Shock absorber of unmanned aerial vehicle

Abstract

The technical scheme belongs to the technical field of unmanned aerial vehicle shock absorption assemblies, and particularly relates to an unmanned aerial vehicle shock absorber which comprises a disc hub module used for moving along with the output end of a power source; the damping module is arranged on the disc hub module and used for damping the disc hub module; a safety gap is formed between an inner disc hub of the disc hub module and a damping spring of the damping module during working; the disc hub module further comprises an outer disc hub, and the inner disc hub is movably connected to the outer disc hub in a clamped mode. The inner disc hub is used for driving the outer disc hub to move; a mounting groove is axially formed in the outer disc hub in a penetrating manner, a plurality of clamping grooves are formed in the mounting groove, and the clamping parts on the inner disc hub are movably clamped in the clamping grooves; the damping module further comprises a transmission disc assembly which is arranged on the inner disc hub through rivets. The damping spring movably abuts against the interior of the damping groove of the transmission disc assembly; when the transmission disc assembly moves along with the inner disc hub, the transmission disc assembly pushes the outer disc hub to move through the damping spring.

Description

Technical Field

[0001] The present technical solution relates to the technical field of shock absorber assemblies for unmanned aerial vehicles, and in particular to a shock absorber for unmanned aerial vehicles. Background Art

[0002] As drone technology becomes more mature and its functionality becomes stronger, the horsepower required for drones is getting greater and greater. This makes the loads of many miniaturized drones heavier and heavier, which will cause the original drone shock absorbers to no longer be suitable for existing drones. The main reason is that the torque of the original small torsional shock absorber is limited by the structure of the drone and cannot be made larger.

[0003] Specifically, refer to the attached manual Figure 1 The exploded diagram of the original small torsional shock absorber is shown in the figure. When it is working, the notch of the disc hub will hit the limit rivet, and the rivet cannot be too strong because of the need to rivet. When the spring torque is too large, it will cause the limit pin to break, so the conventional small shock absorber cannot handle too much torque. Utility Model Content

[0004] The purpose of this technical solution is to provide a shock absorber for a drone, which solves the problem of collision between rivets and shock absorbers when the shock absorber for a drone is working by means of the position structure of the hub module and the shock absorber module.

[0005] The purpose of this technical solution is achieved in this way:

[0006] A shock absorber for an unmanned aerial vehicle is arranged at the output end of a power source, comprising: a hub module, which is used to follow the movement of the output end of the power source; and a shock absorbing module, which is arranged on the hub module and is used to shock the hub module; wherein an inner hub of the hub module and a shock absorbing spring of the shock absorbing module have a safety gap when working.

[0007] Preferably, the hub module further comprises an outer hub, and the inner hub is movably connected to the outer hub; the inner hub is used to drive the outer hub to move.

[0008] Preferably, a mounting groove is axially penetrated through the outer hub, and a plurality of clamping grooves are provided in the mounting groove, and the plurality of clamping parts on the inner hub are movably clamped in the clamping grooves.

[0009] Preferably, the shock absorbing module also includes a transmission disc assembly, which is arranged on the inner disc hub by rivets; the shock absorbing spring movably abuts against the shock absorbing groove of the transmission disc assembly; when the transmission disc assembly follows the movement of the inner disc hub, it pushes the outer disc hub to move through the shock absorbing spring.

[0010] Preferably, a plurality of placement grooves are provided on the outer hub, and the shock absorbing springs are all arranged in the placement grooves.

[0011] Preferably, the rivets and the shock absorbing springs are circumferentially distributed beside the inner hub, and the inner diameter of the circle formed by the rivets is smaller than the inner diameter of the circle formed by the shock absorbing springs.

[0012] Preferably, the transmission disc assembly comprises a transmission disc 1 and a transmission disc 2, wherein the transmission disc 1 and the transmission disc 2 are arranged on both sides of the outer disc hub, and the transmission disc 1 and the transmission disc 2 cooperate with each other to clamp and fix the shock-absorbing spring.

[0013] Compared with the prior art, the technical solution has the following outstanding and beneficial technical effects:

[0014] 1. The disc hub module designed in this technical solution can transmit the power of the power source to the shock absorbing module, and then the shock absorbing module feeds back to the disc hub module. Through this process, the shock absorption of the disc hub module is realized. When the power source is started, the disc hub module and the shock absorbing module gradually move. During the movement, the movement path of the inner disc hub of the disc hub module and the movement path of the shock absorbing spring of the shock absorbing module will not interfere with each other.

[0015] 2. The transmission disc assembly designed in this technical solution can fix the shock-absorbing spring on the outer disc hub, and realize the transmission between the disc hub module and the shock-absorbing module through the expansion and contraction of the shock-absorbing spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the original product in the background technology.

[0017] Figure 2 This is a structural diagram of the technical solution.

[0018] Figure 3 This is an exploded diagram of this technical solution.

[0019] Figure 4 This is a cross-sectional view of the technical solution.

[0020] Figure numerals: 1. disk hub module; 2. shock absorbing module; 3. inner disk hub; 4. shock absorbing spring; 5. outer disk hub; 6. mounting groove; 7. snap-in groove; 8. snap-in part; 9. transmission disk assembly; 10. rivet; 11. shock absorbing groove; 12. placement groove; 13. transmission disk one; 14. transmission disk two; 15. notch. DETAILED DESCRIPTION

[0021] The specific implementation of the technical solution is further described in detail below with reference to the accompanying drawings.

[0022] The original UAV shock absorber is as follows Figure 1As shown, the inner hub 3 is connected to the output end of the power source, and the inner hub 3 is arranged on the outer hub 5 through the rivet 10. The inner hub 3 has a plurality of notches 15, and the rivets 10 are all arranged in the notches 15. Since a transmission disk needs to be installed on the outer side of the inner hub 3 to fix the inner hub 3, its working principle is: when the power source makes the inner hub 3 rotate, the inner hub 3 moves first, and then pushes the shock-absorbing spring 4 to make the outer hub 5 move. When the power source is started instantly, since the inner hub 3 moves suddenly while the outer hub 5 does not move, the inner hub 3 will hit the rivet 10, so that the torque of the spring cannot be made too large, affecting the overall use of the drone shock absorber.

[0023] A shock absorber for an unmanned aerial vehicle is arranged at the output end of a power source, comprising: a hub module 1, which is used to follow the movement of the output end of the power source; and a shock absorbing module 2, which is arranged on the hub module 1 and is used to shock the hub module 1; wherein an inner hub 3 of the hub module 1 and a shock absorbing spring 4 of the shock absorbing module 2 have a safety gap when working.

[0024] like Figure 2 As shown, the structure of the vibration plate of the UAV has been improved compared with the original one. The main changes are the position of the rivet 10 for fixing the inner hub 3 and the connection method between the inner hub 3 and the outer hub 5. When the inner hub 3 moves the outer hub 5, there will be no movement interference with the rivet 10. Therefore, the torque of the shock-absorbing spring 4 can be set higher to achieve an increase in the horsepower of the power source.

[0025] Specifically, the rivets 10 are arranged axially around the center of the inner hub 3, and the shock-absorbing springs 4 are arranged on the outside of the rivets 10, and the shock-absorbing springs 4 all move together to abut against the inner hub 3 and the outer hub 5, and the inner diameter of the circle formed around all the rivets 10 is smaller than the inner diameter of the circle formed around all the shock-absorbing springs 4.

[0026] Preferably, the hub module 1 further comprises an outer hub 5, and the inner hub 3 is movably connected to the outer hub 5; the inner hub 3 is used to drive the outer hub 5 to move.

[0027] like Figure 3 As shown, the center of the inner hub 3 has a socket connected to the output end of the power source, the inner hub 3 is movably connected to the center of the outer hub 5, and the inner hub 3 and the outer hub 5 are detachably connected, and the inner hub 3 is fixed in the outer hub 5 through the transmission disc assembly 9.

[0028] Preferably, a mounting groove 6 is axially penetrated through the outer hub 5 , and a plurality of clamping grooves 7 are provided in the mounting groove 6 , and the plurality of clamping portions 8 on the inner hub 3 are movably clamped in the clamping grooves 7 .

[0029] like Figure 4As shown, the shapes of the inner disk hub 3 and the mounting groove 6 are both five-pointed star-shaped. The five-pointed star shape is to enable the inner disk hub 3 and the outer disk hub 5 to be tightly clamped. Similarly, other shapes are also within the protection scope of the present application. The clamping groove 7 and the clamping portion 8 are respectively protruded outwardly on the mounting groove 6 and the inner disk hub 3.

[0030] Furthermore, the outer edge of the inner disk hub 3 has a certain shock-absorbing distance from the side wall of the mounting groove 6. Therefore, its working principle is that when the power source is started, the inner disk hub 3 makes the transmission disk assembly 9 move synchronously through the rivet 10, and the movement of the transmission disk assembly 9 pushes the shock-absorbing spring 4 to move. At this time, the shock-absorbing spring 4 will buffer the movement of the transmission disk assembly 9 until the outer edge of the inner disk hub 3 abuts against the outer disk hub 5 and pushes the outer disk hub 5 to move.

[0031] Preferably, the shock absorbing module 2 also includes a transmission disk assembly 9, which is arranged on the inner disk hub 3 through a rivet 10; the shock absorbing spring 4 is movably abutted in the shock absorbing groove 11 of the transmission disk assembly 9; when the transmission disk assembly 9 follows the movement of the inner disk hub 3, it pushes the outer disk hub 5 to move through the shock absorbing spring 4, and a plurality of placement grooves 12 are opened on the outer disk hub 5, and the shock absorbing springs 4 are all arranged in the placement grooves 12.

[0032] like Figure 2 and Figure 3 As shown, the transmission disc assembly 9 is used to fix the inner disc hub 3 and move synchronously with the inner disc hub 3, and is also used to fix the shock-absorbing spring 4. The shock-absorbing groove 11 opened on the transmission disc assembly 9 has a protective function. Specifically, the edge of the shock-absorbing groove 11 changes in a step-like manner. The upper shock-absorbing groove 11 can cover the shock-absorbing spring 4, and the shock-absorbing grooves 11 at the corners and the lower part can abut against the shock-absorbing spring 4. Therefore, when the transmission disc assembly 9 moves with the inner disc hub 3, it can push the shock-absorbing spring 4 to move, so as to achieve shock absorption of the outer disc hub 5.

[0033] Preferably, the transmission disc assembly 9 includes a transmission disc 13 and a transmission disc 14 , and the transmission disc 13 and the transmission disc 14 are arranged on both sides of the outer disc hub 5 , and the transmission disc 13 and the transmission disc 14 cooperate with each other to clamp and fix the shock absorbing spring 4 .

[0034] like Figure 3 As shown, the rivet 10 passes through the transmission disc 2 14, the screw hole of the inner hub 3 and the transmission disc 1 13 in sequence. Therefore, when the inner hub 3 moves, the transmission disc 1 13 and the transmission disc 2 14 follow the movement. After the rivet 10 fixes the inner hub 3, the shock-absorbing spring 4 is also fixed by the transmission disc 1 13 and the transmission disc 2 14 as well as the outer hub 5.

[0035] The above shows and describes the basic principle and main features of the technical solution and the advantages of the technical solution. The technicians in this industry should understand that the technical solution is not limited by the above embodiments. The above embodiments and the description are only to illustrate the principle of the technical solution. Without departing from the spirit and scope of the technical solution, the technical solution will have various changes and improvements, which fall within the scope of the technical solution to be protected. The scope of protection claimed by the technical solution is defined by the attached claims and their equivalents.

Claims

1. A shock absorber for an unmanned aerial vehicle, which is arranged at the output end of a power source, characterized in that: include: A hub module (1) is used to follow the movement of the output end of the power source; as well as A shock absorbing module (2), which is arranged on the hub module (1) and is used to absorb shock from the hub module (1); The inner hub (3) of the hub module (1) and the shock absorbing spring (4) of the shock absorbing module (2) have a safety gap during operation.

2. The shock absorber for unmanned aerial vehicle according to claim 1, characterized in that: The hub module (1) further comprises an outer hub (5), and the inner hub (3) is movably clamped on the outer hub (5); The inner hub (3) is used to drive the outer hub (5) to move.

3. The shock absorber for unmanned aerial vehicle according to claim 2, characterized in that: The outer hub (5) is axially penetrated with a mounting groove (6), the mounting groove (6) has a plurality of clamping grooves (7), and the plurality of clamping parts (8) on the inner hub (3) are all movably clamped in the clamping grooves (7).

4. The shock absorber for unmanned aerial vehicle according to claim 3, characterized in that: The shock absorbing module (2) further comprises a transmission disc assembly (9), which is arranged on the inner disc hub (3) via rivets (10); The shock absorbing spring (4) is movably abutted against the shock absorbing groove (11) of the transmission disc assembly (9); When the transmission disc assembly (9) moves following the inner disc hub (3), it pushes the outer disc hub (5) to move via the damping spring (4).

5. The shock absorber for unmanned aerial vehicle according to claim 4, characterized in that: The outer hub (5) is provided with a plurality of placement grooves (12), and the shock absorbing springs (4) are all arranged in the placement grooves (12).

6. The shock absorber for unmanned aerial vehicle according to claim 5, characterized in that: The rivets (10) and the shock absorbing springs (4) are both circumferentially distributed beside the inner hub (3), and the inner diameter of the circle formed around the rivets (10) is smaller than the inner diameter of the circle formed around the shock absorbing springs (4).

7. The shock absorber for unmanned aerial vehicle according to claim 6, characterized in that: The transmission disc assembly (9) comprises a transmission disc one (13) and a transmission disc two (14), wherein the transmission disc one (13) and the transmission disc two (14) are arranged on both sides of the outer disc hub (5), and the transmission disc one (13) and the transmission disc two (14) cooperate with each other to clamp and fix the shock absorbing spring (4).

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