CN103921780A - Double-proportion relay valve - Google Patents
Double-proportion relay valve Download PDFInfo
- Publication number
- CN103921780A CN103921780A CN201410151407.4A CN201410151407A CN103921780A CN 103921780 A CN103921780 A CN 103921780A CN 201410151407 A CN201410151407 A CN 201410151407A CN 103921780 A CN103921780 A CN 103921780A
- Authority
- CN
- China
- Prior art keywords
- valve
- chamber
- valve body
- conversion
- interface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention provides a double-proportion relay valve provided with an upper valve body, a middle body, a lower valve body, an internal large template, a medium template, a small template and an inner body. The large template, a large piston, a large valve rod (7), an action valve, an action spring, a blind nut and a valve seat part are arranged in the upper valve body. The medium template, a medium piston, a relief spring and the like are arranged in the middle body. The small template, a small piston, the inner body and the like are arranged in the lower valve body. A change-over valve is arranged on the lower valve body. The double-proportion relay valve is compact in structure and stable and reliable in performance; the double-proportion relay valve can obtain pressure output of two sets of different series brake cylinders so as to meet the requirements for braking high and low speeds of high-speed trains.
Description
Technical field
The invention belongs to Braking System for High Speed Multiple Units PCV-1 type relay valve, particularly one " two ratio relay valve ".
Background technology
Chinese Railway is equipped after import of technology, and equipment manufacture, railway transportation equipment have been realized and having been developed by leaps and bounds, and domestic EMU is using company's products such as German KNORR by brake system always.Because imported product is expensive, Lead Time is not protected and the problem such as maintaining, have a strong impact on the sustainable development of domestic EMU, be therefore badly in need of vitals used in research and development domestic EMU brake system and system, with import substitutes.
PCV-1 type relay valve (two ratio relay valve) is exactly a vitals of the domestic EMU brake system of research and development in the recent period.This relay valve is mainly by upper and lower valve body, intermediate, and endosome, large, medium and small lamina membranacea, application valve, change-over valve, spring, the parts such as 0 type circle form.Its Main Function function is under the control of electric elements, can obtain the output of two groups of different serial brake-cylinder pressures by two ratio relay valves, to meet the braking requirement under the different operating modes of EMU.
Summary of the invention
The invention provides a kind of two ratio relay valve, for EMU brake system, under the control of electric elements, can obtain the output of two groups of different serial brake-cylinder pressures by two ratio relay valves, to meet the braking requirement under the different operating modes of EMU.
Content of the present invention is:
A kind of two ratio relay valve, it is characterized in that: connect intermediate (13) by upper valve body (9), intermediate connects lower valve body (19), between upper valve body and intermediate, there is large form (11), in the middle of intermediate and lower valve body, there is middle lamina membranacea (14), lower valve inner has endosome (16), and little template (17) is arranged at endosome bottom; Between upper valve body and intermediate, have C chamber, between intermediate and lower valve body, have Cvz chamber, the endosome bottom of lower valve body is Cx chamber;
In upper valve body, there are upper valve chamber and lower valve chamber,
Blind nut (1) is arranged at the upper valve chamber top of upper valve body, and blind nut central inner has application valve (5), and application valve has effect spring (3) outward, and between blind nut and application valve, O type circle a is arranged at top, and between blind nut and application valve, there is O type circle b at middle part;
Between the upper valve chamber of upper valve body and lower valve chamber, have ring-shaped valve seats (29), ring-shaped valve seats top coordinates with the seal ring bottom application valve;
In the middle of the stifled a of C chamber contracting, large valve rod (6) is housed, the large piston (8) of large valve rod on the indoor connection large form of C; The large form below of lower valve chamber is Cv chamber;
Large stem bottom connects the middle piston (15) of the indoor middle lamina membranacea of Cvz by intermediate bar, have release spring (12) above middle piston and between intermediate inner top; Between C chamber and Cvz chamber, there is the stifled b of Cvz chamber contracting;
In the middle of below middle piston, connect the little piston (18) in the indoor little template of Cx below lower valve inner endosome;
In lower valve body outside, conversion valve body (20) is housed, in conversion valve body, there is conversion valve pocket (21), conversion has in valve pocket and between change-over valve (22), change-over valve and conversion valve pocket, has O type circle c(24), change-over valve blind nut (27) is arranged at O type circle d (25), conversion valve body top, between change-over valve blind nut and change-over valve, there is change-over valve spring (26), between conversion valve body and conversion valve pocket, have O type circle d (25);
Between conversion valve body and conversion valve pocket, have upper and lower two ring casings, upper and lower two ring casings are sealed by three O type circle d;
The upper valve chamber of upper valve body connects R interface by internal pipeline, the lower valve chamber of upper valve body connects C interface by internal pipeline, C chamber connects Cv interface by internal pipeline, bottom, Cvz chamber connects FX2 interface by internal pipeline, bottom, Cx chamber connects d interface by internal pipeline, FX1 interface is arranged at blind nut top, and conversion valve body bottom connects F interface by internal pipeline; The upper ring casing of conversion valve body connects C interface by internal pipeline, the d interface perforation that the lower ring casing of conversion valve body is connected d interface and is connected by internal pipeline with bottom, Cx chamber by internal pipeline;
Between lower valve chamber and C chamber, have the stifled a(7 of C chamber contracting), between upper valve chamber and lower valve chamber, have the stifled b(10 of Cvz chamber contracting), have the stifled d(23 of Cx chamber contracting at d interface), in the Cv internal pipeline between intermediate and lower valve body, have the stifled c(28 of Cv pipe contracting);
Upper valve body (9), intermediate (13), lower valve body (19) are connected by bolted, and conversion valve body (20) is connected in lower valve body (19) by bolted.
Beneficial effect of the present invention:
This pair of ratio relay valve compact conformation, stable and reliable for performance.
As the control presssure air≤50KPa of change-over valve F mouth, it passes through the input of the pre-governor pressure of serial Cv mouth of setting, the output of one group of relatively high serial brake-cylinder pressure that can obtain, and the pressure output value of brake cylinder and the pre-governor pressure of Cv mouth are entered as direct ratio.
As the control presssure air >=300KPa of change-over valve F mouth, it is by the input of the pre-governor pressure of serial Cv mouth of setting, and another that can obtain organized the output of relatively low serial brake-cylinder pressure.The pressure output value of brake cylinder and the pre-governor pressure of Cv mouth are entered as direct ratio.
By the input of the different pre-governor pressures of Cv mouth, then be equipped with the control of change-over valve, two ratio relay valves can obtain two groups of different serial brake-cylinder pressures outputs, to meet the braking requirement of the high and low speed of EMU.
Brief description of the drawings:
Fig. 1 is two ratio relay valve structure principle charts.
In figure: (1) blind nut, (2) O type circle a, (3) effect spring, (4) O type circle b, (5) application valve, (6) large valve rod, (7) the stifled a of C chamber contracting, (8) large piston, (9) upper valve body, (10) the stifled b of Cvz chamber contracting, (11) large form, (12) release spring, (13) intermediate, (14) lamina membranacea in, (15) piston in, (16) endosome, (17) little template, (18) little piston, (19) lower valve body, (20) conversion valve body, (21) conversion valve pocket, (22) change-over valve, (23) the stifled d of Cx chamber contracting, (24) O type circle c, (25) O type circle d, (26) change-over valve spring, (27) change-over valve blind nut, (28) the stifled c of Cv pipe contracting, (29) valve seat.
Detailed description of the invention
A kind of two ratio relay valves, by the assembling of the parts such as upper valve body (9), intermediate (13) and lower valve body (19) and inner large form (11), middle lamina membranacea (14), little template (17), endosome (16), have formed the base portion of two ratio relay valves;
Wherein the Assembly of the parts such as large form (11), large piston (8), large valve rod (7), application valve (5), effect spring (4), blind nut (1) is in upper valve body (9), the Assembly of the parts such as middle lamina membranacea (14), middle piston (15), release spring are in intermediate (13), the Assembly of the parts such as little template (17), little piston (18), endosome (16), in lower valve body (19), are connected upper valve body (9), intermediate (13), lower valve body (19) by bolted.
This relay valve is also provided with change-over valve, and change-over valve is connected in lower valve body (19) by bolted.Wherein change the Assembly of the parts such as valve pocket (21), change-over valve (20), blind nut (1) in conversion valve body (20).
This relay valve is provided with on lower valve body (19): C pipe (brake-cylinder pressure delivery pipe), Cv pipe (pre-governor pressure input pipe), R pipe (pressure air source capsule) and F pipe (change-over valve control presssure pipe).
The action principle of two ratio relay valves
This relay valve is rubber diaphragm, stops valve arrangement, and each valve body processes by aluminum alloy, good looking appearance, generous.Manage the input of pre-governor pressure by Cv, then coordinate the input of change-over valve F management and control pressing pressure, can obtain two groups of different serial brake-cylinder pressure outputs.
1, air pressure≤50KPa. of change-over valve control tube F
1.1, retarder location
As air pressure≤50KPa of change-over valve control tube F, this relay valve is when " braking ", and large form (11), middle lamina membranacea (14), little template (17) all participate in work.
First (predetermined pre-governor pressure is by 50KPa, 100KPa, 150KPa in pre-governor pressure input pipe Cv, to input predetermined pressure air ... 600KPa), the pressure air of Cv pipe is immediately through the stifled c(28 of Cv pipe contracting) enter Cv chamber, enter Cvz chamber through the stifled b (10) of Cvz chamber contracting simultaneously, the pressure air of Cv chamber upwards promotes large form (11) and drives large valve rod (6) together with middle lamina membranacea (14) one the same moving, open application valve (5), and enter lamina membranacea in the compressing downwards of the pre-governor pressure in Cvz chamber, partial offset Cv chamber application force upwards.
Because application valve (5) is opened, the pressure air of blast main R pipe enters C pipe, through the stifled a(7 of C chamber contracting) enter C chamber, be braking earthen pipe C pipe delivery pressure.Simultaneously through the stifled d(23 of Cx chamber contracting) enter Cx chamber, the application force that partial offset C chamber is downward, the pressure of Cx chamber directly promotes to move in little template (17).
When the downward application force in C chamber, Cvz chamber and Cv chamber, Cx chamber upwards thrust be able to balance or when slightly high, the application force of C chamber promotes large form (11) and drives large valve rod (6) to move down together with application valve (5), make the closely connected valve seat of application valve (5) (29), the rubber cushion of the large closely connected application valve of valve rod (6) (5), this relay valve enters " service lap position ".Now, can obtain relatively high series braking earthen pipe C pipe delivery pressure.
1.2, alleviate position
When the pressure air of Cv chamber is in the time that Cv pipe definite value reduces, Cv chamber application force upwards, the downward application force in Cvz chamber reduces in proportion, now, C chamber, the downward application force in Cvz chamber is much larger than Cv chamber, Cx chamber application force upwards, impel large form (11) to drive large valve rod (6) together with middle lamina membranacea (14), little lamina membranacea (17) together moves down, make eventually the closely connected valve seat of application valve (5) (29), large valve rod (6) departs from the rubber cushion of application valve (5), open the path of braking earthen pipe C row atmosphere, C pipe, C chamber, the pressure air of Cx chamber is through the EX1 mouth row atmosphere of blind nut (1).Now, this relay valve is " alleviating position ".
When being reduced to, the pressure air of C pipe, C chamber, Cx chamber balances each other with the pressure of Cv pipe, Cv chamber, Cvz chamber or when slightly low, large form (11) drives large valve rod (6) together with middle lamina membranacea (14), little lamina membranacea (17) one the same moving, but on the application force that moves only can make the rubber cushion of the closely connected application valve of large valve rod (6) (5), application valve (5) is still closely connected with valve seat (29).Now this relay valve is " alleviating pressurize position ".
If the pre-governor pressure of Cv pipe reduces to zero, the pressure air of C pipe, C chamber, Cx chamber also can be alleviated to zero completely, and now relay valve is " direct release position ".
2, air pressure >=300KPa. of change-over valve control tube F
2.1, retarder location
As air pressure >=300KPa of change-over valve control tube F, this relay valve is being done the used time, only has large form (11), middle lamina membranacea (14) participation work.
Pre-governor pressure input pipe Cv inputs predetermined pressure air, and (predetermined pre-governor pressure is by 50KPa, 100KPa, 150KPa ... 600KPa), the pressure air of Cv pipe is immediately through the stifled c(28 of Cv pipe contracting) enter Cv chamber, enter Cvz chamber through the stifled b (10) of Cvz chamber contracting simultaneously, the pressure air of Cv chamber upwards promotes large form (11) and drives on large valve rod (6) to move, open application valve (5), and enter lamina membranacea in the compressing downwards of the pre-governor pressure in Cvz chamber, partial offset Cv chamber application force upwards.
Because application valve (5) is opened, the pressure air of blast main R pipe enters C pipe, simultaneously through the stifled a(7 of C chamber contracting) enter C chamber.The application force of final C chamber, Cvz chamber will produce new balance with the application force of Cv chamber.
When the downward application force in C chamber, Cvz chamber and Cv chamber upwards thrust be able to balance or when slightly large, large form (11) also drives large valve rod (6) together to move down together with middle lamina membranacea (14), make the closely connected valve seat of application valve (5) (29), the rubber cushion of the large closely connected application valve of valve rod (6) (5), this relay valve is " service lap position ".Now, owing to only having large form (11), middle lamina membranacea (14) participation work, the delivery pressure that can obtain series braking earthen pipe (C pipe) is relatively low.
2.2, alleviate position
When the pressure air of Cv chamber is in the time that Cv pipe definite value reduces, Cv chamber application force, the downward application force in Cvz chamber upwards reduces in proportion, now, the downward application force in C chamber, Cvz chamber is much larger than Cv chamber application force upwards, impel large form (11) to drive large valve rod (6) together to move down together with middle lamina membranacea (14), make eventually the closely connected valve seat of application valve (5) (29), large valve rod (6) departs from the rubber cushion of application valve (5), the path of having opened braking earthen pipe C row atmosphere, the pressure air of C pipe, C chamber is through the EX1 mouth row atmosphere of blind nut (1).Now, this relay valve is " alleviating position ".
When being reduced to, the pressure air of C pipe, C chamber balances each other with the pressure of Cv pipe, Cv chamber, Cvz chamber or when slightly low, large form (11) drives large valve rod (6) together with middle lamina membranacea (14) one the same moving, but on the distance of moving only can make the rubber cushion of the closely connected application valve of large valve rod (6) (5), application valve (5) is still closely connected with valve seat (29).Now this relay valve is " alleviating pressurize position ".
If the pre-governor pressure of Cv pipe reduces to zero, the pressure air of C pipe, C chamber also can be alleviated to zero completely, and now relay valve is " direct release position ".
Claims (1)
1. a two ratio relay valve, it is characterized in that: connect intermediate (13) by upper valve body (9), intermediate connects lower valve body (19), between upper valve body and intermediate, there is large form (11), in the middle of intermediate and lower valve body, there is middle lamina membranacea (14), lower valve inner has endosome (16), and little template (17) is arranged at endosome bottom; Between upper valve body and intermediate, have C chamber, between intermediate and lower valve body, have Cvz chamber, the endosome bottom of lower valve body is Cx chamber;
In upper valve body, there are upper valve chamber and lower valve chamber,
Blind nut (1) is arranged at the upper valve chamber top of upper valve body, and blind nut central inner has application valve (5), and application valve has effect spring (3) outward, and between blind nut and application valve, O type circle a is arranged at top, and between blind nut and application valve, there is O type circle b at middle part;
Between the upper valve chamber of upper valve body and lower valve chamber, have ring-shaped valve seats (29), ring-shaped valve seats top coordinates with the seal ring bottom application valve;
In the middle of the stifled a of C chamber contracting, large valve rod (6) is housed, the large piston (8) of large valve rod on the indoor connection large form of C; The large form below of lower valve chamber is Cv chamber;
Large stem bottom connects the middle piston (15) of the indoor middle lamina membranacea of Cvz by intermediate bar, have release spring (12) above middle piston and between intermediate inner top; Between C chamber and Cvz chamber, there is the stifled b of Cvz chamber contracting;
In the middle of below middle piston, connect the little piston (18) in the indoor little template of Cx below lower valve inner endosome;
In lower valve body outside, conversion valve body (20) is housed, in conversion valve body, there is conversion valve pocket (21), conversion has in valve pocket and between change-over valve (22), change-over valve and conversion valve pocket, has O type circle c(24), change-over valve blind nut (27) is arranged at O type circle d (25), conversion valve body top, between change-over valve blind nut and change-over valve, there is change-over valve spring (26), between conversion valve body and conversion valve pocket, have O type circle d (25);
Between conversion valve body and conversion valve pocket, have upper and lower two ring casings, upper and lower two ring casings are sealed by three O type circle d;
The upper valve chamber of upper valve body connects R interface by internal pipeline, the lower valve chamber of upper valve body connects C interface by internal pipeline, C chamber connects Cv interface by internal pipeline, bottom, Cvz chamber connects FX2 interface by internal pipeline, bottom, Cx chamber connects d interface by internal pipeline, FX1 interface is arranged at blind nut top, and conversion valve body bottom connects F interface by internal pipeline; The upper ring casing of conversion valve body connects C interface by internal pipeline, the d interface perforation that the lower ring casing of conversion valve body is connected d interface and is connected by internal pipeline with bottom, Cx chamber by internal pipeline;
Between lower valve chamber and C chamber, have the stifled a(7 of C chamber contracting), between upper valve chamber and lower valve chamber, have the stifled b(10 of Cvz chamber contracting), have the stifled d(23 of Cx chamber contracting at d interface), in the Cv internal pipeline between intermediate and lower valve body, have the stifled c(28 of Cv pipe contracting);
Upper valve body (9), intermediate (13), lower valve body (19) are connected by bolted, and conversion valve body (20) is connected in lower valve body (19) by bolted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410151407.4A CN103921780A (en) | 2014-04-16 | 2014-04-16 | Double-proportion relay valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410151407.4A CN103921780A (en) | 2014-04-16 | 2014-04-16 | Double-proportion relay valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103921780A true CN103921780A (en) | 2014-07-16 |
Family
ID=51140251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410151407.4A Pending CN103921780A (en) | 2014-04-16 | 2014-04-16 | Double-proportion relay valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103921780A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105313917A (en) * | 2014-07-28 | 2016-02-10 | 青岛四方车辆研究所有限公司 | Double-diaphragm-plate relay valve for high-speed EMU (electric multiple unit) and urban rail vehicle |
| CN108883759A (en) * | 2016-02-10 | 2018-11-23 | 克诺尔商用车制动系统有限公司 | The relaying valve gear of pneumatic type or Electropneumatic vehicle braking device |
| CN111762142A (en) * | 2020-07-09 | 2020-10-13 | 眉山中车制动科技股份有限公司 | Relay valve capable of outputting two pressures |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2290948A (en) * | 1940-11-22 | 1942-07-28 | Westinghouse Air Brake Co | Brake control system |
| 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 |
| 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 |
| CN203844746U (en) * | 2014-04-16 | 2014-09-24 | 天津机辆轨道交通装备有限责任公司 | Dual-ratio relay valve |
-
2014
- 2014-04-16 CN CN201410151407.4A patent/CN103921780A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2290948A (en) * | 1940-11-22 | 1942-07-28 | Westinghouse Air Brake Co | Brake control system |
| 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 |
| 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 |
| CN203844746U (en) * | 2014-04-16 | 2014-09-24 | 天津机辆轨道交通装备有限责任公司 | Dual-ratio relay valve |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105313917A (en) * | 2014-07-28 | 2016-02-10 | 青岛四方车辆研究所有限公司 | Double-diaphragm-plate relay valve for high-speed EMU (electric multiple unit) and urban rail vehicle |
| CN105313917B (en) * | 2014-07-28 | 2018-02-27 | 中车青岛四方车辆研究所有限公司 | EMU and the double diaphragm plate relay valves of city rail vehicle |
| CN108883759A (en) * | 2016-02-10 | 2018-11-23 | 克诺尔商用车制动系统有限公司 | The relaying valve gear of pneumatic type or Electropneumatic vehicle braking device |
| CN108883759B (en) * | 2016-02-10 | 2021-03-12 | 克诺尔商用车制动系统有限公司 | Relay valve arrangement for a pneumatic or electropneumatic motor vehicle brake system |
| CN111762142A (en) * | 2020-07-09 | 2020-10-13 | 眉山中车制动科技股份有限公司 | Relay valve capable of outputting two pressures |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102167026B (en) | Electric control dual-chamber relay valve | |
| CN102975738B (en) | High speed train rescue conversion device | |
| CN105952698B (en) | A kind of solution-air pressurized cylinder | |
| CN103921780A (en) | Double-proportion relay valve | |
| CN204127415U (en) | High-temperature pilot-operated type safety valve | |
| CN107097770A (en) | A kind of passenger train air brake valve | |
| CN103043076A (en) | Relay valve for brake system of railway vehicle | |
| CN206826636U (en) | A kind of passenger train air brake valve | |
| CN201816583U (en) | Integrated valve with double relay valves | |
| CN202481072U (en) | Relay valve used for rail traffic vehicle through electric pneumatic braking system | |
| CN105216774B (en) | A kind of double port type electric pneumatic valves | |
| CN102114854A (en) | Distribution valve for brake system of high-speed train | |
| CN203844746U (en) | Dual-ratio relay valve | |
| CN104354690B (en) | Pressure control device of brake cylinder of rail vehicle and control method of pressure control device | |
| CN203020302U (en) | Relay valve for railway vehicle braking system | |
| CN103192816B (en) | Multichannel control pressure relay valve | |
| CN106218623B (en) | A kind of electric locomotive train tube pressure control module | |
| CN201951448U (en) | Matching relay valve | |
| CN106627542A (en) | Multi-way rubber column sealed distribution valve | |
| CN203439021U (en) | Double-pass quick release relay valve | |
| CN105501203A (en) | Multi-channel integrated type ABS (Anti-lock Braking System) rear axle braking device | |
| CN201914239U (en) | Emergency valve with common acceleration braking function | |
| CN104057976A (en) | Pressure control flow amplification valve | |
| CN205202996U (en) | Bivalve mouth formula electric pneumatic valve | |
| CN203958178U (en) | A kind of pressure control flux amplification valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140716 |