Tilt rotor unmanned aerial vehicle

Abstract

The utility model provides a tilt rotor unmanned aerial vehicle, which belongs to the technical field of tilt rotors, and comprises a circular hollow shell and a circular shell, the outer arc surface of the circular hollow shell is provided with an arc-shaped groove, an L-shaped support plate is arranged in the circular hollow shell through a hinge column in a penetrating manner, and the side end of the L-shaped support plate is provided with a rotating rod I; the end, penetrating through the outer arc face of the arc-shaped groove, of the first rotating rod is provided with a plurality of tilting rotor fins, a notch is formed in the circular shell, the notch part of the circular shell and the side end of the L-shaped supporting plate are fixedly arranged, a rotating assembly is arranged on the circular shell and comprises two arc-shaped racks arranged on the arc face of the circular shell, and a first supporting base is arranged in the circular shell. The first supporting seats are located at the bottom of the L-shaped supporting plate, a second rotating rod is arranged between the first supporting seats, two gears are arranged on the second rotating rod, and the two gears are meshed with the two arc-shaped racks; according to the utility model, the extension space required by the telescopic rod can be saved, and meanwhile, the telescopic rod is suitable for smaller aircraft body parts.

Description

Technical Field

[0001] This utility model relates to the field of tilt rotor technology, and specifically to a tilt rotor unmanned aerial vehicle (UAV). Background Technology

[0002] Tiltrotor technology combines the advantages of rotors and fixed-wing aircraft, enabling the switching between rotor and fixed-wing flight modes via a tilting rotor motor. It possesses both the vertical takeoff and landing capabilities of rotors and the high-speed flight advantages of fixed-wing aircraft. One of the core components of tilttrotor technology is the tilting mechanism.

[0003] Currently, most publicly disclosed rotor tilting mechanisms for aircraft use electric actuators as their power source. Electric actuators offer advantages such as high thrust and a large stroke range. However, these tilting mechanisms achieve rotor tilting by adjusting the extension of the actuator to drive a linkage mechanism. The electric actuators in these mechanisms generally have a large stroke and are also bulky, directly increasing the overall size and range of motion of the mechanism. This makes them unsuitable for aircraft components with limited internal space, resulting in poor versatility. Utility Model Content

[0004] In view of this, the present invention provides a tilt-rotor unmanned aerial vehicle (UAV) that can save the extension space required for the telescopic boom and is also suitable for smaller aircraft body parts.

[0005] To solve the above-mentioned technical problems, this utility model provides a tilt-rotor drone, including a circular hollow shell and a circular shell. The outer arc surface of the circular hollow shell is provided with an arc-shaped groove. An L-shaped support plate is installed through the circular hollow shell via a hinged column. A rotating rod is installed on the side end of the L-shaped support plate. Multiple tilt-rotor blades are provided at the end of the rotating rod that passes through the outer arc surface of the arc-shaped groove. A notch is provided on the circular shell, and the notch portion of the circular shell is fixedly installed to the side end of the L-shaped support plate. A rotating assembly is provided on the circular shell. The rotating assembly includes two arc-shaped racks provided on the arc surface of the circular shell. A support base is provided inside the circular hollow shell. The support base is located at the bottom of the L-shaped support plate. A rotating rod is provided between the support bases. Two gears are provided on the rotating rod. The two gears mesh with the two arc-shaped racks. That is, the drone is driven by the rotating rod to tilt multiple blades. The tilt rotor blades generate rotation, and the tilt rotor blades generate lift during rotation, enabling the drone to take off vertically. When the drone reaches the required altitude, it enters the next stage. The drone rotates via a rotating rod between the drive support base one. The rotation of the rotating rod two drives the rotation of two gears, which mesh with two arc-shaped racks at the bottom of the circular shell. The rotation of the gears further drives the circular shell to rotate. Since the circular shell is connected to the L-shaped support plate via a hinged column, the rotation of the circular shell also drives the L-shaped support plate to rotate. When the rotation reaches 90°, the tilt rotor blades change from a vertical position to a horizontal or near-horizontal position, thereby accelerating the drone. When driven by the existing telescopic rod, it is evident that the extension space required for the telescopic rod is saved, while also accommodating smaller aircraft body components.

[0006] The rotating assembly also includes arc-shaped guide rails disposed on both sides of the circular shell. The arc-shaped guide rails are fixed to the circular shell by welding. Support base two and support base three are respectively disposed along the side end of support base one inside the circular shell. Support base two and support base three are fixed to the circular shell by welding. A pressure roller is disposed on the side end of support base two, and support rollers are disposed on the side end of support base three. The arc surface of the pressure roller is in sliding contact with the arc surface of the arc-shaped guide rail, and the arc surface of the support roller is in sliding contact with the arc surface of the arc-shaped guide rail. Thus, the support rollers and guide rollers provide guidance for the arc-shaped guide rail while also providing support.

[0007] The L-shaped support plate has two sets of support blocks at both ends. The ends of the two sets of support blocks are provided with arc surfaces, and the arc surfaces of the two sets of support blocks are in contact with the arc surfaces of support seat three and support seat one, respectively; thus, the L-shaped support plate is provided with stability.

[0008] An arc-shaped block 1 is provided on the L-shaped support plate, and an arc-shaped block 2 is provided on the upper surface of the arc-shaped block 1. The upper and lower arc surfaces of the arc-shaped block 1 and the arc surface of the arc-shaped block 2 are fitted to the arc surface of the rotating rod 1, thus providing stability for the rotating rod 1.

[0009] The upper and lower ends of the arc-shaped block one and the arc-shaped block two are fixed by bolts; this makes it easy to disassemble the arc-shaped block two and to remove and maintain the rotating rod one.

[0010] A motor is installed inside the circular shell. The output shaft of the motor is fixedly installed at one end of the rotating rod. A second motor is installed on one side of the support base. The output shaft of the second motor is fixedly installed with the rotating rod. This allows the motors to provide driving force to the rotating rod and the rotating rod, respectively.

[0011] The circular shell has a mounting block on its side; that is, the mounting block needs to be installed on the side corresponding to the fixed wing first.

[0012] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0013] 1. The rotating rod 2 between the support base 1 and the motor 2 drives the rotating rod 2 to rotate, thereby causing the rotating rod 2 to drive the two gears to rotate. The two gears are transmitted to the two arc-shaped racks on the bottom of the circular shell. Since the hinge column is fixed between the L support plates, the circular shell and the L support plates rotate. This indirectly drives the rotating rod 1 to rotate at 90°, thereby driving the multiple tilting rotor blades to rotate, thus increasing the speed of the UAV. Compared with the existing telescopic rod, it can be seen that the extension space required for the telescopic rod is saved, and it can also be adapted to smaller aircraft body parts.

[0014] 2. When the L-shaped support plate is rotated forward or backward by the circular shell to 90 degrees, the arc surface of each set of support blocks will fit into the arc surface of support seat three and support seat one respectively, thereby improving the support of the L-shaped support plate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a tiltrotor unmanned aerial vehicle according to the present invention;

[0016] Figure 2 This is a schematic diagram of the internal structure of the circular hollow shell of this utility model;

[0017] Figure 3 This is a schematic diagram of the circular shell structure of this utility model;

[0018] Figure 4 This is a front view structural diagram of the circular shell of this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the circular shell side end of this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 100. Circular shell; 101. Arc-shaped groove; 102. Tilting rotor blade; 103. Rotating rod one; 104. Mounting block; 105. Hinge column; 106. Circular shell; 107. Support block; 108. Motor one; 109. Arc-shaped block one; 110. Arc-shaped block two; 111. L-shaped support plate; 112. Motor two;

[0022] 200. Gear; 201. Arc-shaped rack; 202. Arc-shaped guide rail; 203. Support base one; 204. Rotating rod two; 205. Support base two; 206. Pressure roller; 207. Support base three; 208. Support roller; Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-5 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0024] like Figure 1-5As shown: This embodiment provides a tiltrotor unmanned aerial vehicle (UAV), including a circular shell 100 and a circular shell 106. The outer arc surface of the circular shell 100 is provided with an arc-shaped groove 101. An L-shaped support plate 111 is installed inside the circular shell 100 through a hinge post 105. The hinge post 105 passes through the L-shaped support plate 111, allowing the L-shaped support plate 111 to rotate within the circular shell 100. A rotating rod 103 is installed on the side end of the L-shaped support plate 111. The rotating rod 103 is fixedly installed on the L-shaped support plate 111 using existing technology. The rotating rod 103 can rotate within the L-shaped support plate 111. The rotating rod 103 passes through the outer arc surface of the arc-shaped groove 101 and is equipped with multiple tilting rotor blades 102. These blades are mounted on the rotating rod 103, and the rotating rod drives the blades to rotate, generating lift for the drone. A notch is provided on the circular shell 106, and the notch is fixed to the side of the L-support plate 111. The notch is welded or bolted to the L-support plate 111, thus making the circular shell 106 and the L-support plate 111 a single unit. The circular shell 106 is equipped with... A rotating assembly includes two arc-shaped racks 201 disposed on the arc surface of a circular shell 106. The two arc-shaped racks 201 are fixed to the arc surface of the circular shell 106 by welding. A support seat 203 is disposed inside the circular shell 100 and is fixed to the circular shell 100 by welding. The support seat 203 is located at the bottom of the L-shaped support plate 111, thereby fixing the shell and providing support for the support seat 203. A rotating rod 204 is disposed between the support seats 203 and is mounted between the support seats 203 by bearings. 04 can rotate. Two gears 200 are provided on the rotating rod 204. The two gears 200 mesh with two arc-shaped racks 201. When the rotating rod 204 rotates, it can drive the two gears 200 to rotate. In turn, the two gears 200 transmit power to the two arc-shaped racks 201, which causes the circular shell 106 and the L support plate 111 to rotate, indirectly driving the rotating rod 103 to rotate. This allows the rotating rod 103 to rotate 90 degrees, which facilitates the adjustment of the tilt rotor of the UAV, while saving space and adapting to smaller aircraft body parts.

[0025] Firstly, when the drone needs to take off vertically, it is driven by rotating rod 103, which drives multiple tilting rotor blades 102, allowing the drone to take off vertically. Once the drone reaches a suitable height, rotating rod 204 between support base 203 is driven to rotate, causing two gears 200 to rotate. These gears are then transmitted to two arc-shaped racks 201 at the bottom of the circular shell 106. Since the hinge column 105 is fixed between the L-shaped support plates 111, the circular shell 106 and the L-shaped support plates 111 rotate. This indirectly drives rotating rod 103 to a 90° angle, thereby driving the multiple tilting rotor blades 102 to rotate, thus increasing the drone's speed. Compared to existing telescopic rods, this design clearly saves the extension space required for telescopic rods and is suitable for smaller aircraft components.

[0026] 106 round shells Figure 5 As shown,

[0027] The rotating assembly also includes arc-shaped guide rails 202 disposed on both sides of the circular shell 106. The arc-shaped guide rails 202 are fixed to the circular shell 106 by welding. Inside the circular shell 100, along the side ends of the first support 203, there are second support 205 and third support 207 respectively. The second support 205 and third support 207 are fixed to the circular shell 100 by welding. A pressure roller 206 is disposed on the side end of the second support 205. The pressure roller 206 is mounted on the second support 205 and can rotate. Support rollers are disposed on the side ends of the third support 207. 208. The support roller 208 is mounted on the support base 207 and can rotate on the support base 207. The arc surface of the pressure roller 206 is in sliding contact with the arc surface of the arc guide rail 202. The arc surface of the support roller 208 is in sliding contact with the arc surface of the arc guide rail 202. Thus, the support roller 208 and the pressure roller 206 are located on the upper and lower sides of the arc guide rail 202, respectively. As the circular shell 106 rotates, it can drive the arc guide rail 202 to rotate. At the same time, the support roller 208 and the pressure roller 206 provide necessary support and guidance for the circular shell 106.

[0028] When the circular shell 106 begins to rotate, it drives the arc-shaped guide rail 202 to rotate as well. Since both the pressure roller 206 and the support roller 208 maintain sliding contact with the arc-shaped guide rail 202, they rotate along with the arc-shaped guide rail 202, thus providing the necessary support and guidance for the rotation of the circular shell 106.

[0029] L support plate 111 as shown Figure 5 As shown,

[0030] Two sets of support blocks 107 are provided at both ends of the L support plate 111. The two sets of support blocks 107 are fixed to the L support plate 111 by welding. The ends of the two sets of support blocks 107 are provided with arc surfaces. The arc surfaces of the two sets of support blocks 107 are in contact with the arc surfaces of support seat 3 207 and support seat 1 203, respectively.

[0031] When the L-support plate 111 is rotated forward or backward by the circular shell 106 to 90 degrees, the arc surface of each set of support blocks 107 will fit with the arc surface of support seat 3 207 and support seat 1 203 respectively, thereby improving the support of the L-support plate 111.

[0032] L support plate 111 as shown Figure 5 As shown,

[0033] An arc-shaped block 109 is provided on the L-support plate 111. The arc-shaped block 109 is welded to the L-support plate 111. An arc-shaped block 2 110 is provided on the upper surface of the arc-shaped block 109. The upper and lower arc surfaces of the arc-shaped block 109 and the arc-shaped block 2 110 are fitted to the arc surface of the rotating rod 103, so that the rotating rod 103 can rotate between the arc-shaped block 109 and the arc-shaped block 2 110, while providing stability for the rotating rod 103.

[0034] Arc-shaped block 109 Figure 3 As shown,

[0035] The upper and lower ends of the arc-shaped block 109 and the arc-shaped block 210 are fixed by bolts. The bolts on the top of the arc-shaped block 210 pass through the arc-shaped block 109, thus providing fixation for the arc-shaped block 210 and the arc-shaped block 109, while facilitating the disassembly of the arc-shaped block 210 and the removal of the rotating rod 103.

[0036] 100 round hollow shells Figure 4 As shown,

[0037] A motor 108 is installed inside the circular shell 100. The output shaft of the motor 108 is fixedly installed inside the circular shell 100 and is fixedly installed at one end of the rotating rod 103, thereby providing driving force for the rotating rod 103. This facilitates the rotating rod 103 to drive the tilting rotor blade 102 to rotate. A motor 212 is installed on one side of the support base 203. The output shaft of the motor 212 is fixedly installed with the rotating rod 204. The motor 212 can drive the rotating rod 204, thereby causing the two gears 200 to rotate.

[0038] Installing block 104, as shown Figure 1 As shown,

[0039] A mounting block 104 is provided on the side end of the circular shell 100. The mounting block 104 is fixed to one side of the circular shell 100 by welding. The mounting block 104 is used to install on one side of the fixed wing of the UAV.

[0040] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A tilt-rotor unmanned aerial vehicle, characterized in that: The device includes a circular shell (100) and a circular shell (106). The outer arc surface of the circular shell (100) is provided with an arc-shaped groove (101). An L-shaped support plate (111) is installed inside the circular shell (100) through a hinged column (105). A rotating rod (103) is installed on the side end of the L-shaped support plate (111). Multiple tilting rotor blades (102) are provided at the end of the rotating rod (103) that passes through the outer arc surface of the arc-shaped groove (101). A notch is provided on the circular shell (106). The notch portion of the circular shell (106) connects to the L-shaped support plate (106). The side end of 111) is fixedly set, and a rotating component is set on the circular shell (106). The rotating component includes two arc-shaped racks (201) set on the arc surface of the circular shell (106). A support seat (203) is set inside the circular shell (100). The support seat (203) is located at the bottom of the L support plate (111). A rotating rod (204) is set between the support seats (203). Two gears (200) are set on the rotating rod (204). The two gears (200) mesh with the two arc-shaped racks (201).

2. The tilt-rotor unmanned aerial vehicle as described in claim 1, characterized in that: The rotating assembly also includes arc-shaped guide rails (202) on both sides of the circular shell (106). Inside the circular shell (100), support base two (205) and support base three (207) are respectively provided along the side end of support base one (203). A pressure roller (206) is provided on the side end of support base two (205), and support rollers (208) are provided on the side end of support base three (207). The arc surface of the pressure roller (206) is in sliding contact with the arc surface of the arc-shaped guide rail (202), and the arc surface of the support roller (208) is in sliding contact with the arc surface of the arc-shaped guide rail (202).

3. A tiltrotor unmanned aerial vehicle as described in claim 2, characterized in that: The L support plate (111) has two sets of support blocks (107) at both ends. The ends of the two sets of support blocks (107) are provided with arc surfaces. The arc surfaces of the two sets of support blocks (107) are in contact with the arc surfaces of support seat three (207) and support seat one (203), respectively.

4. A tiltrotor unmanned aerial vehicle as described in claim 3, characterized in that: An arc-shaped block one (109) is provided on the L support plate (111), and an arc-shaped block two (110) is provided on the upper surface of the arc-shaped block one (109). The upper and lower arc surfaces of the arc-shaped block one (109) and the arc-shaped block two (110) are fitted to the arc surface of the rotating rod one (103).

5. A tilt-rotor unmanned aerial vehicle as described in claim 4, characterized in that: The upper and lower ends of the arc-shaped block one (109) and the arc-shaped block two (110) are fixed together by bolts.

6. A tilt-rotor unmanned aerial vehicle as described in claim 5, characterized in that: The circular shell (100) is equipped with a motor (108), the output shaft of which is fixedly mounted on one end of a rotating rod (103). A motor (112) is mounted on one side of a support base (203), and the output shaft of the motor (112) is fixedly mounted on a rotating rod (204).

7. A tilt-rotor unmanned aerial vehicle as described in claim 5, characterized in that: The circular shell (100) is provided with a mounting block (104) on its side.

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