CN202188076U - Planetary gear continuously variable transmission - Google Patents
Planetary gear continuously variable transmission Download PDFInfo
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- CN202188076U CN202188076U CN2011202839037U CN201120283903U CN202188076U CN 202188076 U CN202188076 U CN 202188076U CN 2011202839037 U CN2011202839037 U CN 2011202839037U CN 201120283903 U CN201120283903 U CN 201120283903U CN 202188076 U CN202188076 U CN 202188076U
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- input shaft
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- speed variator
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Abstract
The utility model discloses a novel gear continuously variable transmission and aims at providing a continuously variable transmission which is big in transmission torque, high in transmission efficiency, good in reliability and good in fuel economy. The planetary gear continuously variable transmission comprises a first input shaft, a second input shaft, a one-way clutch, a gear, a planetary gear ring, a planetary wheel, a first planetary carrier, a sun wheel, a second planetary support and an output shaft. The planetary gear continuously variable transmission achieves a function of continuously variable speed through power input of two degrees of freedom of the first input shaft and the second input shaft. The planetary gear continuously variable transmission is simple in structure, convenient to manufacture and capable of obtaining the function of continuously variable speed effectively.
Description
Technical field
The utility model relates to-kind of speed changer, more particularly, relates to a kind of planet gear stageless speed variator.
Background technique
Two kinds of forms of the general employing of automobile variable speed mechanism, a kind of is step change transmission, a kind of is stepless speed variator.Step change transmission is exactly traditional gear type manual transmission, this transmission operating difficulty, and the class conversion is complicated, and fuel consumption is high, and engine life is also had certain influence; And the stepless speed variator stable starting; Can be according to the best velocity ratio of the different choice of driving condition; Also can under any transmission power, select best running speed and throttle size according to best Economy; Can make automobile no matter under what speed and pavement conditions, always its motor keeps peak efficiency in whole operation process.Compare with conventional gears gearshift transmission, stepless speed variator can reduce oil consumption rate, and the toxic gas in the automobile combustion gas is reduced, and reduces pollution of atmosphere.
To power character, fuel economy, handiness property and the travelling comfort of automotive transmission, existing automotive transmission technology mainly contains automatic transmission and metal band type stepless speed variator.Automatic Transmissions Technique is the automatic transmission technology with fluid torque converter and epicyclic train combination; But the combination of fluid torque converter and epicyclic train has obvious defects: velocity ratio is discontinuous; The efficient of hydraudynamic drive is lower, complex structure, maintenance and maintenance inconvenience.A kind of in addition stepless speed variator (CVT), its adopts metal driving belt and the variable driven wheel of the working diameter incompatible transferring power that matches.CVT can realize continuously changing of velocity ratio, but the deadly defect of CVT is that the metal tape bearing capacity is little, and the power of transmission is limited, and cost is high, and the life-span is also short, and its control system is quite complicated, causes the supplementary costs cost, therefore, can only be used for car.Develop a kind of full rigid gear and continuous, the convenient for production and cheap stepless speed variator of velocity ratio, become mechanical industry urgent problem.
One Chinese patent application numbers 200610156297.6, the open date is on November 19th, 2008, denomination of invention is a hydraulic automatic speed variator.This invention is with its good riding comfort, maneuverability, superior power character, good Security and be widely used easily; Hydraulic automatic speed variator is actually can realize local infinite variable speed step change transmission; Be to adopt maximum automatic transmission both at home and abroad at present, adopt the car of hydraulic automatic speed variator to reach more than 90% in the U.S..But there are defectives such as complex structure, transmission efficiency is low, oil consumption is big in it.
Therefore, study the inexorable trend that its substitute products are automatic transmission development.One of substitute products: one Chinese patent application numbers 200410011419.3; The open date: on September 1st, 2010; Denomination of invention: electric control mechanical type automatic speed variator (AMT), it is under the constant situation of original mechanical transmission basic structure, through installing micro-processor controlled automatic controller additional; Replace the artificial clutch separation of accomplishing of former cause driver and engage, pluck retaining and put into gear and the operations such as synchronization adjusting of motor, finally realize the manipulation automation of shift process.But, the complexity of its control and non-power gear shifting be restricted because causing to use.Two of substitute products: Chinese patent number: 200910116062.8; The open date: on July 21st, 2010, denomination of invention: stepless speed variator (CVT), it can continuously change velocity ratio automatically; Realize the optimum Match of motor, speed changer and road load; Make vehicle have best power character, fuel economy and emission performance, make automobile variable speed more steady, improved the travelling comfort day of taking.But its transmission efficiency is not high, and particularly transmission efficiency is influenced greatly by the operating mode of vehicle variation, and in addition, the working life of its line belt is shorter, also receives certain restriction so it is used.(" Machine Design and the manufacturing " fourth phase, article numbering: 1001-3997 (2010) 04-0141-02 " design studies of planetary pinion power dividing type stepless speed variator ").
Two degrees of freedom that the planet gear stageless speed variator of the utility model, this speed changer make full use of planetary gears according to the variation of input power and load, can realize stepless change.
Summary of the invention
The problem that model utility solves
Problems such as the transmitting torque that is occurred to the metal band type stepless speed variator (CVT) that generally uses now is little, transmission efficiency is lower, reliability is low, fuel economy is relatively poor the utility model provides a kind of planet gear stageless speed variator.
Technological scheme
A kind of planet gear stageless speed variator of the utility model; Comprise first input shaft, second input shaft, overrunning clutch, gear, planetary ring gear, planet wheel, first planet stent, sun gear, second planet stent and output shaft, said planet gear stageless speed variator is realized stepless speed change function through the power input of first input shaft and two degrees of freedom of second input shaft; The said second said input shaft and the same straight line of output shaft just have been associated with sun gear on the second said input shaft, sun gear and planet wheel engagement; Said second planet stent passes the axle center of planet wheel and can relatively rotate; Second planet stent just joins on output shaft, and said first planet stent has just joined planetary ring gear, can rotate around second input shaft; Engagement in planetary ring gear and the planet wheel; Just joined gear on said first input shaft, said gear and planetary ring gear outer gearing, said overrunning clutch is fixed on first input shaft.
The group number of said planet wheel is 2,4,6 or 8 groups;
Said first input shaft pass through driven by motor, motor is connected with TCU real-time control system circuit;
Said first input shaft connects drive by oil hydraulic motor, and oil hydraulic motor is connected with TCU real-time control system circuit;
Described second input shaft is connected with fluid torque converter, and fluid torque converter is connected with TCU real-time control system circuit.
Transmission principle:
Carry out the derivation and the arrangement of simple technical parameter by mockup: make that sun gear angular velocity is W
0, planetary pinion angular velocity is W
1, planetary ring gear 4 angular velocity are W
4, output shaft angular velocity be W
h
The number of teeth that makes sun gear 0 is Z
0, planetary ring gear 4 the number of teeth be Z
4
Then simple function is derived as follows:
Be the linear change that velocity ratio receives gear ring angular velocity, so as long as change the velocity ratio that the acceleration of gear ring just can change speed changer.
For first input shaft, drive first input shaft through motor or oil hydraulic motor and rotate, motor is connected with TCU real-time control system circuit, and the first input shaft driven gear rotates, gear and planetary ring gear outer gearing, planetary ring gear and planet wheel engagement; For second input shaft, the input shaft through fluid torque converter is connected with the flywheel output shaft of motor, and oil hydraulic motor is connected with TCU real-time control system circuit; Second input shaft and motor are connected to second input shaft power are provided; Second input shaft drives the sun gear rotation, and sun gear and planet wheel engagement drive second support; And then driving rotatablely moving of output shaft, output shaft is connected with ordinary gear mechanism.
Like Fig. 3, can know that through MATLAB function emulation experiment the velocity ratio of its speed changer is the function curve of a slyness, that is to say that planetary transmission realized stepless speed change function.First input shaft rotational speed with oil hydraulic motor is the X axle, is the Y axle with the velocity ratio of planetary transmission.4. know by formula: change the rotating speed that first input shaft rotational speed has just changed planetary ring gear 4; 4. the data substitution formula of gear ring 4 is known; Because 4. formula is so that its function size variation of inverse proportion function is to present smooth continuous curve; Then the variation of the velocity ratio of speed changer is that smooth and continuous changes, so realize stepless change.Every curve corresponding the second different input shaft rotational speed change the function curve of formed velocity ratio.Can find out obviously that from Fig. 3 the rotating speed of gear ring 4 can realize the variation of very big velocity ratio in very little change curve.The advantage of the input power that Here it is through two degrees of freedom.
Beneficial effect
The beneficial effect of the utility model is:
(1) adopt gear engagement to replace the metal of transmission to bring the technology of transferring power, realized transmitting torque greatly, the technique effect that bears of bigger load capacity;
(2) because the life-span of traditional metal band type stepless speed variator metal tape is very short and be easy to occur crack conditions, and the utility model adopts gear engagement to be far superior to metal tape, has realized improving the technique effect of the transmission efficiency of speed changer;
(3) the utility model in the life-span of having improved speed changer, avoids occurring the starting skidding owing to adopt Variable Speed Technology; Improve the smoothness and the travelling comfort of car steering, its speed regulating control scheme is more mature and stable in addition;
(4) because the stepless change scheme can more adapt to the part throttle characteristics of motor, so the utility model can be heightened fuel economy;
(5) logical the utility model detects driving situation and the in good time control speed control system of road conditions through TCU, can heighten fuel economy.
Description of drawings
Fig. 1 is the structural representation of planet gear stageless speed variator;
Fig. 2 is a planet gear stageless speed variator transmission scheme schematic representation;
Fig. 3 is the transmission ratio function emulation schematic representation of planet gear stageless speed variator;
Among the figure: 0 sun gear, 1 planet wheel, 2 first input shafts, 3 gears, 4 planetary pinion gear rings, 5 second planet stents, 6 output shafts, 7 first planet stents, 8 second input shafts, 9 overrunning clutchs
Embodiment
Below in conjunction with accompanying drawing the utility model is described in detail.
In Fig. 1, Fig. 2; The planet gear stageless speed variator of the utility model; Comprise a kind of planet gear stageless speed variator; Said planet gear stageless speed variator comprises first input shaft 2, second input shaft 8, overrunning clutch 9, gear 3, planetary pinion gear ring 4, planet wheel 1, first planet stent 7, sun gear 0, second planet stent 5 and output shaft 6, and said planet gear stageless speed variator is realized stepless speed change function through the power input of first input shaft 2 and 8 two degrees of freedom of second input shaft; Said second input shaft 8 and output shaft 6 same straight lines just has been associated with sun gear 0 on said second input shaft 8, sun gear 0 and planet wheel 1 engagement; The axle center of the planet wheel 1 of quantity such as the rotating disk arm of said second planet stent 5 passes and can relatively rotating; Second planet stent 5 has just joined on output shaft 6, and said first planet stent 7 has just joined planetary pinion gear ring 4, can rotate around second input shaft 8; Planetary ring gear 4 through with planet wheel 1 in engagement; Just joined gear 3 on said first input shaft 2, said gear 3 and planetary ring gear 4 outer gearings, said overrunning clutch 9 is fixed on first input shaft 2.
The group number of said planet wheel 1 is 2,4,6 or 8 groups;
Said first input shaft 2 is through driven by motor, and motor is connected with TCU real-time control system circuit;
Said first input shaft 2 connects drive by oil hydraulic motor, and oil hydraulic motor is connected with TCU real-time control system circuit;
Described second input shaft 8 is connected with fluid torque converter, and fluid torque converter is connected with TCU real-time control system circuit.
Embodiment 1
The planet gear stageless speed variator of the utility model; Comprise a kind of planet gear stageless speed variator; Said planet gear stageless speed variator comprises first input shaft 2, second input shaft 8, overrunning clutch 9, gear 3, planetary ring gear 4, planet wheel 1, first planet stent 7, sun gear 0, second planet stent 5 and output shaft 6, and said planet gear stageless speed variator is realized stepless speed change function through the power input of first input shaft 2 and 8 two degrees of freedom of second input shaft; Said second input shaft 8 and output shaft 6 same straight lines just has been associated with sun gear 0 on said second input shaft 8, sun gear 0 and planet wheel 1 engagement; The axle center of the planet wheel 1 of quantity such as the rotating disk arm of said second planet stent 5 passes and can relatively rotating; Second planet stent 5 has just joined on output shaft 6, and said first planet stent 7 has just joined planetary ring gear 4, can rotate around second input shaft 8; Planetary ring gear 4 through with planet wheel 1 in engagement; Just joined gear 3 on said first input shaft 2, said gear 3 and planetary ring gear 4 outer gearings, said overrunning clutch 9 is fixed on first input shaft 2.
The group number of said planet wheel 1 is 2 groups.Said first input shaft 2 pass through driven by motor, motor is connected with TCU real-time control system circuit.Said first input shaft 2 connects drive by oil hydraulic motor, and oil hydraulic motor is connected with TCU real-time control system circuit.Described second input shaft 8 is connected with fluid torque converter, and fluid torque converter is connected with TCU real-time control system circuit.
The planet gear stageless speed variator of the utility model; Comprise a kind of planet gear stageless speed variator; Said planet gear stageless speed variator comprises first input shaft 2, second input shaft 8, overrunning clutch 9, gear 3, planetary ring gear 4, planet wheel 1, first planet stent 7, sun gear 0, second planet stent 5 and output shaft 6, and said planet gear stageless speed variator is realized stepless speed change function through the power input of first input shaft 2 and 8 two degrees of freedom of second input shaft; Said second input shaft 8 and output shaft 6 same straight lines just has been associated with sun gear 0 on said second input shaft 8, sun gear 0 and planet wheel 1 engagement; The axle center of the planet wheel 1 of quantity such as the rotating disk arm of said second planet stent 5 passes and can relatively rotating; Second planet stent 5 has just joined on output shaft 6, and said first planet stent 7 has just joined planetary ring gear 4, can rotate around second input shaft 8; Planetary ring gear 4 through with planet wheel 1 in engagement; Just joined gear 3 on said first input shaft 2, said gear 3 and planetary ring gear 4 outer gearings, said overrunning clutch 9 is fixed on first input shaft 2.
The group number of said planet wheel 1 is 4 groups.Said first input shaft 2 pass through driven by motor, motor is connected with TCU real-time control system circuit.Said first input shaft 2 connects drive by oil hydraulic motor, and oil hydraulic motor is connected with TCU real-time control system circuit.Described second input shaft 8 is connected with fluid torque converter, and fluid torque converter is connected with TCU real-time control system circuit.
The planet gear stageless speed variator of the utility model; Comprise a kind of planet gear stageless speed variator; Said planet gear stageless speed variator comprises first input shaft 2, second input shaft 8, overrunning clutch 9, gear 3, planetary ring gear 4, planet wheel 1, first planet stent 7, sun gear 0, second planet stent 5 and output shaft 6, and said planet gear stageless speed variator is realized stepless speed change function through the power input of first input shaft 2 and 8 two degrees of freedom of second input shaft; Said second input shaft 8 and output shaft 6 same straight lines just has been associated with sun gear 0 on said second input shaft 8, sun gear 0 and planet wheel 1 engagement; The axle center of the planet wheel 1 of quantity such as the rotating disk arm of said second planet stent 5 passes and can relatively rotating; Second planet stent 5 has just joined on output shaft 6, and said first planet stent 7 has just joined planetary ring gear 4, can rotate around second input shaft 8; Planetary ring gear 4 through with planet wheel 1 in engagement; Just joined gear 3 on said first input shaft 2, said gear 3 and planetary ring gear 4 outer gearings, said overrunning clutch 9 is fixed on first input shaft 2.
The group number of said planet wheel 1 is 6 groups.Said first input shaft 2 pass through driven by motor, motor is connected with TCU real-time control system circuit.Said first input shaft 2 connects drive by oil hydraulic motor, and oil hydraulic motor is connected with TCU real-time control system circuit.Described second input shaft 8 is connected with fluid torque converter, and fluid torque converter is connected with TCU real-time control system circuit.
The planet gear stageless speed variator of the utility model; Comprise a kind of planet gear stageless speed variator; Said planet gear stageless speed variator comprises first input shaft 2, second input shaft 8, overrunning clutch 9, gear 3, planetary ring gear 4, planet wheel 1, first planet stent 7, sun gear 0, second planet stent 5 and output shaft 6, and said planet gear stageless speed variator is realized stepless speed change function through the power input of first input shaft 2 and 8 two degrees of freedom of second input shaft; Said second input shaft 8 and output shaft 6 same straight lines just has been associated with sun gear 0 on said second input shaft 8, sun gear 0 and planet wheel 1 engagement; The axle center of the planet wheel 1 of quantity such as the rotating disk arm of said second planet stent 5 passes and can relatively rotating; Second planet stent 5 has just joined on output shaft 6, and said first planet stent 7 has just joined planetary ring gear 4, can rotate around second input shaft 8; Planetary ring gear 4 through with planet wheel 1 in engagement; Just joined gear 3 on said first input shaft 2, said gear 3 and planetary ring gear 4 outer gearings, said overrunning clutch 9 is fixed on first input shaft 2.
The group number of said planet wheel 1 is 8 groups.Said first input shaft 2 pass through driven by motor, motor is connected with TCU real-time control system circuit.Said first input shaft 2 connects drive by oil hydraulic motor, and oil hydraulic motor is connected with TCU real-time control system circuit.Described second input shaft 8 is connected with fluid torque converter, and fluid torque converter is connected with TCU real-time control system circuit.
When using the utility model, as long as the rotating speed of control first input shaft 2 just can be realized the stepless speed change function of speed changer.When second input shaft, 8 power are imported; If planetary ring gear 4 is not worked; Because the effect gear ring of overrunning clutch is staticly not relatively rotate, this moment, speed changer can not realized stepless speed change function, if planetary ring gear 4 work; Planetary pinion 1 has also just been realized stepless speed change function through with the outer gearing of sun gear 0, make the velocity ratio of output shaft 6 outputs become the variation of continuous functions curve with the relation of the interior engagement of planetary ring gear 4.
The utility model is mainly realized the stepless change effect of speed changer through the input of two degrees of freedom, can transmit very big moment of torsion and very big change in torque, and very high transmission efficiency is higher, and has improved the life-span of stepless speed variator through gear meshing.
Claims (5)
1. planet gear stageless speed variator; It is characterized in that; Said planet gear stageless speed variator comprises first input shaft (2), second input shaft (8), overrunning clutch (9), gear (3), planetary ring gear (4), planet wheel (1), first planet stent (7), sun gear (0), second planet stent (5) and output shaft (6), and said planet gear stageless speed variator is realized stepless speed change function through the power input of first input shaft (2) and (8) two degrees of freedom of second input shaft; Said second input shaft (8) and the same straight line of output shaft (6); Just be associated with sun gear (0) on said second input shaft (8); The engagement of sun gear (0) and planet wheel (1), the rotating disk arm of said second planet stent (5) pass etc. quantity planet wheel (1) the axle center and can relatively rotate, second planet stent (5) has just joined on output shaft (6); Said first planet stent (7) has just joined planetary ring gear (4); Can rotate around second input shaft (8), planetary ring gear (4) is gone up and is just joined gear (3) with the interior engagement of planet wheel (1), said first input shaft (2); Said gear (3) and planetary ring gear (4) outer gearing, said overrunning clutch 9 is fixed on first input shaft (2).
2. a kind of planet gear stageless speed variator according to claim 1 is characterized in that, the group number of said planet wheel (1) is 2,4,6 or 8 groups.
3. a kind of planet gear stageless speed variator according to claim 1 and 2 is characterized in that, said first input shaft (2) pass through driven by motor, motor is connected with TCU real-time control system circuit.
4. a kind of planet gear stageless speed variator according to claim 1 and 2 is characterized in that, said first input shaft (2) connects drive by oil hydraulic motor, and oil hydraulic motor is connected with TCU real-time control system circuit.
5. a kind of planet gear stageless speed variator according to claim 1 and 2 is characterized in that, described second input shaft (8) is connected with fluid torque converter, and fluid torque converter is connected with TCU real-time control system circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202839037U CN202188076U (en) | 2011-08-05 | 2011-08-05 | Planetary gear continuously variable transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202839037U CN202188076U (en) | 2011-08-05 | 2011-08-05 | Planetary gear continuously variable transmission |
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| Publication Number | Publication Date |
|---|---|
| CN202188076U true CN202188076U (en) | 2012-04-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202839037U Expired - Fee Related CN202188076U (en) | 2011-08-05 | 2011-08-05 | Planetary gear continuously variable transmission |
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| CN (1) | CN202188076U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989791A (en) * | 2015-07-02 | 2015-10-21 | 太原重工股份有限公司 | Planetary mechanism and planetary reducer |
| CN107208753A (en) * | 2015-01-16 | 2017-09-26 | 吴志强 | A kind of buncher |
| CN108006203A (en) * | 2017-12-29 | 2018-05-08 | 江苏方阔航空科技有限公司 | A kind of electric control stepless big payload helicopter variable speed gearbox |
| CN109915542A (en) * | 2019-04-02 | 2019-06-21 | 闫德林 | Applied to the Double-power transmission control device on mining equiment |
| CN110043615A (en) * | 2018-01-15 | 2019-07-23 | 怀化沃普环保科技有限公司 | Multi-stage planetary gear coaxial type planetary transmission |
-
2011
- 2011-08-05 CN CN2011202839037U patent/CN202188076U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107208753A (en) * | 2015-01-16 | 2017-09-26 | 吴志强 | A kind of buncher |
| CN107208753B (en) * | 2015-01-16 | 2021-01-15 | 广州市无级制动科技有限责任公司 | Stepless speed variator |
| CN104989791A (en) * | 2015-07-02 | 2015-10-21 | 太原重工股份有限公司 | Planetary mechanism and planetary reducer |
| CN104989791B (en) * | 2015-07-02 | 2018-06-01 | 太原重工股份有限公司 | Planetary mechanism and planetary reduction gear |
| CN108006203A (en) * | 2017-12-29 | 2018-05-08 | 江苏方阔航空科技有限公司 | A kind of electric control stepless big payload helicopter variable speed gearbox |
| CN110043615A (en) * | 2018-01-15 | 2019-07-23 | 怀化沃普环保科技有限公司 | Multi-stage planetary gear coaxial type planetary transmission |
| CN109915542A (en) * | 2019-04-02 | 2019-06-21 | 闫德林 | Applied to the Double-power transmission control device on mining equiment |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120411 Termination date: 20120805 |