Satellite electric lifting adjusting device and method

Abstract

The invention provides a satellite electric lifting adjusting device and method. The satellite electric lifting adjusting device comprises a fixed base, a supporting rack, a linear guide rail, a sliding block, a servo motor, a speed reducer, a ball screw, a nut seat and a bearing supporting plate. The fixed base is mounted on the two-shaft rotary table; the supporting rack is fixedly arranged on the fixed base; the linear guide rail is installed on the supporting rack, and the sliding block is arranged on the linear guide rail in a sliding mode. One end of the ball screw is connected with the output end of the speed reducer through a coupler, and the other end of the ball screw is supported on the supporting rack through a bearing seat; the nut seat is sleeved on the ball screw; the bearing supporting plate is fixedly connected with the sliding block and the nut base. The servo motor drives the ball screw to rotate through the speed reducer, and the nut seat drives the bearing supporting plate and the sliding block to ascend and descend along the linear guide rail. The problem that an existing two-shaft rotary table cannot achieve satellite horizontal state lifting adjustment, and consequently a large-size satellite interferes with the rotary table is solved, precise lifting adjustment is achieved, and the assembly precision and efficiency are improved.

Description

Technical Field

[0001] This invention relates to the field of satellite assembly and testing technology, specifically to a satellite electric lifting and adjusting device and method. Background Technology

[0002] During satellite assembly and testing, a two-axis turntable is often required to turn the satellite from a vertical to a horizontal position. One existing two-axis turntable uses a motor-driven lead screw to turn the satellite and a motor-driven gear to rotate it in the horizontal plane. This two-axis turntable can meet the turning and rotation requirements of conventional satellites.

[0003] However, this two-axis turntable lacks the ability to adjust altitude after the satellite has flipped to a horizontal position. For satellites with large envelopes or long external payloads, when flipped to a horizontal position, the satellite itself or its external payload is prone to collision and interference with the two-axis turntable, making it impossible for such satellites to complete the flipping operation using existing two-axis turntables. Therefore, how to provide altitude adjustment capability in a horizontal position while achieving satellite flipping functionality to avoid collision and interference has become a pressing technical problem to be solved in this field. In existing technology, after the satellite is installed on a two-axis turntable and tilted to a horizontal position, the satellite can be raised or lowered using a lifting two-axis turntable trolley. This is achieved by using four jacks or screws to raise or lower the trolley. The jacks or screws are positioned near the four support legs on the bottom of the turntable, and four people simultaneously press down on the jacks or use wrenches to rotate the screws to manually lift the turntable. Conversely, releasing the jacks or rotating the screws lowers the turntable, thus achieving the satellite's lifting and adjustment function. However, manually controlling the lifting and lowering using jacks or screws makes precise height control difficult, hindering accurate achievement of performance requirements. This process requires repeated operations, is time-consuming, and inefficient. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a satellite electric lifting and adjusting device and method.

[0005] According to the present invention, a satellite electric lifting and adjusting device and method are provided, the solution of which is as follows: In a first aspect, a satellite electric lifting and adjusting device is provided, the device comprising: Fixed base for mounting to a two-axis rotary table; The support frame is fixedly mounted on the fixed base; A linear guide mechanism, mounted on the support frame, includes a guide member extending along the lifting direction and a movable member that slides with it; The electric drive mechanism includes a servo motor and a reducer, with the reducer and servo motor connected by a coupling; A screw drive mechanism includes a ball screw and a nut seat that is threadedly engaged with it. The ball screw is connected to the output end of the reducer, and the nut seat constitutes the movable output end of the screw drive mechanism. A support plate is used to directly or indirectly support a satellite, and the support plate is fixedly connected to the moving part of the linear guide mechanism and the nut seat respectively; The servo motor drives the ball screw to rotate via the reducer, and the nut seat drives the bearing plate and the moving part to move up and down along the guide.

[0006] Preferably, the support frame is a rectangular frame structure welded from two rectangular square tubes on the left and right and two baffles on the top and bottom, and the fixed base is a circular disc welded to the bottom of the support frame.

[0007] Preferably, the linear guide mechanism includes two parallel linear guides fixedly mounted on two rectangular square tubes, and multiple sliders are slidably mounted on each linear guide, the sliders constituting the moving part; the top surfaces of the multiple sliders are coplanar with the top surface of the nut seat, jointly supporting and fixing the bearing plate.

[0008] Preferably, the ball screw is located in the gap between two rectangular tubes and is arranged parallel to the linear guide rail; one end of the ball screw is installed on the upper baffle of the support frame, and the other end is installed on the lower baffle of the support frame through a bearing seat.

[0009] Preferably, the reducer is a worm gear reducer with reverse self-locking characteristics, used to prevent the bearing plate from sliding down when the servo motor loses power; the servo motor is equipped with a braking device to brake the motor shaft when power is lost.

[0010] Preferably, the fixing base has three different pitch circle sizes of mounting interfaces, namely three circles with 24 interfaces in total. 12 through holes, pitch circle dimensions are as follows: 1320 1224 and 1100, used to adapt to two-axis rotary tables of different specifications; The bearing plate has six pre-drilled M10 threaded holes, with pitch circle dimensions as follows: 1530 1224、 1000 850 630 and 500 is used for direct installation of satellites or installation of satellites with different interface sizes via an adapter plate.

[0011] Preferably, the support frame and the fixed base are welded from carbon structural steel and undergo post-weld stress relief and post-processing aging treatment. The support plate is welded from carbon structural steel and undergoes post-weld heat treatment and artificial aging treatment after machining.

[0012] Preferably, the device further includes an electrical control system; The electrical control system includes a motor controller, a touch screen, and buttons, and is installed in a portable mobile control box, connected to the servo motor via a cable.

[0013] Secondly, a method for electrically adjustable satellite elevation is provided, which specifically includes: Step S1: Install the fixed base onto the two-axis turntable; Step S2: Install the satellite onto the support plate; Step S3: Use the two-axis turntable to flip the satellite from a vertical position to a horizontal position; Step S4: When the satellite is in a horizontal position, the servo motor is started by controlling the electrical control system. The servo motor drives the ball screw to rotate through the reducer and the coupling. Step S5: The ball screw drives the nut seat and the bearing plate to move up and down along the linear guide mechanism, thereby adjusting the altitude position of the satellite in a horizontal state.

[0014] Thirdly, an electronic device is provided, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of the described satellite electric lift adjustment method.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention uses an electric lifting and adjusting device installed on a two-axis turntable to realize the vertical lifting and adjusting of the satellite after it has been flipped to a horizontal state. This enables satellites with large-volume envelopes and long-sized external payloads to be flipped using a two-axis turntable, solving the collision and interference problem caused by the inability of existing two-axis turntables to lift and lower. 2. A servo motor controls a precision ball screw, enabling precise electric control of the satellite's vertical movement, achieving accurate attitude adjustment and ensuring assembly quality. The lifting adjustment accuracy can reach within 0.1mm. 3. Convenient operation and reduced labor costs: Previously, four people were needed to operate the satellite to adjust its attitude, but now only one person is needed for precise control. The operation is convenient, which not only improves the overall satellite adjustment time but also saves labor costs, making the adjustment operation more convenient and intelligent. 4. Saves assembly and adjustment time, reduces the number of assembly operation steps, makes the assembly process smoother and simpler, and improves production efficiency. 5. Reduced unnecessary disassembly and assembly processes for individual payloads, simplified satellite assembly procedures, and resolved the interference problem between the large-volume envelope satellite's tilting and the two-axis turntable; 6. Adopting a universal design with multiple interfaces, the base is reserved with three different interface sizes to install two-axis turntables of different specifications, and the tray is reserved with multiple interface sizes to install satellites with different interface sizes. This solves the time conflict problem of using fixed two-axis turntables during the simultaneous assembly of multiple models and batch-produced satellites, reduces unnecessary waiting time for each model, and ensures the assembly process. 7. Enables satellites to adjust their altitude after being tilted to a horizontal position, providing accurate and operable support for the deployment and installation of solar panels or antennas for various types of satellites.

[0016] Other beneficial effects of the present invention will be explained in detail through the introduction of specific technical features and technical solutions in specific embodiments. Those skilled in the art should be able to understand the beneficial technical effects brought about by these technical features and technical solutions through the introduction of these technical features and technical solutions. Attached Figure Description

[0017] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 Front view of the satellite's electric lifting and adjusting device; Figure 2 This is a side view of the satellite's electric lifting and adjusting device.

[0018] Reference numerals in the attached drawings: 1. Two-axis turntable; 2. Fixed base; 3. Support frame; 4. Linear guide mechanism; 5. Slider; 6. Ball screw; 7. Nut seat; 8. Servo motor; 9. Reducer; 10. Coupling; 11. Bearing plate; 12. Bearing seat. Detailed Implementation

[0019] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0020] This invention provides a satellite electric lifting and adjusting device, referring to... Figure 1 and Figure 2As shown, the device adopts a three-layer structure: upper, middle, and lower. The lower layer is a rectangular frame structure, the middle layer is a movable connection structure, and the upper layer is a support plate 11. The specific structure includes: a fixed base 2, a support frame 3, a linear guide mechanism 4, an electric drive mechanism, a screw transmission mechanism, the support plate 11, and an electrical control system.

[0021] The rectangular frame structure is welded together from two rectangular tubes on the left and right sides and two baffles on the top and bottom. This rectangular frame structure serves as the support frame 3 of the device, responsible for bearing and installing the linear guide mechanism 4. A circular disc is welded to the bottom of the rectangular frame structure as a fixed base 2, used for connection and installation on the two-axis turntable 1.

[0022] The fixed base 2 has three different pitch circle sizes of mounting interfaces, namely three circles with 24 interfaces in total. 12 through holes, pitch circle dimensions are as follows: 1320 1224 and 1100 can be installed on two-axis turntables of different specifications.

[0023] The support frame 3 is fixed on the fixed base 2; More specifically, the support frame 3 is welded from two rectangular square tubes on the left and right sides and two baffles on the top and bottom, forming a rectangular frame structure. This support frame 3 is responsible for supporting and installing the various functional components. A circular disc is welded to the bottom of the support frame 3 as a fixed base 2, which is used to install and connect the entire device to the two-axis turntable 1. The support frame 3 and the fixed base 2 are welded from carbon structural steel, and undergo post-weld stress-relieving heat treatment and aging treatment after machining to ensure stable mechanical properties and good precision stability.

[0024] The linear guide mechanism 4 is mounted on the support frame 3 and includes a guide member extending in the lifting direction and a moving member that slides with it. Specifically, the linear guide mechanism 4 consists of two 1.5m long linear guide rails mounted on two rectangular tubes. These two rails are parallel and form the guide components of the linear guide mechanism 4, primarily serving a guiding function. Three sliders 5 are embedded in each linear guide rail. The sliders 5 cooperate with the linear guide rails to achieve relative sliding, and thus constitute the moving components of the linear guide mechanism 4. The six sliders 5 together form a single moving unit.

[0025] The electric drive mechanism includes a servo motor 8 and a reducer 9, with the reducer 9 and the servo motor 8 connected by a coupling 10; The screw drive mechanism includes a ball screw 6 and a nut seat 7 that is threadedly engaged with it. The ball screw 6 is connected to the output end of the reducer 9. The nut seat 7 constitutes the moving output end of the screw drive mechanism. Specifically, a servo motor 8 and a reducer 9 are installed on the top baffle of the support frame 3. The reducer 9 and the servo motor 8 are connected by a coupling 10. The lower output shaft of the reducer 9 is connected to a ball screw 6. The ball screw 6 is located in the gap between two rectangular tubes and is set parallel to two linear guides. One end of the ball screw 6 is fixed to the baffle above the support frame 3, and the other end is rotatably supported on the crossbar below the support frame 3 via a bearing seat 12. A nut seat 7 is fitted on the ball screw 6, and the nut seat 7 is threadedly engaged with the ball screw 6, forming the moving output end of the screw drive mechanism, which can move axially as the ball screw 6 rotates.

[0026] The reducer 9 is a worm gear reducer with a speed ratio of 1:32. Utilizing the reverse self-locking characteristic of the worm gear pair, it prevents the support plate 11 from sliding down and causing a safety accident when the servo motor 8 loses power. The servo motor 8 has a power of 4.5KW and a torque of 22Nm, and is equipped with a braking device that can brake the motor shaft in the event of power failure, thus providing protection.

[0027] The support plate 11 is used to directly or indirectly support the satellite. The support plate 11 is fixedly connected to the moving part of the linear guide mechanism 4 and the nut seat 7. Six M10 threaded holes are pre-drilled on the support plate 11, with pitch circle dimensions as follows: 1530 1224、 1000 850 630 and The 500 can be used to install satellites directly, or satellites with different interface sizes can be installed via an adapter plate.

[0028] Specifically, the top surfaces of the six sliders 5 and the top surface of the nut seat 7 form a coplanar body. A circular support plate 11 is mounted on this coplanar body, and the support plate 11 is fixedly connected to the six sliders 5 and the nut seat 7 respectively. The support plate 11 is fixed to the linear guide rail of the support frame 3 by the sliders 5, and can move directionally along the linear guide rail under the action of the nut seat 7. The support plate 11 is used to directly or indirectly support satellite products.

[0029] The bearing plate 11 is welded from No. 45 steel and undergoes post-weld tempering and machining followed by artificial aging treatment to effectively remove welding stress and improve mechanical properties, thus maintaining long-term stability of its precision.

[0030] The electrical control system, including the motor controller, touch screen, buttons and other matching electrical components, is all installed in a portable electrical control box and connected to the servo motor 8 via cables.

[0031] When the ball screw 6 rotates, the nut seat 7 converts the rotation angle of the screw into linear motion according to the lead, thereby driving the slider 5 to move along the linear guide.

[0032] The present invention also provides a method for adjusting the electric lift of a satellite, comprising: Step S1: Install the fixed base 2 onto the two-axis turntable 1; Step S2: Install the satellite onto the support plate 11; Step S3: Use the two-axis turntable 1 to flip the satellite from a vertical position to a horizontal position; Step S4: When the satellite is in a horizontal position, the servo motor 8 is started by the electrical control system. The servo motor 8 drives the ball screw 6 to rotate through the reducer 9 and coupling 10. Step S5: The ball screw 6 drives the nut seat 7 and the bearing plate 11 to move up and down along the linear guide mechanism 4, thereby adjusting the altitude position of the satellite in a horizontal state.

[0033] The specific working process is as follows: The servo motor 8 is started remotely via the electrical control system. The servo motor 8 drives the reducer 9 to rotate. The reducer 9 drives the ball screw 6 to rotate via the coupling 10. The ball screw 6 drives the nut seat 7 to reciprocate linearly along the screw axis. The nut seat 7 carries the support plate 11 and moves up and down along the linear guide rail. The satellite product installed on the support plate 11 moves up and down with the support plate 11, thereby realizing the height adjustment function.

[0034] This invention provides a satellite electric lifting and adjustment device and method. By controlling a precision ball screw with a servo motor on a two-axis turntable, precise adjustment and control of the satellite's lifting and lowering altitude can be achieved when the satellite is tilted to a horizontal position. This improves the overall satellite attitude accuracy, ensures assembly and installation quality, makes the adjustment operation more convenient and intelligent, saves assembly and adjustment time, and improves production efficiency. It also reduces the number of steps in the overall satellite assembly process, making the overall satellite assembly flow smoother and simpler.

[0035] Those skilled in the art will understand that, besides implementing the system and its various devices, modules, and units provided by this invention in the form of purely computer-readable program code, the same functions can be achieved entirely through logical programming of the method steps, making the system and its various devices, modules, and units of this invention function in the form of logic gates, switches, application-specific integrated circuits, programmable logic controllers, and embedded microcontrollers. Therefore, the system and its various devices, modules, and units provided by this invention can be considered as a hardware component, and the devices, modules, and units included therein for implementing various functions can also be considered as structures within the hardware component; alternatively, the devices, modules, and units for implementing various functions can be considered as both software modules implementing the method and structures within the hardware component.

[0036] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0037] The specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other as a satellite electric lifting and adjusting device.

Claims

1. A satellite electric lifting and adjusting device, characterized in that, include: Fixed base for mounting to a two-axis rotary table; The support frame is fixedly mounted on the fixed base; A linear guide mechanism, mounted on the support frame, includes a guide member extending along the lifting direction and a movable member that slides with it; The electric drive mechanism includes a servo motor and a reducer, with the reducer and servo motor connected by a coupling; A screw drive mechanism includes a ball screw and a nut seat that is threadedly engaged with it. The ball screw is connected to the output end of the reducer, and the nut seat constitutes the movable output end of the screw drive mechanism. A support plate is used to directly or indirectly support a satellite, and the support plate is fixedly connected to the moving part of the linear guide mechanism and the nut seat respectively; The servo motor drives the ball screw to rotate via the reducer, and the nut seat drives the bearing plate and the moving part to move up and down along the guide.

2. The satellite electric lifting and adjusting device according to claim 1, characterized in that, The support frame is a rectangular frame structure welded together from two rectangular square tubes on the left and right and two baffles on the top and bottom. The fixed base is a circular disc welded to the bottom of the support frame.

3. The satellite electric lifting and adjusting device according to claim 2, characterized in that, The linear guide mechanism includes two parallel linear guides fixedly mounted on two rectangular tubes. Each linear guide has multiple sliders slidably mounted on it, and the sliders constitute the moving part. The top surfaces of the multiple sliders are coplanar with the top surface of the nut seat, and together they support and fix the bearing plate.

4. The satellite electric lifting and adjusting device according to claim 2, characterized in that, The ball screw is located in the gap between two rectangular tubes and is set parallel to the linear guide rail; one end of the ball screw is installed on the upper baffle of the support frame, and the other end is installed on the lower baffle of the support frame through a bearing seat.

5. The satellite electric lifting and adjusting device according to claim 1, characterized in that, The reducer is a worm gear reducer with a reverse self-locking characteristic, used to prevent the support plate from sliding down when the servo motor loses power; the servo motor is equipped with a braking device to brake the motor shaft when power is lost.

6. The satellite electric lifting and adjusting device according to claim 1, characterized in that, The fixed base has three different pitch circle sizes of mounting interfaces, namely three circles with 24 interfaces in total. 12 through holes, pitch circle dimensions are as follows: 1320 1224 and 1100, used to adapt to two-axis rotary tables of different specifications; The bearing plate has six pre-drilled M10 threaded holes, with pitch circle dimensions as follows: 1530 1224 1000 850 630 and 500 is used for direct installation of satellites or installation of satellites with different interface sizes via an adapter plate.

7. The satellite electric lifting and adjusting device according to claim 1, characterized in that, The support frame and the fixed base are welded from carbon structural steel and undergo post-weld stress relief and post-processing aging treatment. The support plate is welded from carbon structural steel and undergoes post-weld heat treatment and artificial aging treatment after machining.

8. The satellite electric lifting and adjusting device according to claim 1, characterized in that, The device also includes an electrical control system; The electrical control system includes a motor controller, a touch screen, and buttons, and is installed in a portable mobile control box, connected to the servo motor via a cable.

9. A satellite electric lifting adjustment method, based on the satellite electric lifting adjustment device according to any one of claims 1-8, characterized in that, include: Step S1: Install the fixed base onto the two-axis turntable; Step S2: Install the satellite onto the support plate; Step S3: Use the two-axis turntable to flip the satellite from a vertical position to a horizontal position; Step S4: When the satellite is in a horizontal position, the servo motor is started by controlling the electrical control system. The servo motor drives the ball screw to rotate through the reducer and the coupling. Step S5: The ball screw drives the nut seat and the bearing plate to move up and down along the linear guide mechanism, thereby adjusting the altitude position of the satellite in a horizontal state.

10. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the computer program is executed by the processor, it implements the steps of the satellite electric lifting and lowering adjustment method according to claim 9.

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