CN201646705U - Traffic vehicle brake system of vehicle-control track - Google Patents
Traffic vehicle brake system of vehicle-control track Download PDFInfo
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- CN201646705U CN201646705U CN2010201245412U CN201020124541U CN201646705U CN 201646705 U CN201646705 U CN 201646705U CN 2010201245412 U CN2010201245412 U CN 2010201245412U CN 201020124541 U CN201020124541 U CN 201020124541U CN 201646705 U CN201646705 U CN 201646705U
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- valve
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- load
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- Braking Systems And Boosters (AREA)
Abstract
The utility model provides a traffic vehicle brake system of a vehicle-control track, comprising a brake unit. The brake unit comprises an EP valve, an emergency valve, a pressure switch, an empty and load valve and a relay valve, wherein the EP valve is connected with the emergency valve by a pipeline; the emergency valve is connected with the pressure switch by a pipeline; the pressure switch is connected with the empty and load valve by a pipeline; the empty and load valve is connected with the relay valve by a pipeline; the emergency valve is generally electrified under normal condition; and the pipeline between the emergency valve and the empty and load valve is provided with a protective valve which is in a breakdown state under normal condition.
Description
Technical field
The utility model relates to the brake system of rail traffic vehicles, relates in particular to a kind of rail traffic vehicle braking system of car load control formula.
Background technology
Brak control unit (BCU) is the core of rail traffic vehicle braking system, its radical function is to convert the braking instruction electric signal that braking electronic control unit (BECU) sends to corresponding pre-control presssure signal by the EP valve, and when emergency braking, carry out corresponding load compensation correction by empty and load brake regulator, make rail traffic vehicles according to instruction brake activation and alleviation.
The brak control unit that existing rail traffic vehicle braking system adopts sees also shown in Figure 1, it mainly comprises EP valve 1, emergency valve 2, empty and load brake regulator 5, relay valve 8, pressure switch 3, pressure sensor 11, pressure sensor 7 and corresponding test splice, on the gas path plate that is installed in an aluminum alloy that above-mentioned parts is all concentrated.EP valve 1 comprises release valve and brake activation valve, and described EP valve 1 is formed the closed loop control unit with pressure sensor 7.By this close-loop control mode, can be so that the pre-control force value that EP valve 1 produces conform to the braking instruction electric signal size that BECU sends, pressure sensor 7 is used to detect the force value of EP valve.Emergency valve 2 is under normal circumstances charged, and emergency valve 2 dead electricity when emergency braking, the pressurized air of coming the self-retention reservoir directly flow to relay valve 8 by emergency valve 2 through empty and load brake regulator 5 makes railcar produce emergency braking.Empty and load brake regulator 5 radical functions are sizes of braking force when adjusting emergency braking according to load, and 5 prevention effects of empty and load brake regulator prevent EP valve 1 Control Failure when service braking.Empty and load brake regulator 5 mainly works when the train apply the emergency brake, when emergency braking, total airflow is when empty and load brake regulator 5, the load pressure that empty and load brake regulator 5 provides according to air suspension system carries out corresponding load compensation control, produce final control presssure, and send final control presssure to relay valve 8, make relay valve 8 rational braking force is provided for the brake cylinder in the foundation brake rigging according to different load conditions.Relay valve 8 mainly plays compressed-air actuated flow gain effect, and it can make the inflation of brake cylinder and exhaust rapider, and it has very strong air feed and air draft ability, can make foundation brake rigging brake activation or alleviation as requested.Pressure switch 3 is mainly used to monitor the pre-control force value, and whether the mode of operation to BECU feedback emergency valve 2 when emergency braking is normal.Pressure sensor 11 is mainly used to the load information to BECU feedback vehicle.Some test splices also are set so that test the pressure of each assigned address on the pipeline in the brak control unit.
About 18 hours of urban rail transit vehicles on-line operation every day, the charged all the time work of the emergency valve 2 of DC110V during this period, particularly when summer, ambient temperature was higher, the coil resistance load accumulation temperature rise of emergency valve 2, be easier to take place coil and burn out the emergency braking that causes dead electricity to produce improper situation, make passenger carrying vehicle on circulation line, be detained, make troubles for train operation organization arrangement because of braking.
The utility model content
The purpose of this utility model is in order to solve emergency valve in the intrasystem brake unit of rail traffic vehicle braking because normal fragile this problem of the improper emergency braking of train that causes of capacitor, a kind of novel brake system that is used for rail traffic vehicles is provided, and its technical scheme that adopts is as described below.
A kind of novel rail motor vehicle braking system; it comprises a brake unit; this brake unit comprises EP valve, emergency valve, pressure switch, empty and load brake regulator and relay valve; wherein the EP valve connects emergency valve by pipeline; emergency valve connects pressure switch by pipeline; pressure switch connects empty and load brake regulator by pipeline; empty and load brake regulator connects relay valve by pipeline; described emergency valve is under normal circumstances often charged; wherein, a protective valve that under normal circumstances is in power failure state is set on the pipeline between emergency valve and the empty and load brake regulator.
Wherein, a pressure sensor is set and detects force value on the pipeline between described empty and load brake regulator and the relay valve.
Wherein, whether the air pressure that pressure sensor detects the pipeline of flowing through conforms to the pressure that pressure switch is sent electric signal, does not represent that then pressure switch is in abnormal mode of operation if do not conform to.
Wherein, receive that pressure switch is being different from the electric signal that sends under the emergency valve high pressure effect just often and is then representing to detect the emergency valve et out of order when brake system.
The utility model provides a kind of novel rail motor vehicle braking system, and it comprises a brake unit, and a protective valve that under normal circumstances is in power failure state is set on emergency valve in this brake unit and the pipeline between the empty and load brake regulator.The advantage of described rail traffic vehicle braking system is; if emergency valve was because chance failure lost efficacy; then protective valve replacement emergency valve is alleviated improper emergency braking; make rail traffic vehicles can finish one day operation smoothly, described later-model rail traffic vehicle braking system effectively raises the MTBF and the fail safe guiding of system.
Description of drawings
Fig. 1 is the scheme drawing of the brak control unit that adopts of existing rail traffic vehicle braking system;
Fig. 2 is the scheme drawing of the brak control unit in the utility model embodiment middle orbit vehicular traffic brake system;
The basic symbol implication:
23 pressure switches, 24 protective valves
25 empty and load brake regulators, 27 pressure sensors
28 relay valves, 31 pressure sensors
41,42,43,45,46,47,48,49,50 pipelines
The specific embodiment
Now according to accompanying drawing also in conjunction with the embodiments, the utility model is further described.
Embodiment
See also shown in Figure 2; brak control unit among the utility model embodiment in the novel rail motor vehicle braking system comprises EP valve 21; emergency valve 22; protective valve 24; empty and load brake regulator 25; relay valve 28; pressure switch 23; pressure sensor 31; pressure sensor 27 and plurality of pipelines; wherein pipeline 41 connects emergency valve 22 and protective valve 24 through EP valve 21; pipeline 42 connects emergency valve 22; emergency valve 22 connects protective valve 24 by pipeline 43; protective valve 24 connects empty and load brake regulator 25 by pipeline 45; air suspension system connects empty and load brake regulator 25 by pipeline 46; pressure sensor 31 is located on the pipeline 46; pressure switch 23 is located on the pipeline 45; empty and load brake regulator 25 connects relay valve 28 by pipeline 48; pressure sensor 27 is located on the pipeline 48; pipeline 50 inserts relay valve 28, and pipeline 49 connects relay valve 28.
Total wind inlet Cv connecting line 41,42,50, promptly the pressurized air from reservoir can enter brak control unit by above-mentioned pipeline.Outlet C on the pipeline 49 and outlet C ' are the different outlet of pressurized air.
When emergency valve 22 is in conventional brake under the significant condition; from the pressurized air of reservoir through pipeline 41 flow through EP valve 21 enter the emergency valve 22 under the electricity condition; the pipeline 43 of flowing through again enters the protective valve 24 under the power failure state; the pipeline 45 of flowing through again enters empty and load brake regulator 25, and the pipeline 48 of flowing through again enters relay valve 28 back control relay valves 28 makes the rail traffic vehicle braking system produce normal braking by pipeline 49 output pressurized airs to the brake cylinder of foundation brake rigging.
In when, emergency valve 22 taking place being in emergency braking under the significant condition; emergency valve 22 is because external influence causes dead electricity; directly enter emergency valve 22 under the power failure state from the pressurized air of reservoir by pipeline 42; the pipeline 43 of flowing through again enters the protective valve 24 under the power failure state; the pipeline 45 of flowing through again enters empty and load brake regulator 25, and the pipeline 48 of flowing through again enters relay valve 28 control relay valves 28 makes the rail traffic vehicle braking system produce emergency braking by pipeline 49 output pressurized airs to the brake cylinder of foundation brake rigging.
In when, emergency valve 22 taking place being in conventional brake under the failure state; emergency valve 22 is because the aging dead electricity that causes of coil; from the pressurized air of reservoir through pipeline 41 flow through EP valve 21 enter the protective valve 24 under the electricity condition; the pipeline 45 of flowing through again enters empty and load brake regulator 25, and the pipeline 48 of flowing through again enters relay valve 28 back control relay valves 28 makes the rail traffic vehicle braking system produce normal braking by pipeline 49 output pressurized airs to the brake cylinder of foundation brake rigging.
When emergency valve 22 is in emergency braking under the failure state; emergency valve 22 is because the aging dead electricity that causes of coil; directly enter emergency valve 22 under the power failure state from the pressurized air of reservoir by pipeline 42; the pipeline 43 of flowing through again enters the protective valve 24 under the power failure state; the pipeline 45 of flowing through again enters empty and load brake regulator 25, and the pipeline 48 of flowing through again enters relay valve 28 back control relay valves 28 makes the rail traffic vehicle braking system produce emergency braking by pipeline 49 output pressurized airs to the brake cylinder of foundation brake rigging.
Wherein, protective valve 24 is electromagnetic valves of a two-bit triplet, and its radical function is to prevent from emergency valve 24 to cause the parking safety misadventure because the high temperature ageing et out of order causes rail traffic vehicles certain joint compartment of generation in the process of normal operation to produce emergency braking.Under the nominal situation; emergency valve 22 be in electricity condition and protective valve 24 is in power failure state, through the air of emergency valve 22 directly and empty and load brake regulator 25 conductings, when pressure switch 23 detects emergency valve 22 faults; then protective valve 24 must be electric, directly the pipeline between conducting EP valve 21 and the empty and load brake regulator 25.
Wherein, whether the inefficacy of emergency valve 22 can detect by pressure switch 23, if emergency valve 22 et out of orders, pressurized air from reservoir directly passes to pressure switch 23 places again by the emergency valve 22 of dead electricity, the pressure switch 23 of this moment is sent an electric signal and is given brake system being different under the emergency valve 22 high pressure effect just often, receive such electric signal when brake system and then represent to detect emergency valve 22 et out of orders.
Wherein, pressure sensor 27 is in the state of real-time signal piping internal pressure, if detecting the air pressure of the pipeline of flowing through, pressure sensor 27 do not reach the pressure that pressure switch 23 is sent electric signal, but pressure switch 23 has been sent electric signal to brake system, and then this situation explanation pressure switch 23 is in abnormal state of affairs; In like manner, if the air pressure that pressure sensor 27 detects the pipeline of flowing through overpressure switch 23 send the pressure of electric signal, but pressure switch 23 is not sent electric signal to brake system, illustrates also that then pressure switch 23 is in abnormal state of affairs.
Claims (2)
1. car control formula rail traffic vehicle braking system; it comprises a brake unit; this brake unit comprises EP valve, emergency valve, pressure switch, empty and load brake regulator and relay valve; wherein the EP valve connects emergency valve by pipeline; emergency valve connects pressure switch by pipeline; pressure switch connects empty and load brake regulator by pipeline; empty and load brake regulator connects relay valve by pipeline; described emergency valve is under normal circumstances often charged; it is characterized in that, a protective valve that under normal circumstances is in power failure state is set on the pipeline between emergency valve and the empty and load brake regulator.
2. car control formula rail traffic vehicle braking as claimed in claim 1 system is characterized in that, a pressure sensor is set detects force value on the pipeline between described empty and load brake regulator and the relay valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201245412U CN201646705U (en) | 2010-03-05 | 2010-03-05 | Traffic vehicle brake system of vehicle-control track |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201245412U CN201646705U (en) | 2010-03-05 | 2010-03-05 | Traffic vehicle brake system of vehicle-control track |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201646705U true CN201646705U (en) | 2010-11-24 |
Family
ID=43111929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201245412U Expired - Lifetime CN201646705U (en) | 2010-03-05 | 2010-03-05 | Traffic vehicle brake system of vehicle-control track |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201646705U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102189986A (en) * | 2010-03-05 | 2011-09-21 | 上海庞丰机电科技有限公司 | High-reliability rail transit vehicle brake system |
| CN102339058A (en) * | 2011-07-13 | 2012-02-01 | 铁道部运输局 | Digital expansion board for rail transit vehicle braking system |
| CN102951173A (en) * | 2012-11-07 | 2013-03-06 | 北京纵横机电技术开发公司 | Emergency braking device and method of braking system of railway vehicle |
| CN109249919A (en) * | 2018-09-29 | 2019-01-22 | 中车资阳机车有限公司 | A kind of hydraulic braking control unit with bare weight conversion function |
-
2010
- 2010-03-05 CN CN2010201245412U patent/CN201646705U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102189986A (en) * | 2010-03-05 | 2011-09-21 | 上海庞丰机电科技有限公司 | High-reliability rail transit vehicle brake system |
| CN102189986B (en) * | 2010-03-05 | 2013-05-08 | 上海庞丰机电科技有限公司 | High-reliability rail transit vehicle brake system |
| CN102339058A (en) * | 2011-07-13 | 2012-02-01 | 铁道部运输局 | Digital expansion board for rail transit vehicle braking system |
| CN102339058B (en) * | 2011-07-13 | 2013-03-27 | 铁道部运输局 | Digital expansion board for rail transit vehicle braking system |
| CN102951173A (en) * | 2012-11-07 | 2013-03-06 | 北京纵横机电技术开发公司 | Emergency braking device and method of braking system of railway vehicle |
| CN102951173B (en) * | 2012-11-07 | 2016-06-01 | 北京纵横机电技术开发公司 | A kind of rail vehicle braking system emergency braking apparatus and braking method thereof |
| CN109249919A (en) * | 2018-09-29 | 2019-01-22 | 中车资阳机车有限公司 | A kind of hydraulic braking control unit with bare weight conversion function |
| CN109249919B (en) * | 2018-09-29 | 2020-01-14 | 中车资阳机车有限公司 | Hydraulic braking control unit with empty-weight conversion function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170104 Address after: 331100 Fengcheng high tech Industrial Park, Jiangxi City, No. Torch Road, No. 26 Patentee after: Jiangxi Huawu Brake Co., Ltd. Address before: 200331 Shanghai City, Yangpu District Chifeng Road No. 65, room 903-63 (Tongji Science Park) Patentee before: Shanghai Pangfeng Mechanical and Electrical Technology Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101124 |