A high dynamic response dual-axis tracking turntable

Abstract

The application discloses a high dynamic response double-shaft tracking turntable, and relates to the field of double-shaft tracking turntables.The high dynamic response double-shaft tracking turntable comprises a direction turntable, a support frame arranged on the top of the direction turntable, a pitching turntable rotationally connected with the support frame, and a pitching reference adjusting device arranged on the direction turntable.The pitching reference adjusting device comprises a guide rail plate vertically arranged on the direction turntable, a rotating frame arranged on the outer wall of the pitching turntable and penetrating through the guide rail plate, and a plurality of fixed-angle positioning components arranged in an annular array on the outer wall of the guide rail plate.The high dynamic response double-shaft tracking turntable further comprises a driving device arranged on the direction turntable and having an execution end penetrating through the support frame, and a rotation angle detection device arranged on the outer wall of the support frame and having a detection end penetrating through the support frame.The driving device is used for driving the rotating frame to rotate, and the rotation angle detection device is used for detecting the rotation angle of the rotating frame.The turntable in the application solves the problems of the traditional double-shaft turntable, such as the existence of a blind area in over-the-top tracking, dynamic response lag and insufficient angle positioning precision.

Description

Technical Field

[0001] This invention relates to the technical field of dual-axis tracking turntables, specifically a dual-axis tracking turntable with high dynamic response. Background Technology

[0002] With the rapid development of aerospace, remote sensing and mapping, and photoelectric tracking, the performance requirements for ground tracking equipment are increasing. As a platform carrying key equipment such as antennas and optical payloads, the dual-axis tracking turntable's role is to point to and track the target in real time during movement. In practical applications, the turntable needs to achieve fast and precise servo control in both azimuth and pitch degrees of freedom. Its dynamic response capability, tracking accuracy, and full-airspace coverage capability directly determine the overall system's mission performance.

[0003] Currently, most common dual-axis tracking turntables employ a motor-reducer transmission system, using gears or worm gears to transmit power. This type of structure commonly suffers from problems such as transmission backlash, mechanical wear, and changes in lubrication conditions during long-term operation, leading to sluggish response and decreased pointing accuracy. Furthermore, traditional turntables typically use a fixed reference point in their pitch axis design. When the tracked target moves to the zenith region, the azimuth axis will rotate violently or exceed tracking speed limits due to the mechanism's kinematic characteristics, creating a so-called "overhead blind zone." To circumvent this problem, some existing technologies employ software prediction or path planning, but these methods fundamentally fail to eliminate the blind zone from the mechanical structure and control mechanism perspectives. Moreover, they are prone to introducing additional errors under frequent overhead conditions, affecting tracking continuity and dynamic performance.

[0004] Therefore, how to address the problem of blind spot in over-the-top tracking by focusing on both mechanism design and control strategies, while eliminating transmission backlash and mechanical hysteresis, and ensuring high dynamic and high-precision continuous tracking across the entire airspace, has become a pressing technical issue in this field. Summary of the Invention

[0005] Therefore, the purpose of this invention is to provide a dual-axis tracking turntable with high dynamic response to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a dual-axis tracking turntable with high dynamic response, comprising a directional turntable, a support frame disposed on the top of the directional turntable, a pitch turntable rotatably connected to the support frame, and a pitch reference adjustment device disposed on the directional turntable. The pitch reference adjustment device includes a guide rail plate vertically disposed on the directional turntable, a rotating frame disposed on the outer wall of the pitch turntable and having one end penetrating through the guide rail plate, and a plurality of fixed-angle positioning components arranged in a ring array on the outer wall of the guide rail plate; it also includes a drive device disposed on the directional turntable and having its execution end penetrating through the support frame, and a rotation angle detection device disposed on the outer wall of the support frame and having its detection end penetrating through the support frame; the drive device is used to drive the rotating frame to rotate, and the rotation angle detection device is used to detect the rotation angle of the rotating frame.

[0007] Preferably, the guide rail plate has an arc-shaped through hole; the rotating frame has multiple through holes, and the outer wall of the rotating frame has guide posts, one end of which passes through the arc-shaped through hole. In this preferred embodiment, the cooperation between the arc-shaped through hole and the guide post provides precise rotation trajectory constraints for pitch reference adjustment; the through hole design effectively reduces the weight of the rotating frame and improves dynamic response capability.

[0008] Preferably, the fixed angle positioning component includes a drive cylinder disposed on the outer wall of the guide rail plate, and a limiting frame disposed on the telescopic end of the drive cylinder; the limiting frame includes an arc-shaped limiting section whose bottom is connected to the telescopic end of the drive cylinder, and two extended guide ends symmetrically disposed at both ends of the arc-shaped limiting section. In this preferred embodiment, the drive cylinder drives the limiting frame to achieve active locking and unlocking, the arc-shaped limiting section forms a reliable surface contact positioning with the guide post, and the extended guide ends provide a wide range of entry guidance for the guide post, improving the fault tolerance and smoothness of the positioning process.

[0009] Preferably, it further includes an elastic buffer component, which comprises a buffer layer disposed on the outer wall of the extended guide end. In this preferred embodiment, the elastic buffer component absorbs energy and reduces speed when the guide post enters the limiting frame, thus avoiding rigid impact.

[0010] Preferably, the device further includes a contact feedback component, which includes a first pressure sensor embedded in the arc-shaped limiting segment. In this preferred embodiment, the first pressure sensor provides real-time feedback on the contact pressure between the guide post and the limiting frame, achieving closed-loop control of the locking state, ensuring locking reliability, and preventing over-pressure or under-pressure locking.

[0011] Preferably, the driving device includes a gear wall disposed on the outer wall of the rotating frame, a first motor disposed on the direction turntable with its actuating end penetrating the support frame, and a first drive wheel disposed on the actuating end of the first motor and meshing with the gear wall. In this preferred embodiment, the meshing transmission structure of the gear wall and the first drive wheel achieves high-precision and high-response active adjustment of the reference angles of the rotating frame and the pitch turntable.

[0012] Preferably, the device further includes a torque detection component, which comprises a locking shaft disposed at the actuating end of the first motor, a second pressure sensor disposed at the top of the locking shaft, and two limiting blocks symmetrically disposed at the top of the locking shaft and lower than the height of the second pressure sensor; it also includes a sleeve passing through the support frame, one end of the sleeve being connected to the first drive wheel and the other end being fitted with a locking groove; the locking shaft extends into the locking groove, and the top of the second pressure sensor is connected to the top of the inner wall of the locking groove. In this preferred embodiment, the cooperation of the locking shaft, the second pressure sensor, and the locking groove enables accurate detection of the output torque of the first motor, and the limiting blocks prevent sensor overload.

[0013] Preferably, the rotation angle detection device includes an encoder disposed on the outer wall of the support frame with its detection end penetrating the support frame, and a second drive wheel disposed at the input end of the encoder and meshing with the gear wall. In this preferred embodiment, the encoder achieves follow-up detection of the angle with the rotating frame through the meshing of the second drive wheel with the gear wall.

[0014] Preferably, the device further includes a temperature control component, which comprises an insulation tube disposed on the outer wall of the support frame and sleeved around the encoder, and a heating element, a cooling element, and a temperature sensor disposed within the insulation tube. In this preferred embodiment, the encoder is actively temperature compensated by the insulation tube and the internal temperature control element, effectively suppressing measurement drift caused by changes in ambient temperature and ensuring consistent angle detection in high-dynamic tracking scenarios.

[0015] Preferably, the steering turntable includes a fixed platform, a steering disk rotatably connected to the top of the fixed platform at its bottom, and a second motor disposed within the fixed platform and connected to the steering disk at its actuating end. The steering disk is provided with a support frame, a guide rail plate, and a driving device. The pitch turntable includes a U-shaped frame rotatably connected to the support frame, a third motor disposed on the outer wall of the U-shaped frame and whose actuating end passes through the U-shaped frame, and a support frame disposed on the actuating end of the third motor. The rotating frame is fixedly disposed on the outer wall of the U-shaped frame. In this preferred embodiment, both the second motor and the third motor use a direct drive method to drive the steering disk and the support frame respectively, eliminating the backlash and lag of traditional transmission links and realizing high dynamic response of dual axes.

[0016] In summary, the present invention has the following main beneficial effects:

[0017] The dual-axis tracking turntable in this invention aims to solve the problems of blind spots, lag in dynamic response, and insufficient angle positioning accuracy in traditional dual-axis turntables for overhead tracking. The turntable adopts a dual-axis direct-drive architecture, with the directional and pitch turntables directly driven by a second and a third motor, respectively. This eliminates transmission backlash and mechanical lag at the hardware level, laying a solid foundation for achieving high dynamic response.

[0018] In terms of the core control mechanism, this invention effectively eliminates the overhead blind zone by setting up an independent pitch reference adjustment device in conjunction with overhead avoidance logic. When the target approaches the zenith, the drive device drives the rotating frame and pitch turntable to actively rotate to a preset angle, transforming the target in the zenith area into a horizontal target, which is then tracked by the pitch turntable. The entire process eliminates gaps through a torque detection component, provides real-time angle feedback from the encoder, and avoids rigid impacts when the guide column enters the next locking position through an elastic buffer component. Each fixed angle positioning component corresponds to a precisely set angle, and absolute angle correction is completed simultaneously with locking, effectively compensating for errors accumulated by the encoder due to gaps or temperature drift. In addition, the encoder is equipped with a temperature control component, which maintains a constant temperature working environment through insulation pipes and heating and cooling elements, further ensuring the long-term stability of angle detection. Attached Figure Description

[0019] Figure 1 This is an isometric view of the dual-axis tracking turntable structure of the present invention;

[0020] Figure 2 This is an exploded view of the dual-axis tracking turntable structure of the present invention;

[0021] Figure 3 This is an exploded view of the orientation turntable and pitch turntable structure of the present invention;

[0022] Figure 4 This is an exploded view of the drive device and rotation angle detection device of the present invention;

[0023] Figure 5 This is an exploded view of the pitch reference adjustment device of the present invention;

[0024] Figure 6 For the present invention Figure 5 Enlarged view of the structure at point A in the middle;

[0025] Figure 7 This is a top view of the dual-axis tracking turntable structure of the present invention;

[0026] Figure 8 This is a cross-sectional view of the dual-axis tracking turntable structure of the present invention.

[0027] Figure Descriptions: 10. Steering turntable; 101. Fixed platform; 102. Steering dial; 103. Second motor; 11. Support frame; 12. Pitch turntable; 121. U-shaped frame; 122. Third motor; 123. Bearing frame; 20. Pitch reference adjustment device; 21. Guide rail plate; 211. Arc-shaped through hole; 22. Rotating frame; 221. Through hole; 222. Guide column; 23. Fixed angle positioning component; 231. Drive cylinder; 232. Limiting frame; 2321. Arc-shaped limiting section; 2322. Extension guide end; 24. Elastic buffer component; 241, buffer layer; 25, contact feedback component; 251, first pressure sensor; 30, drive device; 31, gear wall; 32, first motor; 33, first drive wheel; 34, torque detection component; 341, locking block shaft; 342, second pressure sensor; 343, limit block; 344, sleeve; 345, slot; 40, rotation angle detection device; 41, encoder; 42, second drive wheel; 43, temperature control component; 431, insulation pipe; 432, heating element; 433, cooling element. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0029] The embodiments of the present invention will now be described.

[0030] Please refer to the appendix for details. Figure 1 , 2 As shown in Figures 3, 7, and 8, in a preferred embodiment of the present invention, a dual-axis tracking turntable with high dynamic response includes a directional turntable 10, a support frame 11 disposed on the top of the directional turntable 10, a pitch turntable 12 rotatably connected to the support frame 11, and a pitch reference adjustment device 20 disposed on the directional turntable 10. The directional turntable 10 includes a fixed platform 101, a directional turntable 102 rotatably connected to the top of the fixed platform 101 at its bottom, and a directional turntable 102 disposed within the fixed platform 101. The second motor 103 is connected to the steering wheel 102 at the execution end. The steering wheel 102 is provided with a support frame 11, a guide rail plate 21 and a drive device 30. The pitch turntable 12 includes a U-shaped frame 121 rotatably connected to the support frame 11, a third motor 122 disposed on the outer wall of the U-shaped frame 121 and with its execution end passing through the U-shaped frame 121, and a bearing frame 123 disposed on the execution end of the third motor 122. The rotating frame 22 is fixedly disposed on the outer wall of the U-shaped frame 121.

[0031] It should be noted that, in this embodiment, in order to avoid the blind spot above the top, the dual-axis tracking turntable of the present invention can realize both conventional tracking and over-the-top avoidance tracking;

[0032] In the normal tracking mode, the pitch reference adjustment device 20 is locked, and the guide column 222 in the pitch reference adjustment device 20 is limited by the fixed angle positioning component 23 at the corresponding position to ensure that the reference of the pitch turntable 12 is kept at the preset zero degree position. The first motor 32 of the drive device 30 is in standby mode, and the pitch turntable 12 is driven by the third motor 122 to perform normal pitch movement.

[0033] In the over-the-sky avoidance tracking mode, when the tracked target approaches the zenith (i.e., the pitch angle is ≥85°), the controller determines that it has entered the over-the-sky avoidance mode and executes the following steps:

[0034] Step 1: Clear the gap. The controller triggers the first motor 32 until the torque information measured by the torque detection component 34 reaches the set value.

[0035] Step 2: Unlock. The drive cylinder 231 in the fixed-angle positioning component 23, corresponding to the current position of the guide post 222, retracts.

[0036] Step 3: Rotate to the set angle. The controller controls the first motor 32 to start, which drives the rotating frame 22 and the pitch turntable 12 to rotate toward the target angle through the first drive wheel 33 and the gear wall 31. During this process, the controller receives the rotation angle information measured by the rotation angle detection device 40 in real time.

[0037] Step 4: Buffering and introduction. When the rotation angle information reaches the set range, the controller triggers the drive cylinder 231 of the fixed angle positioning component 23 at the corresponding position to extend, and at the same time reduces the power of the first motor 32 to reduce speed. At this time, the guide post 222 is located between the two extended introduction ends 2322. The guide post 222 contacts and impacts the buffer layer 241, and the speed of the guide post 222 drops sharply.

[0038] Step 5: Locking and contact confirmation. The actuator of the drive cylinder 231 continues to extend, and the arc-shaped limit segment 2321 locks the guide post 222 until the controller receives the pressure information measured by the first pressure sensor 251, at which point the drive cylinder 231 stops moving.

[0039] After the pitch reference is locked at the set angle, the target in the original zenith area is transformed into a horizontal target. The third motor 122 drives the support frame 123 to perform conventional pitch tracking, while the direction turntable 10 continues to adjust the direction, thereby achieving continuous tracking in the entire airspace and realizing high dynamic response tracking.

[0040] When the pitch reference changes, the controller calculates the reference offset angle required for the rotation of the rotating frame 22 based on the geometric relationship between the current target azimuth and the zenith direction. This offset angle ranges from 0° to 90°, and its setting principle is to map the original zenith direction target vector to the new effective tracking range of the pitch turntable 12 through coordinate system rotation transformation. Specifically, the controller calculates the new pitch angle command after the target rotates relative to the rotating frame 22 based on the target's position in the current geographic coordinate system and the current azimuth of the directional turntable 10, and assigns it to the third motor 122; simultaneously, it assigns the rate of change of the target's azimuth relative to the new reference plane to the second motor 103. Thus, after the rotating frame 22 completes the reference rotation and locks, the directional turntable 10 and the pitch turntable 12 collaboratively perform routine tracking tasks in the new reference coordinate system, ensuring continuous and stable tracking of targets in the zenith area.

[0041] Once the target leaves the zenith area, the controller retracts the drive cylinder 231 of the corresponding fixed-angle positioning component 23, releasing the locking state. Subsequently, the first motor 32 reverses its direction, returning the rotating frame 22 and the pitch turntable 12 to the zero-degree position and locking them to the corresponding fixed-angle positioning component 23, thus restoring the normal tracking mode.

[0042] Since the angle of each fixed-angle positioning component 23 is a set value, each positioning is also an angle correction, which effectively reduces the error of encoder 41 caused by gear backlash or temperature drift.

[0043] Furthermore, when the steering turntable 10 and the pitch turntable 12 are working, the second motor 103 directly drives the steering turntable 102, and the actuator of the third motor 122 directly drives the support frame 123. The support frame 123 is used to bear the load. The direct drive of the motor can realize high dynamic response during rotation adjustment.

[0044] Please refer to the appendix for details. Figure 2 , 5As shown in Figures 6 and 7, in another preferred embodiment of the present invention, the pitch reference adjustment device 20 includes a guide rail plate 21 vertically mounted on the direction turntable 10, a rotating frame 22 mounted on the outer wall of the pitch turntable 12 and having one end penetrating through the guide rail plate 21, and a plurality of fixed angle positioning components 23 arranged in a circular array on the outer wall of the guide rail plate 21; the guide rail plate 21 is provided with an arc-shaped through hole 211; the rotating frame 22 is provided with a plurality of through holes 221, and the outer wall of the rotating frame 22 is provided with a guide post 222, one end of which penetrates through the arc-shaped through hole 211; the fixed angle positioning components 23... The system includes a drive cylinder 231 disposed on the outer wall of the guide rail plate 21, and a limiting frame 232 disposed on the telescopic end of the drive cylinder 231. The limiting frame 232 includes an arc-shaped limiting section 2321 with its bottom connected to the telescopic end of the drive cylinder 231, and two extended guide ends 2322 symmetrically disposed at both ends of the arc-shaped limiting section 2321. The system also includes an elastic buffer component 24, which includes a buffer layer 241 disposed on the outer wall of the extended guide ends 2322. The system also includes a contact feedback component 25, which includes a first pressure sensor 251 embedded in the arc-shaped limiting section 2321.

[0045] It should be noted that, in this embodiment, when the pitch reference adjustment device 20 is working, the guide post 222 slides in the arc-shaped through hole 211, and the through hole 221 can effectively reduce the weight of the rotating frame 22.

[0046] Furthermore, when the fixed angle positioning component 23 is working, the actuator of the drive cylinder 231 drives the limit frame 232 to move. The buffer layer 241 can be composed of an arched metal sheet fixed to the outer wall of the extension inlet end 2322 and a rubber pad fixed to the outer wall of the arched metal sheet to achieve a buffering effect.

[0047] Please refer to the appendix for details. Figure 2 , 3As shown in Figure 4, in another preferred embodiment of the present invention, a drive device 30 is further included on the direction turntable 10 with its execution end penetrating through the support frame 11, and a rotation angle detection device 40 is provided on the outer wall of the support frame 11 with its detection end penetrating through the support frame 11; the drive device 30 is used to drive the rotating frame 22 to rotate, and the rotation angle detection device 40 is used to detect the rotation angle of the rotating frame 22. The drive device 30 includes a gear wall 31 provided on the outer wall of the rotating frame 22, a first motor 32 provided on the direction turntable 10 with its execution end penetrating through the support frame 11, and a first drive wheel 33 provided on the execution end of the first motor 32 and meshing with the gear wall 31. It also includes a torque detection component 34, which includes a locking shaft 341 provided on the execution end of the first motor 32, and a second pressure sensor 342 provided on the top of the locking shaft 341, symmetrically arranged... The device includes two limiting blocks 343 at the top of the locking shaft 341 and at a height lower than the second pressure sensor 342; it also includes a sleeve 344 passing through the support frame 11, one end of which is connected to the first drive wheel 33 and the other end is embedded in a slot 345; the locking shaft 341 extends into the slot 345, the top of the second pressure sensor 342 is connected to the top of the inner wall of the slot 345, the rotation angle detection device 40 includes an encoder 41 disposed on the outer wall of the support frame 11 and the detection end of which passes through the support frame 11, and a second drive wheel 42 disposed at the input end of the encoder 41 and meshing with the gear wall 31, and also includes a temperature control component 43, the temperature control component 43 including a heat insulation tube 431 disposed on the outer wall of the support frame 11 and sleeved outside the encoder 41, a heating element 432, a cooling element 433 and a temperature sensor disposed inside the heat insulation tube 431.

[0048] It should be noted that, in this embodiment, when the drive device 30 is working, the first motor 32 can drive the first drive wheel 33 to rotate, and the first drive wheel 33 drives the rotating frame 22 to rotate through the gear wall 31.

[0049] Furthermore, the actuator of the first motor 32 directly drives the locking block shaft 341 to rotate, and the locking block shaft 341 applies force to the second pressure sensor 342. The second pressure sensor 342 drives the sleeve 344 to rotate through the locking groove 345. In order to prevent the second pressure sensor 342 from being over-deformed, the limiting block 343 can contact the locking groove 345 after the second pressure sensor 342 is deformed and drive the sleeve 344 to rotate through the locking groove 345.

[0050] The controller receives the pressure information measured by the second pressure sensor 342 and obtains the torque information after analysis.

[0051] Furthermore, when the rotating frame 22 rotates, it drives the detection end of the encoder 41 to rotate through the second drive wheel 42, and the encoder 41 transmits the measured angle information to the controller;

[0052] When the encoder 41 is working, the controller receives the temperature information measured by the temperature sensor inside the insulation tube 431, and after analysis, triggers the heating element 432 or the cooling element 433 until the temperature information reaches the set value, so as to reduce the impact of temperature on the operation of the encoder 41.

[0053] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the invention and are not intended to limit it. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the invention, but such modifications, substitutions, and variations are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A dual-axis tracking turntable with high dynamic response, comprising a directional turntable (10), a support frame (11) disposed on the top of the directional turntable (10), a pitch turntable (12) rotatably connected to the support frame (11), and a pitch reference adjustment device (20) disposed on the directional turntable (10), characterized in that, The pitch reference adjustment device (20) includes a guide rail plate (21) vertically mounted on the direction turntable (10), a rotating frame (22) mounted on the outer wall of the pitch turntable (12) and having one end passing through the guide rail plate (21), and a plurality of fixed angle positioning components (23) arranged in a ring array on the outer wall of the guide rail plate (21). It also includes a drive device (30) disposed on the direction turntable (10) and whose execution end passes through the support frame (11), and a rotation angle detection device (40) disposed on the outer wall of the support frame (11) and whose detection end passes through the support frame (11). The driving device (30) is used to drive the rotating frame (22) to rotate, and the rotation angle detection device (40) is used to detect the rotation angle of the rotating frame (22).

2. The dual-axis tracking turntable with high dynamic response according to claim 1, characterized in that, The guide plate (21) is provided with an arc-shaped through hole (211). The rotating frame (22) is provided with multiple through holes (221), and the outer wall of the rotating frame (22) is provided with guide posts (222), one end of the guide posts (222) passing through the arc-shaped through hole (211).

3. A dual-axis tracking turntable with high dynamic response according to claim 1, characterized in that, The fixed angle positioning component (23) includes a drive cylinder (231) disposed on the outer wall of the guide rail plate (21) and a limiting frame (232) disposed on the telescopic end of the drive cylinder (231). The limiting frame (232) includes an arc-shaped limiting section (2321) with its bottom connected to the telescopic end of the drive cylinder (231), and two extended inlet ends (2322) symmetrically located at both ends of the arc-shaped limiting section (2321).

4. A dual-axis tracking turntable with high dynamic response according to claim 3, characterized in that, It also includes an elastic buffer component (24), which includes a buffer layer (241) disposed on the outer wall of the extended inlet end (2322).

5. A dual-axis tracking turntable with high dynamic response according to claim 3, characterized in that, It also includes a contact feedback component (25), which includes a first pressure sensor (251) embedded in the arc-shaped limiting segment (2321).

6. A dual-axis tracking turntable with high dynamic response according to claim 1, characterized in that, The drive device (30) includes a gear wall (31) disposed on the outer wall of the rotating frame (22), a first motor (32) disposed on the direction turntable (10) and whose execution end passes through the support frame (11), and a first drive wheel (33) disposed on the execution end of the first motor (32) and meshing with the gear wall (31).

7. A dual-axis tracking turntable with high dynamic response according to claim 6, characterized in that, It also includes a torque detection component (34), which includes a clamping shaft (341) located at the actuation end of the first motor (32), a second pressure sensor (342) located at the top of the clamping shaft (341), and two limiting blocks (343) symmetrically located at the top of the clamping shaft (341) and lower in height than the second pressure sensor (342). It also includes a sleeve (344) that passes through the support frame (11), one end of the sleeve (344) is connected to the first drive wheel (33), and the other end is provided with a slot (345). The card block shaft (341) extends into the card slot (345), and the top of the second pressure sensor (342) is connected to the top of the inner wall of the card slot (345).

8. A dual-axis tracking turntable with high dynamic response according to claim 6, characterized in that, The rotation angle detection device (40) includes an encoder (41) disposed on the outer wall of the support frame (11) and having its detection end penetrating through the support frame (11), and a second drive wheel (42) disposed at the input end of the encoder (41) and meshing with the gear wall (31).

9. A dual-axis tracking turntable with high dynamic response according to claim 8, characterized in that, It also includes a temperature control component (43), which includes a heat insulation tube (431) disposed on the outer wall of the support frame (11) and sleeved on the outside of the encoder (41), a heating element (432), a cooling element (433) disposed in the heat insulation tube (431), and a temperature sensor.

10. A dual-axis tracking turntable with high dynamic response according to claim 1, characterized in that, The steering turntable (10) includes a fixed platform (101), a steering turntable (102) rotatably connected to the top of the fixed platform (101) at its bottom, and a second motor (103) located inside the fixed platform (101) and connected to the steering turntable (102) at its execution end. The steering turntable (102) is provided with a support frame (11), a guide rail plate (21), and a drive device (30). The pitch turntable (12) includes a U-shaped frame (121) rotatably connected to the support frame (11), a third motor (122) disposed on the outer wall of the U-shaped frame (121) and having its execution end passing through the U-shaped frame (121), and a bearing frame (123) disposed on the execution end of the third motor (122). The rotating frame (22) is fixedly disposed on the outer wall of the U-shaped frame (121).

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