Steelmaking ladle lifting device

Abstract

The utility model relates to the field of steelmaking smelting equipment, in particular to a steelmaking steel ladle lifting device which comprises a supporting frame. The moving trolley is arranged at the top of the supporting frame in a sliding mode, the sliding direction of the moving trolley is the Y direction, and a steel ladle lifting oil cylinder is vertically arranged on the moving trolley; the gantry sling is arranged at the bottom of the telescopic end of the steel ladle lifting oil cylinder, and a lifting hook is arranged at the bottom of the gantry sling; and the buggy ladles are arranged in a sliding mode in the X direction, and the steel ladles are placed on the buggy ladles. The steelmaking steel ladle lifting device meets the working condition requirements of steel ladle lifting and ladle setting; the device is simple in structure, the oil cylinder provides power for steel ladle hoisting, ladle setting and transportation, operation is stable, impact on a buggy ladle during ladle setting is reduced, the steel ladle hoisting, ladle setting and operation periods are greatly shortened, and the service life of the device is prolonged. Meanwhile, an operator operates on the ground, the operation space is large, the sight is good, and the operation can be completed by a single person. Use and replacement are convenient, the accident rate is low, reliability is high, and productivity is improved.

Description

Technical Field

[0001] The utility model relates to the field of steelmaking and smelting equipment, in particular to a steelmaking ladle lifting device. Background Art

[0002] Currently, steelmaking ladles are hoisted using a crane, requiring the crane operator to be experienced in lifting and seating the ladle. The specific process is as follows: tapping from the primary furnace → the ladle car moves to the lifting position (the crane moves to the lifting position) → the crane hook lowers → hooks up → the crane hook raises (lifts the ladle) → the crane moves to the seating position → the crane hook lowers (seating the ladle) → unhooking → the crane hook raises → the ladle car moves out.

[0003] Overhead crane hoisting has the following disadvantages: high requirements are placed on the crane operator, who must have extensive experience; crane operators work at high altitudes with limited vision, making observation inconvenient and resulting in a high accident rate; cooperation between ground personnel and crane operators is required to lift the ladle and the ladle; the ladle lifting and ladle seating cycles are long; the crane operation rate is increased; the investment is large, and maintenance is inconvenient and the overhaul time is long. Utility Model Content

[0004] The utility model aims to solve the problems in the background technology such as inconvenient equipment maintenance, high accident rate and potential safety hazards, long shutdown time for maintenance affecting smelting, resulting in reduced steel production and increased operating costs, and proposes a steelmaking ladle lifting device.

[0005] The technical solution of the utility model is: a steelmaking ladle lifting device, comprising:

[0006] Support frame;

[0007] The movable trolley is slidingly arranged on the top of the support frame, and the sliding direction of the movable trolley is Y direction. The ladle lifting cylinder is vertically arranged on the movable trolley;

[0008] The gantry spreader is installed at the bottom of the telescopic end of the ladle lifting cylinder, and a hook is provided at the bottom of the gantry spreader;

[0009] and a ladle car, which is arranged to slide along the X direction, on which a ladle is placed, and two ladle cars are arranged.

[0010] Preferably, it also includes a driving cylinder, which is arranged on the top of the support frame along the Y direction, and the end of the cylinder rod of the driving cylinder is connected to the moving trolley.

[0011] Preferably, it also includes a hydraulic station, which is controllably connected to the ladle lifting cylinder and the driving cylinder.

[0012] Preferably, both ends of the ladle lifting cylinder are rotatably connected to the mobile trolley and the gantry crane through pins.

[0013] Preferably, the gantry crane is provided with heat insulation protection.

[0014] Preferably, the gantry crane is a shoulder-pole beam structure, and the beam is a rectangular structure welded together with steel plates.

[0015] Preferably, two plate-type hooks are provided on the crossbeam according to the ear-axis distance of the ladle, and the crossbeam and the plate-type hooks are connected by a pin shaft.

[0016] Compared with existing technologies, this utility model offers the following beneficial technical advantages: it meets the operating requirements for ladle lifting and seating, effectively meeting operational requirements while reducing manufacturing and maintenance costs. Its simple structure, with hydraulic cylinders powering the lifting, seating, and transportation of the ladle, ensures smooth operation and minimizes impact on the ladle car during seating. This significantly shortens the operating cycle of both ladle lifting and seating, extending the life of the equipment. Furthermore, the operator operates from the ground, providing ample operating space and excellent visibility, allowing a single operator to perform the operation. It is easy to use and replace, has a low accident rate, and offers high reliability, improving productivity. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of an embodiment of the utility model;

[0018] Figure 2 This is the main view of the ladle hoisting from a high position;

[0019] Figure 3 This is the main view of the ladle sitting at the low position;

[0020] Figure 4 This is the side view of the ladle sitting at the low position;

[0021] Figure 5 This is a schematic diagram of the mobile trolley waiting to lower the hook.

[0022] Figure numerals: 1. support frame; 2. mobile trolley; 3. ladle lifting cylinder; 4. gantry crane; 5. driving cylinder; 6. ladle; 7. ladle car; 8. hydraulic station. DETAILED DESCRIPTION

[0023] Example 1

[0024] like Figure 1-Figure 5 As shown, the utility model proposes a steelmaking ladle lifting device, comprising:

[0025] Support frame 1;

[0026] The mobile trolley 2 is slidingly arranged on the top of the support frame 1. The sliding direction of the mobile trolley 2 is the Y direction. The ladle lifting cylinder 3 is vertically arranged on the mobile trolley 2. Specifically, a guide rail is arranged on the top of the support frame 1, and the mobile trolley 2 slides in conjunction with the guide rail; a driving cylinder 5 is arranged on the top of the support frame 1 along the Y direction. The end of the cylinder rod of the driving cylinder 5 is connected to the mobile trolley 2. The mobile trolley 2 is driven to move in the Y direction and the -Y direction by the extension and contraction of the driving cylinder 5.

[0027] The gantry spreader 4 is arranged at the bottom of the telescopic end of the ladle lifting cylinder 3, and a hook is arranged at the bottom of the gantry spreader 4;

[0028] The ladle car 7 is set to slide along the X direction, and the ladle 6 is placed on the ladle car 7. There are two ladle cars 7, namely No. 1 ladle car and No. 2 ladle car. The No. 1 ladle car is driven along the X direction with the ladle 6 into the ladle hanging position, and then the gantry spreader 4 is lowered. Then the mobile trolley 2 moves along the Y direction to hang the hook on the ladle 6, and then the No. 1 ladle car is driven along the Y direction, and then the No. 2 ladle car is driven into the ladle hanging position, and then the gantry spreader 4 is lowered to place the empty ladle 6 on the No. 2 ladle car, and then the mobile trolley 2 is driven along the -Y direction to support the hook, and finally the gantry spreader 4 rises to the top and the No. 2 ladle car is driven along the Y direction to complete the whole process;

[0029] And the hydraulic station 8, the hydraulic station 8 is controlled and connected with the ladle lifting cylinder 3 and the driving cylinder 5, and the operation of the ladle lifting cylinder 3 and the driving cylinder 5 is controlled by the hydraulic station 8.

[0030] Example 2

[0031] like Figure 2-5 As shown, the utility model proposes a steelmaking ladle lifting device. Compared with the first embodiment, this embodiment introduces other detailed structures in detail.

[0032] The ends of the ladle lifting cylinder 3 are pivotally connected to the trolley 2 and the gantry crane 4 via pins. Considering the high temperature of the ladle 6, the gantry crane 4 is thermally insulated. The gantry crane 4 is a shoulder-pole beam structure, constructed of rectangular welded steel plates. Two plate hooks are mounted on the beam, aligned with the trunnion spacing of the ladle 6. The beam and plate hooks are connected by pins.

[0033] In summary, when the present invention is in use, the No. 1 ladle car is driven along the X direction with the ladle 6 into the ladle hanging position, and then the gantry spreader 4 is lowered, and then the mobile trolley 2 is moved along the Y direction to hang the hook on the ladle 6, and then the No. 1 ladle car is driven along the Y direction, and then the No. 2 ladle car is driven into the ladle hanging position, and then the gantry spreader 4 is lowered to place the empty ladle 6 on the No. 2 ladle car, and then the mobile trolley 2 is driven along the -Y direction to support the hook, and finally the gantry spreader 4 rises to the top and the No. 2 ladle car is driven along the Y direction to complete the whole process.

[0034] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A steelmaking ladle lifting device, characterized in that: include: Support frame (1); A movable trolley (2) is slidably arranged on the top of the support frame (1), the sliding direction of the movable trolley (2) is the Y direction, and a ladle lifting cylinder (3) is vertically arranged on the movable trolley (2); A gantry hoist (4) is arranged at the bottom of the telescopic end of the ladle lifting cylinder (3), and a hook is arranged at the bottom of the gantry hoist (4); The ladle car (7) is arranged to slide along the X direction, and the ladle (6) is placed on the ladle car (7). Two ladle cars (7) are arranged.

2. The steelmaking ladle lifting device according to claim 1, characterized in that: It also includes a driving oil cylinder (5), which is arranged on the top of the support frame (1) along the Y direction, and the end of the oil cylinder rod of the driving oil cylinder (5) is connected to the moving trolley (2).

3. The steelmaking ladle lifting device according to claim 2, characterized in that: It also includes a hydraulic station (8), which is controllably connected to the ladle lifting cylinder (3) and the driving cylinder (5).

4. The steelmaking ladle lifting device according to claim 1, characterized in that: Both ends of the ladle lifting oil cylinder (3) are rotatably connected to the moving trolley (2) and the gantry crane (4) through pin shafts.

5. The steelmaking ladle lifting device according to claim 1, characterized in that: The gantry hoist (4) is used for heat insulation protection.

6. The steelmaking ladle lifting device according to claim 1, characterized in that: The gantry hanger (4) is a shoulder pole beam structure, and the beam is a rectangular structure formed by welding steel plates.

7. The steelmaking ladle lifting device according to claim 6, characterized in that: Two plate-type hooks are arranged on the crossbeam according to the ear-axis distance of the ladle (6), and the crossbeam and the plate-type hooks are connected through a pin shaft.

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