CN207926363U - A kind of wheel hub motor - Google Patents
A kind of wheel hub motor Download PDFInfo
- Publication number
- CN207926363U CN207926363U CN201820374257.7U CN201820374257U CN207926363U CN 207926363 U CN207926363 U CN 207926363U CN 201820374257 U CN201820374257 U CN 201820374257U CN 207926363 U CN207926363 U CN 207926363U
- Authority
- CN
- China
- Prior art keywords
- main shaft
- gear
- wheel hub
- wheel
- planet carrier
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Retarders (AREA)
Abstract
This practicality is related to electrocar technical field, and the output torque of the wheel hub motor in existing electrocar cannot be taken into account simultaneously with economic and practical；The utility model provides a kind of wheel hub motor, including wheel hub, the wheel shaft, the inner stator set on wheel hub side and the outer rotor that wear wheel hub and the planetary reducer for being set to the wheel hub other side, the planetary reducer includes sun gear, planetary gear, planet carrier and the ring gear for being fixed on wheel hub wall, and the sun gear, planetary gear and ring gear are sequentially connected；The wheel shaft includes the first main shaft and the second main shaft；The diameter of second main shaft is less than the diameter of the first main shaft；The end face of first main shaft is equipped with the first blind hole for being connect with the second main shaft；The inner stator is socketed and is fixed on first main shaft；The sun gear and planet carrier are socketed on second main shaft, and sun gear is fixed with outer rotor, and planet carrier is fixed with the second main shaft；It is i.e. economic and practical, and output torque is big.
Description
Technical field
The utility model is related to electrocar technical field, more specifically a kind of wheel hub motor.
Background technology
The speed of the small-sized electrics carrier such as electrically driven truck and electri forklift is relatively low, close with people's speed of travel, but horsepower
It to transport goods greatly.Therefore In-wheel motor driving is mostly used greatly, built-in electric motor and planetary reducer are combined, then
It is placed in wheel hub, the winding number of motor is decelerated to by desired winding number by retarder, wheel hub is made to obtain larger torque.
In the prior art, wheel hub motor includes wheel shaft, inner stator, outer rotor, wheel hub and planetary reducer, planet tooth
Wheel decelerator includes sun gear, planetary gear, planet carrier and ring gear.Wheel shaft is arranged in wheel hub, and inner stator and outer rotor are set to
Side in wheel hub, planetary reducer are set to the wheel hub other side.Sun gear and planet carrier are socketed on wheel shaft, the sun
Ratio between the diameter of wheel and the internal diameter of ring gear is smaller, and the torque that wheel hub obtains is bigger.Such as application No. is
2017209730278 Chinese patent.
The wheel shaft of the structural hub motor wears wheel hub, and wheel shaft both ends are individually fixed on vehicle frame, car body and goods weight
Share on wheel shaft.In process of production, it is contemplated that Material Cost and processing cost, wheel hub are made using common plain carbon steel
It is thicker to obtain its diameter.This is allowed in the case where hub diameter is constant, and wheel shaft is thicker, is socketed on the sun gear on wheel shaft
Diameter also increases therewith, and the ratio between the diameter of sun gear and the internal diameter of ring gear increases, and also reduces such wheel hub
The output torque of motor.
Utility model content
Technical problem to be solved in the utility model is to overcome above-mentioned defect existing in the prior art, provides a kind of tool
There is larger output torque and economic and practical wheel hub motor.
To achieve the above object, the utility model is achieved by the following technical programs：A kind of wheel hub motor, including wheel
Hub, the wheel shaft for wearing wheel hub, the inner stator set on wheel hub side and outer rotor and the planetary gear for being set to the wheel hub other side
Retarder, the planetary reducer include sun gear, planetary gear, planet carrier and the ring gear for being fixed on wheel hub wall, institute
Sun gear, planetary gear and ring gear is stated to be sequentially connected；The wheel shaft includes the first main shaft and the second main shaft；Second main shaft
Diameter is less than the diameter of the first main shaft；The end face of first main shaft is blind equipped with first for being connect with the second main shaft
Hole；The inner stator is socketed and is fixed on first main shaft；The sun gear and planet carrier are socketed on second main shaft
On, sun gear is fixed with outer rotor, and planet carrier is fixed with the second main shaft.
Using above-mentioned technical proposal, wheel shaft is divided into the first main shaft and the second main shaft, it will be able to be arranged according to demand
The diameter of two main shafts, and the second main shaft is made using material more higher than the first main axe intensity, that is, reduce Material Cost and
Processing cost, have the advantages that it is economic and practical, also have larger output torque.
The further preferred scheme of the utility model is：Internal thread, second main shaft one end are equipped in first blind hole
Equipped with corresponding internal thread；Easy processing.
The further preferred scheme of the utility model is：The end face of the planet carrier axially outwardly extends to form axle sleeve, institute
It states axle sleeve to be coated on outside second main shaft, one end of the wheel hub with the bearing being socketed on outside axle sleeve with planet carrier by connecting
It connects.
Using above-mentioned technical proposal, more one layer of wheel case, are equivalent to and increase contact surface between the second main shaft and wheel hub
Product, reduces the pressure on contact surface, therefore can increase the service life of the second main shaft.
The further preferred scheme of the utility model is：The wheel shaft further includes third main shaft；The diameter of the third main shaft
Less than the diameter of second main shaft, second that the end face of second main shaft is equipped with for being connect with third main shaft is blind
Hole；The end face of the planet carrier axially outwardly extends to form axle sleeve, and the axle sleeve is coated on second main shaft and third master
Outside axis, one end of the wheel hub with the bearing being socketed on outside axle sleeve with planet carrier by connecting.
The further preferred scheme of the utility model is：Internal thread, third main shaft one end are equipped in second blind hole
Equipped with corresponding internal thread.
The further preferred scheme of the utility model is：The planetary gear is set on planet carrier, including a reduction gearing
An and transmission gear；The reduction gearing is duplicate gear, is made of large diameter gear and small-diameter gear；The large diameter gear with
The sun gear is sequentially connected, and the small-diameter gear is sequentially connected through the transmission gear and the ring gear.
The utility model is more preferably：The planetary gear is set on planet carrier, including a train of reduction gears and
One transmission gear；The train of reduction gears includes the multiple duplicate gears of multi-stage speed-reducing of being sequentially connected and formed successively, duplex-gear
Wheel is made of large diameter gear and small-diameter gear, and wherein the large diameter gear of first order duplicate gear is sequentially connected with the sun gear,
The small-diameter gear of afterbody duplicate gear is sequentially connected through the transmission gear and the ring gear；Further increase deceleration
Than amplifying torque.
The utility model is more preferably：First main shaft is made of ordinary carbon steel, and second main shaft is by height
Strength steel is made.
In conclusion the utility model has the advantages that：Compared with prior art, wheel shaft is divided into the first main shaft
With the second main shaft, it will be able to be arranged the diameter of the second main shaft, and use material more higher than the first main axe intensity according to demand
The second main shaft is made, that is, reduces Material Cost and processing cost, has the advantages that economic and practical, also there is larger output
Torque；And by the way that wheel case is arranged to increase wheel shaft service life.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the explosive view of the utility model；
Fig. 3 is the structural schematic diagram that the utility model is free of wheel hub；
Fig. 4 is the utility model partial sectional view.
In figure：1, wheel shaft；11, the first main shaft；111, the first blind hole；12, the second main shaft；121, the second blind hole；13, third
Main shaft；2, inner stator；3, outer rotor；4, planetary reducer；41, sun gear；42, planetary gear；43, planet carrier；44, internal tooth
Circle；45, duplicate gear；451, large diameter gear；452, small-diameter gear；46, transmission gear；47, axle sleeve；5, wheel hub.
Specific implementation mode
The utility model is described in further detail below in conjunction with attached drawing.
The present embodiment is only the explanation to the utility model, is not limitations of the present invention, this field skill
Art personnel can as needed make the present embodiment the modification of not creative contribution after reading this specification, but as long as
It is all protected by Patent Law in the right of the utility model.
As shown in Figure 1, Figure 2 and Figure 3, show a kind of wheel hub motor, including wheel hub 5, wear wheel hub 5 wheel shaft 1, be set to
The inner stator 2 and outer rotor 3 of 5 side of wheel hub and the planetary reducer 4 for being set to 5 other side of wheel hub.Inner stator 2 is fixed
In on wheel shaft 1, outer rotor 3 is socketed on outside inner stator 2 and its both ends is rotated by bearing on wheel shaft 1.
Planetary reducer 4 includes sun gear 41, planetary gear 42, planet carrier 43 and the internal tooth for being fixed on 5 inner wall of wheel hub
Circle 44.Planet carrier 43 is socketed and is fixed on wheel shaft 1, and planetary gear 42 is set on planet carrier 43；41 one end of sun gear is fixed on
On outer rotor 3, the other end is sequentially connected by planetary gear 42 and ring gear 44.
Wheel shaft 1 includes the first main shaft 11, the second main shaft 12 and third main shaft 13, and the first main shaft 11 is by normal carbon steel
At the second main shaft 12 is made of high strength steel.The diameter of second main shaft 12 is less than the diameter of the first main shaft 11；First main shaft 11
End face is equipped with the first blind hole 111 for being connect with the second main shaft 12；The diameter of third main shaft 13 is less than the second main shaft 12
Diameter, the end face of the second main shaft 12 is equipped with the second blind hole 121 for being connect with third main shaft 13.In the present embodiment
In, internal thread is equipped in the first blind hole 111,12 one end of the second main shaft is equipped with corresponding internal thread；It is set in second blind hole 121
There are internal thread, 13 one end of third main shaft to be equipped with corresponding internal thread.In addition to this, the second main shaft 12 and the first main shaft 11 with
And the connection type of third main shaft 13 and the second main shaft 12 can also be that interference fit, grafting, key connection or buckle etc. are detachable
Connection.
Inner stator 2 is socketed and is fixed on the first main shaft 11；Sun gear 41 and planet carrier 43 are socketed on the second main shaft 12,
Planet carrier 43 and the second main shaft 12 are fixed.The end face of planet carrier 43 axially outwardly extends to form axle sleeve 47, and axle sleeve 47 wraps successively
Be overlying on outside the second main shaft 12 and third main shaft 13, one end of wheel hub 5 by with the bearing and planet carrier 43 that are socketed on outside axle sleeve 47
Connection.13 one end of third main shaft is equipped with for by the bolt head of 47 axial limiting of axle sleeve.
In order to increase the reduction ratio of planetary reducer 4, increase 5 torque of wheel hub.Planetary gear 42 is set to planet carrier 43
On, including a reduction gearing and a transmission gear 46；Reduction gearing is duplicate gear 45, by large diameter gear 451 and path tooth
452 composition of wheel；Large diameter gear 451 is sequentially connected with sun gear 41, and small-diameter gear 452 is driven through transmission gear 46 and ring gear 44
Connection.
In addition to this, also another embodiment：Planetary gear 42 is set on planet carrier 43, including a train of reduction gears
An and transmission gear 46；Train of reduction gears includes the multiple duplicate gears 45 of multi-stage speed-reducing of being sequentially connected and formed successively, double
Connection gear 45 be made of large diameter gear 451 and small-diameter gear 452, wherein the large diameter gear 451 of first order duplicate gear 45 with too
Sun wheel 41 is sequentially connected, and the small-diameter gear 452 of afterbody duplicate gear 45 is sequentially connected through transmission gear 46 and ring gear 44.
Claims (8)
1. a kind of wheel hub motor, including wheel hub（5）, wear wheel hub（5）Wheel shaft（1）, be set to wheel hub（5）The inner stator of side
（2）And outer rotor（3）And it is set to wheel hub（5）The planetary reducer of the other side（4）, the planetary reducer
（4）Including sun gear（41）, planetary gear（42）, planet carrier（43）Be fixed on wheel hub（5）The ring gear of inner wall（44）, it is described too
Sun wheel（41）, planetary gear（42）And ring gear（44）It is sequentially connected, it is characterised in that：The wheel shaft（1）Including the first main shaft
（11）With the second main shaft（12）；Second main shaft（12）Diameter be less than the first main shaft（11）Diameter；First main shaft
（11）End face be equipped with for the second main shaft（12）First blind hole of connection（111）；The inner stator（2）It is socketed and consolidates
Due to first main shaft（11）On；The sun gear（41）And planet carrier（43）It is socketed on second main shaft（12）On, too
Sun wheel（41）With outer rotor（3）It is fixed, planet carrier（43）With the second main shaft（12）It is fixed.
2. wheel hub motor according to claim 1, it is characterised in that：First blind hole（111）It is interior to be equipped with internal thread, institute
State the second main shaft（12）One end is equipped with corresponding internal thread.
3. according to the wheel hub motor described in any one of claim 1-2, it is characterised in that：The planet carrier（43）End face
Axially outwardly extend to form axle sleeve（47）, the axle sleeve（47）It is coated on second main shaft（12）Outside, the wheel hub（5）One
End by be socketed on axle sleeve（47）Outer bearing and planet carrier（43）Connection.
4. wheel hub motor according to claim 1, it is characterised in that：The wheel shaft（1）It further include third main shaft（13）；Institute
State third main shaft（13）Diameter be less than second main shaft（12）Diameter, second main shaft（12）End face be equipped with
For with third main shaft（13）Second blind hole of connection（121）；The planet carrier（43）End face axially outwardly extend to form
Axle sleeve（47）, the axle sleeve（47）It is coated on second main shaft（12）With third main shaft（13）Outside, the wheel hub（5）One end
By be socketed on axle sleeve（47）Outer bearing and planet carrier（43）Connection.
5. wheel hub motor according to claim 4, it is characterised in that：Second blind hole（121）It is interior to be equipped with internal thread, institute
State third main shaft（13）One end is equipped with corresponding internal thread.
6. wheel hub motor according to claim 1, it is characterised in that：The planetary gear（42）It is set to planet carrier（43）
On, including a reduction gearing and a transmission gear（46）；The reduction gearing is duplicate gear（45）, by large diameter gear
（451）And small-diameter gear（452）Composition；The large diameter gear（451）With the sun gear（41）It is sequentially connected, the path tooth
Wheel（452）Through the transmission gear（46）With the ring gear（44）It is sequentially connected.
7. wheel hub motor according to claim 1, it is characterised in that：The planetary gear（42）It is set to planet carrier（43）
On, including a train of reduction gears and a transmission gear（46）；The train of reduction gears includes being sequentially connected and being formed more successively
Multiple duplicate gears that grade is slowed down（45）, duplicate gear（45）By large diameter gear（451）And small-diameter gear（452）Composition, wherein
First order duplicate gear（45）Large diameter gear（451）With the sun gear（41）It is sequentially connected, afterbody duplicate gear
（45）Small-diameter gear（452）Through the transmission gear（46）With the ring gear（44）It is sequentially connected.
8. according to the wheel hub motor described in any one of claim 1-2, it is characterised in that：First main shaft（11）By common
Carbon steel is made, second main shaft（12）It is made of high strength steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820374257.7U CN207926363U (en) | 2018-03-19 | 2018-03-19 | A kind of wheel hub motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820374257.7U CN207926363U (en) | 2018-03-19 | 2018-03-19 | A kind of wheel hub motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207926363U true CN207926363U (en) | 2018-09-28 |
Family
ID=63596151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820374257.7U Active CN207926363U (en) | 2018-03-19 | 2018-03-19 | A kind of wheel hub motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207926363U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109412375A (en) * | 2018-10-22 | 2019-03-01 | 武汉大通窑炉机械设备有限公司 | Stepper is set in a kind of accurate positioning of brief and practical |
| CN109515159A (en) * | 2018-11-22 | 2019-03-26 | 武汉思得汽车科技有限公司 | A kind of dual wheel hub motor assembly topological structure, new-energy automobile |
| CN109572413A (en) * | 2018-11-12 | 2019-04-05 | 建德市五星车业有限公司 | A kind of deceleration device of hub motor |
| CN109578524A (en) * | 2018-12-11 | 2019-04-05 | 中国北方车辆研究所 | Wheel motor drive device single-stage helical teeth planetary reduction gear |
| CN111146902A (en) * | 2018-11-03 | 2020-05-12 | 达尼克有限责任公司 | Electromechanical drive device, brake system and battery management system |
| CN113062949A (en) * | 2021-04-13 | 2021-07-02 | 青岛金思特电子有限公司 | Universal planetary gear reducer for outer rotor type motor |
| WO2022082438A1 (en) * | 2020-10-20 | 2022-04-28 | 舍弗勒技术股份两合公司 | Hub driving system |
-
2018
- 2018-03-19 CN CN201820374257.7U patent/CN207926363U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109412375A (en) * | 2018-10-22 | 2019-03-01 | 武汉大通窑炉机械设备有限公司 | Stepper is set in a kind of accurate positioning of brief and practical |
| CN111146902A (en) * | 2018-11-03 | 2020-05-12 | 达尼克有限责任公司 | Electromechanical drive device, brake system and battery management system |
| CN109572413A (en) * | 2018-11-12 | 2019-04-05 | 建德市五星车业有限公司 | A kind of deceleration device of hub motor |
| CN109572413B (en) * | 2018-11-12 | 2020-09-01 | 建德市五星车业有限公司 | Speed reducer of hub motor |
| CN109515159A (en) * | 2018-11-22 | 2019-03-26 | 武汉思得汽车科技有限公司 | A kind of dual wheel hub motor assembly topological structure, new-energy automobile |
| CN109515159B (en) * | 2018-11-22 | 2021-08-31 | 武汉一思一得汽车科技有限公司 | Topological structure of double-type wheel hub motor assembly and new energy automobile |
| CN109578524A (en) * | 2018-12-11 | 2019-04-05 | 中国北方车辆研究所 | Wheel motor drive device single-stage helical teeth planetary reduction gear |
| WO2022082438A1 (en) * | 2020-10-20 | 2022-04-28 | 舍弗勒技术股份两合公司 | Hub driving system |
| CN113062949A (en) * | 2021-04-13 | 2021-07-02 | 青岛金思特电子有限公司 | Universal planetary gear reducer for outer rotor type motor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207926363U (en) | A kind of wheel hub motor | |
| US10065489B2 (en) | Drive axle of electric distribution torque | |
| AU775735B2 (en) | Electric drive for a vehicle | |
| CN100465476C (en) | Main gear down device | |
| CN201245071Y (en) | Special hub reduction gear | |
| CN210970550U (en) | Double-motor electric drive axle assembly with wheel-side speed reducer | |
| CN113635709A (en) | Multi-mode torque-directed distribution electric transaxle with single actuator | |
| CN104670010B (en) | A kind of electronic active spur gear differential mechanism for possessing torque fixed direction allocation function | |
| US20130281250A1 (en) | Torque vectoring device | |
| CN208252676U (en) | A kind of hub motor with long service life | |
| CN108544918A (en) | A kind of Electric Motor Wheel and vehicle | |
| CN113696676A (en) | Torque-oriented distribution electric drive axle using planet row and double gear | |
| CN201129428Y (en) | Differential transmission apparatus of electric vehicle | |
| US6755093B2 (en) | Planetary drive assembly with idlers for low floor vehicle | |
| CN207278791U (en) | One kind wheel side planetary reducer | |
| CN210034308U (en) | Duplex planetary gear wheel-side speed reducer | |
| CN105172587A (en) | Rear drive axle of Z type passenger car with rear engine | |
| CN112918189A (en) | Coaxial electric drive axle with differential lock | |
| CN203766410U (en) | Steering drive axle | |
| US10865852B2 (en) | Powertrain with cycloidal mechanism having reinforced contact surfaces | |
| CN208118930U (en) | Torque fixed direction allocation electric drive axle based on double-rotor machine | |
| CN203023426U (en) | Cylindrical gear power-shunting type limited slip differential | |
| CN205059265U (en) | Rear drive axle of Z type passenger train of engine postposition | |
| CN102205934A (en) | Hoist-driving device of steel-rope electric hoist | |
| CN201034149Y (en) | Main retarding apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 321300 no.287, Lingshi Road, Chengxi New District, Yongkang City, Jinhua City, Zhejiang Province Patentee after: Zhejiang Unitech Electric Co.,Ltd. Address before: 321300 no.287, Lingshi Road, Chengxi Industrial Zone, Yongkang City, Jinhua City, Zhejiang Province Patentee before: ZHEJIANG UNITE MOTOR Co.,Ltd. |