CN201610925U - Electric automobile concentric shaft speed variator - Google Patents
Electric automobile concentric shaft speed variator Download PDFInfo
- Publication number
- CN201610925U CN201610925U CN2010201336905U CN201020133690U CN201610925U CN 201610925 U CN201610925 U CN 201610925U CN 2010201336905 U CN2010201336905 U CN 2010201336905U CN 201020133690 U CN201020133690 U CN 201020133690U CN 201610925 U CN201610925 U CN 201610925U
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- China
- Prior art keywords
- transmission shaft
- shaft
- output shaft
- spline
- gear
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- Expired - Fee Related
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Abstract
An electric automobile concentric shaft speed variator comprises an output shaft, a motor casing, a stator and a rotor, a transmission shaft, and a planet wheel carrier, a center gear is provided at the middle part of the transmission shaft, the transmission shaft at one side of the center gear is a spline shaft, a positioning plane is provided at a shaft end of the other side, the center rotor is of a hollow structure with the inner wall having a spline slot, the transmission shaft is penetrated through the center rotor and is movably connected wit the center rotor; the planet wheel carrier comprises a plurality of planetary supporters which are fixed together, a shaft sleeve is sleeved at the center; a plurality of gear rings are fixedly connected on the inner wall of the motor casing; a telescopic sleeve and a locking sleeve are sleeved inside of the output shaft, a spline is arranged at the end of the telescopic sleeve, the positioning slot is arranged inside of the locking sleeve, and a pressure spring is provided between the telescopic sleeve and the inner wall of the output shaft. The utility model has advantages of simple structure and stabilized transmission, the speed change can be implemented only by axial sliding of the transmission shaft to change the position of the center gear, the operation is convenient, for different types of the electric automobile, namely, the numbers of the planetary supporters on the planet wheel carrier and the sizes of the planet wheel on transmission shaft are changed, which can implement the speed change, and the manufacturing of the utility model is simple.
Description
Technical field
The utility model relates to a kind of transmission device, specifically a kind of electric vehicle concentric shafts speed changer.
Background technique
The variable speed drive of existing application and electric motor car, general all is to realize speed change by the size of current that changes motor output, the gear that also has plenty of by changing the different numbers of teeth on drive wheel and the output shaft is meshed, change transmission and recently realize speed change, this complicated in mechanical structure, poor stability, Applicable scope is little, more and more can not satisfy Consumer's needs.
Summary of the invention
The utility model is at deficiency of the prior art, and a kind of transmission performance height is provided, and realizes the electric vehicle concentric shafts speed changer of speed change by endwisely slipping of transmission shaft.
Realize that the technological scheme that above-mentioned purpose adopts is: a kind of electric vehicle concentric shafts speed changer, the stator that comprise the output shaft, the motor casing that are connected with wheel, is arranged on motor casing inside and rotor, the transmission shaft that is connected with the motor center rotor, also comprise planetary wheel carrier, wherein:
The middle part of a, described transmission shaft is provided with it and is the central gear of one, the transmission shaft of this central gear one side is a splined shaft, the axle head of the transmission shaft of opposite side is provided with plane of orientation, the center rotor of described motor is the hollow-core construction that inwall has spline, transmission shaft run through center rotor and with its flexible connection;
B, described planetary wheel carrier comprise a plurality of planet carriers that are fixed together, and the central sleeve of this planetary wheel carrier is equipped with the axle sleeve that an inwall is provided with spline;
Be connected with a plurality of gear rings on the inwall of c, described motor casing, each gear ring respectively with planet wheel engagement driving at different levels;
D, described output shaft inside are set with telescopic cover and locking cover successively, and the telescopic cover end is provided with spline, and the locking cover is inner to be provided with the locating slot that matches with plane of orientation, is provided with stage clip between telescopic cover and the output shaft inwall.
Compared with prior art, the utility model is simple in structure, transmission is stable, only can realize speed change by the position that changes central gear that endwisely slips of transmission shaft, easy to operate, the electric motor car of different model, the size that only needs to change what and planet wheel of planetary wheel carrier upper planet frame on the transmission shaft get final product, and making is simply.
Description of drawings
Fig. 1 is the utility model overall structure schematic representation.
Fig. 2 is the planet carrier schematic representation.
Fig. 3 is the transmission shaft structure schematic representation.
Fig. 4 is the right elevation of Fig. 3.
Fig. 5 is the output shaft structural representation.
Fig. 6 is the left view of Fig. 5.
Fig. 7 be among Fig. 5 A-A to sectional view.
Fig. 8 is the axle sleeve structure schematic representation.
Fig. 9 is the right elevation of Fig. 8.
Embodiment
Below in conjunction with drawings and Examples the utility model is described further.
Referring to accompanying drawing 1-9, in the present embodiment, this electric vehicle concentric shafts speed changer, the stator that comprise the output shaft 7, the motor casing 2 that are connected with wheel, is arranged on motor casing inside and rotor, the transmission shaft 1 that is connected with the motor center rotor, also comprise planetary wheel carrier, wherein:
The middle part of transmission shaft 1 is provided with the central gear 8 that is structure as a whole with it, the transmission shaft of these central gear 8 one sides is a splined shaft, the transmission shaft of opposite side is an optical axis, and the axle head of optical axis is provided with plane of orientation 9, the center rotor of motor is the hollow-core construction that inwall has spline, transmission shaft 1 runs through center rotor, and flexibly connects with center rotor, and transmission shaft 1 moves axially in center rotor by spline; Splined shaft on this spline and the transmission shaft 1 is connected, and this transmission shaft 1 flexibly connects with center rotor, and transmission shaft 1 can stable endwisely slipping in center rotor.
Planetary wheel carrier comprises a plurality of planet carriers that are fixed together 5, and the central sleeve of this planet carrier is equipped with the axle sleeve 6 that an inwall is provided with spline.Three planet wheels 3 are housed respectively on each planet carrier 5, and a plurality of planet carriers are with locating stud or the overdrive clutch formation multi-change speed that is fixed together, and also can be designed to cone pulley to planet wheel as required increases speed ratio.
Be connected with a plurality of gear rings on the inwall of motor casing 2, what show in the present embodiment is a gear ring 4, each gear ring respectively with planet wheel engagement driving at different levels, the gear ring number equates with the planet carrier number, cooperates transmission.
Planet carrier is sleeved on the telescopic cover 10 by axle sleeve 6, and transmission shaft 1 is connected with output shaft 7 by plane of orientation 9, and central gear 8 is as sun gear and planet wheel 3 engagement driving.
Constitute the velocity ratio difference of each planet carrier 5 upper planet wheel 3 of planet carrier, so the speed difference of output.
Using method of the present utility model is: when motor drives the output shaft rotation by transmission shaft, utilize external force, stirring transmission shaft endwisely slips, by changing the position of transmission shaft, thereby make planet wheel 3 engagements of central gear 8 and different drive ratios on this transmission shaft, bring in the slip that realizes transmission shaft by another that adopts that hydraulic pressure, machinery, various modes such as manual, pneumatic control transmission shaft, realize speed change, this moment, the rotating speed of output shaft was transmission shaft by the speed after the planet wheel change; On its fastest gear, strengthen the propelling dynamics of external force, in transmission shaft propelling spring axle, like this, telescopic shaft places output shaft 7 inside, makes the planetary wheel carrier that is sleeved on its axle head break away from, under thrust, plane of orientation 9 places and drives output shaft 7 rotations in the locating slot 13, and this moment, the rotating speed of output shaft was the transmission shaft rotating speed.Transmission shaft, output shaft and planetary carrier all are provided with one heart, and transmission is stable.
This variable speed drive is that the principle design according to planetary reduction gear forms, and comprises gear ring 4, planet wheel 3, and planet carrier 5, central gear 8 is a sun gear, output shaft 7 etc.Deceleration is that the planet wheel and the sun gear on the output shaft of the different speed ratios of application meshes together the realization speed change.Only planet carrier and output shaft break away from when the fastest gear, transmission shaft overlaps direct interlock transmission with the locking that is arranged on output shaft inside, realize that drive motor equates with the output shaft revolution, because of sun gear and the splined shaft splined shaft that is structure as a whole can move axially in the spline of rotor again, can with a planet wheel interlock in any gear in the speed reducer, disorderly retaining phenomenon can not take place in speed change.The reduction speed ratio of general this variable speed drive is: 6-1,5-1,4-1,3-1,1-1, and the fastest gear in the present embodiment is 5 retainings.
Claims (2)
1. electric vehicle concentric shafts speed changer, the stator that comprise the output shaft, the motor casing that are connected with wheel, is arranged on motor casing inside and rotor, with the transmission shaft that the motor center rotor is connected, it is characterized in that, also comprise planetary wheel carrier, wherein:
The middle part of a, described transmission shaft is provided with it and is the central gear of one, the transmission shaft of this central gear one side is a splined shaft, the axle head of the transmission shaft of opposite side is provided with plane of orientation, the center rotor of described motor is the hollow-core construction that inwall has spline, transmission shaft run through center rotor and with its flexible connection;
B, described planetary wheel carrier comprise a plurality of planet carriers that are fixed together, and the central sleeve of this planetary wheel carrier is equipped with the axle sleeve that an inwall is provided with spline;
Be connected with a plurality of gear rings on the inwall of c, described motor casing, each gear ring respectively with planet wheel engagement driving at different levels;
D, described output shaft inside are set with telescopic cover and locking cover successively, and the telescopic cover end is provided with spline, and the locking cover is inner to be provided with the locating slot that matches with plane of orientation, is provided with stage clip between telescopic cover and the output shaft inwall.
2. electric vehicle concentric shafts speed changer according to claim 1 is characterized in that described planetary wheel carrier is connected with telescopic cover by axle sleeve, and transmission shaft is connected with output shaft by plane of orientation, central gear and planet wheel engagement driving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201336905U CN201610925U (en) | 2010-03-18 | 2010-03-18 | Electric automobile concentric shaft speed variator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201336905U CN201610925U (en) | 2010-03-18 | 2010-03-18 | Electric automobile concentric shaft speed variator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201610925U true CN201610925U (en) | 2010-10-20 |
Family
ID=42961559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201336905U Expired - Fee Related CN201610925U (en) | 2010-03-18 | 2010-03-18 | Electric automobile concentric shaft speed variator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201610925U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797808A (en) * | 2012-02-29 | 2012-11-28 | 张家港市九鼎机械有限公司 | Speed control system |
-
2010
- 2010-03-18 CN CN2010201336905U patent/CN201610925U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797808A (en) * | 2012-02-29 | 2012-11-28 | 张家港市九鼎机械有限公司 | Speed control system |
| CN102797808B (en) * | 2012-02-29 | 2013-09-11 | 张家港市九鼎机械有限公司 | Speed control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20101020 Termination date: 20130318 |