Accurate closing device for large hull block in dock

By introducing a support base, support plate, and motor-driven adjustment structure into the dock assembly device, the problem of hull position offset was solved, and the stability of precise assembly and welding was achieved.

CN223990142UActive Publication Date: 2026-03-13JIANGSU HANTONG WING HEAVY IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-25
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

The existing dock assembly device lacks an adjustment structure, which makes the hull position prone to shifting during welding, increasing the difficulty of operation.

Method used

A precision joining device was designed, comprising a support base, a support plate, a column, an adjustment structure, and a motor. The motor drives the rotating shaft and the engagement of the conical wheel to achieve synchronous rotation and movement of the support plate. Combined with the sliding of the screw and the concave plate, this ensures precise support and docking of the bottom of the hull.

Benefits of technology

This effectively prevented the hull from shifting during the welding process, reduced the difficulty of operation, and enabled precise docking and welding of the hull.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an accurate closing device in a large hull block dock, which belongs to the technical field of ship construction and comprises a supporting base, a first supporting plate and a second supporting plate are connected in the supporting base in a sliding mode, a first stand column is fixedly connected in the first supporting plate, a second stand column is fixedly connected in the second supporting plate, and the first stand column and the second stand column are connected in a sliding mode. An adjusting structure is arranged outside the supporting base, an auxiliary structure is arranged in the supporting base, the first supporting plate is in threaded connection with the outside of the auxiliary structure, and the second supporting plate is in threaded connection with the outside of the auxiliary structure. According to the folding device, the adjusting structure, the concave plate, the auxiliary disc and the second motor are arranged, the position of the auxiliary disc can be adjusted in the first supporting plate through cooperation of the rotating shaft, the first sleeve plate and the second sleeve plate, and the auxiliary disc can make contact with the center point of the bottom of the ship body conveniently according to the position of the ship body; and the phenomenon that the position of the ship body deviates in the welding process is avoided, and therefore the follow-up operation difficulty is lowered.
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Description

Technical Field

[0001] This utility model relates to the field of shipbuilding technology, specifically to a device for precise assembly of large ship hull sections in a dock. Background Technology

[0002] The precision docking device is a high-precision equipment specifically designed for shipbuilding. It is used to precisely connect and join large hull sections within the dock. It is a key piece of equipment in modern shipbuilding, ensuring the accuracy, stability, and efficiency of hull section docking, thereby improving the quality and speed of shipbuilding. The device adjusts the position using a crane, and then uses a laser positioner to place the hull sections on the same horizontal line. The docking process is automated through computer control. However, most of the working platforms within the docking device lack adjustment mechanisms, making it difficult to adjust according to the hull's position. This can lead to positional shifts during welding, increasing the difficulty of subsequent operations. Utility Model Content

[0003] The purpose of this invention is to provide a precise assembly device for large ship hull sections in a dry dock, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a precision assembly device for large ship hull sections in a dock, comprising a support base, a support plate one and a support plate two slidably connected within the support base, a column one fixedly connected within the support plate one, a column two fixedly connected within the support plate two, an adjustment structure outside the support base, an auxiliary structure inside the support base, the support plate one threadedly connected to the outside of the auxiliary structure, the support plate two threadedly connected to the outside of the auxiliary structure, the adjustment structure rotatably connected within a limiting plate, the adjustment structure rotatably connected within the support plate two, a concave plate slidably connected within the limiting plate, an auxiliary disk fixedly connected above the concave plate, the concave plate threadedly connected to the outside of the adjustment structure, a motor two at one end of the adjustment structure, the adjustment structure comprising a rotating shaft, a screw one, a screw two, a sleeve plate one and a sleeve plate two, a conical wheel three rotatably connected within the sleeve plate one, a sliding groove opened within the rotating shaft, a conical wheel one connected to one end of the screw one, and a conical wheel two connected to one end of the screw two.

[0005] As a further preferred embodiment of this technical solution, a limiting plate is fixedly connected to the outer surface of the first column, a mover is slidably connected inside the limiting plate, a hook is provided below the mover, and the rotating shaft is rotatably connected to the side of the support base.

[0006] As a further preferred embodiment of this technical solution, the first screw is rotatably connected inside the first support plate, the second screw is rotatably connected inside the second support plate, and the concave plate is threadedly connected to the outer surface of the first screw.

[0007] As a further preferred embodiment of this technical solution, the output shaft of the second motor is connected to one end of the rotating shaft, the first conical wheel meshes with the third conical wheel, and the third conical wheel is slidably connected in the groove.

[0008] As a further preferred embodiment of this technical solution, the auxiliary structure includes a forward threaded rod, a reverse threaded rod, a motor, and a bevel gear. The output shaft of the motor is connected to a bevel gear, which is rotatably connected to the left side of the support base. The bevel gear is rotatably connected to the right side of the support base. A protective belt is externally connected to the bevel gear, and the bevel gear is connected to the bevel gear through the protective belt.

[0009] As a further preferred embodiment of this technical solution, the forward threaded rod is rotatably connected to the left side above the support base, the reverse threaded rod is rotatably connected to the right side above the support base, one support plate is threaded to the outside of the forward threaded rod, the other support plate is threaded to the outside of the reverse threaded rod, and one end of the reverse threaded rod is connected to a bevel gear four.

[0010] As a further preferred embodiment of this technical solution, one end of the forward threaded rod is connected to a bevel gear three, which meshes with bevel gear two, and bevel gear four meshes with bevel gear one. The directions of bevel gear three and bevel gear four are the same, and motor one is fixedly connected to the bottom of the support base.

[0011] This utility model provides a precise docking device for large ship hull sections, which has the following advantages:

[0012] (1) This utility model sets up an adjustment structure, a concave plate, an auxiliary plate and a motor 2. When the positions of support plate 1 and support plate 2 are adjusted, the motor 2 drives the rotating shaft to rotate. Since the conical wheel 3 meshes with the conical wheel 1, screw 1 and screw 2 will rotate synchronously with the rotating shaft. The concave plate will slide on the surface of screw 1. After the auxiliary plate moves, it can support the bottom of the hull. The closing device, through the cooperation between the rotating shaft, sleeve plate 1 and sleeve plate 2, allows the position of the auxiliary plate to be adjusted within support plate 1, which is convenient to contact the bottom center point of the hull according to its position, avoiding the phenomenon of the hull shifting position during the welding process, thereby reducing the difficulty of subsequent operations.

[0013] (2) By setting up an auxiliary structure, the first motor drives the second bevel gear to rotate. The second bevel gear is connected to the first bevel gear through a protective belt. The second bevel gear and the first bevel gear will rotate synchronously. The forward thread rod and the reverse thread rod will achieve the function of synchronous rotation. The first support plate and the second support plate will achieve the function of relative movement, which facilitates the precise alignment of the hull and the subsequent welding of the hull connection. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a three-dimensional structural diagram of the support base of this utility model;

[0016] Figure 3 This is a three-dimensional structural diagram of the limiting plate of this utility model;

[0017] Figure 4 This is a three-dimensional cross-sectional schematic diagram of the adjustment structure of this utility model;

[0018] In the diagram: 1. Support base; 2. Support plate one; 3. Support plate two; 4. Column one; 5. Column two; 6. Auxiliary structure; 601. Forward threaded rod; 602. Reverse threaded rod; 603. Motor one; 604. Bevel gear one; 605. Bevel gear two; 606. Protective belt; 607. Bevel gear three; 608. Bevel gear four; 7. Adjustment structure; 701. Rotating shaft; 702. Screw one; 703. Screw two; 704. Conical wheel one; 705. Conical wheel two; 706. Sleeve one; 707. Sleeve two; 708. Conical wheel three; 709. Slide groove; 8. Limiting plate; 9. Movers; 10. Hook; 11. Concave plate; 12. Auxiliary disc; 13. Motor two. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0020] This utility model provides a technical solution: such as Figure 1 and Figure 4As shown in this embodiment, a precise assembly device for large ship hull sections in a dock includes a support base 1. A first support plate 2 and a second support plate 3 are slidably connected within the support base 1. A first column 4 is fixedly connected within the first support plate 2, and a second column 5 is fixedly connected within the second support plate 3. An adjustment structure 7 is provided outside the support base 1, and an auxiliary structure 6 is provided inside the support base 1. The first support plate 2 is threadedly connected to the outside of the auxiliary structure 6, and the second support plate 3 is threadedly connected to the outside of the auxiliary structure 6. The adjustment structure 7 is rotatably connected within a limiting plate 8 and rotatably connected within the second support plate 3. A concave plate 11 is slidably connected inside the limiting plate 8. An auxiliary disk 12 is fixedly connected above the concave plate 11. The concave plate 11 is threadedly connected to the outside of the adjusting structure 7. A motor 2 13 is provided at one end of the adjusting structure 7. The adjusting structure 7 includes a rotating shaft 701, a screw 1 702, a screw 2 703, a sleeve 1 706, and a sleeve 2 707. A conical wheel 3 708 is rotatably connected inside the sleeve 1 706. A sliding groove 709 is opened inside the rotating shaft 701. A conical wheel 1 704 is connected to one end of the screw 1 702, and a conical wheel 2 705 is connected to one end of the screw 2 703.

[0021] like Figure 1 , Figure 3 and Figure 4 As shown, a limiting plate 8 is fixedly connected to the outer surface of column 1 4, a mover 9 is slidably connected inside the limiting plate 8, a hook 10 is provided below the mover 9, a rotating shaft 701 is rotatably connected to the side of the support base 1, a screw 1 702 is rotatably connected inside the support plate 1 2, a screw 2 703 is rotatably connected inside the support plate 2 3, a concave plate 11 is threadedly connected to the outer surface of the screw 1 702, the output shaft of motor 2 13 is connected to one end of the rotating shaft 701, a conical wheel 1 704 meshes with a conical wheel 3 708, and the conical wheel 3 708 is slidably connected inside the groove 709.

[0022] By setting the slide groove 709, when the support plate 1 2 and the support plate 2 3 are moving, the sleeve 1 706 and the sleeve 2 707 will slide on the surface of the rotating shaft 701, while the conical wheel 3 708 will slide in the slide groove 709. This allows the slide groove 709 to provide some support for the rotation of the screw 1 702 and the screw 2 703. The screw 1 702 and the screw 2 703 can rotate synchronously with the rotating shaft 701, which facilitates the simultaneous adjustment of the position of the auxiliary disk 12 in the support plate 1 2 and the support plate 2 3.

[0023] like Figure 2As shown, the auxiliary structure 6 includes a forward threaded rod 601, a reverse threaded rod 602, a motor 603, and a bevel gear 604. The output shaft of the motor 603 is connected to a bevel gear 605, which is rotatably connected to the left side of the support base 1. The bevel gear 604 is rotatably connected to the right side of the support base 1. A protective belt 606 is externally connected to the bevel gear 604, which is connected to the bevel gear 605 via the protective belt 606. The forward threaded rod 601 is rotatably connected to the left side above the support base 1, and the reverse threaded rod... The rotatable connection of 602 is located on the right side above the support base 1. The support plate 1 2 is threaded to the outside of the forward threaded rod 601, and the support plate 2 3 is threaded to the outside of the reverse threaded rod 602. One end of the reverse threaded rod 602 is connected to the bevel gear 4 608, and one end of the forward threaded rod 601 is connected to the bevel gear 3 607. The bevel gear 3 607 meshes with the bevel gear 2 605, and the bevel gear 4 608 meshes with the bevel gear 1 604. The directions of the bevel gear 3 607 and the bevel gear 4 608 are the same. The motor 1 603 is fixedly connected to the bottom of the support base 1.

[0024] By setting up a protective belt 606, the motor 603 drives the bevel gear 605 to rotate. The bevel gear 605 is connected to the bevel gear 604 through the protective belt 606, so that the bevel gear 604 and the bevel gear 605 can rotate synchronously. The protective belt 606, as a transmission medium, can effectively absorb and buffer the impact and vibration during the transmission process, thereby enhancing the stability of the transmission.

[0025] This utility model provides a precise assembly device for large ship hull sections in a dry dock, the specific working principle of which is as follows:

[0026] When the assembly device is used for welding the hull, it can be installed via the hook 10 above column 4. After column 4 and column 5 are installed on a specific part of the hull, motor 603 drives bevel gear 605 to rotate. Bevel gear 605 is connected to bevel gear 604 via protective belt 606. Bevel gear 605 and bevel gear 604 rotate synchronously. The forward threaded rod 601 and the reverse threaded rod 602 also rotate synchronously. Support plate 2 and support plate 3 move on the surfaces of the forward threaded rod 601 and the reverse threaded rod 602, respectively. 5. After the movement, the internal hull will be precisely positioned. When welding is required, as support plate 1 2 and support plate 2 3 move, sleeve 1 706 and sleeve 2 707 will slide on the surface of the rotating shaft 701. When the positions of support plate 1 2 and support plate 2 3 are adjusted, the rotating shaft 701 will rotate by motor 2 13. Since conical wheel 3 708 meshes with conical wheel 1 704, screw 1 702 and screw 2 703 will rotate synchronously with the rotating shaft 701. Concave plate 11 will slide on the surface of screw 1 702. After the movement, auxiliary plate 12 can support the bottom of the hull.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A precision closing device for large hull sections in a dock, comprising a support base (1), characterised in that: The support base (1) is slidably connected with a support plate one (2) and a support plate two (3), the support plate one (2) is fixedly connected with a stand one (4), the support plate two (3) is fixedly connected with a stand two (5), the support base (1) is provided with an adjusting structure (7), the support base (1) is provided with an auxiliary structure (6), the support plate one (2) is screw connected outside the auxiliary structure (6), the support plate two (3) is screw connected outside the auxiliary structure (6), the adjusting structure (7) is rotatably connected in the limiting plate (8), the adjusting structure (7) is rotatably connected in the support plate two (3), the limiting plate (8) is slidably connected with a concave plate (11), the upper side of the concave plate (11) is fixedly connected with an auxiliary disc (12), the concave plate (11) is screw connected outside the adjusting structure (7), one end of the adjusting structure (7) is provided with a motor two (13), the adjusting structure (7) comprises a pivot (701), a screw one (702), a screw two (703), a sleeve plate one (706) and a sleeve plate two (707), the sleeve plate one (706) is rotatably connected with a conical pulley three (708), the pivot (701) is provided with a sliding slot (709), one end of the screw one (702) is connected with a conical pulley one (704), one end of the screw two (703) is connected with a conical pulley two (705).

2. A precision closing device for large hull sections in a dock according to claim 1, characterized in that: The outer surface of the stand one (4) is fixedly connected with a limiting plate (8), the limiting plate (8) is slidably connected with a mover (9), the lower side of the mover (9) is provided with a hook (10), the pivot (701) is rotatably connected on the side of the support base (1).

3. A precision closing device for large hull sections in a dock, according to claim 1, characterized in that: The screw one (702) is rotatably connected in the support plate one (2), the screw two (703) is rotatably connected in the support plate two (3), the concave plate (11) is screw connected on the outer surface of the screw one (702).

4. A precision closing device for large hull sections in a dock according to claim 1, characterized in that: The output shaft of the motor two (13) is connected with one end of the pivot (701), the conical pulley one (704) is engaged with the conical pulley three (708), the conical pulley three (708) is slidably connected in the sliding slot (709).

5. A precision closing device for large hull sections in a dock according to claim 1, characterized in that: The auxiliary structure (6) comprises a forward threaded rod (601), a reverse threaded rod (602), a motor one (603) and a bevel gear one (604), the output shaft of the motor one (603) is connected with a bevel gear two (605), the bevel gear two (605) is rotatably connected on the left side of the support base (1), the bevel gear one (604) is rotatably connected on the right side of the support base (1), the bevel gear one (604) is drivingly connected with a protective belt (606) outside, the bevel gear one (604) is connected with the bevel gear two (605) through the protective belt (606).

6. A precision closing device for large hull sections in a dock according to claim 5, characterized in that: The forward threaded rod (601) is rotatably connected to the left side above the support base (1), the reverse threaded rod (602) is rotatably connected to the right side above the support base (1), the support plate one (2) is threadedly connected outside the forward threaded rod (601), the support plate two (3) is threadedly connected outside the reverse threaded rod (602), and one end of the reverse threaded rod (602) is connected with the bevel gear four (608).

7. A precision closing device for large hull sections in a dock, according to claim 6, characterized in that: One end of the forward threaded rod (601) is connected with the bevel gear three (607), the bevel gear three (607) is engaged with the bevel gear two (605), the bevel gear four (608) is engaged with the bevel gear one (604), the direction of the bevel gear three (607) and the bevel gear four (608) is same, and the motor one (603) is fixedly connected below the support base (1).