Lifting frame for ship disassembly

Abstract

The utility model discloses a lifting frame for ship disassembly, and relates to the field of ship construction equipment, the lifting frame comprises a bearing platform and a frame body, the frame body is fixed below the bearing platform, the frame body is movably connected with one end of a lifting support arm through a middle connecting assembly, and the other end of the lifting support arm is movably connected with a base; the lifting frame comprises a frame body and a base, a lifting support arm is arranged on the frame body, a lifting hydraulic rod is arranged between the frame body and the base and used for driving the lifting support arm to unfold or contract so as to achieve lifting of the bearing table, and a side limiting part is arranged on the frame body and used for limiting the unfolding angle of the lifting support arm. The lifting hydraulic rod drives the lifting support arm to act, and the middle connecting assembly is combined to achieve lifting of the bearing table. The side limiting part limits the unfolding angle of the lifting supporting arm, the risk of excessive unfolding is avoided, a buffer spring in a base spring mounting roller absorbs impact, it is guaranteed that the structure is stable when equipment ascends and descends, and the requirement for the ship disassembly height adjusting function is met.

Description

Technical Field

[0001] This utility model relates to the technical field of ship construction equipment, specifically a lifting frame for ship dismantling. Background Technology

[0002] When dismantling high-altitude structures such as multi-deck ships and masts, lifting frames can provide a stable high-altitude work platform, avoiding workers climbing dangerous structures and reducing the risk of falls.

[0003] Publication number CN221343785U describes a ship repair lifting frame that solves the problems of existing equipment not being able to easily adjust the lifting height, move or lock the equipment, and not being able to protect the load structure from falling when it shakes or falls, thus affecting the safety and stability of the equipment. However, the lifting arm lacks an effective limiting structure for its unfolding angle, which can easily lead to the lifting frame becoming unbalanced and pose a safety hazard.

[0004] Therefore, in order to address the existing shortcomings, we conducted research and improvements and proposed a lifting frame for ship dismantling. Utility Model Content

[0005] The purpose of this invention is to provide a lifting frame for ship dismantling to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a lifting frame for ship dismantling, comprising a support platform and a frame body, wherein the frame body is fixed below the support platform, and the frame body is movably connected to one end of a lifting arm through a central connecting component, and the other end of the lifting arm is movably connected to a base; a lifting hydraulic rod is provided between the frame body and the base, and the lifting hydraulic rod is used to drive the lifting arm to extend or retract, so as to realize the lifting of the support platform.

[0007] Furthermore, the frame is provided with a side limiting part, which is used to limit the unfolding angle of the lifting arm and prevent the lifting arm from being over-extended.

[0008] Furthermore, the lifting arm is movably connected to the frame via a swivel shaft, and the outer periphery of the swivel shaft is provided with a friction-reducing structure to reduce the friction force when the lifting arm rotates.

[0009] Furthermore, the base is provided with a spring mounting roller, one end of which is provided with a support arm connecting block, and a buffer spring is installed inside the spring mounting roller. The buffer spring is used to buffer the impact force between the lifting support arm and the base.

[0010] Furthermore, one end of the lifting hydraulic rod is hinged to the bottom of the frame, and the other end is fixedly connected to the base, so that the lifting arm can be lifted and lowered by hydraulic drive.

[0011] Furthermore, the lifting arm has a cross-link structure, which can be folded and unfolded through a central pin to improve the structural stability of the lifting frame.

[0012] Furthermore, the surface of the support platform is provided with an anti-slip structure, and the frame and the support platform are connected by welding or bolts to ensure connection strength.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model uses a lifting hydraulic rod to drive the lifting arm, and together with the central connecting component, it realizes the lifting and lowering of the support platform. The side limiting part restricts the extension angle of the lifting arm to avoid the risk of over-extension, and the buffer spring inside the base spring mounting roller absorbs the impact, ensuring the structural stability of the equipment during lifting and lowering, and meeting the height adjustment function requirements of ship dismantling;

[0015] 2. This utility model uses a lifting arm connected to the frame via a swivel shaft. The friction-reducing structure lowers rotational friction and reduces component wear. A buffer spring, connected to the lifting arm and base via a support arm connecting block, buffers external impacts, reduces vibration transmission, improves equipment operational stability, extends service life, and ensures smooth ship dismantling operations. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the lifting frame for ship dismantling according to this utility model;

[0017] Figure 2 This is an enlarged view of a partial structure a (swivel joint shaft connection part) of the lifting frame for ship dismantling of this utility model;

[0018] Figure 3 This is an enlarged view of part of the lifting frame for ship dismantling of this utility model, b (buffer spring mounting part);

[0019] Figure 4 This is a schematic diagram of the tilted structure of the lifting frame for ship dismantling according to this utility model;

[0020] Figure 5 This is an enlarged view of a partial structure c (detail of the spring mounting roller) of the lifting frame for ship dismantling according to this utility model.

[0021] In the diagram: 1. Support platform; 2. Frame; 3. Middle connecting component; 4. Lifting arm; 5. Base; 6. Lifting hydraulic rod; 7. Side limiting part; 8. Rotary shaft; 9. Buffer spring; 10. Arm connecting block; 11. Spring mounting roller. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figures 1-5 As shown, a lifting frame for ship dismantling includes a support platform 1 and a frame body 2. The frame body 2 is fixed below the support platform 1, and the frame body 2 is movably connected to one end of a lifting arm 4 via a central connecting component 3. The other end of the lifting arm 4 is movably connected to a base 5. A lifting hydraulic rod 6 is provided between the frame body 2 and the base 5. The lifting hydraulic rod 6 is used to drive the lifting arm 4 to extend or retract, so as to realize the lifting of the support platform 1.

[0024] The rest are fixed side limit parts 7 at the bottom of the support platform 1, the frame 2 is connected to the middle connecting assembly 3 by bolts, the middle connecting assembly 3 has a built-in bearing seat, one end of the lifting arm 4 is installed on the bearing seat via a rotating shaft 8, and the outer periphery of the rotating shaft 8 is coated with graphite to reduce friction.

[0025] The base 5 has spring mounting rollers 11 machined on its surface. The buffer spring 9 is welded to the lifting arm 4 and the base 5 at both ends through the arm connecting block 10. The lifting hydraulic rod 6 is an HSG series hydraulic cylinder. One end is hinged to the bottom ear plate of the frame 2 through a pin, and the other end is fixed to the base 5 through a flange.

[0026] During operation, the hydraulic station supplies oil to the lifting hydraulic rod 6, the piston extends and pushes the frame 2 upward, the lifting arm 4 rotates around the swivel shaft 8 and unfolds, driving the support platform 1 to rise. The side limiting part 7 is equipped with an L-shaped limiting block. When the lifting arm 4 unfolds to 80°, the limiting block prevents it from unfolding further. When descending, the hydraulic rod retracts, the lifting arm 4 folds, and the support platform 1 descends. During the lifting process, the buffer spring 9 compresses or extends with the movement of the lifting arm 4 to absorb impact energy and maintain structural stability.

[0027] The rest are as follows: the support platform 1 and the frame 2 are connected by guide columns. The top of the frame 2 is equipped with a guide sleeve. The bottom of the support platform 1 is fixed with guide columns. The guide columns slide inside the guide sleeve. The middle connecting component 3 adopts a cross hinge structure. The lifting arm 4 is divided into upper and lower sections and connected by a middle pin. The lifting hydraulic rod 6 is a double-acting hydraulic cylinder. One end is hinged to the middle of the frame 2 and the other end is fixed to the middle of the base 5. The spring mounting roller 11 of the base 5 is equipped with a helical spring. The arm connecting block 10 is provided with a groove. The buffer spring 9 is embedded in the groove at both ends. The side limiting part 7 is a telescopic limiting rod, which is fixed to the side of the support platform 1. The rod end is equipped with a pressure sensor.

[0028] During operation, the lifting hydraulic rod 6 extends to push the frame 2, the lifting arm 4 unfolds, and the guide column slides in the guide sleeve to ensure the vertical lifting of the support platform 1. During the unfolding of the lifting arm 4, after the pressure sensor detects a contact signal, the hydraulic system stops supplying oil to achieve the limit. The swivel shaft 8 uses an oil-impregnated bearing for automatic lubrication. The buffer spring 9 is compressed and deformed when the lifting arm 4 is under force to buffer the impact of external forces. In this embodiment, the lifting accuracy is ensured by the guide structure, the pressure sensor improves the accuracy of the limit control, and the oil-impregnated bearing reduces the frequency of maintenance. All components work together to complete the ship dismantling and lifting operation.

[0029] Working principle: When using this ship dismantling lifting frame, the lifting hydraulic rod 6 acts as the power source when the lifting operation is started. One end of the rod is hinged to the bottom of the frame 2, and the other end is fixed to the base 5. The extension and retraction are controlled by the hydraulic system. When the lifting hydraulic rod 6 extends, it pushes the associated lifting arm 4 to unfold. The lifting arm 4 adopts a cross-link structure and uses the central pin to achieve folding and extension. As the lifting arm 4 unfolds, the frame 2 is displaced under the drive of the lifting hydraulic rod 6. Since the frame 2 is separated from the support platform 1 but linked with the lifting arm 4 through the central connecting component 3, it ultimately drives the support platform 1 to rise synchronously. Conversely, when the lifting hydraulic rod 6 retracts, the lifting arm 4 folds, and the support platform 1 descends, thereby precisely adjusting the height to meet the operational needs of different heights during ship dismantling.

[0030] During this process, the side limiting part 7 directly connected to the support platform 1 plays a key protective role. When the lifting arm 4 is extended with the lifting hydraulic rod 6, the side limiting part 7, as an extension structure of the support platform 1, will physically limit the extension angle of the lifting arm 4. Once the lifting arm 4 reaches the preset safe angle, the side limiting part 7 will prevent it from continuing to extend, thus avoiding the imbalance of the lifting frame structure due to excessive extension, effectively ensuring the safe operation of the equipment, and preventing the risk of tipping or damage to components caused by uncontrolled angle.

[0031] The lifting arm 4 is movably connected to the frame 2 via a swivel shaft 8. The friction-reducing structure on the outer periphery of the swivel shaft 8 is crucial in this process. When the lifting arm 4 is extended or retracted, the friction-reducing structure reduces the friction between the swivel shaft 8 and the connecting parts, making the rotation of the lifting arm 4 smoother. This not only reduces the wear of mechanical parts and extends the service life of the equipment, but also reduces energy loss during the lifting process, improves operating efficiency, and ensures that the lifting action is smooth and without jamming.

[0032] The spring mounting roller 11 on the base 5 and the buffer spring 9 together form a buffer and shock absorption system. When lifting or carrying dismantled parts of the ship on the support platform 1, the impact of external force will be transmitted to the base 5 through the lifting arm 4. At this time, the buffer spring 9 absorbs the impact force by compression or extension in the spring mounting roller 11. The two ends of the buffer spring 9 are firmly connected to the lifting arm 4 and the base 5 through the support arm connecting block 10, which converts the impact force into the elastic deformation energy of the spring, reduces the transmission of vibration to the base 5 and the frame 2, ensures the stability of equipment operation, and provides a stable bearing environment for dismantling operations.

[0033] In addition, the anti-slip structure on the surface of the support platform 1 is an important guarantee for safe operation. During the dismantling of the ship, the anti-slip structure can prevent the dismantled parts from sliding and avoid safety accidents caused by the parts falling or shifting. Although the frame 2 is separated from the support platform 1, the precise cooperation between the middle connecting component 3 and the lifting arm 4 ensures that the force is transmitted accurately and effectively during the lifting process. Combined with the structural strength of the frame 2 itself, the stability of the entire lifting frame is maintained.

[0034] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A lifting frame for ship dismantling, comprising a support platform (1) and a frame body (2), characterized in that, The frame (2) is fixed below the support platform (1), and the frame (2) is movably connected to one end of the lifting arm (4) through the middle connecting component (3), and the other end of the lifting arm (4) is movably connected to the base (5); a lifting hydraulic rod (6) is provided between the frame (2) and the base (5), and the lifting hydraulic rod (6) is used to drive the lifting arm (4) to unfold or retract, so as to realize the lifting of the support platform (1).

2. The lifting frame for ship dismantling according to claim 1, characterized in that, The frame (2) is provided with a side limiting part (7), which is used to limit the unfolding angle of the lifting arm (4) and prevent the lifting arm (4) from being over-unfolded.

3. The lifting frame for ship dismantling according to claim 1, characterized in that, The lifting arm (4) is movably connected to the frame (2) via a swivel shaft (8). The outer periphery of the swivel shaft (8) is provided with a friction-reducing structure to reduce the friction force when the lifting arm (4) rotates.

4. A lifting frame for ship dismantling according to claim 1, characterized in that, The base (5) is provided with a spring mounting roller (11), and one end of the spring mounting roller (11) is provided with a support arm connecting block (10). A buffer spring (9) is installed inside the spring mounting roller (11), and the buffer spring (9) is used to buffer the impact force between the lifting support arm (4) and the base (5).

5. A lifting frame for ship dismantling according to claim 1, characterized in that, The lifting hydraulic rod (6) is hinged at one end to the bottom of the frame (2) and fixedly connected to the base (5) at the other end. The lifting arm (4) is lifted by hydraulic drive.

6. A lifting frame for ship dismantling according to claim 1, characterized in that, The lifting arm (4) is a cross-link structure, which is folded and unfolded through the central pin to improve the structural stability of the lifting frame.

7. A lifting frame for ship dismantling according to claim 1, characterized in that, The surface of the support platform (1) is provided with an anti-slip structure, and the frame (2) is connected to the support platform (1) by welding or bolts to ensure the connection strength.

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