CN213502299U - Novel parking braking auxiliary relieving control system for low-floor light rail vehicle - Google Patents
Novel parking braking auxiliary relieving control system for low-floor light rail vehicle Download PDFInfo
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- CN213502299U CN213502299U CN202021828360.8U CN202021828360U CN213502299U CN 213502299 U CN213502299 U CN 213502299U CN 202021828360 U CN202021828360 U CN 202021828360U CN 213502299 U CN213502299 U CN 213502299U
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Abstract
A novel parking brake auxiliary relieving control system for a low-floor light rail vehicle relates to the field of rail transit, and solves the problems that the conventional electric control auxiliary relieving cannot be used under the condition of no electricity, the mechanical hydraulic auxiliary relieving operation steps are relatively complex, and most of the mechanical hydraulic auxiliary relieving operation steps need to be operated under the vehicle; the auxiliary relieving button is arranged on the driver platform, and the auxiliary relieving control unit is arranged on each bogie and is independent of the hydraulic braking control unit; the auxiliary relieving control unit is controlled by the auxiliary relieving button to realize auxiliary relieving of parking of each bogie; manual hydraulic pump is connected with the tribit two-way valve, and the tribit two-way valve passes through hydraulic line and parks the hydraulic pressure clamp and be connected, and this is novel to have alleviated the form with two kinds, and the vehicle is the supplementary automatically controlled of preferential use when having the electricity and is alleviated, can use manual pump hydraulic pressure again to alleviate when having no electricity, has improved the redundant reliability of system failure handling.
Description
Technical Field
The utility model relates to a track traffic field, concretely relates to novel supplementary control system that alleviates of parking braking of low-floor light rail vehicle.
Background
At present, in order to ensure the parking braking force requirement of a low-floor railway vehicle on a ramp or a garage, a foundation braking device of the railway vehicle is generally provided with a parking braking device, and the parking braking device is generally applied by spring force and relieved by hydraulic pressure. In order to ensure that the rail vehicle can be relieved of parking brake in an oil-free state, the basic brake device is usually provided with an auxiliary relief device for relieving the spring parking brake force generated by the parking brake device.
The existing auxiliary relieving method comprises electric control auxiliary relieving and mechanical hydraulic auxiliary relieving, wherein the electric control auxiliary relieving can realize remote electric control relieving in a cab, but cannot be controlled under the condition of no electricity, and is inconvenient to use; mechanical hydraulic auxiliary relief can realize hydraulic manual pump mechanical relief under the vehicle power and non-power conditions, but the operation steps are relatively complicated, and most of the operation steps need to be carried out under the vehicle.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve current automatically controlled supplementary unable under the electroless condition of alleviating and use, mechanical hydraulic pressure is supplementary to be alleviated the operating procedure and is complicated relatively, and needs the car operation scheduling problem under mostly, provides a novel parking braking of low floor light rail vehicle is supplementary to be alleviated control system.
A novel parking brake auxiliary release control system for a low-floor light rail vehicle comprises an auxiliary release button, an auxiliary release control unit, a manual hydraulic pump and a three-position two-way valve;
the auxiliary relieving button is arranged on the driver platform, and the auxiliary relieving control unit is arranged on each bogie and is independent of the hydraulic braking control unit; the auxiliary relieving button is used for controlling the auxiliary relieving control unit to realize auxiliary relieving of parking of each bogie; the manual hydraulic pump is arranged in a passenger room and a cab or is led to the cab through flexible connection, the manual hydraulic pump is connected with a three-position two-way valve, the three-position two-way valve is connected with a parking hydraulic clamp through a hydraulic pipeline, and the three-position two-way valve 4 is arranged in the interior or the exterior of the vehicle.
The invention has the beneficial effects that:
the utility model discloses alleviate automatically controlled assistance and alleviate two kinds of forms of alleviating with mechanical hydraulic pressure is supplementary and integrated, the vehicle uses the supplementary automatically controlled of preferential use when having electricity to alleviate, can use manual pump hydraulic pressure to alleviate again when electroless, and hydraulic pressure manual pump is supplementary to be alleviated as supplementary automatically controlled standby mode of alleviating, when practicing thrift the fault handling time as far as possible, has also improved the redundant reliability that system's trouble was handled.
Drawings
Fig. 1 is a block diagram of a novel parking brake auxiliary mitigation control system for a low-floor light rail vehicle according to the present invention;
fig. 2 is a schematic diagram of a novel parking brake auxiliary release control system for a low floor light rail vehicle.
Detailed Description
The embodiment is described with reference to fig. 1 and fig. 2, and a novel parking brake auxiliary release control system for a low-floor light rail vehicle comprises an auxiliary release button 1, an auxiliary release control unit 2, a manual hydraulic pump 3 and a three-position two-way valve 4; the auxiliary relieving button 1 is arranged on a driver platform, and the auxiliary relieving control unit 2 is arranged on each bogie and is independent of the hydraulic braking control unit;
the auxiliary relieving button 1 is used for controlling the auxiliary relieving control unit 2 to realize the auxiliary relieving of the parking of each bogie; the manual hydraulic pump 3 is connected with a three-position two-way valve 4, and the three-position two-way valve 4 is connected with a parking hydraulic clamp through a hydraulic pipeline.
In this embodiment, set up an supplementary control unit (EDHL)2 of alleviating independent of hydraulic braking control unit at every bogie, the supplementary button 1 of alleviating of accessible driver's platform, EDHL realizes the supplementary of parking of each bogie and alleviates.
When the EDHL can not realize the truck alleviation, a manual pump can be applied to alleviate the truck with the brake unreeased, and the manual pump is placed in a passenger room, a driver room or a driver room is led by flexible connection. The hydraulic pipeline finally used for assisting electric control relieving and assisting mechanical hydraulic relieving is the same pipeline, and switching of assisting electric control relieving and assisting mechanical hydraulic relieving (which can be arranged outside and inside a vehicle) is realized through the switching position of the three-position two-way valve 4.
In this embodiment, the mechanical relieving operation steps of the three-position two-way valve 4 and the manual hydraulic pump are as follows:
firstly, a quick-change connector on a manual hydraulic pump 3 is connected with a quick-change connector (A position) on a three-position two-way valve 4 on a bogie;
then, the handle of the three-position two-way valve 4 is placed in the vertical position (position B); oil is injected into the hydraulic pipeline through the manual hydraulic pump 3, so that the pipeline pressure reaches more than 110bar, and the manual auxiliary release of the passive parking clamp 5 of the non-release bogie is realized;
finally, the handle of the three-position two-way valve 4 is placed at the position (C position) of 45 degrees at the lower left, and the relieving state is kept; vehicle rescue can be realized by detaching the manual hydraulic pump 3.
The utility model discloses compromise the supplementary automatically controlled reliability of alleviating of swift and the supplementary alleviating of hydraulic machine, when practicing thrift fault handling time, also improved system fault handling's redundant reliability.
Claims (3)
1. The utility model provides a control system is alleviated in supplementary of novel parking braking of low-floor light rail vehicle which characterized by: the device comprises an auxiliary relieving button (1), an auxiliary relieving control unit (2), a manual hydraulic pump (3) and a three-position two-way valve (4);
the auxiliary relieving button (1) is arranged on the driver platform, and the auxiliary relieving control unit (2) is arranged on each bogie and is independent of the hydraulic braking control unit;
the auxiliary relieving button (1) is used for controlling the auxiliary relieving control unit (2) to realize auxiliary relieving of parking of each bogie;
the manual hydraulic pump (3) is connected with the three-position two-way valve (4), and the three-position two-way valve (4) is connected with the parking hydraulic clamp through a hydraulic pipeline.
2. The novel parking brake auxiliary mitigation control system of a low-floor light rail vehicle of claim 1, wherein: the manual hydraulic pump (3) is arranged in a passenger room and a driver cab or is led to the driver cab through flexible connection.
3. The novel parking brake auxiliary mitigation control system of a low-floor light rail vehicle of claim 1, wherein: the three-position two-way valve (4) is arranged in the vehicle or outside the vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021828360.8U CN213502299U (en) | 2020-08-27 | 2020-08-27 | Novel parking braking auxiliary relieving control system for low-floor light rail vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021828360.8U CN213502299U (en) | 2020-08-27 | 2020-08-27 | Novel parking braking auxiliary relieving control system for low-floor light rail vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213502299U true CN213502299U (en) | 2021-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021828360.8U Active CN213502299U (en) | 2020-08-27 | 2020-08-27 | Novel parking braking auxiliary relieving control system for low-floor light rail vehicle |
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| CN (1) | CN213502299U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113895476A (en) * | 2021-09-29 | 2022-01-07 | 中车南京浦镇车辆有限公司 | Parking brake control method for electromechanical brake system of urban rail vehicle |
| CN114261421A (en) * | 2021-11-18 | 2022-04-01 | 中车株洲电力机车有限公司 | Hydraulic transmission manual release auxiliary mechanism and method for parking brake cylinder |
-
2020
- 2020-08-27 CN CN202021828360.8U patent/CN213502299U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113895476A (en) * | 2021-09-29 | 2022-01-07 | 中车南京浦镇车辆有限公司 | Parking brake control method for electromechanical brake system of urban rail vehicle |
| CN114261421A (en) * | 2021-11-18 | 2022-04-01 | 中车株洲电力机车有限公司 | Hydraulic transmission manual release auxiliary mechanism and method for parking brake cylinder |
| CN114261421B (en) * | 2021-11-18 | 2023-01-20 | 中车株洲电力机车有限公司 | Hydraulic transmission manual release auxiliary mechanism and method for parking brake cylinder |
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