Linear motor integrated type ejection frame, vehicle-mounted system and unmanned aerial vehicle ejection system

Abstract

The invention discloses a linear motor integrated type ejection frame, a vehicle-mounted system and an unmanned aerial vehicle ejection system. Comprising a chassis and an ejection frame, the ejection frame is connected with the chassis through an inclined pushing piece, and the ejection frame can rotate relative to the chassis; the ejection frame comprises a linear motor frame middle section, and the two ends of the linear motor frame middle section are movably connected with a linear motor frame head section and a linear motor frame tail section through folding driving mechanisms correspondingly. Under the action of the folding driving mechanism, the linear motor frame head section and the linear motor frame tail section can be rotated to be located on the same horizontal plane with the linear motor frame middle section or parallel to the linear motor frame middle section. According to the unmanned aerial vehicle catapult, rapid unfolding and folding and vehicle-mounted high integration can be achieved, the unmanned aerial vehicle catapult is used for catapulting of the unmanned aerial vehicle, reasonable layout is achieved, high integration of spatial layout is achieved, the structure is compact, the spatial layout integration degree is high, and a brand new catapulting device is provided for meeting the requirements for rapid unfolding and folding and vehicle-mounted high integration; the vehicle-mounted integration device can be suitable for vehicle-mounted integration of ejection frames of various lengths required by ejection of the unmanned aerial vehicle.

Description

A linear motor integrated catapult, vehicle-mounted system and UAV catapult system Technical Field

[0001] This invention relates to the field of drone catapult technology, specifically to a linear motor integrated catapult, a vehicle-mounted system, and a drone catapult system. Background Technology

[0002] A linear motor is a power device that directly converts electrical energy into linear motion mechanical energy, with the mover running at high speed under the electromagnetic thrust of the stator. Currently, linear motors are widely used in rail transportation, industrial control, CNC machine tools, fixed-wing drones, and other fields. Meanwhile, the demand for vehicle-mounted integrated linear motor devices is increasing. This application is applied to the catapult launch field of drones.

[0003] For example, the prior art with patent publication number CN212243873U discloses "a single UAV catapult and its flexible combined UAV track catapult, the flexible combined UAV track catapult including several UAV catapult units connected in parallel, each UAV catapult unit including a main frame, a main track trolley, elastic components, a locking and releasing mechanism, and a buffer mechanism. The flexible combined UAV track catapult is suitable for multiple UAVs combined by a wingtip connection structure, and the flexible combined UAV track catapult provided by this utility model enables the synchronous launch of flexible combined UAVs, avoiding the problem of damage caused by uncoordinated forces at the wing connection." In this technology, the catapult is of fixed length, and its length and angle cannot be adjusted according to the UAV catapult needs. Moreover, the structure is complex, occupies a large space, and cannot flexibly adapt to the UAV catapult requirements. Summary of the Invention

[0004] The technical problem to be solved by this invention is: how to provide an integrated linear motor catapult that is adapted to rapid deployment and retraction.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] A linear motor integrated catapult includes a chassis and a catapult movably mounted on the chassis. The catapult is connected to the chassis via an inclined pushing member, and the catapult can rotate relative to the chassis under the action of the inclined pushing member. The catapult includes a middle section of a linear motor frame, and the two ends of the middle section are movably connected to the first and last sections of the linear motor frame via folding drive mechanisms, respectively. Under the action of the folding drive mechanism, the first and last sections of the linear motor frame can be rotated to be on the same horizontal plane as or parallel to the middle section of the linear motor frame.

[0007] As a further embodiment of the present invention: the folding drive mechanism includes a folding hinge, a folding pusher, and a linkage mechanism. The two ends of the folding hinge are mounted on two adjacent linear motor frames. One end of the folding pusher is movably connected to one of the linear motor frames, and the other end is connected to the folding hinge through the linkage mechanism, and can drive the folding hinge to fold or unfold through the linkage mechanism.

[0008] As a further aspect of the present invention: the folding hinge includes a first hinge and a second hinge, wherein the first hinge and the second hinge are movably hinged together, and the first hinge and the second hinge are respectively fixed to two adjacent linear motor frames.

[0009] As a further aspect of the present invention: the linkage mechanism includes a first linkage and a second linkage; one end of the first linkage is movably connected to one of the hinges in the folding hinges, and the other end is movably connected to the folding pusher; one end of the second linkage is movably connected to the other hinge in the folding hinges, and the other end is movably connected to the middle part of the first linkage.

[0010] As a further aspect of the present invention: the folding drive mechanism can drive the first section of the linear motor frame to rotate from 0° to 180° around the center of the folding hinge.

[0011] As a further aspect of the present invention: the folding drive mechanism can drive the tail section of the linear motor frame to rotate from 0° to 180° around the center of the folding hinge.

[0012] As a further aspect of the present invention: an energy storage drive source and a diesel generator set are installed on the top of the chassis and on one side of the catapult, and the energy storage drive source is connected to the diesel generator set.

[0013] As a further aspect of the present invention: the energy storage drive source is connected to the linear motors in the first section, the last section, and the middle section of the linear motor frame, respectively.

[0014] The present invention also provides a vehicle-mounted system, including a linear motor integrated catapult and a vehicle, wherein the chassis and the catapult above it are mounted on the vehicle.

[0015] The present invention also provides a drone launch system, including a vehicle-mounted system and a drone capable of being launched along a launcher.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: First, the linear motor catapult provided in this application is designed with an automatically foldable structure, which can realize rapid deployment and retraction and high vehicle integration for UAV catapult launch; at the same time, the catapult, energy storage drive source, and diesel generator set are rationally arranged on the chassis to achieve a high degree of spatial integration. The structure is compact and the spatial layout integration is high, providing a brand-new catapult device to meet the requirements of rapid deployment and retraction and high vehicle integration. It can be applied to the vehicle integration of catapults of various lengths required for UAV catapult launch; Second, the middle section of the linear motor frame in this application is hinged to the first and last sections of the linear motor frame through folding hinges to form the linear motor frame; after folding, the first and last sections of the linear motor frame are located on one side of the middle section of the linear motor frame; the linear motor frame is arranged on the right side of the chassis, and the energy storage drive source and diesel generator set are arranged on the left side of the chassis, realizing a uniform distribution of the chassis load center of gravity and meeting the requirements of high vehicle integration. Attached Figure Description

[0017] Figure 1 is a structural schematic diagram of the vehicle-mounted integrated catapult frame according to an embodiment of the present invention; Figure 2 is a top view of the vehicle-mounted integrated catapult frame according to an embodiment of the present invention; Figure 3 is a top view of the first and last sections of the linear motor frame according to an embodiment of the present invention when rotated 90 degrees; Figure 4 is a schematic diagram of the vehicle-mounted integrated catapult frame according to an embodiment of the present invention after being unfolded; Figure 5 is a structural schematic diagram of the folding drive mechanism according to an embodiment of the present invention; Figure 6 is a structural schematic diagram of the folding drive mechanism according to an embodiment of the present invention when unfolded 90 degrees; Explanation of reference numerals: 1. Chassis; 2. Middle section of linear motor frame; 3. First section of linear motor frame; 4. Last section of linear motor frame; 5. Folding hinge; 6. Folding pusher; 7. Tilting pusher; 8. Rotating hinge; 9. Energy storage drive source; 10. Diesel generator set; 11. Link 1; 12. Link 2. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Referring to Figures 1, 2, and 5, an integrated linear motor catapult for launching unmanned aerial vehicles (UAVs) is described in Embodiment 1. Specifically, it includes a chassis 1, and a catapult mounted on the chassis 1, a folding hinge 5, a folding pusher 6, a tilting pusher 7, a rotating hinge seat 8, an energy storage drive source 9, a diesel generator set 10, a first connecting rod 11, and a second connecting rod 12. The catapult includes a middle section 2 of the linear motor frame, a first section 3 of the linear motor frame, and a tail section 4 of the linear motor frame. The chassis 1 is mounted on a mobile vehicle, which can be a semi-trailer.

[0020] Let the end of the linear motor frame 2 closest to the front of the vehicle be the tail end and the other end be the head end. This setting is for the convenience of the following description and is not a limitation.

[0021] Referring to Figure 1, a rotating hinge 8 is mounted on the top of the chassis 1, and the bottom front end of the linear motor frame middle section 2 is rotatably connected to the rotating hinge 8; the top of the chassis 1 is movably connected to one end of the tilting pusher 7, and the other end of the tilting pusher 7 is movably connected to the bottom rear end of the linear motor frame middle section 2; by operating and controlling the tilting pusher 7, the launcher can quickly adjust its angle and achieve stable support around the rotating hinge 8. It should be noted that the tilting pusher 7 can be a hydraulic telescopic cylinder.

[0022] Referring to Figures 2 and 3, the front end of the middle section 2 of the linear motor frame is connected to the first section 3 of the linear motor frame via a folding drive mechanism. This folding drive mechanism can rotate the first section 3 of the linear motor frame relative to the front end of the middle section 2 of the linear motor frame until the first section 3 of the linear motor frame and the middle section 2 of the linear motor frame form a horizontal plane (as shown in Figure 4). At the same time, the first section 3 of the linear motor frame can also be rotated to be parallel to the middle section 2 of the linear motor frame.

[0023] Referring to Figures 2 and 3, the tail end of the middle section 2 of the linear motor frame is connected to the tail section 4 of the linear motor frame via a folding drive mechanism. This folding drive mechanism can rotate the tail section 4 of the linear motor frame relative to the tail end of the middle section 2 of the linear motor frame until the tail section 4 of the linear motor frame and the middle section 2 of the linear motor frame form a horizontal plane (as shown in Figure 4). At the same time, the tail section 4 of the linear motor frame can also be rotated to be parallel to the middle section 2 of the linear motor frame.

[0024] It should be noted that there is another possible installation for the tail section 4 and the head section 3 of the linear motor frame. That is, the tail section 4 can also be connected to the front end of the middle section 2 of the linear motor frame through a folding drive mechanism, and the head section 3 can also be connected to the tail end of the middle section 2 of the linear motor frame through a folding drive mechanism. This application does not limit this, and the length of the head section 3, the middle section 2, and the tail section 4 of the linear motor frame is also not limited in this application. It depends on the length and width of the vehicle and the needs of the drone.

[0025] When the first section 3, the middle section 2, and the tail section 4 of the linear motor frame are all on the same horizontal plane (as shown in Figure 4), the launcher is in a fully deployed state. After the tilting pusher 7 adjusts the launch angle of the drone, the first section 3 of the linear motor frame is at a low position and the tail section 4 is at a high position. By placing the drone on the first section 3 of the linear motor frame, the drone can be launched from the first section 3 towards the tail section 4 of the linear motor frame, thus achieving launch. To maintain stability, a support frame can be set at the bottom of the first section 3 of the linear motor frame to support it on the ground. If the length of the first section 3 of the linear motor frame is not long enough, it can also be supported on the chassis 1 of the vehicle. The specific method depends on the actual situation and is not limited in this application.

[0026] Referring to Figures 3, 5, and 6, the folding drive mechanism includes a folding hinge 5, a folding pusher 6, a first connecting rod 11, and a second connecting rod 12. The folding hinge 5 consists of a first hinge and a second hinge, which are hinged together. The first hinge is fixed to the middle section 2 of the linear motor frame, and the second hinge is fixed to either the first section 3 or the tail section 4 of the linear motor frame. The second hinge is movably connected to the first connecting rod 11, with its other end movably connected to the folding pusher 6. The first hinge is movably connected to the second connecting rod 12, with its other end movably connected to the middle of the first connecting rod 11. The other end of the folding pusher 6 is movably connected to the bottom of the middle section 2 of the linear motor frame. It should be noted that the folding pusher 6 can be a hydraulic telescopic cylinder.

[0027] Referring to Figure 2, an energy storage drive source 9 and a diesel generator set 10 are installed on the top of the chassis 1 and on one side of the middle section 2 of the linear motor frame. The diesel generator set 10 is located in front of the energy storage drive source 9 to achieve a uniform distribution of the chassis's load-bearing center of gravity. The diesel generator set 10 is connected to the energy storage drive source 9, and the energy storage drive source 9 is connected to the linear motors in the first section 3, the middle section 2, and the tail section 4 of the linear motor frame, and supplies power to the linear motors. This layout achieves both high spatial integration and prevents spatial interference between the catapult and the energy storage drive source 9 during the deployment of the catapult.

[0028] Example 2 This example discloses a vehicle-mounted system, including the linear motor integrated catapult from Example 1, and a vehicle. The chassis and the catapult on top of it are both mounted on the vehicle. By controlling the vehicle, the linear motor integrated catapult can be moved to the desired position to facilitate the launch of the UAV at the desired location.

[0029] Example 3 This example discloses a drone catapult system, including the vehicle-mounted system in Example 2 and the drone. The drone can be launched along the catapult frame in the direction of the first segment 3 of the linear motor frame toward the tail segment 4 of the linear motor frame.

[0030] The specific operating principle of this application is as follows: During rapid deployment, the tilting pusher 7 is first adjusted to the predetermined launch angle. Then, the first section 3 of the linear motor frame, driven by the folding pusher 6, quickly completes a rotation from 0° to 180°. The tail section 4 of the linear motor frame, driven by the folding pusher 6, quickly completes a rotation from 0° to 180°, thus reaching the deployed state. The deployed state is shown in Figure 4. After the entire launch frame is deployed, the linear motors on the first section 3, the middle section 2, and the tail section 4 of the linear motor frame begin to work, driving the UAV to carry out the predetermined launch operation.

[0031] During rapid retraction, the folding operation is performed in reverse order as described above. After folding, the first section 3 and the last section 4 of the linear motor frame are located on one side of the middle section 2 of the linear motor frame. The middle section 2 of the linear motor frame is connected to the first section 3 and the last section 4 of the linear motor frame respectively by folding hinges 5, forming a catapult frame.

[0032] The middle section 2 of the linear motor frame in this application is hinged to the first section 3 and the last section 4 of the linear motor frame via folding hinges 5, forming a catapult frame. After folding, both the first section 3 and the last section 4 of the linear motor frame are located on one side of the middle section 2. The catapult frame is arranged on the right side of the chassis 1, and the energy storage drive source 8 and the diesel generator set 9 are arranged on the left side of the chassis 1, achieving a uniform distribution of the chassis's load-bearing center of gravity and meeting the requirements of vehicle-mounted integration. The linear motor catapult device provided in this application can achieve rapid deployment and retraction and high vehicle-mounted integration. It has a compact structure and high spatial layout integration, providing a brand-new linear motor catapult device to meet the requirements of rapid deployment and retraction and high vehicle-mounted integration. It can be applied to the vehicle-mounted integration of catapults of various lengths of UAVs.

[0033] It should be noted that the left and right directions mentioned above are based on the front of the vehicle. The specific locations of the catapult, energy storage drive source 8 and diesel generator set 9 are not limited in this application and shall be subject to the actual situation. The catapult can also be arranged on the left side of the chassis 1, and the energy storage drive source 8 and diesel generator set 9 can also be arranged on the right side of the chassis 1.

[0034] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A linear motor integrated catapult, characterized in that, The system includes a chassis (1) and a catapult mounted on the chassis (1). The catapult is connected to the chassis (1) via a tilting pusher (7). Under the action of the tilting pusher (7), the catapult can rotate relative to the chassis (1). The catapult includes a middle section (2) of a linear motor frame. The two ends of the middle section (2) of the linear motor frame are movably connected to the first section (3) and the tail section (4) of the linear motor frame via a folding drive mechanism. Under the action of the folding drive mechanism, the first section (3) and the tail section (4) of the linear motor frame can be rotated to be on the same horizontal plane as the middle section (2) of the linear motor frame, or parallel to it.

2. The linear motor integrated catapult as described in claim 1, characterized in that: The folding drive mechanism includes a folding hinge (5), a folding pusher (6), and a linkage mechanism. The two ends of the folding hinge (5) are mounted on two adjacent linear motor frames. One end of the folding pusher (6) is movably connected to one of the linear motor frames, and the other end is connected to the folding hinge (5) through the linkage mechanism. The folding hinge (5) can be folded or unfolded through the linkage mechanism.

3. The linear motor integrated catapult according to claim 2, characterized in that: The folding hinge (5) includes a first hinge and a second hinge, wherein the first hinge and the second hinge are movably hinged together, and the first hinge and the second hinge are respectively fixed to two adjacent linear motor frames.

4. The linear motor integrated catapult according to claim 3, characterized in that: The linkage mechanism includes a first link (11) and a second link (12); one end of the first link (11) is movably connected to one of the hinges in the folding hinge (5), and the other end is movably connected to the folding pusher (6); one end of the second link (12) is movably connected to the other hinge in the folding hinge (5), and the other end is movably connected to the middle of the first link (11).

5. A linear motor integrated catapult as described in claim 2, characterized in that: The folding drive mechanism can drive the first section (3) of the linear motor frame to rotate from 0° to 180° around the center of the folding hinge (5).

6. The linear motor integrated catapult according to claim 2, characterized in that: The folding drive mechanism can drive the tail section (4) of the linear motor frame to rotate from 0° to 180° around the center of the folding hinge (5).

7. The linear motor integrated catapult according to claim 1, characterized in that: An energy storage drive source (9) and a diesel generator set (10) are installed on the top of the chassis (1) and on one side of the catapult. The energy storage drive source (9) is connected to the diesel generator set (10).

8. The linear motor integrated catapult according to claim 7, characterized in that: The energy storage drive source (9) is connected to the linear motors in the first section (3), the last section (4), and the middle section (2) of the linear motor frame, respectively.

9. A vehicle-mounted system, characterized in that, The system includes a linear motor integrated catapult as described in any one of claims 1-8, and a vehicle, wherein the chassis (1) and the catapult above it are mounted on the vehicle.

10. A catapult system for unmanned aerial vehicles, characterized in that, Includes the vehicle-mounted system as described in claim 9, and a drone capable of being launched along a catapult.

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