CN106153231B - Torque detection system - Google Patents
Torque detection system Download PDFInfo
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- CN106153231B CN106153231B CN201510190249.8A CN201510190249A CN106153231B CN 106153231 B CN106153231 B CN 106153231B CN 201510190249 A CN201510190249 A CN 201510190249A CN 106153231 B CN106153231 B CN 106153231B
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- torsion
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- voltage signal
- generation mechanism
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Abstract
A kind of torque detection system, for detecting the torque magnitude generated when a torsion generation mechanism is connected the twisting force device application resistance of a fixing seat, the torque detection system includes an angle detection module and an arithmetic unit, the angle detection module is set to the twisting force device and exports a voltage signal, and with the size for changing the voltage signal when twisting force device is relative to fixing seat movement, the arithmetic unit receives the voltage signal, and a torque value is selected according to the voltage signal by lookup table mode, the torque value corresponds to the torque magnitude of the torsion generation mechanism.The present invention is to carry out torsion detection with contactless sensing means, does not influence torsion accuracy in detection because long-time uses.
Description
Technical field
The present invention relates to a kind of torque detection system, particularly relate to be applied in the sports equipments such as exercycle, to examine
Survey the torque detection system of torque magnitude set by sports equipment.
Background technique
Existing exercycle mainly includes that a vehicle frame, a flywheel and an adjustment bar, user can pass through the turn adjustment bar
To change the torsion for being applied to the flywheel.In order to learn the torque magnitude of the set flywheel at present, existing body-building for user
Vehicle is usually provided with torsion inspection side device.Existing torque tester uses variable resistance type torque tester, this can power transformation
Resistive torque tester includes a variable resistance, and the resistance value of the variable resistance is detected by a controller, the control
Device processed judges the torque magnitude of the flywheel according to the variation of resistance value.However, the variable resistance is to adjust structure for contact
It makes, after repeated multiple times operation, which easily influences its resistance value because contact is worn, and reduces the adjustment detection of its torsion
Accuracy.
Summary of the invention
The main object of the present invention is to provide a kind of torque detection system, solves existing contact tester for torque because repeatedly
The problem of accuracy is reduced after operation.
Torque detection system of the invention is used to detect the torsion work that a torsion generation mechanism is connected a fixing seat
The torque magnitude generated when applying resistance with device, which includes:
One angle detection module is set on the twisting force device and exports a voltage signal, to make with the torsion
Change the size of the voltage signal when mobile relative to the fixing seat with device；
One arithmetic unit is electrically connected the angle detection module to receive the voltage signal, and by lookup table mode according to this
Voltage signal selects a torque value, which corresponds to the torque magnitude of the torsion generation mechanism.
The torsion can be changed when mobile relative to the fixing seat in torque detection system according to the present invention, the twisting force device
The torsion of generation mechanism, while the tilt angle of the angle detection module also changes correspondingly and changes the size of the voltage signal,
The arithmetic unit can select corresponding torque value according to the size of the voltage signal with lookup table mode.Therefore, the present invention is with non-
The sensing means of contact carry out torsion detection, and torsion accuracy in detection is not influenced because of long-time operation, naturally not existing
When using variable resistance, because contact abrasion due to influence accuracy in detection the problem of.
Detailed description of the invention
Fig. 1 is that a preferred embodiment of torque detection system of the invention is set to the floor map of exercycle.
Fig. 2 is the partial schematic sectional view of exercycle shown in Fig. 1.
Fig. 3 is the sectional perspective schematic diagram of its twisting force device and adjustment bar in exercycle shown in Fig. 1.
Fig. 4 is to rotate the schematic diagram of the adjustment bar to change the twisting force setting position in Fig. 2.
Fig. 5 is the circuit box schematic diagram of the first preferred embodiment of torque detection system of the invention.
Fig. 6 is the circuit box schematic diagram of the second preferred embodiment of torque detection system of the invention.
Fig. 7 is the circuit box schematic diagram of the third preferred embodiment of torque detection system of the invention.
Fig. 8 is that four preferred embodiments of torque detection system of the invention are set to the floor map of exercycle.
Fig. 9 is the circuit box schematic diagram of the 4th preferred embodiment of torque detection system of the invention.
Figure 10 is the circuit box schematic diagram of the 5th preferred embodiment of torque detection system of the invention.
Main element symbol description:
100 exercycle, 11 torsion generation mechanism
12 fixing seat, 121 fixing piece
122 hollow sleeve, 13 twisting force device
131 pedestal, 132 resistance piece
133 connector, 134 pivot
135 screw holes 14 adjust bar
141 body of rod, 142 head
143 annular groove, 144 bolt
145 external thread section, 20 angle detection module
21 arithmetic unit, 211 analog/digital converter
212 microcontroller, the 213 torsion table of comparisons
214 differential amplifier, 215 voltage source
216 digital/analog converter, 217 voltage adder
218 voltage sources 22 assist detection module
Specific embodiment
Torque detection system of the invention is the torsion for being connected a fixing seat for detecting a torsion generation mechanism
Acting device applies the torque magnitude generated when resistance.Referring to FIG. 1, the present invention can be applicable to an exercycle 100, but not with this
Be limited, the torsion generation mechanism 11, the fixing seat 12 and the twisting force device 13 are the existing construction of exercycle 100, for
The related description of torque detection system of the invention is closed, the construction of the exercycle 100 described briefly below, which can
For the flywheel of the exercycle 100, which can be the vehicle frame of the exercycle 100.
Fig. 2 and Fig. 3 are please referred to, which includes a pedestal 131, the resistance in the pedestal 131
Power part 132 and a connection piece 133 being set on the pedestal 131, one end of the pedestal 131 can be articulated in this by pivot 134
On one fixing piece 121 of fixing seat 12, the twisting force device 13 can the pivot 134 be fulcrum relative to the fixing piece 121
In rotating in limited angle, and it is sheathed on the twisting force device 13 movably in the torsion generation mechanism 11, the resistance
Part 132 can contact the outer peripheral edge of the torsion generation mechanism 11 to provide frictional resistance, which has a screw hole 135 simultaneously
Positioned at 11 outside of torsion generation mechanism.The fixing seat 12 can be equipped with a hollow sleeve 122, and it is hollow to wear this by an adjustment bar 14
Sleeve 122, the adjustment bar 14 include a body of rod 141 and a head 142, which has an annular groove 143, by a bolt
144 end keeps the body of rod 141 hollow with respect to this in a fixed point across the hollow sleeve 122 and positioned at the annular groove 143
Sleeve 122 rotates, which is set to the top of the body of rod 141, and it is simultaneously outer that the bottom end of the body of rod 141 forms an external thread section 145
It is exposed to the hollow sleeve 122, the screw hole 135 of the connector 133 of the twisting force device 13 is movably bolted in the body of rod 141
External thread section 145.
The head 142 of the hand-holdable adjustment bar 14 of user simultaneously rotates the adjustment bar 14, makes the twisting force device 13
Connector 133 up or moves down with respect to the external thread section 145 of the body of rod 141, so drive the twisting force device 13 with
Pivot 134 is fulcrum rotation, decreases or increases the resistance piece 132 and the torsion generation mechanism of the twisting force device 13 whereby
Contact area between 11, to change the frictional resistance that the resistance piece 132 acts in the torsion generation mechanism 11.Such as Fig. 4 institute
Show, when the twisting force device 13 is rotated down with pivot 134 for fulcrum, the resistance piece 132 and torsion generation mechanism can be increased
11 contact area improves the torsion of the torsion generation mechanism 11 whereby.In conclusion the torsion of the torsion generation mechanism 11 is big
The small resistance for being applied to the torsion generation mechanism 11 with the resistance piece 132 is proportional to, when the torsion of the torsion generation mechanism 11
Power is bigger, and the exercycle 100 need to can just be stepped on bigger strength so that the torsion generation mechanism 11 rotates by also representing user.
In another embodiment, the resistance piece 132 of the twisting force device 13 can be replaced by magnet assemblies (not shown),
Magnet assemblies can be set on the pedestal 131 of the twisting force device 13 without contacting the torsion generation mechanism 11, by magnet assemblies
Reluctance force is provided for the torsion generation mechanism 11.It for example, is that fulcrum is downward with pivot 134 with the twisting force device 13
Rotation, increases the magnetic line of force of the magnet assemblies in torsion generation mechanism 11 to improve reluctance force, and then promotes torsion generation
The torsion of mechanism 11.
Fig. 1 and Fig. 5 are please referred to, torque detection system of the invention includes an angle detection module 20 and an arithmetic unit
21.The angle detection module 20 can be a gravitational accelerometer (G sensor), be set on the twisting force device 13, should
Angle detection module 20 according to itself axial (such as x-axis, y-axis or z-axis in three-dimensional space) relative to a reference direction (such as
Acceleration of gravity direction) tilt angle generate a voltage signal V1, the tilt angle and voltage signal V1 can be direct ratio
Or inverse ratio, wherein voltage signal V1 is an analog signal.For example, referring to FIG. 2, when the twisting force device 13 is located at
One initial position, the resistance piece 132 provide a minimum torsion not in contact with the torsion generation mechanism 11, the torsion generation mechanism 11,
Voltage signal V1 caused by the angle detection module 20 can be a minimum value at this time.Referring to FIG. 4, when the twisting force fills
13 are set to be rotated down with pivot 134 for fulcrum, which contacts the torsion generation mechanism 11 and torsion is gradually increased, this
When the angle detection module 20 with the twisting force device 13 rotate and move, gradually increase the tilt angle, the electricity
It can be incremental for pressing the size of signal V1.In other words, voltage signal V1 size and the torsion caused by the angle detection module 20
The torque magnitude of power generation mechanism 11 is related.The arithmetic unit 21 is electrically connected the angle detection module 20 to receive the voltage signal
V1, and a torque value is selected according to voltage signal V1 by lookup table mode, which corresponds to the torsion generation mechanism 11
Torque magnitude.
First preferred embodiment of torque detection system of the invention as shown in Figure 5, which includes a mould
Quasi-/digital quantizer 211 and a microcontroller 212.The analog/digital converter 211 be electrically connected the angle detection module 20 with
Voltage signal V1 is received, and voltage signal V1 is digitized into as a numerical value Sa.The microcontroller 212 is electrically connected the mould
For the output end of quasi-/digital quantizer 211 to receive numerical value Sa, which stores a torsion table of comparisons 213, should
The torsion table of comparisons 213 includes complex numerical value and the torque value for corresponding respectively to these numerical value.Therefore, the microcontroller 212
According to from the received numerical value Sa of the analog/digital converter 211, a corresponding torsion is selected in the torsion table of comparisons 213
Value, the torque value correspond to the torque magnitude of torsion generation mechanism 11 instantly.Foundation side about the torsion table of comparisons 213
Formula illustrates after holding.
The second preferred embodiment for please referring to torque detection system of the invention shown in Fig. 6 is preferably implemented relative to first
Example, the arithmetic unit 21 further include a differential amplifier 214, which has a first input end
(-), one second input terminal (+) and an output end, the first input end (-) receive a reference signal Vref, and the reference signal
Vref is definite value.In the second preferred embodiment, which can connect a voltage source 215, which produces
A raw fixed DC voltage is as reference signal Vref.Second input terminal (+) be electrically connected the angle detection module 20 with
Voltage signal V1 is received, which generates according to voltage signal V1 and reference signal Vref in the output end
One differential wave D1.The input terminal of the analog/digital converter 211 is electrically connected the output end of the differential amplifier 214 to receive
Differential wave D1, and differential wave D1 is converted into a differential values S1, which is electrically connected the analog/digital
The output end of converter 211 is to receive differential values S1, and the microcontroller 212 is according to differential values S1 from the torsion table of comparisons
213 select a torque value, which corresponds to the torque magnitude of torsion generation mechanism 11 instantly.It is compareed about the torsion
Establishing after mode is held for table 213 illustrates.
The third preferred embodiment of torque detection system of the invention shown in Fig. 7 is please referred to, the arithmetic unit 21 is further
It include a digital/analog converter 216, an input terminal and an output end for the digital/analog converter 216 is electrically connected
One output end of the microcontroller 212 and the first input end (-) of the differential amplifier 214, the microcontroller 212 pass through the number
Word/analog converter 216 generates reference signal Vref to the differential amplifier 214.The differential amplifier 214 is according to the voltage
Signal V1 and reference signal Vref exports a differential wave D2 to the analog/digital converter 211, the analog/digital converter
Differential wave D2 is converted to a differential values S2 by 211, and the microcontroller 212 is according to differential values S2 from the torsion table of comparisons
213 select a torque value, which corresponds to the torque magnitude of torsion generation mechanism 11 instantly.It is compareed about the torsion
Establishing after mode is held for table 213 illustrates.
Referring to FIG. 8, the torque detection system can further include an auxiliary detection module 22, the auxiliary detection module 22
It is set in the fixing seat 12, which also can be a gravitational accelerometer (G sensor).Since this is fixed
Seat 12 is fixed on ground, does not change position with the operation of user, therefore the exportable fixation of auxiliary detection module 22
Voltage signal.
Angle detection module 20 and auxiliary detection module 22 based on Fig. 8, please refer to torsion detection of the invention shown in Fig. 9
4th preferred embodiment of system, the angle detection module 20 and auxiliary detection module 22 are setting in the same direction, the arithmetic unit 21
It include differential amplifier 214 above-mentioned, analog/digital converter 211 and microcontroller 212, the of the differential amplifier 214
One input terminal (-) is electrically connected the auxiliary detection module 22, because the fixing seat 12 is fixed, makes the auxiliary detection module 22 can
Fixed voltage signal is exported so that as reference signal Vref, first input end (-) reception for the differential amplifier 214 should
Reference signal Vref.The differential amplifier 214 is according to the voltage signal V1 of the angle detection module 20 and the auxiliary detection module
22 reference signal Vref exports a differential wave D3 to the analog/digital converter 211, which will
Differential wave D3 is converted to a differential values S3, which selects according to differential values S3 from the torsion table of comparisons 213
One torque value, the torque value correspond to the torque magnitude of torsion generation mechanism 11 instantly.About the torsion table of comparisons 213
The mode of foundation illustrates after holding.
Angle detection module 20 and auxiliary detection module 22 based on Fig. 8, torsion detection system of the invention as shown in Figure 10
5th preferred embodiment of system, wherein the angle detection module 20 and auxiliary detection module 22 are oppositely arranged.The arithmetic unit
21 include a voltage adder 217 and differential amplifier 214 above-mentioned, analog/digital converter 211 and microcontroller 212,
Two input terminals of the voltage adder 217 are electrically connected the angle detection module 20 and auxiliary detection module 22, this is differential to put
The first input end (-) of big device 214 can connect a voltage source 218 to receive reference signal Vref, and second input terminal (+) is electric
Connect the output end of the voltage adder 217.The voltage signal V1 that the voltage adder 217 generates the angle detection module 20
And a total voltage signal V3, the differential amplifier 214 are generated after the voltage signal V2 aggregation of the auxiliary detection module 22 generation
A differential wave D4 is exported to the analog/digital converter 211, the mould according to the total voltage signal V3 and reference signal Vref
Differential wave D4 is converted to a differential values S4 by quasi-/digital quantizer 211, the microcontroller 212 according to differential values S4 from
The torsion table of comparisons 213 selects a torque value, which corresponds to the torque magnitude of torsion generation mechanism 11 instantly.It closes
Illustrate in establishing after mode is held for the torsion table of comparisons 213.
Mode is established about each torsion table of comparisons 213 in the aforementioned first to the 5th preferred embodiment, there is the present invention to turn round
For the exercycle 100 of force checking device before factory, producer can be rotated the adjustment bar 14 to change the torsion generation mechanism 11
Torque magnitude, and the arithmetic unit 21 generates in each stage numerical value Sa or differential values S1, S2, S3, S4 are recorded, and utilize one
Torsiometer (torque sensor) measures and records the torsion generation mechanism 11 corresponding practical torque value in each stage.
After completing a series of measurement, producer can be obtained complex numerical value Sa (or differential values S1, S2, S3, S4) and respectively correspond
In the plural torque value of these numerical value Sa (or differential values S1, S2, S3, S4), producer can by computer and burning device by this
The microcontroller 212 is written to establish the torsion table of comparisons 213 in a little numerical value Sa (or differential values S1, S2, S3, S4) and torque value,
The torsion table of comparisons 213 can be as shown in the table, and wherein the number of following table is only to illustrate to use.In general, these numbers are (or differential
Value) value with torque value is in a linear relationship.
| Numerical value Sa (or differential values S1, S2, S3, S4) | Torque value |
| 1 | 5 |
| 2 | 10 |
| 3 | 15 |
| 4 | 20 |
After the exercycle 100 factory, which has the torsion table of comparisons 213.When user is using above-mentioned
Before exercycle 100 carries out body building, user can rotate the adjustment bar 14 according to its physical ability situation or training strength, should with adjustment
The torsion of torsion generation mechanism 11.After adjusted, it is assumed that the microcontroller 212 is from the received number of analog/digital converter 211
Value Sa (or differential values S1, S2, S3, S4) is 2, then corresponding torque value is 10, achievees the purpose that torsion detects whereby.The micro-control
The torque value can be presented to user by a display and seen by device 212 processed, allowed user to learn and be currently set in torsion production
The torque magnitude of life structure 11.
In the second to the 5th preferred embodiment, by the setting of the differential amplifier 214, noise interference can be reduced, and
It promotes angle detection module 20 or assists the assembly error tolerance of detection module 22.Furthermore even if the manufacture of the exercycle 100
Environment is different from use environment, such as the exercycle 100 is placed at a horizontal plane when manufacture, and body-building when user uses
Vehicle 100 is placed at an inclined-plane, and for second, third preferred embodiment, user only needs to adjust the reference voltage Vref
Size can eliminate exercycle 100 and tilt caused error.
For the 4th preferred embodiment, the differential amplifier 214 generate differential wave be voltage signal V1 with
The relative signal of reference signal Vref, if the exercycle 100 is placed at an inclined-plane, the angle detection module 20 and auxiliary are detected
Module 22 is synchronous inclination, because the angle detection module 20 is setting in the same direction with auxiliary detection module 22, keeps the two defeated respectively
Voltage signal V1 out is equal with the variable quantity of reference signal Vref, then the opposite letter caused by the differential amplifier 214
It number is not influenced by inclined, therefore exercycle 100 can be excluded and tilt caused error.
For the 5th preferred embodiment, if the exercycle 100 is placed at an inclined-plane, although the angle detection module
20 with auxiliary detection module 22 be synchronous inclination, but the angle detection module 20 and auxiliary detection module 22 be it is oppositely arranged,
For example, it is assumed that the voltage signal V1 of the angle detection module 20 adds a positive variable quantity because of inclination, which detects mould
The voltage signal V2 of block 22 is also added because of inclination plus a negative variable quantity, the positive variable quantity and negative variable quantity equal in magnitude and
It cancels out each other, the total voltage signal V3 for generating the voltage adder 217 can eliminate the mistake caused by tilting because of exercycle 100
Difference.
Claims (1)
1. a kind of torque detection system, the twisting force device for being connected a fixing seat for detecting a torsion generation mechanism
The torque magnitude generated when applying resistance, which is characterized in that the torque detection system includes:
One angle detection module is set on the twisting force device, and the angle detection module is according to the twisting force device phase
The direction rotated to the torsion generation mechanism is mobile to change tilt angle, and the angle detection module inclines according to what is changed
Rake angle export a voltage signal, with the twisting force device with respect to the fixing seat move when change the big of the voltage signal
Small, which is a gravitational accelerometer；
One arithmetic unit is electrically connected the angle detection module to receive the voltage signal；
Wherein, which includes:
One analog/digital converter, is electrically connected the angle detection module, which is converted to a numerical value；
One microcontroller is electrically connected the analog/digital converter, which stores a torsion table of comparisons, should with basis
Numerical value selects the torque value from the torsion table of comparisons, which corresponds to the torque magnitude of the torsion generation mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510190249.8A CN106153231B (en) | 2015-04-21 | 2015-04-21 | Torque detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510190249.8A CN106153231B (en) | 2015-04-21 | 2015-04-21 | Torque detection system |
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| Publication Number | Publication Date |
|---|---|
| CN106153231A CN106153231A (en) | 2016-11-23 |
| CN106153231B true CN106153231B (en) | 2019-08-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510190249.8A Active CN106153231B (en) | 2015-04-21 | 2015-04-21 | Torque detection system |
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| CN1768246A (en) * | 2003-04-04 | 2006-05-03 | 斯耐普昂公司 | Sensing steering axis inclination and camber with an accelerometer |
| CN101124455A (en) * | 2005-01-12 | 2008-02-13 | 特林布尔公司 | Compensated measurement of angular displacement |
| CN201040159Y (en) * | 2007-04-28 | 2008-03-26 | 协记精密工业股份有限公司 | Body-building wheel set capable of pre-establish drag parameter |
| CN202614436U (en) * | 2012-04-25 | 2012-12-19 | 期美科技股份有限公司 | Torsion sensing device |
| TW201409005A (en) * | 2012-08-23 | 2014-03-01 | Giant Electric Vehicle Kunshan Co Ltd | Non-contact torque and rotational angle sensor |
-
2015
- 2015-04-21 CN CN201510190249.8A patent/CN106153231B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5027303A (en) * | 1989-07-17 | 1991-06-25 | Witte Don C | Measuring apparatus for pedal-crank assembly |
| CN2283880Y (en) * | 1996-10-31 | 1998-06-10 | 陈穗荣 | Readable and adjustable torsion controller |
| CN1768246A (en) * | 2003-04-04 | 2006-05-03 | 斯耐普昂公司 | Sensing steering axis inclination and camber with an accelerometer |
| CN101124455A (en) * | 2005-01-12 | 2008-02-13 | 特林布尔公司 | Compensated measurement of angular displacement |
| CN201040159Y (en) * | 2007-04-28 | 2008-03-26 | 协记精密工业股份有限公司 | Body-building wheel set capable of pre-establish drag parameter |
| CN202614436U (en) * | 2012-04-25 | 2012-12-19 | 期美科技股份有限公司 | Torsion sensing device |
| TW201409005A (en) * | 2012-08-23 | 2014-03-01 | Giant Electric Vehicle Kunshan Co Ltd | Non-contact torque and rotational angle sensor |
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| CN106153231A (en) | 2016-11-23 |
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Effective date of registration: 20230922 Address after: Floor 7, No. 207, Section 2, Diding Avenue, Neihu District, Taipei, Taiwan, China, China Patentee after: Taiwan Pai Le Teng Health Technology Co.,Ltd. Address before: Taiwan, Tainan, China Patentee before: Tonic Fitness Technology Inc. |