Hoisting device for maintenance of port mobile mechanical equipment

Abstract

The utility model discloses a hoisting device for maintenance of port mobile mechanical equipment, which comprises a base, the top of the base is fixedly connected with a portal frame, the top of the portal frame is fixedly connected with a winding box, and the inside of the winding box is rotatably connected with a winding wheel. The hoisting device adopts a combined structure of the portal frame and the winding box, so that the stability and the operation precision of the hoisting device are obviously improved. The rigid frame design of the portal frame can effectively disperse stress in the hoisting process, reduces potential safety hazards caused by equipment shaking, and is suitable for complex operation environments of ports. And a winding wheel arranged in the winding box is matched with the steel wire rope, so that the lifting height is accurately controlled, and meanwhile, the problem that the steel wire rope is easy to wind in a traditional lifting mode is solved. And by arranging a sleeve, an extension column and a movable column, the bottom of the workpiece can be supported in an auxiliary mode during hoisting, the stability of the workpiece during hoisting is improved, and the device has the advantages of being good in hoisting effect and high in stability.

Description

Technical Field

[0001] This utility model relates to the field of mechanical equipment maintenance technology, specifically a hoisting device for the maintenance of mobile mechanical equipment in ports. Background Technology

[0002] In the daily operations of ports, mobile machinery such as cranes, forklifts, and loaders undertake important tasks such as cargo loading, unloading, and handling. These machines operate under high intensity and heavy loads for extended periods, inevitably leading to various malfunctions and requiring regular maintenance and upkeep. Repairing port mobile machinery often involves disassembling and installing large components, necessitating the use of lifting equipment.

[0003] Traditional lifting devices for the maintenance of mobile machinery in ports mostly consist of a simple combination of hooks and wire ropes. This type of lifting device presents several problems in practical use. First, its stability is poor. During lifting, due to the complex port environment, factors such as wind, uneven ground, and equipment movement can easily cause the hook and wire rope to sway, leading to the displacement of the lifted components. This not only increases the difficulty of installation and disassembly but also poses significant safety hazards, easily causing accidents such as parts falling, resulting in personal injury to maintenance personnel and damage to the equipment.

[0004] Secondly, traditional lifting equipment has limited applicability. Port mobile machinery is diverse, with components varying in shape, weight, and size. Existing hook and wire rope combinations can only meet the lifting needs of some regularly shaped and moderately heavy components. For irregularly shaped components with uncertain centers of gravity, such as complex crane structural parts or irregularly shaped loader buckets, traditional lifting equipment struggles to achieve stable and safe lifting, often requiring significant time and manpower for adjustments, severely impacting maintenance efficiency.

[0005] In summary, existing hoisting devices for the maintenance of port mobile machinery and equipment have significant shortcomings in terms of stability, applicability, and protective performance, and can no longer meet the needs of efficient and safe maintenance of port mobile machinery and equipment. There is an urgent need to design a new type of hoisting device to solve these problems. Utility Model Content

[0006] To address the problems mentioned in the background art, the purpose of this utility model is to provide a hoisting device for the maintenance of port mobile machinery and equipment, which has the advantages of good hoisting effect and high stability.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a hoisting device for the maintenance of port mobile machinery and equipment, comprising a base, a gantry frame fixedly connected to the top of the base, a winding box fixedly connected to the top of the gantry frame, a winding wheel rotatably connected inside the winding box, a steel wire rope wound on the surface of the winding wheel, a lifting hook fixedly connected to the end of the steel wire rope away from the winding wheel, openings on both sides of the gantry frame, movable blocks slidably connected inside the openings, and sleeves hinged to the front and rear sides of adjacent sides of the two movable blocks, an extension column slidably connected inside the sleeve, and a movable column slidably connected inside the movable block.

[0008] In a preferred embodiment of this invention, a reducer is fixedly connected to the top of the gantry frame, the output end of the reducer is fixedly connected to the winding reel, a motor is fixedly connected to the surface of the reducer, and the output end of the motor is fixedly connected to the input end of the reducer via a coupling.

[0009] As a preferred embodiment of this utility model, electric cylinders are fixedly connected to both sides inside the gantry frame, and the output end of the electric cylinder extends into the interior of the opening and is fixedly connected to the top of the movable block.

[0010] In a preferred embodiment of this invention, both the movable column and the extension column are internally threaded with a first threaded rod. The top of the first threaded rod is fixedly connected to an installation block. The top of the installation block is provided with a groove, and an insertion block is provided inside the groove. The top of the insertion block is fixedly connected to a rubber block, and the bottom of the first threaded rod is fixedly connected to a rotating handle.

[0011] As a preferred embodiment of this invention, the surface of the insert block is provided with a slot, and the internal thread of the mounting block is connected with a bolt, which is inserted into the slot.

[0012] In a preferred embodiment of this utility model, there are two bases, and the front and rear sides of the two bases away from the reducer are fixedly connected to a fixing plate. The fixing plate is internally threaded with a second threaded rod, and the bottom of the second threaded rod is fixedly connected to a brake block. The bottom of the brake block is provided with anti-slip texture, and the number of anti-slip textures is several. The top of the second threaded rod is fixedly connected to a handle.

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

[0014] 1. This utility model adopts a combined structure of a gantry frame and a winding box, significantly improving the stability and operational precision of the lifting device. The rigid frame design of the gantry frame effectively disperses stress during the lifting process, reducing safety hazards caused by equipment swaying, and is particularly suitable for the complex operating environment of ports. The winding box's built-in winding reel, in conjunction with the wire rope, enables precise control of the lifting height, while avoiding the problem of wire rope tangling in traditional lifting methods. The sleeve, extension column, and movable column provide auxiliary support to the bottom of the workpiece during lifting, improving the stability of the workpiece during lifting. This device has the advantages of good lifting effect and high stability.

[0015] 2. This utility model provides precise power control for the lifting device through the coordinated design of the reducer and motor. The application of the reducer lowers the motor's output speed while increasing torque, enabling the winding reel to smoothly wind up and unwind the wire rope, avoiding component swaying caused by excessively rapid start and stop in traditional lifting devices. The motor is connected to the input end of the reducer via a coupling, ensuring stable power transmission, reducing mechanical losses, and extending the equipment's service life. This combined design is particularly important when handling heavy equipment components, enabling precise control of lifting speed, reducing safety risks caused by inertia, and providing reliable power support for the maintenance of port machinery and equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the movable block, sleeve, extension column, and movable column structure of this utility model;

[0018] Figure 3 This utility model Figure 1 Enlarged schematic diagram of the structure at point A in the middle;

[0019] Figure 4 This utility model Figure 2 Enlarged schematic diagram of the structure at point B.

[0020] In the diagram: 1. Base; 2. Gantry; 3. Rewind box; 4. Wire rope; 5. Lifting hook; 6. Through port; 7. Movable block; 8. Sleeve; 9. Extension column; 10. Movable column; 11. Reducer; 12. Motor; 13. First threaded rod; 14. Mounting block; 15. Insert block; 16. Rubber block; 17. Bolt; 18. Fixing plate; 19. Second threaded rod; 20. Brake block; 21. Electric cylinder. Detailed Implementation

[0021] 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.

[0022] like Figures 1 to 4 As shown, a hoisting device for the maintenance of mobile machinery and equipment in a port includes a base 1. A gantry frame 2 is fixedly connected to the top of the base 1. The base 1 and the gantry frame 2 are welded together. A winding box 3 is fixedly connected to the top of the gantry frame 2 by screws and mounting parts. A winding wheel is rotatably connected inside the winding box 3 via bearings. A steel wire rope 4 is wound around the surface of the winding wheel. The steel wire rope 4 is woven from multiple sub-steel wire ropes to improve the tensile strength of the steel wire rope 4. A lifting hook 5 is fixedly connected to the end of the steel wire rope 4 away from the winding wheel. Openings 6 are provided on both sides of the gantry frame 2. The interior of the 6 is slidably connected to a movable block 7. The front and rear sides of the inner wall of the through 6 are provided with sliding grooves, and the sliding grooves are provided with sliding blocks that can slide up and down. The sliding blocks are fixedly connected to the movable block 7. The front and rear sides of the two adjacent movable blocks 7 are hinged to sleeves 8. The side of the sleeve 8 away from the movable block 7 is provided with a receiving groove. The interior of the sleeve 8 is slidably connected to an extension post 9, which slides in the receiving groove. The interior of the movable block 7 is slidably connected to a movable post 10. The right side of the movable block 7 has an opening, which is rectangular, and the movable post 10 slides left and right in the opening.

[0023] refer to Figure 1 A reducer 11 is fixedly connected to the top of the gantry 2. The output end of the reducer 11 is fixedly connected to the winding wheel. A motor 12 is fixedly connected to the surface of the reducer 11. The output end of the motor 12 is fixedly connected to the input end of the reducer 11 through a coupling.

[0024] As a technical optimization of this utility model, the coordinated design of the reducer 11 and the motor 12 provides precise power control for this lifting device. The application of the reducer 11 lowers the output speed of the motor 12 while increasing the torque, enabling the winding reel to smoothly wind up and unwind the wire rope 4, avoiding component swaying caused by excessively rapid start and stop in traditional lifting devices. The motor 12 is connected to the input end of the reducer 11 via a coupling, ensuring the stability of power transmission, reducing mechanical losses, and extending the service life of the equipment. This combined design is particularly important when handling heavy equipment components, enabling precise control of lifting speed, reducing safety risks caused by inertia, and providing reliable power support for the maintenance of port machinery and equipment.

[0025] refer to Figure 1Electric cylinders 21 are fixedly connected to both sides inside the gantry frame 2. The output end of the electric cylinder 21 extends into the interior of the opening 6 and is fixedly connected to the top of the movable block 7.

[0026] As a technical optimization of this utility model, the application of electric cylinder 21 makes the lifting and lowering control of the movable block 7 more precise. Through the extension and retraction of electric cylinder 21, the movable block 7 can slide smoothly within the opening 6, thereby driving the movable column 10, sleeve 8, and extension column 9 to move up and down. This allows the extension column 9 and movable column 10 to provide auxiliary support for the workpiece base 1, thus improving the stability of the workpiece during vertical movement and preventing it from swaying. The automated control of electric cylinder 21 also reduces errors from manual operation and improves work efficiency. In port environments, facing the maintenance needs of different types of equipment, the movable block 7 driven by electric cylinder 21 can quickly adapt to height changes, providing maintenance personnel with a convenient operating experience while enhancing the safety of the lifting process.

[0027] refer to Figure 2 Both the movable column 10 and the extension column 9 are threadedly connected to a first threaded rod 13. The top of the first threaded rod 13 is fixedly connected to a mounting block 14. The top of the mounting block 14 is provided with a groove, and the inside of the groove is provided with an insert block 15. The top of the insert block 15 is fixedly connected to a rubber block 16, and the bottom of the first threaded rod 13 is fixedly connected to a rotating handle.

[0028] As a technical optimization of this utility model, the threaded adjustment structure of the movable column 10 and the extension column 9 provides the hoisting device with flexible support point adjustment capability. When the lifting hook 5 lifts the workpiece to a lower height, the operator can move the movable column 10 left and right, and rotate the sleeve 8 as needed, thereby driving the extension column 9 and the rubber block 16 above the extension column 9 to rotate. Alternatively, the operator can appropriately pull out or retract the extension column 9 to move the rubber block 16 above the extension column 9 to a suitable support position at the bottom of the workpiece. Different support positions at the bottom of the workpiece may have different heights. By rotating the handle, the threaded transmission of the first threaded rod 13 can drive the mounting block 14, the insert block 15, and the rubber block 16 to move up and down, so that the rubber block 16 fits against the bottom of the workpiece. The design of the rubber block 16 further enhances the friction between the support point and the equipment surface, preventing slippage during hoisting. The combination structure of the groove and the insert block 15 facilitates the replacement of the rubber block 16, extending the service life of the device. This adjustable support design solves the problem of poor adaptability of traditional hoisting devices to irregular parts, improves the stability and reliability of hoisting, and reduces the risk of equipment damage.

[0029] refer to Figure 4 The surface of the insert block 15 is provided with a slot, and the internal thread of the mounting block 14 is connected to a bolt 17, which is inserted into the slot.

[0030] As a technical optimization of this utility model, the locking structure of the bolt 17 and the slot ensures a firm connection between the rubber block 16 and the mounting block 14. This design facilitates the quick replacement of rubber blocks 16 of different specifications to adapt to the materials and shapes of different equipment surfaces. The threaded connection of the bolt 17 provides reliable tightening force, preventing the rubber block 16 from loosening or falling off during hoisting. The slot design allows the insertion block 15 to be accurately positioned, ensuring the stability of the rubber block 16. This modular design improves the maintenance efficiency of the device and reduces downtime. In the high-intensity maintenance operations at ports, the quick replacement of worn rubber blocks 16 ensures that the hoisting device always maintains optimal performance, reducing maintenance costs and safety risks.

[0031] refer to Figure 1 There are two bases 1, and the front and rear sides of the two bases 1 away from the reducer 11 are fixedly connected to a fixing plate 18. The fixing plate 18 is internally threaded with a second threaded rod 19. The bottom of the second threaded rod 19 is fixedly connected to a brake block 20. The bottom of the brake block 20 is provided with anti-slip texture, and the number of anti-slip textures is several. The top of the second threaded rod 19 is fixedly connected to a handle.

[0032] As a technical optimization of this utility model, the combined structure of the double base 1 and the fixing plate 18 enhances the overall stability of the lifting device. The threaded adjustment design of the second threaded rod 19 and the brake block 20 allows the device to adapt to different ground conditions. By rotating the handle, the brake block 20 can make tight contact with the ground, preventing displacement of the device during lifting. This design is particularly important in the uneven ground environment of ports, effectively improving operational safety. The layout of the double base 1 distributes the weight during lifting, reducing pressure on the ground and lowering the risk of ground subsidence. The design of the fixing plate 18 also facilitates the fixing and movement of the device, improving operational flexibility and providing a reliable support platform for the maintenance of mobile machinery and equipment in ports.

[0033] The working principle and usage process of this utility model are as follows: When in use, first move the hoisting device to a suitable position at the port mobile machinery and equipment maintenance site. According to the ground conditions, rotate the handle on the rotating fixed plate 18 to drive the second threaded rod 19 to rotate, so that the brake block 20 is in close contact with the ground. Adjust the stability of the two bases 1 to ensure the overall stability of the hoisting device and prevent displacement during the hoisting process.

[0034] Start motor 12, which drives reducer 11 via coupling. Reducer 11 reduces speed and increases torque, driving the winding wheel in winding box 3 to rotate, slowly lowering wire rope 4, so that lifting hook 5 is lowered to a height convenient for hanging maintenance parts. The operator can connect lifting hook 5 to the lifting lug on top of the workpiece, or connect lifting hook 5 to traction belt, which will then bind and lift the workpiece.

[0035] Restart motor 12 and slowly wind up wire rope 4 via the winding wheel to lift the component to a certain height. The operator can move movable column 10 left and right, and rotate sleeve 8 as needed to rotate extension column 9 and the rubber block 16 above it. At the same time, the operator can appropriately pull out or retract extension column 9 to move the rubber block 16 above movable column 10 and extension column 9 to a suitable support position at the bottom of the component. Since the height of different support positions at the bottom of the component may vary, the mounting block 14, insert block 15 and rubber block 16 can be moved up and down by rotating the handle and using the threaded drive of the first threaded rod 13. This allows the rubber block 16 to fit tightly against the bottom of the component, providing auxiliary support and enhancing the stability of the component during hoisting.

[0036] Then start the motor 12 and the electric cylinder 21. The running speed of the motor 12 and the electric cylinder 21 can be controlled by an external controller so that the speed at which the lifting hook 5 lifts the workpiece is the same as the speed at which the movable block 7 moves upward. Throughout the lifting process, continuously monitor the operating status of components such as the motor 12, reducer 11, and winding wheel to ensure stable power transmission and smooth winding and unwinding of the wire rope 4.

[0037] The electric cylinder 21 drives the movable block 7, which in turn drives the movable column 10, extension column 9, sleeve 8 and rubber block 16 to move up and down with the workpiece. On the one hand, it can assist in lifting the workpiece and prevent it from falling. On the other hand, it can prevent the workpiece from swaying or deflecting when moving up and down, thereby improving the stability of the workpiece when it is lifted, and thus improving the safety and stability of the device when it is used.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] 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 hoisting device for the maintenance of mobile machinery and equipment in ports, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a gantry frame (2), the top of the gantry frame (2) is fixedly connected to a winding box (3), the inside of the winding box (3) is rotatably connected to a winding wheel, the surface of the winding wheel is wound with a wire rope (4), the end of the wire rope (4) away from the winding wheel is fixedly connected to a lifting hook (5), both sides of the gantry frame (2) are provided with openings (6), the inside of the openings (6) is slidably connected to movable blocks (7), and the front and rear sides of the two movable blocks (7) are hinged to sleeves (8), the inside of the sleeves (8) is slidably connected to an extension column (9), and the inside of the movable blocks (7) is slidably connected to a movable column (10).

2. The hoisting device for maintenance of port mobile machinery and equipment according to claim 1, characterized in that: A reducer (11) is fixedly connected to the top of the gantry (2). The output end of the reducer (11) is fixedly connected to the winding wheel. A motor (12) is fixedly connected to the surface of the reducer (11). The output end of the motor (12) is fixedly connected to the input end of the reducer (11) through a coupling.

3. The hoisting device for maintenance of port mobile machinery and equipment according to claim 1, characterized in that: Electric cylinders (21) are fixedly connected to both sides inside the gantry frame (2). The output end of the electric cylinder (21) extends into the interior of the opening (6) and is fixedly connected to the top of the movable block (7).

4. The hoisting device for maintenance of port mobile machinery and equipment according to claim 1, characterized in that: Both the movable column (10) and the extension column (9) are threaded with a first threaded rod (13). The top of the first threaded rod (13) is fixedly connected to an installation block (14). The top of the installation block (14) is provided with a groove, and the inside of the groove is provided with an insert block (15). The top of the insert block (15) is fixedly connected to a rubber block (16), and the bottom of the first threaded rod (13) is fixedly connected to a rotating handle.

5. A hoisting device for the maintenance of port mobile machinery and equipment according to claim 4, characterized in that: The surface of the insert (15) is provided with a slot, and the internal thread of the mounting block (14) is connected to a bolt (17), which is inserted into the slot.

6. The hoisting device for maintenance of port mobile machinery and equipment according to claim 1, characterized in that: There are two bases (1), and the front and rear sides of the two bases (1) away from the reducer (11) are fixedly connected to a fixing plate (18). The fixing plate (18) is internally threaded with a second threaded rod (19). The bottom of the second threaded rod (19) is fixedly connected to a brake block (20). The bottom of the brake block (20) is provided with anti-slip texture, and the number of anti-slip textures is several. The top of the second threaded rod (19) is fixedly connected to a handle.

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