CN104595431B - A kind of big-power tractor hydraulic mechanical stepless gearbox - Google Patents
A kind of big-power tractor hydraulic mechanical stepless gearbox Download PDFInfo
- Publication number
- CN104595431B CN104595431B CN201510052579.0A CN201510052579A CN104595431B CN 104595431 B CN104595431 B CN 104595431B CN 201510052579 A CN201510052579 A CN 201510052579A CN 104595431 B CN104595431 B CN 104595431B
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- China
- Prior art keywords
- power
- section
- planet row
- section gear
- gear pairs
- 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.)
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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
- F16H47/00—Combinations of mechanical gearing with fluid clutches or fluid gearing
- F16H47/02—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type
- F16H47/04—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type the mechanical gearing being of the type with members having orbital motion
-
- 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
-
- 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
- F16H2061/0012—Transmission control for optimising power output of driveline
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Motor Power Transmission Devices (AREA)
- Control Of Fluid Gearings (AREA)
- Structure Of Transmissions (AREA)
Abstract
The invention discloses a kind of big-power tractor hydraulic mechanical stepless gearbox new structural design schemes, which is characterized in that power input shaft (3) and power output shaft (9) are on same axis always；When big-power tractor traveling or parking, the output of PTO can be achieved by the movement of independent manipulation double-action clutch (2)；The power of four sections output, be by busbar connector hydraulic power and machine power by preceding planet row (16) and after the output later of planet row (15) confluence.The speed changer has following characteristics: compact-sized, Sizes, and power distributes the different operating conditions that can meet tractor, and output revolving speed, torque can be automatically adjusted according to the variation of extraneous load, guarantees that engine works in the best condition；The design scheme is integrated with the advantages of mechanical step speed change and hydrostatic variable speed, and four sections are exported after hydraulic machinery converges, and improves transmission efficiency.
Description
Technical field
The invention belongs to Hydrostatic-mechanical Transmission fields, relate to a kind of big-power tractor hydraulic mechanical stepless gearbox.
Background technique
Continuous improvement with country to Machinery Automation, intelligent requirements, high-power, Multipurpose tractor have become
For the inexorable trend of future development.Hydraulic mechanical stepless gearbox is used on big-power tractor, it is either dilatory to improving
The operability of machine reduces driver's labor intensity, or square to vehicle dynamic property, fuel economy and working efficiency etc. is promoted
Face all has apparent advantage and good application prospect.The speed changer that patent text 201120388095.0 proposes is by becoming
Measure pump, fixed displacement motor, the big primary element of planet busbar connector three composition, but there are volume greatly, low efficiency, it is difficult to install the deficiencies of.
To solve these technical problems, this patent proposes a kind of new structural design scheme.
Summary of the invention
The invention proposes it is a kind of it is compact-sized it is simple, PTO output is convenient and reliable, transmission efficiency is high, control system can be with
The hydraulic mechanical stepless gearbox scheme for realizing forward and reverse multistage consecutive variations can solve well known hydraulic machinery variable speed
Device is bulky, many technical problems such as difficult to install.
The invention discloses a kind of big-power tractor hydraulic mechanical stepless gearboxes, including independent manipulation double acting clutch
Device (2), cabinet (5) and the intracorporal power input shaft of case (3), power output shaft (9), busbar connector hydraulic power input shaft (19),
Busbar connector hydraulic power inputs public sun wheel shaft (13), a section gear pair (11) and three section gear pairs (14), two sections
Gear pair (18) and four section gear pairs (17)；It is characterized in that: the independence of PTO can be achieved in independent manipulation double-action clutch (2)
Output, the independent manipulation double-action clutch (2), which can also be realized, carries out engine power (1) by power input shaft (3)
It shunts, power is inputed to variable pump (6) by hydraulic power distribution gear secondary (4)；On busbar connector machine power input shaft (19) left side
End is equipped with forward/backward synchronizer (20), which is equipped with preceding planet row (16)；The input of busbar connector hydraulic power is public
Planet row (15) after sun wheel shaft (13) support, the axis right end couple with fixed displacement motor (12), and the power input of the axis is by pump-
Motor system transmitting；One section driven gear, two section driven gears, three section driven gears and four section driven gears are empty
Cover on power output shaft (9), one, three segment sync devices (10) can individually with a section gear pair (11) and three section gear pairs
(14) coupling, two, four segment sync devices (8) can individually couple with two section gear pairs (18) and four section gear pairs (17), when
When described one, three segment sync devices (10) or two, four segment sync devices (8) are combined with power output shaft (9) respectively, it can be realized
Four sections pass through power output shaft (9) output power.
The engine power 1 can realize that the independent hierarchical of PTO is exported by independent operation double-action clutch 2, described
Engine power 1 can be also transmitted to power input shaft 3 by independent manipulation double-action clutch 2, or engine power is distinguished
It is transmitted to PTO and power input shaft 3.
1 power of engine is shunted by power input shaft 3, distributes to 19 He of busbar connector machine power input shaft
Busbar connector hydraulic power inputs public sun wheel shaft 13, then premenstrual planet row 16 and rear planet row 15 converge, by hydraulic pressure system
The adjusting of system flow, flow direction controls motor rotary speed and steering, and then realizes the output of busbar connector variable speed.
The busbar connector machine power input shaft 19, is adopted with preceding 16 pinion frame of planet row and 15 ring gear of rear planet row
With rigid attachment, which is by advance/fallback synchronization device on forward/backward gear pair 7 or gear pair 21 and axis
20 are implemented in combination with, and idle pulley 22 can realize and reverse gear.
The busbar connector hydraulic power inputs public sun wheel shaft 13, and coaxial two gears arranged side by side on the left of the gear shaft divide
Not Wei preceding planet row 16 and rear planet row 15 sun gear.
The busbar connector hydraulic power, which inputs public sun wheel shaft 13, carries the input of busbar connector hydraulic power, rear planet
Planet carrier and a section gear pair 11, the three section gear pairs 14 of row 15 use rigid attachment, a section gear pair 11 and 3rd area
Section gear pair 14 is in long meshing state, when the driven gear or three of one, three segment sync devices 10 and a section gear pair 11
When the driven gear of section gear pair 14 individually combines, the variable speed of a section, three sections can be realized respectively.
The ring gear of the preceding planet row 16 and two section gear pairs 18, four section gear pairs 17 use rigid attachment, and two
Section gear pair 18 and four section gear pairs 17 are in normal meshing state.When two, four segment sync devices 8 and two section gear pairs 18
Driven gear or the driven gear of four section gear pairs 17 when individually combining, can realize the nothing of two sections and four sections respectively
Grade speed change.
The 5 internally-powered input shaft 3 of cabinet and 9 coaxial line of power output shaft arrangement, the input of busbar connector hydraulic power are public
Sun wheel shaft 13 and busbar connector machine power input shaft 19 are on the same axis；Forward/backward synchronizer 20 is arranged in busbar connector
On machine power input shaft 19, two, four segment sync devices 8 and one, three segment sync devices 10 are arranged on power output shaft 9.
Detailed description of the invention
Fig. 1 is a kind of structure principle chart of big-power tractor hydraulic mechanical stepless gearbox.
Figure label title: 1- engine；2- independent manipulation double-action clutch；3- power input shaft；4- hydraulic power
Distribution gear pair；5- cabinet；6- variable pump；The forward/backward gear pair of 7-；8- bis-, four segment sync devices；9- power output shaft；
10- mono-, three segment sync devices；Mono- section gear pair of 11-；12- fixed displacement motor；13- busbar connector hydraulic power inputs the public sun
Wheel shaft；Tri- section gear pair of 14-；Planet row after 15；Planet row before 16-；Tetra- section gear pair of 17-；Bis- section gear pair of 18-；
19- busbar connector machine power input shaft；The forward/backward synchronizer of 20-；The forward/backward gear pair of 21-；22- idle pulley.
Specific embodiment
The present invention is a kind of big-power tractor hydraulic mechanical stepless gearbox, and 1 power of engine passes through power input shaft 3
Mechanical driving part and hydraulic drive portion are diverted to through advance/backward gear pair 21 or 7 and hydraulic power distribution gear pair 4 respectively
Point, carry out dynamic branch.Forward/backward synchronizer 20 can be combined individually with forward/backward gear pair 21 or 7 respectively, thus real
The advance and retrogressing of existing tractor, wherein the realization retreated is realized by increasing idle pulley 22.Variable pump 6 passes through high-pressure oil pipe
Connect with fixed displacement motor 12, the discharge capacity ratio of this variable pump 6 by electric control module controls, it can be achieved that discharge capacity ratio from -1~0~+1 variation,
12 output shaft revolving speed of fixed displacement motor will realize that busbar connector hydraulic power inputs the public sun from reversion~stopping~rotating forward variation
The positive and negative rotation of wheel shaft.
When one, three segment sync devices 10, when two, four segment sync devices 8 are in discrete state, four section gear pairs are located
In idling conditions, the not outside output power of speed changer, tractor is in parked state.
When one, three segment sync devices 10 and a section gear pair 11 in conjunction with and other segment sync devices separate when, pumpage
Than adjusting to -1, after being completely combined, variable pump electronic control module changes the discharge capacity of variable pump automatically, generates confluence situation such as
Under: only rear planet row 15 acts on the state, and confluence mode is that rear 15 ring gear of planet row and sun gear input, rear 15 tooth of planet row
Wheel carrier output, power pass through a section gear pair 11 and the outside output power of output shaft 9.When in a section, due to variable pump 6
Discharge capacity ratio from -1 to+1 change, the revolving speed of 12 output shaft of fixed displacement motor also changes from reversed maximum value to positive maximum value, after
Planet row 15 realizes the stepless speedup within the scope of a section, before a section under the collective effect of machine power and hydraulic power
Into and rear regression sail speed be 0~7.5 kilometer/hour.
When tractor is in a section working condition, when the discharge capacity ratio of variable pump 6 reaches+1, fixed displacement motor 12 is defeated at this time
Shaft revolving speed reaches rotating forward maximum value, after variable pump electronic control module receives tractor speedup signal, one, three section at this time
Synchronizer 10 is separated with a section gear pair 11, and two, four segment sync devices 8 are combined with two section gear pairs 18, and confluence situation is such as
Under: only preceding planet row 16 acts on the state, and confluence mode is that preceding 16 tooth rest of planet row and sun gear input, preceding 16 tooth of planet row
Ring gear output is taken turns, power passes through two section gear pairs 18 and the outside output power of output shaft 9.When in two sections, due to becoming
The discharge capacity ratio from+1 to -1 of amount pump 6 constantly changes, and the revolving speed of 12 output shaft of fixed displacement motor is also from positive maximum value to reversed maximum
Value variation, preceding planet row 16 are realized stepless within the scope of two sections under the collective effect of machine power stream and hydraulic power stream
Speedup, the travel speed that two sections advance and retreat is 7.5~14 kilometers/hour.
When tractor is in two section working conditions, when the discharge capacity ratio of variable pump 6 reaches -1, fixed displacement motor 12 is exported at this time
Axis revolving speed reaches reversion maximum value, and after variable pump electronic control module, which receives tractor, increases gear signal, two, four sections are same at this time
Step device 8 is separated with two section gear pairs 18, and one, three segment sync devices 10 are combined with three section gear pairs 14, and confluence situation is as follows:
Only rear planet row 15 acts on the state, and confluence mode is that rear 15 ring gear of planet row and sun gear input, rear 15 gear of planet row
Frame output, power pass through three section gear pairs 14 and the outside output power of output shaft 9.When in three sections, due to 6 row of variable pump
Amount from -1 to+1 constantly variation, the revolving speed of motor output shaft also change from reversed maximum value to positive maximum value, rear planet row 15
Under the collective effect of machine power stream and hydraulic power stream, realize the stepless speedup within the scope of three sections, three sections advance and
The travel speed of retrogressing is 14~26 kilometers/hour.
When tractor is in three section working conditions, and 3 discharge capacity ratio of variable pump reaches+1,12 output shaft of fixed displacement motor at this time
Revolving speed reaches reversion maximum value, after variable pump electronic control module receives tractor speedup signal, one, three segment sync at this time
Device 10 is separated with three section gear pairs 14, and two, four segment sync devices 8 are combined with four section gear pairs 17, and confluence situation is as follows: should
Only preceding planet row 16 acts on state, and confluence mode is that preceding 16 tooth rest of planet row and sun gear input, in preceding 16 gear of planet row
Gear ring output, power pass through four section gear pairs 17 and the outside output power of output shaft 9.When in four sections, due to variable pump 7
Discharge capacity ratio from+1 to -1 constantly changes, and the revolving speed of motor output shaft also changes from positive maximum value to reversed maximum value, preceding planet
Row 16 realizes the stepless speedup within the scope of four sections under the collective effect of machine power stream and hydraulic power stream, before four sections
Into and retreat travel speed be 26~50 kilometers/hour.
When big-power tractor traveling or parking, it can manipulate independent manipulation double-action clutch 2 and realize PTO power
Output.
Claims (3)
1. a kind of big-power tractor hydraulic mechanical stepless gearbox, as shown in the picture, including independent manipulation double-action clutch
(2), cabinet (5) and the intracorporal power input shaft of case (3), power output shaft (9), busbar connector hydraulic power input shaft (19) converge
It flows drain pressure power and inputs public sun wheel shaft (13), a section gear pair (11) and three section gear pairs (14), two section teeth
Wheel set (18) and four section gear pairs (17)；It is characterized in that: the independence that PTO can be achieved in independent manipulation double-action clutch (2) is defeated
Out, the independent manipulation double-action clutch (2), which can also be realized, is divided engine power (1) by power input shaft (3)
Power is inputed to variable pump (6) by stream, hydraulic power distribution gear secondary (4)；In busbar connector machine power input shaft (19) left end
Forward/backward synchronizer (20) are equipped with, which is equipped with preceding planet row (16)；The input of busbar connector hydraulic power is public too
Planet row (15) after positive wheel shaft (13) support, the axis right end couple with fixed displacement motor (12), and the power input of the axis is by pump-horse
It is transmitted up to system；One section driven gear, two section driven gears, three section driven gears and the four equal empty sets of section driven gear
On power output shaft (9), one, three segment sync devices (10) can individually with a section gear pair (11) and three section gear pairs
(14) coupling, two, four segment sync devices (8) can individually couple with two section gear pairs (18) and four section gear pairs (17), when
When described one, three segment sync devices (10) or two, four segment sync devices (8) are combined with power output shaft (9) respectively, it can be realized
Four sections pass through power output shaft (9) output power, two section gear pairs (18) and four section gear pairs (17) and preceding planet
(16) ring gear rigid attachment, the planet carrier of section gear pair (11) Ji Sanqu end tooth wheel set (14) and rear planet row (15)
Rigid attachment；The planet carrier of preceding planet row (16) and the ring gear rigid attachment of rear planet row (15), a section gear pair (11)
It is in meshing state with three section gear pairs (14), two section gear pairs (18) and four section gear pairs (17) are in often engagement shape
State.
2. big-power tractor hydraulic mechanical stepless gearbox according to claim 1, it is characterized in that: the power inputs
Axis (3) and power output shaft (9) are on same axis always.
3. big-power tractor hydraulic mechanical stepless gearbox according to claim 1, it is characterized in that: four sections
The power of output, be by busbar connector hydraulic power and machine power by preceding planet row (16) and after planet row (15) converge it
It exports afterwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510052579.0A CN104595431B (en) | 2015-01-28 | 2015-01-28 | A kind of big-power tractor hydraulic mechanical stepless gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510052579.0A CN104595431B (en) | 2015-01-28 | 2015-01-28 | A kind of big-power tractor hydraulic mechanical stepless gearbox |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104595431A CN104595431A (en) | 2015-05-06 |
| CN104595431B true CN104595431B (en) | 2019-10-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510052579.0A Expired - Fee Related CN104595431B (en) | 2015-01-28 | 2015-01-28 | A kind of big-power tractor hydraulic mechanical stepless gearbox |
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| CN106763564B (en) * | 2017-02-15 | 2018-11-27 | 苏州萨伯工业设计有限公司 | Five gear drive method of machine liquid mixing |
| CN107166005B (en) * | 2017-07-13 | 2019-07-30 | 广西柳工机械股份有限公司 | Mechanical-hydraulic mixes stepless transfer gear box |
| CN108343720A (en) * | 2018-04-08 | 2018-07-31 | 河南科技大学 | A kind of heavy vehicles Multi-Range Hydro-Mechanical Stepless speed changer |
| AT521773B1 (en) * | 2018-11-13 | 2020-05-15 | Avl Commercial Driveline & Tractor Eng Gmbh | Drive train for a motor vehicle |
| CN109296724A (en) * | 2018-11-15 | 2019-02-01 | 山东海卓电液控制工程技术研究院 | Double-planet five-part form hydraulic mechanical stepless gearbox |
| CN109353210A (en) * | 2018-11-23 | 2019-02-19 | 河南科技大学 | A kind of mixed-power tractor stepless transmission |
| CN111946794B (en) * | 2020-07-20 | 2021-08-03 | 江苏大学 | Power split type mechanical-hydraulic compound transmission system with automatic adjusting function |
| CN114017484B (en) * | 2021-11-05 | 2022-06-03 | 南京农业大学 | Three-planetary-row three-section type hydraulic mechanical continuously variable transmission of high-power tractor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0382132A2 (en) * | 1989-02-10 | 1990-08-16 | Friedrich Prof. Dr.-Ing. Jarchow | Continuous hydromechanical power transmission with toothed clutches |
| DE59808016D1 (en) * | 1997-08-12 | 2003-05-28 | Spicer Off Highway Belgium Nv | Power shift transmission for a mobile machine |
| EP1449703A2 (en) * | 2003-02-24 | 2004-08-25 | Kubota Corporation | Traveling transmission apparatus for work vehicle |
| CN102359567A (en) * | 2011-10-13 | 2012-02-22 | 南京农业大学 | Full-automatic continuously variable transmission of tractor |
| CN104088926A (en) * | 2014-06-27 | 2014-10-08 | 江苏大学 | Clutch hydraulic control system of single-planet-row convergence hydraulic mechanical continuously variable transmission |
| CN204647180U (en) * | 2015-01-28 | 2015-09-16 | 南京农业大学 | A kind of big-power tractor hydraulic mechanical stepless gearbox |
-
2015
- 2015-01-28 CN CN201510052579.0A patent/CN104595431B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0382132A2 (en) * | 1989-02-10 | 1990-08-16 | Friedrich Prof. Dr.-Ing. Jarchow | Continuous hydromechanical power transmission with toothed clutches |
| DE59808016D1 (en) * | 1997-08-12 | 2003-05-28 | Spicer Off Highway Belgium Nv | Power shift transmission for a mobile machine |
| EP1449703A2 (en) * | 2003-02-24 | 2004-08-25 | Kubota Corporation | Traveling transmission apparatus for work vehicle |
| CN102359567A (en) * | 2011-10-13 | 2012-02-22 | 南京农业大学 | Full-automatic continuously variable transmission of tractor |
| CN104088926A (en) * | 2014-06-27 | 2014-10-08 | 江苏大学 | Clutch hydraulic control system of single-planet-row convergence hydraulic mechanical continuously variable transmission |
| CN204647180U (en) * | 2015-01-28 | 2015-09-16 | 南京农业大学 | A kind of big-power tractor hydraulic mechanical stepless gearbox |
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| Publication number | Publication date |
|---|---|
| CN104595431A (en) | 2015-05-06 |
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Effective date of registration: 20191213 Address after: 211299, Qinhuai Road, Lishui District, Jiangsu, Nanjing, No. 288 Patentee after: Nanjing Daneng Power Technology Co.,Ltd. Address before: Weigang Xuanwu District of Nanjing Jiangsu province 210095 No. 1 Patentee before: Nanjing Agricultural University |
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Granted publication date: 20191011 Termination date: 20220128 |
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