CN103836176A - Fast-charging hydraulic shift system - Google Patents
Fast-charging hydraulic shift system Download PDFInfo
- Publication number
- CN103836176A CN103836176A CN201410084835.XA CN201410084835A CN103836176A CN 103836176 A CN103836176 A CN 103836176A CN 201410084835 A CN201410084835 A CN 201410084835A CN 103836176 A CN103836176 A CN 103836176A
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- China
- Prior art keywords
- oil
- oil circuit
- valve
- solenoid valve
- communicated
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- 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
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- 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 fast-charging hydraulic shift system mainly comprises a fast charging oil circuit and a buffer booster oil circuit. The fast charging oil circuit is composed of a two-position two-way electromagnetic valve and a one-way valve. An oil inlet of the buffer booster oil circuit is communicated with a main oil circuit; an oil outlet of the buffer booster oil circuit is communicated with a shift clutch cylinder. An oil inlet of the two-position two-way electromagnetic valve is communicated with the main oil circuit; an oil outlet of the two-position two-way electromagnetic valve is communicated with the oil incoming end of the one-way valve; the oil outgoing end of the one-way valve is communicated with the shift clutch cylinder. The main oil circuit is divided into the fast charging oil circuit and the buffer booster oil circuit; in the initial stage of shifting, hydraulic oil is charged into the shift clutch cylinder through the fast charging oil circuit, so that the hydraulic oil is charged into the shift clutch cylinder at the higher speed and shifting time is shortened effectively.
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 the large-scale engineering machinery gearshift time.
Background technique
Along with engineering machinery is in development and the maturation of China, people require more and more higher for shift quality, and the dynamic power shift gear box at home application in engineering machinery is also more and more universal.The key property of dynamic power shift gear box shift gears exactly stationarity and rapidity, mainly guarantee by hydraulic gear-shifting trimmer valve control shift clutch.
In shift clutch cohesive process, need experienced three stages: fast oil-filled, buffering is boosted and step is boosted.Wherein, the quick oil-filled stage need to overcome the precompression of shift clutch release spring, eliminates the gap of friction plate, and this stage directly affects the gearshift time.
Although can realizing buffering, current hydraulic gear-shifting trimmer valve on the market boosts, but because the aperture of the restriction of hydraulic gear-shifting trimmer valve inside is little, and the valve port opening of adjusting pressuring valve core constantly reduces in the course of the work, cause fluid can not be filled with fast shift clutch oil cylinder, finally cause shift clutch Oil feeding process to slow down, the gearshift time increases.
Summary of the invention
In order to overcome the deficiency of existing hydraulic gear-shifting trimmer valve, the present invention aims to provide a kind of novel quick oil-filled hydraulic pressure shifting system that can effectively shorten the gearshift 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 comprises quick oil-filled oil circuit and the buffering oil circuit that boosts.
The described buffering oil circuit that boosts 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, one-way valve.
The boost filler opening of oil circuit of described buffering is communicated with working connection, and oil outlet is communicated with shift clutch oil cylinder.
Described two-position two-way solenoid valve filler opening is communicated with working connection, and oil outlet is communicated with the oil inlet end of one-way valve, and the oil outlet end of one-way valve is communicated with shift clutch oil cylinder.
The nominal flow rate of described two-position two-way solenoid valve and one-way valve is greater than the buffering oil circuit that boosts and allows the peak rate of flow of passing through.
The described two-position two-way solenoid valve position that is in the normal state before gearshift, valve port is closed.
Described two-position two-way solenoid valve is by ECU (Electrical Control Unit) control, gear shifting signal of the every reception of described ECU (Electrical Control Unit), send the driving current of a specific duration to two-position two-way solenoid valve, the duration of this driving current equals hydraulic oil and is full of the required time of shift clutch oil cylinder.
When gearshift, ECU (Electrical Control Unit) receives after gear shifting signal, send the driving current of a specific duration to two-position two-way solenoid valve, make two-position two-way solenoid valve in supplying current potential, valve port is opened, the hydraulic oil of working connection passes through two-position two-way solenoid valve, one-way valve successively, carries out oil-filled fast to gearshift clutch oil cylinder.Meanwhile, have part hydraulic oil to enter and cushion the oil circuit that boosts, so that buffering is boosted, oil circuit is set up the initial pressure value that buffering is boosted required.
In the time that hydraulic oil is full of shift clutch oil cylinder, the driving current that ECU (Electrical Control Unit) is sent to two-position two-way solenoid valve disappears, two-position two-way solenoid valve is converted to normality position under the effect of spring, valve port is closed, quick oil-filled oil circuit is cut off, the hydraulic oil of working connection boosts after oil circuit and arrives shift clutch oil cylinder through buffering, and cushion and boosted by the buffering oil circuit that boosts, and reduces gearshift impact.
The invention has the beneficial effects as follows, working connection is divided into quick oil-filled oil circuit and the buffering oil circuit that boosts, the gearshift initial stage, first oil-filled to gearshift clutch oil cylinder by quick oil-filled oil circuit, make hydraulic oil be filled with at faster speed shift clutch oil cylinder, effectively shorten the gearshift time.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is hydraulic schematic diagram of the present invention.
In figure, 1. cushion the oil circuit that boosts, 2. two-position two-way solenoid valve, 3. one-way valve, 4. shift clutch oil cylinder.
Embodiment
A kind of quick oil-filled hydraulic pressure shifting system, mainly comprises quick oil-filled oil circuit and the buffering oil circuit (1) that boosts.
The described buffering oil circuit (1) that boosts 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), one-way valve (3).
The boost filler opening of oil circuit (1) of described buffering is communicated with working connection, and oil outlet is communicated with shift clutch oil cylinder (4).
Described two-position two-way solenoid valve (2) filler opening is communicated with working connection, and oil outlet is communicated with the oil inlet end of one-way valve (3), and the oil outlet end of one-way valve (3) is communicated with shift clutch oil cylinder (4).
The nominal flow rate of described two-position two-way solenoid valve (2) and one-way valve (3) is greater than the buffering oil circuit (1) that boosts and allows the peak rate of flow of passing through.
Described two-position two-way solenoid valve (2) position that is in the normal state before gearshift, valve port is closed.
Described two-position two-way solenoid valve (2) is by ECU (Electrical Control Unit) control, gear shifting signal of the every reception of described ECU (Electrical Control Unit), send the driving current of a specific duration to two-position two-way solenoid valve (2), the duration of this driving current equals hydraulic oil and is full of the required time of shift clutch oil cylinder (4).
When gearshift, ECU (Electrical Control Unit) receives after gear shifting signal, send the driving current of a specific duration to two-position two-way solenoid valve (2), make two-position two-way solenoid valve (2) in supplying current potential, valve port is opened, the hydraulic oil of working connection passes through two-position two-way solenoid valve (2), one-way valve (3) successively, carries out oil-filled fast to gearshift clutch oil cylinder (4).Meanwhile, have part hydraulic oil to enter and cushion the oil circuit (1) that boosts, so that buffering is boosted, oil circuit (1) is set up the initial pressure value that buffering is boosted required.
In the time that hydraulic oil is full of shift clutch oil cylinder (4), the driving current that ECU (Electrical Control Unit) is sent to two-position two-way solenoid valve (2) disappears, two-position two-way solenoid valve (2) is converted to normality position under the effect of spring, valve port is closed, quick oil-filled oil circuit is cut off, the hydraulic oil of working connection boosts and arrives shift clutch oil cylinder (4) after oil circuit (1) through buffering, and cushion and boosted by the buffering oil circuit (1) that boosts, and reduces the impact of shifting gears.
Claims (5)
1. a quick oil-filled hydraulic pressure shifting system, mainly comprises quick oil-filled oil circuit and the buffering oil circuit that boosts, and it is characterized in that: described quick oil-filled oil circuit is made up of two-position two-way solenoid valve, one-way valve.
2. the quick oil-filled hydraulic pressure shifting system of one according to claim 1, is characterized in that: described two-position two-way solenoid valve filler opening is communicated with working connection, and oil outlet is communicated with the oil inlet end of one-way valve, and the oil outlet end of one-way valve is communicated with shift clutch oil cylinder.
3. the quick oil-filled hydraulic pressure shifting system of one according to claim 1, is characterized in that: the nominal flow rate of described two-position two-way solenoid valve and one-way valve is greater than the buffering oil circuit that boosts and allows the peak rate of flow of passing through.
4. the quick oil-filled hydraulic pressure shifting system of one according to claim 1, is characterized in that: the described two-position two-way solenoid valve position that is in the normal state before gearshift, valve port is closed.
5. 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 (Electrical Control Unit) control, gear shifting signal of the every reception of described ECU (Electrical Control Unit), send the driving current of a specific duration to two-position two-way solenoid valve, the duration of this driving current equals hydraulic oil and is full of the required time of shift clutch oil cylinder.
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 true CN103836176A (en) | 2014-06-04 |
| CN103836176B CN103836176B (en) | 2016-06-15 |
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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) |
Cited By (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 (5)
| 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 |
| JP2012201264A (en) * | 2011-03-25 | 2012-10-22 | Mitsubishi Agricultural Machinery Co Ltd | Hydraulic device of working vehicle |
| CN203892538U (en) * | 2014-03-10 | 2014-10-22 | 四川大学 | Fast oil filling hydraulic gear shifting system |
-
2014
- 2014-03-10 CN CN201410084835.XA patent/CN103836176B/en not_active Expired - Fee Related
Patent Citations (5)
| 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 |
| JP2012201264A (en) * | 2011-03-25 | 2012-10-22 | Mitsubishi Agricultural Machinery Co Ltd | Hydraulic device of working vehicle |
| 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 |
|---|
| 张静等: "蓄能器对换挡离合器充油过程影响研究", 《液压与气动》, no. 3, 31 March 2013 (2013-03-31) * |
| 赵国奇等: "重型车辆动力换挡过程离合器结合动作时序控制", 《中国西部科技》, vol. 11, no. 06, 30 June 2012 (2012-06-30) * |
| 马彪: "车辆动力换挡离合器充油过程动态特性仿真", 《北京理工大学学报》, vol. 20, no. 2, 30 April 2000 (2000-04-30) * |
Cited By (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 |
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| Publication number | Publication date |
|---|---|
| CN103836176B (en) | 2016-06-15 |
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