CN107097770B - Air brake valve for railway carriage - Google Patents
Air brake valve for railway carriage Download PDFInfo
- Publication number
- CN107097770B CN107097770B CN201710499228.3A CN201710499228A CN107097770B CN 107097770 B CN107097770 B CN 107097770B CN 201710499228 A CN201710499228 A CN 201710499228A CN 107097770 B CN107097770 B CN 107097770B
- Authority
- CN
- China
- Prior art keywords
- valve
- air
- pressure
- communicated
- brake
- 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.)
- Active
Links
Images
Classifications
-
- 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
- B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
- B60T15/02—Application and release valves
- B60T15/021—Railway control or brake valves
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses an air brake valve of a railway passenger car, which comprises an acting part, a working air cylinder inflation valve, a balance valve and a local reduction closing valve, wherein the acting part comprises an air supply valve, a stabilizing part and a main piston assembly. The invention controls the action of the brake valve by the pressure difference caused by the change of the pressure of the train pipe to generate the functions of inflation, braking, pressure maintaining, relieving and the like, controls the pressure of the brake cylinder by utilizing the pressure of the volume chamber, realizes that the air brake valve of the passenger car adopts a two-pressure indirect control mode, cancels the traditional slide valve structure, adopts a plunger type structure of a diaphragm plate and a stop valve, and has simpler structure and more stable and reliable operation.
Description
Technical Field
The invention mainly relates to an air brake valve of a railway passenger car.
Background
The air brake valve of the railway passenger car is a core component of a braking system of the railway passenger car, and controls the inflation, braking and relieving of the railway passenger car.
The existing brake valves for passenger cars are mainly 104 type passenger car air distribution valves (hereinafter referred to as 104 valves) and F8 type passenger car air distribution valves (hereinafter referred to as F8 valves); the 104 valve main control mechanism is a two-pressure slide valve structure; the F8 valve main control mechanism is of a three-pressure plunger structure and has convertibility of stage relief and primary relief, when the conversion cover plate of the distribution valve is arranged in the stage relief position, the conversion cover plate can be specifically compiled for use, and when the conversion cover plate of the distribution valve is arranged in the primary relief position, the conversion cover plate can be mixed with a vehicle provided with an air brake of a two-pressure mechanism for use.
The 104 valve is the main air distribution valve of the passenger train in China, and has the advantages of reliable function, convenient maintenance and the like after being applied for more than forty years and continuously improved. With the improvement of the running speed and the safety requirement of the passenger train, the operation department reflects that 104 the valve has the phenomena of accidental emergency, accidental braking, poor cleanness in the valve, natural relief, poor lubrication of a sliding valve pair and the like during the operation.
The air brake of the F8 type passenger car is identified and popularized and used by the Ministry of railways in 1989. Some problems in use are: naturally, relieve, air exhaust is more than necessary, alleviate badly.
Disclosure of Invention
The invention aims to: in order to solve the problems, the air brake valve of the railway passenger car with the plunger type structure adopting the two-pressure indirect control mode is provided.
The technical scheme of the invention is realized as follows: the utility model provides a railway carriage air brake valve, includes effect portion, work reservoir inflation valve, balanced valve, equalizing valve and local subtract shut-off valve, its characterized in that: the action part comprises an air supply valve, a stabilizing part and a main piston assembly, a cavity above the main piston assembly of the action part is communicated with a train pipe through a pipeline, a cavity below the main piston assembly is communicated with a working air cylinder, the action of the brake valve is controlled by pressure difference caused by pressure change of the train pipe, an upper cavity of the air supply valve is communicated with the working air cylinder through a pipeline, a lower cavity of the air supply valve is communicated with a volume chamber through a pipeline, the air supply valve controls the opening and closing of a passage between the working air cylinder and the volume chamber according to the pressure change of the train pipe, an upper cavity of the air supply valve is communicated with an air exhaust port, the opening and closing of the air supply valve can exhaust pressure air in the volume chamber to the atmosphere, a cavity above the main piston assembly is communicated with an auxiliary air cylinder through an auxiliary air cylinder inflation check valve, and the auxiliary air cylinder is communicated with a balance valve through a pipeline, the equalizing valve is communicated with the brake cylinder through a pipeline, the auxiliary reservoir is used as an air source to supply air to the brake cylinder through the equalizing valve, the train pipe is communicated with a cavity below the main piston assembly through a working reservoir inflation valve, the train pipe inflates air to the working reservoir, pressure changes of the train pipe and the working reservoir participate in balance, when the brake needs to be located at a braking position, an ejector rod of the equalizing valve props the main piston assembly and drives the main piston assembly to move upwards, an ejector rod of the main piston assembly props open a valve port of the stabilizing portion, a cavity above the main piston assembly is respectively communicated with the local reduction chamber and the local reduction closing valve through the valve port of the stabilizing portion, the volume chamber is communicated with the equalizing valve through a pipeline, and the equalizing valve controls the pressure of the brake cylinder according to the pressure of the volume chamber.
According to the air brake valve for the railway passenger car, a cavity above the main piston assembly is communicated with the local reduction valve through a valve port of the stabilizing part, and the local reduction valve is respectively communicated with the brake cylinder and the local reduction chamber through pipelines.
In the air brake valve for a railway passenger car according to the present invention, when the volume chamber pressure reaches 50 to 70kPa, the passage of the local reduction chamber pressure air to the brake cylinder is blocked by the local reduction valve.
The invention controls the action of the brake valve by the pressure difference caused by the change of the pressure of the train pipe to generate the functions of inflation, braking, pressure maintaining, relieving and the like, controls the pressure of the brake cylinder by utilizing the pressure of the volume chamber, realizes that the air brake valve of the passenger car adopts a two-pressure indirect control mode, cancels the traditional slide valve structure, adopts a plunger type structure of a diaphragm plate and a stop valve, and has simpler structure and more stable and reliable operation.
Drawings
Fig. 1 is a schematic structural view of the present invention.
The mark in the figure is: the device comprises a working part 1, a working air cylinder inflation valve 2, a balance valve 3, a balance valve 4, a local reduction closing valve 5, an air supply valve 6, a stabilizing part 7, a main piston assembly 8, a train pipe 9, a working air cylinder 10, a volume chamber 11, an exhaust port 12, an auxiliary air cylinder inflation check valve 13, an auxiliary air cylinder 14, a brake cylinder 15, a local reduction chamber 16 and a local reduction valve 17.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
As shown in fig. 1, an air brake valve for a railway passenger car comprises an action part 1, a working air cylinder charging valve 2, a balance valve 3, a balance valve 4 and a local reduction closing valve 5, wherein the action part 1 comprises an air supply valve 6, a stabilizing part 7 and a main piston assembly 8, a chamber above the main piston assembly 8 of the action part 1 is communicated with a train pipe 9 through a pipeline, a chamber below the main piston assembly 8 is communicated with a working air cylinder 10, the action of the brake valve is controlled through pressure difference caused by pressure change of the train pipe 9, functions of charging, braking, pressure maintaining, relieving and the like are generated, an upper chamber of the air supply valve 6 is communicated with the working air cylinder 10 through a pipeline, a lower chamber of the air supply valve 6 is communicated with a volume chamber 11 through a pipeline, the air supply valve 6 controls the opening and closing of the passages of the working air cylinder 10 and the volume chamber 11 according to the pressure change of the train pipe 9, and an upper chamber of the air supply valve 6 is communicated with an exhaust port 12, the air supply valve 6 is opened and closed to discharge the pressure air in the volume chamber 11 to the atmosphere, the chamber above the main piston assembly 8 is communicated with an auxiliary air cylinder 14 through an auxiliary air cylinder inflation check valve 13 to prevent the air of the auxiliary air cylinder from flowing back to a train pipe, the shrinkage cavity controls the inflation speed of the train pipe to the auxiliary air cylinder, the auxiliary air cylinder 14 is communicated with the equalizing valve 4 through a pipeline, the equalizing valve 4 is communicated with the brake cylinder 15 through a pipeline, the auxiliary air cylinder 14 serves as an air source and supplies air to the brake cylinder 15 through the equalizing valve 4, the train pipe 9 is communicated with the chamber below the main piston assembly 8 through the working air cylinder inflation valve 2, the train pipe 9 inflates the working air cylinder 10 at a specified inflation speed, the train pipe 9 and the pressure change of the working air cylinder 10 participate in balance, when the brake is required to be in a braking position, a mandril of the equalizing valve 3 props the main piston assembly 8 and drives the main piston assembly 8 to move upwards, the valve port of the stabilizing part 7 is pushed open by the ejector rod of the main piston assembly 8, the cavity above the main piston assembly 8 is respectively communicated with the local reduction chamber 16 and the local reduction closing valve 5 through the valve port of the stabilizing part 7, the function of the balance valve is to ensure that the brake can reach the brake position and ensure the performance of the brake pressure maintaining position when the brake needs to be in the brake position, the local reduction closing valve is to communicate the passage of the train pipe and the atmosphere at the initial stage of braking, so that the pressure of the train pipe is reduced at a higher speed, the acting part quickly enters the brake position, the volume chamber 11 is communicated with the balance valve 4 through a pipeline, and the balance valve 4 controls the pressure of the brake cylinder 15 according to the pressure of the volume chamber 11.
Wherein the upper chamber of the master piston assembly 8 communicates with a local reducing valve 17 through a valve port of the stabilizer 7, the local reducing valve 17 communicates with the brake cylinder 15 and the local reducing chamber 16 through pipes, respectively, and when the pressure in the volume chamber 11 reaches 50 to 70kPa, the local reducing valve 17 cuts off a passage through which air under the pressure in the local reducing chamber 16 is discharged to the brake cylinder 15, thereby terminating the local reducing action.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (3)
1. The utility model provides a railway carriage air brake valve, includes effect portion (1), work reservoir charging valve (2), balanced valve (3), equalizing valve (4) and local subtract shut-off valve (5), its characterized in that: the action part (1) comprises an air supply valve (6), a stabilizing part (7) and a main piston assembly (8), a cavity above the main piston assembly (8) of the action part (1) is communicated with a train pipe (9) through a pipeline, a cavity below the main piston assembly is communicated with a working air cylinder (10), the action of the brake valve is controlled by pressure difference caused by pressure change of the train pipe (9), an upper cavity of the air supply valve (6) is communicated with the working air cylinder (10) through a pipeline, a lower cavity of the air supply valve (6) is communicated with a volume chamber (11) through a pipeline, the air supply valve (6) controls opening and closing of a passage of the working air cylinder (10) and the volume chamber (11) according to pressure change of the train pipe (9), an upper cavity of the air supply valve (6) is communicated with an air exhaust port (12), opening and closing of the air supply valve (6) can exhaust pressure air of the volume chamber (11) to the atmosphere, a cavity above the main piston assembly (8) is communicated with an auxiliary air cylinder (13) through an air cylinder check valve (13), an auxiliary air cylinder (4) is communicated with a balance air cylinder (4) through a balance pipeline, and the auxiliary air cylinder (4) is communicated with a brake cylinder (4) through a balance valve (14), and a balance air supply valve (4) and a balance air source (15) is arranged as a balance air supply source (4), the train pipe (9) is communicated with a cavity below a main piston assembly (8) through a working air cylinder inflation valve (2), the train pipe (9) inflates the working air cylinder (10), pressure changes of the train pipe (9) and the working air cylinder (10) participate in balance, when the brake needs to be located at a braking position, a push rod of a balance valve (3) pushes the main piston assembly (8) and drives the main piston assembly (8) to move upwards, a push rod of the main piston assembly (8) pushes a valve port of a stabilizing part (7) open, a cavity above the main piston assembly (8) is respectively communicated with a local reduction chamber (16) and a local reduction closing valve (5) through a valve port of the stabilizing part (7), the volume chamber (11) is communicated with a balance valve (4) through a pipeline, the balance valve (4) controls the pressure of a brake cylinder (15) according to the pressure of the volume chamber (11), and the air brake valve of the passenger train is in a two-pressure indirect control mode.
2. A railway car air brake valve as claimed in claim 1, wherein: and a cavity above the main piston assembly (8) is communicated with a local reducing valve (17) through a valve port of the stabilizing part (7), and the local reducing valve (17) is respectively communicated with the brake cylinder (15) and the local reducing chamber (16) through pipelines.
3. A railway car air brake valve as claimed in claim 2, wherein: when the pressure in the volume chamber (11) reaches 50 to 70kPa, the local reduction valve (17) blocks the passage of air under pressure in the local reduction chamber (16) to the brake cylinder (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710499228.3A CN107097770B (en) | 2017-06-27 | 2017-06-27 | Air brake valve for railway carriage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710499228.3A CN107097770B (en) | 2017-06-27 | 2017-06-27 | Air brake valve for railway carriage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107097770A CN107097770A (en) | 2017-08-29 |
| CN107097770B true CN107097770B (en) | 2023-04-11 |
Family
ID=59663355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710499228.3A Active CN107097770B (en) | 2017-06-27 | 2017-06-27 | Air brake valve for railway carriage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107097770B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108238032B (en) * | 2018-03-20 | 2023-07-04 | 眉山中车制动科技股份有限公司 | Differential pressure average valve |
| CN111688657B (en) * | 2020-07-17 | 2024-02-20 | 眉山中车制动科技股份有限公司 | Stage release and direct release conversion device and method |
| CN112172771A (en) * | 2020-09-17 | 2021-01-05 | 眉山中车制动科技股份有限公司 | Air brake valve for railway carriage |
| 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 |
| CN115107727A (en) * | 2022-06-17 | 2022-09-27 | 眉山中车制动科技股份有限公司 | Train pipe local pressure reduction structure and pressure reduction method thereof |
| CN115107726B (en) * | 2022-06-20 | 2023-07-11 | 眉山中车制动科技股份有限公司 | Three-pressure brake valve for controlling air pressure fluctuation of brake cylinder |
| CN115158268B (en) * | 2022-07-04 | 2023-07-11 | 眉山中车制动科技股份有限公司 | Method for switching between stage relief and direct relief and three-pressure brake valve device |
| CN115179918B (en) * | 2022-07-12 | 2023-07-11 | 眉山中车制动科技股份有限公司 | Structure and method for precisely controlling air pressure of brake cylinder |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5358315A (en) * | 1993-04-01 | 1994-10-25 | Westinghouse Air Brake Company | Microprocessor-based electropneumatic locomotive brake control system having pneumatic backup brake control |
| CN101774376A (en) * | 2010-03-12 | 2010-07-14 | 北京南车时代机车车辆机械有限公司 | Air brake valve for locomotive and use method thereof |
| CN202987124U (en) * | 2012-11-22 | 2013-06-12 | 四川制动科技股份有限公司 | Locomotive distributing valve |
| CN205632462U (en) * | 2016-05-31 | 2016-10-12 | 眉山中车制动科技股份有限公司 | Auxiliary reservoir air inflation control device for brake valve |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3814164B2 (en) * | 2000-06-28 | 2006-08-23 | ウエスチングハウス・エヤー・ブレーキ・テクノロジーズ・コーポレイション | Method for controlling railway vehicle brakes to provide a phase release valve for a railway vehicle and a brake pressure release step |
| CN201002603Y (en) * | 2006-12-12 | 2008-01-09 | 中国南车集团眉山车辆厂 | Braking controller for railway vehicle |
| EP2261095B1 (en) * | 2009-06-11 | 2015-04-15 | Dako-CZ, a.s. | Braking device for multiple wagon vehicles, such as railway trains, kinked characteristic valve and method |
| CN201769817U (en) * | 2010-07-07 | 2011-03-23 | 南车株洲电力机车有限公司 | 109-type distributing valve |
| CN102114854B (en) * | 2011-01-21 | 2012-12-26 | 铁道部运输局 | Distribution valve for brake system of high-speed train |
| CN102923118B (en) * | 2012-11-22 | 2016-06-01 | 四川制动科技股份有限公司 | A kind of locomotive distribution valve and method of work thereof |
| US9321446B2 (en) * | 2013-09-05 | 2016-04-26 | New York Air Brake Corporation | Differential relay type brake cylinder maintaining valve |
| CN103963767B (en) * | 2014-05-13 | 2016-03-16 | 四川制动科技股份有限公司 | A kind of railway vehicle empty and load trimmer valve of balance pivot formula lever construction |
| CN105151034B (en) * | 2015-10-12 | 2017-09-15 | 眉山中车制动科技股份有限公司 | A kind of plunger type triple valve |
| CN205632461U (en) * | 2016-05-27 | 2016-10-12 | 中国铁道科学研究院 | Vehicle pneumatic braking control valve and guiding valve structure thereof |
| 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 |
| CN106671966B (en) * | 2016-09-28 | 2019-05-31 | 中国神华能源股份有限公司 | Air shut-off valve and air shut-off valve assembly |
| CN106347341B (en) * | 2016-11-16 | 2023-04-11 | 眉山中车制动科技股份有限公司 | Main control mechanism for keeping pressure of brake pressure maintaining position of distribution valve stable |
| CN206826636U (en) * | 2017-06-27 | 2018-01-02 | 眉山中车制动科技股份有限公司 | A kind of passenger train air brake valve |
-
2017
- 2017-06-27 CN CN201710499228.3A patent/CN107097770B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5358315A (en) * | 1993-04-01 | 1994-10-25 | Westinghouse Air Brake Company | Microprocessor-based electropneumatic locomotive brake control system having pneumatic backup brake control |
| CN101774376A (en) * | 2010-03-12 | 2010-07-14 | 北京南车时代机车车辆机械有限公司 | Air brake valve for locomotive and use method thereof |
| CN202987124U (en) * | 2012-11-22 | 2013-06-12 | 四川制动科技股份有限公司 | Locomotive distributing valve |
| CN205632462U (en) * | 2016-05-31 | 2016-10-12 | 眉山中车制动科技股份有限公司 | Auxiliary reservoir air inflation control device for brake valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107097770A (en) | 2017-08-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107097770B (en) | Air brake valve for railway carriage | |
| CN201002603Y (en) | Braking controller for railway vehicle | |
| CN106671966A (en) | Air control valve and air control valve assembly | |
| CN206826636U (en) | A kind of passenger train air brake valve | |
| CN112172771A (en) | Air brake valve for railway carriage | |
| CN103879394A (en) | Stopping brake system of trailer used under coal mine shaft | |
| CN205632461U (en) | Vehicle pneumatic braking control valve and guiding valve structure thereof | |
| CN201842110U (en) | Small grouped diesel multiple unit brake system | |
| CN103043076A (en) | Relay valve for brake system of railway vehicle | |
| CN202657018U (en) | Parking braking system | |
| CN203020302U (en) | Relay valve for railway vehicle braking system | |
| CN202987124U (en) | Locomotive distributing valve | |
| CN203819220U (en) | Parking brake system of trailer for underground coal mine | |
| CN201062039Y (en) | Air control valve for 120 type freight car | |
| CN106627542B (en) | Multi-channel rubber cylinder sealing distribution valve | |
| CN105365805A (en) | Pneumatic braking system capable of preventing vehicle from having malfunctions | |
| CN205168480U (en) | Commercial vehicle hill start auxiliary system air -operated controller solenoid valve | |
| CN109835319B (en) | Air system pressurization arresting gear | |
| CN203844745U (en) | Air brake valve | |
| CN106347340B (en) | Distribution valve for controlling conversion between inflation relief position and braking position of volume chamber | |
| CN204432646U (en) | A kind of passenger vehicle brake pipeline system with starting function of closing the door | |
| CN105235673B (en) | Commerial vehicle uphill starting accessory system pneumatic control magnetic valve | |
| CN204161354U (en) | Malfunctioning Pneumatic braking system prevented by vehicle | |
| CN111717233B (en) | Integrated form braking system | |
| CN203611977U (en) | Variable pressure relay valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20211202 Address after: 100844 Fuxing Road 10, Beijing, Haidian District Applicant after: China National Railway Group Co.,Ltd. Applicant after: BEIJING ZONGHENG ELECTRO-MECHANICAL TECHNOLOGY Co.,Ltd. Applicant after: MEISHAN CRRC BRAKE SCIENCE & TECHNOLOGY Co.,Ltd. Address before: 620000 No. 68, Third Road, Meishan science and Technology Industrial Park, Dongpo District, Meishan City, Sichuan Province Applicant before: MEISHAN CRRC BRAKE SCIENCE & TECHNOLOGY Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |