An aircraft elevator trimmer rocker arm joint

Abstract

This utility model discloses an aircraft elevator trimmer rocker arm connector in the field of aircraft structural design technology. It includes a base plate, flanges on both sides of the base plate, a connecting plate between the flanges, and connecting holes on the connecting plate for connecting a suspension connector. Mounting plates and mounting seats are provided on the flanges, and thick plates are also provided on the flanges. A reinforcing member is provided between the base plate and the flanges. This utility model integrates the suspension function of the trimmer and the transmission function of the control mechanism into a single component, reducing the number of connecting parts and achieving weight reduction. This not only optimizes the spatial layout and transmission efficiency of the control system but also reduces manufacturing costs and maintenance difficulty.

Description

Technical Field

[0001] This utility model relates to the field of aircraft structural design technology, and in particular to an aircraft elevator adjustment plate rocker arm joint. Background Technology

[0002] The rocker arm joint is a key component in aircraft control systems within the aerospace equipment industry. Typically made of high-strength alloy, it features a multi-arm lever structure and is fixed to the stabilizer via hinge points. It transmits the pilot's input to the control surfaces (such as elevators and rudders) through a linkage mechanism, simultaneously causing the trim tabs to deflect in the opposite or same direction to achieve aerodynamic compensation or balance, thereby reducing stick force or enhancing control response. In aircraft tail design, the precise coordination of the rocker arm joint ensures efficient cooperation between the trim tabs and the main control surfaces, reflecting the aerospace equipment industry's refined requirements for flight safety and handling performance.

[0003] However, existing technologies have some problems: in the aviation equipment industry, traditional aircraft control systems use a separate suspension joint and tie rod joint design. This structure not only increases the additional structural weight but also leads to an increase in the number of parts, resulting in a complex assembly process with high precision requirements, and increased manufacturing and maintenance costs. Therefore, we propose an aircraft elevator trim plate rocker arm joint. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an aircraft elevator adjustment plate rocker arm connector. By integrating the suspension function of the adjustment plate and the transmission function of the control mechanism into a single component, the number of connecting parts is reduced, achieving a weight reduction effect. This not only optimizes the spatial layout and transmission efficiency of the control system but also reduces manufacturing costs and maintenance difficulty.

[0005] The purpose of this utility model is achieved as follows: an aircraft elevator adjustment plate rocker arm connector includes a base plate, flange plates on both sides of the base plate, a connecting plate between the flange plates on both sides, a connecting hole on the connecting plate, the connecting plate being used to connect a suspension connector, a mounting plate on the flange plate, a mounting seat on the flange plate, a thick plate on the flange plate, and a reinforcing member between the base plate and the flange plates.

[0006] Optionally, the upper end of the connecting plate is circular, the connecting hole is concentric with the upper end of the connecting plate, and there are two connecting plates, which are symmetrically distributed.

[0007] Optionally, the mounting base has mounting holes, and the mounting base is fixedly connected to the mounting plate, which is used to connect the tie rod connector.

[0008] Optionally, the reinforcing member includes a rib and a stiffener, one end of the rib is fixedly connected to the thick plate, the other end of the rib is fixedly connected to the mounting plate, and the stiffener is fixedly connected to the mounting plate.

[0009] Optionally, the ribs and stiffeners are provided corresponding to the mounting base, and the ribs and stiffeners are used to enhance the load-bearing strength of the mounting base.

[0010] Optionally, clearance grooves are formed on both sides of the connecting plate, which are used to provide swing space for the pull rod.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. By integrating the suspension function of the adjustment plate and the transmission function of the control mechanism into a single component, the number of connecting parts is reduced, resulting in weight reduction. This not only optimizes the spatial layout and transmission efficiency of the control system, but also reduces manufacturing costs and maintenance difficulty.

[0012] 2. The synergistic effect of the ribs and stiffeners enhances the deformation resistance of the mounting base and ensures uniform load transfer; the symmetrically distributed connecting plates and concentric hole design simplify the assembly and positioning process, reduce the risk of installation errors, and achieve high load-bearing performance while also extending fatigue life and facilitating maintenance. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure provided by this utility model.

[0015] Figure 2 This is a schematic diagram of the mounting base structure provided by this utility model.

[0016] Figure 3 This is a schematic diagram of the connecting plate structure provided by this utility model.

[0017] In the diagram: 1. Base plate; 2. Edge plate; 3. Connecting plate; 31. Connecting hole; 4. Mounting plate; 5. Mounting base; 51. Mounting hole; 6. Thick plate; 7. Rib plate; 8. Rib; 9. Clearance groove. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] like Figures 1 to 3 The aircraft elevator adjustment plate rocker arm connector shown includes a base plate 1, flange plates 2 on both sides of the base plate 1, a connecting plate 3 between the two flange plates 2, a connecting hole 31 on the connecting plate 3, the connecting plate 3 is used to connect the suspension connector, a mounting plate 4 is provided on the flange plate 2, a mounting seat 5 is provided on the flange plate 2, a thick plate 6 is provided on the flange plate 2, and a reinforcing member is provided between the base plate 1 and the flange plate 2.

[0020] It should be noted that in the embodiments provided by this utility model, the adjusting plate rocker arm joint adopts an aluminum alloy machining structure. By integrating a suspension joint and a tie rod joint, it serves as both a suspension joint for the adjusting plate and a connection for the operating mechanism, which facilitates the overall structure, reduces the number of connecting parts, and thus achieves weight reduction. Furthermore, integrating the suspension joint and transmission function into a single component can significantly optimize the shortcomings of the traditional separate structure. First, the base plate 1 and the two side edge plates 2 form a stable frame structure, and the suspension joint is directly fixed with the connection holes 31 on the connecting plate 3. The setting of the mounting plate 4 and the mounting base 5 simplifies the docking process of the operating mechanism. The introduction of reinforcing components is used to improve the overall rigidity, and the design of the thick plate 6 specifically enhances the strength of key stress areas. Furthermore, by reducing the number of independent parts and assembly interfaces, the system weight and assembly complexity are effectively reduced, while the force transmission efficiency and reliability are improved.

[0021] Specifically, the upper end of the connecting plate 3 is circular, the connecting hole 31 is concentric with the upper end of the connecting plate 3, there are two connecting plates 3, the two connecting plates 3 are symmetrically distributed, and the two sides of the connecting plate 3 are formed with relief grooves 9, which are used to provide swing space for the pull rod.

[0022] Furthermore, a stable double-support structure is formed by two symmetrically distributed connecting plates 3. The circular layout at the upper end of the connecting plate 3 and the concentric connecting holes 31 ensure the centering of the suspension joint during installation, effectively avoiding off-center loading and improving the uniformity of force transmission. Secondly, the symmetrical arrangement of geometric features can enhance the balance of the joint when subjected to multi-directional loads. At the same time, the circular end structure can reduce the risk of stress concentration. It not only meets the requirements of high-precision fit for aviation joints, but also disperses concentrated loads through the symmetrical double plate structure, thereby improving the fatigue life and reliability of the joint and simplifying the positioning and adjustment process during assembly.

[0023] Specifically, the mounting base 5 has a mounting hole 51, and the mounting base 5 is fixedly connected to the mounting plate 4. The mounting plate 4 is used to connect the tie rod connector.

[0024] Furthermore, a rigid connection with an external mechanism is achieved through the mounting hole 51 on the mounting base 5. At the same time, the fixed fit between the mounting base 5 and the mounting plate 4 forms a stable force transmission path, ensuring reliable load transmission of the tie rod joint during movement. Furthermore, the mounting plate 4 is designed to directly connect to the tie rod joint, simplifying the complex transition connection links in the traditional structure. This not only reduces the assembly level but also improves the overall rigidity of the system.

[0025] Specifically, the reinforcing members include ribs 7 and stiffeners 8. One end of the rib 7 is fixedly connected to the thick plate 6, and the other end of the rib 7 is fixedly connected to the mounting plate 4. The stiffeners 8 are fixedly connected to the mounting plate 4. Both the ribs 7 and the stiffeners 8 are correspondingly set to the mounting base 5. The ribs 7 and the stiffeners 8 are used to enhance the load-bearing strength of the mounting base 5.

[0026] Furthermore, the synergistic reinforcement structure of rib plate 7 and stiffener 8 enables the load-bearing capacity of mounting base 5. Rib plate 7 forms a stable triangular force transmission path with thick plate 6 and mounting plate 4 as double fixed support points, effectively dispersing concentrated loads. Stiffener 8 extends longitudinally along mounting plate 4, forming a grid-like reinforcement system with rib plate 7, jointly suppressing the deformation of mounting base 5 under complex working conditions. Furthermore, by adopting a multi-directional reinforcement design, not only can the stress distribution of key parts be optimized, but the corresponding layout of ribs 7 and stiffeners 8 can also achieve efficient load transfer, ensuring that the joint maintains structural integrity and motion accuracy under high-frequency operation or high load conditions, thus meeting the dual requirements of aerospace equipment for weight reduction and strength.

[0027] For example, the entire rocker arm joint is made of 7050 aluminum alloy. 7050 has excellent comprehensive properties such as high strength, high fracture toughness, high fatigue strength and high resistance to stress corrosion, and is widely used in aircraft structures. The elevator adjustment plate rocker arm joint structure is designed as follows: 1) The suspension connector is a double-ear connector with a 3mm thick ear plate. The ear plate has a bolt hole with a diameter of φ7, i.e., connection hole 31.

[0028] 2) The tie rod joint is a double-ear joint with a lug thickness of 5mm. The lug has a bolt hole with a diameter of φ8, i.e., mounting hole 51. Two reinforcing members extend from the tie rod joint, rib plate 7 and stiffener 8, both with a thickness of 2mm, to increase the structural rigidity and stability.

[0029] 3) The thick plate 6 is connected to the rib plate 7, with a thickness of 2.5mm, and is used to connect the cover and the rocker arm joint.

[0030] 4) The thickness of the remaining area of ​​the joint is 1.5mm.

[0031] The entire joint has a large cavity after machining, which reduces the weight of the joint while ensuring its structural strength and rigidity.

[0032] The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A rocker arm connector for an aircraft elevator adjustment plate, comprising a base plate (1), characterized in that: The base plate (1) has flanges (2) on both sides, and a connecting plate (3) is provided between the flanges (2) on both sides. The connecting plate (3) has a connecting hole (31) and is used to connect the suspension joint. The flanges (2) have a mounting plate (4) and a mounting seat (5). The flanges (2) have a thick plate (6). A reinforcing member is provided between the base plate (1) and the flanges (2).

2. The aircraft elevator adjusting plate rocker arm joint according to claim 1, characterized in that: The upper end of the connecting plate (3) is circular, the connecting hole (31) is concentric with the upper end of the connecting plate (3), and there are two connecting plates (3), which are symmetrically distributed.

3. The aircraft elevator adjusting plate rocker arm joint according to claim 1, characterized in that: The mounting base (5) has a mounting hole (51) and is fixedly connected to the mounting plate (4). The mounting plate (4) is used to connect the tie rod connector.

4. The aircraft elevator adjusting plate rocker arm joint according to claim 1, characterized in that: The reinforcing member includes a rib (7) and a rib (8). One end of the rib (7) is fixedly connected to the thick plate (6), and the other end of the rib (7) is fixedly connected to the mounting plate (4). The rib (8) is fixedly connected to the mounting plate (4).

5. The aircraft elevator adjusting plate rocker arm joint according to claim 4, characterized in that: The ribs (7) and ribs (8) are respectively provided with the mounting base (5), and the ribs (7) and ribs (8) are used to enhance the load-bearing strength of the mounting base (5).

6. The aircraft elevator adjusting plate rocker arm joint according to claim 1, characterized in that: The connecting plate (3) has clearance grooves (9) on both sides, which are used to provide swing space for the pull rod.

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