CN208978864U - A kind of subway train electropneumatic emergency braking apparatus - Google Patents
A kind of subway train electropneumatic emergency braking apparatus Download PDFInfo
- Publication number
- CN208978864U CN208978864U CN201821281539.9U CN201821281539U CN208978864U CN 208978864 U CN208978864 U CN 208978864U CN 201821281539 U CN201821281539 U CN 201821281539U CN 208978864 U CN208978864 U CN 208978864U
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- China
- Prior art keywords
- electropneumatic
- valve
- emergency braking
- brake
- pressure
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Abstract
The utility model relates to a kind of subway train electropneumatic emergency braking apparatus, comprising: the brake apparatus with brake monitor, the electropneumatic regulating device with pressure sensor, the emergency braking apparatus being connected in series with electromagnetism emergency brake and pressure reducer.The input terminal of shuttle valve device is connected to the output end of electric braking device and the pneumatic output terminal of emergency braking apparatus, and the output end of shuttle valve device is connected to control valve gear, and the upstream of checking cylinder is arranged in control valve gear.Brake apparatus is a kind of direct brake apparatus, which is a kind of electropneumatic emergency braking apparatus, and the pressure sensor of electropneumatic regulating device is connected to the output end of shuttle valve device.
Description
Technical field
The utility model belongs to the technical field that subway train is braked more particularly to a kind of structure is simple, by single urgent
The electropneumatic emergency braking apparatus directly braked that brake valve is constituted.
Background technique
Subway train service braking includes electric braking and air damping, the two cooperation, electric pneumatic breaking, be exactly it is a kind of with
Associated brake mode based on electric braking, supplemented by air damping, electro pneumatic braking system is mainly by electric-control system and pneumatic system group
At electricity idle running changing device is the core of entire braking system, and the working principle that electricity idle running is changed is: chamber volume sensor feedback
The signal of back pressure, the severity of braking that homologous ray is formulated compare, and obtain error amount, carry out corresponding operation to error, repair
The duty ratio of the signal of positive driving charge valve and exhaust valve makes system be finally reached required system to change the pressure of chamber volume
Fatigue resistance.The valve gear device of accident brake is by brake valve, relief valve and control valve group at and by electrical in the prior art
Brake circuit and braking Releasing loop control；The pressure input of the pressure sensor of electropneumatic regulating device is connected to electronic
The output end of brake apparatus, and output end is controlled by electric controller；But its structure is complex, and in case of emergency, not
It can effectively realize emergency braking.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, it is simple to provide a kind of structure, by single tight
The electropneumatic emergency braking apparatus directly braked that anxious brake valve is constituted.
The utility model is achieved through the following technical solutions:
A kind of subway train electropneumatic emergency braking apparatus, including electric braking device, emergency braking apparatus, shuttle valve dress
It sets, control valve gear and checking cylinder, electric braking device includes brake monitor and electropneumatic regulating device, and electropneumatic is adjusted
Device has pressure sensor, exhaust valve, shut-off valve；Accident brake device includes electromagnetism emergency brake and urgent with electromagnetism
The concatenated pressure reducer of brake valve；The input terminal of shuttle valve device is attached to the output end and emergency braking apparatus of electric braking device
Pneumatic output terminal, and the output end of shuttle valve device is connected to control valve gear, and the upstream of checking cylinder is arranged in control valve gear.
In order to realize the purpose, the valve gear of the application is electromagnetism emergency brake valve and is worked according to close loop, and electropneumatic is adjusted
The pressure sensor of device is connected to the output end of shuttle valve device.
Compared with prior art, the beneficial effects of the utility model are: the utility model structure is simple, accident brake
Valve gear be made of single emergency brake and worked according to close loop, it is only necessary to operation is primary；Pressure sensor connection
To the output end of shuttle valve device, the pilot pressure for controlling valve gear is stored, and is controlled by the brake monitor of brake apparatus.
In the case where emergency braking, emergency brake pressure is allowed by electropneumatic regulating device to pressure is increased to shuttle valve device defeated
Outlet is in higher pressure force value or more, therefore brake pressure increases, and shuttle valve can configure different model, be configured to dual check
Valve can be more widely used, and cheap.
Detailed description of the invention
Fig. 1 is the braking device with shuttle valve and relay valve.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
According to Fig. 1, a kind of subway train electropneumatic emergency braking apparatus, the electric braking including brake monitor 1
Device, electropneumatic regulating device are connected to brake monitor 1, and electropneumatic regulating device has exhaust valve 2 and shut-off valve 3,
The input terminal E1 of the connection input shuttle valve device 4 of output terminals A 1 of electropneumatic regulating device, shuttle valve device 4 can be by dual check
Valve group at.Another input terminal E2 of shuttle valve device 4 is the pneumatic output terminal A3 by piping connection to emergency braking apparatus, tightly
Anxious brake apparatus has pressure reducer 5 and electromagnetism emergency brake 6, and pressure reducer 5 and electromagnetism emergency brake 6 are connected in series.Electromagnetism
Emergency brake 6 works according to closed-circuit principle, i.e., in lasting loading current, emergency brake is kept to close.Electromagnetism emergency braking
Valve 6 by emergency braking circuit 7 by being controlled.The output terminals A 2 of shuttle valve device 4 is connected to control valve in the form of loaded stopper
The input terminal E3 of device 8, control valve gear are relay valve 8, another input terminal E4 of relay valve 8 is pressurizeed by load pressure P1,
The checking cylinder 11 that 8 downstream of relay valve is arranged in can bear to load relevant brake pressure；Another input terminal E5 of relay valve 8
It is connected to R pressure vessel, and the check-valves by being arranged on pipeline is turned off.
As shown in Figure 1, the input terminal E6 of the first pressure sensor 9 in electropneumatic regulating device is connected to shuttle valve dress
It sets on the pipeline between 4 output terminals A 2 and the input terminal E3 of relay valve 8, the other end of first pressure sensor 9 is via pipeline
It is connected to brake monitor 1.In order to monitor load pressure, the input terminal of second pressure sensor 10 is connected to the defeated of relay valve 8
Enter and hold E4, the other end of second pressure sensor 10 is via piping connection to brake monitor 1.
The course of work of brake apparatus:
In subway train braking system, electromagnetism emergency brake 6 is controlled by emergency braking circuit 7, and electromagnetism is promptly made
Dynamic valve 6 is closed, and the input terminal E2 pressure of shuttle valve device 4 is 0 bar at this time.If the control signal of brake is sent out by engine driver
Out, the setting value of electropneumatic regulating device is transferred to brake monitor 2.The pilot pressure of 8 input terminal E3 of relay valve is by cutting
Only valve 3 and exhaust valve 2 control；Pressure in checking cylinder 11 can be increased by the energization of shut-off valve 3 and exhaust valve 2, cut
Only valve 3 be powered when checking cylinder 11 in pressure remain unchanged, pilot pressure due to shut-off valve 3 and exhaust valve 2 energization and reduce,
Pilot pressure is stored and is adjusted by first pressure sensor 9, and relay valve 8 converts pilot pressure, and load pressure P1 is allowed to input,
And pressure is input in checking cylinder 11；And when system does not need braking, shut-off valve 3 and exhaust valve 2 are no longer powered, checking cylinder
13 pressure release.
In the case where emergency braking, emergency braking circuit 7 is obstructed, sets emergency brake pressure from there through pressure reducer 9,
And act on the input terminal E2 of shuttle valve device 4, emergency brake pressure is passed into relay valve 8.In addition, emergency brake pressure is logical
The first pressure sensor 9 crossed in brake monitor 1 and electropneumatic regulating device be arranged it is spare, when electromagnetism emergency brake 6
When breaking down, stand-by provision is activated use, also, when electropneumatic regulating device is overloaded, defeated to checking cylinder 11
The emergency braking for sending brake pressure to be higher than emergency brake pressure.
Claims (4)
1. a kind of subway train electropneumatic emergency braking apparatus, including electric braking device, emergency braking apparatus, shuttle valve device,
Valve gear and checking cylinder are controlled, electric braking device includes brake monitor and electropneumatic regulating device, and electropneumatic adjusts dress
Set with exhaust valve, shut-off valve and first pressure sensor, wherein exhaust valve and shut-off valve be connected in parallel brake monitor and
Between shuttle valve device；Emergency braking apparatus has pressure reducer and electromagnetism emergency brake, pressure reducer and electromagnetism emergency brake string
Connection connection, electromagnetism emergency brake are controlled by emergency braking circuit；The output terminals A 1 of electropneumatic regulating device connects input
The first input end E1 of shuttle valve device, the second input terminal E2 of shuttle valve device are connected to the pneumatic output terminal of emergency braking apparatus
A3, the output terminals A 2 of shuttle valve device are connected to the input terminal E3 of control valve gear, control another input terminal E4 of valve gear by
The downstream of control valve gear is arranged in load pressure P1 pressurization, checking cylinder；First pressure in electropneumatic regulating device passes
The input terminal E6 of sensor is connected on the pipeline between the output terminals A 2 of shuttle valve device and the input terminal E3 of control valve gear, the
The other end of one pressure sensor is via piping connection to brake monitor.
2. a kind of subway train electropneumatic emergency braking apparatus according to claim 1, it is characterised in that: further include
Two pressure sensors, the input terminal of second pressure sensor are connected to the input terminal E4 of control valve gear, second pressure sensor
The other end via piping connection to brake monitor.
3. a kind of subway train electropneumatic emergency braking apparatus according to claim 1 or 2, it is characterised in that: described
Control valve gear is relay valve.
4. a kind of subway train electropneumatic emergency braking apparatus according to claim 1 or 2, it is characterised in that: described
Shuttle valve device be configured to be made of double check valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821281539.9U CN208978864U (en) | 2018-08-09 | 2018-08-09 | A kind of subway train electropneumatic emergency braking apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821281539.9U CN208978864U (en) | 2018-08-09 | 2018-08-09 | A kind of subway train electropneumatic emergency braking apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208978864U true CN208978864U (en) | 2019-06-14 |
Family
ID=66781236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821281539.9U Expired - Fee Related CN208978864U (en) | 2018-08-09 | 2018-08-09 | A kind of subway train electropneumatic emergency braking apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208978864U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111775999A (en) * | 2020-07-14 | 2020-10-16 | 中车株洲电力机车有限公司 | Train pipe quantitative pressure reduction control system and method |
| CN111963587A (en) * | 2020-09-03 | 2020-11-20 | 合肥中辰轻工机械有限公司 | Pneumatic control system and method of clutch |
| CN112061102A (en) * | 2020-08-27 | 2020-12-11 | 东风商用车有限公司 | Combination valve device for controlling compressed air distribution for vehicle |
| CN112572392A (en) * | 2019-09-30 | 2021-03-30 | 湖南中车智行科技有限公司 | Vehicle braking system and vehicle braking system control method |
-
2018
- 2018-08-09 CN CN201821281539.9U patent/CN208978864U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112572392A (en) * | 2019-09-30 | 2021-03-30 | 湖南中车智行科技有限公司 | Vehicle braking system and vehicle braking system control method |
| CN112572392B (en) * | 2019-09-30 | 2022-04-26 | 湖南中车智行科技有限公司 | Vehicle braking system and vehicle braking system control method |
| CN111775999A (en) * | 2020-07-14 | 2020-10-16 | 中车株洲电力机车有限公司 | Train pipe quantitative pressure reduction control system and method |
| CN111775999B (en) * | 2020-07-14 | 2021-06-04 | 中车株洲电力机车有限公司 | Train pipe quantitative pressure reduction control system and method |
| CN112061102A (en) * | 2020-08-27 | 2020-12-11 | 东风商用车有限公司 | Combination valve device for controlling compressed air distribution for vehicle |
| CN111963587A (en) * | 2020-09-03 | 2020-11-20 | 合肥中辰轻工机械有限公司 | Pneumatic control system and method of clutch |
| CN111963587B (en) * | 2020-09-03 | 2021-12-07 | 合肥中辰轻工机械有限公司 | Pneumatic control system and method of clutch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190614 Termination date: 20200809 |