High-heat-dissipation centrifugal clutch of unmanned aerial vehicle

Abstract

The utility model discloses a high heat dissipation centrifugal clutch of an unmanned aerial vehicle, which belongs to the technical field of unmanned aerial vehicles and comprises a clutch shell, a clutch driving shaft is inserted in the middle of the clutch shell, and a plurality of equidistant annular fins are fixedly arranged on the outer wall of the circumference of the clutch shell. And a plurality of notches with equal angles are formed in the outer wall of the circumference of each annular fin. The clutch shell is made of the aluminum alloy material, the heat dissipation effect of the centrifugal device is effectively enhanced, the circumferential outer wall of each annular fin is provided with the notches with the same angle, the heat dissipation surface area of the clutch shell is greatly increased, the outer wall of the other end of the clutch shell is provided with the heat dissipation holes and the lightening holes, and the heat dissipation effect of the centrifugal device is improved. The weight of the clutch shell can be reduced, ventilation and heat dissipation are facilitated, compared with a traditional centrifugal clutch, the clutch shell prolongs the service life of the clutch, the stability of the clutch is improved, and torque transmitted by the clutch is kept efficient and stable.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and in particular to a high-heat-dissipation centrifugal clutch for UAVs. Background Technology

[0002] In gasoline-powered UAVs, the clutch is a core transmission component used to connect or disconnect the engine and propeller, enabling precise control of power transmission. Traditional clutches are belt-driven clutches, which are prone to failure, inconvenient to maintain, experience high wear, and have a short service life, significantly impacting the UAV's flight performance. Existing helicopter clutches are divided into belt-driven clutches and centrifugal clutches. Most gasoline-powered UAVs use centrifugal clutches. Centrifugal clutches do not require external control mechanisms, relying on centrifugal force for automatic control. Their overload slippage characteristics also provide protection, preventing engine damage due to overload or rotor over-spinning, thus improving flight safety.

[0003] Traditional centrifugal clutches generate centrifugal force by rotating the driving component, which then throws a centrifugal block. The thrown centrifugal block presses against the inner wall of the driven component (clutch housing), and the friction forces it into motion to transmit torque. However, the friction between the centrifugal block and the inner wall of the driven component (clutch housing) often causes overheating, which accelerates the wear of the centrifugal block and reduces the torque transmitted by the clutch. In addition, the return spring on the centrifugal block is prone to failure. This type of clutch has poor stability and a short lifespan. Therefore, a high-heat-dissipation centrifugal clutch for UAVs is proposed to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high-heat-dissipation centrifugal clutch for unmanned aerial vehicles.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-heat-dissipation centrifugal clutch for unmanned aerial vehicles (UAVs) includes a clutch housing, a clutch drive shaft inserted in the middle of the clutch housing, and multiple equally spaced annular fins fixedly arranged on the outer circumference of the clutch housing. Each annular fin has multiple notches at equal angles on its outer circumference. A clutch central shaft is sleeved at one end of the clutch drive shaft, and three centrifugal blocks are snapped onto the other end of the clutch drive shaft. The centrifugal blocks are T-shaped with an arc-shaped outer surface. Triangular support blocks are fixedly arranged at the included angles on both sides of the centrifugal blocks. A return spring is arranged between the opposite ends of every two adjacent centrifugal blocks.

[0007] Preferably, a bearing is sleeved between the clutch housing and the clutch drive shaft.

[0008] Preferably, the clutch housing is made of aluminum alloy.

[0009] Preferably, the clutch central shaft is located outside one end of the three centrifugal blocks, and the three centrifugal blocks are located inside the clutch housing.

[0010] Preferably, the outer wall of the other end of the clutch housing is provided with a plurality of heat dissipation holes and weight reduction holes, and the plurality of heat dissipation holes and weight reduction holes are distributed alternately, and the plurality of heat dissipation holes and weight reduction holes are distributed at equal angles with the clutch drive shaft as the center.

[0011] Preferably, a slot is provided on the outer wall of the other end of each centrifuge block.

[0012] Preferably, the triangular support block has a hanging hole in the middle, and the hanging hole is connected to one of the hooks of the reset spring.

[0013] The beneficial effects of this utility model are as follows:

[0014] This invention proposes a high-heat-dissipation centrifugal clutch for unmanned aerial vehicles (UAVs). The clutch housing is made of aluminum alloy, effectively enhancing the heat dissipation of the centrifuge. Multiple equally spaced annular fins are fixed to the outer circumference of the clutch housing, with multiple equally angled notches on the outer circumference of each fin, significantly increasing the heat dissipation surface area of ​​the clutch housing. Furthermore, multiple heat dissipation holes and weight-reduction holes are provided on the other end of the outer wall of the clutch housing, reducing its weight and aiding ventilation and heat dissipation. Compared to traditional centrifugal clutches, this clutch housing enhances clutch lifespan and stability, ensuring efficient and stable torque transmission.

[0015] This utility model proposes a high-heat-dissipation centrifugal clutch for drones. By setting a return spring between the opposite ends of every two adjacent centrifugal blocks, it not only helps to reduce impact but also optimizes the overall design of the clutch. Triangular support blocks are fixedly set at the included angles on both sides of the centrifugal blocks, which not only enhances the pressure-bearing stability of the centrifugal blocks but also facilitates the installation of the return springs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a high-heat-dissipation centrifugal clutch for unmanned aerial vehicles (UAVs) proposed in this utility model.

[0017] Figure 2 This is a rear view schematic diagram of the drive shaft of a high-heat-dissipation centrifugal clutch for unmanned aerial vehicles (UAVs) proposed in this utility model.

[0018] Figure 3 This is a schematic diagram of the structure of a high-heat-dissipation centrifugal clutch housing for a drone proposed in this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of a centrifugal clutch centrifugal block for a drone with high heat dissipation proposed in this utility model;

[0020] Figure 5 This is a rear view schematic diagram of the centrifugal block of a high-heat-dissipation centrifugal clutch for unmanned aerial vehicles (UAVs) proposed in this utility model.

[0021] In the diagram: 1. Clutch housing, 2. Annular fins, 3. Notch, 4. Clutch central shaft, 5. Clutch drive shaft, 6. Bearing, 7. Centrifugal block, 8. Triangular support block, 9. Hanging hole, 10. Return spring, 11. Slot, 12. Heat dissipation hole, 13. Weight reduction hole. Detailed Implementation

[0022] Reference Figure 1-5 A high-heat-dissipation centrifugal clutch for unmanned aerial vehicles includes a clutch housing 1, a clutch drive shaft 5 inserted in the middle of the clutch housing 1, multiple equally spaced annular fins 2 fixedly arranged on the outer circumference of the clutch housing 1, and multiple equally angled notches 3 opened on the outer circumference of each annular fin 2, a clutch central shaft 4 sleeved at one end of the clutch drive shaft 5, and three centrifugal blocks 7 clamped at the other end of the clutch drive shaft 5, the centrifugal blocks 7 being T-shaped and having an arc-shaped outer surface, and triangular support blocks 8 fixedly arranged at the included angles on both sides of the centrifugal blocks 7, and a return spring 10 arranged between the opposite ends of every two adjacent centrifugal blocks 7.

[0023] In this utility model, a bearing 6 is sleeved between the clutch housing 1 and the clutch drive shaft 5 in the middle;

[0024] Clutch housing 1 is made of aluminum alloy.

[0025] The clutch shaft 4 is located on the outside of one end of the three centrifugal blocks 7, and the three centrifugal blocks 7 are located inside the clutch housing 1;

[0026] The outer wall of the other end of the clutch housing 1 is provided with a plurality of heat dissipation holes 12 and weight reduction holes 13, and the plurality of heat dissipation holes 12 and weight reduction holes 13 are staggered and distributed at equal angles with the clutch drive shaft 5 as the center.

[0027] Each centrifugal block 7 has a slot 11 on the outer wall of the other end;

[0028] The triangular support block 8 has a hanging hole 9 in the middle, and the hanging hole 9 is connected to one of the hooks of the return spring 10.

[0029] Working principle: The clutch housing 1 is made of aluminum alloy, which effectively enhances the heat dissipation of the centrifuge. Multiple annular fins 2 are fixedly arranged on the outer circumference of the clutch housing 1. Each annular fin 2 has multiple notches 3 at equal angles on its outer circumference, which greatly increases the heat dissipation surface area of ​​the clutch housing 1. Multiple heat dissipation holes 12 and weight reduction holes 13 are opened on the outer wall of the other end of the clutch housing 1, which can reduce the weight of the clutch housing 1 and also help with ventilation and heat dissipation. Compared with traditional centrifugal clutches, this clutch housing 1 enhances the clutch life and stability, and keeps the torque transmitted by the clutch efficient and stable.

[0030] By providing a return spring 10 between the opposite ends of every two adjacent centrifugal blocks 7, not only is the impact reduced, but the overall design of the clutch is also optimized. Triangular support blocks 8 are fixedly provided at the included angles on both sides of the centrifugal blocks 7, which not only enhances the pressure-bearing stability of the centrifugal blocks 7, but also facilitates the installation of the return spring 10.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-heat-dissipation centrifugal clutch for a drone, comprising a clutch housing (1) in which a clutch driving shaft (5) is inserted, characterized in that, The clutch shell (1) is provided with a plurality of equidistant annular fins (2) on the circumferential outer wall, and a plurality of equi-angle notches (3) are formed on the circumferential outer wall of each annular fin (2), the clutch driving shaft (5) is provided with a clutch shaft (4) at one end, three centrifugal blocks (7) are connected to the other end of the clutch driving shaft (5), the centrifugal block (7) is T-shaped, the outer side of the centrifugal block (7) is arc-shaped, and a triangular supporting block (8) is arranged at the angle between the two sides of the centrifugal block (7), and a reset spring (10) is arranged between the opposite ends of each two adjacent centrifugal blocks (7).

2. The high heat dissipation centrifugal clutch of claim 1, wherein, The bearing (6) is arranged between the clutch shell (1) and the clutch driving shaft (5).

3. The high heat dissipation centrifugal clutch of claim 1, wherein, The clutch shell (1) is made of aluminum alloy material.

4. The high heat dissipation centrifugal clutch of claim 1, wherein, The clutch shaft (4) is located outside one end of the three centrifugal blocks (7), and the three centrifugal blocks (7) are located inside the clutch shell (1).

5. The high heat dissipation centrifugal clutch of claim 3, wherein, A plurality of heat dissipation holes (12) and weight reduction holes (13) are formed on the outer wall of the other end of the clutch shell (1), the plurality of heat dissipation holes (12) and the plurality of weight reduction holes (13) are distributed alternately, and the plurality of heat dissipation holes (12) and the plurality of weight reduction holes (13) are distributed at equal angles with the clutch driving shaft (5) as the center.

6. The high heat dissipation centrifugal clutch of claim 1, wherein, A clamping groove (11) is formed on the outer wall of the other end of each centrifugal block (7).

7. The high heat dissipation centrifugal clutch of claim 1, wherein, The triangular supporting block (8) is provided with a hanging hole (9) in the middle, and one of the hooks of the reset spring (10) is hung on the hanging hole (9).

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