Tool for quickly adjusting and mounting eccentric bushing of movable control surface

Abstract

The utility model provides a tool for quickly adjusting and installing an eccentric bushing of a movable control surface, which comprises an adjusting device and an eccentric hole shaft, the adjusting device is connected on the eccentric hole shaft, and an eccentric through hole is arranged in the middle of the eccentric hole shaft. According to the tool for rapidly adjusting and installing the eccentric bushing of the movable control surface, real-time adjustment can be carried out in the process of detecting the motion trail of the control surface, it is guaranteed that the motion trail and the posture of the control surface completely meet the installation requirements, and the detection procedure that the control surface needs to be disassembled and assembled multiple times is avoided; the mounting angle completely meets the precision requirement, the adjusting and mounting efficiency is high, and the time required for mounting the eccentric bushing can be greatly shortened.

Description

Technical Field

[0001] The utility model belongs to the field of aircraft part assembly, and particularly relates to a tool for quickly adjusting and installing an eccentric bushing of a movable control surface. Background Art

[0002] As an operating surface of an aircraft, the movable control surface can control the flight attitude of the aircraft by adjusting its deflection angle. Since the external airflow has a great influence on the flight state during the flight of the aircraft, the movement trajectory of the control surface also has a great influence on the flight performance. In order to meet the requirements for the movement trajectory of the movable control surface, the intersection parts of the two end arms of the control surface are connected by eccentric bushings, and the movement trajectory and attitude of the control surface are fixed and adjusted through the eccentric bushings. When installing the eccentric bushing on the arm of the movable control surface, the traditional installation method is to first install the eccentric bushing on the arm of the movable control surface at a rough position, then install the control surface on the fixed component, and then check the movement trajectory and attitude of the control surface. After recording the detection data, the control surface is disassembled from the component, the eccentric position of the eccentric bushing is adjusted according to the detection data, and then the control surface is installed on the component. The above steps are repeated until the movement trajectory and attitude of the control surface meet the requirements after detection, and the installation and fixation of the eccentric bushing are completed. This installation method has a high labor intensity, requires multiple disassembly and assembly of the control surface during the installation process, has a low single adjustment accuracy, is difficult to ensure the product quality, and has a long manufacturing cycle. Therefore, at present, a fast, convenient and stable method for installing and adjusting the eccentric bushing is needed to improve the installation efficiency of the control surface. Content of the Utility Model

[0003] In order to solve the above problems, the utility model provides a tool for quickly adjusting and installing an eccentric bushing of a movable control surface, which can adjust the installation position of the eccentric bushing without disassembling the movable control surface and ensure the installation accuracy of the eccentric bushing.

[0004] A tool for quickly adjusting and installing an eccentric bushing of a movable control surface includes an adjusting device and an eccentric hole shaft. The adjusting device is connected to the eccentric hole shaft. An eccentric through hole is opened in the middle of the eccentric hole shaft. The shape of the eccentric hole shaft is the same as that of the eccentric bushing, so that the eccentric hole shaft can be installed in the hole for installing the eccentric bushing on the movable control surface and can rotate. After the eccentric hole shaft is installed, the angle of the eccentric hole shaft can be adjusted through the adjusting device.

[0005] In order to be able to indicate the correct installation position of the eccentric bushing through the eccentric hole shaft, a marking line is provided on the outer end surface of the eccentric hole shaft. When setting the marking line, the marking line is located on the extension line of the connecting line between the centers of the eccentric hole shaft and the through hole, so as to standardize the position of the marking line and make the indication of the marking line more accurate.

[0006] As a specific structure of the adjusting device, the adjusting device consists of an adjusting rod and a handle. One end of the adjusting rod is connected to the eccentric hole shaft, and the other end is vertically connected to the handle. The adjusting rod can be rotated through the handle, thereby driving the eccentric hole shaft to rotate.

[0007] The usage steps of the tool are as follows:

[0008] S1. According to the size of the rudder surface eccentric bushing, make the eccentric hole shaft according to this size, and connect the eccentric hole shaft to the adjusting device to obtain a complete tool.

[0009] S2. Insert the eccentric hole shaft into the hole on the rudder surface support arm for installing the eccentric bushing. When installing, make the through hole on the eccentric hole shaft face the direction of connecting other components, so that the rudder surface can be connected to other components through the through hole, and the rudder surface can freely adjust its position.

[0010] S3. After installing the rudder surface, adjust the position of the rudder surface to make the rudder surface perform retracting and extending movements. During the movement, continuously observe the movement trajectory and attitude of the rudder surface. When the movement trajectory and attitude deviate, use the adjusting device to rotate the eccentric hole shaft to change the movement trajectory and attitude of the rudder surface. Repeat the above process until the movement trajectory and attitude of the rudder surface meet the installation requirements, and then fix the position of the eccentric hole shaft.

[0011] S4. Remove the rudder surface from the installation component, and then observe the position of the marking line on the eccentric hole shaft. According to the marking line on the eccentric hole shaft, draw an extended marking line on the edge of the hole on the rudder surface for installing the eccentric bushing.

[0012] S5. Remove the entire tool from the rudder surface, install the eccentric bushing, and align the extension line of the inner and outer centers of the eccentric bushing with the marking line according to the marked marking line, so that the installation angle of the eccentric bushing is the same as the angle after the eccentric hole shaft is adjusted, complete the position adjustment of the eccentric bushing, and finally fix the eccentric bushing completely.

[0013] The tool for quickly adjusting and installing the eccentric bushing of the movable rudder surface provided by the present utility model can perform real-time adjustment during the process of detecting the movement trajectory of the rudder surface, ensure that the movement trajectory and attitude of the rudder surface fully meet the installation requirements, avoid the detection process of repeatedly disassembling and assembling the rudder surface. The eccentric bushing installed by this method has an installation angle that fully meets the precision requirements, has high adjustment and installation efficiency, and can greatly reduce the time required for installing the eccentric bushing. Description of the Drawings

[0014] The following further describes the present utility model in detail with reference to the drawings.

[0015] Figure 1 It is a schematic structural diagram of the tool provided by the present utility model;

[0016] Figure 2Schematic structural diagram of the state where the tool is installed on the rudder surface;

[0017] As shown in the figure: 1 - Eccentric hole shaft; 2 - Through hole; 3 - Marking line; 4 - Adjusting rod; 5 - Handle. Specific implementation mode

[0018] To further illustrate the concept of the present invention, the following will further describe the specific implementation mode of the present invention in conjunction with the drawings:

[0019] A tool for quickly adjusting and installing an eccentric bushing of a movable rudder surface includes an adjusting device and an eccentric hole shaft 1. Take a metal rod and mill one end of the metal rod. The milling shape is according to the shape of the eccentric bushing to be installed. The milled end is used as the eccentric hole shaft 1, and the un-milled part is used as the adjusting rod 4. Weld two handles 5 at the end of the adjusting rod 4 to form the adjusting device. Finally, on the end face of the eccentric hole shaft 1, mark a marking line 3 in the direction of the extension line of the inner and outer center lines, as Figure 1 shown.

[0020] When installing the eccentric bushing, first make the corresponding number of tools according to the size and installation quantity of the eccentric bushing. Then insert the eccentric hole shaft 1 into the hole for installing the eccentric bushing on the rudder surface arm, and make the through hole 2 of the eccentric hole shaft 1 face the direction of connecting other components, as Figure 2 shown. Connect the rudder surface with other components through the through hole 2. Through the connection, the rudder surface can move freely. Since the shape of the eccentric hole shaft 1 is the same as that of the eccentric bushing, the eccentric hole shaft 1 can perfectly replicate the installation state of the eccentric bushing and simulate the movement trajectory and attitude of the rudder surface in the installation state of the eccentric bushing.

[0021] After installing the rudder surface on the connected component through the tool, adjust the position of the rudder surface according to the predetermined working state of the rudder surface, so that the rudder surface performs retracting and extending movements according to the predetermined working stroke. During the movement of the rudder surface, by observing whether there is a deviation between the movement trajectory and attitude of the rudder surface and the calculated data, it can be judged whether the installation angle of the eccentric hole shaft 1 is correct. When there is a deviation in the movement trajectory and attitude of the rudder surface, use the adjusting device to rotate the eccentric hole shaft 1. By adjusting the position of the through hole 2 on the eccentric hole shaft 1, the movement trajectory and attitude of the rudder surface can be adjusted. Continuously repeat the above process. When the movement trajectory and attitude of the rudder surface meet the installation requirements, the installation angle of the eccentric hole shaft 1 is the perfect installation angle of the eccentric bushing, and the position of the eccentric hole shaft 1 is fixed.

[0022] After completing the position adjustment of the eccentric hole shaft 1, remove the rudder surface from the mounting component, and then observe the position of the marking line 3 on the eccentric hole shaft 1. According to the marking line 3 on the eccentric hole shaft 1, draw an extended marking line on the hole edge of the rudder surface where the eccentric bushing is installed to mark the installation angle of the eccentric hole shaft 1. Then remove the entire tool from the rudder surface and install the eccentric bushing. Adjust the angle of the eccentric bushing according to the marked marking line so that the extended line of the inner and outer centers of the eccentric bushing coincides with the marking line, and make the installation angle of the eccentric bushing consistent with the adjusted angle of the eccentric hole shaft 1, thus completing the position adjustment of the eccentric bushing. After completely fixing the eccentric bushing, the rudder surface can be installed.

[0023] The tool for quickly adjusting and installing the eccentric bushing of the movable rudder surface provided by the present utility model can visually display the movement trajectory and attitude of the rudder surface under the current installation condition of the eccentric bushing through the eccentric hole shaft 1 during the adjustment process. During the adjustment process, by directly adjusting the position of the eccentric hole shaft 1, the movement trajectory and attitude of the rudder surface can meet the design requirements, avoiding the process steps of repeatedly disassembling and assembling the rudder surface in the traditional method, greatly simplifying the installation and adjustment process of the eccentric bushing. The angle position of the eccentric bushing after installation can be ensured through the marking line 3, so that the installation accuracy of the eccentric bushing meets the design requirements.

[0024] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, various changes and modifications can be made. Any modification, equivalent replacement, improvement, etc. made using the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A tool for quickly adjusting and installing an eccentric bushing of a movable rudder surface, characterized in that: The invention comprises an adjusting device and an eccentric hole shaft (1), wherein the adjusting device is connected to the eccentric hole shaft (1), an eccentric through hole (2) is provided in the middle of the eccentric hole shaft (1), and the eccentric hole shaft (1) can be inserted into a hole on a rudder surface for installing an eccentric bushing and can rotate.

2. The tool for quickly adjusting and installing the eccentric bushing of the movable control surface according to claim 1, characterized in that: The outer end surface of the eccentric hole shaft (1) is provided with a marking line (3).

3. The tool for quickly adjusting and installing the eccentric bushing of the movable control surface according to claim 2, characterized in that: The marking line (3) is located on the extension line of the connecting line of the centers of the eccentric hole axis (1) and the through hole (2).

4. The tool for quickly adjusting and installing the eccentric bushing of the movable control surface according to claim 3, characterized in that: The adjusting device comprises an adjusting rod (4) and a handle (5); one end of the adjusting rod (4) is connected to the eccentric hole shaft (1), and the other end is vertically connected to the handle (5).

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