CN106813832A - A kind of unmanned plane propeller balance device for quick testing and method - Google Patents
A kind of unmanned plane propeller balance device for quick testing and method Download PDFInfo
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- CN106813832A CN106813832A CN201710128969.0A CN201710128969A CN106813832A CN 106813832 A CN106813832 A CN 106813832A CN 201710128969 A CN201710128969 A CN 201710128969A CN 106813832 A CN106813832 A CN 106813832A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M1/00—Testing static or dynamic balance of machines or structures
- G01M1/12—Static balancing; Determining position of centre of gravity
- G01M1/122—Determining position of centre of gravity
- G01M1/125—Determining position of centre of gravity of aircraft
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Abstract
The invention discloses a kind of unmanned plane propeller balance device for quick testing and method, its device includes base plate, the magnetic suspension support and propeller balance controller being placed on base plate, and test suite；It is to be detachably connected between magnetic suspension support and test suite；Test suite is used to carry unmanned plane propeller to be tested, and magnetic suspension support is used for bearing test component, and propeller balance controller is used to obtain the direction of rotation of unmanned plane propeller to be tested and speed and determines therefrom that its centre-of gravity shift direction；Its test suite includes magnetic suspension shaft, propeller fixed knob, grating disc and grating sensor；Unmanned plane propeller balance method for rapidly testing based on the device, based on grating sensing technique, the direction of rotation and acceleration direction of propeller to be measured are captured by grating disc, and then pulse signal is converted to by grating sensor, obtain the centre-of gravity shift direction of propeller fast and automatically, exactly with pulsewidth by the phase difference of pulse signal.
Description
Technical field
The invention belongs to multi-rotor unmanned aerial vehicle technical field of measurement and test, more particularly, to a kind of unmanned plane propeller balance
Device for quick testing and method.
Background technology
The method of adjustment multi-rotor unmanned aerial vehicle propeller gravity balance is generally using manual by magnetic levitation balanced axle at present
, be fixed on propeller to be adjusted on magnetic levitation balanced axle first by the mode of regulation, is then placed into magnetic levitation balanced axle special
On support, if the axle center of the center of gravity of propeller to be adjusted and magnetic levitation balanced axle is not on the same line, propeller to be adjusted can be
Slowly deflected under Action of Gravity Field, operator judges centre-of gravity shift direction by observing yawing moment and speed, and accordingly
Propeller material to center of gravity offset direction is polished, and the center of gravity of propeller is adjusted with this；Again with same side after polishing
Method measurement centre-of gravity shift direction, is gradually modified, until the axle center of the center of gravity of propeller to be adjusted and magnetic levitation balanced axle is almost
It is completely superposed, no matter now what angle propeller stops at, is deflected all without because of deviation of gravity center.
The defect of this manual regulative mode is essentially consisted in：1st, the weight of propeller is judged according to deflection characteristic by operator
Heart offset direction, the degree of accuracy of judgement depends on the experience of operator, it is possible to because the error in judgement of operator, causes again
Polishing tailheaviness deviates more serious, it is necessary to trial and error can be only achieved approximate equilibrium repeatedly；2nd, after fixing propeller to be adjusted every time,
Judge whether propeller reaches poised state by operator's eye-observation, when observation process generally requires one minute to three minutes
Between, add polishing adjustment, time for gradually correcting, one propeller of debugging it is time-consuming often beyond half an hour；Therefore it is this
The mode for adjusting manually, accuracy is relatively low, less efficient, it is impossible to meet volume production demand.
The content of the invention
It is quick the invention provides a kind of unmanned plane propeller balance for the disadvantages described above or Improvement requirement of prior art
Test device and method；Its object is to be based on automatic test of the grating sensing technique realization to unmanned plane propeller balance, solution
The certainly existing problem that manual mode accuracy is low, efficiency is low.
To achieve the above object, according to one aspect of the present invention, there is provided a kind of unmanned plane propeller balance is quickly surveyed
Trial assembly is put, including base plate, the magnetic suspension support and propeller balance controller that are placed on base plate, and test suite；
Wherein, magnetic suspension support is fluted body structure, and the inner side of its two sides wall is embedded with magnet respectively, and magnetic suspension support leads to
Cross between magnet and test suite and realize being detachably connected；
Wherein, test suite is used to carry unmanned plane propeller to be tested, and magnetic suspension support is used for bearing test component,
Propeller balance controller is used to obtain the direction of rotation and acceleration direction of unmanned plane propeller to be tested and determine therefrom that
Its centre-of gravity shift direction.
Preferably, above-mentioned unmanned plane propeller balance device for quick testing, also including center of gravity condition indicator board, center of gravity condition
Have between indicator board and propeller balance controller and electrically connect, for the signal designation exported according to propeller balance controller
The centre-of gravity shift direction of unmanned plane propeller to be tested.
Preferably, above-mentioned unmanned plane propeller balance device for quick testing, its test suite includes magnetic suspension shaft, propeller
Fixed knob, grating disc and grating sensor；
Wherein, grating sensor is fluted body structure, and located at the bottom of magnetic suspension support, the centre bore of grating disc passes through magnetic
Levitation axis so that grating disc can be rotated with magnetic suspension shaft, the card part of grating disc is located in the groove of grating sensor；
The effect realization of the magnet that test suite passes through its magnetic suspension shaft and magnetic suspension support two ends and magnetic suspension support it
Between be detachably connected；
Wherein, magnetic suspension shaft is used to carry unmanned plane propeller to be tested, and propeller fixed knob is used for will be to be tested
Unmanned plane propeller be fixed on magnetic suspension shaft, grating disc and grating sensor coordinate for gathering unmanned plane spiral shell to be tested
Revolve the direction of rotation of oar and speed data and accordingly generate pulse signal；Rising of the propeller balance controller according to pulse signal
The centre-of gravity shift direction of unmanned plane propeller to be tested is determined along, trailing edge and pulse width；
Before test, magnetic suspension shaft is passed through the centre bore of unmanned plane propeller to be tested, by propeller fixed knob
Unmanned plane propeller to be tested is fixed, grating disc is then fixed on magnetic suspension shaft and unmanned plane propeller to be tested
Parallel position, the magnetic suspension shaft that will install unmanned plane propeller to be tested and grating disc is placed on magnetic suspension support and is surveyed
Examination；
During test, the test suite that will be provided with unmanned plane propeller to be tested is placed on magnetic suspension support, magnetcisuspension
Floating axle is in free rotary state, and magnetic suspension shaft is under the influence of centre-of gravity shift to certain direction free deflection, propeller balance
Controller is by gathering the pulse signal that grating sensor is exported, you can detect and analyze direction and the speed of propeller rotational,
Determine therefrom that the direction of centre-of gravity shift.
Preferably, above-mentioned unmanned plane propeller balance device for quick testing, its magnetic suspension shaft two ends are taper, magnetic suspension shaft
The magnet of one end and magnetic suspension support one end contact for point, the other end of magnetic suspension shaft and the magnet of the magnetic suspension support other end
Between leave spacing so that only one of which point is contacted between magnetic suspension shaft and magnetic suspension support, in reaching propeller rotary course
Frictional resistance suffered by magnetic suspension shaft is minimum purpose；If magnetic suspension shaft two ends contact with magnetic suspension support, can be because
For two ends cause the frictional resistance between magnetic suspension shaft and magnetic suspension support to increase to middle chucking power, surveyed under this resistance
The small centre-of gravity shift of amount propeller can greatly reduce measurement sensitivity.
To achieve the above object, according to another aspect of the present invention, quickly surveyed based on above-mentioned unmanned plane propeller balance
Trial assembly is put there is provided a kind of man-machine propeller balance method for rapidly testing, and the angular speed rotated according to grating disc generates two-way pulse
Signal, according to the phase difference of the two pulse signals, and wherein the pulse width of pulse signal determines spiral to be measured all the way
The direction of rotation and acceleration direction of oar；Unmanned plane propeller to be measured is determined according to above-mentioned direction of rotation and acceleration direction
Centre-of gravity shift direction.
Preferably, above-mentioned man-machine propeller balance method for rapidly testing, specifically includes following steps：
(1) test suite that will carry unmanned plane propeller to be measured is placed on magnetic suspension support；Propeller to be measured
Rotated clockwise or counterclockwise under the influence of itself centre-of gravity shift, the synchronous grating disc driven on magnetic suspension shaft turns
It is dynamic；
(2) direction for being rotated according to grating disc by grating sensor and speed output two-way square-wave signal U1, U2；
(3) propeller balance controller obtains square-wave signal by catching the rising edge and trailing edge of square-wave signal U1, U2
The phase difference of U1, U2, and then propeller direction of rotation is determined according to phase difference；And according to the pulse width of square-wave signal U1, U2
Come the acceleration direction of recognition helix oar rotation；
(4) result obtained according to step (3) determines the centre-of gravity shift direction of propeller to be measured.
Preferably, above-mentioned man-machine propeller balance method for rapidly testing, in its step (3)：
If the phase difference of a, square-wave signal U1 and square-wave signal U2 is for just, judgement propeller revolves clockwise
Turn；If the phase difference of square-wave signal U1 and square-wave signal U2 is negative, judge propeller along counterclockwise rotates；
N adjacent waveform pulsewidth t of b, acquisition1、t2、…、tn；N is the positive integer not less than 3；
When meeting t1>t2…>tn, judge that propeller to be measured just accelerates to rotate；
When meeting t1<t2…<tn, judge the positive underdrive of propeller to be measured；
When meeting t1=t2...=tn, judge propeller uniform motion or static to be measured.
Preferably, above-mentioned man-machine propeller balance method for rapidly testing, its step (4) determines that the center of gravity of propeller to be measured is inclined
The method for moving direction, it is specific as follows：
When propeller underdrive clockwise, judge that the center of gravity of propeller to be measured is to the left in the horizontal direction；
When propeller accelerates to rotate clockwise, judge that the center of gravity of propeller to be measured is to the right in the horizontal direction；
When propeller is along counter clockwise direction underdrive, judge that the center of gravity of propeller to be measured is to the right in the horizontal direction
When propeller accelerates to rotate along counter clockwise direction, judge that the center of gravity of propeller to be measured is to the left in the horizontal direction；
When survey propeller uniform motion or it is static when, judge that the center of gravity of propeller to be measured is placed in the middle.
Preferably, above-mentioned man-machine propeller balance method for rapidly testing, also comprises the following steps：When the weight of propeller to be measured
The heart is to the left in the horizontal direction, then light the first indicator lamp on center of gravity condition indicator board；When the center of gravity of propeller to be measured is in level
Direction is to the right, lights the second indicator lamp on center of gravity condition indicator board；When the center of gravity of propeller to be measured is placed in the middle, center of gravity condition is lighted
The 3rd indicator lamp on indicator board.
In general, by the contemplated above technical scheme of the present invention compared with prior art, can obtain down and show
Beneficial effect：
The unmanned plane propeller balance device for quick testing that the present invention is provided, based on grating sensing technique, by grating disc
The direction of rotation and acceleration direction of propeller to be measured are captured, and then pulse signal is converted to by grating sensor, by arteries and veins
The phase difference and pulsewidth for rushing signal judged, can fast and automatically, exactly obtain center of gravity of the propeller on magnetic suspension shaft inclined
Direction is moved, for the polishing debugging of next step provides foundation；With existing manual observation, the mode of control is comparatively, logical manually
The difference of the pulse temporal width Microsecond grade that grating disc and grating sensor capture propeller rotational process are produced is crossed, is greatly carried
Accuracy high, will not cause the judgement of mistake because of human factor, greatly shorten the time of propeller balance test, and then
Drastically increase the efficiency of paddle balance debugging.
Brief description of the drawings
Fig. 1 is the structural representation of the unmanned plane propeller balance device for quick testing that embodiment is provided；
Fig. 2 is the plan view of the unmanned plane propeller balance device for quick testing that embodiment is provided；
Fig. 3 is the unmanned plane propeller balance device for quick testing partial circuit connection diagram that embodiment is provided；
Fig. 4 is the center of gravity condition indicator board schematic diagram of the unmanned plane propeller balance device for quick testing that embodiment is provided；
Fig. 5 is the schematic diagram that embodiment is balanced test to unmanned plane propeller；
Fig. 6 is waveform when unmanned plane propeller is rotated in a clockwise direction in embodiment；
Fig. 7 is waveform when unmanned plane propeller rotates in the counterclockwise direction in embodiment.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as additionally, technical characteristic involved in invention described below each implementation method
Not constituting conflict each other can just be mutually combined.
The unmanned plane propeller balance device for quick testing that embodiment is provided, its structure is as shown in Figure 1；Including base plate, with
And magnetic suspension support, center of gravity condition indicator board, the propeller balance controller being placed on base plate, and test suite；
In the present embodiment, magnetic suspension support is fluted body structure, and the inner side of its two sides wall is embedded with magnet respectively；Test group
Part includes magnetic suspension shaft, propeller fixed knob, grating disc and grating sensor；Plan view shown in Fig. 2 can be seen that this
Grating sensor is fluted body structure in embodiment, and located at the bottom of magnetic suspension support, the centre bore of grating disc passes through magnetic suspension
Axle so that grating disc can be rotated with magnetic suspension shaft, the card part of grating disc is located in the groove of grating sensor, positioned at grating
There is the light tank that two circles mutually stagger in grating disc card in sensor recess；Center of gravity condition indicator board and propeller balance
There is electrical connection between controller, have between grating sensor and propeller balance controller and electrically connect.
As shown in figure 3, be the present embodiment unmanned plane propeller balance device for quick testing in center of gravity condition indicator board, spiral shell
Partial circuit connection diagram between rotation paddle balance controller and grating sensor；Two signal ends of grating sensor
U1, u2 are connected with two signal input parts u1-in, u2-in of propeller balance controller respectively, the power end of grating sensor
VCC is connected with the power end VCC of propeller balance controller, earth terminal GND and the propeller balance controller of grating sensor
Earth terminal GND be connected；Lighting control signal end LED-A, LED-B of propeller balance controller, LED-C, LED-D, LED-E
Respectively with LED signal input LED-A-in, LED-B-in, LED-C-in, LED-D-in, LED-E- of center of gravity condition indicator board
In is connected, and the earth terminal GND of propeller balance controller is connected with the earth terminal GND of center of gravity condition indicator board.
In the present embodiment, center of gravity condition indicator board as schematically shown in Figure 4, there is A, B, C, D, E totally 5 indicator lamps on panel；
When center of gravity is on the upper side in vertical direction, propeller balance controller control indicator lamp A is lighted；When center of gravity is to the right in the horizontal direction
When, propeller balance controller control indicator lamp B is lighted；When center of gravity is on the lower side in vertical direction, propeller balance controller control
Indicator lamp C processed is lighted；When center of gravity is to the left in the horizontal direction, propeller balance controller control indicator lamp D is lighted；When center of gravity exists
Magnetic suspension shaft in the heart when, propeller balance controller control indicator lamp E light.
Test suite is by between the effect realization of its magnetic suspension shaft and magnetic suspension support two ends magnet and magnetic suspension support
Be detachably connected；In the present embodiment, magnetic suspension shaft two ends are taper, and wherein one end is that point is contacted with a magnet, the other end
It is designed as having small spacing between corresponding magnet, it is ensured that the two ends of magnetic suspension shaft contact when different with magnetic suspension support；
When magnetic suspension shaft is placed on magnetic suspension support, magnetic suspension shaft is suspended on magnetic by the magnetic attraction produced by the magnet at two ends
On suspension, whole component is on magnetic suspension support only by the conial vertex and magnetic suspension branch bridge joint of magnetic suspension shaft one end
Touch, therefore the drag minimization between the magnet at magnetic suspension shaft and magnetic suspension support two ends.
When the device is tested for propeller balance, by propeller center hole to be tested through on magnetic suspension shaft, pass through
Propeller fixed knob is fixed to propeller to be tested, magnetic suspension shaft is placed on magnetic suspension support and is tested；When
When the center of gravity of propeller to be tested is not on the axial line of magnetic suspension shaft, propeller is under self gravitation effect, along counterclockwise
Direction or rotationally clockwise, the synchronous grating disc driven on magnetic suspension shaft is rotated, and grating sensor is according to detecting grating
Direction and speed output pulse signal that disk is rotated；Propeller balance controller according to the pulse signal that grating sensor is exported come
Analyze direction and the velocity variations of propeller rotational, and the direction of quick obtaining propeller centre-of gravity shift and size accordingly, and point
The indicator lamp of correspondence direction on bright center of gravity condition indicator board.
The unmanned plane propeller balance device for quick testing provided below in conjunction with the present embodiment carrys out illustrated embodiments offer
Unmanned plane propeller balance method for rapidly testing；The unmanned plane propeller balance method for rapidly testing that embodiment is provided, is basis
The phase of the square-wave signal that the square-wave signal of the output port U1 outputs of grating sensor is exported with grating sensor output port U2
Potential difference, and the pulse width of the square-wave signal of output port U1 outputs determines the direction of rotation and acceleration side of propeller to be measured
To；The centre-of gravity shift direction of unmanned plane propeller to be measured is determined according to direction of rotation and acceleration direction.
Grating sensor according to grating disc rotation output two-way square-wave signal principle be：There are two circles to arrange on grating disc
Neatly, the light tank for mutually staggering；There are two pairs of infrared transmitting tubes and infrared photoelectric sensor, two-way in the groove of grating sensor
The infrared light path of infrared photoelectric sensor correspond to two circle light tanks on grating disc respectively, when grating disc is rotated, can the cycle
Property the light path intercepted in grating sensor between two groups of infrared transmitting tubes；When the light path between infrared transmitting tube is not intercepted
When, corresponding signal output is high level, and when the light path between infrared transmitting tube is blocked, corresponding signal output is
Low level；When optical path signal is periodically blocked by the light tank on grating disc, corresponding signal output exports square-wave signal.
This unmanned plane propeller balance method for rapidly testing that embodiment is provided, it is specific as follows：
(1) test suite that will carry unmanned plane propeller to be measured is placed on magnetic suspension support so that it is to be measured nobody
The axis of machine propeller is parallel in the horizontal direction with magnetic suspension shaft, as shown in Figure 5；Propeller to be measured is in itself centre-of gravity shift
Under the influence of rotate clockwise or counterclockwise, the synchronous grating disc driven on magnetic suspension shaft is rotated；
(2) direction for being rotated according to grating disc by grating sensor and speed output two-way square-wave signal U1, U2；
(3) propeller balance controller is by catching the rising edge and trailing edge and square-wave signal of square-wave signal U1, U2
The pulse width of U1, U2 comes recognition helix oar direction of rotation and acceleration direction；Specially：
If a, the rising edge of square-wave signal U1 are ahead of square-wave signal U2, judge that propeller revolves clockwise
Turn；If the rising edge of square-wave signal U2 is ahead of square-wave signal U1, judge propeller along counterclockwise rotates；
In embodiment, the waveform that is gathered when unmanned plane propeller to be measured is rotated in a clockwise direction as shown in fig. 6,
The waveform that unmanned plane propeller to be measured is gathered when rotating in the counterclockwise direction is as shown in Figure 7；
B, the n adjacent waveform pulsewidth t for obtaining square-wave signal U11、t2、…、tn；In the present embodiment, n takes 5；
When meeting t1>t2…>tn, judge that propeller just accelerates to rotate；
When meeting t1<t2…<tn, judge the positive underdrive of propeller；
When meeting t1=t2...=tn, judge that propeller propeller is static or uniform motion, further judge that its center of gravity exists
Its vertical axes is in the heart；
(4) result obtained according to step (3) determines the centre-of gravity shift direction of propeller to be measured；It is resulting in the present embodiment
Result it is as shown in table 1 below；
The centre-of gravity shift direction list of the propeller to be measured of table 1
| The advanced U2 of U1 rising edges | The advanced U1 of U2 rising edges | Acceleration direction | |
| Center of gravity is to the left in the horizontal direction | Center of gravity is to the right in the horizontal direction | Underdrive | |
| Center of gravity is to the right in the horizontal direction | Center of gravity is to the left in the horizontal direction | Accelerate to rotate | |
| Center of gravity is placed in the middle | Center of gravity is placed in the middle | ||
| Direction of rotation | Turn clockwise | Rotate counterclockwise |
(5) when the center of gravity of propeller to be measured is to the left in the horizontal direction, then the indicator lamp D on center of gravity condition indicator board is lighted；
When the center of gravity of propeller to be measured is to the right in the horizontal direction, the indicator lamp B on center of gravity condition indicator board is lighted；When propeller to be measured
Center of gravity is placed in the middle, lights the indicator lamp E on center of gravity condition indicator board；Operator can be according to indicated by indicator lamp centre-of gravity shift direction
To determine that next step needs the position of polishing.
This unmanned plane propeller balance device for quick testing and method that embodiment is provided, capture to be measured by grating disc
The direction of rotation and acceleration direction of propeller, and then pulse signal is converted to by grating sensor, by pulse signal
Phase difference is judged with pulsewidth
Follow-up polishing operation provides foundation so as to can greatly improve the operating efficiency of propeller balance polishing work.
As it will be easily appreciated by one skilled in the art that the foregoing is only presently preferred embodiments of the present invention, it is not used to
The limitation present invention, all any modification, equivalent and improvement made within the spirit and principles in the present invention etc., all should include
Within protection scope of the present invention.
Claims (10)
1. a kind of unmanned plane propeller balance device for quick testing, it is characterised in that including base plate, the magnetic suspension being placed on base plate
Support and propeller balance controller, and test suite；
The magnetic suspension support is fluted body structure, and the inner side of its two sides wall is embedded with magnet respectively, and magnetic suspension support passes through magnetic
Realize being detachably connected between iron and test suite；
The test suite is used to carry unmanned plane propeller to be tested, and the magnetic suspension support is used for bearing test component,
The propeller balance controller is used to obtain the direction of rotation and acceleration direction and accordingly of unmanned plane propeller to be tested
Determine its centre-of gravity shift direction.
2. unmanned plane propeller balance device for quick testing as claimed in claim 1, it is characterised in that also including center of gravity condition
Indicator board, has between the center of gravity condition indicator board and propeller balance controller and electrically connects, for according to propeller balance
The centre-of gravity shift direction of the signal designation unmanned plane propeller to be tested of controller output.
3. unmanned plane propeller balance device for quick testing as claimed in claim 1 or 2, it is characterised in that the test group
Part includes magnetic suspension shaft, propeller fixed knob, grating disc and grating sensor；
The grating sensor is fluted body structure, located at the bottom of magnetic suspension support；The centre bore of the grating disc passes through magnetic
Levitation axis so that grating disc can be rotated with magnetic suspension shaft, the card part of grating disc is located in the groove of grating sensor；
The test suite passes through the effect realization and magnetcisuspension over draft of its magnetic suspension shaft and the magnet at the magnetic suspension support two ends
Being detachably connected between frame；
The magnetic suspension shaft is used to carry unmanned plane propeller to be tested；The propeller fixed knob is used for will be to be tested
Unmanned plane propeller is fixed on magnetic suspension shaft；The grating disc coordinates the angle for obtaining grating disc rotation with grating sensor
Speed simultaneously accordingly generates two pulse signals；The propeller balance controller according to the phase difference of the two pulse signals with
And wherein the pulse width of pulse signal determines the centre-of gravity shift direction of unmanned plane propeller to be tested all the way.
4. unmanned plane propeller balance device for quick testing as claimed in claim 3, it is characterised in that the magnetic suspension shaft two
It is taper to hold, and one end of magnetic suspension shaft is that point is contacted with the magnet of magnetic suspension support one end, the other end and magnetcisuspension of magnetic suspension shaft
There is spacing between the magnet of the over draft frame other end so that only one of which point is contacted between magnetic suspension shaft and magnetic suspension support, is reached
Frictional resistance in propeller rotary course suffered by magnetic suspension shaft is minimum purpose.
5. a kind of unmanned plane propeller of the unmanned plane propeller balance device for quick testing based on described in Claims 1 to 4 is put down
Weighing apparatus method for rapidly testing, it is characterised in that the angular speed rotated according to the grating disc generates two pulse signals, according to described
The phase difference of two pulse signals and wherein all the way the pulse width of pulse signal determine propeller to be measured direction of rotation and
Acceleration direction；And the centre-of gravity shift direction of propeller to be measured is determined according to the direction of rotation and acceleration direction.
6. unmanned plane propeller balance method for rapidly testing as claimed in claim 5, it is characterised in that specifically include following step
Suddenly：
(1) test suite that will carry propeller to be measured is placed on magnetic suspension support；Propeller to be measured is inclined in itself center of gravity
Rotated clockwise or counterclockwise under the influence of shifting, the synchronous grating disc driven on magnetic suspension shaft is rotated；
(2) direction for being rotated according to grating disc and speed generation two-way square-wave signal U1, U2；
(3) phase difference of two-way square-wave signal U1, U2 is obtained；And propeller direction of rotation to be measured is determined according to the phase difference,
And according to wherein the pulse width of square-wave signal U1 determines the acceleration direction that propeller to be measured rotates all the way；
(4) the acceleration direction according to propeller direction of rotation to be measured and rotation determines the centre-of gravity shift direction of propeller to be measured.
7. unmanned plane propeller balance method for rapidly testing as claimed in claim 6, it is characterised in that determined according to phase difference
The method of propeller direction of rotation to be measured is：If the phase difference of square-wave signal U1 and square-wave signal U2 is just, propeller is judged
Rotate clockwise；If the phase difference of square-wave signal U1 and square-wave signal U2 is negative, judge propeller along the inverse time
Pin direction rotates.
8. unmanned plane propeller balance method for rapidly testing as claimed in claims 6 or 7, it is characterised in that believed according to square wave
Number pulse width be determining the method in acceleration direction of propeller to be measured rotation：
Obtain the pulsewidth t of n adjacent impulse waveform of the square-wave signal1、t2、…、tn；N is the positive integer not less than 3；
Work as t1>t2…>tn, judge that propeller just accelerates to rotate；
Work as t1<t2…<tn, judge the positive underdrive of propeller；
Work as t1=t2...=tn, judge propeller uniform motion or static.
9. unmanned plane propeller balance method for rapidly testing as claimed in claim 8, it is characterised in that according to propeller to be measured
The acceleration direction of direction of rotation and rotation determines that the method in the centre-of gravity shift direction of propeller to be measured is：
When propeller underdrive clockwise to be measured, judge that the center of gravity of propeller to be measured is to the left in the horizontal direction；
When propeller to be measured accelerates to rotate clockwise, judge that the center of gravity of propeller to be measured is to the right in the horizontal direction；
When propeller to be measured is along counter clockwise direction underdrive, judge that the center of gravity of propeller to be measured is to the right in the horizontal direction
When propeller to be measured accelerates to rotate along counter clockwise direction, judge that the center of gravity of propeller to be measured is to the left in the horizontal direction；
When propeller uniform motion or static to be measured, judge that the center of gravity of propeller to be measured is placed in the middle.
10. unmanned plane propeller balance method for rapidly testing as claimed in claims 6 or 7, it is characterised in that also including as follows
Step：When the center of gravity of propeller to be measured is to the left in the horizontal direction, then the first indicator lamp on center of gravity condition indicator board is lighted；When treating
The center of gravity for surveying propeller is to the right in the horizontal direction, lights the second indicator lamp on center of gravity condition indicator board；When propeller to be measured
Center of gravity is placed in the middle, lights the 3rd indicator lamp on center of gravity condition indicator board.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107817071A (en) * | 2017-11-28 | 2018-03-20 | 汪哲宇 | Propeller planometer |
| CN111982403A (en) * | 2020-06-29 | 2020-11-24 | 安正华 | High-precision hydraulic static balancing instrument for ship propeller |
| CN114046935A (en) * | 2022-01-10 | 2022-02-15 | 天峋（常州）智能科技有限公司 | Unmanned aerial vehicle screw dynamic balance testing arrangement |
| CN114797042A (en) * | 2022-05-27 | 2022-07-29 | 哈尔滨金融学院 | Badminton collection device for badminton training field |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107817071A (en) * | 2017-11-28 | 2018-03-20 | 汪哲宇 | Propeller planometer |
| CN111982403A (en) * | 2020-06-29 | 2020-11-24 | 安正华 | High-precision hydraulic static balancing instrument for ship propeller |
| CN111982403B (en) * | 2020-06-29 | 2022-11-04 | 合肥倍豪海洋装备技术有限公司 | High-precision hydraulic static balancing instrument for ship propeller |
| CN114046935A (en) * | 2022-01-10 | 2022-02-15 | 天峋（常州）智能科技有限公司 | Unmanned aerial vehicle screw dynamic balance testing arrangement |
| CN114797042A (en) * | 2022-05-27 | 2022-07-29 | 哈尔滨金融学院 | Badminton collection device for badminton training field |
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