阅读说明：本技术 一种倾转旋翼无人机旋翼短舱精准轻便型倾转机构 (Accurate lightweight mechanism that verts in rotor unmanned aerial vehicle rotor nacelle that verts ) 是由 夏青元 廖辉 许立松 张金鑫 周雷 于 2021-09-10 设计创作，主要内容包括：本发明涉及无人机技术领域,公开了一种倾转旋翼无人机旋翼短舱精准轻便型倾转机构,包括机翼连接件、转动连接装置、连接圈、传动机构和旋翼短舱连接头,所述机翼连接件设置在转动连接装置的一侧,所述连接圈设置在转动连接装置的另一侧。本发明倾转机构采用高精度双导程涡轮蜗杆传动设计,蜗杆的齿厚是变化的,这样就可以调整蜗轮蜗杆的间隙达到最佳状态,实现无虚位,另外,当使用过程造成蜗轮蜗杆的间隙变大,可以通过调整蜗杆的轴向位置,使蜗轮蜗杆的间隙变小,相比于传统舵机的方式,其整体虚位很小几乎忽略不计,避免了其他方式虚位过大导致旋翼短舱在运行时的有害晃动,保证倾转旋翼无人机的平稳运行。(The invention relates to the technical field of unmanned aerial vehicles, and discloses a precise and portable tilting mechanism for a rotor nacelle of a tilting rotor unmanned aerial vehicle. The tilting mechanism adopts a high-precision double-lead worm and gear transmission design, the tooth thickness of the worm is changed, so that the gap between the worm and the gear can be adjusted to reach the optimal state, no virtual position is realized, in addition, when the gap between the worm and the gear is enlarged in the using process, the gap between the worm and the gear can be reduced by adjusting the axial position of the worm, compared with the mode of the traditional steering engine, the whole virtual position is very small and almost ignored, the harmful shaking of a rotor wing nacelle during operation caused by overlarge virtual position in other modes is avoided, and the stable operation of the tilting rotor unmanned aerial vehicle is ensured.)

1. The utility model provides an accurate lightweight mechanism that verts in rotor unmanned aerial vehicle rotor nacelle verts, its characterized in that: including wing connecting piece (1), rotation connecting device (2), clamping ring (3), drive mechanism and rotor nacelle connector (5), wing connecting piece (1) sets up in the one side of rotating connecting device 2, clamping ring (3) set up the opposite side of rotating connecting device (2), drive mechanism sets up the opposite side at clamping ring (3), rotor nacelle connector (5) set up the opposite side at drive mechanism.

2. The accurate lightweight mechanism that verts of rotor unmanned aerial vehicle rotor nacelle according to claim 1, its characterized in that: wing connecting piece (1) is used for the fixed connection of tilting mechanism and tilting rotor unmanned aerial vehicle wing.

3. The accurate lightweight mechanism that verts of rotor unmanned aerial vehicle rotor nacelle according to claim 1, its characterized in that: rotate connecting device (2) and be the slewing bearing, slewing bearing inner race passes through screwed connection with wing connecting piece (1), and the outer lane passes through the screw rod to be connected with clamping ring (3), rotor nacelle connector (5), and clamping ring (3) are the dedicated connection spare of these two parts of slewing bearing and rotor nacelle connector (5), play and increase structural strength, reduce the effect of virtual position.

4. The accurate lightweight mechanism that verts of rotor unmanned aerial vehicle rotor nacelle according to claim 1, its characterized in that: the transmission mechanism comprises a tilting turbine (4) and a rotating double-lead-stroke turbine system (6), the tilting turbine (4) is fixed on the rotor nacelle connector (5) through screws, an inner ring of the tilting turbine is nested on the outer ring of a cylindrical part of the rotor nacelle connector (5) and is fixed through screw hole positions, and the tilting turbine (4) is matched with a worm part of the rotating double-lead-stroke turbine system (6) and is driven to rotate by the tilting turbine (4).

5. The accurate lightweight mechanism that verts of rotor unmanned aerial vehicle rotor nacelle according to claim 4, its characterized in that: the rotating double-lead vortex rod system (6) is connected with a screw hole above a view of the wing connecting piece (1) through a screw, the worm rotates to drive the turbine, and the turbine is driven to rotate the movable part of the whole tilting mechanism.

Technical Field

The invention relates to the technical field of unmanned aerial vehicles, in particular to a precise and portable tilting mechanism for a rotor nacelle of a tilting rotor unmanned aerial vehicle.

Background

The rotor wing aircraft is a novel unmanned aircraft, and has the flight characteristics of a fixed wing aircraft and a helicopter, and when the helicopter is in a helicopter mode, the rotor wing provides lift force, so that hovering and low-speed flight can be carried out (at the moment, the rotor wing nacelle is in a vertical state); after the rotor wing nacelle is tilted to the horizontal position, the rotor wing provides forward pulling force and relies on the wing to provide lift force, and the rotor wing nacelle becomes a fixed-wing aircraft to realize high-speed flight.

As a novel aircraft, the rotor unmanned aerial vehicle that verts possesses flight efficiency height, noise low, the loading capacity is big, mobility advantage such as good, and the research to rotor unmanned aerial vehicle that verts is also more and more at present domestic and abroad. The tilting rotor unmanned aerial vehicle has the performance advantages of a fixed wing and a helicopter, and the tilting mechanism of the rotor nacelle plays an important role in the tilting rotor unmanned aerial vehicle. The merit of mechanism of verting has decided its reliability of process of verting, and the mechanism product of verting of ripe on the market is almost in market blank at present, and consequently, a rotor nacelle that is reliable and stable does not have virtual position mechanism of verting has huge positive effect to verting rotor unmanned aerial vehicle's research and development.

Disclosure of Invention

The invention aims to provide a precise and portable tilting mechanism for a rotor nacelle of a tilting rotor unmanned aerial vehicle, which solves the problems in the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a mechanism verts of accurate lightweight in rotor nacelle of rotor unmanned aerial vehicle verts that verts, includes the wing connecting piece, rotates connecting device, clamping ring, drive mechanism and rotor nacelle connector, the wing connecting piece sets up in the one side of rotating connecting device, the clamping ring sets up the opposite side of rotating connecting device, drive mechanism sets up the opposite side at the clamping ring, rotor nacelle connector sets up the opposite side at drive mechanism.

As a preferred embodiment of the present invention, the wing connector is used for fixedly connecting the tilt mechanism to a wing of a tilt rotor unmanned aerial vehicle.

As a preferred embodiment of the present invention, the rotary connection device is a slewing bearing, an inner ring of the slewing bearing is connected to the wing connector by a screw, an outer ring of the slewing bearing is connected to the connection ring and the rotor nacelle connector by a screw, and the connection ring is a dedicated connection for the two components of the slewing bearing and the rotor nacelle connector, so as to increase the structural strength and reduce the virtual position.

As a preferred embodiment of the present invention, the transmission mechanism includes a tilt turbine and a rotating dual-lead worm system, the tilt turbine is fixed on the rotor nacelle connector by screws, an inner ring of the tilt turbine is nested on an outer ring of a cylindrical portion of the rotor nacelle connector and is fixed by screw hole sites, and the tilt turbine is matched with the worm portion of the rotating dual-lead worm system and is driven to rotate by the worm portion.

In a preferred embodiment of the present invention, the rotating double-lead screw system is connected with a screw hole above a wing connecting piece view through a screw, and the worm rotates to drive the turbine, and the turbine is driven to rotate the movable part of the whole tilting mechanism.

Compared with the prior art, the invention provides a precise and portable tilting mechanism for a rotor nacelle of a tilting rotor unmanned aerial vehicle, which has the following beneficial effects:

the tilting mechanism adopts a high-precision double-lead worm and gear transmission design, the tooth thickness of the worm is changed, so that the gap between the worm and the gear can be adjusted to reach an optimal state, no virtual position is realized, in addition, when the gap between the worm and the gear is enlarged in the using process, the gap between the worm and the gear can be reduced by adjusting the axial position of the worm, compared with the mode of the traditional steering engine, the whole virtual position is very small and almost ignored, the harmful shaking of a rotor wing nacelle during operation caused by overlarge virtual position in other modes is avoided, and the stable operation of the tilting rotor unmanned aerial vehicle is ensured;

the tilting mechanism is designed by adopting a large-torque worm gear transmission, so that the tilting position of the rotor wing nacelle is controllable under sudden severe flying postures of the tilting rotor unmanned aerial vehicle, and the tilting mechanism cannot be damaged due to torque generated by the rotor wing;

the tilting mechanism is compact in structure, and under the condition that the strength meets the design requirement, unnecessary structural weight is reduced to the maximum extent.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a front view of a precision and lightweight tilt mechanism for a rotor nacelle of a tilt rotor unmanned aerial vehicle according to the present invention;

fig. 2 is an exploded schematic view of a precision and lightweight tilt mechanism of a rotor nacelle of a tilt rotor unmanned aerial vehicle according to the present invention.

In the figure: 1. a wing connection; 2. a rotating connection device; 3. a connecting ring; 4. a tilt turbine; 5. a rotor nacelle connector; 6. a rotating dual-pilot scroll system.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly, e.g., as meaning fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed; the type of the electrical appliance provided by the invention is only used for reference. For those skilled in the art, different types of electrical appliances with the same function can be replaced according to actual use conditions, and for those skilled in the art, the specific meaning of the above terms in the present invention can be understood in specific situations.

Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a mechanism verts of accurate lightweight in rotor nacelle of rotor unmanned aerial vehicle verts, includes wing connecting piece 1, rotates connecting device 2, clamping ring 3, drive mechanism and rotor nacelle connector 5, wing connecting piece 1 sets up in the one side of rotating connecting device 2, clamping ring 3 sets up the opposite side of rotating connecting device 2, drive mechanism sets up the opposite side at clamping ring 3, rotor nacelle connector 5 sets up the opposite side at drive mechanism.

In this embodiment, wing connecting piece 1 is used for the fixed connection of tilting mechanism and tilting rotor unmanned aerial vehicle wing.

In this embodiment, it is slewing bearing to rotate connecting device 2, slewing bearing inner circle passes through screwed connection with wing connecting piece 1, and the outer lane passes through the screw rod to be connected with clamping ring 3, rotor nacelle connector 5, and clamping ring 3 is the special connecting piece of slewing bearing and these two parts of rotor nacelle connector 5, plays and increases structural strength, reduces the effect of virtual position.

In this embodiment, drive mechanism is including verting turbine 4 and rotatory two journey scroll system 6, verts turbine 4 and passes through the screw fixation on rotor nacelle connector 5, and its inner circle nestification is fixed through the screw hole site on 5 cylinder portion of rotor nacelle connector outer circles and fixed, 4 turbine parts of turbine and the 6 worm parts of rotatory two journey scroll system of leading cooperate of verting, receive it to drive rotatoryly.

In this embodiment, the rotating double-guide-stroke worm system 6 is connected with a screw hole above the view of the wing connecting piece 1 through a screw, the worm rotates to drive the turbine, and the turbine is driven to rotate the movable part of the whole tilting mechanism.

The working principle is as follows: this device passes through wing connecting piece 1 and the connection of verting rotor unmanned aerial vehicle wing, and rotatory two stroke scroll system 6 is connected with the output of motor, and like this, when the motor starts, the motor shaft drives the worm position of rotatory two stroke scroll system 6 rotatory, and 4 turbine parts of turbine of verting cooperate with 6 worm parts of rotatory two stroke scroll system, receive it to drive rotatoryly, follow thereupon the rotation of whole mechanism movable part that verts of driven realization.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.