CN105044599A - Unmanned aerial vehicle motor-propeller efficiency test device and method - Google Patents
Unmanned aerial vehicle motor-propeller efficiency test device and method Download PDFInfo
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- CN105044599A CN105044599A CN201510444025.5A CN201510444025A CN105044599A CN 105044599 A CN105044599 A CN 105044599A CN 201510444025 A CN201510444025 A CN 201510444025A CN 105044599 A CN105044599 A CN 105044599A
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Abstract
The invention discloses an unmanned aerial vehicle motor-propeller efficiency test device and method. The test device comprises a test stand, an electronic push/pull force meter, a control system, a thermometer and an external protective grille. The test stand comprises a base plate, a column and an upper bracket. The lower end of the column is fixed on the base plate. The outer end of the upper bracket is connected with the column through a sleeve to form a vertical sliding mechanism. The bottom of the electronic push/pull force meter is fixed on the base plate. The upper part is connected with the lower side of the upper bracket. The motor is fixed on the upper side of the upper bracket. A propeller is inversely arranged on a motor main shaft. The control system comprises an electronic speed governor, an electronic speed governor controller, a work state display and a power supply. The thermometer is arranged on one side of the external protective grille and is used for detecting the temperature of the motor. According to the test device provided by the invention, measured motor-propeller efficiency data have the advantages of high accuracy and being comprehensive and safe.
Description
Technical field
The present invention relates to a kind of testing apparatus and method, be specifically related to a kind of efficiency test device and the method that are suitable for unmanned plane motor-oar.
Background technology
In recent years, the application and research of unmanned plane is extensively subject to the attention of each side.And there is due to unmanned plane the advantages such as physical construction is simple, reliable and stable, easy manipulation, unmanned plane has progressively been shown one's talent from other unmanned plane kind, is widely used in present military affairs, scientific research, the every field such as civilian, agriculture.Unmanned plane provides lift, load of finishing the work primarily of multiple motor-oar combination running.Along with the widespread use of unmanned plane, increasing motor and oar occur commercially, the efficiency of its motor-oar (" motor-oar " of the present invention refers to the entirety that motor and oar are combined into) more and more comes into one's own, different motors and different oars are used in combination can have different efficiency, which type of oar which type of motor is joined and could be obtained best efficiency and become people's question of common concern, for this reason when selecting motor and oar, need to test the efficiency of motor-oar.
Unmanned plane is just rise gradually in recent years in China, and existing on market to be suitable for unmanned plane motor-oar efficiency test equipment very rare, and comparatively to survey the data precision not high, comprehensive not.First, general tensile test is all by pulling fixing dial plate tautness meter to read numeral, because motor-oar running pulls during spring and is difficult to reach steady state (SS), therefore causes the value of thrust of reading not accurate enough; Secondly, the existing testing apparatus overwhelming majority all only considers the maximum pull that motor-oar provides, and seldom pays close attention to its efficiency, when different accelerator open degree, motor institute wasted work rate and motor temperature are seldom paid close attention to by people, and cause surveyed data comprehensive not, cogency is inadequate.
Therefore, design that a kind of the data precision is high, data comprehensively, the efficiency test device being suitable for unmanned plane motor-oar of use safety has great importance.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of efficiency test device being suitable for unmanned plane motor-oar, the data precision of institute's measured motor-oar efficiency is high, data comprehensive to adopt this proving installation to make, and handling safety.
Another object of the present invention is the Efficiency test method of the unmanned plane motor-oar providing a kind of efficiency test device applying above-mentioned unmanned plane motor-oar to realize.
Object of the present invention is realized by following technical scheme:
Be suitable for an efficiency test device for unmanned plane motor-oar, it is characterized in that, comprise testing jig, electronics push/pull power meter, control system, temperature measurer and exterior protection guard, wherein:
Described testing jig comprises base plate, column and upper bracket, and wherein, described column lower end is fixed on base plate, and the outer end of described upper bracket forms vertical slide mechanism by sleeve connection on column; The bottom of described electronics push/pull power meter is fixed on base plate, and top is connected to the downside of upper bracket; Described motor is fixed on the upside of upper bracket, and described oar is counter to be contained on electric machine main shaft;
Described control system comprises electron speed regulator, electronic speed controller, duty display and power supply, wherein, described electronic speed controller, for generating steering order, exports controlled quentity controlled variable according to the expection output speed of institute's measured motor and working current and flows to electron speed regulator; Described electron speed regulator is connected with electronic speed controller, and the controlled quentity controlled variable for exporting according to electronic speed controller controls the different rotating speed of motor-oar; Described mode indicator is connected with electron speed regulator, for gathering and show the real-time working current value of motor; Described power supply is used for powering to motor and control system;
Described temperature measurer is arranged on the side on outside protection net, for detecting the temperature of motor.
A preferred version of the present invention, wherein, upper bracket comprises " ten " word support and be located at the motor base board of " ten " word frame upper central authorities, described motor is fixedly mounted on motor base board; Described " ten " word frame bottom central authorities are provided with the connecting hole for being connected with electronics push/pull power meter.Not only structure is simple to adopt the upper bracket of said structure, and is convenient to be connected with motor and electronics push/pull power meter.
Preferably, four outer ends of described " ten " word support arrange a sleeve respectively, in this sleeve, is provided with ball; Correspondingly, described column is four, and this column is straight optical axis, and each sleeve is enclosed within a root post respectively; Every root post is fixed on base plate by connecting pedestal.Adopt above-mentioned four sleeves and column to match to lead to the vertical motion of motor-oar, there is Stability Analysis of Structures, guiding accuracy advantages of higher.
A preferred version of the present invention, wherein, the bottom of described electronics push/pull power meter is fixed on the central authorities of base plate, described base plate is provided with the holder for fixing electronics push/pull power meter, this holder is " L " shape be formed by connecting by base and riser, and described base is provided with the connecting hole for being connected with electronics push/pull power meter; The bottom of described electronics push/pull power meter is fixed on base, and side is adjacent on described riser.By said structure, electronics push/pull power meter is obtained firmly and detachable connection.
A preferred version of the present invention, wherein, described base is made up of square plate, and four sides of this base are connected with described exterior protection guard.
Preferably, four sides of described base plate are provided with screw hole; The lower limb of described exterior protection guard is connected with sheet metal, and this sheet metal is provided with the connecting hole matched with the screw hole on bottom panel side, and described sheet metal is fixed by screws on four sides of base plate.This preferred version is adopted to have easy to connect, reliable advantage.
Preferably, one of them side of described exterior protection guard is arranged to can opening-closing structure, and exterior protection guard the side of folding can be provided with handle.Be convenient to like this change motor and blade.
An Efficiency test method for unmanned plane motor-oar that the proving installation applying above-mentioned unmanned plane motor-oar efficiency realizes, is characterized in that, comprise the following steps:
A. tested motor-oar is loaded on testing jig, sets supply voltage value V and connect power supply and other control loop, by electronics push/pull power meter peeling zero;
B. control the given opening value of electronic speed controller, record the thrust magnitude F1 of now electronics push/pull power meter, current value A1, and measure motor temperature value T1 with temperature measurer after keeping running 1min;
C. step b is repeated, control electronic speed controller other several opening values given, thrust magnitude F2, F3 of respective record electronics push/pull power meter when different opening value respectively ..., current value A2, A3 ..., and measure its motor temperature value T2, T3 with temperature measurer after keeping running 1min
D. with efficiency value E (g/w)=F/ (A*V) (gram/watt) of the tested motor-oar of following formulae discovery when each opening value, thus the efficiency of tested motor-oar can be evaluated; And whether there is temperature anomaly when evaluating motor-oar work in conjunction with described temperature value T.
Principle of work of the present invention is: set supply voltage value V, control the given opening value of electronic speed controller, control motor-oar by electron speed regulator to operate under this opening value, be contained in because oar is counter on electric machine main shaft, therefore motor-oar produces downward thrust to upper bracket, this thrust is on electronics push/pull power meter, thus the downward thrust F that acquisition motor-oar produces; In addition, obtained the real-time working electric current I of motor by mode indicator, then obtain the temperature variation in motor operation course by temperature measurer.Finally utilize the magnitude of voltage V of above-mentioned acquisition, motor-oar thrust F, working current I carries out the index that calculates to obtain evaluation motor-oar work efficiency, the computing method of this index are: work efficiency E=F/ (V*I), and unit is g/w (namely gram/watt); Thus the efficiency of tested motor-oar can be evaluated, and observe motor temperature T and judge whether to there is temperature anomaly situation, such as, whether there is the too high or situation such as too fast that heats up of temperature.
The present invention compared with prior art has following profitable effect:
1. the present invention adopts blade to be counter mounted on technical scheme on motor, alternative pulling force is carried out by the thrust measuring motor-oar, thus (" ground effect " refers to that helicopter is when subaerial height work can to eliminate the ground effect caused because of rotor wing rotation, the rotor air-flow clapped earthward is subject to the stop on ground, thus affects a kind of phenomenon of rotor aerodynamics.) and cause the inaccurate problem of test data (when adopt pulling force pattern time, to be the pulling force that produces of motor-oar combine with the gravity of upper bracket, motor-oar the pulling force that electronics push/pull power shows with joint efforts, therefore the actual pulling force that motor-oar produces will reject the impact of gravity part, therefore calculation of complex, low precision; And when adopting thrust mode of the present invention, power when being in static by motor-oar, electronics push/pull power shown is reference value, and the difference between power during motor-oar work, electronics push/pull power shown and said reference value is the actual thrust produced of motor-oar, this computation process is simple and accurate).
2. the present invention adopts electronics push/pull power meter to substitute in prior art the spring tension meter usually adopted, thus can measure to obtain the thrust of motor/oar in test process more exactly; And the real-time current value introduced in measuring method of the present invention in motor operation course and these two factors of temperature value, more all sidedly, scientifically weigh the height of institute's measured motor/oar efficiency.
3, in test process, motor-oar vertically moves, and the vertical friction force therefore produced between upper bracket and column is little, and therefore the impact of this friction force on the motor recorded-oar thrust is little, makes overall test structure more accurate.
4, the present invention is by arranging exterior protection guard, can prevent the blade relic of the High Rotation Speed when people is near speed governing and reading from flying out and injured, has good security.
Accompanying drawing explanation
Fig. 1 is the one-piece construction schematic diagram being suitable for an embodiment of the proving installation of unmanned plane motor/oar efficiency of the present invention.
Fig. 2 is polycrystalline substance schematic diagram in Fig. 1 illustrated embodiment.
Fig. 3 is the structural representation of Fig. 1 illustrated embodiment middle and upper part support.
Fig. 4 ~ Fig. 6 is the structural representation of Fig. 1 illustrated embodiment middle sleeve, and wherein, Fig. 4 is front view, and Fig. 5 is the A-A cut-open view of Fig. 4, and Fig. 6 is stereographic map.
Fig. 7 is the electric theory diagram of control system in Fig. 1 illustrated embodiment.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
See Fig. 1 ~ Fig. 7, the efficiency test device being suitable for unmanned plane motor-oar of the present invention comprises testing jig 1, electronics push/pull power meter 107, control system 2, temperature measurer and exterior protection guard.Wherein:
Described testing jig 1 comprises base plate 101, column 102 and upper bracket 103, and wherein, described column 102 lower end is fixed on base plate 101, and the outer end of described upper bracket 103 is connected on column 102 by sleeve 105 and forms vertical slide mechanism; The bottom of described electronics push/pull power meter 107 is fixed on base plate 101, and top is connected to the downside of upper bracket 103; Described motor is fixed on the upside of upper bracket 103, and described oar is counter to be contained on electric machine main shaft.
Described control system 2 comprises electron speed regulator 202, electronic speed controller 201, duty display and power supply 203, wherein, described electronic speed controller 201, for generating steering order, exports controlled quentity controlled variable according to the expection output speed of institute's measured motor and working current and flows to electron speed regulator 202; Described electron speed regulator 202 is connected with electronic speed controller 201, and the controlled quentity controlled variable for exporting according to electronic speed controller 201 controls the different rotating speed of motor-oar 104; Described mode indicator is connected with electron speed regulator, for gathering and show the real-time working current value of motor; Described power supply 203 is powered for giving motor and control system 2.
Described temperature measurer is being arranged on the side on outside protection net, for detecting the temperature of motor.
See Fig. 1 and Fig. 3, upper bracket 103 comprises " ten " word support and is located at the motor base board 108 of " ten " word frame upper central authorities, and described motor is fixedly mounted on motor base board 108; Described " ten " word frame bottom central authorities are provided with the connecting hole 112 for being connected with electronics push/pull power meter 107.Not only structure is simple to adopt the upper bracket 103 of said structure, and is convenient to be connected with motor and electronics push/pull power meter 107.
See Fig. 1 ~ Fig. 6, four outer ends of described " ten " word support arrange a sleeve 105 respectively, in this sleeve 105, is provided with ball 106; Correspondingly, described column 102 is four, and this column 102 is straight optical axis, and each sleeve 105 is enclosed within a root post 102 respectively; Every root post 102 is fixed on base plate 101 by connecting pedestal 109.Adopt above-mentioned four sleeves 105 and column 102 to match to lead to the vertical motion of motor-oar 104, there is Stability Analysis of Structures, guiding accuracy advantages of higher.
See 1 ~ Fig. 3, the bottom of described electronics push/pull power meter 107 is fixed on the central authorities of base plate 101, described base plate 101 is provided with the holder for fixing electronics push/pull power meter 107, this holder is " L " shape be formed by connecting by base 111 and riser 110, and described base 111 is provided with the connecting hole for being connected with electronics push/pull power meter 107; The bottom of described electronics push/pull power meter 107 is fixed on base 111, and side is adjacent on described riser 110.By said structure, electronics push/pull power meter 107 is obtained firmly and detachable connection.
See Fig. 1 and Fig. 2, described base 111 is made up of square plate, four sides of this base 111 is connected with exterior protection guard (not showing this guard in figure).By arranging exterior protection guard, can prevent the blade relic of the High Rotation Speed when people is near speed governing and reading from flying out and injured, there is good security.
See Fig. 1 and Fig. 2, four sides of described base plate 101 are provided with screw hole 113; The lower limb of described exterior protection guard is connected with sheet metal, and this sheet metal is provided with the connecting hole matched with the screw hole 113 on base plate 101 side, and described sheet metal is fixed by screws on four sides of base plate 101.This preferred version is adopted to have easy to connect, reliable advantage.
See Fig. 1 and Fig. 2, one of them side of described exterior protection guard is arranged to can opening-closing structure, and exterior protection guard the side of folding can be provided with handle.Be convenient to like this change motor and blade.
See Fig. 1 and Fig. 7, the method for testing of unmanned plane motor-oar efficiency that a kind of proving installation applying above-mentioned unmanned plane motor-oar efficiency realizes, comprises the following steps:
A. tested motor-oar 104 is loaded on testing jig 1, sets power supply 203 magnitude of voltage V and connect power supply 203 and other control loop, electronics push/pull power meter 107 is removed the peel zero;
B. control the given opening value of electronic speed controller 201, record the thrust magnitude F1 of now electronics push/pull power meter 107, current value A1, and measure motor temperature value T1 with temperature measurer after keeping running 1min;
C. step b is repeated, control electronic speed controller 201 other several opening values given, thrust magnitude F2, F3 of respective record electronics push/pull power meter 107 when different opening value respectively ... current value A2, A3 ..., and measure its motor temperature value T2, T3 with temperature measurer after keeping running 1min
D. with efficiency value E (the g/w)=F/ (A*V) of the tested motor-oar 104 of following formulae discovery when each opening value, thus the efficiency of tested motor-oar 104 can be evaluated; And evaluate when motor-oar 104 works whether there is temperature anomaly in conjunction with described temperature value T.
Principle of work of the present invention is: set power supply 203 magnitude of voltage V, control the given opening value of electronic speed controller 201, control motor-oar 104 by electron speed regulator 202 to operate under this opening value, be contained in because oar is counter on electric machine main shaft, therefore motor-oar 104 pairs of upper bracket 103 produce downward thrust, this thrust is on electronics push/pull power meter 107, thus the downward thrust F that acquisition motor-oar 104 produces; In addition, obtained the real-time working electric current I of motor by mode indicator, then obtain the temperature variation in motor operation course by temperature measurer.Finally utilize the magnitude of voltage V of above-mentioned acquisition, motor-oar 104 thrust F, working current I carry out the index that calculates to obtain evaluation motor-oar 104 work efficiency, the computing method of this index are: work efficiency E=F/ (V*I), and unit is g/w (namely gram/watt); Thus the efficiency of tested motor-oar can be evaluated, and observe motor temperature T and judge whether to there is temperature anomaly situation, such as, whether there is the too high or situation such as too fast that heats up of temperature.In practical application, by the efficiency of efficiency test device of the present invention motor-oar different from Measures compare, so that can choice for use efficiency optimization motor-oar.
Above-mentioned is the present invention's preferably embodiment; but embodiments of the present invention are not by the restriction of foregoing; change, the modification done under other any does not deviate from Spirit Essence of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (8)
1. be suitable for an efficiency test device for unmanned plane motor-oar, it is characterized in that, comprise testing jig, electronics push/pull power meter, control system, temperature measurer and exterior protection guard, wherein:
Described testing jig comprises base plate, column and upper bracket, and wherein, described column lower end is fixed on base plate, and the outer end of described upper bracket forms vertical slide mechanism by sleeve connection on column; The bottom of described electronics push/pull power meter is fixed on base plate, and top is connected to the downside of upper bracket; Described motor is fixed on the upside of upper bracket, and described oar is counter to be contained on electric machine main shaft;
Described control system comprises electron speed regulator, electronic speed controller, duty display and power supply, wherein, described electronic speed controller, for generating steering order, exports controlled quentity controlled variable according to the expection output speed of institute's measured motor and working current and flows to electron speed regulator; Described electron speed regulator is connected with electronic speed controller, and the controlled quentity controlled variable for exporting according to electronic speed controller controls the different rotating speed of motor-oar; Described mode indicator is connected with electronic speed controller, for gathering and show the real-time working current value of motor; Described power supply is used for powering to motor and control system;
Described temperature measurer is arranged on the side on exterior protection guard, for detecting the temperature of motor.
2. the efficiency test device being suitable for unmanned plane motor-oar according to claim 1, is characterized in that, upper bracket comprises " ten " word support and be located at the motor base board of " ten " word frame upper central authorities, and described motor is fixedly mounted on motor base board; Described " ten " word frame bottom central authorities are provided with the connecting hole for being connected with electronics push/pull power meter.
3. the efficiency test device being suitable for unmanned plane motor-oar according to claim 2, is characterized in that, four outer ends of described " ten " word support arranges a sleeve respectively, is provided with ball in this sleeve; Correspondingly, described column is four, and this column is straight optical axis, and each sleeve is enclosed within a root post respectively; Every root post is fixed on base plate by connecting pedestal.
4. the efficiency test device being suitable for unmanned plane motor-oar according to Claims 2 or 3, it is characterized in that, the bottom of described electronics push/pull power meter is fixed on the central authorities of base plate, described base plate is provided with the holder for fixing electronics push/pull power meter, this holder is " L " shape be formed by connecting by base and riser, and described base is provided with the connecting hole for being connected with electronics push/pull power meter; The bottom of described electronics push/pull power meter is fixed on base, and side is adjacent on described riser.
5. the efficiency test device being suitable for unmanned plane motor-oar according to any one of claims 1 to 3, is characterized in that, described base is made up of square plate, and four sides of this base are connected with described exterior protection guard.
6. the efficiency test device being suitable for unmanned plane motor-oar according to claim 5, is characterized in that, four sides of described base plate are provided with screw hole; The lower limb of described exterior protection guard is connected with sheet metal, and this sheet metal is provided with the connecting hole matched with the screw hole on bottom panel side, and described sheet metal is fixed by screws on four sides of base plate.
7. the efficiency test device being suitable for unmanned plane motor-oar according to claim 6, is characterized in that, one of them side of described exterior protection guard is arranged to can opening-closing structure, and exterior protection guard the side of folding can be provided with handle.
8. application rights requires an Efficiency test method for unmanned plane motor-oar that the efficiency test device being suitable for unmanned plane motor-oar described in 1 ~ 7 any one realizes, it is characterized in that, comprises the following steps:
A. tested motor-oar is loaded on testing jig, sets supply voltage value V and connect power supply and other control loop, by electronics push/pull power meter peeling zero;
B. control the given opening value of electronic speed controller, record the thrust magnitude F1 of now electronics push/pull power meter, current value I1, and measure motor temperature value T1 with temperature measurer after keeping running 1min;
C. step b is repeated, control electronic speed controller other several opening values given, thrust magnitude F2, F3 of respective record electronics push/pull power meter when different opening value respectively ..., current value A2, A3 ..., and measure its motor temperature value T2, T3 with temperature measurer after keeping running 1min
D. with efficiency value E (g/w)=F/ (I*V) (gram/watt) of the tested motor-oar of following formulae discovery when each opening value, thus the efficiency of tested motor-oar can be evaluated; And whether there is temperature anomaly when evaluating motor-oar work in conjunction with described temperature value T.
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| CN105911469A (en) * | 2016-05-19 | 2016-08-31 | 安翔泰岳（镇江）航空科技有限公司 | Motor performance test bench |
| CN106872085A (en) * | 2017-03-08 | 2017-06-20 | 武汉飞流智能技术有限公司 | A kind of unmanned plane horn kinetic energy efficiency automatic test device |
| CN107202918A (en) * | 2017-06-19 | 2017-09-26 | 华南农业大学 | A kind of dynamic loading electric power unmanned plane effective operation Energy Consumption Evaluation method |
| CN107677959A (en) * | 2017-08-09 | 2018-02-09 | 杭州威衡科技有限公司 | Unmanned plane induction machine combined test stand and method of testing |
| CN108928504A (en) * | 2018-09-07 | 2018-12-04 | 江苏航空职业技术学院 | A kind of multi-rotor unmanned aerial vehicle components detection device |
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| CN106872085B (en) * | 2017-03-08 | 2020-09-04 | 武汉飞流智能技术有限公司 | Automatic testing arrangement of unmanned aerial vehicle horn kinetic energy efficiency |
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| CN107677959A (en) * | 2017-08-09 | 2018-02-09 | 杭州威衡科技有限公司 | Unmanned plane induction machine combined test stand and method of testing |
| CN108928504A (en) * | 2018-09-07 | 2018-12-04 | 江苏航空职业技术学院 | A kind of multi-rotor unmanned aerial vehicle components detection device |
| CN117554807A (en) * | 2023-11-13 | 2024-02-13 | 中航国际科技成果转化基地(蚌埠)有限公司 | Linear motor performance testing device |
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