A radar antenna flip mechanism and its control system

Abstract

The present invention provides a radar antenna flipping mechanism and its control system, relating to the field of radar control technology. The radar antenna flipping mechanism comprises a main pole, with mounting blocks fixedly connected at both ends of the main pole. A first servo motor is fixedly connected to the rear end of the left mounting block, and a second servo motor is fixedly connected to the rear end of the right mounting block. The driving end of the first servo motor passes through the corresponding mounting block and is fixedly connected to a first drive gear. The driving end of the second servo motor passes through the corresponding mounting block and is fixedly connected to a second drive gear. A reinforcing rod is fixedly connected to the front side of the main pole. After a tension sensor detects different tensions, the winding roller stops tightening the steel cable. The tension of the steel cable can partially offset the gravity generated by the radar antenna, reducing damage to the mechanical structure caused by the heavier radar antenna during flipping and increasing the service life of the flipping device.

Description

Technical Field

[0001] The present invention relates to the field of radar control technology, and in particular to a radar antenna flipping mechanism and a control system thereof. Background Art

[0002] Radar antennas play a significant role in economic development, military, and life. In order to meet various requirements, radar antennas need to change their receiving angles according to the environment and technical requirements so that they can work smoothly. Therefore, the accuracy and stability of the automatic angle adjustment during movement must be guaranteed to achieve the required requirements.

[0003] In the existing technology, the flipping mechanism of the radar antenna is generally driven by multiple gears in conjunction with a telescopic mechanism. It has a complex structure and high requirements for the control system. In addition, due to the gravity of the radar antenna itself, the structure bears a large load during the flipping process, the maintenance frequency is high, the flipping structure wears more severely, and the service life is short. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the present invention provides a radar antenna flip mechanism and a control system thereof, which solve the problems of the complicated structure and short service life of the flip mechanism of the radar antenna in the prior art.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a radar antenna flipping mechanism, comprising a main pole, both ends of the main pole are fixedly connected to mounting blocks, the rear end of the left mounting block is fixedly connected to a first servo motor, and the rear end of the right mounting block is fixedly connected to a second servo motor, the driving end of the first servo motor passes through the corresponding mounting block and is fixedly connected to a first driving gear, the driving end of the second servo motor passes through the corresponding mounting block and is fixedly connected to the second driving gear, the front side of the main pole is fixedly connected to a reinforcing rod, the front end of the reinforcing rod is fixedly connected to an adjusting block, the left end of the adjusting block is rotatably connected to the second transmission rod, the right end of the adjusting block is rotatably connected to the first transmission rod, the second transmission rod is fixedly connected to a connecting block at an end opposite to the front side of the first transmission rod, one side of the second transmission rod is rotatably connected to the first transmission gear, and one side of the first transmission rod is rotatably connected to the second transmission gear.

[0006] Preferably, a connecting frame is rotatably connected to the internal through hole of the connecting block, one end of the connecting frame is fixedly connected to a bevel gear, the other end of the connecting frame is fixedly connected to the antenna body, the middle part of the connecting frame is fixedly connected to a stabilizing frame, and the outer end of the stabilizing frame is fixedly connected to the outer wall of the antenna body.

[0007] Preferably, the right side of the first drive gear is meshed and connected to the outside of the first transmission gear, the left side of the second drive gear is meshed and connected to the outside of the second transmission gear, and the opposite sides of the first transmission gear and the second transmission gear are respectively meshed and connected to both sides of the bevel gear.

[0008] Preferably, the bottom end of the mounting block is fixedly connected to a winding box, a winding slot is provided inside the winding box, a stepper motor is fixedly connected to one side of the inner wall of the winding box, a driving end of the stepper motor is fixedly connected to a rotating rod, a winding roller is fixedly connected to the middle part of the rod body of the rotating rod, a steel cable is installed inside the winding roller, an outer end of the rotating rod is rotatably connected to the inner wall of the winding box, a guide rod is fixedly connected to the rear side of the main rod, and a guide wheel is rotatably connected to the rear end of the guide rod.

[0009] Preferably, the rear end of the first transmission rod passes through the right end of the adjusting block and is rotatably connected to the inner wall of the adjusting block. The rod body of the first transmission rod is fixedly connected to the interior of the corresponding adjusting block with a half gear. A slide groove is provided inside the adjusting block. The interior of the slide groove is slidably connected to a tooth plate. The top of the tooth plate is rotatably connected to a top wheel. The front end of the tooth plate is meshed and connected to one side of the half gear.

[0010] Preferably, the top end of the connecting block is fixedly connected to a connecting plate, the rear end of the connecting plate is fixedly connected to a tension sensor, and the rear end of the tension sensor is fixedly connected to the end of the steel cable.

[0011] Preferably, a control system for a radar antenna flipping mechanism includes a main control unit, which includes an angle sensor, a pitch angle controller, a direction angle controller, a storage power supply, and a central processing unit. The output ends of the angle sensor, pitch angle controller, and direction angle controller are all connected to the input end of the central processing unit.

[0012] Preferably, the output end of the central processing unit is connected to the input end of the external driving device, and the energy storage power supply is used to supply power to the electrical equipment of the entire device.

[0013] Working principle: When the radar antenna flips its pitch angle, the first servo motor and the second servo motor rotate in opposite directions to drive the first drive gear and the second drive gear to rotate in corresponding directions, thereby driving the first transmission gear and the second transmission gear to rotate in the same direction. Since the bevel gear is meshed and connected between the first transmission gear and the second transmission gear, the bevel gear body will not rotate, thereby driving the first transmission rod and the second transmission rod to rotate, and finally driving the radar antenna to flip its pitch angle through the connecting frame. When the radar antenna flips its direction angle, the first servo motor and the second servo motor rotate in the same direction to drive the first drive gear and the second drive gear to rotate in corresponding directions, thereby driving the first transmission gear and the second transmission gear to rotate in opposite directions. The bevel gear itself will rotate, and finally driving the radar antenna to flip its direction angle through the connecting frame. When the radar antenna is adjusting its pitch angle, the winding roller is driven to rotate by the stepping motor. When the radar antenna flips upward, the steel cable is reeled in by the reel-up roller. After the radar antenna flips to the upper position, the reel-up roller continues to reel in and tighten the steel cable, and the tension of the steel cable is detected by the tension sensor. When the radar antenna flips downward, the reel-up roller pays out the steel cable, and at the same time drives the gear plate upward through the half gear, and lifts the steel cable through the top wheel to prevent the steel cable from touching other structures due to excessive deflection angle. After the radar antenna flips to the lower position, the reel-up roller continues to reel in and tighten the steel cable, and the tension of the steel cable is detected by the tension sensor. Since the radar antenna will generate different mechanical forces acting on the adjustment mechanism due to its own gravity when flipping up and down, the reel-up roller stops tightening the steel cable after detecting the different tensions. The gravity generated by the radar antenna can be partially offset by the tension of the steel cable, which can reduce the damage to the mechanical structure caused by the heavier radar antenna when flipping, and improve the service life of the flipping device.

[0014] The present invention provides a radar antenna flip mechanism and its control system, which has the following beneficial effects:

[0015] 1. The present invention stops the winding roller from tightening the steel cable after detecting different tensions through the tension sensor. The gravity generated by the radar antenna can be partially offset by the tension of the steel cable, which can reduce the damage to the mechanical structure caused by the heavy radar antenna when flipping, and improve the service life of the flipping device.

[0016] 2. The present invention can realize the pitch and azimuth flip adjustment of the radar antenna by controlling the relative rotation direction of the first servo motor and the second servo motor, and can accurately control the flip angle through the angle sensor. The control system is simple and easy to operate, with a compact and stable structure and high reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the internal structure of the winding box of the present invention;

[0019] Figure 3 This is a schematic diagram of the inverted three-dimensional structure of the present invention;

[0020] Figure 4 It is a schematic structural diagram of the winding roller of the present invention;

[0021] Figure 5 This is a schematic diagram of the internal structure of the adjustment block of the present invention;

[0022] Figure 6 is a schematic diagram of a first transmission rod of the present invention;

[0023] Figure 7 This is a block diagram of the control system of the present invention.

[0024] Among them, 1. Main rod; 2. First servo motor; 3. Second servo motor; 4. First drive gear; 5. First transmission gear; 6. Tension sensor; 7. Mounting block; 8. Second drive gear; 9. First transmission rod; 10. Second transmission gear; 11. Connecting frame; 12. Antenna body; 13. Stabilizing frame; 14. Bevel gear; 15. Winding box; 16. Stepping motor; 17. Winding slot; 18. Winding roller; 19. Turning rod; 20. Connecting block; 21. Guide wheel; 22. Connecting plate; 23. Second transmission rod; 24. Half gear; 25. Adjusting block; 26. Tooth plate; 27. Top wheel; 28. Slide groove; 29. ​​Steel cable; 30. Reinforcement rod; 31. Guide rod. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Example:

[0027] like Figure 1-6As shown, an embodiment of the present invention provides a radar antenna flipping mechanism, including a main pole 1, both ends of the main pole 1 are fixedly connected to mounting blocks 7, the rear end of the left mounting block 7 is fixedly connected to a first servo motor 2, and the rear end of the right mounting block 7 is fixedly connected to a second servo motor 3, the driving end of the first servo motor 2 passes through the corresponding mounting block 7 and is fixedly connected to a first driving gear 4, the driving end of the second servo motor 3 passes through the corresponding mounting block 7 and is fixedly connected to a second driving gear 8, the front side of the main pole 1 is fixedly connected to a reinforcing rod 30, the front end of the reinforcing rod 30 is fixedly connected to an adjusting block 25, the left end of the adjusting block 25 is rotatably connected to the second transmission rod 23, the right end of the adjusting block 25 is rotatably connected to the first transmission rod 9, the second transmission rod 23 is fixedly connected to a connecting block 20 at one end opposite to the front side of the first transmission rod 9, one side of the second transmission rod 23 is rotatably connected to the first transmission gear 5, and one side of the first transmission rod 9 is rotatably connected to the second transmission gear 10.

[0028] A connecting frame 11 is rotatably connected to the internal through hole of the connecting block 20, one end of the connecting frame 11 is fixedly connected to a bevel gear 14, the other end of the connecting frame 11 is fixedly connected to the antenna body 12, the middle part of the connecting frame 11 is fixedly connected to a stabilizing frame 13, and one outer end of the stabilizing frame 13 is fixedly connected to the outer wall of the antenna body 12, so that the structural strength and installation stability of the antenna body 12 are improved by the stabilizing frame 13.

[0029] The right side of the first drive gear 4 is meshed and connected to the outside of the first transmission gear 5, and the left side of the second drive gear 8 is meshed and connected to the outside of the second transmission gear 10. The opposite sides of the first transmission gear 5 and the second transmission gear 10 are respectively meshed and connected to the two sides of the bevel gear 14. When the radar antenna is pitched, the first servo motor 2 and the second servo motor 3 rotate in opposite directions to drive the first drive gear 4 and the second drive gear 8 to rotate in the corresponding direction, thereby driving the first transmission gear 5 and the second transmission gear 10 to rotate in the same direction. Since the bevel gear 14 is meshed and connected to the first transmission gear 5 Between the bevel gear 14 and the second transmission gear 10, the bevel gear 14 body will not rotate, and can drive the first transmission rod 9 and the second transmission rod 23 to rotate, and finally drive the radar antenna to achieve the flip of the pitch angle through the connecting frame 11. When the radar antenna flips the direction angle, the first servo motor 2 and the second servo motor 3 rotate in the same direction, driving the first drive gear 4 and the second drive gear 8 to rotate in the corresponding direction, thereby driving the first transmission gear 5 and the second transmission gear 10 to rotate in the opposite direction. The bevel gear 14 itself will rotate, and finally drive the radar antenna to achieve the flip of the direction angle through the connecting frame 11.

[0030] The bottom end of the mounting block 7 is fixedly connected to a winding box 15, and a winding groove 17 is provided inside the winding box 15. A stepping motor 16 is fixedly connected to one side of the inner wall of the winding box 15, and the driving end of the stepping motor 16 is fixedly connected to a rotating rod 19. The middle part of the rod body of the rotating rod 19 is fixedly connected to a winding roller 18, and a steel cable 29 is installed inside the winding roller 18. The outer end of the rotating rod 19 is rotatably connected to the inner wall of the winding box 15, and the rear side of the main rod 1 is fixedly connected to a guide rod 31, and the rear end of the guide rod 31 is rotatably connected to a guide wheel 21. By arranging the guide rod 31 and the guide wheel 21, the movement trajectory of the steel cable 29 can be limited to prevent the steel cable 29 from deviating.

[0031] The rear end of the first transmission rod 9 passes through the right end of the adjusting block 25 and is rotatably connected to the inner wall of the adjusting block 25. The rod body of the first transmission rod 9 is fixedly connected to the interior of the adjusting block 25 with a half gear 24. A slide groove 28 is provided inside the adjusting block 25. The interior of the slide groove 28 is slidably connected to a tooth plate 26. The top of the tooth plate 26 is rotatably connected to a top wheel 27. The front end of the tooth plate 26 is meshed and connected to one side of the half gear 24.

[0032] The top of the connecting block 20 is fixedly connected to a connecting plate 22, and the rear end of the connecting plate 22 is fixedly connected to a tension sensor 6. The rear end of the tension sensor 6 is fixedly connected to the end of the steel cable 29. When the radar antenna is performing pitch angle flip adjustment, the winding roller 18 is driven to rotate by the stepping motor 16. When the radar antenna flips upward, the steel cable 29 is reeled in by the winding roller 18. After the radar antenna flips to the upper position, the winding roller 18 continues to reel in the steel cable 29 to tighten it. The tension of the steel cable 29 is detected by the tension sensor 6. When the radar antenna flips downward, the winding roller 18 pays off the steel cable 29 and drives the tooth plate 26 upward through the half gear 24. The steel cable 29 is lifted up by the top wheel 27 to prevent the steel cable 29 from touching other structures due to excessive deflection angle. After the radar antenna is flipped to the lower position, the winding roller 18 continues to wind up and tighten the steel cable 29. The tension of the steel cable 29 is detected by the tension sensor 6. Since the radar antenna will generate different mechanical forces acting on the adjustment mechanism due to its own gravity when flipping up and down, the tension of the steel cable 29 by the winding roller 18 is stopped after the tension sensor 6 detects the different tensions. The tension of the steel cable 29 can partially offset the gravity generated by the radar antenna, which can reduce the damage to the mechanical structure caused by the heavier radar antenna when flipping, thereby improving the service life of the flipping device.

[0033] like Figure 7As shown, a control system for a radar antenna flip mechanism includes a main control unit, which includes an angle sensor, a pitch angle controller, a directional angle controller, an energy storage power supply, and a central processing unit. The output ends of the angle sensor, the pitch angle controller, and the directional angle controller are all connected to the input end of the central processing unit. The pitch flip adjustment and directional flip adjustment of the radar antenna can be achieved by controlling the relative rotation direction of the first servo motor 2 and the second servo motor 3 respectively through the pitch angle controller and the directional angle controller. The flip angle can be accurately controlled by the angle sensor. The control system is simple, easy to operate, and highly reliable.

[0034] The output end of the central processing unit is connected to the input end of the external driving device, and the energy storage power supply is used to supply power to the electrical equipment of the entire device.

[0035] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A radar antenna flipping mechanism, comprising a main rod (1), characterized in that: Both ends of the main rod (1) are fixedly connected to mounting blocks (7), the rear end of the left mounting block (7) is fixedly connected to a first servo motor (2), and the rear end of the right mounting block (7) is fixedly connected to a second servo motor (3), the driving end of the first servo motor (2) passes through the corresponding mounting block (7) and is fixedly connected to a first driving gear (4), and the driving end of the second servo motor (3) passes through the corresponding mounting block (7) and is fixedly connected to a second driving gear (8), the front side of the main rod (1) is fixedly connected to a reinforcing rod (30), the front end of the reinforcing rod (30) is fixedly connected to an adjusting block (25), the left end of the adjusting block (25) is rotatably connected to a second transmission rod (23), the right end of the adjusting block (25) is rotatably connected to a first transmission rod (9), and the second transmission rod (23) is fixedly connected to a connecting block (20) at an end opposite to the front side of the first transmission rod (9). One side of the second transmission rod (23) is rotatably connected to the first transmission gear (5), one side of the first transmission rod (9) is rotatably connected to the second transmission gear (10), the internal through hole of the connecting block (20) is rotatably connected to the connecting frame (11), one end of the connecting frame (11) is fixedly connected to the bevel gear (14), the other end of the connecting frame (11) is fixedly connected to the antenna body (12), the middle part of the connecting frame (11) is fixedly connected to the stabilizing frame (13), the outer end of the stabilizing frame (13) is fixedly connected to the outer wall of the antenna body (12), the right side of the first driving gear (4) is meshed and connected to the outer side of the first transmission gear (5), the left side of the second driving gear (8) is meshed and connected to the outer side of the second transmission gear (10), and the opposite sides of the first transmission gear (5) and the second transmission gear (10) are respectively meshed and connected to the two sides of the bevel gear (14).

2. The radar antenna flipping mechanism according to claim 1, characterized in that: The bottom end of the mounting block (7) is fixedly connected to a winding box (15), a winding groove (17) is provided inside the winding box (15), a stepper motor (16) is fixedly connected to one side of the inner wall of the winding box (15), a driving end of the stepper motor (16) is fixedly connected to a rotating rod (19), a winding roller (18) is fixedly connected to the middle part of the rod body of the rotating rod (19), a steel cable (29) is installed inside the winding roller (18), an outer end of the rotating rod (19) is rotatably connected to the inner wall of the winding box (15), a guide rod (31) is fixedly connected to the rear side of the main rod (1), and a guide wheel (21) is rotatably connected to the rear end of the guide rod (31).

3. The radar antenna flipping mechanism according to claim 1, characterized in that: The rear end of the first transmission rod (9) passes through the right end of the adjustment block (25) and is rotatably connected to the inner wall of the adjustment block (25); the rod body of the first transmission rod (9) is fixedly connected to the interior of the adjustment block (25); a slide groove (28) is provided inside the adjustment block (25); a tooth plate (26) is slidably connected inside the slide groove (28); the top of the tooth plate (26) is rotatably connected to a top wheel (27); and the front end of the tooth plate (26) is meshedly connected to one side of the half gear (24).

4. The radar antenna flipping mechanism according to claim 2, characterized in that: The top end of the connecting block (20) is fixedly connected to a connecting plate (22), the rear end of the connecting plate (22) is fixedly connected to a tension sensor (6), and the rear end of the tension sensor (6) is fixedly connected to the end of the steel cable (29).

5. A control system for a radar antenna flip mechanism, using the radar antenna flip mechanism according to any one of claims 1 to 4, comprising a main control unit, characterized in that: The main control unit includes an angle sensor, a pitch angle controller, a direction angle controller, an energy storage power supply, and a central processing unit. The output ends of the angle sensor, the pitch angle controller, and the direction angle controller are all connected to the input end of the central processing unit.

6. The control system of the radar antenna flip mechanism according to claim 5, characterized in that: The output end of the central processing unit is connected to the input end of the external driving device, and the energy storage power supply is used to supply power to the electrical equipment of the entire device.

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