Antenna rotation support structure

Abstract

The present invention discloses an antenna rotation support structure, including a bearing seat and a turntable. The lower part of the bearing seat floats axially above the base plate through an elastic component. The bearing seat is radially positioned through the inner wall and the annular step of the base plate. A plurality of thin-walled bearings are arranged on the bearing seat in sequence, and a turntable is arranged between any two adjacent thin-walled bearings. The turntable is the bearing sleeve of the lower thin-walled bearing and the core shaft of the upper thin-walled bearing. The outer ring and the top of the uppermost thin-walled bearing are installed in a pressure cover, and the pressure cover is fixed on the base plate. The turntables of each layer of the antenna can withstand large axial and radial forces, which improves the reliability and stability of the antenna and reduces the use and maintenance costs. The impact and vibration resistance of the turntables of each layer of the antenna is greatly improved, and can adapt to more severe use environments. The antenna can remove the central axis, which can effectively improve the antenna aperture efficiency and improve the antenna performance.

Description

Technical Field

[0001] The invention belongs to the field of communications and relates to an antenna rotation support structure. Background Art

[0002] With the development of modern communication technology, antenna structures have become more diverse. Multi-layer differential turntable antennas are referred to as antennas; they are one of the more important antennas, and the representative antenna is the VICTS antenna. The rotation support structure between the turntables in each layer of the antenna structure is particularly important, which directly determines the reliability, stability, and environmental adaptability of the antenna.

[0003] The commonly used antenna rotation support structure now is that the central axis provides radial and axial positioning between various moving disks, and the rollers provide axial auxiliary support at the edges. The problems with this structure are: 1. For example, the radiation layer of the VICTS antenna is a frame plus aluminum profile grid structure, and the turntable strength is low, resulting in poor impact and vibration resistance of the antenna, increased maintenance costs for antenna use, and poor environmental adaptability; 2. For example, the radiation layer of the VICTS antenna is a frame plus aluminum profile grid structure, and the turntable has low rigidity and is stressed by the central axis. It is very easy to deform under the action of external forces, reducing the stability and reliability of the antenna. Summary of the invention

[0004] The purpose of the present invention is to provide an antenna rotation support structure to solve the above-mentioned problems.

[0005] The technical solution adopted by the present invention is as follows:

[0006] An antenna rotation support structure includes a bearing seat and a turntable. The lower part of the bearing seat floats axially above the base plate through an elastic component. The bearing seat is radially positioned by the inner wall and the annular step of the base plate. A plurality of thin-walled bearings are arranged on the bearing seat in sequence. A turntable is arranged between any two adjacent thin-walled bearings. The turntable is the bearing sleeve of the lower thin-walled bearing and also the core shaft of the upper thin-walled bearing. The outer ring and the top of the uppermost thin-walled bearing are installed in a pressure cover, and the pressure cover is fixed on the base plate.

[0007] Furthermore, the number of turntables includes but is not limited to 3, including an L1 turntable, an L2 turntable and an L3 turntable.

[0008] Furthermore, thin-walled bearings are used as the rotation support pairs between one or more layers of each turntable.

[0009] Furthermore, the thin-walled bearings include but are not limited to deep groove ball bearings, angular contact ball bearings, point contact ball bearings

[0010] Furthermore, the elastic component includes a spring and a wave washer.

[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0012] 1. Each layer of the antenna turntable can withstand greater axial and radial forces, which improves the reliability and stability of the antenna and reduces the cost of use and maintenance.

[0013] 2. The impact and vibration resistance of each layer of the antenna turntable has been greatly improved, and can adapt to more severe operating environments.

[0014] 3. The antenna can remove the central axis, which can effectively improve the antenna aperture efficiency and improve the antenna performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be regarded as limiting the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative work, among which:

[0016] Figure 1 It is a schematic diagram of the structure of the present invention;

[0017] Figure 2 It is a schematic diagram of the prior art structure;

[0018] Markings in the figure: 1-pressure cover, 2-base plate, 3-L1 turntable, 4-L2 turntable, 5-L3 turntable, 6-thin-wall bearing, 7-bearing seat, 8-spring. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention, that is, the embodiments described are only part of the embodiments of the present invention, rather than all of the embodiments. 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.

[0020] 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 invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention.

[0021] It should be noted that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0022] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0023] Embodiment 1

[0024] An antenna rotation support structure provided by a preferred embodiment of the present invention includes a bearing seat 7 and a turntable. The lower part of the bearing seat 7 floats axially above the base plate 2 through an elastic component. The bearing seat 7 is radially positioned by the inner wall and the annular step of the base plate 2. A plurality of thin-walled bearings 6 are arranged in sequence on the bearing seat 7. A turntable is arranged between any two adjacent thin-walled bearings 6. The turntable is the bearing sleeve of the lower thin-walled bearing 6 and also the core shaft of the upper thin-walled bearing 6. The outer ring and the top of the uppermost thin-walled bearing 6 are installed in the pressure cover 1, and the pressure cover 1 is fixed on the base plate 2.

[0025] When working: Figure 2 In the existing technology, the bearing seat supports the turntable at the bottom layer. The edge of the turntable rotates through the ball bearing. The bearing seat is located in the middle of the bottom plate. The central axis is subjected to force during rotation. It is very easy to deform under the action of external force, which reduces the stability and reliability of the antenna.

[0026] like Figure 1 The structure of this solution can transfer the force points of each rotating disk from the center with lower strength and rigidity to the frame with higher strength and rigidity, thereby improving the antenna's ability to resist impact and vibration, and reducing the impact of deformation caused by center force on the antenna performance. The center axis can also be removed to further optimize the antenna performance.

[0027] Embodiment 2

[0028] In this embodiment, based on the first embodiment, the number of turntables is 3, including L1 turntable 3, L2 turntable 4 and L3 turntable 5. The L1 turntable 3 is a slow wave layer, the L2 turntable 4 is a radiation layer, and the L3 turntable 5 is a polarization layer. The elastic component includes a spring and a wave washer. The thin-walled bearing 6 includes but is not limited to a deep groove ball bearing, an angular contact ball bearing, and a point contact ball bearing.

[0029] During operation: the bearing seat, L1, L2, L3 and the gland are connected with thin-walled bearings, which can make L1, L2 and L3 rotate concentrically and ensure the stability of the spacing between each layer; when the antenna encounters impact vibration, the axial force and radial force generated by each layer of the turntable are transmitted to the bottom plate and the gland through the thin-walled bearings.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions and improvements made by any technician familiar with the field within the spirit and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. An antenna rotation support structure, comprising a bearing seat (7) and a turntable, characterized in that: The lower part of the bearing seat (7) floats axially above the bottom plate (2) through an elastic component. The bearing seat (7) is radially positioned through the inner wall and the annular step of the bottom plate (2). A plurality of thin-walled bearings (6) are arranged in sequence on the bearing seat (7). A turntable is arranged between any two adjacent thin-walled bearings (6). The turntable is the bearing sleeve of the lower thin-walled bearing (6) and also the core shaft of the upper thin-walled bearing (6). The outer ring and the top of the uppermost thin-walled bearing (6) are installed in the pressure cover (1), and the pressure cover (1) is fixed on the bottom plate (2); The number of turntables includes an L1 turntable (3), an L2 turntable (4) and an L3 turntable (5); Thin-walled bearings are used as the rotating support pairs between one or more layers of each turntable.

2. The antenna rotation support structure according to claim 1, characterized in that: The thin-walled bearing (6) includes but is not limited to a deep groove ball bearing, an angular contact ball bearing, and a point contact ball bearing.

3. The antenna rotation support structure according to claim 1, characterized in that: The elastic component includes a spring and a wave washer.

Images