CN106323518A - Dynamic torque sensing device - Google Patents
Dynamic torque sensing device Download PDFInfo
- Publication number
- CN106323518A CN106323518A CN201610999071.6A CN201610999071A CN106323518A CN 106323518 A CN106323518 A CN 106323518A CN 201610999071 A CN201610999071 A CN 201610999071A CN 106323518 A CN106323518 A CN 106323518A
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- CN
- China
- Prior art keywords
- sensing
- rotary shaft
- dynamic torque
- sensing device
- sensor circuit
- 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.)
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Classifications
-
- 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
- G01L3/04—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft
- G01L3/10—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
- G01L3/101—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating involving magnetic or electromagnetic means
- G01L3/104—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating involving magnetic or electromagnetic means involving permanent magnets
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention relates to a dynamic torque sensing device. The dynamic torque sensing device comprises a rotary shaft, wherein the rotary shaft is connected with a sensing body, the sensing body comprises relative fixed part and a relative rotary part, the relative fixed part is connected with the rotary shaft, the relative rotary part is connected with an external load, the sensing body is provided with at least one sensor for measuring torque between the relative fixed part and the relative rotary part, the sensing body is provided with a first sensing circuit and a first wireless sensing element, the first sensing circuit is electrically connected with the first wireless sensing element, and the sensors are electrically connected with the first sensing circuit. The dynamic torque sensing device is further provided with a second sensing circuit and a second wireless sensing element, the second sensing circuit is static relative to the rotary shaft, the second wireless sensing element is electrically connected with the second sensing circuit, and the first wireless sensing element is in signal transmission with the second wireless sensing element. The dynamic torque sensing device has the advantages torque signals are transmitted wirelessly, external power supply is not needed, and the device is exquisite in structure, high in sensing precision and high in universality.
Description
Technical field
The present invention relates to dynamic torque sensing device, especially relate to a kind of dynamically sensing rotation torque size, rotate speed
The mechanics sensing device of degree and rotation direction.
Background technology
Along with the raising of present people's living standard with day by day to Intelligent life and the intellectual technology higher requirement of proposition, turn
The sensing of dynamic dynamic force moment becomes apparent from, and application is the most extensive, such as the pedal moment sensor of Moped Scooter, electric tool
The sensing of moment, output sensing of motor torque etc., rotary body is required for turning round to sense it by dynamic force moment sensor
Square size meets different needs.But the principle of existing torque sensor is generally inductance type or photo-electric.Inductance
The simple in construction of formula, but signal is the most weak, drift is big, interference free performance is poor；Anti-interference and the water proof and dust proof performance of photo-electric is all
Poor.
Summary of the invention
It is an object of the invention to provide a kind of delicate structure, sensing precision dynamic torque high, highly versatile senses device.
The present invention is achieved through the following technical solutions above-mentioned purpose: a kind of dynamic torque senses device, including rotary shaft, institute
State rotary shaft to connect and have inductor, described inductor to include the portion that is relatively fixed and rotate against portion, described in be relatively fixed portion and institute
State rotary shaft to connect, described in the portion of rotating against connect outside load, described inductor is provided with at least one described in measure
Being relatively fixed portion and described rotate against the sensor of moment of torsion between portion, described inductor is provided with the first sensor circuit and the first nothing
Line sensing element, described first sensor circuit and the first wireless induction element are electrically connected with, described sensor and described first sense
Answering circuit to be electrically connected with, described dynamic torque sensing device is additionally provided with the second static sensor circuit of the most described rotary shaft and the
Two wireless induction elements, described second wireless induction element is electrically connected with described second sensor circuit, described first wireless sense
Answer and carry out signal transmission between element and the second wireless induction element.
Further, described first sensor circuit provides electric energy by self-generating power device or external wireless transfer mode.
Further, described first sensor circuit is by described first wireless induction element and described second wireless induction unit
Electric energy transmission between part provides electric energy.
Further, described dynamic torque sensing also includes high magnetic permeability soft magnet material body, described high magnetic permeability soft magnetism
Body material bodies is except other spaces between described first wireless induction element and described second wireless induction element.
Further, described second sensor circuit connects has output line, described rotary shaft and the second sensor circuit altogether
With being provided with at least one for sensing the speed sensor that described rotary shaft rotates.
Further, it is relatively fixed portion described in and described rotates against the connecting portion being provided with hollow out between portion.
Further, described rotary shaft is provided with described in connect the fixed part in the portion that is relatively fixed.
Further, the portion of rotating against described in is provided with the load connection for connecting external loading.
Further, described rotary shaft is provided with fixed cover cylinder, and the periphery of described fixed cover cylinder is arranged with second bowl of set,
Described second bowl of set and external stability, the inside of described second bowl of set is provided with the second bearing, and described second bearing holder (housing, cover) is located at described
In rotary shaft.
Further, the periphery in the portion that rotates against of described inductor is arranged with clutch shaft bearing, outside described clutch shaft bearing
Being arranged with first bowl of set week, described first bowl of set and external stability, described inductor is rotated by described clutch shaft bearing.
Compared with prior art, dynamic torque of the present invention sensing device provide the benefit that: by moment sensing Hall with
The change in location of Magnetitum carrys out induced moment signal, powers sensor circuit simultaneously and torque signals is entered by the way of being wirelessly transferred
Row transmission, has sensing indirectly, length in service life, delicate structure, sensing precision height, the advantage of highly versatile.
Accompanying drawing explanation
Fig. 1 is the structural representation of dynamic torque sensing device.
Fig. 2 is the schematic diagram of another angle of Fig. 1.
Fig. 3 is the structural representation of rotary shaft.
Fig. 4 is the exploded perspective view being enclosed within Fig. 3 rotary shaft right-hand member structure.
Fig. 5 is the exploded perspective view being enclosed within Fig. 3 rotary shaft left end structure.
Fig. 6 is the structural representation of first bowl of set.
Fig. 7 is the structural representation of second bowl of set.
Fig. 8 is wireless induction schematic diagram.
In figure, label is as follows:
1-rotary shaft；
2-inductor；
3-moment sensing Hall；
4-Magnetitum；
5-the first sensor circuit；
6-the first wireless induction element；
7-the second wireless induction element；
8-the second sensor circuit；
9-fixed cover cylinder；
10-output line；
11-velocity response element；
12-the second sensor circuit fixes groove；
13-Magnetitum groove；
14-moment sensing Hall fixes groove；
15-the first sensor circuit fixes groove；
16-fixed part；
17-load connection；
18-threaded body；
19-first bowl set；
20-clutch shaft bearing；
21-the first jump ring；
22-high magnetic permeability soft magnet material body；
23-the second bearing；
24-second bowl set；
25-magnet ring；
26-the second jump ring；
27-bearing groove；
28-alignment pin；
29-locating slot；
30-sealing member.
Detailed description of the invention
Referring to Fig. 1 to Fig. 8, dynamic torque sensing device, including rotary shaft 1, the two ends of rotary shaft 1 are equipped with square toes,
Square toes are used for connecting outside force application apparatus, and rotary shaft 1 is provided with fixed part 16, and fixed part 16 is screw thread, spline, gear etc., fixing
Portion 16 connects has inductor 2, inductor 2 include the portion that is relatively fixed (figure is not marked) and rotate against portion's (figure is not marked), is relatively fixed
Portion is connected with fixed part 16, and the portion of rotating against is provided with load connection 17, and load connection 17 is for connecting the load of outside, negative
Carrying connecting portion 17 is gear, spline, screw thread etc., and the outside of load connection 17 is provided with threaded body 18, carries out for connecting screw
Locking, it is ensured that what load connection was connected with external loading stablizes, is relatively fixed portion and rotates against and be provided with hollow out between portion
Connecting portion (figure is not marked), the connecting portion of hollow out can amplify the relative change in location in the portion of rotating against.Inductor 2 is provided with at least one
Individual being relatively fixed portion and rotate against the sensor of moment of torsion between portion for measuring, sensor includes moment sensing Hall 3 and magnetic
Stone 4, the portion of being relatively fixed is provided with the first sensor circuit and fixes groove 15, and the first sensor circuit is provided with the first sensor circuit in fixing groove 15
5, the first sensor circuit 5 connects moment sensing Hall 3, and the portion of being relatively fixed is provided with the moment sensing of accommodating moment sensing Hall 3
Hall fixes groove 14, and the portion of rotating against is provided with Magnetitum groove 13, is provided with the magnetic being oppositely arranged with moment sensing Hall 3 in Magnetitum groove 13
Stone 4, the first sensor circuit is fixed groove 15 and is sealed by sealing member 30.
Rotary shaft 1 is provided with fixed cover cylinder 9, and fixed cover cylinder 9 is provided with the second sensor circuit and fixes groove 12, the second faradism
Road is provided with the second sensor circuit 8 in fixing groove 12, the second sensor circuit 8 connects output line 10, rotary shaft 1 and the second sense
Circuit 8 is answered jointly to be provided with at least one for sensing the speed sensor that rotary shaft 1 rotates.In present embodiment, velocity response
Device includes magnet ring 25 and velocity response element 11, and magnet ring 25 is socketed in rotary shaft 1 and fixes, and is distributed several ferrum in magnet ring 25
Magnetics, ferromagnetic component can be the element such as Magnetitum, iron material body, and magnet ring 25 is disposed adjacent with velocity response element 11,
Rotary shaft 1 drives magnet ring 25 to rotate, and velocity response element 11 senses speed by the flux change amount on reaction magnetic ring 25 surface.
In other embodiments, it is also possible to sense the velocity variations of rotary shaft by the way of photoinduction.Second sensor circuit is fixed
Groove 12 is sealed by sealing member 30.
Inductor 2 is provided with the first wireless induction element 6, and the first sensor circuit 5 and the first wireless induction element 6 electrically connect
Connecing, dynamic torque sensing device is additionally provided with the second wireless induction element 7, and the second wireless induction element 7 is equal with the second sensor circuit 8
Relative rotation axi 1 is in relative static conditions, and the second wireless induction element 7 is electrically connected with the second sensor circuit 8, and first is wireless
Signal transmission is carried out between sensing element 6 and the second wireless induction element 7.The power supply mode of the first sensor circuit includes: first
Sensor circuit is powered by self-generating power device, battery or wireless transmission mode provides electric energy；Or the first sensor circuit passes through
Electric energy transmission between first wireless induction element and the second wireless induction element provides electric energy.Dynamic torque sensing also includes height
Pcrmeability soft magnet material body 22, high magnetic permeability soft magnet material body 22 is positioned at except the first wireless induction element 6 and second is wireless
Other spaces between sensing element 7, high magnetic permeability soft magnet material body 22 is independent component in the present embodiment, at other
In embodiment, high magnetic permeability soft magnet material body necessarily technique can also be coated in other element surfaces or local surfaces, Gao Ci
Conductance soft magnet material body 22 is it can be avoided that or reduction electromagnetic wave is to the metal generation eddy current in surrounding structure, because eddy current can make
Metal generates heat, and reduces Mechanical Property of Metal, avoids simultaneously or reduce wireless induction element carrying out signal and the shadow of electric energy transmission
Ring.
The outer surface of fixed cover cylinder 9 is provided with alignment pin 28, and the periphery of fixed cover cylinder 9 is arranged with second bowl of set 24, the
The inner surface of two bowls of sets 24 is provided with the locating slot 29 coordinated with alignment pin 28, fixed cover cylinder 9 and second bowl of set 24 and fixes, and second
Bowl set 4 and external stability.The inside of second bowl of set 24 is provided with the second bearing 23, and the second bearing 23 is set in rotary shaft 1.
The periphery in the portion that rotates against of inductor 2 is arranged with clutch shaft bearing 20, and the periphery of clutch shaft bearing 20 is arranged with first
Bowl set 19, first bowl set 19 inner surface be provided with bearing groove 27, clutch shaft bearing 20 is arranged in bearing groove 27, first bowl set 19 with
External stability, inductor 2 is rotated by clutch shaft bearing 20.Clutch shaft bearing 20 is entered by the first jump ring 21 and the second jump ring 26
Row axial limiting.
The operation principle of the present invention is: outside force application apparatus is rotated axle by the square toes at rotary shaft 1 two ends and rotates, from
And the portion of being relatively fixed of the inductor being connected with rotary shaft is applied a torsion, owing to the portion of rotating against with inductor passes through
Load connection 17 connects the load having outside, and what the resistance that outside load produces was applied to inductor rotates against in portion,
Form a reciprocal torsion, so under the common effect of two torsion, causing the portion of rotating against and be relatively fixed portion
Position relatively changes, and is sensed by the moment sensing Hall 3 being positioned in the portion of being relatively fixed and is positioned in the portion of rotating against
The change in location of Magnetitum 4, thus obtain corresponding torque signals, this torque signals passes through the first sensor circuit 5 to be wirelessly transferred
Mode be sent to the second sensor circuit 8, the second sensor circuit 8 by output line 10 by torque signals transmission set to the external world
Standby, it is responsible for the first wireless induction element 6 of being wirelessly transferred and device can also be powered by the second wireless induction element 7, with
Time, device can also utilize the flux change amount on velocity response element 11 reaction magnetic ring 25 surface to sense speed, rate signal
Transmit to external device also by output line 10.
Above-described is only some embodiments of the present invention.For the person of ordinary skill of the art, not
On the premise of departing from the invention design, it is also possible to making some deformation and improvement, these broadly fall into the protection model of the present invention
Enclose.
Claims (10)
1. a dynamic torque sensing device, including rotary shaft, it is characterised in that: described rotary shaft connects inductor, described
Inductor includes the portion that is relatively fixed and rotate against portion, described in be relatively fixed portion and be connected with described rotary shaft, described in rotate against
Portion connect outside load, described inductor is provided with at least one and is relatively fixed portion described in measure and described rotates against portion
Between the sensor of moment of torsion, described inductor is provided with the first sensor circuit and the first wireless induction element, described first faradism
Road and the first wireless induction element are electrically connected with, and described sensor is electrically connected with described first sensor circuit, described dynamic torsion
Square sensing device is additionally provided with the second static sensor circuit of the most described rotary shaft and the second wireless induction element, described second nothing
Line sensing element is electrically connected with described second sensor circuit, described first wireless induction element and the second wireless induction element it
Between carry out signal transmission.
Dynamic torque the most according to claim 1 sensing device, it is characterised in that: described first sensor circuit passes through self
TRT or external wireless transfer mode provide electric energy.
Dynamic torque the most according to claim 1 sensing device, it is characterised in that: described first sensor circuit is by described
Electric energy transmission between first wireless induction element and described second wireless induction element provides electric energy.
Dynamic torque the most according to claim 1 sensing device, it is characterised in that: described dynamic torque sensing also includes height
Pcrmeability soft magnet material body, described high magnetic permeability soft magnet material body is positioned at except described first wireless induction element and described
Other spaces between two wireless induction elements.
Dynamic torque the most according to claim 1 sensing device, it is characterised in that: described second sensor circuit connects letter
Number output lead, described rotary shaft and the second sensor circuit are provided with at least one jointly for sensing the speed that described rotary shaft rotates
Induction apparatus.
Dynamic torque the most according to claim 1 sensing device, it is characterised in that be relatively fixed portion described in: relative with described
The connecting portion of hollow out it is provided with between rotating part.
Dynamic torque the most according to claim 1 sensing device, it is characterised in that: described rotary shaft is provided with for connecting
State the fixed part in the portion of being relatively fixed.
Dynamic torque the most according to claim 1 sensing device, it is characterised in that the portion of rotating against described in: is provided with for even
Connect the load connection of external loading.
Dynamic torque the most according to claim 1 sensing device, it is characterised in that: described rotary shaft is provided with fixing sleeve
Body, the periphery of described fixed cover cylinder is arranged with second bowl of set, described second bowl of set and external stability, described second bowl of set interior
Portion is provided with the second bearing, and described second bearing holder (housing, cover) is located in described rotary shaft.
Dynamic torque the most according to claim 1 sensing device, it is characterised in that: described inductor rotate against portion
Periphery be arranged with clutch shaft bearing, the periphery of described clutch shaft bearing is arranged with first bowl of set, described first bowl of set and external stability,
Described inductor is rotated by described clutch shaft bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610999071.6A CN106323518A (en) | 2016-11-14 | 2016-11-14 | Dynamic torque sensing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610999071.6A CN106323518A (en) | 2016-11-14 | 2016-11-14 | Dynamic torque sensing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106323518A true CN106323518A (en) | 2017-01-11 |
Family
ID=57816038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610999071.6A Pending CN106323518A (en) | 2016-11-14 | 2016-11-14 | Dynamic torque sensing device |
Country Status (1)
| Country | Link |
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| CN (1) | CN106323518A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107664552A (en) * | 2017-11-01 | 2018-02-06 | 昆山攀登电子科技有限公司 | A kind of dynamic pickup non-contact power and data transferring structure |
| CN107806949A (en) * | 2017-12-08 | 2018-03-16 | 广州市快易达工贸有限公司 | A kind of dynamic pickup structure |
| CN108254110A (en) * | 2017-11-01 | 2018-07-06 | 昆山攀登电子科技有限公司 | A kind of non-contact fluted disc torque sensor device of dynamic |
| CN109572916A (en) * | 2019-01-14 | 2019-04-05 | 昆山攀登电子科技有限公司 | A kind of electric bicycle column foot speed of torque sensing device |
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| CN107664552A (en) * | 2017-11-01 | 2018-02-06 | 昆山攀登电子科技有限公司 | A kind of dynamic pickup non-contact power and data transferring structure |
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| CN107806949A (en) * | 2017-12-08 | 2018-03-16 | 广州市快易达工贸有限公司 | A kind of dynamic pickup structure |
| CN109572916A (en) * | 2019-01-14 | 2019-04-05 | 昆山攀登电子科技有限公司 | A kind of electric bicycle column foot speed of torque sensing device |
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