CN205292615U - Hydraulic braking controlling means for tram - Google Patents
Hydraulic braking controlling means for tram Download PDFInfo
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- CN205292615U CN205292615U CN201520972675.2U CN201520972675U CN205292615U CN 205292615 U CN205292615 U CN 205292615U CN 201520972675 U CN201520972675 U CN 201520972675U CN 205292615 U CN205292615 U CN 205292615U
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Abstract
The utility model relates to a hydraulic braking controlling means for tram constitutes by pressure supply subtotal pressure control is partial, and the pressure control part includes: with the energy storage mouth of energy storage ware intercommunication, with pressure delivery outlet, proportional pressure regulating valve, emergency braking solenoid valve and the parking brake solenoid valve of checking cylinder intercommunication, energy storage mouth and proportional pressure regulating valve's oil inlet and connection pressure supplies with the output port of part, the oil inlet of emergency braking solenoid valve is connected to proportional pressure regulating valve's oil -out, proportional pressure regulating valve's oil return opening passes through the oil -out connection of tube coupling oil tank, emergency braking solenoid valve the pressure delivery outlet, the oil tank is connected through the parking brake solenoid valve to the oil return opening of emergency braking solenoid valve. The utility model discloses a hydraulic circuit design has been simplified in ratio pressure reducing valve control, has reduced hydraulic component, has improved the reliability of system, and owing to adopt the open loop control mode, simplified hydraulic system's control strategy greatly.
Description
Technical field
This utility model relates to a kind of tramcar hydraulic braking control device, belongs to rail vehicle technical field.
Background technology
What traditional control program adopted is back-up valve (AS) and the form that dropping valve (AT) combines carry out the pressure adjustment of service braking, brake hard. The response speed of hydraulic system is required height by this scheme, owing to adopting close-loop control mode, controls relative complex.
Summary of the invention
This utility model to solve technical problem is that: the shortcoming overcoming above-mentioned technology, it is provided that a kind of tramcar hydraulic braking control device, and adoption rate air relief valve controls, and simplifies Hydraulic Circuit Design, decreases Hydraulic Elements, improves the reliability of system; And owing to adopting open loop control mode, enormously simplify the control strategy of hydraulic system.
In order to solve above-mentioned technical problem, the technical scheme that the utility model proposes is: tramcar hydraulic braking control device, it is characterized in that: be made up of pressure feed part and pressure controlling section, described pressure feed part includes: fuel tank, oil pump, check-valves and filter, and the oil in fuel tank is sequentially passed through filter and check-valves and carries to pressure controlling section by described oil pump, described pressure controlling section includes: the accumulation of energy mouth connected with accumulator, the pressure output connected with checking cylinder, proportional pressure valve, brake hard electromagnetic valve and parking brake electromagnetic valve, the oil-in of described accumulation of energy mouth and proportional pressure valve and the output port of Bonding pressure supply portion, the oil-out of proportional pressure valve connects the oil-in of brake hard electromagnetic valve, the oil return opening of proportional pressure valve connects fuel tank by pipeline, the oil-out of brake hard electromagnetic valve connects described pressure output, the oil return opening of brake hard electromagnetic valve connects fuel tank through parking braking electromagnetic valve.
This utility model also has following improvement:
1, described pressure controlling section also includes: safety arrestment regulates valve, and the oil return opening of described brake hard electromagnetic valve regulates valve through this safety arrestment and is connected with fuel tank.
2, described pressure controlling section also includes the energy-storage pressure sensor connected with accumulation of energy mouth and the brake-pressure sensor connected with pressure output.
3, described pressure feed part also includes relief valve, and the oil-in of described relief valve connects the delivery outlet of oil pump, and the oil-out of relief valve is connected with fuel tank.
4, described pressure controlling section also includes Manual relief valve, and the oil-in of described Manual relief valve connects with accumulation of energy mouth, and the oil-out of Manual relief valve connects fuel tank.
This hydraulic control device and brake clamp with the use of, hydraulic pressure is produced by hydraulic control device and is fed directly to clamp, carries out alleviating/braking. This proportional pressure valve controls the gentle decompression force of applying pressure of clamp according to the BECU signal of telecommunication transmitted. Along with the change of relieving hydraulic power, brake force changes step by step also with the effect of hydraulic braking control device.
This utility model adoption rate air relief valve controls, and simplifies Hydraulic Circuit Design, decreases Hydraulic Elements, improves the reliability of system; And owing to adopting open loop control mode, enormously simplify the control strategy of hydraulic system.
Accompanying drawing explanation
Fig. 1 is this utility model oil circuit connection diagram.
Number in the figure is schematically as follows:
01 oil pump; 02 return filter; 03 relief valve; 04 for oil strainer; 05 air intake filter; 06 check-valves; 07 Manual relief valve; 08 proportional pressure valve; 09 energy-storage pressure sensor; 10 parking brake electromagnetic valves; 11 safety arrestments regulate valve; 12 brake hard electromagnetic valves; 13 brake-pressure sensors; 14 pump nozzles; 15 fuel tanks; A accumulation of energy mouth; B pressure output.
Detailed description of the invention
Embodiment
As shown in Figure 1, tramcar hydraulic braking control device, it is made up of pressure feed part and pressure controlling section, pressure feed part includes: fuel tank, oil pump, check-valves, confession oil strainer, relief valve and Manual relief valve, oil in fuel tank is sequentially passed through filter and check-valves and carries to pressure controlling section by oil pump, the oil-in of relief valve connects the delivery outlet of oil pump, the oil-out of relief valve is connected with fuel tank, the oil-in of Manual relief valve connects with accumulation of energy mouth, and the oil-out of Manual relief valve connects fuel tank, pressure controlling section includes: the accumulation of energy mouth connected with accumulator, the pressure output connected with checking cylinder, proportional pressure valve, brake hard electromagnetic valve, parking brake electromagnetic valve, safety arrestment regulates valve, return filter, the output port of the oil-in of accumulation of energy mouth and proportional pressure valve and Bonding pressure supply portion, the oil-out of proportional pressure valve connects the oil-in of brake hard electromagnetic valve, the oil return opening of proportional pressure valve connects fuel tank by pipeline, the oil-out of brake hard electromagnetic valve connects described pressure output, the oil return opening of brake hard electromagnetic valve connects fuel tank through parking braking electromagnetic valve, the oil return opening of brake hard electromagnetic valve regulates valve through this safety arrestment and is connected with fuel tank. as it can be seen, in the present embodiment, pressure controlling section also includes the energy-storage pressure sensor connected with accumulation of energy mouth and the brake-pressure sensor connected with pressure output.
Separately below the effect of the critical piece in pressure feed part and pressure controlling section is briefly described.
Pressure feed:
1, fuel tank
Can passing through a special connecting device oil dropping apparatus oiling with suitable oiling unit, this device includes a filter and pump. This connecting device is also used for the oil extraction of fuel tank. A visual glass can be passed through and observe oil level situation, it has the minimum and maximum position instruction of oil level.
2, oil pump
Pump is positioned at the inside of fuel tank, is arranged on collecting tubule, and it is driven by direct current generator (connecting the clutch of a keying).From the oil that pump flows out, flow to collecting tubule, flow to clamp through filter and check-valves.
3, relief valve
Relief valve is arranged in collecting tubule, and protection hydraulic braking control device is not by the impact of high pressure. When reaching the pressure set, valve is opened, and allows oil flow back into fuel tank. Therefore not can exceed that maximum allowble pressure.
4, check-valves
Check-valves is also mounted in collecting tubule, and when motor cuts out, it can prevent oil from reversely flowing back to gear pump.
5, for oil strainer
This confession oil strainer is also mounted in collecting tubule, mainly before oil flows to hydraulic system and clamp from check-valves, filters the oil flowed out from pump. For the purpose safeguarded, filter can be accessible externally from hydraulic pressure unit.
Pressure controlling section:
1, proportional pressure valve
Proportional pressure valve is also mounted in collecting tubule. This proportional pressure valve processes the proportionate relationship between signal of telecommunication input (i.e. brake force value information) and hydraulic pressure output. The change of the input current of proportional pressure valve changes clamp and alleviates the rank of pressure. When using maximum current, maximum pressure will be inputted to clamp, so as to complete incidence graph. When not having electric current, pressure would fall to the stress level of fuel tank.
2, brake hard electromagnetic valve
During brake hard, this electromagnetic valve dead electricity, the oil in hydraulic braking clamp can pass through this valve and return fuel tank, regulates valve by safety arrestment, makes delivery outlet pressure limit fix on setting.
3, parking brake electromagnetic valve
During parking brake, this electromagnetic valve dead electricity, hydraulic clamp pressure oil pressure returns fuel tank by this electromagnetic valve.
4, safety arrestment regulates valve
During safety arrestment, it is possible to set the hydraulic pressure force value of safety arrestment by this valve.
5, pressure transducer
Hydraulic braking control system can be monitored by the oil pressure of the pressure transducer pressure to accumulator and control device output, can be detected when pressure anomaly.
6, return filter
This return filter is also mounted in collecting tubule, and protection hydraulic pressure unit is not contaminated from connection hydraulic circuit (such as pipe, flexible pipe etc.). When braking, oil returns from clamp, at oil before valve stream to fuel tank, first flows through return filter. Purpose filter in order to keep in repair can be accessible externally from hydraulic pressure unit.
The control method of the present embodiment tramcar hydraulic braking control device is as follows:
When performing release of brake or service braking or brake hard, brake hard electromagnetic valve obtains electric, and deceleration of electrons controls device and regulates the input current of proportional pressure valve, controls the output pressure of proportional pressure valve, makes checking cylinder reach goal pressure; During release of brake, oily passing ratio pressure-regulating valve and the urgent electromagnetic valve of accumulator output are carried to checking cylinder, improve braking in-cylinder pressure, implement release of brake; When service braking or brake hard, passing ratio pressure-regulating valve reduces braking in-cylinder pressure, from the oil of checking cylinder outflow through brake hard electromagnetic valve and proportional pressure valve, flows in mailbox from the oil return opening of proportional pressure valve;
During safety arrestment, brake hard electromagnetic valve dead electricity, brake-cylinder pressure is down to the pressure that relief valve (safety arrestment adjustment valve) sets, and the oil that checking cylinder flows out flows into fuel tank through brake hard electromagnetic valve and relief valve, implements safety arrestment;
During parking brake, brake hard electromagnetic valve and the equal dead electricity of parking brake electromagnetic valve, the oil that checking cylinder flows out is through brake hard electromagnetic valve and parking brake electromagnetic valve fuel tank, and brake-cylinder pressure is down to 0, applies parking brake power.
This utility model is not limited to the concrete technical scheme of above-described embodiment, and in addition to the implementation, this utility model can also have other embodiments. All employings are equal to replaces the technical scheme formed, and is the protection domain of this utility model requirement.
Claims (5)
1. a tramcar hydraulic braking control device, it is characterized in that, it is made up of pressure feed part and pressure controlling section, described pressure feed part includes: fuel tank, oil pump, check-valves and filter, and the oil in fuel tank is sequentially passed through filter and check-valves and carries to pressure controlling section by described oil pump, described pressure controlling section includes: the accumulation of energy mouth connected with accumulator, the pressure output connected with checking cylinder, proportional pressure valve, brake hard electromagnetic valve and parking brake electromagnetic valve, the oil-in of described accumulation of energy mouth and proportional pressure valve and the output port of Bonding pressure supply portion, the oil-out of proportional pressure valve connects the oil-in of brake hard electromagnetic valve, the oil return opening of proportional pressure valve connects fuel tank by pipeline, the oil-out of brake hard electromagnetic valve connects described pressure output, the oil return opening of brake hard electromagnetic valve connects fuel tank through parking braking electromagnetic valve.
2. tramcar hydraulic braking control device as claimed in claim 1, it is characterised in that: described pressure controlling section also includes: safety arrestment regulates valve, and the oil return opening of described brake hard electromagnetic valve regulates valve through this safety arrestment and is connected with fuel tank.
3. tramcar hydraulic braking control device as claimed in claim 1, it is characterised in that: described pressure controlling section also includes the energy-storage pressure sensor connected with accumulation of energy mouth and the brake-pressure sensor connected with pressure output.
4. tramcar hydraulic braking control device as claimed in claim 1, it is characterised in that: described pressure feed part also includes relief valve, and the oil-in of described relief valve connects the delivery outlet of oil pump, and the oil-out of relief valve is connected with fuel tank.
5. tramcar hydraulic braking control device as claimed in claim 1, it is characterised in that: described pressure controlling section also includes Manual relief valve, and the oil-in of described Manual relief valve connects with accumulation of energy mouth, and the oil-out of Manual relief valve connects fuel tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520972675.2U CN205292615U (en) | 2015-11-30 | 2015-11-30 | Hydraulic braking controlling means for tram |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520972675.2U CN205292615U (en) | 2015-11-30 | 2015-11-30 | Hydraulic braking controlling means for tram |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205292615U true CN205292615U (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520972675.2U Active CN205292615U (en) | 2015-11-30 | 2015-11-30 | Hydraulic braking controlling means for tram |
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| Country | Link |
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| CN (1) | CN205292615U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105383471A (en) * | 2015-11-30 | 2016-03-09 | 南京浦镇海泰制动设备有限公司 | Hydraulic braking control device for tramcars |
| CN106740970A (en) * | 2016-12-14 | 2017-05-31 | 中车株洲电力机车有限公司 | Track train brake fluid system and its auxiliary relief device |
-
2015
- 2015-11-30 CN CN201520972675.2U patent/CN205292615U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105383471A (en) * | 2015-11-30 | 2016-03-09 | 南京浦镇海泰制动设备有限公司 | Hydraulic braking control device for tramcars |
| CN106740970A (en) * | 2016-12-14 | 2017-05-31 | 中车株洲电力机车有限公司 | Track train brake fluid system and its auxiliary relief device |
| CN106740970B (en) * | 2016-12-14 | 2019-02-26 | 中车株洲电力机车有限公司 | Track train brake fluid system and its auxiliary relief device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 211800 Nanjing Road, Pukou District, Jiangsu, No. 10 Patentee after: Nanjing Zhongche town Haitai Brake Equipment Co Ltd Address before: 211800 Nanjing Road, Pukou District, Jiangsu, No. 10 Patentee before: Nanjing Puzhen Haitai Brake Equipment Co., Ltd. |