Propeller tilting mechanism

Abstract

The utility model discloses a propeller tilting mechanism, which is applied to the field of aircraft propellers, and is characterized in that a rotating motor I is arranged at the bottom of a propeller body, a fixing ring is fixedly sleeved on the surface of the rotating motor I, and when the propeller tilting mechanism is used, a rotating motor II is operated, so that the propeller tilting mechanism can be used for tilting the propeller. The output end of a second rotating motor can drive a worm to rotate synchronously, at the moment, a worm gear meshed with the worm rotates, the worm gear drives a second rod body and a second gear to rotate synchronously, meanwhile, a first gear meshed with the second gear drives a first rod body to rotate, and the first rod body drives a supporting plate and a fixing ring; the first rotating ground and the propeller body rotate in a tilting mode, in the meshing process of the first gear and the second gear, the rotating speed transmitted to the propeller body can be adjusted and controlled more conveniently, meanwhile, through meshing of the worm and the worm wheel, self-locking of the angle of the propeller body is achieved when the second rotating motor stops, and using is more convenient.

Description

Technical Field

[0001] The utility model belongs to the field of aircraft propellers, and particularly relates to a propeller tilting mechanism. Background Art

[0002] Conventional UAVs use taxiing and landing to achieve takeoff and landing, and are highly dependent on runways. By using engine thrust steering technology to achieve short takeoff or vertical takeoff and vertical landing, the ground speed can be lower than that of conventional aircraft under the same weight conditions, the taxiing distance is shorter, and the time to complete the takeoff is shorter, thus getting rid of the dependence on airport runways and having high economic application value. Therefore, a propeller tilt mechanism is needed to realize engine thrust steering technology.

[0003] At present, the Chinese utility model with the announcement number: CN205396540U discloses a propeller tilt mechanism for a drone, including: a tilt shaft, which is fixedly connected to the wing tip of the wing; a mounting plate, which is sleeved on the tilt shaft; a spiral device, which includes a motor and a propeller connected by the motor, and the motor is fixed on the mounting plate; and a tilt device, which includes a tilt servo, which is fixed on the mounting plate, the motor is located above the tilt shaft, the tilt servo is located below the tilt shaft, and the tilt servo drives the tilt shaft to move, so as to drive the mounting plate to rotate synchronously. A tilt mechanism with a simple structure is set at the wing tip of the wing, which has the advantages of light weight, reduces the torsional moment during tilting, and can increase the service life of the wing.

[0004] The tilt mechanism has the beneficial effect of reducing the torsional torque during tilting, but in use, since the motor cannot be self-locked when the power is cut off, a self-locking structure is often added to self-lock to ensure the use of the propeller, but this behavior increases the cost and the weight of the propeller itself, causing inconvenience in the use of the propeller. Utility Model Content

[0005] The utility model aims to provide a propeller tilting mechanism, which has the advantages of increasing self-locking, ensuring the use of the propeller and avoiding the function of increasing weight.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: a propeller tilt mechanism, including a propeller body, a rotating motor 1 is provided at the bottom of the propeller body, a fixing ring is fixedly sleeved on the surface of the rotating motor 1, support plates are fixedly installed on both sides of the bottom of the fixing ring, a rod body 1 is fixedly sleeved inside the support plate, both ends of the rod body 1 are rotatably connected to mounting plates through bearings, a gear 1 is fixedly sleeved on the surface of the rod body 1, a gear 2 is meshed on the surface of the gear 1, a worm wheel is provided on one side of the gear 2, a worm is meshed on the surface of the worm wheel, a connecting rod is fixedly sleeved on the output end of the rotating motor 1 through a coupling, an insert block penetrating into the inside of the connecting rod is fixedly installed on the bottom of the propeller body, and a connecting bolt penetrating from the insert block to the other side of the connecting rod is provided on one side of the connecting rod.

[0007] The above technical solution is adopted: when the propeller tilt mechanism is used, by running the rotating motor 2, the output end of the rotating motor 2 can drive the worm to rotate synchronously, at this time, the worm wheel meshing with the worm rotates, and the worm wheel drives the rod body 2 and the gear 2 to rotate synchronously, and at the same time, the gear 1 meshing with the gear 2 drives the rod body 1 to rotate, and the rod body 1 drives the support plate and the fixing ring, so that the rotating ground 1 and the propeller body are tilted, and when the gear 1 and the gear 1 are meshed, the rotation speed transmitted to the propeller body can be more easily adjusted and controlled, and at the same time, through the worm and the worm wheel The engagement will realize self-locking of the angle of the propeller body when the rotating motor two stops, which is more convenient to use. When the propeller tilt mechanism is in use, the rotation of the propeller body is realized by running the rotating motor one. When the propeller body is damaged and needs maintenance and replacement, the plug of the propeller body can be pulled out of the slot by disassembling the connecting bolts, and the contact between one end of the propeller body and the contact layer can be eliminated. The propeller body can be conveniently disassembled for maintenance and replacement of the propeller body. This structure is easy to install and disassemble, and the propeller body is convenient to use.

[0008] The utility model is further configured that the gear 2 and the worm wheel are internally fixedly sleeved with a rod body 2, and both ends of the rod body 2 are rotatably connected to each other through bearings and a mounting plate.

[0009] The above technical solution is adopted: the gear 2 and the worm gear are supported by the rod body 2, and the smooth rotation of the rod body 2 is facilitated by the bearing.

[0010] The utility model is further configured that a second rotary motor is provided between the two mounting plates, and the output end of the second rotary motor is fixedly sleeved with the worm through a coupling.

[0011] The above technical solution is adopted: the operation of the rotating motor 2 will drive the worm to rotate synchronously.

[0012] The utility model is further configured that a supporting plate fixedly connected to the mounting plate is fixedly mounted on the bottom of the second rotating motor.

[0013] The above technical solution is adopted: the rotating motor 2 is supported and fixed by the supporting plate.

[0014] The utility model is further configured that a sliding block is fixedly mounted on one side of the support plate, a sliding groove for cooperating with the sliding block is provided inside the mounting plate, and the sliding groove is designed in an arc shape.

[0015] The above technical solution is adopted: through the cooperation of the slider and the slide groove, the support plate can be easily moved and guided on one side of the mounting plate, and the arc-shaped design will facilitate the rotation trajectory of the support plate to rotate around the rod body.

[0016] The utility model is further configured that a slot is provided inside the connecting rod, the slot cooperates with the insert block to be mutually engaged for use, and a mounting hole is provided inside the mounting plate.

[0017] The above technical solution is adopted: the slot is used to cooperate with the slot for plugging and use, so as to increase the connectivity between the propeller body and the connecting rod, and the mounting hole is used to cooperate with the mounting plate for installation and fixation.

[0018] The utility model is further configured that side holes for fitting connecting bolts are provided on both sides of the connecting rod, and through holes for fitting connecting bolts are provided inside the side holes.

[0019] The above technical solution is adopted: the side holes are used in conjunction with the connecting bolts for installation to prevent the two ends of the connecting bolts from protruding from the connecting rod surface, and the through holes are used in conjunction with the connecting bolts to penetrate the plug blocks.

[0020] The utility model is further configured that contact layers are fixedly bonded on both sides of one end of the connecting rod, and an internal thread matched with a threaded connection of a connecting bolt is provided inside the connecting rod.

[0021] The above technical solution is adopted: the protection and anti-slip properties between the connecting rod and the propeller body are increased by the contact layer, and the installation connection between the connecting bolt and the connecting rod is facilitated by the internal thread.

[0022] In summary, the utility model has the following beneficial effects:

[0023] 1. When the propeller tilt mechanism is used, the utility model runs the rotating motor 2 so that the output end of the rotating motor 2 can drive the worm to rotate synchronously. At this time, the worm wheel meshing with the worm rotates, and the worm wheel drives the rod body 2 and the gear 2 to rotate synchronously. At the same time, the gear 1 meshing with the gear 2 drives the rod body 1 to rotate, and the rod body 1 drives the support plate and the fixing ring, so that the rotating ground 1 and the propeller body can be tilted. When the gear 1 and the gear 1 are meshed, the rotation speed transmitted to the propeller body can be more convenient to adjust and control. At the same time, the meshing of the worm and the worm wheel can realize the self-locking of the angle of the propeller body when the rotating motor 2 stops, which is more convenient to use.

[0024] 2. When the propeller tilt mechanism is used, the propeller body can be rotated by rotating the motor 1. When the propeller body is damaged and needs maintenance and replacement, the plug of the propeller body can be pulled out of the slot by disassembling the connecting bolts, and the contact between one end of the propeller body and the contact layer can be eliminated. The propeller body can be conveniently disassembled to facilitate maintenance and replacement of the propeller body. The structure is easy to install and disassemble, and the propeller body is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 It is a front view schematic diagram of the structure of the utility model;

[0027] Figure 3 This is a schematic diagram on the right side of the utility model showing the worm and worm wheel in cooperation;

[0028] Figure 4 It is a side view schematic diagram of the mounting plate of the utility model;

[0029] Figure 5 It is a partial enlarged schematic cross-sectional view of the connecting rod and the propeller body of the utility model.

[0030] Reference numerals:

[0031] 1. Propeller body; 2. Connecting rod; 3. Rotating motor 1; 4. Fixing ring; 5. Support plate; 6. Sliding block; 7. Slide groove; 8. Mounting plate; 9. Gear 1; 10. Rod body 1; 11. Rod body 2; 12. Gear 2; 13. Worm; 14. Rotating motor 2; 15. Mounting hole; 16. Insert block; 17. Slot; 18. Connecting bolt; 19. Side hole; 20. Through hole; 21. Contact layer; 22. Worm gear. DETAILED DESCRIPTION

[0032] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0033] Embodiment 1:

[0034] refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 A propeller tilt mechanism comprises a propeller body 1, a rotating motor 3 is provided at the bottom of the propeller body 1, a fixing ring 4 is fixedly sleeved on the surface of the rotating motor 3, support plates 5 are fixedly installed on both sides of the bottom of the fixing ring 4, a rod body 10 is fixedly sleeved inside the support plate 5, both ends of the rod body 10 are rotatably connected with mounting plates 8 through bearings, a gear 9 is fixedly sleeved on the surface of the rod body 10, a gear 2 12 is meshed on the surface of the gear 9, a worm wheel 22 is provided on one side of the gear 2 12, a worm 13 is meshed on the surface of the worm wheel 22, and when the propeller tilt mechanism is used, the rotating motor 2 14 is operated so that the rotating motor 2 14 The output end can drive the worm 13 to rotate synchronously. At this time, the worm wheel 22 meshing with the worm 13 realizes rotation, and the worm wheel 22 drives the rod body 2 11 and the gear 2 12 to realize synchronous rotation. At the same time, the gear 1 9 meshing with the gear 2 12 will drive the rod body 10 to rotate, and the rod body 10 drives the support plate 5 and the fixing ring 4, so that the rotating ground 1 and the propeller body 1 can be tilted. In the meshing of the gear 1 9 and the gear 1 12, the rotation speed transmitted to the propeller body 1 can be more convenient to adjust and control. At the same time, through the meshing of the worm 13 and the worm wheel 22, the self-locking of the angle of the propeller body 1 will be realized when the rotating motor 2 14 stops, which is more convenient to use.

[0035] refer to Figure 2 The gear 2 12 and the worm wheel 22 are fixedly sleeved with the rod body 21 inside, and both ends of the rod body 11 are rotatably connected to the mounting plate 8 through bearings. The gear 2 12 and the worm wheel 22 are supported by the rod body 11, and the bearing facilitates the smooth rotation of the rod body 11.

[0036] refer to Figure 1 A rotary motor 14 is provided between the two mounting plates 8. The output end of the rotary motor 14 is fixedly sleeved with the worm 13 through a coupling. The operation of the rotary motor 14 drives the worm 13 to rotate synchronously.

[0037] refer to Figure 2 A supporting plate fixedly connected to the mounting plate 8 is fixedly installed at the bottom of the rotating motor 14, and the rotating motor 14 is supported and fixed by the supporting plate.

[0038] refer to Figure 4A slider 6 is fixedly installed on one side of the support plate 5, and a slide groove 7 is opened inside the mounting plate 8 for cooperating with the slider 6. The slide groove 7 is designed in an arc shape. Through the cooperation between the slider 6 and the slide groove 7, the support plate 5 can be moved and guided on one side of the mounting plate 8. The arc shape design will facilitate the rotation trajectory of the support plate 5 to rotate around the rod body 10.

[0039] Brief description of the use process: when using the propeller tilt mechanism, fix the mounting plate 8 at the required position through the mounting hole 15, and then when the propeller body 1 needs to be tilted, run the rotating motor 2 14, and the supporting plate supports and fixes the rotating motor 2 14, so that the output end of the rotating motor 2 14 can drive the worm 13 to rotate synchronously. At this time, the worm wheel 22 meshing with the worm 13 can rotate, and the rod body 2 11 will support the worm wheel 22 and the gear 12, and facilitate the smooth rotation of the rod body 2 11 through the bearing. At the same time, the gear 1 9 meshing with the gear 2 12 will drive the rod body 10 to rotate, and the rod body 10 drives the support plate 5 and the fixing ring 4, so that the rotating ground 1 and the propeller body 1 can be tilted, and at the same time, the slider 6 and the slide groove 7 are used. The cooperation makes it convenient for the support plate 5 to move and guide on one side of the mounting plate 8. The arc-shaped design makes it convenient for the support plate 5 to rotate around the rod body 10, thereby increasing the guidance and stability of the propeller body 1 in the tilting. In the meshing of gear 19 and gear 12, the size of gear 19 is larger than that of gear 12, so that the rotation of the rotating motor 2 14 can be decelerated, so that the rotation speed transmitted to the propeller body 1 can be more convenient to adjust and control. At the same time, through the meshing of the worm 13 and the worm wheel 22, the self-locking of the propeller body 1 angle when the rotating motor 2 14 stops is realized, which is more convenient to use, different from the existing use of special self-locking components for self-locking, and also realizes the convenience of adjustment of the structure. Through the deceleration setting, the tilting angle is easier to control.

[0040] Embodiment 2:

[0041] refer to Figure 1 , Figure 2 and Figure 5A propeller tilt mechanism comprises a propeller body 1, an output end of a rotating motor 3 is fixedly sleeved with a connecting rod 2 through a coupling, an insert block 16 penetrating into the interior of the connecting rod 2 is fixedly installed at the bottom of the propeller body 1, and a connecting bolt 18 penetrating from the insert block 16 to the other side of the connecting rod 2 is provided on one side of the connecting rod 2. When the propeller tilt mechanism is used, the rotation of the propeller body 1 is realized by the operation of the rotating motor 3. When the propeller body 1 is damaged and needs maintenance and replacement, the insert block 16 of the propeller body 1 can be pulled out of the slot 17 by disassembling the connecting bolt 18, and the contact between one end of the propeller body 1 and the contact layer 21 is cancelled, so that the propeller body 1 can be conveniently disassembled for easy maintenance and replacement of the propeller body 1. The structure is easy to install and disassemble, and the propeller body 1 is convenient to use.

[0042] refer to Figure 5 A slot 17 is provided inside the connecting rod 2, and the slot 17 is used to be connected with the plug block 16. A mounting hole 15 is provided inside the mounting plate 8, and the slot 17 is used to be connected with the slot 17 to increase the connectivity between the propeller body 1 and the connecting rod 2. The mounting hole 15 is used to be installed and fixed in conjunction with the mounting plate 8.

[0043] refer to Figure 5 Side holes 19 are provided on both sides of the connecting rod 2 for installing the connecting bolts 18, and through holes 20 are provided inside the side holes 19 for passing the connecting bolts 18. The connecting bolts 18 are installed through the side holes 19 to prevent the two ends of the connecting bolts 18 from protruding from the surface of the connecting rod 2. The through holes 20 are used to pass the connecting bolts 18 through the insert block 16.

[0044] refer to Figure 5 A contact layer 21 is fixedly bonded on both sides of one end of the connecting rod 2, and an internal thread is provided inside the connecting rod 2 to match the threaded connection of the connecting bolt 18. The contact layer 21 increases the protection and anti-slip properties between the connecting rod 2 and the propeller body 1, and the internal thread facilitates the installation and connection of the connecting bolt 18 and the connecting rod 2.

[0045] Brief description of the use process: When the propeller tilt mechanism is used, the rotation of the propeller body 1 is achieved by rotating the motor 3. When the propeller body 1 is damaged and needs maintenance and replacement, the plug 16 of the propeller body 1 can be pulled out of the slot 17 by removing the connecting bolt 18, and the contact between one end of the propeller body 1 and the contact layer 21 is eliminated, so that the propeller body 1 can be conveniently disassembled for easy maintenance and replacement of the propeller body 1. The structure is easy to install and disassemble, and the propeller body 1 is convenient to use. At the same time, the contact layer 21 is squeezed during the installation of the propeller body 1 and the connecting rod 2, which facilitates the tight installation between the propeller body 1 and the connecting rod 2, and the contact layer 21 can increase the protection and anti-slip properties between the connecting rod 2 and the propeller body 1. The side hole 19 is used to cooperate with the connecting bolt 18 for installation and use, so as to avoid the two ends of the connecting bolt 18 protruding from the surface of the connecting rod 2.

[0046] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A propeller tilt mechanism, comprising a propeller body (1), characterized in that: The bottom of the propeller body (1) is provided with a rotating motor (3), the surface of the rotating motor (3) is fixedly sleeved with a fixing ring (4), both sides of the bottom of the fixing ring (4) are fixedly mounted with support plates (5), the interior of the support plate (5) is fixedly sleeved with a rod (10), both ends of the rod (10) are rotatably connected to mounting plates (8) via bearings, the surface of the rod (10) is fixedly sleeved with a gear (9), and the gear (9) is A second gear (12) is meshed on the surface, a worm wheel (22) is provided on one side of the second gear (12), a worm (13) is meshed on the surface of the worm wheel (22), the output end of the rotary motor (3) is fixedly sleeved with a connecting rod (2) via a coupling, an insert (16) penetrating into the interior of the connecting rod (2) is fixedly installed at the bottom of the propeller body (1), and a connecting bolt (18) penetrating the insert (16) to the other side of the connecting rod (2) is provided on one side of the connecting rod (2).

2. A propeller tilt mechanism according to claim 1, characterized in that: The second gear (12) and the worm wheel (22) are fixedly sleeved with a second rod body (11) inside, and both ends of the second rod body (11) are rotatably connected to each other through bearings and a mounting plate (8).

3. A propeller tilt mechanism according to claim 1, characterized in that: A second rotary motor (14) is provided between the two mounting plates (8), and the output end of the second rotary motor (14) is fixedly sleeved with the worm (13) via a coupling.

4. A propeller tilt mechanism according to claim 3, characterized in that: A supporting plate fixedly connected to the mounting plate (8) is fixedly mounted on the bottom of the second rotating motor (14).

5. A propeller tilt mechanism according to claim 1, characterized in that: A sliding block (6) is fixedly mounted on one side of the support plate (5), and a sliding groove (7) for cooperating with the sliding block (6) is provided inside the mounting plate (8), and the sliding groove (7) is designed in an arc shape.

6. A propeller tilt mechanism according to claim 1, characterized in that: A slot (17) is provided inside the connecting rod (2), and the slot (17) cooperates with the insert block (16) for mutual clamping. A mounting hole (15) is provided inside the mounting plate (8).

7. A propeller tilt mechanism according to claim 1, characterized in that: Side holes (19) for mounting the connecting bolts (18) are provided on both sides of the connecting rod (2), and through holes (20) for passing the connecting bolts (18) are provided inside the side holes (19).

8. A propeller tilt mechanism according to claim 1, characterized in that: A contact layer (21) is fixedly bonded to both sides of one end of the connecting rod (2), and an internal thread for threaded connection with a connecting bolt (18) is provided inside the connecting rod (2).

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