Antenna turntable for low-orbit satellite communication and use method

Abstract

The invention relates to the technical field of satellite communication, in particular to an antenna rotary table for low-orbit satellite communication and a using method thereof.The antenna rotary table comprises a supporting frame, a transverse driver, a transverse rotating shell, a longitudinal driver, a longitudinal rotating shell, an antenna frame, a standby motor, a gear shifter, a first gear set and a second gear set; the transverse driver is arranged in the transverse rotating shell and used for driving the transverse rotating shell to rotate, the longitudinal driver is arranged in the transverse rotating shell and used for driving the longitudinal rotating shell to rotate, the antenna frame is arranged on the longitudinal rotating shell, the standby motor is arranged in the transverse rotating shell, and the gear shifter is connected with the standby motor. The control device is used for controlling the standby motor to be meshed with the first gear set and the second gear set or in a neutral gear state, the first gear set is connected with the transverse rotating shell, and the second gear set is connected with the longitudinal rotating shell. Basic functions can be maintained by using a standby motor system in emergency, and the reliability and efficiency of low-orbit satellite communication are greatly improved.

Description

Technical Field

[0001] The present invention relates to the field of satellite communication technology, and in particular to an antenna turntable for low-orbit satellite communication and a use method thereof. Background Art

[0002] Low Earth Orbit (LEO) satellite communication systems are commonly used to provide broadband Internet access and other communication services worldwide. In order to effectively communicate with these fast-moving satellites, ground stations need to use antennas that can quickly adjust their directions to track the satellites.

[0003] At startup, the antenna turret enters an initialization phase to calibrate the various sensors and detect the health of the system. Once the satellite to be tracked is determined, the controller calculates the optimal pointing angle of the antenna based on the satellite's orbital data. The motor adjusts the angle of the antenna according to the commands issued by the controller to keep the antenna beam pointed at the satellite.

[0004] In the existing antenna state, two motors are used to drive the antenna to rotate in two directions respectively. If one of the motors fails, the turntable will not operate normally, thereby reducing the reliability of operation. Summary of the invention

[0005] The purpose of the present invention is to provide an antenna turntable for low-orbit satellite communications and a method of use, aiming to utilize a backup motor system to maintain basic functions in an emergency, thereby greatly improving the reliability and efficiency of low-orbit satellite communications.

[0006] To achieve the above-mentioned objectives, in a first aspect, the present invention provides an antenna turntable for low-orbit satellite communications, comprising a support frame, a transverse drive, a transverse rotation shell, a longitudinal drive, a longitudinal rotation shell and an antenna frame, wherein the transverse drive is arranged in the support frame, and is used to drive the transverse rotation shell to rotate; the longitudinal drive is arranged in the transverse rotation shell, and is used to drive the longitudinal rotation shell to rotate; the antenna frame is arranged on the longitudinal rotation shell, and also comprises a backup motor, a shifter, a first gear set and a second gear set; the backup motor is arranged in the transverse rotation shell, and the shifter is connected to the backup motor, and is used to control the backup motor to be in meshing with the first gear set and the second gear set or in a neutral state; the first gear set is connected to the transverse rotation shell, and the second gear set is connected to the longitudinal rotation shell.

[0007] Among them, the shifter includes a support rod, a shift gear, an elastic paddle, a shift motor, a reducer and a shift rod, the support rod is connected to the output end of the backup motor, the shift gear is transmission-arranged on the support rod, the shift rod is rotatably arranged on one side of the shift gear, the elastic paddle has a slot, the elastic paddle is arranged on the shift rod, the reducer is connected to the shift rod, and the output end of the shift motor is connected to the reducer.

[0008] Wherein, the shifter further comprises a return spring, and the return spring is arranged on one side of the shift lever.

[0009] Wherein, the shifter further comprises a limit plate, which is arranged on one side of the support rod and is used to limit the moving position of the shift gear.

[0010] Among them, the second gear set includes a first bevel gear, a driven gear and a second bevel gear, the driven gear is rotatably arranged on one side of the shift gear, the first bevel gear is fixedly connected to the driven gear, the second bevel gear is connected to the longitudinal rotating shell and meshes with the first bevel gear.

[0011] Wherein, the second gear set further includes a stabilizing frame, and the stabilizing frame is arranged on the outer side of the second bevel gear.

[0012] Wherein, the stabilizing frame includes a frame body, a plurality of balls and a locking screw. The frame body is slidably arranged on the supporting frame, the plurality of balls are rotatably arranged on the top of the frame body, and the locking screw is threadedly connected to the frame body and is close to the supporting frame.

[0013] In a second aspect, the present invention further provides a method for using an antenna turntable for low-orbit satellite communications, comprising: installing an antenna on the antenna stand;

[0014] The mobile transverse drive and the longitudinal drive drive the antenna frame to adjust the position so that the antenna moves synchronously with the low-orbit satellite;

[0015] Detection of problematic drives in case of mobile failures;

[0016] The shifter is activated to connect the gear set of the backup motor and the drive on the side where the problem occurs for auxiliary drive.

[0017] The present invention discloses an antenna turntable and a method of using the antenna turntable for low-orbit satellite communications. The support frame not only provides a stable installation foundation, but also bears the weight of all other components and ensures the stability and strength of the overall structure. The transverse driver is installed inside the support frame, and its main function is to adjust the angle in the horizontal direction by driving the transverse rotating shell, thereby realizing the change of the horizontal azimuth angle of the antenna. The transverse rotating shell rotates around the vertical axis, and its rotation is controlled by the transverse driver, providing a variable horizontal platform for the longitudinal driver and its upper components. The longitudinal driver is located inside the transverse rotating shell, and is responsible for driving the longitudinal rotating shell to rotate in a direction perpendicular to the horizontal plane, that is, controlling the pitch angle of the antenna. The longitudinal rotating shell is installed on the transverse rotating shell, and it can rotate according to the power provided by the longitudinal driver, thereby driving the antenna frame to perform pitch movement. The antenna frame is fixed on the longitudinal rotating shell, and changes its direction with the movement of the longitudinal rotating shell, ensuring that the antenna can always accurately point to the target to be communicated.

[0018] In addition, in order to enhance the reliability and flexibility of the system, the present invention also adds the following auxiliary mechanisms:

[0019] The backup motor is placed inside the transverse rotating shell as a backup for the main drive system, and can be enabled to ensure the normal operation of the system when the main system fails. The shifter is connected to the backup motor, and the working mode of the backup motor can be controlled by the shifter so that it is engaged with the first gear set or the second gear set, or kept in a neutral state. The first gear set is connected to the transverse rotating shell, and when the backup motor is engaged with the first gear set, it can replace the transverse drive to control the movement of the transverse rotating shell. The second gear set is connected to the longitudinal rotating shell, and when the backup motor is engaged with the second gear set, it can replace the longitudinal drive to control the movement of the longitudinal rotating shell. Through the above design, the antenna turntable provided by the present invention can not only accurately adjust the direction of the antenna under normal conditions, but also use the backup motor system to maintain basic functions in an emergency, greatly improving the reliability and efficiency of low-orbit satellite communications. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a structural diagram of an antenna turntable for low-orbit satellite communication according to the present invention.

[0022] Figure 2It is a transverse cross-sectional structural diagram of an antenna turntable for low-orbit satellite communications according to the present invention.

[0023] Figure 3 It is a right side structural diagram of an antenna turntable for low-orbit satellite communication according to the present invention.

[0024] Figure 4 The present invention is a longitudinal cross-sectional structural diagram of an antenna turntable for low-orbit satellite communications.

[0025] Figure 5 It is a structural diagram of the fault monitoring module of the present invention.

[0026] Figure 6 It is a flow chart of a method for using an antenna turntable for low-orbit satellite communications according to the present invention.

[0027] Support frame 101, transverse driver 102, transverse rotating shell 103, longitudinal driver 104, longitudinal rotating shell 105, antenna frame 106, backup motor 107, shifter 108, first gear set 109, second gear set 110, support rod 111, shift gear 112, elastic paddle 113, shift motor 114, reducer 115, shift rod 116, return spring 117, limit plate 118, first bevel gear 119, driven gear 120, second bevel gear 121, stabilizing frame 122, frame body 123, ball 124, locking screw 125, fault monitoring module 126, gyroscope 127, error calculation unit 128, judgment unit 129, control unit 130, alarm unit 131. DETAILED DESCRIPTION

[0028] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0029] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0030] First embodiment

[0031] See also Figure 1 to Figure 5 The present invention provides an antenna turntable for low-orbit satellite communication, comprising a support frame 101, a transverse driver 102, a transverse rotation shell 103, a longitudinal driver 104, a longitudinal rotation shell 105 and an antenna frame 106, wherein the transverse driver 102 is arranged in the support frame 101, and is used to drive the transverse rotation shell 103 to rotate, the longitudinal driver 104 is arranged in the transverse rotation shell 103, and is used to drive the longitudinal rotation shell 105 to rotate, the antenna frame 106 is arranged on the longitudinal rotation shell 105, and further comprises a backup motor 107, a shifter 108, a first gear set 109 and a second gear set 110, the backup motor 107 is arranged in the transverse rotation shell 103, the shifter 108 is connected to the backup motor 107, and is used to control the backup motor 107 to be in meshing with the first gear set 109 and the second gear set 110 or in a neutral state, the first gear set 109 is connected to the transverse rotation shell 103, and the second gear set 110 is connected to the longitudinal rotation shell 105.

[0032] In this embodiment, the present invention relates to an antenna turntable device for a low-orbit satellite communication system, which is intended to improve the tracking accuracy and reliability of the antenna for a ground station or other satellite targets. The support frame 101 is the basic structure of the entire device. The support frame 101 not only provides a stable installation foundation, but also bears the weight of all other components and ensures the stability and strength of the overall structure. The transverse driver 102 is installed inside the support frame 101, and its main function is to adjust the angle in the horizontal direction by driving the transverse rotating shell 103, thereby realizing the change of the horizontal azimuth angle of the antenna. The transverse rotating shell 103 rotates around the vertical axis, and its rotation is controlled by the transverse driver 102, providing a variable horizontal platform for the longitudinal driver 104 and its upper components. The longitudinal driver 104 is located inside the transverse rotating shell 103, and is responsible for driving the longitudinal rotating shell 105 to rotate in a direction perpendicular to the horizontal plane, that is, controlling the pitch angle of the antenna. The longitudinal rotating shell 105 is installed on the transverse rotating shell 103, and it can rotate according to the power provided by the longitudinal driver 104, thereby driving the antenna frame 106 to perform pitch movement. The antenna frame 106 is fixed on the longitudinal rotating shell 105, and changes its direction with the movement of the longitudinal rotating shell 105, so as to ensure that the antenna can always accurately point to the target that needs to communicate.

[0033] In addition, in order to enhance the reliability and flexibility of the system, the present invention also adds the following auxiliary mechanisms:

[0034] The backup motor 107 is placed inside the transverse rotating shell 103 as a backup for the main drive system. It can be activated when the main system fails to ensure the normal operation of the system. The shifter 108 is connected to the backup motor 107. The shifter 108 can control the working mode of the backup motor 107 so that it is engaged with the first gear set 109 or the second gear set 110, or kept in a neutral state. The first gear set 109 is connected to the transverse rotating shell 103. When the backup motor 107 is engaged with the first gear set 109, it can replace the transverse driver 102 to control the movement of the transverse rotating shell 103. The second gear set 110 is connected to the longitudinal rotating shell 105. When the backup motor 107 is engaged with the second gear set 110, it can replace the longitudinal driver 104 to control the movement of the longitudinal rotating shell 105.

[0035] Through the above design, the antenna turntable provided by the present invention can not only accurately adjust the direction of the antenna under normal conditions, but also use the backup motor 107 system to maintain basic functions in an emergency, greatly improving the reliability and efficiency of low-orbit satellite communications.

[0036] The shifter 108 includes a support rod 111, a shift gear 112, an elastic paddle 113, a shift motor 114, a reducer 115 and a shift rod 116. The support rod 111 is connected to the output end of the backup motor 107, the shift gear 112 is slidably arranged on the support rod 111, the shift rod 116 is rotatably arranged on one side of the shift gear 112, the elastic paddle 113 has a slot, the elastic paddle 113 is arranged on the shift rod 116, the reducer 115 is connected to the shift rod 116, and the output end of the shift motor 114 is connected to the reducer 115.

[0037] Support rod 111: One end of the support rod 111 is directly connected to the output shaft of the backup motor 107, and the other end is used to install other components. The shift gear 112 is designed to be able to slide on the support rod 111, and it can be moved to different positions as needed to mesh with the first gear set 109 or the second gear set 110.

[0038] The shift lever 116 is arranged on one side of the shift gear 112 by rotation, and its function is to establish or disconnect the connection between the shift gear 112 and different gear sets. When the shift lever 116 rotates, the shift gear 112 can be pushed to slide along the support rod 111 to a desired position.

[0039] Elastic paddle 113: The elastic paddle 113 is a design with a slot, which is installed on the shift lever 116. The function of the elastic paddle 113 is to cooperate with a specific position through the slot when the shift lever 116 rotates, thereby ensuring that the shift gear 112 is accurately positioned at the position of the first gear set 109 or the second gear set 110. The elastic property of the elastic paddle 113 allows it to deform when subjected to force, and to return to its original shape when not subjected to force, thereby ensuring stable contact between it and the shift lever 116.

[0040] The reducer 115 is an important transmission component, which is connected to the shift rod 116. The main task of the reducer 115 is to adjust the speed transmitted from the shift motor 114, ensure that the shift action is smooth and accurate, and prevent impact or damage caused by excessive speed.

[0041] The output shaft of the shift motor 114 is connected to the reducer 115, which is the power source for driving the entire shifting process. After the shift motor 114 is started, the torque is increased by the reducer 115, and then transmitted to the shift gear 112 via the shift rod 116, and finally the shifting action is realized.

[0042] The entire shifter 108 is designed to enable the backup motor 107 to switch quickly and reliably between different gear sets, ensuring that in the event of failure of the main drive system, the antenna turntable can still complete the necessary actions through the backup system, thereby ensuring the continuity and stability of the communication mission.

[0043] The shifter 108 further includes a return spring 117 , which is disposed on one side of the shift lever 116 .

[0044] The return spring 117 is installed on one side of the shift lever 116, and its function is to help the shift lever 116 return to the predetermined initial position after the shift is completed. The return spring 117 applies a reverse force to ensure that the shift lever 116 will not deviate from the set position due to external interference, thereby ensuring the accuracy and repeatability of each shift operation.

[0045] The shifter 108 further includes a limit plate 118 , which is disposed on one side of the support rod 111 and is used to limit the moving position of the shift gear 112 .

[0046] The limit plate 118 is disposed on one side of the support rod 111, and is mainly used to limit the movement range of the shift gear 112 to prevent it from exceeding a predetermined trajectory during the sliding process. The existence of the limit plate 118 ensures that the shift gear 112 can only move within a specified area, avoiding mechanical interference or damage caused by excessive displacement.

[0047] The second gear set 110 includes a first bevel gear 119, a driven gear 120 and a second bevel gear 121. The driven gear 120 is rotatably arranged on one side of the shift gear 112. The first bevel gear 119 is fixedly connected to the driven gear 120. The second bevel gear 121 is connected to the longitudinal rotating shell 105 and meshes with the first bevel gear 119.

[0048] The first bevel gear 119 is fixedly connected to the driven gear 120 and is used to convert the linear motion into a part of the rotational motion. The design of the first bevel gear 119 allows the power to be transmitted along different axes. The driven gear 120 is installed on one side of the shift gear 112 and forms a linkage relationship with it. When the shift gear 112 moves and meshes with it, the driven gear 120 starts to rotate and transmits the power to the first bevel gear 119. The second bevel gear 121 is connected to the longitudinal rotating shell 105 and forms a right-angle transmission relationship with the first bevel gear 119. The second bevel gear 121 receives the power from the first bevel gear 119 and then transmits it to the longitudinal rotating shell 105, thereby realizing the rotation of the longitudinal rotating shell 105.

[0049] The second gear set 110 further includes a stabilizing frame 122 , and the stabilizing frame 122 is disposed on the outer side of the second bevel gear 121 .

[0050] The stabilizing frame 122 is used to improve the working stability of the second gear set 110 .

[0051] The stabilizing frame 122 includes a frame body 123, a plurality of balls 124 and a locking screw 125. The frame body 123 is slidably disposed on the supporting frame 101. The plurality of balls 124 are rotatably disposed on the top of the frame body 123. The locking screw 125 is threadedly connected to the frame body 123 and is close to the supporting frame 101.

[0052] The frame body 123 is slidably mounted on the support frame 101, allowing it to slide freely within a certain range; a plurality of ball bearings 124 are arranged on the top of the frame body 123 to reduce friction and ensure smooth movement; the locking screw 125 is threadedly connected to the frame body 123 and is close to the position of the support frame 101. The position of the frame body 123 can be adjusted by tightening or loosening the locking screw 125, thereby achieving the purpose of fine-tuning the second gear set 110.

[0053] The antenna turntable for low-orbit satellite communication also includes a fault monitoring module 126, which is arranged on the antenna frame 106 and is used to monitor the movement error of the antenna. When it exceeds a preset value, it is determined that there is a driver failure and the backup motor 107 needs to be started for auxiliary driving.

[0054] The fault monitoring module 126 is installed on the antenna frame 106. Its core function is to continuously monitor the movement error of the antenna. Once it is found that the deviation between the actual position and the expected position exceeds the preset safety threshold, the module will automatically determine that the main drive system may have a fault and immediately start the backup motor 107 for auxiliary drive to ensure that the antenna can continue to accurately point to the target.

[0055] The fault monitoring module 126 includes a gyroscope 127, an error calculation unit 128, a judgment unit 129, a control unit 130 and an alarm unit 131. The gyroscope 127 is arranged on the antenna frame 106. The error calculation unit 128 is used to calculate the deflection error based on the data of the gyroscope 127 and the movement data of the transverse driver 102 and the longitudinal driver 104; the judgment unit 129 is used to judge whether the transverse and longitudinal deflection errors are within the preset values ​​respectively; the control unit 130 is used to control the backup motor 107 to connect with the gear set on the corresponding driver side for auxiliary drive if the deflection error is greater than the preset value; the alarm unit 131 is used to upload the fault information to the host computer.

[0056] The gyroscope 127 is one of the important components of the fault monitoring module 126. It is installed on the antenna frame 106 and can measure the angular velocity and attitude change of the antenna with high precision. The data provided by the gyroscope 127 is the key input for calculating the actual position of the antenna.

[0057] The error calculation unit 128 calculates the deflection error between the current position of the antenna and the target position using the real-time data obtained by the gyroscope 127 and the actual movement data of the lateral driver 102 and the longitudinal driver 104. With this information, the error calculation unit 128 can evaluate whether the current position of the antenna meets the preset requirements.

[0058] The judgment unit 129 is responsible for analyzing the results obtained by the error calculation unit 128. Specifically, it checks whether the lateral and longitudinal deflection errors are kept within a preset safety range. If it is detected that the error of any axis exceeds the allowable limit, the judgment unit 129 will trigger the next step.

[0059] Once the judgment unit 129 confirms that there is an abnormality, the control unit 130 will immediately intervene to control the backup motor 107 to connect with the corresponding gear set (i.e., the first gear set 109 or the second gear set 110) to start auxiliary driving. In this way, even if the main drive system fails, the antenna can still complete the necessary adjustment actions through the backup system.

[0060] The function of the alarm unit 131 is to upload relevant information to the host computer in time when the system detects a fault. This not only allows the ground control center to quickly understand the status of the equipment, but also provides a basis for subsequent troubleshooting and maintenance.

[0061] Through the coordinated work of the above-mentioned parts, the fault monitoring module 126 can identify potential problems in the first place and take measures to prevent mission interruption due to drive system failure, thereby ensuring the continuity and reliability of low-orbit satellite communications.

[0062] Second embodiment

[0063] See also Figure 6 The present invention also provides a method for using an antenna turntable for low-orbit satellite communication, comprising:

[0064] S201: Install the antenna on the antenna stand 106;

[0065] Before the communication antenna is officially used, it is necessary to first correctly install the communication antenna on the antenna frame 106. This step requires ensuring that the antenna is firmly fixed on the antenna frame 106 and all connectors have been installed in accordance with the specifications. After the installation is completed, a preliminary calibration is required to ensure that the antenna is in the correct starting position without external power.

[0066] S202 moves the transverse driver 102 and the longitudinal driver 104 to drive the antenna frame 106 to adjust the position so that the antenna moves synchronously with the low-orbit satellite;

[0067] After the antenna is installed, the next operation is to use the transverse driver 102 and the longitudinal driver 104 to adjust the position of the antenna frame 106. Through the cooperation of these two drivers, the antenna can be accurately adjusted in both horizontal and vertical dimensions to ensure that the antenna can always be aligned with the low-orbit satellite in orbit. During this process, the control system will dynamically adjust the angle of the antenna according to the real-time position data of the satellite to maintain the best communication link quality.

[0068] S203 detects the drive with the problem when a movement failure occurs;

[0069] When any abnormal situation occurs during the tracking process of the antenna, such as failure to adjust the position as expected, the fault monitoring module 126 will be immediately activated to detect and determine which drive has a problem. Through the built-in sensors and computing units, the source of the fault can be quickly located and the relevant error information can be recorded.

[0070] S204 starts the shifter 108 to connect the backup motor 107 and the gear set of the driver on the side where the problem occurs to perform auxiliary driving.

[0071] Once the specific location of the fault is determined, the control system will instruct the shifter 108 to start and connect the backup motor 107 to the gear set of the driver on the side with the problem. The backup motor 107 will take over the function of the faulty driver and continue to drive the antenna rack 106 to adjust the position to ensure that the normal tracking of the antenna is not affected. During this period, the system will also automatically record the fault information and send this data to the ground control center for subsequent diagnosis and maintenance.

[0072] What is disclosed above is only a preferred embodiment of the present invention, and it certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope of the invention.

Claims

1. An antenna turntable for low-orbit satellite communication, comprising a support frame, a transverse driver, a transverse rotation shell, a longitudinal driver, a longitudinal rotation shell and an antenna frame, wherein the transverse driver is arranged in the support frame and is used to drive the transverse rotation shell to rotate, the longitudinal driver is arranged in the transverse rotation shell and is used to drive the longitudinal rotation shell to rotate, and the antenna frame is arranged on the longitudinal rotation shell, characterized in that: It also includes a backup motor, a shifter, a first gear set and a second gear set. The backup motor is arranged in the transverse rotating shell. The shifter is connected to the backup motor and is used to control the backup motor to be in meshing with the first gear set and the second gear set or in a neutral state. The first gear set is connected to the transverse rotating shell, and the second gear set is connected to the longitudinal rotating shell.

2. The antenna turntable for low-orbit satellite communication according to claim 1, characterized in that: The shifter includes a support rod, a shift gear, an elastic paddle, a shift motor, a reducer and a shift rod, the support rod is connected to the output end of the backup motor, the shift gear is slidably arranged on the support rod, the shift rod is rotatably arranged on one side of the shift gear, the elastic paddle has a slot, the elastic paddle is arranged on the shift rod, the reducer is connected to the shift rod, and the output end of the shift motor is connected to the reducer.

3. The antenna turntable for low-orbit satellite communication according to claim 2, characterized in that: The shifter further includes a return spring, and the return spring is arranged on one side of the shift lever.

4. The antenna turntable for low-orbit satellite communication according to claim 3, characterized in that: The shifter further comprises a limit plate, which is arranged on one side of the support rod and is used to limit the moving position of the shift gear.

5. The antenna turntable for low-orbit satellite communication according to claim 4, characterized in that: The second gear set includes a first bevel gear, a driven gear and a second bevel gear. The driven gear is rotatably arranged on one side of the shift gear. The first bevel gear is fixedly connected to the driven gear. The second bevel gear is connected to the longitudinal rotating shell and meshes with the first bevel gear.

6. The antenna turntable for low-orbit satellite communication according to claim 5, characterized in that: The second gear set further includes a stabilizing frame, and the stabilizing frame is arranged on the outer side of the second bevel gear.

7. The antenna turntable for low-orbit satellite communication according to claim 6, characterized in that: The stabilizing frame includes a frame body, a plurality of balls and a locking screw. The frame body is slidably arranged on the supporting frame, the plurality of balls are rotatably arranged on the top of the frame body, and the locking screw is threadedly connected to the frame body and is close to the supporting frame.

8. A method for using an antenna turntable for low-orbit satellite communication, using the antenna turntable for low-orbit satellite communication according to any one of claims 1 to 7, It is characterized in that The method comprises: installing the antenna on the antenna stand; The mobile transverse drive and the longitudinal drive drive the antenna frame to adjust the position so that the antenna moves synchronously with the low-orbit satellite; Detection of problematic drives in case of mobile failures; The shifter is activated to connect the gear set of the backup motor and the drive on the side where the problem occurs for auxiliary drive.

Images