CN102442395A - High-speed power assisting motor with hollow middle shaft for pedal electric bicycle - Google Patents
High-speed power assisting motor with hollow middle shaft for pedal electric bicycle Download PDFInfo
- Publication number
- CN102442395A CN102442395A CN201110346752XA CN201110346752A CN102442395A CN 102442395 A CN102442395 A CN 102442395A CN 201110346752X A CN201110346752X A CN 201110346752XA CN 201110346752 A CN201110346752 A CN 201110346752A CN 102442395 A CN102442395 A CN 102442395A
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- shaft
- sprocket shaft
- motor
- pedal
- output shaft
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Abstract
The invention discloses a high-speed power assisting motor with a hollow middle shaft for a pedal electric bicycle, which comprises a motor main body, a sprocket shaft and a planetary gear reductor, wherein the output shaft of the motor main body adopts a hollow structure; a transmission gear is arranged at the circumference at the output end of the output shaft, so as to rotationally mount the sprocket shaft in an inner hole of the output shaft; the planetary gear reductor is arranged between the output shaft and the sprocket shaft; the transmission gear is a sun gear of the planetary gear reductor; the planetary gear reductor comprises the sun gear, a planetary gear, a planetary rack and a planetary ring gear; the planetary rack is connected with the sleeve of the sprocket shaft through an overrunning clutch; and a pedal middle shaft is arranged in the sprocket shaft. Integrating the reductor and the sleeve of the sprocket shaft, the motor can be coaxially mounted with the pedal middle shaft, so that the transmission mechanism of the motor is optimized, and the spatial mounting position is reduced. As the planetary gear reductor is adopted, the low-rotational speed large-torque output of the high-speed power assisting motor is realized, which meets riding requirements.
Description
(1) technical field:
The present invention relates to Electrical Bicycle and use motor, be specially a kind of pedal and electric bicycle quill shaft high servo motor.
(2) background technology:
Bicycle-Electrical Bicycle has been experienced in the development of bicycle--the process of pedal and electric bicycle-electric boosted bicycle.As the electric boosted bicycle of newest fruits be actually with foot-operated be main; And motor is as the auxiliary booster type bicycle driven of carrying out, and this bicycle carries out the 10km distance when riding under no electric boosted situation, and its speed, physical consumption are all just the same with ordinary bicycle; Under electric boosted state; When riding, motor only responds foot-operated stress signal and gives corresponding power-assisted promotion, and reduces bicyclist's physical consumption.
For preventing the drawback of magnetic force line cutting resistance, the used motor of prior electric power-assisted bicycle is different from the big hub-type motor of tradition; But independently be arranged near the high servo motor the foot-operated axis; Being connected through synchronous belt between high servo motor and the foot-operated axis, is the patent of invention of 200810030374.2 " a kind of electric power-assisted bike pedal moment sensing system " like application number, and the high servo motor is installed on the vehicle frame behind foot-operated axis; Therefore body frame structure for automotive must particular design to adapt to the installation site of high servo motor; Cause the commonality of vehicle frame poor, manufacturing cost increases, and the car load profile is not attractive in appearance.
(3) summary of the invention:
The objective of the invention is for provide a kind of can with the coaxial mounted pedal and electric bicycle of foot-operated axis quill shaft high servo motor.
Can realize the pedal and electric bicycle quill shaft high servo motor of above-mentioned purpose, comprise the motor main body, different is also to comprise sprocket shaft and planet wheel decelerator; The output shaft of said motor main body is a quill shaft; Said sprocket shaft is a shell-like, and the mouth circumference of said output shaft is provided with transmission gear, and said sprocket shaft rotates the endoporus that is installed on output shaft; Said planet wheel decelerator is located between motor output shaft and the sprocket shaft, and said driving cog is the sun gear of planet wheel decelerator.
Said planet wheel decelerator comprises sun gear, planetary wheel, pinion carrier and satellite gear inner circular tooth; Said pinion carrier is connected with sprocket shaft through overriding clutch; The power of motor output shaft is passed to sprocket shaft through planet wheel decelerator, realizes low rotation speed large torque output.
Said sprocket shaft passes through bearing installation in the endoporus of output shaft.
The foot-operated axis of the built-in rotation of said sprocket shaft.
Advantage of the present invention:
1, pedal and electric bicycle quill shaft high servo motor of the present invention is integrated with retarder and sprocket shaft, can with the same axle mounting of foot-operated axis, optimized the transmission device of motor, reduced the space mounting position.
2, the present invention adopts the satellite gear speed reduction gearing, realizes the low rotation speed large torque output of high servo motor, has satisfied the requirement of riding.
(4) description of drawings:
Fig. 1 is the perspective view of one embodiment of the present invention.
Fig. 2 is the inner structure scheme drawing of Fig. 1 embodiment.
Figure number sign: 1, output shaft; 2, sprocket shaft; 3, transmission gear; 4, planetary wheel; 5, pinion carrier; 6, planet torus tooth; 7, foot-operated axis; 8, bearing; 9, chain drum.
(5) specific embodiment:
Combine accompanying drawing further to set forth technical scheme of the present invention at present:
Pedal and electric bicycle quill shaft high servo motor of the present invention comprises motor main body, sprocket shaft 2 and planet wheel decelerator; The output shaft 1 of motor main body is hollow form (forming through offering axle center hole in the inside of output shaft 1); Output shaft 1 stretches out on the circumference of mouth of motor main body one side crankshaft drive gear 3 is set; Shell-like sprocket shaft 2 is installed in the axle center hole of output shaft 1 through bearing 8; The coaxial chain drum 9 that is connected on the sprocket shaft 2 in the output shaft 1 mouth outside, said planet wheel decelerator is located on the motor main body side of output shaft 1 mouth one side, like Fig. 1, shown in Figure 2.
Said planet wheel decelerator comprises sun gear, planetary wheel 4, pinion carrier 5 and planet torus tooth 6; Said transmission gear 3 is sun wheel; Planet torus tooth 6 is installed in motor main body side; Planetary wheel 4 is uniformly distributed with and is engaged between transmission gear 3 and the planet torus tooth 6, and the mounting bracket of planetary wheel 4 is that said pinion carrier 5 is connected with sprocket shaft 2 through overriding clutch, like Fig. 1, shown in Figure 2.
Foot-operated axis 7 is installed through bearing 8 in the inside of said sprocket shaft 2, like Fig. 1, shown in Figure 2.
Said transmission gear 3 considered loading strengths, according to sprocket shaft 2 rotating speeds between 170nim/m～201nim/m, load on about 75kg, torque designs at 8～12n/m; Transmission gear 3 usefulness alloy carbon steel 40cr make, and modulus gets final product between 1～1.5.
The metallurgical accurate compacting sintering technological forming of said planetary wheel 4 available iron original washing powder foams reduces cost of manufacture again when guaranteeing geometric accuracy; Said planet torus tooth 6 can adopt the mold pressing of the PA66/25 of Du Pont engineering plastics to process, and its advantage is that resistance to abrasion is strong, and elasticity is good, when effectively improving friction drag, significantly reduces running noise again; Said sprocket shaft 2 can adopt alloy carbon steel 40cr to be made.
When the transmission gear 3 of motor output shaft 1 rotated, planet wheel decelerator was through overriding clutch drive sprocket axle 2, and with 9 quilt while of the chain drum driven in rotation of sprocket shaft 2 coaxial close-fittings, the chain drum 9 of low speed rotation drives the chain drive trailing wheels moves ahead bicycle.
During 9 rotations of said chain drum and foot-operated axis 7 be in each other not interference state.
Claims (4)
1. pedal and electric bicycle quill shaft high servo motor; Comprise the motor main body; It is characterized in that: also comprise sprocket shaft (2) and planet wheel decelerator, the output shaft of said motor main body (1) is a hollow form, and said sprocket shaft (2) is a shell-like; The mouth circumference of output shaft (1) is provided with driving cog (3); Said sprocket shaft (2) rotates the endoporus that is installed on output shaft (1), and said planet wheel decelerator is located between output shaft (1) and the sprocket shaft (2), and said driving cog (3) is the sun gear of planet wheel decelerator.
2. pedal and electric bicycle quill shaft high servo motor according to claim 1; It is characterized in that: said planet wheel decelerator comprises sun gear, planetary wheel (4), pinion carrier (5) and planet torus tooth (6), and said pinion carrier (5) is through overriding clutch connection chain wheel shaft (2).
3. pedal and electric bicycle quill shaft high servo motor according to claim 1 and 2, it is characterized in that: said sprocket shaft (2) is installed on the endoporus of output shaft (1) through bearing (8).
4. pedal and electric bicycle quill shaft high servo motor according to claim 1 and 2 is characterized in that: the foot-operated axis (7) of the built-in rotation of said sprocket shaft (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110346752XA CN102442395A (en) | 2011-11-04 | 2011-11-04 | High-speed power assisting motor with hollow middle shaft for pedal electric bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110346752XA CN102442395A (en) | 2011-11-04 | 2011-11-04 | High-speed power assisting motor with hollow middle shaft for pedal electric bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102442395A true CN102442395A (en) | 2012-05-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110346752XA Pending CN102442395A (en) | 2011-11-04 | 2011-11-04 | High-speed power assisting motor with hollow middle shaft for pedal electric bicycle |
Country Status (1)
| Country | Link |
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| CN (1) | CN102442395A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106945777A (en) * | 2017-04-19 | 2017-07-14 | 常州机电职业技术学院 | Human-electricity hybrid power driving device |
| US10464633B2 (en) | 2015-06-19 | 2019-11-05 | Robert Bosch Gmbh | Electric vehicle and driving system for electric vehicle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6196347B1 (en) * | 1998-09-22 | 2001-03-06 | Industrial Technology Research Institute | Power transmission and pedal force sensing system for an electric bicycle |
| US20020014366A1 (en) * | 1999-01-20 | 2002-02-07 | Turner James R. | Electric bicycle and methods |
| CN1754774A (en) * | 2004-09-27 | 2006-04-05 | 捷安特(中国)有限公司 | Electric bicycle central drive coaxial power set |
| CN2817193Y (en) * | 2005-09-06 | 2006-09-13 | 周雪峰 | Co-center shaft middle mounted motor for electric vehicle |
| CN200948868Y (en) * | 2006-09-14 | 2007-09-19 | 秦德国 | Electric human power driving device in middle axle of electric vehicle |
| CN202320696U (en) * | 2011-11-04 | 2012-07-11 | 陈戈平 | High-speed power-assisted motor for hollow shaft of pedaling electric bicycle |
-
2011
- 2011-11-04 CN CN201110346752XA patent/CN102442395A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6196347B1 (en) * | 1998-09-22 | 2001-03-06 | Industrial Technology Research Institute | Power transmission and pedal force sensing system for an electric bicycle |
| US20020014366A1 (en) * | 1999-01-20 | 2002-02-07 | Turner James R. | Electric bicycle and methods |
| CN1754774A (en) * | 2004-09-27 | 2006-04-05 | 捷安特(中国)有限公司 | Electric bicycle central drive coaxial power set |
| CN2817193Y (en) * | 2005-09-06 | 2006-09-13 | 周雪峰 | Co-center shaft middle mounted motor for electric vehicle |
| CN200948868Y (en) * | 2006-09-14 | 2007-09-19 | 秦德国 | Electric human power driving device in middle axle of electric vehicle |
| CN202320696U (en) * | 2011-11-04 | 2012-07-11 | 陈戈平 | High-speed power-assisted motor for hollow shaft of pedaling electric bicycle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10464633B2 (en) | 2015-06-19 | 2019-11-05 | Robert Bosch Gmbh | Electric vehicle and driving system for electric vehicle |
| CN106945777A (en) * | 2017-04-19 | 2017-07-14 | 常州机电职业技术学院 | Human-electricity hybrid power driving device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120509 |