Marine maintenance device
By designing a marine maintenance device including cages, hangers, maintenance arms and trestles, the problem of ships not being able to be effectively maintained during operation is solved, and comprehensive maintenance and maintenance is achieved, which reduces maintenance costs and improves operational efficiency.
Patent Information
- Application Number
- CN202411655416.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-19
- Publication Date
- 2025-05-23
AI Technical Summary
During the operation of the ship, the outer plate and the mechanical equipment of the head and tail of the hull are damaged or malfunctioned due to irresistible external forces, and due to the large change in curvature, it is impossible to effectively repair during the operation, resulting in high maintenance costs and long cycles.
A marine maintenance device is designed, including a cage, a hanger, an inspection arm and a trestle. The hanger slides along the length of the boat. The cage can be lifted up and down, the maintenance arm can be retracted, and the trestle can extend to the outer plate of the side. Through the coordinated work of these components, all-round maintenance and maintenance of the hull can be achieved.
The device can perform multi-purpose and complex maintenance operations during ship operation, reduce maintenance costs, improve operational efficiency, and ensure the safety of operators' lives.
Smart Images
Figure CN120024471A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of shipbuilding, and in particular relates to a ship repair device. Background Art
[0002] During the operation of a ship, the hull plating and bow and stern mechanical equipment are often damaged or malfunctioned due to irresistible external forces. Due to the large change in the curvature of the bow and stern of the ship, they cannot be repaired, and the cost of docking or repair is high and the cycle is long. The maintenance cage proposed in the present invention can be used as an auxiliary tool for auxiliary maintenance operations of the hull plating and bow and stern machinery. The maintenance cage can be constructed during the operation of the ship and can reach the entire ship through the maintenance arm. It is suitable for operation requirements in multiple scenarios and complex working conditions, supplements the auxiliary mechanical equipment in the field of ship maintenance, reduces the maintenance cost of the ship, and improves the operation efficiency of the ship. Summary of the invention
[0003] In view of the above problems, the present invention provides a marine maintenance device.
[0004] To achieve the above object, the present invention adopts the following technical solution: A ship maintenance device comprises a cage, a hanger, an maintenance arm and a pier, wherein the hanger is placed on the hull structure in a sliding manner along the length direction of the ship, the hanger is located on the outside of the side outer plate, the cage is arranged directly below the hanger, the cage can be raised and lowered relative to the hanger, one end of the maintenance arm is connected to two sides of the cage perpendicular to the length direction of the ship, the pier is stored under the cage and can be extended toward the side outer plate.
[0005] Furthermore, the hanger can be slidably placed on the side outer plate, and the hanger includes a hanging wall, a plurality of hanging beams and an operating platform. The hanging wall can be slidably placed on the upper end surface of the side outer plate, and a plurality of the hanging beams are mirror-symmetrically and vertically fixed on the outer side surface of the hanging wall. The operating platform is fixed on the inner side surface of the hanging wall. The operating platform can be slidably arranged on the deck, and the operating platform drives the hanging wall to slide on the side outer plate along the length direction of the ship.
[0006] Furthermore, the maintenance device also includes at least two remote controllers and at least one motor, at least one of the motors is arranged on an operating platform, at least one tire is connected to the operating platform, the output shaft of at least one of the motors is connected to the tire through a bearing passing through the tire, two of the remote controllers are respectively placed on the operating platform and the side wall of the cage, and the motors are both electrically connected to the remote controllers.
[0007] Furthermore, an inverted U-shaped groove extending upward from the middle of its lower end face is provided on the hanging wall, the upper end of the side outer plate is inserted into the inverted U-shaped groove of the hanging wall, and a plurality of tires are connected at the bottom of the inverted U-shaped groove through a plurality of bearings, and the tires are placed on the upper end face of the side outer plate; the width of the inverted U-shaped groove is greater than the thickness of the side outer plate, and a plurality of spherical rollers are provided between the inner side walls on both sides of the inverted U-shaped groove and the side walls on both sides of the side outer plate, and the spherical rollers are rotatably embedded in the inner side walls of the inverted U-shaped groove; a plurality of butterfly valves for fixing the hanging wall are screwed on both side walls of the inverted U-shaped groove, and the butterfly valves on both sides of the inverted U-shaped groove are arranged in a mirror-symmetrical manner; the butterfly valve is composed of a steel valve body and an end rubber block, and the end in contact with the side outer plate is the end rubber block Furthermore, a cable reel platform is fixed on the end of the hanger beam away from the hanging wall, and a cable reel is fixed on the cable reel platform. The cable reel is connected to the two sides of the top of the cage through two steel cables, and the cable reel is connected to the remote control by telecommunication. The cage is provided with a plurality of spherical rollers on the outer wall on the side close to the side outer plate, and the spherical rollers are close to the vertically extending side outer plate.
[0008] Furthermore, the maintenance arm includes a rotating arm, a telescopic arm, two arm cables and a connecting electromagnet. One end of the rotating arm is rotatably connected to the cage body, and the rotating arm can rotate in the horizontal direction. The other end of the rotating arm is connected to the fixed end of the telescopic arm by a fastening bolt; the connecting electromagnet is rotatably connected to the telescopic end of the telescopic arm, and the telescopic arm drives the connecting electromagnet to extend and retract in a direction perpendicular to the vertical side outer plate; a group of arm cable fixing rings are symmetrically provided on the left and right sides of the side wall of the cage body close to the side outer plate, and a group of arm cable pulleys are fixed directly above the arm cable fixing rings, one end of the two arm cables is respectively fixed to an arm cable fixing ring, and the other end extends upward to bypass the arm cable pulley and is fixedly connected to the telescopic end of the telescopic arm.
[0009] Furthermore, the telescopic arm includes a plurality of telescopic tubes with decreasing inner diameters and outer diameters in sequence, and the plurality of telescopic tubes are telescopically connected in sequence from the cage body toward the direction of the ship in the order of the inner diameter from large to small. In the two telescopically connected telescopic tubes, a limit spring sleeve is provided at the connecting end of the small-diameter telescopic tube and the large-diameter telescopic tube, and the limit spring sleeve is vertically fixed to the inside of the small-diameter telescopic tube. A limit spring that is telescopically extended and retracted along the axial direction of the limit spring sleeve is fixed to the lower part of the limit spring sleeve, and a limit rod is connected above the limit spring, and the limit rod includes a round rod segment and a hemispherical segment The diameter of the round rod segment is the same as the diameter of the hemispherical segment, the end face of the free end of the limit rod is a hemispherical surface, and a small-diameter telescopic tube is vertically penetrated through the upper part of the limit rod. When the maintenance arm is extended, the end of the round rod segment away from the limit spring is located within the hollow cross-section of the large-diameter telescopic tube; among the multiple telescopic tubes, except for the telescopic tube with the largest diameter, at least two limit blocks are evenly distributed on the outer side walls of the ends of the remaining telescopic tubes close to the rotating arm, and limit blocks are provided on the outer side walls of the ends of the remaining telescopic tubes away from the rotating arm; each telescopic tube is provided with a limit ring in the port of the end away from the rotating arm.
[0010] Furthermore, a double bottom of the cage is provided below the cage, and the pier is accommodated in the double bottom of the cage; the pier includes a bridge body and two traction ropes, a fixing ring is provided at each of the two ends of the lower inner side of the two longitudinal walls of the cage, a traction rope fixing ring is fixed on the end face of the bridge body away from the ship, one end of the two traction ropes are respectively fixed to the two fixing rings, and the other ends of the two traction ropes are fixed to the traction rope fixing ring; a spherical roller is fixed on the side of the lower end face of the bridge body away from the bridge body, and the spherical roller is placed on the double bottom of the cage; a pulley is fixed on the upper end face of the double bottom of the cage close to the ship, a limit block is provided between the pulley and the spherical roller, and the limit block is fixed to the double bottom of the cage.
[0011] Furthermore, the pier also includes a folding handrail, which is arranged on both sides of the length direction of the upper end surface of the bridge body, and the folding handrail includes a cross bar, and a plurality of vertical bars are rotatably connected to the lower side surface of the cross bar, and the lower ends of the vertical bars are rotatably connected to the bridge body; a lock buckle extending vertically downward is provided on the lower side surface of the cross bar close to the cage body, and the lock buckle is located between the vertical bar closest to the cage body and the cage body, and a lock support perpendicular to the vertical bar is provided on the vertical bar closest to the cage body, and a lock groove is provided on the upper side surface of the lock support close to the lock buckle, and when the folding handrail is in use, the lower end of the lock buckle is inserted into the lock groove.
[0012] Furthermore, a flap is connected on the side of the bridge body that can be rotated 180° close to the ship, and a stop block is fixed on the lower end surface of the connecting end of the flap and the bridge body, one end of the stop block protrudes from the end of the flap close to the bridge body; and an anti-slip strip extending along the width direction is provided on the upper end surfaces of the bridge body and the flap.
[0013] The marine maintenance device of the present invention meets the multi-purpose and operational requirements of ships under complex working conditions through the cooperation of a vertically movable cage, a front-rear movable hanger and a retractable maintenance arm, thereby improving the operational efficiency of the ship, reducing the maintenance cost of the ship, and ensuring the life safety of operators. The device is simple to operate and is economical and practical. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a front view of the maintenance device described in the present invention.
[0015] Figure 2 It is a side view of the maintenance device described in the present invention.
[0016] Figure 3 It is a top view of the maintenance device described in the present invention.
[0017] Figure 4 It is a structural schematic diagram of the trestle described in the present invention.
[0018] Figure 5 yes Figure 1 AA direction view in.
[0019] Figure 6 It is a schematic diagram of the two states of extension and retraction of the inspection arm described in the present invention.
[0020] Figure 7 yes Figure 4 Enlarged schematic diagram of node C in the middle.
[0021] Figure 8 yes Figure 3 Enlarged schematic diagram of the D node diagram.
[0022] Among them, 1-deck, 2-side outer plate, 3-cage, 4-pier, 5-inspection arm, 6-hanging bracket, 7-motor, 8-remote control, 9-tire, 10-mirror L-shaped support frame, 11-bearing, 12-bracket, 13-locking cap, 14-spherical roller, 15-butterfly valve, 16-cable winder platform, 17-cable winder, 18-steel cable, 19-pulley, 20-mooring rope system, 21-motor pile, 22-anti-slip strip, 23-handheld electric suction cup, 24-safety rope, 25-spring limiter, 26-nylon protective net, 27-steel protective net, 28-double bottom of cage, 29- flap, 30- stop block, 31- hinge, 301- cage door, 32- material barrel, 33- cable, 34- handrail, 35- limiter, 36- bolt, 41- bridge body, 42- traction rope, 43- fixed ring, 44- traction rope fixed ring, 45- folding handrail, 46- lock, 47- lock support, 51- rotating arm, 52- telescopic arm, 53- arm cable, 54- electromagnet, 55- arm cable fixing ring, 56- arm cable pulley, 57- fastening bolt, 61- wall hanging, 62- bracket beam, 63- operating platform, 151- steel structure valve body, 152- end rubber block, 251- limit spring sleeve, 252- limit spring, 253- limit rod, 521- telescopic tube, 522- limit block, 523- limit ring. DETAILED DESCRIPTION
[0023] Embodiments of the present invention are described in detail below. The embodiments described below are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0024] like Figure 1 to Figure 8 As shown, a ship maintenance device includes a cage 3, a hanger 6, an maintenance arm 5 and a pier 4, wherein the hanger 6 is placed on the hull structure in a sliding manner along the length direction of the ship, the hanger 6 is located on the outside of the side outer plate 2, the cage 3 is arranged directly below the hanger 6, the cage 3 can be raised and lowered relative to the hanger 6, one end of the maintenance arm 5 is connected to two sides of the cage 3 perpendicular to the length direction of the ship, the telescopic end of the maintenance arm 5 can be detachably connected to the side outer plate 2, and the pier 4 is stored under the cage 3 and can be extended toward the side outer plate 2.
[0025] It can be understood that the movement of the bracket 6 drives the cage 3 to move along the length direction of the ship, and at the same time the cage 3 itself can be raised and lowered, thereby enabling the cage 3 to carry the maintenance personnel to any position of the ship's side outer plate 2 that requires maintenance; the provision of the maintenance arm 5 ensures that the maintenance personnel can use the maintenance arm 5 to reach the place where the curvature changes greatly at the bow and stern of the ship to operate.
[0026] In some embodiments, the hanger 6 can be slidably placed on the side outer plate 2, and the hanger 6 includes a hanging wall 61, a plurality of hanging beams 62 and an operating platform 63. The hanging wall 61 can be slidably placed on the upper end surface of the side outer plate 2, and a plurality of the hanging beams 62 are mirror-symmetrically fixed vertically on the outer surface of the hanging wall 61. The operating platform 63 is fixed on the inner surface of the hanging wall 61. The operating platform 63 can be slidably set on the deck 1, and the operating platform 63 drives the hanging wall 61 to slide on the side outer plate 2 along the length direction of the ship.
[0027] Specifically, the inspection device further includes at least two remote controllers 8 and at least one motor 7, at least one of the motors 7 is disposed on the operating platform 63, at least one tire 9 is connected to the operating platform 63, the output shaft of at least one of the motors 7 is connected to the tire 9 through a bearing 11 passing through the tire 9, two of the remote controllers 8 are respectively placed on the operating platform 63 and the side wall of the cage 3, and the motors 7 are both connected to the remote controllers 8 by telecommunication. In this embodiment, the number of the remote controllers 8 is 2, the number of the motors 7 is 2, the number of the bracket beams 62 is 2, the two bracket beams 62 are mirror-symmetrically disposed on the hanging wall 61, and a nylon protective net 26 is laid on the upper end surfaces of the two bracket beams 62.
[0028] It can be understood that the motor 7 drives the tire 9 to rotate and then drives the operating platform 63, the hanging wall 61 and the bracket beam 62 to move, and finally realizes the movement of the cage 3 along the length direction of the ship; the setting of the remote control 8 realizes the remote control of the motor 7.
[0029] In the present embodiment, the operating platform 63 includes a top plate, one side of which is fixedly connected to the inner side of the wall 61, a mirror image L-shaped support frame 10 is fixed to the side of the lower end face of the top plate away from the wall 61, two brackets 12 are arranged at intervals on the side of the mirror image L-shaped support frame 10 close to the wall 61, two motors 7 are symmetrically arranged on the mirror image L-shaped support frame 10, and the tire 9 is rotatably arranged between the two brackets 12 through a bearing 11, one end of the bearing 11 is passed through a bracket 12 and connected to the output shaft of the motor 7, and the other end is passed through another bracket 12 and limited by a locking cap 13. Of course, in other embodiments, the motor 7 can also be suspended on the lower end face of the operating platform 63 through a connecting piece, or the mirror image L-shaped support frame 10 can be replaced by a U-shaped support frame, and the output shaft of the motor 7 is passed through a side plate of the U-shaped support frame; the tire 9 can also be connected to the operating platform 63 in other structural forms, which are not specifically limited here.
[0030] In some embodiments, an inverted U-shaped groove extending upward from the middle of its lower end surface is provided on the hanging wall 61, the upper end of the side outer plate 2 is inserted into the inverted U-shaped groove of the hanging wall 61, and a plurality of tires 9 are connected at the bottom of the inverted U-shaped groove through a plurality of bearings 11, and the tires 9 are placed on the upper end surface of the side outer plate 2; the width of the inverted U-shaped groove is greater than the thickness of the side outer plate 2, and a plurality of spherical rollers 14 are provided between the inner side walls on both sides of the inverted U-shaped groove and the side walls on both sides of the side outer plate 2, which are spaced apart along the length direction of the ship, and the spherical rollers 14 are rotatably embedded in the inner side walls of the inverted U-shaped groove; a plurality of butterfly valves 15 for fixing the hanging wall 61 are screwed on both side walls of the inverted U-shaped groove, and the butterfly valves 15 on both sides of the inverted U-shaped groove are arranged in a mirror-symmetrical manner; the butterfly valve 15 is composed of a steel valve body 151 and an end rubber block 152, and the end in contact with the side outer plate 2 is the end rubber block 152.
[0031] Specifically, the terminal rubber block 152 is a cylindrical rubber block with the same diameter as the steel valve body 151. In the non-working state, the rubber is in the shape of a cylindrical block with a certain gap between it and the side outer plate 2; in the working state, the rubber is in the shape of a cylindrical block and is deformed into a flat shape and fits tightly with the side outer plate 2 under the extrusion of the steel valve body 151. The butterfly valve 15 does not damage the paint of the outer plate while being fastened to the wall 61. Of course, in other embodiments, the terminal rubber block 152 may not be a rubber block of other shapes, which is not specifically limited here. It can be understood that the lengths of the side arms of the inverted U-shaped groove located on both sides of the side outer plate 2 can be the same, or the length of the side wall of the inverted U-shaped groove located on the outside of the side outer plate 2 can be less than or greater than the length of the side arm of the inverted U-shaped groove located inside the side. In order to ensure the stability of the hanging wall 61 during the sliding process, in the present embodiment, the length of the side arm of the inverted U-shaped groove located on the outside of the side outer plate 2 is greater than the side arm of the inverted U-shaped groove located inside the side, and a plurality of the spherical rollers 14 are arranged in a straight line array on the inner side wall of the inverted U-shaped groove, wherein two rows of spherical rollers 14 are arranged at intervals in the upper and lower parts on the inner side wall of the inverted U-shaped groove located on the outside of the side outer plate 2, and a row of spherical rollers 14 is provided on the inner side wall of the inverted U-shaped groove located inside the side. By arranging the spherical rollers 14, the stability of the hanging wall 61 during the movement is further enhanced. In this embodiment, the butterfly valve 15 is disposed above the uppermost spherical roller 14 . By disposing the butterfly valve 15 , when the hanging wall 61 moves to the target position, the hanging wall 61 can be fixed by tightening the butterfly valve 15 .
[0032] Of course, in other embodiments, the number of rows of the spherical rollers 14 can be appropriately increased according to the situation, and the arrangement of the multiple spherical rollers 14 can be in other forms. For example, the spherical rollers 14 located on the same side of the side outer plate 2 are distributed in a serrated array, and at least one serrated array is arranged above and below.
[0033] In some embodiments, a cable reel platform 16 is fixed at one end of the hanger beam 62 away from the hanging wall 61, and a cable reel 17 is fixed on the cable reel platform 16. The cable reel 17 is connected to the two sides of the top of the cage body 3 through two steel cables 18, and the cable reel 17 is connected to the remote control 8 by telecommunication. The cage body 3 is provided with a plurality of spherical rollers 14 on the outer wall close to the side outer plate 2, and the spherical rollers 14 are close to the vertically extending side outer plate 2.
[0034] Specifically, a pulley 19 is fixed on the left and right sides of the lower end surface of the hanging beam 62 away from the hanging wall 61, and four pulleys 19 are arranged on the left and right sides of the top of the cage body 3. One end of the two steel cables 18 of the cable winding machine 17 passes through the pulleys 19 on the left and right sides of the hanging beam, and then extends downward to bypass the two pulleys 19 on the front and rear sides of the top of the cage body 3 in turn, and then extends upward to be fixed on the pulley 19 located on the lower end surface of the hanging beam 62 close to the hanging wall 61.
[0035] It can be understood that the cable reel 17 is opened and closed by the remote controller 8. When the cage 3 needs to rise, the cable reel 17 retracts the steel cable 18 to drive the cage 3 to rise. When the cage 3 needs to fall, the cable reel 17 rotates in the opposite direction. A plurality of spherical rollers 14 are provided on the outer wall of the cage 3 near the side outer plate 2. The spherical rollers 14 are close to the vertically extending side outer plate 2. The spherical rollers 14 slide along the side outer plate 2 to ensure the stability of the cage 3 during movement, and to prevent the cage 3 from sliding left and right during movement, which may cause a fall hazard to maintenance personnel.
[0036] In this embodiment, the cage body 3 is a rectangular cage body 3 structure surrounded by two horizontal wall frames, two vertical wall frames and a double-layer bottom plate. A nylon protective net 26 is laid on the top of the cage body 3, and a steel protective net 27 is fixed to the lower part of the four sides of the cage body 3. The double-layer bottom plate and the horizontal and vertical walls form a rectangular box, and an opening is opened on the vertical wall on the side of the side outer plate 2, and the opening size is slightly larger than the pier 4.
[0037] In some embodiments, the maintenance arm 5 includes a rotating arm 51, a telescopic arm 52, two arm cables 53 and a through electromagnet 54, one end of the rotating arm 51 is rotatably connected to the cage body 3, the rotating arm 51 can rotate in the horizontal direction, and the other end of the rotating arm 51 is connected to the fixed end of the telescopic arm 52 by a fastening bolt 57; the through electromagnet 54 is rotatably connected to the telescopic end of the telescopic arm 52, and the telescopic arm 52 drives the through electromagnet 54 to extend and retract in a direction perpendicular to the vertical side outer plate 2; a group of arm cable fixing rings 55 are symmetrically provided on the left and right sides of the side wall of the cage body 3 close to the side outer plate 2, and a group of arm cable pulleys 56 are fixed directly above the arm cable fixing rings 55, one end of the two arm cables 53 is respectively fixed to an arm cable fixing ring 55, and the other end extends upward to bypass the arm cable pulley 56 and is fixedly connected to the telescopic end of the telescopic arm 52.
[0038] Specifically, when the inspection arm 5 needs to be opened, the worker rotates the rotating arm 51 in the horizontal direction so that the telescopic arm 52 faces the side outer plate 2, then manually stretches the telescopic arm 52, adjusts the rotating arm 51 and the telescopic arm 52 so that the electromagnet 54 is close to the side outer plate, and tightens the fastening bolts 57 after power is turned on to end the operation; to close, loosen the bolts after power is turned off, manually release the spring limiter 25, and then retract the telescopic arm 52 section by section, rotate the rotating arm 51, so that the inspection arm 5 is close to the cage body 3, and then tighten the fastening bolts 57 to end the operation. The telescopic arm and the rotating arm are connected by the fastening bolts 57, on the one hand, to limit the movement of the rotating arm 51 and the telescopic arm 52, and on the other hand, to adjust the distance and angle between the telescopic arm 52 and the rotating arm 51.
[0039] It can be understood that in these embodiments, in order to shorten the length of the maintenance arm 5 and prevent the maintenance arm 5 from extending out of the side of the cage 3 close to the ship when the maintenance arm 5 is retracted, a rotating arm 51 is additionally provided on the basis of the telescopic arm 52, and the rotating arm 51 is connected to the side of the side wall of the cage 3 close to the ship. When the maintenance arm 5 is retracted, the telescopic arm 52 and the electromagnet 54 are rotated 180° to the left and right sides of the cage 3 by rotating the rotating arm 51; when the electromagnet 54 is extended to contact the side outer plate 2, the electromagnet 54 is magnetically attracted to the side outer plate 2, which can fix the cage 3 on the one hand to prevent the cage 3 from shaking and causing a risk of falling to the maintenance personnel, and on the other hand, the maintenance personnel can use the arm cable 53 to slide to the side outer plate 2 that needs to be inspected, and provide support for the maintenance personnel.
[0040] Specifically, when working in the vertical area, one person can work, and there is no need to open the inspection arm 5 and the cage door 301. The operation can be carried out directly after reaching the target point. The driving motor 7 moves the inspection device to the target point, tightens the butterfly valve 15, ties the mooring rope 20 to the mooring pile 21, and then drives the cable winder 17 to release the steel cable 18. The cage body 3 moves vertically to the target site, and the handheld electric suction cup 23 is adsorbed on the side outer plate 2. Then, the cage body 3 is connected with a rope to start the operation. After the operation is completed, the rope and the handheld electric suction cup 23 are removed, and the cable winder 17 is driven back to the deck 1.
[0041] When working at a place where the curvature of the bow and stern of the ship changes greatly, it is best to have two people working at the same time, place the hanging wall 61 on the side outer plate 2, move the cage 3 to the side, drive the motor 7 to move the maintenance device to the target point, tighten the butterfly valve 15, tie the mooring rope 20 to the mooring pile 21, and then drive the cable winder 17 to release the steel cable 18, and move the cage 3 vertically to the target location. After manually operating the safety rope 24, open the cage door 301, pull out and open the pier 4, and operate the rotating arm 51. The telescopic arm 52 is pulled out so that the electromagnet 54 is attached to the hull outer plate 2. After power is turned on, the magnet is adsorbed on the hull outer plate 2. The personnel hang the safety rope 24 on the arm cable 53, the cage 3 and the personnel's hand respectively, and then slide to the end of the telescopic arm 52. Then, the personnel hold the electric suction cup 23 in both hands and adsorb it on the outer surface of the hull outer plate 2 and gradually move to the target point, then fix the hand-held electric suction cup 23 and the safety rope 24, and start the operation. During the operation, the required items can be slid by colleagues through the safety rope 24. After the operation is completed, the hand-held electric suction cup 23 is removed, and the safety rope 24 is manually operated to return to the pier 4, the pier 4 is folded and the cage door 301 is closed. After the power is turned off, the maintenance arm 5 is retracted and reset, and the cable winder 17 is driven back to the deck 1.
[0042] In this embodiment, the telescopic arm 52 includes a plurality of telescopic tubes 521 with decreasing inner diameters and outer diameters in sequence. The plurality of telescopic tubes 521 are telescopically connected in sequence from the cage body 3 toward the ship in the order of inner diameters from large to small. In the two telescopically connected telescopic tubes 521, a spring limiter 25 is provided at the connecting end of the telescopic tube 521 with a small diameter and the telescopic tube 521 with a large diameter. The spring limiter 25 includes a limit spring sleeve 251, and the limit spring sleeve 251 is vertically fixed to the inside of the telescopic tube 521 with a small diameter. A limit spring 252 that is telescopically extended and retracted along the axial direction of the limit spring sleeve 251 is fixed at the lower part of the limit spring sleeve 251. A limit rod 253 is connected above the limit spring 252. The limit rod 253 It includes a round rod section and a hemispherical section, the diameter of the round rod section is the same as the diameter of the hemispherical section, the end face of the free end of the limiting rod 253 is a hemispherical surface, and a telescopic tube 521 with a small diameter is vertically penetrated through the upper part of the limiting rod 253. When the maintenance arm 5 is extended, the end of the round rod section away from the limiting spring 252 is located within the hollow cross-section of the telescopic tube 521 with a large diameter; among the multiple telescopic tubes 521, except for the telescopic tube 521 with the largest diameter, at least two limiting blocks 522 are evenly distributed on the outer side wall of one end of each of the remaining telescopic tubes 521 close to the rotating arm 51, and a limiting block 522 is provided on the outer side wall of one end of each of the remaining telescopic tubes 521 away from the rotating arm 51; a limiting ring 523 is provided in the port of one end of each telescopic tube 521 away from the rotating arm 51.
[0043] It is understandable that when the telescopic arm 52 is extended, under external tension, multiple telescopic tubes 521 are extended in sequence. When the telescopic arm 52 needs to be retracted, since the hemispherical section of the limit rod 253 is located within the hollow cross-section of the telescopic tube 521 with a large diameter, and the lower end of the limit rod 253 is connected to the limit spring 252, under external thrust, the upper end surface of the limit rod 253 moves downward until the limit rod 253 is completely moved into the telescopic tube 521 with a large diameter. At this time, under the upward thrust of the limit spring 252, the upper end of the limit rod 253 abuts against the inner wall of the telescopic tube 521 with a large diameter, so that the telescopic tube 521 with a small diameter is fixed in the telescopic tube 521 with a large diameter. The setting of the limit block 522 can prevent the telescopic tube 521 with a small diameter from falling off when extending and from retracting into the telescopic tube 521 with a large diameter when retracting. A stopper block 522 is added to the outer wall of each telescopic tube end, and a stopper ring 523 is provided to prevent the small-diameter telescopic tube 521 from being pulled out. In some embodiments, a cage double bottom 28 is provided below the cage body 3, and the pier 4 is accommodated in the cage double bottom 28; the pier 4 includes a bridge body 41 and two traction ropes 42, a fixing ring 43 is provided at each end of the lower inner side of the two longitudinal walls of the cage body 3, a traction rope fixing ring 44 is fixed on the end face of the bridge body 41 away from the ship, one end of the two traction ropes 42 is respectively fixed on the two fixing rings 43, and the other ends of the two traction ropes 42 are fixed on the traction rope fixing rings 44 bridge body 41 traction rope 42 traction rope 42 traction rope 42; a spherical roller 14 is fixed on the side of the lower end face of the bridge body 41 away from the bridge body 41, and the spherical roller 14 is placed on the cage double bottom 28; a pulley 19 is fixed on the upper end face of the cage double bottom 28 close to the ship, and a limiter 35 is provided between the pulley 19 and the spherical roller 14, and the limiter 35 is fixed on the cage double bottom 28.
[0044] It is understandable that when the trestle 4 needs to be pulled out, the maintenance personnel pull the traction rope 42 on the side of the cage 3 close to the ship, and wrap the pulled traction rope 42 around the fixed ring 43 at the lower end of the inner side of the cage longitudinal wall. When the trestle 4 needs to be folded up, the maintenance personnel pull the traction rope 42 on the side of the cage 3 far from the ship, and pull the trestle 4 into the double bottom of the cage 3. The setting of the pulley 19 and the spherical roller 14 reduces the friction between the bridge body 41 and the double bottom of the cage 3, making it easier to pull out the trestle 4; the setting of the limiter 35 avoids the danger that the bridge body 41 will not be pulled out excessively, resulting in an unstable connection between the trestle 4 and the cage 3 or even detachment from the cage 3.
[0045] Of course, in other embodiments, other forms of moving the trestle 4 may be adopted, for example, a pushing point is provided at the outer end of the trestle 4, and the trestle 4 is pushed out by a pushing rod.
[0046] In this embodiment, the pier 4 also includes a folding handrail 45, and the folding handrail 45 is arranged on both sides of the length direction of the upper end surface of the bridge body 41, and the folding handrail 45 includes a cross bar, and a plurality of vertical bars are rotatably connected to the lower side surface of the cross bar, and the lower ends of the vertical bars are rotatably connected to the bridge body 41; a lock buckle 46 extending vertically downward is provided on the lower side surface of the cross bar close to the cage body 3, and the lock buckle 46 is located between the vertical bar closest to the side of the cage body 3 and the cage body 3, and a lock support 47 perpendicular to the vertical bar is provided on the vertical bar closest to the side of the cage body 3, and a lock groove is provided on the upper side surface of the lock support 47 close to the lock buckle 46. When the folding handrail 45 is in use, the lock groove moves with the vertical bar to just below the lock buckle 46, and the lower end of the lock buckle 46 is inserted into the lock groove.
[0047] It can be understood that the provision of the foldable handrail 45 ensures that the maintenance personnel are not likely to fall when on the trestle 4.
[0048] In some embodiments, a flap 29 is connected to the bridge body 41 on the side close to the ship and can be rotated 180° through a hinge 31. A stop block 30 is fixed on the lower end surface of the connecting end of the flap 29 and the bridge body 41, and one end of the stop block protrudes from the end of the flap 29 close to the bridge body 41; an anti-slip strip 22 extending along the width direction is provided on the upper end surfaces of the bridge body 41 and the flap 29.
[0049] It can be understood that when the required length of the bridge body 41 is greater than the length of the double bottom of the cage body 3, the setting of the flap 29 can well solve the storage problem of the bridge body 41. When the trestle 4 is folded, the flap 29 is flipped 180° and moved to the top of the bridge body 41. When the trestle 4 is used, the flap 29 is flipped 180° in the opposite direction to make it flush with the bridge body 41. At the same time, the setting of the stop block 30 on the flap 29 further ensures the stability of the flap 29 when the trestle 4 is in use; the setting of the anti-slip strips 22 on the bridge body 41 and the flap 29 prevents the maintenance personnel from slipping and falling.
[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications and substitutions may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.
Claims
1. A marine maintenance device, characterized in that: The invention comprises a cage, a hanger, an inspection arm and a pier, wherein the hanger is placed on the hull structure in a sliding manner along the length direction of the ship, the hanger is located on the outside of the side outer plate, the cage is arranged directly below the hanger, and the cage can be raised and lowered relative to the hanger, one end of the inspection arm is connected to two sides of the cage perpendicular to the length direction of the ship, the pier is stored under the cage and can be extended toward the side outer plate.
2. A marine maintenance device according to claim 1, characterized in that: The hanger can be slidably placed on the side outer plate, and the hanger includes a hanging wall, a plurality of hanging beams and an operating platform. The hanging wall can be slidably placed on the upper end surface of the side outer plate, and a plurality of the hanging beams are vertically fixed on the outer side surface of the hanging wall in a mirror-symmetrical manner. The operating platform is fixed on the inner side surface of the hanging wall. The operating platform can be slidably arranged on the deck, and the operating platform drives the hanging wall to slide on the side outer plate along the length direction of the ship.
3. A marine maintenance device according to claim 2, characterized in that: The maintenance device also includes at least two remote controllers and at least one motor, at least one of the motors is arranged on an operating platform, at least one tire is connected to the operating platform, the output shaft of at least one motor is connected to the tire through a bearing passing through the tire, two of the remote controllers are respectively placed on the operating platform and the side wall of the cage, and the motors are both electrically connected to the remote controllers.
4. A marine maintenance device according to claim 3, characterized in that: An inverted U-shaped groove extending upward from the middle of its lower end surface is provided on the hanging wall, the upper end of the side outer plate is inserted into the inverted U-shaped groove of the hanging wall, and a plurality of tires are connected at the bottom of the inverted U-shaped groove through a plurality of bearings, and the tires are placed on the upper end surface of the side outer plate; the width of the inverted U-shaped groove is greater than the thickness of the side outer plate, and a plurality of spherical rollers are provided between the inner side walls on both sides of the inverted U-shaped groove and the side walls on both sides of the side outer plate at intervals along the length direction of the ship, and the spherical rollers are rotatably embedded in the inner side walls of the inverted U-shaped groove; a plurality of butterfly valves for fixing the hanging wall are screwed on both side walls of the inverted U-shaped groove, and the butterfly valves on both sides of the inverted U-shaped groove are arranged in mirror symmetry; the butterfly valve is composed of a steel valve body and an end rubber block, and the end in contact with the side outer plate is the end rubber block.
5. A marine maintenance device according to any one of claims 2 to 4, characterized in that: A cable reel platform is fixed on the end of the hanger beam away from the hanging wall, and a cable reel is fixed on the cable reel platform. The cable reel is connected to the two sides of the top of the cage through two steel cables, and the cable reel is connected to the remote control by telecommunication. A plurality of spherical rollers are provided on the outer wall of the cage close to the side outer plate, and the spherical rollers are close to the vertically extending side outer plate.
6. A marine maintenance device according to claim 5, characterized in that: The inspection arm comprises a rotating arm, a telescopic arm, two arm cables and a connecting electromagnet. One end of the rotating arm is rotatably connected to the cage body, and the rotating arm can rotate in the horizontal direction. The other end of the rotating arm is connected to the fixed end of the telescopic arm by a fastening bolt; the connecting electromagnet is rotatably connected to the telescopic end of the telescopic arm, and the telescopic arm drives the connecting electromagnet to extend and retract in a direction perpendicular to the vertical side outer plate; a group of arm cable fixing rings are symmetrically provided on the left and right sides of the side wall of the cage body close to the side outer plate, and a group of arm cable pulleys are fixed directly above the arm cable fixing rings, one end of the two arm cables is respectively fixed to an arm cable fixing ring, and the other end extends upward to bypass the arm cable pulley and is fixedly connected to the telescopic end of the telescopic arm.
7. A marine maintenance device according to claim 6, characterized in that: The telescopic arm comprises a plurality of telescopic tubes with decreasing inner diameters and outer diameters in sequence, and the plurality of telescopic tubes are telescopically connected in sequence from the cage body to the direction of the ship in the order of inner diameters from large to small. In two telescopically connected telescopic tubes, a limit spring sleeve is provided at the connecting end of the small-diameter telescopic tube and the large-diameter telescopic tube, and the limit spring sleeve is vertically fixed to the inside of the small-diameter telescopic tube. A limit spring that is telescopically extended and retracted along the axial direction of the limit spring sleeve is fixed to the lower part of the limit spring sleeve, and a limit rod is connected above the limit spring, and the limit rod comprises a round rod segment and a hemispherical segment. The diameter of the segment is the same as the diameter of the hemispherical segment, the end face of the free end of the limit rod is a hemispherical surface, and a small-diameter telescopic tube is vertically penetrated on the upper part of the limit rod. When the maintenance arm is extended, the end of the round rod segment away from the limit spring is located within the hollow cross-section of the large-diameter telescopic tube; among the multiple telescopic tubes, except for the telescopic tube with the largest diameter, at least two limit blocks are evenly distributed on the outer side walls of the ends of the remaining telescopic tubes close to the rotating arm, and a limit block is provided on the outer side wall of the end of each remaining telescopic tube away from the rotating arm; all telescopic tubes are provided with limit rings in the ports of the ends away from the rotating arm.
8. A marine maintenance device according to any one of claims 6 or 7, characterized in that: A double bottom of the cage is provided below the cage, and the pier is accommodated in the double bottom of the cage; the pier includes a bridge body and two traction ropes, a fixing ring is provided at each of the two ends of the lower inner side of the two longitudinal walls of the cage, a traction rope fixing ring is fixed on the end face of the bridge body away from the ship, one end of the two traction ropes are respectively fixed on the two fixing rings, and the other ends of the two traction ropes are fixed on the traction rope fixing ring; a spherical roller is fixed on the side of the lower end face of the bridge body away from the bridge body, and the spherical roller is placed on the double bottom of the cage; a pulley is fixed on the upper end face of the double bottom of the cage close to the ship, a limit block is provided between the pulley and the spherical roller, and the limit block is fixed on the double bottom of the cage.
9. A marine maintenance device according to claim 8, characterized in that: The trestle also includes a folding handrail, which is arranged on both sides of the upper end surface of the bridge body in the length direction, and the folding handrail includes a cross bar, and a plurality of vertical bars are rotatably connected to the lower side surface of the cross bar, and the lower ends of the vertical bars are rotatably connected to the bridge body; a lock buckle extending vertically downward is provided on the lower side surface of the cross bar close to the cage body, and the lock buckle is located between the vertical bar closest to the cage body and the cage body, and a lock support perpendicular to the vertical bar is provided on the vertical bar closest to the cage body, and a lock groove is provided on the upper side surface of the lock support close to the lock buckle. When the folding handrail is in use, the lower end of the lock buckle is inserted into the lock groove.
10. A marine maintenance device according to claim 9, characterized in that: A flap is connected on the side of the bridge body close to the ship and can be rotated 180°. A stop block is fixed on the lower end surface of the connecting end of the flap and the bridge body, and one end of the stop block protrudes from the end of the flap close to the bridge body. Anti-slip strips extending along the width direction are provided on the upper end surfaces of the bridge body and the flap.