force of the vehicle or a train is controlled.
Description
Technical field
The present invention relates to a kind of relay valve that works by gas pressure change in the pilot piping in Pneumatic brake systems inside that is installed in, specifically, relate to a kind of rail vehicle braking control system relay valve.
Background technology
Rail vehicle braking system for accurate control compressed air pressure, improve and fill deflation rate, generally adopt relay valve to carry out charge air and amplify and control compressed-air actuated force value.Relay valve in the traditional railway locomotive braking system is accepted the manipulation of automatic brake valve, changes according to the pressure of equalizing reservoir and moves, and that directly controls train pipe fills wind or air draft, and the brake system of using this relay valve is traditional train pipe decompression brake mode.Relay valve is comprised of two port type relay valves, total wind intercepter valve (IV) and base three parts.Two port type relay valves are the monofilm plate structure, and its effect is the pressure according to equalizing reservoir, and that controls total wind direction train pipe fills wind or air draft; The air feed of the two port type relay valves of total wind direction opened or cuts off by total wind intercepter valve (IV) according to the handle position of automatic brake valve; Base be used for to be linked up relay valve and outside total wind, train pipe and is overcharged pipe and equal pipes etc., and relay valve is installed on the car body.
In EMU, city rail vehicle and locomotive braking system, usually produce a pilot control pressure by electromagnetic valve or corresponding mechanical mechanism, the control relay valve carries out charge air and amplifies, form fast needed control brake-pressure, and then the generation braking force, and traditional relay valve can't satisfy rail vehicle braking system.Publication number is CN101992764A, the Chinese invention patent that name is called " relay valve that is used for high-speed train braking system " discloses a kind of in order to adapt to the relay valve of high-speed train braking system control policy, this relay valve adopts the pre-governor pressure that is easy to control accurately and fast to be input in the relay valve, so that relay valve is thought the greatly flow brake-pressure that brake cylinder output changes with pre-governor pressure, thereby finish the effects such as braking, pressurize and alleviation of high speed train.
Similarly, the present invention also is based on the shortcoming of prior art, a kind of rail vehicle braking system relay valve that can satisfy the rail vehicle braking system requirement has been proposed, the pre-governor pressure control brake-pressure that employing is easy to control accurately and fast, it is the variation of pre-governor pressure according to pilot control pressure, amplify compressed air require, realize inflation, exhaust or pressure holding function, thus control vehicle or braking force of train.
Summary of the invention
The present invention is directed to existing relay valve and can't satisfy the above-mentioned deficiencies such as rail vehicle braking system requirement, poor stability, provide a kind of simple in structure, cost is low, can satisfy the rail vehicle braking system relay valve of rail vehicle braking system requirement, this relay valve can be the variation of pre-governor pressure according to pilot control pressure, amplify compressed air require, realize inflation, exhaust or pressure holding function, thus control vehicle or braking force of train.
Technical scheme of the present invention is: a kind of rail vehicle braking system relay valve, comprise valve body and be arranged on the interior valve rod of valve body cavity, be provided with three air-path interfaces that are communicated with the valve body internal cavity on the valve body, wherein, two air-path interfaces are intake interface, connect respectively braking storage reservoir, pre-governor pressure, an air-path interface is the interface of giving vent to anger, and connects brake cylinder or train pipe; The top of valve rod is set with the elastic recovery assembly, and the lower end is connected with the valve port contact, is provided with the central through hole that is communicated with ambient atmosphere in the valve rod; Also be provided with the pressure adjusting part that is placed on the valve rod below in the valve body, be used for the break-make of control brake cylinder or train pipe and atmosphere or braking storage reservoir.
Preferably, the pressure adjusting part comprises lamina membranacea and the piston that is arranged on the lamina membranacea top, and the cavity of lamina membranacea bottom is communicated with pre-control pressure breathing interface, and the upper end of piston is connected with valve interior wall by the piston seat of honour.
Preferably, the upper end of piston is inlaid with the elastic seal assembly.
Preferably, the elastic recovery assembly is connected with Wind discharging hat on being arranged on valve body, and the central through hole of valve rod is communicated with ambient atmosphere by the cavity of Wind discharging hat inside.
Preferably, the elastic recovery assembly comprises spring and spring mounting seat, and an end of spring is connected with spring mounting seat, and the other end is connected with the bottom of valve rod.
Preferably, the valve rod lower end contacts the junction and is inlaid with the elastic seal assembly with valve port.
Preferably, the elastic seal assembly is rubber seal.
The invention has the beneficial effects as follows: the present invention is simple in structure, cost is low, have and rush fast exhaust performance, response time is fast, delivery pressure can change the linear change that is stability with pre-governor pressure, pressure control is stable, can change according to pre-governor pressure, amplifies compressed air require, realize inflation, exhaust or pressure holding function, thus control vehicle or braking force of train.
Description of drawings
Accompanying drawing 1 is the structural representation of the specific embodiment of the invention.
Accompanying drawing 2 is the action principle figure of the specific embodiment of the invention.
The specific embodiment
The present invention will be further described in detail below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of rail vehicle braking system relay valve, comprise valve body 1 and be arranged on the interior valve rod 2 of valve body 1 cavity, be provided with three air-path interfaces that are communicated with valve body 1 internal cavity on the valve body 1, wherein, two air-path interfaces are intake interface, connect respectively braking storage reservoir, pre-governor pressure, an air-path interface is the interface of giving vent to anger, and connects brake cylinder or train pipe; The top of valve rod 2 is set with the elastic recovery assembly, and the lower end is connected with valve port 3 contacts, is provided with the central through hole that is communicated with ambient atmosphere in the valve rod 2; Also be provided with the pressure adjusting part that is placed on valve rod 2 belows in the valve body 1, be used for the break-make of control brake cylinder or train pipe and atmosphere or braking storage reservoir.
In order to control the break-make of brake cylinder or train pipe and atmosphere or braking storage reservoir, above-mentioned pressure adjusting part comprises lamina membranacea 4 and is arranged on the piston 5 of lamina membranacea 4 tops, the cavity of lamina membranacea 4 bottoms is communicated with pre-control pressure breathing interface, and the upper end of piston 5 is connected with valve body 1 inwall by the piston seat of honour 6.
In order better to cut off the path of brake cylinder or train pipe and atmosphere, the upper end of above-mentioned piston 5 is inlaid with elastic seal assembly 7, and when piston contacted with valve rod, elastic seal assembly 7 worked, and cut off the path of brake cylinder or train pipe and atmosphere.
When brake cylinder or train tube pressure are too high, for adjustable brake cylinder or train tube pressure, realize the path of brake cylinder or train pipe and atmosphere, for reducing brake cylinder or train tube pressure, above-mentioned elastic recovery assembly is connected with Wind discharging hat 8 on being arranged on valve body 1, and the central through hole of valve rod 2 is communicated with ambient atmosphere by the cavity of Wind discharging hat 8 inside.
For the ease of determining the initial position of valve rod, above-mentioned elastic recovery assembly comprises spring 9 and spring mounting seat 10, and an end of spring 9 is connected with spring mounting seat 10, and the other end is connected with the bottom of valve rod 2.
Valve rod 2 lower ends contact the junction with valve port 3 and are inlaid with elastic seal assembly 11, and when brake cylinder or train tube pressure rose to certain value, elastic seal assembly 11 worked, and cut off the path of braking storage reservoir and brake cylinder or train pipe.
Cut off effect in order to ensure sealing, the elastic seal assembly is for adopting enough good rubber seals of elasticity.
Principle of work: the cavity that enters lamina membranacea 4 bottoms when pre-governor pressure, promoting lamina membranacea 4 moves up, lamina membranacea 4 upwards promotes valve rod 2 by piston 5, cut off the path of brake cylinder or train pipe and atmosphere, elastic seal assembly 11 leaves valve port 3 with valve rod 2, open the path of braking storage reservoir and brake cylinder or train pipe, braking storage reservoir is to brake cylinder or Train line charging.When brake cylinder or train tube pressure rise to certain value, valve rod 2 promotes lamina membranaceas 4 and moves down, and elastic seal assembly 11 leans against on the valve port 3, cuts off the path between braking storage reservoir and brake cylinder or the train pipe; If pre-governor pressure raises again, then lamina membranacea 4 upwards promotes valve rod 2 by piston 5 again, again opens the path of braking storage reservoir and brake cylinder or train pipe, and braking storage reservoir is again to brake cylinder or Train line charging, until elastic seal assembly 11 leans against on the valve port 3.If pre-control pressure drop, then lamina membranacea 4 moves down, elastic seal assembly 7 breaks away from valve rod 2, open the path of brake cylinder or train pipe and atmosphere, brake cylinder or train pipe discharge section pressurized air, pressure drop are to certain value, and lamina membranacea 4 moves up under the effect of pre-governor pressure, elastic seal assembly 7 leans against valve rod 2, cuts off the path of brake cylinder or train pipe and atmosphere.Pre-control pressure reduces at 0 o'clock, and lamina membranacea 4 moves on to the bottom, and the path of brake cylinder or train pipe and atmosphere is opened all the time, and the pressurized air in brake cylinder or the train pipe is discharged in the atmosphere rapidly.
Claims (7)
1. rail vehicle braking system relay valve, comprise valve body and be arranged on the interior valve rod of valve body cavity, it is characterized in that: be provided with three air-path interfaces that are communicated with the valve body internal cavity on the valve body, wherein, two air-path interfaces are intake interface, connect respectively braking storage reservoir, pre-governor pressure, an air-path interface is the interface of giving vent to anger, and connects brake cylinder or train pipe; The top of valve rod is set with the elastic recovery assembly, and the lower end is connected with the valve port contact, is provided with the central through hole that is communicated with ambient atmosphere in the valve rod; Also be provided with the pressure adjusting part that is placed on the valve rod below in the valve body, be used for the break-make of control brake cylinder or train pipe and atmosphere or braking storage reservoir.
2. rail vehicle braking system relay valve according to claim 1, it is characterized in that: the pressure adjusting part comprises lamina membranacea and is arranged on the piston of lamina membranacea top, the cavity of lamina membranacea bottom is communicated with pre-control pressure breathing interface, and the upper end of piston is connected with valve interior wall by the piston seat of honour.
3. rail vehicle braking system relay valve according to claim 2, it is characterized in that: the upper end of piston is inlaid with the elastic seal assembly.
4. rail vehicle braking system relay valve according to claim 1 is characterized in that: the elastic recovery assembly is connected with Wind discharging hat on being arranged on valve body, and the central through hole of valve rod is communicated with ambient atmosphere by the cavity of Wind discharging hat inside.
5. according to claim 1 or the described rail vehicle braking system relay valve of 4 described any one, it is characterized in that: the elastic recovery assembly comprises spring and spring mounting seat, one end of spring is connected with spring mounting seat, and the other end is connected with the bottom of valve rod.
6. rail vehicle braking system relay valve according to claim 1, it is characterized in that: the valve rod lower end contacts the junction and is inlaid with the elastic seal assembly with valve port.
7. according to claim 3 or the described rail vehicle braking system relay valve of 6 any one, it is characterized in that: the elastic seal assembly is rubber seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105660390A CN103043076A (en) | 2012-12-24 | 2012-12-24 | Relay valve for brake system of railway vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105660390A CN103043076A (en) | 2012-12-24 | 2012-12-24 | Relay valve for brake system of railway vehicle |
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| Publication Number | Publication Date |
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| CN103043076A true CN103043076A (en) | 2013-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105660390A Pending CN103043076A (en) | 2012-12-24 | 2012-12-24 | Relay valve for brake system of railway vehicle |
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| CN (1) | CN103043076A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105196997A (en) * | 2015-10-30 | 2015-12-30 | 四川制动科技股份有限公司 | Integrated-type electro-pneumatic execution unit |
| CN105216774A (en) * | 2015-10-30 | 2016-01-06 | 四川制动科技股份有限公司 | A kind of two port type electropneumatic valve |
| CN106882175A (en) * | 2017-04-01 | 2017-06-23 | 眉山中车制动科技股份有限公司 | Application valve and rail vehicle braking system |
| CN109278791A (en) * | 2018-10-30 | 2019-01-29 | 中车青岛四方车辆研究所有限公司 | Rail vehicle aerobraking control unit |
| CN113525326A (en) * | 2021-06-30 | 2021-10-22 | 眉山中车制动科技股份有限公司 | Three-pressure distribution valve |
| CN114750737A (en) * | 2022-05-30 | 2022-07-15 | 中车制动***有限公司 | Locomotive brake control system and control method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3519182A1 (en) * | 1985-05-29 | 1986-12-04 | Graubremse Gmbh, 6900 Heidelberg | Trailer brake valve for dual line air brake systems of trailers |
| CN201544951U (en) * | 2009-11-09 | 2010-08-11 | 天津机辆轨道交通装备有限责任公司 | Relay valve |
| CN101992764A (en) * | 2010-11-01 | 2011-03-30 | 中国铁道科学研究院机车车辆研究所 | Relay valve for brake system of high-speed train |
| CN202481072U (en) * | 2012-03-26 | 2012-10-10 | 中国铁道科学研究院机车车辆研究所 | Relay valve used for rail traffic vehicle through electric pneumatic braking system |
| CN203020302U (en) * | 2012-12-24 | 2013-06-26 | 青岛四方车辆研究所有限公司 | Relay valve for railway vehicle braking system |
-
2012
- 2012-12-24 CN CN2012105660390A patent/CN103043076A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3519182A1 (en) * | 1985-05-29 | 1986-12-04 | Graubremse Gmbh, 6900 Heidelberg | Trailer brake valve for dual line air brake systems of trailers |
| CN201544951U (en) * | 2009-11-09 | 2010-08-11 | 天津机辆轨道交通装备有限责任公司 | Relay valve |
| CN101992764A (en) * | 2010-11-01 | 2011-03-30 | 中国铁道科学研究院机车车辆研究所 | Relay valve for brake system of high-speed train |
| CN202481072U (en) * | 2012-03-26 | 2012-10-10 | 中国铁道科学研究院机车车辆研究所 | Relay valve used for rail traffic vehicle through electric pneumatic braking system |
| CN203020302U (en) * | 2012-12-24 | 2013-06-26 | 青岛四方车辆研究所有限公司 | Relay valve for railway vehicle braking system |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105196997A (en) * | 2015-10-30 | 2015-12-30 | 四川制动科技股份有限公司 | Integrated-type electro-pneumatic execution unit |
| CN105216774A (en) * | 2015-10-30 | 2016-01-06 | 四川制动科技股份有限公司 | A kind of two port type electropneumatic valve |
| CN105216774B (en) * | 2015-10-30 | 2017-12-05 | 眉山中车制动科技股份有限公司 | A kind of double port type electric pneumatic valves |
| CN105196997B (en) * | 2015-10-30 | 2017-12-19 | 眉山中车制动科技股份有限公司 | A kind of integrated electric sky execution unit |
| CN106882175A (en) * | 2017-04-01 | 2017-06-23 | 眉山中车制动科技股份有限公司 | Application valve and rail vehicle braking system |
| CN109278791A (en) * | 2018-10-30 | 2019-01-29 | 中车青岛四方车辆研究所有限公司 | Rail vehicle aerobraking control unit |
| CN109278791B (en) * | 2018-10-30 | 2019-08-27 | 中车青岛四方车辆研究所有限公司 | Rail vehicle aerobraking control unit |
| CN113525326A (en) * | 2021-06-30 | 2021-10-22 | 眉山中车制动科技股份有限公司 | Three-pressure distribution valve |
| CN113525326B (en) * | 2021-06-30 | 2022-06-28 | 眉山中车制动科技股份有限公司 | Three-pressure distribution valve |
| CN114750737A (en) * | 2022-05-30 | 2022-07-15 | 中车制动***有限公司 | Locomotive brake control system and control method |
| CN114750737B (en) * | 2022-05-30 | 2023-01-20 | 中车制动***有限公司 | Locomotive brake control system and control method |
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Address after: 266031 Shandong province Qingdao City, Ruichang Road No. 231 Applicant after: Qingdao Sifang Rolling Stock Research Institute Co., Ltd. Address before: 266000 Ruichang Road, Shandong, China, No. 231, No. Applicant before: Qingdao Sifang Rolling Stock Research Institute Co., Ltd. |
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Application publication date: 20130417 |