A device for lifting the shell of a Kaldo furnace as a whole

Abstract

The utility model belongs to the field of mechanical equipment, and particularly relates to a device for hoisting the furnace shell of a Kaldo furnace as a whole, comprising a bracket, a sliding assembly, and a sling assembly; the distance between two slings is controlled by the sliding assembly so that it can adapt to the lifting requirements of furnace shells of different sizes, and at the same time, a guide tube is provided to reduce the free section of the sling, so that the device has less shaking and is more stable when hoisting the furnace shell, thereby making the disassembly and installation of the furnace shell more convenient and safer.

Description

Technical Field

[0001] The utility model belongs to the field of mechanical equipment, and in particular relates to a device used for integrally lifting a shell of a Kaldo furnace. Background Art

[0002] The Kaldo furnace consists of several major parts, including a furnace body, a clamping mechanism consisting of two tilting wheels, and a base equipped with four supporting wheels. The clamping mechanism can clamp the furnace body on the base equipped with supporting wheels and tilt it 360° at a certain speed; when the furnace body is tilted to a working angle of 28° with the horizontal, it rotates around the longitudinal axis at a certain speed in the clamping mechanism according to the requirements of the smelting process to complete the smelting process of the material, with high smelting efficiency.

[0003] Because the Kaldo furnace can be tilted 360º and rotate around the longitudinal axis at a certain speed when tilted to a certain angle, the high-temperature erosion rate of the furnace lining bricks is fast during the metal smelting process, the service life of the lining is short, and the replacement time is long, which brings many inconveniences to the production and operation. We have specially developed and innovated a new practical device that uses two bridge cranes to hoist the Kaldo furnace shell as a whole. The old furnace shell (including the lining) is directly dismantled as a whole, and the new furnace shell (including the lining) is hoisted and installed, which solves the problem of long maintenance time and low operating rate caused by the cooling of the Kaldo furnace, cleaning of the old lining, masonry of the new lining, and heating processes.

[0004] To this end, the utility model designs a device which can freely expand and contract the distance between the slings to adapt to different sizes of furnace shells and is convenient for loading and unloading, so as to facilitate the disassembly of the furnace shell. Utility Model Content

[0005] The purpose of the utility model is to provide a device for lifting the shell of a Kaldo furnace as a whole, so as to solve the problems existing in the prior art. To achieve the above-mentioned purpose of the invention, the technical solution adopted by the utility model is:

[0006] A device for lifting the entire shell of a Kaldo furnace comprises a bracket, a sliding assembly and a sling assembly; the bracket is slidably connected to the sliding assembly, one end of the sling assembly is fixedly arranged on the bracket, the sling assembly is slidably connected to the sliding assembly, and the other end of the sling assembly is connected to a furnace ear, and a hook drives the bracket to move so that the furnace shell is separated from the furnace body.

[0007] Furthermore, the bracket includes a lifting ear, a frame body, a slide groove, a tooth portion, a groove and a groove; two pairs of the lifting ears are symmetrically arranged at both ends of the frame body for connecting the hook one, the two slide grooves and the grooves are symmetrically arranged on both sides of the frame body, each slide groove is provided with a tooth portion, and the two grooves are symmetrically arranged on the other two sides of the frame body and are connected to each other.

[0008] Furthermore, the sliding assembly includes a motor 1, a square plate, a guide tube, a gear, a protrusion and a base plate; a through hole connected to the guide tube is provided in the center of the base plate and is fixedly connected to the guide tube, square plates are symmetrically fixed at both ends of the base plate, each of the square plates is fixedly provided with a protrusion that can slidably cooperate with the groove, each of the square plates is provided with a through hole that is slidably connected to the output end of the motor 1, and the gear that meshes with the tooth portion is fixedly provided at the output end of the motor 1.

[0009] Furthermore, a group of guide rollers are fixedly provided at both ends of the guide tube, and the guide rollers are rotatably connected to the sling assembly.

[0010] Furthermore, the sling assembly includes a turntable bracket, a second motor, a turntable, and a sling; the turntable bracket is provided with a U-shaped groove cooperating with the turntable, and the two turntable brackets are fixedly arranged on one side of the bracket provided with a groove, and each of the turntable bracket U-shaped grooves is provided with through holes on both sides for rotationally cooperating with the output end of the second motor, and the turntable is fixedly arranged on the output end of the second motor, and the turntable is fixedly connected to one end of the sling, and the other end of the sling passes through the groove and is slidably connected to each group of the guide rollers and then fixedly connected to the second hook.

[0011] The utility model has the following beneficial effects: the distance between the two slings is controlled by a sliding component, so that it can adapt to the requirements of lifting furnace shells of different sizes; at the same time, a guide tube is provided to reduce the free section of the sling, so that the device shakes less and is more stable when lifting the furnace shell, thereby making the disassembly and installation of the furnace shell more convenient and safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is the front view of the whole device;

[0013] Figure 2 is a front cross-sectional view of the sliding assembly;

[0014] Figure 3 is a side view of the sliding assembly;

[0015] Figure 4 is a side view of the bracket;

[0016] Figure 5 Top view of the sliding assembly;

[0017] Figure 6 is a top view of the bracket;

[0018] Figure 7 yes Figure 1 Enlarged view of point A in the middle. DETAILED DESCRIPTION

[0019] The following will be combined with the attached embodiment of the present utility model Figure 1-Figure 7 , the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Unless otherwise specified, the technical means used in the embodiments are conventional means well known to those skilled in the art.

[0020] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0021] A device for lifting the entire shell of a Kaldo furnace comprises a bracket, a sliding assembly and a sling assembly; the bracket is slidably connected to the sliding assembly, one end of the sling assembly is fixedly arranged on the bracket, the sling assembly is slidably connected to the sliding assembly, the other end of the sling assembly is connected to a furnace ear 6, and a hook 1 drives the bracket to move so that the furnace shell is separated from the furnace body.

[0022] like Figure 1 As shown, two bridge cranes are respectively provided at both ends of the bracket, and two hooks 1 of the two bridge cranes are respectively connected to the two lifting ears 201, and the bridge cranes can move in the direction perpendicular to the plane shown by the reader, thereby driving the connected bracket to move in the vertical direction. The bracket is provided with a sliding component and a sling component, and the sliding component can move on the bracket through the drive of the motor 401. According to the size of the furnace shell, the position of the sliding component is adjusted. When reaching the appropriate position, the motor 401 takes braking, and the braking method can be the self-braking of the motor 401. The braking device can be controlled by an electromagnetic switch or manually, and the braking of the motor 2 303 described below can also be carried out in a similar manner. The connecting end of the sling 304 and the hook 2 5 hangs down through the guide tube 403, so the spacing between the slings 304 can be adapted to the size of the furnace shell by adjusting the two guide tubes 403 (i.e., the position of the sliding assembly) to avoid the spacing between the slings 304 being too large or too small to exert lateral pulling force on the furnace shell and cause shaking.

[0023] Furthermore, the bracket includes a lifting ear 201, a frame 202, a slide groove 203, a tooth portion 204, a groove 205 and a groove 206; two pairs of the lifting ears 201 are symmetrically arranged at both ends of the frame 202 for connecting the hook 1, the two slide grooves 203 and the groove 205 are symmetrically arranged on both sides of the frame, each slide groove 203 is provided with a tooth portion 204, and the two grooves 206 are symmetrically arranged on the other two sides of the frame 202 and are connected to each other.

[0024] The lifting ears 201 should be arranged as symmetrically as possible, and two lifting ears 201 are preferably arranged at each end of the bracket (such as Figure 4 As shown), similarly, there are preferably two hooks 1 at each end (the two lifting ears 201 can also be connected to one hook 1 by a sling or the like) to ensure the balance of the bracket, and the two lifting ears 201 at each end should also be symmetrically arranged so that the force center of the bracket is located on the central axis to facilitate balance. At the same time, the position of the lifting ears 201 can be as follows Figure 1 The top or both ends shown in the figure can be specifically set according to the needs. The slide groove 203 and the groove 205 are set on the same side to facilitate the cooperation of the sliding assembly, and the groove 206 is set on the side of the frame 202 where the slide groove 203 is not set. The groove 206 runs through the frame 202, and its size is adapted to the sling 304 to ensure that the sling 304 can pass through the groove 203 and enter the guide tube 403.

[0025] In addition, the sliding assembly includes a motor 401, a square plate 402, a guide tube 403, a gear 405, a protrusion 406 and a base plate 407; a through hole connected to the guide tube 403 is provided in the center of the base plate 407 and fixedly connected to the guide tube 403, square plates 402 are symmetrically fixed at both ends of the base plate 407, each of the square plates 402 is fixedly provided with a protrusion 406 that can slidably cooperate with the groove 205, each of the square plates 402 is provided with a through hole that is slidably connected to the output end of the motor 401, and the gear 405 meshing with the tooth portion 204 is fixedly provided at the output end of the motor 401.

[0026] The perforations on the bottom plate 402 are adapted to the slings 304. When the output end of the motor 401 is working, it drives the gear 405 to rotate, and the gear 405 is engaged with the tooth portion 204, so when the gear 405 rotates, it drives the sliding component to slide on the bracket. When the distance between the two sliding components reaches the distance adapted to the furnace shell, the motor 401 brakes to keep the gear 405 stationary at the current position, thereby keeping the sliding component fixed at the current position.

[0027] In addition, a set of guide rollers 404 are fixedly provided at both ends of the guide tube 403, and the guide rollers 404 are rotatably connected to the sling assembly. The guide rollers 404 can be provided in multiple sets in the guide tube 403 according to the requirements, but it is only necessary to ensure that a set of guide rollers 404 is provided at each end. The guide rollers 404 are provided to reduce the friction between the sling 304 and various components and to guide the direction of the sling 304, and the guide tube 403 is provided to reduce the length of the free section of the sling 304, thereby reducing the swing amplitude of the sling 304 in the air, thereby enhancing safety and facilitating construction operations.

[0028] Furthermore, the sling assembly includes a turntable bracket 301, a second motor 302, a turntable 303, and a sling 304; the turntable bracket 301 is provided with a U-shaped groove cooperating with the turntable 303, and the two turntable brackets 301 are fixedly arranged on one side of the bracket 301 where a groove 206 is provided, and both sides of the U-shaped groove of each turntable bracket 301 are provided with through holes rotatably cooperating with the output end of the second motor 302, and the turntable 303 is fixedly arranged on the output end of the second motor 302, and the turntable 303 is fixedly connected to one end of the sling 304, and the other end of the sling 304 passes through the groove 206 and is slidably connected to each group of the guide rollers 404, and then fixedly connected to the hook 2 5.

[0029] One end of the sling 304 is fixed on the turntable 303. When the motor 302 rotates, the turntable 303 is driven to rotate so that the free section of the sling 304 contracts or stretches, so that Figure 1 The sling 304 at the lower end of the guide tube 403 shown is extended or shortened, and during operation, the motor 2 302 is operated or braked according to the length requirement of the sling 304 .

[0030] Working process: connect the lifting ear 201 and the hook 1 together, and let the motor 1 401 work and rotate so that the sliding assembly slides to the appropriate position, that is, the spacing between the slings 304 hanging from the two guide tubes 403 is consistent with the diameter of the furnace shell. At this time, brake the motor 1 401 to keep the distance between the two sliding assemblies fixed, and then rotate the motor 2 302 to make the free section length of the sling 304 meet the requirements, so that the hook 5 can hook the furnace ear 6, and then rotate the motor 2 302 appropriately to reduce the free section of the sling 304, so that the furnace shell rises upward, and then let the bridge crane work to drive the overall device to move on the vertical paper surface to achieve the separation of the furnace shell and furnace body.

[0031] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations, modifications, and substitutions made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A device for hoisting the shell of a Kaldo furnace as a whole, characterized by: Including bracket, sliding assembly, sling assembly; The bracket is slidably connected to the sliding assembly, one end of the sling assembly is fixedly arranged on the bracket, the sling assembly is slidably connected to the sliding assembly, the other end of the sling assembly is connected to the furnace ear (6), and the hook 1 (1) drives the bracket to move so that the furnace shell and the furnace body are separated; The bracket comprises a lifting ear (201), a bracket body (202), a sliding groove (203), a tooth portion (204), a groove (205) and a groove (206); Two pairs of the lifting ears (201) are symmetrically arranged at both ends of the frame (202) for connecting the lifting hook 1 (1); the two sliding grooves (203) and the grooves (205) are symmetrically arranged on both sides of the frame, each of the sliding grooves (203) is provided with a tooth portion (204); and the two grooves (206) are symmetrically arranged on the other two sides of the frame (202) and are connected to each other.

2. The device for integrally lifting the shell of a Kaldo furnace according to claim 1, characterized in that: The sliding assembly comprises a motor 1 (401), a square plate (402), a guide tube (403), a gear (405), a protrusion (406) and a bottom plate (407); The center of the bottom plate (407) is provided with a through hole connected to the guide tube (403) and fixedly connected to the guide tube (403); square plates (402) are symmetrically fixedly arranged at both ends of the bottom plate (407); each of the square plates (402) is fixedly provided with a protrusion (406) that can slidably cooperate with the groove (205); each of the square plates (402) is provided with a through hole that is slidably connected to the output end of the motor 1 (401); and the gear (405) that meshes with the toothed portion (204) is fixedly arranged at the output end of the motor 1 (401).

3. The device for integrally lifting the shell of a Kaldo furnace according to claim 2, characterized in that: A group of guide rollers (404) are fixedly disposed at both ends of the guide tube (403), and the guide rollers (404) are rotatably connected to the sling assembly.

4. The device for integrally lifting the shell of a Kaldo furnace according to claim 3, characterized in that: The sling assembly comprises a turntable bracket (301), a second motor (302), a turntable (303), and a sling (304); The turntable bracket (301) is provided with a U-shaped groove that matches the turntable (303), and the two turntable brackets (301) are fixedly arranged on one side of the bracket (301) where the groove (206) is provided. Both sides of the U-shaped groove of each turntable bracket (301) are provided with through holes that are rotatably matched with the output end of the second motor (302). The turntable (303) is fixedly arranged on the output end of the second motor (302), and the turntable (303) is fixedly connected to one end of the sling (304). The other end of the sling (304) passes through the groove (206) and is slidably connected to each group of the guide rollers (404) and then fixedly connected to the second hook (5).

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