CN105774785A - Railway vehicle air brake system - Google Patents
Railway vehicle air brake system Download PDFInfo
- Publication number
- CN105774785A CN105774785A CN201610195141.2A CN201610195141A CN105774785A CN 105774785 A CN105774785 A CN 105774785A CN 201610195141 A CN201610195141 A CN 201610195141A CN 105774785 A CN105774785 A CN 105774785A
- Authority
- CN
- China
- Prior art keywords
- air
- rail vehicle
- brake systems
- pneumatic brake
- vehicle pneumatic
- 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.)
- Pending
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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
- 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
- B60T13/40—Compressed-air systems indirect, i.e. compressed air booster units indirect systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L5/00—Current collectors for power supply lines of electrically-propelled vehicles
- B60L5/18—Current collectors for power supply lines of electrically-propelled vehicles using bow-type collectors in contact with trolley wire
- B60L5/22—Supporting means for the contact bow
- B60L5/28—Devices for lifting and resetting the collector
- B60L5/32—Devices for lifting and resetting the collector using fluid pressure
-
- 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
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C15/00—Maintaining or augmenting the starting or braking power by auxiliary devices and measures; Preventing wheel slippage; Controlling distribution of tractive effort between driving wheels
- B61C15/08—Preventing wheel slippage
- B61C15/10—Preventing wheel slippage by depositing sand or like friction increasing materials
- B61C15/107—Preventing wheel slippage by depositing sand or like friction increasing materials with electrically or electromagnetically controlled sanding equipment
-
- 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
- B60T2260/00—Interaction of vehicle brake system with other systems
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fluid Mechanics (AREA)
- Power Engineering (AREA)
- Regulating Braking Force (AREA)
- Braking Systems And Boosters (AREA)
Abstract
The invention relates to a railway vehicle air brake system. The railway vehicle air brake system comprises an air cylinder, an air brake control module, a pantograph lifting control module, a sanding control module, a parking control module, an air supply and air spring control module, an anti-skid device and a brake. The air cylinder is used for storing compressed air; the air brake control module mainly comprises an air pressure regulating device, a pressure limiting device and a flow amplifying device; the air pressure regulating device receives a braking command to determine pre-control air pressure; the flow amplifying device performs flow amplification on the pre-control air pressure; in an emergency brake, the pressure limiting device limits the level of the pre-control pressure, to prevent from generating overlarge braking force; the pantograph lifting control module is used for receiving commands to realize lifting and descending of a pantograph; the sanding control module is used for controlling the compressed air to scatter sand onto the railway under certain conditions; the parking control module is used for receiving the command to control exertion and removal of parking brake; the air supply and air spring control module is used for controlling main air to supply air for the brake system and for an air spring; the anti-skid device is used for receiving the command to perform anti-skid control; and the brake is used for receiving the compressed air from the flow amplifying device and generating braking force.
Description
Technical field
The present invention is broadly directed to rail vehicle technical field, and particularly to the Pneumatic brake systems for rail vehicle.
Background technology
Traditional rail transit car braking system is generally adopted the mode of decompression and realizes, the braking equipment that domestic traditional rail transit car braking system realizes braking is generally three-way valve or distributing valve, such as the three-way valve of goods train GK type, for the three-way valve of passenger train GL3 type, or 103 types, 104 type distributing valves.The feature of traditional braking equipment is when the train pipe air pressure being connected with brake reduces, brake system；And when train pipe air pressure raises, brakes is alleviated.The size of train pipe pressure reduction determines the output pressure of brake cylinder accordingly, and then drives the brake clamp on bogie and brake lining or tread braking unit and brake shoe to act on wheel, realizes train braking system function by the interaction between wheel and track.
The function of train braking system braking is realized by the method for pressure m, often cause the on-position of fore-aft vehicle in train inconsistent thus causing bigger impact of collision, when this is mainly due to pressure m, in train pipe, compressed-air actuated pressure changes what transmission caused, impact of collision brings huge potential safety hazard to train operation, especially lorry, producing huge longitudinal impact force during braking can directly damage workshop buffer unit.Further, since the celerity of pressure wave of the compressed air pressure change in train pipe is limited during transmission braking, so may result in the idling braking time of train and lengthen, and then the prolongation of braking distance can be caused.The prolongation of braking distance can to train, and especially running of bullet train constitutes bigger potential safety hazard.
Summary of the invention
One or more in the problems referred to above that prior art exists, the present invention proposes a kind of rail vehicle Pneumatic brake systems.
Accompanying drawing explanation
Below, in conjunction with accompanying drawing, the preferred embodiment of the present invention being described in more detail, Fig. 1 is the schematic diagram of the rail vehicle Pneumatic brake systems of an embodiment according to invention.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in inventive embodiments, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not paying creative work premise, broadly fall into the scope of protection of the invention.
Below in conjunction with accompanying drawing, one embodiment of the present of invention is described.In FIG, reservoir 1 storing compressed air, compression air is provided during for air damping.
Air damping controls module, mainly includes air pressure apparatus for adjusting force, pressure limiting equipment, flow amplification device.Described pressure-regulating device receives braking instruction and determines pre-control air pressure, by described flow amplification device, pre-control pressure is carried out Flow amplification.When brake hard, described pressure limiting equipment limits the size of pre-governor pressure, it is prevented that produce excessive brake force；
Rising bow controls module, receives instruction and controls the rising bow of pantograph and drop bow；
Stucco controls module, controls compression air under certain condition to track stucco；
Park control module, receive instruction and control applying and the alleviation of parking brake；
Air feed controls module with empty spring, controls total wind direction brakes air feed and to air spring air feed；
Antiskid device, receives instruction and carries out anti-sliding control；
Brake, receives compression air from described flow amplification device and produces brake force.
Fig. 1 is the schematic diagram of rail vehicle Pneumatic brake systems 100 according to an embodiment of the invention, wherein may include that reservoir 1；Air damping controls module 2.1；；Air feed controls module 2.2 with empty spring；Park control module 2.3；Stucco controls module 2.4；Rising bow controls module 2.5；Antiskid device 3；Brake 4.
In rail vehicle, driver or control loop send rail vehicle braking instruction.Air pressure apparatus for adjusting force, the empty switching valve of such as electricity, receive this braking instruction, and determine pre-control air pressure according to the braking instruction received, this pre-control pressure arrives brake 4 through flow amplification device (such as relay valve), antiskid device 3, thus producing corresponding brake force, train is implemented braking.Pressure limiting equipment works under special operation condition, and pre-control pressure is limited.Flow amplification device (such as relay valve) is used for carrying out Flow amplification, and makes the brake force that brake provides change with the change of pre-control pressure.Brake can be nipper units and brake lining, it is possible to is tread braking unit and brake shoe, or other have the device of this function.
So far, it is possible to achieve service braking under different loads and level and emergency braking function.
Antiskid device 3 receives control instruction, carries out sliding control.
It should be noted that on schematic diagram basis shown in Fig. 1, it is possible to control the break-make of this path thus realizing the switching of height brake force by arranging electromagnetic valve in the pressure translated channel of flow amplification device (such as relay valve)；Can also according to the needs of control, monitoring, diagnosis, maintenance etc., arrange more sensor, pressure switch or cock etc., or for carry out the optimization of bulk and the facility of inspection operation, can by above-mentioned element portion or be all integrated in a module, it is accordingly to be regarded as the optimization of this method, comprises in the present invention.
On the basis realizing braking function, the function of brakes is carried out modular configuration, such that it is able to realize, by different combinations, the air damping configuration that different automobile types requires.As it is shown in figure 1, the function of brakes be divided into brake control function, park control function, air feed controls function with empty spring, rising bow controls function and stucco control function, these functions almost include the functional requirement to brakes of all vehicles.The functional module of the corresponding a set of entity of corresponding each function, to take into full account versatility and standardization during module design, thus the high, medium and low configuration of different automobile types can be realized.Illustrate: as stucco controls functional module, the existing stucco unrelated with speed controls module, and the stucco also comprising relevant to speed point of high, low speed switching controls module.Additionally, for the difference of same train difference car body functional module configuration, the functional module installation dimension of apolegamy is identical, controls module such as rising bow and stucco controls module.In a word, the present invention can carry out different grades of distributing rationally according to the real needs of different automobile types and then to brakes.Most basic function is brake control function, goes up on this basis and can combine extension according to the requirement of concrete car load, and each combination is all the embodiment of a set of Pneumatic brake systems.
Brake control module generally comprises pressure-regulating device (being generally made up of electromagnetic valve and pressure transducer), pressure limiting equipment (being generally bare weight valve), flow amplification device (being generally relay valve), pressure switch, pressure transducer and cock etc. and forms.The function of pressure-regulating device is to generate pre-control pressure.The function of flow amplification device is that pre-control pressure is carried out Flow amplification.Pressure limiting equipment is in the size of the pre-governor pressure of brake hard limit, it is prevented that produce excessive brake force.Pressure switch is mainly used for status monitoring.Pressure transducer is mainly used for control, status monitoring and diagnosis.Cock mainly controls being switched on and off of gas circuit, maintains easily and overhauls.
Rising bow controls module and generally comprises the parts such as one way stop peturn valve, cleaner, electromagnetic valve.Compression air is by check-valves, after cleaner, is connected or blocks the compressed-air actuated output of control by electromagnetic valve or downstream compressor air is arranged air, thus realizing the rising bow of pantograph or dropping bow.
Stucco controls module and generally comprises the band electrical contact cutout cock with isolation features, has the air relief valve of voltage regulation function and controls the electromagnetic valve of compression air break-make.When after stucco function activation, under compressed-air actuated effect, the sand grains in sandbox can pass through to be arranged on sand sprayer bottom sandbox and enter sand pipe, finally by stucco nozzle to track stucco.Control compression air under certain condition to track stucco.
Park control module and generally comprise pressure transducer, with the air relief valve of voltage regulation function, two manually controllable five-way electromagnetic valves, and be used for preventing the double check valve of the superposition of air service braking power and parking brake power.By controlling compressed-air actuated output or emptying the alleviation or the applying that control parking brake.Park cylinder maybe the compression air emptying parked in cylinder is controlled alleviation or the applying of parking brake by compression air is exported.
Air feed controls module with empty spring, generally comprises pressure transducer, cleaner, cutout cock, overflow valve, air relief valve, check valve and pressure-measuring-point, is used for controlling total wind direction brakes air feed and to air spring air feed.
The present invention relates to a kind of method that realizes of EMU, intercity EMUs and city railway vehicle air damping and device.The function of air damping is the operation conditions according to train, makes train safe stop by implementing service braking and brake hard.This Pneumatic brake systems is to receive the Pneumatic brake systems that the signal of telecommunication controls to be braked, but not realizes train braking by the mode of pressure m.The characteristic of this Pneumatic brake systems is on the basis realizing braking function, the function of brakes has been carried out modular configuration, the function of brakes is divided into brake control function, parks control function, air feed and empty spring and control function, rising bow controls function and stucco controls function etc., these functions almost include the functional requirement to brakes of all vehicles, realize, by different combinations, the air damping configuration that different automobile types requires.
The device that realizes of air damping includes: air damping controls module, antiskid device, brake and reservoir etc..
Air damping controls module and receives control signal, and output squeezing air is filled with the checking cylinder of brake, produces to hinder the brake force of train operation.
Situation according to train foundation brake and adhesion is utilized requirement, this method realizing air damping function can be constant force control, it may be assumed that certain brake force is corresponding with corresponding handle level.Can also be deceleration-based controller, it may be assumed that under a certain level, though along with train speed be continually changing handle level invariant position, the brake force of train and deceleration also according to set desired deceleration curve in continuous change.
The invention has the beneficial effects as follows and brake force can be regulated accurately；Can effectively reduce longitudinal impact force during rail traffic vehicle braking；Adhesion can be utilized fully, shorten train braking distance；Anti-sliding control can be effectively taking place, it is prevented that wheel flat.The function of train air braking simultaneously can carry out flexible configuration according to the specific requirement of rail traffic vehicles different automobile types, has technology motility and the economic benefit of the best.
Above-described embodiment is used for illustrative purposes only, and is not limitation of the present invention, about the those of ordinary skill of technical field, without departing from the present invention, can also making a variety of changes and modification, therefore, all equivalent technical schemes also should belong to category disclosed by the invention.
Claims (14)
1. a rail vehicle Pneumatic brake systems, including:
Reservoir, storage compression air；
Air damping controls module, mainly include air pressure apparatus for adjusting force, pressure limiting equipment, flow amplification device, described air pressure apparatus for adjusting force receives braking instruction and determines pre-control air pressure, by described flow amplification device, pre-control pressure is carried out Flow amplification, when brake hard, described pressure limiting equipment limits the size of pre-governor pressure, it is prevented that produce excessive brake force；
Rising bow controls module, receives instruction and controls the rising bow of pantograph and drop bow；
Stucco controls module, controls compression air under certain condition to track stucco；
Park control module, receive instruction and control applying and the alleviation of parking brake；
Air feed controls module with empty spring, controls total wind direction brakes air feed and to air spring air feed；
Antiskid device, receives instruction and carries out anti-sliding control；
Brake, receives compression air from described flow amplification device and produces brake force.
2. rail vehicle Pneumatic brake systems according to claim 1, it is characterised in that described rail vehicle Pneumatic brake systems also includes pressure limiting equipment, and described pressure limiting equipment is arranged on described flow amplification device upstream.
3. rail vehicle Pneumatic brake systems according to claim 2, it is characterised in that described rail vehicle Pneumatic brake systems also includes antiskid device, and described antiskid device is connected between described flow amplification device and described brake.
4. rail vehicle Pneumatic brake systems according to claim 3, it is characterised in that described rail vehicle Pneumatic brake systems also includes flow amplification device, described flow amplification device is connected between described pressure limiting equipment and described brake.
5. the rail vehicle Pneumatic brake systems according to any one of claim 1-4, it is characterised in that described rail vehicle Pneumatic brake systems also includes rising bow and controls module.
6. the rail vehicle Pneumatic brake systems according to any one of claim 1-4, it is characterised in that described rail vehicle Pneumatic brake systems also includes parking control module.
7. the rail vehicle Pneumatic brake systems according to any one of claim 1-4, it is characterised in that described rail vehicle Pneumatic brake systems also includes stucco and controls module.
8. the rail vehicle Pneumatic brake systems according to any one of claim 1-4, it is characterised in that also include air feed and empty spring controls module.
9. the rail vehicle Pneumatic brake systems according to any one of claim 1-4, it is characterized in that, needs according to control, monitoring, diagnosis, maintenance etc., by element portion such as sensor, pressure switch or cocks or be all integrated in a module, to carry out space optimization and maintenance facility.
10. the rail vehicle Pneumatic brake systems according to any one of claim 1-4, it is characterised in that the braking energy source of described rail vehicle Pneumatic brake systems is compression air, and compression air is provided by the blast main of through permutation.
11. the rail vehicle Pneumatic brake systems according to any one of claim 1-4, it is characterised in that described rail vehicle Pneumatic brake systems train pipe can also be set, train pipe participate in control for brake generally rescue or loopback operating mode under use.
12. the rail vehicle Pneumatic brake systems according to any one of claim 1-4, it is characterised in that the function modoularization of described brakes.
13. the rail vehicle Pneumatic brake systems according to any one of claim 1-4, it is characterised in that the apolegamy of described functional module, it is essential functional module that air damping controls module, and other functional modules are matched according to train demand.
14. a rail vehicle, it is characterised in that described rail vehicle has the rail vehicle Pneumatic brake systems according to any one of claim 1-13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610195141.2A CN105774785A (en) | 2016-03-30 | 2016-03-30 | Railway vehicle air brake system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610195141.2A CN105774785A (en) | 2016-03-30 | 2016-03-30 | Railway vehicle air brake system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105774785A true CN105774785A (en) | 2016-07-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610195141.2A Pending CN105774785A (en) | 2016-03-30 | 2016-03-30 | Railway vehicle air brake system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105774785A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109383532A (en) * | 2017-08-03 | 2019-02-26 | 中车唐山机车车辆有限公司 | Increasing stick control method and device used for rail vehicle |
| CN113060113A (en) * | 2021-03-10 | 2021-07-02 | 交控科技股份有限公司 | Safe standby brake anti-skid system and method for railway vehicle-mounted brake control |
| EP3828054A4 (en) * | 2018-11-15 | 2022-05-11 | CRRC Zhuzhou Locomotive Co., Ltd. | Electric-air brake |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109383532A (en) * | 2017-08-03 | 2019-02-26 | 中车唐山机车车辆有限公司 | Increasing stick control method and device used for rail vehicle |
| EP3828054A4 (en) * | 2018-11-15 | 2022-05-11 | CRRC Zhuzhou Locomotive Co., Ltd. | Electric-air brake |
| CN113060113A (en) * | 2021-03-10 | 2021-07-02 | 交控科技股份有限公司 | Safe standby brake anti-skid system and method for railway vehicle-mounted brake control |
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Effective date of registration: 20180305 Address after: 100844 Fuxing Road, Beijing, Haidian District, No. 10 Applicant after: CHINA RAILWAY CORPORATION Applicant after: China Academy of Railway Sciences Applicant after: Beijing Zongheng Electromechanical Technology Development Co., Ltd. Applicant after: Locomotive & Car Research Institute, China Academy of Railway Sciences Address before: 100081 Beijing city Haidian District Daliushu Road No. 2 Applicant before: China Academy of Railway Sciences Applicant before: Beijing Zongheng Electromechanical Technology Development Co., Ltd. Applicant before: Locomotive & Car Research Institute, China Academy of Railway Sciences |
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Application publication date: 20160720 |
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