Movable lifting device for air brick installation

Abstract

The utility model discloses a movable lifting device for air brick installation, which is characterized in that a horizontal push rod mechanism and an air brick conveying mechanism are arranged on a lifting platform, a base of the horizontal push rod mechanism and a sliding mechanism are arranged on the lifting platform, an air brick support is arranged on the sliding mechanism of the air brick conveying mechanism, and a push plate and an air brick fixing block are arranged on the air brick support. A hanging plate is arranged on one side of the push plate, clamping plates are arranged at the ends of the hydraulic push rods and clamped on the two sides of the hanging plate, pin shafts penetrate through the clamping plates and the hanging plate, and the walking frame and the lifting platform are communicated with an electric control mechanism. The device is simple in structure, convenient to use, easy to maintain and safe to use; the function of moving in any direction can be achieved, and safety and stability during parking can be guaranteed; the lifting platform is adopted, the air bricks and personnel complete installation operation on the lifting platform, and the personnel safety is high; due to the adoption of the electric hydraulic push rod device, more time and labor are saved, and the time cost and the labor cost are reduced when the air brick is mounted by using the electric hydraulic push rod device.

Description

Technical Field

[0001] The utility model belongs to the technical field of steelmaking auxiliary in the metallurgical industry, and specifically relates to a mobile lifting device for installing air-permeable bricks. Background Art

[0002] In recent years, the competition in the steel industry has become increasingly fierce, and low-cost manufacturing has room for profitability. At present, the steel industry can only reduce costs by optimizing processes and improving the metallurgical functions of ladles, which has become a means for enterprises to achieve profitability. Jiugang Carbon Steel Thin Plate Plant originally used single-permeable bricks, and the one-time service life of single-permeable bricks averaged 17.5 furnaces. Each ladle generally needs to be replaced 8-9 times from the time it is put into use to the time it is taken offline for overhaul. The entire process of replacing the permeable bricks takes two days. Each time the ladle is taken offline, the lining is severely eroded and powdered, and the service life of the ladle is relatively low. By adopting the technology of double-permeable bricks to extend the online service life of the permeable bricks, the thermal turnover efficiency of the ladle can be improved, the temperature drop of molten steel can be reduced, the number of times the ladle is repaired offline, the amount of materials used for repairs can be reduced, the consumption of baking gas can be reduced, the erosion and powdering of the ladle lining can be reduced, and the life of the ladle can be increased. Therefore, the single-permeable brick model can no longer meet the safe production needs of high-quality, high-efficiency clean steel. Therefore, it is imperative to transform the existing 120-ton ladle into a double-permeable brick model. It will effectively solve the bottleneck problem of the refining ladle and provide strong technical support for high-quality development.

[0003] The original way to replace the air bricks when the ladle is single air brick is to place it horizontally on the ground, and bring the air brick hole side close to the ground. The original air brick hole is 835mm from the ground. The entire process of replacing the air bricks is done manually standing on the ground. Because the weight of each air brick core is 60KG, installation is difficult and requires the cooperation of multiple people. Since there is no fixing device, it is difficult for the air brick core to be tightly combined with the air seat brick, and the entire operation time is long, time-consuming and laborious, and the installation quality is unstable and unsafe. After the double air bricks of the ladle were transformed, another air brick was added at a height of 1800mm from the original air brick. Since the new air brick is too high from the ground, it is more difficult to install the air brick. Without auxiliary devices, the replacement and installation of the air brick cannot be completed. For example, building a platform ladder takes up a large area and is inconvenient to move. It is unsafe for workers to work on the platform. Utility Model Content

[0004] The utility model aims to provide a mobile lifting device for installing air-permeable bricks to solve the above problems.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A mobile lifting device for installing air bricks comprises a running frame and a lifting platform arranged in the running frame, a horizontal push rod mechanism and an air brick conveying mechanism are arranged on the lifting platform, the horizontal push rod mechanism comprises a base and a hydraulic push rod arranged on the base, the air brick conveying mechanism comprises a sliding mechanism, an air brick support and an air brick fixing block, the base and the sliding mechanism are respectively arranged on the lifting platform, an air brick support is arranged on the sliding mechanism, a push plate and an air brick fixing block are arranged on the air brick support, the top surface of the air brick fixing block is an arc shape matched with the air brick, a hanging plate is arranged on the side of the push plate close to the hydraulic push rod, a card plate is arranged parallel to the end of the hydraulic push rod, the card plate is clamped on both sides of the hanging plate, a pin shaft is inserted between the card plate and the hanging plate for connection, the axes of the hydraulic push rod, the sliding mechanism, the air brick support, the push plate and the air brick fixing block are in the same plane, and the running frame and the lifting platform are respectively connected with the electrical control mechanism.

[0007] In order to further realize the utility model, a semicircular arc-shaped support block is provided on the base for mounting a hydraulic push rod, and supports are symmetrically provided on both sides of the hydraulic push rod and fixedly connected with the base, and long holes that match each other are symmetrically provided on the base and the supports, and adjustment bolts are provided in the long holes. The support and the base are fixed with adjustment bolts, and the base is welded on the lifting platform, and the engagement hole thereon is a long hole, which is convenient for adjusting the position of the hydraulic push rod.

[0008] In order to further realize the utility model, the air-permeable brick support includes an upper seat and a lower seat, a plurality of oblong holes are arranged on the side wall of the upper seat, the outer ends of the oblong holes penetrate the side wall of the upper seat, and the inner ends of the oblong holes extend toward the central axis of the upper seat, a plurality of screw holes corresponding to the oblong holes are arranged on the lower seat, and bolts are arranged between the screw holes and the oblong holes. The bolt holes on the upper seat are designed to be oblong holes perpendicular to the air-permeable bricks, so that when the air-permeable bricks are not in the right position on the left and right during the installation of the air-permeable bricks, the left and right positions can be adjusted by bolts.

[0009] In order to further realize the utility model, the running frame is a rectangular structure, including 4 columns and a number of beams arranged between the columns. The columns are made of H-shaped steel, and the beams are made of channel steel or I-shaped steel. Connecting plates are symmetrically arranged on the top beams, and a chain electric hoist is arranged on the connecting plate. The bottom end of the chain of the chain electric hoist is fixedly connected to the lifting platform. One end of the chain electric hoist is hung on the beam of the running frame through the connecting plate, and the other end is connected to the lifting platform to realize the lifting function of the platform. The chain electric hoist has a simple structure, small size, stable operation, easy installation, disassembly, and maintenance, and has good maintainability. In order to ensure the smooth lifting of the platform, two 1t chain electric hoists are selected to synchronously lift the lifting platform. Due to the good comprehensive performance of the chain electric hoist, the safety and reliability of use are more guaranteed.

[0010] In order to further realize the utility model, a plurality of roller assemblies are arranged on the outer wall of the lifting platform, and the rollers in the roller assemblies cooperate with the columns, and the rollers are clamped in the grooves of the columns. The rollers are installed on the front, back, left and right sides of the lifting platform, and are symmetrically arranged. One side of the roller is connected to the lifting platform with bolts, and the other side is clamped in the column groove of the running frame through the rollers thereon and contacts with the wall plate of the groove, so as to facilitate sliding up and down on the columns of the running frame, guide the lifting platform, and prevent the lifting platform from getting stuck during the lifting process.

[0011] In order to further realize the utility model, an extension platform is arranged on one side of the lifting platform close to the ladle, and the sliding mechanism is arranged across the lifting platform and the extension platform. An extension platform extending out of the running frame is arranged at one end of the lifting platform to facilitate the installation of the slide rail.

[0012] In order to further realize the utility model, the sliding mechanism includes two sets of sliding rails arranged in parallel and sliding grooves matched with the sliding rails. The sliding rails are straddled on the lifting platform and the extension platform and are fixedly connected.

[0013] In order to further realize the utility model, the hydraulic push rod adopts a parallel hydraulic push rod with a rated output force of 1t and a stroke of 1200mm, and a semi-circular plate is provided on the base to support the motor of the hydraulic push rod. The motor flange at the rear end of the hydraulic push rod is supported by the semi-circular plate to balance it.

[0014] In order to further realize the utility model, the hydraulic push rod and the electric chain hoist are respectively connected to the electrical control mechanism.

[0015] In order to further realize the utility model, a plurality of universal wheels are arranged at the bottom of the running frame, and the universal casters with brakes are convenient for human power to push forward, backward, left and right movement.

[0016] In order to further realize the utility model, railings and safety doors are arranged on the periphery of the lifting platform. Railings are installed around to ensure the safety of operators during operation, and safety doors are designed on the railings to facilitate operators to enter and exit.

[0017] In order to further realize the utility model, the electrical control mechanism includes a PLC, a remote control, a hand controller, an emergency stop button and a limit switch which are interconnected. The hydraulic push rod and the chain electric hoist are respectively connected to the PLC. The PLC is provided with an emergency stop button, and the hydraulic push rod is provided with a limit switch. The PLC facilitates the realization of the up and down lifting function and the ventilation rotation forward and backward movement function. The emergency stop button is provided to ensure the emergency parking function in case of failure. The remote control and the hand controller are dual controlled to ensure that the hand controller can continue to work when the remote control fails, without affecting the production operation. The limit switch can realize the safety and controllability when lifting up and down and moving forward and backward to the extreme position.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The lifting platform in the utility model is installed in the middle of the running frame, and is a platform for placing air bricks, tools and workers to install air bricks. The lifting platform table is designed with hydraulic push rods, air brick supports, slide rails and adjustment bolts, so that the air bricks can be installed quickly and accurately. One end of the hydraulic push rod is connected to the card plate on the push plate through a hanging plate through a pin shaft, so that the air brick support is driven to slide along the slide rail by pushing the push plate. The slide rail is welded to the lifting platform and used in conjunction with the air brick support. It is straddled on the lifting platform and the extension platform, that is, its length extends outside the lifting platform, so that the air brick can slide back and forth on it. The arc of the air brick fixing block cooperates with the air brick so that the air brick can be placed in a balanced manner.

[0020] The utility model has the advantages of simple structure, convenient use, easy maintenance and safe use; it can realize the function of moving in any direction and ensure safety and stability during parking; a lifting platform is adopted, and the breathable bricks and personnel complete the installation work on the lifting platform, and the personnel safety is high; due to the adoption of an electric hydraulic push rod device, the use of the utility model to install the breathable bricks is more time-saving and labor-saving, and the time cost and labor cost are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the utility model (showing the hydraulic push rod pushing out state);

[0022] Figure 2 for Figure 1 Left view of

[0023] Figure 3 for Figure 1 A top view of

[0024] Figure 4 It is a structural schematic diagram of the horizontal push rod mechanism and the air-permeable brick conveying mechanism in the utility model;

[0025] Figure 5 for Figure 4 A top view of

[0026] Figure 6 for Figure 4 Left view of

[0027] The meanings of the reference numerals are as follows: 1. Traveling frame; 1-1. Column; 1-2. Crossbeam; 1-3. Connecting plate; 1-4. Electric chain hoist; 1-5. Chain; 2. Lifting platform; 3. Base; 4. Hydraulic push rod; 5. Sliding mechanism; 5-1. Slide rail; 5-2. Slide groove; 6. Air-permeable brick support; 6-1. Upper seat; 6-2. Lower seat; 6-3. Long round hole; 6-4. Bolt; 7. Air-permeable brick fixing block; 8 , push plate; 9, air brick; 10, hanging plate; 11, clamping plate; 12, pin shaft; 13, support; 14, long hole; 15, adjustment bolt; 16, extension table; 17, universal wheel; 18, support block; 19, air brick hole; 20, electrical control mechanism; 21, remote control; 22, manual controller; 23, limit switch; 24, brake; 25, railing; 26, safety door; 27, roller assembly; 28, ladle. DETAILED DESCRIPTION

[0028] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0029] like Figure 1-6 As shown, a mobile lifting device for installing air-permeable bricks comprises a running frame 1 and a lifting platform 2 arranged in the running frame. The running frame 1 is a rectangular structure, comprising four columns 1-1 and a plurality of beams 1-2 arranged between the columns 1-1. The columns 1-1 are made of H-shaped steel, and the beams 1-2 are made of channel steel or I-shaped steel. Connecting plates 1-3 are symmetrically arranged on the top beams 1-2, and chain electric hoists 1-4 are arranged on the connecting plates 1-3. The bottom end of the chain 1-5 of the chain electric hoist 1-4 is fixedly connected to the lifting platform 2, and a plurality of universal wheels 17 are arranged at the bottom of the running frame 1.

[0030] A horizontal push rod mechanism and a breathable brick conveying mechanism are arranged on the lifting platform 2. A plurality of roller assemblies 27 are arranged on the outer wall of the lifting platform 2. The rollers in the roller assembly 27 cooperate with the column 1-1. The rollers are clamped in the groove body of the column 1-1. An extension platform 16 is arranged on the side of the lifting platform 2 close to the ladle 28. A railing and a safety door are arranged on the periphery of the lifting platform. Railings 25 are installed around to ensure the safety of operators during operation. Safety doors 26 are designed on the railings 25 to facilitate the entry and exit of operators. The sliding mechanism 5 is straddled on the lifting platform 2 and the extension platform 16. The sliding mechanism 5 includes two sets of slide rails 5-1 arranged in parallel and slide grooves 5-2 matched with the slide rails 5-1. The slide rails 5-1 are straddled on the lifting platform 2 and the extension platform 16 and are fixedly connected. The horizontal push rod mechanism includes a base 3 and a hydraulic push rod 4 arranged on the base 3. A semicircular support block 12 is arranged on the base 3 for erecting the hydraulic push rod 4. The hydraulic push rod 4 adopts a parallel hydraulic push rod with a rated output force of 1t and a stroke of 1200mm. A semicircular plate is arranged on the base 3 to support the motor of the hydraulic push rod 4. The hydraulic push rod 4 and the chain electric hoist 1-4 are respectively connected to the electrical control mechanism. Supports 13 are symmetrically arranged on both sides of the hydraulic push rod 4 and are fixedly connected to the base 3. Long holes 14 that cooperate with each other are symmetrically arranged on the base 3 and the support 13, and adjustment bolts 15 are arranged in the long holes 14.

[0031] The air brick conveying mechanism includes a sliding mechanism 5, an air brick support 6 and an air brick fixing block 7. The base 3 and the sliding mechanism 5 are respectively arranged on the lifting platform 2. The air brick support 6 is arranged on the sliding mechanism 5. The push plate 8 and the air brick fixing block 7 are arranged on the air brick support 6. The air brick support 6 includes an upper seat 6-1 and a lower seat 6-2. A plurality of oblong holes 6-3 are arranged on the side wall of the upper seat 6-1. The outer ends of the oblong holes 6-3 are connected with the side walls of the upper seat 6-1, and the inner ends of the oblong holes 6-3 extend toward the central axis direction of the upper seat 6-1. The lower seat A plurality of screw holes corresponding to the oblong holes 6-3 are arranged on 6-2, and bolts 6-4 are arranged between the screw holes and the oblong holes 6-3 for connection. The top surface of the air brick fixing block 7 is an arc shape matched with the air brick 9. A hanging plate 10 is arranged on the side of the push plate 8 close to the hydraulic push rod 4, and a clamping plate 11 is arranged parallel to the end of the hydraulic push rod 4. The clamping plate 11 is clamped on both sides of the hanging plate 10, and a pin shaft 12 is passed between the clamping plate 11 and the hanging plate 10 for connection. The axes of the hydraulic push rod 4, the sliding mechanism 5, the air brick support 6, the push plate 8 and the air brick fixing block 7 are on the same plane.

[0032] The traveling frame 1 and the lifting platform 2 are respectively connected to the electrical control mechanism. The electrical control mechanism 20 includes a PLC, a remote controller 21, a hand controller 22, an emergency stop button and a limit switch 23 which are interconnected. The hydraulic push rod and the chain electric hoist are respectively connected to the PLC. The emergency stop button is arranged on the PLC. The limit switch 23 is arranged on the hydraulic push rod. The hand controller 22 is connected to the PLC. The remote controller 21 is connected to the PLC signal.

[0033] During operation, the ladle 28 that needs to replace the air brick 9 is placed horizontally on the ground, the running frame 1 is pushed to the front of the ladle through the universal wheel 17, the front, back, left, and right positions are adjusted according to the air holes, and the brake 24 of the universal wheel 17 is locked. Then the lifting platform 2 is lowered to 400mm from the ground, the required air bricks 9 and working tools are placed on the lifting platform 2, and the operator also climbs on the lifting platform 2 to start working.

[0034] First, place the air brick 9 on the air brick support 6, then lift the lifting platform 2 to the position of the first air brick hole 19, align the upper and lower positions, start the hydraulic push rod 4 to push the air brick support 6 to drive the slide 5-2 to slide along the slide rail 5-1 toward the air brick hole 19, and install the air brick 9 into the first air brick hole 19. If the left and right positions are not correct during the installation process, the position of the adjusting bolt 6-4 in the oblong hole 6-3 can be adjusted to align. After the first air brick 9 is installed, start the hydraulic push rod 4 to drive the air brick support 6 to retract, and raise the lifting platform 2 to a height of 1750mm to install the second air brick 9.

Claims

1. A mobile lifting device for installing air-permeable bricks, characterized in that: The invention comprises a running frame (1) and a lifting platform (2) arranged in the running frame, wherein a horizontal push rod mechanism and a breathable brick conveying mechanism are arranged on the lifting platform (2), the horizontal push rod mechanism comprises a base (3) and a hydraulic push rod (4) arranged on the base (3), the breathable brick conveying mechanism comprises a sliding mechanism (5), a breathable brick support (6) and a breathable brick fixing block (7), the base (3) and the sliding mechanism (5) are respectively arranged on the lifting platform (2), a breathable brick support (6) is arranged on the sliding mechanism (5), a push plate (8) and a breathable brick fixing block (7) are arranged on the breathable brick support (6), and the breathable brick conveying mechanism comprises a sliding mechanism (5), a breathable brick support (6) and a breathable brick fixing block (7), and the breathable brick support (6) is provided on the push plate (8) and the breathable brick fixing block (7). The top surface of the air brick fixing block (7) is an arc shape that matches the air brick (9); a hanging plate (10) is arranged on one side of the push plate (8) close to the hydraulic push rod (4); a clamping plate (11) is arranged parallel to the end of the hydraulic push rod (4); the clamping plate (11) is clamped on both sides of the hanging plate (10); a pin shaft (12) is passed through between the clamping plate (11) and the hanging plate (10) for connection; the axes of the hydraulic push rod (4), the sliding mechanism (5), the air brick support (6), the push plate (8) and the air brick fixing block (7) are on the same plane; and the running frame (1) and the lifting platform (2) are respectively connected to the electrical control mechanism (20).

2. The mobile lifting device for installing the air-permeable brick according to claim 1, characterized in that: A semicircular arc-shaped support block (18) is provided on the base (3) for mounting the hydraulic push rod (4); supports (13) are symmetrically provided on both sides of the hydraulic push rod (4) and fixedly connected to the base (3); long holes (14) that cooperate with each other are symmetrically provided on the base (3) and the supports (13); and adjustment bolts (15) are provided in the long holes (14).

3. The movable lifting device for installing the air-permeable brick according to claim 2, characterized in that: The air-permeable brick support (6) comprises an upper seat (6-1) and a lower seat (6-2); a plurality of oblong holes (6-3) are arranged on the side wall of the upper seat (6-1); the outer ends of the oblong holes (6-3) penetrate the side wall of the upper seat (6-1); the inner ends of the oblong holes (6-3) extend toward the central axis of the upper seat (6-1); a plurality of screw holes corresponding to the oblong holes (6-3) are arranged on the lower seat (6-2); bolts (6-4) are arranged between the screw holes and the oblong holes (6-3) for connection.

4. The movable lifting device for installing the air-permeable brick according to claim 3, characterized in that: The traveling frame (1) is a rectangular structure, comprising four columns (1-1) and a plurality of beams (1-2) arranged between the columns (1-1), the columns (1-1) being made of H-shaped steel, the beams (1-2) being made of channel steel or I-shaped steel, connecting plates (1-3) being symmetrically arranged on the top beams (1-2), a chain electric hoist (1-4) being arranged on the connecting plates (1-3), and the bottom end of the chain (1-5) of the chain electric hoist (1-4) being fixedly connected to the lifting platform (2).

5. The movable lifting device for installing the air-permeable brick according to claim 4, characterized in that: A plurality of roller assemblies (27) are arranged on the outer wall of the lifting platform (2); the rollers in the roller assemblies (27) cooperate with the columns (1-1), and the rollers are clamped in the grooves of the columns (1-1).

6. The movable lifting device for installing the air-permeable brick according to claim 5, characterized in that: An extension platform (16) is arranged on one side of the lifting platform (2) close to the ladle (28), and the sliding mechanism (5) is arranged across the lifting platform (2) and the extension platform (16).

7. The movable lifting device for installing the air-permeable brick according to claim 6, characterized in that: The sliding mechanism (5) comprises two sets of sliding rails (5-1) arranged in parallel and sliding grooves (5-2) cooperating with the sliding rails (5-1); the sliding rails (5-1) are straddled on the lifting platform (2) and the extension platform (16) and are fixedly connected.

8. The movable lifting device for installing the air-permeable brick according to claim 7, characterized in that: The hydraulic push rod (4) is a parallel hydraulic push rod with a rated output force of 1 t and a stroke of 1200 mm. A semicircular arc plate is provided on the base (3) for supporting the motor of the hydraulic push rod (4).

9. The movable lifting device for installing the air-permeable brick according to claim 8, characterized in that: The hydraulic push rod (4) and the electric chain hoist (1-4) are respectively connected to the electrical control mechanism (20).

10. The movable lifting device for installing the air-permeable brick according to claim 9, characterized in that: A plurality of universal wheels (17) are arranged at the bottom of the running frame (1).

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