Rapid hoisting device for steel ladle cover

Abstract

The utility model provides a quick hoisting device for a steel ladle cover, which relates to the technical field of metallurgical equipment and adopts the technical scheme that the quick hoisting device comprises a central rib plate and a lifting hook, the lifting hook is connected with hoisting equipment, the central rib plate is rectangular, a transition bottom plate is arranged in the middle of the central rib plate, and a long screw rod and a short screw rod are arranged between the transition bottom plate and the central rib plate; the long screw rod and the short screw rod are distributed in a cross shape and are both in threaded connection with the transition bottom plate, the long screw rod is in limited rotating connection with the long edge of the center rib plate, the short screw rod is in limited rotating connection with the short edge of the center rib plate, and sliding grooves are formed in the four edges of the center rib plate. The steel ladle cover covering device has the advantages that the lifting hook can be driven through the operating rod, the lifting hook is rapidly connected with the transition bottom plate, the transition bottom plate is driven to act through rotation of the long lead screw and the short lead screw, a steel ladle cover is always in a horizontal state, rapid covering can be achieved, the working efficiency is improved, and the overall using effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of metallurgical equipment, in particular to a ladle cover rapid hoisting device. Background Art

[0002] The ladle used in the smelting process of steel mills has a large heat loss at the top during the circulation process, and the smoke produced pollutes the environment. Therefore, some steel mills have added ladle covers to the ladle, but the ladle cover needs to be opened or closed frequently during the production process.

[0003] At present, a commonly used method in production is to lift the ladle cover by means of an overhead crane in a workshop, and the ladle cover needs to be covered again after the operation is completed. However, during lifting, since molten steel is stored inside the ladle, the temperature of the ladle cover will be high, making it inconvenient for workers to hook it, and it is easy to cause burns to the workers. At the same time, since it is necessary to operate the overhead crane for repeated alignment, it also wastes time and reduces work efficiency. In addition, when covering the ladle cover, since the ladle cover is in a suspended state and is tilted, it is necessary to repeatedly align the ladle cover in order to cover it properly. Therefore, the process of covering the ladle cover is also time-consuming and labor-intensive, and it also reduces work efficiency.

[0004] Therefore, in view of the above-mentioned problems that the ladle cover needs to be repeatedly aligned when opening or closing, and the operation is inconvenient, it is an urgent problem to develop a ladle cover quick lifting device that is easy to lift and simple to fasten. Summary of the invention

[0005] The utility model provides a ladle cover quick hoisting device, which is used to solve the problems of repeated alignment, inconvenient operation and low working efficiency when the ladle cover is opened and closed.

[0006] The utility model adopts the following technical solution to solve the above technical problems: a quick lifting device for a ladle cover, comprising a central rib plate and a hook, the hook being connected to a lifting device, the central rib plate being rectangular, a transition bottom plate being arranged in the middle of the central rib plate, a long screw rod and a short screw rod being arranged between the transition bottom plate and the central rib plate, the long screw rod and the short screw rod being distributed in a cross shape, the long screw rod and the short screw rod being threadedly connected to the transition bottom plate, the long screw rod being rotationally connected to the long side of the central rib plate in a limited position, the short screw rod being rotationally connected to the short side of the central rib plate in a limited position, and the four sides of the central rib plate being connected to the transition bottom plate in a limited position. Both are provided with sliding grooves, the long screw rod and the short screw rod are slidably connected in the corresponding sliding grooves respectively, the bottom of the transition base plate is fixed to the ladle cover, and the top of the transition base plate is connected with a hook through a lifting ear. When in use, the hook is first connected to the transition base plate, and then the hook is lifted by the workshop crane, and then the ladle cover is lifted. After lifting, the position of the transition base plate is adjusted by rotating the long screw rod and the short screw rod, so that the ladle cover can be kept in a parallel state. After lifting, the ladle cover is in a parallel state, which can save the covering time, realize rapid covering and improve work efficiency.

[0007] Furthermore, a sleeve is fixed on the hook, and an operating rod is inserted into the sleeve. The operating rod can be used to apply force to the hook so that it can be quickly connected to the ladle cover.

[0008] Furthermore, the long screw rod and the short screw rod are rotatably connected to the central rib plate, and a protrusion is provided at the rotation point, which is clamped in the sliding groove to limit the axial movement of the long screw rod and the short screw rod. The protrusion can limit the axial displacement of the long screw rod and the short screw rod while meeting the movement requirements of the long screw rod and the short screw rod.

[0009] Furthermore, a baffle is fixed on the central rib plate, and a gap is opened on the baffle to meet the movement of the hook. The stability of the entire device can be enhanced through the baffle.

[0010] Furthermore, the sleeve is fixed to the hook by welding.

[0011] Furthermore, the sleeve is made of a seamless steel pipe.

[0012] It can be seen from the above technical solutions that the utility model has the following advantages:

[0013] The present invention provides a rapid lifting device for a ladle cover, which can drive a lifting hook through an operating rod to allow the lifting hook to be quickly connected to a transition base plate, and drive the transition base plate to move through the rotation of a long lead screw and a short lead screw, so that the ladle cover is always in a horizontal state, and can achieve rapid covering, improve work efficiency, and have a good overall use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the hook structure in a specific implementation manner of the utility model.

[0016] Figure 2 It is a schematic diagram of the position of the transition base plate in a specific implementation manner of the utility model.

[0017] Figure 3 It is a schematic diagram of the position of the baffle in a specific implementation manner of the utility model.

[0018] In the figure, 1. center rib plate; 2. transition bottom plate; 3. long screw rod; 4. short screw rod; 5. baffle; 6. hook; 7. sleeve; 8. operating lever. DETAILED DESCRIPTION

[0019] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0020] like Figures 1 to 3As shown, this specific embodiment provides a quick lifting device for a ladle cover, including a central rib plate 1 and a hook 6, the hook 6 is connected to a lifting device, a sleeve 7 is fixed to the hook 6, the sleeve 7 is fixed to the hook 6 by welding, the sleeve 7 is made of a seamless steel pipe, an operating rod 8 is plugged into the sleeve 7, and the hook 6 can be operated by the operating rod 8, the central rib plate 1 is rectangular, a transition base plate 2 is arranged in the middle of the central rib plate 1, a long screw rod 3 and a short screw rod 4 are arranged between the transition base plate 2 and the central rib plate 1, the long screw rod 3 and the short screw rod 4 are distributed in a cross shape, the long screw rod 3 and the short screw rod 4 are arranged in an up-down staggered manner, and the long screw rod 3 and the short screw rod 4 are both screwed with the transition base plate 2 The screw rod 3 and the short screw rod 4 are connected in a rotatable manner with the center rib plate 1, and sliding grooves are provided on the four sides of the center rib plate 1. The long screw rod 3 and the short screw rod 4 are respectively slidably connected in the corresponding sliding grooves. The long screw rod 3 and the short screw rod 4 are rotationally connected with the center rib plate 1, and a protrusion is provided at the rotation position. The protrusion is clamped in the sliding groove, and the axial movement of the long screw rod 3 and the short screw rod 4 can be limited. The protrusion can limit the axial displacement of the long screw rod 3 and the short screw rod 4 while meeting the movement requirements of the long screw rod 3 and the short screw rod 4. The bottom of the transition bottom plate 2 is fixed to the ladle cover, and the top of the transition bottom plate 2 is connected with a hook 6 through a lifting ear. A baffle plate 5 is fixed on the center rib plate 1, and a gap is provided on the baffle plate 5 to meet the movement of the hook 6.

[0021] When in use, the hook 6 is driven by the operating rod 8 to achieve a quick connection between the hook 6 and the transition base plate 2, and then the hook 6 is lifted by the workshop crane to lift the ladle cover. After lifting, the position of the transition base plate 2 is adjusted by rotating the long screw rod 3 and the short screw rod 4, so that the ladle cover can remain in a parallel state. After the lifting is completed, the ladle cover is in a parallel state, which can save the covering time, achieve rapid covering, and improve work efficiency.

[0022] The terms "upper", "lower", "outer side", "inner side" and the like (if any) in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish the relative relationship in position without giving qualitative description. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions.

[0023] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A quick lifting device for a ladle cover, comprising a central rib plate (1) and a hook (6), wherein the hook (6) is connected to a lifting device, and the central rib plate (1) is rectangular in shape, characterized in that: A transition base plate (2) is arranged in the middle of the central rib plate (1), and a long screw rod (3) and a short screw rod (4) are arranged between the transition base plate (2) and the central rib plate (1). The long screw rod (3) and the short screw rod (4) are arranged in a cross shape, and are arranged in an up-down staggered manner. The long screw rod (3) and the short screw rod (4) are both threadedly connected to the transition base plate (2), the long screw rod (3) is rotationally connected to the long side of the central rib plate (1), and the short screw rod (4) is rotationally connected to the short side of the central rib plate (1). Sliding grooves are provided on the four sides of the central rib plate (1), and the long screw rod (3) and the short screw rod (4) are respectively slidably connected in the corresponding sliding grooves. The bottom of the transition base plate (2) is fixed to the ladle cover, and the top of the transition base plate (2) is connected to a hook (6) via a lifting ear.

2. The ladle cover quick lifting device according to claim 1, characterized in that: A sleeve (7) is fixed on the hook (6), and an operating rod (8) is plugged into the sleeve (7).

3. The ladle cover quick lifting device according to claim 1, characterized in that: The long screw rod (3) and the short screw rod (4) are rotationally connected to the central rib plate (1), and a protrusion is provided at the rotation location. The protrusion is clamped in the sliding groove, and can limit the axial movement of the long screw rod (3) and the short screw rod (4).

4. The ladle cover quick lifting device according to claim 1, characterized in that: A baffle (5) is fixed on the central rib plate (1), and a gap is provided on the baffle (5) to allow the hook (6) to move.

5. The ladle cover quick lifting device according to claim 2, characterized in that: The sleeve (7) is fixed to the hook (6) by welding.

6. The ladle cover quick lifting device according to claim 2, characterized in that: The sleeve (7) is made of seamless steel pipe.

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