CN111824388A

CN111824388A - Fixed wing unmanned aerial vehicle tail boom hangs

Info

Publication number: CN111824388A
Application number: CN201910311003.XA
Authority: CN
Inventors: 李友龙; 冯若琪; 杨文�; 张巍警; 陆斌荣; 王旋; 陈涛
Original assignee: Chengdu Aircraft Industrial Group Co Ltd
Current assignee: Chengdu Aircraft Industrial Group Co Ltd
Priority date: 2019-04-18
Filing date: 2019-04-18
Publication date: 2020-10-27

Abstract

The invention relates to a tail boom hanger of a fixed-wing unmanned aerial vehicle, and belongs to the field of aircraft structural design. The wing-type aircraft wing joint comprises a wing, a tail stay bar, a front joint, a rear joint, a double-lug semicircular ring, a quick-release pin, a hinge bolt, a self-locking nut, a front limit stop block, a rear limit stop block and a bolt. The front joint, the rear joint passes through the bolt and is connected with the wing, the ears semicircle ring passes through the bolt, the nut and front joint, the rear joint is connected, preceding spacing dog, back spacing dog splice inlay to the tail vaulting pole on, along vertical upwards promote the tail vaulting pole until preceding spacing dog, back spacing dog respectively with front joint, rear joint go up spacing draw-in groove cooperation target in place, before rotating the ears semicircle ring to the auricle hole along the bolt, the pore pair is gone up to the rear joint, then in will dismantling the round pin patchhole soon. The invention has simple and reliable structure and simple and quick assembly and disassembly.

Description

Fixed wing unmanned aerial vehicle tail boom hangs

Technical Field

The invention belongs to the field of airplane structural design, and aims to realize safe, reliable and quick disassembly and assembly of a tail stay bar through a wing lower hanging structure.

Background

The core competitiveness of the commercial small unmanned aerial vehicle is low cost and good user experience, how to reduce the cost is the key point of the design of the small unmanned aerial vehicle on the premise of ensuring the quality and meeting the functional requirements, and the good experience of the user is also required to be provided, so that the user can operate easily and easily in the using process. The difficulty of cost control and operation is realized by a first aspect according to the complexity of the structure, the difficulty of processing is realized by a second aspect according to the difficulty of the structure, the redundancy of assembly is realized by a third aspect, and the maintainability is realized by a fourth aspect. The tail stay bar of a common small unmanned aerial vehicle is installed on a wing through a fixing bolt, so that the problems of large weight, long installation and disassembly time, difficulty in operation and the like can be generally solved.

Disclosure of Invention

The purpose of the invention is: the small unmanned aircraft tail boom is hung to the structure below the wings, and the small unmanned aircraft tail boom is more rapid and convenient to disassemble, convenient to carry and transport and high in reliability.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a tail stay hanger of a fixed-wing unmanned aerial vehicle comprises wings, a tail stay bar, a front joint, a rear joint, double-lug semicircular rings and quick-release pins; the front joint and the rear joint are fixed on the wing through bolts; the front joint and the rear joint are respectively connected with a double-lug semicircular ring; the tail stay bar is fixedly connected with the front joint and the rear joint through the double-lug semicircular ring; the matching surface of the front connector and the rear connector is provided with a limiting clamping groove, and correspondingly, the tail stay bar is provided with a front limiting stop block, a rear limiting stop block and a limiting clamping groove.

The double-lug semicircular ring is connected with the front joint and the rear joint through hinge bolts and self-locking nuts.

The double-lug semicircular rings are locked through quick-release pins.

The cross sections of the front limit stop block and the rear limit stop block are rectangular.

The tail stay bar is made of carbon fiber composite materials. When will hanging tail stay and installing the wing below, preceding, back spacing dog splice inlay on the tail stay with preceding, back connect spacing draw-in groove cooperation, prevent tail stay along axial displacement and rotation of self, the ears semicircle ring passes through the form of hinge bolt and quick-release round pin with preceding, back joint, the simple quick realization tail stay is connected with the wing. When the tail stay bar needs to be disassembled, the quick-release pin is pulled out, and the double-lug semicircular ring is overturned, so that the tail stay bar can be disassembled downwards along the vertical direction.

Compared with the prior art, the invention has the beneficial effects that:

the invention has simple structure and assembly relation, reliable connection and quick assembly and disassembly. The double-lug design on the double-lug semicircular ring can effectively prevent the quick release pin from completely withdrawing from the connecting hole, ensures the reliability of connection and contributes to flight safety.

Drawings

FIG. 1 is a front view of the structure of the present invention;

FIG. 2 is a rear view of the structure of the present invention;

FIG. 3 is a schematic illustration of tail boom installation/removal;

FIG. 4 is a schematic view of the connection of a joint to a wing;

FIG. 5 is a schematic view of the operation principle of the limit stop;

FIG. 6 is a schematic view of a quick release pin safety mechanism.

In the figure: 1. the wing, 2. the tail vaulting pole, 3. the front joint, 4. the back joint, 5. the ears semicircle ring, 6. quick-release round pin, 7. the hinge bolt, 8. the self-locking nut, 9. the preceding spacing dog, 10. the back spacing dog, 11. the bolt.

Detailed Description

The specific structure of the present invention is given by the following embodiments and the drawings thereof. But do not limit the invention to the scope of the described embodiments.

Example 1

The invention relates to a tail stay hanger of a fixed-wing unmanned aerial vehicle, which comprises a wing 1, a tail stay bar 2, a front joint 3, a rear joint 4, a double-lug semicircular ring 5 and a quick release pin 6, wherein the wing is fixedly connected with the tail stay bar; the front joint 3 and the rear joint 4 are fixed on the wing 1 through bolts 11; the front joint 3 and the rear joint 4 are respectively connected with a double-lug semicircular ring 5; the tail stay bar 2 is connected with the front joint 3 and the rear joint 4 through double-lug semicircular rings; the matching surfaces of the front connector 3 and the rear connector 4 are provided with limiting clamping grooves, and correspondingly, the tail stay bar is provided with a front limiting stop 9, a rear limiting stop 10 and the limiting clamping grooves.

Example 2

In fig. 4, the front joint 3, the rear joint 4 is connected with the wing through the bolt 11, in fig. 3, the double-lug semicircular ring 5 is connected with the front joint 3 and the rear joint 4 through the hinge bolt 7, the self-locking nut 8, the front limit stop 9 and the rear limit stop 10 are connected in a splicing manner and are embedded on the tail stay bar 2, the tail stay bar 2 is vertically upwards pushed until the front limit stop 9 and the rear limit stop 10 are respectively matched with the front joint 3 and the limiting clamping groove on the rear joint 4 in place, the double-lug semicircular ring 5 is rotated to be aligned with the upper hole of the lug plate and the upper hole of the rear joint along the bolt 7, and in fig. 1, the quick-release pin 6 is inserted into the hole.

In fig. 3, the connection between the tail stay bar and the wing is simply and rapidly realized by the form of the hinge bolt and the quick-release pin between the double-lug semicircular ring and the front and rear joints.

Example 3

In figure 5, the front and rear limit stops are spliced and embedded on the tail stay bar to be matched with the front and rear limiting clamping grooves in the connector, the tail stay bar is prevented from moving axially and rotating per se, the front limit stop 9 limits the tail stay bar to move along the reverse direction, the rear limit stop 10 limits the tail stay bar to move along the forward direction, the cross sections of the front and rear limit stops are rectangular, and the front and rear limit stops are matched with the front and rear limiting clamping grooves in the connector to limit the rotation of the tail stay bar per se, so that the structure has high safety and reliability.

In fig. 6, when the quick release pin is withdrawn from the connecting hole due to some reason, the double-lug design of the double-lug semicircular ring can effectively prevent the quick release pin from being completely withdrawn, and the reliability and the safety of connection are improved.

Example 4

In fig. 1, 2 and 3, the tail boom hanging structure of the invention is composed of 11 parts, namely a wing 1, a tail boom 2, a front joint 3, a rear joint 4, a double-lug semicircular ring 5, a quick-release pin 6, a hinge bolt 7, a self-locking nut 8, a front limit stop 9, a rear limit stop 10 and a bolt 11. The front joint 2, the rear joint 4, the double-lug semicircular ring 5, the front limit stop 9 and the rear limit stop 10 are formed by machining with a metal material. The tail stay bar 2 is formed by pre-immersing carbon fiber composite material into resin, heating, curing, pulling and extruding (winding). The quick-release pin 6, the hinge bolt 7, the self-locking nut 8 and the bolt 11 are fasteners of national universal standards.

The tail boom is suitable for hanging, connecting and installing a tail boom for a general small-sized unmanned aerial vehicle, and the installing and disassembling modes are simple and quick and the connection is reliable; the structure is formed by adding a common metal material numerical control machine, the processing difficulty is small, the utilization rate of metal piece materials is high, and the processing cost is low; the bolts, the nuts and the quick-release pins are fasteners of national universal standards, are easy to purchase and have high reliability.

Example 5

In one embodiment of the invention, the hanging installation steps of the lower tail boom of the wing are as follows:

(1) the front joint 3 and the rear joint 4 are mounted on the wing 1 by 4 bolts 11.

(2) The two double-lug semicircular rings 5 are respectively connected with the front joint 3 and the rear joint 4 through hinge bolts 7 and self-locking nuts 8.

(3) The front limit stop 9 and the rear limit stop 10 are glued and embedded on the tail stay bar 2 to form the tail stay bar assembly.

(4) And lifting the tail stay rod component upwards from the lower part of the wing to the front and rear limiting stop blocks to be completely attached to the limiting clamping grooves on the front and rear connectors.

And (3) turning the two double-lug semicircular rings (5) until lug holes at the other ends of the two double-lug semicircular rings are aligned with the holes in the front joint and the rear joint, and inserting the quick-release pin.

Claims

1. A tail stay hanger of a fixed-wing unmanned aerial vehicle is characterized by comprising wings, a tail stay rod, a front joint, a rear joint, two lug semicircular rings and a quick release pin; the front joint and the rear joint are fixed on the wing through bolts; the front joint and the rear joint are respectively connected with a double-lug semicircular ring; the tail stay bar is fixedly connected with the front joint and the rear joint through the double-lug semicircular ring; the matching surface of the front connector and the rear connector is provided with a limiting clamping groove, and correspondingly, the tail stay bar is provided with a front limiting stop block, a rear limiting stop block and a limiting clamping groove.

2. The fixed-wing drone tail boom hanger of claim 1, wherein the double-lug semi-circular ring is connected with the front joint and the rear joint through hinge bolts and self-locking nuts.

3. The fixed-wing drone tail boom hanger of claim 1, wherein said binaural semi-circular ring is locked by a quick release pin.

4. The fixed-wing drone tail boom hanger of claim 1, wherein the front and rear limit stops are rectangular in cross-section.

5. The fixed-wing drone tail boom hanger of claim 1, wherein the material of the tail boom is a carbon fiber composite material.