CN114179848A - Air brake for braking railway vehicle - Google Patents
Air brake for braking railway vehicle Download PDFInfo
- Publication number
- CN114179848A CN114179848A CN202111555750.1A CN202111555750A CN114179848A CN 114179848 A CN114179848 A CN 114179848A CN 202111555750 A CN202111555750 A CN 202111555750A CN 114179848 A CN114179848 A CN 114179848A
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- Prior art keywords
- brake
- valve
- air
- release
- exhaust
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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
Abstract
The application provides an air brake for braking a railway vehicle, wherein each auxiliary air cylinder is provided with at least one release valve, the release valves are normally open valves, air outlets of all the release valves are communicated with air inlets of release pipelines, and air outlets of the release pipelines are provided with exhaust valves; all the auxiliary air cylinders are communicated together by utilizing the relieving pipelines and the relieving valves, compressed air in all the auxiliary air cylinders in the railway vehicle can be discharged completely by only opening any one exhaust valve, the air pressure in all the auxiliary air cylinders is reduced to 0, the pressure in all the auxiliary air cylinders of a train can be relieved at one time, the braking of all the vehicles is relieved, workers are not required to manually open the valves for exhausting the auxiliary air cylinders of each vehicle, the labor intensity of the workers is obviously reduced, the operation 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 invention relates to the technical field of train braking equipment, in particular to an air brake for braking a railway vehicle.
Background
The train brake is controlled by the train head, and each train brakes together. A component of an air brake for braking a railway vehicle, one part being mounted on the locomotive and the other part being mounted on the vehicle; wherein, the equipment installed on the locomotive comprises an air compressor, a main air reservoir, a brake valve and the like; the equipment installed on the vehicle comprises a brake main pipe (taking a GK type brake as a train), a bevel cock, a brake branch pipe, a cut-off cock, a telecentric dust collector, a three-way valve, an auxiliary air cylinder, a release valve, a pressure reduction air cylinder, an empty and heavy vehicle adjusting device, a brake cylinder, a brake shoe and the like. A complete set of brake devices is installed under each vehicle, compressed air generated by an air compressor on the locomotive is stored in a main air cylinder, and when a driver operates a brake valve to charge a brake main pipe of each vehicle, the compressed air is sent to an auxiliary air cylinder of each vehicle. When a driver brakes, compressed air in the auxiliary reservoir is exhausted, and the compressed air can push a piston rod of a brake cylinder of each vehicle to extend out to tightly hold a brake shoe, so that the train is quickly stopped. No matter how many cars are towed by the locomotive, a driver can control the running of the whole train, so that the train can be stopped quickly.
The three-way valve is the most important part of the vehicle brake and is connected with the brake branch pipe, the auxiliary reservoir and the brake cylinder to control the passage of compressed air so as to brake or relieve the brake. The auxiliary reservoir is the place for storing compressed air, and the brake uses the function of three-way valve to send compressed air into brake cylinder for braking. A relief valve: in order to relieve a braked train, a relief valve on an auxiliary reservoir can be pulled to discharge compressed air in the auxiliary reservoir through the relief valve, the compressed air pressure in the auxiliary reservoir is lower than that in a brake main pipe, a main piston of a three-way valve acts, a slide valve moves along with the main piston, the compressed air in a brake cylinder is discharged, and a brake shoe is separated from a wheel to relieve.
At present, after railway vehicles (trucks) arrive at a factory station, a contraposition tippler unloads, and before a tippler of the tippler pulls the vehicles, the braking of all vehicles needs to be relieved (compressed air in an auxiliary air cylinder is exhausted), so that all vehicles are in a relieved state. At present, workers are required to manually open the valve and exhaust the auxiliary reservoir of each vehicle (the process is called to draw air, the time for manually opening the valve and exhausting the air is about 30 seconds), and the total time for manually opening the valve and exhausting the air of the whole train is about 60 minutes (including the time for the personnel to walk), so that the labor intensity of the workers is obviously improved, the operation efficiency is reduced, the turnover of the railway vehicles in a factory is slowed down, and the turnover rate of the railway vehicles (an important assessment index of a company) is seriously reduced.
Disclosure of Invention
The invention aims to provide an air brake for braking a railway vehicle.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
an air brake for braking a railway vehicle comprises an air compressor, a main air cylinder, a brake valve, a main brake pipe, a bevel cock, a brake branch pipe, a cut cock, a three-way valve, an auxiliary air cylinder, a relief valve, a pressure reduction 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;
the release valve is a normally open type valve, the gas outlets of all the release valves are communicated with the gas inlet of the release pipeline, the gas outlet of one release valve is in one-to-one correspondence with the gas inlet of the release pipeline, at least one gas outlet is arranged on the release pipeline, an exhaust valve is arranged on the gas outlet of the release pipeline, and the gas outlet of the release pipeline is communicated with the gas inlet of the exhaust valve.
Preferably, the relieving pipeline is arranged at the bottom of the walking part of the vehicle and is made of a plurality of sections of exhaust steel pipes which are communicated in series, the exhaust steel pipes are paved at the bottom of the walking part of each section of vehicle, and two adjacent sections of exhaust steel pipes on two adjacent sections of vehicles are communicated and connected with the quick joint through rubber hoses.
Preferably, the air outlet of the relief valve is in seal 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 an angle cock.
Preferably, the exhaust valve is arranged at the head, the middle and/or the tail of the relief pipeline.
The application provides an air brake for braking of railway vehicles, 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 cock, a three-way valve, an auxiliary air cylinder, a relief valve, a pressure reduction air cylinder, an empty and heavy vehicle adjusting device, a brake cylinder and a brake shoe, wherein each auxiliary air cylinder is provided with at least one relief valve, an air inlet of each relief valve is communicated with an inner cavity in the auxiliary air cylinder, each relief valve is a normally-open valve, air outlets of all relief valves are communicated with an air inlet of each relief pipeline, an exhaust valve is arranged on an air outlet of each relief pipeline, and an air outlet of each relief pipeline is communicated with an air inlet of the corresponding exhaust valve;
the invention relates to the improvement of a braking system of a railway vehicle in a braking and relieving mode, wherein all auxiliary air cylinders are communicated together by utilizing a relieving pipeline and a relieving valve, compressed air in all the auxiliary air cylinders in the railway vehicle can be exhausted cleanly by opening any exhaust valve before a tipper unloads, the air pressure in all the auxiliary air cylinders is reduced to 0, the pressure in all the auxiliary air cylinders of a train (about 60 sections of vehicles) can be relieved at one time, brake shoes are released by leaving away from wheels, the braking of all the vehicles is relieved, workers are not required to manually open the valves of the auxiliary air cylinders of each vehicle for exhausting, the labor intensity of the workers is obviously reduced, the operation 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 representation of the operational principle of an air brake for braking a railway vehicle according to the present application.
In the figure: 1 braking main pipe, 2 braking branch pipes, 3 three-way valves, 4 auxiliary air cylinders and 401 relief valves;
5 brake cylinder, 501 brake lever, 6 brake shoe;
7 relief pipe, 701 exhaust valve, 8 wheels.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In the description of the present invention, it is to be understood that the terms "central," "axial," "radial," "longitudinal," "transverse," "length," "width," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "horizontal," "vertical," and the like are used in an orientation or positional relationship indicated to facilitate description of the invention and to simplify description, but do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be considered as limiting.
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 reservoir 4 and a relief valve 401; brake cylinder 5, brake lever 501, brake shoe 6; relief pipe 7, exhaust valve 701, wheel 8.
The application provides an air brake for braking of a railway vehicle, and the air brake comprises an air compressor, a main air cylinder, a brake valve, a brake main pipe 1, a folding angle cock, a brake branch pipe 2, a cut cock, a three-way valve 3, an auxiliary air cylinder 4, a relief valve 401, a pressure reduction air cylinder, an empty and heavy vehicle adjusting device, a brake cylinder 5 and a brake shoe 6, wherein the relief valve 401 is arranged on the auxiliary air cylinder 4, each auxiliary air cylinder 4 is provided with at least one relief valve 401, and an air inlet of each relief valve 401 is communicated with an inner cavity in the auxiliary air cylinder 4 so as to discharge compressed air in the auxiliary air cylinder 4 through the relief valve 401;
alleviate valve 401 and be the normal open type valve, whole gas outlets of alleviating valve 401 all with alleviate the air inlet intercommunication of pipeline 7, alleviate valve 401's gas outlet and alleviate an air inlet one-to-one of pipeline 7, it is provided with at least one gas outlet to alleviate on the pipeline 7, be provided with discharge valve 701 on alleviating the gas outlet of pipeline 7, alleviate pipeline 7 the gas outlet with discharge valve 701's air inlet intercommunication.
In one embodiment of the application, the relieving pipeline 7 is arranged at the bottom of a walking part of a vehicle, the relieving pipeline 7 is made of multiple sections of exhaust steel pipes in serial connection, the exhaust steel pipes are paved at the bottom of the walking part of each section of vehicle, and two adjacent sections of exhaust steel pipes on two adjacent sections of vehicles are communicated and connected with the quick coupling through rubber hoses.
In one embodiment of the present application, the outlet of the relief valve 401 is in sealed welded communication with the inlet of the exhaust steel duct.
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 present application, the exhaust valve 701 is disposed at the head, middle and/or tail of the relief duct 7.
The working principle of the air brake is as follows: 1) the braking principle is as follows: when a driver moves a brake valve to a braking position, the main air cylinder is disconnected from the main brake pipe 1, compressed air in the main brake pipe 1 is discharged to the atmosphere, and at the moment, the compressed air pressure in the auxiliary air cylinder 4 is relatively larger than the compressed air pressure in the main brake pipe 1, so that a main piston of the three-way valve 3 is pushed to move leftwards, a passage of an air charging groove is cut off, the compressed air in the auxiliary air cylinder 4 cannot flow backwards, a slide valve is driven to move leftwards while the main piston of the three-way valve 3 moves, an outlet leading to the atmosphere is cut off, 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 to brake through the transmission of the brake lever 501;
2) the relieving principle is as follows: when a driver places a brake valve at a release position, a main air cylinder is communicated with a brake main pipe 1, compressed air of the main air cylinder enters the brake main pipe 1, enters a three-way valve 3 through a brake branch pipe 2, pushes a main piston in the three-way valve 3 and a slide valve to move rightwards, opens an inflation groove, and enables the compressed air to enter an auxiliary air cylinder 4 through the inflation groove until the compressed air pressure in the auxiliary air cylinder 4 is equal to the compressed air pressure in the brake main pipe 1, the slide valve connected with the main piston moves rightwards along with the movement of the main piston in the three-way valve 3, so that the compressed air in a brake cylinder 5 is exhausted through an exhaust port below the slide valve, and then the piston in the brake cylinder 5 is pushed back to the original position by the elastic force of a spring, and a brake shoe 6 is separated from a wheel 8 to be released.
In the application, the air compressor, the main air cylinder, the brake valve, the brake main pipe 1, the angle cock, the brake branch pipe 2, the cut cock, the telecentric dust collector, the three-way valve 3, the auxiliary air cylinder 4, the relief valve 401, the pressure reduction air cylinder, the empty and heavy vehicle adjusting device, the brake cylinder 5 and the brake shoe 6 in the air brake are all the prior art, the structure and the model of the air compressor, the main air cylinder, the brake valve, the brake main pipe 1, the angle cock, the brake branch pipe 2, the cut cock, the telecentric dust collector, the three-way valve 3, the auxiliary air cylinder 4, the relief valve 401, the pressure reduction air cylinder, the empty and heavy vehicle adjusting device, the brake cylinder 5 and the brake shoe 6 are all the prior art, and the air compressor, the main air cylinder, the brake valve, the brake main pipe 1, the angle cock, the brake branch pipe 2, the cut cock, the telecentric dust collector, the three-way valve 3, the auxiliary air cylinder 4, the relief valve 401, the pressure reduction air cylinder, the empty and heavy vehicle adjusting device, the brake valve, The connection relationship, the position relationship and the transmission relationship between the brake cylinder 5 and the brake shoe 6 are all the prior art, and can be retrieved from the documents such as textbooks, tool books, thesis and the like, and the details are not repeated here.
The application provides an air brake for braking of a railway vehicle, which comprises an air compressor, a main air cylinder, a brake valve, a brake main pipe 1, a folding angle cock, a brake branch pipe 2, a cut cock, a three-way valve 3, an auxiliary air cylinder 4, a relief valve 401, a pressure reduction air cylinder, an empty and heavy vehicle adjusting device, a brake cylinder 5 and a brake shoe 6, wherein each auxiliary air cylinder 4 in all the auxiliary air cylinders is provided with at least one relief valve 401, an 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, an air outlet of all the relief valves 401 is communicated with an air inlet of a relief pipeline 7, an exhaust valve 701 is arranged on an 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;
the invention relates to the improvement of a braking system of a railway vehicle in a braking and relieving mode, all auxiliary air cylinders 4 are communicated together by utilizing a relieving pipeline 7 and a relieving valve 401, before the tipper unloads, compressed air in all the auxiliary air cylinders 4 in the railway vehicle can be exhausted cleanly by opening any exhaust valve 701, the air pressure in all the auxiliary air cylinders 4 is reduced to 0, the pressure in all the auxiliary air cylinders 4 of a train (about 60-section vehicles) can be relieved at one time, the brake shoes 6 are relieved after leaving the wheels 8, the brake of all the vehicles is relieved, workers do not need to manually open the valves and exhaust the auxiliary air cylinders 4 of all the vehicles, therefore, the labor intensity of staff is obviously reduced, the operation efficiency is improved, the turnover of the railway vehicle in a factory is improved, and the turnover rate of the railway vehicle is improved.
Methods and devices not described in detail in the present invention are all the prior art and are not described in detail.
The above description of the embodiments is only intended to facilitate the understanding of the method of the invention and its core idea. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (6)
1. An air brake for braking a railway vehicle, which comprises an air compressor, a main air cylinder, a brake valve, a main brake pipe, a bevel cock, a brake branch pipe, a cut cock, a three-way valve, an auxiliary air cylinder, a relief valve, a pressure reduction air cylinder, an empty and heavy vehicle adjusting device, a brake cylinder and a brake shoe, and is characterized in that 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 so as to discharge compressed air in the auxiliary air cylinder through the relief valve;
the release valve is a normally open type valve, the gas outlets of all the release valves are communicated with the gas inlet of the release pipeline, the gas outlet of one release valve is in one-to-one correspondence with the gas inlet of the release pipeline, at least one gas outlet is arranged on the release pipeline, an exhaust valve is arranged on the gas outlet of the release pipeline, and the gas outlet of the release pipeline is communicated with the gas inlet of the exhaust valve.
2. An air brake for braking of railway vehicles according to claim 1, wherein the release pipe is arranged on the bottom of the running part of the vehicles, the release pipe is made of multiple sections of exhaust steel pipes which are communicated in series, the exhaust steel pipes are laid on the bottom of the running part of each vehicle, and two adjacent sections of exhaust steel pipes on two adjacent vehicles are communicated and connected with the quick connector through rubber hoses.
3. An air brake rigging for a railway vehicle brake application according to claim 2, wherein said relief valve outlet is in sealed welded communication with said air inlet of said steel exhaust duct.
4. An air brake rigging for a railway vehicle brake application according to claim 1, wherein said exhaust valve is a manual exhaust valve or an electric exhaust valve.
5. An air brake rigging for a railway vehicle brake application according to claim 1, wherein said exhaust valve is a dog-eared plug.
6. An air brake rigging for a railway vehicle brake application according to claim 1, wherein said exhaust valve is disposed at the head, middle and/or tail of said release conduit.
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 |
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| CN114179848A true CN114179848A (en) | 2022-03-15 |
| CN114179848B CN114179848B (en) | 2023-08-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| 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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| CN114179848B (en) | 2023-08-22 |
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