Large-scale model deadwood reloading equipment and method thereof

Abstract

The invention provides large-scale model deadwood reloading equipment and a large-scale model deadwood reloading method aiming at the traditional deadwood mounting problem. The equipment comprises a rail, a conveying vehicle, a limiting mechanism, hoisting equipment, a fixed base and the like, and the rail is aligned with the center line of a ship body to ensure stable conveying of deadwood; the conveying vehicle bears the deadwood, and the wheels can move in the direction perpendicular to the track plane. The limiting mechanism prevents the conveying vehicle from exceeding the range; the four hoisting devices are distributed in a matrix, the postures of the deadwood can be flexibly adjusted, and the hoisting safety and stability are improved; and the fixed base positions the deadwood to prevent the deadwood from shaking. The method comprises the steps of position marking, horizontal conveying, vertical lifting, primary welding, full welding and the like, and standing is conducted for 1.5 hours or above after primary welding. It can be guaranteed that the deadwood is accurately and stably installed in a ship body preset groove, the stability and performance of the overall structure of a ship are improved, and the construction efficiency and quality can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of ship wood replacement, in particular to large-scale model wood replacement equipment and method thereof. Background Art

[0002] Currently, many high-speed displacement vessels utilize a stern stern sill structure to ensure smooth water flow in the middle and rear of the hull and reduce roll, thereby improving directional stability. However, the stern sill structure negatively impacts turning performance, sailing resistance, and the flow field around the rear appendages and propellers. If vessel performance does not meet performance targets, the stern sill needs to be replaced.

[0003] Traditionally, due to the sheer weight of metal structures, often reaching several tons, specialized installation equipment is currently lacking. This makes it difficult to ensure precise alignment between the hull and the sheer sheer weight when installing the sheer weight into the pre-set slots. Cutting errors and installation deviations are highly likely to occur, impacting the overall structural stability and performance of the vessel, and presenting a pressing technical challenge for the industry.

[0004] To this end, we propose a large-scale model wood replacement device and method. Summary of the Invention

[0005] Based on this, it is necessary to provide a large-scale model deadwood replacement equipment and method to address the technical problems of traditional deadwood installation, such as the lack of specialized equipment, difficulty in ensuring the installation accuracy between the hull and the deadwood, prone to cutting errors and installation deviations, and affecting the overall structural stability and performance of the ship. This will enable the deadwood to be accurately and stably installed in the preset slots of the hull, thereby improving the overall structural stability and performance of the ship.

[0006] The first aspect of the present invention provides a large-scale model wood replacement equipment, which is used to fix the wood to a preset groove opened on the hull, including a track, a transport vehicle, a limiting mechanism, a lifting device and a fixed base. The track is set at a preset position under the hull to provide a path for the horizontal transportation of the wood. It is made of high-strength steel, laid flat and straight and aligned with the center line of the hull, and laid at least vertically below the preset groove to ensure sufficient load-bearing capacity and stability, so that the wood can be smoothly transported to the designated position and improve construction efficiency; the transport vehicle is movably set on the track to carry the wood, and its wheels are mounted on the track. It can move freely in a direction perpendicular to the plane of the track, which is convenient for subsequent lifting, and its vertical height is lower than the wood. It is set in an area where the wood does not need to be welded to avoid interference during subsequent lifting and initial welding; the limiting mechanism is set at the end of the track, which can be mechanical or hydraulic to prevent the transport vehicle from exceeding the predetermined range during movement, so that it can reasonably stay in the position to be installed to avoid safety accidents such as collision or overturning; the lifting device is set on the hull, and the transport vehicle is lifted, The selection of equipment such as hoists is determined according to the weight and size of the wood to ensure that the wood can be lifted safely and stably. Four lifting equipment are used and distributed in a matrix around the preset slot of the hull. The wood and the conveyor vehicle are lifted steadily by lifting at the same time. The four-point lifting method can flexibly adjust the posture of the wood, which is easier to meet the installation and positioning requirements, and can also disperse the weight of the wood, improve the safety and stability of lifting; the fixed base is set in the conveyor vehicle to position the wood placed on the conveyor vehicle to prevent the wood from shaking during the movement of the conveyor vehicle. It is matched with the inner cavity size of the conveyor vehicle, and a groove is opened on the upper end to match the shape of the lower end face of the wood. The size and shape of the groove are precisely processed according to the actual size and shape of the wood to ensure that the wood can fit tightly in the groove, provide a good positioning effect, ensure the transportation safety of the wood, and also provide convenient conditions for subsequent lifting and installation work.

[0007] Other embodiments also include a surveying and mapping component for determining the vessel's baseline and centerline, providing an accurate benchmark for subsequent cutting and installation area marking, ensuring the accuracy of the refitting process. Typically, a laser surveyor or total station is used. These devices offer high precision and efficiency, quickly and accurately acquiring the three-dimensional coordinates of objects, enabling automated processing and analysis of measurement data. This provides a reliable benchmark for subsequent cutting and installation work, avoiding cutting errors and installation issues caused by inaccurate benchmarks.

[0008] In other embodiments, the wheels of the transport vehicle are mounted on a track and can move freely in a direction perpendicular to the plane of the track. The vertical height of the transport vehicle is lower than the wood and is set in an area where the wood does not need to be welded. This is convenient for subsequent lifting of the wood by the transport vehicle to avoid interference, especially interference during initial welding, thereby ensuring a smooth installation process.

[0009] In other embodiments, a hull connection plate and a transport vehicle connection plate are further included. The hull connection plate is provided on the hull, and the transport vehicle connection plate is provided on the transport vehicle, for docking with the lifting equipment, ensuring safety and stability during the lifting process, and facilitating the lifting of the wood and the transport vehicle to the vicinity of the hull installation location. The hull connection plate and the transport vehicle connection plate are typically made of high-strength steel, and their shape and size are designed according to the connection requirements of the lifting equipment to ensure a secure connection with the lifting equipment.

[0010] In other embodiments, the fixed base is arranged in the conveying vehicle and is matched with the inner cavity size of the conveying vehicle; a groove adapted to the shape of the lower end surface of the wood is opened at the upper end of the fixed base, and the size and shape of the groove are precisely processed according to the actual size and shape of the wood to ensure that the wood can fit tightly in the groove, preventing the wood from shaking or displacing during the movement of the conveying vehicle, ensuring the transportation safety of the wood, and also providing convenient conditions for subsequent lifting and installation work.

[0011] In other embodiments, the length of the fixed base is smaller than the length of the wood along the centerline of the track, and the groove on the fixed base is fixed in the middle of the wood, so that when the wood contacts the preset groove on the hull, initial welding can be performed at the head and tail ends of the wood, thereby improving the connection stability between the wood and the hull. After the initial welding is completed, the conveying vehicle and the fixed base are separated, and then full welding is performed to achieve the connection between the wood and the hull.

[0012] In other embodiments, the track is aligned with the centerline of the hull and is laid at least vertically below the pre-set groove in the hull, so that the wood can be smoothly transported to the designated location, thereby improving construction efficiency. During laying, attention should be paid to the setting of parameters such as track spacing and height. These parameters must be precisely calculated and adjusted based on the size of the wood, the specifications of the transport vehicle, and the operating requirements of the lifting equipment.

[0013] In other embodiments, the number of lifting devices is four, distributed in a matrix around the pre-set slot in the hull. Simultaneous lifting by the four lifting devices allows the wood and the transport vehicle to be lifted smoothly. The four-point lifting method allows for flexible adjustment of the wood's position, making it easier to meet installation and positioning requirements. It also distributes the wood's weight, improving lifting safety and stability. The four lifting points are strategically positioned based on the wood's center of gravity, ensuring that the wood remains balanced during the lifting process.

[0014] The second aspect of the present invention provides a large-scale model wood replacement method, using the above-mentioned large-scale model wood replacement equipment, including the steps of position marking, horizontal transportation, vertical lifting, initial welding and full welding. By using the surveying component to find the baseline and centerline of the ship, a groove for installing the wood is cut at the stern of the hull; the transport vehicle transports the wood horizontally to a preset position; the transport vehicle and the wood are lifted to the vicinity of the hull installation position using the lifting equipment; the front and rear ends of the wood are initially welded to the position of the preset groove of the hull, and then left to stand for a certain period of time after the initial welding; finally, the wood is fully welded to the preset groove to achieve the replacement connection between the wood and the hull. This method can ensure the accuracy and stability of wood installation and improve construction efficiency and quality.

[0015] In other embodiments, in the initial welding step, the standing time is more than 1.5 hours, and the welds are solidified to ensure that the welding nodes of the initial welding have sufficient supporting strength to avoid the wood from falling and ensure the smooth progress of the subsequent full welding work. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention.

[0017] Figure 2 It is an exploded view of the present invention.

[0018] Figure 3 It is the front view of the present invention.

[0019] in:

[0020] 1. Hull; 1.1. Pre-set groove; 2. Wood; 3. Track; 4. Transport vehicle; 5. Limiting mechanism; 6. Hull connecting plate; 7. Lifting equipment; 8. Transport vehicle connecting plate; 9. Fixed base.

[0021] Specific implementation party

[0022] The specific embodiments of the present invention will be described below with reference to the accompanying drawings.

[0023] Example 1

[0024] like Figure 1-Figure 3 As shown, this embodiment relates to a device for replacing large-scale model wood, which mainly includes a track 3, a conveyor 4, a lifting device 7, a hull connecting plate 6 and a conveyor connecting plate 8, as well as auxiliary tools such as a surveying instrument, for accurately installing the wood 2 into a preset groove opened on the hull 1. The specific structure and design are as follows:

[0025] The hull 1 in this embodiment is moored at a preset position, and a preset groove 1.1 for accommodating the wood 2 is opened at the stern of the hull 1.

[0026] Although the wood 2 in this embodiment is called wood, it is actually a metal structure. Following the traditional name, the wood 2 is fixed to the hull 1 by welding. Since the wood 2 is a metal structure, it is huge in weight, usually weighing several tons. There is currently no corresponding installation equipment to ensure the accuracy between the hull 1 and the wood 2.

[0027] The track 3 in this embodiment is made of high-strength steel with high yield strength and tensile strength, which can ensure sufficient bearing capacity and stability. Even when bearing the weight of large-sized wood 2 and conveyor trolley 4 and the dynamic load during the lifting process, no obvious deformation or damage will occur. The track 3 needs to be laid flat and straight, and aligned with the center line of the hull 1, and the track 3 is laid at least vertically below the preset groove 1.1, so that the wood 2 can be smoothly transported to the designated position, thereby improving construction efficiency. When laying, attention should be paid to the setting of parameters such as the spacing and height of the track 3. These parameters need to be accurately calculated and adjusted according to the size of the wood 2, the specifications of the conveyor trolley 4 and the operating requirements of the lifting equipment 7.

[0028] The limiting mechanism 5 in this embodiment is arranged at the end of the track 3 and adopts mechanical or hydraulic type. The mechanical limiting mechanism is usually composed of components such as a block and a spring, and has a simple and reliable structure and low cost; the hydraulic limiting mechanism controls the movement of the block through the hydraulic system, and has the advantages of good buffering effect and high positioning accuracy. Its function is to prevent the conveying vehicle 4 from exceeding the predetermined range during movement, and to enable it to reasonably stay at the position to be installed, thereby avoiding safety accidents such as collision or overturning.

[0029] The transport vehicle 4 in this embodiment moves along the track 3, and the wheels of the transport vehicle 4 are mounted on the track, and can move freely in a direction perpendicular to the plane of the track 3, which is convenient for subsequent lifting. The vertical height of the transport vehicle 4 is lower than the wood 2, and the transport vehicle 4 is set in an area where the wood 2 does not need to be welded, which is convenient for avoiding interference when the wood is subsequently lifted by the transport vehicle 4, especially interference during initial welding.

[0030] The fixed base in this embodiment is arranged in the transport vehicle 4 and is matched with the inner cavity size of the transport vehicle 4. The upper end of the fixed base is provided with a groove that is adapted to the shape of the lower end face of the wood 2 for positioning the wood 2 to prevent the wood from shaking. The size and shape of the groove need to be precisely processed according to the actual size and shape of the wood 2 to ensure that the wood can fit tightly in the groove (the precisely adapted groove can provide a good positioning effect, prevent the wood from shaking or displacing during the movement of the transport vehicle, ensure the transportation safety of the wood, and also provide convenient conditions for subsequent lifting and installation work. At the same time, since the lower end face of the wood 2 is parallel to the plane of the track 3 and has different widths, the width of the lower end face of the wood 2 close to the hull 1 is greater than the width of the other side, and the groove at the upper end of the fixed base 9 can better match the lower end face of the wood 2, and the fixed base 9 is matched with the size of the transport vehicle 4, so that the position of the wood 2 and the transport vehicle 4 is relatively fixed, and when the transport vehicle 4 is hoisted later, the position of the wood 2 can also be ensured to be clear.

[0031] Along the centerline direction of the track 3, the length of the fixed base 9 is smaller than the length of the wood 2, and the groove on the fixed base 9 is fixed in the middle of the wood 2, that is, the head and tail ends of the wood 2 protrude. This is also to facilitate the contact between the wood 2 and the preset groove on the hull, so that the initial welding can be performed at the head and tail ends of the wood 2, thereby improving the connection stability between the wood 2 and the hull 1. After the initial welding is completed, the conveying vehicle and the fixed base 9 are separated, and then full welding is performed to achieve the connection between the wood 2 and the hull 1.

[0032] In this embodiment, the hoisting device 7 uses a hoist, and its selection needs to be determined according to the weight and size of the wood 2 to ensure that the wood can be lifted safely and stably. When selecting a hoist, it is necessary to consider its rated lifting capacity, lifting height, working level and other parameters so that it can meet the actual construction needs. During the lifting process, attention should be paid to uniform force to avoid tilting or shaking of the wood 2, which will affect the subsequent construction accuracy. Uniform force can be achieved by adjusting the position of the lifting point or using a balancing device. Hoisting with uniform force can ensure that the wood remains stable during the lifting process, reduce stress concentration caused by tilting or shaking, avoid damage to the wood, and also provide a good foundation for subsequent installation and positioning work;

[0033] At the same time, this embodiment employs four lifting devices 7, distributed in a matrix around the pre-set slot of the hull 1. The simultaneous lifting of the four lifting devices allows the wood 2 and the transport vehicle 4 to be lifted smoothly. The four-point lifting method allows for flexible adjustment of the wood's posture, making it easier to meet installation and positioning requirements. It also distributes the wood's weight, improving lifting safety and stability. The four lifting points need to be rationally arranged based on the wood's center of gravity to ensure that the wood remains balanced during the lifting process.

[0034] In this embodiment, the hull connecting plates 6 and the transport vehicle connecting plates 8 are provided on the hull 1 and the transport vehicle 4 in multiple numbers, and are used to connect with the lifting equipment 7 to ensure the safety and stability of the lifting process, and to facilitate the lifting of the wooden beam 2 and the transport vehicle 4 to the vicinity of the installation position of the hull 1. The hull connecting plates 6 and the transport vehicle connecting plates 8 are generally made of high-strength steel, and their shapes and sizes need to be designed according to the connection requirements of the lifting equipment 7 to ensure that they can be firmly connected to the lifting equipment.

[0035] This embodiment also includes a surveying and mapping component, typically using a laser surveyor or total station. These devices are characterized by high precision and efficiency. Laser surveyors use laser beams to quickly and accurately obtain the three-dimensional coordinates of objects. Total stations integrate electronic distance measurement, angle measurement, and recording functions, enabling automated processing and analysis of measurement data. After the ship enters dock, the surveyor is used to locate the ship's baseline and centerline, providing an accurate reference for subsequent cutting and marking of installation areas, ensuring the accuracy of the entire refitting process.

[0036] like Figure 2 As shown, after the hull 1 enters the dock, a track 3 is laid along the center line of the track 3 under the hull 1, and a limit mechanism 5 is set at the end of the track 3. The wooden beam 2 is hoisted onto the conveyor 4 and moves along the track 3 together with the conveyor 4. After the wooden beam 2 and the conveyor 4 are moved into position along the track 3, the wooden beam 2 and the conveyor 4 are hoisted to the vicinity of the installation position of the hull 1 by means of a hoisting device 7, a hull connecting plate 6 set on the hull 1, and a conveyor connecting plate 8 of the conveyor 4.

[0037] Example 2

[0038] This embodiment discloses a method for refitting a large-scale model of a wooden 2, using the refitting device in the first embodiment. The main steps are as follows:

[0039] Position Marking: After the vessel enters dock, a high-precision laser surveyor or total station is used to locate the vessel's baseline and centerline, providing an accurate reference for subsequent marking of the cutting and installation areas. Laser surveyors and total stations, as modern, high-precision measurement equipment, offer advantages such as fast measurement speed, high accuracy, and robust data processing capabilities. These high-precision surveying devices ensure accurate measurements of the vessel's baseline and centerline, providing a reliable benchmark for subsequent cutting and installation work, avoiding cutting errors and installation problems caused by inaccurate benchmarks. Simultaneously, the cutting and installation areas are marked, and relevant data is recorded. A groove for installing the deadbolt 2 is cut into the stern of the hull 1. Professional marking tools, such as paint and markers, are used during the marking process to ensure clarity and accuracy, making it easier for construction personnel to identify and operate. Recording relevant data facilitates subsequent construction verification and quality traceability, facilitating monitoring and management of the construction process.

[0040] Horizontal transportation: The transport vehicle 4 runs on the track 3, and the wood 2 is placed on the fixed base 9 of the transport vehicle 4 through the early lifting equipment. Since the groove of the fixed base 9 is adapted to the shape of the wood 2, the position of the wood 2 and the transport vehicle 4 is relatively fixed, which is convenient for the subsequent lifting of the transport vehicle 4 to connect the wood 2 with the preset groove of the hull 1. A fixed base is set in the transport vehicle 4, and the groove of the fixed base is adapted to the shape of the lower end face of the wood 2 to position the wood 2 and avoid shaking. The groove of the fixed base needs to be precisely processed to ensure a good fit with the wood. At the same time, an anti-slip pad or buffer device can be set in the groove to further enhance the positioning effect and transportation safety of the wood.

[0041] Vertical lifting: Four lifting devices 7 arranged in a matrix are used to lift the transport vehicle 4 and the wood 2 onto the track 3 on the slide. The positions of the four lifting points need to be arranged reasonably according to the center of gravity of the wood to ensure that the wood can maintain balance during the lifting process.

[0042] Initial welding: After the hoisting arrives at the designated position, perform initial welding on the front and rear ends of the wooden beam 2 and the position of the preset slot 1.1 of the hull 1. During the initial welding, the total support strength of the welding node needs to be greater than the weight of the wooden beam 2 to prevent the wooden beam 2 from falling. After the initial welding, it needs to be left to stand for more than 1.5 hours for the weld to solidify;

[0043] Full welding: After the initial welding is completed, the conveying vehicle 4 and the fixed base 9 are dismantled by the lifting equipment 7, and the wood 2 and the preset groove 1.1 are fully welded to realize the replacement connection of the wood 2 and the hull 1.

[0044] The above description is an explanation of the present invention, not a limitation of the present invention. The scope of the present invention is defined in the claims. Any modifications may be made within the scope of protection of the present invention.

Claims

1. A large-scale model wood replacement device for fixing wood into a preset slot on a ship hull, characterized in that: include: A track is provided at a preset position below the hull and is used to provide a horizontal conveying path; A transport vehicle, which is movably arranged on a track and is used to carry wood; A limiting mechanism, wherein the limiting mechanism is arranged at the end of the track; A hoisting device is provided on the hull and is used to hoist the transport vehicle; The fixed base is arranged in the conveying vehicle and is used to position the wood placed on the conveying vehicle to prevent the wood from shaking during the movement of the conveying vehicle.

2. The large-scale model wood dressing device according to claim 1 is characterized in that: It also includes a surveying component for determining the vessel's baseline and centerline, providing an accurate benchmark for subsequent cutting and installation area marking, ensuring the accuracy of the refitting process.

3. The large-scale model wood dressing device according to claim 1 is characterized in that: The wheels of the transport vehicle are mounted on the track and can move freely in a direction perpendicular to the plane of the track. The vertical height of the transport vehicle is lower than the wood and is arranged in an area where the wood does not need to be welded.

4. The large-scale model wood dressing device according to claim 1 is characterized in that: It also includes a hull connecting plate and a conveying vehicle connecting plate. The hull connecting plate is arranged on the hull, and the conveying vehicle connecting plate is arranged on the conveying vehicle for docking with the lifting equipment.

5. The large-scale model wood dressing device according to claim 1 is characterized in that: The fixed base is arranged in the transport vehicle and is matched with the inner cavity size of the transport vehicle; the upper end of the fixed base is provided with a groove that is matched with the shape of the lower end surface of the wood.

6. The large-scale model wood dressing device according to claim 5 is characterized in that: Along the centerline direction of the track, the length of the fixed base is smaller than the length of the wood, and the groove on the fixed base is fixed in the middle of the wood.

7. The large-scale model wood dressing device according to claim 1 is characterized in that: The track is aligned with the center line of the hull and is laid at least vertically below a preset groove of the hull.

8. The large-scale model wood dressing device according to claim 1 is characterized in that: There are four hoisting devices, which are distributed in a matrix around the preset slots of the hull.

9. A large-scale model wooden transformation method, characterized in that: Using the large-scale model wood dressing device according to any one of claims 1 to 8 comprises the following steps: Position marking: After the ship enters the dock, the surveying component is used to find the ship's baseline and centerline, and a groove for installing the deadbolt is cut at the stern of the hull; Horizontal transportation: The transport vehicle runs on the track, and the wood is placed on the fixed base of the transport vehicle through the early lifting equipment. Since the fixed base is adapted to the shape of the wood, the position of the wood and the transport vehicle is relatively fixed, and the transport vehicle transports the wood horizontally to the preset position; Vertical lifting: Use lifting equipment to lift the transport vehicle and the wood together to the vicinity of the hull installation location; Initial welding: After the wood is hoisted to the designated location, the front and rear ends of the wood are initially welded to the preset slots on the hull. During the initial welding, the total supporting strength of the welded joints should be greater than the weight of the wood. After the initial welding, the wood should be left to stand for a certain period of time until the welds solidify. Full welding: After the initial welding is completed, the conveyor car is dismantled by lifting equipment, and the deadwood and the preset groove are fully welded to realize the replacement connection between the deadwood and the hull.

10. The large-scale model wood dressing method according to claim 9, characterized in that: In the initial welding step, the standing time is more than 1.5 hours.

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