A rudder blade matching center frame

Abstract

The present invention discloses a rudder blade blowing center frame, which relates to the technical field of rudder blade blowing, including a bottom plate, a movable assembly is arranged on the bottom plate, and the movable assembly is connected to a support plate, an adjustment assembly is arranged inside the support plate, a support block is symmetrically arranged on the top of the support plate, a square box is fixedly installed inside the support block, a negative pressure fan is fixedly installed inside the square box, an array of vents is arranged on the square box, and a filter is arranged inside the vent. The present invention facilitates the rapid limitation of rudder bars of different sizes and the blowing process of rudder blades through the installed negative pressure fan and negative pressure suction cup. When the negative pressure fan works, the air inside the ventilation groove is extracted, and the suction groove extracts the outside air through the negative pressure suction cup. After the negative pressure suction cup contacts the surface of the rudder bar, the position of the rudder bar is limited, thereby achieving the purpose of facilitating the limitation of rudder bars of different sizes, improving flexibility, and facilitating the blowing process of the rudder bar and the rudder blade.

Description

Technical Field

[0001] The invention relates to the technical field of rudder blade matching, and in particular to a rudder blade matching center frame. Background Art

[0002] During ship manufacturing and maintenance, the rudder blade center stand is an auxiliary tool or device used in the rudder blade assembly process to ensure that the rudder blade is correctly aligned and matched with the rudder shaft or other related parts. The rudder blade is part of the ship's rudder and is responsible for controlling the ship's heading. The rudder shaft is an important component connecting the rudder blade and the hull, through which the steering force of the rudder blade is transmitted. During the assembly process, the center stand can help accurately position the rudder blade and ensure that it is aligned with the center line of the rudder shaft or other components, thereby ensuring that the rudder blade can work effectively. During the assembly or maintenance process, the center stand can provide additional support to help operators work more easily.

[0003] The existing rudder blade matching center bracket fails to achieve rapid limit matching of rudder stocks of different sizes when providing support for the rudder stock and matching with the rudder blade, which restricts the optimization of the work process to a certain extent and reduces the working efficiency.

[0004] Patent document CN117125221A discloses a rudder blade center frame, "including a rudder platform and a center frame. The rudder platform is provided with at least two sets of center frames for supporting the rudder. The center frame includes a base and a supporting assembly. The center frame is fixed to the rudder platform through the base. Two sets of supporting assemblies are symmetrically arranged on the base. The two sets of supporting assemblies are close to each other at one end to form a V-shaped opening. By adjusting the position of the supporting assembly, the position of the supporting part of the rudder is controlled in the X-axis, Y-axis or four quadrants. The inclined surfaces on both sides of the V-shaped opening in the present invention can be adjusted independently. By changing the position of the two sides, the inclined surfaces on both sides can be adjusted independently. The spacing of the inclined planes can support shafts of different diameters. By adjusting the supporting components on both sides individually or in combination, the movement adjustment of the shaft support in the X-axis and Y-axis directions can be achieved, or the center point of the shaft can be controlled to change within four quadrants, thereby adjusting the two supporting points of the shaft so that the axis of the shaft coincides with the axis of the tapered hole of the rudder blade. However, the rudder blade center frame in the above-mentioned public documents mainly considers the adjustment of the two supporting points of the shaft, but does not consider the problem of quickly limiting rudder poles of different sizes. Therefore, it is necessary to develop a rudder blade center frame. Summary of the invention

[0005] The purpose of the present invention is to solve the problem in the prior art that it is inconvenient to quickly limit the position of rudder poles of different sizes and mate rudder blades, and to propose a rudder blade mate center frame.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A rudder blade brush center frame comprises a bottom plate, a support plate is symmetrically arranged on the bottom plate, a moving assembly is arranged on the bottom plate, and the moving assembly is connected to the support plate, an adjustment assembly is arranged inside the support plate, a support block is symmetrically arranged on the top of the support plate, and the adjustment assembly is connected to the support block, a square box is fixedly installed inside the support block, a negative pressure fan is fixedly installed inside the square box, an array of vents is arranged on the square box, a filter is arranged inside the vents, a ventilation groove is fixedly installed on the top of the square box, and the input end of the negative pressure fan is connected to the ventilation groove, and the top of the ventilation groove is fixedly installed A connecting pipe is fixedly installed on the support block, a square frame is fixedly installed on the support block, a driving motor is fixedly installed inside the square frame, a threaded rod is fixedly connected to the output end of the driving motor, a sliding plate is arranged inside the square frame, a threaded ring is fixedly installed inside the sliding plate, and the threaded rod is threadedly connected to the threaded ring, a through groove is arranged on the top of the square frame, a square plate is passed through the through groove, and the bottom end of the square plate is fixedly connected to the sliding plate, an exhaust groove is fixedly installed on the top of the square plate, and a negative pressure suction cup is arranged in an array on the exhaust groove, the connecting pipe is connected to the exhaust groove, and a guide assembly is arranged on the bottom plate.

[0008] Preferably, the guide assembly includes a trough body, a guide rod and a guide block, the trough body is symmetrically arranged on the base plate, the guide rod is fixedly installed inside the trough body, the guide block is arranged inside the trough body, and the guide rod passes through the guide block, and the top of the guide block is fixedly connected to the bottom of the support plate.

[0009] Preferably, the adjustment assembly includes a bidirectional screw, a No. 1 motor, a sliding groove and a slider, the sliding groove is embedded in the support plate, the bidirectional screw is movably arranged in the sliding groove, the No. 1 motor is fixedly installed in the support plate, and the output end of the No. 1 motor is fixedly connected to one end of the bidirectional screw, the slider is symmetrically arranged in the sliding groove, and the bidirectional screw is threadedly connected to the slider, and the slider is fixedly connected to the bottom of the support block.

[0010] Preferably, a mounting groove is provided on the support block, a conveyor belt is provided inside the mounting groove, a No. 2 motor is fixedly mounted on the support block, and an output end of the No. 2 motor is connected to the conveyor belt.

[0011] Preferably, the moving assembly includes a driving plate, a limiting groove, a rack, a support frame and a limiting block, the driving plate is fixedly mounted on the support plate, the limiting groove is arranged on the driving plate, the rack is symmetrically mounted on the driving plate, the support frame is fixedly mounted on the bottom plate, the limiting block is arranged inside the limiting groove, and the top end of the limiting block is fixedly connected to the support frame, and a driving assembly is arranged inside the support frame.

[0012] Preferably, the driving assembly includes a limit frame, a gear, a No. 3 motor, a driving wheel and a driven wheel, the limit frame is fixedly installed inside the support frame, the gear is movably arranged inside the limit frame, and the gear is meshed with the rack, the No. 3 motor is fixedly installed inside the support frame, and the driving wheel is fixedly installed at the output end of the No. 3 motor, the driven wheel is fixedly installed on the gear, and the driving wheel and the driven wheel are connected by belt drive, a battery assembly is fixedly installed inside the support frame, and the battery assembly is electrically connected to the No. 3 motor.

[0013] Preferably, a limiting rod is fixedly installed inside the square frame, and the limiting rod passes through the sliding plate.

[0014] Preferably, bellows are symmetrically inlaid inside the bottom plate, and the bellows are located on one side of the trough body, and the output end of the negative pressure fan is connected to the bellows through a pipeline.

[0015] Preferably, the bellows is provided with exhaust holes in an array, and a filter is provided inside the exhaust holes.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1. The present invention installs a negative pressure fan and a negative pressure suction cup, which facilitates the rapid limiting and rudder blade matching process of rudder stocks of different sizes. When the negative pressure fan is working, the air inside the ventilation groove is extracted, and then the air inside the air extraction groove is extracted through the connecting pipe. The air extraction groove extracts external air through the negative pressure suction cup. The driving motor drives the threaded rod to rotate. The rotation of the threaded rod drives the sliding plate to move through the threaded ring. When the sliding plate moves, it drives the air extraction groove to move through the square plate. The movement of the air extraction groove drives the negative pressure suction cup to move. After the negative pressure suction cup contacts the surface of the rudder stock, the position of the rudder stock is limited, thereby achieving the purpose of facilitating the limiting of rudder stocks of different sizes, improving flexibility, and facilitating the matching process of the rudder stock and the rudder blade.

[0018] 2. The present invention facilitates the cleaning of the rudder stock by installing a bellows. The air drawn by the air compressor will flow into the bellows. The air entering the bellows will flow upward through the exhaust holes. When the air flows upward and passes through the rudder stock, impurities adsorbed on the surface of the rudder stock can be removed, thereby improving the cleanliness of the rudder stock and effectively avoiding excessive impurities adsorbed on the rudder stock. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a rudder blade center frame proposed by the present invention;

[0020] Figure 2 This is a schematic diagram of the support plate structure of a rudder blade center frame proposed by the present invention;

[0021] Figure 3 This is a schematic diagram of the support frame structure of a rudder blade center frame proposed by the present invention;

[0022] Figure 4 This is a schematic diagram of a square box structure of a rudder blade equipped with a center frame proposed by the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of an air extraction slot of a rudder blade center frame proposed by the present invention;

[0024] Figure 6 This is a schematic diagram of a square frame structure of a rudder blade center frame proposed by the present invention;

[0025] Figure 7 A rudder blade matching center frame proposed by the present invention Figure 2 A schematic diagram of the enlarged structure in the middle;

[0026] Figure 8 This is a schematic diagram of the bellows structure of a rudder blade equipped center frame proposed by the present invention.

[0027] In the figure: 1, bottom plate; 2, trough body; 3, guide rod; 4, support plate; 5, guide block; 6, bidirectional screw rod; 7, No. 1 motor; 8, support block; 9, sliding groove; 10, slider; 11, mounting groove; 12, conveyor belt; 13, No. 2 motor; 14, drive plate; 15, limit groove; 16, rack; 17, support frame; 18, limit block; 19, limit frame; 20, gear; 21, battery assembly; 22, No. 3 Motor; 23. Driving wheel; 24. Driven wheel; 25. Square box; 26. Ventilation hole; 27. Negative pressure fan; 28. Ventilation slot; 29. ​​Connecting pipe; 30. Square frame; 31. Driving motor; 32. Threaded rod; 33. Sliding plate; 34. Threaded ring; 35. Square plate; 36. Limit rod; 37. Through slot; 38. Exhaust slot; 39. Negative pressure suction cup; 40. Bellows; 41. Exhaust hole; 42. Filter. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship 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 a limitation on the present invention.

[0030] Reference Figure 1-8 A rudder blade whisk center frame includes a bottom plate 1, a support plate 4 is symmetrically arranged on the bottom plate 1, a moving component is arranged on the bottom plate 1, and the moving component is connected to the support plate 4, an adjusting component is arranged inside the support plate 4, a support block 8 is symmetrically arranged on the top of the support plate 4, and the adjusting component is connected to the support block 8, a square box 25 is fixedly installed inside the support block 8, a negative pressure fan 27 is fixedly installed inside the square box 25, a vent hole 26 is arranged in an array on the square box 25, a filter is arranged inside the vent hole 26, a ventilation slot 28 is fixedly installed on the top of the square box 25, and the input end of the negative pressure fan 27 is connected to the ventilation slot 28, and a filter is fixedly installed on the top of the ventilation slot 28 A connecting pipe 29, a square frame 30 is fixedly installed on the support block 8, a driving motor 31 is fixedly installed inside the square frame 30, a threaded rod 32 is fixedly connected to the output end of the driving motor 31, a sliding plate 33 is arranged inside the square frame 30, a threaded ring 34 is fixedly installed inside the sliding plate 33, and the threaded rod 32 is threadedly connected to the threaded ring 34, a through groove 37 is arranged on the top of the square frame 30, a square plate 35 is passed through the through groove 37, and the bottom end of the square plate 35 is fixedly connected to the sliding plate 33, an air extraction groove 38 is fixedly installed on the top of the square plate 35, and a negative pressure suction cup 39 is arranged on the air extraction groove 38, the connecting pipe 29 is connected to the air extraction groove 38, and the bottom plate 1 is provided with a guide component. When the rudder stock and the rudder blade are matched by the rudder blade matching center frame, the rudder stock is supported and limited by the support block 8. The rudder stock is supported according to the size of the rudder stock. The adjustment component can adjust the spacing between the two groups of support blocks 8, so as to facilitate the support of rudder stocks of different sizes. The position of the support plate 4 is adjusted by the moving component, and then the support block 8 is adjusted. The adjustment of the support block 8 will adjust the position of the rudder stock, and then the position of the rudder stock is adjusted, which is convenient for the matching process of the rudder stock and the rudder blade. When the rudder stock and the rudder blade are matched, the position of the rudder stock is limited to prevent the position of the rudder stock from sliding, so that the negative pressure fan 27 works, which will The air in the suction groove 38 is extracted through the connecting pipe 29, and the air inside the suction groove 38 is extracted through the connecting pipe 29. The suction groove 38 extracts the outside air through the negative pressure suction cup 39. The driving motor 31 drives the threaded rod 32 to rotate. The rotation of the threaded rod 32 drives the sliding plate 33 to move through the threaded ring 34, and then the sliding plate 33 moves. The square plate 35 drives the suction groove 38 to move. The movement of the suction groove 38 drives the negative pressure suction cup 39 to move. After the negative pressure suction cup 39 contacts the surface of the rudder stock, it will limit the position of the rudder stock, thereby achieving the purpose of facilitating the limiting of rudder stocks of different sizes and facilitating the matching process of the rudder stock and the rudder blade.

[0031] Reference Figure 1The guide assembly includes a slot body 2, a guide rod 3 and a guide block 5. The slot body 2 is symmetrically arranged on the bottom plate 1, the guide rod 3 is fixedly installed inside the slot body 2, the guide block 5 is arranged inside the slot body 2, and the guide rod 3 passes through the guide block 5. The top of the guide block 5 is fixedly connected to the bottom of the support plate 4. When the support plate 4 moves, the guide block 5 will be driven inside the slot body 2. When the guide block 5 moves, it will drive the support plate 4 to move smoothly. The guide rod 3 cooperates with the guide block 5 to guide the support plate 4, so that the support plate 4 moves smoothly.

[0032] Reference Figure 1 The adjusting component includes a bidirectional screw rod 6, a No. 1 motor 7, a sliding groove 9 and a slider 10. The sliding groove 9 is embedded in the support plate 4. The bidirectional screw rod 6 is movably arranged in the sliding groove 9. The No. 1 motor 7 is fixedly installed in the support plate 4, and the output end of the No. 1 motor 7 is fixedly connected to one end of the bidirectional screw rod 6. The slider 10 is symmetrically arranged in the sliding groove 9, and the bidirectional screw rod 6 is threadedly connected to the slider 10. The slider 10 is fixedly connected to the bottom of the support block 8. The spacing of the support blocks 8 symmetrically arranged in the adjusting component is adjusted. When supporting rudder rods of different sizes, the No. 1 motor 7 is working to drive the bidirectional screw rod 6 to rotate. Two sets of opposite threads are symmetrically arranged on the bidirectional screw rod 6. When the bidirectional screw rod 6 rotates, it will drive the slider 10 to move in opposite directions. The movement of the slider 10 will adjust the distance between the support blocks 8, thereby facilitating the support of rudder rods of different sizes.

[0033] Reference Figure 1 and Figure 2 A mounting groove 11 is provided on the support block 8, a conveyor belt 12 is provided inside the mounting groove 11, a No. 2 motor 13 is fixedly mounted on the support block 8, and the output end of the No. 2 motor 13 is connected to the conveyor belt 12. The support block 8 provides an installation space for the conveyor belt 12 through the mounting groove 11. The No. 2 motor 13 will drive the conveyor belt 12 to move when it works. When the conveyor belt 12 moves, the rudder bar will rotate, thereby adjusting the position of the rudder bar.

[0034] Reference Figure 2 , Figure 3 and Figure 7The moving assembly includes a driving plate 14, a limiting groove 15, a rack 16, a support frame 17 and a limiting block 18. The driving plate 14 is fixedly mounted on the support plate 4, the limiting groove 15 is arranged on the driving plate 14, the rack 16 is symmetrically mounted on the driving plate 14, the support frame 17 is fixedly mounted on the bottom plate 1, the limiting block 18 is arranged inside the limiting groove 15, and the top of the limiting block 18 is fixedly connected to the support frame 17, and a driving assembly is arranged inside the support frame 17. The driving assembly includes a limiting frame 19, a gear 20, a No. 3 motor 22, a driving wheel 23 and a driven wheel 24. The limiting frame 19 is fixedly mounted inside the support frame 17, the gear 20 is movably arranged inside the limiting frame 19, and the gear 20 is meshed with the rack 16, the No. 3 motor 22 is fixedly mounted inside the support frame 17, and the driving wheel 23 is fixedly mounted on the output end of the No. 3 motor 22, and the driven wheel 24 is fixedly mounted on the gear 20 On, the driving wheel 23 and the driven wheel 24 are connected by belt transmission, a battery assembly 21 is fixedly installed inside the support frame 17, and the battery assembly 21 is electrically connected to the No. 3 motor 22. When the position of the rudder stock supported by the support block 8 is adjusted and the rudder blade is matched, the No. 3 motor 22 is operated to drive the driving wheel 23 to rotate. The driving wheel 23 rotates through the belt and the driven wheel 24 to drive the gear 20 to rotate. When the gear 20 rotates, the rack 16 moves. When the rack 16 moves, it drives the driving plate 14 to move. When the driving plate 14 moves, the limiting groove 15 and the limiting block 18 cooperate to make the driving plate 14 move smoothly. When the driving plate 14 moves, it will push the support plate 4 to move synchronously. The movement of the support plate 4 will drive the support block 8 to move, and then the position of the rudder stock will be adjusted, so as to achieve the purpose of adjusting the position of the rudder stock, facilitate the matching process of the rudder blade and the rudder stock, and improve flexibility.

[0035] Reference Figure 6 A limiting rod 36 is fixedly installed inside the square frame 30, and the limiting rod 36 passes through the sliding plate 33. When the sliding plate 33 slides inside the square frame 30, the limiting rod 36 will limit and guide the sliding plate 33, so that the sliding plate 33 moves smoothly.

[0036] Reference Figure 1 and Figure 8 The bottom plate 1 is symmetrically inlaid with bellows 40, and the bellows 40 is located on one side of the trough body 2. The output end of the negative pressure fan 27 is connected with the bellows 40 through a pipeline. The bellows 40 is provided with exhaust holes 41 in an array, and a filter 42 is provided inside the exhaust holes 41. The air drawn by the negative pressure fan 27 will flow into the bellows 40. The air entering the bellows 40 will flow upward through the exhaust holes 41. When the air flows upward and passes through the rudder stock, the impurities adsorbed on the surface of the rudder stock can be removed, thereby improving the cleanliness of the rudder stock and effectively avoiding excessive impurities adsorbed on the rudder stock.

[0037] The specific working principle of the present invention is as follows: first, when the rudder bar and the rudder blade are matched by the rudder blade matching center frame, the rudder bar is supported and limited by the support block 8, so that the No. 1 motor 7 works to drive the bidirectional screw rod 6 to rotate, and two sets of opposite threads are symmetrically arranged on the bidirectional screw rod 6. When the bidirectional screw rod 6 rotates, it drives the slider 10 to move in opposite directions. The movement of the slider 10 adjusts the distance between the support blocks 8, so as to facilitate the support of rudder bars of different sizes. The position of the rudder bar supported by the support block 8 is adjusted, and when matching with the rudder blade, the No. 3 motor The operation of the drive wheel 22 will drive the driving wheel 23 to rotate. The rotation of the driving wheel 23 will drive the gear 20 to rotate through the belt and the driven wheel 24. When the gear 20 rotates, the rack 16 will move. When the rack 16 moves, the driving plate 14 will move. When the driving plate 14 moves, the limit groove 15 and the limit block 18 will cooperate to make the driving plate 14 move smoothly. When the driving plate 14 moves, it will push the support plate 4 to move synchronously. The movement of the support plate 4 will drive the support block 8 to move, and then the position of the rudder stock will be adjusted, so as to achieve the purpose of adjusting the position of the rudder stock, which is convenient for the rudder blade and the rudder stock to move. The rudder stock is limited in position when the rudder stock and the rudder blade are being matched, so as to prevent the rudder stock from sliding. The negative pressure fan 27 works, and the air in the ventilation groove 28 is extracted, and then the air in the exhaust groove 38 is extracted through the connecting pipe 29. The exhaust groove 38 extracts the outside air through the negative pressure suction cup 39. The air extracted by the negative pressure fan 27 flows into the bellows 40. The air entering the bellows 40 flows upward through the exhaust hole 41. When the air flows upward and passes through the rudder stock, the rudder stock can be Impurities adsorbed on the surface are removed, thereby improving the cleanliness of the rudder stock. The driving motor 31 will drive the threaded rod 32 to rotate. The rotation of the threaded rod 32 will drive the sliding plate 33 to move through the threaded ring 34. Then, when the sliding plate 33 moves, it will drive the vacuum groove 38 to move through the square plate 35. The movement of the vacuum groove 38 drives the negative pressure suction cup 39 to move. After the negative pressure suction cup 39 contacts the surface of the rudder stock, it will limit the position of the rudder stock, thereby achieving the purpose of facilitating the limiting of rudder stocks of different sizes and facilitating the matching process of the rudder stock and the rudder blade.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A rudder blade center frame, comprising a bottom plate (1), characterized in that: A support plate (4) is symmetrically arranged on the bottom plate (1), a moving component is arranged on the bottom plate (1), and the moving component is connected to the support plate (4), an adjustment component is arranged inside the support plate (4), a support block (8) is symmetrically arranged on the top of the support plate (4), and the adjustment component is connected to the support block (8), a square box (25) is fixedly installed inside the support block (8), a negative pressure fan (27) is fixedly installed inside the square box (25), an array of ventilation holes (26) are arranged on the top of the square box (25), a filter is arranged inside the ventilation holes (26), a ventilation groove (28) is fixedly installed on the top of the square box (25), and an input end of the negative pressure fan (27) is connected to the ventilation groove (28), a connecting pipe (29) is fixedly installed on the top of the ventilation groove (28), and the support block (8) is provided with a plurality of air holes (26) arranged on the top of the square box (25). A square frame (30) is fixedly installed, a driving motor (31) is fixedly installed inside the square frame (30), an output end of the driving motor (31) is fixedly connected to a threaded rod (32), a sliding plate (33) is arranged inside the square frame (30), a threaded ring (34) is fixedly installed inside the sliding plate (33), and the threaded rod (32) and the threaded ring (34) are threadedly connected, a through groove (37) is arranged at the top of the square frame (30), a square plate (35) is inserted inside the through groove (37), and the bottom end of the square plate (35) is fixedly connected to the sliding plate (33), an air extraction groove (38) is fixedly installed at the top of the square plate (35), and a negative pressure suction cup (39) is arranged in an array on the air extraction groove (38), a connecting pipe (29) is connected to the air extraction groove (38), and a guide component is arranged on the bottom plate (1).

2. A rudder blade center frame according to claim 1, characterized in that: The guide assembly comprises a trough body (2), a guide rod (3) and a guide block (5); the trough body (2) is symmetrically arranged on the bottom plate (1); the guide rod (3) is fixedly mounted inside the trough body (2); the guide block (5) is arranged inside the trough body (2); the guide rod (3) passes through the guide block (5); and the top of the guide block (5) is fixedly connected to the bottom of the support plate (4).

3. A rudder blade center frame according to claim 1, characterized in that: The adjustment assembly comprises a bidirectional screw (6), a No. 1 motor (7), a sliding groove (9) and a sliding block (10); the sliding groove (9) is embedded in the support plate (4); the bidirectional screw (6) is movably arranged in the sliding groove (9); the No. 1 motor (7) is fixedly installed in the support plate (4); the output end of the No. 1 motor (7) is fixedly connected to one end of the bidirectional screw (6); the sliding block (10) is symmetrically arranged in the sliding groove (9); the bidirectional screw (6) is threadedly connected to the sliding block (10); and the sliding block (10) is fixedly connected to the bottom of the support block (8).

4. A rudder blade center frame according to claim 1, characterized in that: The support block (8) is provided with a mounting groove (11), a conveyor belt (12) is provided inside the mounting groove (11), a second motor (13) is fixedly mounted on the support block (8), and an output end of the second motor (13) is connected to the conveyor belt (12).

5. The rudder blade center frame according to claim 1, characterized in that: The moving assembly comprises a driving plate (14), a limiting groove (15), a rack (16), a support frame (17) and a limiting block (18); the driving plate (14) is fixedly mounted on the support plate (4); the limiting groove (15) is arranged on the driving plate (14); the rack (16) is symmetrically mounted on the driving plate (14); the support frame (17) is fixedly mounted on the bottom plate (1); the limiting block (18) is arranged inside the limiting groove (15); and the top end of the limiting block (18) is fixedly connected to the support frame (17); and the driving assembly is arranged inside the support frame (17).

6. A rudder blade brushing center frame according to claim 5, characterized in that: The driving assembly comprises a limit frame (19), a gear (20), a No. 3 motor (22), a driving wheel (23) and a driven wheel (24); the limit frame (19) is fixedly mounted inside the support frame (17); the gear (20) is movably arranged inside the limit frame (19), and the gear (20) is meshed with the rack (16); the No. 3 motor (22) is fixedly mounted inside the support frame (17), and the driving wheel (23) is fixedly mounted on the output end of the No. 3 motor (22); the driven wheel (24) is fixedly mounted on the gear (20), and the driving wheel (23) and the driven wheel (24) are connected via a belt drive; a battery assembly (21) is fixedly mounted inside the support frame (17), and the battery assembly (21) is electrically connected to the No. 3 motor (22).

7. The rudder blade center frame according to claim 1, characterized in that: A limiting rod (36) is fixedly installed inside the square frame (30), and the limiting rod (36) passes through the sliding plate (33).

8. The rudder blade center frame according to claim 1, characterized in that: A bellows (40) is symmetrically inlaid inside the bottom plate (1), and the bellows (40) is located on one side of the tank body (2), and the output end of the negative pressure fan (27) is connected to the bellows (40) through a pipeline.

9. A rudder blade center frame according to claim 8, characterized in that: The bellows (40) are provided with exhaust holes (41) in an array, and a filter screen (42) is provided inside the exhaust holes (41).

Images