Limiting structure of waveguide rotary joint

Abstract

The utility model discloses a kind of limiting structure of waveguide rotary joint, including rotary joint body, the top of rotary joint body is rotatably connected with rotating part, the outer wall of rotary joint body is fixedly connected with fixed part, the bottom of fixed part is fixedly connected with first mounting plate, the bottom of first mounting plate is equipped with second mounting plate, the outer wall of first mounting plate is equipped with mounting hole, the inner wall of mounting hole is slidably connected with first screw.The utility model position between first mounting plate, second mounting plate and third mounting plate can be adjusted, release fixed side installation stress on rotary joint body, guarantee the coaxial degree of rotating part and fixed part in rotation process, reduce abrasion;Adopt split mounting, reach installation flexible and adapt to different installation requirements, including space avoidance;Single-point connection between first mounting plate and rotary joint body, increase flexibility, reduce the influence brought by vibration, improve reliability.

Description

Technical Field

[0001] This utility model relates to the field of waveguide rotary joint technology, and in particular to a limiting structure for a waveguide rotary joint. Background Technology

[0002] Waveguide rotary joints allow waveguides to maintain continuous signal transmission while rotating, and are commonly used in microwave and radio frequency systems, such as radar systems. Waveguide rotary joints require high-precision coaxial rotation; that is, after the rotating side is installed, the fixed side should not be overly constrained. Otherwise, the rotary joint will wear down, significantly affecting its service life, and in severe cases, the waveguide rotary joint may fail within a short period. The most common existing installation method is to first install the rotating part of the waveguide rotary joint, and then install the fixed side using four screws and a mounting plate. However, the four screws completely fit the mounting plate to the fixed side of the rotary joint. The machining accuracy of the mounting plate and mounting surface will cumulatively affect the coaxiality of the rotary joint, greatly increasing the probability of the rotary joint being subjected to stress during installation, causing wear, and affecting its service life and microwave performance. Therefore, we propose a limiting structure for waveguide rotary joints to solve the above problems. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a limiting structure for a waveguide rotary joint.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A limiting structure for a waveguide rotary joint includes a rotary joint body, a rotating part rotatably connected to the top of the rotary joint body, a fixing part fixedly connected to the outer wall of the rotary joint body, a first mounting plate fixedly connected to the bottom of the fixing part, a second mounting plate provided at the bottom of the first mounting plate, a mounting hole provided on the outer wall of the first mounting plate, a first screw slidably connected to the inner wall of the mounting hole, two first waist holes provided on the outer wall of the second mounting plate, a third mounting plate provided at the bottom of the second mounting plate, a plurality of assembly holes provided on the top of the third mounting plate, a second screw slidably connected to the inner wall of one of the assembly holes, two second waist holes provided on the bottom outer wall of the third mounting plate, and a support assembly provided at the bottom of the third mounting plate.

[0006] Preferably, the support assembly includes a fixing plate, the bottom of the third mounting plate is in contact with the top of the fixing plate, and a plurality of threaded feet are fixedly connected to the top of the fixing plate. The fixing plate provides stable support for the whole and provides a fixed installation position for the threaded feet.

[0007] Preferably, the threaded end of the first screw is located inside one of the first slots. By engaging the first screw with the first slot above the second mounting plate, the fixing part can be fixed in the vertical direction.

[0008] Preferably, the threaded end of the second screw is located inside another first slot hole, and the first slot hole below the second mounting plate mates with the second screw, allowing for adaptive left and right position adjustments.

[0009] Preferably, the threaded ends of the two threaded feet are located inside the two second waist holes, and the two second waist holes cooperate with the two threaded feet, allowing the rotating joint body to be adjusted in the front and back positions.

[0010] Preferably, the threaded ends of the first screw, the second screw, and the threaded foot are all fitted with nuts.

[0011] Compared with the prior art, the advantages of this utility model are:

[0012] 1. The adjustable positions of the first mounting plate, the second mounting plate and the third mounting plate release the mounting stress on the fixed side of the rotary joint body, ensure the coaxiality of the rotating part and the fixed part during rotation, and reduce wear;

[0013] 2. It adopts a split installation method, which can achieve flexible installation and adapt to different installation requirements, including space avoidance;

[0014] 3. The first mounting plate is connected to the rotary joint body at a single point, which increases flexibility, reduces the impact of vibration, and improves reliability. Attached Figure Description

[0015] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of the limiting structure of a waveguide rotary joint proposed in this utility model.

[0017] In the figure: 1. Rotary joint body; 2. Rotating part; 3. Fixing part; 4. First mounting plate; 5. Second mounting plate; 6. First waist hole; 7. Third mounting plate; 8. Second waist hole; 9. Fixing plate; 10. Threaded foot. 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0019] Depend on Figure 1 As shown, a limiting structure for a waveguide rotary joint is disclosed, comprising a rotary joint body 1, a rotating part 2 rotatably connected to the top of the rotary joint body 1, the rotating part 2 being rotatably connected to the top of the rotary joint body 1, enabling relative rotational movement and ensuring stable signal transmission during the rotation of the waveguide, and a fixing part 3 being fixedly connected to the outer wall of the rotary joint body 1.

[0020] The bottom of the fixing part 3 is fixedly connected to a first mounting plate 4, and the bottom of the first mounting plate 4 is provided with a second mounting plate 5. The outer wall of the first mounting plate 4 is provided with a mounting hole, and the inner wall of the mounting hole is slidably connected to a first screw. The threaded end of the first screw is located inside one of the first waist holes 6. By cooperating with the first screw and the first waist hole 6 on the second mounting plate 5, the fixing part 3 can be fixed in the vertical direction, providing structural support for the vertical adjustment in the three-coordinate direction position adjustment.

[0021] The outer wall of the second mounting plate 5 has two first waist holes 6. The bottom of the second mounting plate 5 is provided with a third mounting plate 7. The top of the third mounting plate 7 has multiple assembly holes. The inner wall of one of the assembly holes is slidably connected with a second screw. The threaded end of the second screw is located inside the other first waist hole 6. The upper first waist hole 6 cooperates with the first screw on the first mounting plate 4 to fix the vertical position. The lower first waist hole 6 cooperates with the second screw on the third mounting plate 7 to make adaptive left and right position adjustments. The bottom outer wall of the third mounting plate 7 has two second waist holes 8.

[0022] The third mounting plate 7 works with the second mounting plate 5 to achieve left and right position adjustment. The two second waist holes 8 at the bottom work with the threaded feet 10 in the support assembly to allow for front and back position adjustment, serving as a bridge connecting the second mounting plate 5 and the support assembly.

[0023] The bottom of the third mounting plate 7 is provided with a support assembly, which includes a fixing plate 9. The bottom of the third mounting plate 7 is in contact with the top of the fixing plate 9. A plurality of threaded feet 10 are fixedly connected to the top of the fixing plate 9. The threaded ends of two threaded feet 10 are respectively located inside two second waist holes 8. The fixing plate 9 provides stable support for the whole and provides a fixed installation position for the threaded feet 10, ensuring the structural stability of the support assembly.

[0024] The first screw, the second screw, and the threaded foot 10 are all threaded with nuts. After the positions of each component are adjusted, the nuts are tightened to form a fastening effect, preventing relative movement of each component during operation, ensuring the stability of the entire limiting structure, thereby reducing the force on the rotating part 2 relative to the fixed part 3 and reducing wear.

[0025] The first mounting plate 4, the second mounting plate 5, and the third mounting plate 7 are not limited to adjusting the position using a form of waist hole; for example, they can be adjusted using an array of circular holes, a guide rail, etc. The fixing point between the rotary joint body 1 and the first mounting plate 4 is not limited to a single point; it can also be a double-point type, with a slender thin plate connected to it. The purpose is to reduce the degree of freedom constraint of the four-point planar connection and reduce the impact of vibration. The first mounting plate 4, the second mounting plate 5, and the third mounting plate 7 can be used in combination, not limited to releasing the degree of freedom in the plumb direction first and then releasing the degree of freedom in the horizontal direction. They can be combined according to the actual application.

[0026] Working principle: During use, the first screw on the first mounting plate 4 can be adjusted up and down through the first waist hole 6 above the second mounting plate 5, while the first waist hole 6 below the second mounting plate 5 can be adjusted left and right through the second screw on the third mounting plate 7. The two second waist holes 8 at the bottom of the third mounting plate 7 can be adjusted forward and backward through the multiple threaded feet 10 on the top of the fixing plate 9. After each round of adjustment, multiple nuts are rotated sequentially onto the first screw, the second screw, and the threaded feet 10 to form a fastening effect. The overall position of the fixing part 3 on the rotating joint body 1 is adjustable in three coordinate directions. After installation, the force on the rotating part 2 relative to the fixing part 3 can be reduced, the wear of the rotating joint body 1 can be greatly reduced, and the service life and reliability of the rotating joint body 1 can be improved.

[0027] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A limiting structure for a waveguide rotary joint, comprising a rotary joint body (1), characterized in that, The top of the rotary joint body (1) is rotatably connected to a rotating part (2), the outer wall of the rotary joint body (1) is fixedly connected to a fixing part (3), the bottom of the fixing part (3) is fixedly connected to a first mounting plate (4), the bottom of the first mounting plate (4) is provided with a second mounting plate (5), the outer wall of the first mounting plate (4) is provided with a mounting hole, the inner wall of the mounting hole is slidably connected to a first screw, the outer wall of the second mounting plate (5) is provided with two first waist holes (6), the bottom of the second mounting plate (5) is provided with a third mounting plate (7), the top of the third mounting plate (7) is provided with multiple assembly holes, the inner wall of one of the assembly holes is slidably connected to a second screw, the bottom outer wall of the third mounting plate (7) is provided with two second waist holes (8), and the bottom of the third mounting plate (7) is provided with a support component.

2. The limiting structure of a waveguide rotary joint according to claim 1, characterized in that, The support assembly includes a fixing plate (9), the bottom of the third mounting plate (7) is in contact with the top of the fixing plate (9), and a plurality of threaded feet (10) are fixedly connected to the top of the fixing plate (9).

3. The limiting structure of a waveguide rotary joint according to claim 1, characterized in that, The threaded end of the first screw is located inside one of the first waist holes (6).

4. The limiting structure of a waveguide rotary joint according to claim 1, characterized in that, The threaded end of the second screw is located inside another first waist hole (6).

5. The limiting structure of a waveguide rotary joint according to claim 2, characterized in that, The threaded ends of the two threaded feet (10) are located inside the two second waist holes (8), respectively.

6. The limiting structure of a waveguide rotary joint according to claim 2, characterized in that, The first screw, the second screw, and the threaded foot (10) are all threaded with nuts.

Images