Unmanned aerial vehicle ejection driving system

Abstract

The utility model provides an unmanned aerial vehicle ejection driving system which comprises an ejection track, a transmission belt, an ejection driving device and an ejection trolley, the ejection trolley is used for supporting an unmanned aerial vehicle, the ejection track is used for supporting the ejection trolley, one end of the transmission belt is connected with the ejection trolley, and the other end of the transmission belt is connected with the ejection driving device. The ejection driving device is supported below the ejection track; the ejection driving device comprises a power assembly, an ejection clutch and an ejection winding disc, the ejection winding disc is installed on the ejection clutch, and the power assembly is configured to be capable of being connected with the ejection clutch at the set rotating speed; and the other end of the transmission belt is wound on the ejection winding disc. The power assembly is connected with the ejection clutch when reaching the set rotating speed, the high initial rotating speed can be provided for the ejection clutch, the ejection winding disc installed on the ejection clutch can rotate rapidly and drive the transmission belt to be rapidly wound, the ejection trolley connected to one end of the transmission belt can be rapidly started and accelerated, and rapid acceleration of the unmanned aerial vehicle is achieved. The time for the unmanned aerial vehicle to respond to the takeoff instruction is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicle auxiliary equipment, in particular to a unmanned aerial vehicle ejection drive system. Background Art

[0002] A drone is an aircraft primarily controlled by radio remote control or its own program. Compared to manned aircraft, drones are smaller, cheaper, easier to use, have lower operational requirements, and exhibit greater battlefield survivability, making them a popular choice among militaries worldwide. Drones are gaining increasing attention in various countries, playing a significant role in both military and civilian applications. They are widely used in aerial reconnaissance, environmental monitoring, communications, anti-submarine warfare, and electronic jamming. Research on drones has increasingly revealed that the launch of a drone directly impacts the drone system's battlefield survivability, reusability, regional adaptability, and operational flexibility. Drone ejection systems provide additional propulsion during takeoff, enabling a more stable and safe takeoff.

[0003] Currently, to achieve higher speeds, drones are typically equipped with longer guide rails, extending the drone's acceleration path to achieve sufficient acceleration distance and time, thereby increasing the drone's takeoff speed. However, this acceleration method makes the drone's drive unit bulky, making it difficult to carry and move. Furthermore, the drone cannot quickly reach catapult launch conditions, making it unable to quickly respond to takeoff commands. Therefore, a drone drive system is needed that enables drones to quickly respond to takeoff commands. Utility Model Content

[0004] One of the purposes of the present invention is to provide a UAV ejection drive system to solve the problem in the prior art that the ejection take-off conditions cannot be reached quickly, making it unable to quickly respond to take-off commands.

[0005] In order to achieve the above purpose, the technical solutions adopted by this utility model are as follows:

[0006] A UAV ejection drive system, comprising:

[0007] An ejection track, a transmission belt, an ejection drive device, and an ejection trolley, wherein the ejection trolley is used to load a drone, the ejection track is used to support the ejection trolley, one end of the transmission belt is connected to the ejection trolley, and the other end is connected to the ejection drive device, and the transmission belt is at least partially arranged along the length direction of the ejection track; the ejection drive device is located below the ejection track and is used to drive the transmission belt to pull the ejection trolley to slide along the ejection track;

[0008] The ejection drive device includes a power assembly, an ejection clutch and an ejection coil, wherein the ejection coil is mounted on the ejection clutch;

[0009] The power assembly is configured such that when its rotational speed reaches a first rotational speed, the ejection clutch engages, so that the power assembly engages with the ejection disk, thereby enabling the power assembly to drive the ejection disk to rotate through the ejection clutch; the other end of the transmission belt is wound around the ejection disk.

[0010] According to the above technical means, when the power assembly reaches the first speed, it is connected to the ejection clutch, which can provide a high initial speed for the ejection clutch. The ejection winding disk installed on the ejection clutch can rotate rapidly, driving the transmission belt to wind rapidly, so that the ejection cart connected to one end of the transmission belt can start and accelerate quickly, thereby realizing rapid acceleration of the UAV and greatly shortening the time for the UAV to respond to the take-off command.

[0011] At the same time, the ejection drive system of the present invention has a compact structure and does not require the length of the ejection track to be lengthened, so the entire system is highly convenient. While meeting the rapid take-off requirements of the UAV, it greatly improves the applicability and practicality of the ejection drive system.

[0012] Furthermore, the power assembly includes a drive motor, an inertia wheel and a transmission shaft; the inertia wheel is installed on the drive motor so that the drive motor can drive the inertia wheel to rotate; one end of the transmission shaft is connected to the inertia wheel, and the other end is connected to the ejection clutch, and when the inertia wheel reaches the first speed, the ejection clutch engages.

[0013] According to the above technical means, the drive motor drives the inertia wheel to rotate, so that the inertia wheel can efficiently receive power from the drive motor, and the inertia wheel can engage the ejection clutch when reaching a first speed, and can quickly transmit the power from the drive motor to the ejection clutch, providing a high initial speed for the ejection clutch.

[0014] Furthermore, it also includes a drive bracket, a first shaft seat and a second shaft seat, the first shaft seat and the second shaft seat are mounted on the drive bracket, and the inertia wheel is rotatably mounted between the first shaft seat and the second shaft seat; the drive motor is mounted on a side of the first shaft seat away from the inertia wheel; and the ejection clutch is located on a side of the second shaft seat away from the inertia wheel.

[0015] According to the above technical means, the drive bracket provides stable support for the first shaft seat and the second shaft seat, and further stably supports the drive motor, the inertia wheel and the ejection clutch, so that the drive motor, the inertia wheel and the ejection clutch reduce shaking during operation, thereby improving the stability and reliability of the drive motor, the inertia wheel and the ejection clutch during operation.

[0016] Furthermore, the ejection drive device also includes a brake disc and an ejection brake caliper. The brake disc is installed on the side of the ejection clutch close to the second axle seat, and the ejection brake caliper is installed on the second axle seat. The ejection brake caliper is configured to clamp the brake disc to decelerate or stop the ejection clutch.

[0017] According to the above technical means, starting the ejection brake caliper to clamp the brake disc can slow down or stop the ejection clutch, so as to accurately control the ejection clutch and make it slow down or stop rotating as needed, thereby improving the flexibility and practicality of the use of the ejection clutch.

[0018] Furthermore, the ejection drive device also includes a rotating magnetic grid and a reading head. The rotating magnetic grid is installed on the side of the ejection clutch away from the second shaft seat. The reading head is installed on the drive bracket and is controlled by the ejection clutch. The rotating magnetic grid and the reading head are used to detect the rotational speed of the ejection clutch. The ejection clutch is configured to disengage when its rotational speed reaches a second rotational speed.

[0019] According to the above technical means, the rotating magnetic grid and the reading head cooperate with each other to accurately record and read the rotational speed information of the ejection clutch, so as to monitor the rotational state of the ejection clutch in real time, ensure that the ejection clutch can be disengaged when the second speed is reached, and improve the control accuracy of the ejection drive device.

[0020] Furthermore, it also includes a track bracket, one side of which is mounted on the driving bracket, and the other side of which is rotatably mounted on the ejection track through a connecting assembly.

[0021] According to the above technical means, the track bracket connects the drive bracket and the ejection track, so that the ejection track and the ejection drive device installed on the drive bracket are integrated, ensuring the effectiveness of the ejection drive device; at the same time, the ejection track and the track bracket can rotate relative to each other, so that the ejection track can adjust the installation angle as needed to adapt to different ejection requirements, thereby improving the versatility of the ejection drive system.

[0022] Furthermore, the connecting assembly includes a first hinge seat and a second hinge seat that can rotate relative to each other, the first hinge seat is installed on the track bracket, and the second hinge seat is installed on the ejection track. The first hinge seat and the second hinge seat cooperate with each other so that the ejection track can be rotatably mounted on the track bracket.

[0023] According to the above technical means, the mutual cooperation between the first articulated seat and the second articulated seat enables the ejection track to rotate relative to the track bracket, thereby improving the flexibility of use of the ejection track and the track bracket; at the same time, the cooperation between the first articulated seat and the second articulated seat can maintain a stable and effective connection, thereby improving the reliability and adaptability between the ejection track and the track bracket.

[0024] Furthermore, a first guide wheel is provided on the ejection track, a second guide wheel is provided on the track bracket, and a third guide wheel is provided on the driving bracket. The other end of the transmission belt is wound around the first guide wheel, the second guide wheel and the third guide wheel in sequence and then wound around the ejection reel.

[0025] According to the above technical means, the mutual cooperation between the first guide wheel, the second guide wheel and the third guide wheel can guide the transmission belt to move along a predetermined path, ensure that the transmission belt can run stably, and improve the reliability and efficiency of the transmission belt operation; at the same time, the transmission belt is guided by the first guide wheel, the second guide wheel and the third guide wheel, which can reduce the friction resistance of the transmission belt during operation, avoid damage to the transmission belt due to overcoming the friction resistance, and ensure the service life of the transmission belt.

[0026] Furthermore, a braking device is provided on the ejection track, and the braking device is connected to the ejection trolley and is used to brake the ejection trolley after the UAV takes off.

[0027] According to the above technical means, after the UAV takes off and leaves the ejection cart, the braking device can quickly and accurately brake the ejection cart, making the UAV ejection and braking process automated and efficient.

[0028] Furthermore, it also includes a mobile platform, and the ejection drive device is installed on the mobile platform.

[0029] According to the above technical means, the ejection drive device can be quickly moved to a specified position by moving the mobile platform, thereby improving the flexibility and convenience of using the ejection drive device.

[0030] The beneficial effects of the present invention are:

[0031] 1. When the power assembly reaches a set speed, it is connected to the ejection clutch, providing a high initial speed for the ejection clutch. The ejection reel mounted on the ejection clutch can then rotate rapidly, driving the transmission belt to wind rapidly. This allows the ejection trolley connected to one end of the transmission belt to start and accelerate quickly, thereby achieving rapid acceleration of the UAV and significantly shortening the time it takes for the UAV to respond to takeoff commands.

[0032] 2. The ejection drive system of the present invention has a compact structure and does not require the length of the ejection track to be lengthened. Therefore, the entire system is highly convenient. While meeting the requirement of rapid take-off of the UAV, the applicability and practicality of the ejection drive system are greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0034] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0035] Figure 2 This is a schematic diagram of the structure of the ejection drive device of the utility model installed on the drive bracket;

[0036] Figure 3 This is one of the exploded views of the ejection drive device and the drive bracket of the utility model;

[0037] Figure 4 This is the second exploded view of the partial structure of the ejection drive device and the drive bracket of the utility model;

[0038] Figure 5 It is a partial structural schematic diagram of the track bracket of the utility model installed on the ejection track.

[0039] in,

[0040] 100, ejection track; 110, first guide wheel; 200, transmission belt; 300, ejection drive device; 310, power assembly; 311, drive motor; 312, inertia wheel; 313, transmission shaft; 320, ejection clutch; 330, ejection winding disc; 341, brake disc; 342, ejection brake caliper; 351, rotating magnetic grid; 352, reading head; 400, ejection trolley; 510, drive bracket; 520, first axle seat; 530, second axle seat; 540, track bracket; 550, connecting assembly; 560, second guide wheel; 570, third guide wheel; 600, braking device; 700, mobile platform. DETAILED DESCRIPTION

[0041] The following will describe the embodiments of the present invention with reference to the accompanying drawings and preferred embodiments. The accompanying drawings are for illustrative purposes only and are not to be construed as limiting the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for the purpose of illustrating the present invention and are not intended to limit the scope of protection of the present invention.

[0042] It should be noted that the illustrations provided in the following embodiments are merely schematic illustrations of the basic concept of the present invention. Therefore, the illustrations only show components related to the present invention and are not drawn according to the number, shape, and size of components in actual implementation. In actual implementation, the type, quantity, and proportion of each component may be changed arbitrarily, and the component layout may also be more complex.

[0043] This embodiment provides Figures 1 to 5 The UAV ejection drive system shown includes:

[0044] The ejection track 100, the transmission belt 200, the ejection drive device 300, and the ejection cart 400 are used to load the UAV. The ejection track 100 is used to support the ejection cart 400. One end of the transmission belt 200 is connected to the ejection cart 400, and the other end is connected to the ejection drive device 300. The transmission belt 200 is at least partially arranged along the length of the ejection track 100. The ejection drive device 300 is located below the ejection track 100 and is used to drive the transmission belt 200 to pull the ejection cart 400 to slide along the ejection track 100.

[0045] The ejection drive device 300 includes a power assembly 310, an ejection clutch 320 and an ejection disk 330. The ejection disk 330 is mounted on the ejection clutch 320. The power assembly 310 is configured such that when its rotational speed reaches a first rotational speed, the ejection clutch 320 engages, so that the power assembly 310 engages with the ejection disk 330, thereby enabling the power assembly 310 to drive the ejection disk 330 to rotate through the ejection clutch 320. The other end of the transmission belt 200 is wound around the ejection disk 330.

[0046] In this embodiment, when it is necessary to launch a drone, the power assembly 310 is started, and when it quickly reaches a first rotation speed, it is connected to the ejection clutch 320, so that the ejection clutch 320 can rotate at a high starting speed, thereby causing the ejection winding disc 330 installed on the ejection clutch 320 to quickly drive the transmission belt 200 to wind, and further drive the ejection trolley 400 to quickly glide and accelerate on the ejection track 100, so that the drone located on the ejection trolley 400 reaches the take-off speed and takes off.

[0047] In this embodiment, when the power assembly 310 reaches the first speed, it is connected to the ejection clutch 320, which can provide a high initial speed for the ejection clutch 320. The ejection winding disk 330 installed on the ejection clutch 320 can rotate quickly, driving the transmission belt 200 to wind quickly, so that the ejection cart 400 connected to one end of the transmission belt 200 can start and accelerate quickly, thereby realizing rapid acceleration of the UAV and greatly shortening the time for the UAV to respond to the take-off command.

[0048] At the same time, the ejection drive system of the present invention has a compact structure and does not require the length of the ejection track 100 to be lengthened, so the entire system is highly convenient. While meeting the rapid take-off requirements of the drone, it greatly improves the applicability and practicality of the ejection drive system.

[0049] like Figures 3 and 4 As shown, in this embodiment, the power assembly 310 includes a drive motor 311, an inertia wheel 312, and a transmission shaft 313. The inertia wheel 312 is mounted on the drive motor 311 so that the drive motor 311 can drive the inertia wheel 312 to rotate. One end of the transmission shaft 313 is connected to the inertia wheel 312, and the other end is connected to the ejection clutch 320. When the inertia wheel 312 reaches a first speed, the ejection clutch 320 engages. The drive motor 311 drives the inertia wheel 312 to rotate, allowing the inertia wheel 312 to efficiently receive power from the drive motor 311. The inertia wheel 312 can engage the ejection clutch 320 when the first speed is reached, and can quickly transmit the power from the drive motor 311 to the ejection clutch 320, providing a high initial speed for the ejection clutch 320.

[0050] Preferably, a friction plate and a piston are provided on the ejection clutch 320 . When the inertia wheel 312 drives the transmission shaft 313 to reach a set speed, the piston pushes the friction plate to press the transmission shaft 313 , thereby connecting the transmission shaft 313 with the ejection clutch 320 .

[0051] like Figure 3 As shown, this embodiment further includes a drive bracket 510, a first shaft seat 520, and a second shaft seat 530. The first shaft seat 520 and the second shaft seat 530 are mounted on the drive bracket 510, and the inertia wheel 312 is rotatably mounted between the first shaft seat 520 and the second shaft seat 530. The drive motor 311 is mounted on the side of the first shaft seat 520 away from the inertia wheel 312. The ejection clutch 320 is located on the side of the second shaft seat 530 away from the inertia wheel 312. The drive bracket 510 provides stable support for the first shaft seat 520 and the second shaft seat 530, and further stably supports the drive motor 311, the inertia wheel 312, and the ejection clutch 320, thereby reducing shaking of the drive motor 311, the inertia wheel 312, and the ejection clutch 320 during operation, thereby improving the stability and reliability of the drive motor 311, the inertia wheel 312, and the ejection clutch 320 during operation.

[0052] like Figure 4 As shown, in this embodiment, the ejection drive device 300 further includes a brake disc 341 and an ejection brake caliper 342. The brake disc 341 is mounted on the side of the ejection clutch 320 close to the second shaft seat 530, and the ejection brake caliper 342 is mounted on the second shaft seat 530. The ejection brake caliper 342 is configured to clamp the brake disc 341 to decelerate or stop the ejection clutch 320. Activating the ejection brake caliper 342 to clamp the brake disc 341 can decelerate or stop the ejection clutch 320, thereby precisely controlling the ejection clutch 320 so that the ejection clutch 320 can decelerate or stop rotation as required, thereby improving the flexibility and practicality of the use of the ejection clutch 320.

[0053] like Figure 3 As shown, in this embodiment, the ejection drive device 300 further includes a rotating magnetic grid 351 and a reading head 352. The rotating magnetic grid 351 is mounted on a side of the ejection clutch 320 away from the second shaft seat 530. The reading head 352 is mounted on the drive bracket 510 and is controllably connected to the ejection clutch 320. The rotating magnetic grid 351 and the reading head 352 are used to detect the rotational speed of the ejection clutch 320. The ejection clutch 320 is configured to disengage the ejection clutch 320 when its rotational speed reaches a second rotational speed. The rotating magnetic grid 351 and the reading head 352 cooperate with each other to accurately record and read the rotational speed information of the ejection clutch 320, so that the reading head 352, which is controllably connected to the ejection clutch 320, can monitor the rotational state of the ejection clutch 320 in real time, ensuring that the ejection clutch 320 is disengaged when the second rotational speed is reached, thereby improving the control accuracy of the ejection drive device 300.

[0054] As Figure 5 shown, in the embodiment, a track support 540 is further included, one side of the track support 540 is mounted on the driving support 510, and the opposite side is rotatably mounted on the ejection track 100 through a connecting assembly 550. The track support 540 connects the driving support 510 and the ejection track 100, so that the ejection track 100 has integrity with the ejection driving device 300 mounted on the driving support 510, ensuring the effectiveness of the ejection driving device 300 driving; at the same time, the ejection track 100 and the track support 540 can rotate relative to each other, so that the ejection track 100 can adjust the installation angle according to the needs to adapt to different ejection needs, improving the versatility of the ejection driving system.

[0055] As Figure 5 shown, in the embodiment, the connecting assembly 550 includes a first hinged seat and a second hinged seat that can rotate relative to each other, the first hinged seat is mounted on the track support 540, and the second hinged seat is mounted on the ejection track 100, the first hinged seat and the second hinged seat cooperate with each other to rotatably mount the ejection track 100 on the track support 540. The cooperation of the first hinged seat and the second hinged seat can make the ejection track 100 rotate relative to the track support 540, improving the flexibility of the ejection track 100 and the track support 540 in use; at the same time, the cooperation of the first hinged seat and the second hinged seat can keep stable and effective connection, improving the reliability and adaptability between the ejection track 100 and the track support 540.

[0056] As Figure 1 and Figure 5 shown, in the embodiment, the ejection track 100 is provided with a first guide wheel 110, the track support 540 is provided with a second guide wheel 560, and the driving support 510 is provided with a third guide wheel 570, and the other end of the transmission belt 200 is wound on the ejection winding disc 330 after being sequentially wound on the first guide wheel 110, the second guide wheel 560 and the third guide wheel 570. The cooperation of the first guide wheel 110, the second guide wheel 560 and the third guide wheel 570 can guide the transmission belt 200 to move along the predetermined path, ensuring that the transmission belt 200 can run stably, improving the reliability and efficiency of the transmission belt 200 running; at the same time, the transmission belt 200 is guided by the first guide wheel 110, the second guide wheel 560 and the third guide wheel 570, which can reduce the frictional resistance in the running process of the transmission belt 200, avoid damage of the transmission belt 200 due to overcoming the frictional resistance, and ensure the service life of the transmission belt 200.

[0057] Preferably, the first guide wheel 110 is arranged at the take-off end of the ejection track 100.

[0058] In other embodiments, the first guide wheel 110, the second guide wheel 560 and the third guide wheel 570 can each be provided with a plurality of guide wheels.

[0059] like Figure 1 As shown, in this embodiment, the ejection track 100 is further provided with a braking device 600, which is connected to the ejection trolley 400 and is used to brake the ejection trolley 400 after the drone takes off. After the drone takes off and leaves the ejection trolley 400, the braking device 600 can quickly and accurately brake the ejection trolley 400, making the ejection and braking process of the drone automated and efficient.

[0060] Preferably, in this embodiment, the ejection cart 400 includes a body, a bracket and a connecting piece, and the body is slidably mounted on the ejection track 100; the bracket is mounted on the body to support the UAV; the front end and the rear end of the body are both provided with connecting pieces, and the connecting piece at the front end of the body is used to connect the transmission belt 200 so that the transmission belt 200 can drive the ejection cart 400 to slide along the length direction of the ejection track 100; the connecting piece at the rear end of the body is used to connect the braking device 600 so that the braking device 600 can recover the ejection cart 400 after the UAV is ejected and takes off.

[0061] Preferably, in this embodiment, the braking device 600 includes a recovery belt, one end of which is connected to the rear end of the vehicle body, and is used to drive the ejection vehicle 400 to slide along the length direction of the ejection track 100.

[0062] Preferably, in this embodiment, a pulley is provided on the side of the body of the ejection trolley 400 , and a slide groove is formed on the ejection track 100 . The pulley can drive the body to slide in the slide groove along the length direction of the ejection track 100 .

[0063] like Figure 1 As shown, in this embodiment, a mobile platform 700 is further included, and the ejection drive device 300 is installed on the mobile platform 700. By moving the mobile platform 700, the ejection drive device 300 can be quickly moved to a specified position, thereby improving the flexibility and convenience of using the ejection drive device 300.

[0064] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. A person skilled in the art will be able to make other variations or modifications based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A UAV ejection drive system, characterized in that: include: An ejection track (100), a transmission belt (200), an ejection drive device (300) and an ejection trolley (400), wherein the ejection trolley (400) is used to load a drone, the ejection track (100) is used to support the ejection trolley (400), one end of the transmission belt (200) is connected to the ejection trolley (400), and the other end is connected to the ejection drive device (300), and the transmission belt (200) is at least partially arranged along the length direction of the ejection track (100); the ejection drive device (300) is located below the ejection track (100) and is used to drive the transmission belt (200) to pull the ejection trolley (400) to slide along the ejection track (100); The ejection drive device (300) comprises a power assembly (310), an ejection clutch (320) and an ejection coil (330), wherein the ejection coil (330) is mounted on the ejection clutch (320); The power assembly (310) is configured such that when its rotation speed reaches a first rotation speed, the ejection clutch (320) engages, so that the power assembly (310) engages with the ejection disk (330), thereby enabling the power assembly (310) to drive the ejection disk (330) to rotate through the ejection clutch (320); and the other end of the transmission belt (200) is wound around the ejection disk (330).

2. The UAV ejection drive system according to claim 1, characterized in that: The power assembly (310) includes a drive motor (311), an inertia wheel (312), and a transmission shaft (313); the inertia wheel (312) is mounted on the drive motor (311) so that the drive motor (311) can drive the inertia wheel (312) to rotate; One end of the transmission shaft (313) is connected to the inertia wheel (312), and the other end is connected to the ejection clutch (320). When the inertia wheel (312) reaches the first rotational speed, the ejection clutch (320) is engaged.

3. The UAV ejection drive system according to claim 2, characterized in that: The invention also includes a driving bracket (510), a first shaft seat (520) and a second shaft seat (530), wherein the first shaft seat (520) and the second shaft seat (530) are mounted on the driving bracket (510), and the inertia wheel (312) is rotatably mounted between the first shaft seat (520) and the second shaft seat (530); the driving motor (311) is mounted on a side of the first shaft seat (520) away from the inertia wheel (312); and the ejection clutch (320) is located on a side of the second shaft seat (530) away from the inertia wheel (312).

4. The UAV ejection drive system according to claim 3, characterized in that: The ejection drive device (300) further comprises a brake disc (341) and an ejection brake caliper (342), wherein the brake disc (341) is mounted on a side of the ejection clutch (320) close to the second shaft seat (530), and the ejection brake caliper (342) is mounted on the second shaft seat (530), and the ejection brake caliper (342) is configured to be able to clamp the brake disc (341) to decelerate or stop the ejection clutch (320).

5. The UAV ejection drive system according to claim 4, characterized in that: The ejection drive device (300) further comprises a rotating magnetic grid (351) and a reading head (352), wherein the rotating magnetic grid (351) is mounted on a side of the ejection clutch (320) away from the second shaft seat (530), and the reading head (352) is mounted on a drive bracket (510) and is control-connected to the ejection clutch (320), wherein the rotating magnetic grid (351) and the reading head (352) are used to detect the rotation speed of the ejection clutch (320), and the ejection clutch (320) is configured to disengage when its rotation speed reaches a second rotation speed.

6. The UAV ejection drive system according to claim 3, characterized in that: It also includes a track bracket (540), one side of the track bracket (540) is mounted on the driving bracket (510), and the other side opposite thereto is rotatably mounted on the ejection track (100) via a connecting assembly (550).

7. The UAV ejection drive system according to claim 6, characterized in that: The connecting assembly (550) comprises a first hinge seat and a second hinge seat that are rotatable relative to each other, wherein the first hinge seat is mounted on the track bracket (540), and the second hinge seat is mounted on the ejection track (100), and the first hinge seat and the second hinge seat cooperate with each other so that the ejection track (100) is rotatably mounted on the track bracket (540).

8. The UAV ejection drive system according to claim 6, characterized in that: A first guide wheel (110) is provided on the ejection track (100), a second guide wheel (560) is provided on the track bracket (540), and a third guide wheel (570) is provided on the driving bracket (510). The other end of the transmission belt (200) is wound around the first guide wheel (110), the second guide wheel (560), and the third guide wheel (570) in sequence, and then wound around the ejection reel (330).

9. The UAV ejection drive system according to claim 1, characterized in that: A braking device (600) is also provided on the ejection track (100). The braking device (600) is connected to the ejection trolley (400) and is used to brake the ejection trolley (400) after the UAV takes off.

10. The UAV ejection drive system according to claim 1, characterized in that: It also includes a mobile platform (700), and the ejection drive device (300) is installed on the mobile platform (700).

Images