Radar rotation adjusting mechanism

Abstract

The utility model discloses a radar rotation adjusting mechanism, which belongs to the technical field of satellite antennas and comprises an antenna body, a radar host and a support frame which are sequentially connected. The support frame is provided with an arc-shaped hole; the adjusting assembly comprises a bottom plate, a sliding piece, a lubricating piece and a locking piece. The sliding piece comprises an arc-shaped stop block, at least two sliding columns and bushings in one-to-one correspondence with the sliding columns. The sliding piece is limited in the arc-shaped hole and can slide in the arc-shaped hole, so that the radar host rotates around the supporting part and is used for adjusting the pitch angle of the antenna body; the supporting part is provided with an arc-shaped groove in sliding fit with the lubricating piece. And the bottom plate is provided with a locking hole matched with the locking piece, and the locking hole is used for fixing the sliding piece in the arc-shaped hole so as to lock the pitch angle of the antenna body. According to the radar rotation adjusting mechanism, the number of parts is small, adjustment is easy, operation is simple, when the rotation angle needs to be adjusted, the rotation angle can be adjusted only by lifting the locking piece, and after adjustment is completed, the locking piece is pressed down, and the rotation angle can be locked.

Description

Technical Field

[0001] The utility model relates to the technical field of satellite antennas, in particular to a radar rotation adjustment mechanism. Background Art

[0002] Landslides and collapses, the main forms of geological disasters, have become the main types of larger geological disasters in recent years, seriously threatening people's safety and engineering construction. Various geological reasons (stratum lithology, topography, surface coverage, etc.) and human activities (mines, mining, underground engineering, etc.) can induce landslides, collapses, mudslides and other slope collapse geological disasters, which all have varying degrees of surface deformation during their occurrence and development. The core of landslide disaster warning is to obtain slope deformation information through slope deformation monitoring, and then predict the location, area and time of the landslide.

[0003] After the traditional global positioning system, total station and other manual contact methods and laser three-dimensional scanning methods, microwave remote sensing methods (such as L, X, Ku bands) that belong to the same electromagnetic spectrum as optics but have lower frequencies and longer wavelengths have developed rapidly in recent years due to their principle advantages of all-day, all-weather, long-distance and high-precision. They have become the representative of advanced and applicable technologies for slope deformation monitoring. Compared with traditional monitoring methods, microwave remote sensing technology has the advantages of wide monitoring range, non-contact measurement, and continuous spatial coverage, which is conducive to the determination of slope surface deformation areas and the prediction of overall deformation trends; compared with three-dimensional laser scanners and close-range photogrammetry technology, it has the advantages of long monitoring distance, high monitoring accuracy, and low impact of meteorological conditions (clouds, rain, fog, etc.).

[0004] However, most microwave radars currently use synthetic aperture radars, which are large, heavy, and have complex angle adjustment and data processing problems. Due to the use of synthetic aperture technology, they are easily affected by the environment and defocused, resulting in monitoring and reporting errors. In comparison, real aperture radars can directly obtain the three-dimensional deformation displacement of the target, which is more suitable for monitoring and early warning of large-scale high and steep slope landslides and emergency monitoring after landslide disasters to ensure the safety of rescue personnel. However, real aperture radars also have the problems of large size, heavy weight, and complex angle adjustment. Utility Model Content

[0005] The utility model aims to provide a radar rotation adjustment mechanism to solve the problem of complicated angle adjustment of existing microwave radars.

[0006] The technical solution of the utility model to solve the above technical problems is as follows:

[0007] A radar rotation adjustment mechanism comprises: an antenna body, a radar host arranged on the back side of the antenna body, and a support frame connected to the radar host;

[0008] The support frame includes two correspondingly arranged support parts, the two support parts are rotatably connected to the two sides corresponding to the radar host through adjustment components respectively, and the support parts are provided with arc-shaped holes facing the radar host;

[0009] The adjustment assembly includes a bottom plate arranged on the radar host, a sliding member and a lubricating member arranged on the bottom plate, and a locking member arranged on the supporting part;

[0010] The sliding part includes an arc-shaped stopper, a sliding column, and a bushing corresponding to the sliding column; one end of the sliding column is connected to the bottom plate, and the other end of the sliding column extends into the arc-shaped hole. The bushing is sleeved on the corresponding sliding column and slidingly cooperates with the side wall of the arc-shaped hole. The arc-shaped stopper is slidably arranged in the arc-shaped hole and connected to the sliding column; the sliding part is restricted in the arc-shaped hole and can slide in the arc-shaped hole, so that the radar host rotates around the supporting part, which is used to adjust the pitch angle of the antenna body.

[0011] Furthermore, the base plate is provided with a blind hole groove for fixing the lubricating part, the lubricating part extends out of the blind hole groove and slidably cooperates with the side wall of the arc groove, and the rotation center of the arc groove, the rotation center of the arc hole and the rotation center of the radar host coincide.

[0012] Furthermore, a line connecting the geometric center of the lubricating part and the geometric center of the sliding part passes through the rotation center of the radar host.

[0013] Furthermore, the lubricating component is in the form of a rectangular block, and is made of oil-free self-lubricating material.

[0014] Furthermore, the inner side of the arc-shaped hole faces the antenna body, and the arc-shaped groove is located on the inner side of the arc-shaped hole.

[0015] Furthermore, the arc-shaped hole is a stepped hole, which includes a first arc-shaped slide groove and a second arc-shaped slide groove that are connected to each other; the width of the first arc-shaped slide groove is greater than the width of the second arc-shaped slide groove, and the first arc-shaped slide groove is far away from the radar host;

[0016] The slide column extends into the second arc-shaped slide groove, the bushing is slidably matched with the side wall of the second arc-shaped slide groove, and the arc-shaped stopper is slidably matched with the side wall and the bottom wall of the first arc-shaped slide groove.

[0017] Furthermore, an arc-shaped cover plate is provided at one end of the first arc-shaped slide groove away from the second arc-shaped slide groove.

[0018] Furthermore, the locking member is a self-locking spring pin, which is arranged on the support portion, and a pin of the self-locking spring pin passes through the support portion and cooperates with a locking hole arranged on the bottom plate.

[0019] Furthermore, the support frame includes a horizontally arranged support plate and two vertically arranged support arms; the two support arms are symmetrically arranged on both sides of the support plate, so that the support frame is U-shaped as a whole, and the support part is formed on the top of the support arm.

[0020] Furthermore, the support arm includes a vertical portion and an inclined portion; the support portion is formed on the top of the vertical portion, the bottom of the vertical portion is connected to the top of the inclined portion, and the bottom of the inclined portion is connected to the support plate.

[0021] The utility model has the following beneficial effects:

[0022] (1) The radar rotation adjustment mechanism of the utility model has few parts, simple adjustment and simple operation. When the rotation angle (pitch angle) needs to be adjusted, the rotation angle (pitch angle) can be adjusted by only lifting the locking piece. After the adjustment is completed, the rotation angle can be locked by pressing the locking piece.

[0023] (2) The lubricating element used in the present invention can reduce the friction between the base and the support part, thereby reducing performance problems caused by wear of the components.

[0024] (3) The line connecting the geometric center of the lubricating part and the geometric center of the sliding part of the utility model passes through the rotation center of the radar host. With such an arrangement, the lubricating part as a supporting point can ensure that the friction force on each part is the same during the rotation process, thereby reducing the adjustment resistance and extending the service life of the lubricating part itself. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the radar rotation adjustment mechanism of the utility model;

[0026] Figure 2 It is a schematic diagram of the explosion structure between the support frame and the adjustment component of the utility model;

[0027] Figure 3 It is another exploded structural diagram between the support frame and the adjustment assembly of the utility model;

[0028] Figure 4 It is a schematic diagram of the connection structure between the support part and the adjustment component of the utility model.

[0029] In the figure: 10-antenna body; 20-radar host; 30-support frame; 31-support part; 32-arc hole; 33-arc groove; 34-support plate; 35-support arm; 40-adjustment assembly; 41-bottom plate; 42-locking piece; 43-locking hole; 44-lubricating piece; 45-blind hole groove; 46-arc stopper; 47-sliding column; 48-bushing; 321-first arc slide groove; 322-second arc slide groove; 323-arc cover plate; 351-vertical part; 352-inclined part. DETAILED DESCRIPTION

[0030] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0031] Please refer to Figure 1 The present embodiment provides a radar rotation adjustment mechanism, comprising: an antenna body 10, a radar host 20 and a support frame 30. The radar host 20 is arranged on the back side of the antenna body 10, and the top of the support frame 30 is rotatably matched with the two sides corresponding to the radar host 20, so as to rotate the antenna body 10 and the radar host 20, thereby adjusting the pitch angle of the antenna body 10.

[0032] The antenna body 10 can be a synthetic aperture radar antenna or a real aperture radar antenna, which is used to transmit and receive radar signals to the target detection area. Preferably, the antenna body 10 is a real aperture radar antenna. Due to the use of a real aperture radar antenna, the entire radar requires less space when deployed, has a wide deployment range, and is easy to carry and install, which can improve the environmental applicability of the radar.

[0033] The radar host 20 is mainly used to install a circuit board including transceiver components, signal processing, etc., control the azimuth motor to achieve azimuth angle change, control the radar to transmit signals toward the target area and collect echo signals, and then perform data processing to obtain deformation data of the target area.

[0034] Please refer to Figure 2 and Figure 3 The support frame 30 includes a horizontally arranged support plate 34 and two vertically arranged support arms 35, so that the support frame 30 is U-shaped as a whole. The two support arms 35 are arranged on the corresponding two sides of the support plate 34 and are symmetrical about the horizontal center plane of the support plate 34. In this embodiment, the two support arms 35 can be integrally formed with the support plate 34, or can be split and connected, and the connection method includes but is not limited to bolt connection, welding, etc. The support arm 35 includes a vertical portion 351 and an inclined portion 352. The top of the vertical portion 351 is provided with a support portion 31, the bottom of the vertical portion 351 is connected to the top of the inclined portion 352, and the bottom of the inclined portion 352 is connected to the support plate 34. The support portions 31 of the two support arms 35 are respectively connected to the corresponding two sides of the radar host 20 through the adjustment component 40. In other embodiments of the utility model, the two support arms 35 can also be connected to the middle of the support plate 34, as long as the two support arms 35 are symmetrically arranged; obviously, the support arm 35 can also be in a strip shape, an arc shape, etc. as a whole.

[0035] Reference Figures 2 to 4The adjustment assembly 40 includes a bottom plate 41, a sliding member and a locking member 42. The bottom plate 41 is fixedly arranged on the side wall of the radar host 20 by bolts, screws or rivets. The support portion 31 is provided with an arc hole 32 extending in the direction toward the radar host 20. The sliding member is arranged on the bottom plate 41, and the sliding member is limited in the arc hole 32 and can slide on the arc hole 32. The inner side of the arc hole 32 can face any direction, such as toward the antenna body 10, toward the sky, toward the bottom surface, away from the antenna body 10, etc. Preferably, the inner side of the arc hole 32 faces the antenna body 10. The bottom plate 41 is provided with at least three locking holes 43 arranged in an arc shape. All the locking holes 43 include at least positions corresponding to the lower limit and upper limit of the pitch angle adjustment. The locking member 42 is arranged on the support portion 31 and can cooperate with the locking hole 43 to fix the sliding member in the arc hole 32 to lock the pitch angle of the antenna body 10.

[0036] In this embodiment, the locking hole 43 can be a through hole or a blind hole, and can be circular or square or other shapes, which are not limited here.

[0037] In this embodiment, the locking member 42 can adopt any structure that can cooperate with the locking hole 43. In this embodiment, the locking member 42 adopts a self-locking spring pin, which is arranged on the support portion 31. The pin of the self-locking spring pin passes through the support portion 31 and cooperates with the locking hole 43.

[0038] In other embodiments of the present invention, the number of the locking holes 43 may also be 4, 5, 6, etc.

[0039] The arc hole 32 is a stepped hole, which includes a first arc slot 321 and a second arc slot 322 which are interconnected and have the same arc. The width of the first arc slot 321 is greater than the width of the second arc slot 322, so that a step is formed at the bottom of the first arc slot 321. Along the extension direction of the arc hole 32, the first arc slot 321 is away from the radar host 20, and the second arc slot 322 is close to the radar host 20.

[0040] The sliding member includes an arc-shaped stopper 46, at least two slide posts 47, and bushings 48 corresponding to the slide posts 47. One end of the slide post 47 is connected to the bottom plate 41, and the other end of the slide post 47 extends into the second arc-shaped slide groove 322. The bushing 48 is sleeved on the corresponding slide post 47 and slides with the side wall of the second arc-shaped slide groove 322. The arc-shaped stopper 46 is located in the first arc-shaped slide groove 321 and corresponds to all the slide posts 47. At the same time, the arc-shaped stopper 46 is connected to at least two slide posts 47 by bolts, screws or pins. The arc of the arc-shaped stopper 46 is consistent with the arc of the first arc-shaped slide groove 321. The arc-shaped stopper 46 can slide with the bottom wall of the first arc-shaped slide groove 321 only, and the arc-shaped stopper 46 can also slide with the side wall and the bottom wall of the first arc-shaped slide groove 321 to realize the rotation of the radar host 20 on the support frame 30.

[0041] The arc-shaped stopper 46 is used to longitudinally limit the bushing 48 on the slide post 47 on the one hand, and to limit the position between the adjustment assembly 40 and the support portion 31 on the other hand, thereby ensuring that the movement direction of the slide post 47 with the bushing 48 is along the extension direction of the first arc-shaped slide groove 321 under any circumstances.

[0042] In order to prevent dust and the like from entering the first arc-shaped slide groove 321 and affecting the sliding of the arc-shaped stopper 321, in the present embodiment, the first arc-shaped slide groove 321 is connected to an arc-shaped cover plate 323 at a position away from the second arc-shaped friction wiper 322 by bolts, screws or pins, and a sealing gasket can be provided at a position corresponding to the edge of the arc-shaped cover plate 323 and the first arc-shaped slide groove 321.

[0043] In this embodiment, the adjustment component 40 also includes a lubricating member 44, which can be a rectangular block, a cylindrical block, a triangular pyramid block, etc. The bottom plate 41 is provided with a blind hole groove 45 for fixing the lubricating member 44, and the shape and size of the blind hole groove 45 match the lubricating member 44. The support portion 31 is provided with an arc groove 33 facing the antenna body 10, and the arc groove 33 is a blind groove. The arc groove 33 is located on the inner side of the arc hole 32. Preferably, the inner side of the arc groove 33 faces the antenna body 10, and the rotation center of the arc groove 33 coincides with the rotation center of the arc hole 32 and the rotation center of the radar host 20. The lubricating member 44 is fixedly installed in the blind hole groove 45 by bolts, screws or pins, and after extending out of the blind hole groove 45, it slides with the bottom wall of the arc groove 33 to reduce the friction between the bottom plate 41 and the support portion 31 during rotation adjustment. Preferably, the lubricating member 44 slides with the bottom wall of the arc groove 33 through a plane.

[0044] In this embodiment, the line connecting the geometric center of the lubricating part 44 and the geometric center of the sliding part passes through the rotation center of the radar host 20. With this arrangement, the lubricating part 44, which serves as a supporting point, can ensure that the friction force on each part thereof is the same during the rotation process, thereby reducing the adjustment resistance and extending the service life of the lubricating part 44 itself.

[0045] In order for the lubricating element 44 to lubricate and reduce friction, it is made of oil-free lubricating material, such as brass, cast iron and other alloy materials embedded with graphite, polytetrafluoroethylene or molybdenum disulfide, or a composite material composed of the above materials.

[0046] The working process of the radar rotation adjustment mechanism of the utility model:

[0047] (1) Loosen the locking member 42 to separate the locking member 42 from the locking hole 43. At this time, the sliding column 47 with the bushing 48 can slide in the second arc-shaped sliding groove 322, and the arc-shaped stopper 46 can slide in the first arc-shaped sliding groove 321;

[0048] (2) rotating the antenna body 10 to a desired elevation angle position;

[0049] (3) The locking piece 42 is matched with the locking hole 43 to fix the antenna body 10 at a desired elevation angle.

[0050] The radar rotation adjustment mechanism of this embodiment has few components, simple adjustment and simple operation. When the rotation angle (pitch angle) needs to be adjusted, it is only necessary to loosen the locking piece 42 to adjust the rotation angle (pitch angle). After the adjustment is completed, the locking piece 42 is matched with the locking hole 43 to lock the rotation angle and fix the antenna body 10 at the desired pitch angle position.

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A radar rotation adjustment mechanism, characterized in that: include: An antenna body (10), a radar host (20) arranged on the back side of the antenna body (10), and a support frame (30) connected to the radar host (20); The support frame (30) comprises two correspondingly arranged support parts (31), the two support parts (31) are rotatably connected to two sides corresponding to the radar host (20) through adjustment components (40), and the support parts (31) are provided with an arc-shaped hole (32) facing the radar host (20); The adjustment assembly (40) comprises a base plate (41) arranged on the radar host (20), a sliding member and a lubricating member (44) arranged on the base plate (41), and a locking member (42) arranged on the supporting portion (31); The sliding member comprises an arc-shaped stopper (46), a slide post (47), and a bushing (48) corresponding to the slide post (47); one end of the slide post (47) is connected to the bottom plate (41), and the other end of the slide post (47) extends into the arc-shaped hole (32); the bushing (48) is sleeved on the corresponding slide post (47) and slidably cooperates with the side wall of the arc-shaped hole (32); the arc-shaped stopper (46) is slidably arranged in the arc-shaped hole (32) and connected to the slide post (47); the sliding member is restricted in the arc-shaped hole (32) and can slide in the arc-shaped hole (32), so that the radar host (20) rotates around the support portion (31) to adjust the pitch angle of the antenna body (10).

2. The radar rotation adjustment mechanism according to claim 1, characterized in that: The bottom plate (41) is provided with a blind hole groove (45) for fixing the lubricating member (44); the lubricating member (44) extends out of the blind hole groove (45) and slidably cooperates with the side wall of the arc groove (33); the rotation center of the arc groove (33), the rotation center of the arc hole (32) and the rotation center of the radar host (20) coincide with each other.

3. The radar rotation adjustment mechanism according to claim 2, characterized in that: A line connecting the geometric center of the lubricating part (44) and the geometric center of the sliding part passes through the rotation center of the radar host (20).

4. The radar rotation adjustment mechanism according to claim 2, characterized in that: The lubricating element (44) is in the form of a rectangular block and is made of oil-free self-lubricating material.

5. The radar rotation adjustment mechanism according to claim 2, characterized in that: The inner side of the arc-shaped hole (32) faces the antenna body (10), and the arc-shaped groove (33) is located on the inner side of the arc-shaped hole (32).

6. The radar rotation adjustment mechanism according to claim 1, characterized in that: The arc-shaped hole (32) is a stepped hole, comprising a first arc-shaped slide groove (321) and a second arc-shaped slide groove (322) which are connected to each other; the width of the first arc-shaped slide groove (321) is greater than the width of the second arc-shaped slide groove (322), and the first arc-shaped slide groove (321) is far away from the radar host (20); The slide column (47) extends into the second arc-shaped slide groove (322), the bushing (48) is slidably matched with the side wall of the second arc-shaped slide groove (322), and the arc-shaped stopper (46) is slidably matched with the side wall and bottom wall of the first arc-shaped slide groove (321).

7. The radar rotation adjustment mechanism according to claim 6, characterized in that: An arc-shaped cover plate (323) is provided at one end of the first arc-shaped slide groove (321) away from the second arc-shaped slide groove (322).

8. The radar rotation adjustment mechanism according to claim 1, characterized in that: The locking member (42) is a self-locking spring pin, which is arranged on the support portion (31). The pin of the self-locking spring pin passes through the support portion (31) and matches with a locking hole (43) arranged on the bottom plate (41).

9. The radar rotation adjustment mechanism according to any one of claims 1 to 8, characterized in that: The support frame (30) comprises a horizontally arranged support plate (34) and two vertically arranged support arms (35); the two support arms (35) are symmetrically arranged on both sides of the support plate (34), so that the support frame (30) is U-shaped as a whole, and the support portion (31) is formed on the top of the support arm (35).

10. The radar rotation adjustment mechanism according to claim 9, characterized in that: The support arm (35) comprises a vertical portion (351) and an inclined portion (352); the support portion (31) is formed at the top of the vertical portion (351), the bottom of the vertical portion (351) is connected to the top of the inclined portion (352), and the bottom of the inclined portion (352) is connected to the support plate (34).

Images