CN201090675Y - Gear reduction wheel drive device - Google Patents

Gear reduction wheel drive device Download PDF

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Publication number
CN201090675Y
CN201090675Y CNU2007201147297U CN200720114729U CN201090675Y CN 201090675 Y CN201090675 Y CN 201090675Y CN U2007201147297 U CNU2007201147297 U CN U2007201147297U CN 200720114729 U CN200720114729 U CN 200720114729U CN 201090675 Y CN201090675 Y CN 201090675Y
Authority
CN
China
Prior art keywords
gear
cap
hub
drive
bearing
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.)
Expired - Fee Related
Application number
CNU2007201147297U
Other languages
Chinese (zh)
Inventor
朱明龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Oulin Electrical and Mechanical Co., Ltd.
Original Assignee
朱明龙
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 朱明龙 filed Critical 朱明龙
Priority to CNU2007201147297U priority Critical patent/CN201090675Y/en
Application granted granted Critical
Publication of CN201090675Y publication Critical patent/CN201090675Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

A hub drive device for a wheel decelerating gear mainly comprises a hub and a hub bearing shaft; a rotor of a DC motor arranged in the hub is fixed with a torque tube sleeved on the bearing shaft and the power output end of the torque tube is provided with a pinion. The utility model is characterized in that the pinion is meshed with a bull gear of a coaxial double gear; the pinion of the coaxial double gear is meshed with an output gear which is concentric with the pinion; the output shaft drives a right end cap to rotate; a left end cap and the right end cap of the drive device are fixedly connected with an inner ring of the hub. The utility model adopts a two-stage decelerating transmission with concentric input and output gears and is small in size, which can reduce the weight of the vehicle and has greater loading capacity under the condition of same power from an electromotor; a gear chamber is sealed and can be filled with butter so as to achieve good lubrication; the gear has low abrasion and noise; the structure of the hub drive device is simple in structure, which simplifies assembling process and reduces cost.

Description

A kind of gear reduction hub drive device
Technical field
The utility model relates to electric driver, particularly a kind of gear reduction hub drive device that is used for electric bicycle or battery-operated motor cycle.
Background technique
The motor wheel hub drive unit of electric bicycle of the prior art or battery-operated motor cycle, more have two kinds of structural types, and a kind of is the side that motor is installed in wheel shaft, and the transmission device volume is big, and mechanical parts are many, complex structure, poor lubrication; Second kind is that motor shaft is concentric with wheel hub, rotate by the ring gear drive hub by the planetary reduction gear transmission device, this structure radial dimension is bigger, it is high that the requirement of concentricity requires processing and installation precision, the cost of production height, fast for the Nylon gear wear that noise-decreasing adopts, working life is short.
The model utility content
The utility model purpose be improve bearing capacity for electric bicycle or battery-operated motor cycle provide a kind of, reduce mechanism, reduced volume, reduce cost, the gear reduction hub drive device of long service life.
The utility model indication gear reduction hub drive device, mainly comprise wheel hub and wheel hub back shaft, the rotor DC machine tubular axis outer with being enclosed within back shaft that is arranged in the wheel hub is connected, the clutch end of tubular axis is shaped on small gear, it is characterized in that the gearwheel engagement of this small gear and coaxial two-gang gear, the small gear of coaxial two-gang gear and output gear engagement, output gear is concentric with above-mentioned small gear, output gear drives right end cap and rotates, and the inner ring of the left end cap of drive unit and right end cap and wheel hub is connected.
Between back shaft and tubular axis, output gear, two bearings are housed respectively, a bearing is housed between the right end cap of back shaft and drive unit, back-up ring is arranged between each bearing every putting.
The above-mentioned bearing that is contained between output gear and the gear chamber right end cap is the stuffing box bearing with seal ring.
Double crosslinking gear shaft passes through the needle bearing bearing between motor room's right end cap and gear chamber right end cap.
Motor room's right end cap and motor casing are made one.
The gear chamber right end cap can be installed a grease nipple.
The utility model and existing electric bicycle or battery-operated motor cycle drive unit are compared advantage and are: adopt input and export concentric double reduction transmission, volume is little, especially radial dimension is little, the car body weight reduction, and bearing capacity is big under the same motor power situation; Gear chamber sealing, but filling butter, lubricating condition is good, and gear wear is low, and noise is low; Structure is comparatively simple, and packaging technology is simplified, and cost reduces.
Description of drawings
Fig. 1 is the utility model embodiment's a structural representation
Fig. 2 is an output gear structural representation among Fig. 1
Fig. 3 is the A-A sectional view of Fig. 2.
Embodiment
With reference to Fig. 1, the direct current generator in the utility model is a prior art, comprises motor stator, rotor 12.The utlity model has motor room and reduction gear chamber, the motor room is made up of motor left end cap 11, motor casing 15, motor right end cap 16, and the motor right end cap also can be made one with motor casing 15.The reduction gear chamber is made up of motor right end cap 16, gear chamber right end cap 3, and double crosslinking gear shaft passes through the needle bearing bearing between motor room's right end cap 16 and gear chamber right end cap 3.Back shaft 7 is positioned at the wheel hub medial axis, the rotor DC machine 12 that is arranged in the wheel hub inner ring 1 is fastening with tubular axis 13 interference fit that are enclosed within outside the back shaft 7, every putting two bearings 18 are housed by back-up ring 19 between back shaft and the tubular axis, make rotor 12 can drive tubular axis 13 and rotate.The clutch end of tubular axis 13 is shaped on small gear 6, small gear 6 constitutes the one-level deceleration with gearwheel 2 engagements of coaxial two-gang gear, the small gear 4 of coaxial two-gang gear constitutes double reductions with output gear 5 engagements. and output gear 5 is concentric with above-mentioned small gear 4, also promptly concentric with back shaft 7, make concentricity obtain nature and guarantee processing and easy to assembly.Make as Fig. 2, spline 51 structures shown in Figure 3 the outer end of output gear 5, it cooperates with hub splines 8 on being packed in drive unit right end cap 9, the left end cap 10 of drive unit and right end cap 9 are connected with the inner ring 1 of wheel hub, thereby output gear 5 drive hubs are rotated.Two bearings also are housed between back shaft 7 and output gear 5, back-up ring are arranged every putting between above-mentioned each bearing.The bearing that is contained between output gear 5 and the gear chamber right end cap 3 is the stuffing box bearing with seal ring.
For making metal duplicate gear, output gear 5 in the gear chamber lubricated good, increase the service life, effectively reduce noise, a grease nipple 17 can be installed on gear chamber right end cap 3, because the bearing that is contained between output gear 5 and the gear chamber right end cap 3 is the stuffing box bearing with seal ring.Can make and keep more lubricant oil in the gear chamber.

Claims (6)

1. gear reduction hub drive device that is used for electric bicycle or battery-operated motor cycle, mainly comprise wheel hub and wheel hub back shaft (7), rotor DC machine (12) tubular axis (13) outer with being enclosed within back shaft that is arranged in the wheel hub is connected, the clutch end of tubular axis is shaped on small gear (6), it is characterized in that the small gear (6) and the gearwheel (2) of coaxial two-gang gear mesh, small gear of coaxial two-gang gear (4) and output gear (5) engagement, output gear (5) is concentric with small gear (6), output gear (5) drives right end cap (9) and rotates, and left end cap of drive unit (10) and right end cap (9) are connected with the inner ring (1) of wheel hub.
2. gear reduction hub drive device according to claim 1, it is characterized in that between back shaft (7) and tubular axis (13), the output gear (5) two bearings being housed respectively, a bearing is housed between the right end cap of back shaft and drive unit, back-up ring is arranged between each bearing every putting.
3. gear reduction hub drive device according to claim 2 is characterized in that the bearing that is contained between output gear (5) and the gear chamber right end cap (3) is the stuffing box bearing with seal ring.
4. according to claim 1 or 3 described gear reduction hub drive devices, it is characterized in that double crosslinking gear shaft passes through the needle bearing bearing between motor room's right end cap (16) and gear chamber right end cap (3).
5. gear reduction hub drive device according to claim 4 is characterized in that motor room's right end cap (16) can make one with motor casing (15).
6. gear reduction hub drive device according to claim 4 is characterized in that gear chamber right end cap (3) can install a grease nipple (17).
CNU2007201147297U 2007-09-10 2007-09-10 Gear reduction wheel drive device Expired - Fee Related CN201090675Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2007201147297U CN201090675Y (en) 2007-09-10 2007-09-10 Gear reduction wheel drive device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2007201147297U CN201090675Y (en) 2007-09-10 2007-09-10 Gear reduction wheel drive device

Publications (1)

Publication Number Publication Date
CN201090675Y true CN201090675Y (en) 2008-07-23

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2007201147297U Expired - Fee Related CN201090675Y (en) 2007-09-10 2007-09-10 Gear reduction wheel drive device

Country Status (1)

Country Link
CN (1) CN201090675Y (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105922860A (en) * 2016-06-22 2016-09-07 杭州拜特电驱动技术有限公司 Horizontal type symmetric multiple-dead axle electric driving wheel and operation equipment using horizontal type symmetric multiple-dead axle electric driving wheel
CN110203058A (en) * 2019-05-31 2019-09-06 贵州航天林泉电机有限公司 A kind of wheel hub electric drive assembly of parallel shaft (speed) reducer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105922860A (en) * 2016-06-22 2016-09-07 杭州拜特电驱动技术有限公司 Horizontal type symmetric multiple-dead axle electric driving wheel and operation equipment using horizontal type symmetric multiple-dead axle electric driving wheel
CN105922860B (en) * 2016-06-22 2019-11-19 杭州拜特电驱动技术有限公司 Horizontal symmetrical more dead axle electric driving wheels and its operating equipment using the driving wheel
CN110203058A (en) * 2019-05-31 2019-09-06 贵州航天林泉电机有限公司 A kind of wheel hub electric drive assembly of parallel shaft (speed) reducer

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
TR01 Transfer of patent right

Effective date of registration: 20100413

Address after: 247000 Anhui city of Chizhou Province Economic and Technological Development Zone Jinan Industrial Park

Patentee after: Anhui Oulin Electrical and Mechanical Co., Ltd.

Address before: 317507 Zhejiang city of Wenling Province Wang Ruo Zhen Lian Cheng Lu (West) No. 88 Industry Company

Patentee before: Zhu Minglong

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 317507 HEYE CO., LTD., NO.88, LIANCHENG ROAD (WEST), RUOHENG TOWN, WENLING CITY, ZHEJIANG PROVINCE TO: 247000 JIN AN INDUSTRIAL PARK, ECONOMIC AND TECHNOLOGICAL DEVELOPMENT ZONE, CHIZHOU CITY, ANHUI PROVINCE

ASS Succession or assignment of patent right

Owner name: ANHUI OULIN ELECTRICAL CO., LTD.

Free format text: FORMER OWNER: ZHU MINGLONG

Effective date: 20100413

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20080723

Termination date: 20150910

EXPY Termination of patent right or utility model