Unmanned aerial vehicle motor tension test platform
The UAV motor tension test platform designed with a criss-cross base and triangular supports solves the vibration problems and safety hazards during high-speed testing, achieves high-precision measurement and all-round protection, and adapts to diverse experimental requirements.
Patent Information
- Application Number
- CN202511312305.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-15
- Publication Date
- 2025-10-28
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing drone motor tensile testing platforms are prone to resonance during high-speed testing, resulting in large measurement errors. Furthermore, their protective structure design is insufficient, failing to fully cover the three-dimensional working area of the motor assembly and propeller, thus posing safety hazards.
The crisscross base is designed with triangular supports at specific angles to enhance the platform's rigidity and anti-resonance capabilities. It is equipped with a high-strength protective cover and an engagement mechanism between the adjustable tooth plate and the fixed tooth plate to ensure measurement accuracy and safety.
It significantly improves measurement accuracy and test result accuracy, provides all-round safety protection, adapts to test requirements of different specifications, and improves operation convenience and equipment durability.
Smart Images
Figure CN120840887A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of drone testing technology, and more specifically, to a drone motor tensile testing platform. Background Technology
[0002] In the critical stages of UAV research and development and performance testing, motor tensile testing serves as a crucial technical means to evaluate the performance of the UAV's power system. The accuracy of the test results and the level of safety control throughout the testing process directly determine the overall flight quality of the UAV. Motor tensile force is not only a key parameter for measuring the output capability of the UAV's propulsion system but also a fundamental performance indicator that ensures stable flight under various operating conditions. During testing, any deviation in accuracy or safety oversight can lead to distorted test data, or even equipment damage or personal injury, severely impacting the UAV's flight reliability and mission execution capabilities. Therefore, motor tensile testing must be given high priority at every stage of UAV development to ensure the accuracy of test data and the safety of the testing process.
[0003] In existing technologies, most common testing platforms employ welded or simple assembly structures. The single-column frame design is prone to resonance during high-speed testing, leading to measurement errors. Furthermore, most testing platforms use single-sided baffles or simple fences for protection, only partially shielding the motor or propeller and failing to fully cover the three-dimensional working area of the motor assembly and propeller, resulting in inadequate safety protection design. Therefore, inventing a drone motor tensile testing platform to address these issues has become a pressing problem for those skilled in the art. Summary of the Invention
[0004] To overcome the above shortcomings, this invention provides a drone motor tensile testing platform, which aims to solve the problems that most common testing platforms adopt welding or simple assembly structures, and the single-column frame design is prone to resonance during high-speed testing, which leads to measurement errors. At the same time, the protective structure of most testing platforms is a single-sided baffle or simple fence, which can only partially shield the motor or propeller and cannot fully cover the three-dimensional working area of the motor assembly and propeller, resulting in deficiencies in safety protection design.
[0005] This invention is implemented as follows: This invention provides a tensile testing platform for a drone motor, including a base, an upper platform and a protective cover mounted on the base. The surface of the upper platform has perforations. A fixing frame and a speed controller are mounted on the upper platform. A connector is mounted on one side wall of the fixing frame. A motor assembly is mounted on one side of the connector. A tensile sensor is mounted between the connector and the base. A middle platform is provided on the inner wall of the base. A control box is mounted on the middle platform. The protective cover is installed on the side of the base near the motor assembly. A fixing frame is installed at the lower end of the protective cover, and an adjusting toothed plate is installed at the lower end of the fixing frame. A fixing toothed plate is installed at one end of the adjusting toothed plate.
[0006] Preferably, the base is constructed from multiple high-strength aluminum alloy profiles and then fixed with bolts. The fixing frame is an "L"-shaped split structure. The bending parts of the fixing frame are connected by hinges. The fixing frame is connected and fixed to the upper platform with bolts. The fixing frame and the connecting parts are fixed with bolts. The connecting parts and the motor assembly are fixed with bolts.
[0007] Preferably, the speed controller and the motor assembly are electrically connected, the output shaft of the motor assembly is equipped with a propeller, and both ends of the tension sensor are fixedly connected with screws. One of the screws is threadedly connected to the inner wall of the connector, and one end of the other screw passes through the base and is fixed by a nut threadedly connected to it.
[0008] By adopting the above technical solution, the overall rigidity and anti-resonance capability of the platform are significantly enhanced by the combination of a grid-shaped base and triangular support components at a specific angle during operation. This effectively solves the vibration problem during high-speed testing and improves measurement accuracy. At the same time, the force sensor and the motor assembly axis are collinear, and with the help of nut limiting, the force transmission is lossless and the data error is small, ensuring the accuracy and reliability of the test results. In addition, the motor assembly can be precisely controlled by the speed controller, which can simulate the tensile test requirements under different working conditions, thereby meeting diverse experimental requirements.
[0009] Preferably, the lower end of the protective cover is fixedly connected to the upper end of the fixing frame, a symmetrical groove is provided on one outer wall of the fixing frame, a spring is installed on the inner wall of the groove, a gear shaft is rotatably connected between the two inner walls of the fixing frame, a hydraulic rod is installed on one outer wall of the fixing frame, and the lower end of the hydraulic rod is fixed to the aluminum alloy on the base.
[0010] Preferably, two symmetrical ear plates are fixedly connected to the outer wall of the adjusting tooth plate near the groove. A limit rod is fixedly connected to one end of the ear plate. The outer wall of the limit rod is slidably connected to the inner wall of the groove. The two side walls of the spring are fixedly connected to one side of the groove and the ear plate, respectively.
[0011] Preferably, the adjusting toothed plate and the gear shaft are meshed together, one end of the adjusting toothed plate is fixedly connected to two slide rods that are slidably connected to the inner wall of the fixed toothed plate, the lower end of the fixed toothed plate is fixedly connected to the aluminum alloy in the base, and the fixed toothed plate and the adjusting toothed plate are meshed together.
[0012] By adopting the above technical solution, the protective cover of this equipment is made of high-strength materials. Its specially designed structure not only effectively prevents the splashing of fragments or foreign objects generated during testing, providing comprehensive safety protection for operators, but also achieves rapid and precise spacing adjustment and a firm and reliable fixing effect through a carefully designed meshing mechanism between the adjusting and fixed toothed plates. This innovative meshing design greatly enhances the applicability of the equipment, enabling it to adapt to different testing requirements, while also significantly improving the ease of operation. The entire device adopts a modular design concept, with a compact and reasonable structure. The various functional components are connected by standardized bolts. This design facilitates daily disassembly and maintenance while ensuring the equipment maintains excellent durability during long-term use. In addition, this connection method enhances the overall structural stability of the equipment, enabling it to maintain reliable operation under various working conditions.
[0013] The beneficial effects of this invention are: During operation, the design of the grid-shaped base combined with triangular support components at a specific angle significantly enhances the overall rigidity and anti-resonance capability of the platform, effectively solving the vibration problem during high-speed testing and improving measurement accuracy. At the same time, the force sensor and the motor assembly axis are collinear, and with the help of nut limiters, the force transmission is lossless and the data error is small, ensuring the accuracy and reliability of the test results. In addition, the motor assembly can be precisely controlled by the speed controller, which can simulate the tensile test requirements under different working conditions, thereby meeting diverse experimental requirements. The protective cover not only effectively prevents debris or foreign objects from flying during testing, ensuring operator safety, but also allows for quick adjustment and stable fixation through the meshing design of the adjusting and fixed toothed plates, further enhancing the equipment's applicability and convenience. The entire device has a compact structure, with all components connected by bolts, facilitating disassembly and maintenance while also enhancing overall durability and stability. Attached Figure Description
[0014] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of a drone motor tensile testing platform structure provided by an embodiment of the present invention; Figure 2 This is a schematic diagram of another perspective of the structure of a drone motor tensile testing platform provided by an embodiment of the present invention; Figure 3This invention provides a drone motor tensile testing platform. Figure 2 Enlarged view of the structure of region A in the middle; Figure 4 This is a partial structural diagram of a drone motor tensile testing platform provided in an embodiment of the present invention; Figure 5 This is a partial cross-sectional view of a drone motor tensile testing platform provided in an embodiment of the present invention.
[0016] In the diagram: 1. Base; 2. Upper platform; 21. Perforation; 22. Middle platform; 23. Control box; 24. Speed controller; 3. Fixing frame; 31. Connecting piece; 4. Motor assembly; 41. Propeller; 5. Tension sensor; 51. Screw; 52. Nut; 6. Protective cover; 61. Fixing frame; 62. Groove; 63. Spring; 64. Gear shaft; 7. Adjusting gear plate; 71. Slide rod; 72. Ear plate; 73. Limiting rod; 8. Fixing gear plate; 9. Hydraulic rod. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0018] Example, refer to Figures 1-5 A tensile testing platform for a drone motor includes a base 1, an upper platform 2 and a protective cover 6 mounted on the base 1. The surface of the upper platform 2 has a perforation 21. A fixing frame 3 and a speed controller 24 are mounted on the upper platform 2. A connector 31 is mounted on one side wall of the fixing frame 3. A motor assembly 4 is mounted on one side of the connector 31. A tensile sensor 5 is mounted between the connector 31 and the base 1. A middle platform 22 is provided on the inner wall of the base 1. A control box 23 is mounted on the middle platform 22. The protective cover 6 is installed on the side of the base 1 near the motor assembly 4. A fixing frame 61 is installed at the lower end of the protective cover 6. An adjusting toothed plate 7 is installed at the lower end of the fixing frame 61. A fixing toothed plate 8 is installed at one end of the adjusting toothed plate 7.
[0019] Furthermore, the base 1 is constructed from multiple high-strength aluminum alloy profiles and then fixed with bolts. The fixing frame 3 is an "L"-shaped split structure. The bending part of the fixing frame 3 is connected by a hinge. The fixing frame 3 is connected and fixed to the upper platform 2 by bolts. The fixing frame 3 and the connecting piece 31 are fixed with bolts. The connecting piece 31 and the motor assembly 4 are fixed with bolts. The speed controller 24 is electrically connected to the motor assembly 4. The output shaft of the motor assembly 4 is equipped with a propeller 41. The two ends of the tension sensor 5 are fixedly connected with screws 51. One screw 51 is threaded to the inner wall of the connecting piece 31, and one end of the other screw 51 passes through the base 1 and is fixed by a nut 52 threaded to it.
[0020] It should be noted that: Base 1 is constructed using high-strength aluminum alloy profiles. Two horizontal aluminum alloy profiles and four vertical aluminum alloy profiles are orthogonally connected by bolts and angle brackets. Thread locking agent is applied to the connection surfaces to prevent loosening. Adjustable height pads are installed at the bottom of both ends of the four vertical aluminum alloy profiles. At the four orthogonal points in the middle of Base 1, four columns are vertically fixed by bolts. The columns are fixed to a double-layer support platform by bolts. The upper platform 2 is made of aluminum alloy plate with edges fixed to the top of the columns by angle brackets. A through hole 21 is provided in the middle for cables to pass through. The edges of the through hole 21 are rounded to avoid scratching the cables. The middle platform 2... 2. A rectangular load-bearing frame is welded to the side away from the motor assembly 4 to fix the control box 23. An empty area is reserved on the side close to the motor assembly 4 for installing the tension sensor 5. The triangular support is divided into a motor side diagonal brace group and a non-motor side diagonal brace group. Each group contains two diagonal braces of the same length. The upper end of the diagonal brace of the motor side diagonal brace group is connected to the two side columns through a reinforced angle bracket. After the lower end converges, it is fixed to the second longitudinal beam from the motor installation end in the base 1 through an angle bracket. The two diagonal braces on the non-motor side are respectively connected to the two side columns and the last longitudinal beam in the base 1 away from the motor installation end to enhance the platform's anti-tilt capability and stability. The fixing frame 3 is an L-shaped split structure, with the bends connected by hinges. The bottom of the vertical section has a pre-set mounting hole that matches the connector 31, and the two are rigidly fixed by bolts. One end of the horizontal section is hinged to the top of the vertical section, and the other end extends to the through hole 21 in the middle of the upper platform 2. The motor assembly 4 is bolted to the connector 31. One end of the tension sensor 5 is bolted to the pre-set hole of the connector 31, and the other end extends horizontally and is fixed to the aluminum profile tube on the left side of the middle platform. Its measuring axis is horizontally collinear with the rotation axis of the motor assembly 4. The nut 52 is screwed into the external threaded section of the tension sensor 5 near the tail of the aluminum profile tube to form an axial limit to prevent excessive displacement under force.
[0021] The motor assembly 4 is fixed to the front side of the test platform axis via connector 31. The control box 23 is fixed on the rectangular support frame of the middle platform 22. The box adopts a layered design, with the terminal display screen fixed on the upper layer and the power supply module fixed on the lower layer. An aluminum shielding partition is installed between the two layers to reduce electromagnetic interference. The motor power cable is guided by the fixing frame 3 and passes through the through hole 21 on the upper platform 2 to connect to the power supply module. During operation, the design of the grid-shaped base 1 combined with the triangular support component at a specific angle significantly enhances the overall rigidity and anti-resonance capability of the platform, effectively solving the vibration problem during high-speed testing and improving measurement accuracy. At the same time, the tension sensor 5 and the motor assembly 4 are collinear, and with the nut 52 for limiting, the force transmission is lossless and the data error is small.
[0022] Furthermore, the lower end of the protective cover 6 is fixedly connected to the upper end of the fixed frame 61. A symmetrical groove 62 is provided on one side of the outer wall of the fixed frame 61. A spring 63 is installed on the inner wall of the groove 62. A gear shaft 64 is rotatably connected between the two inner walls of the fixed frame 61. A hydraulic rod 9 is installed on one side of the outer wall of the fixed frame 61. The lower end of the hydraulic rod 9 is fixed to the aluminum alloy on the base 1. Two symmetrical ear plates 72 are fixedly connected to the outer wall of the adjusting tooth plate 7 near the groove 62. A limit rod 73 is fixedly connected to one end of the ear plate 72. The outer wall of the limit rod 73 is slidably connected to the inner wall of the groove 62. The two side walls of the spring 63 are fixedly connected to the groove 62 and the ear plate 72 respectively. The adjusting tooth plate 7 and the gear shaft 64 are meshed. Two slide rods 71 are fixedly connected to one end of the adjusting tooth plate 7 and are slidably connected to the inner wall of the fixed tooth plate 8. The lower end of the fixed tooth plate 8 is fixedly connected to the aluminum alloy in the base 1. The fixed tooth plate 8 and the adjusting tooth plate 7 are meshed.
[0023] It should be noted that the protective cover 6 is installed on the outer periphery of the propeller 41 on the motor assembly 4. It is made of high-strength material and can completely wrap the entire working three-dimensional space of the motor assembly 4 and the propeller 41 without any blind spots. This fully enclosed protective structure design can effectively block the flying debris that may be generated by the high-speed rotating propeller 41 during the test, and at the same time prevent foreign objects from entering the working area, which has extremely high safety protection performance and reliability.
[0024] When it is necessary to disassemble and replace the motor assembly 4 and propeller 41, the operator first activates the hydraulic rod 9. The hydraulic rod 9 then smoothly pushes the protective cover 6 horizontally away from the motor assembly 4. During this process, the fixing frame 61 at the lower end of the protective cover 6 also moves synchronously. Because the spring 63 elastically connects and fixes the various components, the adjusting toothed plate 7 at the lower end maintains synchronous displacement under the drive of the fixing frame 61, ensuring the smooth and orderly movement of the entire process. When the front end of the adjusting toothed plate 7 is in complete contact with the end of the fixing toothed plate 8, the protective function of the protective cover 6 on the motor assembly 4 and propeller 41 is released.
[0025] Subsequently, the hydraulic rod 9 continues to apply thrust, pushing the protective cover 6 to move in the second stage. In this stage, the position of the adjusting toothed plate 7 remains fixed and no longer moves, while the upper fixed frame 61 begins to drive the spring 63 in the groove 62 to continue to extend and move. During the movement, the gear shaft 64 designed inside the fixed frame 61 meshes with the gear teeth of the adjusting toothed plate 7 and the fixed toothed plate 8, and drives the gear shaft 64 to rotate smoothly. The rotation of the gear shaft 64 drives the upper protective cover 6 to rotate through the transmission mechanism, causing the protective cover 6 to gradually flip downward. When the protective cover 6 has completely rotated to the bottom and is in a horizontal and parallel state with the ground, the entire flipping process is completed. At this time, the motor assembly 4 and the propeller 41 are completely exposed to the operator, providing ample operating space for subsequent disassembly and replacement work, greatly simplifying the operation process, significantly saving maintenance time and costs, and effectively improving the overall testing efficiency.
[0026] It should be noted that the specific model and specifications of the motor need to be selected and determined based on the actual specifications of the device. The specific selection and calculation method adopts the existing technology in this field, so it will not be described in detail here.
[0027] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the invention by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the scope of protection of the invention.
Claims
1. A tensile testing platform for a drone motor, comprising a base (1), an upper platform (2) disposed on the base (1), and a protective cover (6), characterized in that, The surface of the upper platform (2) is provided with a perforation (21). A fixing frame (3) and a speed controller (24) are installed on the upper platform (2). A connector (31) is installed on one side wall of the fixing frame (3). A motor assembly (4) is installed on one side of the connector (31). A tension sensor (5) is installed between the connector (31) and the base (1). A middle platform (22) is provided on the inner wall of the base (1). A control box (23) is installed on the middle platform (22). The protective cover (6) is installed on the side of the base (1) near the motor assembly (4). A fixed frame (61) is installed at the lower end of the protective cover (6). An adjusting toothed plate (7) is installed at the lower end of the fixed frame (61). A fixed toothed plate (8) is installed at one end of the adjusting toothed plate (7).
2. The UAV motor tensile testing platform according to claim 1, characterized in that, The base (1) is constructed by bolting multiple high-strength aluminum alloy profiles. The fixing frame (3) is an "L"-shaped split structure. The bending part of the fixing frame (3) is connected by a hinge. The fixing frame (3) is connected and fixed to the upper platform (2) by bolts. The fixing frame (3) and the connecting piece (31) are fixed by bolts. The connecting piece (31) and the motor assembly (4) are fixed by bolts.
3. The UAV motor tensile testing platform according to claim 2, characterized in that, The speed controller (24) is electrically connected to the motor assembly (4). The output shaft of the motor assembly (4) is equipped with a propeller (41). The two ends of the tension sensor (5) are fixedly connected with screws (51). One of the screws (51) is threaded to the inner wall of the connector (31), and one end of the other screw (51) passes through the base (1) and is fixed by a nut (52) threaded to it.
4. The UAV motor tensile testing platform according to claim 1, characterized in that, The lower end of the protective cover (6) is fixedly connected to the upper end of the fixed frame (61). A symmetrical groove (62) is provided on one side of the outer wall of the fixed frame (61). A spring (63) is installed on the inner wall of the groove (62). A gear shaft (64) is rotatably connected between the inner walls of the two sides of the fixed frame (61). A hydraulic rod (9) is installed on one side of the outer wall of the fixed frame (61). The lower end of the hydraulic rod (9) is fixed on the aluminum alloy on the base (1).
5. The UAV motor tensile testing platform according to claim 4, characterized in that, Two symmetrical ear plates (72) are fixedly connected to the outer wall of the adjusting tooth plate (7) near the groove (62). One end of the ear plate (72) is fixedly connected to a limiting rod (73). The outer wall of the limiting rod (73) is slidably connected to the inner wall of the groove (62). The two side walls of the spring (63) are fixedly connected to the groove (62) and one side of the ear plate (72) respectively.
6. The UAV motor tensile testing platform according to claim 5, characterized in that, The adjusting toothed plate (7) and the gear shaft (64) are meshed together. One end of the adjusting toothed plate (7) is fixedly connected to two slide rods (71) that are slidably connected to the inner wall of the fixed toothed plate (8). The lower end of the fixed toothed plate (8) is fixedly connected to the aluminum alloy in the base (1). The fixed toothed plate (8) and the adjusting toothed plate (7) are meshed together.