Paddle locking structure, power assembly and unmanned aerial vehicle
Through the combined structure of hexagon screws, spring gaskets and paddle pads, the problems of inconvenience and low reliability of the traditional paddle structure are solved, and the stable installation and efficient fixation of the propeller are achieved, reducing costs and reducing wind resistance.
Patent Information
- Application Number
- CN202421463550.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-25
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-06-25
AI Technical Summary
The traditional paddle lock structure has a long motor shaft part, high processing cost, and increases the weight of the motor, resulting in inconvenient installation and fixation and low reliability.
The combined structure of hexagon screws, spring gaskets and lock pads is adopted to fix the propeller to the motor shaft, and the fixed connection between the hexagon screws and the motor shaft is used to prevent loosening, so as to achieve a stable installation of the propeller.
It realizes convenient installation and high reliability fixation of propellers, reduces costs, and reduces wind resistance coefficient during power system operation, improving overall performance.
Smart Images
Figure CN222522881U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the field of mechanical technology, and in particular relates to a propeller locking structure, a power assembly and an unmanned aerial vehicle. Background Art
[0002] The traditional propeller locking structure uses a protruding motor shaft and a nut to fix the propeller blades. The motor shaft is relatively long, the processing cost is high, and the weight of the motor is increased. Utility Model Content
[0003] The present application provides a propeller locking structure, a power assembly and a UAV to solve the above technical problems.
[0004] In order to achieve the above application purpose, the technical solution adopted in this application is as follows:
[0005] The embodiment of the present application provides a propeller locking structure for fixing a propeller to a motor shaft, the propeller locking structure comprising a hexagon socket screw, a spring washer and a propeller locking washer, the propeller locking washer is provided with a first mounting hole, the hole wall of the first mounting hole is provided with a step, the step is used to place the spring washer, the bottom of the propeller locking washer is further provided with a lower boss, the lower boss is used to be embedded in the second mounting hole of the propeller from top to bottom, and the motor shaft is used to be embedded in the second mounting hole from bottom to top;
[0006] The hexagon socket screw is used to pass through the spring washer and the first mounting hole, and is fixedly connected to the motor shaft in the second mounting hole.
[0007] In some embodiments, the lower boss and the second mounting hole are connected by interference fit, and / or the motor shaft and the second mounting hole are connected by interference fit.
[0008] In some embodiments, one end of the hexagon socket screw is provided with an external thread, the axial hole of the motor shaft is provided with an internal thread, and the hexagon socket screw is fixedly connected to the internal thread via the external thread.
[0009] In some embodiments, the other end of the hexagon socket screw is a screw head, which abuts against the spring washer and is hidden in the first mounting hole.
[0010] In some embodiments, the screw head is a cylindrical head.
[0011] An embodiment of the present application also provides a power assembly, including a motor, a propeller, and a propeller locking structure provided in any of the above embodiments.
[0012] An embodiment of the present application also provides a drone, including a fuselage and an arm, wherein the arm is connected to the fuselage, and the power assembly provided in the above embodiment is installed on the arm.
[0013] Compared with the prior art, the beneficial effects of the embodiments of the present application are:
[0014] The embodiments of the present application provide a propeller lock structure, a power assembly, and a drone, which can realize the installation and fixation of the propeller using a propeller lock structure, specifically, using a hexagon socket screw and a spring washer assembled on the propeller lock washer and connected to the motor shaft to fix the propeller. The propeller lock structure has the advantages of anti-loosening, convenient installation, high reliability, beautiful appearance, reducing the wind resistance coefficient during the operation of the power system, and low cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0016] Figure 1 A schematic structural diagram of a propeller lock assembly provided in an embodiment of the present application is shown;
[0017] Figure 2 An exploded view of a propeller lock assembly provided in an embodiment of the present application is shown;
[0018] Figure 3 A cross-sectional view of a propeller lock assembly provided in an embodiment of the present application is shown;
[0019] Figure 4 A schematic diagram of propeller installation provided in an embodiment of the present application is shown;
[0020] Figure 5 Shows Figure 4 Exploded diagram of
[0021] Figure 6 Shows Figure 4 A cross-sectional view of the middle part;
[0022] Figure 7 A schematic diagram of the structure of a motor provided in an embodiment of the present application is shown;
[0023] Figure 8 A top view of the motor provided in an embodiment of the present application is shown.
[0024] Illustration Description:
[0025] 10. Propeller locking structure; 11. Hexagon socket screw; 111. Screw head; 12. Spring washer; 13. Propeller locking washer; 131. Lower boss; 132. First mounting hole; 133. Step; 20. Propeller; 21. Second mounting hole; 30. Motor; 31. Motor shaft; 311. Shaft hole; 32. Anti-slip teeth. DETAILED DESCRIPTION
[0026] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.
[0027] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0029] In order to illustrate the technical solution described in this application, a specific embodiment is provided below for illustration.
[0030] See also Figures 1 to 8 As shown, the embodiment of the present application provides a propeller locking structure 10 for fixing the propeller 20 to the motor shaft 31. Optionally, the motor 30 may be an FPV (First Person View) drone racing motor.
[0031] In some embodiments of the present application, the propeller locking structure 10 includes a hexagon socket screw 11, a spring washer 12, and a propeller locking washer 13. The propeller locking washer 13 is provided with a first mounting hole 132. The hole wall of the first mounting hole 132 is provided with a step 133. The step 133 is used to place the spring washer 12. The bottom of the propeller locking washer 13 is also provided with a lower boss 131. The lower boss 131 is used to be embedded in the second mounting hole 21 of the propeller 20 from top to bottom, and the motor shaft 31 is used to be embedded in the second mounting hole 21 from bottom to top. The hexagon socket screw 11 is used to pass through the spring washer 12 and the first mounting hole 132, and is fixedly connected to the motor shaft 31 in the second mounting hole 21.
[0032] The above-mentioned propeller locking structure 10 can play an anti-loosening role through the spring gasket 12, and the hexagon socket screw 11 is fixedly connected to the motor shaft 31 in the second mounting hole 21, which has higher reliability, lower cost and convenient installation.
[0033] In some embodiments of the present application, the lower boss 131 is connected by interference fit with the second mounting hole 21, and / or the motor shaft 31 is connected by interference fit with the second mounting hole 21. Such an arrangement can prevent the propeller 20 from shaking in the radial direction, making the fixing of the propeller 20 more stable and reliable.
[0034] In some embodiments of the present application, one end of the hexagon socket screw 11 is provided with an external thread, the shaft hole 311 of the motor shaft 31 is provided with an internal thread, and the hexagon socket screw 11 is fixedly connected to the internal thread via the external thread.
[0035] In some embodiments of the present application, the other end of the hexagon socket screw 11 is a screw head 111, which abuts against the spring washer 12 and is hidden in the first mounting hole 132. Such a configuration can prevent the hexagon socket screw 11 from being disturbed by external forces in the radial direction due to being arranged outside, so that the fixing of the propeller 20 is more stable and reliable, and saves installation space, is more beautiful, and reduces the wind resistance coefficient during the operation of the power system.
[0036] In some embodiments of the present application, the screw head 111 is a cylindrical head.
[0037] In some embodiments of the present application, a power assembly is further provided, comprising a motor 30, a propeller 20, and a propeller locking structure 10 provided in any of the above embodiments. As an example, the motor 30 is provided with anti-slip teeth 32.
[0038] In some embodiments of the present application, a drone is also provided, including a fuselage and an arm, wherein the arm is connected to the fuselage, and the power assembly provided in the above embodiment is installed on the arm.
[0039] The power assembly and the UAV provided in the above embodiments also have the above beneficial effects.
[0040] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.
Claims
1. A propeller locking structure, used to fix a propeller to a motor shaft, characterized in that: The propeller locking structure comprises a hexagon socket screw, a spring washer and a propeller locking washer, the propeller locking washer is provided with a first mounting hole, the hole wall of the first mounting hole is provided with a step, the step is used to place the spring washer, the bottom of the propeller locking washer is also provided with a lower boss, the lower boss is used to be embedded in the second mounting hole of the propeller from top to bottom, and the motor shaft is used to be embedded in the second mounting hole from bottom to top; The hexagon socket screw is used to pass through the spring washer and the first mounting hole, and is fixedly connected to the motor shaft in the second mounting hole.
2. The propeller locking structure according to claim 1, characterized in that: The lower boss and the second mounting hole are connected by interference fit, and / or the motor shaft and the second mounting hole are connected by interference fit.
3. The propeller locking structure according to claim 1, characterized in that: One end of the hexagon socket screw is provided with an external thread, the shaft hole of the motor shaft is provided with an internal thread, and the hexagon socket screw is fixedly connected to the internal thread through the external thread.
4. The propeller locking structure according to claim 3, characterized in that: The other end of the hexagon socket screw is a screw head, which abuts against the spring washer and is hidden in the first mounting hole.
5. The propeller locking structure according to claim 4, characterized in that: The screw head is a cylindrical head.
6. A power assembly, characterized in that: It comprises a motor, a propeller and a propeller locking structure as described in any one of claims 1 to 5.
7. A drone, characterized in that: It comprises a fuselage and an arm, wherein the arm is connected to the fuselage, and the power assembly according to claim 6 is installed on the arm.