Buffer and recovery device of unmanned aerial vehicle ejection system
Through the synergistic effect of the buffer turntable and brake disc assembly, the problems of dynamic stability and automatic recovery of the UAV ejection device are solved, and an efficient and stable ejection and recovery process is achieved.
Patent Information
- Application Number
- CN202422705788.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-06
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-11-06
AI Technical Summary
The existing UAV ejection device has poor power stability, and the ejection vehicle is prone to jamming when returning, requiring manual intervention, resulting in low work efficiency.
The buffer turntable and brake disc assembly are used. The buffer belt is wound up by the buffer turntable to provide traction, and the brake disc assembly is combined to achieve buffering and traction, ensuring that the ejection trolley slides stably on the track and is automatically recovered after the ejection is completed.
It improves the stability and accuracy of UAV ejection, realizes the automatic recovery of the ejection vehicle, reduces manual intervention, and improves work efficiency and adaptability.
Smart Images
Figure CN223315261U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of unmanned aerial vehicle auxiliary equipment, in particular to a buffer and recovery device for a unmanned aerial vehicle ejection system. Background Art
[0002] With the development of society and the advancement of science and technology, drone technology has gradually become an indispensable force in the military and civilian fields. It has not only changed the traditional combat mode and reconnaissance means, but also demonstrated great application potential in many civilian fields such as disaster relief, environmental monitoring, and logistics distribution. With the research and development of drones, it has been found that the launch of drones has a direct impact on the indicators of the drone system's battlefield survivability, reusability, regional adaptability, and combat flexibility. As a key auxiliary equipment in the drone's take-off process, the importance of the drone ejection device has become increasingly prominent. It can provide the drone with the necessary initial power in a complex and changing environment, allowing the drone to complete the take-off action more stably and safely, ensuring that it reaches a safe flight speed in the shortest time, broadening the drone's take-off conditions, and enhancing the drone's regional adaptability and flexibility.
[0003] At present, the UAV catapult device mainly consists of a track, a catapult trolley, a traction device and a buffer spring. When in use, the catapult trolley is driven by the traction device to drive the loaded UAV to slide quickly on the track. When approaching the end of the stroke along the catapult direction, the UAV is ejected and takes off. Under the action of the buffer spring, the catapult trolley is rapidly decelerated to a stop, and the traction device stops the traction action at the same time. However, the use of buffer spring braking in traditional UAV catapult devices is easily limited by the fatigue life and energy storage capacity of the spring material, making it difficult to achieve long-term, high-intensity continuous catapult operations, resulting in poor catapult power stability, low catapult accuracy and efficiency. At the same time, after the UAV is ejected, the traditional catapult trolley can only rely on its own gravity to return to the ejection starting point along the inclined track. When the friction between the catapult trolley and the track is greater than the catapult trolley's own gravity or the track inclination is insufficient, it is easy to get stuck, and the catapult trolley needs to be manually pushed back to the initial position, which is inefficient and time-consuming. Utility Model Content
[0004] The purpose of the utility model is to provide a buffer and recovery device for a UAV ejection system, so as to solve the problems in the prior art of UAV ejection devices, such as poor power stability, easy jamming of the ejection trolley when returning, and reliance on manual labor, resulting in low work efficiency, wasted manpower and time.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:
[0006] A buffer and recovery device for a UAV ejection system, wherein the UAV is loaded on an ejection trolley, which is slidably mounted on an ejection track. The buffer and recovery device comprises:
[0007] a mounting base, wherein the mounting base is mounted on the ejection track;
[0008] A buffer assembly, comprising a buffer turntable and a buffer belt, wherein the buffer turntable is rotatably mounted on a mounting seat, and one end of the buffer belt is wound around the buffer turntable and the other end is connected to the ejection trolley;
[0009] The buffer turntable is configured to unwind the buffer belt when the buffer turntable rotates forward, so that the ejection vehicle can slide along the ejection direction on the ejection track; and to rewind the buffer belt when the buffer turntable rotates reversely, so as to provide traction to the ejection vehicle in the opposite direction of ejection;
[0010] A brake disc assembly is mounted on a mounting seat and connected to a buffer turntable. The brake disc assembly is configured to decelerate or stop the buffer turntable.
[0011] According to the above technical means, the buffer belt is wound up by the buffer turntable to provide traction in the opposite direction of the ejection to the ejection trolley. At the same time, under the coordinated action of the brake disc assembly, not only the ejection trolley is buffered to ensure that the ejection trolley can stably accelerate and glide on the ejection track, thereby improving the stability, ejection accuracy and efficiency of the UAV ejection, but also the ejection trolley can be smoothly and quickly recovered to the initial ejection position without relying on manual labor, thereby improving the safety and stability of the UAV ejection and recovery, high work efficiency, high flexibility and adaptability, and can meet the UAV ejection and recovery needs in various complex environments.
[0012] Furthermore, it also includes an ejection drive device, which is connected to the ejection trolley and is used to drive the ejection trolley to slide along the ejection direction on the ejection track.
[0013] According to the above technical means, the ejection drive device is connected to the ejection cart, which provides the ejection cart with initial power to slide along the ejection direction on the ejection track, so that the ejection cart can accelerate rapidly to reach the predetermined ejection speed, ensuring that the UAV can be smoothly ejected and taken off, and ensuring the ejection accuracy and improving the ejection efficiency.
[0014] Furthermore, the buffer assembly also includes a buffer drive device, which is installed on the mounting seat and connected to the buffer turntable. The buffer drive device is used to drive the buffer turntable to rotate in the opposite direction to reel up the buffer belt.
[0015] According to the above technical means, the buffer drive device is connected to the buffer turntable to drive the buffer turntable to rotate in the opposite direction, so as to efficiently and stably reel up the buffer belt, and provide the ejection trolley with stable traction in the opposite direction of the ejection. It can not only provide a buffering effect for the ejection trolley so that the UAV can be smoothly ejected and taken off, but also tow the ejection trolley back to the initial position faster and more smoothly after the ejection is completed, reducing the burden of manual operation and improving the overall degree of automation and work efficiency. In actual application, the synergy between the buffer drive device and the ejection drive device ensures the continuity and smoothness of the UAV ejection and recovery process, providing solid technical support for the rapid deployment and reuse of UAVs.
[0016] Furthermore, the buffer assembly also includes a rotating shaft, and the buffer turntable is rotatably mounted on the mounting seat via the rotating shaft. One end of the rotating shaft is connected to the buffer drive device, and the other end is connected to the brake disc assembly.
[0017] According to the above technical means, the buffer turntable is rotatably installed on the mounting seat through the rotating shaft, which is convenient to install, highly stable and flexible.
[0018] Furthermore, the buffer assembly also includes a reducer, which is mounted on a mounting seat, and the buffer drive device is connected to one end of the rotating shaft via the reducer.
[0019] According to the above technical means, the reducer has the function of deceleration, and the buffer drive device drives the rotating shaft to rotate through the reducer, thereby driving the buffer turntable to rotate in the opposite direction, playing an important role in adjusting the speed and increasing the torque, so that the buffer drive device can more smoothly and accurately control the rotation speed of the buffer turntable, ensuring the stability and continuity of the buffer belt during the unwinding and winding process.
[0020] Furthermore, the brake disc assembly includes a buffer brake disc and a buffer brake caliper. The buffer brake disc is mounted on a rotating shaft and is coaxially arranged with the buffer rotary disc. The buffer brake caliper is mounted on a mounting seat and is used to clamp the buffer brake disc to slow down or stop the buffer brake disc.
[0021] According to the above technical means, the buffer brake disc and the buffer turntable are coaxially arranged on the rotating shaft, and under the action of the buffer brake caliper clamping the buffer brake disc, precise control of the rotation speed of the buffer turntable is achieved. Specifically, when it is necessary to slow down or stop the buffer turntable, the buffer brake caliper will respond quickly, tightly hold the buffer brake disc, and use friction to control the rotation speed of the buffer turntable, thereby achieving the effect of deceleration or stopping, providing more reliable support for the buffering and recovery of the UAV catapult system.
[0022] Furthermore, it also includes a tensioning roller, which is mounted on a mounting seat. One end of the buffer belt is wound around the buffer turntable, and the other end passes around the tensioning roller and is connected to the ejection trolley. The tensioning roller is used to adjust the tension of the buffer belt.
[0023] According to the above technical means, the tensioning roller has the function of adjusting the tension of the buffer belt, reducing the friction loss of the buffer belt during the sliding process, and extending its service life. During installation, the tensioning roller and the buffer belt form a certain angle, so that the buffer belt can be straightened and connected to the ejection trolley after passing the tensioning roller, thereby ensuring the tension of the buffer belt during the ejection and recovery process, and improving the overall stability and reliability.
[0024] Furthermore, it also includes two limit rods, which are arranged in parallel and located on both sides of the buffer belt. One end of the two limit rods is installed on the mounting seat, and the other end is in contact with the tensioning roller for limiting the buffer belt.
[0025] According to the above technical means, during installation, one end of the buffer belt is wrapped around the buffer turntable, and the other end passes between the two limit rods and around the tensioning roller and then connected to the ejection trolley. The buffer belt is limited by the two limit rods to prevent the buffer belt from offsetting or falling off during the sliding process, providing a stable guide for the buffer belt so that it can always remain in the correct position, thereby ensuring the smooth progress of the entire ejection and recovery process.
[0026] Furthermore, the ejection track is a telescopic guide rail.
[0027] According to the above technical means, a telescopic guide rail is used as the ejection track. When in use, the length of the guide rail can be adjusted according to the ejection requirements. When not in use, the guide rail can be retracted to reduce the occupied space and facilitate storage and transportation. It has strong flexibility and high adaptability.
[0028] Furthermore, the ejection drive device includes a traction drive device and a traction belt. The traction drive device is mounted below the ejection track. One end of the traction belt is connected to the traction drive device, and the other end is connected to the ejection trolley.
[0029] According to the above technical means, when in use, the traction drive device reels in the traction belt to pull the ejection trolley to accelerate and glide on the ejection track, so that the ejection trolley reaches a predetermined ejection speed, ensuring that the UAV can be smoothly ejected to a predetermined height and distance.
[0030] Beneficial effects achieved by this utility model:
[0031] The utility model provides traction in the opposite direction of ejection to the ejection trolley by winding the buffer belt through the buffer turntable. At the same time, under the coordinated action of the brake disc assembly, it not only achieves buffering of the ejection trolley to ensure that the ejection trolley can stably accelerate and glide on the ejection track, thereby improving the stability, ejection accuracy and efficiency of the UAV ejection, but also enables the ejection trolley to be smoothly and quickly recovered to the initial ejection position without relying on manual labor, thereby improving the safety and stability of the UAV ejection and recovery, high working efficiency, high flexibility and adaptability, and can meet the UAV ejection and recovery needs in various complex environments. BRIEF DESCRIPTION OF THE DRAWINGS
[0032] Figure 1 It is a structural diagram of the working principle of the utility model;
[0033] Figure 2 This is a schematic diagram of the local structure of the utility model Figure 1 ;
[0034] Figure 3 For this utility model Figure 2 A magnified view of middle A;
[0035] Figure 4 This is a schematic diagram of the local structure of the utility model Figure 2 .
[0036] Among them, 1-UAV; 2-ejection trolley; 3-ejection track; 4-mounting seat; 51-buffer turntable; 52-buffer belt; 53-buffer drive device; 54-rotating shaft; 55-reducer; 6-brake disc assembly; 61-buffer brake disc; 62-buffer brake caliper; 7-ejection drive device; 71-traction drive device; 72-traction belt; 8-tensioning roller; 9-limiting rod.
[0037] The accompanying drawings are for illustrative purposes only and should not be construed as limitations on this patent. To better illustrate this embodiment, some components of the accompanying drawings may be omitted, enlarged, or reduced in size and do not represent the actual dimensions of the product. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted from the accompanying drawings. The same or similar reference numerals correspond to the same or similar components. The terms describing positional relationships in the accompanying drawings are for illustrative purposes only and should not be construed as limitations on this patent. DETAILED DESCRIPTION
[0038] It should be noted that, unless there is a conflict, the embodiments in this application and the technical features in the embodiments can be combined with each other. The detailed description in the specific embodiments should be understood as an explanation of the purpose of this application and should not be regarded as an improper restriction on this application.
[0039] To make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the specific technical solutions of the present application will be further described in detail below in conjunction with the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application but are not intended to limit the scope of the present application.
[0040] In the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of this application, unless otherwise specified, "multiple" means two or more.
[0041] In the embodiments of the present application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integrated connection; it can be a direct connection or an indirect connection through an intermediate medium.
[0042] In the embodiments of the present application, the terms "comprises," "comprising," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.
[0043] In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of this application should not be interpreted as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.
[0044] The technical solution of the present invention is described in detail below with reference to the accompanying drawings.
[0045] Example 1
[0046] In this embodiment, a buffer and recovery device for a UAV ejection system, such as Figure 1-Figure 3As shown, the UAV 1 is loaded on the ejection trolley 2, and the ejection trolley 2 is slidably mounted on the ejection track 3. The buffer and recovery device includes: a mounting seat 4, which is mounted on the ejection track 3; a buffer assembly, which includes a buffer turntable 51 and a buffer belt 52. The buffer turntable 51 is rotatably mounted on the mounting seat 4, and one end of the buffer belt 52 is wound on the buffer turntable 51, and the other end is connected to the ejection trolley 2; the buffer turntable 51 is configured to unwind the buffer belt 52 when the buffer turntable 51 rotates forward, so that the ejection trolley 2 can slide along the ejection direction on the ejection track 3; when the buffer turntable 51 rotates reversely, the buffer belt 52 can be reeled in to provide traction to the ejection trolley 2 in the opposite direction of ejection; a brake disc assembly 6, which is mounted on the mounting seat 4 and connected to the buffer turntable 51. The brake disc assembly 6 is configured to decelerate or stop the buffer turntable 51.
[0047] The present embodiment, through the synergistic effect of the buffer turntable 51 and the brake disc assembly 6, not only achieves buffering traction of the ejection trolley 2, but also improves the stability, ejection accuracy and efficiency of the UAV 1 ejection, and also realizes that the ejection trolley 2 can be smoothly and quickly reset and recovered to the initial ejection position without relying on manual labor after the ejection is completed, thereby improving the safety and stability of the ejection and recovery of the UAV 1, and having high work efficiency, flexibility and adaptability, and being able to meet the UAV ejection and recovery requirements in various complex environments; specifically, as a preferred embodiment, the ejection track 3 is a telescopic guide rail. In actual application, a number of pulley sets are provided between the buffer belt 52 and the ejection track 3 to complete the assembly and tensioning of the buffer belt 52. The UAV 1 is firmly loaded on the ejection trolley 2, and the ejection trolley 2 can slide smoothly on the telescopic guide rail, and the telescopic guide rail can be tilted according to the ejection requirements;
[0048] After the UAV 1 is loaded, the ejection trolley 2 drives the UAV 1 to slide in the ejection direction at an accelerated speed on the telescopic guide rail. During the accelerated sliding stroke, the buffer turntable 51 can rotate forwardly under the pull of the ejection trolley 2 through the buffer belt 52 to unwind the buffer belt 52, so that the ejection trolley 2 can slide smoothly in the ejection direction, and in this process, the brake disc assembly 6 can pre-brake the buffer turntable 51 with a predetermined force according to demand to decelerate the buffer turntable 51, provide a certain reverse traction force for the ejection trolley 2 that is accelerating and sliding, ensure the stability of the ejection trolley 2 running on the telescopic guide rail, thereby ensuring that the UAV 1 can be safely and stably ejected to a predetermined height and distance; when the ejection trolley 2 approaches the end of the acceleration stroke, the UAV 1 is ejected and takes off, thereby ejecting the UAV 1. The vehicle 2 enters the buffering working condition, at which time the brake disc assembly 6 quickly stops the buffer turntable 51, and at the same time, the buffer turntable 51 rotates in the opposite direction under the drive of the external force, providing traction to the ejection trolley 2 in the opposite direction of the ejection, to ensure that the ejection trolley 2 can be quickly and safely stopped, to prevent the ejection trolley 2 from colliding with the telescopic guide rail and causing damage, and saving the time required for braking; after the ejection trolley 2 is braked, it enters the recovery working condition, the brake disc assembly 6 releases the braking action on the buffer turntable 51, and then under the drive of the external force, the buffer turntable 51 rotates in the opposite direction, and the buffer belt 52 is wound up. At the same time, with the inclined telescopic guide rail, the ejection trolley 2 can be quickly and smoothly reset and recovered to the initial position of ejection, so as to carry out the next ejection work, reducing the need for manual intervention and improving work efficiency.
[0049] In this embodiment, an ejection driving device 7 is further included. The ejection driving device 7 is connected to the ejection vehicle 2 and is used to drive the ejection vehicle 2 to slide along the ejection direction on the ejection track 3.
[0050] like Figure 1 As shown, the ejection drive device 7 of this embodiment provides the ejection vehicle 2 with initial power to slide along the ejection direction on the ejection track 3, so that the ejection vehicle 2 accelerates rapidly to reach a predetermined ejection speed, ensuring that the UAV 1 can be smoothly ejected and take off; specifically, the ejection drive device 7 includes a traction drive device 71 and a traction belt 72, the traction drive device 71 is mounted below the ejection track 3, one end of the traction belt 72 is connected to the traction drive device 71, and the other end is connected to the ejection vehicle 2, and a number of pulley sets are provided between the traction belt 72 and the ejection vehicle 2 to complete the assembly and tensioning of the traction belt 72; in actual application, the traction drive device 71 reels the traction belt 72 to pull the ejection vehicle 2 to accelerate and slide on the ejection track 3, so that the ejection vehicle 2 reaches a predetermined ejection speed, ensuring that the UAV 1 can be smoothly ejected to a predetermined height and distance; wherein, the traction drive device 71 can be a tractor.
[0051] In this embodiment, the buffer assembly further includes a buffer drive device 53 , which is mounted on the mounting base 4 and connected to the buffer turntable 51 . The buffer drive device 53 is used to drive the buffer turntable 51 to rotate in the opposite direction to reel in the buffer belt 52 .
[0052] like Figure 2 and Figure 4 As shown, the buffer drive device 53 provides a driving force for the buffer turntable 51 to rotate in the reverse direction, which can drive the buffer turntable 51 to rotate in the reverse direction to rewind the buffer belt 51, and provide the ejection trolley 2 with a stable traction force in the opposite direction of ejection, thereby reducing the burden of manual operation and improving the overall degree of automation and work efficiency. Specifically, in actual application, during the acceleration and sliding stroke of the ejection trolley 2, the buffer turntable 51 is not affected by the buffer drive device 53, and rotates forwardly under the pull of the ejection trolley 2 through the buffer belt 52, so that the ejection trolley 2 can slide smoothly in the ejection direction; under the buffer working condition, the brake disc assembly Component 6 quickly brakes the buffer turntable 51, and at the same time, the buffer drive device 53 drives the buffer turntable 51 to rotate in the opposite direction, providing traction to the ejection trolley 2 in the opposite direction of ejection to ensure that the ejection trolley 2 can be quickly and safely braked; under the recovery condition, the brake disc assembly 6 releases the braking action on the buffer turntable 51, and then the buffer drive device 53 drives the buffer turntable 51 to rotate in the opposite direction, rewinding the buffer belt 52, and at the same time cooperating with the inclined telescopic guide rail, the ejection trolley 2 can be quickly and smoothly reset and recovered to the initial ejection position for the next ejection operation; wherein, the buffer drive device 53 can be a motor.
[0053] Furthermore, as a preferred embodiment, the buffer assembly further includes a rotating shaft 54, and the buffer turntable 51 is rotatably mounted on the mounting seat 4 via the rotating shaft 54. One end of the rotating shaft 54 is connected to the buffer drive device 53, and the other end is connected to the brake disc assembly 6; Figure 3 and Figure 4 As shown, in actual application, the buffer turntable 51 is rotatably mounted on the mounting base 4 via the rotating shaft 54 , which is convenient to install, highly stable, and highly flexible.
[0054] Furthermore, as a preferred embodiment, the buffer assembly further includes a reducer 55, the reducer 55 is mounted on the mounting base 4, and the buffer drive device 53 is connected to one end of the rotating shaft 54 through the reducer 55; Figure 2 and Figure 4 As shown, the reducer 55 has a deceleration function. In actual application, the motor drives the rotating shaft 54 to rotate through the reducer 55, thereby driving the buffer turntable 51 to rotate in the opposite direction. It has the important function of adjusting the speed and increasing the motor torque, so that the motor can more smoothly and accurately control the rotation speed of the buffer turntable 51, ensuring the stability and continuity of the buffer belt 52 during the unwinding and rewinding process.
[0055] In this embodiment, the brake disc assembly 6 includes a buffer brake disc 61 and a buffer brake caliper 62. The buffer brake disc 61 is mounted on the rotating shaft 54 and is coaxially arranged with the buffer turntable 51. The buffer brake caliper 62 is mounted on the mounting seat 4 and is used to clamp the buffer brake disc 61 to slow down or stop the buffer brake disc 61.
[0056] like Figure 3 As shown, the buffer brake caliper 62 of this embodiment can clamp the buffer brake disc 61, increase the friction between the buffer brake disc 61, and make the buffer brake disc 61 slow down or stop, thereby driving the buffer turntable 51 to slow down or stop through the rotating shaft 54. Specifically, in actual application, during the acceleration and sliding of the ejection cart 2, the buffer brake caliper 62 can pre-clamp the buffer brake disc 61 as needed, thereby generating a certain friction between the clamped buffer brake disc 61, so as to apply a certain reverse traction force to the ejection cart 2 to ensure the stability of operation; under the buffering working condition, the buffer brake caliper 62 will respond quickly, tightly clamp the buffer brake disc 61, to stop the ejection cart 2, and prevent the ejection cart 2 from hitting the ejection track 3, saving the time required for braking, shortening the overall ejection cycle, and improving the ejection efficiency, providing more reliable support for the buffering and recovery of the UAV ejection system.
[0057] In this embodiment, a tensioning roller 8 is further included. The tensioning roller 8 is mounted on the mounting base 4. One end of the buffer belt 52 is wound around the buffer turntable 51, and the other end passes around the tensioning roller 8 and is connected to the ejection trolley 2. The tensioning roller 8 is used to adjust the tension of the buffer belt 52; Figure 4 As shown, the tensioning roller 8 of this embodiment has the function of adjusting the tension of the buffer belt 52, reducing friction loss and extending its service life. In actual application, the tensioning roller 8 and the buffer belt 52 form a certain angle, so that the buffer belt 52 can be straightened and connected to the ejection trolley 2 after passing the tensioning roller 8, thereby ensuring the tension of the buffer belt during the ejection and recovery process, and improving the overall stability and reliability.
[0058] In this embodiment, two limit rods 9 are further included. The two limit rods 9 are arranged in parallel and are respectively located on both sides of the buffer belt 52. One end of the two limit rods 9 is mounted on the mounting seat 4, and the other end is in contact with the tensioning roller 8 to limit the buffer belt 52. Figure 4 As shown, in actual application, one end of the buffer belt 52 is wrapped around the buffer turntable 51, and the other end passes between the two limit rods 9 and around the tensioning roller 8 and then connected to the ejection trolley 2 to prevent the buffer belt 52 from shifting or falling off during the sliding process, providing a stable guide for the buffer belt so that it can always remain in the correct position, thereby ensuring the smooth progress of the entire ejection and recovery process.
[0059] Example 2
[0060] The drone 1 is securely loaded onto the ejection trolley 2, which can then slide smoothly on the inclined telescopic guide rails. After the drone 1 is loaded, the method for using the buffer and recovery device of the drone ejection system specifically includes the following steps:
[0061] In the ejection condition S1, the ejection drive device 7 drives the ejection trolley 2 to drive the UAV 1 to slide in the ejection direction on the ejection track 3 at an accelerated speed. At the same time, the ejection trolley 2 pulls the buffer belt 52 to drive the buffer turntable 51 to rotate forward. During this process, the brake disc assembly 6 can pre-brake and decelerate the buffer turntable 51 according to the ejection requirements, so that the buffer belt 52 pulls the ejection trolley 2 in the reverse direction, keeping the ejection trolley 2 stably ejecting and sliding on the ejection track 3;
[0062] S2. When the ejection vehicle 2 approaches the end of the acceleration stroke, the UAV 1 is ejected and takes off. Under the buffering condition, the brake disc assembly 6 quickly stops the buffer turntable 51. At the same time, the buffer driving device 53 drives the buffer turntable 51 to rotate in the opposite direction. The buffer belt 52 provides traction to the ejection vehicle 2 in the opposite direction of ejection, so as to achieve a quick and safe braking of the ejection vehicle 2.
[0063] S3. After the braking is completed, in the recovery state, the brake disc assembly 6 releases the braking action on the buffer turntable 51, and the buffer drive device 53 drives the buffer turntable 51 to rotate in the opposite direction to rewind the buffer belt 52, and pulls the ejection trolley 2 to slide on the ejection track 3 in the opposite direction of ejection to be retracted to the ejection initial position;
[0064] S4. After the UAV 1 is loaded onto the ejection vehicle 2, steps S1 to S3 are repeated.
[0065] The serial numbers of the embodiments of this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above are only preferred embodiments of this application and do not limit the scope of the patent of this application. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the scope of patent protection of this application.
Claims
1. A buffer and recovery device for an unmanned aerial vehicle (UAV) ejection system, wherein the UAV (1) is loaded on an ejection trolley (2), and the ejection trolley (2) is slidably mounted on an ejection track (3), characterized in that: The buffer and recovery device comprises: A mounting seat (4), wherein the mounting seat (4) is mounted on the ejection track (3); A buffer assembly, the buffer assembly comprising a buffer turntable (51) and a buffer belt (52), the buffer turntable (51) being rotatably mounted on a mounting seat (4), one end of the buffer belt (52) being wound around the buffer turntable (51) and the other end being connected to the ejection trolley (2); The buffer turntable (51) is configured to unwind the buffer belt (52) when the buffer turntable (51) rotates in the forward direction, so that the ejection vehicle (2) can slide along the ejection direction on the ejection track (3); and to rewind the buffer belt (52) when the buffer turntable (51) rotates in the reverse direction, so as to provide traction to the ejection vehicle (2) in the reverse direction of ejection; A brake disc assembly (6) is mounted on a mounting seat (4) and connected to a buffer turntable (51). The brake disc assembly (6) is configured to decelerate or stop the buffer turntable (51).
2. The buffer and recovery device of the UAV ejection system according to claim 1, characterized in that: The invention also comprises an ejection driving device (7), wherein the ejection driving device (7) is connected to the ejection trolley (2) and is used for driving the ejection trolley (2) to slide along the ejection direction on the ejection track (3).
3. The buffer and recovery device of the UAV ejection system according to claim 1, characterized in that: The buffer assembly further comprises a buffer drive device (53), which is mounted on the mounting seat (4) and connected to the buffer turntable (51). The buffer drive device (53) is used to drive the buffer turntable (51) to rotate in the opposite direction to reel up the buffer belt (52).
4. The buffer and recovery device of the UAV ejection system according to claim 3 is characterized in that: The buffer assembly further comprises a rotating shaft (54), and the buffer rotary disc (51) is rotatably mounted on the mounting seat (4) via the rotating shaft (54). One end of the rotating shaft (54) is connected to the buffer driving device (53), and the other end is connected to the brake disc assembly (6).
5. The buffer and recovery device of the UAV ejection system according to claim 4, characterized in that: The buffer assembly further comprises a reducer (55), the reducer (55) being mounted on the mounting seat (4), and the buffer drive device (53) being connected to one end of the rotating shaft (54) via the reducer (55).
6. The buffer and recovery device of the UAV ejection system according to claim 3, characterized in that: The brake disc assembly (6) comprises a buffer brake disc (61) and a buffer brake caliper (62). The buffer brake disc (61) is mounted on a rotating shaft (54) and is coaxially arranged with the buffer rotating disc (51). The buffer brake caliper (62) is mounted on a mounting seat (4) and is used to clamp the buffer brake disc (61) to decelerate or stop the buffer brake disc (61).
7. The buffer and recovery device of the UAV ejection system according to claim 1, characterized in that: It also includes a tensioning roller (8), which is mounted on the mounting seat (4). One end of the buffer belt (52) is wound around the buffer turntable (51), and the other end passes around the tensioning roller (8) and is connected to the ejection trolley (2). The tensioning roller (8) is used to adjust the tension of the buffer belt (52).
8. The buffer and recovery device of the UAV ejection system according to claim 7, characterized in that: It also includes two limiting rods (9), which are arranged in parallel and respectively located on both sides of the buffer belt (52). One end of the two limiting rods (9) is mounted on the mounting seat (4), and the other end is in contact with the tensioning roller (8) for limiting the buffer belt (52).
9. The buffer and recovery device of the UAV ejection system according to claim 1, characterized in that: The ejection track (3) is a telescopic guide rail.
10. The buffer and recovery device of the UAV ejection system according to claim 2, characterized in that: The ejection drive device (7) comprises a traction drive device (71) and a traction belt (72). The traction drive device (71) is mounted below the ejection track (3). One end of the traction belt (72) is connected to the traction drive device (71), and the other end is connected to the ejection trolley (2).