Position adjusting device of low-scattering cover body

Abstract

A position adjusting device of a low-scattering cover body comprises a mounting plate, an adjusting rod and two dampers. The adjusting rod vertically penetrates through the mounting plate and slides relative to the mounting plate, and one end of the adjusting rod is in contact with the surface of the cover body; the two dampers are arranged on the two sides of the adjusting rod respectively, and the two ends of each damper are hinged to the mounting plate and the surface of the cover body respectively. The problems that the integrity and smoothness of the outer surface of the cover body are possibly damaged by adjusting operation on the outer side of the cover body, unnecessary scratches, recesses or other physical damages are introduced, the transmission path of electromagnetic waves is interfered, and the test result is influenced are solved.

Description

Technical Field

[0001] The utility model relates to the field of aircraft testing, in particular to a position adjustment device for a low-scattering cover. Background Art

[0002] In recent years, various stealth aircraft have required a large number of radar cross-section (RCS) tests during the development, production, certification, and maintenance stages. Through detailed testing, the stealth defects of the aircraft can be grasped, the iterative optimization of the aircraft can be supported, and the performance of the aircraft can also be evaluated.

[0003] During the aircraft development stage, the near-field to far-field transformation test method based on the near-field test system is generally used to conduct preliminary stealth performance testing on the aircraft at the production site. This can basically understand the distribution of the scattering sources of the aircraft body, and can also preliminarily grasp the stealth performance of the aircraft, providing basic data for the optimization and improvement of the stealth performance of the entire aircraft.

[0004] During testing, cylindrical struts are generally used to firmly support the aircraft. However, their specular scattering and coupled scattering with the aircraft body and the ground are very strong. These scattered signals are all background clutter, which has a great impact on the testing of current high-stealth aircraft. It is necessary to install a low-scattering cover on the outside of the cylindrical strut for protection.

[0005] In practical applications, adjusting the position of a low-scattering shield often presents numerous challenges. Traditional adjustment methods often require operation on the outside of the shield, which can damage the integrity and flatness of the outer surface, thereby affecting its electromagnetic performance, and can also increase the complexity and time cost of adjustment.

[0006] Specifically, if force is applied directly to the outside of the cover for adjustment, unnecessary scratches, dents or other physical damage may be introduced. These damages will serve as scattering sources, interfering with the transmission path of electromagnetic waves, thereby affecting the accuracy of the test results. Utility Model Content

[0007] The purpose of the utility model is to provide a position adjustment device for a low-scattering cover, which solves the problem that adjustment operations on the outside of the cover may destroy the integrity and flatness of the outer surface of the cover, introduce unnecessary scratches, dents or other physical damage, interfere with the transmission path of electromagnetic waves, and thus affect the test results.

[0008] The embodiments of the present invention are achieved through the following technical solutions:

[0009] A position adjustment device for a low-scattering cover, comprising:

[0010] Mounting plate;

[0011] an adjusting rod, the adjusting rod vertically passing through the mounting plate and slidingly arranged relative to the mounting plate, with one end of the adjusting rod contacting the surface of the cover body;

[0012] The dampers are respectively arranged on both sides of the adjustment rod, and the two ends of the dampers are respectively hinged to the mounting plate and the surface of the cover body.

[0013] One end of the damper is further provided with a fixing plate, which is hinged to the damper; the fixing plate contacts and is fixed to the surface of the cover.

[0014] The connection method between the fixing plate and the cover body includes bolt connection or riveting.

[0015] The adjusting rod is a screw rod, one end of which is further provided with a contact block; the contact block is in contact with the surface of the cover body.

[0016] A rotating disk is rotatably provided on one side of the mounting plate, and a thread is provided on the inner wall of the rotating disk; the adjusting rod passes through the rotating disk, and the surface of the adjusting rod is engaged with the thread on the inner side of the rotating disk.

[0017] A handle is also provided on one side of the rotating disk.

[0018] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0019] The utility model provides a position adjustment device for a low-scattering cover, which avoids applying a force directly to the outer surface of the cover by arranging the adjustment device on the inner side of the cover, thereby protecting the integrity and flatness of the outer side of the cover and ensuring that the accuracy of the test results is not affected. The adjustment rod adopts a screw design and is equipped with a rotating disk and a handle, making the adjustment process more precise and controllable. The user can easily fine-tune the position of the cover by rotating the handle to meet the needs of different test scenarios; the setting of the damper not only provides stability of the cover during the adjustment process, but also reduces the vibration and shaking caused by the adjustment, further ensuring the reliability of the test results; the connection method between the fixed plate and the cover is bolt connection or riveting, which is both firm and easy to disassemble, and facilitates the installation, maintenance and replacement of the device; the design of this device is compact and the structure is flexible, and it can adapt to low-scattering covers of different sizes and shapes, as well as complex installation environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of one side of the utility model;

[0021] Figure 2 It is a structural schematic diagram of the other side of the utility model.

[0022] In the figure, 1-mounting plate, 101-through hole, 102-limiting hole, 103-rotating groove, 201-screw rod, 202-rotating disk, 203-contact block, 204-limiting rod, 205-handle, 301-damper, 302-fixing plate. DETAILED DESCRIPTION

[0023] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0025] like Figure 1 and 2 As shown, a position adjustment device for a low-scattering cover includes a mounting plate 1, an adjustment rod, a contact block 203, a rotating disk 202, two dampers 301, and a fixed plate 302; the mounting plate 1 is provided with a through hole 101, a limiting hole 102, and a rotating groove 103; the rotating groove 103 is arranged around the through hole 101, is annular, and is concentric with the through hole 101; the rotating disk 202 is rotatably arranged in the rotating groove 103, has a screw hole at its center, and is concentric with the through hole 101; a handle 205 is also provided on one side of the rotating disk 202 for convenient rotation adjustment by a worker holding the handle 205; the limiting hole 102 is located next to the through hole 101;

[0026] The adjusting rod is a screw rod 201 that vertically passes through the through hole 101 on the mounting plate 1 and the rotating disk 202 in sequence, with its surface threadedly engaged with the inner side of the rotating disk 202. A contact block 203 is also provided at one end of the adjusting rod. The contact block 203 is cylindrical, and its side surface contacts the surface of the cover. A limiting rod 204 is also provided parallel to the adjusting rod and passes through the limiting hole 102 to limit the rotation of the contact block 203, so that it can only move along the axis of the limiting hole 102.

[0027] Two dampers 301 are located on either side of the adjustment rod; the fixed end of the damper 301 is hinged to one side of the mounting plate 1, and the movable end is hinged to the fixed plate 302; when the adjustment rod moves, the cover is pushed outward to deform, the damper 301 extends, and the hinges at both ends rotate relative to each other to keep the two sides of the deformed part of the middle cover flat; it should be noted that the damper 301 is prior art and is not an improvement of this embodiment, and will not be described in detail here;

[0028] Specifically, the fixing plate 302 is provided with a plurality of fixing holes for connecting the fixing plate 302 to the cover body by bolts or rivets.

[0029] The working principle of this embodiment is:

[0030] The utility model provides a position adjustment device for a low-scattering cover. First, the device is installed at the place where the inner side wall of the cover needs to be adjusted, and then the fixing plates 302 on both sides are fixed to the inner side wall of the cover through multiple fixing holes thereon by riveting, and the installation is completed; when adjusting, if the cover needs to be adjusted at that location, the handle 205 is rotated to make the contact block 203 contact the cover and push it outward, so that its local position can be adjusted. By installing the device at multiple positions on the cover, the overall position adjustment of the cover can be completed.

[0031] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent replacements, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A position adjustment device for a low-scattering cover, characterized in that: include: Mounting plate; an adjusting rod, the adjusting rod vertically passing through the mounting plate and slidingly arranged relative to the mounting plate, with one end of the adjusting rod contacting the surface of the cover body; Two dampers are respectively arranged on both sides of the adjustment rod, and two ends of the dampers are respectively hinged to the mounting plate and the surface of the cover body.

2. The position adjustment device for a low-scattering cover according to claim 1, characterized in that: One end of the damper is further provided with a fixing plate, which is hinged to the damper; the fixing plate contacts and is fixed to the surface of the cover.

3. The position adjustment device for a low-scattering cover according to claim 2, characterized in that: The connection method between the fixing plate and the cover body includes bolt connection or riveting.

4. The position adjustment device for a low-scattering cover according to claim 1, characterized in that: The adjusting rod is a screw rod, one end of which is further provided with a contact block; the contact block is in contact with the surface of the cover body.

5. The position adjustment device for a low-scattering cover according to claim 4, characterized in that: A rotating disk is rotatably provided on one side of the mounting plate, and a thread is provided on the inner wall of the rotating disk; the adjusting rod passes through the rotating disk, and the surface of the adjusting rod is engaged with the thread on the inner side of the rotating disk.

6. The position adjustment device for a low-scattering cover according to claim 5, characterized in that: A handle is also provided on one side of the rotating disk.

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