CN103899746A - Parallel-connection pressure reducing valve type double-oil-way fast-oil-charging hydraulic gear shift system - Google Patents
Parallel-connection pressure reducing valve type double-oil-way fast-oil-charging hydraulic gear shift system Download PDFInfo
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- CN103899746A CN103899746A CN201410160015.4A CN201410160015A CN103899746A CN 103899746 A CN103899746 A CN 103899746A CN 201410160015 A CN201410160015 A CN 201410160015A CN 103899746 A CN103899746 A CN 103899746A
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- gear shift
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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
- F16H61/02—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 characterised by the signals used
- F16H61/0262—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 characterised by the signals used the signals being hydraulic
- F16H61/0265—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 characterised by the signals used the signals being hydraulic for gearshift control, e.g. control functions for performing shifting or generation of shift signals
- F16H61/0267—Layout of hydraulic control circuits, e.g. arrangement of valves
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Transmission Device (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
A parallel-connection pressure reducing valve type double-oil-way fast-oil-charging hydraulic gear shift system comprises a pressure regulating oil way composed of an existing hydraulic gear shift pressure control valve, and a fast oil charging oil way composed of a check valve and a pressure reducing valve. An oil inlet of the pressure regulating oil way is connected with a main oil way of the system, and an oil outlet of the pressure regulating oil way is connected with a gear shift clutch oil cylinder. An oil inlet of the fast oil charging oil way, namely an oil inlet of the pressure reducing valve, is connected with the main oil way of the system, and an oil outlet of the fast oil charging oil way, namely an oil outlet of the check valve, is connected with the gear shift clutch oil cylinder. An oil outlet of the pressure reducing valve is connected with an oil inlet of the check valve. According to the parallel-connection pressure reducing valve type double-oil-way fast-oil-charging hydraulic gear shift system, in the stage of charging liquid into the clutch hydraulic cylinder, oil is charged into the gear shift clutch hydraulic cylinder jointly through the fast oil charging oil way and the pressure regulating oil way so that the gear shift clutch hydraulic cylinder can be filled with the hydraulic oil faster, and the gear shift time can be effectively shortened.
Description
Technical field
The present invention relates to a kind of hydraulic gear-shifting system, particularly a kind of two quick oil-filled hydraulic pressure shifting systems of oil circuit of reduction valve type in parallel that can effectively shorten the large-scale engineering machinery gearshift time.
Background technique
Along with the correlation technique of engineering machinery is in development and the maturation of China, people are more and more higher to the requirement of shift quality, and shift process is wanted steadily and be completed rapidly as far as possible, to reduce wearing and tearing and the power interruption of friction element.Utilizing dynamic power shift gear box is the method for current the most general raising shift quality, and it mainly regulates the oil pressure variation in shift process and then control shift clutch by hydraulic gear-shifting pressure controlled valve and ensures.
Generally, shift process comprises to gap elimination, clutch pressure uphill process between clutch hydraulic cylinder topping up, friction plate sheet.Wherein wish to eliminate needed time to gap between clutch topping up and friction plate sheet short, clutch pressure uphill process is wanted steadily.
Although can realizing buffering, current hydraulic gear-shifting pressure controlled valve on the market boosts, but because the aperture of the restriction of hydraulic gear-shifting pressure controlled valve inside is less, and the valve port opening of adjusting pressuring valve core constantly reduces in quick Oil feeding process, cause fluid can not be full of fast shift clutch oil hydraulic cylinder, finally cause shift clutch Oil feeding process to slow down, extended the gearshift time.
Summary of the invention
The problem slowing down in order to solve the Oil feeding process that exists in existing hydraulic gear-shifting pressure controlled valve, the present invention aims to provide a kind of two quick oil-filled hydraulic pressure shifting systems of oil circuit of parallel reduction valve type that can effectively shorten the gearshift time.
The technical solution adopted for the present invention to solve the technical problems is: the two quick oil-filled hydraulic pressure shifting systems of oil circuit of a kind of reduction valve type in parallel, mainly comprise quick oil-filled oil circuit and pressure regulation oil circuit.
Described pressure regulation oil circuit is made up of existing hydraulic gear-shifting pressure controlled valve.
Described quick oil-filled oil circuit is made up of reduction valve, one-way valve.
The filler opening of described pressure regulation oil circuit is communicated with working connection, and oil outlet is communicated with shift clutch oil hydraulic cylinder.Described reduction valve filler opening is communicated with working connection, and oil outlet is communicated with one-way valve filler opening, and one-way valve oil outlet is connected with shift clutch oil hydraulic cylinder.
The nominal flow rate of described reduction valve and one-way valve is greater than pressure regulation oil circuit and allows the peak rate of flow of passing through.
Described reduction valve adopts straight ejector half Fixed pressure reducing valve, its inlet pressure is system working connection oil pressure, and the pressure setting of oil outlet is that hydraulic oil is full of the cracking pressure that shift clutch friction plate gap after shift clutch oil cylinder is eliminated the force value of shift clutch oil hydraulic cylinder hydraulic oil while starting transmitting torque completely and is greater than described one-way valve.
When gearshift because shift clutch oil hydraulic cylinder hydraulic fluid pressure is very little, the hydraulic fluid pressure of the individual event valve oil outlet in described quick oil-filled oil circuit is less than the hydraulic fluid pressure that its filler opening is reduction valve oil outlet, one-way valve is opened, and described quick oil-filled oil circuit is oil-filled fast together with pressure regulation oil circuit.
After hydraulic oil is full of shift clutch oil cylinder, between shift clutch friction plate, eliminate while starting transmitting torque completely in gap, shift clutch oil hydraulic cylinder oil pressure rises rapidly, the hydraulic fluid pressure of the one-way valve oil outlet being connected with shift clutch oil cylinder is greater than the hydraulic fluid pressure of its filler opening, one-way valve is closed, by system working connection through reduction valve, the hydraulic oil that one-way valve arrives shift clutch oil hydraulic cylinder stops flowing, that is quick oil-filled oil circuit stops oil-filled, hydraulic oil enters shift clutch oil hydraulic cylinder by pressure regulation oil circuit and carries out pressure adjusting by pressure regulation oil circuit, reach gearshift requirement.
The invention has the beneficial effects as follows, on existing hydraulic gear-shifting pressure controlled valve, increase by one and directly pass through described reduction valve, one-way valve to the oil-filled quick oil-filled oil circuit of shift clutch oil hydraulic cylinder from system working connection, formed quick oil-filled oil circuit and pressure regulation oil circuit.The gearshift initial stage, oil-filled to gearshift clutch hydraulic cylinder together with pressure regulation oil circuit by quick oil-filled oil circuit, make hydraulic oil be full of at faster speed shift clutch oil hydraulic cylinder, effectively shorten the gearshift time.
Brief description of the drawings
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the hydraulic schematic diagram of current hydraulic shift pressure controlled valve.
Fig. 2 is hydraulic schematic diagram of the present invention.
In figure, 1. oil pump comes oily passage, 2. adjusting pressuring valve core, 3. accumulator plunger, 4. restriction, 5. pressure setting valve, 6. shift clutch oil hydraulic cylinder, 7. one-way valve, 8. reduction valve.
Embodiment
The two quick oil-filled hydraulic pressure shifting systems of oil circuit of a kind of reduction valve type in parallel, mainly comprise quick oil-filled oil circuit and pressure regulation oil circuit.
Described pressure regulation oil circuit is made up of existing hydraulic gear-shifting pressure controlled valve.
Described quick oil-filled oil circuit is made up of individual event valve (7) reduction valve (8).
The filler opening of described pressure regulation oil circuit is communicated with working connection, and oil outlet is communicated with shift clutch oil hydraulic cylinder (6).Described reduction valve (8) filler opening is communicated with working connection, and oil outlet is communicated with one-way valve (7) filler opening, and one-way valve (7) oil outlet is connected with shift clutch oil hydraulic cylinder (6).
The nominal flow rate of described reduction valve (8) and one-way valve (7) is greater than pressure regulation oil circuit and allows the peak rate of flow of passing through.
Described reduction valve (8) adopts straight ejector half Fixed pressure reducing valve, its inlet pressure is system working connection oil pressure, and the oil pressure of oil outlet is set as hydraulic oil and is full of after shift clutch oil hydraulic cylinder (6) cracking pressure that gap between shift clutch liquid friction plate is eliminated the force value of shift clutch oil hydraulic cylinder (6) hydraulic oil while starting transmitting torque completely and is greater than described one-way valve.
When gearshift because shift clutch oil hydraulic cylinder (6) hydraulic fluid pressure is very little, it is the hydraulic fluid pressure of reduction valve (8) oil outlet that the hydraulic fluid pressure of one-way valve (7) oil outlet in described quick oil-filled oil circuit is less than in its filler opening, one-way valve is opened, and described quick oil-filled oil circuit is oil-filled fast together with pressure regulation oil circuit.
After hydraulic oil is full of shift clutch oil hydraulic cylinder (6), between shift clutch friction plate, eliminate while starting transmitting torque completely in gap, shift clutch oil hydraulic cylinder (6) oil pressure rises rapidly, it is reduction valve (8) outlet hydraulic fluid pressure that one-way valve (7) the oil outlet hydraulic fluid pressure being connected with shift clutch oil cylinder is greater than its filler opening, one-way valve (7) is closed, by system working connection through reduction valve (8), the hydraulic oil that one-way valve (7) arrives shift clutch oil hydraulic cylinder (6) stops flowing, that is quick oil-filled oil circuit stops oil-filled, hydraulic oil enters shift clutch oil hydraulic cylinder (6) by pressure regulation oil circuit and carries out pressure adjusting by pressure regulation oil circuit, reach gearshift requirement.
Claims (3)
1. the two quick oil-filled hydraulic pressure shifting systems of oil circuit of reduction valve type in parallel, mainly comprise 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 one-way valve, reduction valve.
2. reduction valve according to claim 1, it is characterized in that: the described buffering oil circuit filler opening that boosts is connected with working connection, oil outlet is connected with shift clutch oil cylinder, described reduction valve filler opening is connected with working connection, oil outlet is connected with one-way valve filler opening, and one-way valve oil outlet is connected with shift clutch oil cylinder.
3. the two quick oil-filled hydraulic pressure shifting systems of oil circuit of one according to claim 1 reduction valve type in parallel, it is characterized in that: described reduction valve is straight ejector half Fixed pressure reducing valve, its inlet pressure is system working connection oil pressure, and the oil pressure of oil outlet is set as hydraulic oil and is full of after shift clutch oil cylinder the cracking pressure that gap between shift clutch friction plate is eliminated the force value of shift clutch oil cylinder hydraulic oil while starting transmitting torque completely and is greater than described one-way valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410160015.4A CN103899746B (en) | 2014-04-22 | 2014-04-22 | The two quick oil-filled hydraulic pressure shifting system of oil circuit of a kind of decompression valve-type in parallel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410160015.4A CN103899746B (en) | 2014-04-22 | 2014-04-22 | The two quick oil-filled hydraulic pressure shifting system of oil circuit of a kind of decompression valve-type in parallel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103899746A true CN103899746A (en) | 2014-07-02 |
| CN103899746B CN103899746B (en) | 2016-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410160015.4A Expired - Fee Related CN103899746B (en) | 2014-04-22 | 2014-04-22 | The two quick oil-filled hydraulic pressure shifting system of oil circuit of a kind of decompression valve-type in parallel |
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| CN (1) | CN103899746B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240422A (en) * | 2015-11-16 | 2016-01-13 | 安徽江淮汽车股份有限公司 | Hydraulic control system of clutch |
| CN105257729A (en) * | 2015-11-16 | 2016-01-20 | 安徽江淮汽车股份有限公司 | Hydraulic control system of clutch |
| CN108302081A (en) * | 2017-12-15 | 2018-07-20 | 纽威数控装备（苏州）有限公司 | A kind of cylinder moving buffering control device |
| CN117489780A (en) * | 2023-12-25 | 2024-02-02 | 中国第一汽车股份有限公司 | Gear shifting transmission device, gear shifting control method and hybrid power vehicle |
Citations (6)
| 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 |
| CN202659880U (en) * | 2012-07-18 | 2013-01-09 | 四川大学 | Hydraulic shifting pressure control valve |
| CN103836019A (en) * | 2014-03-10 | 2014-06-04 | 四川大学 | Fast-charging hydraulic shift valve |
-
2014
- 2014-04-22 CN CN201410160015.4A patent/CN103899746B/en not_active Expired - Fee Related
Patent Citations (6)
| 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 |
| CN202659880U (en) * | 2012-07-18 | 2013-01-09 | 四川大学 | Hydraulic shifting pressure control valve |
| CN103836019A (en) * | 2014-03-10 | 2014-06-04 | 四川大学 | Fast-charging hydraulic shift valve |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240422A (en) * | 2015-11-16 | 2016-01-13 | 安徽江淮汽车股份有限公司 | Hydraulic control system of clutch |
| CN105257729A (en) * | 2015-11-16 | 2016-01-20 | 安徽江淮汽车股份有限公司 | Hydraulic control system of clutch |
| CN105257729B (en) * | 2015-11-16 | 2018-11-16 | 安徽江淮汽车集团股份有限公司 | A kind of clutch fluid pressure control system |
| CN108302081A (en) * | 2017-12-15 | 2018-07-20 | 纽威数控装备（苏州）有限公司 | A kind of cylinder moving buffering control device |
| CN117489780A (en) * | 2023-12-25 | 2024-02-02 | 中国第一汽车股份有限公司 | Gear shifting transmission device, gear shifting control method and hybrid power vehicle |
| CN117489780B (en) * | 2023-12-25 | 2024-03-29 | 中国第一汽车股份有限公司 | Gear shifting transmission device, gear shifting control method and hybrid power vehicle |
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| Publication number | Publication date |
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| CN103899746B (en) | 2016-04-06 |
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Granted publication date: 20160406 Termination date: 20180422 |