CN102529928A - Aerodynamic braking hydraulic system - Google Patents
Aerodynamic braking hydraulic system Download PDFInfo
- Publication number
- CN102529928A CN102529928A CN2011104494670A CN201110449467A CN102529928A CN 102529928 A CN102529928 A CN 102529928A CN 2011104494670 A CN2011104494670 A CN 2011104494670A CN 201110449467 A CN201110449467 A CN 201110449467A CN 102529928 A CN102529928 A CN 102529928A
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- hydraulic
- pressure system
- efficiency pressure
- aerodynamic braking
- actuating cylinder
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Abstract
The invention relates to a hydraulic system, discloses an aerodynamic braking hydraulic system, and comprises a hydraulic oil tank, a hydraulic pump and two hydraulic cylinders. The hydraulic pump sucks hydraulic oil out of the hydraulic oil tank and sends the hydraulic oil to the hydraulic cylinders to enable piston rods of the hydraulic cylinders to produce stroke. A change valve and a distribution valve are sequentially arranged between the hydraulic pump and the hydraulic cylinders, hydraulic oil feeding and hydraulic oil discharging of the hydraulic cylinders are controlled by the change valve and the like, and the distribution valve distributes the hydraulic oil to the two hydraulic cylinders to enable the stroke of the hydraulic cylinders to be synchronous. By means of the aerodynamic braking hydraulic system, opening and closing of a wind wing plate controlled by the hydraulic system are quick, safe and stable.
Description
Technical field
The present invention relates to a cover hydraulic efficiency pressure system, in particular for the hydraulic efficiency pressure system of control high-speed train braking wind wing plate.
Background technology
Existing aerodynamic braking system uses air pressure to drive usually, and the air pressure on the car can move by the drive air power-absorption unit, but for the aerodynamic brake that relates in this patent; Its wind wing plate must be opened against the wind, and its wind area is bigger, under high-speed working condition; The resistance that acts on the wind wing plate is bigger, and the wind regime on the existing train can't provide enough air pressure to open the wind wing plate, even open; In train speed's change procedure, also can't keep long-acting pressure.
Summary of the invention
To the objective of the invention is in order solving the problems of the technologies described above, a kind of aerodynamic braking hydraulic efficiency pressure system to be provided, high-speed train braking wind wing plate is controlled safely and effectively in the hope of realizing.
The technical scheme that the present invention takes is:
A kind of aerodynamic braking hydraulic efficiency pressure system; Comprise fuel tank, motor-drive pump, hydraulic actuating cylinder; Said motor-drive pump with hydraulic oil from said fuel tank sucking-off and deliver to said hydraulic actuating cylinder and make hydraulic cylinder piston rod produce stroke; It is characterized in that said hydraulic actuating cylinder is two, between said Hydraulic Pump and said hydraulic actuating cylinder, set gradually change-over valve, flow divider valve; Said change-over valve is controlled the oil-filled and oil extraction of said hydraulic actuating cylinder, and said flow divider valve branches to said two hydraulic actuating cylinders with said hydraulic oil makes the stroke of two hydraulic actuating cylinders synchronous.
Further, between said change-over valve and said hydraulic actuating cylinder, hydraulic lock is set.
Further, said hydraulic oil is No. 15 aeronautic hydraulic oils.
Further, said fuel tank is a leakproof fuel cell, in said fuel tank, liquid level alarm is set.
Further, said aerodynamic braking hydraulic efficiency pressure system also comprises damper unit, the vibration that said damper unit produces when being used to alleviate hydraulic work system.
Further, said aerodynamic braking hydraulic efficiency pressure system also comprises detecting unit and alarm unit, and the fault that said detecting unit and alarm unit produce said hydraulic efficiency pressure system detects and reports to the police.
Further, said aerodynamic braking hydraulic efficiency pressure system also comprises manual pump, and when said motor-drive pump can't normal operation, said manual pump replaced providing hydraulic coupling.
The invention has the beneficial effects as follows:
1, the hydraulic actuating cylinder range time of opening is no more than 3 seconds, fast effectively;
2, the selection of hydraulic oil has improved the overall performance of hydraulic efficiency pressure system;
3, adopt leakproof fuel cell and vibration damping facility, and fault is handled, safety performance is improved through detection and alarm unit;
4, the setting of manual pump, it when system's dead electricity or under the setting faulty condition, makes the wind wing can at least accomplish once closed control and pressurize through the emergency hydraulic system driving as emergency hydraulic system.
Description of drawings
Accompanying drawing 1 is the scheme drawing of hydraulic efficiency pressure system of the present invention;
Label in the accompanying drawing is respectively:
1. fuel tank; 2. liquid level alarm; 3. filter
4. Hydraulic Pump; 5. motor; 6. filter;
7. pressure-compensated valve; 8. safety valve; 9. compression indicator;
10. pressure switch; 11. change-over valve; 12. flow divider valve;
13. hydraulic lock; 14. shuttle valve; 15. first hydraulic actuating cylinder;
16. second hydraulic actuating cylinder; 17. filter; 100. chargine line;
200. fuel-displaced pipeline.
The specific embodiment
Elaborate below in conjunction with the specific embodiment of accompanying drawing to aerodynamic braking hydraulic efficiency pressure system of the present invention.
Referring to accompanying drawing 1, the aerodynamic braking hydraulic efficiency pressure system is delivered to hydraulic actuating cylinder 15,16 through chargine line 100 through change-over valve 11 by Hydraulic Pump 4 sucking-off hydraulic oil from fuel tank 1; Realize the piston rod movement of hydraulic actuating cylinder 15,16; The aerodynamic braking wind wing is opened, in the time will making the aerodynamic braking wind wing closed, regulated change-over valve 11 hydraulic oil is flowed back in the fuel tank 1 through fuel-displaced pipeline 200; The piston reset of hydraulic actuating cylinder 15,16 makes the aerodynamic braking wind wing closed.
Continuation is referring to accompanying drawing 1; With the workflow of aerodynamic braking hydraulic efficiency pressure system its structure and principle are described at present; Hydraulic Pump 4 is through chargine line 100 sucking-off hydraulic oil from fuel tank 1; Fuel tank 1 adopts the sealed type fuel tank, and in the braking wind wing working process, the hydraulic oil in the fuel tank 1 can not receive the steep variation of train speed and cause oil droplet to splash.On fuel tank 1, be provided with liquid level alarm 2, report to the police when the liquid level of 2 pairs of fuel tanks 1 of liquid level alarm is higher than higher limit or is lower than lower limit.On the front and back oil circuit of Hydraulic Pump 4 on the chargine line 100, be respectively equipped with filter 3 and filter 6, filter 3 adopts pipe filter with filter 6, and this kind filter generally is used for aviation system, has efficiently characteristics such as compactness.Hydraulic Pump 4 provides power by motor 5; Hydraulic oil after filtering is delivered to change-over valve 11 through chargine line 100, on the pipeline of carrying, safety valve 8, pressure-compensated valve 7, compression indicator 9 and pressure switch 10 etc. is set respectively; Safety valve 8 is installed between chargine line 100 and the fuel-displaced pipeline 200; When the charge oil pressure of chargine line 100 surpassed the setting pressure of safety valve 8, safety valve 8 was opened, and hydraulic oil is back to fuel tank 1 from fuel-displaced pipeline 200.Pressure-compensated valve 7 is used for the drain charge pressure of control air dynamic brake hydraulic efficiency pressure system, makes hydraulic efficiency pressure system under the situation of smaller power output, and can not work long hours under the situation of taking into account system radiator.Compression indicator 9 shows the pressure of chargine line 100, and pressure switch 10 is used to be provided with the operation pressure upper lower limit value of chargine line 100, and the pressure unit that this upper lower limit value is used for controlled hydraulic system opens and closes.Change-over valve 11 is a two-position four-way solenoid valve, can be chosen in the mode of operation of the hydraulic actuating cylinder that inserts at chargine line 100 rears as required, and then the unlatching and the closure of control brake wind wing plate.Hydraulic oil is through behind the change-over valve 11; Getting into flow divider valve 12 shunts; Get into respectively in the hydraulic cavities of first hydraulic actuating cylinder 15 and second hydraulic actuating cylinder 16, flow divider valve 12 makes the piston rod stroke of first hydraulic actuating cylinder 15 and second hydraulic actuating cylinder 16 synchronous, and this has just controlled stablizing when the wind wing plate is opened.On the chargine line 100 before getting into first hydraulic actuating cylinder 15 and second hydraulic actuating cylinder 16 hydraulic lock 13 is set; Hydraulic lock 13 can not reflux the hydraulic oil that pumps into first hydraulic actuating cylinder 15 and second hydraulic actuating cylinder 16 from chargine line 100, keep the piston position of hydraulic actuating cylinder 15,16.On the connection pipe of the hydraulic cavities of first hydraulic actuating cylinder 15 and second hydraulic actuating cylinder 16, shuttle valve 14 is set, shuttle valve 14 is used to detect the pressure of hydraulic cavities, again the delivery pressure through control system modulated pressure pump 4.When wanting closed wind wing plate, system is carried out release, hydraulic oil flows into fuel tanks 1 through fuel-displaced pipeline 200, on fuel-displaced pipeline 200, filter 17 is set, and filter 17 also adopts pipe filter to filter.Under the effect of hydraulic oil, the stroke of the piston rod through changing first hydraulic actuating cylinder 15 and second hydraulic actuating cylinder 16 and then the opening angle of control brake wind wing plate, the about 200mm of effective travel of hydraulic actuating cylinder 15,16.Through the control of hydraulic efficiency pressure system, and cooperate hydraulic lock, the wind wing plate is stopped in the arbitrary distance of run position of piston rod and keep this state the braking wind wing plate.
In order to make system reach superior performance, hydraulic oil adopts No. 15 aeronautic hydraulic oils, and this hydraulic oil has good viscosity-temperature characteristic, suitable compressibi1ity, good lubricating property, heat stability, inoxidizability, flame resistance, good characteristics such as flowing power.The selection of hydraulic oil and the optimization of system make system be issued to the hydraulic actuating cylinder range opening time from braking instruction and are no more than 3 seconds, and in addition, the noise control of system is in 60 decibels.The vibration that produces when alleviating hydraulic work system is provided with damper unit at the hydraulic pressure unit, and damper unit can be used scheme of the prior art.In system, also be provided with detecting unit and alarm unit, when situations such as system detects that liquid level is low excessively, overvoltage, motor overheating, leakage, the wind wing open and close fault, warning gives the alarm, and has improved system safety.In addition, hydraulic efficiency pressure system also is provided with manual pump as emergent hydraulic pressure unit, when system's dead electricity or under the setting faulty condition, makes the wind wing can accomplish once also pressurize of closed control at least through emergent hydraulic pressure unit driving.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (7)
1. aerodynamic braking hydraulic efficiency pressure system; Comprise fuel tank, motor-drive pump, hydraulic actuating cylinder; Said motor-drive pump with hydraulic oil from said fuel tank sucking-off and deliver to said hydraulic actuating cylinder and make hydraulic cylinder piston rod produce stroke; It is characterized in that: said hydraulic actuating cylinder is two; Between said Hydraulic Pump and said hydraulic actuating cylinder, set gradually change-over valve, flow divider valve, said change-over valve is controlled the oil-filled and oil extraction of said hydraulic actuating cylinder, and said flow divider valve branches to said two hydraulic actuating cylinders with said hydraulic oil makes the stroke of two hydraulic actuating cylinders synchronous.
2. aerodynamic braking hydraulic efficiency pressure system according to claim 1 is characterized in that: between said change-over valve and said hydraulic actuating cylinder, hydraulic lock is set.
3. aerodynamic braking hydraulic efficiency pressure system according to claim 1 is characterized in that: said hydraulic oil is No. 15 aeronautic hydraulic oils.
4. aerodynamic braking hydraulic efficiency pressure system according to claim 1 is characterized in that: said fuel tank is a leakproof fuel cell, in said fuel tank, liquid level alarm is set.
5. according to each described aerodynamic braking hydraulic efficiency pressure system in the claim 1 to 4, it is characterized in that: said aerodynamic braking hydraulic efficiency pressure system also comprises damper unit, the vibration that said damper unit produces when being used to alleviate hydraulic work system.
6. according to each described aerodynamic braking hydraulic efficiency pressure system in the claim 1 to 4; It is characterized in that: said aerodynamic braking hydraulic efficiency pressure system also comprises detecting unit and alarm unit, and the fault that said detecting unit and alarm unit produce said hydraulic efficiency pressure system detects and reports to the police.
7. according to each described aerodynamic braking hydraulic efficiency pressure system in the claim 1 to 4, it is characterized in that: said aerodynamic braking hydraulic efficiency pressure system also comprises manual pump, and when said motor-drive pump can't normal operation, said manual pump replaced providing hydraulic coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104494670A CN102529928A (en) | 2011-12-29 | 2011-12-29 | Aerodynamic braking hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104494670A CN102529928A (en) | 2011-12-29 | 2011-12-29 | Aerodynamic braking hydraulic system |
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| Publication Number | Publication Date |
|---|---|
| CN102529928A true CN102529928A (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011104494670A Pending CN102529928A (en) | 2011-12-29 | 2011-12-29 | Aerodynamic braking hydraulic system |
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| CN (1) | CN102529928A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104176021A (en) * | 2014-08-15 | 2014-12-03 | 武汉理工大学 | Aerodynamics additional device for improving automobile braking performance |
| CN113786967A (en) * | 2021-09-03 | 2021-12-14 | 瑞意科自动化科技(苏州)有限公司 | Flexible support system and working method thereof |
| CN115959172A (en) * | 2021-10-12 | 2023-04-14 | Ip传输控股公司 | Vehicle controller and system including the same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1404450A1 (en) * | 1986-04-15 | 1988-06-23 | Всесоюзный Научно-Исследовательский Институт Горной Механики Им.М.М.Федорова | Device for controlling brake of mine hoist |
| CN2852100Y (en) * | 2005-12-23 | 2006-12-27 | 中国矿业大学 | Hydraulic system of high-speed wire rope and gasket friction experiment machine |
| CN201020372Y (en) * | 2007-03-07 | 2008-02-13 | 上海建设路桥机械设备有限公司 | Hydraulic passing-iron protective system for heavy hydraulic jaw crusher |
| CN201276122Y (en) * | 2008-09-03 | 2009-07-22 | 青岛四方车辆研究所有限公司 | Hydraulic system of multiple units tight-lock type hook dismounting equipment |
| CN202068806U (en) * | 2011-04-15 | 2011-12-14 | 新疆农垦科学院 | Hydraulic system used for self-propelled corn castration machine |
-
2011
- 2011-12-29 CN CN2011104494670A patent/CN102529928A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1404450A1 (en) * | 1986-04-15 | 1988-06-23 | Всесоюзный Научно-Исследовательский Институт Горной Механики Им.М.М.Федорова | Device for controlling brake of mine hoist |
| CN2852100Y (en) * | 2005-12-23 | 2006-12-27 | 中国矿业大学 | Hydraulic system of high-speed wire rope and gasket friction experiment machine |
| CN201020372Y (en) * | 2007-03-07 | 2008-02-13 | 上海建设路桥机械设备有限公司 | Hydraulic passing-iron protective system for heavy hydraulic jaw crusher |
| CN201276122Y (en) * | 2008-09-03 | 2009-07-22 | 青岛四方车辆研究所有限公司 | Hydraulic system of multiple units tight-lock type hook dismounting equipment |
| CN202068806U (en) * | 2011-04-15 | 2011-12-14 | 新疆农垦科学院 | Hydraulic system used for self-propelled corn castration machine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104176021A (en) * | 2014-08-15 | 2014-12-03 | 武汉理工大学 | Aerodynamics additional device for improving automobile braking performance |
| CN113786967A (en) * | 2021-09-03 | 2021-12-14 | 瑞意科自动化科技(苏州)有限公司 | Flexible support system and working method thereof |
| CN115959172A (en) * | 2021-10-12 | 2023-04-14 | Ip传输控股公司 | Vehicle controller and system including the same |
| CN115959172B (en) * | 2021-10-12 | 2023-09-15 | Ip传输控股公司 | Vehicle controller and system including the same |
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Application publication date: 20120704 |