CN109625320B - Running-in test and torque test device and method for rotor wing transmission system - Google Patents
Running-in test and torque test device and method for rotor wing transmission system Download PDFInfo
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- CN109625320B CN109625320B CN201811629763.7A CN201811629763A CN109625320B CN 109625320 B CN109625320 B CN 109625320B CN 201811629763 A CN201811629763 A CN 201811629763A CN 109625320 B CN109625320 B CN 109625320B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- B64F5/00—Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided for; Handling, transporting, testing or inspecting aircraft components, not otherwise provided for
- B64F5/60—Testing or inspecting aircraft components or systems
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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
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
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Abstract
The invention discloses a running-in test and torque test device of a rotor wing transmission system, which comprises: the torque tool rack comprises a base, a fixing component and a stepless speed regulating motor which are arranged on the base, a motor driver connected with the stepless speed regulating motor, a clutch device arranged between the stepless speed regulating motor and the tested rotor wing transmission system, and a locking device arranged on the base and positioned on the axis of the power shaft of the tested rotor wing transmission system; the torque load truss comprises a section truss and weights arranged on the section truss; and the tested transmission system comprises a tested rotor transmission system arranged on the fixed assembly and two torsion arms fixed with a rotor hub of the tested rotor transmission system, wherein one torsion arm is fixedly connected with the weight, and the other torsion arm is fixed in the direction opposite to the section truss. The invention also provides a running-in test and torque test method of the rotor wing transmission system. The invention has the beneficial effects that: the defects of reliability and the like of the rotor wing transmission system are convenient to find in time.
Description
Technical Field
The invention relates to the technical field of aircraft manufacturing, in particular to a running-in test and torque test device and method for a rotor wing transmission system.
Background
With the increasing role and status of helicopters in modern war and national economic construction, helicopters are attracting more and more attention from developed countries of various industries, especially the reliability and safety of helicopters, and the reliability, maintainability and supportability are key characteristics that affect the operational efficiency, operational adaptability and life cycle cost of helicopters.
Reliability is generated at an early design stage, however, this reliability is only achieved through the process of trial analysis and modification, the design approach will provide a valuable thorough understanding of the reliability characteristics, but there are still various problems that are completely unpredictable or only exposable through trial, and the design can only be developed and refined by trial to reveal these defects and then re-design or modify to solve them.
The torque characteristic of the helicopter transmission system is characterized by large working torque, obvious alternating stress bearing characteristic and the like, the load application is difficult in the torque characteristic test process, and different structural forms of the transmission system can be influenced by factors such as temperature, vibration and the like. Therefore, a special transmission system torque testing tool is especially necessary to design. In the test process, if the product has a reliability defect (fault), the fault part is replaced immediately, the test is continued after the fault part is repaired, the fault is analyzed, effective targeted measures are taken for correction, and the reliability of the product is improved.
Disclosure of Invention
In order to solve the above problems, an object of the present invention is to provide a running-in test and torque test apparatus and a running-in test and torque test method for a rotor transmission system, which are convenient for finding out the defects of the rotor transmission system such as reliability in time.
The invention provides a running-in test and torque test device of a rotor wing transmission system, which comprises:
the torque tooling rack is used for providing output power for running-in test of a tested transmission system and comprises a base, a fixing component arranged on the base, a stepless speed regulating motor arranged on the base, a motor driver connected with the stepless speed regulating motor, a clutch device arranged between the stepless speed regulating motor and the tested rotor transmission system and a locking device arranged on the base and positioned on the axis position of a power shaft of the tested rotor transmission system;
the torque load truss is used for applying load for torque test of the tested transmission system, guiding the load application direction and bearing the weight of the load, and comprises a section truss and weights mounted on the section truss;
and the tested transmission system is used for receiving the output power of the torque tool rack in a running-in test and bearing the applied load of the torque load truss in a torque test, and comprises a tested rotor transmission system installed on the fixed assembly and two torsion arms fixed with a rotor hub of the tested rotor transmission system, wherein one torsion arm is fixedly connected with the weight, and the other torsion arm is fixed in the direction opposite to the direction of the profile truss.
As a further improvement of the invention, one end of the clutch device is connected with a motor spindle of the stepless speed regulating motor, and the other end of the clutch device is connected with a power shaft of the tested rotor transmission system.
As a further improvement of the invention, the fixing assembly comprises: the device comprises a first fixing device arranged on the base, a third fixing device used for installing the tested rotor wing transmission system, and a second fixing device arranged between the first fixing device and the third fixing device.
As a further improvement of the invention, one end of the clutch device is arranged on a motor spindle of the stepless speed regulating motor through an adapter.
As a further improvement of the invention, a fixed pulley is arranged on the top of the section truss, one end of a rope is connected with one torsion arm, and the other end of the rope is connected with the weight after passing through the fixed pulley.
As a further improvement of the invention, the torque tooling rack further comprises a temperature sensor arranged on the tested rotor transmission system reducer and a computer connected with the motor driver and the temperature sensor.
The invention also provides a running-in test and torque test method of the running-in test and torque test device of the rotor wing transmission system, which comprises the following steps:
fixing the tested rotor transmission system on the fixing component, and connecting the tested rotor transmission system with a stepless speed regulating motor on the base through a clutch device;
the motor driver adjusts the set rotating speed and the running time, drives the stepless speed regulating motor to rotate and starts a running-in test;
the output power of the stepless speed regulating motor is transmitted to the tested rotor wing transmission system after passing through the clutch, and the tested rotor wing transmission system runs in;
after the set running time is over, the running-in test is over, the clutch device is disconnected with the tested rotor transmission system, and the stability and reliability of the no-load running of the tested rotor transmission system are observed or determined through an instrument;
the locking device locks a power shaft of the tested rotor wing transmission system, so that the tested rotor wing transmission system cannot rotate freely, and a position mark is marked at a proper position of the tested rotor wing transmission system;
one end of a rope is fixedly connected with one torsion arm, the other end of the rope is fixedly connected with a weight after passing through a fixed pulley arranged on a section truss, the other torsion arm is fixed through the rope in the direction opposite to that of the section truss, and at the moment, a pair of horizontal acting forces in opposite directions are applied to a rotor hub of the tested rotor transmission system;
after torque is applied, setting time and starting static torque load test;
after the static torque load test is finished, observing whether the position mark is dislocated or not, measuring the main shaft of the rotor hub through an instrument and determining whether the main shaft of the rotor hub is deformed or not;
then the clutch device is connected with the transmission system of the rotor to be tested, and the motor driver adjusts the set rotating speed and the operating time to drive the stepless speed regulating motor to rotate;
and observing the bending and swinging conditions of the power shaft of the tested rotor wing transmission system, and determining whether the power shaft of the tested rotor wing transmission system deforms or not.
As a further improvement of the invention, when the motor driver works, a computer monitors and controls the data of the motor driver.
As a further improvement of the invention, during running-in test, a temperature sensor arranged on the tested rotor transmission system reducer measures the temperature data of the tested rotor transmission system reducer in real time, and a computer monitors and controls the temperature sensor.
As a further improvement of the invention, the output power of the motor spindle of the stepless speed regulating motor is transmitted to the clutch device through the adapter, and then transmitted to the power shaft of the tested rotor transmission system.
The invention has the beneficial effects that:
compact structure, single test item is many, and the commonality is strong, and expansibility is strong, and the later stage can be extended into transmission system fatigue test frock through increasing relevant structure.
The method can analyze and evaluate the task efficiency, adaptability and life cycle of the rotor wing transmission system, provide more accurate reference basis, and find the defects in the design and manufacture of the helicopter transmission system through test tests so as to take improvement measures as soon as possible, improve the reliability level of the whole helicopter, realize the reliability increase and provide basis for evaluating the reliability level of a mature helicopter and required guarantee resources.
Drawings
FIG. 1 is a schematic connection diagram of a running-in test and torque test apparatus for a rotor drive train according to an embodiment of the present invention;
FIG. 2 is a schematic connection diagram of a running-in test and torque test apparatus for a rotor drive train according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a torque tool rack according to an embodiment of the present invention.
In the figure, the position of the upper end of the main shaft,
101. a base; 102. a first fixing device; 103. a second fixing device; 104. a third fixing device; 105. a clutch device; 106. an adapter; 107. a locking device; 108. a stepless speed regulating motor; 109. a motor driver; 110. a computer; 111. a temperature sensor; 200. a torque load truss; 201. a section truss; 202. a fixed pulley; 203. a rope; 204. a weight; 300. a transmission system under test; 301. a measured rotor drive train; 302. a torsion arm.
Detailed Description
The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.
Embodiment 1, as shown in fig. 1-3, a running-in test and torque test apparatus for a rotor drive train according to an embodiment of the present invention includes: the test system comprises a torque tooling rack, a torque load truss 200 and a tested transmission system 300, wherein the torque tooling rack is used for providing output power for a running-in test of the tested transmission system 300, the torque load truss 200 is used for applying load for the torque test of the tested transmission system 300 and guiding the load application direction and the load bearing weight, and the tested transmission system 300 is used for receiving the output power of the torque tooling rack in the running-in test and bearing the load applied by the torque load truss 200 in the torque test.
The torque tooling rack comprises a base 101, a fixing component arranged on the base 101, a stepless speed regulating motor 108 arranged on the base 101, a motor driver 109 connected with the stepless speed regulating motor 108, a clutch device 105 arranged between the stepless speed regulating motor 108 and the tested rotor wing transmission system 301, and a locking device 107 arranged on the base 101 and positioned on the axis of the power shaft of the tested rotor wing transmission system 301. The base 101 is fixed on a horizontal plane through foundation bolts, and the whole base 101 is formed by welding and splicing steel plates. To firmly fix the measured transmission system 300, further, the fixing assembly includes: a first fixture 102 mounted on base 101, a third fixture 104 for mounting rotor drive system 301 under test, and a second fixture 103 mounted between first fixture 102 and third fixture 104.
The torque load truss 200 comprises a profile truss 201 and weights 204 mounted on the profile truss 201. The main structure of the profile truss 201 can be built by splicing profiles, and is used for guiding the load application direction and bearing the weight of the load. When the torque load truss 200 applies load to the tested transmission system 300 through the weight 204, the fixed pulley 202 and the rope 203 are required to be fixedly connected in an auxiliary mode. Fixed pulley 202 is fixed on the top of section truss 201 vertically upwards, one end of rope 203 is connected with one torsion arm 302, and after passing through fixed pulley 202, the other end of rope 203 is connected with weight 204, so that load application to rotor drive system 301 to be tested is realized.
The transmission system 300 to be tested comprises a rotor transmission system 301 to be tested and mounted on a fixed assembly, and two torque arms 302 fixed to the rotor hub of the rotor transmission system 301 to be tested, wherein the torque arms 302 are customized according to the structural characteristics of the transmission system 300 to be tested, one end of each torque arm 302 is fixedly connected to the rotor hub and has a specific length (i.e. a moment arm), the other end of one torque arm 302 is fixedly connected to the rope 203 to be connected to the weight 204, and the other end of the other torque arm 302 is fixed to the opposite direction of the section truss 201 through the rope. The tested rotor transmission system 301 can adopt a typical transmission system in the prior art, namely a main reducer, an intermediate reducer, a tail reducer, a power shaft and a tail transmission shaft, and can be designed according to requirements only by ensuring that the power shaft of the tested rotor transmission system 301 is connected with a motor spindle of the stepless speed regulating motor 108 and receiving the output power transmitted by the stepless speed regulating motor 108.
The first fixing device 102 is installed on the base 101, the second fixing device 103 is installed on the first fixing device 102, the third fixing device 104 is installed on the second fixing device 103, the tested transmission system 300 is installed on the third fixing device 104, the stepless speed regulating motor 108 is installed on the base 101, one end of the clutch device 105 is connected with a motor spindle of the stepless speed regulating motor 108 through the adapter 106, the other end of the clutch device 105 is connected with a power shaft of the tested rotor transmission system 301, and the motor spindle of the stepless speed regulating motor 108 is overlapped with the power shaft of the tested rotor transmission system 301. Clutch assembly 105 couples the motor shaft of the infinitely variable speed motor 108 to the power shaft of the measured rotor drive 301, and facilitates disengagement and engagement of the two during machine operation, and transfers torque therebetween. The clutch device 105 may be designed and selected according to the requirement, and any structure capable of transmitting torque between the motor spindle of the stepless speed regulating motor 108 and the power shaft of the tested rotor transmission system 301 may be implemented, for example, a disk friction clutch. The adapter 106 is designed according to the structures of the clutch device 105 and the motor spindle of the stepless speed regulating motor 108, and the adapter 106 is arranged to facilitate the clutch device 105 to be installed on the motor spindle of the stepless speed regulating motor 108. Locking device 107 is located the rotor drive system 301 power shaft axis position of being surveyed, and is not functional when being surveyed rotor drive system 301 developments running-in operation test, is responsible for locking the rotor drive system 301 power shaft of being surveyed when being surveyed rotor drive system 301 static torque test, and then can exert static torque in rotor hub position department, and locking device 107 can design according to the demand, and it can to the realization to be surveyed rotor drive system 301 power shaft locking. The stepless speed regulating motor 108 is responsible for providing power for the tested rotor transmission system 301 when the tested rotor transmission system is in operation test. The motor driver 109 realizes the real-time control of the switch and the rotating speed of the stepless speed regulating motor 108. Temperature sensor 111 on the decelerator of rotor drive system 301 under test detects temperature data of the decelerator in real time. The computer 110 is responsible for recording parameters of the temperature sensor 111, the motor driver 109 and other devices in real time and monitoring the whole test process in real time.
The running-in test principle of the running-in test and torque test device of the rotor wing transmission system is as follows: the stepless speed regulating motor 108 outputs power to the tested rotor transmission system 301 through the adapter 106 and the clutch device 105, the motor driver 109 adjusts the set rotating speed, the tested rotor transmission system 301 runs in, the temperature sensor 111 arranged on the tested speed reducer box body can monitor the temperature and other parameters of the speed reducer box in real time through the computer 110 and other equipment, and meanwhile, the computer 110 can also monitor and control the motor driver 109. After the set running time is over, the main components of the rotor transmission system 301 to be tested are disassembled, and the stability and reliability of the no-load running of the transmission system can be determined by means of instrument measurement, visual observation and the like.
The static torque test principle of the running-in test and torque test device of the rotor wing transmission system is as follows: at this time, the power systems such as the stepless speed regulating motor 108 and the like do not work, and the clutch device 105 is disconnected with the tested rotor wing transmission system 301. The locking device 107 locks a power shaft of the tested rotor wing transmission system 301 to enable the tested rotor wing transmission system 301 not to rotate freely, a position mark is defined at a proper position of the tested rotor wing transmission system 301, a pair of horizontal acting forces in opposite directions are applied to a rotor wing hub position through the torque load truss 200 and the torsion arm 302, the acting force is determined according to the required torque and the length of a force arm, a static torque load test is carried out for a set time after the torque is applied, and after the test is finished, whether the transmission system deforms or not is determined through means of observing whether the mark is dislocated, measuring the deformation of a main shaft of the hub, observing the bending swing of the main shaft after the transmission system operates again and the like.
Embodiment 2, a running-in test and torque test method for a rotor drive system, based on the running-in test and torque test apparatus for a rotor drive system described in embodiment 1, includes:
fixing the tested rotor transmission system 301 on the fixing component, and connecting the tested rotor transmission system 301 with the stepless speed regulating motor 108 on the base 101 through the clutch device 105;
the motor driver 109 adjusts the set rotating speed and the running time, drives the stepless speed regulating motor 108 to rotate, and starts a running-in test;
the output power of the stepless speed regulating motor 108 is transmitted to the tested rotor wing transmission system 301 after passing through the clutch device 105, and the tested rotor wing transmission system 301 runs in;
after the set running time is over, the running-in test is over, the clutch device 105 is disconnected with the tested rotor transmission system 301, and the stability and reliability of the no-load running of the tested rotor transmission system 301 are observed or determined through an instrument;
locking device 107 locks the power shaft of measured rotor drive system 301, so that measured rotor drive system 301 cannot rotate freely, and marks a position at a proper position of measured rotor drive system 301;
one end of a rope 203 is fixedly connected with one torsion arm 302, the other end of the rope is fixedly connected with a weight 204 after passing through a fixed pulley 202 arranged on the section truss 201, the other torsion arm 302 is fixedly connected with the section truss 201 through the rope in the opposite direction, and at the moment, a pair of horizontal acting forces in opposite directions are exerted on a rotor hub of the tested rotor drive system 301;
after torque is applied, setting time and starting static torque load test;
after the static torque load test is finished, observing whether the position mark is dislocated or not, measuring the main shaft of the rotor hub through an instrument and determining whether the main shaft of the rotor hub is deformed or not;
then, the clutch device 105 is connected with the tested rotor transmission system 301, and the motor driver 109 adjusts the set rotating speed and the set operating time to drive the stepless speed regulating motor 108 to rotate;
the bending oscillations of the power shaft of measured rotor drive system 301 are observed and it is determined whether the power shaft of measured rotor drive system 301 is deformed.
Further, when the motor driver 109 works, the computer 110 performs data monitoring and control on the motor driver 109, and monitors motor parameters of the stepless speed regulating motor 108 in real time.
Further, during running-in test, the temperature sensor 111 mounted on the reducer of the tested rotor transmission system 301 measures the temperature data of the reducer of the tested rotor transmission system 301 in real time, and the computer 110 monitors and controls the temperature sensor 111 to monitor the temperature parameter of the reducer of the tested rotor transmission system 301 in real time.
Further, the output power of the motor spindle of the stepless speed regulating motor 108 is transmitted to the clutch device 105 through the adapter 106, and then transmitted to the power shaft of the tested rotor transmission system 301.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A running-in test and torque test device for a rotor drive train, comprising:
the torque tooling rack is used for providing output power for running-in test of a tested transmission system (300), and comprises a base (101), a fixing component arranged on the base (101), a stepless speed regulating motor (108) arranged on the base (101), a motor driver (109) connected with the stepless speed regulating motor (108), a clutch device (105) arranged between the stepless speed regulating motor (108) and the tested rotor transmission system (301), and a locking device (107) arranged on the base (101) and positioned on the axis position of a power shaft of the tested rotor transmission system (301);
the torque load truss (200) is used for applying load for torque test of the tested transmission system (300), guiding the load application direction and bearing the weight of the load, and the torque load truss (200) comprises a section truss (201) and a weight (204) mounted on the section truss (201);
the transmission system (300) to be tested is used for receiving the output power of the torque tooling rack in a running-in test and bearing the applied load of the torque load truss (200) in a torque test, the transmission system (300) to be tested comprises a rotor transmission system (301) to be tested and two torsion arms (302) fixed with a rotor hub of the rotor transmission system (301) to be tested, one torsion arm (302) is fixedly connected with the weight (204), the other torsion arm (302) is fixed in the direction opposite to the direction of the section truss (201), a fixed pulley (202) is installed on the top of the section truss (201), one end of a rope (203) is connected with one torsion arm (302), and the other end of the rope (203) is connected with the weight (204) after passing through the fixed pulley (202).
2. The running-in test and torque test device according to claim 1, wherein one end of the clutch device (105) is connected with a motor spindle of the stepless speed regulating motor (108), and the other end of the clutch device (105) is connected with a power shaft of the tested rotor transmission system (301).
3. The break-in and torque testing device of claim 1, wherein the securing assembly comprises: a first fixing device (102) mounted on the base (101), a third fixing device (104) for mounting the rotor drive system (301) under test, and a second fixing device (103) mounted between the first fixing device (102) and the third fixing device (104).
4. A break-in test and torque test device according to claim 2, characterized in that the clutch device (105) is mounted at one end on the motor spindle of the infinitely variable speed motor (108) by means of an adapter (106).
5. The running-in test and torque testing device according to claim 1, wherein the torque tool rack further comprises a temperature sensor (111) mounted on the speed reducer of the rotor drive system (301) under test, and a computer (110) connected to the motor driver (109) and the temperature sensor (111).
6. A method of running-in testing and torque testing using a rotor drive train running-in and torque testing apparatus according to any one of claims 1 to 5, comprising:
the rotor transmission system (301) to be tested is fixed on the fixing component and is connected with the stepless speed regulating motor (108) on the base (101) through the clutch device (105);
the motor driver (109) adjusts the set rotating speed and the running time, drives the stepless speed regulating motor (108) to rotate, and starts a running-in test;
the output power of the stepless speed regulating motor (108) is transmitted to the tested rotor transmission system (301) after passing through the clutch device (105), and the tested rotor transmission system (301) runs in;
after the set running time is over, the running-in test is over, the clutch device (105) is disconnected with the tested rotor transmission system (301), and the stability and reliability of the no-load running of the tested rotor transmission system (301) are observed or determined through an instrument;
the locking device (107) locks a power shaft of the tested rotor transmission system (301) to prevent the tested rotor transmission system (301) from rotating freely, and marks a position mark at a proper position of the tested rotor transmission system (301);
one end of a rope (203) is fixedly connected with one torsion arm (302), the other end of the rope passes through a fixed pulley (202) arranged on the section truss (201) and then is fixedly connected with a weight (204), the other torsion arm (302) is fixed through the rope in the direction opposite to that of the section truss (201), and at the moment, a pair of horizontal acting forces in opposite directions are applied to a rotor hub of the tested rotor transmission system (301);
after torque is applied, setting time and starting static torque load test;
after the static torque load test is finished, observing whether the position mark is dislocated or not, measuring the main shaft of the rotor hub through an instrument and determining whether the main shaft of the rotor hub is deformed or not;
then the clutch device (105) is connected with the tested rotor transmission system (301), and the motor driver (109) adjusts the set rotating speed and the operating time to drive the stepless speed regulating motor (108) to rotate;
and observing the bending and swinging conditions of the power shaft of the tested rotor transmission system (301), and determining whether the power shaft of the tested rotor transmission system (301) deforms or not.
7. The break-in test and torque test method according to claim 6, wherein a computer (110) monitors and controls data of the motor driver (109) while the motor driver (109) is in operation.
8. The running-in test and torque test method according to claim 6, wherein during the running-in test, the temperature sensor (111) installed on the tested rotor transmission system (301) speed reducer measures the temperature data of the tested rotor transmission system (301) speed reducer in real time, and the computer (110) monitors and controls the temperature sensor (111) in data.
9. The running-in test and torque test method according to claim 6, wherein the output power of the motor spindle of the stepless speed regulating motor (108) is transmitted to the clutch device (105) through an adapter (106) and then transmitted to the power shaft of the tested rotor transmission system (301).
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| CN110657973B (en) * | 2019-09-29 | 2021-05-14 | 中国直升机设计研究所 | Damper rod end fatigue test loading device |
| CN112193435B (en) * | 2020-10-12 | 2024-07-02 | 中国科学院沈阳自动化研究所 | Unmanned helicopter oar sends out and matches test system |
| CN112945548A (en) * | 2021-02-01 | 2021-06-11 | 中国兵器工业计算机应用技术研究所 | Running-in test and torque test device and method for coaxial double-propeller unmanned helicopter |
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