CN112660292A - Split torque acquisition device of power-assisted bicycle - Google Patents
Split torque acquisition device of power-assisted bicycle Download PDFInfo
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- CN112660292A CN112660292A CN202011618438.8A CN202011618438A CN112660292A CN 112660292 A CN112660292 A CN 112660292A CN 202011618438 A CN202011618438 A CN 202011618438A CN 112660292 A CN112660292 A CN 112660292A
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- torque acquisition
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Abstract
The invention discloses a split torque acquisition device of a power-assisted bicycle, wherein a power transmission device is arranged on a bicycle frame and comprises a torque acquisition device, and the torque acquisition device is arranged on a shell of the power transmission device and transmits a torque signal to the power transmission device. According to the invention, the torque acquisition device and the power transmission device are separately and independently arranged, so that the mechanical environment on the frame is simpler, the treading force can be accurately reflected, and the production cost and the subsequent maintenance cost of the motor are reduced. The torque acquisition device can be matched with a front-mounted and rear-mounted hub motor for use except for being matched with a middle-mounted motor, is suitable for different vehicle types, and is wide in audience range.
Description
Technical Field
The invention relates to a sensing device, in particular to a split torque acquisition device of a power-assisted bicycle.
Background
Under the background of the new national standard of the electric vehicle, most of the traditional electric vehicles can not meet the requirements of the electric vehicle, and the existing electric vehicles are greatly discounted in the aspects of speed and endurance mileage due to the requirements of the new national standard. Therefore, the development market of the power-assisted bicycle is greatly increased, the power-assisted bicycle is mainly divided into a plurality of forms, the motor is arranged in the middle, the motor is arranged on a five-way joint of the bicycle frame and is directly connected with the bicycle frame, and pedals are arranged on two sides of the motor. Another type is to mount a hub motor on a bicycle hub, either on the front wheel or the rear wheel. Compare in wheel hub motor, put the motor and have very big advantage in the aspect of the mechanical structure and the performance of whole vehicle, but the whole cost is compared in wheel hub motor height, is difficult for marketing.
Traditional moment of torsion induction motor is integrated inside the motor with torque sensor, but because the inside transmission structure of motor is complicated, the moment of torsion that the passerby trampled the footboard was ridden in the difficult accurate reaction of moment of torsion sensing device, and the axis's moment of flexure can also be gathered to the in-process in the moment of torsion, and this can cause very big puzzlement to the control of motor.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a split torque acquisition device of a power-assisted bicycle, which has a simple mechanical environment and accurately reflects the pedaling force.
The technical scheme is as follows: the split torque acquisition device of the power-assisted bicycle is characterized in that a power transmission device is arranged on a bicycle frame and comprises a torque acquisition device, and the torque acquisition device is arranged on a shell of the power transmission device or on the inner side of a chain closed loop of the bicycle frame and transmits a torque signal to the power transmission device.
Further, the torque acquisition device comprises a front rocker arm, a rear rocker arm, a deformation sensing device and a guide wheel, one end of the front rocker arm is connected with one end of the rear rocker arm, the front rocker arm and the rear rocker arm are integrated, the whole rocker arm is rotatably connected with the fixed support, the deformation sensing device is arranged on the front rocker arm and transmits signals to the power transmission device, and the guide wheel is installed at the other end of the rear rocker arm.
Further, the deformation sensing device is a strain gauge sensor.
Furthermore, a chain of the frame is provided with a transmission guide wheel for increasing the wrap angle of the chain.
Further, the power transmission device is a middle-mounted motor.
Furthermore, a front hub motor and a rear hub motor are arranged on the frame, and the torque acquisition device transmits torque signals to the front hub motor and the rear hub motor.
Has the advantages that: compared with the prior art, the invention has the following remarkable advantages:
(1) according to the invention, the torque acquisition device and the power transmission device are separately and independently arranged, so that the mechanical environment on the frame is simpler, the treading force can be accurately reflected, and the production cost and the subsequent maintenance cost of the motor are reduced.
(2) The torque acquisition device can be matched with a front-mounted and rear-mounted hub motor for use except for being matched with a middle-mounted motor, is suitable for different vehicle types, and is wide in audience range.
(3) The chain wrapping angle is increased by arranging the transmission guide wheel, the chain is ensured not to fall off in the operation, and the stability of the chain in the operation process is enhanced.
Drawings
FIG. 1 is a schematic structural view of a torque acquisition device according to the present invention;
FIG. 2 is a perspective view of the torque acquisition device of the present invention mounted on a motor housing;
FIG. 3 is a schematic view of the torque collecting device of the present invention mounted on the motor housing;
FIG. 4 is a schematic view of the drive tumbler of the present invention increasing the wrap angle of the chain;
FIG. 5 is a partial front elevational view of the bicycle with the assist of the present invention;
fig. 6 is a partial rear view of the bicycle with the assist of the present invention.
Detailed Description
The technical scheme of the invention is further explained by combining the attached drawings.
As shown in fig. 2 to 6, the power-assisted bicycle split torque collecting device of the present invention is mounted on a power transmission device housing, and transmits a torque signal to the power transmission device.
The moment sensing guide wheel presses the chain in the direction of a closed loop of the chain, a certain included angle is formed between two sections of the chain, when the pedal chain wheel is treaded with force to rotate, the chain is tensioned, an outward force is applied to the moment sensing guide wheel, the moment sensing guide wheel deforms slightly, the change is sensed through a strain gauge attached to the moment sensing guide wheel to give an electric signal related to the moment change, and the motor drives to control the output shaft of the motor according to the size of the deformation; when the treading torque is large, the output power of the motor is high, and when the treading torque is small, the output power of the motor is low. Thereby achieving the purpose of saving labor in riding. Compare the biggest difference among the prior art, on the frame in the motor outside was arranged in with torque sensing device to the scheme in this application, the mechanical environment is comparatively simple on the frame, and what torque sensing device gathered is the tight degree that rises of chain, the size of dynamics is trampled in the feedback that can be accurate.
As shown in fig. 1, the torque acquisition device of the present invention includes a front rocker arm, a rear rocker arm, a deformation sensing device and a guide wheel, wherein one end of the front rocker arm is connected to one end of the rear rocker arm, the deformation sensing device is disposed on the front rocker arm, the deformation sensing device transmits a signal to the power transmission device, and the guide wheel is disposed at the other end of the rear rocker arm.
The split torque sensor can be matched with a front-mounted wheel hub motor and a rear-mounted wheel hub motor except for being matched with a middle-mounted motor.
As shown in fig. 4, in order to ensure that the chain does not fall off during operation, the wrap angle of the chain is increased (the angle formed by the chain on the guide wheel is in a grey area in the figure), a transmission guide wheel can be arranged to ensure the stability of the chain during operation.
Claims (6)
1. The split torque acquisition device for the power-assisted bicycle is characterized by comprising a torque acquisition device, wherein the torque acquisition device is arranged on a shell of the power transmission device (1) and transmits a torque signal to the power transmission device.
2. The split torque acquisition device of the power-assisted bicycle as claimed in claim 1, wherein the torque acquisition device comprises a front rocker arm (2), a rear rocker arm (3), a deformation sensing device (5) and a guide wheel (4), one end of the front rocker arm (2) is connected with one end of the rear rocker arm (3), the deformation sensing device (5) is arranged on the front rocker arm (2), the deformation sensing device (5) transmits signals to the power transmission device (1), and the guide wheel (4) is arranged at the other end of the rear rocker arm (3).
3. The split torque acquisition device of the moped as claimed in claim 2, wherein the deformation sensing device (5) is a strain gauge sensor.
4. The split torque collecting device of the power-assisted bicycle as claimed in claim 1, wherein a transmission guide wheel (6) for increasing a wrap angle of a chain is arranged on the chain of the frame.
5. The split torque collecting device of the power-assisted bicycle according to claim 1, wherein the power transmission device (1) is a centrally-mounted motor.
6. The split torque acquisition device of the power-assisted bicycle according to claim 1, wherein the frame is provided with a front hub motor and a rear hub motor, and the torque acquisition device transmits torque signals to the front hub motor and the rear hub motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011618438.8A CN112660292A (en) | 2020-12-30 | 2020-12-30 | Split torque acquisition device of power-assisted bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011618438.8A CN112660292A (en) | 2020-12-30 | 2020-12-30 | Split torque acquisition device of power-assisted bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112660292A true CN112660292A (en) | 2021-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011618438.8A Pending CN112660292A (en) | 2020-12-30 | 2020-12-30 | Split torque acquisition device of power-assisted bicycle |
Country Status (1)
| Country | Link |
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| CN (1) | CN112660292A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103935458A (en) * | 2014-04-03 | 2014-07-23 | 新安乃达驱动技术(上海)有限公司 | Moment sensing system of electric power assisting bicycle |
| CN104276251A (en) * | 2014-10-31 | 2015-01-14 | 太仓市荣驰电机有限公司 | Torque sensing system for middle shaft of electric vehicle |
| US20160107720A1 (en) * | 2014-10-21 | 2016-04-21 | Wuxi Aimeike Power Machinery Company Limited | Mid-motor drive system for an electric bicycle |
| CN106945779A (en) * | 2017-05-04 | 2017-07-14 | 南京奥特博机电科技有限公司 | A kind of integrated form bicycle power-assisted device and moped |
| TWI602740B (en) * | 2016-09-30 | 2017-10-21 | jun-xiang Liu | Torque-aware electric bicycle drive assembly |
| CN207955944U (en) * | 2018-03-01 | 2018-10-12 | 南京奥特博机电科技有限公司 | A kind of foot-operated force measuring device of electric assisted bicycle |
| CN208616144U (en) * | 2018-05-02 | 2019-03-19 | 南京奥特博机电科技有限公司 | A kind of foot-operated force measuring device of electric assisted bicycle |
| CN209634670U (en) * | 2019-01-14 | 2019-11-15 | 昆山攀登电子科技有限公司 | A kind of electric bicycle column foot speed of torque sensing device |
-
2020
- 2020-12-30 CN CN202011618438.8A patent/CN112660292A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103935458A (en) * | 2014-04-03 | 2014-07-23 | 新安乃达驱动技术(上海)有限公司 | Moment sensing system of electric power assisting bicycle |
| US20160107720A1 (en) * | 2014-10-21 | 2016-04-21 | Wuxi Aimeike Power Machinery Company Limited | Mid-motor drive system for an electric bicycle |
| CN104276251A (en) * | 2014-10-31 | 2015-01-14 | 太仓市荣驰电机有限公司 | Torque sensing system for middle shaft of electric vehicle |
| TWI602740B (en) * | 2016-09-30 | 2017-10-21 | jun-xiang Liu | Torque-aware electric bicycle drive assembly |
| CN106945779A (en) * | 2017-05-04 | 2017-07-14 | 南京奥特博机电科技有限公司 | A kind of integrated form bicycle power-assisted device and moped |
| CN207955944U (en) * | 2018-03-01 | 2018-10-12 | 南京奥特博机电科技有限公司 | A kind of foot-operated force measuring device of electric assisted bicycle |
| CN208616144U (en) * | 2018-05-02 | 2019-03-19 | 南京奥特博机电科技有限公司 | A kind of foot-operated force measuring device of electric assisted bicycle |
| CN209634670U (en) * | 2019-01-14 | 2019-11-15 | 昆山攀登电子科技有限公司 | A kind of electric bicycle column foot speed of torque sensing device |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210416 |
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| RJ01 | Rejection of invention patent application after publication |