CN203717808U - Three-gear speed changer of double-planetary system - Google Patents
Three-gear speed changer of double-planetary system Download PDFInfo
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- CN203717808U CN203717808U CN201320651112.4U CN201320651112U CN203717808U CN 203717808 U CN203717808 U CN 203717808U CN 201320651112 U CN201320651112 U CN 201320651112U CN 203717808 U CN203717808 U CN 203717808U
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- train
- clutch
- planetary gear
- level planetary
- planetary system
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Abstract
The utility model discloses a three-gear speed changer of a double-planetary system. The three-gear speed changer comprises a first-level planetary system and a second-level planetary system which connected in series, a control system is used to control the first-level planetary system and the second-level planetary system to integrally achieve rigid transmission output, control the first-level planetary system and the second-level planetary system to be taken as a planetary system singly achieve to output, and control both the first-level planetary system and the second-level planetary system to be taken as the planetary system to achieve series connection output. The three-gear speed changer of the double-planetary system implements the series connection output of the double planetary systems, the output of one single planetary system, or the rigid transmission output of the double planetary systems, so as to achieve the larger variation range of transmission ratio and have a better capability of adapting to the movement environment; the speed changer is simple in structure and higher in transmission efficiency, and has the advantages of compact structure, small size, light weight, large bearing capability, large range of transmitted power and transmission range, low operation noise, high efficiency, long service life and the like, so that a smaller space is occupied after the installation, and the three-gear speed changer adopting the structure is better suitable for a small-sized motor vehicle.
Description
Technical field
The utility model relates to a kind of automotive component, particularly a kind of double-planet system three-speed gearbox.
Background technique
Motor Vehicle is divided into the vehicle that electric motor car (two-wheeled, three-wheel and electric vehicle) and the motor of take are power, and speed changer is the necessaries of Motor Vehicle, can adjust outputting power according to running resistance and running speed, and it is best that consumption of energy reaches.In prior art, in order to coordinate the output of power and rotating speed, the many mark structures of employing that speed changer is more, by clutch, synchronizer and gear engagement structure, form the switching engagement of multiple sets of teeth wheel, to guarantee different rotating speeds and moment of torsion output.
Because the speed changer of prior art is main mainly with gear engagement, by shift fork, drive synchronizer to switch; Gear-box integral arrangement is complicated, and volume is larger; Particularly, for speed changer structure more than third gear, structure display obtains particularly in disorder complexity, and transmission efficiency is lower, and energy consumes more, is unfavorable for energy-conserving and environment-protective, is not more suitable for the application of equipment of small motor vehicle.
In prior art, for addressing the above problem, also occurred the structure that some utilize planetary gear train formation speed changer, but due to the problem of arranging and controlling, component being more, still there are the problems referred to above in complex structure.
Therefore, need a kind of speed changer, have simple structure, and transmission efficiency is higher, volume is little, after making to install, takies less space, is applicable to mini motor vehicle, has larger gear range, has good movement environment adaptive capacity.
Model utility content
In view of this, the utility model provides a kind of double-planet system three-speed gearbox, has simple structure, and transmission efficiency is higher, volume is little, after making to install, takies less space, be applicable to mini motor vehicle, there is larger gear range, there is good movement environment adaptive capacity.
The utility model discloses a kind of double-planet system three-speed gearbox, comprise one-level planetary gear train, secondary planet train and control system, described one-level planetary gear train and the series connection of secondary planet train;
Described control system makes one-level planetary gear train and secondary planet train integral rigidity transmission output, control one-level planetary gear train or secondary planet train as planetary gear train, export and control separately one-level planetary gear train and secondary planet train all as planetary gear train series connection output for controlling.
Further, the sun gear I of described one-level planetary gear train is power intake, and the planet carrier I of one-level planetary gear train coordinates with the sun gear II transmission of secondary planet train, and the planet carrier II of secondary planet train is for outputting power;
Further, described control system comprises clutch A, clutch B and clutch C, described clutch C can fixing and locking secondary planet train ring gear II, clutch A, ring gear I and clutch B are in transmission connection, clutch A can lock and coordinate with the transmission of sun gear I, and clutch B can lock and coordinate with the transmission of ring gear II;
Further, described clutch A is separated with sun gear, clutch B locks ring gear II and clutch C locking ring gear II, and the ring gear I of one-level planetary gear train is locked, and one-level planetary gear train and secondary planet train are respectively as planetary gear train series connection output;
Or described clutch A locks sun gear I, clutch B is separated with ring gear II, clutch C locking ring gear II, one-level planetary gear train integral rigidity transmission, secondary planet train is exported as planetary gear train;
Or described clutch A locking sun gear I, clutch B locking ring gear II and clutch C are separated with ring gear II, one-level planetary gear train and secondary planet train integral body are exported as positive drive.
The beneficial effects of the utility model: double-planet system three-speed gearbox of the present utility model, adopt double planetary systems structure, and utilize control system simply to control, the series connection that realizes double-planet system is exported, a planetary system is exported or double-planet positive drive output, reach larger velocity ratio excursion, there is good movement environment adaptive capacity; Speed changer structure is simple, and transmission efficiency is higher, there is compact structure, volume is little, quality is little, bearing capacity is large, transmitted power scope and the advantage such as transmission range is large, running noises is little, efficiency is high and the life-span is long, after making to install, take less space, the three-speed gearbox of this structure more can be applicable to mini motor vehicle; The utility model is not merely applied to three-speed gearbox in use, can be as required combine the utility model is a plurality of, such as two groups of series connection of application the present invention, or increase a planetary gear train, form multi-speed transmission, realize better object energy-saving and cost-reducing and optimization motor-driven vehicle going.
Accompanying drawing explanation
Engaging drawings and Examples is below further described the utility model.
Fig. 1 is the utility model structural representation.
Embodiment
Fig. 1 is the utility model structural representation, as shown in the figure: the double-planet system three-speed gearbox of the present embodiment, comprises one-level planetary gear train, secondary planet train and control system, described one-level planetary gear train and the series connection of secondary planet train; Certainly, one-level planetary gear train comprises ring gear I 1, planet wheel I 2, sun gear I 4 and planet carrier I 3, and secondary planet train comprises ring gear II 5, planet wheel II 6, sun gear II 8 and planet carrier II 7; The series connection of one-level planetary gear train and secondary planet train refers to two planetary gear train and is connected and outputting power successively, rather than output side by side;
Described control system makes one-level planetary gear train and secondary planet train integral rigidity transmission output, control one-level planetary gear train or secondary planet train as planetary gear train, export and control separately one-level planetary gear train and secondary planet train all as planetary gear train series connection output for controlling; Control system can be for manual control system or is automatically controlled, and by various mechanical means, controls the relation between one-level planetary gear train and sun gear, planet wheel and the ring gear of secondary planet train, reaches above-mentioned technique effect.
In the present embodiment, the sun gear I 4 of described one-level planetary gear train is power intake, and the planet carrier I 3 of one-level planetary gear train is in transmission connection with the sun gear II 8 of secondary planet train, and the planet carrier II 7 of secondary planet train is for outputting power; Form the export structure of series connection, be more conducive to the integral arrangement of speed changer; Transmission coordinate can be rigidly connected, the conventional mechanical transmission Placement such as spline joint.
In the present embodiment, described control system comprises clutch A, clutch B and clutch C, the ring gear II 5 that described clutch C can fixing and locking secondary planet train, and certainly, separable realization does not interfere with each other yet; Clutch A, ring gear I 1 and clutch B are in transmission connection, i.e. clutch A, B fixed installation or be fixedly installed in ring gear I 1 at circumferencial direction, formation is in transmission connection, can be rigidly connected, mechanical transmission Placement that spline joint etc. is conventional; Clutch A can lock and coordinate with the transmission of sun gear I, after locking, forms transmission and coordinates, and certainly, separable realization does not interfere with each other yet; Clutch B can lock and coordinate with the transmission of ring gear II, after locking, forms transmission and coordinates, and certainly, after separation, does not interfere with each other; Clutch A, clutch B and clutch C all can be automatic clutch or manual clutch, do not affect the realization of model utility object; By the control of clutch, realize the array output of the different modes of one-level planetary gear train and secondary planet train, simple and compact for structure, and realize larger gear range; Compare with existing planet gear train speed changer output, more can be applicable to comparatively rugged environment of driving environment, to guarantee the use flexibility of vehicle; Fixing and locking refers to respect to rotating component, can form fixingly, and such as clutch, C is fixedly installed in casing, and after locking ring gear II, ring gear II is fixing; And clutch A and clutch C are can not be fixed on casing after locking, but the parts that are locked are servo-actuated; The locking of clutch is common clutch and engages;
In the present embodiment, described clutch A is separated with sun gear, clutch B locks ring gear II and clutch C locking ring gear II 5, the ring gear I 1 of one-level planetary gear train is locked, and one-level planetary gear train and secondary planet train are respectively as planetary gear train series connection output; Be one-level planetary gear train and the secondary planet train normal planetary gear train outputting power of conduct respectively, transmission ratio is i
1=(1+k
1) (1+k
2), be lowest gear output, be suitable for using in the situation of larger running resistance, i.e. travel in heavy duty or compare great Po road;
When running resistance reduces, vehicle is more brisk while travelling, and described clutch A locking sun gear I 4, clutch B are separated with ring gear II 5, clutch C locking ring gear II 5, and one-level planetary gear train integral rigidity transmission, secondary planet train is exported as planetary gear train; Be one-level planetary gear train as being in transmission connection, secondary planet train is as normal planetary gear train outputting power, transmission ratio is i
2=(1+k
2), be middle bay output, be suitable for using in situation that slightly large running resistance and medium speed require;
When running resistance further reduces, when vehicle is comparatively brisk, described clutch A locking sun gear I, clutch B locking ring gear II 5 and clutch C are separated with ring gear II 5, and one-level planetary gear train and secondary planet train integral body are exported as positive drive; Now one-level planetary gear train and secondary planet train are respectively as driving component, and speed changer integral body does not have speed changing effect, and transmission ratio is i
3=1, be top gear, be suitable for level road the occasion higher to rate request.
The Combined clutch of the concrete gear of speed changer of the present utility model sees the following form:
| ? | A | B | C | ? | ? | ? |
| 1 | ? | ● | ● | i 1=(1+k 1)·(1+k 2) | ? | ? |
| 2 | ● | ? | ● | i 2=(1+k 2) | ? | ? |
| 3 | ● | ● | ? | i 3=1 | ? | ? |
The utility model is not merely applied to three-speed gearbox in use, can be as required combine the utility model is a plurality of, such as two groups of series connection of application the present invention, or increase a planetary gear train, and according to effective permutation and combination gear selecting, form multi-speed transmission, realize better object energy-saving and cost-reducing and optimization motor-driven vehicle going.
Finally explanation is, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (3)
1. a double-planet system three-speed gearbox, is characterized in that: comprise one-level planetary gear train, secondary planet train and control system, described one-level planetary gear train and the series connection of secondary planet train;
Described control system makes one-level planetary gear train and secondary planet train integral rigidity transmission output, control one-level planetary gear train or secondary planet train as planetary gear train, export and control separately one-level planetary gear train and secondary planet train all as planetary gear train series connection output for controlling; Described control system comprises clutch A, clutch B and clutch C, described clutch C can fixing and locking secondary planet train ring gear II, clutch A, ring gear I and clutch B are in transmission connection, clutch A can lock and coordinate with the transmission of sun gear I, and clutch B can lock and coordinate with the transmission of ring gear II.
2. double-planet system three-speed gearbox according to claim 1, it is characterized in that: the sun gear I of described one-level planetary gear train is power intake, the planet carrier I of one-level planetary gear train coordinates with the sun gear II transmission of secondary planet train, and the planet carrier II of secondary planet train is for outputting power.
3. double-planet system three-speed gearbox according to claim 1, it is characterized in that: described clutch A is separated with sun gear, clutch B locks ring gear II and clutch C locking ring gear II, the ring gear I of one-level planetary gear train is locked, and one-level planetary gear train and secondary planet train are respectively as planetary gear train series connection output;
Or described clutch A locks sun gear I, clutch B is separated with ring gear II, clutch C locking ring gear II, one-level planetary gear train integral rigidity transmission, secondary planet train is exported as planetary gear train;
Or described clutch A locking sun gear I, clutch B locking ring gear II and clutch C are separated with ring gear II, one-level planetary gear train and secondary planet train integral body are exported as positive drive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320651112.4U CN203717808U (en) | 2013-10-22 | 2013-10-22 | Three-gear speed changer of double-planetary system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320651112.4U CN203717808U (en) | 2013-10-22 | 2013-10-22 | Three-gear speed changer of double-planetary system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203717808U true CN203717808U (en) | 2014-07-16 |
Family
ID=51156961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320651112.4U Withdrawn - After Issue CN203717808U (en) | 2013-10-22 | 2013-10-22 | Three-gear speed changer of double-planetary system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203717808U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527728A (en) * | 2013-10-22 | 2014-01-22 | 重庆隆旺机电有限责任公司 | Three-gear transmission with double planet systems |
-
2013
- 2013-10-22 CN CN201320651112.4U patent/CN203717808U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527728A (en) * | 2013-10-22 | 2014-01-22 | 重庆隆旺机电有限责任公司 | Three-gear transmission with double planet systems |
| CN103527728B (en) * | 2013-10-22 | 2016-08-17 | 重庆隆旺机电有限责任公司 | Double-planet system three-speed gearbox |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140716 Effective date of abandoning: 20160817 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |