CN101769368B - Hydraulic flowout type hydrodynamic drive device - Google Patents
Hydraulic flowout type hydrodynamic drive device Download PDFInfo
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- CN101769368B CN101769368B CN 201010131549 CN201010131549A CN101769368B CN 101769368 B CN101769368 B CN 101769368B CN 201010131549 CN201010131549 CN 201010131549 CN 201010131549 A CN201010131549 A CN 201010131549A CN 101769368 B CN101769368 B CN 101769368B
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Abstract
The invention relates to a hydraulic power separating hydrodynamic drive device and belongs to the technical field of hydrodynamic drive. The hydraulic power separating hydrodynamic drive device is characterized by comprising a hydrodynamic drive component, a hydraulic pump, a control valve and a drive motor; a power element is connected with the hydrodynamic drive component and a hydraulic power separating mechanism; and the hydrodynamic drive component and the hydraulic power separating mechanism are then converged in a drive system to output power to perform power drive. The hydraulic power separating hydrodynamic drive device has the advantages of effectively prolonging service life of a clutch and other components, along with simple structure, high drive efficiency, good energy-saving effect and the like, and is convenient for realizing multi-wheel drive so as to increase traction of vehicles.
Description
Technical field
The invention belongs to hydraulic machine drive technology field, particularly relate to a kind of hydraulic power separating hydrodynamic drive device.
Background technique
At present, the hydraulic machine transmission is used in driveline of construction machines widely, and the transmission efficiency that improves power train is very important.Known hydraulic machine transmission is that fluid torque converter, speed-changing gear box, main transmission and whole transmission form.Gear-driven efficiency is the highest and near constant; The major defect of this transmission is because torque converter is low and become parabolic shape; The efficient increase of starting from scratch when low speed is vehicle launch than operating mode usually reaches 75% and thinks and enter efficient district; Beginning to descend to enter by best efficiency point begins at a high speed rapid decline than the time, the absolute zero load is that efficient is zero.Solution has at present: inside and outside power dividing, interior shunting such as two turbine, guide wheel counter-rotating; External shunt is that Partial Power passes through mechanical transmission by mechanical planet row.Raise the efficiency, widen higher efficiency range, but do not change curve shape characteristics---the parabola of efficient.Than under the operating mode, the closing type fluid torque converter is rigidly connected the realization mechanical transmission at a high speed.But owing to continually locking, throwing off very unfavorablely to the life-span of clutch, and rigid impulse loss energy-saving effect and not obvious is arranged for the engineering vehicle of place operation, have the technical problems such as transmission efficiency is low.
Summary of the invention
The technical problem of the present invention for existing in the solution known technology, and a kind of hydraulic power separating hydrodynamic drive device is provided.
The purpose of this invention is to provide and a kind ofly have simple in structurely, transmission efficiency is high, good energy-conserving effect, and alternative conventional clutch realizes that " flexible latch " effectively prolongs the hydraulic power separating hydrodynamic drive device of the characteristics such as transmission component working life.
Hydraulic power separating hydrodynamic drive device of the present invention is comprised of dynamical element such as motor, hydraudynamic drive assembly, oil hydraulic pump, control valve and drive motor.Engine power is respectively through hydraudynamic drive, hydraulic transmission output like this, and then power converges the unified driving vehicle and advances.Because the point difference can be divided into; Turbine output interflow; Powershift transmission output interflow; Drive wheel and converge three kinds of shunting modes.Usually, the power-division ratios of hydraulic shunting is: 30%～50%, and namely the hydraulic pressure maximum output accounts for the percentage of system of vehicle transmission total output.
The technological scheme that the present invention takes for the technical problem that exists in the solution known technology is: a kind of hydraulic power separating hydrodynamic drive device, be characterized in: hydraulic power separating hydrodynamic drive device comprises hydraudynamic drive assembly, oil hydraulic pump, control valve and drive motor, dynamical element connects fluid power transmitting assemblies and hydraulic pressure external shunt mechanism, hydraudynamic drive assembly and hydraulic pressure external shunt mechanism meet at transmission system again, and common output power is carried out motivational drive.
The present invention can also adopt following technological scheme: described hydraulic power separating hydrodynamic drive device, be characterized in: hydraulic power separating hydrodynamic drive device comprises hydraudynamic drive assembly, oil hydraulic pump, control valve and drive motor, dynamical element connects fluid power transmitting assemblies and hydraulic pressure external shunt mechanism, hydraudynamic drive assembly and hydraulic pressure external shunt mechanism meet at transmission system again, and common output power is carried out motivational drive; Described hydraulic power separating hydrodynamic drive device, be characterized in: hydraulic pressure external shunt mechanism adopts the constant-voltage system variable displacement pump, hydraudynamic drive adapts to the variation that remains external load automatically, drives the variation of the variable displacement pump adaptation speed of a motor vehicle and makes mixed drive reach unified speed of a motor vehicle output---common operation point.
Described hydraulic power separating hydrodynamic drive device is characterized in: dynamical element is motor, and the power of motor flows to respectively fluid torque converter and oil hydraulic pump; Fluid torque converter output turbine shaft and gearbox input shaft are same line shaft; Oil hydraulic pump drives oil hydraulic motor, fluid motor-driven gearbox input shaft by pipeline and control pressurer system.
Described hydraulic power separating hydrodynamic drive device is characterized in: dynamical element is motor, and the power of motor flows to respectively hydraulic mechanical transmission box and oil hydraulic pump; The hydraulic mechanical transmission box output shaft links to each other with ransaxle by transmission shaft; Oil hydraulic pump drives oil hydraulic motor by pipeline and control pressurer system, and oil hydraulic motor adopts the axis output string to be associated on the transmission shaft; Power converges at transmission shaft.
Described hydraulic power separating hydrodynamic drive device, be characterized in: dynamical element is motor, the power of motor flows to respectively that hydraulic mechanical transmission box, ransaxle power train drive wheel and oil hydraulic pump drives wheel-side motor by pipeline and control pressurer system, and wheel-side motor is again as the wheel limit of wheel; Power is coupling on the wheel by the road surface and converges.
Advantage and good effect that the present invention has are: hydraulic power separating hydrodynamic drive device is owing to having adopted technological scheme of the present invention, it is exactly in order to solve the low problem of torque-converters transmission efficiency that the power dividing mode is adopted in hydraudynamic drive, starting characteristic parameter that it is not change " torque-converters " from machinery shunting different is such as startup coefficient and moment of torsion, and the simultaneously effect of hydraulic pressure additional force further improves startability; The distribution share of power changes with operating mode, at a high speed than operating mode hydraulic pressure the increase of output power.If the engineering vehicle for the place operation adopts the closing type torque-converters owing to continually locking, disengagement are very unfavorable to the life-span of clutch, and the rigid impulse loss is arranged to energy-saving effect and not obvious, so be not used.Adopt hydraulic power separating hydrodynamic drive device at a high speed than under the operating mode because that preferential, the active drive of hydraulic pressure are loaded at this moment is low, may be most of or all by hydraulic driving.This process is self-reacting, flexible under system pressure control, therefore is referred to as " flexible latch " operating mode.Reach the high purpose of transmission efficiency.The present invention has simple in structure, and transmission efficiency is high, and good energy-conserving effect can effectively prolong the advantages such as transmission component working life.
Description of drawings
Fig. 1 is turbine output confluent structure schematic diagram of the present invention; Fig. 2 is Powershift transmission output confluent structure schematic diagram of the present invention; Fig. 3 is that the present invention drives motor car wheel and converges the mode structural representation.
Among the figure, the 1-motor; The 2-torque-converters; The 3-Powershift transmission; The 4-oil hydraulic pump; The 5-control valve; 6-ransaxle I; 7-transmission shaft I; The 8-drive motor; The 9-parking brake; 10-transmission shaft II; 11-ransaxle II; The 12-motor; The 13-torque-converters; The 14-Powershift transmission; The 15-oil hydraulic pump; The 16-control valve; 17-ransaxle I; 18-transmission shaft I; The 19-drive motor; The 20-parking brake; 21-transmission shaft II; 22-ransaxle II; The 23-motor; The 24-torque-converters; The 25-Powershift transmission; The 26-oil hydraulic pump; The 27-control valve; 28-drives wheel-side motor; 29-ransaxle I; The 30-parking brake; The 31-transmission shaft; 32-ransaxle II.
Embodiment
For further understanding summary of the invention of the present invention, Characteristic, hereby exemplify following examples, and cooperate accompanying drawing to be described in detail as follows: consult accompanying drawing 1 to Fig. 3.
Embodiment's 1 hydraulic power separating hydrodynamic drive device is comprised of dynamical element such as motor, hydraudynamic drive assembly, oil hydraulic pump, control valve and drive motor.Engine power is respectively through hydraudynamic drive, hydraulic transmission output like this, and then power converges the unified driving vehicle and advances.Because the point difference can be divided into; Turbine output interflow; Powershift transmission output interflow; Drive motor car wheel and converge three kinds of shunting modes.Can be respectively referring to Fig. 1, Fig. 2, Fig. 3.
Usually, the power-division ratios of hydraulic shunting is: 30%～50%, and namely the hydraulic pressure maximum output accounts for the percentage of system of vehicle transmission total output.
See also Fig. 1, the power of motor flows to respectively fluid torque converter and oil hydraulic pump.Torque converter output shaft---turbine shaft and gearbox input shaft are same line shaft.Oil hydraulic pump drives oil hydraulic motor by pipeline and control pressurer system, and motor drives the gearbox input shaft.This moment, power converged in this.Realize torque-converters power external shunt.
The characteristics of this shunting are: 1. adopt high-speed motor, volume is little, be convenient to arrange; 2. be not subjected to the restriction of gearbox gear-shift, each gear is all worked under the shunting operating mode; 3. the place product that is adapted to loader is pretended industry and short walk operating mode.
See also Fig. 2, the power of motor flows to respectively hydraulic mechanical transmission box and oil hydraulic pump.Output shaft of gear-box links to each other with ransaxle by transmission shaft.Oil hydraulic pump drives oil hydraulic motor by pipeline and control pressurer system, and motor adopts the axis output string to be associated on the transmission shaft.This moment, power converged at transmission shaft.Realize torque-converters power external shunt.
The characteristics of this shunting are: 1. speed motor in adopting; 2. more than needed being convenient to of transmission shaft surrounding space arranged; 3. be subjected to the restriction of gearbox gear-shift, realize the shunting operating mode for several gears; 4. gearbox places neutral gear can realize that hydraulic pressure drives separately; Motor places the freewheel operating mode, realizes the fluid power drive.
See also Fig. 3, the power of motor flows to respectively that hydraulic mechanical transmission box, ransaxle power train drive wheel and oil hydraulic pump drives wheel-side motor by pipeline and control pressurer system, and wheel-side motor is again as the wheel limit of wheel.Power was coupling on the wheel by the road surface and converged this moment.Realize torque-converters power external shunt.
The characteristics of this shunting are: adopt the low speed wheel-side motor 1.; 2. wheel-side motor is easy to be arranged in the wheel middle part; 3. be subjected to the restriction of gearbox gear-shift, realize the shunting operating mode for the special operation condition of 1～2 gear; 4. gearbox places neutral gear can realize that hydraulic pressure drives separately; Motor places the freewheel operating mode, can realize the fluid power drive.5. be adapted to the full wheel drive of grader, can take full advantage of service weight, tractive force increases approximately 25%～30% than the rear bridge driven grader, improves tractive force; The full wheel drive of tractor, trailer can reduce the tractor volume and weight, increases trailer quantity and corresponding tractive force.
Claims (1)
1. hydraulic power separating hydrodynamic drive device, it is characterized in that: hydraulic power separating hydrodynamic drive device comprises hydraudynamic drive assembly, oil hydraulic pump, control valve and drive motor, dynamical element connects fluid power transmitting assemblies and hydraulic pressure external shunt mechanism, hydraudynamic drive assembly and hydraulic pressure external shunt mechanism meet at transmission system again, and common output power is carried out motivational drive; Hydraulic pressure external shunt mechanism adopts the constant-voltage system variable displacement pump, and hydraudynamic drive adapts to the variation that remains external load automatically, drives the variation of the variable displacement pump adaptation speed of a motor vehicle and makes mixed drive reach unified speed of a motor vehicle output---common operation point; Dynamical element is motor, and the power of motor flows to respectively fluid torque converter and oil hydraulic pump; Fluid torque converter output turbine shaft and gearbox input shaft are same line shaft; Oil hydraulic pump drives oil hydraulic motor, fluid motor-driven gearbox input shaft by pipeline and control pressurer system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010131549 CN101769368B (en) | 2010-03-24 | 2010-03-24 | Hydraulic flowout type hydrodynamic drive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010131549 CN101769368B (en) | 2010-03-24 | 2010-03-24 | Hydraulic flowout type hydrodynamic drive device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101769368A CN101769368A (en) | 2010-07-07 |
| CN101769368B true CN101769368B (en) | 2013-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010131549 Expired - Fee Related CN101769368B (en) | 2010-03-24 | 2010-03-24 | Hydraulic flowout type hydrodynamic drive device |
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| CN (1) | CN101769368B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105946562A (en) * | 2016-05-06 | 2016-09-21 | 三重型装备有限公司 | Mining dumper and driving system thereof |
| CN111806216A (en) * | 2020-07-18 | 2020-10-23 | 太原理工大学 | Loader walking hydrostatic and mechanical hybrid driving system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87107664A (en) * | 1987-11-03 | 1988-12-14 | 罗明远 | Power-diversion stepiess variable drive system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE60317113T2 (en) * | 2002-04-03 | 2008-08-07 | Kanzaki Kokyukoki Mfg. Co., Ltd., Amagasaki | Pump and work vehicle |
| DE102006025348A1 (en) * | 2006-05-31 | 2007-12-06 | Sauer-Danfoss Gmbh & Co Ohg | Hydrostatic-mechanical transmission |
| DE102007059321A1 (en) * | 2007-12-07 | 2009-06-10 | Hytrac Gmbh | Power split transmission |
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2010
- 2010-03-24 CN CN 201010131549 patent/CN101769368B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87107664A (en) * | 1987-11-03 | 1988-12-14 | 罗明远 | Power-diversion stepiess variable drive system |
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| CN101769368A (en) | 2010-07-07 |
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Owner name: DINGSHENG HEAVY INDUSTRY MACHINERY CO., LTD. Free format text: FORMER OWNER: DINGSHENG TIANGONG CONSTRUCTION MACHINERY CO., LTD. Effective date: 20110919 |
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Free format text: CORRECT: ADDRESS; FROM: 300384 XIQING, TIANJIN TO: 300384 NANKAI, TIANJIN |
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Effective date of registration: 20110919 Address after: 300384 Tianjin New Technology Industrial Park Haitai Huayuan Industrial Zone No. 5 North Street Applicant after: Dingsheng Heavy Industry Machinery Co., Ltd. Address before: Hi Tech Park Huayuan Industrial Area North and South Street 300384 Tianjin city Xiqing New Technology Industrial Zone No. 5 Applicant before: Dingsheng Tiangong Construction Machinery Co., Ltd. |
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