CN102616228A - Pressure type electro-hydraulic servo valve system for brake - Google Patents
Pressure type electro-hydraulic servo valve system for brake Download PDFInfo
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- CN102616228A CN102616228A CN2012101038261A CN201210103826A CN102616228A CN 102616228 A CN102616228 A CN 102616228A CN 2012101038261 A CN2012101038261 A CN 2012101038261A CN 201210103826 A CN201210103826 A CN 201210103826A CN 102616228 A CN102616228 A CN 102616228A
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- pressure
- servo equipment
- brake
- pressure servo
- guiding valve
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- 210000002445 nipple Anatomy 0.000 claims description 13
- 238000005507 spraying Methods 0.000 claims description 13
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 239000000446 fuel Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 108010022579 ATP dependent 26S protease Proteins 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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Abstract
The embodiment of the invention discloses a pressure type electro-hydraulic servo valve system for brake. The system comprises first pressure servo equipment and second pressure servo equipment sharing an oil inlet and an oil outlet, wherein each piece of pressure servo equipment is provided with a torque motor and a slide valve; a baffle of the torque motor of each piece of pressure servo equipment is located between an upper oil nozzle and a lower oil nozzle; the pressure difference between the baffles of the upper and lower oil nozzles acts on the outer cylindrical surface of a side convex shoulder of the slide valve; and the air inlet pressure acts on the annular surface of a lower convex shoulder of the slide valve. To perfect the scheme, the system also comprises a zero spring which is connected to the annular surface of an upper convex shoulder of the slide valve. Compared with the existing pressure type electro-hydraulic servo valve, the pressure type electro-hydraulic servo valve system disclosed by the embodiment of the invention has a simpler pipeline; and the zero spring assisting in zero adjustment realizes a technical effect of conveniently performing zero adjustment of the slide valve.
Description
Technical field
The present invention relates to fluid control braking technology field, more particularly, relates to a kind of pressure-type electro-hydraulic pressure servovalve system that is used to brake.
Background technology
Electronic anti-breaking brake technology is the technology that is used for the vehicle of running at high speed are carried out braking at a high speed and shortening distance of landing run; This technology is according to the tire momentary velocity of the vehicle and the difference of reference velocity; And the sliding planar condition that runs away; The automatic compensation brake pressure, prevent vehicle snap catch cause lateral deviation etc. not to.
The existing pressure-type electro-hydraulic servo valve system that is used to brake is that left and right sides pressure-type electrohydraulic servo valve is respectively established one, and about two valves the oil channel structures of oil inlet and return opening is set separately, exist connecting line complicated technology problem; And said pressure-type electrohydraulic servo valve only relies on the spacing regulation and control of pressure to guarantee spool position, and there is the inconvenient shortcoming of guiding valve zero control in this kind control methods.
Summary of the invention
In view of this, the present invention provides a kind of pressure-type electro-hydraulic pressure servovalve system that is used to brake, and is succinct to realize pipeline, the technique effect of being convenient to return to zero.
A kind of pressure-type electro-hydraulic pressure servovalve system that is used to brake comprises: the first pressure servo equipment of shared oil inlet and oil outlet and the second pressure servo equipment, and each pressure servo equipment is equipped with torque motor and guiding valve, wherein:
Between the spraying nipple, the said difference of pressure of spraying nipple baffle plate up and down acted on the side convex shoulder outer cylinder of said guiding valve about the baffle plate of the torque motor of each pressure servo equipment was located at;
Input pressure acts on the following convex shoulder anchor ring of said guiding valve.
In order to improve such scheme, this system also comprises: the zeroing spring, the zeroing spring is connected on the last convex shoulder anchor ring of said guiding valve.
Be arranged at the coarse filter of the said first pressure servo equipment and the second pressure servo equipment room oil inlet.
Be arranged at the thin oil filter between inflow pipeline and last spraying nipple.
Can find out from above-mentioned technical scheme; Comprise two pressure servo equipment that are used to brake in the pressure-type electro-hydraulic servo valve system in the embodiment of the invention; Shared oil inlet and oil return mouth in two equipment; Compare on the pipeline comparatively succinctly with existing to the pressure-type electrohydraulic servo valve, the guiding valve in the said pressure servo equipment is provided with the zeroing spring that is used for the auxiliary adjustment zero-bit, has realized making things convenient for the technique effect of guiding valve zeroing.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the disclosed a kind of pressure-type electro-hydraulic pressure servovalve system architecture scheme drawing that is used to brake of the embodiment of the invention;
Fig. 2 is the disclosed a kind of pressure-type electro-hydraulic pressure servovalve system sliding valve structure scheme drawing that is used to brake of the embodiment of the invention.
The specific embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
The embodiment of the invention discloses a kind of pressure-type electro-hydraulic pressure servovalve system that is used to brake, succinct to realize pipeline, the technique effect of being convenient to return to zero.
Fig. 1 shows a kind of pressure-type electro-hydraulic pressure servovalve system that is used to brake, and describes in conjunction with the sliding valve structure among Fig. 2: comprising:
The first pressure servo equipment 3 and the second pressure servo equipment 4 of shared oil inlet 1 and oil outlet 2 are that example describes with the first pressure servo equipment on right side, and the 26S Proteasome Structure and Function of the said second pressure servo equipment is similar, repeats no more and detailed sign:
The said first pressure servo equipment is equipped with torque motor 5, guiding valve 6 and zeroing spring 7, wherein:
Between the spraying nipple, the said difference of pressure of spraying nipple baffle plate 8 up and down acted on the side convex shoulder outer cylinder 9 of said guiding valve 6 about the baffle plate of said torque motor 5 was located at;
Zeroing spring 7 acts on the last convex shoulder anchor ring 10 of said guiding valve 6 with load pressure;
Input pressure acts on the following convex shoulder anchor ring 11 of said guiding valve 6.
Also show among Fig. 1: the coarse filter 12 that is arranged at the said first pressure servo equipment 3 and 4 oil inlets of the second pressure servo equipment.
Be arranged at the thin oil filter 15 of 14 of inflow pipeline 13 and last spraying nipples.
This system works principle is that example describes with the first pressure servo equipment on right side:
High pressure oil gets into after the thick oil filter 12 of oil inlet 1 filters, and is divided into two-way, gets into left and right sides servovalve respectively;
A high pressure oil part that gets into the first pressure servo equipment 3 gets into the first segment discharge orifice 16 and second restriction 17 along two oil circuits respectively after thin oil filter 15 filters;
Be divided into two-way through after the step-down of cutoff port, the one tunnel flows to the ring surface at guiding valve 6 two ends, and another road gets into spraying nipple 14, and after slit 18 throttlings of spraying nipple 14 and torque motor 5, the solenoid valve 19 of flowing through flows back to fuel tank along oil return line 20;
Get into another part operating fluid of guiding valve 6, get into the fuel supply chamber 25 of guiding valve 6, and the aperture on spool 21 is communicated with guiding valve epicoele 22.
When servovalve 3 did not have electric current, torque motor 5 baffle plates were in meta, and last spraying nipple equates that with following spraying nipple pressure guiding valve 6 is in the next under the effect of zeroing spring 7;
The oil back chamber 23 of guiding valve 6 and brake chamber 24 UNICOMs, brake chamber 24 pressure (control presssure of valve) equal oil back chamber 23 pressure;
In order to form contrast, importing an electric current with the second pressure servo equipment is example, as schemes visible: said torque motor 5 baffle plates deflect down; Two nozzle chambers produce difference of pressure, and difference of pressure acts on the side convex shoulder outer cylinder 9 of guiding valve 6, and guiding valve is moved up; Reduce the throttling action in 24 in fuel supply chamber 25 and brake chamber gradually, brake chamber 24 pressure are risen, guiding valve epicoele 22 pressure are risen; Form inverse feedback, hinder valve core movement, when the effect balance on the guiding valve; Guiding valve is in a position, a corresponding brake cavity pressure.Therefore, the electric current of controlling said servovalve 6 is directly proportional with brake chamber 24 pressure.
When to servovalve input rated current; The nozzle pressure official post guiding valve 6 that produces continues to move up, and blocking-up brake chamber 24 and oil back chamber 23, links up fuel supply chamber 25 and brake chamber 24; Brake chamber 24 pressure near charge oil pressure, thereby accomplished the pressure control when braking.
In addition, being installed in the peripheral housing of the said first pressure servo equipment and the second pressure servo equipment does not respectively identify in the drawings.
In sum:
Comprise two pressure servo equipment that are used to brake in the pressure-type electro-hydraulic servo valve system in the embodiment of the invention; Shared oil inlet and oil return mouth in two equipment; Compare on the pipeline comparatively succinct with existing to the pressure-type electrohydraulic servo valve; Guiding valve in the said pressure servo equipment is provided with the zeroing spring that is used for the auxiliary adjustment zero-bit, has realized making things convenient for the technique effect of guiding valve zeroing.
Each embodiment adopts the mode of going forward one by one to describe in this specification sheets, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation of spirit that does not break away from the embodiment of the invention or scope in other embodiments among this paper.Therefore, the embodiment of the invention will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (5)
1. a pressure-type electro-hydraulic pressure servovalve system that is used to brake is characterized in that, comprising: the first pressure servo equipment of shared oil inlet and oil outlet and the second pressure servo equipment, and each pressure servo equipment is equipped with torque motor and guiding valve, wherein:
Between the spraying nipple, the said difference of pressure of spraying nipple baffle plate up and down acted on the side convex shoulder outer cylinder of said guiding valve about the baffle plate of the torque motor of each pressure servo equipment was located at;
Input pressure acts on the following convex shoulder anchor ring of said guiding valve.
2. the system of claim 1 is characterized in that, also comprises: the zeroing spring, the zeroing spring is connected on the last convex shoulder anchor ring of said guiding valve.
3. the system of claim 1 is characterized in that, also comprises: the coarse filter that is arranged at the said first pressure servo equipment and the second pressure servo equipment room oil inlet.
4. the system of claim 1 is characterized in that, also comprises: be arranged at the thin oil filter between inflow pipeline and last spraying nipple.
5. the system of claim 1 is characterized in that, also comprises: be installed in the peripheral housing of the said first pressure servo equipment and the second pressure servo equipment respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210103826.1A CN102616228B (en) | 2012-04-10 | 2012-04-10 | Pressure type electro-hydraulic servo valve system for brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210103826.1A CN102616228B (en) | 2012-04-10 | 2012-04-10 | Pressure type electro-hydraulic servo valve system for brake |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102616228A true CN102616228A (en) | 2012-08-01 |
| CN102616228B CN102616228B (en) | 2014-08-20 |
Family
ID=46556550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210103826.1A Expired - Fee Related CN102616228B (en) | 2012-04-10 | 2012-04-10 | Pressure type electro-hydraulic servo valve system for brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102616228B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103144624A (en) * | 2013-03-11 | 2013-06-12 | 西安航空制动科技有限公司 | Brake control valve of airplane |
| CN103144766A (en) * | 2013-03-11 | 2013-06-12 | 西安航空制动科技有限公司 | Electric hydraulic pressure servo valve |
| CN109250075A (en) * | 2018-09-25 | 2019-01-22 | 陕西飞机工业（集团）有限公司 | A kind of aircraft adaptive braking servo valve module |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5240041A (en) * | 1989-12-28 | 1993-08-31 | Moog Inc. | Synthesized flow-control servovalve |
| CN2775363Y (en) * | 2005-02-02 | 2006-04-26 | 陈镇汉 | Dynamic pressure feedback electrohydraulic servo valve |
| CN202001410U (en) * | 2011-02-28 | 2011-10-05 | 西安陕鼓动力股份有限公司 | Resetting mechanism of hydraulic servo valve |
-
2012
- 2012-04-10 CN CN201210103826.1A patent/CN102616228B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5240041A (en) * | 1989-12-28 | 1993-08-31 | Moog Inc. | Synthesized flow-control servovalve |
| CN2775363Y (en) * | 2005-02-02 | 2006-04-26 | 陈镇汉 | Dynamic pressure feedback electrohydraulic servo valve |
| CN202001410U (en) * | 2011-02-28 | 2011-10-05 | 西安陕鼓动力股份有限公司 | Resetting mechanism of hydraulic servo valve |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103144624A (en) * | 2013-03-11 | 2013-06-12 | 西安航空制动科技有限公司 | Brake control valve of airplane |
| CN103144766A (en) * | 2013-03-11 | 2013-06-12 | 西安航空制动科技有限公司 | Electric hydraulic pressure servo valve |
| CN103144766B (en) * | 2013-03-11 | 2015-04-08 | 西安航空制动科技有限公司 | Electric hydraulic pressure servo valve |
| CN103144624B (en) * | 2013-03-11 | 2015-05-13 | 西安航空制动科技有限公司 | Brake control valve of airplane |
| CN109250075A (en) * | 2018-09-25 | 2019-01-22 | 陕西飞机工业（集团）有限公司 | A kind of aircraft adaptive braking servo valve module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102616228B (en) | 2014-08-20 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 611130 Changan Road, Liucheng, Wenjiang District, Chengdu, Sichuan Province, No. 198 Patentee after: SICHUAN AEROSPACE FENGHUO SERVO CONTROL TECHNOLOGY Co.,Ltd. Address before: 611100 Liucheng Road, Wenjiang, Sichuan, No. Changan Road, No. 198 Patentee before: SICHUAN FENGHUO MACHINERY FACTORY OF CHINA AEROSPACE SCIENCE AND TECHNOLOGY Corp. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140820 |