Ship slideway launching sole timber fixing device

Abstract

The invention relates to the technical field of ship construction and launching, in particular to a ship slideway launching sole timber fixing device. The device comprises a bottom plate, four I-shaped guide rails are assembled above the bottom plate, a sliding plate is slidably connected to the top ends of every two adjacent I-shaped guide rails, a plurality of containing grooves are formed in the two ends of the top end of each sliding plate, the inner sides of the containing grooves are slidably connected with wood blocks, and the two ends of the interior of each wood block at one end are slidably connected with connecting rods; the two sides of the connecting rod are slidably connected with connecting blocks, the two ends of the middle of each connecting block are rotatably connected with limiting rotating pins, and one ends of the limiting rotating pins are slidably connected with the connecting rod. According to the ship slideway launching sole timber fixing device, a ship is launched, then the driving motor is started to drive the lead screw to rotate, the lead screw drives the sliding plate, the sole timber block and the ship body to be conveyed to a water area, and the ship body is effectively launched.

Description

Technical Field

[0001] This invention relates to the field of shipbuilding and launching technology, and in particular to a device for fixing launching pads on ship slipways. Background Technology

[0002] In the field of shipbuilding and launching engineering, launching ships via slipways is a common construction method. When a ship slides into the water along the slipway, a large number of wooden blocks need to be laid between the hull and the slipway. These blocks are typically made of hardwood (such as pine or oak), and their physical properties must meet both load-bearing strength and cushioning performance requirements. Depending on the ship's tonnage, the number of wooden blocks used in a single launching operation can reach hundreds or even thousands. The specifications of the wooden blocks (such as length and cross-sectional dimensions) need to be customized according to the hull form and launching load. As the shipbuilding industry transforms towards green and intelligent manufacturing, the International Maritime Organization (IMO) 2020 Code for Environmental Design of Ships imposes stricter requirements on waterborne pollutant emissions. Domestic port management departments have also issued the "Measures for the Management of Environmental Protection in Port Operations," which explicitly requires a construction waste recycling rate of over 90%. Meanwhile, the trend towards larger ships (such as 10,000 TEU container ships and very large crude carriers) has led to a 40% year-on-year increase in the amount of launch pad timber used per launch, rendering traditional recycling methods inadequate for actual engineering needs. When using the above technology, the following technical problems were found in the existing technology: First, the water area is mostly open water or tidal influence area. Factors such as water flow speed, water temperature and floating objects will cause the pad wood to disperse quickly, or even drift away from the operation area with the water flow, resulting in a significant expansion of the salvage area. Manual salvage requires divers or salvage boats to search piece by piece. A single salvage operation can take several days and is significantly affected by weather conditions (such as strong winds and heavy rain), thereby reducing the efficiency of pad wood recovery. Second, salvage operations require investment in ships, labor, transportation, etc. The cost of a single salvage operation accounts for 20%-30% of the cost of purchasing the padding timber. Moreover, the lack of padding timber leads to the need to repurchase it for subsequent ship construction, resulting in continuous cost expenditures, which affects economic costs and wastes resources. To address this, we have invented a padding timber fixing device for ship slipways, which provides an alternative technical solution to the above-mentioned technical problems. Summary of the Invention

[0003] Based on this, it is necessary to provide a ship launching pad fixing device to address the above-mentioned technical problems. This device involves constructing a base plate on the launching bank, with several I-beam guide rails mounted on the base plate. A sliding plate is slidably connected to the I-beam guide rails, and several pad blocks are placed on the sliding plate. The pad blocks effectively support the hull and buffer the impact force during launching. Therefore, when the pad blocks effectively support and repair the ship, and the repair is completed, the ship is launched. Then, the drive motor is started to rotate the lead screw, which in turn drives the sliding plate, pad blocks, and hull to be transported into the water, effectively launching the ship.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A ship slipway launching pad fixing device includes a base plate, four I-beam guide rails are mounted on the top of the base plate, and a sliding plate is slidably connected to the top of two adjacent I-beam guide rails. Several placement slots are opened at both ends of the top of the sliding plate. A pad block is slidably connected to the inner side of the placement slot. A connecting rod is slidably connected to both ends of the inner side of one of the pad blocks. Connecting blocks are slidably connected to both sides of the connecting rod. Limiting pins are rotatably connected to both ends of the middle of the connecting blocks. One end of the limiting pin is slidably connected to the connecting rod.

[0005] As a preferred embodiment of the ship slipway launching pad fixing device provided by the present invention, the bottom end of the slipway is provided with a traction mechanism for retracting a plurality of pad blocks. The traction mechanism includes an A mounting block, a B mounting block, a take-up roller, a guide wheel and a worm gear. An A mounting block is fixed to one end of the slipway, and a B mounting block is fixed to the middle of the bottom end of the slipway. A take-up roller is rotatably connected to the inner side of the A mounting block and the B mounting block respectively. A traction line is wound around the outer side of the take-up roller, and a safety buckle is fixed to one end of the traction line.

[0006] In a preferred embodiment of the ship slipway launching pad fixing device provided by the present invention, the safety buckle is wrapped around the connecting rod and is snapped into connection with the traction line.

[0007] In a preferred embodiment of the ship slipway launching pad fixing device provided by the present invention, a worm gear is fixed on one side of the winding roller, a worm is meshed with the top of the worm gear, and the two ends of the worm are rotatably connected to mounting block A and mounting block B respectively. A servo motor is mounted on one side of mounting block A, and the output end of the servo motor is fixed to the worm.

[0008] In a preferred embodiment of the ship slipway water-laying pad fixing device provided by the present invention, a waterproof cover is provided on the outside of the servo motor.

[0009] In a preferred embodiment of the ship slide launching pad fixing device provided by the present invention, guide grooves are provided at both ends of the slide, a guide wheel is rotatably connected to the inner side of the guide groove, and the outer side of the guide wheel is slidably connected to the traction line.

[0010] In a preferred embodiment of the ship slipway launching pad fixing device provided by the present invention, a limiting float sleeve is sleeved on the outer side of the connecting rod and located between two adjacent pad blocks.

[0011] In a preferred embodiment of the ship slipway underfloor mat fixing device provided by the present invention, a lead screw is rotatably connected above the base plate and between two I-beam guide rails. The outer side of the lead screw is threadedly connected to the slide plate. A drive motor is mounted at one end of the top of the base plate, and the output end of the drive motor is fixed to the lead screw.

[0012] In a preferred embodiment of the ship slide landing pad fixing device provided by the present invention, a U-shaped sliding frame is fixed on both sides of the bottom end of the slide plate. A plurality of lower rollers are rotatably connected to both sides of the bottom inner side of the U-shaped sliding frame. The outer side of the lower rollers is rotatably connected to the I-beam guide rail. A plurality of upper rollers are rotatably connected to the top inner side of the U-shaped sliding frame. The bottom end of the upper rollers is rotatably connected to the I-beam guide rail.

[0013] In a preferred embodiment of the ship slipway launching pad fixing device provided by the present invention, the base plate is inclined horizontally, and a controller is installed on one side of the top of the base plate.

[0014] It is clear without a doubt that the technical solution described above in this application can solve the technical problem that this application aims to address.

[0015] Meanwhile, through the above technical solutions, the present invention has at least the following beneficial effects: This invention provides a ship slipway launching pad fixing device, which connects pad blocks in series with connecting rods and is connected to traction lines and buckles. Combined with the floating limit of the limiting float sleeve, the device can be quickly assembled by connecting rods, connecting blocks and limiting pins, effectively grouping several pad blocks together to avoid the pad blocks being scattered and lost. It can be easily locked together by limiting pins and limiting holes, and can effectively replace and repair a damaged pad block, so that worn parts can be quickly replaced during maintenance.

[0016] Driven by a servo motor, the worm gear transmission mechanism enables the automatic winding of the wooden blocks and effectively resets them, facilitating a one-click "launch-recovery" operation. This reduces manual labor and improves the recovery efficiency, eliminating the need for ships and divers for manual salvage. The cost per recovery is reduced by more than 70%, and the subsequent repurchase costs due to missing wooden blocks are avoided. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure between the I-beam guide rail and the sliding plate of the present invention; Figure 3 This is a schematic diagram of the structure between the lead screw and the slide plate of the present invention; Figure 4 This is a schematic diagram of the structure between the U-shaped sliding frame and the sliding plate of the present invention; Figure 5 This is a schematic diagram of the structure between the skateboard and the wooden block of the present invention; Figure 6 This is a schematic diagram of the traction mechanism structure of the present invention; Figure 7 This is a schematic diagram of the structure between the take-up roller and the servo motor of the present invention; Figure 8 This is a schematic diagram of the structure between the wooden block, the limiting float sleeve, and the connecting rod of the present invention; Figure 9 This is a schematic diagram of the structure between the connecting rod and the connecting block of the present invention; Figure 10 This is a schematic diagram of the structure between the limiting pin and the limiting hole of the present invention.

[0019] In the diagram: 1. Base plate; 2. I-beam guide rail; 3. Lead screw; 4. Slide plate; 5. Controller; 6. Wooden block; 7. U-shaped sliding frame; 8. Lower roller; 9. Upper roller; 10. Mounting block A; 11. Mounting block B; 12. Take-up roller; 13. Guide groove; 14. Guide wheel; 15. Worm gear; 16. Worm; 17. Servo motor; 18. Limiting float sleeve; 19. Connecting rod; 20. Connecting block; 21. Limiting pivot pin; 22. Limiting hole; 23. Safety buckle. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0021] Existing technical problems: First, the launching areas are mostly open waters or tidal zones. Factors such as water flow speed, water temperature, and floating objects can cause the pads to disperse quickly or even drift away from the work area with the water flow, resulting in a significant expansion of the salvage area. Manual salvage requires divers or salvage boats to search piece by piece, and a single salvage operation can take several days. It is also significantly affected by weather conditions such as strong winds and heavy rain, thereby reducing the efficiency of pad recovery. Second, salvage operations require investment in ships, labor, and transportation. The cost of a single salvage operation accounts for 20%-30% of the cost of purchasing timber. Furthermore, the lack of timber necessitates the re-purchase of timber during subsequent ship construction, resulting in continuous cost expenditures and impacting economic efficiency while also wasting resources. To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0022] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the embodiments of the present invention can be combined with each other.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0024] Example 1 Please refer to Figures 1-10 A ship slipway launching pad fixing device includes a base plate 1. Four I-beam guide rails 2 are mounted on the top of the base plate 1. Slide plates 4 are slidably connected to the top ends of two adjacent I-beam guide rails 2. Several placement slots are opened at both ends of the top ends of the slide plates 4. Pad blocks 6 are slidably connected to the inner side of the placement slots. Connecting rods 19 are slidably connected to both ends inside one end of the pad block 6. Connecting blocks 20 are slidably connected to both sides of the connecting rods 19. Limiting pins 21 are rotatably connected to both ends of the middle of the connecting blocks 20. One end of the limiting pin 21 is slidably connected to the connecting rod 19. When in use, when it is necessary to launch the ship, the bottom plate 1 is constructed on the launching shore, and several I-beam guide rails 2 are installed on the bottom plate 1. At this time, the sliding plate 4 is slidably connected to the I-beam guide rails 2, and several wooden blocks 6 are set on the sliding plate 4. The wooden blocks 6 are effectively used to support the hull and buffer the impact force during the launching process. Therefore, when the wooden blocks 6 effectively support the ship for maintenance, when the maintenance is completed, the ship is launched. Then, the drive motor is started to drive the lead screw 3 to rotate, and the lead screw 3 drives the sliding plate 4, the wooden blocks 6 and the hull to be transported to the water area, effectively launching the ship. The connecting rod 19 effectively connects several 06s in series, while the connecting block 20 effectively limits the two sides of the connecting rod 19. The rotating limiting pin 21 engages with the limiting hole 22 to facilitate the limiting connection of several wooden blocks 6.

[0025] The bottom of the slide plate 4 is equipped with a traction mechanism for retracting several wooden blocks 6. The traction mechanism includes an A mounting block 10, a B mounting block 11, a take-up roller 12, a guide wheel 14, and a worm gear 15. The A mounting block 10 is fixed to one end of the slide plate 4, and the B mounting block 11 is fixed to the middle of the bottom end of the slide plate 4. The take-up roller 12 is rotatably connected to the inner side of the A mounting block 10 and the B mounting block 11, respectively. The outer side of the take-up roller 12 is wound with a traction line, which is a 6×19+IWR stainless steel wire rope with a diameter of 10mm and a breaking tensile strength ≥54kN (safety factor ≥36). The actual maximum traction force is 150N), and the surface is coated with a polyurethane anti-slip layer (thickness 0.5mm) to increase the friction with the safety buckle (23). One end is fixed to the winding roller (12) through a pressing joint, and the other end is welded with a safety buckle (23). The welding strength is ≥90% of the breaking tensile force of the wire rope. One end of the traction line is fixed with a safety buckle 23. The safety buckle 23 is wrapped around the connecting rod 19 and is connected to the traction line by a snap-fit ​​connection. A worm gear 15 is fixed on one side of the take-up roller 12. A worm 16 is meshed with the top of the worm gear 15. The two ends of the worm 16 are rotatably connected to mounting block A 10 and mounting block B 11, respectively. A servo motor 17 is mounted on one side of mounting block A 10. The output end of the servo motor 17 is fixed to the worm 16. Specifically, the servo motor 17 is started to drive the worm gear 16 to rotate, and the worm gear 16 drives the worm wheel 15 and the take-up roller 12 to rotate. At this time, the take-up roller 12 effectively tightens the traction line, and the traction line retracts the wooden block 6. During the launching of the ship, the wooden block 6 will enter the water together. Therefore, the wooden block 6 needs to be retrieved and reused. The safety buckle 23 is used to lock the wooden block 6 to the traction line. The rotation of the take-up roller 12 effectively pulls and resets the wooden block 6, so as to improve the use effect of the wooden block 6. A waterproof cover is provided on the outside of the servo motor 17, which effectively protects the servo motor 17. Guide grooves 13 are provided at both ends inside the skateboard 4. Guide wheels 14 are rotatably connected to the inner side of the guide grooves 13. The outer side of the guide wheels 14 is slidably connected to the traction line. Furthermore, the guide wheels 14 effectively guide the traction line to prevent the traction line from directly contacting the skateboard 4 and causing wear on the traction line. The guide wheels 14 effectively tighten and guide the traction line to increase the safety of the traction line. A limiting float 18 is fitted on the outside of the connecting rod 19 and between two adjacent wooden blocks 6. The limiting float 18 effectively limits the distance between the two wooden blocks 6 and increases the overall suspension efficiency of the wooden blocks 6, preventing the wooden blocks 6 from sinking in the water. Example 2 Reference Figures 2-5 A ship slipway underfloor pad fixing device, wherein a lead screw 3 is rotatably connected above the base plate 1 and between two I-beam guide rails 2, the outer side of the lead screw 3 is threadedly connected to the slide plate 4, and a drive motor is mounted at one end of the top of the base plate 1, the output end of the drive motor is fixed to the lead screw 3; Specifically, by starting the drive motor to rotate the lead screw 3, the lead screw 3 drives the slide plate 4, the wooden block 6 and the hull to be transported to the water surface, and effectively floats the hull on the water surface, thus achieving the launching effect. Both sides of the bottom of the slide plate 4 are fixed with U-shaped sliding frames 7. Both sides of the bottom of the inner side of the U-shaped sliding frame 7 are rotatably connected with several lower rollers 8. The outer side of the lower rollers 8 is rotatably connected to the I-beam guide rail 2. The top of the inner side of the U-shaped sliding frame 7 is rotatably connected with several upper rollers 9. The bottom of the upper rollers 9 is rotatably connected to the I-beam guide rail 2. The U-shaped sliding frame 7 slides along the I-beam guide rail 2, which improves the stability of the sliding of the U-shaped sliding frame 7 and the sliding plate 4. The upper roller 9 and the lower roller 8 effectively increase the smoothness and stability of the sliding of the sliding plate 4. The base plate 1 is inclined, and a controller 5 is installed on one side of the top of the base plate 1. The device can be effectively controlled through the controller 5, which increases the convenience and practicality of the operator's control.

[0026] The usage process of the ship slipway launching pad fixing device provided by the present invention is as follows: In use, the wooden blocks 6 are installed on the base plate 1, and the hull is assembled on the wooden blocks 6 for maintenance. After the hull maintenance is completed, the wooden blocks 6 evenly support the hull on the slide plate 4. The operator starts the drive motor through the controller 5, which drives the lead screw 3 to rotate at a speed of 0.5m / s. The slide plate 4 slides along the I-beam guide rail 2 towards the water area, while the upper roller 9 and lower roller 8 of the U-shaped slide frame 7 roll in contact with the I-beam guide rail 2 to reduce sliding resistance and ensure that the hull slides down smoothly with an inclination deviation of ≤1°. After the hull is launched and floats on the water, the slide plate 4 continues to extend into the water to the designated position, and the wooden block 6 enters the water along with the slide plate 4 and detaches from the hull. At this time, the wooden block assembly is kept connected as a whole by the connecting rod 19 and the traction line to prevent it from floating apart. The limiting float sleeve 18 generates buoyancy to ensure that the wooden block assembly remains floating in the water and prevents it from sinking due to gravity. After the hull is launched, the operator sends a recovery command through the controller 5. The servo motor 17 starts, and the output shaft drives the worm gear 16 to rotate at a certain speed. The worm gear 16 drives the worm wheel 15 to rotate, which in turn drives the take-up roller 12 to rotate synchronously and start winding up the traction line. Therefore, the wooden block assembly is driven to be recovered at a constant speed along the water surface. The guide wheel 14 corrects the trajectory of the traction line in the guide groove 13 to prevent the traction line from deviating or wearing during the winding process. At this time, the limiting float sleeve 18 ensures that the wooden block assembly always floats during the recovery process. The connecting rod 19 and the connecting block 20 are assembled to effectively limit the series of wooden blocks 6. At this time, the limiting pin 21 is engaged with the limiting hole 22 to ensure the stability of the group of wooden blocks 6. Therefore, the servo motor 17 drives the take-up roller 12 to rotate, and the take-up roller 12 effectively winds up and resets the traction line and the group of wooden blocks 6, thereby avoiding the wooden blocks from scattering due to water flow impact and improving the recovery effect of the wooden blocks 6.

[0027] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A device for fixing wooden planks for launching ships onto a slipway, characterized in that, Includes a base plate (1), on which four I-beam guide rails (2) are mounted. The top ends of two adjacent I-beam guide rails (2) are slidably connected to a slide plate (4). Both ends of the top end of the slide plate (4) are provided with several placement slots. The inner side of the placement slot is slidably connected to a pad block (6). Both ends of the pad block (6) are slidably connected to a connecting rod (19). Both sides of the connecting rod (19) are slidably connected to a connecting block (20). Both ends of the middle of the connecting block (20) are rotatably connected to a limit pin (21). One end of the limit pin (21) is slidably connected to the connecting rod (19).

2. The ship slipway launching pad fixing device according to claim 1, characterized in that, The bottom end of the slide plate (4) is provided with a traction mechanism for retracting several wooden blocks (6). The traction mechanism includes an A mounting block (10), a B mounting block (11), a take-up roller (12), a guide wheel (14), and a worm gear (15). One end of the slide plate (4) is fixed with an A mounting block (10), and the middle of the bottom end of the slide plate (4) is fixed with a B mounting block (11). The inner sides of the A mounting block (10) and the B mounting block (11) are respectively rotatably connected with the take-up roller (12). The outer side of the take-up roller (12) is wound with a traction line, and one end of the traction line is fixed with a safety buckle (23).

3. The ship slipway launching pad fixing device according to claim 2, characterized in that, The safety buckle (23) wraps around the connecting rod (19) and is snapped into the traction line.

4. The ship slipway launching pad fixing device according to claim 2, characterized in that, A worm gear (15) is fixed on one side of the take-up roller (12), and a worm (16) is meshed with the top end of the worm gear (15). The two ends of the worm (16) are rotatably connected to mounting block A (10) and mounting block B (11) respectively. A servo motor (17) is mounted on one side of mounting block A (10), and the output end of the servo motor (17) is fixed to the worm (16).

5. A ship slipway launching pad fixing device according to claim 4, characterized in that, The servo motor (17) is provided with a waterproof cover on its outer side.

6. The ship slipway launching pad fixing device according to claim 2, characterized in that, The skateboard (4) has guide grooves (13) at both ends inside. The inner side of the guide groove (13) is rotatably connected to a guide wheel (14), and the outer side of the guide wheel (14) is slidably connected to the traction line.

7. A ship slipway launching pad fixing device according to claim 4, characterized in that, A limiting float sleeve (18) is fitted on the outside of the connecting rod (19) and between two adjacent wooden blocks (6).

8. A ship slipway launching pad fixing device according to claim 2, characterized in that, A lead screw (3) is rotatably connected above the base plate (1) and between two I-beam guide rails (2). The outer side of the lead screw (3) is threadedly connected to the slide plate (4). A drive motor is mounted on one end of the top of the base plate (1), and the output end of the drive motor is fixed to the lead screw (3).

9. A ship slipway launching pad fixing device according to claim 8, characterized in that, Both sides of the bottom end of the slide plate (4) are fixed with U-shaped sliding frames (7). Both sides of the bottom end of the inner side of the U-shaped sliding frame (7) are rotatably connected with several lower rollers (8). The outer side of the lower rollers (8) is rotatably connected to the I-beam guide rail (2). The top of the inner side of the U-shaped sliding frame (7) is rotatably connected with several upper rollers (9). The bottom end of the upper rollers (9) is rotatably connected to the I-beam guide rail (2).

10. A ship slipway launching pad fixing device according to claim 2, characterized in that, The base plate (1) is inclined horizontally, and a controller (5) is mounted on one side of the top of the base plate (1).

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