Satellite antenna rotary table seat frame and satellite antenna

Abstract

The invention provides a satellite antenna rotary table seat frame and a satellite antenna, the rotary table seat frame comprises a reflecting surface assembling carrier, a first adjusting assembly and a second adjusting assembly, the first adjusting assembly and the second adjusting assembly jointly adjust the longitude and latitude positions of the reflecting surface assembling carrier, the first adjusting assembly comprises a first semi-arc strip, and the second adjusting assembly comprises a second semi-arc strip. The reflecting surface assembly carrier is provided with two groups of plane orthogonal connecting structures, the first semicircular arc strip and the second semicircular arc strip are respectively and correspondingly connected with one group in a pivoting manner, the first semicircular arc strip and the second semicircular arc strip can be driven to reciprocate along respective arc extending directions and are arranged in a staggered manner in the diameter direction, and the first semicircular arc strip and the second semicircular arc strip are connected in a staggered manner in the reciprocating process. The first semi-arc strip and the second semi-arc strip are always kept concentric, and one of the first semi-arc strip and the second semi-arc strip can rotate around the vertical axis. According to the invention, the precise synchronous satellite-following and top-passing function of the satellite reflecting surface is realized, the structure is simple, and the use reliability of the device can be obviously improved.

Description

Technical Field

[0001] The present invention relates to the technical field of satellite antenna design, and particularly relates to a satellite antenna turntable pedestal and a satellite antenna. Background Art

[0002] As a radio communication device, satellite antennas play a huge economic and social benefit. Due to the rise of various low-earth orbit constellation Internet systems, the overflight frequency of low-earth orbit satellites is increasing. The existing satellite antennas in the form of AE axes (i.e., having an azimuth axis and an elevation axis) cannot meet the requirement of continuously tracking the area where the satellite passes about ±6° directly above the satellite antenna. In order to overcome the aforementioned deficiencies of the satellite antennas in the form of AE axes, a set of skew axes is added to the satellite antennas in the form of AE axes to form satellite antennas in the form of AET axes (i.e., having an azimuth axis, an elevation axis, and a tilt axis). Since a set of skew axes is added, the overall cost of the satellite antenna increases and the reliability decreases. The prior art also discloses an antenna pedestal in the form of XY axes, but this form of satellite antenna has naturally excessive torque, which causes great trouble in installing equipment on the back of the satellite reflector surface. The disadvantages of this structure are particularly prominent in the gateway stations related to the field of constellation Internet. Summary of the Invention

[0003] The satellite antenna turntable pedestal and satellite antenna designed by the present invention can overcome the deficiencies of the existing satellite antenna turntable pedestal, such as high manufacturing cost, complex structure design, and low reliability.

[0004] The object of the present invention is to provide a satellite antenna turntable pedestal, which includes a reflector assembly carrier, a first adjustment component, and a second adjustment component. The first adjustment component and the second adjustment component are jointly used to adjust the longitude and latitude positions of the reflector assembly carrier. The first adjustment component includes a first semi-circular bar, and the second adjustment component includes a second semi-circular bar. The reflector assembly carrier has two sets of connection structures. One set of connection structures includes two relatively arranged first connection ends, and the other set of connection structures includes two relatively arranged second connection ends. The central connection line between the two first connection ends is the first connection line, and the central connection line between the two second connection ends is the second connection line. The plane of the first connection line is orthogonal to the plane of the second connection line. The two ends of the first semi-circular bar are respectively pivotally connected to the two first connection ends in a one-to-one correspondence, and the two ends of the second semi-circular bar are respectively pivotally connected to the two second connection ends in a one-to-one correspondence. The first semi-circular bar and the second semi-circular bar can be driven to reciprocate along their respective arc extension directions and are internally staggered in their diameter directions. During the reciprocating movement, the first semi-circular bar and the second semi-circular bar always keep the arc centers concentric with a first point, and one of the first semi-circular bar and the second semi-circular bar can rotate around the vertical axis passing through the first point.

[0005] In some embodiments, the reflecting surface assembly carrier includes an annular body, the two first connection ends and the two second connection ends are respectively located on the outer circumferential wall surface of the annular body, and the center of the annular body is concentric with the first point.

[0006] In some embodiments, the first adjustment assembly further includes a first mounting seat and a first driving member for driving the first semi-circular bar to reciprocate, the second adjustment assembly further includes a second mounting seat and a second driving member for driving the second semi-circular bar to reciprocate, the second mounting seat is used for fixedly connecting with the ground, the first semi-circular bar is slidably connected to the first mounting seat, the second semi-circular bar is slidably connected to the second mounting seat, and the first mounting seat is rotatably connected to the top of the second mounting seat so that the first semi-circular bar can rotate around the vertical axis during the process that the first semi-circular bar and the second semi-circular bar are driven to reciprocate.

[0007] In some embodiments, a plurality of first teeth are formed on the first arc surface of the first semi-circular bar at intervals along the arc extension direction of the first semi-circular bar, the first driving member includes a first rotary motor fixed on the first mounting seat, a first driven gear rotatably connected to the first mounting seat, and a first transmission belt tensioned between the first driven gear and the first output gear of the first rotary motor, and the first driven gear meshes with the first teeth; and / or, a plurality of second teeth are formed on the second arc surface of the second semi-circular bar at intervals along the arc extension direction of the second semi-circular bar, the second driving member includes a second rotary motor fixed on the second mounting seat, a second driven gear rotatably connected to the second mounting seat, and a second transmission belt tensioned between the second driven gear and the second output gear of the second rotary motor, and the second driven gear meshes with the second teeth.

[0008] In some embodiments, the sides of the first semi-circular bar and the second semi-circular bar close to the reflecting surface assembly carrier are the inner sides, and the sides far from the reflecting surface assembly carrier are the outer sides. The first teeth and the first rotary motor are both located on the inner side of the first semi-circular bar, and the second teeth and the second rotary motor are both located on the outer side of the second semi-circular bar.

[0009] In some embodiments, first sliding grooves are formed on opposite sides of the first mounting base. The first sliding grooves are cross grooves, and the cross section of the first semi-circular arc strip is a cross shape matching the shape and size of the cross grooves; and / or, second sliding grooves are formed on opposite sides of the second mounting base. The second sliding grooves are cross grooves, and the cross section of the second semi-circular arc strip is a cross shape matching the shape and size of the cross grooves.

[0010] In some embodiments, the second mounting base has a receiving groove, and the second rotating motor is at least partially assembled in the receiving groove.

[0011] In some embodiments, both ends of the first semi-circular arc strip are rotatably connected to the first connection end through first end heads, and the first end heads are detachably connected to the first semi-circular arc strip; and / or, both ends of the second semi-circular arc strip are rotatably connected to the second connection end through second end heads, and the second end heads are detachably connected to the second semi-circular arc strip.

[0012] The present invention also provides a satellite antenna, including a satellite reflector and a turntable base frame assembled under the satellite reflector. The turntable base frame is the above-mentioned satellite antenna turntable base frame.

[0013] In some embodiments, when the reflector assembly carrier includes an annular body, the annular body is coaxial with the central axis of the satellite reflector and is fixedly connected to the back surface of the satellite reflector.

[0014] The satellite antenna turntable base frame and satellite antenna of the present invention concentrically arrange and connect two semi-circular first semi-circular arc strips and second semi-circular arc strips on the reflector assembly carrier, and design one of the two semi-circular arc strips to be able to rotate around the vertical axis passing through the concentric point of the two, so that when either of them is driven to reciprocally move along the corresponding arc extension direction, the other can be synchronously adjusted accordingly, thereby realizing flexible adjustment of the orientation of the reflector assembly carrier, and further realizing the precise synchronous satellite tracking over-the-top function for the satellite reflector. The structure is simple, which can significantly improve the use reliability of the device and reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of a satellite antenna assembled with the satellite antenna turntable base frame of the present invention;

[0016] Figure 2 is Figure 1 a structural disassembly schematic diagram (three-dimensional) of the first mounting base and the second mounting base of

[0017] Figure 3 is Figure 1Schematic diagram of the local structure of one end of the second semi-circular arc bar in

[0018] Figure 4 is Figure 1 Schematic diagram of the local structure of one end of the first semi-circular arc bar in

[0019] Figure 5 is Figure 1 Schematic diagram of the three-dimensional state of the second semi-circular arc bar in and the second driving component that drives it to reciprocate;

[0020] Figure 6 is Figure 1 Schematic diagram of the three-dimensional state of the first semi-circular arc bar in and the first driving component that drives it to reciprocate;

[0021] Figure 7 is Figure 1 Schematic diagram of the three-dimensional state after the reflector assembly carrier in and the satellite reflector are assembled;

[0022] Figure 8 is a schematic diagram of the state when the satellite reflector of the satellite antenna of the present invention is adjusted to another position.

[0023] In the figure: 1. Reflector assembly carrier; 11. First connection end; 12. Second connection end; 13. Torus; 21. First semi-circular arc bar; 211. First end; 212. Second bearing; 22. First mounting seat; 221. First chute; 222. First bearing; 23. First rotary motor; 231. First output gear; 24. First driven gear; 25. First transmission belt; 31. Second semi-circular arc bar; 311. Second end; 312. Third bearing; 32. Second mounting seat; 321. Second chute; 322. Receiving groove; 33. Second rotary motor; 331. Second output gear; 34. Second driven gear; 35. Second transmission belt; 100. Satellite reflector. Detailed implementation manners

[0024] Now, the exemplary embodiments will be described more comprehensively with reference to the accompanying drawings. However, the exemplary embodiments can be implemented in various forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. In the figures, for clarity, the thickness of the regions and layers is exaggerated. In the figures, the same reference numerals denote the same or similar structures, and thus their detailed descriptions will be omitted.

[0025] The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of the embodiments of the present invention. However, those skilled in the art will recognize that the technical solutions of the present invention may be practiced without one or more of the specific details, or other methods, components, materials, etc. may be employed. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring aspects of the present invention.

[0026] The following-described embodiments are those of the satellite antenna turntable mount and satellite antenna of the present invention. This example is only a part of the embodiments of the present invention, but the protection scope of the present invention is not limited thereto. All other embodiments obtained by those of ordinary skill in the art without making creative efforts shall be covered by the protection scope of the present invention.

[0027] Please refer to in conjunction with Figures 1 to 8, according to an embodiment of the present invention, there is provided a satellite antenna turntable pedestal, including a reflector assembly carrier 1, a first adjustment assembly (not labeled in the figure) and a second adjustment assembly (not labeled in the figure). The first adjustment assembly and the second adjustment assembly are jointly used to adjust the longitude and latitude positions of the reflector assembly carrier 1. The first adjustment assembly includes a first semi-circular strip 21, and the second adjustment assembly includes a second semi-circular strip 31. The aforementioned semi-circular strip specifically refers to an arc strip segment that is semi-circular in appearance, that is, half of a complete circular ring body. The reflector assembly carrier 1 has two sets of connection structures (not labeled in the figure). One set of connection structures includes two relatively arranged first connection ends 11, and the other set of connection structures includes two relatively arranged second connection ends 12. The center line connecting the two first connection ends 11 is the first connection line (not shown and not labeled in the figure), and the center line connecting the two second connection ends 12 is the second connection line (not shown and not labeled in the figure). The first connection line is orthogonal to the plane of the second connection line (that is, in an assembly plane of the reflector assembly carrier 1, the first connection line and the second connection line are perpendicular and coplanar). The two ends of the first semi-circular strip 21 are respectively pivotally connected to the two first connection ends 11 in a one-to-one correspondence, and the two ends of the second semi-circular strip 31 are respectively pivotally connected to the two second connection ends 12 in a one-to-one correspondence. The first semi-circular strip 21 and the second semi-circular strip 31 can be driven to reciprocate along their respective arc extension directions and are arranged in an internal staggered manner in their diameter directions (that is, the radii of the first semi-circular strip 21 and the second semi-circular strip 31 are not equal, so that the two do not coincide and do not interfere in their radial directions). During the process of the first semi-circular strip 21 and the second semi-circular strip 31 being driven to produce reciprocating movement, the centers of the arcs of the first semi-circular strip 21 and the second semi-circular strip 31 always remain concentric with a first point (not shown and not labeled in the figure), and one of the first semi-circular strip 21 and the second semi-circular strip 31 can rotate around a vertical axis passing through the first point, that is, when the position of any one of the first semi-circular strip 21 and the second semi-circular strip 31 is driven to be adjusted, the attitude of the other can be synchronously adjusted accordingly.

[0028] In this technical solution, two semi-circular first semi-circular arc strips 21 and second semi-circular arc strips 31 are concentrically arranged and connected to the reflector assembly carrier 1, and one of the two semi-circular arc strips is designed to be able to rotate around the vertical axis passing through the concentric point of the two, so that when either of them is driven to reciprocate along the corresponding arc extension direction, the other can be synchronously and followingly adjusted, thereby realizing flexible adjustment of the orientation of the reflector assembly carrier 1, and further realizing the precise synchronous satellite tracking and over-the-horizon function for the satellite reflector 100. The structure is simple, which can significantly improve the reliability of the device in use and reduce costs. It can be understood that during the process of driving the first semi-circular arc strip 21 and the second semi-circular arc strip 31 to reciprocate, since the ends of the two are orthogonal and hinged (i.e., rotatably connected) to the plane of the reflector assembly carrier 1 and there is a following design between the two, the first semi-circular arc strip 21 can move within a range of 90° left and right in its plane, and at the same time, the second semi-circular arc strip 31 can also move within a range of 90° left and right in its plane. Since there is an intersection point between the two, flexible adjustment of the attitude of the satellite reflector 100 is realized during the movement of the two.

[0029] It can be understood that before specific application, tests and statistics should be carried out on the positions of the first semi-circular arc strip 21 and the second semi-circular arc strip 31 corresponding to different orientations of the satellite reflector 100 (i.e., the positions along their respective arc extension directions) to clarify the one-to-one correspondence relationship between the arc strip positions and the orientations of the satellite reflector 100.

[0030] In some embodiments, the reflector assembly carrier 1 includes a toroidal body 13, two of the first connection ends 11 and two of the second connection ends 12 are respectively located on the outer wall surface of the toroidal body 13, and the center of the toroidal body 13 is concentric with the first point. For details, see Figure 7 As shown, the reflector assembly carrier 1 is objectively the aforementioned toroidal body 13. At this time, the aforementioned first connection ends 11 and second connection ends 12 are both formed on the outer wall surface of the toroidal body 13. It can be understood that the aforementioned toroidal body 13 is a hollow structure, which can reduce the overall mass of the reflector assembly carrier 1 and the satellite reflector 100 during use, and further can reduce the power requirement for the driving component. At the same time, the hollow structure of the toroidal body 13 specifically corresponds to the central area on the back of the satellite reflector 100, which is conducive to arranging corresponding components, such as a radio transceiver equipment box, etc., in the central area on the back of the satellite reflector 100, and the structural design and layout are more reasonable.

[0031] In some embodiments, the first adjustment component further includes a first mounting seat 22 and a first driving member (not labeled in the figure) for driving the first semi-circular bar 21 to reciprocate. The second adjustment component further includes a second mounting seat 32 and a second driving member (not labeled in the figure) for driving the second semi-circular bar 31 to reciprocate. The second mounting seat 32 is fixedly connected to the ground (which can of course be other fixed structures, such as a fixed base formed on the ground). The first semi-circular bar 21 is slidably connected to the first mounting seat 22, and the second semi-circular bar 31 is slidably connected to the second mounting seat 32. The first mounting seat 22 is rotatably connected to the top of the second mounting seat 32 so that the first semi-circular bar 21 can rotate around the vertical axis during the reciprocating movement of the first semi-circular bar 21 and the second semi-circular bar 31. Specifically, refer to Figure 2 As shown, a corresponding groove is formed on the top of the second mounting seat 32. The bottom of the first mounting seat 22 is pivotally connected to the aforementioned groove through a rotating shaft and a first bearing 222 sleeved on the rotating shaft.

[0032] In this technical solution, the movable connection between the first semi-circular bar 21 and the second semi-circular bar 31 is formed by the rotatable connection between the first mounting seat 22 and the second mounting seat 32, and the structure is simple and reliable.

[0033] In some embodiments, a plurality of first teeth (not labeled in the figure) are formed on the first arc surface of the first semi-circular bar 21 at intervals along the arc extension direction of the first semi-circular bar 21. The first driving member includes a first rotating motor 23 fixed on the first mounting seat 22, a first driven gear 24 rotatably connected to the first mounting seat 22, and a first transmission belt 25 tensioned between the first driven gear 24 and the first output gear 231 of the first rotating motor 23. The first driven gear 24 meshes with the first teeth; and / or, a plurality of second teeth (not labeled in the figure) are formed on the second arc surface of the second semi-circular bar 31 at intervals along the arc extension direction of the second semi-circular bar 31. The second driving member includes a second rotating motor 33 fixed on the second mounting seat 32, a second driven gear 34 rotatably connected to the second mounting seat 32, and a second transmission belt 35 tensioned between the second driven gear 34 and the second output gear 331 of the second rotating motor 33. The second driven gear 34 meshes with the second teeth. The aforementioned first teeth and second teeth should be continuously arranged in their entirety on the semi-circular arc surfaces to ensure the realization of the left-right 90° movement range of the first semi-circular bar 21 and the second semi-circular bar 31 in their respective corresponding planes.

[0034] In this technical solution, both the first driving component and the second driving component adopt the synchronous belt drive method to adjust the positions of the corresponding arc-shaped bars. Compared with the method of directly meshing the motor output gear with the driven gear, the tensioning effect of the transmission belt can be utilized to ensure the accuracy of the transmission.

[0035] Specifically, refer to Figure 1 As shown, in some embodiments, the sides of the first semi-circular arc bar 21 and the second semi-circular arc bar 31 close to the reflection surface assembly carrier 1 are the inner sides, and the sides far from the reflection surface assembly carrier 1 are the outer sides. Both the first tooth and the first rotating motor 23 are located inside the first semi-circular arc bar 21 (i.e., Figure 1 the upper side in the shown orientation), and both the second tooth and the second rotating motor 33 are located outside the second semi-circular arc bar 31 (i.e., Figure 1 the lower side in the shown orientation).

[0036] In this technical solution, setting the first tooth and the first rotating motor 23 inside the first semi-circular arc bar 21 and setting the second tooth and the second rotating motor 33 outside the second semi-circular arc bar 31 can make the structure more reasonable and compact.

[0037] In some embodiments, the first mounting seat 22 is constructed with first sliding grooves 221 on its opposite sides. The first sliding grooves 221 are cross-shaped grooves, and the cross-section of the first semi-circular arc bar 21 is a cross shape matching the shape and size of the cross-shaped groove; and / or, the second mounting seat 32 is constructed with second sliding grooves 321 on its opposite sides. The second sliding grooves 321 are cross-shaped grooves, and the cross-section of the second semi-circular arc bar 31 is a cross shape matching the shape and size of the cross-shaped groove. Specifically, refer to Figure 3 and Figure 4 As shown, both the aforementioned first semi-circular arc bar 21 and second semi-circular arc bar 31 include a central main semi-ring. Taking the first semi-circular arc bar 21 as an example, the aforementioned first tooth is formed on the inner ring surface of this semi-ring, and convex strips protruding outward are formed on the two end faces of the semi-ring (i.e., Figure 4 the left and right sides in the shown orientation). The convex strips on both sides can be slidably inserted into the two opposite concave parts of the cross-shaped groove on the first mounting seat 22, which can improve the anti-overturning ability of the first semi-circular arc bar 21. The structural design of the second semi-circular arc bar 31 is similar to that of the first semi-circular arc bar 21, and will not be elaborated here.

[0038] Specifically, refer to Figure 2 As shown, in some embodiments, the second mounting seat 32 has a receiving groove 322, and the second rotating motor 33 is at least partially assembled in the receiving groove 322, which can further improve the structural compactness of the device.

[0039] Continue to refer to Figure 3 andFigure 4 As shown, in some embodiments, both ends of the first semi-circular arc strip 21 are rotatably connected to the first connection end 11 through the first end 211 (for example, through the second bearing 212), and the first end 211 and the first semi-circular arc strip 21 are detachably connected (for example, bolted); and / or, both ends of the second semi-circular arc strip 31 are rotatably connected to the second connection end 12 through the second end 311 (for example, through the third bearing 312), and the second end 311 and the second semi-circular arc strip 31 are detachably connected (for example, bolted).

[0040] In this technical solution, by detachably connecting the first end 211 and the second end 311 to both ends of the first semi-circular arc strip 21 or the second semi-circular arc strip 31, when the ends of the arc strip are worn after long-term operation, only the ends need to be replaced and maintained, without the need to replace the entire arc strip, reducing the maintenance cost.

[0041] Specifically refer to Figure 8 As shown, the second semi-circular arc strip 31 slides along the guiding direction of the second sliding groove 321 of the second mounting seat 32 (i.e., the semi-circular track direction) driven by the second driving component 33, and the first semi-circular arc strip 21 slides along the guiding direction of the first sliding groove 221 of the first mounting seat 22 driven by the first driving component 23 at the same time, and the satellite reflector 100 can be tilted to one side, and the structure and control are extremely simple.

[0042] According to an embodiment of the present invention, a satellite antenna is further provided, including a satellite reflector 100 and a turntable base frame assembled under the satellite reflector 100. The turntable base frame is the above-mentioned satellite antenna turntable base frame. When the reflection surface assembly carrier 1 includes an annular body 13, the annular body 13 is coaxial with the central axis of the satellite reflector 100 and fixedly connected to the back surface of the satellite reflector 100. At this time, components such as a radio transceiver equipment box can be arranged in the area between the back surface of the satellite reflector 100 and the inner wall surface of the annular body 13, and the structural design and layout are more reasonable.

[0043] Those skilled in the art can easily understand that, on the premise of no conflict, the advantageous technical features of the above-mentioned various methods can be freely combined and superimposed.

[0044] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A satellite antenna turntable pedestal, characterized in that, It includes a reflector assembly carrier (1), a first adjustment component and a second adjustment component. The first adjustment component and the second adjustment component are jointly used to adjust the longitude and latitude positions of the reflector assembly carrier (1). The first adjustment component includes a first semi-circular bar (21), and the second adjustment component includes a second semi-circular bar (31). The reflector assembly carrier (1) has two sets of connection structures. One set of connection structures includes two relatively arranged first connection ends (11), and the other set of connection structures includes two relatively arranged second connection ends (12). The central connection line between the two first connection ends (11) is the first connection line, and the central connection line between the two second connection ends (12) is the second connection line. The plane of the first connection line is orthogonal to the plane of the second connection line. The two ends of the first semi-circular bar (21) are respectively pivotally connected to the two first connection ends (11) in a one-to-one correspondence. The two ends of the second semi-circular bar (31) are respectively pivotally connected to the two second connection ends (12) in a one-to-one correspondence. The first semi-circular bar (21) and the second semi-circular bar (31) can be driven to reciprocate along their respective arc extension directions and are internally arranged in a staggered manner in their diameter directions. During the reciprocating movement, the first semi-circular bar (21) and the second semi-circular bar (31) always keep the arc centers concentric with the first point, and one of the first semi-circular bar (21) and the second semi-circular bar (31) can rotate around the vertical axis passing through the first point.

2. The satellite antenna turntable pedestal according to claim 1, characterized in that The reflector assembly carrier (1) includes a toroid (13). The two first connection ends (11) and the two second connection ends (12) are respectively located on the outer ring wall surface of the toroid (13), and the center of the toroid (13) is concentric with the first point.

3. The satellite antenna turntable pedestal according to claim 1 or 2, characterized in that, The first adjustment component further includes a first mounting seat (22) and a first driving component for driving the first semi-circular bar (21) to reciprocate. The second adjustment component further includes a second mounting seat (32) and a second driving component for driving the second semi-circular bar (31) to reciprocate. The second mounting seat (32) is used to be fixedly connected to the ground. The first semi-circular bar (21) is slidably connected to the first mounting seat (22), and the second semi-circular bar (31) is slidably connected to the second mounting seat (32). The first mounting seat (22) is rotatably connected to the top of the second mounting seat (32) so that the first semi-circular bar (21) can rotate around the vertical axis during the process that the first semi-circular bar (21) and the second semi-circular bar (31) are driven to reciprocate.

4. The satellite antenna turntable pedestal according to claim 3, characterized in that, A plurality of first teeth are formed on a first arc surface of the first semi-circular arc strip (21) and are spaced along an arc extension direction of the first semi-circular arc strip (21). The first driving component includes a first rotating motor (23) fixed on the first mounting seat (22), a first driven gear (24) rotatably connected to the first mounting seat (22), and a first transmission belt (25) tensioned between the first driven gear (24) and a first output gear (231) of the first rotating motor (23). The first driven gear (24) meshes with the first teeth; and / or, a plurality of second teeth are formed on a second arc surface of the second semi-circular arc strip (31) and are spaced along an arc extension direction of the second semi-circular arc strip (31). The second driving component includes a second rotating motor (33) fixed on the second mounting seat (32), a second driven gear (34) rotatably connected to the second mounting seat (32), and a second transmission belt (35) tensioned between the second driven gear (34) and a second output gear (331) of the second rotating motor (33). The second driven gear (34) meshes with the second teeth.

5. The satellite antenna turntable pedestal according to claim 4, characterized in that, One side of the first semi-circular arc strip (21) and the second semi-circular arc strip (31) close to the reflection surface assembly carrier (1) is the inner side, and the side far from the reflection surface assembly carrier (1) is the outer side. The first teeth and the first rotating motor (23) are both on the inner side of the first semi-circular arc strip (21), and the second teeth and the second rotating motor (33) are both on the outer side of the second semi-circular arc strip (31).

6. The satellite antenna turntable pedestal according to claim 4, characterized in that, First sliding grooves (221) are formed on opposite sides of the first mounting seat (22). The first sliding grooves (221) are cross grooves, and a cross section of the first semi-circular arc strip (21) is a cross shape matching the shape and size of the cross grooves; and / or, second sliding grooves (321) are formed on opposite sides of the second mounting seat (32). The second sliding grooves (321) are cross grooves, and a cross section of the second semi-circular arc strip (31) is a cross shape matching the shape and size of the cross grooves.

7. The satellite antenna turntable pedestal according to claim 4, characterized in that, A receiving groove (322) is provided on the second mounting seat (32), and at least a part of the second rotating motor (33) is assembled in the receiving groove (322).

8. The satellite antenna turntable pedestal according to claim 1, characterized in that, Two ends of the first semi-circular arc strip (21) are rotatably connected to the first connection end (11) through first end heads (211), and the first end heads (211) are detachably connected to the first semi-circular arc strip (21); and / or, two ends of the second semi-circular arc strip (31) are rotatably connected to the second connection end (12) through second end heads (311), and the second end heads (311) are detachably connected to the second semi-circular arc strip (31).

9. A satellite antenna, comprising a satellite reflector (100) and a turntable pedestal assembled under the satellite reflector (100), characterized in that, The turntable base frame is the satellite antenna turntable base frame according to any one of claims 1 to 8.

10. The satellite antenna according to claim 9, characterized in that, When the reflecting surface assembly carrier (1) includes a toroidal body (13), the toroidal body (13) is coaxial with the central axis of the satellite reflecting surface (100) and fixedly connected to the back surface of the satellite reflecting surface (100).

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