Tilting rotor module and aircraft

Abstract

The utility model discloses a tilt rotor module and an aircraft. The tilt rotor module comprises a rotating shaft and two rotor assemblies assembled at the two ends of the rotating shaft. The tilt rotor module further comprises a mounting frame which is fixedly mounted in a fuselage of the unmanned aerial vehicle or forms a part of the fuselage of the unmanned aerial vehicle; the driving motor is mounted on the mounting frame and is in transmission connection with the rotating shaft through a transmission assembly, so that the rotating shaft can circumferentially rotate in a reciprocating manner around the axis direction of the rotating shaft; the limiting assembly comprises two proximity switches which are fixedly mounted on the mounting frame and are oppositely arranged; in addition, a limiting rod is arranged on the rotating shaft in the radial direction, and the trigger ends of the two proximity switches are both located on the rotating path of the limiting rod. According to the technical scheme, the overall structural design is simple and reasonable, a turnover mechanism does not need to be designed for each rotor wing assembly, the whole machine is more convenient to disassemble, assemble and maintain, and the production cost can be effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to unmanned plane technical field especially, it relates to a kind of tilting rotor module and aircraft. BACKGROUND

[0002] Design tilting rotor on unmanned aerial vehicle can make it have the ability of vertical take-off and landing and horizontal flight, in current design, tilting rotor generally includes the connecting shaft extending from the aircraft body to two sides direction, tiltable arrangement in the rotor assembly of the connecting shaft far from the aircraft body one end, the rotor assembly is the existing mature whole assembly, to make it have the purpose of tilting, need be connected by a tilting mechanism in the position of the connecting shaft and the rotor assembly interface.For specific can be rotor assembly pivot assembly connecting shaft is driven by tilting motor, to make it pivot connection direction tilts.Obviously, this structure is relatively bulky as a whole, and needs to adapt a tilting structure for each rotor assembly, disassembly and maintenance are inconvenient, and the cost is also higher. SUMMARY

[0003] In view of the above problems existing in the prior art, a tilting rotor module and an aircraft are provided to overcome at least one of the above technical defects.

[0004] The specific technical solutions are as follows:

[0005] A tilting rotor module applied to an unmanned aerial vehicle, comprising a rotating shaft and two rotor assemblies assembled at both ends of the rotating shaft; the tilting rotor module further comprises:

[0006] A mounting bracket fixedly installed in the fuselage of the unmanned aerial vehicle or formed as part of the unmanned aerial vehicle fuselage;

[0007] A drive motor installed on the mounting bracket and connected to the rotating shaft through a transmission assembly, so that the rotating shaft can rotate circumferentially around its axis direction;

[0008] A limiting assembly comprising two proximity switches fixedly installed on the mounting bracket and arranged oppositely;

[0009] And a limiting rod is radially arranged on the rotating shaft, and the triggering ends of the two proximity switches are located on the rotating path of the limiting rod. The overall structure is simple and reasonable, without the need to design a tilting mechanism for each rotor assembly, making the disassembly and maintenance of the whole machine more convenient, and effectively reducing the production cost.

[0010] Preferably, the transmission assembly comprises a gear and an arc-shaped gear rack engaged with each other, the gear is sleeved on the motor shaft of the drive motor, and the arc-shaped gear rack is installed on the outer periphery of the rotating shaft.

[0011] Preferably, the rotating shaft and the driving motor are horizontally arranged, and in a top view, the axis of the motor shaft is perpendicular to the axis of the rotating shaft, and the teeth on the gear and the arc-shaped rack are helical teeth.

[0012] Preferably, the mounting frame is in the shape of a ring-shaped cylinder, and two through holes for the rotating shaft are formed in the cylinder wall of the mounting frame.

[0013] Preferably, a crossbeam is formed above the rotating shaft in the mounting frame, and the driving motor is fixed to the crossbeam.

[0014] Preferably, a mounting bracket is detachably mounted on the crossbeam, and the lower end of the mounting bracket is in the shape of an arc and detachably assembled with two proximity switches on the two sides.

[0015] Preferably, the rotating range of the limiting rod between the two proximity switches is 180 degrees.

[0016] Preferably, the proximity switches, the driving motor and the rotor assembly are communicatively connected to a control device arranged in the fuselage of the unmanned aerial vehicle.

[0017] The utility model also provides an aircraft, including fuselage main body, and the assembly is on the fuselage main body like the above-mentioned tilting rotor module.

[0018] The above technical scheme has the following beneficial effects:

[0019] The tilting rotor module includes a rotating shaft, a rotor assembly, a mounting frame, a driving motor, a transmission assembly and a limiting assembly. The driving motor drives the rotating shaft to rotate circumferentially through the transmission assembly to promote the tilting of the rotor assembly. The limiting assembly and the limiting rod arranged on the rotating shaft form a stroke limiting structure. Each electrical device is communicatively connected to a control device in the fuselage to promote the circumferential rotation of the rotating shaft and the rotor assembly and stop the rotation after the rotating shaft and the rotor assembly are rotated to the position. At the same time, the direction of the next rotation is changed to reverse rotation. The overall structure design is simple and reasonable. A turnover mechanism does not need to be designed for each rotor assembly, which makes the disassembly, maintenance and assembly of the whole machine more convenient and effectively reduces the production cost. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a perspective view of the tilting rotor module of the utility model;

[0021] Figure 2 It is a partial enlarged view in Figure 1

[0022] Figure 3 It is an exploded view of the transmission assembly, the limiting assembly and the driving assembly in the tilting rotor module of the utility model;

[0023] Figure 4 It is a perspective view of the aircraft of the utility model. ​DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the following embodiments are combined with the drawings to specifically describe the utility model.

[0025] Embodiment one,

[0026] Referring to Figures 1 to 3 The tilt-rotor module provided by the embodiment is applied to an unmanned aerial vehicle, and comprises a rotating shaft 2 and two rotor assemblies 3 assembled at two ends of the rotating shaft 2. The tilt-rotor module further comprises:

[0027] The mounting bracket 1 is fixedly mounted in the fuselage of the unmanned aerial vehicle or constitutes a part of the fuselage of the unmanned aerial vehicle.

[0028] The driving motor 4 is mounted on the mounting bracket 1 and is drivingly connected to the rotating shaft 2 through the transmission assembly, so that the rotating shaft 2 can reciprocatingly rotate around the axis direction thereof.

[0029] The limiting assembly comprises two proximity switches 10 fixedly arranged on the mounting bracket 1.

[0030] In addition, a limiting rod 11 is arranged on the rotating shaft 2 in the radial direction, the triggering ends of the two proximity switches 10 are located on the rotating path of the limiting rod 11, and the proximity switch 10, the driving motor 4 and the rotor assembly 3 are all communicatively connected to the control device arranged in the fuselage of the unmanned aerial vehicle.

[0031] Based on the above technical scheme, the tilt-rotor module comprises the rotating shaft 2, the rotor assembly 3, the mounting bracket 1, the driving motor 4, the transmission assembly and the limiting assembly. The driving motor 4 drives the rotating shaft 2 to rotate circumferentially through the transmission assembly to promote the tilt of the rotor assembly 3. The limiting assembly and the limiting rod 11 arranged on the rotating shaft 2 constitute a stroke limiting structure. Each electrical device is communicatively connected to the control device in the fuselage, so as to promote the rotating shaft 2 and the rotor assembly 3 to continue to rotate circumferentially and stop after rotating to the position. At the same time, the direction of the next rotation is changed to reverse rotation. Specifically, the proximity switch 10 sends a signal to the control device after being triggered, and the control device controls the driving motor 4 to stop and change the direction of subsequent rotation. The driving motor 4 is preferably an alternating current motor with a speed reducer. A stepping motor and a servo motor can also be used to achieve the above purpose. The driving motor 4 is a part of the existing components, so the detailed description is omitted here. The overall structure design is simple and reasonable. It is not necessary to design a turnover mechanism for each rotor assembly 3, so that the disassembly and maintenance of the whole machine are more convenient, and the production cost can be effectively reduced.

[0032] In a preferred embodiment, the transmission assembly comprises a gear 12 and an arc-shaped rack 13, the gear 12 is sleeved on the motor shaft 14 of the driving motor 4, and the arc-shaped rack 13 is installed on the outer periphery of the rotating shaft 2. Specifically, the gear 12 and the arc-shaped rack 13 form a worm gear transmission mechanism, which can smoothly transmit power. Further, the rotating shaft 2 and the driving motor 4 are both horizontally arranged, and in the top view, the axis of the motor shaft 14 is perpendicular to the axis of the rotating shaft 2, and the teeth on the gear 12 and the arc-shaped rack 13 are all helical tooth structures. Compared with the structure of straight-tooth engagement, the helical tooth structure can make the power transmission more stable and not easy to come out, but obviously, arranging the motor shaft 14 and the rotating shaft 2 in parallel positions and designing the gear 12 and the arc-shaped rack 13 as straight-tooth structures can also achieve the above transmission purpose, and the arc-shaped rack 13 can also be designed as a straight-tooth gear sleeved on the rotating shaft 2, or even the transmission assembly can be designed as a connecting rod structure, all of which can achieve the purpose of driving the rotating shaft 2 to rotate around its own axis, and are not limited thereto.

[0033] As a further preferred embodiment, the mounting bracket 1 is in the shape of a ring-shaped cylinder as a whole, and two through holes for passing through the rotating shaft 2 are formed in the cylinder wall of the mounting bracket 1. Further, a crossbeam 8 is formed in the mounting bracket 1 above the rotating shaft 2, and the driving motor 4 is fixed on the crossbeam 8. Further, a mounting bracket 9 is detachably mounted on the crossbeam 8, the lower end of the mounting bracket 9 is in the shape of an arc, and two proximity switches 10 are detachably mounted on the two sides of the lower end of the mounting bracket 9. Further, the rotating range of the limiting rod 11 between the two proximity switches 10 is 90 degrees, that is, the two limiting switches correspond to the positions of the two rotors in the horizontal state and the vertical state. For special needs, the rotating range can also be designed as other angles, such as 60 degrees, 120 degrees, etc., and only a mounting bracket 9 with a corresponding range needs to be replaced.

[0034] In addition, as shown in Figure 3 The triggering end of the proximity switch 10 is an elastic pressing plate, and the other end has a terminal for electrically connecting to the control device through a wire, but an independent proximity switch 10 can also be used, that is, a button cell is built-in, and communication components are used, which can be achieved through 4g / 5g wireless network, Bluetooth, nfc, zigbee, etc. Various wireless communication methods, including the rotor assembly 3 and the control device can also communicate through similar wired or wireless methods, which are prior art, so the communication connection method is omitted here.

[0035] Example two,

[0036] Referring to Figure 4As shown in the figure, the aircraft provided by the embodiment comprises a fuselage body 7 and at least one tilting rotor module as described in the above embodiment one assembled on the fuselage body 7. The aircraft is provided with the functions of vertical take-off and landing and horizontal flight, and is more flexible and flexible.

[0037] The above merely describes the preferred embodiments of the present application, which are merely illustrative but not restrictive. It is understood by those skilled in the art that many changes, modifications and even equivalents can be made to the present application within the spirit and scope of the claims of the present application, but all will fall within the protection scope of the present application.

Claims

1. A tilting rotor module applied to an unmanned aerial vehicle, comprising a rotating shaft (2) and two rotor assemblies (3) mounted on both ends of the rotating shaft (2); characterized in that, The tilting rotor module further comprises: a mounting frame (1) fixedly mounted in or as part of the fuselage of the unmanned aerial vehicle; a drive motor (4) mounted on the mounting frame (1) and drivingly connected to the rotating shaft (2) through a transmission assembly, so that the rotating shaft (2) can rotate circumferentially around its own axis direction; a limiting assembly comprising two proximity switches (10) fixedly mounted on the mounting frame (1) and arranged oppositely; and a limiting rod (11) radially arranged on the rotating shaft (2), the triggering ends of the two proximity switches (10) being located on the rotating path of the limiting rod (11); the transmission assembly comprises a gear (12) and an arc-shaped rack (13) engaged with each other, the gear (12) being sleeved on the motor shaft (14) of the drive motor (4), and the arc-shaped rack (13) being mounted on the outer periphery of the rotating shaft (2).

2. The tiltrotor module of Claim 1, wherein, The rotating shaft (2) and the drive motor (4) are both arranged horizontally, and in the top view, the axis of the motor shaft (14) is perpendicular to the axis of the rotating shaft (2), and the teeth on the gear (12) and the arc-shaped rack (13) are all helical teeth.

3. The tiltrotor module of Claim 2, wherein: The mounting frame (1) is in the shape of a ring-shaped cylinder as a whole, and two through holes for the rotating shaft (2) to pass through are formed in the cylinder wall of the mounting frame (1).

4. The tiltrotor module of Claim 3, wherein, A cross beam (8) is formed above the rotating shaft (2) in the mounting frame (1), and the drive motor (4) is fixedly mounted on the cross beam (8).

5. The tiltrotor module of Claim 4, wherein, An installation support (9) is also detachably mounted on the cross beam (8), and the lower end of the installation support (9) is in the shape of an arc and detachably assembled with one proximity switch (10) on each side.

6. The tiltrotor module of Claim 5, wherein, The rotating range of the limiting rod (11) between the two proximity switches (10) is 90 degrees.

7. The tiltrotor module of Claim 1, wherein: The proximity switches (10), the drive motor (4) and the rotor assembly (3) are all communicatively connected to a control device arranged in the fuselage of the unmanned aerial vehicle.

8. An aircraft, characterized in that The unmanned aerial vehicle comprises a fuselage body (7) and at least one tilting rotor module as claimed in any one of claims 1 to 7 assembled on the fuselage body (7).

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