CN103836176B - Quick oil-filled hydraulic pressure shifting system - Google Patents
Quick oil-filled hydraulic pressure shifting system Download PDFInfo
- Publication number
- CN103836176B CN103836176B CN201410084835.XA CN201410084835A CN103836176B CN 103836176 B CN103836176 B CN 103836176B CN 201410084835 A CN201410084835 A CN 201410084835A CN 103836176 B CN103836176 B CN 103836176B
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- CN
- China
- Prior art keywords
- oil
- filled
- quick
- way solenoid
- solenoid valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/38—Control of exclusively fluid gearing
- F16H61/40—Control of exclusively fluid gearing hydrostatic
- F16H61/4043—Control of a bypass valve
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Transmission Device (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
A kind of quick oil-filled hydraulic pressure shifting system, mainly includes quick oil-filled oil circuit and buffering boosting oil circuit. Described quick oil-filled oil circuit is made up of two-position two-way solenoid valve, check valve. The oil-in of described buffering boosting oil circuit connects with working connection, and oil-out connects with shift clutch oil cylinder. Described two-position two-way solenoid valve oil-in connects with working connection, and oil-out connects with the oil inlet end of check valve, and the oil outlet end of check valve connects with shift clutch oil cylinder. Working connection is divided into quick oil-filled oil circuit and buffering boosting oil circuit by the present invention, shifts gears the initial stage, first passes through quick oil-filled oil circuit gearshift clutch oil cylinder is oil-filled, make hydraulic oil be filled with shift clutch oil cylinder at faster speed, effectively shorten shift time.
Description
Technical field
The present invention relates to a kind of hydraulic gear-shifting system, particularly a kind of quick oil-filled hydraulic pressure shifting system that can effectively shorten large-scale engineering machinery shift time.
Background technology
Along with engineering machinery is in the development of China and maturation, people require more and more higher for shift quality, and the application in dynamic power shift gear box engineering machinery at home is also more and more universal. The key property of dynamic power shift gear box is shifted gears stationarity and rapidity exactly, controls shift clutch mainly by hydraulic gear-shifting trimmer valve and ensures.
Shift clutch cohesive process needs experienced three stages: quickly oil-filled, buffering boosting and step boosting. Wherein, the quick oil-filled stage needs to overcome the precompression of shift clutch cut spring, eliminates the gap of friction plate, and this stage directly affects shift time.
Although hydraulic gear-shifting trimmer valve on the market is capable of buffering boosting at present, but the aperture of the restriction within hydraulic gear-shifting trimmer valve is little, and the valve port opening of adjusting pressuring valve core constantly reduces in the course of the work, fluid is caused can not to be quickly filled with shift clutch oil cylinder, ultimately resulting in shift clutch Oil feeding process to slow down, shift time increases.
Summary of the invention
In order to overcome the deficiency of existing hydraulic gear-shifting trimmer valve, it is desirable to provide a kind of novel quick oil-filled hydraulic pressure shifting system that can effectively shorten shift time.
The technical solution adopted for the present invention to solve the technical problems is: a kind of quick oil-filled hydraulic pressure shifting system, mainly includes quick oil-filled oil circuit and buffering boosting oil circuit.
Described buffering boosting oil circuit can be made up of existing hydraulic gear-shifting trimmer valve.
Described quick oil-filled oil circuit is made up of two-position two-way solenoid valve, check valve.
The oil-in of described buffering boosting oil circuit connects with working connection, and oil-out connects with shift clutch oil cylinder.
Described two-position two-way solenoid valve oil-in connects with working connection, and oil-out connects with the oil inlet end of check valve, and the oil outlet end of check valve connects with shift clutch oil cylinder.
The nominal flow rate of described two-position two-way solenoid valve and check valve allows the maximum stream flow passed through more than buffering boosting oil circuit.
Described two-position two-way solenoid valve is in the normal state position before gearshift, and valve port is closed.
Described two-position two-way solenoid valve is by ECU control, described ECU often receives a gear shifting signal, send the driving electric current of a specific duration to two-position two-way solenoid valve, the duration of this driving electric current is full of the time needed for shift clutch oil cylinder equal to hydraulic oil.
During gearshift, after ECU receives gear shifting signal, the driving electric current of a specific duration is sent to two-position two-way solenoid valve, two-position two-way solenoid valve is made to be in for current potential, valve port is opened, the hydraulic oil of working connection sequentially passes through two-position two-way solenoid valve, check valve, carries out quickly oil-filled to gearshift clutch oil cylinder. Meanwhile, section hydraulic oil is had to enter buffering boosting oil circuit, so that buffering boosting oil circuit sets up the initial pressure value that buffering boosting is required.
When hydraulic oil is full of shift clutch oil cylinder, the driving current vanishes that ECU sends to two-position two-way solenoid valve, two-position two-way solenoid valve is converted to its normal orientation under the action of the spring, valve port is closed, quick oil-filled oil circuit is cut off, the hydraulic oil of working connection arrives shift clutch oil cylinder after buffering boosting oil circuit, and is carried out buffering boosting by buffering boosting oil circuit, reduces shift shock.
The invention has the beneficial effects as follows, working connection is divided into quick oil-filled oil circuit and buffering boosting oil circuit, shifts gears the initial stage, first pass through quick oil-filled oil circuit gearshift clutch oil cylinder is oil-filled, make hydraulic oil be filled with shift clutch oil cylinder at faster speed, effectively shorten shift time.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the hydraulic schematic diagram of the present invention.
In figure, 1. buffering boosting oil circuit, 2. two-position two-way solenoid valve, 3. check valve, 4. shift clutch oil cylinder.
Detailed description of the invention
A kind of quick oil-filled hydraulic pressure shifting system, mainly includes quick oil-filled oil circuit and buffering boosting oil circuit (1).
Described buffering boosting oil circuit (1) can be made up of existing hydraulic gear-shifting trimmer valve.
Described quick oil-filled oil circuit is made up of two-position two-way solenoid valve (2), check valve (3).
The oil-in of described buffering boosting oil circuit (1) connects with working connection, and oil-out connects with shift clutch oil cylinder (4).
Described two-position two-way solenoid valve (2) oil-in connects with working connection, and oil-out connects with the oil inlet end of check valve (3), and the oil outlet end of check valve (3) connects with shift clutch oil cylinder (4).
The nominal flow rate of described two-position two-way solenoid valve (2) and check valve (3) allows the maximum stream flow passed through more than buffering boosting oil circuit (1).
Described two-position two-way solenoid valve (2) is in the normal state position before gearshift, and valve port is closed.
Described two-position two-way solenoid valve (2) is by ECU control, described ECU often receives a gear shifting signal, send the driving electric current of a specific duration to two-position two-way solenoid valve (2), the duration of this driving electric current is full of the time needed for shift clutch oil cylinder (4) equal to hydraulic oil.
During gearshift, after ECU receives gear shifting signal, the driving electric current of a specific duration is sent to two-position two-way solenoid valve (2), two-position two-way solenoid valve (2) is made to be in for current potential, valve port is opened, the hydraulic oil of working connection sequentially passes through two-position two-way solenoid valve (2), check valve (3), carries out quickly oil-filled to gearshift clutch oil cylinder (4).Meanwhile, section hydraulic oil is had to enter buffering boosting oil circuit (1), so that buffering boosting oil circuit (1) sets up the initial pressure value that buffering boosting is required.
When hydraulic oil is full of shift clutch oil cylinder (4), the driving current vanishes that ECU sends to two-position two-way solenoid valve (2), two-position two-way solenoid valve (2) is converted to its normal orientation under the action of the spring, valve port is closed, quick oil-filled oil circuit is cut off, the hydraulic oil of working connection arrives shift clutch oil cylinder (4) after buffering boosting oil circuit (1), and is carried out buffering boosting by buffering boosting oil circuit (1), reduces shift shock.
Claims (4)
1. a quick oil-filled hydraulic pressure shifting system, mainly include quick oil-filled oil circuit and buffering boosting oil circuit, it is characterized in that: described quick oil-filled oil circuit is made up of two-position two-way solenoid valve, check valve, described buffering boosting oil circuit oil-in connects with working connection, oil-out connects with shift clutch oil cylinder, described two-position two-way solenoid valve oil-in connects with working connection, and oil-out connects with the oil inlet end of check valve, and the oil-out of check valve connects with shift clutch oil cylinder.
2. the quick oil-filled hydraulic pressure shifting system of one according to claim 1, it is characterised in that: the nominal flow rate of described two-position two-way solenoid valve and check valve allows the maximum stream flow passed through more than buffering boosting oil circuit.
3. the quick oil-filled hydraulic pressure shifting system of one according to claim 1, it is characterised in that: described two-position two-way solenoid valve is in the normal state position before gearshift, and valve port is closed.
4. the quick oil-filled hydraulic pressure shifting system of one according to claim 1, it is characterized in that: described two-position two-way solenoid valve is by ECU control, described ECU often receives a gear shifting signal, send the driving electric current of a specific duration to two-position two-way solenoid valve, the duration of this driving electric current is full of the time needed for shift clutch oil cylinder equal to hydraulic oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410084835.XA CN103836176B (en) | 2014-03-10 | 2014-03-10 | Quick oil-filled hydraulic pressure shifting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410084835.XA CN103836176B (en) | 2014-03-10 | 2014-03-10 | Quick oil-filled hydraulic pressure shifting system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103836176A CN103836176A (en) | 2014-06-04 |
| CN103836176B true CN103836176B (en) | 2016-06-15 |
Family
ID=50799955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410084835.XA Expired - Fee Related CN103836176B (en) | 2014-03-10 | 2014-03-10 | Quick oil-filled hydraulic pressure shifting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103836176B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134677A (en) * | 2015-01-27 | 2015-12-09 | 四川大学 | Fast hydraulic gear shifting system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3418026A1 (en) * | 1984-05-15 | 1985-11-21 | Mannesmann Rexroth GmbH, 8770 Lohr | Winch for picking up floating loads, especially in a swell |
| US5097745A (en) * | 1989-06-20 | 1992-03-24 | Liebherr-Aero-Technik Gmbh | Speed control valve for a hydraulic motor speed controlled by pressure between throttle and motor |
| CN102168754A (en) * | 2011-04-08 | 2011-08-31 | 浙江万里扬变速器股份有限公司 | Hydraulic control system for wet-type double-clutch automatic transmission |
| CN203892538U (en) * | 2014-03-10 | 2014-10-22 | 四川大学 | Fast oil filling hydraulic gear shifting system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5794802B2 (en) * | 2011-03-25 | 2015-10-14 | 三菱農機株式会社 | Hydraulic device for work vehicle |
-
2014
- 2014-03-10 CN CN201410084835.XA patent/CN103836176B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3418026A1 (en) * | 1984-05-15 | 1985-11-21 | Mannesmann Rexroth GmbH, 8770 Lohr | Winch for picking up floating loads, especially in a swell |
| US5097745A (en) * | 1989-06-20 | 1992-03-24 | Liebherr-Aero-Technik Gmbh | Speed control valve for a hydraulic motor speed controlled by pressure between throttle and motor |
| CN102168754A (en) * | 2011-04-08 | 2011-08-31 | 浙江万里扬变速器股份有限公司 | Hydraulic control system for wet-type double-clutch automatic transmission |
| CN203892538U (en) * | 2014-03-10 | 2014-10-22 | 四川大学 | Fast oil filling hydraulic gear shifting system |
Non-Patent Citations (3)
| Title |
|---|
| 蓄能器对换挡离合器充油过程影响研究;张静等;《液压与气动》;20130331(第3期);第96-99页 * |
| 车辆动力换挡离合器充油过程动态特性仿真;马彪;《北京理工大学学报》;20000430;第20卷(第2期);全文 * |
| 重型车辆动力换挡过程离合器结合动作时序控制;赵国奇等;《中国西部科技》;20120630;第11卷(第06期);全文 * |
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| Publication number | Publication date |
|---|---|
| CN103836176A (en) | 2014-06-04 |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160615 Termination date: 20180310 |