CN114179848B - Air brake for railway vehicle braking - Google Patents
Air brake for railway vehicle braking Download PDFInfo
- Publication number
- CN114179848B CN114179848B CN202111555750.1A CN202111555750A CN114179848B CN 114179848 B CN114179848 B CN 114179848B CN 202111555750 A CN202111555750 A CN 202111555750A CN 114179848 B CN114179848 B CN 114179848B
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- Prior art keywords
- air
- valve
- brake
- relief
- railway vehicle
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H11/00—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types
- B61H11/06—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types of hydrostatic, hydrodynamic, or aerodynamic brakes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Systems And Boosters (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The application provides an air brake for railway vehicle braking, wherein each auxiliary air cylinder is provided with at least one relief valve, each relief valve is a normally open valve, air outlets of all relief valves are communicated with an air inlet of a relief pipeline, and an air outlet of the relief pipeline is provided with an air outlet valve; all auxiliary air cylinders are communicated together by utilizing a relief pipeline and a relief valve, compressed air in all auxiliary air cylinders in a railway vehicle can be completely discharged only by opening any exhaust valve, the air pressure in all auxiliary air cylinders can be reduced to 0, the pressure in all auxiliary air cylinders of a train can be relieved at one time, the braking of all vehicles is relieved, manual valve opening and air discharging of the auxiliary air cylinders of each vehicle are not needed any more, the labor intensity of staff is remarkably reduced, the working efficiency is improved, the turnover of the railway vehicle in a factory is improved, and the turnover rate of the railway vehicle is improved.
Description
Technical Field
The application relates to the technical field of train braking equipment, in particular to an air brake for railway vehicle braking.
Background
The train braking is controlled by the locomotive, and each section of vehicle brakes together. Parts of an air brake for railway vehicle braking, one part being mounted on a locomotive and the other part being mounted on the vehicle; wherein, the equipment installed on the locomotive comprises an air compressor, a main air cylinder, a brake valve and the like; the equipment installed on the vehicle comprises a brake main pipe (taking a GK brake as a column), a bevel cock, a brake branch pipe, a cut-off cock, a telecentric dust collector, a three-way valve, an auxiliary air cylinder, a relief valve, a depressurization air cylinder, an empty and heavy vehicle adjusting device, a brake cylinder, a brake shoe and the like. A complete set of brake device is installed under each section of vehicle, compressed air generated by an air compressor on a locomotive is stored in a master cylinder, and when a driver operates a brake valve to charge air to a brake master pipe of each section of vehicle, the compressed air is sent to a slave cylinder of each section of vehicle. When a driver brakes, compressed air in the auxiliary air cylinder is discharged, and the compressed air can push piston rods of the brake cylinders of all vehicles to extend to tightly hold the brake shoes, so that the train is stopped rapidly. No matter how many cars the locomotive pulls, the driver can control the running of the whole train, so that the train stops rapidly.
The three-way valve is the most important component in the vehicle brake, and is connected with the brake branch pipe, the auxiliary air cylinder and the brake cylinder to control the passage of compressed air so as to make the brake play a role in braking or relieving. The auxiliary air cylinder is used for storing compressed air, and the braking is realized by feeding the compressed air into the braking cylinder by utilizing the action of the three-way valve. Relief valve: in order to release the braked train, the release valve on the auxiliary air cylinder can be pulled to discharge the compressed air in the auxiliary air cylinder through the release valve, the pressure of the compressed air in the auxiliary air cylinder is lower than that of the compressed air in the brake main pipe, the main piston of the three-way valve acts, the slide valve moves along with the main piston, the compressed air in the brake cylinder is discharged, and the brake shoe leaves the wheel to release.
At present, after a railway vehicle (truck) arrives at a factory station, a vehicle is unloaded by a para-position vehicle dumper, and the vehicle poking machine of the vehicle dumper needs to release the braking of all vehicles (the compressed air in a secondary air cylinder is exhausted) before the vehicle is towed, so that all vehicles are in a release state. At present, workers are required to manually open and exhaust auxiliary air cylinders of each section of vehicle (the process is called air pulling, the time of manually opening and exhausting is about 30 seconds), and the total time of manually opening and exhausting of the whole train is about 60 minutes (including personnel walking time), so that the labor intensity of staff is remarkably improved, the working efficiency is reduced, the turnover of railway vehicles in factories is slowed down, and the turnover rate of the railway vehicles (important assessment indexes of companies) is seriously reduced.
Disclosure of Invention
The application aims to provide an air brake for railway vehicle braking.
In order to solve the technical problems, the technical scheme provided by the application is as follows:
an air brake for railway vehicle braking comprises an air compressor, a main air cylinder, a brake valve, a brake main pipe, a bevel cock, a brake branch pipe, a cut-off cock, a three-way valve, an auxiliary air cylinder, a relief valve, a depressurization air cylinder, an empty and heavy vehicle adjusting device, a brake cylinder and brake shoes, wherein the relief valve is arranged on the auxiliary air cylinder, at least one relief valve is arranged on each auxiliary air cylinder, and an air inlet of the relief valve is communicated with an inner cavity in the auxiliary air cylinder for discharging compressed air in the auxiliary air cylinder through the relief valve;
the relief valve is a normally open valve, the air outlets of all relief valves are communicated with the air inlet of the relief pipeline, the air outlet of one relief valve corresponds to one air inlet of the relief pipeline one by one, at least one air outlet is arranged on the relief pipeline, an exhaust valve is arranged on the air outlet of the relief pipeline, and the air outlet of the relief pipeline is communicated with the air inlet of the exhaust valve.
Preferably, the relief pipeline is arranged at the bottom of the running part of the vehicle, the relief pipeline is formed by connecting multiple sections of exhaust steel pipes in series, the exhaust steel pipes are paved at the bottom of the running part of each vehicle, and two adjacent sections of exhaust steel pipes positioned on two adjacent vehicles are communicated with the quick connector through rubber hoses and are connected together.
Preferably, the air outlet of the relief valve is in sealed welding communication with the air inlet of the exhaust steel pipe.
Preferably, the exhaust valve is a manual exhaust valve or an electric exhaust valve.
Preferably, the exhaust valve is a dog-ear cock.
Preferably, the exhaust valve is arranged at the head, middle and/or tail of the relief pipeline.
The application provides an air brake for railway vehicle braking, which comprises an air compressor, a main air cylinder, a brake valve, a brake main pipe, a bevel cock, a brake branch pipe, a cut-off cock, a three-way valve, an auxiliary air cylinder, a relief valve, a depressurization air cylinder, an empty and load adjusting device, a brake cylinder and brake shoes, wherein each auxiliary air cylinder is provided with at least one relief valve, an air inlet of the relief valve is communicated with an inner cavity in the auxiliary air cylinder, the relief valves are normally open valves, air outlets of all relief valves are communicated with an air inlet of a relief pipeline, an air outlet of the relief pipeline is provided with an air outlet valve, and the air outlet of the relief pipeline is communicated with the air inlet of the air outlet valve;
the application relates to a brake system of a railway vehicle, which is improved in braking and relieving modes, all auxiliary air cylinders are communicated together by utilizing a relieving pipeline and a relieving valve, compressed air in all auxiliary air cylinders in the railway vehicle can be discharged completely by opening any exhaust valve before unloading the car dumper, the air pressure in all auxiliary air cylinders is reduced to 0, the pressure in all auxiliary air cylinders of a train (about 60 cars) can be relieved at one time, brake shoes are separated from wheels to be relieved, and the braking of all the vehicles is relieved, so that the manual valve opening and the exhaust of the auxiliary air cylinders of each car are not required, the labor intensity of staff is obviously reduced, the working efficiency is improved, the turnover of the railway vehicle in a factory is improved, and the turnover rate of the railway vehicle is improved.
Drawings
Fig. 1 is a schematic diagram of the working principle of an air brake for braking a railway vehicle.
In the figure: a brake main pipe 1, a brake branch pipe 2, a three-way valve 3, a 4-pair air cylinder and a 401 relief valve;
5 brake cylinders, 501 brake levers, 6 brake shoes;
7 relief pipe, 701 exhaust valve, 8 wheels.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In the description of the present application, it should be understood that the terms "center", "axial", "radial", "longitudinal", "transverse", "length", "width", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "horizontal", "vertical", etc. indicate orientations or positional relationships based on the actual orientations or positional relationships, are merely used for convenience in describing the present application and to simplify the description, and do not indicate or imply that the devices or elements being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.
As shown in fig. 1, in the figure: a brake main pipe 1, a brake branch pipe 2, a three-way valve 3, an auxiliary air cylinder 4 and a relief valve 401; a brake cylinder 5, a brake lever 501, a brake shoe 6; relief pipe 7, exhaust valve 701, wheel 8.
The application provides an air brake for railway vehicle braking, which comprises an air compressor, a main air cylinder, a brake valve, a brake main pipe 1, a bevel cock, a brake branch pipe 2, a cut-off cock, a three-way valve 3, an auxiliary air cylinder 4, a relief valve 401, a depressurization air cylinder, an empty car adjusting device, a brake cylinder 5 and a brake shoe 6, wherein the relief valve 401 is arranged on the auxiliary air cylinder 4, at least one relief valve 401 is arranged on each auxiliary air cylinder 4, and an air inlet of the relief valve 401 is communicated with an inner cavity in the auxiliary air cylinder 4 for discharging compressed air in the auxiliary air cylinder 4 through the relief valve 401;
the relief valve 401 is a normally open valve, air outlets of all relief valves 401 are communicated with an air inlet of the relief pipeline 7, the air outlets of one relief valve 401 are in one-to-one correspondence with one air inlet of the relief pipeline 7, at least one air outlet is arranged on the relief pipeline 7, an exhaust valve 701 is arranged on the air outlet of the relief pipeline 7, and the air outlet of the relief pipeline 7 is communicated with the air inlet of the exhaust valve 701.
In one embodiment of the present application, the relief pipe 7 is disposed on the bottom of the running part of the vehicle, the relief pipe 7 is made of multiple sections of exhaust steel pipes connected in series, the exhaust steel pipes are laid on the bottom of the running part of each section of vehicle, and two adjacent sections of exhaust steel pipes on two adjacent sections of vehicles are connected with the quick connector through rubber hoses.
In one embodiment of the present application, the air outlet of the relief valve 401 is in sealed welded communication with the air inlet of the exhaust steel pipe.
In one embodiment of the present application, the exhaust valve 701 is a manual exhaust valve or an electric exhaust valve.
In one embodiment of the present application, the exhaust valve 701 is a dog-ear plug.
In one embodiment of the application, the exhaust valve 701 is arranged at the head, middle and/or tail of the relief pipe 7.
The working principle of the air brake is as follows: 1) The braking principle: when a driver moves the brake valve to a braking position, the main air cylinder is disconnected with the brake main pipe 1, part of compressed air in the brake main pipe 1 is discharged to the atmosphere, at the moment, the pressure of the compressed air in the auxiliary air cylinder 4 is relatively higher than the pressure of the compressed air in the brake main pipe 1, so that the main piston of the three-way valve 3 is pushed to move leftwards, a passage of an inflation channel is blocked, the compressed air in the auxiliary air cylinder 4 cannot flow back, the main piston of the three-way valve 3 moves and drives the slide valve to move leftwards, an outlet leading to the atmosphere is blocked, the compressed air in the auxiliary air cylinder 4 enters the brake cylinder 5, the piston of the brake cylinder 5 is pushed to move rightwards, and the brake shoe 6 tightly holds the wheel 8 for braking through the transmission of the brake rod 501;
2) The relief principle is as follows: when the driver puts the brake valve in the release position, the main air cylinder is communicated with the brake main pipe 1, compressed air of the main air cylinder enters the brake main pipe 1 and enters the three-way valve 3 through the brake branch pipe 2, the main piston in the three-way valve 3 is pushed to move rightwards together with the slide valve, the air charging groove is opened, the compressed air enters the auxiliary air cylinder 4 through the air charging groove until the pressure of the compressed air in the auxiliary air cylinder 4 is equal to the pressure of the compressed air in the brake main pipe 1, the slide valve connected with the main piston moves rightwards while the main piston in the three-way valve 3 moves, so that the compressed air in the brake cylinder 5 is discharged through the exhaust port under the slide valve, and then the piston in the brake cylinder 5 is pushed back to the original position by the elastic force of the spring, so that the brake shoe 6 leaves the wheel 8 to release.
In the application, the structures, models, and the like of an air compressor, a main air cylinder, a brake valve, a brake main pipe 1, a bevel cock, a brake branch pipe 2, a cut-off cock, a telecentric dust collector, a three-way valve 3, a subsidiary air cylinder 4, a relief valve 401, a depressurization air cylinder, an empty-load car adjusting device, a brake cylinder 5 and a brake shoe 6 in the air brake are all in the prior art, and the connection relationship, the position relationship and the transmission relationship among the air compressor, the main air cylinder, the brake valve, the bevel cock, the brake branch pipe 2, the cut-off cock, the three-way valve 4, the brake main pipe 3, the cut-off cock, the brake branch pipe 2, the cut-off cock, the telecentric dust collector, the three-way valve 3, the subsidiary air cylinder 4, the relief valve 401, the depressurization air cylinder, the empty-load car adjusting device, the brake cylinder 5 and the brake shoe 6 are all in the prior art, and the connection relationship and the transmission relationship among the air compressor, the relief valve 401, the depressurization air cylinder, the empty-load car adjusting device, the brake cylinder 5 and the brake shoe 6 can be obtained in textbooks and the like.
The application provides an air brake for railway vehicle braking, which comprises an air compressor, a main air cylinder, a brake valve, a brake main pipe 1, a bevel cock, a brake branch pipe 2, a cut-off cock, a three-way valve 3, an auxiliary air cylinder 4, a relief valve 401, a depressurization air cylinder, an empty and heavy vehicle adjusting device, a brake cylinder 5 and a brake shoe 6, wherein each auxiliary air cylinder 4 of all auxiliary air cylinders is provided with at least one relief valve 401, the air inlet of the relief valve 401 is communicated with an inner cavity in the auxiliary air cylinder 4, the relief valve 401 is a normally open valve, the air outlets of all relief valves 401 are communicated with the air inlet of a relief pipeline 7, the air outlet of the relief pipeline 7 is provided with an exhaust valve 701, and the air outlet of the relief pipeline 7 is communicated with the air inlet of the exhaust valve 701;
the application relates to a modification of a braking system of a railway vehicle in braking and relieving modes, wherein a relieving pipeline 7 and a relieving valve 401 are utilized to communicate all auxiliary air cylinders 4 together, before a dumper is dumped, compressed air in all auxiliary air cylinders 4 in the railway vehicle can be discharged completely by opening any exhaust valve 701, the air pressure in all auxiliary air cylinders 4 is reduced to 0, the pressure in all auxiliary air cylinders 4 of a train (60-section vehicles left and right) can be relieved at one time, brake shoes 6 are separated from wheels 8 to be relieved, the braking of all vehicles is relieved, manual valve opening and exhaust of the auxiliary air cylinders 4 of each section of vehicle are not required, the labor intensity of staff is remarkably reduced, the working efficiency is improved, the turnover of the railway vehicle in a factory is improved, and the turnover rate of the railway vehicle is improved.
The method and the device which are not described in detail in the application are all the prior art and are not described in detail.
The above description of the embodiments is only for aiding in the understanding of the method of the present application and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the application can be made without departing from the principles of the application and these modifications and adaptations are intended to be within the scope of the application as defined in the following claims.
Claims (6)
1. An air brake for railway vehicle braking, comprising an air compressor, a main air cylinder, a brake valve, a brake main pipe, a bevel cock, a brake branch pipe, a cut-off cock, a three-way valve, an auxiliary air cylinder, a relief valve, a depressurization air cylinder, an empty and heavy vehicle adjusting device, a brake cylinder and a brake shoe, wherein the relief valve is arranged on the auxiliary air cylinder, at least one relief valve is arranged on each auxiliary air cylinder, and an air inlet of the relief valve is communicated with an inner cavity in the auxiliary air cylinder for discharging compressed air in the auxiliary air cylinder through the relief valve;
the relief valve is a normally open valve, the air outlets of all relief valves are communicated with the air inlet of the relief pipeline, the air outlet of one relief valve corresponds to one air inlet of the relief pipeline one by one, at least one air outlet is arranged on the relief pipeline, an exhaust valve is arranged on the air outlet of the relief pipeline, and the air outlet of the relief pipeline is communicated with the air inlet of the exhaust valve.
2. An air brake for railway vehicle braking according to claim 1, wherein the relief pipe is provided on the bottom of the running part of the vehicle, the relief pipe is made of a plurality of sections of exhaust steel pipes which are connected in series, the bottom of the running part of each section of vehicle is paved with exhaust steel pipes, and two sections of adjacent exhaust steel pipes on two adjacent sections of vehicles are connected with the quick connector through rubber hoses.
3. An air brake for railway vehicle braking as claimed in claim 2, wherein the air outlet of the relief valve is in sealed welded communication with the air inlet of the exhaust steel duct.
4. An air brake for railway vehicle braking as claimed in claim 1, wherein the exhaust valve is a manual exhaust valve or an electric exhaust valve.
5. An air brake for railway vehicle braking as claimed in claim 1, wherein the exhaust valve is a dog-leg cock.
6. An air brake for railway vehicle braking according to claim 1, characterized in that the exhaust valve is arranged at the head, middle and/or tail of the relieving pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111555750.1A CN114179848B (en) | 2021-12-17 | 2021-12-17 | Air brake for railway vehicle braking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111555750.1A CN114179848B (en) | 2021-12-17 | 2021-12-17 | Air brake for railway vehicle braking |
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| Publication Number | Publication Date |
|---|---|
| CN114179848A CN114179848A (en) | 2022-03-15 |
| CN114179848B true CN114179848B (en) | 2023-08-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111555750.1A Active CN114179848B (en) | 2021-12-17 | 2021-12-17 | Air brake for railway vehicle braking |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3232047A1 (en) * | 1982-08-27 | 1984-03-01 | Knorr-Bremse GmbH, 8000 München | Emergency braking device provided in a compressed air brake for rail vehicles as a component of a brake control valve and separate operating brake accelerator |
| CN103010198A (en) * | 2012-12-25 | 2013-04-03 | 南车长江车辆有限公司 | Integrated control type braking system of railway wagon |
| CN106364523A (en) * | 2016-10-21 | 2017-02-01 | 中车青岛四方车辆研究所有限公司 | Relieving auxiliary device for parking brake mechanism of locomotive |
| CN106428097A (en) * | 2016-11-01 | 2017-02-22 | 中车株洲电力机车有限公司 | Locomotive and parking brake machine release system thereof |
| CN107161132A (en) * | 2017-06-02 | 2017-09-15 | 青岛思锐科技有限公司 | A kind of passenger train electro pneumatic braking system and alleviation method |
| CN108454649A (en) * | 2018-04-04 | 2018-08-28 | 湖南高速铁路职业技术学院 | Locomotive remotely alleviates system with EMU parking brake |
| CN109204373A (en) * | 2018-08-21 | 2019-01-15 | 中车南京浦镇车辆有限公司 | Integration air brake apparatus used for rail vehicle |
| CN109383554A (en) * | 2017-08-03 | 2019-02-26 | 中车唐山机车车辆有限公司 | It controls vehicle and concentrates braking control system, method and EMU braking control system |
| CN112721992A (en) * | 2021-01-29 | 2021-04-30 | 中车山东机车车辆有限公司 | Air braking device and rail vehicle |
-
2021
- 2021-12-17 CN CN202111555750.1A patent/CN114179848B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3232047A1 (en) * | 1982-08-27 | 1984-03-01 | Knorr-Bremse GmbH, 8000 München | Emergency braking device provided in a compressed air brake for rail vehicles as a component of a brake control valve and separate operating brake accelerator |
| CN103010198A (en) * | 2012-12-25 | 2013-04-03 | 南车长江车辆有限公司 | Integrated control type braking system of railway wagon |
| CN106364523A (en) * | 2016-10-21 | 2017-02-01 | 中车青岛四方车辆研究所有限公司 | Relieving auxiliary device for parking brake mechanism of locomotive |
| CN106428097A (en) * | 2016-11-01 | 2017-02-22 | 中车株洲电力机车有限公司 | Locomotive and parking brake machine release system thereof |
| CN107161132A (en) * | 2017-06-02 | 2017-09-15 | 青岛思锐科技有限公司 | A kind of passenger train electro pneumatic braking system and alleviation method |
| CN109383554A (en) * | 2017-08-03 | 2019-02-26 | 中车唐山机车车辆有限公司 | It controls vehicle and concentrates braking control system, method and EMU braking control system |
| CN108454649A (en) * | 2018-04-04 | 2018-08-28 | 湖南高速铁路职业技术学院 | Locomotive remotely alleviates system with EMU parking brake |
| CN109204373A (en) * | 2018-08-21 | 2019-01-15 | 中车南京浦镇车辆有限公司 | Integration air brake apparatus used for rail vehicle |
| CN112721992A (en) * | 2021-01-29 | 2021-04-30 | 中车山东机车车辆有限公司 | Air braking device and rail vehicle |
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| CN114179848A (en) | 2022-03-15 |
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