Modular robotic arm structure and vertical take-off and landing drone comprising same
By designing a modular arm structure and reinforcing components, the problem of fracture at the connection between the UAV arm and the main wing was solved, thereby improving structural stability and safety during vertical takeoff and landing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- AUTOFLIGHT (KUNSHAN) CO LTD
- Filing Date
- 2024-12-02
- Publication Date
- 2026-06-02
AI Technical Summary
Existing drones lack reinforcement measures at the connection between the arms and the main wing, making the connection prone to breakage and posing a safety hazard.
The modular arm structure is adopted, with the wings protruding on both sides to form a transition section and coupled to the arm through the first reinforcing member. The arm has a accommodating area and reinforcing members inside, and the wings are fixed with bolts to withstand tensile and compressive stresses.
It effectively prevents breakage at the connection between the wing and the arm, improving the structural stability and safety of the UAV during vertical take-off and landing.
Smart Images
Figure CN122126498A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of aircraft, and more specifically, to a modular arm structure and a vertical take-off and landing unmanned aerial vehicle (UAV) incorporating the same. Background Technology
[0002] When a drone takes off and lands vertically, the wings and main wing are not integrally formed and need to be connected by fasteners. Therefore, the connection between the arm and the main wing needs to withstand significant stress. Currently, existing drones lack appropriate reinforcement measures at the connection between the arm and the main wing; if a break occurs, it will have catastrophic consequences. Summary of the Invention
[0003] The purpose of this invention is to provide a modular arm structure and a drone containing the same, which can achieve the purpose of bearing high stress at the connection between the arm and the wing.
[0004] To achieve this objective, the present invention adopts the following technical solution:
[0005] This invention provides a modular robotic arm structure, comprising:
[0006] machine arm;
[0007] The wing has transition sections protruding from both sides in the width direction, and the top of the transition section protrudes to form a first reinforcing member;
[0008] The wing is coupled to the arm via a first reinforcing member;
[0009] The first reinforcing member is symmetrically arranged on both sides perpendicular to the long axis of the wing;
[0010] The first reinforcement is configured to bear compressive stress from both sides inward or tensile stress from the inside out when the UAV takes off or lands.
[0011] Preferably, the arm is concave from both ends toward the middle, forming a receiving area for coupling the wing placed in the receiving area.
[0012] Preferably, the accommodating area divides the arm into three regions:
[0013] A first region from the head of the arm to the first end of the receiving area;
[0014] The second region from the first end of the accommodating area to the second end of the accommodating area;
[0015] The third region from the second end of the accommodating area to the tail of the arm;
[0016] The second area is the accommodating area.
[0017] Preferably, the accommodating area is an inverted isosceles trapezoid in the length direction of the arm, and a second reinforcing member adapted to the first reinforcing member is provided at the connection between the accommodating area and the first and second areas.
[0018] Preferably, the cross-section of the first reinforcing member is formed by three straight lines and a curve, and the cross-section gradually converges from the straight line connecting opposite ends of the curve to the two straight lines at both ends of the curve.
[0019] Preferably, the first reinforcing member has eight first threaded holes, and bolts are used to couple the wing to the arm through the first threaded holes.
[0020] Preferably, a first recess that matches the shape of the first reinforcing member is provided at the junction of the first region and the second region.
[0021] At the junction of the second region and the third region, there is a second recess that is adapted to the shape of the first reinforcing member; the first reinforcing member is respectively covered by the second reinforcing member on the first recess and the second reinforcing member on the second recess in the form of a cover.
[0022] Preferably, the cross-sectional dimension of the second reinforcing member is smaller than that of the first recess and the second recess, and is respectively fitted onto the first recess and the second recess.
[0023] Preferably, the single bearing capacity of each bolt is in the range of 1.8 tons to 2.2 tons.
[0024] The present invention also provides a vertical take-off and landing unmanned aerial vehicle (UAV), wherein the wings of the UAV are connected to the modular arm structure described in the above-described scheme.
[0025] The beneficial effects of this invention are as follows: During vertical ascent, the connection between the main wing and the arm of the UAV is subjected to pressure from the outside in, while during vertical descent, it is subjected to tension from the inside out. This invention incorporates a reinforcing member at the connection between the main wing and the arm, securing the main wing to the arm with eight bolts, simultaneously bearing tensile and compressive stresses and preventing breakage at the connection. Attached Figure Description
[0026] Figure 1 This is an overall schematic diagram of the UAV of the present invention;
[0027] Figure 2 This is a schematic diagram of the reinforcing member and reinforcing part of the present invention. Detailed Implementation
[0028] The following embodiments further illustrate the technical solutions of this application. It should be understood that the specific embodiments described herein are merely for explaining this application. Furthermore, it should be noted that, for ease of description, only the parts relevant to this application are shown in the accompanying drawings, not all of them.
[0029] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0030] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0031] This application provides a modular arm structure, including an arm 100, a wing 200, and a reinforcing member 300. The wing 200 protrudes from both sides in the width direction to form transition portions, and the top of the transition portions protrudes to form a first reinforcing member 300. The wing 200 is coupled to the arm 100 through the first reinforcing member 300. The reinforcing member 300 is symmetrically arranged on both sides perpendicular to the long axis of the wing 200. The reinforcing member 300 is configured to bear compressive stress from both sides inward or tensile stress from the inside out when the UAV takes off or lands.
[0032] Furthermore, in this application, the arm 100 has a structure that gradually concaves from both ends to the middle, forming a receiving area for coupling the wing 200 placed in the receiving area.
[0033] It is worth noting that the accommodating area in this application divides the robotic arm 100 into three regions:
[0034] From the head of the machine arm 100 to the first area at the first end of the receiving area;
[0035] The second area from the first end of the containment area to the second end of the containment area;
[0036] The third area from the second end of the accommodating area to the tail of the arm 100;
[0037] The second area is a containment area used to couple the wing 200 of the UAV.
[0038] Furthermore, the accommodating area is in the shape of an inverted isosceles trapezoid along the length of the arm 100. At the junction of the accommodating area with the first and second areas, a second reinforcing member 400 adapted to the first reinforcing member 300 is provided. The first reinforcing member 300 and the second reinforcing member 400 are connected to each other by screws.
[0039] Preferably, the cross-section of the first reinforcing member 300 is formed by three straight lines and a curve, and the cross-section gradually converges from the straight line connecting the opposite ends of the curve to the two straight lines at both ends of the curve.
[0040] It is understandable that the cross-sectional dimension of the second reinforcing member 400 is smaller than that of the first and second recesses, and is respectively fitted onto the first and second recesses. The width of the second reinforcing member 400 is smaller than the diameter of the arm, thereby reducing aerodynamic drag.
[0041] Furthermore, the first reinforcing member 300 in this application has eight first threaded holes, and the second reinforcing member 400 also has eight second threaded holes. Bolts couple the wing 200 to the arm 100 through the eight first threaded holes and the eight second threaded holes. Preferably, the single load-bearing capacity of each bolt ranges from 1.8 tons to 2.2 tons.
[0042] For example, a first recess adapted to the shape of the first reinforcing member 300 is provided at the junction of the first region and the second region; similarly, a second recess adapted to the shape of the first reinforcing member 300 is provided at the junction of the second region and the third region; the first reinforcing member 300 is respectively covered by the second reinforcing part 400 on the first recess and the second reinforcing part 400 on the second recess in the form of a cover.
[0043] Preferably, the cross-sectional dimension of the second reinforcing part 400 is smaller than the cross-sectional dimensions of the first recess and the second recess, and is respectively fitted onto the first recess and the second recess.
[0044] During vertical ascent, the connection between the main wing and the arm of a drone experiences inward pressure, while during vertical descent, it experiences outward tension. This invention incorporates a reinforcing member at the connection between the main wing and the arm, securing the main wing to the arm with eight bolts. This reinforcement simultaneously withstands tensile and compressive stresses, preventing breakage at the connection point.
[0045] This application also provides a vertical take-off and landing unmanned aerial vehicle (UAV) whose wings are connected to the modular arm structure described in the above-described scheme.
[0046] The above embodiments are merely illustrative of the principles and effects of this application. Any person skilled in the art can modify or alter the above embodiments without departing from the purpose of this application. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the purpose disclosed in this application should still be covered by the claims of this application.
Claims
1. A modular robotic arm structure, characterized in that, include: machine arm; The wing has transition sections protruding from both sides in the width direction, and the top of the transition section protrudes to form a first reinforcing member; The wing is coupled to the arm via a first reinforcing member; The first reinforcing member is symmetrically arranged on both sides perpendicular to the long axis of the wing; The first reinforcement is configured to bear compressive stress from both sides inward or tensile stress from the inside out when the UAV takes off or lands.
2. The modular arm structure according to claim 1, characterized in that, The arm is concave from both ends toward the middle, forming a receiving area for coupling the wing placed in the receiving area.
3. The modular arm structure according to claim 2, characterized in that, The accommodating area divides the robotic arm into three regions: A first region from the head of the arm to the first end of the receiving area; The second region from the first end of the accommodating area to the second end of the accommodating area; The third region from the second end of the accommodating area to the tail of the arm; The second area is the accommodating area.
4. The modular arm structure according to claim 3, characterized in that, The accommodating area is in the shape of an inverted isosceles trapezoid along the length of the arm, and a second reinforcing member adapted to the first reinforcing member is provided at the connection between the accommodating area and the first and second areas, respectively.
5. The modular arm structure according to claim 1, characterized in that, The cross-section of the first reinforcing member is formed by three straight lines and a curve, and the curve gradually converges from the straight line connecting opposite ends of the curve to the two straight lines at both ends of the curve.
6. The modular arm structure according to claim 5, characterized in that, The first reinforcing member has eight first threaded holes, and bolts are used to couple the wing to the arm through the first threaded holes.
7. The modular arm structure according to claim 4, characterized in that, A first recess, adapted to the shape of the first reinforcing member, is provided at the junction of the first region and the second region; At the junction of the second region and the third region, there is a second recess that is adapted to the shape of the first reinforcing member; the first reinforcing member is respectively covered by the second reinforcing member on the first recess and the second reinforcing member on the second recess in the form of a cover.
8. The modular arm structure according to claim 7, characterized in that, The cross-sectional dimension of the second reinforcing member is smaller than that of the first recess and the second recess, and it is respectively attached to the first recess and the second recess.
9. The modular arm structure according to claim 6, characterized in that, Each of the bolts has a single bearing capacity ranging from 1.8 tons to 2.2 tons.
10. A vertical takeoff and landing unmanned aerial vehicle (UAV), characterized in that, The wings of the UAV are connected to the modular arm structure as described in claims 1-9.