Special hoisting tool for cylindrical roller workpiece

Abstract

The utility model belongs to the technical field of cylindrical roller workpiece hoisting tool equipment, and particularly relates to a special hoisting tool for a cylindrical roller workpiece, which comprises a hoisting plate, the hoisting plate is provided with a first connecting rod and a second connecting rod, and the first connecting rod and the second connecting rod are rotationally connected through a first connecting pin shaft. The lifting tool is a gravity type clamping mechanism, lifting of roller workpieces with different outer diameters can be achieved, and before the lifting tool is used, the opening of the lifting tool is locked to the fixed size through the locking clamp so that the lifting tool can enter the workpieces vertically; after the lifting appliance and the workpiece are aligned, the locking clamp is opened, meanwhile, the crane executes the ascending action, the two sets of connecting rod mechanisms and the roller claw lever clamp the workpiece under the action of gravity, the workpiece is lifted to a designated position to be installed in the horizontal direction, time and resource waste is reduced, and labor intensity is lowered. Time for dismounting the connecting shaft and the bearing box is saved, labor intensity of workers is reduced, and maintenance efficiency is improved by 50%.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting tool equipment for cylindrical roll workpieces, in particular to a special lifting tool for cylindrical roll workpieces. Background Technique

[0002] In the process of steel rolling production, as a core component, the disassembly and assembly efficiency of the roll directly affects the overall operation efficiency of the production line. The original disassembly and assembly method of the split roll of the original rolling mill requires the disconnection of the connecting shaft and the bearing box, and then the horizontal shaft is placed upright for the disassembly and assembly of the roll. This causes waste of time and resources and increases the labor intensity. Therefore, we propose a special lifting tool for cylindrical roll workpieces to solve the above problems. Content of the Utility Model

[0003] (1) Technical Problems to be Solved

[0004] In view of the deficiencies of the prior art, the utility model provides a special lifting tool for cylindrical roll workpieces, which solves the problems mentioned in the above background technique.

[0005] (2) Technical Solutions

[0006] The utility model specifically adopts the following technical solutions to achieve the above purposes:

[0007] A special lifting tool for cylindrical roll workpieces includes a lifting plate. The lifting plate is provided with a first connecting rod and a second connecting rod. The first connecting rod and the second connecting rod are rotationally connected through a first connecting pin shaft. A first roll claw lever is arranged on the second connecting rod. The first roll claw lever is rotationally connected with the second connecting rod through a second connecting pin shaft. A second roll claw lever is arranged on the first connecting rod. The second roll claw lever is rotationally connected with the first connecting rod through a third connecting pin shaft. The first roll claw lever and the second roll claw lever are rotationally connected through a fourth connecting pin shaft.

[0008] Further, a fifth connecting pin shaft is rotationally connected to the second connecting rod, and a locking clamp is arranged on the fifth connecting pin shaft.

[0009] Further, a locking shaft is fixedly connected to the front side of the first roll claw lever, and the locking shaft is clamped with the locking clamp.

[0010] Further, reinforcing rods are fixedly connected to both the first roll claw lever and the second roll claw lever.

[0011] Further, a D-shaped shackle is arranged on the lifting plate.

[0012] (3) Beneficial Effects

[0013] Compared with the prior art, the utility model provides a special lifting tool for cylindrical roll workpieces, which has the following beneficial effects:

[0014] In the present utility model, the lifting tool is a gravity clamping mechanism, which can realize the lifting of rolling mill workpieces with different outer diameters. Before using the lifting tool, use the locking clamp to lock the opening of the lifting tool to a fixed size so that the lifting tool can vertically enter the workpiece. After aligning the lifting tool with the workpiece, open the locking clamp, and at the same time, the crane performs a lifting action. The two sets of connecting rod mechanisms and the roller claw levers clamp the workpiece under the action of gravity, and lift the workpiece to a designated position for horizontal installation, reducing time and resource waste, lowering labor intensity. Currently, a cylindrical rolling mill workpiece lifting tool is used, saving the time for disassembling and assembling the connecting shaft and bearing box, reducing the labor intensity of workers, and increasing the maintenance efficiency by 50%. Description of the Drawings

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 2 It is a three-dimensional structural schematic diagram of the other side of the present utility model;

[0017] Figure 3 It is the present utility model Figure 2 The enlarged structural schematic diagram of area A in it.

[0018] In the figure: 1, lifting plate; 2, first connecting rod; 3, second connecting rod; 4, first coupling pin shaft; 5, first roller claw lever; 6, second coupling pin shaft; 7, second roller claw lever; 8, third coupling pin shaft; 9, fourth coupling pin shaft; 10, reinforcing rod; 11, D-shaped shackle; 12, fifth coupling pin shaft; 13, locking clamp; 14, locking shaft. Specific Embodiments

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

[0020] Embodiment

[0021] As Figures 1-3As shown in the figure, a special lifting tool for cylindrical roll workpieces proposed in an embodiment of the present utility model includes a lifting plate 1. The lifting plate 1 is provided with a first connecting rod 2 and a second connecting rod 3. The first connecting rod 2 and the second connecting rod 3 are rotatably connected through a first connecting pin shaft 4. A first roll claw lever 5 is provided on the second connecting rod 3. The first roll claw lever 5 is rotatably connected to the second connecting rod 3 through a second connecting pin shaft 6. A second roll claw lever 7 is provided on the first connecting rod 2. The second roll claw lever 7 is rotatably connected to the first connecting rod 2 through a third connecting pin shaft 8. The first roll claw lever 5 and the second roll claw lever 7 are rotatably connected through a fourth connecting pin shaft 9. The lifting tool is a gravity-type clamping mechanism, which can realize the lifting of roll workpieces with different outer diameters. Before using the lifting tool, use a locking clamp 13 to lock the opening of the lifting tool to a fixed size, so as to facilitate the vertical entry of the lifting tool into the workpiece. After the lifting tool is aligned with the workpiece, open the locking clamp 13, and at the same time, the crane performs a lifting action. The two sets of link mechanisms and roll claw levers clamp the workpiece under the action of gravity, and lift the workpiece to a designated position for horizontal installation, reducing time and resource waste, reducing labor intensity. Now, using the cylindrical roll workpiece lifting tool saves the time for disassembling and assembling the connecting shaft and bearing box, reduces the labor intensity of workers, and improves the maintenance efficiency by 50%.

[0022] In some embodiments, a fifth connecting pin shaft 12 is rotatably connected to the second connecting rod 3. A locking clamp 13 is provided on the fifth connecting pin shaft 12. A locking shaft 14 is fixedly connected to the front side of the first roll claw lever 5. The locking shaft 14 is clamped with the locking clamp 13 to lock the opening of the lifting tool to a fixed size, so as to facilitate the vertical and lateral entry of the lifting tool into the roll workpiece, and make the lifting tool suitable for use in different working conditions.

[0023] In some embodiments, reinforcing rods 10 are fixedly connected to both the first roll claw lever 5 and the second roll claw lever 7. The arrangement of the reinforcing rods 10 makes the first roll claw lever 5 and the second roll claw lever 7 more stable.

[0024] In some embodiments, a D-shaped shackle 11 is provided on the lifting plate 1. Setting the D-shaped shackle 11 on the lifting plate 1 can ensure the stable and reliable connection between the lifting tool and the object to be lifted, and avoid accidental detachment or loosening during the lifting process.

[0025] Working principle or structural principle, when in use, before using the lifting tool, first adjust the position of the locking card 13, and use the locking shaft 14 to lock it to a size that matches the outer diameter of the roll workpiece to be lifted. This step ensures that the lifting tool can vertically enter the interior of the roll workpiece to prepare for subsequent lifting operations, and vertically lower the adjusted lifting tool to the top of the roll workpiece to ensure that the opening of the lifting tool is aligned with the central axis of the roll workpiece. The key to this step is to ensure that the lifting tool can accurately cooperate with the roll workpiece to provide a basis for subsequent clamping and lifting operations. After the lifting tool and the roll workpiece are aligned, release the locking card 13 so that it no longer limits the opening size of the lifting tool. At this time, the two sets of connecting rod mechanisms of the lifting tool (composed of a first connecting rod 2, a second connecting rod 3, a first connecting pin 4 and a second connecting pin 6) and their corresponding roller claw levers (a first roller claw lever 5 and a second roller claw lever 7) are in a free state. Subsequently, the crane is started to perform an ascending action. As the lifting tool rises, the two sets of connecting rod mechanisms are connected to the roller workpiece. The rod mechanism and its roller claw levers begin to tighten inward under the gravity of the roll workpiece, and the two sets of roller claw levers apply clamping force to both sides of the roll workpiece respectively to ensure that the roll workpiece is stably clamped in the lifting tool. When the roll workpiece is stably clamped, the crane continues to perform the rising action to lift the roll workpiece to the specified position. After reaching the specified position, the operation of the crane is adjusted to achieve accurate installation of the roll workpiece in the horizontal direction. After the installation of the roll workpiece is completed, the lifting tool and the roll workpiece clamped by it are lifted to a safe height by the crane, and then the clamping force of the roller claw lever is released to separate the roll workpiece from the lifting tool. Finally, the lifting tool is reset to the initial state for the next lifting operation, which can realize the lifting of roll workpieces with different outer diameters, reduce time and resource waste, and reduce labor intensity. The cylindrical roll workpiece lifting tool is now used, and the roll can be directly loaded and unloaded horizontally on the rolling mill, saving time for disassembling and assembling connecting shafts and bearing boxes, reducing workers' labor intensity, and improving maintenance efficiency by 50%.

[0026] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A special lifting tool for cylindrical roll workpieces, comprising a lifting plate (1), characterized in that: The suspension plate (1) is provided with a first connecting rod (2) and a second connecting rod (3). The first connecting rod (2) and the second connecting rod (3) are rotatably connected through a first connecting pin shaft (4). A first roller claw lever (5) is provided on the second connecting rod (3). The first roller claw lever (5) is rotatably connected to the second connecting rod (3) through a second connecting pin shaft (6). A second roller claw lever (7) is provided on the first connecting rod (2). The second roller claw lever (7) is rotatably connected to the first connecting rod (2) through a third connecting pin shaft (8). The first roller claw lever (5) and the second roller claw lever (7) are rotatably connected through a fourth connecting pin shaft (9).

2. The special lifting tool for cylindrical roller workpieces according to claim 1, characterized in that: A fifth connecting pin shaft (12) is rotatably connected to the second connecting rod (3), and a locking clamp (13) is provided on the fifth connecting pin shaft (12).

3. The special lifting tool for cylindrical roll workpieces according to claim 2, characterized in that: A locking shaft (14) is fixedly connected to the front side of the first roller claw lever (5), and the locking shaft (14) is clamped with the locking clamp (13).

4. The special lifting tool for cylindrical roll workpieces according to claim 1, characterized in that: Reinforcing rods (10) are fixedly connected to both the first roller claw lever (5) and the second roller claw lever (7).

5. The special lifting tool for cylindrical roll workpieces according to claim 1, characterized in that: A D-shaped shackle (11) is provided on the suspension plate (1).

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