CN107664747A - A kind of single-blade motor power experimental provision and test method - Google Patents
A kind of single-blade motor power experimental provision and test method Download PDFInfo
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- CN107664747A CN107664747A CN201710786778.3A CN201710786778A CN107664747A CN 107664747 A CN107664747 A CN 107664747A CN 201710786778 A CN201710786778 A CN 201710786778A CN 107664747 A CN107664747 A CN 107664747A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
Abstract
A kind of single-blade motor power experimental provision and test method.The lower flange of tension and torque compound sensor is fixed on sensor holder upper surface center；Sensor holder is fixed on the upper end of support bar, and support bar lower end is arranged on the center of base.The fixing end of motor cabinet is arranged on the upper surface of tension and torque compound sensor upper flange；The lower surface vibrating sensor that speed probe is fixed on the motor cabinet cantilever end is attracted on the external peripheral surface in the middle part of the support bar.The actual condition of operating mode unmanned plane dynamical system on experiment porch proposed by the present invention is similar, reduce unnecessary interference, obtained data are true and reliable, with the characteristics of measuring accuracy is high, test function is more, disclosure satisfy that it is various in the case of test request, effectively reduce the alignment error and test error etc. in test process, dynamical system optimized from the angle of motor helical oar matching, such optimization can greatly promote the performance of unmanned plane, there is very big realistic meaning.
Description
Technical field
The present invention relates to unmanned air vehicle technique field, specifically a kind of single-blade motor power experimental provision and test method.
Background technology
Dynamical system is the important component of unmanned plane, directly affects the performance of unmanned plane.With electronic unmanned plane
Extensive use and the market demand, the dynamical system especially motor power system of unmanned plane get a larger development.But
Still jejune place, the especially matching of motor-propeller still be present in unmanned plane dynamical system, and motor-propeller
Matching directly influences the efficiency of whole dynamical system, influences the very important endurance index of unmanned plane.Motor-propeller at present
Match and be often empirically designed, this design method has many deficiencies, only by experiment porch to dynamical system
System carry out scientifically, the measurement that quantifies could meet the research that motor-propeller matches.
Designer will have the research of science, this just needs extremely when motor-propeller matching to dynamical system
Accurate parameter of electric machine data.But because the various models and data of motor are uneven, designer hardly results in precisely
The parameter of electric machine.The current parameter of electric machine mainly has two sources：First, the data that motor producer provides.Data this kind of first carry
What is supplied is extremely limited, often only several data points, rather than the curve for including partial data that designer needs.Together
When, because manufacturer's number one relation can not possibly provide the specific experiment situation of the parameter of electric machine, and this experimental conditions are exactly
Required for dynamic system analysis；Further, the authenticity and reliability of the parameter of electric machine that manufacturer provides leave a question open, the mistake of this data
Difference influences very big on the result of motor matching.Second, motor user's measurement obtains parameter.The motor measuring apparatus of specialty is main
Foreign countries are relied on, price is millions of extremely expensive easily, and the approach for so allowing for this acquisition parameter of electric machine limits to very much.
By dynamic test device similar in retrieval, the publication No. announced on 2 1st, 2017 is the U's of CN 205919960
Utility model patent《A kind of unmanned plane dynamic test system》The publication No. announced with June 4th, 2014 is CN 203629733
U utility model patent《Electronic unmanned plane dynamic test device》, both unmanned plane dynamic test devices employ horizontal structure
Type, tensile test employ weighing sensor, and this dynamic test device has many deficiencies, firstly because horizontal configuration causes
Gravity produces torque to tension and torque compound sensor, and this can greatly increase measurement error, furthermore, the connection side of weighing sensor
Formula causes installation process to be inconvenient, and finally, existing dynamic test device is limited to kinetic parameter test approaches, can only gradually survey
Try one therein, such as pulling force.Several deficiencies greatly limit application of the dynamic test device in unmanned plane field above.
Therefore need it is a can the accurate important parameter such as measurement motor working speed, moment of torsion, pulling force and vibration, this essence
True parameter can cause designer quantitatively to assess a motor, can also carry out more preferable motor-propeller type selecting with
The efficiency for reaching higher is equipped with, thus can preferably carry out dynamic system analysis and the work of research.
The content of the invention
To overcome the costliness of measuring apparatus present in prior art, test approaches few, and the step that measuring accuracy is low, this
Invention proposes a kind of single-blade motor power experimental provision and test method.
It is compound that single-blade motor power experimental provision proposed by the present invention includes base, support bar, sensor holder, tension and torque
Sensor, vibrating sensor, speed probe and motor cabinet.Wherein, the lower flange of the tension and torque compound sensor is fixed
At sensor holder upper surface center；Sensor holder is fixed on the upper end of the support bar, and the support bar lower end is arranged on the bottom
In the screwed hole of centre of seat.The fixing end of motor cabinet is arranged on the upper surface of the tension and torque compound sensor upper flange；Institute
State the lower surface that speed probe is fixed on the motor cabinet cantilever end.The vibrating sensor is attracted in the middle part of the support bar
On external peripheral surface.
The disc surfaces in the base are evenly equipped with three adjustment bolts, by the height for adjusting each adjustment bolt
Degree, to adjust the levelness of the base.
One end of described motor cabinet is fixing end, and the fixing end is in cross；It is evenly equipped with the criss-cross lath
For installing the motor installing hole of motor and the installation screw for being connected with the upper flange of tension and torque compound sensor.The electricity
The other end of support has speed probe mounting hole.
The circumferential surface of described tension and torque compound sensor upper flange has the flange groove of annular, and steel is wound with groove
Line, one end of the steel wire are fixed on sensor mounting hole, and the other end is connected with electronic tension meter.
The external peripheral surface at described support bar both ends is flank.
It is proposed by the present invention using the single-blade motor power experimental provision carry out dynamic experiment detailed process be：
Step 1, motor and propeller are installed.
Motor and propeller are connected by sub warhead propeller seat.
Step 2, the correction of single screw motor power experimental provision.
The correction of the single screw motor power experimental provision include chassis level degree correction and tension and torque it is compound
The correction of sensor.
The correction of the tension and torque compound sensor includes pulling force correction and torque correction, wherein：
Pulling force corrects：
Apply power vertically upward to motor by electronic tension meter, make electronic tension meter show value and tension and torque compound
The error amount ＜ 3% that sensor is shown.Detailed process is：
The gravity factor zero being subject to tension and torque compound sensor.Electronic tension meter is linked up with and sub warhead propeller seat
It is connected.Pulling force F vertically upward is applied to the sub warhead propeller seat by electronic tension meter.Pass through tension and torque composite sensing
Device obtains the test value F of the pulling force0.Calculate described to the pulling force F that sub warhead propeller seat applies and the compound biography of tension and torque
Sensor obtains the test value F of pulling force0Difference, i.e. F-F0If F-F0＜ 3%, difference then complete correction in allowed band；
If difference outside allowed band, check motor, experiment porch perpendicularity and reinstall experiment porch, re-calibrate drawing
Power, until F-F0Difference in the error range of permission.
Torque correction：
The fixing end of the steel wire is wrapped on flange groove, the free end of steel wire and the hook of electronic tension meter connect.
Pulling force F is applied to the flange of tension and torque compound sensor by electronic tension meter*.Pulling force F*With flange groove circumferential surface
Distances of the point of contact A away from tension and torque compound sensor center is the arm of force, the radius R of the arm of force=flange groove groove bottom circumference.It is logical
Cross electronic tension meter and show pulling force F*With arm of force R product, the application moment of torsion of tension and torque compound sensor is used as using the product
T.Obtain testing torque T by the tension and torque compound sensor0.Calculate the application torque T and test torque T0Difference
Value, i.e. T-T0＜ 3%, if difference in allowed band, completes correction；If difference outside allowed band, checks
The skew of tension and torque compound sensor installation process simultaneously reinstalls experiment porch, re-calibrates moment of torsion, until deviation is permitting
Perhaps in error range.
Step 3, the connection of power instrument.
By the power instrument of circuit test by electron speed regulator respectively with the motor connection.Recorded by electron speed regulator
Electric current, voltage and power of the motor described in test under working speed.
Step 4, the test of single-blade motor power experimental provision.
Single-blade motor power experimental provision test be to propeller and motor at work caused pulling force, moment of torsion,
The display and collection of rotating speed and vibration data；Motor feed circuit parameter during motor work is recorded simultaneously.Detailed process is：
I by motor driven propeller with<500r/min rotation speed operation.Check tension and torque compound sensor, rotating speed
Sensor, vibrating sensor are in steady-working state and display is normal.
II determines the rotating speed of propeller.Sensing magnetic sheet is pasted in the lower aerofoil of propeller blade wing tip, and makes the sensing magnetic
Piece is corresponding with the speed probe being disposed below.When the motor is rotated with operating rate, passed by described rotating speed
Sensor records number of revolutions of the sensing magnetic sheet in a cycle, so as to obtain sensing the rotating speed of magnetic sheet；The sensing magnetic sheet turns
Speed is the rotating speed of propeller.The rotating speed of the propeller is the working speed Nr/min of motor.
III adjusts motor speed according to the motor working speed Nr/min of determination.To the compound biography of tension and torque when motor works
Sensor transmits pulling force and moment of torsion.
IV pulling force and moment of torsion received by tension and torque compound sensor real-time display, resulting pulling force and moment of torsion
As motor and pulling force and moment of torsion of the propeller under working speed.
V measures caused vibration acceleration in motor work by vibrating sensor, and the real-time display vibration adds
The numerical value of speed, obtain motor and Results of Vibration of the propeller under working speed.
So far, motor and pulling force, moment of torsion, rotating speed and vibration-testing data of the propeller under working speed are obtained.
The present invention, which can test unmanned plane single screw motor power system, includes power supply, electricity tune, motor and propeller
Important parameter, such as：Power, electric current, voltage, pulling force, moment of torsion and rotating speed etc..
During unmanned plane power system operational, dynamical system can produce the mechanics parameters such as a series of pulling force, vibration and electric current,
The circuit parameters such as voltage, power, the design of experiment porch is exactly to obtain these data exactly.It is larger to avoid producing
Error, when obtaining experimental data, especially mechanics parameter, operating mode on experiment porch proposed by the present invention must with it is described nobody
The actual condition of motor-driven Force system is as similar as possible, to reduce unnecessary interference, so as to get data it is true and reliable.Therefore, this
The single-blade motor power experimental provision that invention proposes has been gone out following technical measures：
1. reasonably arrangement:Ensure reliability of structure in experimentation, accurately transmit power and torque；Make
Force system is high as far as possible to be put, and reduces the influence that ground faces helicoidal oar air-flow；Whole experiment porch and sensor will be with electricity
Arbor keeps coaxial；Reduce interference of the experimental platform equipment to helicoidal oar operating mode.
2. tension and torque compound sensor is placed in below motor cabinet, helicoidal oar produce pulling force and moment of torsion by motor and
Motor cabinet is transferred to tension and torque compound sensor, and tension and torque compound sensor measures pulling force with torque value directly in display
Upper display, moment of torsion, the data of pulling force of helicoidal oar can be thus measured in real time.
3. speed probe is placed on motor cabinet, rotating shaft certain distance is offset from, speed probe corresponds to spiral spiral shell
The opening position patch magnetic sheet of oar is revolved, when magnetic sheet rotates with helicoidal oar, sensor obtains helicoidal oar by magnetic field induction
Rotary speed data.
4. vibrating sensor is placed on support bar, vibration is produced during power system operational, sensor is with system vibration
Induction vibration, measure vibration data.
5. circuit test.When battery supply is powered, two-phase dc source is turned by electricity and is changed to three-phase alternating current, Ran Houzai
Powered to motor, the positive and negative measurement head of power instrument is connected on power output end, when motor works, it becomes possible to measure electricity in real time
Power, electric current and the voltage of source output.
Compared with prior art, the present invention achieves following effect：1. measuring accuracy is high.Tension and torque compound sensor
Coaxial with motor is arranged up and down, without the loss of transmission mechanism, reduces moment of torsion transmission error；Experimental provision propeller simultaneously
Central lower, also avoid disturbing propeller flow field；Above measure can smaller experimental provision in itself to motor work influence, have
Effect improves measuring accuracy.2. test function is more.Experimental provision has non-interfering multiple sensors to include the compound biography of tension and torque
Sensor, speed probe, vibrating sensor, can measure multigroup dynamic date under an electric machine operation state include rotating speed,
Moment of torsion, pulling force, vibration data, these data are tested indispensable to motor matching.3. modularized design.The machine of test device
Frame connection is fastenedly connected by screw thread or bolt, and it is very rapid convenient to change accessory according to different demands.4. corrective action
It is more.The present apparatus provides a variety of corrective actions for experiment, and minimum level reduces alignment error：The adjustment bolt adjustment of three, chassis is respective
Height carrys out orthotic chassis level；Electronic tension meter produces the drawing that upward pulling force corrects tension and torque compound sensor to motor shaft
Power；Electronic tension meter is connected with torque correction flange groove coiling, applies moment of torsion to tension and torque compound sensor, and correction pulling force is turned round
The moment of torsion of square compound sensor.
Measure in above series of design so that the experimental provision test as far as possible easily in the case of, meet each
Alignment error and test error in test request in the case of kind, effectively reduction test process etc., from motor-propeller
The angle matched somebody with somebody optimizes to dynamical system, and such optimization can greatly promote the performance of unmanned plane, there is very big show
Sincere justice.
Brief description of the drawings
Fig. 1 is the general structure schematic diagram of the present invention；
Fig. 2 is the decomposition scheme of installation of the present invention；
Fig. 3 is the sensor installation seat schematic diagram of support platform, wherein：3a is front view, and 3b is left view, and 3c is 3a
Sectional view；
Fig. 4 is the structural representation of motor cabinet；
Fig. 5 is the scheme of installation of motor cabinet；
Fig. 6 is the schematic diagram of tension-torsion tension and torque compound sensor, wherein, 6a is front view, and 6b is 6a left view, 6c
It is 6a top view, 6d is the graphics of tension-torsion tension and torque compound sensor.
In figure：
1. propeller；2. motor；3. tension and torque compound sensor；4. sensor holder；5. vibrating sensor；6. base；
7. support bar；8. speed probe；9. motor cabinet；10. adjustment bolt；11. motor cabinet inner ring mounting hole；12. motor cabinet outer ring
Mounting hole；13. the overhanging mounting hole of motor cabinet；14. flange groove；15. steel wire.
Embodiment
The present embodiment is a kind of single screw motor power experimental provision, including base 6, support bar 7, sensor holder 4, is drawn
Power moment of torsion compound sensor 3, vibrating sensor 5, speed probe 8 and motor cabinet 9.Wherein, the tension and torque composite sensing
The lower flange of device 3 is bolted on the upper surface center of sensor holder 4；Sensor holder 4 is fixed on the upper of the support bar 7
End, the lower end of support bar 7 is by being threadably mounted in the screwed hole of centre of the base 6.The fixing end of motor cabinet 9 is arranged on institute
State the upper surface of tension and torque compound sensor upper flange；The speed probe 8 is threadedly secured to the motor cabinet cantilever
The lower surface at end.Tested motor 2 is located at the upper surface of the tension and torque compound sensor upper flange, and is fixed on described
The upper surface of motor cabinet 9.Tested propeller 1 is arranged on the output shaft of the tested motor 2.
The vibrating sensor 5 uses magnetic-type vibrating sensor, positioned at the middle part of the support bar 7, is attracted to this
On the external peripheral surface of support bar 7.
Three adjustment bolts 10 are evenly equipped with the disc surfaces of the base 6, by the height for adjusting each adjustment bolt
Degree, to adjust the levelness of the base.
Described support bar 7 is the hollow tube of steel.The external peripheral surface at the support bar both ends is flank.
Described motor cabinet 9 is using thin plate made of aluminium alloy.One end of the motor cabinet is fixing end, and the fixing end is in
Cross；Motor installing hole 11 for installing motor 2 is evenly equipped with the criss-cross lath and for being answered with tension and torque
Close the installation screw of the upper flange connection of sensor 3.The other end of the motor cabinet has speed probe mounting hole 13；The rotating speed
The end of thread of sensor 6 is arranged in the speed probe mounting hole.
Described tension and torque compound sensor 3 uses the tension and torque composite sensing of the double flanges of golden promise 30Kg, 10Nm
Device, the sensor are the standard component of customization.The circumferential surface of the tension and torque compound sensor upper flange has the flange groove of annular
14, steel wire 15 is wound with groove, one end of the steel wire is fixed on sensor mounting hole, and the other end is connected with electronic tension meter.
The speed probe 8 uses clear section CT1002 using profit occasion RC41B Hall revolution speed transducers, vibrating sensor 5
The general accelerometer of charge type, is standard component.
What the present embodiment proposed carries out the specific of dynamic experiment using a kind of single screw motor power experimental provision
Process is：
Step 1, motor and propeller are installed.
Motor 2 and propeller 1 are connected by sub warhead propeller seat of the prior art.The sub warhead propeller seat
Mounting hole is enclosed on motor output shaft, and sub warhead propeller seat passes through helicoidal oar mounting hole, with supporting propeller seat spiral shell
Cap fastens propeller and motor, it is ensured that propeller is rotated with motor and will not fall off.The motor 2 is installed on motor cabinet 9, motor
Installation screw pass through inner ring mounting hole 11, coordinate with motor bottom installation screwed hole, fasten motor and motor cabinet.
Step 2, the correction of single screw motor power experimental provision.
The correction of the single screw motor power experimental provision include chassis level degree correction and tension and torque it is compound
The correction of sensor.
The correction of chassis level degree.Level meter is placed on chassis by adjustment chassis level when spending, by adjusting the bottom
The height of three adjustment bolts 10 on disk 6, to adjust the levelness of base；The positive negative error of base levelness is no more than
0.5°。
The correction of the tension and torque compound sensor includes pulling force correction and torque correction；
Pulling force corrects：
Apply power vertically upward to motor 2 by electronic tension meter, electronic tension meter show value is answered with tension and torque
Close the error amount ＜ 3% that sensor is shown.Detailed process is：
The gravity factor zero being subject to tension and torque compound sensor.Electronic tension meter is linked up with and sub warhead propeller seat
It is connected.Pulling force F vertically upward is applied to the sub warhead propeller seat by electronic tension meter.Pass through tension and torque composite sensing
Device obtains the test value F of the pulling force0.Calculate described to the pulling force F that sub warhead propeller seat applies and the compound biography of tension and torque
Sensor obtains the test value F of pulling force0Difference, i.e. F-F0If F-F0＜ 3%, difference then complete correction in allowed band；
If difference outside allowed band, check motor, experiment porch perpendicularity and reinstall experiment porch, re-calibrate drawing
Power, until F-F0Difference in the error range of permission.
Torque correction：
The fixing end of the steel wire 15 is wrapped on flange groove 14, the free end of steel wire and the hook of electronic tension meter connect
Connect.Pulling force F is applied to the flange of tension and torque compound sensor 3 by electronic tension meter*.Pulling force F*With flange groove circumference table
Distances of the point of contact A in face away from the center of tension and torque compound sensor 3 is the arm of force, the radius of the arm of force=flange groove groove bottom circumference
R.Pulling force F is shown by electronic tension meter*With arm of force R product, the application using the product as tension and torque compound sensor
Torque T.Obtain testing torque T by the tension and torque compound sensor0.Calculate the application torque T and test torque T0's
Difference, i.e. T-T0＜ 3%, if difference in allowed band, completes correction；If difference outside allowed band, is examined
Look into the skew of tension and torque compound sensor installation process and reinstall experiment porch, re-calibrate moment of torsion, until deviation exists
In the error range of permission.
Step 3, the connection of power instrument.
By the power instrument of circuit test by electron speed regulator respectively with the motor connection.Recorded by electron speed regulator
Electric current, voltage and power of the motor described in test under working speed.The power instrument of the circuit test is standard component.
Step 4, the test of single-blade motor power experimental provision.
Single-blade motor power experimental provision test be to propeller and motor at work caused pulling force, moment of torsion,
The display and collection of rotating speed and vibration data；Motor feed circuit parameter during motor work is recorded simultaneously.Detailed process is：
I with by motor driven propeller with<500r/min rotation speed operation.Check tension and torque compound sensor 3, turn
Fast sensor 8, vibrating sensor 5 are in steady-working state and display is normal.
II determines the rotating speed of propeller.Sensing magnetic sheet is pasted in the lower aerofoil of propeller blade wing tip, and makes the sensing magnetic
Piece is corresponding with the speed probe 8 being disposed below.When the motor is rotated with operating rate, passed by described rotating speed
Sensor records number of revolutions of the sensing magnetic sheet in a cycle, so as to obtain sensing the rotating speed of magnetic sheet；The sensing magnetic sheet turns
Speed is the rotating speed of propeller.The rotating speed of the propeller is the working speed Nr/min of motor.
The described cycle is 1min.
III adjusts motor speed according to the motor working speed Nr/min of determination.To the compound biography of tension and torque when motor works
Sensor 3 transmits pulling force and moment of torsion.
IV pulling force and moment of torsion received by the real-time display of tension and torque compound sensor 3, resulting pulling force and torsion
Square is motor and pulling force and moment of torsion of the propeller under working speed.
V measures caused vibration acceleration in motor work by vibrating sensor 5, and the real-time display vibration
The numerical value of acceleration, obtain motor and Results of Vibration of the propeller under working speed.
So far, motor and pulling force, moment of torsion, rotating speed and vibration-testing data of the propeller under working speed are obtained.
Claims (7)
1. a kind of single-blade motor power experimental provision, it is characterised in that multiple including base, support bar, sensor holder, tension and torque
Close sensor, vibrating sensor, speed probe and motor cabinet；Wherein, the lower flange of the tension and torque compound sensor is consolidated
It is scheduled on sensor holder upper surface center；Sensor holder is fixed on the upper end of the support bar, and the support bar lower end is arranged on described
In the screwed hole of centre of base；The fixing end of motor cabinet is arranged on the upper surface of the tension and torque compound sensor upper flange；
The speed probe is fixed on the lower surface of the motor cabinet cantilever end；The vibrating sensor is attracted in the middle part of the support bar
External peripheral surface on.
2. single-blade motor power experimental provision as claimed in claim 1, it is characterised in that the disc surfaces in the base
Three adjustment bolts are evenly equipped with, by adjusting the height of each adjustment bolt, to adjust the levelness of the base.
3. single-blade motor power experimental provision as claimed in claim 1, it is characterised in that one end of described motor cabinet is fixation
End, the fixing end is in cross；Be evenly equipped with the criss-cross lath motor installing hole for installing motor and for
The installation screw of the upper flange connection of tension and torque compound sensor；The other end of the motor cabinet has speed probe mounting hole.
4. single-blade motor power experimental provision as claimed in claim 1, it is characterised in that described tension and torque compound sensor
The circumferential surface of upper flange has the flange groove of annular, and steel wire is wound with groove, and one end of the steel wire is fixed on sensor installation
Hole, the other end are connected with electronic tension meter.
5. single-blade motor power experimental provision as claimed in claim 1, it is characterised in that the excircle at described support bar both ends
Surface is flank.
A kind of 6. method that dynamic experiment is carried out using single-blade motor power experimental provision described in claim 1, it is characterised in that
Detailed process is：
Step 1, motor and propeller are installed；
Motor and propeller are connected by sub warhead propeller seat；
Step 2, the correction of single screw motor power experimental provision；
The correction of the single screw motor power experimental provision includes correction and the tension and torque composite sensing of chassis level degree
The correction of device；
Step 3, the connection of power instrument；
By the power instrument of circuit test by electron speed regulator respectively with the motor connection；Recorded and tested by electron speed regulator
Described in electric current, voltage and power of the motor under working speed；
Step 4, the test of single-blade motor power experimental provision；
Single-blade motor power experimental provision test is to propeller and motor caused pulling force, moment of torsion, rotating speed at work
With the display and collection of vibration data；Motor feed circuit parameter during motor work is recorded simultaneously；Detailed process is：
I by motor driven propeller with<500r/min rotation speed operation；Check tension and torque compound sensor, revolution speed sensing
Device, vibrating sensor are in steady-working state and display is normal；
II determines the rotating speed of propeller；Propeller blade wing tip lower aerofoil paste sensing magnetic sheet, and make the sensing magnetic sheet with
The speed probe being disposed below is corresponding；When the motor is rotated with operating rate, pass through described speed probe
Number of revolutions of the sensing magnetic sheet in a cycle is recorded, so as to obtain sensing the rotating speed of magnetic sheet；The rotating speed of the sensing magnetic sheet is
For the rotating speed of propeller；The rotating speed of the propeller is the working speed Nr/min of motor；
III adjusts motor speed according to the motor working speed Nr/min of determination；To tension and torque compound sensor when motor works
Transmit pulling force and moment of torsion；
IV pulling force and moment of torsion received by tension and torque compound sensor real-time display, resulting pulling force are with moment of torsion
Motor and pulling force and moment of torsion of the propeller under working speed；
V measures caused vibration acceleration in motor work by vibrating sensor, and the real-time display vibration acceleration
Numerical value, obtain motor and Results of Vibration of the propeller under working speed；
So far, motor and pulling force, moment of torsion, rotating speed and vibration-testing data of the propeller under working speed are obtained.
7. the method that single-blade motor power experimental provision as claimed in claim 6 carries out dynamic experiment, the tension and torque are compound
The correction of sensor includes pulling force correction and torque correction, wherein：
Pulling force corrects：
Apply power vertically upward to motor by electronic tension meter, make electronic tension meter show value and tension and torque composite sensing
The error amount ＜ 3% that device is shown；Detailed process is：
The gravity factor zero being subject to tension and torque compound sensor；Electronic tension meter hook is connected with sub warhead propeller seat
Connect；Pulling force F vertically upward is applied to the sub warhead propeller seat by electronic tension meter；Obtained by tension and torque compound sensor
To the test value F of the pulling force0；Calculate described to the pulling force F that sub warhead propeller seat applies and tension and torque compound sensor
Obtain the test value F of pulling force0Difference, i.e. F-F0If F-F0＜ 3%, difference then complete correction in allowed band；If
Difference outside allowed band, check motor, experiment porch perpendicularity and reinstall experiment porch, re-calibrate pulling force,
Until F-F0Difference in the error range of permission；
Torque correction：
The fixing end of the steel wire is wrapped on flange groove, the free end of steel wire and the hook of electronic tension meter connect；Pass through
Electronic tension meter applies pulling force F to the flange of tension and torque compound sensor*；Pulling force F*With the point of contact A of flange groove circumferential surface
Distance away from tension and torque compound sensor center is the arm of force, the radius R of the arm of force=flange groove groove bottom circumference；Pass through electronics
Tensiometer shows pulling force F*With arm of force R product, the application torque T of tension and torque compound sensor is used as using the product；Pass through
The tension and torque compound sensor obtains testing torque T0；Calculate the application torque T and test torque T0Difference, i.e. T-
T0＜ 3%, if difference in allowed band, completes correction；If difference outside allowed band, checks tension and torque
The skew of compound sensor installation process simultaneously reinstalls experiment porch, re-calibrates moment of torsion, until deviation is in the error of permission
In the range of.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108681251A (en) * | 2018-05-15 | 2018-10-19 | 上海扩博智能技术有限公司 | The determination method at six rotor wing unmanned aerial vehicle motor inclination angles |
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| CN109060223A (en) * | 2018-09-11 | 2018-12-21 | 江苏兰菱机电科技有限公司 | Band paddle unmanned plane liter helps real-time testing system |
| CN110127084A (en) * | 2019-06-22 | 2019-08-16 | 广西翼界科技有限公司 | A kind of unmanned plane power performance detector and test method |
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