Aircraft empennage elevator intersection joint
By designing a lift intersection joint composed of fixed joints and suspended joints, the problems of insufficient installation convenience, reliability and space occupation in the prior art are solved, and efficient and reliable aircraft tail wing structure connection is achieved.
Patent Information
- Application Number
- CN202421695939.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-17
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-07-17
AI Technical Summary
The existing aircraft tail lift junction joints have shortcomings in terms of installation convenience, reliability and space occupation, which is difficult to meet the needs of aircraft tail structure design.
A lift junction joint composed of a fixed joint and a hanging joint is designed. The fixed joint is installed on the elevator beam. The hanging joint is connected to the horizontal stabilizer suspension arm through a through hole, and a simple structure and fastener are used to achieve the connection.
It realizes the intersection joint with convenient installation, high reliability and small space, reduces the internal structural parts of the elevator, is easy to disassemble, and requires less installation space.
Smart Images
Figure CN222808293U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of aircraft, in particular to an aircraft tail wing. Background Art
[0002] In the aircraft tail structure design, the elevator, as a movable component, needs to be connected to the horizontal stabilizer. Generally, the elevator intersection joint is used to connect the suspension arm installed on the horizontal stabilizer. Considering its usage scenarios, it is urgent to design an intersection joint that is easy to install, highly reliable, and occupies a small space. Utility Model Content
[0003] In view of the deficiencies in the prior art, the utility model provides an aircraft tail elevator intersection joint, which has a simple structure, is easy to install, occupies a small space and has high reliability.
[0004] The purpose of the utility model is achieved in this way: an aircraft tail elevator intersection joint, comprising:
[0005] A fixed joint is fixed on the beam of the elevator, and a through hole is provided in the center of the fixed joint;
[0006] A hanging joint has one end fixedly connected to the fixed joint, and the other end extends out from the through hole and is connected to the hanging arm in the horizontal stabilizer.
[0007] Furthermore, the fixed joint includes a pair of side plates connected via a bottom plate, and the through hole is opened on the bottom plate.
[0008] Furthermore, the two side panels and the bottom panel are connected via two pairs of fixed joint ear plates, and the upper end of the hanging joint is processed with a hanging joint ear plate that cooperates with the fixed joint ear plate, and is connected to the fixed joint ear plate via fasteners.
[0009] Furthermore, the hanging joint is U-shaped as a whole, and a fastener for connecting with the hanging arm is installed in the middle.
[0010] Furthermore, the hanging joint includes two transition parts connecting two upper connecting parts and two lower hanging parts, the bottoms of the two lower hanging parts are connected via the lower connecting parts, the fasteners are installed on the lower hanging parts, and the spacing between the two upper hanging parts is greater than the spacing between the two lower hanging parts.
[0011] Furthermore, the fastener is also provided with a grounding wire connecting the angle piece.
[0012] Compared with the prior art, the beneficial effects of the utility model are: the utility model consists of a fixed joint and a hanging joint, has a simple structure, and the connection between the two is realized inside the fixed joint, saving space. The fasteners can be realized by conventional bolts, and the installation is convenient and quick, and can be used in the tail of an aircraft. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to more clearly illustrate the embodiments of the utility model 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 embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.
[0014] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 .
[0015] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2 .
[0016] Figure 3 It is a schematic diagram of the fixed joint structure in the utility model.
[0017] Figure 4 It is a schematic diagram of the structure of the hanging joint in the utility model.
[0018] Figure 5 It is a schematic diagram of the fastener structure in the utility model.
[0019] Figure 6 This is a state diagram used in the present utility model.
[0020] Among them, 100 fixed joint, 101 side plate, 102 bottom plate, 103 through hole, 104 fixed joint ear plate, 200 hanging joint, 201 upper connecting part, 202 transition part, 203 lower hanging part, 204 hanging joint ear plate, 205 lower connecting part, 300 fastener, 301 connecting bolt, 302 connecting nut, 303 connecting gasket, 304 cotter pin, 400 grounding wire connecting angle piece, 500 elevator, 600 suspension arm. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] like Figure 1-6 An aircraft tail elevator intersection joint shown includes:
[0023] The fixed joint 100 is fixed on the beam of the elevator 500, and a through hole 103 is provided in the center of the fixed joint 100;
[0024] The suspension joint 200 has one end fixedly connected to the fixed joint 100 and the other end extending from the through hole 103 and connected to the suspension arm 600 in the horizontal stabilizer.
[0025] Specifically, the through hole 103 in the center of the fixed joint 100 is a cross-shaped hole, and the entire joint is made of 7050 aluminum alloy material using a machining process.
[0026] It should be noted that the design of the cross hole reduces the weight as much as possible while ensuring the connection strength, and at the same time, it also facilitates the insertion of the hanging joint 200; the 7050 aluminum alloy material has the advantages of high strength, good toughness, excellent fatigue resistance, good corrosion resistance, good processing performance, high hardness, low density and thermal stability.
[0027] Furthermore, the fixing joint 100 includes a pair of side plates 101 connected via a bottom plate 102 , and a through hole 103 is formed on the bottom plate 102 .
[0028] Specifically, the bottom plate 102 and the side plate 101 are both flat plate structures.
[0029] It should be noted that such a design has a simple structure and the flat structure is easy to install.
[0030] Furthermore, the two side plates 101 are connected to the bottom plate 102 via two pairs of fixed joint ear plates 104 , and the upper end of the hanging joint 200 is processed with a hanging joint ear plate 204 that cooperates with the fixed joint ear plate 104 , and is connected to the fixed joint ear plate 104 via fasteners 300 .
[0031] Specifically, the ear plate of the hanging joint 200 extends from the through hole 103 between the fixed joint ear plates 104 and is connected by the fastener 300 to save installation space. The fastener 300 includes a connecting bolt 301, a connecting nut 302, a connecting gasket 303 and a cotter pin 304.
[0032] Furthermore, the suspension joint 200 is U-shaped as a whole, and a fastener 300 for connecting with the suspension arm 600 is installed in the middle.
[0033] Specifically, the U-shaped hanging joint 200 facilitates the insertion and connection of the hanging arm 600 therewith.
[0034] Furthermore, the hanging joint 200 includes two transition parts 202 connecting two upper connecting parts 201 and two lower hanging parts 203, the bottoms of the two lower hanging parts 203 are connected via the lower connecting part 205, the fastener 300 is installed on the lower hanging part 203, and the distance between the two upper hanging parts is greater than the distance between the two lower hanging parts 203.
[0035] Specifically, the structure designed in this way forms a sliding opening that is larger at the top and smaller at the bottom, which facilitates the direct sliding of the suspension and makes installation more convenient.
[0036] Furthermore, the fastener 300 is also provided with a grounding wire connecting the angle piece 400 .
[0037] It should be noted that the grounding wire connecting angle piece 400 is installed on a fastener 300, and the grounding wire connecting angle piece 400 is installed on the connecting bolt 301 of the fixed joint 100 and the hanging joint 200. It can act as a gasket and connect the grounding wire to avoid the grounding wire being directly connected to the joint.
[0038] The fixed joint 100 of the utility model is connected to the elevator 500 by means of draw nails, the bottom plate 102 of the fixed joint 100 is connected to the front beam of the elevator 500 by means of rivets, one end of the hanging joint 200 is connected to the fixed joint 100 by means of a fastener 300, and the other end of the hanging joint 200 extends into the elevator 500 and is connected to the suspension arm 600 of the elevator 500 by means of a fastener 300. Compared with the prior art, the number of internal structural parts of the elevator 500 is reduced, and the disassembly is convenient, and the required installation space is small.
[0039] The above embodiments are only used to help understand the method and core idea of the utility model. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made to the utility model without departing from the principle of the utility model, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.
Claims
1. An aircraft tail elevator intersection joint, characterized in that: include: A fixed joint (100) is fixed on the beam of the elevator (500), and a through hole (103) is provided in the center of the fixed joint (100); A hanging joint (200) has one end fixedly connected to the fixing joint (100), and the other end extending from the through hole (103) and connected to a hanging support arm (600) in the horizontal stabilizer.
2. The aircraft tail elevator intersection joint according to claim 1, characterized in that: The fixed joint (100) comprises a pair of side plates (101) connected via a bottom plate (102), and the through hole (103) is provided on the bottom plate (102).
3. The aircraft tail elevator intersection joint according to claim 2, characterized in that: The two side plates (101) and the bottom plate (102) are connected via two pairs of fixed joint ear plates (104); the upper end of the hanging joint (200) is processed with a hanging joint ear plate (204) that matches the fixed joint ear plate (104), and is connected to the fixed joint ear plate (104) via a fastener (300).
4. The aircraft tail elevator intersection joint according to claim 3, characterized in that: The hanging joint (200) is U-shaped as a whole, and a fastener (300) is installed in the middle for connecting with the hanging support arm (600).
5. The aircraft tail elevator intersection joint according to claim 4, characterized in that: The hanging joint (200) comprises two transition parts (202) connecting two upper connecting parts (201) and two lower hanging parts (203); the bottoms of the two lower hanging parts (203) are connected via a lower connecting part (205); the fastener (300) is mounted on the lower hanging parts (203); and the spacing between the two upper hanging parts is greater than the spacing between the two lower hanging parts (203).
6. The aircraft tail elevator intersection joint according to claim 3, characterized in that: The fastener (300) is also provided with a grounding wire connecting angle piece (400).