CN212637809U - Rear wheel electric power transmission - Google Patents
Rear wheel electric power transmission Download PDFInfo
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- CN212637809U CN212637809U CN202021435543.3U CN202021435543U CN212637809U CN 212637809 U CN212637809 U CN 212637809U CN 202021435543 U CN202021435543 U CN 202021435543U CN 212637809 U CN212637809 U CN 212637809U
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- rear wheel
- overrunning
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- shaft
- electric power
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Abstract
The utility model relates to a rear wheel electric power transmission, include: the bicycle comprises a frame, a rear wheel shaft, a wheel hub, an automatic gear shifting speed change mechanism, a power-assisted motor and a driving wheel, wherein the rear wheel shaft is arranged in the frame and can rotate relative to the frame, the automatic gear shifting speed change mechanism is arranged between the wheel hub and the rear wheel shaft, power is input into the automatic gear shifting speed change mechanism through the rear wheel shaft, the automatic gear shifting speed change mechanism drives the wheel hub to output power, the power-assisted motor is arranged on the frame, a motor shaft of the power-assisted motor and the rear wheel shaft are coaxially arranged, the driving wheel is sleeved on the rear wheel shaft, a first overrunning clutch is arranged between the driving wheel shaft and the rear wheel shaft, and a second overrunning clutch is arranged between the motor shaft and the.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a bicycle derailleur field especially relates to a rear wheel electric power transmission.
[ background of the invention ]
In the prior art, rear-wheel electric power-assisted bicycles are provided with power-assisted motors arranged in wheel hubs, rear wheel shafts are fixedly connected with a frame, the power-assisted motors are arranged on the rear wheel shafts, driving wheels are fixedly connected with the wheel hubs and drive the wheel hubs to rotate, an overrunning clutch must be arranged between rotors of the power-assisted motors and the wheel hubs, and the power-assisted motors drive the wheel hubs to rotate during power assistance. In the prior art, a wheel shaft is fixed on a frame, a speed change mechanism is arranged in a wheel hub, the speed change mechanism and the wheel shaft must rotate freely, a driving wheel is connected with an input part of the speed change mechanism through an overrunning clutch, a power-assisted motor must be arranged on the inner side of the frame, a rotor of the power-assisted motor is connected with the input part of the speed change mechanism through the overrunning clutch, the structure is more complex, the installation difficulty of the power-assisted motor is high, and the manufacturing cost is higher.
Therefore, it is necessary to provide a rear wheel electric power assisted transmission that solves the above technical problems.
[ Utility model ] content
In order to solve the above problems, an object of the present invention is to provide a rear wheel electric power transmission that has a compact structure and can realize electric power assistance.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a rear wheel electric power assisted transmission comprising: the bicycle comprises a frame, a rear wheel shaft, a wheel hub, an automatic gear shifting speed change mechanism, a power-assisted motor and a driving wheel, wherein the rear wheel shaft is arranged in the frame and can rotate relative to the frame, the automatic gear shifting speed change mechanism is arranged between the wheel hub and the rear wheel shaft, the automatic gear shifting speed change mechanism inputs power from the rear wheel shaft, the automatic gear shifting speed change mechanism drives the wheel hub to output power, the power-assisted motor is arranged on the frame, a motor shaft of the power-assisted motor and the rear wheel shaft are coaxially arranged, the driving wheel is sleeved on the rear wheel shaft, a first overrunning clutch is arranged between the driving wheel and the rear wheel shaft, and a second overrunning clutch is arranged between.
Preferably, the utility model provides a rear wheel electric power assisted transmission further sets up to: the rear wheel shaft is connected with the frame through a bearing or a ball.
Preferably, the utility model provides a rear wheel electric power assisted transmission further sets up to: the rear wheel electric power transmission further comprises a first fixed connecting piece and a second fixed connecting piece which are arranged at two ends of the transmission respectively, the first fixed connecting piece and the second fixed connecting piece are fixedly connected with the frame, and the rear wheel shaft is arranged on the first fixed connecting piece and the second fixed connecting piece and is connected with the first fixed connecting piece and the second fixed connecting piece through bearings or balls.
Preferably, the utility model provides a rear wheel electric power assisted transmission further sets up to: the transmission wheel is a chain wheel or a belt wheel.
Preferably, the utility model provides a rear wheel electric power assisted transmission further sets up to: the first overrunning clutch comprises a first overrunning pawl and a first overrunning ratchet wheel, wherein one of the first overrunning pawl and the first overrunning ratchet wheel is fixedly connected with or integrally formed with the rear wheel shaft, and the other one of the first overrunning pawl and the first overrunning ratchet wheel is fixedly connected with or integrally formed with the driving wheel.
Preferably, the utility model provides a rear wheel electric power assisted transmission further sets up to: the second overrunning clutch comprises a second overrunning pawl and a second overrunning ratchet wheel, wherein one of the second overrunning pawl and the second overrunning ratchet wheel is fixedly connected with or integrally formed with the motor shaft, and the other one of the second overrunning pawl and the second overrunning ratchet wheel is fixedly connected with or integrally formed with the rear wheel shaft
Compared with the prior art, the utility model discloses following beneficial effect has: the utility model provides a rear wheel electricity helping hand derailleur simple structure, simple to operate through increasing the helping hand motor, can make to ride and become light.
[ description of the drawings ]
Fig. 1 is a schematic view of the structure of the middle and rear wheel electric power transmission according to the present invention.
Fig. 2 is the exploded structure diagram of the middle and rear wheel electric power transmission of the present invention.
In fig. 1 and 2: 1. the frame, 2, rear axle, 3, wheel hub, 4, helping hand motor, 40, motor shaft, 5, drive wheel, 6, first fixed connecting piece, 7, second fixed connecting piece, 8, first freewheel clutch, 9, second freewheel clutch.
[ detailed description ] embodiments
A rear wheel electric power transmission according to the present invention will be described in further detail below with reference to specific embodiments.
Referring to fig. 1 and 2, a rear wheel electric power transmission includes: the bicycle comprises a frame 1, a rear wheel shaft 2, a wheel hub 3, an automatic gear shifting speed change mechanism (not shown), a power-assisted motor 4, a transmission wheel 5, and a first fixed connecting piece 6 and a second fixed connecting piece 7 which are arranged at two ends of a transmission, wherein the first fixed connecting piece 6 and the second fixed connecting piece 7 are both fixedly connected with the frame 1, and the rear wheel shaft 2 is arranged on the first fixed connecting piece 6 and the second fixed connecting piece 7 and is connected with the first fixed connecting piece 6 and the second fixed connecting piece 7 through bearings or balls.
The automatic gear shifting speed change mechanism is arranged between the hub 3 and the rear axle 2, the automatic gear shifting speed change mechanism inputs power from the rear axle 2, the automatic gear shifting speed change mechanism drives the hub 3 to output power, the power-assisted motor 4 is arranged on the frame 1, and a motor shaft 40 of the power-assisted motor 4 and the rear axle 2 are coaxially arranged. The transmission wheel 5 is sleeved on the rear wheel shaft 2, a first overrunning clutch 8 is arranged between the transmission wheel 5 and the rear wheel shaft 2, the first overrunning clutch 8 comprises a first overrunning pawl and a first overrunning ratchet wheel, one of the first overrunning pawl and the first overrunning ratchet wheel is fixedly connected with or integrally formed with the rear wheel shaft 2, and the other one of the first overrunning pawl and the first overrunning ratchet wheel is fixedly connected with or integrally formed with the transmission wheel 5; a second overrunning clutch 9 is arranged between the motor shaft 40 and the rear wheel shaft 2, the second overrunning clutch 9 comprises a second overrunning pawl and a second overrunning ratchet wheel, one of the second overrunning pawl and the second overrunning ratchet wheel is fixedly connected with or integrally formed with the motor shaft 40, and the other one of the second overrunning pawl and the second overrunning ratchet wheel is fixedly connected with or integrally formed with the rear wheel shaft 2.
The utility model discloses well rear wheel electric power transmission's theory of operation does: the manpower is trampled and is trampled the piece and drive and trample the axle and rotate, trample the axle and drive big chain wheel and rotate, big chain wheel drives drive wheel 5 through the chain and rotates, drive wheel 5 drives rear axle 2 through first freewheel clutch 8 and rotates, rear axle 2 drives automatic gear shifting speed change mechanism again and rotates, rethread automatic gear shifting speed change mechanism drives wheel hub 3 and rotates, thereby make the wheel rotate and go forward, when trampling the power and reach a definite value, 4 operation helping hands of helping hand motor, motor shaft 40 drives rear axle 2 through second freewheel clutch 9 and rotates, rear axle 2 drives automatic gear shifting speed change mechanism and wheel hub 3 again and rotates, thereby make the wheel rotate and go forward, realize electric assistance.
To sum up, the utility model provides a rear wheel electric power transmission simple structure, simple to operate can make and ride and become light through increasing the helping hand motor.
The above-mentioned embodiments are merely illustrative of the principles and effects of the present invention, and some embodiments may be applied, and are not intended to limit the present invention; it should be noted that, for those skilled in the art, without departing from the inventive concept, several variations and modifications can be made, which are within the scope of the present invention.
Claims (6)
1. A rear wheel electric power assisted transmission, comprising: the bicycle comprises a frame, a rear wheel shaft, a wheel hub, an automatic gear shifting speed change mechanism, a power-assisted motor and a driving wheel, wherein the rear wheel shaft is arranged in the frame and can rotate relative to the frame, the automatic gear shifting speed change mechanism is arranged between the wheel hub and the rear wheel shaft, the automatic gear shifting speed change mechanism inputs power from the rear wheel shaft, the automatic gear shifting speed change mechanism drives the wheel hub to output power, the power-assisted motor is arranged on the frame, a motor shaft of the power-assisted motor and the rear wheel shaft are coaxially arranged, the driving wheel is sleeved on the rear wheel shaft, a first overrunning clutch is arranged between the driving wheel and the rear wheel shaft, and a second overrunning clutch is arranged between.
2. A rear wheel electric power assisted transmission as defined in claim 1, wherein: the rear wheel shaft is connected with the frame through a bearing or a ball.
3. A rear wheel electric power assisted transmission as defined in claim 1, wherein: the rear wheel electric power transmission further comprises a first fixed connecting piece and a second fixed connecting piece which are arranged at two ends of the transmission respectively, the first fixed connecting piece and the second fixed connecting piece are fixedly connected with the frame, and the rear wheel shaft is arranged on the first fixed connecting piece and the second fixed connecting piece and is connected with the first fixed connecting piece and the second fixed connecting piece through bearings or balls.
4. A rear wheel electric power assisted transmission as defined in claim 1, wherein: the transmission wheel is a chain wheel or a belt wheel.
5. A rear wheel electric power assisted transmission as defined in claim 1, wherein: the first overrunning clutch comprises a first overrunning pawl and a first overrunning ratchet wheel, wherein one of the first overrunning pawl and the first overrunning ratchet wheel is fixedly connected with or integrally formed with the rear wheel shaft, and the other one of the first overrunning pawl and the first overrunning ratchet wheel is fixedly connected with or integrally formed with the driving wheel.
6. A rear wheel electric power assisted transmission as defined in claim 1, wherein: the second overrunning clutch comprises a second overrunning pawl and a second overrunning ratchet wheel, wherein one of the second overrunning pawl and the second overrunning ratchet wheel is fixedly connected with or integrally formed with the motor shaft, and the other one of the second overrunning pawl and the second overrunning ratchet wheel is fixedly connected with or integrally formed with the rear wheel shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021435543.3U CN212637809U (en) | 2020-07-21 | 2020-07-21 | Rear wheel electric power transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021435543.3U CN212637809U (en) | 2020-07-21 | 2020-07-21 | Rear wheel electric power transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212637809U true CN212637809U (en) | 2021-03-02 |
Family
ID=74763252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021435543.3U Active CN212637809U (en) | 2020-07-21 | 2020-07-21 | Rear wheel electric power transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212637809U (en) |
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2020
- 2020-07-21 CN CN202021435543.3U patent/CN212637809U/en active Active
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