A UAV rotor anti-dead point recovery device

Abstract

The present invention discloses an anti-dead point recovery device for a drone rotor, which is characterized in that it includes a recovery push rod device and an anti-dead point blocking column mechanism. The recovery push rod device is symmetrically arranged on both sides of the drone parking platform and can reciprocate toward or away from the drone parking platform. The anti-dead point blocking column mechanism is movably arranged in the recovery push rod device; the anti-dead point blocking column mechanism is an eccentric structure that can rotate autonomously, and the initial position of the anti-dead point blocking column mechanism in the recovery push rod device is: in the area corresponding to the wing of the drone close to the center side of the parking platform. The anti-dead point recovery device for a drone rotor provided by the present invention assists the recovery of the drone rotor and prevents the rotor from getting stuck during the recovery process, providing an auxiliary function for the recovery of the drone; the above device can realize the simultaneous recovery of the four rotors of the drone, solve the problem of getting stuck during the recovery process, and ensure the stability of the drone rotor recovery.

Description

Technical Field

[0001] The invention relates to the technical field of unmanned aerial vehicle auxiliary applications, and in particular to an unmanned aerial vehicle rotor anti-dead point recovery device. Background Art

[0002] The rotor is an important part of the UAV, which enables the take-off and landing of the UAV. Usually, considering the space of the airport, the airport needs to retract the rotor to a corresponding position to reduce the size of the docking platform. At the same time, during the process of retracting the rotor, the commonly used column structure of the prior art often forms a dead point with the root of the rotor, causing the rotor and the column to get stuck.

[0003] Therefore, providing a new rotor structure to solve the problem of rotor jamming during the retracting process has become a technical problem that needs to be solved urgently. Summary of the invention

[0004] In view of this, the present invention discloses a UAV rotor anti-dead point recovery device to solve the problem of rotor jamming during the recovery process of the UAV rotor and provide auxiliary functions for the recovery of the UAV.

[0005] The technical solution provided by the present invention is specifically, a UAV rotor anti-dead point recovery device, comprising a recovery push rod device and an anti-dead point blocking column mechanism, wherein the recovery push rod device is symmetrically arranged on both sides of the UAV parking platform and can reciprocate toward or away from the UAV parking platform, and the anti-dead point blocking column mechanism is movably arranged in the recovery push rod device;

[0006] The anti-dead point blocking column mechanism is an eccentric structure that can rotate autonomously. The initial position of the anti-dead point blocking column mechanism in the recovery push rod device is: in the area corresponding to the wing of the UAV close to the center side of the parking platform.

[0007] Preferably, the recovery push rod device includes a push rod base, a drive motor, a main synchronous pulley, a slave synchronous pulley, a synchronous belt, a slide rail slider and a fixed rotor lever; the drive motor is fixed on the push rod base, the main synchronous pulley is connected and cooperated with the drive motor, the slave synchronous pulley is fixed at the other end of the push rod base, the synchronous belt cooperates with the main synchronous pulley and the slave synchronous pulley, and the fixed rotor lever is fixed on the push rod base.

[0008] Preferably, two anti-dead point stop column mechanisms are provided in the recovery push rod device on each side, which are respectively fixed on the synchronous belts on both sides of the center line connecting the driving pulley and the driven pulley; the position of the fixed rotor pull rod on the push rod base is aligned with the initial position of the anti-dead point stop column mechanism.

[0009] Preferably, the anti-dead point stop column mechanism comprises a base, a rotating column, an end cover, a spacer, a pressure cover, a cover plate, a bearing, a positioning column and a torsion spring; the bottom of the base is fixed on the slide rail slider, and the side of the base is fixed to the synchronous belt;

[0010] A blocking shaft is fixed at the center of the base, and four bearings are provided, which are symmetrically arranged along both sides of the blocking shaft end of the base, with two bearings on each side, which are connected and matched with the blocking shaft end of the base through the inner ring of each bearing, and a spacer sleeve is installed between the two bearings. The rotating column is sleeved on the outer side of the blocking shaft end, and the rotating column cooperates with the outer ring of the bearing, and the pressure cover is fixed on the top of the blocking shaft end; a positioning column is also fixed on the base, and the torsion spring body is sleeved on the blocking shaft, one end of the torsion arm is inserted into the corresponding hole of the rotating column, and the other end of the torsion arm is inserted into the corresponding hole of the positioning column; the end cover is fixed on the rotating column.

[0011] Preferably, the rotating column is in the shape of a triangular prism.

[0012] Preferably, the recovery push rod device is driven to move by a clamping power mechanism, and the tightening power mechanism includes two oppositely arranged guide rails, and the guide rails and the recovery push rod devices on both sides surround the parking platform therein, and both ends of the recovery push rod device are installed in the guide rails.

[0013] The present invention provides a UAV rotor anti-dead point recovery device, which assists the recovery of the UAV rotor and prevents the rotor from getting stuck during the recovery process, thereby providing an auxiliary function for the recovery of the UAV; the above device can realize the simultaneous recovery of the four rotors of the UAV, solve the problem of getting stuck during the recovery process, and ensure the stability of the UAV rotor recovery.

[0014] The anti-dead point structure can be applied to UAV application industries such as fixed intelligent air stations and mobile intelligent air stations. When applied, it completely solves the problem of getting stuck during the rotor retraction process.

[0015] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 A schematic diagram of the overall layout structure of a UAV rotor anti-dead point recovery device provided by an embodiment of the present invention;

[0019] Figure 2 A schematic structural diagram of a recovery push rod device 1 in a UAV rotor anti-dead point recovery device provided by an embodiment of the present invention;

[0020] Figure 3 A schematic diagram of the external structure of an anti-dead point blocking column mechanism 2 in an anti-dead point recovery device for a UAV rotor provided by an embodiment of the present invention;

[0021] Figure 4 A schematic diagram of the internal structure of an anti-dead point blocking column mechanism 2 in an anti-dead point recovery device for a UAV rotor provided in an embodiment of the present invention;

[0022] Figure 5 The present invention is a schematic top view of the structure of an anti-dead point blocking column mechanism 2 in an anti-dead point recovery device for a UAV rotor provided in an embodiment disclosed by the present invention. DETAILED DESCRIPTION

[0023] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present invention. Instead, they are merely examples of systems consistent with some aspects of the present invention as detailed in the appended claims.

[0024] In order to solve the problem that in the process of retracting the rotor, the commonly used column structure will form a dead point with the rotor root, causing the rotor and the column to get stuck, such as Figure 1 As shown, this embodiment provides a UAV rotor anti-dead point recovery device, including a recovery push rod device 1 and an anti-dead point blocking column mechanism 2. The recovery push rod device 1 is symmetrically arranged on both sides of the UAV parking platform and can reciprocate toward or away from the UAV parking platform. The anti-dead point blocking column mechanism 2 is movably arranged in the recovery push rod device 1;

[0025] The anti-dead point blocking column mechanism 2 is an eccentric structure that can rotate autonomously. The initial position of the anti-dead point blocking column mechanism in the recovery push rod device 1 is: in the area corresponding to the wing of the UAV close to the center side of the parking platform.

[0026] During the process of the recovery push rod device moving toward the UAV, the anti-dead point blocking column mechanism 2 can contact the wing, thereby pushing it to be retracted;

[0027] like Figure 2As shown, the recovery push rod device 1 includes a push rod base 3, a driving motor 4, a main synchronous pulley 5, a slave synchronous pulley, a synchronous belt 6, a slide rail slider 7 and a fixed rotor lever 8; the driving motor 4 is fixed on the push rod base 3, the main synchronous pulley 5 is connected and cooperated with the driving motor 4, the slave synchronous pulley is fixed to the other end of the push rod base 3, the synchronous belt 6 cooperates with the main synchronous pulley 5 and the slave synchronous pulley, and the fixed rotor lever 8 is fixed on the push rod base 3.

[0028] There are two anti-dead point blocking column mechanisms 2 in the recovery push rod device 1 on each side, which are respectively fixed on the synchronous belts 6 on both sides of the center line connecting the driving pulley 5 and the driven pulley; thereby, the two anti-dead point blocking column mechanisms are driven by the synchronous belt to repeatedly move in opposite directions, and the two anti-dead point blocking column mechanisms correspond to the two UAV wings.

[0029] The position of the fixed rotor lever 8 on the push rod base 3 is aligned with the initial position of the anti-dead point blocking column mechanism. That is, it is fixed at a position corresponding to the inner wing of the UAV to be recovered. When the anti-dead point mechanism 1 moves outward, that is, when the outer wing is about to be recovered, the recovery push rod device 1 is still in a state of advancing toward the UAV, and the fixed rotor lever 8 continues to keep the inner wing in a retracted state to prevent it from unfolding.

[0030] like Figure 3-5 As shown, the anti-dead point stop column mechanism 2 includes a base 9, a rotating column 10, an end cover 11, a spacer 12, a pressure cover 13, a cover plate 14, a bearing 15, a positioning column 16 and a torsion spring 17; the bottom of the base 9 is fixed on the slide rail slider 7, and the side of the base 9 is fixed to the synchronous belt 6; providing support for the anti-dead point stop column mechanism 2;

[0031] A blocking shaft 16 is fixed at the center of the base 9, and four bearings 15 are provided, which are symmetrically arranged along the two sides of the shaft ends of the blocking shaft 18 of the base 9, and two bearings 15 are provided on each side. The inner ring of each bearing 15 is connected and matched with the shaft end of the blocking shaft 18 of the base 9, and the bearing 15 can improve the rotation flexibility; a spacer 12 is installed between the two bearings 15, and the spacer 12 cooperates with the two bearings 15 to play a positioning role;

[0032] The rotating column 10 is sleeved on the outer side of the shaft end of the blocking shaft 18, and the rotating column 10 cooperates with the outer ring of the bearing 15. The pressure cover 13 is fixed on the top of the shaft end of the blocking shaft 18; the pressure cover 13 plays a positioning role for the bearing 15;

[0033] A positioning column 16 is also fixed on the base 9, and the body of the torsion spring 17 is sleeved on the blocking shaft 18, and one end of the torsion arm is inserted into the corresponding hole of the rotating column 10, and the other end of the torsion arm is inserted into the corresponding hole of the positioning column 16; the end cover 11 is fixed on the rotating column 10, and the end cover 11 plays a role in positioning the rotating column 10;

[0034] The rotating column 10 is in the shape of a triangular prism.

[0035] The recovery push rod device 1 is driven to move by the clamping power mechanism. The clamping power mechanism can adopt any structure in the prior art that can achieve the above effect, that is, any structure that drives the recovery push rod devices 1 on both sides of the embodiment to reciprocate with the parking platform as the center. For example, the clamping power mechanism selected in the embodiment includes two oppositely arranged guide rails, and the guide rails and the recovery push rod devices on both sides surround the parking platform therein, and the two ends of the recovery push rod device 1 are installed in the guide rails. The recovery push rod device is driven to move in the guide rails by a motor structure, etc.

[0036] When working, the recovery push rod device 1 moves to the specified position in the direction of the aircraft, and the anti-dead point mechanism 2 will collide with the UAV rotor during the movement. If the contact point forms a dead point angle with the rotation center of the UAV rotor during the contact process, the rotor will hit the rotating column 10. Since the rotating column is an eccentric structure, there are two bearings 15 in the middle, so that the rotating column 10 rotates along the shaft end of the blocking shaft 18 of the base 9. When the rotating column 10 rotates a certain angle, the rotor slides out along the contact surface of the rotating column 10 to avoid the dead point of the aircraft rotor. At the same time, the reset torsion spring 17 works to reset the rotating column 10 to the working position. After that, the two recovery anti-dead point mechanisms 1 are driven by the synchronous belt 5 to move to the outer side of the aircraft to the rotor retracting position at the same time. The push rod device 1 continues to move to the rotor retracting position in the direction of the aircraft. The anti-dead point stop column mechanism 2 and the fixed rotor lever 8 respectively retract the two ends of the blade to the inside of the aircraft to complete the rotor retracting movement.

[0037] This implementation scheme can realize the recovery of the four rotors of the UAV, solve the jamming problem during the recovery process, and ensure the stability of the recovery of the UAV rotors.

[0038] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art that are not disclosed by the present invention. The specification and examples are to be considered exemplary only, and the true scope and spirit of the present invention are indicated by the claims.

Claims

1. A UAV rotor anti-dead point recovery device, characterized in that: It comprises a recovery push rod device (1) and an anti-dead point blocking column mechanism (2), wherein the recovery push rod device (1) is symmetrically arranged on both sides of a drone parking platform and can reciprocate toward or away from the drone parking platform, and the anti-dead point blocking column mechanism (2) is movably arranged in the recovery push rod device (1); The anti-dead point blocking column mechanism (2) is an eccentric structure that can rotate autonomously, and the initial position of the anti-dead point blocking column mechanism in the recovery push rod device (1) is: in the area corresponding to the wing of the UAV close to the center side of the parking platform; The anti-dead point blocking column mechanism (2) is provided with two in the recovery push rod device (1) on each side, and is respectively fixed on the main synchronous belt pulley (5) and the synchronous belts (6) on both sides of the line connecting the centers of the synchronous belt pulleys; the position of the fixed rotor lever (8) on the push rod base (3) is aligned with the initial position of the anti-dead point blocking column mechanism; The anti-dead point blocking column mechanism (2) comprises a base (9), a rotating column (10), an end cover (11), a spacer (12), a pressure cover (13), a cover plate (14), a bearing (15), a positioning column (16) and a torsion spring (17); the bottom of the base (9) is fixed on the slide rail slider (7), and the side of the base (9) is fixed to the synchronous belt (6); A blocking shaft (18) is fixed at the center of the base (9), and four bearings (15) are provided, which are symmetrically arranged along the two sides of the axial end of the blocking shaft (18) of the base (9), and two bearings (15) are provided on each side. The inner ring of each bearing (15) is connected and matched with the axial end of the blocking shaft (18) of the base (9), and a spacer (12) is installed between the two bearings (15). The rotating column (10) is sleeved on the outer side of the axial end of the blocking shaft (18), and the rotating column (10) is matched with the outer ring of the bearing (15). The pressure cover (13) is fixed on the top of the axial end of the blocking shaft (18); a positioning column (16) is also fixed on the base (9), and the body of the torsion spring (17) is sleeved on the blocking shaft (18), and one end of the torsion arm is inserted into the corresponding hole of the rotating column (10), and the other end of the torsion arm is inserted into the corresponding hole of the positioning column (16); the end cover (11) is fixed on the rotating column (10).

2. The anti-dead point recovery device for UAV rotor according to claim 1, characterized in that: The recovery push rod device (1) comprises a push rod base (3), a drive motor (4), a main synchronous pulley (5), a slave synchronous pulley, a synchronous belt (6), a slide rail slider (7) and a fixed rotor lever (8); the drive motor (4) is fixed to the push rod base (3), the main synchronous pulley (5) is connected and matched with the drive motor (4), the slave synchronous pulley is fixed to the other end of the push rod base (3), the synchronous belt (6) is matched with the main synchronous pulley (5) and the slave synchronous pulley, and the fixed rotor lever (8) is fixed to the push rod base (3).

3. The anti-dead point recovery device for UAV rotor according to claim 1, characterized in that: The rotating column (10) is in the shape of a triangular prism.

4. The anti-dead point recovery device for UAV rotor according to claim 1, characterized in that: The recovery push rod device (1) is driven to move by a clamping power mechanism, the clamping power mechanism comprises two guide rails arranged opposite to each other, the guide rails and the recovery push rod devices on both sides surround the parking platform therein, and the two ends of the recovery push rod device (1) are mounted in the guide rails.

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