CN104057975A - Pressure regulating valve for rail transit - Google Patents
Pressure regulating valve for rail transit Download PDFInfo
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- CN104057975A CN104057975A CN201410329867.1A CN201410329867A CN104057975A CN 104057975 A CN104057975 A CN 104057975A CN 201410329867 A CN201410329867 A CN 201410329867A CN 104057975 A CN104057975 A CN 104057975A
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- valve
- exhaust valve
- valve body
- iron core
- exhaust
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Abstract
The invention discloses a pressure regulating valve for rail transit. An electromagnetic coil assembly is located between a gas supply valve body and an exhaust valve body. The gas supply valve body and the exhaust valve body are connected through fastening bolts. The electromagnetic coil assembly is composed of two coils. The two coils control the action of a maintaining valve movable iron core and the action of an exhaust valve movable iron core respectively. A cylindrical channel is arranged in each coil. A maintaining valve static iron core and an exhaust valve static iron core are mounted in each cylindrical channel. The two ends of each cylindrical channel are fixed to the gas supply valve body and the exhaust valve body respectively in a contacting mode. The maintaining valve movable iron core and the exhaust valve movable iron core press a valve seat of the gas supply valve body and a valve seat of the exhaust valve body through a maintaining valve return spring and an exhaust valve return spring respectively to achieve sealing. The pressure regulating valve has the advantages that the response is fast, the flow is large, and gas pressure can be adjusted according to an electric signal instruction to reach required braking pressure. The pressure regulating valve is compact in structure, high in reliability and good in low-temperature sealing performance.
Description
Technical field
The present invention relates to field of track traffic, particularly a kind of pressure-modulation valve for track traffic.
Background technology
In current track traffic brake system, the pressure airs that adopt as the propulsion source of braking more.Brake system is according to required brake-pressures of calculation of parameter such as the speed of train and quality, and then control presssure control apparatus is exported required brake-pressure.Pressure when brake system requires to realize fast speed braking response and sliding state regulates, inflation, pressurize and three kinds of braking modes of exhaust while guaranteeing braking.Common direct-acting electromagnetic valve is restricting aspect flow and response time two mutually at present, cannot meet large flow and the requirement of response fast simultaneously; Mechanical type pressing force regulating valve can meet large flow, but cannot realize quick response.
In track traffic brake system, large flow, response and low temperature are suitable for and adopt the pressure-modulation valve of integral type fast, and domestic temporary nothing is applicable without mature technology finished product.Patented product of the present invention adopts the structure of guide's membrane combination electromagnetic valve, realize high-speed response action and carry out the pressure adjusting of control system, and its equivalent flow latus rectum surpasses φ 7mm, action response time reaches in 15ms, can realize inflation, exhaust and three kinds of operating states of pressurize simultaneously, realize the adjusting of required pressure, can adopt PWM electric signal to control, regulate efficiency high.
Summary of the invention
For problems of the prior art, the object of the present invention is to provide a kind of feature with quick response, large flow, can according to electric signal instruction, realize the adjusting of gaseous tension, reach required brake-pressure.Compact conformation, reliability are strong, the pressure-modulation valve that low temperature sealing is good.
In order to achieve the above object, the present invention is by the following technical solutions: a kind of pressure-modulation valve for track traffic, comprise air feed valve body, electromagnetic coil assembly, exhaust valve, keep valve actuation unshakable in one's determination, hold-off valve fixed core, blow off valve fixed core, exhaust valve actuation is unshakable in one's determination, exhaust valve diaphragm, hold-off valve diaphragm and gas channels, described electromagnetic coil assembly is between air feed valve body and exhaust valve, described air feed valve body is connected by binding bolt with exhaust valve, described electromagnetic coil assembly is comprised of two coils, two coils in described coil assemblies of solenoid valves obtain moving axially of electric and dead electricity realization maintenance valve actuation iron core and exhaust valve actuation iron core, thereby realize conducting and the cut-out of guide's gas circuit, two described coils are controlled respectively the action that keeps valve actuation iron core and exhaust valve actuation iron core, in described coil, be provided with columniform passage, described cylindrical channel is provided with hold-off valve fixed core and blow off valve fixed core, described cylindrical channel two ends contact respectively fixing with exhaust valve with air feed valve body, described maintenance valve actuation is unshakable in one's determination and exhaust valve actuation iron core lays respectively at hold-off valve fixed core and blow off valve fixed core is inner also moves vertically, unshakable in one's determination and the exhaust valve actuation iron core of described maintenance valve actuation is pressed on the valve seat of air feed valve body and exhaust valve and is realized and sealing by hold-off valve returning spring and blow off valve returning spring respectively.
On described air feed valve body, by bolted, there is cover assembly, in the groove of described cover assembly and the fastening rear formation of air feed valve body, be fixed with exhaust valve diaphragm and realize sealing.Described exhaust valve diaphragm is round rubber parts, the exhaust valve diaphragm spring that described exhaust valve diaphragm center is fixed on cover assembly by one end is pressed on the valve port of air feed valve body and realizes sealing, and described exhaust valve actuation iron core vertically mobile compression exhaust valve returning spring is opened guide's gas circuit.
On described air feed valve body, by bolted, there is lower cap assemblies, in the groove of described lower cap assemblies and the fastening rear formation of air feed valve body, be fixed with hold-off valve diaphragm and realize sealing.Described hold-off valve diaphragm is round rubber parts, and the hold-off valve diaphragm spring that the center of described hold-off valve diaphragm is fixed on lower cap assemblies by one end is pressed on another valve port of air feed valve body and realizes sealing.
Adopt after technique scheme, the present invention has following beneficial effect:
1. adopt combined electromagnetic valve arrangement, thereby can reduce the cost of product.Requirement realizes inflation, maintenance and three kinds of states of exhaust, and traditional approach is controlled for adopting two 2/2-way electromagnetic valves to realize, and patented product of the present invention has adopted knockdown electromagnetic valve structure, can reduce technical costs, and structure is compacter.
2. improve control efficiency and action response.Adopt pilot-operated type structure, can actv. improve the response time of system, safety action is reliable simultaneously.Can adopt PWM to drive signal to control, can further improve action response, thereby improve the control efficiency of integral stop system.
3. reduce the requirement to elastomeric material.Adopt pilot-operated type structure, by air pressure, guarantee the sealing load of diaphragm, improved sealing effectiveness, particularly under cryogenic conditions, can improve the sealing effectiveness of diaphragm valve port by actv., thereby require low compared with ordinary straight type solenoid valve to the low-temperature characteristics of the elastomeric material of diaphragm.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention.
Fig. 2 is integral structure schematic diagram of the present invention.
Fig. 3 is the A-A cutaway view of Fig. 2.
Fig. 4 is the B-B cutaway view of Fig. 2.
Fig. 5 is the structural representation of hold-off valve diaphragm and exhaust valve diaphragm.
In figure: 1, air feed valve body 2, hold-off valve returning spring 3, maintenance valve actuation iron core 4, electromagnetic coil assembly 5, hold-off valve fixed core 6, exhaust valve 7, blow off valve returning spring 8, exhaust valve actuation iron core 9, blow off valve fixed core 10, cover assembly 11, exhaust valve diaphragm spring 12, exhaust valve diaphragm 13, lower cap assemblies 14, hold-off valve diaphragm spring 15, hold-off valve diaphragm 16, folder cloth 17, rubber layer 18, metallic support
19, admission port 20, exhausr port 21, air extractor duct.
The specific embodiment
According to Figure of description and specific embodiment, the present invention is further explained below.
As shown in Figure 1, during inflated condition, two electromagnetic valve coils all must not be electric, and now pressure air can output to air extractor duct 21 by the admission port 19 of pressure-modulation valve;
During packing state, control the coil electricity that keeps the action of valve actuation iron core, another coil no power, now cuts off the admission port of pressure-modulation valve 19 terminal pressures and air extractor duct 21 terminal pressures, realizes the maintenance of pressure;
During exhaust condition, control the coil electricity of exhaust valve actuation iron core, another coil also electric, now the pressure of pressure-modulation valve air extractor duct 21 ends is discharged by exhausr port 20, simultaneously and admission port 19 terminal pressure air cut-outs.
Hold-off valve diaphragm 15 and exhaust valve diaphragm 12, in order to realize the good seal performance of low temperature, increase sealing flanged structure on the basis of traditional diaphragm, can reduce the requirement to elastomeric material like this, also can realize the sealing property of low temperature.
As shown in Figures 2 and 3, a kind of pressure-modulation valve for track traffic, comprise air feed valve body 1, electromagnetic coil assembly 4, exhaust valve 6, keep valve actuation iron core 3, hold-off valve fixed core 5, blow off valve fixed core 9, exhaust valve actuation iron core 8, exhaust valve diaphragm 12, hold-off valve diaphragm 15 and gas channels, described electromagnetic coil assembly 4 is between air feed valve body 1 and exhaust valve 6, described air feed valve body 1 is connected by binding bolt with exhaust valve 6, described electromagnetic coil assembly 4 is comprised of two coils, two coils in described coil assemblies of solenoid valves obtain moving axially of electric and dead electricity realization maintenance valve actuation unshakable in one's determination 3 and exhaust valve actuation iron core 8, thereby realize conducting and the cut-out of guide's gas circuit, two described coils are controlled respectively the action that keeps valve actuation iron core and exhaust valve actuation iron core, in described coil, be provided with columniform passage, described cylindrical channel is provided with hold-off valve fixed core 5 and blow off valve fixed core 9, described cylindrical channel two ends contact respectively fixing with exhaust valve 6 with air feed valve body 1, described maintenance valve actuation unshakable in one's determination 3 and exhaust valve actuation iron core 8 lay respectively at hold-off valve fixed core 5 and blow off valve fixed core 9 inside and move vertically, described maintenance valve actuation unshakable in one's determination 3 and exhaust valve actuation iron core 8 are pressed on the valve seat of air feed valve body 1 and exhaust valve 6 and are realized sealing by hold-off valve returning spring 2 and blow off valve returning spring 7 respectively.
As shown in Figure 4, on described air feed valve body 1, by bolted, there is cover assembly 10, in the groove of described cover assembly 10 and the 1 fastening rear formation of air feed valve body, be fixed with exhaust valve diaphragm 12 and realize sealing.Described exhaust valve diaphragm 12 is round rubber parts, exhaust valve diaphragm 12 springs 11 that described exhaust valve diaphragm 12 centers are fixed on cover assembly 10 by one end are pressed on the valve port of air feed valve body 1 and realize sealing, and described exhaust valve actuation iron core vertically mobile compression exhaust valve returning spring 7 is opened guide's gas circuit.Gas in cavity volume between exhaust valve diaphragm 12 and cover assembly 10 is discharged, and exhaust valve diaphragm 12 is promoted by air extractor duct 21 terminal pressures, leaves valve port, and the gas of pressure-modulation valve rear end is discharged air extractor duct 21 pressure airs by the valve port of opening.On described air feed valve body 1, by bolted, there is lower cap assemblies 13, in the groove of described lower cap assemblies 13 and the 1 fastening rear formation of air feed valve body, be fixed with hold-off valve diaphragm 15 and realize sealing.Described hold-off valve diaphragm 15 is round rubber parts, and hold-off valve diaphragm 15 springs 14 that described hold-off valve diaphragm 15 center is fixed on lower cap assemblies 13 by one end are pressed on another valve port of air feed valve body 1 and realize sealing.During hold-off valve coil losing electricity, pressure air can be input to from the import of pressure-gradient control valve air extractor duct 21.Hold-off valve coil obtains when electric, keep valve actuation iron core mobile compression hold-off valve returning spring 2 vertically, open guide's gas circuit, pilot gas is input between hold-off valve diaphragm 15 and lower cap assemblies 13 in cavity volume, hold-off valve diaphragm 15 is pressed onto on valve seat, thus the pressure port of cut-off pressure control cock admission port 19 ends and air extractor duct 21 ends.
Blow off valve returning spring 7 and hold-off valve returning spring 2 power values are less, can realize fast speed break-make by electromagnetic valve power, thereby can realize the control requirement of high response; Exhaust valve diaphragm 12 and hold-off valve diaphragm 15 form larger circulation bore, can meet the requirement of large flow.
As shown in Figure 5, hold-off valve diaphragm 15 and exhaust valve diaphragm 12 belong to metal vulcanization member.Comprise folder cloth 16,18 of metallic support and rubber layer 17.By increasing diaphragm flange, actv. improves the airtight effect of whole valve, guarantees low temperature applicability.
Claims (5)
1. the pressure-modulation valve for track traffic, comprise air feed valve body, electromagnetic coil assembly, exhaust valve, keep valve actuation unshakable in one's determination, hold-off valve fixed core, blow off valve fixed core, exhaust valve actuation is unshakable in one's determination, exhaust valve diaphragm, hold-off valve diaphragm and gas channels, it is characterized in that described electromagnetic coil assembly is between air feed valve body and exhaust valve, described air feed valve body is connected by binding bolt with exhaust valve, described electromagnetic coil assembly is comprised of two coils, two coils in described coil assemblies of solenoid valves obtain moving axially of electric and dead electricity realization maintenance valve actuation iron core and exhaust valve actuation iron core, thereby realize conducting and the cut-out of guide's gas circuit, two described coils are controlled respectively the action that keeps valve actuation iron core and exhaust valve actuation iron core, in described coil, be provided with columniform passage, described cylindrical channel is provided with hold-off valve fixed core and blow off valve fixed core, described cylindrical channel two ends contact respectively fixing with exhaust valve with air feed valve body, described maintenance valve actuation is unshakable in one's determination and exhaust valve actuation iron core lays respectively at hold-off valve fixed core and blow off valve fixed core is inner also moves vertically, unshakable in one's determination and the exhaust valve actuation iron core of described maintenance valve actuation is pressed on the valve seat of air feed valve body and exhaust valve and is realized and sealing by hold-off valve returning spring and blow off valve returning spring respectively.
2. a kind of pressure-modulation valve for track traffic according to claim 1, it is characterized in that by bolted, having cover assembly on described air feed valve body, in the groove of described cover assembly and the fastening rear formation of air feed valve body, be fixed with exhaust valve diaphragm and realize sealing.
3. a kind of pressure-modulation valve for track traffic according to claim 2, it is characterized in that described exhaust valve diaphragm is round rubber parts, the exhaust valve diaphragm spring that described exhaust valve diaphragm center is fixed on cover assembly by one end is pressed on the valve port of air feed valve body and realizes sealing, and described exhaust valve actuation iron core vertically mobile compression exhaust valve returning spring is opened guide's gas circuit.
4. a kind of pressure-modulation valve for track traffic according to claim 3, it is characterized in that by bolted, having lower cap assemblies on described air feed valve body, in the groove of described lower cap assemblies and the fastening rear formation of air feed valve body, be fixed with hold-off valve diaphragm and realize sealing.
5. a kind of pressure-modulation valve for track traffic according to claim 4, it is characterized in that described hold-off valve diaphragm is round rubber parts, the hold-off valve diaphragm spring that the center of described hold-off valve diaphragm is fixed on lower cap assemblies by one end is pressed on another valve port of air feed valve body and realizes sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410329867.1A CN104057975A (en) | 2014-07-11 | 2014-07-11 | Pressure regulating valve for rail transit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410329867.1A CN104057975A (en) | 2014-07-11 | 2014-07-11 | Pressure regulating valve for rail transit |
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| Publication Number | Publication Date |
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| CN104057975A true CN104057975A (en) | 2014-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410329867.1A Pending CN104057975A (en) | 2014-07-11 | 2014-07-11 | Pressure regulating valve for rail transit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782289A (en) * | 2014-12-22 | 2016-07-20 | 林会明 | Integrated control valve for hydrodynamic retarder and control method |
| CN107074229A (en) * | 2014-10-24 | 2017-08-18 | 纽约气闸有限公司 | Valve is kept with improved pressure controlled checking cylinder |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4773447A (en) * | 1986-06-25 | 1988-09-27 | Nippon Air Brake Co., Ltd. | Electromagnetic valve |
| CN2799340Y (en) * | 2005-05-27 | 2006-07-26 | 烟台未来自动装备有限责任公司 | Air-exhausting valve for brake system |
| CN201021274Y (en) * | 2006-12-22 | 2008-02-13 | 钟奋强 | Single channel pressure regulator |
| CN201410947Y (en) * | 2009-05-21 | 2010-02-24 | 吴金富 | Automobile pressure regulating control valve |
| CN101890950A (en) * | 2009-05-21 | 2010-11-24 | 吴金富 | Air pressure adjusting control valve for automobile |
| CN102114853A (en) * | 2011-01-21 | 2011-07-06 | 铁道部运输局 | Antiskid blow down valve for braking system of high-speed train |
| CN102673603A (en) * | 2012-05-24 | 2012-09-19 | 西南交通大学 | Anti-skidding exhaust valve |
| CN203958177U (en) * | 2014-07-11 | 2014-11-26 | 南京浦镇海泰制动设备有限公司 | A kind of pressure-modulation valve for track traffic |
-
2014
- 2014-07-11 CN CN201410329867.1A patent/CN104057975A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4773447A (en) * | 1986-06-25 | 1988-09-27 | Nippon Air Brake Co., Ltd. | Electromagnetic valve |
| CN2799340Y (en) * | 2005-05-27 | 2006-07-26 | 烟台未来自动装备有限责任公司 | Air-exhausting valve for brake system |
| CN201021274Y (en) * | 2006-12-22 | 2008-02-13 | 钟奋强 | Single channel pressure regulator |
| CN201410947Y (en) * | 2009-05-21 | 2010-02-24 | 吴金富 | Automobile pressure regulating control valve |
| CN101890950A (en) * | 2009-05-21 | 2010-11-24 | 吴金富 | Air pressure adjusting control valve for automobile |
| CN102114853A (en) * | 2011-01-21 | 2011-07-06 | 铁道部运输局 | Antiskid blow down valve for braking system of high-speed train |
| CN102673603A (en) * | 2012-05-24 | 2012-09-19 | 西南交通大学 | Anti-skidding exhaust valve |
| CN203958177U (en) * | 2014-07-11 | 2014-11-26 | 南京浦镇海泰制动设备有限公司 | A kind of pressure-modulation valve for track traffic |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107074229A (en) * | 2014-10-24 | 2017-08-18 | 纽约气闸有限公司 | Valve is kept with improved pressure controlled checking cylinder |
| CN107074229B (en) * | 2014-10-24 | 2019-01-29 | 纽约气闸有限公司 | Valve is kept with improved pressure controlled checking cylinder |
| CN105782289A (en) * | 2014-12-22 | 2016-07-20 | 林会明 | Integrated control valve for hydrodynamic retarder and control method |
| CN105782289B (en) * | 2014-12-22 | 2018-09-14 | 林会明 | Integrated control valve and control method for Retarder |
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| CB02 | Change of applicant information |
Address after: 211800 Nanjing City, Pukou Province Economic Development Zone, Jiangsu Road, No. 10 Applicant after: Nanjing Zhongche town Haitai Brake Equipment Co Ltd Address before: 211800 Nanjing City, Pukou Province Economic Development Zone, Jiangsu Road, No. 10 Applicant before: Nanjing Puzhen Haitai Brake Equipment Co., Ltd. |
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| COR | Change of bibliographic data | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140924 |
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| RJ01 | Rejection of invention patent application after publication |