Rust removal device for ship body of large ship

Abstract

The invention discloses a derusting device for a large ship body, the derusting device comprises a fixed disc and a laser derusting device for derusting, a swing arm is rotatably mounted in the middle of the upper end of the fixed disc, the swing arm is controlled by a swing mechanism to swing back and forth on the fixed disc, the laser derusting device is mounted on a vertical plate, and the laser derusting device is mounted on the vertical plate. A pressure sensor is arranged on the outer side of the fixing disc, a pressing plate used for extruding the pressure sensor is arranged on one side of the pressure sensor, and the pressing plate is controlled by an extruding mechanism to extrude or leave the pressure sensor; the pressure sensor is electrically connected with a PLC used for controlling the lifting mechanism and the swing mechanism to operate. Manual work can be replaced by the swing mechanism for reciprocating swing, the laser rust remover can be controlled by the lifting mechanism to descend by a certain height to remove rust on the next layer, manual rust removal is replaced by automation, the rust removal efficiency is improved, and manpower is saved.

Description

Technical Field

[0001] This invention relates to the field of laser rust removal technology, and more specifically to a rust removal device for the hull of large ships. Background Technology

[0002] Ship hulls are constantly exposed to the complex environment of seawater, humid air, and marine organisms, making them highly susceptible to corrosion (mainly composed of iron oxide and iron hydroxide). Corrosion not only reduces the structural strength of the hull and shortens its service life, but also increases drag and fuel consumption. Therefore, regular rust removal is a core aspect of ship maintenance. Laser rust removal, as a new and green rust removal technology, has seen rapid application in the shipbuilding industry in recent years. Laser rust removal utilizes a high-energy laser beam (usually in the infrared band, such as 1064nm) to irradiate the rust layer on the hull, achieving rust removal through selective energy absorption.

[0003] In practice, when removing rust from the hull of large ships, workers usually stand on a lifting device and manually swing the laser rust removal equipment back and forth to remove rust. This method is inefficient, and because large ships are large, it requires a lot of manpower. Furthermore, the dust generated by laser rust removal can affect the health of workers. Therefore, we propose a rust removal device for the hull of large ships. Summary of the Invention

[0004] The purpose of this invention is to provide a rust removal device for the hull of large ships, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a rust removal device for the hull of a large ship, comprising a fixed plate and a laser rust remover for rust removal, wherein a swing arm is rotatably mounted on the upper middle part of the fixed plate, and the swing arm is controlled to swing back and forth on the fixed plate by a swing mechanism.

[0006] A vertical plate is provided on one side of the fixed plate, and the laser rust remover is installed on the vertical plate. The laser rust remover is controlled by a lifting mechanism to descend or rise in stages on the vertical plate.

[0007] A pressure sensor is provided on the outside of the fixed plate, and a pressure plate for squeezing the pressure sensor is provided on one side of the pressure sensor. The pressure plate is controlled by a squeezing mechanism to squeeze or move away from the pressure sensor.

[0008] The fixed plate is provided with a C-shaped groove, and a triggering mechanism for driving the extrusion mechanism is provided in the C-shaped groove;

[0009] Each swing of the swing arm triggers the extrusion mechanism to run once, causing the pressure plate to extrude the pressure sensor.

[0010] The pressure sensor is electrically connected to a PLC controller for controlling the operation of the lifting mechanism and the swing mechanism.

[0011] When the pressure sensor is squeezed once, the PLC controller controls the lifting mechanism to drive the laser rust remover to descend a certain distance. Then, the swing mechanism drives the laser rust remover to swing once to remove rust. When the laser rust remover descends to the bottom of the vertical plate, the pressure sensor is squeezed again, and the PLC controller controls the lifting mechanism to drive the laser rust remover to rise to the top of the vertical plate.

[0012] Preferably, the extrusion mechanism includes two gears 1 rotatably mounted on the upper end of the fixed disk, and the two gears 1 are symmetrically arranged on the outside of the C-shaped groove. The two gears 1 are simultaneously meshed with gear 2, and gear 2 is located on the line of symmetry between the two gears 1.

[0013] The gear is meshed with a rack, the rack has guide posts at both ends, the outer diameter of the fixed disk has an extension plate, and the guide posts are slidably connected to the brackets on both sides of the extension plate.

[0014] The upper end of the extension plate is provided with a fixing block, and a telescopic rod is slidably connected to the fixing block. The pressure plate is located at one end of the telescopic rod and corresponds to the pressure sensor. A reset spring for resetting the pressure plate is sleeved on the outside of the telescopic rod.

[0015] The telescopic rod is provided with a triangular slider at the other end, and two triangular extrusion blocks are provided on one side of the rack, with the triangular slider located in the middle of the two triangular extrusion blocks;

[0016] When the rack moves, both triangular pressing blocks can press the triangular slider, causing the pressure plate to contact the pressure sensor.

[0017] Preferably, the triggering mechanism includes an arc-shaped slider located inside the C-shaped groove, and the bottom of the swing arm is provided with two drive columns for driving the arc-shaped slider. The drive columns are located inside the C-shaped groove and are slidably connected to the C-shaped groove.

[0018] A partition block is provided in the middle of the inner side of the C-shaped groove, and a reset spring is provided on both sides of the partition block for resetting the arc-shaped slider;

[0019] The upper end of the C-shaped groove is provided with two limiting plates, which are used to limit the two arc-shaped sliders respectively;

[0020] Both arc-shaped sliders have arc-shaped racks at their upper ends, and the two arc-shaped racks correspond to the two gears respectively, but the two arc-shaped racks do not contact the two gears.

[0021] When the drive column drives the arc-shaped slider to slide, one of the arc-shaped racks meshes with a gear and drives the gear to rotate.

[0022] Preferably, the lifting mechanism includes two synchronous pulleys rotatably mounted at the upper and lower ends of the vertical plate and a lifting motor for driving the synchronous pulleys to rotate; the two synchronous pulleys are connected by a synchronous belt drive.

[0023] The vertical plate is slidably connected to a lifting frame, which is fixedly connected to a synchronous belt, and the laser rust remover is fixedly installed on the lifting frame.

[0024] Preferably, the lifting frame includes a mounting plate for mounting a laser rust remover, a slide rail is provided on one side of the vertical plate, the lifting frame is slidably connected to the slide rail, and a U-shaped groove is provided on the back of the mounting plate, the U-shaped groove passing through two through slots of the vertical plate and being fixedly connected to a timing belt.

[0025] Preferably, the swing mechanism includes a swing motor installed at the bottom of the fixed plate, a swing arm fixedly connected to the output end of the swing motor, a second swing shaft at the upper end of the swing arm, a third swing shaft at the upper end of the swing arm, a connecting rod connecting the third swing shaft and the second swing shaft, and the two ends of the connecting rod are rotatably connected to the third swing shaft and the second swing shaft respectively.

[0026] Preferably, one end of the swing arm extends to the outside of the fixed plate, and one end of the swing arm is provided with a connecting frame, which is fixedly connected to the middle of the vertical plate.

[0027] Preferably, the upper middle part of the fixed plate is provided with a rotating shaft, and the middle part of the swing arm is rotatably connected to the rotating shaft.

[0028] Preferably, the bottom of the fixed plate is provided with a vertical pipe, the bottom of the vertical pipe is provided with a base, and the base is fixed to the lifting equipment during use.

[0029] Compared with the prior art, the beneficial effects of the present invention are:

[0030] This invention utilizes a swing mechanism to replace manual reciprocating swing, and a lifting mechanism to control the laser rust remover to descend to a certain height to remove rust from the next layer. During operation, when the rotating arm completes half a turn, the arm swings once, and simultaneously the vertical plate swings once, allowing the laser rust remover to perform one rust removal operation on the ship's hull. After the rotating arm completes half a turn, the trigger mechanism within the C-shaped groove triggers the pressing mechanism to operate once, causing the pressure plate to press against the pressure sensor. This, in turn, drives the lifting motor via a PLC controller, allowing the laser rust remover to instantly... After descending a certain distance, the swing mechanism continues to operate, causing the laser rust remover to swing again and continue removing rust from the hull. This process is repeated to continuously remove rust from the hull from top to bottom. When the laser rust remover descends to the bottom of the vertical plate, the swing mechanism stops operating via the PLC controller, while the lifting mechanism drives the laser rust remover to the top of the vertical plate. At the same time, the lifting equipment descends, causing the entire device to descend along with it. Once the lifting equipment stops, the next round of rust removal can begin. This automation replaces manual rust removal, improving efficiency and saving manpower. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0032] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0033] Figure 3 This is a schematic diagram of the overall structure of the present invention. Figure 3 ;

[0034] Figure 4 This is a schematic diagram of the overall structure of the present invention. Figure 4 ;

[0035] Figure 5 This is a top view of the present invention.

[0036] In the diagram: 1. Fixed plate; 11. C-groove; 12. Rotating shaft one; 13. Vertical pipe; 14. Base; 2. Laser rust remover; 3. Swing arm; 31. Connecting frame; 4. Swing mechanism; 41. Swing motor; 42. Rotating arm; 43. Rotating shaft two; 44. Rotating shaft three; 45. Connecting rod; 5. Vertical plate; 6. Lifting mechanism; 61. Lifting motor; 62. Synchronous pulley; 63. Synchronous belt; 64. Lifting frame; 65. Mounting plate; 66. Slide rail; 67. 7. U-shaped groove; 8. Pressure sensor; 9. Extrusion mechanism; 10. Gear 1; 2. Gear 2; 3. Rack; 4. Guide post; 5. Extension plate; 6. Fixing block; 7. Telescopic rod; 88. Pressure plate; 99. Return spring 1; 10. Triangular slider; 11. Triangular extrusion block; 12. Triggering mechanism; 13. Drive column; 14. Arc-shaped slider; 15. Spacer; 16. Return spring 2; 17. Limiting plate; 18. Arc-shaped rack. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Please see Figure 1-5 The present invention provides a technical solution: a rust removal device for the hull of a large ship, including a fixed plate 1 and a laser rust remover 2 for rust removal. A swing arm 3 is rotatably installed in the middle of the upper end of the fixed plate 1. A rotating shaft 12 is provided in the middle of the upper end of the fixed plate 1. The middle of the swing arm 3 is rotatably connected to the rotating shaft 12. The swing arm 3 is controlled to swing back and forth on the fixed plate 1 by a swing mechanism 4.

[0039] The swing mechanism 4 includes a swing motor 41 installed at the bottom of the fixed plate 1. The output end of the swing motor 41 is fixedly connected to a rotating arm 42. The upper end of the rotating arm 42 is provided with a second rotating shaft 43. The upper end of the swing arm 3 is provided with a third rotating shaft 44. The third rotating shaft 44 and the second rotating shaft 43 are connected by a connecting rod 45, and the two ends of the connecting rod 45 are rotatably connected to the third rotating shaft 44 and the second rotating shaft 43 respectively.

[0040] When using the laser rust remover 2 to remove rust from the ship's hull, the laser rust remover 2 needs to be swung back and forth. The swaying mechanism 4 can replace manual swaying. During operation, the swaying motor 41 drives the rotating arm 42 to rotate. Through the connecting rod 45, the middle part of the swing arm 3 can rotate on the rotating shaft 12 at the upper end of the fixed plate 1, causing the swing arm 3 to swing. The rotating arm 42 rotates once, causing the swing arm 3 to make one sway, that is, the swing arm 3 swings twice.

[0041] A vertical plate 5 is provided on one side of the fixed plate 1, and one end of the swing arm 3 extends to the outside of the fixed plate 1. A connecting frame 31 is provided at one end of the swing arm 3. The connecting frame 31 is fixedly connected to the middle of the vertical plate 5. The laser rust remover 2 is installed on the vertical plate 5, and the laser rust remover 2 is controlled to descend or rise in stages on the vertical plate 5 by the lifting mechanism 6.

[0042] The lifting mechanism 6 includes two synchronous wheels 62 rotatably mounted at the upper and lower ends of the vertical plate 5 and a lifting motor 61 for driving the synchronous wheels 62 to rotate. The two synchronous wheels 62 are connected by a synchronous belt 63. The vertical plate 5 is slidably connected to a lifting frame 64, which is fixedly connected to the synchronous belt 63. The laser rust remover 2 is fixedly mounted on the lifting frame 64. The lifting frame 64 includes a mounting plate 65 for mounting the laser rust remover 2. A slide rail 66 is provided on one side of the vertical plate 5. The lifting frame 64 is slidably connected to the slide rail 66. A U-shaped groove 67 is provided on the back of the mounting plate 65. The U-shaped groove 67 passes through two through slots of the vertical plate 5 and is fixedly connected to the synchronous belt 63.

[0043] In this process, after the laser rust remover 2 swings once to remove rust from the hull, it needs to descend a certain height to remove rust from the next layer. Therefore, the lifting mechanism 6 can control the laser rust remover 2 to descend a certain height to remove rust from the next layer. During operation, the lifting motor 61 drives the synchronous wheel 62 to rotate, causing the synchronous belt 63 to move, which in turn causes the lifting frame 64 fixed on the synchronous belt 63 to descend. This causes the laser rust remover 2 mounted on the lifting frame 64 to descend a certain distance. After the laser rust remover 2 descends a certain distance, the swing mechanism 4 drives the laser rust remover 2 to swing once again, so that the rust removal work can continue. The descent distance of the laser rust remover 2 can be set according to the range of rust removal, so that the rust removal range of this layer can be connected to the rust removal marks of the upper layer, preventing rust from being missed.

[0044] A pressure sensor 7 is provided on the outside of the fixed disk 1. A pressure plate 88 for squeezing the pressure sensor 7 is provided on one side of the pressure sensor 7. The pressure plate 88 is controlled by the squeezing mechanism 8 to squeeze or leave the pressure sensor 7. A C-shaped groove 11 is provided on the fixed disk 1. A trigger mechanism 9 for driving the squeezing mechanism 8 is provided in the C-shaped groove 11. When the swing arm 3 swings once, the trigger mechanism 9 drives the squeezing mechanism 8 to run once, so that the pressure plate 88 squeezes the pressure sensor 7.

[0045] The pressure sensor 7 is electrically connected to a PLC controller for controlling the operation of the lifting mechanism 6 and the swing mechanism 4. When the pressure sensor 7 is squeezed once, the PLC controller controls the lifting mechanism 6 to drive the laser rust remover 2 to descend a certain distance. Then the swing mechanism 4 drives the laser rust remover 2 to swing once to remove rust. When the laser rust remover 2 descends to the bottom of the vertical plate 5, the pressure sensor 7 is squeezed again. The PLC controller controls the lifting mechanism 6 to drive the laser rust remover 2 to rise to the top of the vertical plate 5.

[0046] The fixed plate 1 has a vertical pipe 13 at its bottom, and a base 14 at its bottom. When using the equipment, the distance between the laser rust remover 2 and the hull is determined according to the equipment parameters. Then, the base 14 is fixed to the lifting device, and the equipment is started. At this time, the laser rust remover 2 is located at the top of the vertical plate 5, and the swing arm 3 is located at one end of the C-shaped groove 11, meaning the swing arm 3 is in an inclined state. The swing mechanism 4 operates. When the rotating arm 42 rotates half a circle, the swing arm 3 swings once, and the vertical plate 5 swings once with the swing arm 3. The laser rust remover 2 can perform one rust removal operation on the hull. After the rotating arm 42 has rotated half a circle, the trigger mechanism 9 in the C-shaped groove 11 will trigger the pressing mechanism 8 to operate once, causing the pressure plate 88 to press the pressure sensor. Device 7, driven by a PLC controller, operates a lifting motor 61. The lifting mechanism 6 causes the laser rust remover 2 to descend a short distance, while the swing mechanism 4 continues to operate, causing the laser rust remover 2 to swing again and continue removing rust from the hull. This process is repeated to continuously remove rust from the hull from top to bottom. When the laser rust remover 2 descends to the bottom of the vertical plate 5, the PLC controller stops the swing mechanism 4, and the lifting mechanism 6 drives the laser rust remover 2 to rise to the top of the vertical plate 5. At the same time, the lifting equipment descends, causing the entire device to descend as well. When the lifting equipment stops, the next round of rust removal can begin. This automation replaces manual rust removal, improving efficiency and saving manpower.

[0047] The extrusion mechanism 8 includes two gears 81 rotatably mounted on the upper end of the fixed disk 1, and the two gears 81 are symmetrically arranged on the outside of the C-shaped groove 11. The two gears 81 are simultaneously meshed with a gear 82, and the gear 82 is located on the line of symmetry between the two gears 81. The gear 82 is meshed with a rack 83, and the rack 83 has guide posts 84 at both ends. An extension plate 85 is provided on the outer diameter of the fixed disk 1. The guide posts 84 are slidably connected to the brackets on both sides of the extension plate 85. A fixing block 86 is provided on the upper end of the extension plate 85, and the fixing block 86 slides on the extension plate 85. A telescopic rod 87 is connected, and a pressure plate 88 is located at one end of the telescopic rod 87 and corresponds to the pressure sensor 7. A reset spring 89 for resetting the pressure plate 88 is sleeved on the outside of the telescopic rod 87. A triangular slider 810 is provided at the other end of the telescopic rod 87. Two triangular pressing blocks 811 are provided on one side of the rack 83. The triangular slider 810 is located in the middle of the two triangular pressing blocks 811. When the rack 83 moves, both triangular pressing blocks 811 can press the triangular slider 810, so that the pressure plate 88 contacts the pressure sensor 7.

[0048] The triggering mechanism 9 includes an arc-shaped slider 92 located inside the C-shaped groove 11. The bottom of the swing arm 3 is provided with two drive columns 91 for driving the arc-shaped slider 92. The drive columns 91 are located inside the C-shaped groove 11 and are slidably connected to the C-shaped groove 11. A partition block 93 is provided in the middle of the inner side of the C-shaped groove 11. A reset spring 94 is provided on both sides of the partition block 93 for resetting the arc-shaped slider 92. Two limiting plates 95 are provided at the upper end of the C-shaped groove 11 for limiting the two arc-shaped sliders 92 respectively. Arc-shaped racks 96 are provided at the upper end of the two arc-shaped sliders 92. The two arc-shaped racks 96 correspond to two gears 81 respectively, and the two arc-shaped racks 96 do not contact the two gears 81. When the drive column 91 drives the arc-shaped slider 92 to slide, one of the arc-shaped racks 96 meshes with the gear 81 and drives the gear 81 to rotate.

[0049] During the swing of the swing arm 3, both drive posts 91 at the bottom of the swing arm 3 slide in an arc within the C-shaped groove 11. Near the end of one swing, one of the drive posts 91 pushes the arc-shaped slider 92 to slide within the C-shaped groove 11, compressing the second return spring 94. Simultaneously, the arc-shaped rack 96 contacts and meshes with gear 81. The arc-shaped slider 92 continues to slide, and the arc-shaped rack 96 drives gear 81 to rotate, causing gear 82 to rotate. (Both gears 81 are meshed with gear 82. Although both gears 81 rotate, the other arc-shaped rack 96 does not contact gear 81, thus not affecting the operation of the pressing mechanism 8). This causes the rack 83 to move to one side, causing one of the triangular pressing blocks 811 on the rack 83 to press the triangular slider 810, thus... When the triangular slider 810 is displaced, the return spring 89 is compressed, and the pressure plate 88 is pressed against the pressure sensor 7 via the telescopic rod 87. After the pressure sensor 7 is compressed, the PLC controller sends a signal to the lifting mechanism 6 and the swing mechanism 4, so that the lifting mechanism 6 and the swing mechanism 4 can make corresponding responses. That is, the lifting mechanism 6 drives the laser rust remover 2 to descend or rise, and the swing mechanism 4 stops or continues to run. When the swing arm 3 drives the drive column 91 to return, the return spring 89 and the return spring 94 both rebound, causing the pressure plate 88 to leave the pressure sensor 7 and the arc rack 96 to leave the gear 81. After the swing arm 3 finishes swinging for the second time, another drive column 91 drives another trigger mechanism 9 to run, so that the pressing mechanism 8 presses the pressure sensor 7 again, thus performing reciprocating work.

[0050] The working principle and usage process of this invention are as follows: During use, the distance between the laser rust remover 2 and the ship's hull is determined according to the equipment parameters. Then, the base 14 is fixed to the lifting device, and the device is started. At this time, the laser rust remover 2 is located at the top of the vertical plate 5, and the swing arm 3 is located at one end of the C-shaped groove 11, i.e., the swing arm 3 is in an inclined state. The swing mechanism 4 operates. When the rotating arm 42 rotates half a circle, the swing arm 3 swings once, and the vertical plate 5 swings once with the swing arm 3. The laser rust remover 2 can perform one rust removal operation on the ship's hull. After the rotating arm 42 has rotated half a circle, the triggering mechanism 9 in the C-shaped groove 11 will trigger the pressing mechanism 8 to operate once, causing the pressure plate 88 to press the pressure sensor 7. This is controlled by the PLC. The controller drives the lifting motor 61 to operate, and the lifting mechanism 6 causes the laser rust remover 2 to descend a certain distance instantly. The swing mechanism 4 continues to operate, causing the laser rust remover 2 to swing again to continue removing rust from the hull. This process is repeated to continuously remove rust from the hull from top to bottom. When the laser rust remover 2 descends to the bottom of the vertical plate 5, the swing mechanism 4 is stopped by the PLC controller, and the lifting mechanism 6 drives the laser rust remover 2 to rise to the top of the vertical plate 5. At the same time, the lifting equipment descends, causing the entire device to descend as well. When the lifting equipment stops, the next round of rust removal can continue. By automating rust removal, manual rust removal is replaced, improving efficiency and saving manpower.

[0051] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rust removal device for the hull of a large ship, comprising a fixed plate (1) and a laser rust remover (2) for rust removal, characterized in that: A swing arm (3) is rotatably mounted on the upper middle part of the fixed disk (1), and the swing arm (3) is controlled to swing back and forth on the fixed disk (1) by a swing mechanism (4); The fixed plate (1) has a vertical plate (5) on one side, and the laser rust remover (2) is installed on the vertical plate (5). The laser rust remover (2) is controlled to descend or rise in stages on the vertical plate (5) by the lifting mechanism (6). A pressure sensor (7) is provided on the outside of the fixed plate (1), and a pressure plate (88) for squeezing the pressure sensor (7) is provided on one side of the pressure sensor (7). The pressure plate (88) is controlled to squeeze or leave the pressure sensor (7) by the squeezing mechanism (8). The fixed plate (1) is provided with a C-shaped groove (11), and a triggering mechanism (9) for driving the extrusion mechanism (8) is provided in the C-shaped groove (11); When the swing arm (3) swings once, the trigger mechanism (9) drives the extrusion mechanism (8) to run once, so that the pressure plate (88) extrudes the pressure sensor (7); The pressure sensor (7) is electrically connected to a PLC controller for controlling the operation of the lifting mechanism (6) and the swing mechanism (4); When the pressure sensor (7) is squeezed once, the PLC controller controls the lifting mechanism (6) to drive the laser rust remover (2) to descend a certain distance. Then the swing mechanism (4) drives the laser rust remover (2) to swing once to remove rust. When the laser rust remover (2) descends to the bottom of the vertical plate (5), the pressure sensor (7) is squeezed, and the PLC controller controls the lifting mechanism (6) to drive the laser rust remover (2) to rise to the top of the vertical plate (5).

2. A rust removal device for the hull of a large ship according to claim 1, characterized in that: The extrusion mechanism (8) includes two gears (81) rotatably mounted on the upper end of the fixed disk (1), and the two gears (81) are symmetrically arranged on the outside of the C-shaped groove (11). The two gears (81) are simultaneously meshed with gears (82), and gears (82) are located on the line of symmetry of the two gears (81). The gear 2 (82) is meshed with a rack (83), and the rack (83) has guide posts (84) at both ends. The outer diameter of the fixed disk (1) is provided with an extension plate (85), and the guide posts (84) are slidably connected to the brackets on both sides of the extension plate (85). The upper end of the extension plate (85) is provided with a fixing block (86), and a telescopic rod (87) is slidably connected on the fixing block (86). The pressure plate (88) is located at one end of the telescopic rod (87), and the pressure plate (88) corresponds to the pressure sensor (7). A reset spring (89) for resetting the pressure plate (88) is sleeved on the outside of the telescopic rod (87). The telescopic rod (87) is provided with a triangular slider (810) at the other end, and two triangular extrusion blocks (811) are provided on one side of the rack (83), with the triangular slider (810) located in the middle of the two triangular extrusion blocks (811); When the rack (83) moves, both triangular pressing blocks (811) can press the triangular slider (810) so that the pressure plate (88) contacts the pressure sensor (7).

3. A rust removal device for the hull of a large ship according to claim 2, characterized in that: The triggering mechanism (9) includes an arc-shaped slider (92) located inside the C-shaped groove (11). The bottom of the swing arm (3) is provided with two drive columns (91) for driving the arc-shaped slider (92). The drive columns (91) are located inside the C-shaped groove (11) and are slidably connected to the C-shaped groove (11). The C-shaped groove (11) has a partition (93) in the middle of its inner side, and the partition (93) has a second reset spring (94) on both sides for resetting the arc-shaped slider (92); The upper end of the C-shaped groove (11) is provided with two limiting plates (95) for limiting the two arc-shaped sliders (92); Both of the two arc-shaped sliders (92) are provided with arc-shaped racks (96) at their upper ends. The two arc-shaped racks (96) correspond to the two gears (81) respectively, and the two arc-shaped racks (96) do not contact the two gears (81). When the drive column (91) drives the arc-shaped slider (92) to slide, one of the arc-shaped racks (96) meshes with the gear (81) and drives the gear (81) to rotate.

4. A rust removal device for the hull of a large ship according to claim 1, characterized in that: The lifting mechanism (6) includes two synchronous wheels (62) rotatably mounted on the upper and lower ends of the vertical plate (5) and a lifting motor (61) for driving the synchronous wheels (62) to rotate. The two synchronous wheels (62) are connected by a synchronous belt (63). The vertical plate (5) is slidably connected to a lifting frame (64), the lifting frame (64) is fixedly connected to a synchronous belt (63), and the laser rust remover (2) is fixedly installed on the lifting frame (64).

5. A rust removal device for the hull of a large ship according to claim 4, characterized in that: The lifting frame (64) includes a mounting plate (65) for mounting the laser rust remover (2). A slide rail (66) is provided on one side of the vertical plate (5). The lifting frame (64) is slidably connected to the slide rail (66) up and down. A U-shaped groove (67) is provided on the back of the mounting plate (65). The U-shaped groove (67) passes through two through slots of the vertical plate (5) and is fixedly connected to the synchronous belt (63).

6. A rust removal device for the hull of a large ship according to claim 1, characterized in that: The swing mechanism (4) includes a swing motor (41) installed at the bottom of the fixed plate (1). The output end of the swing motor (41) is fixedly connected to a rotating arm (42). The upper end of the rotating arm (42) is provided with a second rotating shaft (43). The upper end of the swing arm (3) is provided with a third rotating shaft (44). The third rotating shaft (44) and the second rotating shaft (43) are connected by a connecting rod (45), and the two ends of the connecting rod (45) are rotatably connected to the third rotating shaft (44) and the second rotating shaft (43) respectively.

7. A rust removal device for the hull of a large ship according to claim 1, characterized in that: One end of the swing arm (3) extends to the outside of the fixed plate (1), and one end of the swing arm (3) is provided with a connecting frame (31), which is fixedly connected to the middle of the vertical plate (5).

8. A rust removal device for the hull of a large ship according to claim 1, characterized in that: The fixed disk (1) has a rotating shaft (12) at the middle of its upper end, and the middle of the swing arm (3) is rotatably connected to the rotating shaft (12).

9. A rust removal device for the hull of a large ship according to claim 1, characterized in that: The bottom of the fixed plate (1) is provided with a riser (13), and the bottom of the riser (13) is provided with a base (14). The base (14) is fixed to the lifting equipment during use.

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