A propeller test bench capable of performing three-way tension and pressure testing

Abstract

The invention discloses a propeller test bench capable of performing three-way tension and pressure testing, comprising a motor, a motor seat, a test platform, a main platform, an X-direction tension and pressure testing module, a Y-direction tension and pressure testing module, a Z-direction tension and pressure testing module, a Y-direction truss, a Y-direction inner truss, an X-direction truss, an X-direction inner truss, and a tension and pressure sensor; the propeller test bench can simultaneously complete tension and pressure testing in the three directions of X, Y, and Z, so that relevant personnel can analyze the characteristics of propellers of various shapes through data, thereby improving the flight efficiency of propellers and unmanned aerial vehicles.

Description

Technical Field

[0001] Currently, drones are used in a wide variety of fields, such as terrain mapping, material transportation, maritime rescue, and target reconnaissance and strike. With the increasing number of applications, it has become apparent that drones used in different fields have different priorities. Some require flexibility, some speed, and some payload capacity. The most significant factor affecting these performance characteristics is the shape of the propeller. Therefore, to understand the performance characteristics of propellers with various shapes, it is necessary to build a testing platform capable of performing propeller tests. The testing platform described in this patent can accomplish this task, allowing for simultaneous X, Y, and Z-axis tensile and compressive stress tests on the propeller. Background Technology

[0002] Currently, drones are used in a wide variety of fields, such as terrain mapping, material transportation, maritime rescue, and target reconnaissance and strike. With the increasing number of applications, it has become apparent that drones used in different fields have different priorities. Some require flexibility, some speed, and some payload capacity. The most significant factor affecting these performance characteristics is the shape of the propeller. Therefore, to understand the performance characteristics of propellers with various shapes, it is necessary to build a testing platform capable of performing propeller tests. The testing platform described in this patent can accomplish this task, allowing for simultaneous X, Y, and Z-axis tensile and compressive stress tests on the propeller. Summary of the Invention

[0003] This invention discloses a propeller test stand capable of performing three-dimensional tensile and compressive stress tests. This propeller test stand can simultaneously complete tensile and compressive stress tests in the X, Y, and Z directions, enabling relevant personnel to analyze the characteristics of propellers of various shapes through data, thereby improving the flight efficiency of propellers and drones.

[0004] The technical solution of the present invention is as follows:

[0005] A propeller test bench capable of performing triaxial tensile and compressive stress testing includes a motor, a motor base, a test platform, a main platform, an X-axis tensile and compressive stress testing module, a Y-axis tensile and compressive stress testing module, a Z-axis tensile and compressive stress testing module, a Y-axis truss, a Y-axis inner truss, an X-axis truss, an X-axis inner truss, and tensile and compressive stress sensors.

[0006] The propeller under test is fixed to the motor; the motor is connected to the motor mount; the motor mount is fixed to the test platform; four test platform legs are connected to the test platform; the other end of the test platform legs is connected to the main platform; a Z-axis tensile and compressive testing module is connected between the test platform and the main platform; four Y-axis linear bearings are embedded in the main platform; a Y-axis optical axis is installed on the Y-axis linear bearing; the Y-axis optical axis passes through the X-axis inner truss and is fixed on the outside of the X-axis inner truss by a Y-axis locking terminal; a Y-axis tensile and compressive testing module is connected between the X-axis inner truss and the main platform; four X-axis bearing seats are installed on the X-axis inner truss and the Y-axis inner truss, each X-axis bearing seat contains an X-axis linear bearing, an X-axis optical axis is installed on the X-axis linear bearing, the X-axis optical axis passes through the Y-axis truss and is fixed on the outside of the Y-axis truss by an X-axis locking terminal; an X-axis tensile and compressive testing module is connected between the Y-axis truss and the Y-axis inner truss; the test platform fixing feet are connected to the X-axis truss.

[0007] Furthermore, the tension / compression sensor connecting foot one is threaded to the fixed object one and locked by the locking nut one; the tension / compression sensor connecting foot two is threaded to the fixed object two and locked by the locking nut two.

[0008] Furthermore, the motor mount is fixed to the test platform using motor mount fixing screws.

[0009] Furthermore, the test stand's mounting feet can connect to the ground, the test stand, and the ground piles.

[0010] The advantages of this invention are: 1. It can simultaneously perform tensile and compressive tests in the X, Y, and Z directions, allowing relevant personnel to analyze the characteristics of propellers of various shapes through data, thereby improving the flight efficiency of propellers and UAVs; 2. The motor mount adopts a modular design, allowing for the replacement of different motor mounts according to different motors and propellers under test, without limiting the testing range of the motors and propellers; 3. The overall testing platform is in a relatively static state during operation, and all measurement processes are completed using sensors, eliminating the need for large-scale movement of the test component, resulting in good anti-interference performance; 4. The entire machine adopts a double-layer, three-directional structural arrangement, which is relatively compact and occupies a small area, facilitating setup and testing. Attached Figure Description Figure 1 Top view of the propeller test stand;

[0011] Figure 2 Top front view of the propeller test stand;

[0012] Figure 3 The connection method for each test module;

[0013] Figure 4 This is a 45° isometric side view;

[0014] In the diagram: 1. X-axis bearing housing; 2. X-axis optical axis; 3. X-axis locking terminal; 4. Y-axis truss; 5. X-axis tensile / compression test module; 6. Y-axis linear bearing; 7. Y-axis optical axis; 8. Y-axis locking terminal; 9. X-axis truss; 10. Y-axis tensile / compression test module; 11. X-axis inner truss; 12. Motor mount fixing screw; 13. Propeller under test; 14. Y-axis inner truss; 15. Test platform leg mounting hole. In the diagram: 16. Test platform fixing foot; 17. Test platform leg; 18. Motor; 19. Motor mount; 20. Test platform; 21. Main platform; 22. Z-axis tensile / compression test module; 23. Fixture 1; 24. Tension / compression sensor connection foot 1; 25. Locking nut 1; 26. Tension / compression sensor; 27. Locking nut 2; 28. Fixture 2; 29. ​​Tension / compression sensor connection foot 2. Detailed Implementation

[0015] A propeller test stand capable of performing triaxial tensile and compressive stress tests includes a propeller under test 13, a motor 18, a motor mount 19, a test platform 20, and a main platform 21;

[0016] The propeller 13 under test is fixed to the motor 18; the motor 18 is connected to the motor base 19; the motor base 19 is fixed to the test platform 20 by the motor base fixing screws 12; four test platform legs 17 are connected to the test platform 20; the other end of the test platform legs 17 is confined within the main platform 21; a Z-direction tensile and compressive testing module 22 is connected between the test platform 20 and the main platform 21; four Y-direction linear bearings 6 are embedded in the main platform 21; a Y-direction optical axis 7 is installed on the bearing; the Y-direction optical axis 7 passes through the X-direction inner truss 11 and is fixed on the outside of the truss by a Y-direction locking terminal 8; a Y-direction tensile and compressive testing module 10 is connected between the X-direction inner truss 11 and the main platform 21; four X-direction bearing seats 1 are installed on the X-direction inner truss 11 and the Y-direction inner truss 14, each X-direction bearing seat 1 contains a linear bearing, and an X-direction optical axis 2 is installed on the bearing. The X-axis optical axis 2 passes through the Y-axis truss 4 and is fixed on the outside of the truss by the X-axis locking terminal 3; the Y-axis truss 4 and the Y-axis inner truss 14 are connected by an X-axis tensile and compressive test module 5; the test platform fixing foot 16 is connected to the X-axis truss 9, and the test platform fixing foot 16 can be connected to the ground, etc.

[0017] Furthermore, the tension / compression sensor connecting foot 24 is threaded to the fixing object 23 and locked by the locking nut 25; the tension / compression sensor connecting foot 29 is threaded to the fixing object 28 and locked by the locking nut 27.

[0018] Usage and working principle: When using it, it mainly has the following functions.

[0019] When the motor 18 drives the propeller 13 under test to rotate, the propeller 13 under test generates lift. The lift is transmitted to the motor mount 19 through the motor 18, and then to the test platform 20 through the motor mount 19. The test platform decomposes the lift into components in the X, Y and Z directions through the four test platform legs 17, and outputs the tensile and compressive forces in the Z direction through the Z-direction tensile and compressive force test module 22.

[0020] After the force is decomposed into components in the X, Y, and Z directions, the X and Y components are transmitted to the main platform 21 through the test platform legs. The main platform 21 can slide on the Y-axis 7 to transmit the Y-force to the Y-direction tensile and compressive force test module 10 and complete the measurement of the Y-direction tensile and compressive force.

[0021] The main platform 21 transmits the force in the X direction to the Y-axis optical axis 7, which in turn transmits the force to the X-axis inner truss 11. The X-axis inner truss 11 can slide on the X-axis optical axis 2 via the X-axis bearing seat 1, transmitting the force in the X direction to the X-axis tensile and compressive testing module 5 and completing the measurement of the X-axis tensile and compressive forces.

[0022] In summary, this propeller test stand can simultaneously perform tensile and compressive tests in the X, Y, and Z directions, allowing relevant personnel to analyze the characteristics of propellers of various shapes through data, thereby improving the flight efficiency of propellers and UAVs. For ease of explanation in this specification, the longer side of the entire structure is defined as the Y-axis, the shorter side as the X-axis, and the vertically upward direction as the Z-axis, with the origin at the lower left corner of the top view.

Claims

1. A propeller test bench capable of performing three-way tension and pressure testing, characterized in that : including a motor (18), a motor seat (19), a test platform (20), a main platform (21), an X-direction tension and pressure test module (5), a Y-direction tension and pressure test module (10), a Z-direction tension and pressure test module (22), a Y-direction truss (4), a Y-direction inner truss (14), an X-direction truss (9), an X-direction inner truss (11), and a tension and pressure sensor (26); The propeller to be tested is fixed on the motor; the motor is connected to the motor seat; the motor seat is fixed on the test platform; four test platform legs (17) are connected to the test platform; the other end of the test platform legs is connected to the main platform; a Z-direction tension and pressure test module is connected between the test platform and the main platform; four Y-direction linear bearings (6) are embedded in the main platform; a Y-direction optical axis (7) is installed on the Y-direction linear bearing; the Y-direction optical axis passes through the X-direction inner layer truss (11) and is fixed on the outside of the X-direction inner layer truss through the Y-direction locking terminal (8); a Y-direction tension and pressure test module (10) is connected between the X-direction inner layer truss and the main platform; four Y-direction linear bearings (6) are installed on the X-direction inner layer truss and the Y-direction inner layer truss An X-axis bearing seat (1) is provided, each X-axis bearing seat is provided with an X-axis linear bearing, an X-axis optical axis (2) is provided on the X-axis linear bearing, the X-axis optical axis passes through a Y-axis truss and is fixed on the outer side of the Y-axis truss via an X-axis locking terminal; an X-axis tension and pressure test module (5) is connected between the Y-axis truss and the Y-axis inner truss; a test bench fixing foot (16) is connected to the X-axis truss; a tension and pressure sensor connecting foot is connected to a fixing object 1 via a thread and is locked via a locking nut 1; a tension and pressure sensor connecting foot 2 is connected to a fixing object 2 via a thread and is locked via a locking nut 2; and a motor seat is fixed to a test platform (20) via a motor seat fixing screw (12).

2. A propeller test bench capable of performing three-way tension and compression testing according to claim 1, characterized in that :The test bench fixing feet can be connected to the ground, test bench and ground piles.

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