Stable operation of a slag pot grab hoist for steelmaking

Abstract

The utility model relates to the technical field of slag basin hoisting tool, and disclose a work stable's steel -making with slag basin grab hook type lifting appliance, including sling, the top end installation is in the navigation of sling, is mainly used for hoisting, transport basin body, the both sides symmetrical connection of basin body have the lug, the bottom end symmetrical connection of sling has the lifting joint piece, every lifting joint piece top side all are connected on the sling, the recess is set up in the middle part of lifting joint piece, and the groove body opening is located at the top, and the recess bottom is the semicircle structure corresponding with the lug outside, can be connected in the outside of lug, the top of lifting joint piece is provided with the apron. The work stable's steel -making with slag basin grab hook type lifting appliance, through the traditional hook structure of slag basin lifting appliance is set up as the opening groove structure, and through the cooperation of limiting rod, can control the grab hook activity and be clamped in the outside of slag basin basin along when the lug part and slag basin double -ear contact, thereby increase the stress point when the slag basin hoisting, promote the stability when the slag basin hoisting transportation.

Description

Technical Field

[0001] This utility model relates to the technical field of slag pot lifting tools, specifically a stable working slag pot grab hook lifting tool for steelmaking. Background Technology

[0002] Slag pot lifting devices are specialized tools used for lifting steelmaking slag pots. They primarily consist of a hook structure, with the hooks attached to both sides of the slag pot for lifting. However, in actual operation, there are only two points of leverage. Due to the large mass of the slag pot, it is prone to swaying under external influences such as changes in crane speed, leading to insufficient stability and potential safety hazards. Furthermore, the existing slag pot lifting devices rely entirely on the experience of the workers for connection efficiency, resulting in low efficiency and potentially slowing down the production process. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a stable slag pot grab hook lifting device for steelmaking, solving the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a stable steelmaking slag pot grab hook lifting device, comprising a lifting rope, the top of which is mounted on an overhead crane and is mainly used for lifting and transporting the pot. The pot has symmetrically connected lugs on both sides. The bottom of the lifting rope is symmetrically connected to lifting connectors, with both sides of the top of each connector connected to the lifting rope. A groove is formed in the middle of each connector, with the groove opening at the top. The bottom of the groove has a semi-circular structure corresponding to the outer side of the lug, allowing it to fit over the lug. A cover plate is positioned above the connector and is fixedly connected to the lifting rope. The distance between the cover plate and the two sides of the connector is greater than the width of the pot and less than the distance between the two lugs.

[0005] Optionally, the two sides inside the upper tank of the lifting connector are inclined, the width of the top of the tank is greater than the width of the bottom of the tank, and the tank is symmetrical about left and right with the stress point of the top of the lifting rope as the reference; a groove is opened on the outer side of the lifting connector.

[0006] Optionally, the lifting connector is symmetrically equipped with hooks at both ends. The bottom of the hooks is movably connected by a torsion spring shaft. In its natural state, the hooks are tilted to the outside of the lifting device. The top of the hooks is connected to two plates, one above the other. The plates are close to the side facing the lifting device, with the outer end of the upper plate bent upward and the lower plate bent downward. The hooks are made of high-temperature resistant material, and the torsion spring shaft at the bottom of the hooks is also a high-temperature resistant model.

[0007] Optionally, the outer side of the lifting member is symmetrically provided with limiting members. The middle part of the limiting member is movably sleeved on the cylinder on the outer side of the lifting member. The limiting member can deflect freely. The two ends of the limiting member are respectively connected to a limiting rod and a force rod. The limiting rod is located near the end of the grab hook and below the grab hook, and is in contact with the grab hook. The other end of the limiting member is connected to the force rod. The outer end of the force rod is located in the groove, and the force rod is tilted in the natural state of the grab hook. The outer end of the force rod is connected to a contact plate. The contact plate has an arc plate structure. In the non-working state, its top end is higher than the bottom surface of the contact groove of the lifting member and the hanging ear.

[0008] Optionally, when the lifting connector is attached to the outside of the lug, the lug applies pressure to the contact plate and causes it to move downward. At this time, the limit rod tilts upward and causes the grab hook to deflect inward to the inside of the lifting device. After the lifting connector lifts the slag pot, the grab hook deflects to a vertical position, and the plate at the top of the grab hook is engaged with the outside of the edge of the pot.

[0009] Optionally, the cover plate is made of a high-temperature resistant material and has several grids.

[0010] Optionally, the outer edge of the cover plate is connected to several auxiliary plates. The auxiliary plates are located in a position that does not coincide with the lifting component. The auxiliary plates are composed of two parts of the same length, the upper half of which is fixedly connected to the cover plate, and the lower half of which is movably installed through a torsion spring shaft. The external force required for the torsion spring to deflect is much less than the weight of the cover plate itself. Therefore, when the lifting component is hoisted outside the basin, if the auxiliary plate contacts the edge of the basin, it can be deflected by the torsion spring shaft without hindering the movement of the lifting device. The bottom end of the auxiliary plate is bent outward, and in its natural state, it is tilted outward as a whole. When the top end of the lifting component coincides with the bottom end of the hanging ear at a horizontal position, the bottom end of the auxiliary plate is slightly lower than the top end of the basin.

[0011] In addition, the entire lifting device is made of high-temperature resistant materials that can meet the needs of steelmaking.

[0012] This utility model provides a stable working hook-type lifting device for slag pots used in steelmaking, which has the following advantages: 1. This stable steelmaking slag pot grab hook lifting tool, by changing the traditional hook structure of the slag pot lifting tool to an open slot structure, and with the cooperation of the limit rod, can control the movement of the grab hook and lock it on the outside of the slag pot edge when the hooking part contacts the double ears of the slag pot, thereby increasing the stress points during slag pot lifting and improving the stability of slag pot lifting and transportation.

[0013] 2. This stable steelmaking slag pot grab hook lifting tool, by connecting a cover plate to the lifting rope, can isolate the top of the slag pot, providing two-way protection without affecting the workers' view. At the same time, the opening slot is set as an flared opening, which can facilitate the docking of the lifting tool with the two ears of the slag pot, greatly improving the efficiency of the lifting tool when lifting the slag pot. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the combined structure of the present invention and the slag basin; Figure 3 This is a partial cross-sectional structural diagram of the present invention and the slag basin; Figure 4 This utility model Figure 3 Enlarged structural diagram at point A; Figure 5 This is a schematic diagram of the limiting component in this utility model.

[0015] In the diagram: 1. Lifting rope; 2. Lifting connector; 21. Groove; 3. Limiting component; 31. Limiting rod; 32. Force-bearing rod; 321. Contact plate; 4. Hook; 5. Cover plate; 51. Auxiliary plate; 6. Basin body; 61. Hanging lug. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] Please see Figure 1-2 This utility model provides a technical solution: it includes a lifting rope 1, the top of which is connected to an overhead crane to lift the basin 6. The basin 6 has symmetrically connected hanging ears 61 on both sides. The lifting rope 1, combined with the lifting device, enables the lifting and transportation of the basin 6. Two lifting connectors 2 are symmetrically connected to the bottom of the lifting rope 1. The top two sides of the lifting connectors 2 are connected to the lifting rope 1 respectively. A slot is provided in the middle of the lifting connector 2, and the bottom of the slot is a semi-circular structure, which facilitates the connection of the lifting connector 2 to the outside of the hanging ears 61. By replacing the transmission hook structure with the lifting connector 2, the stress points between the slag basin and the lifting device are increased, thereby improving the stability of the slag basin during lifting and transportation. Furthermore, the slot opening of the lifting connector 2 faces upwards, and the slot opening is an flared groove, which is more convenient for connection with the hanging ears 61 compared to the existing hook structure, improving the connection efficiency between the lifting device and the slag basin, thereby increasing production efficiency.

[0018] Please see Figure 3-4 The lifting member 2 has an externally movable limiter 3. The left and right ends of the lifting member 2 are equipped with hooks 4, which are connected via a torsion spring shaft. The spring is heat-resistant and adaptable to the steelmaking environment. In its natural state when connected to the spring shaft, the hooks 4 are in an outward-deflected position, thus not affecting the movement of the lifting member 2 outside the slag basin. (Please refer to...) Figure 5The limiting member 3 consists of a limiting rod 31 and a force-bearing rod 32. The middle part of the limiting member 3 is movably sleeved on the outer cylinder of the lifting member 2, allowing it to deflect freely. The limiting rod 31 is located near the end of the grab hook 4, while the force-bearing rod 32 is located near the middle of the lifting member 2. A groove 21 is provided in the middle of the lifting member 2. A contact plate 321 is connected to the outer end of the force-bearing rod 32, extending into the groove 21. The limiting rod 31 contacts the outer side of the grab hook 4. When the grab hook 4 is in its natural state, the limiting rod 31 is limited by the position of the grab hook 4, causing the contact plate 321 to be in the groove. When the trough 21 is in a raised state, and the lifting component 2 is sleeved on the outside of the hanging ear 61 and moves upward to lift the slag pot, the hanging ear 61 applies pressure to the contact plate 321, causing the limit rod 31 to rise and apply pressure to the grab hook 4. The grab hook 4 deflects inward, and the top of the grab hook 4 is engaged with the outside of the rim of the pot body 6, thereby further increasing the stress points between the slag pot and the lifting device, greatly improving the stability of the slag pot during lifting and transportation. At the same time, when the lifting component 2 leaves the hanging ear 61, the grab hook 4 will return to its original position under the action of the torsion spring shaft, which will not affect the detachment of the lifting component 2 and facilitates manual operation.

[0019] Please see Figure 2 The top structure of the grab hook 4 is shown in the figure. Its outer opening is bent outward, which can facilitate the docking with the edge of the slag basin. The overall length of the grab hook 4 and the distance between its bottom installation position and the edge of the basin are adapted to each other, so that the grab hook 4 can be just locked on the outside of the basin edge when the lifting connector 2 is lifted.

[0020] Please see Figure 1 Above the lifting connector 2 is a cover plate 5 connected to the lifting rope 1. The cover plate 5 is made of high temperature resistant material and has several grids. It can provide protection without affecting the observation of the staff, and also support the lifting rope 1. This is conducive to the stability of the position of the lifting connector 2 and can also prevent objects from falling from the height into the slag basin, thus improving production safety.

[0021] Please see Figure 2Several auxiliary plates 51 are connected to the outer edge of the cover plate 5. The auxiliary plates 51 are located in a position that does not overlap with the lifting member 2. The auxiliary plates 51 are composed of two parts of the same length, the upper half of which is fixedly connected to the cover plate 5, and the lower half is movably installed through a torsion spring shaft. The external force required for the torsion spring to deflect is much less than the weight of the cover plate 5 itself. Therefore, when the lifting member 2 is hoisted outside the basin 6, if the auxiliary plate 51 contacts the edge of the basin 6, it can be deflected by the torsion spring shaft without hindering the movement of the lifting device. The bottom end of the auxiliary plate 51 is bent outward, and in its natural state, it is tilted outward. When the top end of the lifting member 2 coincides with the bottom end of the hanging ear 61 at a horizontal position, the bottom end of the auxiliary plate 51 is slightly lower than the top end of the basin 6. Therefore, if the auxiliary plate 51 contacts the basin 6 and deflects, it can also return to its original position in time after the lifting member 2 is roughly aligned. This can help the lifting member 2 to connect with the slag basin and facilitate external observation during manual operation.

[0022] In summary, this stable steelmaking slag pot grab hook lifting device, when in use, is operated by installing the top of the lifting rope 1 onto the overhead crane according to existing technical requirements. The crane then controls the lifting connector 2 to move to one side of the slag pot, ensuring the top of the connector 2 is lower than the bottom of the lug 61. At this point, the cover plate 5 remains above the pot body 6. Next, the connector 2 is moved below the lug 61, and the connector 2 is moved upwards, causing the lug 61 to engage within it. Once the lug 61 is inside the connector 2, it exerts pressure on the contact plate 321, causing the contact plate 321 to bear force. This causes the limiting rod 31 to tilt upwards, deflecting upwards and squeezing the grab hook 4. When the groove on the lifting member 2 is in complete contact with the hanging ear 61, the top of the grab hook 4 is engaged with the outer edge of the basin 6 under the action of the limiting rod 31. The overhead crane controls the lifting rope 1 to move upwards, and the lifting member 2 supports the overall movement of the slag basin. After the slag basin moves to the corresponding area, the lifting member 2 is controlled to move downwards and make its top end lower than the bottom of the hanging ear 61. Then the lifting member 2 is moved to one side until the lifting member 2 leaves the slag basin. During this process, if the bottom end of the auxiliary plate 51 touches the edge of the basin 6, it will deflect accordingly.

[0023] 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 stable steelmaking slag pot grab hook lifting device, comprising a lifting rope (1), the top end of which is installed on an overhead crane, mainly used for lifting and transporting the pot body (6), with symmetrical lugs (61) connected to both sides of the pot body (6), characterized in that: The bottom end of the suspension rope (1) is symmetrically connected to the suspension member (2). The top two sides of each suspension member (2) are connected to the suspension rope (1). The middle part of the suspension member (2) is provided with a groove. The groove opening is located at the top, and the bottom of the groove is a semi-circular structure corresponding to the outer side of the hanging ear (61), which can be fitted onto the outside of the hanging ear (61). A cover plate (5) is arranged above the suspension member (2). The cover plate (5) is fixedly connected to the suspension rope (1), and the distance between the cover plate (5) and the two sides of the suspension member (2) is greater than the width of the basin (6) and less than the distance between the two hanging ears (61).

2. The steelmaking slag pot grab hook lifting device with stable operation according to claim 1, characterized in that: The two sides inside the upper tank of the lifting member (2) are inclined surfaces, the width of the top of the tank is greater than the width of the bottom of the tank, and the tank is symmetrical about the left and right with the top of the lifting rope (1) as the reference; a groove (21) is provided on the outer side of the lifting member (2).

3. The steelmaking slag pot grab hook lifting device with stable operation according to claim 2, characterized in that: The lifting device (2) is symmetrically equipped with hooks (4) at both ends. The bottom of the hooks (4) is movably connected through a torsion spring shaft. In its natural state, the hooks (4) are tilted to the outside of the lifting device. The top of the hooks (4) is connected to two plates, one above the other. The plates are close to the side facing the lifting device, and the outer end of the upper plate is bent upward and the lower plate is bent downward. The hooks (4) are made of high-temperature resistant material, and the torsion spring shaft at the bottom of the hooks (4) is also a high-temperature resistant type.

4. The steelmaking slag pot grab hook lifting device with stable operation according to claim 3, characterized in that: The lifting member (2) is symmetrically provided with limiting members (3) on its outer side. The middle part of the limiting member (3) is movably sleeved on the cylinder on the outer side of the lifting member (2). The limiting member (3) can deflect freely. The two ends of the limiting member (3) are respectively connected to the limiting rod (31) and the force rod (32). The limiting rod (31) is located near the end of the grab hook (4) and below the grab hook (4), and is in contact with the grab hook (4). The other end of the limiting member (3) is connected to the force rod (32). The outer end of the force rod (32) is located in the groove (21), and the grab hook (4) in its natural state makes the force rod (32) tilted. The outer end of the force rod (32) is connected to the contact plate (321). The contact plate (321) is an arc plate structure. In the non-working state, its top end is higher than the bottom surface of the contact groove of the lifting member (2) and the hanging ear (61).

5. The steelmaking slag pot grab hook lifting device with stable operation according to claim 4, characterized in that: When the lifting connector (2) is sleeved on the outside of the hanging ear (61), the hanging ear (61) applies pressure to the contact plate (321) and causes it to move downward. At this time, the limiting rod (31) tilts upward and causes the grab hook (4) to deflect towards the inside of the lifting device. After the lifting connector (2) lifts the slag basin, the grab hook (4) deflects to a vertical state, and the plate at the top of the grab hook (4) is engaged with the outside of the edge of the basin.

6. The steelmaking slag pot grab hook lifting device with stable operation according to claim 1, characterized in that: The cover plate (5) is made of a high temperature resistant material, and several grids are provided on the cover plate (5).

7. A stable steelmaking slag pot grab hook lifting device according to claim 6, characterized in that: The outer edge of the cover plate (5) is connected to several auxiliary plates (51). The auxiliary plates (51) are located in a position that does not overlap with the lifting member (2). The auxiliary plates (51) are composed of two parts of the same length, the upper half of which is fixedly connected to the cover plate (5), and the lower half is movably installed through a torsion spring shaft. The external force required for the torsion spring to deflect is much less than the weight of the cover plate (5) itself. Therefore, when the lifting member (2) is hoisted outside the basin (6), if the auxiliary plate (51) contacts the edge of the basin (6), it can deflect through the torsion spring shaft without hindering the movement of the lifting device. The bottom end of the auxiliary plate (51) is bent outward, and in its natural state, it is tilted outward as a whole. When the top end of the lifting member (2) coincides with the bottom end of the hanging ear (61) at a horizontal position, the bottom end of the auxiliary plate (51) is slightly lower than the top end of the basin (6).

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