New tilt mechanism and drone

Abstract

The embodiment of the present invention discloses a novel tilting mechanism and a UAV, which are applied to the technical field of UAVs. The novel tilting mechanism comprises a tilting follower rocker, a rocker connecting rod, a tilting power rocker, a rotating power mechanism and a locking assembly comprising a first locking structure and a second locking structure. The tilting follower rocker is installed on the tilting shaft of the UAV, and a first locking structure is provided thereon. The fixed end of the tilting power rocker is drivingly connected to the output shaft of the rotating power mechanism. The first free end of the tilting power rocker is connected to the free end of the tilting follower rocker through the rocker connecting rod. The force arm of the tilting follower rocker is longer than the force arm of the tilting power rocker. The second free end of the tilting power rocker is connected to the second locking structure. When the tilting follower rocker is driven by the tilting power rocker, the first locking structure and the second locking structure can lock the rotation of the tilting follower rocker. The novel tilting mechanism can save energy, improve efficiency and extend the service life of the tilting follower rocker and the UAV.

Description

Technical Field

[0001] The invention belongs to the technical field of unmanned aerial vehicles, and in particular relates to a novel tilting mechanism and a unmanned aerial vehicle. Background Art

[0002] At present, vertical take-off and landing UAVs that use motor tilting to switch between rotor mode and fixed-wing mode generally add a servo under the motor to directly drive the motor to turn. However, since the center of the motor is far away from the servo, the servo drive arm increases, resulting in excessive load on the servo. Regardless of whether the UAV uses rotor mode or fixed-wing mode, the servo is always in a loaded state, with low efficiency and short life. Summary of the invention

[0003] The present invention provides a novel tilting mechanism and a UAV, aiming to solve the problem that the servo is always in a load state, has low efficiency and short lifespan by adding a locking component after the UAV is switched to a fixed-wing mode.

[0004] The embodiment of the present invention provides a novel tilting mechanism for tilting the direction of a motor of a drone, comprising:

[0005] A tilt follower rocker arm, a rocker arm connecting rod, a tilt power rocker arm, a rotary power mechanism and a locking assembly including a first locking structure and a second locking structure;

[0006] The tilt follower rocker arm is installed on the tilt shaft of the UAV, the first locking structure is provided on the tilt follower rocker arm, the tilt shaft is connected to the motor of the UAV, and the motor of the UAV changes direction as the tilt shaft rotates;

[0007] The fixed end of the tilting power rocker arm is drivingly connected to the output shaft of the rotating power mechanism;

[0008] The first free end of the tilt power rocker arm is connected to the free end of the tilt follower rocker arm through the rocker arm connecting rod, and the force arm of the tilt follower rocker arm is longer than the force arm of the tilt power rocker arm;

[0009] The second free end of the tilting power rocker arm is connected to the second locking structure;

[0010] The rotating power mechanism drives the tilt power rocker arm to rotate, and the tilt power rocker arm drives the tilt follower rocker arm to rotate through the rocker arm connecting rod. When the tilt follower rocker arm is driven by the tilt power rocker arm, it rotates until the first locking structure and the second locking structure work together to lock the tilt follower rocker arm to stop rotating.

[0011] Optionally, the first locking structure is a locking slot opening at the edge of the tilt follower rocker arm; the second locking structure includes a locking steel pin, the locking steel pin matches the locking slot, and the locking steel pin is inserted into the locking slot to lock the tilt follower rocker arm to stop rotating.

[0012] Optionally, the second locking structure also includes a first locking link and a second locking link; the first locking link and the second locking link are respectively installed on both sides of the second free end of the tilt power rocker arm, and the first locking link and the second locking link are symmetrically positioned.

[0013] Optionally, the middle diameter of the locking steel pin is larger than the diameters at both ends; one end of the first locking link is connected to the second free end of the tilt power rocker arm, and the other end is sleeved on one of the two ends of the locking steel pin; one end of the second locking link is connected to the second free end of the tilt power rocker arm, and the other end is sleeved on the other end of the locking steel pin.

[0014] Optionally, the middle portion of the locking steel pin matches the locking slot, and is inserted into the locking slot under the push of the first locking link and the second locking link driven by the tilting power rocker arm.

[0015] Optionally, the new tilting mechanism also includes: a rotating power mechanism frame; a locking steel pin guide rail is arranged on the side of the rotating power mechanism frame, and the locking steel pin reciprocates in the locking steel pin guide rail under the push and pull of the first locking link and the second locking link driven by the tilting power rocker arm.

[0016] Optionally, the tilt axis is a carbon fiber tube.

[0017] Optionally, the second locking structure also includes a locking link; the locking link is installed on the outer side of the second free end of the tilting power rocker arm, and the outer side is the other side of the second free end relative to the side where the rotating power mechanism is located.

[0018] Optionally, one end of the locking link is connected to the second free end of the tilting power rocker arm, and the other end is sleeved on the middle part of the locking steel pin.

[0019] An embodiment of the present invention further provides a drone, wherein a novel tilt mechanism as described above is installed on the tilt axis of the drone, the tilt axis is connected to a motor of the drone, and the motor of the drone changes direction as the tilt axis rotates.

[0020] It can be seen from the above embodiments of the present invention that the tilt follower rocker arm, the rocker arm connecting rod, the tilt power rocker arm, the rotating power mechanism, and the locking assembly including the first locking structure and the second locking structure, wherein the fixed end of the tilt power rocker arm is drivingly connected to the output shaft of the rotating power mechanism, the first free end of the tilt power rocker arm is connected to the free end of the tilt follower rocker arm through the rocker arm connecting rod, the force arm of the tilt follower rocker arm is longer than the force arm of the tilt power rocker arm, the tilt follower rocker arm is installed on the tilt shaft of the UAV, the tilt shaft is connected to the motor of the UAV, the motor of the UAV changes direction with the rotation of the tilt shaft, the first locking structure is provided on the tilt follower rocker arm, the second free end of the tilt power rocker arm is connected to the second locking structure, the rotating The power mechanism drives the tilt power rocker arm to rotate, and the tilt power rocker arm drives the tilt follower rocker arm to rotate through the rocker arm connecting rod. When the tilt follower rocker arm is driven by the tilt power rocker arm and rotates to the point where the first locking structure and the second locking structure work together to lock the tilt follower rocker arm, the tilt follower rocker arm stops rotating, and the tilt shaft also stops accordingly. The UAV motor changes direction with the rotation of the tilt shaft, completing the switching of the UAV flight mode from the rotor mode to the fixed-wing mode and locking it in the fixed-wing mode. The direction of the motor can be locked without thrust support from the rotating power mechanism, and the UAV can also fly smoothly, so that the rotating power mechanism can be separated from the load state, saving energy, improving flight efficiency, and extending service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] 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, the drawings in the following description are only some embodiments of the present invention.

[0022] Figure 1 An exploded diagram of a novel tilting mechanism provided by an embodiment of the present invention;

[0023] Figure 2 A side view of a novel tilting mechanism provided by an embodiment of the present invention;

[0024] Figure 3 A schematic diagram of the assembly of a novel tilting mechanism provided by an embodiment of the present invention;

[0025] Figure 4 A front view of a novel tilting mechanism provided by an embodiment of the present invention;

[0026] Figure 5 A top view of a novel tilting mechanism provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0027] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0028] See also Figures 1 to 5 , Figure 1 An exploded diagram of a novel tilting mechanism provided by an embodiment of the present invention; Figure 2 A side view of a novel tilting mechanism provided by an embodiment of the present invention; Figure 3 A schematic diagram of the assembly of a novel tilting mechanism provided by an embodiment of the present invention; Figure 4 A front view of a novel tilting mechanism provided by an embodiment of the present invention; Figure 5 A top view of a novel tilting mechanism provided in an embodiment of the present invention.

[0029] The embodiment of the present invention provides a new type of tilting mechanism, which can be used for equipment that needs to be tilted and locked at a certain angle. Preferably, it is used to tilt the direction of the motor of the drone, that is, the direction of the force of the propeller of the drone, to achieve the switching of the drone's flight between the rotor mode and the fixed-wing mode. The embodiment of the present invention is described by taking the direction of the motor of the drone as an example.

[0030] The novel tilting mechanism comprises: a tilting follower rocker arm 10, a rocker arm connecting rod 20, a tilting power rocker arm 30, a rotating power mechanism 40 and a locking assembly 50 comprising a first locking structure 51 and a second locking structure 52;

[0031] The tilt follower rocker 10 is mounted on the tilt shaft 60 of the drone, and the two ends of the tilt shaft 60 are connected to the drone motor and propeller (not shown in the figure). The motor and propeller of the drone change their orientation synchronously with the rotation of the tilt shaft 60 to meet the flight requirements of the drone. The tilt shaft 60 is preferably a carbon fiber tube, which can improve the strength of the tilt shaft 60 and reduce the weight of the new tilt mechanism.

[0032] Furthermore, a first locking structure 51 is provided on the tilt follower rocker arm 10 . Specifically, the first locking structure 51 is a locking slot opened at the edge of the tilt follower rocker arm 10 .

[0033] The fixed end of the tilting power rocker arm 30 is drivingly connected to the output shaft of the rotating power mechanism 40. On the UAV, the rotating power mechanism 40 is specifically a steering gear. The steering gear 40 can drive the tilting power rocker arm 30 to rotate.

[0034] The first free end of the tilt power rocker arm 30 is connected to the free end of the tilt follower rocker arm 10 through the rocker arm connecting rod 20. The force arm of the tilt follower rocker arm 10 is longer than the force arm of the tilt power rocker arm 30. When the tilt follower rocker arm 10 rotates by an angle, the tilt power rocker arm 30 rotates by an angle greater than the angle.

[0035] Specifically, the rocker arm link 20 can be a 35 mm (millimeter) aluminum link, which can reduce the weight of the new tilting mechanism.

[0036] The second free end of the tilt power rocker arm 30 is connected to the second locking structure 52. Specifically, the second locking structure 52 includes a locking steel pin 53. The locking steel pin 53 matches the locking slot 51. The locking steel pin 53 is inserted into the locking slot 51 to lock the tilt follower rocker arm 10 to stop rotating. The second locking structure 52 also includes a first locking link 54 and a second locking link 55. The two locking links are respectively installed on both sides of the tilt power rocker arm 30, and the positions are symmetrically arranged relative to the tilt power rocker arm 30, that is, the two locking links sandwich the tilt power rocker arm 30 in the middle.

[0037] The diameter of the middle part of the locking steel pin 53 is larger than the diameter of the two ends, that is, the middle part of the locking steel pin 53 matches the locking slot 51, and can be pushed by the first locking link 54 and the second locking link 55 to enter the locking slot 51 under the push of the tilt power rocker arm 30. One end of the first locking link 54 is connected to the second free end of the tilt power rocker arm 30, and the other end of the first locking link 54 is sleeved with one end of the locking steel pin 53; similarly, one end of the second locking link 55 is also connected to the second free end of the tilt power rocker arm 30, and the other end of the second locking link 55 is sleeved with the other end of the locking steel pin 53. The first locking link 54 and the second locking link 55 jointly drive the locking steel pin 53 to move.

[0038] Furthermore, the novel tilting mechanism further comprises: a rotating power mechanism frame 70, and a locking steel pin guide rail 71 is provided on the side of the rotating power mechanism frame 70. Figure 1 As shown, this side is the side where the first locking link 54 and the second locking link 55 are located. The locking steel pin 53 reciprocates in the locking steel pin guide rail 71 under the push and pull of the first locking link 54 and the second locking link 55 driven by the tilting power rocker arm 30.

[0039] The new tilt mechanism tilts the direction of the UAV motor, and the working principle of locking the direction: the servo 40 drives the tilt power rocker arm 30 to rotate, and the tilt power rocker arm 30 drives the rocker arm connecting rod 20 and the tilt follower rocker arm 10 to rotate. The force arm of the tilt follower rocker arm 10 is longer than the force arm of the tilt power rocker arm 30. For every angle that the tilt follower rocker arm 10 rotates, the angle of rotation of the tilt power rocker arm 30 needs to be greater than the angle. The tilt follower rocker arm 10 is installed on the tilt shaft 60 of the UAV. The tilt shaft 60 is connected to the motor and propeller of the UAV. The tilt shaft 60 rotates with the rotation of the tilt follower rocker arm 10, and at the same time drives the motor and propeller of the UAV to tilt. When the UAV is in rotor mode, the direction of the motor is pointing to the ground, and the servo 40 needs to continuously maintain the position output to complete the stable flight of the UAV. When it rotates to Figure 2 When the rocker arm connecting rod 20 shown overlaps with the tilt power rocker arm 30, when the tilt power rocker arm 30 rotates a preset small angle (the preset small angle is related to the arm length of the tilt power rocker arm 30 and the tilt follower rocker arm 10, and the setting parameters of the locking assembly 50, and the size of the preset small angle can be controlled by the above setting parameters), the tilt follower rocker arm 10 hardly rotates, and the clearance fit after the new tilt mechanism is physically assembled on the drone, then the tilt follower rocker arm 10 has stopped at this time, and the tilt power rocker arm 30 continues to rotate the preset small angle, pushing the first steel pin connecting rod 54 and the second steel pin connecting rod 55 to push the locking steel pin 53 along the locking steel pin guide rail 71 into the locking slot 51 of the tilt follower rocker arm 10 to achieve the locking of the tilt follower rocker arm 10. At this time, the motor of the drone is directed to the rear of the drone body and is in fixed-wing flight mode, that is, at this moment, the direction of the motor can be locked without thrust support from the servo 40, and the drone can also fly stably, thereby saving energy.

[0040] It should be noted that the new tilt mechanism in this embodiment can have only one locking link, which is installed on the outside of the second free end of the tilt power rocker arm 30. The outside refers to the other side of the second free end relative to the side where the rotating power mechanism 40 is located, that is, the side of the second free end close to the rotating power mechanism 40 is the inner side, and the other side away from the rotating power mechanism 40 is the outer side. The locking steel pin is cylindrical and has a circular cross-section. One end of the locking link is connected to the second free end of the tilt power rocker arm 30, and the other end of the locking link is sleeved on the middle part of the locking steel pin. The locking steel pin reciprocates in the locking steel pin guide rail 71 when the tilt power rocker arm 30 drives the locking link to push and pull.

[0041] The novel tilting mechanism provided by the embodiment of the present invention comprises a tilt follower rocker arm, a rocker arm connecting rod, a tilt power rocker arm, a rotating power mechanism, and a locking assembly comprising a first locking structure and a second locking structure, wherein the fixed end of the tilt power rocker arm is drivingly connected to the output shaft of the rotating power mechanism, the first free end of the tilt power rocker arm is connected to the free end of the tilt follower rocker arm through the rocker arm connecting rod, the force arm of the tilt follower rocker arm is longer than the force arm of the tilt power rocker arm, the tilt follower rocker arm is installed on the tilt shaft of the UAV, the tilt shaft is connected to the motor of the UAV, the motor of the UAV changes direction with the rotation of the tilt shaft, the first locking structure is provided on the tilt follower rocker arm, and the second free end of the tilt power rocker arm is connected to the second locking structure The rotating power mechanism drives the tilt power rocker arm to rotate, and the tilt power rocker arm drives the tilt follower rocker arm to rotate through the rocker arm connecting rod. When the tilt follower rocker arm is driven by the tilt power rocker arm and rotates to the point where the first locking structure and the second locking structure work together to lock the tilt follower rocker arm, the tilt follower rocker arm stops rotating, and the tilt shaft also stops accordingly. The UAV motor changes direction with the rotation of the tilt shaft, completing the switching of the UAV flight mode from the rotor mode to the fixed-wing mode and locking it in the fixed-wing mode. The direction of the motor can be locked without thrust support from the rotating power mechanism, and the UAV can also fly smoothly, so that the rotating power mechanism can be separated from the load state, saving energy, improving flight efficiency, and extending service life.

[0042] An embodiment of the present invention also provides a drone, wherein a new tilt mechanism as described in the above embodiment is installed on the tilt axis of the drone, the tilt axis is connected to the motor of the drone, the motor of the drone changes direction as the tilt axis rotates, and the locking assembly of the new tilt mechanism can lock the motor in the direction of the drone in fixed-wing mode. The specific structure of the new tilt mechanism is described above.

[0043] The drone provided by the embodiment of the present invention can tilt the tilt axis of the drone with the new tilt mechanism to complete the switching of the drone flight mode from the rotor mode to the fixed-wing mode and lock it in the fixed-wing mode. The direction of the motor can be locked without thrust support from the rotating power mechanism, and the drone can also fly smoothly, so that the rotating power mechanism can be separated from the load state, saving energy, improving flight efficiency, and extending service life.

[0044] The above is a description of the novel tilting mechanism and UAV provided by the present invention. For technicians in this field, according to the ideas of the embodiments of the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A novel tilting mechanism, used for tilting the direction of the motor of a drone, characterized in that: include: A tilt follower rocker arm, a rocker arm connecting rod, a tilt power rocker arm, a rotary power mechanism and a locking assembly including a first locking structure and a second locking structure; The tilt follower rocker arm is installed on the tilt shaft of the UAV, the first locking structure is provided on the tilt follower rocker arm, the tilt shaft is connected to the motor of the UAV, and the motor of the UAV changes direction as the tilt shaft rotates; The fixed end of the tilting power rocker arm is drivingly connected to the output shaft of the rotating power mechanism; The first free end of the tilt power rocker arm is connected to the free end of the tilt follower rocker arm through the rocker arm connecting rod, and the force arm of the tilt follower rocker arm is longer than the force arm of the tilt power rocker arm; The second free end of the tilting power rocker arm is connected to the second locking structure; The rotating power mechanism drives the tilt power rocker arm to rotate, and the tilt power rocker arm drives the tilt follower rocker arm to rotate through the rocker arm connecting rod. When the tilt follower rocker arm is driven by the tilt power rocker arm, it rotates until the first locking structure and the second locking structure work together to lock the tilt follower rocker arm to stop rotating; the first locking structure is a locking slot, which opens at the edge of the tilt follower rocker arm; The second locking structure includes a locking steel pin, the locking steel pin matches the locking slot, the locking steel pin is inserted into the locking slot, and the tilt follower rocker arm is locked to stop rotating; The second locking structure also includes a first locking link; One end of the first locking link is connected to the second free end of the tilting power rocker arm, and the other end is sleeved on one of the two ends of the locking steel pin.

2. The novel tilting mechanism according to claim 1 is characterized in that: The second locking structure also includes a second locking link; The first locking link and the second locking link are respectively installed on both sides of the second free end of the tilt power rocker arm, and the first locking link and the second locking link are symmetrically positioned.

3. The novel tilting mechanism according to claim 2 is characterized in that: The middle diameter of the locking steel pin is larger than the diameters at both ends; One end of the second locking link is connected to the second free end of the tilting power rocker arm, and the other end is sleeved on the other end of the locking steel pin.

4. The novel tilting mechanism according to claim 3 is characterized in that: The middle part of the locking steel pin matches the locking slot, and is inserted into the locking slot under the push of the first locking link and the second locking link driven by the tilting power rocker arm.

5. The novel tilting mechanism according to claim 2 is characterized in that: The novel tilting mechanism further comprises: a rotating power mechanism frame; A locking steel pin guide rail is provided on the side of the rotating power mechanism frame, and the locking steel pin reciprocates in the locking steel pin guide rail under the push and pull of the first locking link and the second locking link driven by the tilting power rocker arm.

6. The novel tilting mechanism according to any one of claim 5, characterized in that: The tilt axis is a carbon fiber tube.

7. A drone, characterized in that: The tilt axis of the UAV is equipped with a novel tilt mechanism as described in any one of claims 1 to 6, and the tilt axis is connected to the motor of the UAV, and the motor of the UAV changes direction as the tilt axis rotates.

Images