Power arm connecting mechanism of composite wing unmanned aerial vehicle

Abstract

The utility model discloses a power arm connecting mechanism of a composite wing unmanned aerial vehicle. The power arm connecting mechanism comprises a first connecting piece, a second connecting piece and a middle connecting piece. The first connecting piece is fixed on the tail boom; the second connecting piece is connected to the power arm; the first connecting piece is matched with the second connecting piece; the middle connecting piece is axially located on the tail boom through the first connecting piece, and the second connecting piece is in threaded connection with the middle connecting piece. The problem that in the prior art, a connecting mechanism between the power arm and the tail boom is inconvenient to disassemble or has the risk of falling off is solved, and the technical effects that the power arm and the tail boom can be stably connected, and installation and disassembly are convenient are achieved.

Description

Technical Field

[0001] The present application relates to the technical field of unmanned aerial vehicles, and in particular to a power arm connection mechanism for a composite wing unmanned aerial vehicle. Background Art

[0002] The composite wing vertical take-off and landing UAV system combines the advantages of multi-rotor and fixed-wing. It has the ability of multi-rotor vertical take-off and landing, and the advantages of fixed-wing long flight time and long range, and can significantly reduce the risk of accidents during the take-off and landing phase of fixed-wing aircraft. Composite wing UAVs for vertical take-off and landing mostly use a tail support structure to connect the tail support and the power arm. The connection between the tail support structure and the power arm realizes the transmission of force from the tail support to the wing and then to the fuselage. Therefore, this connection is the key point of the structure.

[0003] At present, the commonly used connection method between the power arm and the tail support is a latch or riveting, which is not convenient for quick disassembly and installation. Alternatively, a lock and clamp are used for fastening connection, but this connection method has the risk of falling off. Therefore, there is an urgent need for a mechanism between the power arm and the tail support that is both convenient for installation and disassembly and can be stably connected. Utility Model Content

[0004] The embodiment of the present application provides a composite wing UAV power arm connection mechanism, which solves the problem in the prior art that the connection mechanism between the power arm and the tail support is inconvenient to disassemble or has the risk of falling off, and achieves the technical effect of being able to stably connect the power arm and the tail support and facilitate installation and disassembly.

[0005] An embodiment of the utility model provides a power arm connection mechanism of a composite wing UAV, comprising a first connection member, a second connection member and an intermediate connection member; the first connection member is connected to a tail support; the second connection member is connected to a power arm; the first connection member and the second connection member cooperate with each other; the first connection member and the intermediate connection member are detachably connected, and the second connection member and the intermediate connection member are detachably connected.

[0006] In a possible implementation, a steel ball pin is further included; the steel ball pin passes through the first connecting member and is connected to the second connecting member.

[0007] In a possible implementation, the second connecting member includes a first mounting portion and a second mounting portion; one end of the first mounting portion is connected to the power arm, and the other end of the first mounting portion is connected to the second mounting portion; the first connecting member is arranged on the outside of the second mounting portion and abuts against the first mounting portion.

[0008] In a possible implementation, the intermediate connecting member includes a connecting portion and a clamping portion; the clamping portion is connected to one end of the connecting portion close to the first connecting member; the connecting portion is arranged on the outer side of the first mounting portion; and the clamping portion is clamped with the first connecting member.

[0009] In a possible implementation, the first connecting member includes a third mounting portion and a boss; the end of the third mounting portion close to the second connecting member is connected to the boss; and the boss is clamped to the clamping portion.

[0010] In a possible implementation, a first mounting plane is disposed inside the first connecting member; a second mounting plane is disposed outside the second mounting portion; and the first mounting plane cooperates with the second mounting plane.

[0011] In a possible implementation, a third mounting plane is provided on the outer side of the third mounting portion; a fixing hole is opened on the third mounting plane, and the steel ball pin passes through the fixing hole and is connected to the second mounting portion.

[0012] In a possible implementation, an avionics plug is further included; the end of the second mounting portion close to the first connecting member is connected to the avionics plug.

[0013] In a possible implementation manner, the first connecting member, the second connecting member, and the middle connecting member are made of aluminum alloy.

[0014] One or more technical solutions provided by this application have at least the following technical effects:

[0015] The embodiment of the utility model adopts a composite wing UAV power arm connection mechanism, including a first connection member, a second connection member and an intermediate connection member; the first connection member is connected to the tail support; the second connection member is connected to the power arm; the first connection member and the second connection member cooperate with each other; the first connection member and the intermediate connection member are detachably connected, and the second connection member and the intermediate connection member are detachably connected. The first connection member can be detachably connected to the second connection member through the intermediate connection member, thereby realizing tool-free disassembly and assembly between the power arm and the tail support, and the first connection member and the second connection member are reliably connected, thereby increasing the stability of the connection between the power arm and the tail support, and avoiding the problem of falling off and shaking. The present application solves the problem that the connection mechanism between the power arm and the tail support in the prior art is inconvenient to disassemble or there is a risk of falling off, and achieves the technical effect of being able to stably connect the power arm and the tail support, and convenient for installation and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments of the utility model will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 An axonometric diagram of the installation state of a power arm connection mechanism of a composite wing UAV provided in an embodiment of the present application;

[0018] Figure 2 An axonometric view of a first connecting member, a second connecting member, and an intermediate connecting member provided in an embodiment of the present application;

[0019] Figure 3 A front view of a first connecting member, a second connecting member and an intermediate connecting member provided in an embodiment of the present application;

[0020] Figure 4 for Figure 3 AA section view;

[0021] Figure 5 An axonometric view of a first connecting member provided in an embodiment of the present application;

[0022] Figure 6 An axonometric view of the second connecting member provided in an embodiment of the present application.

[0023] Icons: 1-first connecting member; 11-third mounting portion; 12-boss; 13-first mounting plane; 14-third mounting plane; 2-second connecting member; 21-first mounting portion; 22-second mounting portion; 23-second mounting plane; 3-middle connecting member; 31-connecting portion; 32-clamping portion; 4-avionics plug; 5-tail support; 6-power arm. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. The terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a connection between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0026] The utility model embodiment provides a composite wing UAV power arm connection mechanism, such as Figure 1-6 As shown, it includes a first connecting member 1, a second connecting member 2 and an intermediate connecting member 3; the first connecting member 1 is connected to the tail support 5; the second connecting member 2 is connected to the power arm 6; the first connecting member 1 and the second connecting member 2 cooperate with each other; the first connecting member 1 and the intermediate connecting member 3 are detachably connected, and the second connecting member 2 and the intermediate connecting member 3 are detachably connected.

[0027] Exemplarily, the first connecting member 1 is connected to the tail support 5, and the second connecting member 2 is connected to the power arm 6. The first connecting member 1 can cooperate with the second connecting member 2, and the first connecting member 1 and the second connecting member 2 are connected through the intermediate connecting member 3. The intermediate connecting member 3 includes a connecting nut, and the connecting nut is an M80 fine pitch internal thread, and its pitch is 2mm. The second connecting member 2 is provided with an M80 fine pitch external thread, and its pitch is 2mm. The internal thread of the connecting nut is screwed and fixed with the external thread on the second connecting member 2, and the connecting nut is detachably connected to the first connecting member 1. Therefore, the first connecting member 1 and the second connecting member 2 can be conveniently connected through the connecting nut, thereby achieving the technical effect of disassembling and assembling the power arm 6 and the tail support 5.

[0028] Exemplarily, the first connector 1 is fixed to the skin of the tail support 5 by adhesive bonding and riveting, and the second connector 2 is fixed to the skin of the power arm 6 by adhesive bonding and riveting. The intermediate connector 3 is axially limited on the tail support 5 by the first connector 1.

[0029] In the present application embodiment, Figure 1-6 As shown, it also includes a steel ball pin; the steel ball pin passes through the first connecting member 1 and is connected to the second connecting member 2.

[0030] Exemplarily, the first connector 1 and the second connector 2 can cooperate with each other, and after the first connector 1 and the second connector 2 are connected through the intermediate connector 3, a steel ball pin is used to prevent the first connector 1 and the second connector 2 from loosening after being connected. Specifically, a through hole is provided on the first connector 1, and a hole that cooperates with the steel ball pin is provided on the second connector 2. The steel ball pin passes through the hole on the first connector 1 and the hole on the second connector 2 in sequence, thereby achieving the technical effect of stably connecting the power arm 6 and the tail support 5. In actual applications, during the cooperation process between the first connector 1 and the second connector 2, the hole of the first connector 1 and the hole of the second connector 2 are aligned, and then the steel ball pin is inserted to prevent loosening.

[0031] In the present application embodiment, Figure 1-6 As shown, the second connecting member 2 includes a first mounting portion 21 and a second mounting portion 22; one end of the first mounting portion 21 is connected to the power arm 6, and the other end of the first mounting portion 21 is connected to the second mounting portion 22; the first connecting member 1 is arranged on the outside of the second mounting portion 22 and abuts against the first mounting portion 21.

[0032] Exemplarily, when the first connecting member 1 and the second connecting member 2 are matched, the second mounting portion 22 is inserted into the first connecting member 1 , and then the first connecting member 1 and the second connecting member 2 are connected together through the intermediate connecting member 3 .

[0033] In the present application embodiment, Figure 1-6 As shown, the intermediate connecting member 3 includes a connecting portion 31 and a clamping portion 32; the clamping portion 32 is connected to one end of the connecting portion 31 close to the first connecting member 1; the connecting portion 31 is arranged on the outside of the first mounting portion 21; and the clamping portion 32 is clamped with the first connecting member 1.

[0034] Exemplarily, the clamping portion 32 is clamped with the first connecting member 1 , and the connecting portion 31 is threadedly connected with the first mounting portion 21 .

[0035] In the present application embodiment, Figure 1-6 As shown, the first connecting member 1 includes a third mounting portion 11 and a boss 12 ; the end of the third mounting portion 11 close to the second connecting member 2 is connected with the boss 12 ; the boss 12 is engaged with the engaging portion 32 .

[0036] Exemplarily, one end of the intermediate connecting member 3 is clamped with the boss 12 , and the other end of the intermediate connecting member 3 is threadedly connected to the first mounting portion 21 .

[0037] Exemplarily, the outer diameter of the boss 12 is greater than the outer diameter of the third mounting portion 11 .

[0038] In the present application embodiment, Figure 1-6As shown, a first mounting plane 13 is disposed inside the first connecting member 1 ; a second mounting plane 23 is disposed outside the second mounting portion 22 ; and the first mounting plane 13 cooperates with the second mounting plane 23 .

[0039] For example, the first connecting member 1 and the second connecting member 2 are in interference fit, and the dimension between the two first mounting planes 13 on the first connecting member 1 is , the dimension between the two second mounting planes 23 on the second connecting member 2 is There is an interference fit between the first mounting plane 13 and the second mounting plane 23. The present application uses a variety of connection methods such as interference fit, threaded connection, riveting and gluing to achieve a reliable connection of the connection mechanism between the power arm 6 and the tail support 5 of the composite wing UAV.

[0040] In the present application embodiment, Figure 1-6 As shown, a third mounting plane 14 is disposed on the outer side of the third mounting portion 11 ; a fixing hole is opened on the third mounting plane 14 , and a steel ball pin passes through the fixing hole and is connected to the second mounting portion 22 .

[0041] In the present application embodiment, Figure 1-6 As shown, an avionics plug 4 is also included; the end of the second mounting portion 22 close to the first connecting member 1 is connected to the avionics plug 4.

[0042] In the present application embodiment, Figure 1-6 As shown, the first connecting member 1, the second connecting member 2 and the middle connecting member 3 are all made of aluminum alloy.

[0043] Illustratively, the present application realizes tool-free disassembly and assembly between the power arm 6 and the tail support 5, and meets the wiring requirements behind the tail support 5, which is convenient for inspection and replacement of components; the present application adopts a threaded connection, and through the interference fit between the first connecting member 1 and the second connecting member 2, the stability of the connection between the power arm 6 and the tail support 5 is increased, avoiding problems such as falling off and shaking; the present application has a simple structure, is easy to operate, and has added anti-loosening measures, thereby further reducing the risk of falling off and shaking.

[0044] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other. Each embodiment focuses on the differences from other embodiments.

[0045] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit the present application. Although the present application has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some or all of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the present application.

Claims

1. A composite wing UAV power arm connection mechanism, characterized in that: It comprises a first connecting member (1), a second connecting member (2) and an intermediate connecting member (3); The first connecting member (1) is connected to the tail support (5); The second connecting member (2) is connected to the power arm (6); The first connecting member (1) and the second connecting member (2) cooperate with each other; The first connecting member (1) is detachably connected to the intermediate connecting member (3), and the second connecting member (2) is detachably connected to the intermediate connecting member (3).

2. The composite wing UAV power arm connection mechanism according to claim 1, characterized in that: Also included are steel ball pins; The steel ball pin passes through the first connecting member (1) and is connected to the second connecting member (2).

3. The composite wing UAV power arm connection mechanism according to claim 2, characterized in that: The second connecting member (2) comprises a first mounting portion (21) and a second mounting portion (22); One end of the first mounting portion (21) is connected to the power arm (6), and the other end of the first mounting portion (21) is connected to the second mounting portion (22); The first connecting member (1) is arranged on the outside of the second mounting portion (22) and abuts against the first mounting portion (21).

4. The composite wing UAV power arm connection mechanism according to claim 3, characterized in that: The intermediate connecting member (3) comprises a connecting portion (31) and a clamping portion (32); The clamping portion (32) is connected to an end of the connecting portion (31) close to the first connecting member (1); The connecting portion (31) is arranged on the outside of the first mounting portion (21); The clamping portion (32) is clamped with the first connecting member (1).

5. The power arm connection mechanism of the composite wing UAV according to claim 4 is characterized in that: The first connecting member (1) comprises a third mounting portion (11) and a boss (12); The end of the third mounting portion (11) close to the second connecting member (2) is connected to a boss (12); The boss (12) is clamped with the clamping portion (32).

6. The composite wing UAV power arm connection mechanism according to claim 3, characterized in that: A first mounting plane (13) is provided inside the first connecting member (1); A second mounting plane (23) is provided on the outer side of the second mounting portion (22); The first mounting plane (13) cooperates with the second mounting plane (23).

7. The power arm connection mechanism of a composite wing UAV according to claim 5, characterized in that: A third mounting plane (14) is provided on the outer side of the third mounting portion (11); A fixing hole is provided on the third mounting plane (14), and the steel ball pin passes through the fixing hole and is connected to the second mounting portion (22).

8. The composite wing UAV power arm connection mechanism according to claim 3, characterized in that: Also included are avionics plugs (4); The end of the second mounting portion (22) close to the first connecting member (1) is connected to the avionics plug (4).

9. The composite wing UAV power arm connection mechanism according to claim 1, characterized in that: The first connecting piece (1), the second connecting piece (2) and the intermediate connecting piece (3) are made of aluminum alloy.

Images