CN202790346U - Harmonic reducer of electric bicycle drive - Google Patents
Harmonic reducer of electric bicycle drive Download PDFInfo
- Publication number
- CN202790346U CN202790346U CN201220411622XU CN201220411622U CN202790346U CN 202790346 U CN202790346 U CN 202790346U CN 201220411622X U CN201220411622X U CN 201220411622XU CN 201220411622 U CN201220411622 U CN 201220411622U CN 202790346 U CN202790346 U CN 202790346U
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- CN
- China
- Prior art keywords
- harmonic
- flexbile gear
- outer ring
- output shaft
- harmonic wave
- 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 - Lifetime
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H49/00—Other gearings
- F16H49/001—Wave gearings, e.g. harmonic drive transmissions
Abstract
The utility model discloses a harmonic reducer of an electric bicycle drive. The harmonic reducer comprises a shell, a harmonic generator, a flexspline axle sleeve, a harmonic flexspline and a harmonic circular spline, wherein the harmonic generator, the flexspline axle sleeve and the harmonic flexspline are sequentially sleeved and positioned in the shell, one end of the harmonic flexspline is arranged on an outer ring of the harmonic generator through a bearing, the harmonic circular spline is fixedly arranged on an inner ring of the shell and is positioned on the outer ring of one end of the harmonic flexspline, the inner ring of one end of the flexspline axle sleeve is arranged on the outer ring of one end of the harmonic generator through the bearing, the other end of the flexspline axle sleeve is arranged on the inner ring of a harmonic flexspline axle diameter section, the harmonic reducer further comprises an output shaft, the output shaft is sleeved on the outer ring of the harmonic flexspline axle diameter section, one end face of the output shaft is fixedly connected with the end face of the harmonic flexspline through a hinge pin and a screw, and the output shaft and the outer ring on the other end are respectively connected with the inner ring of the shell and the inner ring of the opening end of the shell through the bearings. The harmonic reducer is used for overcoming the defects of a conventional harmonic reducer, the harmonic flexspline axle diameter section is prevented from being broken, the service life of the reducer is prolonged, and the riding safety of a bicycle is ensured.
Description
Technical field
The utility model relates to a kind of harmonic speed reducer of electric bicycle driver.
Background technique
Electric bicycle is with regard to its drive motor, motor De Amount decides rotating speed and is divided three classes, be high-speed electric expreess locomotive, middle speed motor and slowspeed machine; it is higher that electric machine Amount decides rotating speed, its volume is less, weight is lighter, efficient is higher, cost is lower, but general electrical salf-walking Trucks is low-speed running, then needs Pei Tao Minus speed device as adopting high-speed electric expreess locomotive, and retarder De Minus speed ratio, volume, efficient, cost are one of deciding factors of bicycle driver performance, price.Electrical salf-walking Trucks adopts slowspeed machine directly to drive mostly at present, does not need mechanical reduction gear, and it is with low content of technology, efficient is low, cost is high, volume is large, Heavy Weight.Speed motor during electric bicycle has adopted in a large number in recent years, supporting row star tooth wheel Minus speed, performance increases.But take a broad view of at present the outer electronic bicycle of state Inner also No the employing high-speed electric expreess locomotive is arranged, supporting large Minus speed as the electric bicycle driver, has limited the development of electric bicycle than the fast device of Minus.
General electric bicycle driver is the drive motor of being located at the bicycle live axle, and when driver was mid-, drive motor drove the bicycle operation by sprocket wheel, and driver also can be preposition or rearmounted, thereby drives front-wheel or trailing wheel rotation.Usually drive motor is realized slowing down by harmonic speed reducer, satisfies the requirement of riding of bicycle.General harmonic speed reducer comprises that mainly being located at housing interior harmonic generator, flexbile gear axle, harmonic wave flexbile gear and harmonic wave just takes turns, drive motor rotor and the just coaxial setting of wheel of harmonic generator, flexbile gear axle, harmonic wave flexbile gear and harmonic wave, harmonic generator one end connects the drive motor rotor, harmonic wave flexbile gear one end is by bearing socket harmonic generator outer ring, flexbile gear axle one end inner ring is located at the harmonic generator the other end by bearing, harmonic wave flexbile gear diameter of axle section inner ring is located in flexbile gear axle diameter of axle outer ring, and harmonic wave flexbile gear diameter of axle section moves ahead as the force-output shaft driving bicycle of retarder.Use through reality, behind the certain milimeter number of cycling, harmonic wave flexbile gear diameter of axle section fracture causes decelerator trouble, has reduced the working life of retarder, and has had certain potential safety hazard.Trace it to its cause, mainly be that harmonic wave flexbile gear diameter of axle section stress is concentrated, due to the fatigue of materials.Therefore there is certain defective in traditional harmonic speed reducer structure.
Summary of the invention
Technical problem to be solved in the utility model is the harmonic speed reducer of electric bicycle driver, this harmonic speed reducer has overcome the defective of traditional harmonic speed reducer, avoid the fracture of harmonic wave flexbile gear diameter of axle section, in the working life of having improved retarder, guaranteed the riding safety of bicycle.
For solving the problems of the technologies described above, the harmonic speed reducer of the utility model electric bicycle driver comprises housing, harmonic generator, the flexbile gear axle sleeve, harmonic wave flexbile gear and harmonic wave are just taken turns, described harmonic generator, flexbile gear axle sleeve and harmonic wave flexbile gear are socketed successively and are positioned at described housing, described harmonic wave flexbile gear one end is located at described harmonic generator outer ring by bearing, described harmonic wave just wheel is fixed at described housing inner ring and is positioned at described harmonic wave flexbile gear one end outer ring, described flexbile gear axle sleeve one end inner ring is located at described harmonic generator one end outer ring by bearing, the described flexbile gear axle sleeve the other end is located at described harmonic wave flexbile gear diameter of axle section inner ring, this harmonic speed reducer also comprises force-output shaft, described force-output shaft is sheathed on described harmonic wave flexbile gear diameter of axle section outer ring and an end end face is fixedly connected with described harmonic wave flexbile gear end face by bearing pin with screw, described force-output shaft outer ring connects described housing inner ring by bearing, and described force-output shaft the other end outer ring connects described housing opening end inner ring by bearing.
Further, the bearing between above-mentioned force-output shaft outer ring and the housing inner ring is angular contact ball bearing.
Further, the bearing between above-mentioned force-output shaft the other end outer ring and the housing opening end inner ring is deep groove ball bearing.
Because the harmonic speed reducer of the utility model electric bicycle driver has adopted technique scheme, be that this harmonic speed reducer comprises housing, harmonic generator, the flexbile gear axle sleeve, harmonic wave flexbile gear and harmonic wave are just taken turns, harmonic generator, flexbile gear axle sleeve and harmonic wave flexbile gear are socketed successively and are positioned at housing, harmonic wave flexbile gear one end is located at the harmonic generator outer ring by bearing, harmonic wave just wheel is fixed at the housing inner ring and is positioned at harmonic wave flexbile gear one end outer ring, flexbile gear axle sleeve one end inner ring is located at harmonic generator one end outer ring by bearing, the flexbile gear axle sleeve the other end is located at harmonic wave flexbile gear diameter of axle section inner ring, this harmonic speed reducer also comprises force-output shaft, force-output shaft is sheathed on harmonic wave flexbile gear diameter of axle section outer ring and an end end face is fixedly connected with harmonic wave flexbile gear end face by bearing pin with screw, the force-output shaft outer ring connects the housing inner ring by bearing, and force-output shaft the other end outer ring connects housing opening end inner ring by bearing.This harmonic speed reducer has overcome the defective of traditional harmonic speed reducer, avoids the fracture of harmonic wave flexbile gear diameter of axle section, in the working life of having improved retarder, has guaranteed the riding safety of bicycle.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and embodiments:
Fig. 1 is the harmonic speed reducer structural representation of the utility model electric bicycle driver.
Embodiment
As shown in Figure 1, the harmonic speed reducer of the utility model electric bicycle driver comprises housing 1, harmonic generator 2, flexbile gear axle sleeve 5, harmonic wave flexbile gear 3 and harmonic wave be wheel 4 just, described harmonic generator 2, flexbile gear axle sleeve 5 and harmonic wave flexbile gear 3 are socketed successively and are positioned at described housing 1, described harmonic wave flexbile gear 3 one ends are located at described harmonic generator 2 outer rings by bearing 7, described harmonic wave just wheel 4 is fixed at described housing 1 inner ring and is positioned at described harmonic wave flexbile gear 3 one end outer rings, described flexbile gear axle sleeve 5 one end inner rings are located at described harmonic generator 2 one end outer rings by bearing 8, described flexbile gear axle sleeve 5 the other ends are located at described harmonic wave flexbile gear 3 diameter of axle sections 31 inner rings, this harmonic speed reducer also comprises force-output shaft 6, described force-output shaft 6 is sheathed on described harmonic wave flexbile gear 3 diameter of axle sections 31 outer rings and an end end face is fixedly connected with described harmonic wave flexbile gear 3 end faces by bearing pin 10 with screw 9, described force-output shaft 6 outer rings connect described housing 1 inner ring by bearing 11, and described force-output shaft 6 the other end outer rings connect described housing 1 opening end inner ring by bearing 12.
Further, the bearing 11 between above-mentioned force-output shaft 6 outer rings and housing 1 inner ring is angular contact ball bearings.
Further, the bearing 12 between above-mentioned force-output shaft 6 the other end outer rings and the housing 1 opening end inner ring is deep groove ball bearings.
This harmonic speed reducer has overcome the fracture of traditional harmonic speed reducer harmonic wave flexbile gear diameter of axle section by increasing force-output shaft, avoided that harmonic wave flexbile gear diameter of axle section stress is concentrated, the phenomenon of fatigue of materials; Drive motor is passed to harmonic generator by rotor with rotating force, harmonic generator and harmonic wave just wheel are passed to rotating force the harmonic wave flexbile gear and play decelerating effect, the flexbile gear axle sleeve plays the effect of support and transition harmonic wave flexbile gear, harmonic wave flexbile gear diameter of axle section outer ring sets out mechanical axis and connecting end surface adopts uniform screw to be fixedly connected with bearing pin, it is whole that harmonic wave flexbile gear and force-output shaft are consisted of, between force-output shaft and housing inner ring and the housing opening end inner ring bearing is set respectively, improve the reliability that force-output shaft rotates, force-output shaft is by the sprocket wheel of mounted in medium of bicycle, front-wheel rotating shaft or trailing wheel rotating shaft drive bicycle and move ahead, and reach the purpose that drives bicycle.Replace harmonic wave flexbile gear diameter of axle section as the actuator of bicycle by force-output shaft in this harmonic speed reducer, overcome the defective that harmonic wave flexbile gear diameter of axle section directly drives, effectively avoided the fracture of harmonic wave flexbile gear diameter of axle section, improve the working life of this harmonic speed reducer, guaranteed the riding safety of electric bicycle.
Claims (3)
1. the harmonic speed reducer of an electric bicycle driver, comprise housing, harmonic generator, the flexbile gear axle sleeve, harmonic wave flexbile gear and harmonic wave are just taken turns, described harmonic generator, flexbile gear axle sleeve and harmonic wave flexbile gear are socketed successively and are positioned at described housing, described harmonic wave flexbile gear one end is located at described harmonic generator outer ring by bearing, described harmonic wave just wheel is fixed at described housing inner ring and is positioned at described harmonic wave flexbile gear one end outer ring, described flexbile gear axle sleeve one end inner ring is located at described harmonic generator one end outer ring by bearing, the described flexbile gear axle sleeve the other end is located at described harmonic wave flexbile gear diameter of axle section inner ring, it is characterized in that: this harmonic speed reducer also comprises force-output shaft, described force-output shaft is sheathed on described harmonic wave flexbile gear diameter of axle section outer ring and an end end face is fixedly connected with described harmonic wave flexbile gear end face by bearing pin with screw, described force-output shaft outer ring connects described housing inner ring by bearing, and described force-output shaft the other end outer ring connects described housing opening end inner ring by bearing.
2. the harmonic speed reducer of electric bicycle driver according to claim 1, it is characterized in that: the bearing between described force-output shaft outer ring and the housing inner ring is angular contact ball bearing.
3. the harmonic speed reducer of electric bicycle driver according to claim 1, it is characterized in that: the bearing between described force-output shaft the other end outer ring and the housing opening end inner ring is deep groove ball bearing.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220411622XU CN202790346U (en) | 2012-08-20 | 2012-08-20 | Harmonic reducer of electric bicycle drive |
| TW102203516U TWM468598U (en) | 2012-08-20 | 2013-02-23 | Harmonic decelerator for electric bicycle driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220411622XU CN202790346U (en) | 2012-08-20 | 2012-08-20 | Harmonic reducer of electric bicycle drive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202790346U true CN202790346U (en) | 2013-03-13 |
Family
ID=47817612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220411622XU Expired - Lifetime CN202790346U (en) | 2012-08-20 | 2012-08-20 | Harmonic reducer of electric bicycle drive |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN202790346U (en) |
| TW (1) | TWM468598U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438157A (en) * | 2013-09-09 | 2013-12-11 | 南京信息工程大学 | Bi-arc harmonic reducer |
| CN103438158A (en) * | 2013-09-09 | 2013-12-11 | 南京信息工程大学 | Compact harmonic speed reducer |
| CN103629306A (en) * | 2012-08-20 | 2014-03-12 | 刘旭训 | Harmonic reducer of electric bicycle driver |
| CN103754318A (en) * | 2014-01-26 | 2014-04-30 | 浙江来福谐波传动股份有限公司 | Power assembly mechanism for electric moped scooter |
| CN103754317A (en) * | 2014-01-17 | 2014-04-30 | 南京信息工程大学 | Driving mechanism of moped scooter |
| CN103962423A (en) * | 2014-04-09 | 2014-08-06 | 西安交通大学 | Servo direct-driven harmonic drive spiral bending machine |
| EP3009340A1 (en) * | 2014-10-17 | 2016-04-20 | Tektro Technology Corporation | Derailleur |
| TWI574881B (en) * | 2014-10-17 | 2017-03-21 | 彥豪金屬工業股份有限公司 | Derailleur assembly |
-
2012
- 2012-08-20 CN CN201220411622XU patent/CN202790346U/en not_active Expired - Lifetime
-
2013
- 2013-02-23 TW TW102203516U patent/TWM468598U/en unknown
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103629306A (en) * | 2012-08-20 | 2014-03-12 | 刘旭训 | Harmonic reducer of electric bicycle driver |
| CN103629306B (en) * | 2012-08-20 | 2016-03-30 | 刘旭训 | The harmonic speed reducer of electric bicycle driver |
| CN103438157A (en) * | 2013-09-09 | 2013-12-11 | 南京信息工程大学 | Bi-arc harmonic reducer |
| CN103438158A (en) * | 2013-09-09 | 2013-12-11 | 南京信息工程大学 | Compact harmonic speed reducer |
| CN103754317A (en) * | 2014-01-17 | 2014-04-30 | 南京信息工程大学 | Driving mechanism of moped scooter |
| CN103754317B (en) * | 2014-01-17 | 2016-06-29 | 南京信息工程大学 | A kind of Moped Scooter driving mechanism |
| CN103754318A (en) * | 2014-01-26 | 2014-04-30 | 浙江来福谐波传动股份有限公司 | Power assembly mechanism for electric moped scooter |
| CN103962423A (en) * | 2014-04-09 | 2014-08-06 | 西安交通大学 | Servo direct-driven harmonic drive spiral bending machine |
| CN103962423B (en) * | 2014-04-09 | 2016-01-20 | 西安交通大学 | A kind of servo direct driving type harmonic drive spiral bender |
| EP3009340A1 (en) * | 2014-10-17 | 2016-04-20 | Tektro Technology Corporation | Derailleur |
| TWI574881B (en) * | 2014-10-17 | 2017-03-21 | 彥豪金屬工業股份有限公司 | Derailleur assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| TWM468598U (en) | 2013-12-21 |
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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: 20130313 Effective date of abandoning: 20160330 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |