CN103322145A - Planetary continuous variable transmission - Google Patents
Planetary continuous variable transmission Download PDFInfo
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- CN103322145A CN103322145A CN 201210086260 CN201210086260A CN103322145A CN 103322145 A CN103322145 A CN 103322145A CN 201210086260 CN201210086260 CN 201210086260 CN 201210086260 A CN201210086260 A CN 201210086260A CN 103322145 A CN103322145 A CN 103322145A
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- speed variator
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- single planetary
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Abstract
The invention provides a planetary continuous variable transmission, which is characterized by in-line arrangement of a three-gear single-row planetary gear transmission device and a continuous variable transmission device and is provided with two forward gears and a reverse gear. When a vehicle runs at low speed and requires higher driving performance, a forward low speed gear of the three-gear single-row planetary gear transmission device is matched with the continuous variable transmission device for use; when the vehicle runs at high speed and requires higher traveling performance, a forward high speed gear of the three-gear single-row planetary gear transmission device is matched with the continuous variable transmission device for use; when the vehicle is backed, the reverse gear of the three-gear single-row planetary gear transmission device is matched with the continuous variable transmission device for use. Therefore, the transmission can meet the requirement of the vehicle better.
Description
Technical field
The present invention relates to a kind of speed changer, be particularly useful for the single planetary speed variator of third gear of vehicle and the planetary stageless speed variator of CVT stepless speed changes devices configuration in upright arrangement.
Background technique
The development of CVT (Continuous Variable Transmission) stepless speed variator technology has had the history in more than 100 year.
At present CVT stepless speed variator commonly used is to adopt driving belt (steel band or chain) and the variable driving and driven wheels of the working diameter transferring power that matches.The system of stepless speed variator mainly comprises the initiatively basic elements of character such as wheels, driven wheels, driving belt and oil hydraulic pump.Initiatively wheels and driven wheels all are comprised of movable plate and fixed tray, and movable plate and fixed tray all are cone structures, and their conical surface forms the V-type groove to be come and the engagement of V-type driving belt, utilizes the frictional force transferring power of engagement.Power at first is delivered to the active wheels of CVT, then is delivered to driven wheels by the V-type driving belt, passes to wheel finally by retarder, differential mechanism and drives automobile.Move axially to change the radius of clean-up of driving wheel, the follower conical surface and the engagement of V-type driving belt during work by the movable plate of active wheels and driven wheels, thereby change velocity ratio.
For satisfying the requirement of car load power character, Economy, require CVT that rational speed ratio and ratio coverage should be arranged.Present CVT is the requirement that adapts to rational speed ratio and ratio coverage of the design by driving and driven wheels.Owing to only reaching the requirement of rational speed ratio and ratio coverage by the design of driving and driven wheels, driving and driven wheels volume is aobvious large.Add as realizing reverse gear, a cover reverse gearset must be arranged, cause whole speed changer volume large, weight is large.
Summary of the invention
From the requirement of car load power character, Economy, vehicle should have preferably driven nature when low speed, during high speed preferably travelling should be arranged.If a cover gear is arranged when reverse gear is provided, at least two forward gearss can be provided, cooperate the optimization of CVT stepless speed changes devices with regard to substantially satisfying vehicle preferably driven nature to be arranged when low speed, the preferably requirement of travelling is arranged during high speed, satisfy simultaneously the requirement that whole speed change gear volume is little, lightweight, the gear ratio coverage area is large.
The present invention provides a kind of the have single planetary speed variator of third gear of two forward gearss and a reverse gear and the speed changer of CVT stepless speed changes devices configuration in upright arrangement.When vehicle when low speed need to have preferably driven nature, advance bottom gear and CVT stepless speed changes devices coupling of the single planetary speed variator of third gear used; When vehicle need to have preferably travelling during in high speed, advance top gear and CVT stepless speed changes devices coupling of the single planetary speed variator of third gear used, and the single planetary speed variator speed ratio of third gear this moment is 1: 1; When vehicle need to be moveed backward, the single planetary speed variator reverse gear of third gear and CVT stepless speed changes devices coupling were used.
The configuration in upright arrangement of the single planetary speed variator of third gear and CVT stepless speed changes devices.On demand, the single planetary speed variator of third gear both can be configured in CVT stepless speed changes devices input shaft end by array, also can be configured in CVT stepless speed changes devices output shaft end by array.
The invention has the beneficial effects as follows owing to driving and driven wheels behind the single planetary speed variator of employing third gear, it is less that driving belts etc. can be done, both can satisfy the requirement of car load power character, Economy, vehicle has preferably driven nature when low speed, preferably travelling is arranged during high speed, also can satisfy the requirement that the speed change gear volume is little, lightweight, the gear ratio coverage area is large.
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the allocation plan that the single planetary speed variator array of third gear is configured in CVT stepless speed changes devices output shaft end.
Fig. 2 is the allocation plan that the single planetary speed variator array of third gear is configured in CVT stepless speed changes devices output shaft end.Before the CVT input shaft with a pair of tumbler gear.
Fig. 3 is the allocation plan that the single planetary speed variator array of third gear is configured in CVT stepless speed changes devices output shaft end.Between the single planetary speed variator of third gear and main reducing gear, a pair of tumbler gear is arranged.
Fig. 4 is the allocation plan that the single planetary speed variator array of third gear is configured in CVT stepless speed changes devices input shaft end.
Fig. 5 is the allocation plan that the single planetary speed variator array of third gear is configured in CVT stepless speed changes devices input shaft end.Before the single planetary speed variator of third gear with a pair of tumbler gear.
Fig. 6 is the allocation plan that the single planetary speed variator array of third gear is configured in CVT stepless speed changes devices input shaft end.A pair of tumbler gear is arranged between CVT stepless speed changes devices and main reducing gear.
Fig. 7 is the enlarged view of the single planetary speed variator of third gear among Fig. 1-6.
Fig. 8 is another way of realization of the single planetary speed variator of Fig. 7 third gear.
1. sun gears among the figure; 2. planet wheel; 3. planetary wheel carrier; 4. gear ring; 5. output shaft; 6. clutch; 7. clutch; 8. clutch; 9. clutch; 10. wheels initiatively; 11. driving belt; 12. driven wheels; 13. the main little tooth that slows down; 14. main deceleration canine tooth; 15. differential mechanism; 16. gear; 17. gear; 18. tooth hub; 19. gear ring; 20. tooth hub; 21. tooth hub; 22. tooth hub; 23. tooth hub; 24. gear ring; 25. fixing tooth hub.
Be the single planetary speed variator schematic diagram of third gear in the empty frame in side among the figure, be the differential mechanism schematic diagram in the empty frame of circle, CVT stepless speed changes devices schematic diagram forms (its hydraulic pressure and control system are not shown) by active wheels 10, driving belt 11 and driven wheels 12, main reducing gear is comprised of the main little tooth 13 of deceleration and main deceleration canine tooth 14, and a pair of tumbler gear refers to gear 16 and gear 17.
Embodiment
The single planetary speed variator working principle of third gear shown in Fig. 1-7 is: power is by sun gear 1 input, by output shaft 5 outputs.By controlling 4 friction elements-- clutch 6,7,8,9, realize each gear.Neutral gear: 4 clutches are all separated state.Bottom gear advances: clutch 6,8 is jointing state, and clutch 7,9 is separated state.Top gear advances: clutch 6,7 is jointing state, and clutch 8,9 is separated state, and this moment, speed ratio was 1: 1.Reverse gear: clutch 7,9 is jointing state, and clutch 6,8 is separated state.
The stepless speed changes devices of CVT shown in figure working principle is: initiatively wheels 10 and driven wheels 12 all are comprised of movable plate and fixed tray, hydraulic system is by adjusting the pressure to movable plate, make V-type groove and the V-type driving belt 11 of their conical surface formation be in all the time impaction state, utilize the frictional force that compresses to pass through the transmission of power of 11 actives of driving belt wheels 10 to driven wheels 12 rear outputs.Movable plate by active wheels 10 and driven wheels 12 during work moves axially to change initiatively wheels 10, the conical surface of driven wheels 12 and the radius of clean-up of V-type driving belt 11, thereby changes velocity ratio.Because this change is continuous, so be called stepless change.
In the embodiment shown in fig. 1, the single planetary speed variator of third gear is positioned at CVT stepless speed changes devices output shaft end.Power source is inputted power through clutch or fluid torque converter by active wheels 10, by driving belt 11 transmission of power of active wheels 10 is arrived driven wheels 12, driven wheels 12 and 1 coaxial connection of sun gear, power is through the single planetary speed variator of sun gear 1 input third gear, output shaft 5 slows down little 13 coaxial connections of tooth with main, export the main little tooth 13 that slows down to by output shaft 5, by main little tooth 13, the main deceleration canine tooth 14 of slowing down, reach driving wheel through differential mechanism 15.Sometimes, for adapting to the arrangement needs, output shaft 5 slows down with the master, and available transmission shaft is connected between the little tooth 13.
Embodiment shown in Figure 2 is on embodiment basis shown in Figure 1, increases a pair of tumbler gear 16 and gear 17 before the CVT stepless speed changes devices.
Embodiment shown in Figure 3 is on embodiment basis shown in Figure 1, increases a pair of tumbler gear 16 and gear 17 between the single planetary speed variator of third gear and main reducing gear.Wherein tumbler gear 16 becomes device 5 coaxial connections of output shaft with the single planetary pinion of third gear, and tumbler gear 17 slows down little 13 coaxial connections of tooth with main.
In the embodiment shown in fig. 4, the single planetary speed variator of third gear is positioned at CVT stepless speed changes devices input shaft end.Power source is inputted power through clutch or fluid torque converter by sun gear 1, output shaft 5 and coaxial connection of CVT stepless speed changes devices input shaft, export CVT stepless speed changes devices input shaft to by output shaft 5, reach CVT stepless speed changes devices output shaft by active wheels 10, driving belt 11 and driven wheels 12, the main little tooth 13 and driven 12 coaxial connections of wheels of slowing down, by main little tooth 13, the main deceleration canine tooth 14 of slowing down, through differential mechanism 15 power is reached driving wheel.
Embodiment shown in Figure 5 is on embodiment basis shown in Figure 4, increases a pair of tumbler gear 16 and gear 17 before the CVT stepless speed changes devices.
Embodiment shown in Figure 6 is on embodiment basis shown in Figure 4, increases a pair of tumbler gear 16 and gear 17 between CVT stepless speed changes devices and main reducing gear.Wherein tumbler gear 16 and coaxial connection of CVT stepless speed changes devices output shaft, tumbler gear 17 and main the deceleration little 13 coaxial connections of tooth.
Fig. 7 is the enlarged view of the single planetary speed variator of third gear among Fig. 1-6.
Fig. 8 is the another kind of way of realization of the single planetary speed variator of Fig. 7 third gear.The two working principle is identical.
The single planetary speed variator working principle of third gear shown in Fig. 8 is: power is by sun gear 1 input, by output shaft 5 outputs.Realize each gear by controlling 2 gear rings 19,24. Gear ring 19,24 can be controlled at respectively illustrated left side, middle side, three positions, right side, and state is that gear ring 19,24 is in respectively middle side among the figure.Neutral gear: gear ring 19 is positioned at leftward position, and gear ring 24 is positioned at the arbitrary position.Bottom gear advances: gear ring 19 is positioned at right positions, and gear ring 24 is positioned at right positions.Top gear advances: gear ring 19 is arranged in side or right positions, and gear ring 24 is positioned at leftward position, and this moment, speed ratio was 1: 1.Reverse gear: gear ring 19 is arranged in side position, and gear ring 24 is arranged in side position.
The single planetary speed variator shifting of third gear can have respectively the combination of the multiple control modes such as hydraulic control, automatically controlled, gas control and Manpower operating or several control modes.
Claims (10)
1. planetary stageless speed variator is comprised of planetary speed variator and stepless speed changes devices, main reducing gear, differential mechanism etc., it is characterized in that: the configuration in upright arrangement of the single planetary speed variator of third gear and stepless speed changes devices.
2. planetary stageless speed variator according to claim 1 is characterized in that: can realize at least 2 forward gearss and 1 reverse gear in the single planetary speed variator of third gear.
3. described planetary stageless speed variator is characterized in that: in the single planetary speed variator of third gear, have 4 friction elements to realize shifting according to claim 1-2.
4. described planetary stageless speed variator is characterized in that: in the single planetary speed variator of third gear, have 2 gear rings to realize shifting according to claim 1-2.
5. described planetary stageless speed variator according to claim 1-4, it is characterized in that: in the single planetary speed variator of third gear, the top gear speed ratio that advances is 1: 1.
6. described planetary stageless speed variator according to claim 1-5, it is characterized in that: in the single planetary speed variator of third gear, sun wheel shaft is power input shaft.
7. described planetary stageless speed variator according to claim 1-6, it is characterized in that: the single planetary speed variator of third gear is positioned at the input shaft end of stepless speed changes devices.
8. described planetary stageless speed variator according to claim 1-6, it is characterized in that: the single planetary speed variator of third gear is positioned at the output shaft end of stepless speed changes devices.
9. described planetary stageless speed variator is characterized in that: a pair of tumbler gear 16,17 is arranged according to claim 1-8.
10. described planetary stageless speed variator according to claim 1-9 is characterized in that: the single planetary speed variator of third gear selects gear shift to be realized by liquid/electric control mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210086260 CN103322145A (en) | 2012-03-21 | 2012-03-21 | Planetary continuous variable transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210086260 CN103322145A (en) | 2012-03-21 | 2012-03-21 | Planetary continuous variable transmission |
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| Publication Number | Publication Date |
|---|---|
| CN103322145A true CN103322145A (en) | 2013-09-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210086260 Pending CN103322145A (en) | 2012-03-21 | 2012-03-21 | Planetary continuous variable transmission |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387703A (en) * | 2017-08-17 | 2017-11-24 | 芜湖通全科技有限公司 | Buncher |
| CN113653779A (en) * | 2021-07-07 | 2021-11-16 | 东风汽车集团股份有限公司 | Continuously variable transmission and vehicle |
-
2012
- 2012-03-21 CN CN 201210086260 patent/CN103322145A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387703A (en) * | 2017-08-17 | 2017-11-24 | 芜湖通全科技有限公司 | Buncher |
| CN113653779A (en) * | 2021-07-07 | 2021-11-16 | 东风汽车集团股份有限公司 | Continuously variable transmission and vehicle |
| CN113653779B (en) * | 2021-07-07 | 2023-05-30 | 东风汽车集团股份有限公司 | Continuously variable transmission and vehicle |
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Application publication date: 20130925 |