Lifting device for refining furnace cover

Abstract

The utility model belongs to the technical field of hoisting equipment, and particularly relates to a hoisting device for a refining furnace cover, which comprises a base, a connecting assembly is arranged at the top of the base; a stand column is installed on the connecting assembly. A pair of transverse frames are symmetrically and fixedly connected to the side wall of the stand column. A winch is fixedly connected to the top of the transverse frame; the side wall of the winch is connected with a steel cable; a pair of fixing plates is symmetrically and fixedly connected to the side wall of the transverse frame. The middle part of the fixed plate is in threaded connection with a screw rod; the middle of the screw is slidably connected with a sliding plate. By means of the structure, the screw, the sliding plate and the hook are arranged, when the furnace cover body is hoisted, the sliding plate and the hook can be fixed through the screw, so that shaking generated when a steel cable is used for hoisting the furnace cover body is reduced, the stability of the furnace cover body during hoisting is improved, meanwhile, the height of the sliding plate and the hook can be adjusted through the screw, and the safety of the furnace cover body is improved. And therefore, the furnace cover hoisting device is suitable for hoisting furnace cover bodies with different heights, so that the applicability during use is improved.

Description

Technical Field

[0001] This utility model belongs to the field of hoisting equipment technology, specifically a hoisting device for refining furnace covers. Background Technology

[0002] A refining furnace is a type of smelting equipment used in the thermal processing industry. It is mainly used in ferrous metallurgy for the final deoxidation and alloying process of molten steel. The principle of a refining furnace is to melt metal at high temperatures and use chemical reactions and physical processes to remove impurities, thereby obtaining high-purity metal products.

[0003] Refining furnaces typically consist of components such as the furnace body, furnace cover, and air ducts. Under prolonged high-temperature baking, the furnace cover may deform or corrode, necessitating replacement. Due to the significant weight of the furnace cover, lifting equipment is required for the replacement. Through long-term observation, it has been found that existing furnace cover lifting devices usually use cranes or winches as power sources, employing steel cables to lift the furnace cover. However, since steel cables are made of flexible material, this can cause the furnace cover to sway and shake during lifting, posing a risk of it falling off.

[0004] Therefore, this utility model provides a hoisting device for refining furnace lids. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art and solve at least one of the problems mentioned in the background art, a hoisting device for refining furnace cover is proposed.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A hoisting device for a refining furnace cover, comprising a base; a connecting assembly is provided on the top of the base; a column is installed on the connecting assembly; a pair of crossbeams are symmetrically fixed to the side walls of the column; a winch is fixed to the top of the crossbeams; a steel cable is connected to the side wall of the winch; a pair of fixing plates are symmetrically fixed to the side walls of the crossbeams; a screw is threadedly connected to the middle of the fixing plate; a sliding plate is slidably connected to the middle of the screw; the steel cable is fixed to the top of the sliding plate; the sliding plate... The slide plate has a pair of sliding holes; the bottom of the slide plate is equipped with an adjustment component; the bottom of the adjustment component is equipped with a pair of hooks; the ends of the hooks are engaged with the furnace cover body; through the above structure, the screw, slide plate and hooks are set so that when the furnace cover body is lifted, the position of the slide plate and hooks can be fixed by the screw, thereby reducing the shaking generated when the furnace cover body is lifted by steel cable, thus improving the stability of lifting the furnace cover body. At the same time, the screw can adjust the height of the slide plate and hooks, thereby adapting to the lifting of furnace cover bodies of different heights, thus improving the applicability during use.

[0007] Preferably, the adjusting assembly includes a fixed frame; the fixed frame is fixedly connected to the bottom of the slide plate; a first motor is fixedly connected to the side wall of the fixed frame; a pair of lead screws are symmetrically rotatably connected inside the fixed frame; a slider is threadedly connected to the middle of the lead screw; the slider contacts the inner wall of the fixed frame; a hook is fixedly connected to the bottom of the slider; the lead screw and the first motor are driven by bevel gears; with the above structure, the first motor is connected to the lead screw and the slider, which can fix furnace cover bodies of different sizes, thereby improving applicability during hoisting.

[0008] Preferably, the connecting assembly includes a second motor; the second motor is fixedly connected inside the base; a first gear is fixedly connected to the output end of the second motor; a second gear is rotatably connected to the top of the base; and the column is fixedly connected to the top of the second gear. With the above structure, the second motor is connected to the first gear and the second gear, and in conjunction with a pair of crossbars and hooks, the furnace cover body can be disassembled at one end and the furnace cover body to be installed can be lifted at the other end. At this time, the installation and disassembly can be synchronized to improve the efficiency when replacing the furnace cover body.

[0009] Preferably, a plurality of rollers are fixedly connected to the sidewall of the sliding hole; the plurality of rollers are evenly distributed on the sidewall of the sliding hole; the rollers are in contact with the surface of the screw; through the above structure, the roller connecting slide plate can reduce the damage caused by friction between the slide plate and the screw, thereby improving the smoothness of the slide plate sliding in the middle of the screw.

[0010] Preferably, a fixing ring is fixedly connected to the bottom of the cross frame; multiple bristles are fixedly connected to the inner side wall of the fixing ring; through the above structure, the fixing ring and bristles can be used to clean the surface of the steel cable when the steel cable moves, so as to reduce the situation where dust and impurities adhere to the surface of the steel cable, causing dirt and corrosion, thereby improving the cleanliness of the steel cable.

[0011] Preferably, a pair of pulleys are fixed to the top of the crossbeam; the pair of pulleys are symmetrically arranged; through the above structure, the pulleys can limit the movement of the steel cable, and at the same time, the sliding friction between the steel cable and the crossbeam can be transformed into rolling friction between the steel cable and the pulleys, thereby reducing the wear of the steel cable during use and improving the service life of the steel cable.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. The refining furnace cover hoisting device of this utility model, by setting a screw, a sliding plate and a hook, can fix the position of the sliding plate and the hook by the screw when hoisting the furnace cover body, thereby reducing the shaking generated when using steel cables to hoist the furnace cover body and improving the stability of hoisting the furnace cover body. At the same time, the screw can adjust the height of the sliding plate and the hook, thereby adapting to hoisting furnace cover bodies of different heights and improving the applicability during use.

[0014] 2. The hoisting device for refining furnace covers described in this utility model can fix furnace cover bodies of different sizes by setting a first motor connecting the lead screw and the slider, thereby improving its applicability during hoisting. Attached Figure Description

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

[0016] Figure 1 This is a perspective view of the present invention;

[0017] Figure 2 This is a schematic diagram of the crossbar structure in this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the fixed frame in this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the brush bristles in this utility model.

[0020] Legend:

[0021] 1. Base; 11. Column; 12. Horizontal frame; 13. Winch; 14. Steel cable; 15. Fixing plate; 16. Screw; 17. Hook; 18. Furnace cover body; 19. Slide plate; 110. Sliding hole; 2. Fixing frame; 21. First motor; 22. Lead screw; 23. Sliding block; 3. Second motor; 31. First gear; 32. Second gear; 4. Roller; 5. Fixing ring; 51. Brush bristles; 6. Pulley; 7. Support arm. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Specific implementation examples are given below.

[0024] like Figures 1 to 2As shown in the embodiment of this utility model, a hoisting device for a refining furnace cover includes a base 1; a connecting assembly is provided on the top of the base 1; a column 11 is installed on the connecting assembly; a pair of crossbeams 12 are symmetrically fixed to the side walls of the column 11; a winch 13 is fixed to the top of the crossbeams 12; a steel cable 14 is connected to the side wall of the winch 13; a pair of fixing plates 15 are symmetrically fixed to the side walls of the crossbeams 12; a screw 16 is threadedly connected to the middle of the fixing plate 15; and a sliding joint is slidably connected to the middle of the screw 16. Plate 19; the steel cable 14 is fixed to the top of the slide plate 19; a pair of sliding holes 110 are provided in the middle of the slide plate 19; an adjustment assembly is provided at the bottom of the slide plate 19; a pair of hooks 17 are installed at the bottom of the adjustment assembly; the ends of the hooks 17 are engaged with the furnace cover body 18; during operation, when hoisting the furnace cover of the refining furnace, the height of the hooks 17 can be adjusted by rotating the screw 16. When the hooks 17 are level with the furnace cover, the hooks 17 are moved to both sides of the furnace cover by the connecting assembly, and then the hooks 17 are engaged by the adjustment assembly. On the lifting buckle of the furnace cover body 18, the winch 13 is started to wind up the steel cable 14 to pull the hook 17 and the furnace cover body 18 up. At this time, the slide plate 19 will slide in the middle of the screw 16. The screw 16 can fix the position of the slide plate 19 and the hook 17. Then, the lifted furnace cover body 18 is moved away again through the connecting assembly. Then, the furnace cover body 18 to be replaced is clamped on the slide plate 19. Then, the new furnace cover is moved to the top of the furnace opening through the connecting assembly. The winch 13 unwinds the steel cable 14 to connect the hook 17 and the furnace cover body. 18 is lowered to complete the replacement of the furnace cover. Through the above structure, the screw 16, slide plate 19, and hook 17 are set up so that when the furnace cover body 18 is lifted, the position of the slide plate 19 and hook 17 can be fixed by the screw 16, thereby reducing the shaking generated when the furnace cover body 18 is lifted by the steel cable 14, and improving the stability of the furnace cover body 18 during lifting. At the same time, the screw 16 can adjust the height of the slide plate 19 and hook 17, thereby adapting to the lifting of furnace cover bodies 18 of different heights, and improving the applicability during use.

[0025] like Figure 2 and Figure 3As shown, the adjustment assembly includes a fixed frame 2; the fixed frame 2 is fixedly connected to the bottom of the slide plate 19; a first motor 21 is fixedly connected to the side wall of the fixed frame 2; a pair of lead screws 22 are symmetrically rotatably connected inside the fixed frame 2; a slider 23 is threadedly connected to the middle of the lead screw 22; the slider 23 contacts the inner wall of the fixed frame 2; a hook 17 is fixedly connected to the bottom of the slider 23; the lead screws 22 and the first motor 21 are driven by bevel gears; during operation, starting the first motor 21 can drive the pair of lead screws 22 to rotate in opposite directions, which allows the slider 23 to slide relative to each other inside the fixed frame 2. When the first motor 21 rotates in the forward direction... When the motor moves, it will cause the sliders 23 to move closer together. At this time, the sliders 23 will cause the hooks 17 to move closer together, thus locking onto the buckles of the furnace cover body 18. When the first motor 21 rotates in the opposite direction, it will cause the sliders 23 and hooks 17 to move away from each other, thereby releasing the furnace cover body 18. When the size of the furnace cover body 18 is different, the first motor 21 can drive the sliders 23 and hooks 17 to move different distances to adapt to different sizes of furnace cover bodies 18. Through the above structure, the first motor 21 is connected to the lead screw 22 and the slider 23, which can fix furnace cover bodies 18 of different sizes to improve applicability during hoisting.

[0026] like Figure 1 As shown, the connecting assembly includes a second motor 3; the second motor 3 is fixedly connected inside the base 1; a first gear 31 is fixedly connected to the output end of the second motor 3; a second gear 32 is rotatably connected to the top of the base 1; and the column 11 is fixedly connected to the top of the second gear 32. During operation, when replacing the furnace cover body 18, the hook 17 on one side is used to lift the furnace cover body 18 located on the furnace body. Then, the furnace cover body 18 to be replaced is installed on the hook 17 on the other side. The second motor 3 is then started to drive the first gear 31 to rotate, thereby driving the second gear 32 and the column 11 to rotate. After rotating the column 11 180 degrees, the furnace cover body 18 to be replaced can be swapped with the furnace cover body 18 on the furnace body. Then, the winch 13 lowers the furnace cover body 18 to be replaced onto the furnace body, and then lowers the furnace cover body 18 that has been removed on the other side. Through the above structure, the second motor 3 is set to connect the first gear 31 and the second gear 32. With a pair of crossbeams 12 and hooks 17, the furnace cover body 18 can be removed at one end and the furnace cover body 18 to be installed can be lifted at the other end. At this time, the installation and removal can be synchronized to improve the efficiency when replacing the furnace cover body 18.

[0027] like Figure 3As shown, multiple rollers 4 are fixedly connected to the side wall of the sliding hole 110; the multiple rollers 4 are evenly distributed on the side wall of the sliding hole 110; the rollers 4 are in contact with the surface of the screw 16; during operation, when the slide plate 19 slides in the middle of the screw 16, the slide plate 19 will drive the rollers 4 in the sliding hole 110 to move. At this time, the rollers 4 will rotate on the surface of the screw 16. Through the above structure, the rollers 4 are connected to the slide plate 19, which can reduce the damage caused by friction between the slide plate 19 and the screw 16, thereby improving the smoothness of the slide plate 19 sliding in the middle of the screw 16.

[0028] like Figure 4 As shown, a fixing ring 5 is fixedly connected to the bottom of the cross frame 12; multiple bristles 51 are fixedly connected to the inner side wall of the fixing ring 5; during operation, when the winch 13 is winding and unwinding the steel cable 14, the steel cable 14 will come into contact with the bristles 51 as it moves. At this time, the bristles 51 will clean the surface of the steel cable 14. Through the above structure, the fixing ring 5 and the bristles 51 can clean the surface of the steel cable 14 as it moves, so as to reduce the situation where dust and impurities adhere to the surface of the steel cable 14, causing dirt and corrosion, thereby improving the cleanliness of the steel cable 14.

[0029] like Figure 2 As shown, a pair of pulleys 6 are fixed to the top of the crossbeam 12; the pair of pulleys 6 are symmetrically arranged; during operation, the steel cable 14 is passed through the pair of pulleys 6 during installation, at which time the pulleys 6 will limit the steel cable 14. When the steel cable 14 moves, it will drive the pulleys 6 to roll. Through the above structure, the pulleys 6 can limit the steel cable 14, and at the same time, the sliding friction between the steel cable 14 and the crossbeam 12 can be transformed into rolling friction between the steel cable 14 and the pulleys 6, thereby reducing the wear of the steel cable 14 during use and improving the service life of the steel cable 14.

[0030] like Figure 1 As shown, the support arm 7 is fixedly connected to the side wall of the column 11 and the cross frame 12; the support arm 7 is an inclined structure; through the above structure, the support arm 7 connects the column 11 and the cross frame 12, which can support the cross frame 12, reduce the stress at the connection between the cross frame 12 and the column 11, and improve the stability of the connection between the cross frame 12 and the column 11.

[0031] Working principle: When hoisting the furnace cover of the refining furnace, rotating the screw 16 adjusts the height of the hook 17. When the hook 17 is level with the furnace cover, the hook 17 is moved to both sides of the furnace cover via the connecting assembly. Then, the hook 17 is secured to the hoisting buckle of the furnace cover body 18 via the adjusting assembly. Then, the winch 13 is started to wind up the steel cable 14 to pull up the hook 17 and the furnace cover body 18. At this time, the sliding plate 19 will slide in the middle of the screw 16. The screw 16 can fix the position of the sliding plate 19 and the hook 17. Then, the hoisted furnace cover body 18 is removed again via the connecting assembly, and the furnace cover body 18 to be replaced is secured to the sliding plate. 19. The new furnace cover is then moved above the furnace opening via the connecting assembly. The winch 13 unwinds the steel cable 14, lowering the hook 17 and the furnace cover body 18, thus completing the furnace cover replacement. Starting the first motor 21 drives a pair of lead screws 22 to rotate in opposite directions, allowing the slider 23 to slide relative to each other within the fixed frame 2. When the first motor 21 rotates in the forward direction, it causes the sliders 23 to move closer together, which in turn causes the hooks 17 to move closer together, thus locking onto the latches of the furnace cover body 18. When the first motor 21 rotates in the reverse direction, it causes the sliders 23 and hooks 17 to move away from each other, thus releasing the furnace cover body 18. When the size of the furnace cover body 18 is different, the first motor 21 can drive the slider 23 and hook 17 to move different distances to adapt to different sizes of the furnace cover body 18. When replacing the furnace cover body 18, the hook 17 on one side is used to lift the furnace cover body 18 located on the furnace body, and then the furnace cover body 18 to be replaced is installed on the hook 17 on the other side. Then, the second motor 3 is started to drive the first gear 31 to rotate, thereby driving the second gear 32 and the column 11 to rotate. After the column 11 is rotated 180 degrees, the furnace cover body 18 to be replaced and the furnace cover body 18 on the furnace body can be interchanged. Then, the winch 13 lowers the furnace cover body 18 to be replaced onto the furnace body, and then lowers the furnace cover body 18 removed from the other side. When the slide plate 19 slides in the middle of the screw 16, the slide plate 19 will drive the roller 4 in the sliding hole 110 to move. At this time, the roller 4 will rotate on the surface of the screw 16. When the winch 13 is winding and unwinding the steel cable 14, the steel cable 14 will come into contact with the brush bristles 51 when it moves. At this time, the brush bristles 51 will clean the surface of the steel cable 14. During installation, the steel cable 14 is passed between a pair of pulleys 6. At this time, the pulleys 6 will limit the movement of the steel cable 14. When the steel cable 14 moves, it will drive the pulleys 6 to roll.

[0032] 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 hoisting device for a refining furnace cover, comprising a base (1); characterized in that: The base (1) is provided with a connecting assembly at the top; a column (11) is installed on the connecting assembly; a pair of crossbeams (12) are symmetrically fixed to the side wall of the column (11); a winch (13) is fixed to the top of the crossbeam (12); a steel cable (14) is connected to the side wall of the winch (13); a pair of fixing plates (15) are symmetrically fixed to the side wall of the crossbeam (12); a screw (16) is threadedly connected to the middle of the fixing plate (15); a sliding plate (19) is slidably connected to the middle of the screw (16); the steel cable (14) is fixed to the top of the sliding plate (19); a pair of sliding holes (110) are opened in the middle of the sliding plate (19); an adjusting assembly is provided at the bottom of the sliding plate (19); a pair of hooks (17) are installed at the bottom of the adjusting assembly; and a furnace cover body (18) is engaged at the end of the hook (17).

2. The hoisting device for a refining furnace cover according to claim 1, characterized in that: The adjustment assembly includes a fixed frame (2); the fixed frame (2) is fixed to the bottom of the slide plate (19); a first motor (21) is fixed to the side wall of the fixed frame (2); a pair of lead screws (22) are symmetrically rotatably connected inside the fixed frame (2); a slider (23) is threadedly connected to the middle of the lead screw (22); the slider (23) is in contact with the inner wall of the fixed frame (2); the hook (17) is fixed to the bottom of the slider (23); the lead screw (22) and the first motor (21) are driven by bevel gears.

3. The hoisting device for a refining furnace cover according to claim 1, characterized in that: The connecting assembly includes a second motor (3); the second motor (3) is fixed inside the base (1); the output end of the second motor (3) is fixedly connected to a first gear (31); the top of the base (1) is rotatably connected to a second gear (32); the column (11) is fixedly connected to the top of the second gear (32).

4. The hoisting device for a refining furnace cover according to claim 1, characterized in that: Multiple rollers (4) are fixed to the side wall of the sliding hole (110); the multiple rollers (4) are evenly distributed on the side wall of the sliding hole (110); the rollers (4) are in contact with the surface of the screw (16).

5. The hoisting device for a refining furnace cover according to claim 1, characterized in that: A fixing ring (5) is fixedly connected to the bottom of the cross frame (12); a plurality of bristles (51) are fixedly connected to the inner side wall of the fixing ring (5).

6. The hoisting device for a refining furnace cover according to claim 1, characterized in that: A pair of pulleys (6) are fixed to the top of the cross frame (12); the pair of pulleys (6) are arranged symmetrically.

7. The hoisting device for a refining furnace cover according to claim 1, characterized in that: The support arm (7) is fixedly connected to the side wall of the column (11) and the cross frame (12); the support arm (7) is an inclined structure.

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