CN105216774A - A kind of two port type electropneumatic valve - Google Patents
A kind of two port type electropneumatic valve Download PDFInfo
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- CN105216774A CN105216774A CN201510721282.9A CN201510721282A CN105216774A CN 105216774 A CN105216774 A CN 105216774A CN 201510721282 A CN201510721282 A CN 201510721282A CN 105216774 A CN105216774 A CN 105216774A
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- valve
- control plunger
- control
- port
- valve seat
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/66—Electrical control in fluid-pressure brake systems
- B60T13/68—Electrical control in fluid-pressure brake systems by electrically-controlled valves
- B60T13/683—Electrical control in fluid-pressure brake systems by electrically-controlled valves in pneumatic systems or parts thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
- B60T13/26—Compressed-air systems
- B60T13/36—Compressed-air systems direct, i.e. brakes applied directly by compressed air
- B60T13/365—Compressed-air systems direct, i.e. brakes applied directly by compressed air for railway vehicles
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention discloses a kind of two port type electropneumatic valve, comprise valve body, upper cover is provided with in described valve body, two glue valve rod, inflation valve seat, control plunger and exhaust valve seat, described pair of glue valve rod top is placed in upper cover, in described upper cover, valve rod retracing spring is provided with between two glue valve rod and upper cover, described charge valve seat to be positioned at below upper cover and to coordinate formation control valve port A with the upper rubber spool of two glue valve rod, described control plunger is positioned at below two glue valve rod, described control plunger upper end coordinates formation control valve port B with the lower rubber spool of two glue valve rod, described exhaust valve seat is positioned at below control plunger, piston reset spring is provided with between described control plunger and exhaust valve seat.The present invention, according to the switch of the working state control bivalve mouth of braking electromagnetic valve and release electromagnetic valve, is realized graduated application and the graduated release of brake cylinder, makes brake cylinder have the function of electric control braking, alleviation, pressurize by the amplification of bivalve mouth.
Description
Technical field
The invention belongs to railroad train brake control art, particularly a kind of two port type electropneumatic valve.
Background technology
Existing railroad train mainly uses pure Pneumatic brake systems, namely utilizes brake pipe and the change of braking distributing valve airline pressure to control brake cylinder and fills air draft, realize the control for brake of railroad train.Because pure air brake is by Brake pipe pressure change Wave transmission braking information, velocity of wave is low, causes different vehicle brake synchronous poor, and train longitudinal impulse is large, cannot realize graduated application and the graduated release of train braking cylinder.
Summary of the invention
The object of the invention is to: for above-mentioned Problems existing, provide one can realize brake cylinder electric control braking, alleviation and pressure holding function, and two port type electropneumatic valves of brake cylinder graduated application and graduated release can be made.
Technical scheme of the present invention is achieved in that a kind of two port type electropneumatic valve, comprise valve body, it is characterized in that: in described valve body, be provided with upper cover, two glue valve rod, inflation valve seat, control plunger and exhaust valve seat, described pair of glue valve rod top is placed in upper cover, in described upper cover, valve rod retracing spring is provided with between two glue valve rod and upper cover, described charge valve seat to be positioned at below upper cover and to coordinate formation control valve port A with the upper rubber spool of two glue valve rod, described control plunger is positioned at below two glue valve rod, described control plunger upper end coordinates formation control valve port B with the lower rubber spool of two glue valve rod, described exhaust valve seat is positioned at below control plunger, piston reset spring is provided with between described control plunger and exhaust valve seat,
Described control valve port A in off position time, inflation valve seat upper chamber and inflation valve seat lower chamber will be divided in corresponding valve body, described control plunger will be divided into control plunger upper chamber and control plunger lower chamber in corresponding valve body, described control valve port B is when open mode, described inflation valve seat lower chamber is communicated with the exhausr port on exhaust valve seat by the central through hole of control plunger, described valve body is provided with and the path A inflating valve seat upper chamber and be communicated with, the path B be communicated with inflation valve seat lower chamber, the path C be communicated with control plunger upper chamber and the path D be communicated with control plunger lower chamber, described path A is communicated with auxiliary reservoir, described path B is communicated with brake cylinder, described path C is communicated with auxiliary reservoir by release electromagnetic valve, described path D is communicated with auxiliary reservoir by braking electromagnetic valve.
Of the present invention pair of port type electropneumatic valve, it is provided with pressure sensor in the gas circuit being communicated with described brake cylinder and path B.
Of the present invention pair of port type electropneumatic valve, it is in described valve body, be provided with dust-proof cushion below exhaust valve seat.
Of the present invention pair of port type electropneumatic valve, it is when electropneumatic valve is in retarder location, described braking electromagnetic valve is in obtain electricity condition, the pressure air of auxiliary reservoir enters control plunger lower chamber and successively by control plunger jack-up after braking electromagnetic valve and path D, described control plunger drives on two glue valve rod and moves, control valve port A to open, described inflation valve seat upper chamber is communicated with inflation valve seat lower chamber by the control valve port A opened, and controls valve port B and is in closed condition;
When electropneumatic valve is in alleviation position, described release electromagnetic valve is in obtain electricity condition, the pressure air of auxiliary reservoir enters control plunger upper chamber successively and is depressed by control plunger after release electromagnetic valve and path C, described control plunger upper end is thrown off with the lower rubber spool of two glue valve rod, control valve port B to open, described inflation valve seat lower chamber is communicated with the central through hole of control plunger by the control valve port B opened, and the pressure air of brake cylinder enters air by the exhausr port on exhaust valve seat;
When electropneumatic valve is in pressurize position, described release electromagnetic valve and braking electromagnetic valve are all in power failure state, pressure air in described control plunger upper chamber and control plunger lower chamber is all discharged to air, described control valve port A and control valve port B and be all in closed condition respectively under the effect of corresponding retracing spring and auxiliary reservoir pressure, brake cylinder no longer fills wind or exhaust, and brake cylinder internal pressure is in stabilized conditions.
The present invention, according to the switch of the working state control bivalve mouth of braking electromagnetic valve and release electromagnetic valve, is realized graduated application and the graduated release of brake cylinder, makes brake cylinder have the function of electric control braking, alleviation, pressurize by the amplification of bivalve mouth.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of the present invention when being in retarder location.
Fig. 3 is the structural representation that the present invention is in when alleviating position.
Fig. 4 is the structural representation of the present invention when being in pressurize position.
Mark in figure: 1 is valve body, 2 is upper cover, 3 is two glue valve rods, 3a is upper rubber spool, 3b is lower rubber spool, 4 is inflation valve seat, 5 is control plunger, 6 is exhaust valve seat, 7 is valve rod retracing spring, 8 for controlling valve port A, 9 for controlling valve port B, 10 is piston reset spring, 11a is inflation valve seat upper chamber, 11b is inflation valve seat lower chamber, 11c is control plunger upper chamber, 11d is control plunger lower chamber, 12a is path A, 12b is path B, 12c is path C, 12d is path D, 13 is auxiliary reservoir, 14 is brake cylinder, 15 is release electromagnetic valve, 16 is braking electromagnetic valve, 17 is pressure sensor, 18 is dust-proof cushion, through hole centered by 19.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in detail.
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
As Figure 1-4, a kind of two port type electropneumatic valve, comprise valve body 1, upper cover 2 is provided with in described valve body 1, two glue valve rod 3, inflation valve seat 4, control plunger 5 and exhaust valve seat 6, described pair of glue valve rod 3 top is placed in upper cover 2, in described upper cover 2, valve rod retracing spring 7 is provided with between two glue valve rod 3 and upper cover 2, described inflation valve seat 4 is positioned at below upper cover 2 and with the upper rubber spool 3a of two glue valve rod 3 and coordinates formation control valve port A8, described control plunger 5 is positioned at below two glue valve rod 3, described control plunger 5 upper end coordinates formation control valve port B9 with the lower rubber spool 3b of two glue valve rod 3, described exhaust valve seat 6 is positioned at below control plunger 5, piston reset spring 10 is provided with between described control plunger 5 and exhaust valve seat 6, in described valve body 1, dust-proof cushion 18 is provided with below exhaust valve seat 6.
Wherein, described control valve port A8 in off position time, inflation valve seat upper chamber 11a and inflation valve seat lower chamber 11b will be divided in corresponding valve body 1, described control plunger 5 is divided into control plunger upper chamber 11c and control plunger lower chamber 11d by corresponding valve body 1, described control valve port B9 is when open mode, described inflation valve seat lower chamber 11b is communicated with the exhausr port on exhaust valve seat 6 by the central through hole 19 of control plunger 5, described valve body 1 is provided with and the path A12a inflating valve seat upper chamber 11a and be communicated with, the path B12b be communicated with inflation valve seat lower chamber 11b, the path C12c be communicated with control plunger upper chamber 11c and the path D12d be communicated with control plunger lower chamber 11d, described path A12a is communicated with auxiliary reservoir 13, described path B12b is communicated with brake cylinder 14, described path C12c is communicated with auxiliary reservoir 13 by release electromagnetic valve 15, described path D12d is communicated with auxiliary reservoir 13 by braking electromagnetic valve 16, the gas circuit being communicated with described brake cylinder 14 and path B12b is provided with pressure sensor 17, according to the switch of the working state control bivalve mouth of braking electromagnetic valve and release electromagnetic valve, by the pressure sensor on the amplification of bivalve mouth and brake cylinder, accurate control brake-cylinder pressure, realize graduated application and the graduated release of brake cylinder.
As shown in Figure 2, when electropneumatic valve is in retarder location, described braking electromagnetic valve 16 is in obtain electricity condition, the pressure air of auxiliary reservoir 13 enters control plunger lower chamber 11d and successively by control plunger 5 jack-up after braking electromagnetic valve 16 and path D12d, described control plunger 5 drives on two glue valve rod 3 and moves, control valve port A8 to open, described inflation valve seat upper chamber 11a is communicated with inflation valve seat lower chamber 11b by the control valve port A8 opened, control valve port B9 and be in closed condition, auxiliary reservoir pressure air enters brake cylinder by path A and the control valve port A opened.
As shown in Figure 3, when electropneumatic valve is in alleviation position, described release electromagnetic valve 15 is in obtain electricity condition, the pressure air of auxiliary reservoir 13 enters control plunger upper chamber 11c successively and is depressed by control plunger 5 after release electromagnetic valve 15 and path C12c, described control plunger 5 upper end is thrown off with the lower rubber spool 3b of two glue valve rod 3, control valve port B9 to open, described inflation valve seat lower chamber 11b is communicated with the central through hole 19 of control plunger 5 by the control valve port B9 opened, the pressure air of brake cylinder 14 is by path B and the control valve port B opened, central through hole through control plunger enters air by the exhausr port on exhaust valve seat 6.
As shown in Figure 4, when electropneumatic valve is in pressurize position, described release electromagnetic valve 15 and braking electromagnetic valve 16 are all in power failure state, pressure air in described control plunger upper chamber 11c and control plunger lower chamber 11d is all discharged to air, described control valve port A8 and control valve port B9 and be all in closed condition respectively under the effect of corresponding retracing spring and auxiliary reservoir pressure, brake cylinder 14 no longer fills wind or exhaust, and brake cylinder 14 internal pressure is in stabilized conditions.When the pressure sensor of brake cylinder detects that brake-cylinder pressure departs from expected value because sewing, braking electromagnetic valve or release electromagnetic valve can as required electric and open respective channels, make that brake-cylinder pressure is stable remains on control objectives value.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. a two port type electropneumatic valve, comprise valve body (1), it is characterized in that: in described valve body (1), be provided with upper cover (2), two glue valve rod (3), inflation valve seat (4), control plunger (5) and exhaust valve seat (6), described pair of glue valve rod (3) top is placed in upper cover (2), in described upper cover (2), valve rod retracing spring (7) is provided with between two glue valve rod (3) and upper cover (2), described inflation valve seat (4) is positioned at upper cover (2) below and coordinates formation control valve port A(8 with the upper rubber spool (3a) of two glue valve rod (3)), described control plunger (5) is positioned at two glue valve rod (3) below, described control plunger (5) upper end coordinates formation control valve port B(9 with the lower rubber spool (3b) of two glue valve rod (3)), described exhaust valve seat (6) is positioned at control plunger (5) below, piston reset spring (10) is provided with between described control plunger (5) and exhaust valve seat (6),
Described control valve port A(8) in off position time, inflation valve seat upper chamber (11a) and inflation valve seat lower chamber (11b) will be divided in corresponding valve body (1), described control plunger (5) will be divided into control plunger upper chamber (11c) and control plunger lower chamber (11d) in corresponding valve body (1), described control valve port B(9) when open mode, described inflation valve seat lower chamber (11b) is communicated with the exhausr port on exhaust valve seat (6) by the central through hole (19) of control plunger (5), described valve body (1) is provided with and the path A(12a inflating valve seat upper chamber (11a) and be communicated with), the path B(12b be communicated with inflation valve seat lower chamber (11b)), the path C(12c be communicated with control plunger upper chamber (11c)) and the path D(12d that is communicated with control plunger lower chamber (11d)), described path A(12a) be communicated with auxiliary reservoir (13), described path B(12b) be communicated with brake cylinder (14), described path C(12c) be communicated with auxiliary reservoir (13) by release electromagnetic valve (15), described path D(12d) be communicated with auxiliary reservoir (13) by braking electromagnetic valve (16).
2. according to claim 1 pair of port type electropneumatic valve, is characterized in that: be communicated with described brake cylinder (14) with path B(12b) gas circuit on be provided with pressure sensor (17).
3. according to claim 1 pair of port type electropneumatic valve, is characterized in that: in described valve body (1), below exhaust valve seat (6), be provided with dust-proof cushion (18).
4. according to claim 1, two port type electropneumatic valves described in 2 or 3, it is characterized in that: when electropneumatic valve is in retarder location, described braking electromagnetic valve (16) is in obtain electricity condition, the pressure air of auxiliary reservoir (13) is successively through braking electromagnetic valve (16) and path D(12d) after enter control plunger lower chamber (11d) and by control plunger (5) jack-up, described control plunger (5) drives on two glue valve rod (3) and moves, control valve port A(8) open, the control valve port A(8 of described inflation valve seat upper chamber (11a) by opening) be communicated with inflation valve seat lower chamber (11b), control valve port B(9) be in closed condition,
When electropneumatic valve is in alleviation position, described release electromagnetic valve (15) is in obtain electricity condition, the pressure air of auxiliary reservoir (13) is successively through release electromagnetic valve (15) and path C(12c) after enter control plunger upper chamber (11c) and control plunger (5) depressed, described control plunger (5) upper end is thrown off with the lower rubber spool (3b) of two glue valve rod (3), control valve port B(9) open, the control valve port B(9 of described inflation valve seat lower chamber (11b) by opening) be communicated with the central through hole (19) of control plunger (5), the pressure air of brake cylinder (14) enters air by the exhausr port on exhaust valve seat (6),
When electropneumatic valve is in pressurize position, described release electromagnetic valve (15) and braking electromagnetic valve (16) are all in power failure state, pressure air in described control plunger upper chamber (11c) and control plunger lower chamber (11d) is all discharged to air, described control valve port A(8) and control valve port B(9) under the effect of corresponding retracing spring and auxiliary reservoir pressure, be all in closed condition respectively, brake cylinder (14) no longer fills wind or exhaust, and brake cylinder (14) internal pressure is in stabilized conditions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510721282.9A CN105216774B (en) | 2015-10-30 | 2015-10-30 | A kind of double port type electric pneumatic valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510721282.9A CN105216774B (en) | 2015-10-30 | 2015-10-30 | A kind of double port type electric pneumatic valves |
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| CN105216774A true CN105216774A (en) | 2016-01-06 |
| CN105216774B CN105216774B (en) | 2017-12-05 |
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| CN201510721282.9A Active CN105216774B (en) | 2015-10-30 | 2015-10-30 | A kind of double port type electric pneumatic valves |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105905088A (en) * | 2016-05-31 | 2016-08-31 | 眉山中车制动科技股份有限公司 | Auxiliary reservoir inflation control device for brake valve |
| CN106347341A (en) * | 2016-11-16 | 2017-01-25 | 眉山中车制动科技股份有限公司 | Main control mechanism for maintaining pressure of distribution valve stable when distributionvalve brakes pressure-holding position |
| CN113428187A (en) * | 2021-06-30 | 2021-09-24 | 眉山中车制动科技股份有限公司 | System and method for improving release performance of heavy-duty train |
| CN113911093A (en) * | 2021-10-28 | 2022-01-11 | 眉山中车制动科技股份有限公司 | Relay valve jumping mechanism |
| CN115214579A (en) * | 2022-07-15 | 2022-10-21 | 眉山中车制动科技股份有限公司 | Railway vehicle braking pressure limiting valve |
| WO2023070416A1 (en) * | 2021-10-28 | 2023-05-04 | 眉山中车制动科技股份有限公司 | Relay valve |
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| CN201882072U (en) * | 2010-12-08 | 2011-06-29 | 中国铁道科学研究院机车车辆研究所 | Electro-pneumatic braking system |
| 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 |
| CN102923118A (en) * | 2012-11-22 | 2013-02-13 | 四川制动科技股份有限公司 | Locomotive distribution valve and working method thereof |
| CN103043076A (en) * | 2012-12-24 | 2013-04-17 | 青岛四方车辆研究所有限公司 | Relay valve for brake system of railway vehicle |
| CN205202996U (en) * | 2015-10-30 | 2016-05-04 | 四川制动科技股份有限公司 | Bivalve mouth formula electric pneumatic valve |
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2015
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201882072U (en) * | 2010-12-08 | 2011-06-29 | 中国铁道科学研究院机车车辆研究所 | Electro-pneumatic braking system |
| 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 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105905088A (en) * | 2016-05-31 | 2016-08-31 | 眉山中车制动科技股份有限公司 | Auxiliary reservoir inflation control device for brake valve |
| CN105905088B (en) * | 2016-05-31 | 2018-07-13 | 眉山中车制动科技股份有限公司 | A kind of brake valve auxiliary reservoir aeration control device |
| CN106347341A (en) * | 2016-11-16 | 2017-01-25 | 眉山中车制动科技股份有限公司 | Main control mechanism for maintaining pressure of distribution valve stable when distributionvalve brakes pressure-holding position |
| CN113428187A (en) * | 2021-06-30 | 2021-09-24 | 眉山中车制动科技股份有限公司 | System and method for improving release performance of heavy-duty train |
| CN113911093A (en) * | 2021-10-28 | 2022-01-11 | 眉山中车制动科技股份有限公司 | Relay valve jumping mechanism |
| WO2023070416A1 (en) * | 2021-10-28 | 2023-05-04 | 眉山中车制动科技股份有限公司 | Relay valve |
| CN115214579A (en) * | 2022-07-15 | 2022-10-21 | 眉山中车制动科技股份有限公司 | Railway vehicle braking pressure limiting valve |
| CN115214579B (en) * | 2022-07-15 | 2023-10-13 | 眉山中车制动科技股份有限公司 | Brake pressure limiting valve for railway vehicle |
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| CN105216774B (en) | 2017-12-05 |
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Address after: Three road 620010 Meishan province Sichuan City Dongpo District of Meishan science and Technology Industrial Park No. 68 Applicant after: Meisha Zhongke Brake Technology Co., Ltd. Applicant after: CRRC INDUSTRIAL RESEARCH INSTITUTE CO., LTD. Address before: Three road 620010 Meishan province Sichuan City Dongpo District of Meishan science and Technology Industrial Park No. 68 Applicant before: Meisha Zhongke Brake Technology Co., Ltd. Applicant before: CSR INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE CO., LTD. |
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