CN205262652U - Torque -measuring apparatus - Google Patents
Torque -measuring apparatus Download PDFInfo
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- CN205262652U CN205262652U CN201521020318.2U CN201521020318U CN205262652U CN 205262652 U CN205262652 U CN 205262652U CN 201521020318 U CN201521020318 U CN 201521020318U CN 205262652 U CN205262652 U CN 205262652U
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Abstract
The utility model discloses a torque -measuring apparatus, include: a permanent magnet rotor includes first pivot and sets up at the epaxial first permanent magnet of first commentaries on classics, the 2nd permanent magnet rotor changes epaxial second permanent magnet with setting up at the second including the second pivot, first pivot and the coaxial setting of second pivot, first pivot is connected with the measured piece, the second pivot is fixed or follow the measured piece free rotation, just the magnetic pole of first permanent magnet and second permanent magnet matches and be provided with the air gap each other, torque -measuring apparatus still includes, angle sensor is used for measuring first pivot hand drive and when rotating, turned angle's between a permanent magnet rotor and the 2nd permanent magnet rotor difference. Above -mentioned torque -measuring apparatus can be applied to the measurement of various torque values, and the commonality is good, and the precision is high.
Description
Technical field
The utility model relates to torque measurement technical field, is specifically related to a kind of torque-measuring apparatus.
Background technology
Torque-measuring apparatus of the prior art mainly comprises strain gauge transducer and torsion bar, utilizes this surveyThe method of amount measurement device moment of torsion is: if need to measure static torque time, by one end of torsion bar withMeasured piece connects and rotates under the driving of measured piece, and the other end is fixed up, and passes through like this strain-typeSensor is measured the micro-strain amount of torsion bar under input torque effect and is changed to measure moment of torsion through signalValue; If need to measure dynamic torque, one end of torsion bar is connected with measured piece and at input torqueDriving under rotate, the other end freely rotates, and so also can measure torsion bar by strain gauge transducerMicro-strain amount under input torque effect records torque value indirectly.
Torque-measuring apparatus of the prior art and utilize this measurement mechanism to carry out the method for torque measurementThere is following technical problem: owing to need to indirectly measuring torque value by the deflection of measuring torsion bar,If when the torque value of input exceedes measurement category, easily make torsion bar twist off, and then damage moment of torsionMeasurement mechanism; If the moment of torsion of input is too small, be difficult to torsion bar is out of shape delicately, thus impactThe sensitivity of torque-measuring apparatus and precision. Therefore, in torque-measuring apparatus of the prior artTorsion bar is difficult to meet the measurement of the torque value that amplitude of variation is larger, causes its versatility poor, often needsTo be the different flexible torsion bars of torque-measuring apparatus configuration of different measuring scope.
In addition, in prior art, also exist one not need by measuring torsion bar under input torque effectDeflection can indirectly obtain the method for torque value, for example, Chinese periodical document " heavy still bottoms magneticPower driving cog wheel pump magnetic coupling torque arithmetic " (Yang Fengyu, what is the tinkling of pieces of jade again) disclose a kind of to permanent magnetism couplingClose the analytical Calculation formula of the torque value that device transmits, it is completely by the mode of theoretical model and supposition,Derivation provides the relation equation between permanent magnetic coupling torque value and multi-parameter, and this kind of method do not need to surveyThe deflection of amount torsion bar, therefore, has overcome and has utilized torsion bar to measure the poor defect of versatility, but, byBe the theoretical derivation formula under assumed conditions in this kind of method, inevitably omit and supposed oneA little parameters, and analytic expression complexity, thus cause the accuracy of result of calculation to be affected.
In sum, how to provide the torque-measuring apparatus that a kind of versatility is high and provide a kind of generalProperty torque measuring method high and that certainty of measurement is high is the technical barrier also not solving in prior art.
Utility model content
Therefore, the technical problems to be solved in the utility model is to overcome torque measurement of the prior artMethod cannot meet higher versatility and compared with the technological deficiency of high measurement accuracy simultaneously, thereby providesThe torque-measuring apparatus that a kind of versatility is high and certainty of measurement is high.
For this reason, a kind of torque-measuring apparatus that the utility model provides, comprising:
The first p-m rotor, comprises the first rotating shaft and is arranged on the first permanent magnet in the first rotating shaft;
The second p-m rotor, comprises the second rotating shaft and is arranged on the second permanent magnet in the second rotating shaft;
Described the first rotating shaft and the second rotating shaft coaxially arrange, and described the first rotating shaft is connected with measured piece, instituteState the second rotating shaft and fix or freely rotate with measured piece, and described the first permanent magnet and the second permanent magnetMagnetic pole mutually mate and be provided with air gap;
Described torque-measuring apparatus, also comprises,
Angular transducer, for measuring described the first rotating shaft when being driven and rotating, described the first permanent magnetismThe difference of the rotational angle between rotor and the second p-m rotor.
Further, torque-measuring apparatus of the present utility model, described the first permanent magnet and the second permanent magnetThere is identical magnetic pole logarithm.
Further, torque-measuring apparatus of the present utility model, described the first permanent magnet and the second permanent magnetThe quantity of magnetic pole logarithm be all not less than 18 pairs.
Further, torque-measuring apparatus of the present utility model, described the first permanent magnet and the second permanent magnetThe arrangement mode of magnetic pole is N-S utmost point alternative arrangement.
Further, torque-measuring apparatus of the present utility model, described the first permanent magnet and the second permanent magnetThe arrangement mode of magnetic pole is Haier's Bake array.
Further, torque-measuring apparatus of the present utility model, described angular transducer comprises, is arranged onThe first angular transducer on the first p-m rotor, and be arranged on the second angle on the second p-m rotorSensor.
Further, torque-measuring apparatus of the present utility model, also comprises holder, for storing through examinationTest the angular deviation value-torque curve of foundation;
Processor, obtains the difference of the rotational angle between the first permanent magnet and the second permanent magnet and readsAngular deviation value-torque curve is to calculate the torque value of measured piece.
The technical scheme that the utility model provides, tool has the following advantages:
1. torque-measuring apparatus of the present utility model, by angular transducer obtain the first p-m rotor withThe difference of the anglec of rotation between the second p-m rotor, and according to the difference of the anglec of rotation calculate bySurvey the torque value of part; In whole measuring process, do not need torsion bar not need by measuring torsion bar yetDeflection is measured moment of torsion indirectly, thereby has avoided available technology adopting torsion bar to measure exist generalThe technological deficiency of the poor and low precision of property, above-mentioned torque-measuring apparatus can be applied to various torque valuesMeasure, versatility is good; And this device both can be used for tested static moment of torsion also can be tested dynamically and turn roundSquare, wide accommodation; Meanwhile, above-mentioned torque-measuring apparatus has utilized permanent magnetism in prior art wellA part of structure of coupling device is transformed on this basis, makes the knot of torque-measuring apparatusStructure is simple, cheap for manufacturing cost; In addition, between the first p-m rotor and the second p-m rotor, there is gasGap, in the time that the torque value of inputting is excessive, occurs " to beat by the first p-m rotor and the second p-m rotorSliding ", prevent whole torque-measuring apparatus locking, protect the safety of whole device and measured piece.
2. torque-measuring apparatus of the present utility model, the magnetic pole of the first p-m rotor and the second p-m rotorWhen logarithm is identical, after the first rotating shaft and the second rotating shaft slow-roll stabilization, the first rotating shaft and the second rotating shaftRotating speed is identical, and the angular deviation value of the first rotating shaft and the second rotating shaft can be because the variation of time changes,The angular deviation value of the first rotating shaft and the second rotating shaft can the random time after slow-roll stabilization be surveyedAmount, makes to measure convenient.
3. torque-measuring apparatus of the present utility model, magnet steel is arranged and is adopted N-S utmost point alternative arrangement and HaierBake array (HalbachArray) all can make turning round of the first p-m rotor and the second p-m rotor transmissionBetween square and angular deviation value, form the form of Sine distribution, make angular deviation value-torque curve for moreApproach sine curve, make field calibration more convenient, more accurate to the measurement of moment of torsion.
4. torque-measuring apparatus of the present utility model, by memory and processor are set, makes torque valueCalculating can realize automation, computational speed is fast.
Brief description of the drawings
In order to be illustrated more clearly in the utility model detailed description of the invention or technical side of the prior artCase, does the accompanying drawing to required use in detailed description of the invention or description of the Prior Art simply belowIntroduce, apparently, the accompanying drawing in the following describes is embodiments more of the present utility model, rightIn those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also basisThese accompanying drawings obtain other accompanying drawing.
Fig. 1 is the structural representation of permanent magnet N-S utmost point alternative arrangement mode in the utility model;
Fig. 2 is the structural representation of the torque-measuring apparatus of cartridge type;
Fig. 3 is the structural representation of the torque-measuring apparatus of disc type;
Fig. 4 is the angular deviation value-torque curve that meets SIN function relation in the utility model.
Description of reference numerals:
1-the first rotating shaft; 2-the first permanent magnet; 3-the second permanent magnet; 4-the second rotating shaft.
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical solution of the utility model is clearly and completely described, aobviousSo, described embodiment is the utility model part embodiment, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative workThe every other embodiment obtaining under prerequisite, belongs to the scope that the utility model is protected.
In description of the present utility model, it should be noted that, term " " center ", " on ", D score,Orientation or the position relationship of the instructions such as " left side ", " right side ", " vertically ", " level ", " interior ", " outward " areBased on orientation shown in the drawings or position relationship, be only that the utility model and simplification are for convenience of description retouchedState, instead of instruction or the hint device of indication or element must have specific orientation, with specificallyOrientation structure and operation, therefore can not be interpreted as restriction of the present utility model. In addition term ",One ", " second ", " the 3rd " be only for describing object, and can not be interpreted as instruction or hint phase counterweightThe property wanted.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited,Term " installation ", " being connected ", " connection " should be interpreted broadly, and for example, can be fixing companiesConnecing, can be also to removably connect, or connects integratedly; Can be mechanical connection, can be also electricityConnect; Can be to be directly connected, also can indirectly be connected by intermediary, can be two elementsInner connection. For the ordinary skill in the art, can concrete condition understand above-mentioned artThe concrete meaning of language in the utility model.
In addition related technical characterictic in the different embodiments of described the utility model,The conflict of will not forming each other just can mutually combine.
Embodiment 1
The present embodiment provides a kind of torque-measuring apparatus, comprising:
The first p-m rotor, comprises the first rotating shaft 1 and is arranged on the first permanent magnet 2 in the first rotating shaft 1;
The second p-m rotor, comprises the second rotating shaft 4 and is arranged on the second permanent magnet 3 in the second rotating shaft 4;
Described the first rotating shaft 1 and the second rotating shaft 4 coaxially arrange, and described the first rotating shaft 1 connects with measured pieceConnect, described the second rotating shaft 4 fixing (in the time measuring static torque) or with measured piece freely rotate (whenWhile measuring dynamic torque), and the magnetic pole of described the first permanent magnet 2 and the second permanent magnet 3 mates also mutuallyAnd be provided with air gap;
Described torque-measuring apparatus, also comprises,
Angular transducer, for measure described the first p-m rotor be subject to input torque drive and rotate time,The difference of the rotational angle between described the first p-m rotor and the second p-m rotor.
Above-mentioned torque-measuring apparatus, can also serve as the transferring elements of moment of torsion, and, owing to being provided withAngular transducer and processor, therefore, it can obtain the first p-m rotor by angular transducerAnd the difference of the anglec of rotation between the second p-m rotor, and calculate according to the difference of the anglec of rotationThe torque value of measured piece, in whole measuring process, does not need torsion bar not need by measuring torsion bar yetDeflection measure moment of torsion, thereby avoided available technology adopting torsion bar to measure the versatility existingThe technological deficiency of difference and low precision, above-mentioned torque-measuring apparatus can be applied to the survey of various torque valuesAmount, versatility is good; And this device both can be used for tested static moment of torsion also can test dynamic torque,Wide accommodation; Meanwhile, above-mentioned torque-measuring apparatus has utilized permanent magnet coupling in prior art wellA part of structure of device is transformed on this basis, makes the structure letter of torque-measuring apparatusSingle, cheap for manufacturing cost, and broken through traditional permanent magnet coupling device and can only serve as torque transfer partThe defect that part uses; In addition, between the first p-m rotor and the second p-m rotor, there is air gap,, whenThe torque value of input when excessive, by skidding between the first p-m rotor and the second p-m rotor, is preventedStop whole torque-measuring apparatus locking, protect the safety of whole device and measured piece. Preferably, above-mentionedIn torque-measuring apparatus, described the first permanent magnet 2 and the second permanent magnet 3 have identical magnetic pole logarithm.
When the magnetic pole logarithm of the first p-m rotor and the second p-m rotor is identical, the first rotating shaft 1 andAfter two rotating shaft 4 slow-roll stabilizations, the first rotating shaft 1 is identical with the rotating speed of the second rotating shaft 4, the first rotating shaft 1Constant with the angular deviation value of the second rotating shaft 4, the angle between the first p-m rotor and the second p-m rotorDegree deviate is convenient to measure and is read.
Preferably, the arrangement mode of described the first p-m rotor and the second p-m rotor magnetic pole is preferably seaThat Bake array (HalbachArray) certainly, can be also N-S utmost point alternative arrangement, as Fig. 1 instituteBe shown N-S utmost point alternative arrangement. N-S utmost point alternative arrangement and Haier's Bake array (HalbachArray) are equalCan make moment of torsion and the angular deviation value of the first p-m rotor and the second p-m rotor transmission be sinusoidal bentLine, more convenient to the demarcation of angle deviate-torque curve like this, more accurate to the measurement of moment of torsion.
Preferably, angular transducer comprises, is arranged on the first angular transducer on the first p-m rotor,Be arranged on the second angular transducer (not shown) on the second p-m rotor.
In the time measuring dynamic torque, the first angular transducer and the second angular transducer measure respectively firstThe anglec of rotation of p-m rotor and the second p-m rotor, the anglec of rotation recording is transferred in processor,Processor subtracts each other two values to take absolute value and obtains angular deviation value. In the time measuring static torque, due toThe second p-m rotor is fixed, and that root rotating shaft being fixed does not rotate, and is arranged in this root rotating shaftThe reading of the second angular transducer is 0 forever, and therefore, the first angular transducer anglec of rotation is angleDeviate. Angular deviation value-torque curve equation that processor is demarcated according to experimental data calculates actual measurementThe torque value that angular deviation value is corresponding.
Further, torque-measuring apparatus also comprises holder, for storing the angle of setting up through testDeviate-torque curve;
Processor, obtains the difference of the rotational angle between the first permanent magnet 2 and the second permanent magnet 3 alsoReading angular deviate-torque curve is to calculate the torque value of measured piece.
By memory and processor are set, make the calculating of torque value can realize automation, calculate speedDegree is fast.
In above-mentioned torque-measuring apparatus, the layout shape of magnet steel in the first p-m rotor and the second p-m rotorFormula can be cartridge type, and as shown in Figure 2, that is, the first permanent magnet 2 and the second permanent magnet 3 are established all and putIn the circle wall of cylindrical shape installation portion, the first permanent magnet 2 and the second permanent magnet 3 are the first rotating shaft 1 HeIn the tubular circle wall of the second rotating shaft 4, be axial arranged. The first p-m rotor and the second p-m rotor magneticThe arrangement form of steel can be also disc type, as shown in Figure 3, that is, and the first permanent magnet 2 and the second permanent magnetismBody 3 is established and is all put on the end face of disc installation portion, and the first permanent magnet 2 and the second permanent magnet 3 areOn the dish type end face of one rotating shaft 1 and the second rotating shaft 4, be radial arrangement.
Embodiment 2
The present embodiment provides the torque-measuring apparatus of recording in a kind of embodiment of utilization 1 to carry out torque measurementMethod.
When it is when measuring dynamic torque, comprise the following steps:
S1: set up and there is the first rotating shaft 1 in torque-measuring apparatus and be arranged on first by test dataThe first p-m rotor of the first permanent magnet 2 in rotating shaft 1 and there is the second rotating shaft 4 and be arranged on secondAngular deviation value-torque curve equation of the second p-m rotor of the second permanent magnet 3 in rotating shaft 4;
S2: utilize described in measured piece driving torque measurement mechanism the first p-m rotor to rotate, described theTwo p-m rotors freely rotate with measured piece;
S3: in the time that the first p-m rotor and the second p-m rotor reach run-in synchronism, utilize angle sensorDevice is measured the angular deviation value between the first p-m rotor and the second p-m rotor. In Fig. 2 and Fig. 3, beSchematic diagram while measuring dynamic torque, the first rotating shaft 1 is connected with measured piece, and the first rotating shaft 1 is inputtedMoment of torsion and rotating, due to the magnetic couple effect between the first p-m rotor and the second p-m rotor,One p-m rotor drives the second p-m rotor to rotate, when the first p-m rotor and the second p-m rotor reachAfter synchronous rotational speed, and the angular deviation value (△ φ) of measurement two p-m rotors (under original state, firstBetween p-m rotor and the second p-m rotor, angular deviation is zero as standard);
S4: the angular deviation value-torque curve equation that utilizes processor to set up according to experimental data calculatesThe torque value (T1 of angular deviation value φ 1 correspondence) corresponding to angular deviation value of actual measurement.
When it is when measuring static torque, comprise the following steps:
S1: set up the first p-m rotor and the second p-m rotor in torque-measuring apparatus by test dataAngular deviation value-torque curve equation;
S2: the first p-m rotor is applied to moment of torsion, and the second p-m rotor is fixed.
S3: measure this value input processor after the first p-m rotor angular deviation numerical stability;
S4: the angular deviation value-torque curve equation that utilizes processor to set up according to experimental data calculatesThe torque value (T1 of angular deviation value φ 1 correspondence) corresponding to angular deviation value of actual measurement.
Technique scheme is core technology scheme of the present utility model, and the main thought of its design is:First by experiment data are set up angular deviation value-torque curve equation of torque-measuring apparatus, then logicalCross the angular deviation value of measuring the first p-m rotor and the second p-m rotor, according to angular deviation value-moment of torsionThe torque value that curve calculation angular deviation value is corresponding, has realized the measurement of moment of torsion. Measured wholeCheng Zhong, does not need torsion bar not need the deflection by measuring torsion bar to measure moment of torsion yet, thereby avoidsAvailable technology adopting torsion bar measure the technological deficiency of the poor and low precision of versatility existing, above-mentionedTorque measuring method can be applied to measures various torque values, and versatility is good; And the method both canAlso can test dynamic torque, wide accommodation for tested static moment of torsion; In addition, the first permanent magnetism turnsBetween son and the second p-m rotor, be provided with air gap, in the time that input torque value is excessive, the first p-m rotorCan skid because exceeding testing range with the second p-m rotor, prevent whole torque-measuring apparatus locking,Protect the safety of whole device and measured piece.
As embodiment preferably, describedly set up in torque-measuring apparatus first forever by test dataThe step of angular deviation value-torque curve equation of magnet rotor and the second p-m rotor specifically comprises:
S11: to the first p-m rotor or a series of known moments of torsion of one of them input of the second p-m rotorValue, another p-m rotor fix angular deviation value-torque curve equation of static torque (demarcate) orFreely rotate (angular deviation value-torque curve equation of demarcating dynamic torque) with measured piece;
S12: record under each known input torque effect corresponding first forever by angular transducerAngular deviation value between magnet rotor and the second p-m rotor;
S13: the data acquisition system of a series of angular deviation values that obtain and torque value mapping relations is passed through bentThe mode of line matching obtains angular deviation value-torque curve equation.
Because being adopts the mode of curve, demarcate angular deviation value-turn round by measuring multi-group dataSquare curvilinear equation, the data point of measurement is more, and the curve obtaining is more accurate, adopts this measuring methodCan reach very high certainty of measurement, it should be noted that, curve is prior art.
Introduce a kind of measuring method of concrete curve below:
To the first rotating shaft or the second rotating shaft input torque T 1, T2 of increase continuously ... Tn;
Satisfied 0 < T1 < T2 < ... < Tn;
Record a series of torque value T1, T2 ... the first p-m rotor that Tn is corresponding and the second p-m rotor itBetween angular deviation value
According to the mapping relations one by one between the angular deviation value of two p-m rotors and torque value, obtain angleDegree deviate and moment of torsion data sample
According to angular deviation value and torque curve measured data, to angle deviate and torque curve equationCarry out curve fitting (such as adopting least square method), obtain optimum undetermined coefficient A and B;
Thereby obtain angular deviation value-torque curve equation. As a kind of alternative angular deviation value of setting upThe method of-torque curve, adopts the first p-m rotor to have identical magnetic pole logarithm with the second p-m rotorTorque-measuring apparatus measure, describedly set up the first permanent magnetism in torque-measuring apparatus by test and turnThe step of the angular deviation value-torque curve between son and the second p-m rotor specifically comprises:
S11: to the first p-m rotor or the second p-m rotor input moment of torsion of increase continuously;
S12: by turning round of the critical moment that skids between the first p-m rotor and the second p-m rotorSquare value and angular deviation value are determined respectively amplitude and cycle;
S13: determine angular deviation value-torque curve equation by described cycle and amplitude.
Because described the first p-m rotor and the second p-m rotor magnet steel are arranged and are adopted N-S utmost point alternative arrangementOr Haier's Bake array, the expression formula of the angular deviation value-torque curve of two p-m rotors is very approachingY=Asin (2 π x/T ') sine curve (more approaching sine curve when magnetic pole logarithm is higher), wherein AFor amplitude, T ' is the cycle. In this expression formula, only A and T ' are unknown number, to the first rotating shaft 1 or theThe moment of torsion that two rotating shaft 4 inputs increase continuously, by sending out between the first p-m rotor and the second p-m rotorTorque value (this value the is maximum torque) T of the raw critical moment skiddingmaxWith angular deviation value (maximumThe angular deviation value of correspondence under torque value) φ ', and amplitude A=Tmax, cycle T ' and=4 φ ', thereforeThe experimental measurement mode of this angular deviation value-torque curve is simple, convenient and swift, can obtain rapidly angleAs shown in Figure 4, in Fig. 4, abscissa is two p-m rotor angular deviation value φ to degree deviate-torque curve,Ordinate is torque T. Angular deviation value-torque curve equation that test obtains is deposited in processor,Then accept calling of processor.
It should be noted that, while measuring dynamic torque, conventionally turn at the first p-m rotor and the second permanent magnetismEach on son an angular transducer is set, measures respectively the anglec of rotation of the first rotating shaft 1 and the second rotating shaft 4Degree, subtracts each other the anglec of rotation of the first rotating shaft 1 recording and the second rotating shaft 4 can obtain angular deviationValue. When measuring when static torque, due to the first p-m rotor or the second p-m rotor, one of them is fixed,Thereby only need arrange an angular transducer. By the angular deviation value input processor of actual measurement, by locatingThe computing of reason device obtains torque value.
Obviously, above-described embodiment is only for example is clearly described, and not to the side of enforcementThe restriction of formula. For those of ordinary skill in the field, also can on the basis of the above descriptionTo make other changes in different forms. Here without also giving all embodimentsWith exhaustive. And the apparent variation of being extended out thus or variation are still created in the utility modelProtection domain among.
Claims (7)
1. a torque-measuring apparatus, is characterized in that, comprising:
The first p-m rotor, comprises the first rotating shaft (1) and is arranged on first in the first rotating shaft (1)Permanent magnet (2);
The second p-m rotor, comprises the second rotating shaft (4) and is arranged on second in the second rotating shaft (4)Permanent magnet (3);
Described the first rotating shaft (1) and the second rotating shaft (4) coaxially arrange, described the first rotating shaft (1) withMeasured piece connects, and described the second rotating shaft (4) is fixed or freely rotated with measured piece, and described firstThe magnetic pole of permanent magnet (2) and the second permanent magnet (3) mutually mates and is provided with air gap;
Described torque-measuring apparatus, also comprises,
Angular transducer, for measuring described the first rotating shaft (1) when being driven and rotating, described firstThe difference of the rotational angle between p-m rotor and the second p-m rotor.
2. torque-measuring apparatus according to claim 1, is characterized in that, described the first permanent magnetismBody (2) and the second permanent magnet (3) have identical magnetic pole logarithm.
3. torque-measuring apparatus according to claim 2, is characterized in that, described the first permanent magnetismThe quantity of the magnetic pole logarithm of body (2) and the second permanent magnet (3) is all not less than 18 pairs.
4. according to the torque-measuring apparatus described in claim 1-3 any one, it is characterized in that, described inThe arrangement mode of the first permanent magnet (2) and the second permanent magnet (3) magnetic pole is N-S utmost point alternative arrangement.
5. according to the torque-measuring apparatus described in claim 1-3 any one, it is characterized in that, described inThe arrangement mode of the first permanent magnet (2) and the second permanent magnet (3) magnetic pole is Haier's Bake array.
6. according to the torque-measuring apparatus described in claim 1-3 any one, it is characterized in that, described inAngular transducer comprises, is arranged on the first angular transducer on the first p-m rotor, and is arranged onThe second angular transducer on two p-m rotors.
7. according to the torque-measuring apparatus described in claim 1-3 any one, it is characterized in that, also bagDraw together holder, for storing angular deviation value-torque curve of setting up through test;
Processor, obtains rotational angle between the first permanent magnet (2) and the second permanent magnet (3)Difference reading angular deviate-torque curve are to calculate the torque value of measured piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521020318.2U CN205262652U (en) | 2015-12-09 | 2015-12-09 | Torque -measuring apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521020318.2U CN205262652U (en) | 2015-12-09 | 2015-12-09 | Torque -measuring apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205262652U true CN205262652U (en) | 2016-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201521020318.2U Active CN205262652U (en) | 2015-12-09 | 2015-12-09 | Torque -measuring apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205262652U (en) |
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- 2015-12-09 CN CN201521020318.2U patent/CN205262652U/en active Active
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