Propeller hub suitable for eVTOL rotor wing

Abstract

The utility model discloses a propeller hub suitable for an eVTOL rotor wing, and relates to the technical field of propeller hubs. The propeller hub comprises a propeller hub body and a rotor wing, a connecting piece is fixedly arranged at the end, close to the propeller hub body, of the rotor wing, and an adjusting assembly is arranged between the connecting piece and the propeller hub body. The threaded rod drives the moving ring to move upwards, the moving ring drives the connecting rod to rotate along the joint, the moving rod moves in the direction away from the threaded rod, the moving rod drives the fixing block to move, the fixing block drives the rotors to move through the connecting base, then the distance between the rotors is adjusted, and therefore the situation that the rotors are inconvenient to adjust can be avoided; therefore, the purpose of conveniently adjusting the stability is achieved; one end of the moving rod movably penetrates through the through groove, the limiting block is moved into the groove through extrusion force of the inclined face of the moving rod on the inclined face of the limiting block, the first spring drives the limiting block to move through elastic force, the limiting block is inserted into the inserting groove to fix the moving rod, and therefore the rotor wing can be conveniently installed, and the purpose of convenient installation is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of propeller hubs, and specifically relates to a propeller hub suitable for eVTOL rotors. Background Technique

[0002] eVTOL (electric Vertical Take-off and Landing), that is, an electric vertical take-off and landing aircraft. The propeller hub is the part where each propeller blade is installed and combined. It is located at the end of the propeller, mostly conical or frustum-shaped, and fits with the stern shaft. A keyway is opened at the back of the fit, and a key is inserted. It is the stern shaft that drives the propeller to rotate;

[0003] Most of the existing propeller hubs fixedly install the rotors, but the distance between the rotors cannot be adjusted, resulting in a decrease in the stability of the propeller blades at different rotational speeds. Content of the Utility Model

[0004] In order to solve the problem of the decrease in the stability of the propeller blades at different rotational speeds; the purpose of the utility model is to provide a propeller hub suitable for eVTOL rotors.

[0005] To solve the above technical problems, the present utility model adopts the following technical solutions: A hub suitable for eVTOL rotors, comprising a hub body and rotors. The rotors are distributed in an annular array and are located outside the hub body. A connecting member is fixedly provided at one end of the rotor close to the hub body. Connecting seats distributed in an annular array are installed on the outside of the hub body. An adjusting assembly is provided between the connecting member and the hub body. The adjusting assembly includes a threaded rod and a moving rod. The moving rods are distributed in an annular array. One end of the moving rod movably penetrates the hub body. A moving ring is threadedly sleeved on the outside of the threaded rod. Connecting rods distributed in an annular array are rotatably installed on the outside of the moving ring. One end of the connecting rod is rotatably connected to one end of the moving rod. A fixed block is fixedly provided on the outside of the connecting member. A through groove is opened on the outside of the fixed block. One end of the moving rod is movably inserted into the through groove. By driving the moving ring to move upward by the threaded rod, the moving ring drives the connecting rod to rotate along the connection, so that the moving rod moves away from the threaded rod. The moving rod drives the fixed block to move. The fixed block drives the rotor to move through the connecting seat, thereby adjusting the distance between the rotors. In this way, the situation where the rotors are inconvenient to adjust can be avoided. A groove is opened on the inner wall of the through groove. A limiting block is slidably clamped on the inner wall of the groove. A slot is opened at one end of the moving rod. One end of the limiting block movably extends into the slot. The moving rod can be fixed by inserting the limiting block into the slot. A support plate is rotatably installed at the top end of the threaded rod. A motor is fixedly provided on the upper surface of the support plate. The end of the output shaft of the motor movably penetrates the support plate and is fixedly connected to the top end of the threaded rod. The support plate can facilitate the installation of the motor. The motor can provide power for the rotation of the threaded rod. A pull rod movably penetrates the top end of the fixed block. One end of the pull rod is inserted into the groove and is fixedly connected to the top end of the limiting block. The pull rod can facilitate the movement of the limiting block. Symmetrically distributed first springs are fixedly provided on the inner wall of the groove. One end of the first spring is fixedly connected to one side of the limiting block. The limiting block is driven to reset by the elastic force of the first spring. A pull plate is fixedly provided at the top end of the pull rod. The pull plate can facilitate the movement of the pull rod. A limiting disk is fixedly provided at the bottom end of the threaded rod. The moving ring can be limited by the limiting disk.

[0006] Preferably, a positioning plate is fixedly provided on the outside of the moving rod. A guiding groove is opened on the outside of the positioning plate. A fixed rod slidably penetrates the outside of the guiding groove. One end of the fixed rod is fixedly connected to the inner wall of the hub body. By driving the positioning plate to move by the moving rod, the positioning plate moves stably on the fixed rod through the guiding groove.

[0007] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0008] 1. The threaded rod drives the moving ring to move upward. The moving ring drives the connecting rod to rotate along the connection point, causing the moving rod to move away from the threaded rod. The moving rod drives the fixed block to move, and the fixed block drives the rotor to move through the connecting seat, thereby adjusting the distance between the rotors. This can avoid the situation where the rotors are inconvenient to adjust, thus achieving the purpose of facilitating the adjustment of stability.

[0009] 2. One end of the moving rod movably penetrates through the through groove. Through the extrusion force of the inclined surface of the moving rod on the inclined surface of the limit block, the limit block is moved into the groove. The first spring drives the limit block to move through its elastic force, causing the limit block to insert into the slot to fix the moving rod. This can facilitate the installation of the rotor, thus achieving the purpose of convenient installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0011] Figure 1 It is a schematic structural diagram of the present invention.

[0012] Figure 2 It is a schematic structural diagram of the adjustment assembly of the present invention.

[0013] Figure 3 It is a schematic cross-sectional truncation diagram of the moving rod and its connection structure of the present invention.

[0014] In the figure: 1, hub body; 2, rotor; 3, adjustment assembly; 31, threaded rod; 32, moving rod; 33, moving ring; 34, connecting rod; 35, fixed block; 36, through groove; 37, groove; 38, limit block; 39, slot; 310, support plate; 311, motor; 312, first spring; 313, pull rod; 314, pull plate; 315, limit plate; 316, positioning plate; 317, guide groove; 318, fixed rod; 4, connecting seat; 5, connecting member. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0016] Embodiment: AsFigures 1-3 As shown in the figure, the utility model provides a hub suitable for eVTOL rotors, which includes a hub body 1 and rotors 2. The rotors 2 are distributed in an annular array and are located outside the hub body 1. A connecting piece 5 is fixedly arranged at one end of the rotor 2 close to the hub body 1. Connecting seats 4 distributed in an annular array are installed on the outside of the hub body 1. An adjusting assembly 3 is arranged between the connecting piece 5 and the hub body 1; the adjusting assembly 3 includes a threaded rod 31 and a moving rod 32. The moving rods 32 are distributed in an annular array. One end of the moving rod 32 movably penetrates the hub body 1. A moving ring 33 is sleeved on the outside of the threaded rod 31. Rotating connecting rods 34 distributed in an annular array are installed on the outside of the moving ring 33. One end of the connecting rod 34 is rotatably connected to one end of the moving rod 32. A fixing block 35 is fixedly arranged on the outside of the connecting piece 5. A through groove 36 is opened on the outside of the fixing block 35. One end of the moving rod 32 is movably inserted into the through groove 36. By driving the moving ring 33 to move upward through the threaded rod 31, the connecting rod 34 is driven by the moving ring 33 to rotate along the connection point, so that the moving rod 32 moves away from the threaded rod 31. The moving rod 32 drives the fixing block 35 to move. The fixing block 35 drives the rotor 2 to move through the connecting seat 4, thereby adjusting the distance between the rotors 2. In this way, the situation that the rotors 2 are inconvenient to adjust can be avoided. A groove 37 is opened on the inner wall of the through groove 36. A limiting block 38 is slidably clamped on the inner wall of the groove 37. A slot 39 is opened at one end of the moving rod 32. One end of the limiting block 38 is movably inserted into the slot 39. The moving rod 32 can be fixed by inserting the limiting block 38 into the slot 39. A support plate 310 is rotatably installed at the top end of the threaded rod 31. A motor 311 is fixedly arranged on the upper surface of the support plate 310. The end of the output shaft of the motor 311 movably penetrates the support plate 310 and is fixedly connected to the top end of the threaded rod 31. The motor 311 can be conveniently installed through the support plate 310. The motor 311 can provide power for the rotation of the threaded rod 31. A pull rod 313 movably penetrates the top end of the fixing block 35. One end of the pull rod 313 is inserted into the groove 37 and is fixedly connected to the top end of the limiting block 38. The limiting block 38 can be conveniently moved through the pull rod 313. Symmetrically distributed first springs 312 are fixedly arranged on the inner wall of the groove 37. One end of the first spring 312 is fixedly connected to one side of the limiting block 38. The limiting block 38 is driven to reset by the elastic force of the first spring 312. A pull plate 314 is fixedly arranged at the top end of the pull rod 313. The pull rod 313 can be conveniently moved through the pull plate 314. A limiting disk 315 is fixedly arranged at the bottom end of the threaded rod 31. The moving ring 33 can be limited through the limiting disk 315.

[0017] A positioning plate 316 is fixedly arranged on the outer side of the moving rod 32. A guiding groove 317 is formed on the outer side of the positioning plate 316. A fixing rod 318 slidably penetrates through the outer side of the guiding groove 317. One end of the fixing rod 318 is fixedly connected to the inner wall of the hub body 1. By driving the positioning plate 316 to move through the moving rod 32, the positioning plate 316 moves stably on the fixing rod 318 through the guiding groove 317.

[0018] Working principle: First, the connecting piece 5 is clamped onto the connecting seat 4, and the connecting piece 5 is moved so that one end of the moving rod 32 movably penetrates through the through groove 36. Through the extrusion force of the inclined surface of the moving rod 32 on the inclined surface of the limiting block 38, the limiting block 38 is moved into the groove 37. At the same time, the limiting block 38 compresses the first spring 312, causing the first spring 312 to generate an elastic force. The first spring 312 drives the limiting block 38 to move through the elastic force, so that the limiting block 38 is inserted into the slot 39 to fix the moving rod 32, which can facilitate the installation of the rotor 2.

[0019] When the distance between the rotors 2 needs to be adjusted, the motor 311 is started, causing the motor 311 to start working. The end of the output shaft of the motor 311 drives the threaded rod 31 to rotate. The threaded rod 31 drives the moving ring 33 to move upward. The moving ring 33 drives the connecting rod 34 to rotate along the connection point, causing the moving rod 32 to move away from the threaded rod 31. At the same time, the moving rod 32 drives the positioning plate 316 to move. The positioning plate 316 moves stably on the fixing rod 318 through the guiding groove 317. Then, the moving rod 32 drives the fixing block 35 to move. The fixing block 35 drives the rotor 2 to move through the connecting seat 4, thereby adjusting the distance between the rotors 2, which can avoid the situation where the rotors 2 are inconvenient to adjust, so as to achieve the purpose of facilitating the adjustment of stability.

[0020] Obviously, those skilled in the art can make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

1. A propeller hub suitable for an eVTOL rotor, comprising a propeller hub body (1) and a rotor (2), characterized in that: The rotors (2) are distributed in an annular array and are located outside the hub body (1); a connecting piece (5) is fixedly provided at one end of the rotor (2) close to the hub body (1); a connecting seat (4) distributed in an annular array is installed on the outside of the hub body (1); an adjustment assembly (3) is provided between the connecting piece (5) and the hub body (1); the adjustment assembly (3) comprises a threaded rod (31) and a moving rod (32); the moving rod (32) is distributed in an annular array; the moving rod (32) is One end movably penetrates the hub body (1); a movable ring (33) is provided on the outer thread sleeve of the threaded rod (31); connecting rods (34) distributed in a ring array are rotatably installed on the outer side of the movable ring (33); one end of the connecting rod (34) is rotatably connected to one end of the movable rod (32); a fixing block (35) is fixedly provided on the outer side of the connecting member (5); a through groove (36) is provided on the outer side of the fixing block (35); and one end of the movable rod (32) is movably inserted into the through groove (36).

2. A propeller hub suitable for an eVTOL rotor according to claim 1, characterized in that: A positioning plate (316) is fixedly provided on the outer side of the movable rod (32), a guide groove (317) is provided on the outer side of the positioning plate (316), a fixing rod (318) slides through the outer side of the guide groove (317), and one end of the fixing rod (318) is fixedly connected to the inner wall of the hub body (1).

3. A propeller hub suitable for an eVTOL rotor according to claim 1, characterized in that: The inner wall of the through slot (36) is provided with a groove (37), the inner wall of the groove (37) is slidably provided with a limit block (38), one end of the moving rod (32) is provided with a slot (39), and one end of the limit block (38) moves in the slot (39).

4. A propeller hub suitable for an eVTOL rotor according to claim 1, characterized in that: A support plate (310) is rotatably mounted on the top end of the threaded rod (31), a motor (311) is fixedly mounted on the upper surface of the support plate (310), and an end of an output shaft of the motor (311) movably penetrates the support plate (310) and is fixedly connected to the top end of the threaded rod (31).

5. A propeller hub suitable for an eVTOL rotor according to claim 3, characterized in that: A pull rod (313) movably penetrates the top end of the fixed block (35), and one end of the pull rod (313) is inserted into the groove (37) and fixedly connected to the top end of the limit block (38).

6. A propeller hub suitable for an eVTOL rotor according to claim 3, characterized in that: The inner wall of the groove (37) is fixedly provided with symmetrically distributed first springs (312), and one end of the first spring (312) is fixedly connected to one side of the limit block (38).

7. A propeller hub suitable for an eVTOL rotor according to claim 5, characterized in that: A pull plate (314) is fixedly provided at the top end of the pull rod (313).

8. A propeller hub suitable for an eVTOL rotor according to claim 1, characterized in that: A limiting plate (315) is fixedly provided at the bottom end of the threaded rod (31).

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