CN102442399B - Built-in transmission device of pedal electric power-assisted bicycle without manual speed regulation - Google Patents
Built-in transmission device of pedal electric power-assisted bicycle without manual speed regulation Download PDFInfo
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- CN102442399B CN102442399B CN201110346846.7A CN201110346846A CN102442399B CN 102442399 B CN102442399 B CN 102442399B CN 201110346846 A CN201110346846 A CN 201110346846A CN 102442399 B CN102442399 B CN 102442399B
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Abstract
The invention discloses a built-in transmission device of a pedal electric power-assisted bicycle without manual speed regulation. The device comprises a pedal transmission mechanism, a motor transmission mechanism and a pedal moment induction mechanism. The motor transmission mechanism comprises a hollow output shaft of a hollow-shaft high-speed power-assisted motor, a motor planet wheel decelerator and a sprocket wheel shaft. The pedal transmission mechanism comprises a pedal central shaft, a central shaft planet wheel decelerator and a sprocket wheel shaft. The sprocket wheel shaft is rotatably arranged in the output shaft. The pedal central shaft is rotatably arranged in the shaft sleeve of the sprocket wheel shaft. The motor planet wheel decelerator is arranged at one side of the output shaft of the hollow-shaft high-speed power-assisted motor. The central shaft planet wheel decelerator is arranged at the other side of the hollow-shaft high-speed power-assisted motor. The device disclosed by the invention has the characteristics of being concise and intensive in structure, good and reliable in performance, good in process and the like. A motor power-assisted system and physical drive are organically linked but cannot be interfered with each other. The transmission efficiency is very high.
Description
(1) technical field:
The present invention relates to transmission of electric bicycle, be specially a kind of without manual governing pedal and electric morpet built-in transmission device.
(2) background technology:
The development experience of bicycle bicycle-Electrical Bicycle--the process of pedal electric bicycle-electric boosted bicycle.It is main being actually to ride as the electric boosted bicycle of newest fruits, and motor is as the auxiliary bicycle that carries out booster type driving, this bicycle is carrying out 10km distance without electric boosted in the situation that while riding, its speed, physical consumption are all just the same with ordinary bicycle, under electric boosted state, while riding, motor only responds foot-operated stress signal and gives corresponding power-assisted promotion, thereby reduces bicyclist's physical consumption.
For the resistance that prevents that cutting magnetic line from producing, existing electric boosted bicycle motor used, be different from traditional big hub formula motor, but be independent of the high-speed power assisting motor of rotation shaft of wheel, as application number be 200810030374.2 the patent of invention of " a kind of electric power-assisted bike pedal moment sensing system ", high-speed power assisting motor is installed on vehicle frame in foot-operated axis postposition, pedal moment induction mechanism by toothed belt transmission between high-speed power assisting motor and foot-operated axis is connected, pedal moment induction mechanism is the epicyclic transmission mechanism with inductor, inductor is responded to foot-operated running moment size and moment high low signal is sent to microelectronics treater, the rotative power matching by the output of microelectronics treater control high-speed power assisting motor and moment size.
Described " a kind of electric power-assisted bike pedal moment sensing system " patent of invention is because the dispersion of transmission device is not concentrated, thereby cause the complexity of transmission device, and body frame structure for automotive must particular design to adapt to the installation site of high-speed power assisting motor, cause the commonality of vehicle frame poor, manufacturing cost increases, and car load profile is not attractive in appearance.
(3) summary of the invention:
The object of this invention is to provide that a kind of integrated pedal transmission mechanism, motor transmission mechanism and pedal moment induction mechanism be integrated without manual governing pedal and electric morpet built-in transmission device.
Can realize above-mentioned purpose without manual governing pedal and electric morpet built-in transmission device, comprise pedal transmission mechanism and motor transmission mechanism and pedal moment induction mechanism, difference is that described motor transmission mechanism comprises high-speed power assisting motor with hollow middle shaft, motor planetary wheel decelerator and sprocket shaft, described pedal transmission mechanism comprises foot-operated axis, axis planet wheel decelerator and sprocket shaft (sharing with motor transmission mechanism), described sprocket shaft rotates and is placed in the output shaft of high-speed power assisting motor with hollow middle shaft hollow, described foot-operated axis rotates and is placed in the axle sleeve of sprocket shaft, described motor planetary wheel decelerator is located at output shaft one side of high-speed power assisting motor with hollow middle shaft, described axis planet wheel decelerator is located at the opposite side of high-speed power assisting motor with hollow middle shaft.
Described motor planetary wheel decelerator comprises motor sun gear, motor planetary gear, motor planetary frame and motor planetary wheel internal gear, described motor sun gear is with the mouth that is located in output shaft, described motor planetary gear is uniform to be engaged between motor sun gear and motor planetary wheel internal gear, and described motor planetary frame is by motor overriding clutch connection chain wheel shaft; Described axis planet wheel decelerator comprises axis sun gear, axis planetary wheel, axis pinion carrier and axis satellite gear internal gear, described axis pinion carrier connects foot-operated axis by axis overriding clutch, axis planetary wheel is uniform to be engaged between axis sun gear and axis satellite gear internal gear, and the coaxial and sprocket shaft of axis sun gear is connected.
The output shaft mouth of described high-speed power assisting motor with hollow middle shaft is gear type, also be the sun gear in motor planetary change-speed box, when the output shaft of motor rotates, drive motor planet wheel decelerator, motor planetary frame after slowing down is with low speed rotation, motor planetary frame, by motor overriding clutch driving chain wheel shaft, is driven rotation with the chain drum of the coaxial close-fitting of sprocket shaft simultaneously, and the sprocket wheel of rotation moves ahead vehicle by chain drive trailing wheel.
Owing to being provided with axis overriding clutch between sprocket shaft and foot-operated axis, in the time that chain drum rotates and foot-operated axis in interference state not mutually, in the time that chain drum is subject to trailing wheel load stress, pass sprocket shaft back by motor overriding clutch, sprocket shaft is passed to axis overriding clutch by axis planet wheel decelerator, axis overriding clutch and foot-operated axis are one-way clutch interlocks, be subject to as long as the applied stress that foot-operated axis receives can overcome chain drum the resistance that trailing wheel produces, vehicle just travels forward.
A kind of structure of described pedal moment induction mechanism comprises sensing rolling disc, swing arm, sensor and microelectronics treater, sensing rolling disc with retracing spring and axis satellite gear internal gear coaxially arrange, the circumference of axis satellite gear internal gear has the amount of spin that is less than 15 degree, and uniformly on its outer shroud circumference offer the local driving cog corresponding with swing arm around the uniform setting of sensing rolling disc, the oscillating axle axle tooth engagement of each local driving cog and corresponding swing arm, the sector of each swing arm engages with the fluted disc of sensing rolling disc, microelectronics treater connects sensor and the high-speed power assisting motor with hollow middle shaft of induction sensing turn disc amount.
In the time riding, the stressed rotation of axis satellite gear internal gear, local driving cog i.e. synchronous rotation, the local driving cog rotating drives swing arm to swing, the sector oscillating quantity of swing arm obtains multiple amplifies, and the sector of swing arm drives fluted disc to make sensing rolling disc overcome retracing spring power and rotates, and the amount of spin that sensing rolling disc is exaggerated is flutterred and caught by sensor, carry out Real-time Collection thereby realized the linear torque signals that sensor produces when riding, and ensure the precision gathering.
Under riding condition, the working state signal of high-speed power assisting motor with hollow middle shaft is to be sent by microelectronics treater (electric machine controller) by pedal moment induction mechanism, the sensing electricity signal kinetic potential frequently of microelectronics treater, the axis overriding clutch acquisition of signal mechanism that source and foot-operated axis link mutually, and the stress signal linear dynamic range starting depends on the size of bicyclist to the bicycle pedals application of force.Only riding when electric boosted by physical efficiency, owing to being provided with motor overriding clutch between high-speed power assisting motor with hollow middle shaft and sprocket shaft, moment of torsion by foot-operated axis transmission is separated by motor overriding clutch, high-speed power assisting motor with hollow middle shaft remains static completely, the resistance of having avoided drive motor rotor to produce, rides vehicle free and relaxed.
The elastic stress capable of regulating of the retracing spring of sensing rolling disc, when different elastic stress values can make foot-operated riding, the application of force of assist motor, than producing linear change, really realizes the pattern of riding of man-machine integration while riding Moped Scooter.
A kind of form of described sensor comprises inductor and inductive head, and inductor is located at the deep-slotted chip breaker two ends of offering on sensing rolling disc, and inductive head is located in deep-slotted chip breaker.
Advantage of the present invention:
1, the present invention has the features such as structure is tersely concentrated, excellent performance is reliable, and manufacturability is good without manual governing pedal and electric morpet built-in transmission device; Drive organically but non-interference of motor force aid system and physical efficiency in addition, so there is high driving efficiency.
2, pedal moment induction mechanism of the present invention can make the mechanical kinetic potential multiplying power of foot-operated and torque sensor linear signal collection point realize geometric series amplification, sensor signal is precisely steady, for electric machine control processing terminal (microelectronics treater) provides accurate moment variable signal, carry out intelligent power-assisted.
(4) brief description of the drawings:
Fig. 1 is the structural representation of one embodiment of the present invention.
Fig. 2 is the inner structure schematic diagram of Fig. 1 embodiment.
Fig. 3 is the sectional perspective constructional drawing of pedal moment induction mechanism in Fig. 1 embodiment.
Fig. 4 is the sectional perspective constructional drawing (from another visual angle) of pedal moment induction mechanism in Fig. 1 embodiment.
Fig. 5 is the site plan of sensing rolling disc and inductor in the pedal moment induction mechanism of Fig. 3, Fig. 4.
Figure number mark: 1, high-speed power assisting motor with hollow middle shaft; 2, sprocket shaft; 3, foot-operated axis; 4, output shaft; 5, motor sun gear; 6, motor planetary gear; 7, motor planetary frame; 8, motor planetary wheel internal gear; 9, axis sun gear; 10, axis planetary wheel; 11, axis pinion carrier; 12, axis satellite gear internal gear; 13, sensing rolling disc; 14, swing arm; 15, inductor; 16, inductive head.
(5) detailed description of the invention:
Now by reference to the accompanying drawings technical scheme of the present invention is described further:
The present invention without manual governing pedal and electric morpet built-in transmission device integrated pedal transmission mechanism, motor transmission mechanism and pedal moment induction mechanism be integrated, as shown in Figure 1 and Figure 2.
Main body of the present invention is high-speed power assisting motor with hollow middle shaft 1, the output shaft 4 of high-speed power assisting motor with hollow middle shaft 1 is hollow structure, described motor transmission mechanism is mainly by output shaft 4, motor planetary wheel decelerator and sprocket shaft 2 form, sleeve-like sprocket shaft 2 is installed in output shaft 4 by bearing, sprocket shaft 2 ends of stretching out output shaft 4 mouths are chain drum installation site, described motor planetary wheel decelerator is located between output shaft 4 and sprocket shaft 2, motor planetary wheel decelerator comprises motor sun gear 5, motor planetary gear 6, motor planetary frame 7 and motor planetary wheel internal gear 8, motor planetary wheel internal gear 8 inlay cards are in high-speed power assisting motor with hollow middle shaft 1 side shell frame, motor sun gear 5 is coaxially fixed on output shaft 4 mouths, three uniform being engaged between motor sun gear 5 and motor planetary wheel internal gear 8 of motor planetary gear 6, the mounting bracket of motor planetary gear 6 is that motor planetary frame 7 is installed and is connected with sprocket shaft 2 by motor overriding clutch, as Fig. 1, shown in Fig. 2.
Described pedal transmission mechanism is by riding axis 3, axis planet wheel decelerator and sprocket shaft 2 (sharing with motor transmission mechanism) form, foot-operated axis 3 runs through by bearing in the axle sleeve that is installed on sprocket shaft 2, axis planet wheel decelerator is located at high-speed power assisting motor with hollow middle shaft 1 opposite side, axis planet wheel decelerator is mainly by axis sun gear 9, axis planetary wheel 10, axis pinion carrier 11 and axis satellite gear internal gear 12 form, the mounting bracket of axis planetary wheel 10 is that axis pinion carrier 11 connects foot-operated axis 3 by axis overriding clutch, three uniform being engaged between axis sun gear 9 and axis satellite gear internal gear 12 of axis planetary wheel 10, axis satellite gear internal gear 12 passes through draw-in groove inlay card in the bayonet socket of high-speed power assisting motor with hollow middle shaft 1 side shell frame, draw-in groove circumferential length is greater than bayonet socket, ensure that axis satellite gear internal gear 12 has the amount of spin that is less than 15 degree on circumference, as Fig. 1, Fig. 2, Fig. 3, shown in Fig. 4.
Described pedal moment induction mechanism comprises sensing rolling disc 13, fan-shaped swing arm 14, sensor and microelectronics treater, described sensing rolling disc 13 coaxially arranges in axis satellite gear internal gear 12 outsides, uniform three at the circumferencial direction of sensing rolling disc 13 of described swing arms 14, the local driving cog of indent of offering on axis satellite gear internal gear 12 outer ring surfaces of the rotating shaft position correspondence of swing arm 14, each local driving cog engages with corresponding swing arm 14 rotating shaft axle teeth, the covering of the fan tooth of each swing arm 14 engages with the fluted disc of sensing rolling disc 13, described sensing rolling disc 13 has the return function by retracing spring control, described sensor is interactional inductor 15 and inductive head 16, on sensing rolling disc 13, offer a concentric deep-slotted chip breaker, inductor 15 is located at deep-slotted chip breaker two, inductive head 16 is set up in deep-slotted chip breaker by propping up, described microelectronics treater by connection between sensor and high-speed power assisting motor with hollow middle shaft 1, as shown in Fig. 3, Fig. 4, Fig. 5.
Working process of the present invention:
1, only ride with foot-operated.
Close microelectronics treater, cut off the startup of high-speed power assisting motor with hollow middle shaft 1.Foot-operated axis 3 rotates, rotate by axis planet wheel decelerator driving chain wheel shaft 2, chain drum on sprocket shaft 2 is rotated vehicle is moved ahead by chain-driving trailing wheel, ride in shape process, high-speed power assisting motor with hollow middle shaft 1 remains static, the resistance of having avoided drive motor rotor to produce, vehicle is ridden free and relaxed.
2, need power-assisted to ride.
Open microelectronics treater, connect the startup of high-speed power assisting motor with hollow middle shaft 1.Foot-operated axis 3 rotates, and rotates by axis planet wheel decelerator driving chain wheel shaft 2, and the chain drum on sprocket shaft 2 is rotated vehicle is moved ahead by chain-driving trailing wheel.Meanwhile, the axis satellite gear internal gear 12 of axis planet wheel decelerator produces circumferential displacement, swing arm 14 swings, drive sensing rolling disc 13 to rotate, distance between inductor 15 and inductive head 16 changes and produces electric signal, electric signal is after microelectronics treater is processed, send instruction to high-speed power assisting motor with hollow middle shaft 1, the output shaft 4 of high-speed power assisting motor with hollow middle shaft 1 rotates, output shaft 4 is by motor planetary wheel decelerator driving chain wheel shaft 2, the torque of the power torque of high-speed power assisting motor with hollow middle shaft 1 and foot-operated axis 3 is superimposed on sprocket shaft 2, thereby make sprocket shaft 2 obtain larger torque, vehicle is ridden shape fast.
The power torque size of high-speed power assisting motor with hollow middle shaft 1 is determined by the application of force size of riding axis 3, step at a slow speed foot-operated axis 3, distance of reaction between inductor 15 and inductive head 16 is less, the power torque that high-speed power assisting motor with hollow middle shaft 1 is sent is smaller, improve the speed of stepping on foot-operated axis 3, distance of reaction between inductor 15 and inductive head 16 increases, and the power torque that high-speed power assisting motor with hollow middle shaft 1 is sent increases.The application of force of foot-operated axis 3 reduces, due to the effect of retracing spring, sensing rolling disc 13 and axis satellite gear internal gear 12 return simultaneously, the distance of reaction between inductor 15 and inductive head 16 reduces, and the power torque that high-speed power assisting motor with hollow middle shaft 1 is sent reduces thereupon.
Claims (1)
1. without manual governing pedal and electric morpet built-in transmission device, comprise pedal transmission mechanism and motor transmission mechanism and pedal moment induction mechanism, it is characterized in that: described motor transmission mechanism comprises the output shaft (4) of high-speed power assisting motor with hollow middle shaft (1) hollow, motor planetary wheel decelerator and sprocket shaft (2), described pedal transmission mechanism comprises foot-operated axis (3), axis planet wheel decelerator and sprocket shaft (2), described sprocket shaft (2) rotates and is placed in output shaft (4), described foot-operated axis (3) rotates and is placed in the axle sleeve of sprocket shaft (2), described motor planetary wheel decelerator is located at output shaft (4) one sides of high-speed power assisting motor with hollow middle shaft (1), described axis planet wheel decelerator is located at the opposite side of high-speed power assisting motor with hollow middle shaft (1), described motor planetary wheel decelerator comprises motor sun gear (5), motor planetary gear (6), motor planetary frame (7) and motor planetary wheel internal gear (8), described motor sun gear (5) is with the mouth that is located in output shaft (4), described motor planetary gear (6) is uniform to be engaged between motor sun gear (5) and motor planetary wheel internal gear (8), and described motor planetary frame (7) is by motor overriding clutch connection chain wheel shaft (2), described axis planet wheel decelerator comprises axis sun gear (9), axis planetary wheel (10), axis pinion carrier (11) and axis satellite gear internal gear (12), described axis pinion carrier (11) connects foot-operated axis (3) by axis overriding clutch, axis planetary wheel (10) is uniform to be engaged between axis sun gear (9) and axis satellite gear internal gear (12), and the coaxial and sprocket shaft (2) of axis sun gear (9) is connected, described pedal moment induction mechanism comprises sensing rolling disc (13), swing arm (14), sensor and microelectronics treater, sensing rolling disc (13) with retracing spring coaxially arranges with axis satellite gear internal gear (12), the circumference of axis satellite gear internal gear (12) has the amount of spin that is less than 15 degree, and uniformly on its outer shroud circumference offer local driving cog, swing arm (14) is around the uniform setting of sensing rolling disc (13), corresponding and the engagement of the balance staff axle tooth of each local driving cog and each swing arm (14), the sector of each swing arm (14) engages with the fluted disc of sensing rolling disc (13), microelectronics treater connects sensor and the high-speed power assisting motor with hollow middle shaft (1) of induction sensing rolling disc (13) amount of spin, described sensor comprises inductor (15) and inductive head (16), and inductor (15) is located at the deep-slotted chip breaker two ends of offering on sensing rolling disc (13), and inductive head (16) is located in deep-slotted chip breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110346846.7A CN102442399B (en) | 2011-11-04 | 2011-11-04 | Built-in transmission device of pedal electric power-assisted bicycle without manual speed regulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110346846.7A CN102442399B (en) | 2011-11-04 | 2011-11-04 | Built-in transmission device of pedal electric power-assisted bicycle without manual speed regulation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102442399A CN102442399A (en) | 2012-05-09 |
| CN102442399B true CN102442399B (en) | 2014-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110346846.7A Expired - Fee Related CN102442399B (en) | 2011-11-04 | 2011-11-04 | Built-in transmission device of pedal electric power-assisted bicycle without manual speed regulation |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011089559A1 (en) * | 2011-12-22 | 2013-06-27 | Robert Bosch Gmbh | Crank drive for bicycle, particularly electric bicycle, has tread shaft for mounting two foot treadles to free ends of tread shaft, driven wheel for power transmission to wheel of bicycle, and planetary gearbox |
| CN102745298B (en) * | 2012-07-11 | 2015-04-22 | 天津比沃科技有限公司 | Centrally-mounted drive system of electric bicycle |
| CN104085491A (en) * | 2014-07-06 | 2014-10-08 | 李强 | Automatic bicycle electric power-assisting system achieving transmission through middle shaft (crankset) of bicycle |
| CN106592464B (en) * | 2017-03-13 | 2022-04-08 | 深圳市西莫罗智能科技有限公司 | Novel swing gate with double coaxial cores |
| CN107571960B (en) * | 2017-10-09 | 2022-07-12 | 天津迪思科博科技发展有限公司 | Torque detection transmission device and electric bicycle middle motor applying same |
| TWI738117B (en) * | 2019-11-15 | 2021-09-01 | 大陸商珠海市鈞興機電有限公司 | Harmonic drive system for pedal electric cycle |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0832816A1 (en) * | 1996-09-26 | 1998-04-01 | Mitsubishi Heavy Industries, Ltd. | Driving unit for electric motor driven bicycle |
| US6196347B1 (en) * | 1998-09-22 | 2001-03-06 | Industrial Technology Research Institute | Power transmission and pedal force sensing system for an electric bicycle |
| CN1754774A (en) * | 2004-09-27 | 2006-04-05 | 捷安特(中国)有限公司 | Electric bicycle central drive coaxial power set |
| CN202295201U (en) * | 2011-11-04 | 2012-07-04 | 陈戈平 | Middle transmission device for electric power-assisted bicycle without manual speed regulating pedal |
-
2011
- 2011-11-04 CN CN201110346846.7A patent/CN102442399B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0832816A1 (en) * | 1996-09-26 | 1998-04-01 | Mitsubishi Heavy Industries, Ltd. | Driving unit for electric motor driven bicycle |
| US6196347B1 (en) * | 1998-09-22 | 2001-03-06 | Industrial Technology Research Institute | Power transmission and pedal force sensing system for an electric bicycle |
| CN1754774A (en) * | 2004-09-27 | 2006-04-05 | 捷安特(中国)有限公司 | Electric bicycle central drive coaxial power set |
| CN202295201U (en) * | 2011-11-04 | 2012-07-04 | 陈戈平 | Middle transmission device for electric power-assisted bicycle without manual speed regulating pedal |
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| CN102442399A (en) | 2012-05-09 |
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