Metallurgical crane facilitating hoisting of a ladle

Abstract

The utility model discloses a metallurgical crane convenient to hoist steel ladle, including two end beams, two end beams are installed with two main beams between, and the main beam is run with hoist car, and the top of hoist car is installed with reel mechanism, and the below of hoist car is provided with the spreader, and the spreader includes the mounting panel, and the both sides of mounting panel are provided with the support plate symmetrically, and the support plate slidingly connects in mounting panel bottom, and is provided with the two -way hydraulic cylinder between two support plates, and the two -way hydraulic cylinder fixedly connects in mounting panel bottom, the outside of support plate is installed with the speed reducer, and the input of speed reducer is installed with the drive motor, and the output of speed reducer passes through support plate and is fixedly connected with support frame, and two support grooves are set up on every support frame, and the steel ladle is set up between two support frames, and the both sides of steel ladle are provided with the support rod matched with support groove respectively, the utility model discloses through special spreader structure, can improve the stability when steel ladle hoisting, dumping.

Description

Technical Field

[0001] This utility model relates to the field of lifting equipment technology, and in particular to a metallurgical crane that is convenient for lifting molten steel ladles. Background Technology

[0002] Metallurgical cranes are used in workshops to lift and tilt molten steel ladles to complete the casting process. Most existing metallurgical cranes use a combination of main and auxiliary hooks to handle and tilt the ladles. The main hook lifts the ladle, while the auxiliary hook assists in stabilizing it and tipping it over. This structure results in a complex crane trolley, increases the difficulty of operating the main and auxiliary hooks, and reduces stability during ladle handling, making the ladle prone to swaying. Utility Model Content

[0003] The purpose of this invention is to provide a metallurgical crane that facilitates the lifting of molten steel ladles. This crane, through a special lifting device structure, can improve the stability of molten steel ladles during lifting and tilting.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a metallurgical crane for easy lifting of molten steel ladles, comprising two end beams, two main beams installed between the two end beams, a lifting trolley running on the main beams, a drum mechanism installed on the top of the lifting trolley, and a lifting device below the lifting trolley, the lifting device including a mounting plate, a movable pulley block installed on the top of the mounting plate, the mounting plate being connected to the drum mechanism via a wire rope; symmetrical support plates are arranged on both sides of the mounting plate, the support plates being slidably connected to the bottom of the mounting plate, a bidirectional hydraulic cylinder is arranged between the two support plates, the bidirectional hydraulic cylinder being fixedly connected to the bottom of the mounting plate; a reducer is installed on the outer side of the support plate, a drive motor is installed at the input end of the reducer, and the output end of the reducer passes through the support plate and is fixedly connected to a support frame; two support slots are opened on each support frame, a molten steel ladle is arranged between the two support frames, and support rods matching the support slots are respectively arranged on both sides of the molten steel ladle.

[0005] Optionally, the bottom of the lifting trolley is provided with a fixed frame, and the top of the mounting plate is provided with a guide frame that matches the fixed frame. Guide wheels are installed on the edge of the guide frame, and the guide wheels roll inside the fixed frame.

[0006] Optionally, a slewing bearing is installed between the lifting trolley and the fixed frame.

[0007] Optionally, the cross-section of the molten steel ladle is rectangular.

[0008] Optionally, the two support grooves are referred to as the front support groove and the rear support groove, respectively, and the setting height of the front support groove is higher than that of the rear support groove.

[0009] The metallurgical crane of this utility model, which facilitates the lifting of molten steel ladles, has the following advantages: (1) The support frame has four support points for the ladle, ensuring the stability of the ladle when it moves. The bidirectional hydraulic cylinder can drive the support plates on both sides to move closer or further away synchronously. It is applicable to ladles of various specifications. In addition, in an emergency, the support plates can be clamped on both sides of the ladle to fix it and reduce the probability of risk.

[0010] (2) The guide frame enables the mounting plate to move stably in the vertical direction, avoiding swaying, thereby improving the stability of steel ladle hoisting.

[0011] (3) The arrangement of the front support groove and the rear support groove can ensure that the center of gravity of the molten steel ladle changes smoothly when the support frame rotates, and improve the stability when tilting. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a schematic diagram showing the connection between the fixed frame and the guide frame.

[0014] Figure 3 This is a schematic diagram showing the connection between the support frame and the molten steel ladle. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] like Figures 1-3 As shown, a metallurgical crane for lifting molten steel ladles includes two end beams 1, with two main beams 2 installed between them. A lifting trolley 3 runs on the main beams 2, and a drum mechanism 4 is installed on top of the lifting trolley 3. A lifting device 5 is installed below the lifting trolley 3, and the lifting device 5 includes a mounting plate 6. A movable pulley block 7 is installed on top of the mounting plate 6, and the mounting plate 6 is connected to the drum mechanism 4 by a wire rope. A slewing bearing 8 is installed on the lifting trolley 3, and a fixed frame 9 is installed at the bottom of the slewing bearing 8. A guide frame 10 matching the fixed frame 9 is installed on top of the mounting plate 6, and guide wheels 11 are installed on the edge of the guide frame 10. The guide wheels 11 roll inside the fixed frame 9. The fixed frame 9 and the guide frame 10 cooperate to enable the mounting plate 6 to move stably in the vertical direction, thereby improving the stability of the lifting device 5.

[0017] Support plates 12 are symmetrically arranged on both sides of the mounting plate 6. The support plates 12 are slidably connected to the bottom of the mounting plate 6. A bidirectional hydraulic cylinder 13 is arranged between the two support plates 12. The bidirectional hydraulic cylinder 13 is fixedly connected to the middle position of the bottom of the mounting plate 6. The bidirectional hydraulic cylinder 13 can drive the support plates 12 on both sides to move closer or further away synchronously, so that the lifting device 5 can be used for various specifications of molten steel ladles 19. Moreover, in an emergency, it can also clamp the support plates 12 on both sides of the molten steel ladle 19, which can fix the molten steel ladle 19 and reduce the probability of risk. A reducer 14 is installed on the outside of the support plate 12. A drive motor 15 is installed at the input end of the reducer 14. The output end of the reducer 14 passes through the support plate 12 and is fixedly connected to a support frame 16. The drive motor 15 can drive the support frame 16 to rotate.

[0018] Each support frame 16 has two support slots, referred to as the front support slot 17 and the rear support slot 18, respectively. The front support slot 17 is set at a higher height than the rear support slot 18. A molten steel ladle 19 is set between the two support frames 16. The molten steel ladle 19 has a rectangular cross-section and is an open-top cuboid structure. Support rods 20 matching the front support slot 17 and the rear support slot 18 are set on both sides of the molten steel ladle 19.

[0019] By moving the end beam 1 and the lifting trolley 3, the lifting device 5 can be moved to the designated location. The height of the lifting device 5 can be adjusted by the drum mechanism 4, and the angle of the lifting device 5 can be adjusted by the slewing bearing 8. This allows the front support groove 17 and the rear support groove 18 of the support frame 16 to engage with the support rods 20 on both sides of the molten steel ladle 19, completing the connection between the lifting device 5 and the molten steel ladle 19. The operation process is simple. Then, by moving the end beam 1 and the lifting trolley 3, the molten steel ladle 19 is lifted to the casting position. Because the front support groove 17 and the rear support groove 18 support the molten steel ladle 19, the molten steel ladle 19 will not experience large-scale shaking or tipping. Even when tipping, it can ensure that the center of gravity of the molten steel ladle 19 changes smoothly, improving the stability of the molten steel ladle 19 during use.

[0020] The embodiments described above are merely some embodiments of this utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the protection scope of this utility model.

Claims

1. A metallurgical crane for easy lifting of molten steel ladles, comprising two end beams, two main beams installed between the two end beams, a lifting trolley running on the main beams, and a drum mechanism installed on the top of the lifting trolley, characterized in that: The lifting trolley is equipped with a lifting device, which includes a mounting plate. A movable pulley block is installed on the top of the mounting plate, and the mounting plate is connected to the drum mechanism via a wire rope. Support plates are symmetrically arranged on both sides of the mounting plate, and the support plates are slidably connected to the bottom of the mounting plate. A two-way hydraulic cylinder is installed between the two support plates and is fixedly connected to the bottom of the mounting plate. A reducer is installed on the outside of the support plate. A drive motor is installed at the input end of the reducer, and the output end of the reducer passes through the support plate and is fixedly connected to a support frame. Each support frame has two support slots, and a molten steel ladle is placed between the two support frames. Support rods matching the support slots are installed on both sides of the molten steel ladle.

2. The metallurgical crane for facilitating the lifting of molten steel ladles as described in claim 1, characterized in that: The bottom of the crane trolley is equipped with a fixed frame, and the top of the mounting plate is equipped with a guide frame that matches the fixed frame. Guide wheels are installed on the edge of the guide frame, and the guide wheels roll inside the fixed frame.

3. The metallurgical crane for facilitating the lifting of molten steel ladles as described in claim 2, characterized in that: A slewing bearing is installed between the crane trolley and the fixed frame.

4. The metallurgical crane for facilitating the lifting of molten steel ladles as described in claim 1, characterized in that: The cross-section of the molten steel ladle is rectangular.

5. The metallurgical crane for facilitating the lifting of molten steel ladles as described in claim 1, characterized in that: The two support slots are referred to as the front support slot and the rear support slot, respectively, with the front support slot being set at a higher height than the rear support slot.

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