CN109708789A - A kind of modular wireless torque sensor device - Google Patents
A kind of modular wireless torque sensor device Download PDFInfo
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- CN109708789A CN109708789A CN201811575475.8A CN201811575475A CN109708789A CN 109708789 A CN109708789 A CN 109708789A CN 201811575475 A CN201811575475 A CN 201811575475A CN 109708789 A CN109708789 A CN 109708789A
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Abstract
The present invention provides a kind of modular wireless torque sensor device, including frictional wheel drive axis and electrical module, frictional wheel drive axis includes drive mandrel, power is passed to device and power spreads out of device, drive mandrel is separately connected power and is passed to device and power outflow device, realizes that power is passed to the synchronous rotary of device and power outflow device and drive mandrel；Power is incoming to be passed to device by drive mandrel for power, and power spreads out of device and power is spread out of described device by drive mandrel；Torque is generated by external driven member resistance when power outflow device spreads out of power, making drive mandrel, deformation occurs, measures the stress that deformation generates by foil gauge；Electrical module includes control circuit pcb board and foil gauge, and drive mandrel connects foil gauge, and control circuit pcb board connects the foil gauge, for acquiring the stress data and the stress data is sent to distal end host computer.Apparatus of the present invention modularization, can quick replacement, it is flexible, applied widely.
Description
Technical field
The present invention relates to electromechanical control fields, are related to force-feedback control, and in particular, to a kind of modular wireless torque
Sensor device.
Background technique
The change in torque of mechanical and power equipment is the important information of its operation conditions.Torsion-testing is that various engineering goods are opened
The essential content such as hair, quality inspection, optimal control, monitoring of working condition and fault diagnosis.It is especially turned round about equipment stress
Square sensor is widely used in the power-driven system optimization design and intelligent control of various mechanical equipments.
Measurement for Shaft Torque, common mode include metal strain chip and contactless.
Deformation occurs using shaft for metal strain chip, changes the survey for straining sheet resistance values size in shaft and realizing torque
Amount.And for the torque sensor using conducting slip ring, usually discrete is round end and fixing end, realizes object by conducting slip ring
Reason connection realizes strain signal in the transmitting of rotating part and stationary part, and foil gauge is connected in a manner of Wheatstone bridge full-bridge
The influence for realizing shielding moment of flexure, axial stress realizes that power supply, signal amplification are converted with A/D in fixing end.However conducting slip ring category
It in friction contact, therefore is inevitably present and wears and generate heat, thus limit the service life of conducting slip ring；Conduction is sliding
The poor contact of ring may cause signal fluctuation, cause biggish measurement error, and it is unsuccessful to even result in measurement.
Contactless usually to connect input and output shaft by torsion bar, torsion bar torsion causes the magnetic induction of input shaft upper spline to become
Change, the measurement that voltage signal realizes torque is converted by coil.Compared with metal strain chip torque sensor, although non-connect
Touch torque sensor has many advantages, such as that not easy to wear, the service life is long, but its resolving power is lower, measurement range is smaller, and structure is also more
Add complexity, size is larger, and cost is also higher than strain chip torque sensor.What it is due to non-contact measurement is dynamic torque,
And magnetic induction intensity is required, therefore also limit its application.
It for traditional torque sensor, generallys use wired mode and measures, in high-speed rotation, from shaft
It is more difficult to draw signal wire, it is easy to cause winding between signal wire or because caused by abrasion route breakage signal lose, lead
Cause measurement error or measurement failure.
In addition for some miniature precision occasions, such as medical operating etc. is higher to size and reliability requirement, in addition fills
Being conveniently detached for setting is also very necessary with replaceability, and device can either carry out cleaning-sterilizing easily and fast, also can be
A variety of occasions are replaced.
Through retrieving, the Chinese invention patent of Publication No. 105424244A, 104792445A is related separately to；The former uses
Non-contact measurement, quality and volume size are larger, influence vulnerable to external magnetic field, and cannot achieve the measurement of static torque, such as
Situations such as motor rotation blockage；The latter is using strain chip measurement, but size is larger, mostly uses the connection types such as welding, device can
Disassembly property is poor, and maintenance cost is higher.
Therefore, a kind of measurement accuracy of market in urgent need is high, small volume, easy to disassemble, the torque biography suitable for a variety of occasions
Sensor.
Summary of the invention
For the defects in the prior art, the object of the present invention is to provide a kind of modular wireless torque sensors to fill
Set, for miniature precision occasion and have stronger replaceability.
A kind of modular wireless torque sensor device is provided according to the present invention, and described device includes frictional wheel drive axis
And electrical module, wherein the electrical module is set on the frictional wheel drive axis,
The frictional wheel drive axis includes drive mandrel, power is passed to device and power spreads out of device, the drive mandrel
It is separately connected the power and is passed to device and power outflow device, realize that the power is passed to device and power outflow
The synchronous rotary of device and the drive mandrel；The power is incoming to be passed to described device by the drive mandrel for power,
The power is spread out of described device by the drive mandrel by the power outflow device；
The electrical module includes control circuit pcb board and foil gauge, and the drive mandrel connects the foil gauge, described
Torque is generated by external driven member resistance when power outflow device spreads out of power, making the drive mandrel, deformation occurs, passes through
The stress that the foil gauge measurement deformation generates；The control circuit pcb board connects the foil gauge, for acquiring the stress
The stress data is simultaneously sent to distal end host computer by data.By control circuit pcb board realize remote signal acquisition, it is convenient and
It is highly-safe.
Preferably, the frictional wheel drive axis further includes first bearing and second bearing, the first bearing and described
Two bearings are respectively arranged at the both ends of the drive mandrel, for realizing the connection with base；Base is fixing piece realization device
Support and fix effect.
It is gear that the power, which is passed to device,；
The power outflow device is transmission device, and the transmission device is friction pulley or gear, for realizing line biography
It is dynamic；It can also be used as other transmission devices.
The drive mandrel is thin-wall circular tubular transmission shaft, is uniformly distributed multiple strains on the thin-walled transmission shaft
Piece；The transmission shaft rotation is driven by the engagement of the gear, to drive the friction wheel from rotation.
Preferably, multiple holes are equipped with along central symmetry in the drive mandrel, realize the expansion of strain convenient for acquisition and surveyed
Amount；Multiple foil gauges and the hole uniform intervals are arranged.
Using thin-wall circular tubular transmission shaft, makes the boring of the drive mandrel and surface uniform pore openings are answered with expanding
Power, the high resolution of torque measurement.
Preferably, four are connected in the drive mandrel along four holes of center symmetric setting, the drive mandrel
The foil gauge, four foil gauges are uniformly distributed between four holes, four foil gauges respectively with the transmission
Mandrel axis is in 45° angle or 135 ° of angles, and four foil gauge directions are opposite two-by-two, real to realize the counteracting of axial stress
The measurement of existing tangential stress can cross the torque obtained in transmission process by experimental calibration；Four foil gauges composition favours this
Energization bridge, when the drive mandrel generates different size of deformation, the Wheatstone bridge exports different size of current value.
Preferably, the electrical module further includes connecting plate, power supply, wherein the power supply and the control circuit pcb board
The connecting plate is set and forms inner core, the power supply is the power supply of the control circuit pcb board, and the inner core is connected by connecting plate
It is connected to an end face of the drive mandrel, is placed in the power supply and the control circuit pcb board inside the drive mandrel.It is interior
Core has smaller size smaller and compact location arrangements, is set to drive mandrel, and device volume is small, and space utilization rate is high；
Preferably, the control circuit pcb board includes power supply circuit, amplifying circuit, analog to digital conversion circuit and wireless transmission
Module, in which: the input terminal of power supply circuit connects the power supply, and output end connects the Wheatstone bridge；Amplifying circuit it is defeated
Enter end and connect the Wheatstone bridge output end, output end connects analog-digital conversion circuit as described；The input terminal of analog to digital conversion circuit
The amplifying circuit is connected, output end connects the wireless transport module；The input terminal of wireless transport module connects the modulus
Conversion circuit, output end and the host computer wireless telecommunications；
The power supply circuit realizes voltage stabilizing function；
The amplifying circuit realizes the enlarging function of strain signal；
Analog-digital conversion circuit as described realizes that analog signals are converted to digital quantity signal；
The wireless transport module realizes the wireless transmission function of the strain signal.
Preferably, first bearing described in the frictional wheel drive axis, the second bearing, the gear and the friction
Wheel is respectively standard component, makes the frictional wheel drive axis mechanical module, it can be achieved that quick replacement and recycling；It is applicable in a variety of
Demand occasion.
Preferably, the mechanical module and the detachable setting of the electrical module are, it can be achieved that maintenance updates.
Preferably, the gear and the friction pulley and drive mandrel transition fit, are fastened by fixing piece.It can be selected tight
Determine screw fastening.
Preferably, the foil gauge is miniature foil gauge.
Preferably, the power supply be rechargeable type power supply, rechargeable type power supply respectively with control circuit pcb board, switch phase
Even, power supply and charge function are realized.
Preferably, the connecting plate is cylinder, and the connecting plate includes charging interface, switch, in which: the charging
Mouth is connected with the power supply, realizes convenient charging process；The switch is a single-pole double-throw switch (SPDT), to realize the confession of circuit
Electricity condition, off-position and charged state.It is highly-safe.
The working principle of preferred embodiment of the present invention is as follows: after inner core is placed in frictional wheel drive axis inside, it is double to stir hilted broadsword
Throw switch to power supply state, i.e. rechargable power supplies is the power supply of control circuit pcb board, and first bearing and second bearing are respectively clamped into
Base corresponds in card slot, and engages motor-driven gear with the gear in drive mandrel；Motor is connected with transmission gear, rotation
When drive frictional wheel drive axis gear rotation, power is passed to device；Friction pulley and external driven member, as line is driven with friction
Wheel etc. compresses and realizes frictional drive, power is spread out of.Since frictional wheel drive axis rotary drive generates torque, drive mandrel hair
Raw deformation, deformation occurs for four foil gauges for making to be distributed in drive mandrel, and Wheatstone bridge output electric current produces in electrical module
Changing.By replacing the friction pulley or gear of drive mandrel, such as gear or bevel gear that the replacement number of teeth, modulus are different, energy
Enough realize the application of different drive ratios, a variety of demands of a variety of occasions.
Compared with prior art, the present invention have it is following the utility model has the advantages that
Drive mandrel of the invention is boring and surface uniform pore openings are to expand stress, the resolution ratio of torque measurement
It is high；Using modularized design, in drive mandrel, power, which is passed to device and power outflow device, can realize quick replacement, realize a variety of
The transmitting of movement and torque, keeps present apparatus applicability wide；Mechanical module structure is simple, and easy to process and replacement can significantly reduce
Manufacture and maintenance cost；Mechanical module and the detachable setting of electrical module, cleaning convenient for safeguarding, upgrading, such as medical treatment row
Disinfection replacement of industry etc., also saves time when work.
Inner core of the invention has smaller size smaller and compact location arrangements, is placed in inside drive mandrel, and device volume is small,
Space utilization rate is high；Control circuit pcb board acquires the measurement data of foil gauge, can be realized the wireless transmission of signal, realizes remote
Journey signal acquisition is convenient and highly-safe；Power supply is convenient chargeable, high recycling rate；Single-pole double-throw switch (SPDT) realizes that circuit supplies
Three kinds of electricity, power-off and charging states, it is highly-safe.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon:
Fig. 1 is perspective view of an embodiment of the present invention；
Fig. 2 is the frictional wheel drive axial plane figure of one embodiment of the invention；
Fig. 3 is the inner core perspective view of one embodiment of the invention；
Fig. 4 is the circuit diagram of one embodiment of the invention；
Figure acceptance of the bid note is expressed as: first bearing 1, drive mandrel 2, friction pulley 3, the first miniature foil gauge 4, second are micro-
The miniature foil gauge 6 of type foil gauge 5, third, the 4th miniature foil gauge 7, gear 8, second bearing 9, control circuit pcb board 10, can
Charge power supply 11, MicroUSB interface 12, connecting plate 13, single-pole double-throw switch (SPDT) 14, charging interface 15, motor 16, transmission gear
17, power supply circuit 18, amplifying circuit 19, analog to digital conversion circuit 20, wireless communication module 21, host computer 22.
Specific embodiment
The present invention is described in detail combined with specific embodiments below.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection scope.
As shown in Figure 1-3, a kind of structural schematic diagram of the preferred embodiment for modular wireless torque sensor device,
The present apparatus can be divided into mechanical module and electrical module, include a frictional wheel drive axis and an inner core, frictional wheel drive in figure
Axis is the mechanical module of the present apparatus, and inner core is the electrical module of the present apparatus, and mechanical module and the detachable setting of electrical module can
Realize that maintenance updates.
Frictional wheel drive axis includes drive mandrel 2, power is passed to device and power spreads out of device, and drive mandrel 2 connects respectively
It connects power and is passed to device and power outflow device, realize that power is passed to device and power outflow device is synchronous with drive mandrel 2
Rotation；Power is incoming to be passed to the present apparatus by drive mandrel 2 for power, and power outflow device is passed power by drive mandrel 2
The present apparatus out.
As shown in Figure 1, figure middle gear 8 is that power is passed to device, friction pulley 3 is that power spreads out of device.
Gear 8 is connect with drive mandrel 2, and 2 transition fit of drive mandrel, and can be passed through holding screw and be realized fastening, real
The synchronous rotary of existing gear 8 and drive mandrel 2；Gear 8 is engaged with transmission gear 17, and transmission gear 17 is connected with motor 16, electricity
The rotation of machine 16 is rotated with nutating gear 17 and the gear 8 being engaged with, and to realize the rotation of drive mandrel 2, realization device is dynamic
Power is passed to.
Friction pulley 3 is connect with drive mandrel 2, and 2 transition fit of drive mandrel, and can be realized and be fastened by holding screw,
Realize the synchronous rotary with drive mandrel 2；The rotation of drive mandrel 2 drives friction pulley 3 to rotate, and realizes power outflow, can be used for reality
Existing line transmission.Power outflow device also can be replaced other transmission parts, such as gear.
As shown in Figure 1, frictional wheel drive axis further includes first bearing 1, second bearing 9.First bearing 1, second bearing 9 are divided
Not Wei Yu drive mandrel 2 both ends, realize with the connection of base, base is fixing piece, the support and connection of realization device.
Electrical module includes that control circuit pcb board 10 and the first miniature foil gauge 4, the second miniature foil gauge 5, third are miniature
Foil gauge 6, the 4th miniature foil gauge 7.
It is miniature that drive mandrel 2 connects the first miniature foil gauge 4, the second miniature foil gauge 5, the miniature foil gauge the 6, the 4th of third
Foil gauge 7 is generated torque by external driven member resistance when power outflow device spreads out of power, and making drive mandrel 2, deformation occurs,
The stress that deformation generates is measured by foil gauge；Control circuit pcb board 10 connects foil gauge, for acquiring stress data and will answer
Force data is sent to distal end host computer 22.
As shown in Figure 1, 2, drive mandrel 2 is thin-wall circular tubular transmission shaft, and is uniformly distributed and posts the first miniature foil gauge
4, the miniature foil gauge 6 of the second miniature foil gauge 5, third, the 4th miniature foil gauge 7, it is miniature in the first miniature foil gauge 4, second
It is driveed between the miniature foil gauge 6 of foil gauge 5, third and the 4th miniature foil gauge 7 there are four the hole that center piles, to realize strain
Expand, convenient for acquisition and measurement.
The miniature foil gauge 6 of first miniature foil gauge 4, the second miniature foil gauge 5, third and the 4th miniature foil gauge 7 and biography
Moving mandrel 2 is in 45° angle or 135 ° of angles, and direction is opposite two-by-two, to realize the counteracting of axial stress, realizes the survey of tangential stress
Amount can cross the torque obtained in transmission process by experimental calibration.
The present embodiment in the specific implementation, by the first miniature foil gauge 4, the second miniature foil gauge 5, the miniature foil gauge of third
6, the 4th miniature foil gauge 7 is pasted onto 2 surface of drive mandrel, replaces stickup in 45 °, 135 ° of directions with axis；Pass through sand paper edge
The inclined 45 ° of polishings in direction are pasted, the volatile liquids such as acetone or alcohol is reused and polishing region is cleaned to enhance cohesive force.Example
Such as: 502 seccotines can be used, using 502 glue by strain gauge adhesion to predetermined position, and sticked using polyethylene film
Thereon, pressing is to drain bubble.Motor 16 is micromotor, and transmission gear 17 is identical with 8 modulus of gear, and the number of teeth is less than gear
8, it realizes deceleration transmission, increases driving torque.
As shown in figure 3, inner core includes control circuit pcb board 10, rechargable power supplies 11, MicroUSB interface 12, connecting plate
13, single-pole double-throw switch (SPDT) 14, charging interface 15, in which: connecting plate 13 is cylinder, and connecting plate 13 connects the end of drive mandrel 2
Face is partially disposed in inner core inside drive mandrel 2.
Connecting plate 13 and control circuit pcb board 10,15 phase of rechargable power supplies 11, single-pole double-throw switch (SPDT) 14 and charging interface
Even, the circuit part of control circuit pcb board 10 connects the first miniature foil gauge 4, the second miniature foil gauge 5, the miniature strain of third
Piece 6 and the 4th miniature foil gauge 7 are, it can be achieved that tangential stress acquires, and the data of acquisition are sent to distal end host computer 22；
MicroUSB interface 12 is connected with control circuit pcb board 10, and is embedded in the corresponding notch of connecting plate 13, realizes the burning of program,
Convenient for more new procedures.
As shown in figure 4, the miniature foil gauge of the first miniature foil gauge 4, the second miniature foil gauge 5, third 6 and the 4th miniature is answered
Become the composition Wheatstone bridge of piece 7 and exports different size of current value when drive mandrel 2 generates different size of deformation；Control
10 circuit part of circuit pcb board includes power supply circuit 18, amplifying circuit 19, analog to digital conversion circuit 20 and wireless communication module 21,
Wherein: the input terminal of power supply circuit 18 connects power supply, and output end connects Wheatstone bridge；The input terminal of amplifying circuit 19 connects favour
Stone bridge output, output end connect analog to digital conversion circuit 20；The input terminal of analog to digital conversion circuit 20 connects amplifying circuit 19,
Output end connects wireless transport module 21；The input terminal of wireless transport module 21 connects analog to digital conversion circuit 20, output end with it is upper
Position 22 wireless telecommunications of machine；Power supply circuit 18 realizes pressure stabilizing and the function of supplying power of circuit；Amplifying circuit 19 realizes that Wheatstone bridge is answered
The enlarging function of varying signal；Analog to digital conversion circuit 20 realizes that analog signals are converted to digital quantity signal；Wireless communication module 21
The wireless transport modules such as bluetooth or Wi-Fi can be used, realize the wireless transmission function of strain signal.
Rechargable power supplies 11 are small-sized power supply, the function of supplying power of control circuit pcb board 10 are realized, with control circuit
Pcb board 10, single-pole double-throw switch (SPDT) 14 are connected with charging interface 15, wherein rechargable power supplies 11 and control circuit pcb board 10
Power supply circuit 18 is connected, and realizes power supply；Charging interface 15 is connected with extraneous power supply, is embodied as the charging of rechargable power supplies 11；Hilted broadsword
Commutator 14 can be realized the switching of three kinds of states, include power supply state, off-position and charged state, i.e., chargeable electricity
Source 11 is that the power supply of control circuit pcb board 10, cutting power supply and extraneous power supply are that rechargable power supplies 11 charge.
Above-described embodiment wireless torque sensor overall work principle:
After inner core is placed in frictional wheel drive axis inside, single-pole double-throw switch (SPDT) 14 is stirred to power supply state, i.e. rechargable power supplies
11 power for control circuit pcb board 10, and first bearing 1, second bearing 9 are caught in base and are corresponded in card slot, and make transmission gear
17 engage with gear 8；Motor 16 is connected with transmission gear 17, drives frictional wheel drive axis gear 8 to rotate when rotation, by power
Incoming device；The rotation of friction pulley 3 drives external driven member movement, and power is spread out of.Since frictional wheel drive axis is rotated by outside
Driven member resistance generates torque, and deformation occurs for drive mandrel 2, makes the be distributed in drive mandrel 2 first miniature foil gauge 4, the
Deformation occurs for the miniature foil gauge 6 of two miniature foil gauges 5, third and the 4th miniature foil gauge 7, Wheatstone bridge output current value hair
Changing after amplifying signal by amplifying circuit 19, by analog to digital conversion circuit 20, converts digital letter for analog signal
Number, host computer 22 is sent to by wireless communication module 21, host computer 22 handles by such as MATLAB, QT software and shows biography
The torque value of moving mandrel 2.The present invention uses modularized design, and mechanical module is separated with electrical module, 11 electricity of rechargable power supplies
When insufficient or device is needed to be serviced, cleans or updated, device is removed from rack, it can convenient separation frictional wheel drive axis and interior
Core realizes that charging, cleaning or program update；In frictional wheel drive axis, first bearing 1 and second bearing 9, friction pulley 3, gear 8
It is standard component, replaces friction pulley 3 or gear 8 in drive mandrel 2, such as replaces the number of teeth, modulus different gear or bevel gear
Deng can be realized the application of different drive ratios, a variety of occasion different demands.
The fixed form and control circuit chip of the above embodiment of the present invention, rack and single unit system can be according to existing skills
Art selection and implementation, as long as realizing above-mentioned effect and purpose.By optimizing drive mandrel 2,10 and of control circuit pcb board
The size of rechargable power supplies 11, wireless torque sensor size designed by the present invention can be according to requiring to be reduced or be put
Greatly.
The wireless torque sensor that the above embodiment of the present invention is related to, overall dimensions are small, are able to achieve static, dynamic torque
Measurement, torque measurement resolving power are high；Apparatus module, 2 outer friction wheel 3 of drive mandrel and gear 8 can realize quick replacement, real
The transmitting of existing multi-motion and torque, device applicability are extensive；Mechanical part is partially separated with inner core electronic component, convenient for clear
Clean maintenance.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited to above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring substantive content of the invention.
Claims (10)
1. a kind of modular wireless torque sensor device, it is characterised in that: described device includes frictional wheel drive axis and electricity
Gas module, wherein the electrical module is set in the frictional wheel drive axis；
The frictional wheel drive axis includes drive mandrel, power is passed to device and power spreads out of device, the drive mandrel difference
It connects the power and is passed to device and power outflow device, realize that the power is passed to device and power outflow device
With the synchronous rotary of the drive mandrel；The power is incoming to be passed to described device by the drive mandrel for power, described
Power spreads out of device and the power is spread out of described device by the drive mandrel；
The electrical module includes control circuit pcb board and foil gauge, and the drive mandrel connects the foil gauge, the power
Torque is generated by external driven member resistance when outflow device spreads out of power, making the drive mandrel, deformation occurs, by described
Foil gauge measures the stress that deformation generates；The control circuit pcb board connects the foil gauge, for acquiring the stress data
And the stress data is sent to distal end host computer.
2. a kind of modular wireless torque sensor device according to claim 1, it is characterised in that: have with next
Kind or various features:
The frictional wheel drive axis further includes first bearing and second bearing, and the first bearing and the second bearing are distinguished
The both ends of the drive mandrel are set to, for realizing the connection with base；The base is fixing piece, realizes described device
It supports and connect；
It is gear that the power, which is passed to device,；
The power outflow device is transmission device, and the transmission device is friction pulley or gear, for realizing line transmission；
The drive mandrel rotation is driven by the engagement of the gear, to drive the friction wheel from rotation；
The drive mandrel is thin-wall circular tubular transmission shaft, is uniformly distributed multiple foil gauges on the thin-walled transmission shaft.
3. a kind of modular wireless torque sensor device according to claim 2, it is characterised in that: the transmission core
Multiple holes are equipped with along central symmetry on axis, realize the expansion of strain convenient for acquisition and measurement；Multiple foil gauges and the hole
Uniform intervals arrangement.
4. a kind of modular wireless torque sensor device according to claim 3, it is characterised in that: the transmission core
Four foil gauges, four foil gauges are connected on axis along four holes of center symmetric setting, the drive mandrel
It is in respectively 45° angle or 135 ° of angles with the drive mandrel axis, and four foil gauge directions are opposite two-by-two, to realize axial direction
The measurement of tangential stress is realized in the counteracting of stress；Four foil gauges form Wheatstone bridge, when the drive mandrel generates
When different size of deformation, the Wheatstone bridge exports different size of current value.
5. a kind of modular wireless torque sensor device according to claim 1, it is characterised in that: the electrical mould
Block further includes connecting plate, power supply, wherein and the power supply and the control circuit pcb board are set to the connecting plate and form inner core,
The power supply is the power supply of the control circuit pcb board, and the inner core is connected to the drive mandrel by the connecting plate
One end face is placed in the power supply and the control circuit pcb board inside the drive mandrel.
6. a kind of modular wireless torque sensor device according to claim 5, it is characterised in that: have as next
Kind or various features:
The control circuit pcb board includes power supply circuit, amplifying circuit, analog to digital conversion circuit and wireless transport module, in which:
The input terminal of the power supply circuit connects the power supply, and output end connects the Wheatstone bridge；The input of the amplifying circuit
End connects the Wheatstone bridge output end, and output end connects analog-digital conversion circuit as described；The input of analog-digital conversion circuit as described
End connects the amplifying circuit, and output end connects the wireless transport module；The input terminal of the wireless transport module connects institute
State analog to digital conversion circuit, output end and the host computer wireless telecommunications；
The power supply circuit realizes voltage stabilizing function；
The amplifying circuit realizes the enlarging function of strain signal；
Analog-digital conversion circuit as described realizes that analog signals are converted to digital quantity signal；
The wireless transport module realizes the wireless transmission function of the strain signal.
7. a kind of modular wireless torque sensor device according to claim 5, it is characterised in that: the connecting plate
Including charging interface, switch, in which: the charging interface is connected with the power supply, realizes convenient charging process；The switch is
One single-pole double-throw switch (SPDT), to realize power supply state, off-position and the charged state of circuit.
8. a kind of modular wireless torque sensor device according to claim 1, it is characterised in that: the power supply is
Rechargeable type power supply；The connecting plate is cylinder.
9. a kind of modular wireless torque sensor device, feature described in any one of -8 according to claim 1
It is: the frictional wheel drive axis and the detachable setting of the electrical module.
10. a kind of modular wireless torque sensor device, feature described in any one of -8 according to claim 1
Be: the gear and the friction pulley and the drive mandrel transition fit are fastened by fixing piece.
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| CN201811575475.8A CN109708789A (en) | 2019-02-02 | 2019-02-02 | A kind of modular wireless torque sensor device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811575475.8A CN109708789A (en) | 2019-02-02 | 2019-02-02 | A kind of modular wireless torque sensor device |
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| CN109708789A true CN109708789A (en) | 2019-05-03 |
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| CN201811575475.8A Pending CN109708789A (en) | 2019-02-02 | 2019-02-02 | A kind of modular wireless torque sensor device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111262386A (en) * | 2019-11-22 | 2020-06-09 | 北京力信德华科技有限公司 | Intelligent protection device |
| CN111351658A (en) * | 2020-03-12 | 2020-06-30 | 南京理工大学 | Friction resistance moment detection device for screw reverser |
| CN111846006A (en) * | 2020-07-22 | 2020-10-30 | 北京理工大学 | Integrated joint with strain gauge torque feedback |
| CN111844120A (en) * | 2020-07-22 | 2020-10-30 | 北京理工大学 | Torque feedback joint |
| CN118310660A (en) * | 2024-06-11 | 2024-07-09 | 锐马（福建）电气制造有限公司 | Measuring method of wear-resistant electric brush communication torque sensor |
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| CN111844120B (en) * | 2020-07-22 | 2023-04-07 | 北京理工大学 | Torque feedback joint |
| CN118310660A (en) * | 2024-06-11 | 2024-07-09 | 锐马（福建）电气制造有限公司 | Measuring method of wear-resistant electric brush communication torque sensor |
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