CN205248972U - Hub motor - Google Patents
Hub motor Download PDFInfo
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- CN205248972U CN205248972U CN201520835250.7U CN201520835250U CN205248972U CN 205248972 U CN205248972 U CN 205248972U CN 201520835250 U CN201520835250 U CN 201520835250U CN 205248972 U CN205248972 U CN 205248972U
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- wheel hub
- main shaft
- electric machine
- machine main
- planet
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Abstract
The utility model provides a hub motor, construct including motor spindle, hub end lid, hub casing, motor body and planetary reducer, wherein, motor spindle is connected through hub end lid bearing to the hub end lid, hub casing one end is passed through the hub casing bearing and is connected motor spindle, and the other end is connected the hub end tectiform and is become the installation cavity, motor body and planetary reducer construct the setting in the installation cavity, motor body drives planetary reducer and constructs the rotation, motor body includes spider, magnet steel, stator core, winding, rotor bearing and insulating end cover, stator core is connected through insulating end cover to the winding, spider passes through the supporting of rotor bearing and installs on motor spindle, the magnet steel setting is on the medial surface that spider's the axial direction along motor spindle extends. The utility model provides a spider adopts the cold extrusion structure of integral type, and sun gear directness and spider interference fit reduce accessories, and motor density is even, improves the dynamic balance performance.
Description
Technical field
The utility model relates to electric machine structure, particularly, relates to the structure of the automobile-used wheel hub motor of a kind of electrical salf-walking.
Background technology
Wheel hub motor is the core component of electric bicycle, and it is conventionally by main shaft, wheel hub end housing, wheel hub shell, electricityMachine, planetary gear speed reducing mechanism, clutch composition, be provided with wheel hub shell and wheel hub end housing by bearing on main shaft, wheelHub shell and wheel hub end housing are generally screwed, and motor mainly adopts the brush DC electricity of inner stator outer-rotor structureMachine, is mounted by means of screws with central gear on rotor, central gear is engaged with planetary gear, planetary gear withRing gear engagement, planetary gear is arranged in planet axis by bearing, and planet axis is fixed on clutch, and clutchDevice is fixed on main shaft.
The structural disadvantages of existing above-mentioned wheel hub motor is that composition parts are many, and volume is large, and internal structure is compact not,Assemble loaded down with trivial detailsly, the cost of complete machine is higher.
Utility model content
For defect of the prior art, the purpose of this utility model is to provide a kind of wheel hub motor.
The wheel hub motor providing according to the utility model, comprises electric machine main shaft, wheel hub end housing, wheel hub shell, motorBody and planetary gear speed reducing mechanism;
Wherein, described wheel hub end housing connects electric machine main shaft by wheel hub end housing bearing; The described hub shell one end of taking turns is by wheelHub shell bearing connects described electric machine main shaft, and the other end connects described wheel hub end housing and forms installation cavity;
Described motor body and described planetary gear speed reducing mechanism are arranged in described installation cavity; Described motor body drives described rowStar reducing gear rotates;
Motor body comprises rotor field spider, magnet steel, stator core, winding, rotor bearing and insulated end cover;
Described winding connects described stator core by described insulated end cover; Described rotor field spider supports also by rotor bearingBe arranged on electric machine main shaft; Described magnet steel is arranged on the inner side of the extension of the axial direction along electric machine main shaft of described rotor field spiderOn face.
Preferably, described planetary gear speed reducing mechanism comprises planet stent, central gear, planetary gear, ring gear and planetPin;
Wherein, described planet stent is arranged on electric machine main shaft by flat key; Described central gear is fixed on described rotor and props upOn the leading flank of frame;
Described planetary gear is arranged on described planet pin by planetary bearing; One end of described planet pin connects described planetSupport;
Described planetary gear is duplicate gear, comprises the planet gear wheel that is arranged on rear end and the little tooth of planet that is arranged on rear endWheel; Planet gear wheel engages with central gear, and planet pinion engages with ring gear;
Described ring gear is fitted on the medial surface of the extension of the axial direction along electric machine main shaft of described wheel hub end housing.
Preferably, described magnet steel is bread shape.
Preferably, there is eccentric throw in the center of described stator core and the center of rotor field spider.
Preferably, described stator core comprises the first stator punching and the second stator punching that are connected by pin; Wherein,Described the first stator punching and described the second stator punching are arranged on electric machine main shaft.
Preferably, described wheel hub end housing bearing and electric machine main shaft cooperation place are provided with the first capillary groove, described the first waterproofOn groove, be provided with the first sealing ring.
Preferably, described wheel hub shell bearing and electric machine main shaft cooperation place are provided with the second capillary groove, described the second waterproofOn groove, be provided with the second sealing ring.
Preferably, between described planet stent axial end and the axial end of described central gear, be provided with wear-resistant gasket.
Compared with prior art, the utlity model has following beneficial effect:
1, in the utility model, cancelled clutch, adopted bread shape magnet steel to form and do not wait air gap, and by stator ironCore forms eccentric throw with rotor center and strengthens maximum air gap and minimal air gap ratio, and the air gap of magnet centre is less,The air gap at pole tip place is larger, and the air gap flux density under magnet is distributed more close to sine wave, thereby greatlyReduce cogging torque, the groove forming between each adjacent iron teeth that teeth groove is stator core, and make to slide without clutchAdvance resistance significantly reduces, and improves motor stabilizing, reduces complete machine cost;
2, the rotor field spider in the utility model adopts integral type cold extrusion structure, central gear directly and rotor prop upFrame interference fit, reduces spare and accessory parts, and owing to adopting integral type cold extrusion structure, motor even density, improves movingBalance quality;
3, the motor in the utility model is cancelled stator aluminum frame structure, adopts two kinds of lamination structures, and it is fixed to fixThe structure assembly of son, on stator core, makes motor part more succinct;
4, the utility model replaces original clip spring structure by the axial end of planet stent with wear-resistant gasket, makes assemblingProcess is easier.
Brief description of the drawings
By reading the detailed description non-limiting example done with reference to the following drawings, of the present utility model otherIt is more obvious that feature, object and advantage will become:
Fig. 1 is cross-sectional view of the present utility model;
Fig. 2 is motor body internal structure schematic diagram of the present utility model.
In figure: 1 is that electric machine main shaft, 2 is that wheel hub end housing bearing, 3 is that wheel hub end housing, 4 is that flat key, 5 is planetSupport, 6 is that wear-resistant gasket, 7 is for stator core, 101 for magnet steel, 10 for rotor, 9 for taking turns hub shell, 8The first stator punching, 102 is that the second stator punching, 11 is that winding, 12 is for wheel hub shell bearing, 13 is for drawingLine, 14 be the first sealing ring, 15 for pin, 16 for insulated end cover, 17 for gear centered by rotor bearing, 18,19 is that planetary bearing, 20 is that planetary gear, 201 is that planet gear wheel, 201 is that planet pinion, 21 is internal toothCircle, 22 is that planet pin, 23 is the second sealing ring.
Detailed description of the invention
Below in conjunction with specific embodiment, the utility model is elaborated. Following examples will contribute to the skill of this areaArt personnel further understand the utility model, but do not limit in any form the utility model. It should be pointed out that thisThe those of ordinary skill in field, without departing from the concept of the premise utility, can also make some distortion andImprove. These all belong to protection domain of the present utility model.
In the present embodiment, the wheel hub motor that the utility model provides, is characterized in that, comprises electric machine main shaft 1, wheel hubEnd cap 3, wheel hub shell 7, motor body and planetary gear speed reducing mechanism;
Wherein, described wheel hub end housing 3 connects electric machine main shaft 1 by wheel hub end housing bearing 2; The described hub shell 7 one of taking turnsEnd connects described electric machine main shaft 1 by wheel hub shell bearing 12, and the other end connects described wheel hub end housing 3 and forms installation cavity;Described motor body and described planetary gear speed reducing mechanism are arranged in described installation cavity; Described motor body drives described planet to subtractSpeed mechanism rotates; Motor body comprises rotor field spider 8, magnet steel 9, stator core 10, winding 11, rotor bearing 17With insulated end cover 16; Described winding 11 connects described stator core 10 by described insulated end cover 16; Described rotor props upFrame 8 supports and is fixedly mounted on electric machine main shaft 1 by rotor bearing 17; Described magnet steel 9 is arranged on described rotor and props upOn the medial surface that the axial direction along electric machine main shaft 1 of frame 8 extends.
Described planetary gear speed reducing mechanism comprises planet stent 5, central gear 18, planetary gear 20, ring gear 21 and planetPin 22; Wherein, described planet stent 5 is arranged on electric machine main shaft 1 by flat key 4; Described central gear 18 is fixingOn the leading flank of described rotor field spider 8; Described planetary gear 20 is arranged on described planet pin 22 by planetary bearing 19On; One end of described planet pin 22 connects described planet stent 5; Described planetary gear 20 is duplicate gear, comprises and establishingPut planet gear wheel 201 and the planet pinion 202 that is arranged on rear end in rear end; Planet gear wheel 201 and centre toothWheel 18 engagements, planet pinion 202 engages with ring gear 21; Described ring gear 21 is arranged on described wheel hub end housing 3The axial direction along electric machine main shaft 1 extend medial surface on.
One side of described magnet steel 9 is convex-shaped arc surface, and relative another side is plane. The radian of described cambered surface is greater than 2/3π, is bread shape magnet steel, makes itself and stator core 10 air gap, the center of stator core and rotor center such as form notForm eccentric throw, add the unevenness of air gaps, thereby the cogging torque of motor is reduced greatly, and make without clutch slidingThe advance resistance of row significantly reduces, and improves motor stabilizing.
There is eccentric throw in the center of described stator core 10 center and rotor field spider 8. Described stator core 10 comprises logicalCross the first stator punching 101 and the second stator punching 102 that pin 15 is connected; Wherein, described the first stator punching 101Be arranged on electric machine main shaft 1 with described the second stator punching 102.
Described wheel hub end housing bearing 2 is provided with the first capillary groove with electric machine main shaft 1 cooperation place, on described the first capillary grooveBe provided with the first sealing ring 23. Described wheel hub shell bearing 12 is provided with the second capillary groove with electric machine main shaft 1 cooperation place,On described the second capillary groove, be provided with the second sealing ring 14. Described planet stent 5 axial ends and described central gearBetween 18 axial end, be provided with wear-resistant gasket 6.
Above specific embodiment of the utility model is described. It will be appreciated that, the utility model is notBe confined to above-mentioned specific implementations, those skilled in the art can make various distortion within the scope of the claimsOr amendment, this does not affect flesh and blood of the present utility model.
Claims (8)
1. a wheel hub motor, is characterized in that, comprises electric machine main shaft (1), wheel hub end housing (3), wheel hub shell (7), motor body and planetary gear speed reducing mechanism;
Wherein, described wheel hub end housing (3) connects electric machine main shaft (1) by wheel hub end housing bearing (2); Described hub shell (7) one end of taking turns connects described electric machine main shaft (1) by wheel hub shell bearing (12), and the other end connects described wheel hub end housing (3) and forms installation cavity;
Described motor body and described planetary gear speed reducing mechanism are arranged in described installation cavity; Described motor body drives described planetary gear speed reducing mechanism to rotate;
Motor body comprises rotor field spider (8), magnet steel (9), stator core (10), winding (11), rotor bearing (17) and insulated end cover (16);
Described winding (11) connects described stator core (10) by described insulated end cover (16); Described rotor field spider (8) supports and is arranged on electric machine main shaft (1) by rotor bearing (17); Described magnet steel (9) is arranged on the medial surface of the extension of the axial direction along electric machine main shaft (1) of described rotor field spider (8).
2. wheel hub motor according to claim 1, it is characterized in that, described planetary gear speed reducing mechanism comprises planet stent (5), central gear (18), planetary gear (20), ring gear (21) and planet pin (22);
Wherein, described planet stent (5) is arranged on electric machine main shaft (1) by flat key (4); Described central gear (18) is fixed on the leading flank of described rotor field spider (8);
Described planetary gear (20) is arranged on described planet pin (22) by planetary bearing (19); One end of described planet pin (22) connects described planet stent (5);
Described planetary gear (20) is duplicate gear, comprises the planet gear wheel (201) that is arranged on rear end and the planet pinion (202) that is arranged on rear end; Planet gear wheel (201) engages with central gear (18), and planet pinion (202) engages with ring gear (21);
Described ring gear (21) is fitted on the medial surface of the extension of the axial direction along electric machine main shaft (1) of described wheel hub end housing (3).
3. wheel hub motor according to claim 1, is characterized in that, described magnet steel (9) is bread shape.
4. wheel hub motor according to claim 1, is characterized in that, the center of the center of described stator core (10) and rotor field spider (8) exists eccentric throw.
5. wheel hub motor according to claim 1, is characterized in that, described stator core (10) comprises the first stator punching (101) and the second stator punching (102) that are connected by pin (15); Wherein, described the first stator punching (101) and described the second stator punching (102) are arranged on electric machine main shaft (1).
6. wheel hub motor according to claim 1, is characterized in that, described wheel hub end housing bearing (2) is provided with the first capillary groove with electric machine main shaft (1) cooperation place, is provided with the first sealing ring (23) on described the first capillary groove.
7. wheel hub motor according to claim 1, it is characterized in that, described wheel hub shell bearing (12) is provided with the second capillary groove with electric machine main shaft (1) cooperation place, is provided with the second sealing ring (14) on described the second capillary groove.
8. wheel hub motor according to claim 2, is characterized in that, between described planet stent (5) axial end and the axial end of described central gear (18), is provided with wear-resistant gasket (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520835250.7U CN205248972U (en) | 2015-10-26 | 2015-10-26 | Hub motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520835250.7U CN205248972U (en) | 2015-10-26 | 2015-10-26 | Hub motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205248972U true CN205248972U (en) | 2016-05-18 |
Family
ID=55948041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520835250.7U Active CN205248972U (en) | 2015-10-26 | 2015-10-26 | Hub motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205248972U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107017733A (en) * | 2017-06-07 | 2017-08-04 | 天津迪思科博科技发展有限公司 | micro hub motor |
| CN107465296A (en) * | 2017-07-31 | 2017-12-12 | 新安乃达驱动技术（上海）股份有限公司 | Dual drive hub motor structure and electric bicycle |
| CN108891252A (en) * | 2018-08-31 | 2018-11-27 | 扬州大学 | A kind of magnetic power-driven automobile with planet magnet wheel driving device |
| CN109309432A (en) * | 2018-10-09 | 2019-02-05 | 内蒙古聚能节能服务有限公司 | A kind of bindiny mechanism between Wheel type driving motor housing and wheel hub |
| CN109462307A (en) * | 2018-12-29 | 2019-03-12 | 无锡福美佳电子科技有限公司 | A kind of electric two-wheel vehicle electric machine structure |
| CN110112863A (en) * | 2019-03-19 | 2019-08-09 | 王召伟 | A kind of band concentric gear brushless motor |
| CN110126607A (en) * | 2019-05-05 | 2019-08-16 | 台州市金宇机电有限公司 | A kind of hanging motor driver in the side of battery-operated motor cycle |
| CN114204750A (en) * | 2022-01-11 | 2022-03-18 | 中磁动力设备(深圳)有限公司 | In-wheel motor and assembling method thereof |
-
2015
- 2015-10-26 CN CN201520835250.7U patent/CN205248972U/en active Active
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107017733A (en) * | 2017-06-07 | 2017-08-04 | 天津迪思科博科技发展有限公司 | micro hub motor |
| CN107017733B (en) * | 2017-06-07 | 2024-03-29 | 北京小悠出行科技集团有限公司 | Miniature hub motor |
| CN107465296A (en) * | 2017-07-31 | 2017-12-12 | 新安乃达驱动技术（上海）股份有限公司 | Dual drive hub motor structure and electric bicycle |
| CN107465296B (en) * | 2017-07-31 | 2023-10-17 | 新安乃达驱动技术（上海）股份有限公司 | Double-drive hub motor structure and electric bicycle |
| CN108891252A (en) * | 2018-08-31 | 2018-11-27 | 扬州大学 | A kind of magnetic power-driven automobile with planet magnet wheel driving device |
| CN109309432A (en) * | 2018-10-09 | 2019-02-05 | 内蒙古聚能节能服务有限公司 | A kind of bindiny mechanism between Wheel type driving motor housing and wheel hub |
| CN109462307A (en) * | 2018-12-29 | 2019-03-12 | 无锡福美佳电子科技有限公司 | A kind of electric two-wheel vehicle electric machine structure |
| CN109462307B (en) * | 2018-12-29 | 2023-08-25 | 无锡福美佳电子科技有限公司 | Motor structure for electric two-wheeled vehicle |
| CN110112863A (en) * | 2019-03-19 | 2019-08-09 | 王召伟 | A kind of band concentric gear brushless motor |
| CN110126607A (en) * | 2019-05-05 | 2019-08-16 | 台州市金宇机电有限公司 | A kind of hanging motor driver in the side of battery-operated motor cycle |
| CN114204750A (en) * | 2022-01-11 | 2022-03-18 | 中磁动力设备(深圳)有限公司 | In-wheel motor and assembling method thereof |
| CN114204750B (en) * | 2022-01-11 | 2023-08-08 | 中磁动力设备(深圳)有限公司 | Hub motor and assembly method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160617 Address after: 214196 Wuxi City, Xishan province Donggang Town Industrial Park Power Equipment Industrial Park Patentee after: Drive technology (Jiangsu) Co., Ltd. Address before: 201108 Minhang District City, Shanghai Road, No. 2060, 1-3 floor, 5 Patentee before: Xinan Naida Drive Technology (Shanghai) Co.,Ltd. |