CN212022891U - Middle-arranged driving mechanism of electric power-assisted bicycle - Google Patents
Middle-arranged driving mechanism of electric power-assisted bicycle Download PDFInfo
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- CN212022891U CN212022891U CN202020650056.2U CN202020650056U CN212022891U CN 212022891 U CN212022891 U CN 212022891U CN 202020650056 U CN202020650056 U CN 202020650056U CN 212022891 U CN212022891 U CN 212022891U
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Abstract
A middle-arranged driving mechanism of an electric power-assisted bicycle relates to the technical field of electric power assistance, a motor is connected with a first-stage gearbox end to end, the other end of the first-stage gearbox is vertically connected with a five-way gearbox, one end of a fluted disc sleeve in the five-way gearbox is connected with a fluted disc, the fluted disc sleeve is connected with a spiral bevel gear by a spiral bevel gear clutch, the spiral bevel gear is meshed with a driving bevel gear in the five-way gearbox, the driving bevel gear is connected with a planet carrier in the first-stage gearbox through a coupler, and a planet wheel on the planet carrier is meshed with a sun gear on a main shaft of the; the five-way transmission main shaft penetrates through the fluted disc sleeve and is in clutch and screwed connection by utilizing the five-way main shaft clutch and the bearing. Under the condition of keeping a small volume, the size and the power of the motor are independently adjusted, so that the adjustment of the output torque force is realized; the power-assisted riding function of the electric bicycle can be realized while the existing bicycle model design is kept as much as possible.
Description
Technical Field
The utility model relates to an electronic helping hand technical field, concretely relates to put actuating mechanism in electric power assisted bicycle.
Background
At present, the electric bicycle is divided into a hub motor and a middle motor due to different positions of the bicycle where the motor is located, and the middle motor is obviously superior to the hub motor in recent development due to the advantages of better performance, better structure and the like.
The hub motor is a motor which is directly arranged in the middle of a bicycle hub and directly drives the hub to rotate, and generally adopts direct drive of the motor or one-stage planetary gear speed reduction output due to structural and size limitations, so that the output torque is limited.
The motor with a gearbox system is arranged at a five-way position of the bicycle, a fluted disc of the bicycle is driven by the output end of the gearbox of the motor, the fluted disc drives a flywheel of a rear wheel to drive the bicycle to run through a chain, and generally the motor is provided with one-stage or two-stage speed reduction output, so that the output torque is stronger.
The structure of the middle motor in the current market can be divided into a coaxial structure and an off-axis structure: the coaxial mid-motor structure means that the motor, the gearbox and the power output shaft are concentric structures; the different-shaft built-in motor structure generally means that a motor and a first-stage gearbox are parallel to a second-stage speed change and power output shaft, and the middle of the two-stage gearbox is driven by a big gear or a small gear or a belt.
Due to structural reasons, the sizes of the two middle motors are generally larger, the coaxial middle motor is generally in a cylindrical shape structure, the diameter of the coaxial middle motor can reach about 140mm, the different-shaft middle motor is generally in a similar rectangular or similar trapezoidal shape structure, and the length and the width of the different-shaft middle motor can also reach about 170mm by 90mm or even 235mm by 138 mm. The diameter of the normal bicycle five-way is only 40mm-45mm, so the existing middle motor structure is overlarge in size for the bicycle, great inconvenience is brought to the structural design of the existing bicycle, and the shape design is not harmonious. Improvements are needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a reasonable-design middle-arranged driving mechanism of an electric power-assisted bicycle, which can realize the same large torque output as the existing similar products while ensuring the small size of the products, and can independently adjust the size and the power of a motor under the condition of keeping smaller volume according to project requirements, thereby realizing the adjustment of output torque; the power-assisted riding function of the electric bicycle can be realized while the existing bicycle model design is kept as much as possible.
In order to achieve the above purpose, the utility model adopts the following technical proposal: the gear box comprises a motor, a first-stage gear box, a five-way gear box and a fluted disc; the motor is connected with the first-stage gearbox end to end, the other end of the first-stage gearbox is vertically connected with the five-way gearbox, one end of a fluted disc sleeve in the five-way gearbox is connected with a fluted disc, the fluted disc sleeve is connected with a spiral bevel gear by a spiral bevel gear clutch, the spiral bevel gear is meshed with a driving bevel gear in the five-way gearbox, the driving bevel gear is connected with a planet carrier in the first-stage gearbox through a coupler, and a planet gear on the planet carrier is meshed with a sun gear on a main shaft of the motor; the five-way transmission main shaft is arranged in the fluted disc sleeve in a penetrating way and is in clutch and screwed connection by utilizing a five-way main shaft clutch and a bearing; and a sensor is arranged on a main shaft of the five-way gearbox in the five-way gearbox and is electrically connected with the controller.
Further, the diameter of the five-way gearbox is 60-90 mm.
Further, the speed ratio of the first-stage gearbox is 1:3 to 1: 10.
Further, the speed ratio of the five-way gearbox is 1: 3-1: 6.
After the structure is adopted, the beneficial effects of the utility model are that: the utility model provides a middle-arranged driving mechanism of an electric power-assisted bicycle, a motor, a first-stage gearbox and a five-way main shaft are vertical longitudinal structures, and the motor is connected with the five-way gearbox through a coupling of the first-stage gearbox (a planetary gearbox); the coupler is connected with a driving bevel gear in the five-way gearbox, the driving bevel gear drives a spiral bevel gear, and the spiral bevel gear is driven and clutched with the fluted disc sleeve through a clutch and a bearing so as to realize pure electric driving of the fluted disc; the five-way gearbox main shaft is arranged in the fluted disc sleeve in a penetrating manner, and the five-way main shaft clutch and the bearing realize driving and clutch so as to realize pure manpower driving of the fluted disc; a sensor is arranged on a main shaft of the five-way gearbox in the five-way gearbox, the sensor is electrically connected with a controller, and the sensor is used for calculating the manpower driving frequency and force feedback data to realize electric power and manpower hybrid driving.
Description of the drawings:
fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic diagram of the internal structure of the present invention.
Description of reference numerals:
the device comprises a motor 1, a sun gear 1-1, a primary gearbox 2, a planet wheel 2-1, a planet carrier 2-2, a five-way gearbox 3, a driving bevel gear 3-1, a fluted disc sleeve 3-2, a spiral bevel gear 3-3, a spiral bevel gear clutch 3-4, a five-way gearbox spindle 3-5, a five-way spindle clutch 3-6, a sensor 3-7 and a fluted disc 4.
The specific implementation mode is as follows:
the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1 and fig. 2, the following technical solutions are adopted in the present embodiment: the device comprises a motor 1, a first-stage gearbox 2, a five-way gearbox 3 and a fluted disc 4; the motor 1 is connected with the first-stage gearbox 2 end to end (the shell of the motor 1 and the shell of the first-stage gearbox 2 are riveted and fixed by screws and are on the same straight line), the first-stage gearbox 2 is a planetary gearbox, the speed ratio can be adjusted according to requirements, the adjustment range is 1:3 to 1:10, the other end of the first-stage gearbox 2 is vertically connected with a five-way gearbox 3 (the shell of the first-stage gearbox 2 and the shell of the five-way gearbox 3 are riveted and fixed by screws), the diameter of the five-way gearbox 3 is 60-90mm, one end of a fluted disc sleeve 3-2 in the five-way gearbox 3 is fixedly sleeved with a fluted disc 4 arranged outside the five-way gearbox 3, the fluted disc sleeve 3-2 is connected with a spiral bevel gear 3-3 by a spiral bevel gear clutch 3-4, the spiral bevel gear 3-3 is meshed with a driving bevel gear 3-1, the driving bevel gear 3-1 is connected with a planet carrier 2-2 in a first-stage gearbox 2 through a coupler, a planet gear 2-1 on the planet carrier 2-2 is meshed with a sun gear 1-1 on a main shaft of the motor 1 (the sun gear 1-1 drives the planet gear in the planet carrier 2-2 to realize first-stage speed change, the speed ratio can be adjusted according to needs, the adjustment range is 1:3 to 1: 10; the driving bevel gear 3-1 drives the spiral bevel gear 3-3 to realize second-stage speed change, the speed ratio can be adjusted according to needs, and the adjustment range is 1:3 to 1: 6); a main shaft 3-5 of the five-way gearbox penetrates through the fluted disc sleeve 3-2 and is in clutch rotary connection by utilizing a five-way main shaft clutch 3-6 and a bearing; and a sensor 3-7 is arranged on a main shaft 3-5 of the five-way gearbox in the five-way gearbox 3, and the sensor 3-7 is electrically connected with the controller.
The working principle of the specific embodiment is as follows: the motor 1 and the first-stage gearbox 2 are arranged in a lower tube of a bicycle frame, the five-way gearbox 3 is mounted at the five-way position of the bicycle through bolts, the motor 1 works to drive the sun gear 1-1 to rotate, the sun gear 1-1 drives the planet gear 2-1 and the planet carrier 2-2, the planet carrier 2-2 drives the driving bevel gear 3-1 to rotate through a coupler, the driving bevel gear 3-1 is meshed with the spiral bevel gear 3-3 to rotate, the spiral bevel gear 3-3 drives the fluted disc sleeve 3-2 and the fluted disc 4 to rotate through the spiral bevel gear clutch 3-4, and the driving and the clutch between the fluted disc sleeve 3-2 and the spiral bevel gear 3-3 are realized, so that the purpose of pure electric driving is achieved; the five-way gearbox main shaft 3-5 is driven to rotate by manpower, the five-way gearbox main shaft 3-5 drives the fluted disc sleeve 3-2 and the fluted disc 4 by utilizing the five-way main shaft clutch 3-6, the driving and the clutch between the fluted disc sleeve 3-2 and the five-way gearbox main shaft 3-5 are realized, and the purpose of pure manpower driving is achieved; the rotating speed of the motor 1 is controlled by a controller in cooperation with sensors 3-7 (rotating speed sensors or torque sensors) arranged in the five-way transmission 3 so as to realize pure electric drive, or human-electric hybrid drive or pure human drive.
After adopting above-mentioned structure, this embodiment's beneficial effect is as follows:
1. by adopting the connecting structure of the longitudinally-arranged motor and the five-way gearbox, the volume of a middle-arranged motor (the motor, the first-stage gearbox and a main shaft of the gearbox are in a vertical longitudinally-arranged structure) can be greatly reduced, the diameter of the traditional five-way motor is generally 40mm, the size of the traditional middle-arranged motor is about 140mm, and the diameter of the five-way motor in the scheme is 78mm and can be adjusted within 60mm-90mm according to requirements;
2. compared with the existing mid-set motor, the five-way transmission can realize the same large torque output under the condition of keeping the volume of the five-way transmission smaller, and the motor can independently adjust the size and the power of the motor under the condition of keeping the volume smaller according to project requirements, thereby realizing the adjustment of the output torque;
3. for the existing bicycles and electric bicycles, the power-assisted riding function of the electric bicycle can be realized while the traditional bicycle model design is kept as much as possible.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (4)
1. The utility model provides a put actuating mechanism in electric bicycle which characterized in that: the device comprises a motor (1), a first-stage gearbox (2), a five-way gearbox (3) and a fluted disc (4); the motor (1) is connected with the first-stage gearbox (2) end to end, the other end of the first-stage gearbox (2) is vertically connected with a five-way gearbox (3), one end of a fluted disc sleeve (3-2) in the five-way gearbox (3) is connected with a fluted disc (4), the fluted disc sleeve (3-2) is connected with a spiral bevel gear (3-3) by a spiral bevel gear clutch (3-4), the spiral bevel gear (3-3) is meshed with a driving bevel gear (3-1) in the five-way gearbox (3), the driving bevel gear (3-1) is connected with a planet carrier (2-2) in the first-stage gearbox (2) through a coupler, and a planet gear (2-1) on the planet carrier (2-2) is meshed with a sun gear (1-1) on a main shaft of the motor (1); a main shaft (3-5) of the five-way gearbox is arranged in the fluted disc sleeve (3-2) in a penetrating way and is in clutch and screwed connection by utilizing a five-way main shaft clutch (3-6) and a bearing; a sensor (3-7) is arranged on a main shaft (3-5) of the five-way gearbox in the five-way gearbox (3), and the sensor (3-7) is electrically connected with the controller.
2. The middle-mounted driving mechanism of the electric power-assisted bicycle according to claim 1, characterized in that: the diameter of the five-way gearbox (3) is 60-90 mm.
3. The middle-mounted driving mechanism of the electric power-assisted bicycle according to claim 1, characterized in that: the speed ratio of the first-stage gearbox (2) is 1:3 to 1: 10.
4. The middle-mounted driving mechanism of the electric power-assisted bicycle according to claim 1, characterized in that: the speed ratio of the five-way gearbox (3) is 1:3 to 1: 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020650056.2U CN212022891U (en) | 2020-04-26 | 2020-04-26 | Middle-arranged driving mechanism of electric power-assisted bicycle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020650056.2U CN212022891U (en) | 2020-04-26 | 2020-04-26 | Middle-arranged driving mechanism of electric power-assisted bicycle |
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| CN212022891U true CN212022891U (en) | 2020-11-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113187863A (en) * | 2021-05-21 | 2021-07-30 | 常熟鑫利茗动力科技有限公司 | Power auxiliary system |
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2020
- 2020-04-26 CN CN202020650056.2U patent/CN212022891U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113187863A (en) * | 2021-05-21 | 2021-07-30 | 常熟鑫利茗动力科技有限公司 | Power auxiliary system |
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