CN110371225A - Bicycle middle shaft torque sensor - Google Patents
Bicycle middle shaft torque sensor Download PDFInfo
- Publication number
- CN110371225A CN110371225A CN201910752488.6A CN201910752488A CN110371225A CN 110371225 A CN110371225 A CN 110371225A CN 201910752488 A CN201910752488 A CN 201910752488A CN 110371225 A CN110371225 A CN 110371225A
- Authority
- CN
- China
- Prior art keywords
- semicircle
- spring
- torque sensor
- bicycle
- torque
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 21
- 239000010959 steel Substances 0.000 claims abstract description 21
- 238000009434 installation Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 11
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000000691 measurement method Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000001351 cycling effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J45/00—Electrical equipment arrangements specially adapted for use as accessories on cycles, not otherwise provided for
- B62J45/40—Sensor arrangements; Mounting thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J99/00—Subject matter not provided for in other groups of this subclass
-
- 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
- B62M3/00—Construction of cranks operated by hand or foot
-
- 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
- G01L3/02—Rotary-transmission dynamometers
- G01L3/14—Rotary-transmission dynamometers wherein the torque-transmitting element is other than a torsionally-flexible shaft
- G01L3/1407—Rotary-transmission dynamometers wherein the torque-transmitting element is other than a torsionally-flexible shaft involving springs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The present invention relates to a kind of bicycle middle shaft torque sensors, wherein semicircle spring is arranged on the inside of one side of torque sensor shell, the sandwiched steel part in contact position on the inside of two sides nearby and shell is put in the spring, usually between each other due to not having contact force to be deformed spring not at contact point；Semicircle block is arranged on the inside of the another side of torque sensor shell, and semicircle block is relatively connected to the both ends of semicircle spring；The entire torque sensor of installation in bicycle five-pipe generates contact force by the way that the contact point of the steel part on the inside of shell one side and spring is arranged in when bicyclist rides, and is deformed spring and calculates the size of torque.The present invention finds out the size that bicycle bicyclist in ride is applied to bicycle torque by measuring the deflection of spring.The present invention has that structure is simple, manufacture is easy, measurement method is reliable, fast response time, measurement accuracy are guaranteed, high reliability.
Description
Technical field
The present invention relates to bicycle apparatus electric installation, in particular to a kind of bicycle middle shaft torque sensor can be measured
Bicyclist is applied to the torque of bicycle when cycling.
Background technique
With the development of bike tech, it is desirable that measure the problem of bicyclist is applied to bicycle torque size increasingly at
For problem in the urgent need to address.For example, people require the power-assist for being applied to bicycle by motor in aiding bicycle field
The torque that torque and bicyclist apply is at certain proportionate relationship；In racing car field, it is desirable which type of reinforcing mode energy known
The enough speed etc. for providing biggish torque to bicycle to improve racing car.These require the torque for knowing that bicyclist applies
Size.
For a period of time, it is a very popular project that research measurement, which is applied to the torque of bicycle, wherein studying
The method of some measurement torques is gone out.Such as the speed of bicycle is measured with pulse transducer, then find out torque；There are also utilizations
The method for measuring the torsional capacity of axis finds out torque etc..However all there are shortcomings for these methods, such as the former measurement accuracy
Low, the latter's manufacturing cost is expensive.
It is meaningful for meeting application demand so developing a kind of simple and effective force measuring method.
Summary of the invention
The task of the present invention is a kind of bicycle middle shaft torque sensor is provided, as long as the deflection for measuring spring can
To calculate the power for acting on spring, to further calculate out the size of torque, as long as therefore using spring etc. a few
They are mounted in the Five-way tube of bicycle and just constitute the simple torque sensor of structure, thus solve by element
The problems of above-mentioned prior art.
Technical solution of the invention is as follows:
A kind of bicycle middle shaft torque sensor, it includes bicycle five-pipe, it further includes torque sensor shell, semicircle
Spring, steel part, semicircle block and fixing screws；
The semicircle spring is arranged on the inside of one side of torque sensor shell, semicircle spring and torque sensor shell it
Between be equipped with gap to ensure that spring is not exposed to shell in stress deformation, two sides and torque pass near semicircle spring midpoint
The sandwiched steel part in contact position on the inside of sensor shell, usually between each other due to not having contact force to make semicircle at contact point
Spring is not deformed；
The semicircle block is arranged on the inside of the another side of torque sensor shell, and semicircle block is relatively connected to semicircle bullet
The both ends of spring, the two sides of semicircle block by big screws tighten on the inside of the another side in torque sensor shell on, it is semicircle
The both ends of block and the both ends of semicircle spring are rabbeted respectively and are fastened by Screw；
The entire torque sensor of installation in the bicycle five-pipe, when bicyclist rides by being arranged outside torque sensor
The contact point of steel part and semicircle spring on the inside of one side of shell generates contact force, and semicircle spring is made to be deformed and calculate
The size of torque.
The steel part is in saddle-shape, and the bottom surface at steel part both ends is set there are two protrusion, which is pressed on semicircle bullet
On two side external surfaces near spring midpoint.
The semicircle spring end and the semicircle block end at the semicircle block end place of being halved together are equipped with prolonging with protrusion
Long block, the extension block and protrusion are rabbeted with semicircle spring end.
The be halved together semicircle spring end at place of the semicircle spring end and semicircle block end is equipped with interlocking groove.
The implementation method of the bicycle middle shaft torque sensor is applied to the power P and chain of footrest when bicyclist rides
Equalising torque of the pulling force F for axle center of sprocket wheel is acted on, chain force F is close to horizontal direction, and the direction of footrest power P is close vertical
Directly, the horizontal component of footrest power P is little, and the resultant force of the two power makes torque sensor generate displacement, steel part and semicircle spring
Between generate contact force, the deformation that the horizontal component of this contact force generates semicircle spring be exactly a curved beam midpoint by
The effect of one concentrated force and the deformation generated, the size of this horizontal component is close to chain force F, therefore using measuring spring
Deformation, so that it may calculate the size of torque.
It is well known that the deformation of spring is directly proportional to the size for the active force that spring is subject to.Therefore, as long as measuring spring
Deflection can calculate the power for acting on spring, so as to further calculate out the size of torque.So developing
One simple and effective force measuring method is meaningful.The present invention finds out torque using the deflection of measurement spring, side
Method is reliable and effective.Bicycle torque sensor of the invention be exactly utilize this principle, as long as using spring etc. a few
They are mounted in the Five-way tube of bicycle and just constitute the simple torque sensor of structure by element.
A kind of principle of bicycle middle shaft torque sensor of the invention be using after spring stress deformation and stress it is big
Small directly proportional characteristic, the deflection by measuring spring find out bicycle bicyclist in ride and are applied to bicycle force
The size of square.Torque sensor of the invention is simple with structure, manufacture is easy, measurement method is reliable, fast response time, measurement
Precision is guaranteed, high reliability.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of bicycle middle shaft torque sensor of the invention.
Fig. 2 is the schematic diagram of bicycle chainwheel Yu footrest stress.
Appended drawing reference:
1 is torque sensor, and 2 be torque sensor shell, and 3 be semicircle spring, and 4 be steel part, and 5 be semicircle block, and 6 be big spiral shell
Nail, 7 be Screw, and 11 be bicycle five-pipe, and P is the power (abbreviation footrest power P) that bicyclist is applied to footrest, and F is chain work
Pulling force (abbreviation chain force F) for sprocket wheel.
Specific embodiment
It elaborates with reference to the accompanying drawings and examples to the present invention.
Referring to Fig. 1, the present invention provides a kind of bicycle middle shaft torque sensor, it is mainly by bicycle five-pipe 11, power
Square sensor outer housing 2, semicircle spring 3, steel part 4, semicircle block 5 and fixing screws composition.
Semicircle spring 3 is arranged on the inside of one side of torque sensor shell 2, outside semicircle spring 3 and torque sensor
Certain gap is equipped between shell 2, to ensure that spring is not exposed to shell in stress deformation.At semicircle 3 midpoint of spring
The sandwiched steel part 4 in contact position of 2 inside of neighbouring two sides and torque sensor shell, steel part 4 is in saddle-shape, the bottom at 4 both ends of steel part
Face is set there are two protrusion, which is pressed on two side external surfaces near semicircle 3 midpoint of spring.Usually in contact point
Place is not between each other due to having contact force to be deformed semicircle spring 3 not.
Semicircle block 5 is arranged on the inside of the another side of torque sensor shell 2, and semicircle block 5 is relatively connected to semicircle
The both ends of shape spring 3.The two sides of semicircle block 5 are fixed tightly on the inside of the another side of torque sensor shell 2 by big screw 6
On.The both ends of semicircle block 5 and the both ends of semicircle spring 3 are rabbeted respectively, then are fastened with Screw 7.
As shown in fig. 1,5 end of semicircle block of semicircle 3 end of spring and the 5 end place of being halved together of semicircle block is equipped with
Extension block with protrusion, the extension block and protrusion are rabbeted with semicircle 3 end of spring.Semicircle 3 end of spring and semicircle block 5
End be halved together place 3 end of semicircle spring be equipped with interlocking groove, used between semicircle spring 3 on the interlocking groove
Screw 7 is fastened.
Entire torque sensor 1 is installed in bicycle five-pipe 11, when bicyclist rides, is passed by setting in torque
The contact point of steel part 4 and semicircle spring 3 on the inside of one side of sensor shell 2 generates contact force, and semicircle spring 3 is made to generate change
Shape and the size that torque can be calculated.
Semicircle spring 3 is fixed on another semicircle block 5 by several screws by two ends of semicircle spring 3
On torque sensor shell 2, such structure type, which ensures to be calculated with the spring deflection measured, is applied to spring
The accuracy of power.
The implementation method and working principle of bicycle middle shaft torque sensor of the invention are as follows:
Referring to Fig. 2, P indicates that bicyclist is applied to the power (abbreviation footrest power P) of footrest, and F indicates that chain acts on the pulling force of sprocket wheel
(abbreviation chain force F), that is, the power for pushing bicycle to advance.The power P and chain that footrest is applied to when bicyclist rides are acted on
In sprocket wheel pulling force F for the equalising torque in axle center, chain force F is close to horizontal direction, and the direction of footrest power P is close to vertical,
The horizontal component of footrest power P is little, and the resultant force of the two power makes torque sensor 1 generate displacement, steel part 4 and semicircle spring 3
Between generate contact force.From the perspective of mechanics, the deformation that the horizontal component of this contact force generates semicircle spring 3 is just
Be a curved beam midpoint by a concentrated force effect and the deformation that generates.The size of this horizontal component is close to chain force F.
Therefore the deformation for measuring spring is utilized, so that it may calculate the size of torque.Foil gauge be can use to measure the change of spring
Shape amount, this method is not only simple, but also reliable.
In conclusion a kind of principle of bicycle middle shaft torque sensor of the invention is to utilize the deformation after spring stress
The characteristic directly proportional to stress size, the deflection by measuring spring find out bicycle bicyclist in ride and are applied to
The size of bicycle torque.Torque sensor of the invention is simple with structure, manufacture is easy, measurement method is reliable, responds speed
Degree is fast, measurement accuracy is guaranteed, high reliability.
The engineers and technicians of the art all it should be appreciated that above-described embodiment is intended merely to illustrate the present invention,
Middle attached drawing is the principle of the present invention figure, rather than limitation of the invention, manufactures torque in the principle using measurement camber of spring
In the range of sensor, any modification all by be the claims in the present invention range.
Claims (5)
1. a kind of bicycle middle shaft torque sensor, it includes bicycle five-pipe (11), it is characterised in that: it further includes torque
Sensor outer housing (2), semicircle spring (3), steel part (4), semicircle block (5) and fixing screws；
The semicircle spring (3) is arranged on the inside of one side of torque sensor shell (2), and semicircle spring (3) and torque pass
Gap is equipped between sensor shell (2) to ensure that spring is not exposed to shell in stress deformation, at semicircle spring (3) midpoint
The sandwiched steel part (4) in contact position on the inside of neighbouring two sides and torque sensor shell (2), usually at contact point between each other by
In no contact force semicircle spring (3) is not deformed；
The semicircle block (5) is arranged on the inside of the another side of torque sensor shell (2), and semicircle block (5) relatively connects
At the both ends of semicircle spring (3), the two sides of semicircle block (5) are fixed tightly in by big screw (6) in torque sensor shell (2)
Another side on the inside of on, the both ends of the both ends of semicircle block (5) and semicircle spring (3) rabbets respectively and are consolidated by Screw (7)
Tightly；
The entire torque sensor (1) of installation in the bicycle five-pipe (11), when bicyclist rides by being arranged in torque
The contact point of steel part (4) and semicircle spring (3) on the inside of one side of sensor outer housing (2) generates contact force, makes semicircle bullet
Spring (3) is deformed and calculates the size of torque.
2. bicycle middle shaft torque sensor described in accordance with the claim 1, it is characterised in that: the steel part (4) is in saddle-shape,
The bottom surface at steel part (4) both ends is set there are two protrusion, which is pressed on the two sides appearance near semicircle spring (3) midpoint
On face.
3. bicycle middle shaft torque sensor described in accordance with the claim 1, it is characterised in that: the semicircle spring (3) is held
Be halved together semicircle block (5) end at place of portion and semicircle block (5) end is equipped with the raised extension block of band, the extension block and protrusion
Rabbet with semicircle spring (3) end.
4. bicycle middle shaft torque sensor described in accordance with the claim 1, it is characterised in that: the semicircle spring (3) is held
Be halved together semicircle spring (3) end at place of portion and semicircle block (5) end is equipped with interlocking groove.
5. the implementation method of bicycle middle shaft torque sensor described in accordance with the claim 1, it is characterised in that: bicyclist rides
When be applied to the power P of footrest and chain acts on equalising torque of the pulling force F for axle center of sprocket wheel, chain force F is close to level side
To, and the direction of footrest power P is close vertical, the horizontal component of footrest power P is little, and the resultant force of the two power makes torque sensor
(1) displacement is generated, generates contact force between steel part (4) and semicircle spring (3), the horizontal component of this contact force makes semicircle
The deformation that spring (3) generates be exactly a curved beam midpoint by a concentrated force effect and the deformation that generates, this level point
The size of power utilizes the deformation for measuring spring close to chain force F, so that it may calculate the size of torque.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910752488.6A CN110371225B (en) | 2019-08-16 | 2019-08-16 | Moment sensor for middle axle of bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910752488.6A CN110371225B (en) | 2019-08-16 | 2019-08-16 | Moment sensor for middle axle of bicycle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110371225A true CN110371225A (en) | 2019-10-25 |
| CN110371225B CN110371225B (en) | 2024-04-16 |
Family
ID=68259422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910752488.6A Active CN110371225B (en) | 2019-08-16 | 2019-08-16 | Moment sensor for middle axle of bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110371225B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113639905A (en) * | 2021-08-02 | 2021-11-12 | 哈尔滨轮速科技有限公司 | Centre shaft torque sensor |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002082003A (en) * | 2000-09-06 | 2002-03-22 | Toyoda Mach Works Ltd | Torque detecting device |
| CN101561328A (en) * | 2009-05-21 | 2009-10-21 | 叶雪峰 | Intelligent sensor for electric boosting bicycle |
| CN101701789A (en) * | 2009-11-19 | 2010-05-05 | 叶雪峰 | Measuring device and method of deformation amount of rotating parts |
| CN202372284U (en) * | 2011-12-15 | 2012-08-08 | 陆永刚 | Torque sensor integrated with motor of electric bicycle |
| CN102661731A (en) * | 2012-06-02 | 2012-09-12 | 叶雪峰 | Device and method for measuring relative displacement of rotating parts |
| CN207141297U (en) * | 2017-08-03 | 2018-03-27 | 爱克玛电器（苏州）有限公司 | Electric bicycle torque sensor |
| CN210284483U (en) * | 2019-08-16 | 2020-04-10 | 无锡嘉能电机技术有限公司 | Bicycle middle axle torque sensor |
-
2019
- 2019-08-16 CN CN201910752488.6A patent/CN110371225B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002082003A (en) * | 2000-09-06 | 2002-03-22 | Toyoda Mach Works Ltd | Torque detecting device |
| CN101561328A (en) * | 2009-05-21 | 2009-10-21 | 叶雪峰 | Intelligent sensor for electric boosting bicycle |
| CN101701789A (en) * | 2009-11-19 | 2010-05-05 | 叶雪峰 | Measuring device and method of deformation amount of rotating parts |
| CN202372284U (en) * | 2011-12-15 | 2012-08-08 | 陆永刚 | Torque sensor integrated with motor of electric bicycle |
| CN102661731A (en) * | 2012-06-02 | 2012-09-12 | 叶雪峰 | Device and method for measuring relative displacement of rotating parts |
| CN207141297U (en) * | 2017-08-03 | 2018-03-27 | 爱克玛电器（苏州）有限公司 | Electric bicycle torque sensor |
| CN210284483U (en) * | 2019-08-16 | 2020-04-10 | 无锡嘉能电机技术有限公司 | Bicycle middle axle torque sensor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113639905A (en) * | 2021-08-02 | 2021-11-12 | 哈尔滨轮速科技有限公司 | Centre shaft torque sensor |
| CN113639905B (en) * | 2021-08-02 | 2024-01-30 | 哈尔滨轮速科技有限公司 | Center shaft moment sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110371225B (en) | 2024-04-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI362342B (en) | Method and device for measuring the chain force in a bicycle | |
| EP2474343B1 (en) | Crankset based bicycle power measurement | |
| US20200166421A1 (en) | Systems and methods for measuring drivetrain power transmission | |
| US9206850B2 (en) | Sensor-equipped bearing device for wheel having integrated in-wheel motor | |
| JP6466608B2 (en) | Power measurement assembly | |
| US9150278B2 (en) | Pedal torque measurement | |
| US9090300B2 (en) | Bicycle-use measuring apparatus and control method | |
| CN103968976A (en) | System and method for detecting vehicle wheel movement state vector | |
| US20180080840A1 (en) | Dynamometer for measurement of power through a rotating shaft | |
| CN203186537U (en) | Torque detection device of force-assisting bicycle | |
| JP2015529330A5 (en) | ||
| CN101231203B (en) | Electric vehicle force-aid sensor using virgula supporting member deformation | |
| CN110371225A (en) | Bicycle middle shaft torque sensor | |
| EP4354109A2 (en) | External force measurement unit, measurement method, motor unit and electrically assisted bicycle | |
| TW201409005A (en) | Non-contact torque and rotational angle sensor | |
| US20200003641A1 (en) | Power meter for cycling | |
| CN2864625Y (en) | Parallel curving type dynamic spindle weight measuring weighing bending plate sensor | |
| WO2010132926A1 (en) | Torque measuring device | |
| JP5670857B2 (en) | Rotational angular velocity sensor | |
| CN210284483U (en) | Bicycle middle axle torque sensor | |
| US10723411B2 (en) | Torque detection device of rear frame for electrically assisted bicycle | |
| CN116783112A (en) | External force measuring system, measuring method and electric auxiliary bicycle | |
| CN208424122U (en) | Hub motor of electric bicycle with built-in power-assisted sensor | |
| SU145039A1 (en) | Gear Test Bench | |
| CN217738259U (en) | Novel fiber grating tilt angle sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20191113 Address after: The new sun Road Industrial Park in Jiangsu Province, 214142 Wuxi city intersection Kano factory Applicant after: Wuxi Jia Neng Motor Technology Co.,Ltd. Address before: The new sun Road Industrial Park in Jiangsu Province, 214142 Wuxi city intersection Kano factory Applicant before: Ye Xuefeng |
|
| TA01 | Transfer of patent application right | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |