CN101988563B - Differential coupling continuously-variable automatic transmission - Google Patents
Differential coupling continuously-variable automatic transmission Download PDFInfo
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- CN101988563B CN101988563B CN 201010533464 CN201010533464A CN101988563B CN 101988563 B CN101988563 B CN 101988563B CN 201010533464 CN201010533464 CN 201010533464 CN 201010533464 A CN201010533464 A CN 201010533464A CN 101988563 B CN101988563 B CN 101988563B
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Abstract
The invention relates to the continuously-variable transmission technical field, in particular to a differential coupling continuously-variable automatic transmission which comprises an input shaft, a variable speed gear and an output shaft, wherein the variable speed gear comprises a planet support, a planet bevel gear arranged on the planet support, and a first sun gear and a second sun gear arranged at two sides of the planet bevel gear respectively; the planet bevel gear is meshed with the first sun gear and the second sun gear respectively; the input shaft is connected with the first sun gear, and the output shaft is connected with the second sun gear; and the side of the second sun gear is equipped with a coupler which comprises a first coupling gear and a second coupling gear, the first coupling gear is connected with the planet support, and the second coupling gear is connected with the output shaft. The differential coupling continuously-variable automatic transmission has the advantages of simple structure, small volume, low cost, strong practicability and being capable of automatically adjusting the rotating speed ratio between the input shaft and the output shaft according to the practical operating condition.
Description
Technical field
The present invention relates to the stepless speed variator technical field, refer in particular to a kind of differential coupling stepless automatic speed changer.
Background technique
Speed changer mainly is divided into manual transmission and automatic transmission according to gear shift mode, can be divided into step change transmission and stepless speed variator according to number of steps of speeds.
Traditional manual transmission is widely used in various variable transmission mechanisms already, manual transmission generally all needs engagement clutch to use together, in service at variable transmission mechanism, need to cut off the variable speed operation that to realize speed changer with binding operation to clutch, for example in the shift process of automobile, the driver cuts off and is bad in conjunction with cooperating with the action of engage a gear on opportunity of clutch, causes easily engine misses, perhaps engage a gear is unstable, causes the heavy wear of clutch.
Automatic transmission can make automobile obtain good power character and fuel economy according to engine load and vehicle speed condition auto-changing velocity ratio, and reduces the exhaust emission of motor.
Take the gearbox of automobile as example, the automatic transmission of prior art is according to car speed, the factor such as engine speed, living load is carried out the lifting gear automatically, do not need to be shifted gears by driver's operated clutch, automatic transmission is complicated more a lot of than manual transmission, have a lot of aspects not identical, but very large difference is the control aspect.Manual transmission is by the pilot control gear, and shift-up or downshift are by manual operation, and automatic transmission is automatically to control gear by machine, and the conversion gear is undertaken by hydraulic control device.The SC sigmal control lifting shelves that hydraulic control device is sent here according to closure (throttle) aperture and transmission output shaft.Change according to throttle opening, the modulating valve in the hydraulic control device produces the hydraulic pressure that is directly proportional with amount under the accelerator pedal, and this hydraulic pressure is added to hydraulic control device as the throttle opening signal; There is in addition the governor pressure valve that is assemblied on the output shaft can produce the hydraulic pressure that is directly proportional with rotating speed (speed of a motor vehicle), is added to hydraulic control device as vehicle speed signal.Therefore, throttle opening signal and vehicle speed signal are just arranged, hydraulic control device is regulated speed changer oil mass (gear) automatically according to these two signals, thus control gearshift opportunity.Driver's to put one's foot down (gas pedal) in car steering, the control throttle opening is the interior hydraulic control device of energy automatic control of transmission just, hydraulic control device can utilize fluid power to remove to control clutch and the break of epicyclic gear system, to change planetary drive state, if electronic automatic transmission will increase solenoid valve on the basis of the above.ECU (Electrical Control Unit) is by electromagnetic valve automatic transmission working procedure.The ECU input circlult is accepted the signal of sensor and other device inputs, and signal is carried out filtration treatment and amplification, then converts the work that electrical signal drives controlled solenoid valve to.Yet this kind structural volume is large, mechanism is complicated, Heavy Weight, maintenance expenses high and cause the defective of such speed changer particularly evident.
Summary of the invention
The technical problem to be solved in the present invention provide a kind of simple in structure, volume is little, with low cost, and can automatically regulate according to practical working situation the differential coupling stepless automatic speed changer of the rotating ratio of input shaft and output shaft.
In order to solve the problems of the technologies described above, the present invention adopts following technological scheme: differential coupling stepless automatic speed changer, comprise input shaft, gear and output shaft, described gear comprises planet stent, be arranged at the bevel planet gear of planet stent, be arranged at respectively the first sun gear and second sun gear of bevel planet gear both sides, bevel planet gear is connected with a joggle with the first sun gear and the second sun gear respectively, input shaft is connected with the first sun gear, output shaft is connected with the second sun gear, the side of described the second sun gear is provided with coupler, this coupler comprises the first coupling wheel and the second coupling wheel, the first coupling wheel is connected with planet stent, and the second coupling wheel is connected with output shaft.
Wherein, described planet stent is provided with the bevel planet gear axle, and the bevel planet gear pivot bush unit is in this bevel planet gear axle.
Preferably, described planet stent offers cavity, and the number of bevel planet gear axle is four, and an end of four bevel planet gear axles is embedded at described cavity, the number of described bevel planet gear is four, and four bevel planet gears are socketed on respectively four bevel planet gear axles.
Another is preferred, described planet stent offers cavity, and the number of bevel planet gear axle is two, and an end of two bevel planet gear axles is embedded at described cavity, the number of described bevel planet gear is two, and two bevel planet gears are socketed on respectively two bevel planet gear axles.
Wherein, described the first coupling wheel middle part offers the axis hole that passes for output shaft, and the second sun gear and the second coupling wheel are arranged at respectively the both sides of the first coupling wheel.
One is preferred again, and described the first coupling wheel middle part offers the axis hole that passes for output shaft, and the second sun gear and the second coupling wheel all are arranged at the left side of the first coupling wheel, and the second coupling wheel is arranged at the right side of the second sun gear.
Wherein, described coupler is magnetic coupling or fluid coupling.
Wherein, described output shaft connects for splined or flat key with the second coupling wheel.
Beneficial effect of the present invention is: the invention provides a kind of differential coupling stepless automatic speed changer, comprise input shaft, gear and output shaft, described gear comprises planet stent, be arranged at the bevel planet gear of planet stent, be arranged at respectively the first sun gear and second sun gear of bevel planet gear both sides, bevel planet gear is connected with a joggle with the first sun gear and the second sun gear respectively, input shaft is connected with the first sun gear, output shaft is connected with the second sun gear, the side of described the second sun gear is provided with coupler, this coupler comprises the first coupling wheel and the second coupling wheel, the first coupling wheel is connected with planet stent, and the second coupling wheel is connected with output shaft.Differential coupling stepless automatic speed changer of the present invention is in speed-change process, when practical working situation causes that the moment of torsion of output shaft reduces, the first coupling wheel of coupler and the speed discrepancy between the second coupling wheel reduce gradually, and namely the rotating ratio of input shaft and output shaft reduces gradually; When practical working situation causes that the moment of torsion of output shaft becomes large, the first coupling wheel of coupler and the speed discrepancy between the second coupling wheel increase gradually, the rotating ratio that is input shaft and output shaft increases gradually, thereby realize its automatic stepless speed change function, the present invention not only simple in structure, volume is little, with low cost, and can automatically regulate according to practical working situation the rotating ratio of input shaft and output shaft, practical.
Description of drawings
Fig. 1 is the perspective view of the embodiment of the invention one.
Fig. 2 is the stereochemical structure decomposing schematic representation of the embodiment of the invention one.
Fig. 3 is the cross-sectional view of the embodiment of the invention one.
Fig. 4 is the perspective view of the embodiment of the invention two.
Fig. 5 is the cross-sectional view of the embodiment of the invention three.
Embodiment
For the ease of those skilled in the art's understanding, the present invention is further illustrated below in conjunction with embodiment and accompanying drawing, and the content that mode of execution is mentioned not is limitation of the invention.
Be the embodiment one of differential coupling stepless automatic speed changer of the present invention as shown in Figure 1 to Figure 3, comprise input shaft 1, gear and output shaft 2, described gear comprises planet stent 3, be arranged at the bevel planet gear 4 of planet stent 3, be arranged at respectively the first sun gear 5 and second sun gear 6 of bevel planet gear 4 both sides, bevel planet gear 4 is connected with a joggle with the first sun gear 5 and the second sun gear 6 respectively, input shaft 1 is connected with the first sun gear 5, output shaft 2 is connected with the second sun gear 6, the side of described the second sun gear 6 is provided with coupler, this coupler comprises the first coupling wheel the 7 and second coupling wheel 8, the first coupling wheel 7 is connected with planet stent 3, and the second coupling is taken turns 8 and is connected with output shaft 2.In the present embodiment, the second sun gear 6 and described output shaft 2 are one-body molded.
In the course of the work, the first sun gear 5 rotates with input shaft 1, output shaft 2 is when rotation at the early-stage, the moment of torsion that 2 rotations of driver output axle need is larger, at this moment, speed discrepancy between the first coupling wheel the 7 and second coupling wheel 8 of coupler is larger, the first sun gear 5 drives bevel planet gear 4 and moves in a circle, the first coupling this moment wheel 7 and planet stent 3 rotate under the effect of bevel planet gear 4 comparatively fast, the second sun gear 6 rotates slower, the rotating speed of the output shaft 2 that is connected with the second sun gear 6 with automatic reduction, thus realize automatically tuning up the rotating ratio of input shaft 1 and output shaft 2.
The first sun gear 5 is rotated further under the effect of input shaft 1, when the moment of torsion of driver output axle 2 rotation needs reduces, speed discrepancy between the first coupling wheel the 7 and second coupling wheel 8 of coupler diminishes gradually, the rotating speed of i.e. the first coupling wheel 7 and planet stent 3 slows down gradually, the rotating speed of the second coupling wheel 8 is accelerated gradually, in the constant situation of the rotating speed of input shaft 1 and the first sun gear 5, the rotating speed of the second sun gear 6 is accelerated gradually, rotating speed with the output shaft 2 automatically accelerating gradually to be connected with the second sun gear 6, thereby realize automatically progressively turning down the rotating ratio of input shaft 1 and output shaft 2, and then realize the automatic speed changing function of described differential coupling stepless automatic speed changer; Because in speed-change process, the speed discrepancy between the first coupling of coupler wheel the 7 and second coupling wheel 8 is to reduce gradually, and the reducing of its speed discrepancy is changed to stepless variation, so the speed change of described differential coupling stepless automatic speed changer is stepless change.
In above-mentioned speed-change process, when practical working situation caused that the moment of torsion of output shaft 2 reduces, the speed discrepancy between the first coupling of coupler wheel the 7 and second coupling wheel 8 reduced gradually, and namely input shaft 1 reduces gradually with the rotating ratio of output shaft 2; When practical working situation causes that the moment of torsion of output shaft 2 becomes large, speed discrepancy between the first coupling wheel the 7 and second coupling wheel 8 of coupler increases gradually, the rotating ratio that is input shaft 1 and output shaft 2 increases gradually, thereby realize the automatic stepless speed change function, the present invention not only simple in structure, volume is little, with low cost, and can automatically regulate according to practical working situation the rotating ratio of input shaft 1 and output shaft 2, practical.
The described planet stent 3 of present embodiment is provided with bevel planet gear axle 9, and bevel planet gear 4 pivot bush units are in this bevel planet gear axle 9.Concrete described planet stent 3 offers cavity, the number of bevel planet gear axle 9 is four, one end of four bevel planet gear axles 9 is embedded at described cavity, and the number of described bevel planet gear 4 is four, and four bevel planet gears 4 are socketed on respectively four bevel planet gear axles 9.
When the rotating speed of the second sun gear 6 rotations is lower than the rotating speed of the first sun gear 5, the bevel planet gear 4 that is connected with a joggle with the first sun gear 5 and the second sun gear 6 rotates, and drive bevel planet gear axle 9 and planet stent 3 rotations, so that the moment of torsion of input shaft 1 is passed to the first coupling wheel the 7 and/or second coupling wheel 8 with the kind of drive of differential mechanism, by coupler moment of torsion is passed to output shaft 2.
Described first coupling of present embodiment is taken turns 7 middle parts and is offered the axis hole that passes for output shaft 2, and the second sun gear 6 and the second coupling wheel 8 are arranged at respectively the both sides of the first coupling wheel 7.Preferred implementation is, described coupler is magnetic coupling, and the speed discrepancy of the first coupling wheel the 7 and second coupling wheel 8 can change according to the level of torque of output shaft 2, and passes to output shaft 2 by the second sun gear 6 and/or the second coupling wheel 8.Certainly, described coupler can also be fluid coupling, equally also can reach above-mentioned technique effect.
The described output shaft 2 of present embodiment and the second coupling wheel 8 are splined, and splined can improve output shaft 2 and the second coupling wheel 8 coaxial precision that are fixedly connected with greatly, and practicability is stronger.Can certainly connect for flat key.
Be illustrated in figure 4 as the embodiment two of differential coupling stepless automatic speed changer of the present invention, be with the difference of above-described embodiment one: described planet stent 3 offers cavity, the number of bevel planet gear axle 9 is two, one end of two bevel planet gear axles 9 is embedded at described cavity, the number of described bevel planet gear 4 is two, and two bevel planet gears 4 are socketed on respectively two bevel planet gear axles 9.Equally also can realize its technique effect, structure is simpler, is applicable to the less workplace of transmitting torque.
Be illustrated in figure 5 as the embodiment three of differential coupling stepless automatic speed changer of the present invention, be with the difference of above-described embodiment one: described the first coupling is taken turns 7 middle parts and is offered the axis hole that passes for output shaft 2, the second sun gear 6 and the second coupling wheel 8 all are arranged at the left side of the first coupling wheel 7, and the second coupling wheel 8 is arranged at the right side of the second sun gear 6.In the present embodiment, the second sun gear 6 and the second coupling wheel 8 all can be assembled with output shaft 2 in advance, reduce the assembling difficulty of differential coupling stepless automatic speed changer of the present invention, enhance productivity.
What need supplementary notes is, the number of bevel planet gear axle 9 and bevel planet gear 4 can also be six or eight simultaneously, bevel planet gear axle 9 is evenly arranged in planet stent 3, each bevel planet gear axle 9 is a sheathed bevel planet gear 4 all, so that transmit larger moment of torsion, be applicable to the larger workplace of transmitting torque.
Above-described embodiment is three kinds in the better implementation of the present invention, and in addition, the present invention can also realize that any apparent replacement is all within protection scope of the present invention without departing from the inventive concept of the premise by alternate manner.
Claims (7)
1. differential coupling stepless automatic speed changer, comprise input shaft (1), gear and output shaft (2), described gear comprises planet stent (3), be arranged at the bevel planet gear (4) of planet stent (3), be arranged at respectively the first sun gear (5) and second sun gear (6) of bevel planet gear (4) both sides, bevel planet gear (4) is connected with a joggle with the first sun gear (5) and the second sun gear (6) respectively, input shaft (1) is connected with the first sun gear (5), output shaft (2) is connected with the second sun gear (6), it is characterized in that: the side of described the second sun gear (6) is provided with coupler, this coupler comprises the first coupling wheel (7) and the second coupling wheel (8), the first coupling wheel (7) is connected with planet stent (3), and the second coupling wheel (8) is connected with output shaft (2);
Described the first coupling wheel (7) middle part offers the axis hole that passes for output shaft (2), and the second sun gear (6) and the second coupling wheel (8) are arranged at respectively the both sides of the first coupling wheel (7).
2. differential coupling stepless automatic speed changer according to claim 1, it is characterized in that: described planet stent (3) is provided with bevel planet gear axle (9), and bevel planet gear (4) pivot bush unit is in this bevel planet gear axle (9).
3. differential coupling stepless automatic speed changer according to claim 2, it is characterized in that: described planet stent (3) offers cavity, the number of bevel planet gear axle (9) is four, one end of four bevel planet gear axles (9) is embedded at described cavity, the number of described bevel planet gear (4) is four, and four bevel planet gears (4) are socketed on respectively four bevel planet gear axles (9).
4. differential coupling stepless automatic speed changer according to claim 2, it is characterized in that: described planet stent (3) offers cavity, the number of bevel planet gear axle (9) is two, one end of two bevel planet gear axles (9) is embedded at described cavity, the number of described bevel planet gear (4) is two, and two bevel planet gears (4) are socketed on respectively two bevel planet gear axles (9).
5. differential coupling stepless automatic speed changer according to claim 1, it is characterized in that: described coupler is magnetic coupling or fluid coupling.
6. differential coupling stepless automatic speed changer according to claim 1 is characterized in that: described output shaft (2) connects for splined or flat key with the second coupling wheel (8).
7. differential coupling stepless automatic speed changer, comprise input shaft (1), gear and output shaft (2), described gear comprises planet stent (3), be arranged at the bevel planet gear (4) of planet stent (3), be arranged at respectively the first sun gear (5) and second sun gear (6) of bevel planet gear (4) both sides, bevel planet gear (4) is connected with a joggle with the first sun gear (5) and the second sun gear (6) respectively, input shaft (1) is connected with the first sun gear (5), output shaft (2) is connected with the second sun gear (6), it is characterized in that: the side of described the second sun gear (6) is provided with coupler, this coupler comprises the first coupling wheel (7) and the second coupling wheel (8), the first coupling wheel (7) is connected with planet stent (3), and the second coupling wheel (8) is connected with output shaft (2);
Described the first coupling wheel (7) middle part offers the axis hole that passes for output shaft (2), the second sun gear (6) and the second coupling wheel (8) all are arranged at the left side of the first coupling wheel (7), and the second coupling wheel (8) is arranged at the right side of the second sun gear (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010533464 CN101988563B (en) | 2010-11-05 | 2010-11-05 | Differential coupling continuously-variable automatic transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010533464 CN101988563B (en) | 2010-11-05 | 2010-11-05 | Differential coupling continuously-variable automatic transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101988563A CN101988563A (en) | 2011-03-23 |
| CN101988563B true CN101988563B (en) | 2013-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010533464 Expired - Fee Related CN101988563B (en) | 2010-11-05 | 2010-11-05 | Differential coupling continuously-variable automatic transmission |
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| CN (1) | CN101988563B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107830122A (en) * | 2017-10-23 | 2018-03-23 | 成峰消防设备（上海）有限公司 | A kind of planetary gear that any gear ratio can be achieved and its application |
| CN109532107B (en) * | 2018-12-29 | 2020-06-30 | 佛山市达肯包装机械有限公司 | Valve paper position adjusting mechanism of paper bag valve port inserting device |
| CN109605832B (en) * | 2018-12-29 | 2020-11-13 | 佛山市达肯包装机械有限公司 | Paper bag valve port insertion device |
| CN113819004A (en) * | 2021-11-09 | 2021-12-21 | 陈根 | Equipment capable of adjusting rotating speed of generator according to wind power for offshore wind power generation |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3308685A (en) * | 1965-01-13 | 1967-03-14 | Dana Corp | Differential gearing device having a self-contained clutch therein |
| CN1871461A (en) * | 2003-10-20 | 2006-11-29 | Gkn动力传动国际有限公司 | Differential axes of coordinates for a differential gear |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6146304A (en) * | 1998-12-22 | 2000-11-14 | Caterpillar Inc. | Vehicle differential |
| US6527661B2 (en) * | 2000-05-12 | 2003-03-04 | Auburn Gear, Inc. | Limited slip differential having magnetorheological fluid brake |
| CN201858327U (en) * | 2010-11-05 | 2011-06-08 | 东莞市明慧管理咨询有限公司 | Differential coupling stepless automatic speed changer |
-
2010
- 2010-11-05 CN CN 201010533464 patent/CN101988563B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3308685A (en) * | 1965-01-13 | 1967-03-14 | Dana Corp | Differential gearing device having a self-contained clutch therein |
| CN1871461A (en) * | 2003-10-20 | 2006-11-29 | Gkn动力传动国际有限公司 | Differential axes of coordinates for a differential gear |
Non-Patent Citations (1)
| Title |
|---|
| JP特表2002-533627A 2002.10.08 |
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| CN101988563A (en) | 2011-03-23 |
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Granted publication date: 20130313 Termination date: 20191105 |