Replacement system for crane beam in limited space of steel plant

Abstract

The utility model relates to a replacing system for a crane beam in a limited space of a steel plant. The replacing system comprises a converter platform and a replacing device, the replacing device is located on the converter platform and can move on the converter platform, the new crane beam is placed on the converter platform, and the replacing device is used for dismantling the old crane beam and installing the new crane beam; by arranging the replacing device, the converter platform does not need to be reinforced, the construction period is shortened, the construction cost is saved, and the crane beam is convenient to install and replace; meanwhile, the rapid recovery capacity of the production line is guaranteed, the construction period is guaranteed, and potential safety hazards caused by the complex environment are avoided.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, and in particular to a replacement system for overhead crane beams in confined spaces of steelmaking plants. Background Technology

[0002] Currently, the overhead crane beams in the steelmaking plant are at a relative elevation of +28.65m. The overhead crane beams that need to be replaced are located above the converter platform in the steelmaking workshop, and large crawler cranes cannot lift the overhead crane beams from the ground. Furthermore, due to the insufficient load-bearing capacity of the converter platform, reinforcement is required, leading to complicated construction and high costs. Utility Model Content

[0003] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a replacement system for overhead crane beams in confined spaces of steelmaking plants, which has the advantages of improving construction efficiency and reducing construction costs.

[0004] The above-mentioned utility model objective is achieved through the following technical solution: a replacement system for overhead crane beams in confined spaces of steelmaking plants, comprising a converter platform and a replacement device; the replacement device is located on the converter platform, the replacement device is movable on the converter platform, a new overhead crane beam is placed on the converter platform, and the replacement device is used for removing the old overhead crane beam and installing the new overhead crane beam.

[0005] Preferably, the replacement system for overhead crane beams in confined spaces of steelmaking plants provided by this utility model includes two modular vehicles and at least two lifting units; the two modular vehicles are placed at intervals on the converter platform, and the modular vehicles are movable on the converter platform; the bottom ends of the lifting units are connected to the two modular vehicles on opposite sides respectively, and the two lifting units are spaced apart along the X direction of the modular vehicles.

[0006] Preferably, the replacement system for overhead crane beams in confined spaces of steelmaking plants provided by this utility model includes a lifting unit comprising a lifting component and two towers. The two towers are arranged opposite to each other, with their bottom ends connected to the top surfaces of two modules respectively. The top ends of the two towers are connected to the bottom end of the lifting component. One end of the lifting component facing the old overhead crane beam to be disassembled extends outward along the Y direction of the module vehicle. The bottom of the extended end of the lifting component is used to connect with the old overhead crane beam or the new overhead crane beam.

[0007] Preferably, the replacement system for overhead crane beams in confined spaces of steelmaking plants provided by this utility model includes a lifting assembly comprising a lifting beam and a hydraulic lifter. The top ends of the two towers are connected to the bottom surface of the lifting beam. One end of the lifting beam facing the old overhead crane beam to be disassembled extends outward along the Y direction. The hydraulic lifter is installed at the extended end of the lifting beam and is used to connect with the old overhead crane beam or the new overhead crane beam.

[0008] Preferably, the replacement system for overhead crane beams in confined spaces of steelmaking plants provided by this utility model includes a lifting beam comprising a connecting rod and two fixing rods. The two fixing rods are spaced apart along the X direction. The top ends of the two towers are connected to the bottom ends of the fixing rods. One end of the fixing rod facing the old overhead crane beam to be disassembled extends outward along the Y direction of the modular vehicle. The bottom surface of the connecting rod is connected to the top surface of the two fixing rods. The connecting rod is positioned near the extended end of the fixing rod. The hydraulic lifter is mounted on the connecting rod.

[0009] Preferably, the replacement system for overhead crane beams in confined spaces of steelmaking plants provided by this utility model has at least two lifting lugs at the top of both the new and old overhead crane beams. The lifting lugs are arranged in a one-to-one correspondence with the hydraulic lifters, and the mounting plate on the hydraulic lifters is used to connect with the lifting lugs.

[0010] Preferably, the replacement system for overhead crane beams in confined spaces of steelmaking plants provided by this utility model involves placing the new overhead crane beam on the converter platform and being located between the next spans of the old overhead crane beam to be dismantled.

[0011] Preferably, in the steelmaking plant confined space crane beam replacement system provided by this utility model, the disassembled old crane beam is placed on the converter platform and located between the upper spans of the installation position.

[0012] Preferably, the steelmaking plant confined space overhead crane beam replacement system provided by this utility model includes multiple overhead crane axles on the converter platform, which are spaced apart along the width direction of the converter platform. Each overhead crane axle includes multiple columns and multiple overhead crane beams. The bottom ends of the columns pass through the converter platform and are inserted into the ground. The columns are spaced apart along the length direction of the converter platform. An overhead crane beam is provided between every two adjacent columns, and the two adjacent overhead crane beams are connected by bolts.

[0013] Preferably, the replacement system for overhead crane beams in confined spaces of steelmaking plants provided by this utility model includes a column comprising a long part and a short part, the long part being connected to the short part via a connecting part, and the two ends of the overhead crane beam being respectively installed on two adjacent short parts.

[0014] In summary, the beneficial technical effects of this utility model are as follows: The replacement system for overhead crane beams in confined spaces of steelmaking plants provided in this application includes a converter platform and a replacement device; the replacement device is located on the converter platform and can move on the converter platform, with the new overhead crane beam placed on the converter platform; the replacement device is used to remove the old overhead crane beam and install the new overhead crane beam; by setting up the replacement device, there is no need to reinforce the converter platform, shortening the construction period, saving construction costs, and facilitating the installation and replacement of overhead crane beams; at the same time, it ensures the rapid recovery capability of the production line, guarantees the construction period, and avoids safety hazards caused by complex environments. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the replacement system for the overhead crane beam in the confined space of a steelmaking plant provided in this embodiment of the utility model.

[0016] Figure 2 This is a schematic diagram of the connection structure between the hydraulic lifter and the traveling beam in the replacement system for the traveling beam in the confined space of a steelmaking plant provided in this embodiment of the utility model.

[0017] Figure 3 This is a schematic diagram of the replacement device in the replacement system for overhead crane beams in a confined space of a steelmaking plant provided in this embodiment of the utility model.

[0018] Figure 4 This is a front view of the replacement device in the replacement system for overhead crane beams in confined spaces of a steelmaking plant provided in this embodiment of the utility model.

[0019] Figure 5 This is a schematic diagram of the modular vehicle in the steelmaking plant confined space crane beam replacement system provided in this embodiment of the utility model.

[0020] Figure 6 This is a schematic diagram of the connection structure between the hydraulic lifter and the traveling beam in the replacement system for the traveling beam in the confined space of a steelmaking plant provided in this embodiment of the utility model.

[0021] In the diagram, 1. Replacement system; 10. Converter platform; 11. Crane axle; 111. Column; 1111. Long section; 1112. Short section; 1113. Connecting section; 1114. Horizontal bar; 1115. Inclined bar; 20. Replacement device; 21. Modular car; 22. Lifting unit; 221. Lifting assembly; 2211. Lifting beam; 2212. Hydraulic lifter; 2213. Connecting rod; 2214. Fixing rod; 2215. Mounting plate; 222. Tower; 2. New crane beam; 3. Old crane beam; 4. Lifting lug. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings.

[0023] Reference Figure 1 and Figure 2 This utility model discloses a replacement system 1 for overhead crane beams in confined spaces of a steelmaking plant, comprising a converter platform 10 and a replacement device 20. The replacement device 20 is located on the converter platform 10 and is movable on the converter platform 10. A new overhead crane beam 2 is placed on the converter platform 10. The replacement device 20 is used to remove the old overhead crane beam 3 and install the new overhead crane beam 2. By setting up the replacement device 20, there is no need to reinforce the converter platform 10, shortening the construction period, saving construction costs, and facilitating the installation and replacement of overhead crane beams. At the same time, it ensures the rapid recovery capability of the production line, guarantees the construction period, and avoids safety hazards caused by complex environments.

[0024] Specifically, the converter platform 10 is equipped with multiple traveling shafts 11, which are spaced apart along the width of the converter platform 10. Each traveling shaft 11 includes multiple columns 111 and multiple traveling beams. The bottom ends of the multiple columns 111 pass through the converter platform 10 and are inserted into the ground. The multiple columns 111 are spaced apart along the length of the converter platform 10. A traveling beam is provided between every two adjacent columns 111, and the two adjacent traveling beams are connected by bolts.

[0025] It should be noted that the crane beam is either the old crane beam 3 or the newly installed crane beam 2.

[0026] The column 111 includes a long part 1111 and a short part 1112. The long part 1111 is connected to the short part 1112 through a connecting part 1113. The two ends of the traveling beam are respectively installed on two adjacent short parts 1112.

[0027] Specifically, the connecting part 1113 includes a horizontal bar 1114 and a reinforcing unit. The two ends of the horizontal bar 1114 are respectively connected to the outer peripheral walls of the long part 1111 and the short part 1112. The two ends of the reinforcing unit are respectively connected to the outer peripheral walls of the long part 1111 and the short part 1112. The reinforcing unit and the horizontal bar 1114 are spaced apart.

[0028] The reinforcing unit includes two inclined rods 1115, which are arranged in a cross pattern.

[0029] In this embodiment, the new crane beam 2 is placed on the converter platform 10 and is located between the next spans of the old crane beam 3 to be dismantled; the dismantled old crane beam 3 is placed on the converter platform 10 and is located between the previous spans of the installation position.

[0030] For ease of explanation, the following description will take the replacement of the old crane beam 3 on axle 4-5 / A as an example.

[0031] Where A is the A-axis traveling beam, and 4-5 is the old traveling beam 3 between column 4 and column 5.

[0032] The new overhead crane beam 2 is hoisted onto the converter platform 10 using the overhead crane in the steelmaking workshop, and then placed on the converter platform 10 of axis 5-6 / A. The old overhead crane beam 3 is placed on the converter platform 10 of axis 3-4 / A.

[0033] Continue to refer to Figures 3 to 6 In this embodiment, the replacement device 20 includes two modular vehicles 21 and at least two lifting units 22. The two modular vehicles 21 are placed at intervals on the converter platform 10. The modular vehicles 21 can move on the converter platform 10. The two opposite sides of the bottom end of the lifting units 22 are respectively connected to the two modular vehicles 21. The two lifting units 22 are arranged at intervals along the X direction of the modular vehicles 21.

[0034] like Figure 3 As shown, there are two lifting units 22. Of course, there can also be four or six lifting units 22.

[0035] The lifting unit 22 includes a lifting component 221 and two towers 222. The two towers 222 are arranged opposite to each other. The bottom ends of the two towers 222 are respectively connected to the top surfaces of the two modules. The top ends of the two towers 222 are connected to the bottom ends of the lifting component 221. One end of the lifting component 221 facing the old crane beam 3 to be dismantled extends outward along the Y direction of the module vehicle 21. The bottom of the extended end of the lifting component 221 is used to connect with the old crane beam 3 or the new crane beam 2.

[0036] For example, the bottom end of the tower 222 and the module vehicle 21 can be connected by bolts. Of course, the bottom end of the tower 222 and the module vehicle 21 can also be connected by welding.

[0037] In this embodiment, the lifting assembly 221 includes a lifting beam 2211 and a hydraulic lifter 2212. The top ends of the two towers 222 are connected to the bottom surface of the lifting beam 2211. The end of the lifting beam 2211 facing the old crane beam 3 to be dismantled extends outward along the Y direction. The hydraulic lifter 2212 is installed at the extended end of the lifting beam 2211 and is used to connect with the old crane beam 3 or the new crane beam 2.

[0038] It should be noted that the modular vehicle 21, the tower 222, and the hydraulic lift 2212 are all devices well known to those skilled in the art, and the structure of the modular vehicle 21, the tower 222, and the hydraulic lift 2212 will not be described in detail here.

[0039] Furthermore, in this embodiment, the lifting beam 2211 includes a connecting rod 2213 and two fixing rods 2214. The two fixing rods 2214 are spaced apart along the X direction. The top ends of the two towers 222 are connected to the bottom ends of the fixing rods 2214. One end of the fixing rods 2214 extends outward along the Y direction of the modular vehicle 21 towards the old crane beam 3 to be disassembled. The bottom surface of the connecting rod 2213 is connected to the top surface of the two fixing rods 2214. The connecting rod 2213 is located near the extended end of the fixing rods 2214. The hydraulic lifter 2212 is installed on the connecting rod 2213.

[0040] For example, the connecting rod 2213 and the fixing rod 2214 can be connected by welding. Of course, the connecting rod 2213 and the fixing rod 2214 can also be connected by bolts.

[0041] The top of both the new crane beam 2 and the old crane beam 3 is provided with at least two lifting lugs 4. The lifting lugs 4 are provided one-to-one with the hydraulic lifters 2212. The mounting plate 2215 on the hydraulic lifters 2212 is used to connect with the lifting lugs 4.

[0042] The replacement process of the overhead crane beam replacement system 1 for confined spaces in the steelmaking plant provided in this embodiment is as follows: Taking the replacement of the old overhead crane beam 3 of axle 4-5 / A as an example, the module car 21, tower 222, and hydraulic lifter 2212 are hoisted to the converter platform 10 at a preset height using the overhead crane in the steelmaking workshop, and the module car 21, tower 222, and hydraulic lifter 2212 are assembled into a replacement device 20 on the converter platform 10; the new overhead crane beam 2 is hoisted to the converter platform 10 at a preset height using the overhead crane in the steelmaking workshop, and the new overhead crane beam 2 is then... The gantry beam 2 is placed between shafts 5-6 / A. After the overhead crane in the steelmaking workshop is shut down, a lifting lug 4 is welded to the top of the old gantry beam 3 to be replaced on shaft 4-5 / A using a ladder truck. The lifting lug 4 is connected to the lifting point of the hydraulic lifter 2212 in the replacement device 20. The bolts on the old gantry beam 3 to be replaced on shaft 4-5 / A are then removed. The old gantry beam 3 to be replaced is lifted to 100mm from the installation position using the hydraulic lifter 2212 above the tower 222. The modular vehicle 21 then moves the old gantry beam 3 to be replaced backward, and the hydraulic lifter 2212 is used again. 12. Lower the old crane beam 3 to be replaced to a distance of 50mm from the converter platform and stop; move the modular car 21 to one side, and move the old crane beam 3 to be replaced on axis 4-5 / A and place it on converter platform 10, located on axis 3-4 / A; during installation, adopt the reverse construction process of dismantling, move the replacement device 20 to axis 5-6 / A where the new crane beam 2 is placed, and connect the lifting point of the hydraulic lifter 2212 in the replacement device 20 to the lifting lug 4 on the new crane beam 2; hoist the new crane beam 2 to one side of the replacement device 20, using the tower frame After the hydraulic lifter 2212 above 222 lifts the new trolley beam 2 to a height of 50mm above the converter platform, the replacement device 20 moves the new trolley beam 2 to the front of the axis of the installation position 4-5 / A. After the hydraulic lifter 2212 lifts the new trolley beam 2 to a height 100mm higher than the positioning height, the module car 21 moves forward and aligns the new trolley beam 2 with the entire trolley axis 11 on the same horizontal line. The hydraulic lifter 2212 then lowers the new trolley beam 2 to the positioning height and fixes the new trolley beam 2 in place.

[0043] The steelmaking plant confined space overhead crane beam replacement system 1 provided in this application includes a converter platform 10 and a replacement device 20. The replacement device 20 is located on the converter platform 10 and can move on the converter platform 10. The new overhead crane beam 2 is placed on the converter platform 10. The replacement device 20 is used to remove the old overhead crane beam 3 and install the new overhead crane beam 2. By setting up the replacement device 20, it is not necessary to reinforce the converter platform 10, which shortens the construction period, saves construction costs, and facilitates the installation and replacement of overhead crane beams. At the same time, it ensures the rapid recovery capability of the production line, guarantees the construction period, and avoids safety hazards caused by complex environments.

[0044] The replacement system 1 for overhead crane beams in confined spaces of steelmaking plants provided by this utility model has the following advantages: the device has a simple structure, is easy to manufacture, and is easy to operate.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0046] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A replacement system for overhead crane beams in confined spaces of steelmaking plants, characterized in that: Including converter platform and replacement device; The replacement device is located on the converter platform and is movable on the converter platform. The new crane beam is placed on the converter platform. The replacement device is used to remove the old crane beam and install the new crane beam.

2. The replacement system for overhead crane beams in confined spaces of steelmaking plants according to claim 1, characterized in that: The replacement device includes two modular cars and at least two lifting units; the two modular cars are placed at intervals on the converter platform, and the modular cars are movable on the converter platform. The bottom ends of the lifting units are connected to the two modular cars on opposite sides respectively, and the two lifting units are spaced apart along the X direction of the modular cars.

3. The replacement system for overhead crane beams in confined spaces of steelmaking plants according to claim 2, characterized in that: The lifting unit includes a lifting component and two towers. The two towers are arranged opposite each other, and the bottom ends of the two towers are respectively connected to the top surfaces of the two modules. The top ends of the two towers are connected to the bottom end of the lifting component. One end of the lifting component facing the old crane beam to be dismantled extends outward along the Y direction of the module vehicle. The bottom of the extended end of the lifting component is used to connect with the old crane beam or the new crane beam.

4. The replacement system for overhead crane beams in confined spaces of steelmaking plants according to claim 3, characterized in that: The lifting assembly includes a lifting beam and a hydraulic lifter. The top ends of both towers are connected to the bottom surface of the lifting beam. One end of the lifting beam, facing the old crane beam to be dismantled, extends outward along the Y direction. The hydraulic lifter is installed at the extended end of the lifting beam and is used to connect with the old crane beam or the new crane beam.

5. The replacement system for overhead crane beams in confined spaces of steelmaking plants according to claim 4, characterized in that: The lifting beam includes a connecting rod and two fixing rods. The two fixing rods are spaced apart along the X direction. The top ends of the two towers are connected to the bottom ends of the fixing rods. One end of the fixing rod facing the old crane beam to be dismantled extends outward along the Y direction of the modular vehicle. The bottom surface of the connecting rod is connected to the top surface of the two fixing rods. The connecting rod is located near the extended end of the fixing rod. The hydraulic lifter is installed on the connecting rod.

6. The replacement system for overhead crane beams in confined spaces of steelmaking plants according to claim 5, characterized in that: Both the new crane beam and the old crane beam are provided with at least two lifting lugs at their top ends. Each lifting lug corresponds to a hydraulic lifter, and the mounting plate on the hydraulic lifter is used to connect with the lifting lug.

7. The replacement system for overhead crane beams in confined spaces of steelmaking plants according to claim 1, characterized in that: The new crane beam is placed on the converter platform and is located between the next spans of the old crane beam to be dismantled.

8. The replacement system for overhead crane beams in confined spaces of steelmaking plants according to claim 1, characterized in that: The disassembled old crane beam is placed on the converter platform, located between the spans above the installation position.

9. The replacement system for overhead crane beams in confined spaces of steelmaking plants according to claim 1, characterized in that: The converter platform is equipped with multiple traveling axles, which are spaced apart along the width of the converter platform. Each traveling axle includes multiple columns and multiple traveling beams. The bottom ends of the columns pass through the converter platform and are inserted into the ground. The columns are spaced apart along the length of the converter platform. A traveling beam is provided between every two adjacent columns, and the two adjacent traveling beams are connected by bolts.

10. The replacement system for overhead crane beams in confined spaces of steelmaking plants according to claim 9, characterized in that: The column includes a long part and a short part, the long part is connected to the short part through a connecting part, and the two ends of the traveling beam are respectively installed on two adjacent short parts.

Images