Rolling mill stand hoisting balance beam
By designing a balance beam for the mill stand hoisting, and adopting a plate-beam composite structure and a connecting rod hook system, the problem of a single crane being unable to lift the mill stand was solved, achieving efficient hoisting and optimized space utilization.
Patent Information
- Application Number
- CN202423184128.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-24
AI Technical Summary
In existing technologies, a single crane cannot lift the rolling mill frame, and using two cranes for lifting affects the lifting height and results in poor space utilization.
Design a mill stand hoisting balance beam, which adopts a two-plate beam combination structure, and is equipped with an installation frame, connecting rods and trolley hooks. The lifting tools and lifting lugs are connected by pins and wire ropes to achieve single-side hoisting of heavy mill stands, reduce the lifting height of the hook, and meet the hoisting space requirements.
It enables the single lifting of heavy rolling mill stands, reduces the lifting height of the hook, avoids the problem of poor space utilization, and improves lifting efficiency.
Smart Images
Figure CN223495953U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rolling mill installation technology, specifically to a rolling mill frame hoisting balance beam. Background Technology
[0002] The mill stand is one of the key components in the manufacturing of steel rolling equipment. Its weight is generally around 40 to 400 tons and its height is generally around 8 to 16 meters. During the trial assembly of the mill at the manufacturing plant and the final installation at the installation site, the mill stand must be brought to the final working upright state. Since the mill stand is a heavy and tall sheet-like component, there are several difficulties in the erection process.
[0003] However, the lifting capacity of a single overhead crane in a typical workshop cannot meet the hoisting requirements of the rolling mill frame. Even with the use of two cranes, the space height cannot meet the hoisting requirements. Utility Model Content
[0004] Technical problems to be solved
[0005] To address the aforementioned shortcomings of existing technologies, this utility model provides a mill stand hoisting balance beam, which effectively solves the problems in existing technologies where a single crane cannot lift the mill stand, and where dual-crane hoisting affects the hoisting height.
[0006] Technical solution
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] This utility model provides a rolling mill stand hoisting balance beam, including a balance beam, which is a combination structure of two sets of plate beams. The bottom ends of the two sides of the plate beams are fixedly connected by a mounting frame. The mounting frame is a hollow cavity structure without a top surface, and two sets of connecting rods are provided inside the mounting frame. A crane hook is provided between the two sets of connecting rods. The rolling mill stand is provided in the middle of the balance beam. A lifting device is provided at the top of the rolling mill stand. A hanging rod is provided in the middle of the lifting device. Lifting lugs are fixed on the side wall of the balance beam. The lifting lugs and the hanging rod are connected and fixed by steel wire ropes. A connecting hole is opened in the middle of the balance beam. A hoisting window is opened in the middle of the rolling mill stand. Pins are inserted into the hoisting window and the connecting hole. Anti-slip blocks are sleeved on both sides of the pins.
[0009] Furthermore, each set of balance beams has a set of lifting lugs fixed on both sides, and one end of each lifting lug is connected and fixed to the lifting device by a steel wire rope.
[0010] Furthermore, a limit plate structure is fixed to the outer side of both the hanging rod and the lifting lug.
[0011] Furthermore, the lifting device is fixedly connected to the top of the rolling mill frame via bolts.
[0012] Furthermore, the bottom ends of the two sets of plate beam structures in the balance beam are fixedly connected to the mounting frame structure.
[0013] Furthermore, the width of the rolling mill stand is adapted to the central spatial dimensions of the balance beam.
[0014] Beneficial effects
[0015] The technical solution provided by this utility model has the following advantages compared with the known public technology:
[0016] This utility model, through its balanced beam structure, allows the user to pass through the mill frame and position themselves in the middle of the balanced beam. When the balanced beam is raised to the hoisting window, a pin structure can be used to pass through the hoisting window and the connecting hole to achieve a connection and fixation. At the same time, the user can pre-attach and connect both ends of the wire rope structure to the hanging rod and lifting lug structure on the lifting device, respectively, to facilitate the subsequent pin-anti-slip block fixing process. Each side of the balanced beam is equipped with two sets of lifting device-wire rope-lifting lug combination structures, which can play a role in balancing stress. Therefore, in on-site use, it can be matched and connected either through the pin structure or through the above-mentioned structure.
[0017] In this device, mounting frame structures are provided at the bottom of both sides of the balance beam. Users can use the connecting rod structure inside to drive the crane hook structure to hook with the connecting rod on that side. Compared with the existing structure, this device adopts a two-sided hooking structure, which has two advantages: First, users can lift a larger rolling mill stand at a time, reduce the lifting height of the hook, and realize the hoisting and positioning of the rolling mill stand. Second, the space height can also meet the hoisting requirements during hoisting, avoiding the problem of poor space utilization caused by double balance beams. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the structure of this utility model;
[0020] Figure 2 This is a front view of the structure of this utility model;
[0021] Figure 3 This is a side view of the structure of this utility model;
[0022] Figure 4 This is an exploded view of the structure of this utility model;
[0023] Figure 5 This is an exploded view of the mounting frame in this utility model;
[0024] Figure 6 This is a structural exploded view of Embodiment 2 of this utility model.
[0025] The labels in the diagram represent: 1. Balance beam; 11. Connecting hole; 2. Rolling mill frame; 21. Lifting window; 22. Side plate; 3. Lifting tool; 4. Hanging rod; 5. Wire rope; 6. Mounting frame; 61. Connecting rod; 62. Crane hook; 7. Lifting lug; 8. Pin; 81. Positioning block; 82. Auxiliary block. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0027] The present invention will be further described below with reference to the embodiments.
[0028] Example: A rolling mill stand hoisting balance beam, see attached figure. Figure 1 -Appendix Figure 5The system includes a balance beam 1, which is a combination structure of two sets of plate beams. The bottom ends of the two sides of the plate beams are fixedly connected by a mounting frame 6. The mounting frame 6 is a hollow cavity structure without a top surface, and two sets of connecting rods 61 are provided inside the mounting frame 6. A crane hook 62 is provided between the two sets of connecting rods 61. A rolling mill frame 2 is provided in the middle of the balance beam 1. A lifting device 3 is provided at the top of the rolling mill frame 2. A hanging rod 4 is provided in the middle of the lifting device 3. Lifting lugs 7 are fixed on the side wall of the balance beam 1. The lifting lugs 7 and the hanging rod 4 are connected and fixed by steel wire ropes 5. A connecting hole 11 is opened in the middle of the balance beam 1, and a lifting window 21 is opened in the middle of the rolling mill frame 2. A pin 8 is inserted into the hoisting window 21 and the connecting hole 11; anti-slip blocks 81 are fitted on both sides of the pin 8. Through the set balance beam 1 structure, the user can pass through the mill frame 2 and place it in the middle of the balance beam 1. When the balance beam 1 is lifted to the hoisting window 21, the pin 8 structure can be used to pass through the hoisting window 21 and the connecting hole 11 to achieve connection and fixation. At the same time, the user can hang and connect the two ends of the wire rope 5 structure to the hanging rod 4 and the lifting lug 7 structure on the hoisting device 3 respectively. Each side of the balance beam 1 is equipped with two sets of combination structures of hoisting device 3-wire rope 5-lifting lug 7. Therefore, in the field, it can be matched and connected through the pin 8 structure, and secondly, it can be connected through the above structure.
[0029] Each set of balance beams 1 has a set of lifting lugs 7 fixed on both sides, and one end of each lifting lug 7 is connected and fixed to the lifting device 3 by a steel wire rope 5; the outer side of the hanging rod 4 and the lifting lug 7 are fixed with a limit plate structure; the lifting device 3 is fixedly connected to the top of the rolling mill frame 2 by a bolt structure; the bottom ends of the two sets of plate beam structures in the balance beam 1 are fixedly connected to the mounting frame 6 structure; the width of the rolling mill frame 2 is adapted to the central space dimension of the balance beam 1; in this device, the bottom ends of both sides of the balance beam 1 are provided with mounting frame 6 structures, and the user can use the connecting rod 61 structure inside to drive the crane hook 62 structure to hook with the connecting rod 61 on that side. Compared with the existing structure, this device adopts a two-sided hooking structure, which has two advantages: first, the user can lift a larger weight of the rolling mill frame 2 at a time, reduce the lifting height of the hook, and realize the hoisting and positioning of the rolling mill frame 2; second, the space height can also meet the hoisting requirements when hoisting, avoiding the problem of poor space utilization caused by double balance beams 1.
[0030] Example 2: In this example, based on Example 1, such as... Figure 6As shown: This device can also be used for the dismantling of large rolling mill stands. When dismantling the rolling mill stand 2, the middle part of the rolling mill stand 2 on one side can be sleeved with the balance beam 1, and the pin shaft 8 can be sleeved in the hoisting window 21 and the connecting hole 11 to achieve combination. After that, it is convenient to dismantle the rolling mill stand 2 on the other side or the rolling mill stand 2 on the other side. The side plate 22 structure is set in the rolling mill stand 2, and the auxiliary plate 82 structure is set on the inner side of the pin shaft 8 to facilitate dismantling.
[0031] Example 3: Based on Example 1, this device can also be used on an overall hoisting hot straightening machine. Specifically, the top of the balance beam 1 with crane lugs 62 on both sides is fitted inside the hot straightening machine, and the hot straightening machine is hoisted / lifted by the structure on the balance beam 1.
[0032] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.
Claims
1. A rolling mill stand hoisting balance beam, characterized in that, The structure includes a balance beam (1), which is a combination of two sets of plate beams. The bottom ends of the two sides of the plate beams are fixedly connected by a mounting frame (6). The mounting frame (6) is a hollow cavity structure without a top surface. Two sets of connecting rods (61) are provided inside the mounting frame (6). A crane hook (62) is provided between the two sets of connecting rods (61). A rolling mill frame (2) is provided in the middle of the balance beam (1). A lifting device (3) is provided at the top of the rolling mill frame (2). A hanging rod (4) is provided in the middle of the fixture (3), and a lifting lug (7) is fixed on the side wall of the balance beam (1). The lifting lug (7) and the hanging rod (4) are connected and fixed by a steel wire rope (5). A connecting hole (11) is opened in the middle of the balance beam (1), and a hoisting window (21) is opened in the middle of the rolling mill frame (2). A pin (8) is inserted into the hoisting window (21) and the connecting hole (11), and anti-slip blocks (81) are sleeved on both sides of the pin (8).
2. The mill stand hoisting balance beam according to claim 1, characterized in that, Each set of balance beams (1) has a set of lifting lugs (7) fixed on both sides, and one end of each lifting lug (7) is connected and fixed to the lifting device (3) by a steel wire rope (5).
3. The mill stand hoisting balance beam according to claim 1, characterized in that, The outer sides of the hanging rod (4) and the lifting lug (7) are both fixed with a limit plate structure.
4. A rolling mill stand hoisting balance beam according to claim 1, characterized in that, The lifting device (3) is fixedly connected to the top of the rolling mill frame (2) by bolts.
5. A rolling mill stand hoisting balance beam according to claim 4, characterized in that, The bottom ends of the two sets of plate beam structures in the balance beam (1) are fixedly connected to the mounting frame (6) structure.
6. A rolling mill stand hoisting balance beam according to claim 5, characterized in that, The width of the mill stand (2) is adapted to the central space dimension of the balance beam (1).