Double-beam metallurgical bridge crane

Abstract

The utility model relates to a double-beam metallurgical bridge crane, including the bridge crane body with double main girder, hoist trolley, hoist mechanism and hanger mechanism, and hanger mechanism includes the hanging tray, and the bottom surface both sides of hanging tray are installed two vertical opposite distribution's lifting hooks, and the top surface of hanging tray is between the car frame of hoist trolley and installs two groups of vertical opposite distribution's telescopic link at least, and the hanging tray on between two lifting hooks both sides installs the anti-swing mechanism, and two groups of anti-swing mechanism are opposite and set up in the both sides edge of hanging tray, and every group of anti-swing mechanism all includes the vertical distribution's pivot, and the top of pivot all is rotatably connected with the hanging tray and is driven coupling has the drive motor of installation on the hanging tray, and one side of the bottom of pivot all is installed the horizontal arrangement's anti-swing block, the utility model discloses when using, can improve the stability of ladle in the transfer process, to reduce the risk that molten metal in ladle spills.

Description

Technical Field

[0001] This utility model belongs to the field of lifting equipment technology, and in particular relates to a double-beam metallurgical bridge crane. Background Technology

[0002] A ladle is a container used in metallurgical processes to hold molten metal. Currently, when hoisting molten steel ladles, two hooks on a double-girder bridge crane are typically used to hook onto two lifting rods located on either side of the top of the ladle. To meet production needs, multiple molten steel ladles are usually placed in the workshop. During the metallurgical process, a set of bridge cranes is used to transfer the molten steel ladles to a designated location, and then another set of bridge cranes at the designated location lifts the molten steel ladle and pours it out.

[0003] However, for bridge cranes used to transfer molten steel ladles, the distance they need to move is relatively long, and existing bridge cranes typically lift and lower the molten steel ladle by winding and unwinding the wire rope. Therefore, if the above-mentioned setup is adopted, when the molten steel ladle is hooked by two hooks, the swinging of the wire rope during the transfer process will cause the molten steel ladle to sway, resulting in insufficient stability and a risk of spillage of the molten metal inside the ladle. Thus, there are still shortcomings and deficiencies in the existing technology. Utility Model Content

[0004] The purpose of this utility model is to provide a double-beam metallurgical bridge crane to solve the problems mentioned in the background art.

[0005] The technical solution adopted by this utility model to solve the above problems is as follows: A double-girder metallurgical bridge crane includes a bridge crane body with double main girders. A lifting trolley capable of moving along the double main girders is installed between the double main girders of the bridge crane body. A lifting mechanism with wire ropes and hooks is installed on the lifting trolley. A lifting device mechanism located below the bridge crane body is hooked onto the hooks of the lifting mechanism. The lifting device mechanism includes a horizontally arranged lifting plate that is hooked onto the hooks of the lifting mechanism. Two vertically opposite hooks are installed on both sides of the bottom surface of the lifting plate. The characteristic feature is that at least two sets of vertically opposite multi-section telescopic rods are installed between the top surface of the lifting plate and the frame of the lifting trolley. Anti-sway mechanisms are installed on the hanging platform located between the two hooks. The two sets of anti-sway mechanisms are arranged opposite each other on the two sides of the hanging platform. Each set of anti-sway mechanisms includes a vertically distributed rotating shaft. The top of the rotating shaft is rotatably connected to the hanging platform and is connected to a drive motor installed on the hanging platform. A horizontally arranged anti-sway block is installed on one side of the bottom of the rotating shaft.

[0006] Furthermore, a bearing block is coaxially mounted at the bottom of each rotating shaft, and a threaded adjusting rod is coaxially mounted at the end of each anti-sway block near the bearing block. The threaded adjusting rod is threadedly connected to the bearing block and passes through the bearing block.

[0007] Furthermore, each bearing block has a threaded adjustment rod connected to both its top and bottom ends, and the two threaded adjustment rods on the same bearing block are located on the same side of the bearing block, with the anti-sway block installed at the end of each threaded adjustment rod.

[0008] Furthermore, each anti-sway block has a buffer sleeve fitted at the end furthest from the pivot.

[0009] Furthermore, each rotating shaft is slidably fitted with a U-shaped frame, the two ends of which are connected to the bottom surface of the hanging plate, and each rotating shaft located inside the U-shaped frame is fitted with an anti-fall plate.

[0010] Furthermore, a horizontally arranged connecting plate is installed below the crane trolley and located between the two main beams of the bridge crane body. A connecting rod is fixedly connected between the connecting plate and the frame of the crane trolley. The top and bottom ends of the multi-section telescopic rod are respectively connected to the connecting plate and the lifting platform. The hook of the lifting mechanism is located below the connecting plate, and the wire rope of the lifting mechanism passes through the connecting plate through a through hole.

[0011] The beneficial effects of this utility model by adopting the above technical solution are as follows: In use, this invention still uses two hooks on the lifting mechanism to hook two lifting rods located on the outer sides of the top of the molten steel ladle. As the lifting mechanism rises and falls, the two sets of multi-section telescopic rods can retract and extend synchronously, which improves the stability of the lifting mechanism during the lifting process and reduces the swing amplitude of the lifting mechanism during the transfer of the molten steel ladle. On this basis, by setting two sets of anti-sway mechanisms, without affecting the lifting mechanism's hoisting of the molten steel ladle, the swing amplitude of the molten steel ladle relative to the hooks under inertia can be reduced during the transfer of the molten steel ladle, thereby improving the stability of the molten steel ladle during the transfer process and reducing the risk of spillage of molten metal from the molten steel ladle. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 A schematic diagram of the structure of the middle part of the device; Figure 3 for Figure 2 A three-dimensional structural diagram of the middle part of the device; Figure 4 for Figure 3 A magnified structural diagram of part A in the middle; Figure 5 This is one of the structural schematic diagrams of the present invention in its use state; Figure 6 This is the second structural schematic diagram of the present invention in use.

[0013] Reference numerals: 1. Lifting mechanism; 11. Lifting plate; 12. Lifting ring; 13. Lifting hook; 2. Anti-sway mechanism; 21. Rotating shaft; 22. Drive motor; 23. Anti-sway block; 24. Bearing block; 25. Threaded adjusting rod; 26. Buffer sleeve; 27. U-shaped frame; 28. Anti-fall plate; 3. Connecting plate; 31. Through hole; 4. Connecting rod; 5. Bridge crane body; 51. Main beam; 52. End beam; 53. Trolley traveling mechanism; 6. Lifting trolley; 7. Lifting mechanism; 71. Wire rope; 72. Hook; 8. Multi-section telescopic rod; 9. Ladle of molten steel; 91. Lifting rod. Detailed Implementation

[0014] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0015] like Figures 1 to 6 As shown, this utility model provides a double-girder metallurgical bridge crane, including a bridge crane body 5 with double main girders. Specifically, the bridge crane body 5 includes two horizontally opposite main girders 51, and two horizontally opposite end girders 52 are installed between the two ends of the two main girders 51. A trolley traveling mechanism 53 is installed on one of the end girders 52. The end girders 52, the trolley traveling mechanism 53, and the main girders 51 are all prior art. The trolley traveling mechanism 53 includes a traveling motor and traveling wheels, etc. In addition, the bridge crane body 5 also includes an electrical control system. A lifting trolley 6 that can move along the double main girders is installed between the double main girders of the bridge crane body 5. A lifting mechanism 7 with wire rope 71 and hook 72 is installed on the lifting trolley 6. The lifting mechanism 7 and the lifting trolley 6 are both prior art. Specifically, the lifting mechanism 7 is a winch with a brake in the prior art. The lifting trolley 6 includes a frame and a trolley traveling mechanism, etc.

[0016] A lifting mechanism 1 located below the bridge crane body 5 is attached to the hook 72 of the hoisting mechanism 7. The lifting mechanism 1 includes a horizontally arranged lifting plate 11 that is engaged with the hook 72 of the hoisting mechanism 7. Specifically, a lifting ring 12 that can be engaged with the hook 72 of the hoisting mechanism 7 is fixed on the top surface of the lifting plate 11. Two vertically opposite hooks 13 are installed on both sides of the bottom surface of the lifting plate 11. Figure 1For example, the two hooks 13 are located on the front and back sides of the lifting platform 11, respectively. In use, the two hooks 13 of the lifting mechanism 1 are used to hook the two booms 91 located on the outer sides of the top of the ladle 9. At least two sets of vertically opposite multi-section telescopic booms 8 are installed between the top surface of the lifting platform 11 and the frame of the trolley 6. Specifically, during the descent of the lifting mechanism 1, the multi-section telescopic booms 8 can be extended under the action of the lifting mechanism 1's own weight. During the ascent of the lifting mechanism 1, the multi-section telescopic booms 8 can be retracted by pushing them. That is, as the lifting mechanism 1 rises and falls, the two sets of multi-section telescopic booms 8 can retract and extend synchronously. This can improve the stability of the lifting mechanism 1 during the lifting process and reduce the swing amplitude of the lifting mechanism 1 during the transfer of the ladle 9.

[0017] Based on this, anti-sway mechanisms 2 are installed on the hanging platform 11 located between the two hooks 13. The two sets of anti-sway mechanisms 2 are arranged opposite to each other on the two sides of the hanging platform 11. Specifically, Figure 1 For example, two sets of anti-sway mechanisms 2 are located on the left and right sides of the hanging platform 11; each set of anti-sway mechanisms 2 includes a vertically distributed rotating shaft 21, the top of which is rotatably connected to the hanging platform 11 and is connected to a drive motor 22 mounted on the hanging platform 11. The drive motor 22 is a high-temperature resistant motor. In use, the drive motor 22 is electrically connected to the electrical control system of the bridge crane body 5 to realize the power supply and control of the start and stop of the drive motor 22; and a horizontally set anti-sway block 23 is installed on one side of the bottom of the rotating shaft 21.

[0018] Specifically, during use, the lifting mechanism 1 can be moved above the ladle 9 by the bridge crane body 5 and the lifting trolley 6, and then... Figure 5 For example, when the lifting mechanism 1 descends to a certain height to lift the molten steel ladle 9, the two sets of anti-sway mechanisms 2 can be located on both sides of the molten steel ladle 9. At this time, the anti-sway block 23 is located on the side of the rotating shaft 21 away from the molten steel ladle 9, so as not to affect the lifting mechanism 1's lifting of the molten steel ladle 9. After the lifting mechanism 1 lifts the molten steel ladle 9, the drive motor 22 can drive the rotating shaft 21 to rotate until the anti-sway block 23 on the rotating shaft 21 rotates to the desired position. Figure 6 At the position shown, there is still a gap between the anti-sway block 23 and the outer wall of the ladle 9. However, during the transfer of the ladle 9, the anti-sway block 23 can reduce the amplitude of the swing of the ladle 9 relative to the hook 13 under the action of inertia. In general, the anti-sway mechanism 2 can reduce the amplitude of the swing of the ladle 9 relative to the hook 13 under the action of inertia during the transfer of the ladle 9 without affecting the hoisting mechanism 1. This can improve the stability of the ladle 9 during the transfer process and reduce the risk of molten metal spillage from the ladle 9.

[0019] Furthermore, such as Figures 1 to 3 , Figure 5 and Figure 6 As shown, each rotating shaft 21 has a bearing block 24 coaxially mounted at its bottom end, and each anti-sway block 23 has a threaded adjusting rod 25 coaxially mounted at one end near the bearing block 24. The threaded adjusting rod 25 is threadedly connected to the bearing block 24 and passes through the bearing block 24. Specifically, in use, the horizontal distance between the anti-sway block 23 and the bearing block 24 can be adjusted by rotating the anti-sway block 23 on the rotating shaft 21. This makes it easy to adjust the anti-sway block 23 to a suitable position for use. In addition, it also makes it easy to disassemble and replace the anti-sway block 23 on the bearing block 24.

[0020] Furthermore, such as Figures 1 to 3 , Figure 5 and Figure 6 As shown, each bearing block 24 has a threaded adjusting rod 25 threadedly connected to both its top and bottom ends. The two threaded adjusting rods 25 on the same bearing block 24 are located on the same side of the bearing block 24. Each threaded adjusting rod 25 has an anti-sway block 23 installed at its end. Specifically, when the ladle 9 swings relative to the hook 13 during use, the ladle 9 will always first abut against the anti-sway block 23 located at the bottom of the bearing block 24. During long-term use, the threaded adjusting rod 25 located at the bottom of the bearing block 24 may sometimes slip, causing the anti-sway block 23 to shift. At this time, when the ladle 9 continues to swing, it can abut against the anti-sway block 23 located at the top of the bearing block 24. This can still reduce the swing amplitude of the ladle 9 relative to the hook 13, providing double protection to ensure the safe operation of the ladle 9 during the transfer process.

[0021] Furthermore, such as Figures 1 to 3 , Figure 5 and Figure 6 As shown, each anti-sway block 23 is fitted with a buffer sleeve 26 at the end away from the rotating shaft 21. Specifically, the buffer sleeve 26 can be made of high-temperature resistant rubber material. By setting the buffer sleeve 26, the rigid collision between the molten steel ladle 9 and the anti-sway block 23 can be avoided, thus playing a buffering role.

[0022] Furthermore, such as Figures 1 to 6 As shown, each rotating shaft 21 is slidably fitted with a U-shaped frame 27. Both ends of the U-shaped frame 27 are connected to the bottom surface of the hanging plate 11. The connection method here can be set as a fixed connection or a detachable fixed connection. Specifically, by setting the U-shaped frame 27, the risk of the rotating shaft 21 bending due to the collision of the molten steel ladle 9 with the anti-sway block 23 can be reduced. In addition, each rotating shaft 21 located inside the U-shaped frame 27 is fitted with a fall arrestor plate 28. Specifically, when the top of the rotating shaft 21 breaks accidentally, the fall arrestor plate 28 can prevent the rotating shaft 21 from falling, thereby reducing the safety hazard of falling objects from height.

[0023] The specific installation method of the multi-section telescopic pole 8 is as follows: Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, a horizontally positioned connecting plate 3 is installed below the trolley 6, located between the two main beams of the bridge crane body 5. A connecting rod 4 is fixedly connected between the connecting plate 3 and the frame of the trolley 6. Multiple connecting rods 4 can be provided. The top and bottom ends of the multi-section telescopic rod 8 are respectively connected to the connecting plate 3 and the lifting platform 11. The connection method here can be a fixed connection or a detachable fixed connection. The hook 72 of the lifting mechanism 7 is located below the connecting plate 3, and the wire rope 71 of the lifting mechanism 7 passes through the connecting plate 3 through the through hole 31 opened on the connecting plate 3, so as not to affect the lifting mechanism 7 to wind and unwind the wire rope 71, thereby ensuring that the lifting mechanism 1 can be raised and lowered normally.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A double-girder metallurgical bridge crane, comprising a bridge crane body with double main girders, a lifting trolley movable along the double main girders is installed between the double main girders of the bridge crane body, a lifting mechanism with wire ropes and hooks is installed on the lifting trolley, a lifting device mechanism located below the bridge crane body is hooked onto the hooks of the lifting mechanism, the lifting device mechanism includes a horizontally arranged lifting plate hooked to the hooks of the lifting mechanism, and two vertically opposite hooks are installed on both sides of the bottom surface of the lifting plate, characterized in that: At least two sets of vertically opposite multi-section telescopic rods are installed between the top surface of the hoisting platform and the frame of the hoisting trolley. Anti-sway mechanisms are installed on the hanging platform located between the two hooks. The two sets of anti-sway mechanisms are arranged opposite each other on the two sides of the hanging platform. Each set of anti-sway mechanisms includes a vertically distributed rotating shaft. The top of the rotating shaft is rotatably connected to the hanging platform and is connected to a drive motor installed on the hanging platform. A horizontally arranged anti-sway block is installed on one side of the bottom of the rotating shaft.

2. A double-girder metallurgical bridge crane according to claim 1, characterized in that: Each shaft has a bearing block coaxially mounted at its bottom end. Each anti-sway block has a threaded adjusting rod coaxially mounted at the end near the bearing block. The threaded adjusting rod is threadedly connected to the bearing block and passes through the bearing block.

3. A double-girder metallurgical bridge crane according to claim 2, characterized in that: Each bearing block has a threaded adjusting rod connected to both its top and bottom ends, and the two threaded adjusting rods on the same bearing block are located on the same side of the bearing block. Each threaded adjusting rod has an anti-sway block installed at its end.

4. A double-girder metallurgical bridge crane according to any one of claims 1 to 3, characterized in that: Each anti-sway block has a buffer sleeve fitted at the end furthest from the pivot.

5. A double-girder metallurgical bridge crane according to claim 1, characterized in that: Each rotating shaft is slidably fitted with a U-shaped frame, both ends of which are connected to the bottom surface of the hanging plate, and each rotating shaft located inside the U-shaped frame is fitted with an anti-fall plate.

6. A double-girder metallurgical bridge crane according to claim 1, characterized in that: A horizontally arranged connecting plate is installed below the trolley and located between the two main beams of the bridge crane body. A connecting rod is fixedly connected between the connecting plate and the trolley frame. The top and bottom ends of the multi-section telescopic rod are respectively connected to the connecting plate and the lifting platform. The hook of the lifting mechanism is located below the connecting plate, and the wire rope of the lifting mechanism passes through the connecting plate through a through hole.

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