Furnace cover hoisting mechanism of refining furnace for steelmaking

Abstract

The utility model relates to the technical field of furnace cover disassembly of refining furnaces, in particular to a furnace cover hoisting mechanism of a refining furnace for steelmaking, which comprises a transverse plate, the outer wall of the transverse plate is fixedly connected with a first shell, and a hook lifting device is arranged in the first shell. Through cooperation of the first shell and the hook lifting device, the worm drives the worm wheel to rotate, the worm wheel drives the first gear to rotate, the first gear drives the rack to move, the second shell drives the furnace cover to ascend in the mode, and the situation that the furnace cover shakes and falls off during ascending and descending can be avoided in the mode; through cooperation of a stand column and a furnace cover bottom supporting device, a third motor drives a second gear to rotate, the second gear drives a third gear to rotate, and a baffle moves to the lower end of the furnace cover, the lower end of the furnace cover can be supported in the mode, and the situation that the furnace cover slides off is avoided; therefore, the working risk of the furnace cover hoisting mechanism is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of refining furnace cover disassembly, in particular to a refining furnace cover hoisting mechanism for steelmaking. Background Art

[0002] Refining furnace is a kind of smelting equipment in the hot processing industry, which is mostly used for final deoxidation and alloying of molten steel in ferrous metallurgy. It has different classifications according to different smelting purposes, and the common ones are argon blowing refining furnace, LF refining furnace, etc.

[0003] For example, the furnace cover hoisting mechanism of a vacuum degassing furnace for steelmaking with the authorization announcement number "CN220246183U" controls the sliding of four limit columns on the X-shaped opening respectively through the movement of two threaded sleeves toward or away from each other, so that the furnace cover lifted by the winding mechanism is clamped by four limit columns, and the furnace cover is sufficiently stable when lifted and lowered, which is convenient for installation. However, the furnace cover hoisting mechanism of the vacuum degassing furnace for steelmaking drives the hook to lift the furnace cover by winding ropes, but the winding ropes will shake during lifting and lowering, which causes the furnace cover to shake during lifting and lowering, which causes the furnace cover to fall off, thus reducing the working quality of the furnace cover hoisting mechanism. At the same time, the furnace cover hoisting mechanism of the vacuum degassing furnace for steelmaking fixes the furnace cover by a limit rod after the furnace cover is lifted, but the limit rod only presses against the side of the furnace cover. When the weight of the furnace cover is large, the furnace cover will still fall off, which increases the working danger of the furnace cover hoisting mechanism. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that the rope will shake when it is lifted or lowered, which causes the furnace cover to shake when it is lifted or lowered, which causes the furnace cover to fall off, thereby reducing the working quality of the furnace cover lifting mechanism and fixing the furnace cover by a limit rod after the furnace cover is lifted. However, the limit rod only presses against the side of the furnace cover. When the weight of the furnace cover is large, the furnace cover will still fall off, which increases the working danger of the furnace cover lifting mechanism. A furnace cover lifting mechanism for a refining furnace for steelmaking is proposed.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A furnace cover lifting mechanism for a steelmaking refining furnace is designed, comprising a horizontal plate, an outer wall of the horizontal plate is fixedly connected to a first shell, a hook lifting device is provided inside the first shell, an outer wall of the first shell is fixedly connected to two columns, a furnace cover bottom supporting device is provided inside the two columns, a plurality of lifting rings are installed on the surface of the horizontal plate, the plurality of lifting rings are distributed in a rectangular shape on the surface of the horizontal plate, and the two columns are symmetrically distributed on the lower surface of the horizontal plate.

[0007] Preferably, the hook lifting device includes a first motor, the outer walls of the two first motors are fixedly connected to the first shell through a bracket, the output shaft of the first motor is fixedly connected to the worm, the outer wall of the worm is fixedly connected to the first shell through a bearing and a bracket, the worm is meshingly connected to the worm wheel, the outer wall of the worm wheel is rotatably connected to the first shell through a pin shaft, the outer wall of the worm wheel is fixedly connected to the first gear through the bracket, the first gear is meshingly connected to the rack, the outer wall of the rack is slidably connected to the limit rod, the outer walls of the two limit rods are fixedly connected to the first shell, the outer walls of the two racks are fixedly connected to the second shell, the outer wall of the second shell is fixedly connected to the motor box, the inner wall of the motor box is fixedly connected to the second motor through a bracket, the output shaft of the second motor is fixedly connected to the stud, and the outer wall of the stud is rotatably connected to the second shell through a bearing.

[0008] Preferably, the outer wall of the stud is threadedly connected to the two connecting rods, and the outer parts of the two connecting rods are slidably connected to the second shell body through a sliding groove.

[0009] Preferably, the furnace cover supporting device includes a third motor, the output shaft of the third motor is fixedly connected to the second gear, the second gear is meshingly connected to the third gear, the outer wall of the third gear is fixedly connected to two rotating wheels, and the outer walls of the two rotating wheels are in contact with the baffle.

[0010] Preferably, the outer walls of the two baffles are slidably connected to the column via a sliding groove, and the outer walls of the two rotating wheels are rotationally connected to the column via a pin shaft.

[0011] Preferably, the outer walls of the two connecting rods are fixedly connected to the two hooks respectively, and the outer walls of the two hooks are in contact with each other.

[0012] The utility model proposes a furnace cover lifting mechanism for a steelmaking refining furnace, which has the beneficial effects of: through the cooperation of the first shell and the hook lifting device, the worm drives the worm wheel to rotate, the worm wheel drives the first gear to rotate, the first gear drives the rack to move, the rack drives the second shell to move, and the second shell drives the furnace cover to rise in the above manner. The above manner can avoid the furnace cover from shaking and falling when it is lifted or lowered, thereby improving the working quality of the furnace cover lifting mechanism.

[0013] Through the cooperation of the column and the furnace cover supporting device, the third motor drives the second gear to rotate, the second gear drives the third gear to rotate, the third gear drives the rotating wheel to rotate, the rotating wheel drives the baffle to move, and the baffle moves to the lower end of the furnace cover. The above method can support the lower end of the furnace cover to avoid slipping, which reduces the working danger of the furnace cover lifting mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 for Figure 1 A schematic front cross-sectional view of

[0016] Figure 3 for Figure 2 A partial side cross-sectional schematic diagram of ;

[0017] Figure 4 for Figure 2 A partial front view cross-sectional diagram of the center column;

[0018] Figure 5 for Figure 4 A side cross-sectional schematic diagram of

[0019] Figure 6 for Figure 4 A partial three-dimensional schematic diagram of the third motor, the second gear and the rotating wheel.

[0020] In the figure: 1, horizontal plate, 2, first shell, 3, hook lifting device, 301, first motor, 302, worm, 303, worm wheel, 304, first gear, 305, rack, 306, second shell, 307, motor box, 308, second motor, 309, stud, 310, limit rod, 4, connecting rod, 5, hook, 6, column, 7, furnace cover bottom supporting device, 701, third motor, 702, second gear, 703, third gear, 704, rotating wheel, 705, baffle, 8, lifting ring. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings:

[0022] See attached Figure 1-6 : In this embodiment, a furnace cover hoisting mechanism for a steelmaking refining furnace includes a horizontal plate 1, the outer wall of the horizontal plate 1 is fixedly connected to a first shell 2, a hook lifting device 3 is provided inside the first shell 2, the outer wall of the first shell 2 is fixedly connected to two columns 6, a furnace cover bottom supporting device 7 is provided inside the two columns 6, a plurality of lifting rings 8 are installed on the surface of the horizontal plate 1, and the plurality of lifting rings 8 are distributed in a rectangular shape on the surface of the horizontal plate 1, and the two columns 6 are symmetrically distributed on the lower surface of the horizontal plate 1;

[0023] The outer wall of the stud 309 is threadedly connected to the two connecting rods 4, and the stud 309 drives the connecting rod 4 to move. The outside of the two connecting rods 4 is slidingly connected to the second shell 306 through a slide groove, and the connecting rod 4 slides on the second shell 306. The outer walls of the two baffles 705 are slidingly connected to the column 6 through the slide groove, and the baffle 705 slides on the column 6. The outer walls of the two rotating wheels 704 are rotationally connected to the column 6 through the pin shaft, and the rotating wheel 704 rotates on the column 6. The outer walls of the two connecting rods 4 are respectively fixedly connected to the two hooks 5, and the connecting rod 4 drives the hooks 5 to move, and the outer walls of the two hooks 5 fit together.

[0024] See attached Figure 2 and Figure 3 : In the present embodiment, a furnace cover lifting mechanism for a refining furnace for steelmaking, the hook lifting device 3 includes a first motor 301, the outer walls of the two first motors 301 are fixedly connected to the first shell 2 through a bracket, the model of the first motor 301 is selected according to actual needs, and the model that meets the work needs can be selected, the output shaft of the first motor 301 is fixedly connected to the worm 302, the first motor 301 drives the worm 302 to rotate, the outer wall of the worm 302 is fixedly connected to the first shell 2 through a bearing and a bracket, the worm 302 rotates on the first shell 2, the worm 302 is meshed and connected with the worm wheel 303, the worm 302 drives the worm wheel 303 to rotate, and the outer wall of the worm wheel 303 is rotatably connected to the first shell 2 through a pin shaft.

[0025] The worm wheel 303 rotates on the first housing 2, and the outer wall of the worm wheel 303 is fixedly connected to the first gear 304 through the bracket. The worm wheel 303 drives the first gear 304 to rotate, and the first gear 304 is meshed and connected with the rack 305. The first gear 304 drives the rack 305 to rotate, and the outer wall of the rack 305 is slidably connected to the limit rod 310. The rack 305 moves on the limit rod 310. The outer walls of the two limit rods 310 are fixedly connected to the first housing 2, and the outer walls of the two racks 305 are fixedly connected to the second housing 306. The rack 305 drives the second housing 30 6 movement, the outer wall of the second shell 306 is fixedly connected to the motor box 307, the second shell 306 drives the motor box 307 to move, the inner wall of the motor box 307 is fixedly connected to the second motor 308 through a bracket, the model of the second motor 308 is selected according to actual needs, and the model that meets the work needs can be selected, the output shaft of the second motor 308 is fixedly connected to the stud 309, the second motor 308 drives the stud 309 to rotate, the outer wall of the stud 309 is rotatably connected to the second shell 306 through a bearing, and the stud 309 rotates on the second shell 306.

[0026] See attached Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6In the present embodiment, a furnace cover lifting mechanism for a refining furnace for steelmaking is provided, wherein the furnace cover supporting device 7 comprises a third motor 701, wherein the output shaft of the third motor 701 is fixedly connected to the second gear 702, the third motor 701 drives the second gear 702 to rotate, the second gear 702 is meshedly connected to the third gear 703, the second gear 702 drives the third gear 703 to rotate, the outer wall of the third gear 703 is fixedly connected to two rotating wheels 704, the third gear 703 drives the rotating wheels 704 to rotate, the outer walls of the two rotating wheels 704 are in contact with the baffle 705, and the rotating wheel 704 drives the baffle 705 to move.

[0027] Working principle:

[0028] When the furnace cover needs to be hoisted:

[0029] Furnace cover hoisting stage:

[0030] First, the operator places the lifting ring on the furnace cover between the two hooks 5, and then connects the external power supply of the second motor 308, starts the second motor 308, the second motor 308 drives the stud 309 to rotate, the stud 309 drives the two connecting rods 4 to move, the connecting rod 4 drives the hook 5 to move, after the two hooks 5 are tightly pressed, the second motor 308 stops working, and then connects the external power supply of the first motor 301, starts the first motor 301 to drive the worm 302 to rotate, the worm 302 drives the worm wheel 303 to rotate, the worm wheel 303 drives the first gear 304 to rotate, the first gear 304 drives the rack 305 to move, the rack 305 drives the second shell 306 to move, and the second shell 306 drives the furnace cover to rise in the above manner.

[0031] Furnace cover supporting stage:

[0032] After the furnace cover rises, the external power supply of the third motor 701 is connected to start the third motor 701, the third motor 701 drives the second gear 702 to rotate, the second gear 702 drives the third gear 703 to rotate, the third gear 703 drives the rotating wheel 704 to rotate, the rotating wheel 704 drives the baffle 705 to move, and after the baffle 705 moves to the lower end of the furnace cover, the third motor 701 stops working.

[0033] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A furnace cover hoisting mechanism for a steelmaking refining furnace, comprising a horizontal plate (1), characterized in that: The outer wall of the transverse plate (1) is fixedly connected to the first shell (2), a hook lifting device (3) is provided inside the first shell (2), the outer wall of the first shell (2) is fixedly connected to two upright posts (6), a furnace cover supporting device (7) is provided inside the two upright posts (6), a plurality of lifting rings (8) are installed on the surface of the transverse plate (1), the plurality of lifting rings (8) are distributed in a rectangular shape on the surface of the transverse plate (1), and the two upright posts (6) are symmetrically distributed on the lower surface of the transverse plate (1).

2. The furnace cover hoisting mechanism for a steelmaking refining furnace according to claim 1, characterized in that: The hook lifting device (3) comprises a first motor (301), the outer walls of the two first motors (301) are fixedly connected to the first housing (2) via a bracket, the output shaft of the first motor (301) is fixedly connected to the worm (302), the outer wall of the worm (302) is fixedly connected to the first housing (2) via a bearing and a bracket, the worm (302) is meshedly connected to a worm wheel (303), the outer wall of the worm wheel (303) is rotationally connected to the first housing (2) via a pin shaft, the outer wall of the worm wheel (303) is fixedly connected to a first gear (304) via a bracket, the first gear (304) is connected to a rack (30 5) are meshed and connected, the outer wall of the rack (305) is slidably connected to the limit rod (310), the outer walls of the two limit rods (310) are fixedly connected to the first shell (2), the outer walls of the two racks (305) are fixedly connected to the second shell (306), the outer wall of the second shell (306) is fixedly connected to the motor box (307), the inner wall of the motor box (307) is fixedly connected to the second motor (308) through a bracket, the output shaft of the second motor (308) is fixedly connected to the stud (309), and the outer wall of the stud (309) is rotatably connected to the second shell (306) through a bearing.

3. The furnace cover hoisting mechanism for a steelmaking refining furnace according to claim 2, characterized in that: The outer wall of the stud bolt (309) is threadedly connected to the two connecting rods (4), and the exterior of the two connecting rods (4) is slidably connected to the second housing (306) via a sliding groove.

4. The furnace cover hoisting mechanism for a steelmaking refining furnace according to claim 1, characterized in that: The furnace cover supporting device (7) comprises a third motor (701), the output shaft of the third motor (701) is fixedly connected to the second gear (702), the second gear (702) is meshedly connected to the third gear (703), the outer wall of the third gear (703) is fixedly connected to two rotating wheels (704), and the outer walls of the two rotating wheels (704) are in contact with the baffle (705).

5. The furnace cover hoisting mechanism for a steelmaking refining furnace according to claim 4, characterized in that: The outer walls of the two baffles (705) are slidably connected to the pillar (6) via a sliding groove, and the outer walls of the two rotating wheels (704) are rotationally connected to the pillar (6) via a pin shaft.

6. The furnace cover hoisting mechanism for a steelmaking refining furnace according to claim 3, characterized in that: The outer walls of the two connecting rods (4) are respectively fixedly connected to the two hooks (5), and the outer walls of the two hooks (5) are in close contact with each other.

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