CN213502778U - Speed change system with deformation type torsion sensing structure and moped - Google Patents
Speed change system with deformation type torsion sensing structure and moped Download PDFInfo
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- CN213502778U CN213502778U CN202021456755.XU CN202021456755U CN213502778U CN 213502778 U CN213502778 U CN 213502778U CN 202021456755 U CN202021456755 U CN 202021456755U CN 213502778 U CN213502778 U CN 213502778U
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- gear
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- support
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M11/00—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels
- B62M11/04—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
- B62M6/40—Rider propelled cycles with auxiliary electric motor
- B62M6/45—Control or actuating devices therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
- B62M6/40—Rider propelled cycles with auxiliary electric motor
- B62M6/45—Control or actuating devices therefor
- B62M6/50—Control or actuating devices therefor characterised by detectors or sensors, or arrangement thereof
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
The utility model relates to a speed change system with a deformation type torsion sensing structure and a power-assisted bicycle, wherein the speed change system comprises a pedal through shaft, a first gear, a second gear, a third gear, a deformation bracket, a motor, a controller and a shell; the first gear and the third gear are arranged in the shell and sleeved on the pedal through shaft; the second gear is connected with first gear and third gear engagement, and the one end of second gear is rotationally installed on the casing, the other end is through warping the support mounting on the casing, through the foil gage direct strain value signal direct transmission to the controller that will detect the support that warp, need not through any electronic components, both can reduce the risk of inefficacy by a wide margin, but also the simplified structure, stable performance, reliable, and can automize real-time control motor and provide auxiliary power, need not artifical manual operation, it becomes lighter to let ride, it is more comfortable, the enjoyment of riding has also been improved, this speed change system simple structure, it is easy to implement, be favorable to popularizing and using.
Description
Technical Field
The utility model belongs to the technical field of the moped, in particular to speed change system and moped with deformation formula torsion sensing structure.
Background
The power-assisted bicycle has the advantages of labor saving, large load, high speed and the like, and is a main tool for people to go on a short journey and transport. However, the applicant found that: the existing moped on the market is provided with a twist sleeve on a pedal through shaft, and controls a middle-mounted motor on the moped by detecting the torsional deformation of the twist sleeve, but the torsional deformation detection precision of the twist sleeve is low, so that the control of the middle-mounted motor is seriously influenced, and for this purpose, two PCB boards are required to be arranged on the moped at the same time, a first PCB board is fixed on the twist sleeve and rotates along with the twist sleeve to receive a signal of torque, a second PCB board is fixed on a shell of the middle-mounted motor and is connected to a controller by using an electric wire, the two PCB boards are arranged in parallel and are connected and communicated by adopting a wireless transmission mode, the second PCB board transmits a power supply and a signal to the first PCB board for riding, and the detected torsional deformation (a signal for sensing torque) of the twist sleeve is transmitted to the second PCB board by the first PCB board when the moped so as to control the middle-mounted motor, however, the structure has higher requirement on the assembly precision of the shell, more electronic components are needed, the production and processing difficulty is high, and meanwhile, the detected torsion deformation signal of the torsion sleeve is transmitted to the controller of the middle-placed motor through the first PCB and the second PCB, and wireless transmission is adopted between the first PCB and the second PCB, so that signal failure is easily caused, and the reliability of the product is low.
SUMMERY OF THE UTILITY MODEL
For solving the above-mentioned problem that exists among the prior art, the utility model provides a through the foil gage directly will detect the strain value signal direct transmission to the controller of deformation support, need not through any electronic components, both can reduce the risk of inefficacy by a wide margin, can simplify the structure again, stable performance, reliable, and can automize real-time control motor and provide auxiliary power, simple structure, implement easy variable speed system who has deformation formula torsion sensing structure to and applied this booster bicycle who has variable speed system of deformation formula torsion sensing structure.
In order to solve the technical problem, the utility model adopts the following technical scheme:
a speed change system with a deformation type torsion sensing structure comprises a pedal through shaft, a first gear, a second gear, a third gear, a deformation support, a motor, a controller and a shell; the pedal through shaft is rotatably arranged in the shell in a penetrating way, and two ends of the pedal through shaft extend out of the shell; the first gear and the third gear are arranged in the shell and sleeved on the pedal through shaft; the second gear is arranged in the shell and is meshed with the first gear and the third gear, one end of the second gear is rotatably arranged on the shell, the other end of the second gear is arranged on the shell through a deformation support, and the deformation support deforms when the output fluted disc transmits counter force to the first gear and the second gear through the third gear; a strain gauge is arranged at the deformation position of the deformation support, the signal output end of the strain gauge is in signal connection with a controller arranged in the shell, and a strain value is transmitted to the controller when the deformation support deforms; the controller is in signal connection with a motor arranged in the shell and controls the motor to provide auxiliary power when receiving a deformation signal of the strain gauge.
Further, a magnet is arranged on the end face of one end, mounted on the deformation support, of the second gear), a hall element is arranged inside the shell, and the hall element faces the magnet to jointly form the speed sensor.
Further, the deformable support includes the support main part, the week side of support main part has the deformable linking arm of more than two atress, more than two the linking arm is fixed on the casing, the other end of support main part is rotationally installed on the support main part, the foil gage sets up on one of them linking arm.
Further, the inner side of the bracket main body is provided with a mounting concave position, and one end of the second gear is rotatably mounted in the mounting concave position.
Further, both ends of the second gear are rotatably mounted on the housing and the bracket body through a first bearing and a second bearing, respectively, and the second bearing is disposed in the mounting recess.
Furthermore, the bottom of the mounting concave position is provided with a through hole penetrating through the bracket main body, and the through hole faces the magnet.
Further, the mounting concave position and the through hole are coaxial with the magnet and the second gear.
Furthermore, the bracket main body and the connecting arm are made of elastic recovery materials and are of an integrated structure.
Furthermore, a third bearing is arranged at the position, where one end of the pedal through shaft penetrates through the shell, and the other end of the pedal through shaft penetrates through the output part of the motor and then extends out of the shell, and the output part can rotate in the shell through a fourth bearing.
A power-assisted bicycle comprises a bicycle body, wherein the bicycle body is provided with the speed change system with the deformation type torsion sensing structure, and a battery pack arranged on the bicycle body is in conduction connection with a controller and a motor of the speed change system with the deformation type torsion sensing structure and supplies driving electric energy; and an output fluted disc of the speed change system is in driving connection with a rear wheel on the vehicle body.
The utility model discloses mainly have following beneficial effect:
the utility model discloses a directly paste the foil gage in the yielding department of deformation support, and with signal direct transmission to the controller, the centre need not through any electronic components, both can reduce the risk of inefficacy by a wide margin, can simplify the structure again, make speed change system's stable performance, reliable, and through detecting the deformation support come automatic real-time control motor to provide auxiliary power, need not artifical manual operation, let ride and become lighter more, more comfortable, the enjoyment of riding has also been improved, and this speed change system simple structure, easy implementation, be favorable to popularizing and using.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of a transmission system with a deformation-type torque sensing structure according to the present invention;
fig. 2 is another structural schematic diagram of an embodiment of a transmission system with a deformation-type torque sensing structure according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
As shown in fig. 1 and 2:
the embodiment of the utility model provides a speed change system with deformation formula torsion sensing structure, including pedal logical axle 1, first gear 2, second gear 3, third gear 4, deformation support 5, motor (not shown in the figure), controller (not shown in the figure) and casing 6. The pedal through shaft 1 is rotatably arranged in the shell 6 in a penetrating way, and two ends of the pedal through shaft extend out of the shell 6; the first gear 2 and the third gear 4 are arranged in the shell 6 and sleeved on the pedal through shaft 1; second gear 3 locates in the casing 6 and is connected with the meshing of first gear 2 and third gear 4, and the one end of second gear 3 rotationally installs on casing 6 moreover, and the other end is installed on casing 6 through warping support 5, the department of warping support 5 is provided with foil gage 7, the signal output part of foil gage 7 with set up the controller signal connection in casing 6 (the signal output part of foil gage 7 adopts the cable directly to be connected with the controller better), the controller with set up the motor signal connection in casing 6.
Wherein, one end of the pedal through shaft 1 is provided with a third bearing 11 through the housing 6, and the other end of the pedal through shaft passes through the output part 8 of the motor and then extends out of the housing 6, and a rotary oil seal 12 is arranged between the output part 8 and the pedal through shaft 1, and the output part 8 can rotate in the housing 6 through a fourth bearing 13; the deformable bracket 5 comprises a bracket main body 51, wherein two force deformable connecting arms 52 (or more than two connecting arms 52) are arranged on the periphery of the bracket main body 51, the two connecting arms 52 are fixed on the shell 6 (for example, can be fixed on the shell 6 through fasteners such as bolts 55), and the bracket main body 51 and the connecting arms 52 are made of elastic recovery materials (such as aluminum alloy) and are of an integrated structure; the other end of the bracket main body 51 is rotatably arranged on the bracket main body 51, and the strain gage 7 is arranged on one connecting arm 52; the inner side of the bracket main body 51 has a mounting recess 53, one end of the second gear 3 is rotatably mounted in the mounting recess 53, specifically, both ends of the second gear 3 are rotatably mounted on the housing 6 and the bracket main body 51 through the first bearing 31 and the second bearing 32, respectively, and the second bearing 32 is disposed in the mounting recess 53.
Speed change system during operation with deformation formula torsion sensing structure takes place to warp when the deformation support 5 is exported the fluted disc through third gear 4 to first gear 2 and 3 transmission counter-forces of second gear, then the signal output part and the controller signal connection of setting in casing 6 of foil gage 7 to will meet an emergency value transmission to controller when deformation support 5 produces deformation, the controller provides auxiliary power after receiving the deformation signal of foil gage 7 control motor after that.
Thus, a variable speed system with deformation formula torsion sensing structure is through directly pasting the easy deformation department at deformation support 5 with the foil gage to with signal direct transmission to the controller, the centre need not through any electronic components, both can reduce the risk of inefficacy by a wide margin, can simplify the structure again, make variable speed system's stable performance, reliable, and it provides auxiliary power to warp support 5 and come automatic real-time control motor through detecting, need not artifical manual operation, let ride and become lighter more, more comfortable, the enjoyment of riding has also been improved, this variable speed system simple structure, it is easy to implement, be favorable to popularizing and using.
As shown in fig. 2, the end face of the second gear 3, which is mounted on the deformation support 5, is provided with a magnet 9, specifically, the bottom of the mounting recess 53 is provided with a through hole 54 penetrating through the support body 51, the through hole 54 faces the magnet 9, and the mounting recess 53 and the through hole 54 are coaxial with the magnet 9 and the second gear 3; the housing 6 is provided with a hall element 10 inside, and the hall element 10 faces the magnet 9 to jointly form a speed sensor. When riding passerby's pedal, pedal logical axle 1 rotates, drives first gear 2 and rotates, and then orders about second gear 3 and rotate, fixes the real-time pedal 1 rotational speed that leads to that will detect of hall element 10 at casing 6 this moment, obtains the signal of stepping on fast (RPM) to convey to the controller, thereby the rotational speed of control motor ensures that the variable speed is more stable, more reliable.
Variable speed system with deformation formula torsion sensing structure on can being applied to moped, concrete structure can be for: the moped comprises a body, wherein the body is provided with the speed change system with the deformation type torsion sensing structure, and a battery pack arranged on the body is in conduction connection with a controller and a motor of the speed change system with the deformation type torsion sensing structure to supply driving electric energy; and an output fluted disc of the speed change system is in driving connection with a rear wheel on the vehicle body.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.
Claims (10)
1. A speed change system with deformation type torsion sensing structure is characterized in that: comprises a pedal through shaft (1), a first gear (2), a second gear (3), a third gear (4), a deformation bracket (5), a motor, a controller and a shell (6); the pedal through shaft (1) is rotatably arranged in the shell (6) in a penetrating way, and two ends of the pedal through shaft extend out of the shell (6); the first gear (2) and the third gear (4) are arranged in the shell (6) and sleeved on the pedal through shaft (1); the second gear (3) is arranged in the shell (6) and is meshed with the first gear (2) and the third gear (4), one end of the second gear (3) is rotatably arranged on the shell (6), the other end of the second gear is arranged on the shell (6) through a deformation support (5), and the deformation support (5) deforms when the output fluted disc transmits counter force to the first gear (2) and the second gear (3) through the third gear (4); a strain gauge (7) is arranged at the deformation position of the deformation support (5), the signal output end of the strain gauge (7) is in signal connection with a controller arranged in the shell (6), and a strain value is transmitted to the controller when the deformation support (5) deforms; the controller is in signal connection with a motor arranged in the shell (6) and controls the motor to provide auxiliary power when receiving a deformation signal of the strain gauge (7).
2. The transmission system having a variable torque sensing architecture of claim 1, wherein: the end face of one end, where the second gear (3) is installed on the deformation support (5), is provided with a magnet (9), a Hall element (10) is arranged inside the shell (6), and the Hall element (10) faces the magnet (9) to jointly form a speed sensor.
3. The transmission system having a variable torque sensing architecture of claim 2, wherein: the deformable support (5) comprises a support main body (51), wherein more than two deformable connecting arms (52) are stressed on the peripheral side of the support main body (51), more than two connecting arms (52) are fixed on the shell (6), the other end of the support main body (51) is rotatably installed on the support main body (51), and the strain gauge (7) is arranged on one connecting arm (52).
4. The transmission system having a variable torque sensing architecture of claim 3, wherein: the inner side of the bracket main body (51) is provided with a mounting concave position (53), and one end of the second gear (3) is rotatably mounted in the mounting concave position (53).
5. The transmission system having a variable torque sensing architecture of claim 4, wherein: the two ends of the second gear (3) are respectively and rotatably arranged on the shell (6) and the bracket main body (51) through a first bearing (31) and a second bearing (32), and the second bearing (32) is arranged in the mounting concave position (53).
6. The transmission system having a variable torque sensing architecture of claim 4, wherein: the bottom of the mounting concave position (53) is provided with a through hole (54) penetrating through the bracket main body (51), and the through hole (54) faces the magnet (9).
7. The transmission system having a variable torque sensing architecture of claim 6, wherein: the mounting concave position (53) and the through hole (54) are coaxial with the magnet (9) and the second gear (3).
8. The transmission system with a shape-changing torque sensor structure according to any one of claims 3-7, wherein: the bracket main body (51) and the connecting arm (52) are made of elastic recovery materials and are of an integrated structure.
9. The transmission system with a shape-changing torque sensor structure according to any one of claims 1 to 7, wherein: one end of the pedal through shaft (1) penetrates through the shell (6) to be provided with a third bearing (11), the other end of the pedal through shaft penetrates through an output part (8) of the motor and then extends out of the shell (6), and the output part (8) is rotatably arranged in the shell (6) through a fourth bearing (13).
10. A power-assisted bicycle is characterized in that: the variable speed system with the deformation type torsion sensing structure comprises a vehicle body, wherein a variable speed system with the deformation type torsion sensing structure is arranged on the vehicle body, and a battery pack arranged on the vehicle body is in conduction connection with a controller and a motor of the variable speed system with the deformation type torsion sensing structure and supplies driving electric energy; and an output fluted disc of the speed change system is in driving connection with a rear wheel on the vehicle body.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021456755.XU CN213502778U (en) | 2020-07-22 | 2020-07-22 | Speed change system with deformation type torsion sensing structure and moped |
| PCT/CN2020/116662 WO2022016698A1 (en) | 2020-07-22 | 2020-09-22 | Speed changing system having shape-change torsion sensing structure, and power-assisted bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021456755.XU CN213502778U (en) | 2020-07-22 | 2020-07-22 | Speed change system with deformation type torsion sensing structure and moped |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213502778U true CN213502778U (en) | 2021-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021456755.XU Active CN213502778U (en) | 2020-07-22 | 2020-07-22 | Speed change system with deformation type torsion sensing structure and moped |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN213502778U (en) |
| WO (1) | WO2022016698A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI830469B (en) * | 2022-10-28 | 2024-01-21 | 財團法人自行車暨健康科技工業研究發展中心 | Systematic integration mechanism and method for mid-mounted motor torque and motor position sensing |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1201965C (en) * | 2001-05-10 | 2005-05-18 | 财团法人工业技术研究院 | Torsion sensing measurement for vehicle and device for miniturizing big disc |
| US6595072B2 (en) * | 2001-10-22 | 2003-07-22 | Gordon Liao | Sensor of the pedaling force of a power-assisting bike |
| CN101423102A (en) * | 2008-08-26 | 2009-05-06 | 陈戈平 | Electric power-assisted bike pedal moment sensing system |
| CN206691312U (en) * | 2016-09-07 | 2017-12-01 | 新安乃达驱动技术（上海）股份有限公司 | Electric bicycle and wherein put drive system |
| WO2019102495A1 (en) * | 2017-11-23 | 2019-05-31 | Ivroom Power Private Limited | Mid-drive unit for electric bicycle |
| CN209852516U (en) * | 2019-03-27 | 2019-12-27 | 新安乃达驱动技术（上海）股份有限公司 | Electric power-assisted bicycle and middle motor driving system thereof |
| CN111703535A (en) * | 2020-07-22 | 2020-09-25 | 珠海市钧兴机电有限公司 | Speed change system with deformation type torsion sensing structure and moped |
-
2020
- 2020-07-22 CN CN202021456755.XU patent/CN213502778U/en active Active
- 2020-09-22 WO PCT/CN2020/116662 patent/WO2022016698A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI830469B (en) * | 2022-10-28 | 2024-01-21 | 財團法人自行車暨健康科技工業研究發展中心 | Systematic integration mechanism and method for mid-mounted motor torque and motor position sensing |
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| Publication number | Publication date |
|---|---|
| WO2022016698A1 (en) | 2022-01-27 |
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