Hoisting balance beam of adjustable rolling mill stand
By designing an adjustable mill stand hoisting balance beam, and adopting a plate beam structure and adjustable lifting lug assembly, the problems of the existing mill hoisting beam's single function and insufficient lifting capacity are solved, realizing stable hoisting and flexible adjustment of the mill stand.
Patent Information
- Application Number
- CN202423185415.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-12-24
AI Technical Summary
The existing rolling mill hoisting beams have a relatively simple function, with a small lifting capacity per crane, and require multiple position adjustments during hoisting to meet stability requirements.
An adjustable mill stand lifting balance beam was designed, which adopts a two-plate beam structure, fixed by limit blocks, and has adjustable lifting lugs on both sides. Combined with lifting rings and sliding lifting lugs, it can be moved and adjusted using a crane hook to achieve stability of the center of gravity and lifting flexibility.
It improves hoisting stability and lifting weight, can adapt to rolling mill stands of different sizes, solves the problem of insufficient lifting capacity of a single overhead crane, and realizes stable hoisting of rolling mill stands.
Smart Images
Figure CN223480615U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hoisting balance beam technology, specifically to an adjustable rolling mill stand hoisting balance beam. Background Technology
[0002] The mill archway 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. When the mill is trial-assembled in the manufacturing plant and finally installed on the installation site, the mill archway must be in the final working state. Since the archway is a heavy and tall sheet-like component, there are several difficulties in the erection process.
[0003] The standard dimensions of the overhead crane beams used for hoisting rolling mills are not adjustable, resulting in poor versatility. In use, the lifting capacity of a single crane is insufficient, and the lifting position needs to be adjusted multiple times to meet the requirements for stable hoisting and movement. Utility Model Content
[0004] Technical problems to be solved
[0005] To address the aforementioned shortcomings of existing technologies, this utility model provides an adjustable mill stand hoisting balance beam, which effectively solves the problems of limited functionality of existing hoisting beams and small lifting capacity of a single overhead crane during use.
[0006] Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] This utility model provides an adjustable mill stand lifting balance beam, including a balance beam, which is a two-plate beam structure, fixedly connected on both sides by limiting blocks. Adjustable lifting lug assemblies are fitted on the outer sides of both ends of the balance beam. A lifting ring is fitted in the middle of the balance beam, and a central groove is formed at the bottom of the lifting ring. A connecting groove is formed on both sides of the central groove at the bottom of the lifting ring, and a connecting component is installed within the connecting groove. The bottom end of the connecting component is fixed to the mill stand. The connecting component includes a flange fixed to the top of the mill stand, a stand lifting lug fixed to the top of the flange, and a pin fitted in the middle of the stand lifting lug and within the connecting groove. The adjustable lifting lug assemblies on both sides include sliding lifting lugs and hook rods set at the top of the sliding lifting lugs. The tops of the hook rods on both sides are fixedly connected to the hook structure of a crane hook. Sliding grooves are formed inside the lifting ring and the sliding lifting lugs, and these sliding grooves are fitted on the outer side of the balance beam.
[0009] Furthermore, the top of the sliding lug is longitudinally provided with a groove, and the hook rod is disposed in the groove.
[0010] Furthermore, the upper and lower ends of the limiting block are provided with trapezoidal structures, and the size of the limiting block is larger than the inner diameter of the slide groove.
[0011] Furthermore, both the upper and lower ends of the grooves of the lifting ring and the sliding lug are fixed with protrusions, and the protrusion structure is adapted to the size of the groove structure in the middle of the balance beam.
[0012] Furthermore, the top of the rolling mill stand has multiple sets of threaded hole structures, and the flange is fixedly connected to the threaded holes on the rolling mill stand by bolt structure.
[0013] Furthermore, a circular slot structure is provided in the middle of the frame lifting lug.
[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 features a unified structure formed by two sets of plate-beam type balance beams, fixed by limiting blocks on both sides, thus improving structural strength. Adjustable lifting lugs are installed on both sides of the balance beams, allowing users to move the balance beams via the sliding lifting lugs through the outer crane hook structure. This offers three advantages: First, during movement, the stress position (center of gravity) of the balance beams and the bottom mill frame can be adjusted, improving bottom stability and effectively increasing lifting weight. Second, by adjusting the distance between the two, mill frame structures of different sizes can be lifted, freeing up space at the bottom of the central lifting ring structure for horizontal or vertical lifting of the mill frame structure. Third, the symmetrical arrangement of two sets of sliding lifting lugs provides a more stable lifting of the mill frame structure compared to existing structures, solving the problem of insufficient lifting capacity of a single crane during mill installation.
[0017] In this utility model, through the set connection component structure, the user can pre-fix the flange structure to the rolling mill frame structure, and then connect and fix the two with bolts. After that, the frame lifting lug structure is docked with the middle groove. Finally, the pin structure passes through the docking groove and the frame lifting lug structure for through hoisting, forming a combined structure. The sliding lifting lug structure on both sides can move stably in the balance beam through its protrusion structure, which can avoid the sliding lifting lug from shaking and deviating. The limit block structure on both sides can prevent the sliding lifting lug structure from sliding out. 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 one of the structural exploded views of this utility model;
[0023] Figure 5 This is the second exploded view of the structure of this utility model;
[0024] Figure 6 This is a schematic diagram of the adjustable lifting lug assembly and the crane hook in this utility model.
[0025] The labels in the diagram represent: 1. Balance beam; 2. Lifting ring; 21. Intermediate groove; 22. Connecting groove; 3. Adjustable lifting lug assembly; 31. Sliding lifting lug; 32. Hook rod; 33. Protrusion; 34. Slide groove; 4. Limiting block; 5. Rolling mill stand; 6. Connecting assembly; 61. Flange; 62. Stand lifting lug; 63. Pin; 7. Overhead crane hook. 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: An adjustable rolling mill stand hoisting balance beam, see attached diagram. Figure 1 -Attached Figure 6The system includes a balance beam 1, which is a two-plate beam structure, fixedly connected on both sides by limiting blocks 4. Adjustable lifting lugs 3 are fitted on the outer sides of both ends of the balance beam 1. A lifting ring 2 is fitted in the middle of the balance beam 1. A central groove 21 is formed at the bottom end of the lifting ring 2. Connecting grooves 22 are formed on both sides of the central groove 21. A connecting component 6 is installed within the connecting groove 22. A rolling mill frame 5 is fixed to the bottom end of the connecting component 6. The connecting assembly 6 includes a flange 61 fixed to the top of the rolling mill stand 5, a stand lifting lug 62 fixed to the top of the flange 61, and a pin 63 sleeved in the middle of the stand lifting lug 62 and the mating groove 22. The adjustable lifting lug assemblies 3 on both sides include sliding lifting lugs 31 and hook rods 32 set at the top of the sliding lifting lugs 31. The tops of the hook rods 32 on both sides are fixedly connected to the hook structure of the crane hook 7. The lifting ring 2 and the sliding lifting lug 31 are both provided with sliding grooves 34 inside. The chute 34 is fitted onto the outside of the balance beam 1. By setting two sets of plate beam-type balance beam 1 structures and fixing them with limit blocks 4 on both sides, a unified structure is formed, improving structural strength. Adjustable lifting lug assemblies 3 structures with adjustable positions are set on both sides of the balance beam 1. Users can move the balance beam 1 by sliding the lifting lugs 31 structures through the crane hook 7 structure on the outside. There are three advantages: First, during the movement, the stress position (center of gravity position) of the balance beam 1 and the bottom mill frame 5 can be adjusted, improving the stability of the bottom end during lifting. Second, by adjusting the distance between the two, mill frame 5 structures of different sizes can be lifted, freeing up space at the bottom of the middle lifting ring 2 structure, which is convenient for horizontal or vertical lifting of the mill frame 5 structure. Third, by symmetrically setting two sets of sliding lifting lugs 31 structures, the mill frame 5 structure can be lifted more stably than the existing structure, solving the problem of insufficient lifting capacity of a single crane for mill installation.
[0029] The top of the sliding lug 31 has a groove in the longitudinal direction, and the hook rod 32 is set in the groove; the upper and lower ends of the limiting block 4 are both provided with trapezoidal structures, and the size of the limiting block 4 is larger than the inner diameter of the sliding groove 34.
[0030] Both the upper and lower ends of the groove 34 of the lifting ring 2 and the sliding lug 31 are fixed with protrusions 33, the structure of the protrusions 33 being adapted to the dimensions of the groove structure in the middle of the balance beam 1; the top of the mill stand 5 has multiple sets of threaded holes, and the flange 61 is fixedly connected to the threaded holes on the mill stand 5 by bolts; the middle of the stand lifting lug 62 has a circular groove; in this utility model, through the provided connecting component 6 structure, the user can connect to the mill through the flange 61 structure. The machine frame 5 structure is pre-fixed and connected by bolts. Then, the machine frame lifting lug 62 structure is docked with the middle groove 21. Finally, the pin shaft 63 structure passes through the docking groove 22 and the machine frame lifting lug 62 structure for hoisting, forming a combined structure. The sliding lifting lug 31 structure on both sides can move stably within the balance beam 1 through its protrusion 33 structure, which can prevent the sliding lifting lug 31 from shaking or shifting. The limit block 4 structure on both sides can prevent the sliding lifting lug 31 structure from sliding out.
[0031] 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. An adjustable rolling mill stand hoisting balance beam, characterized in that, The system includes a balance beam (1), which is a two-plate beam structure. The two sides are fixedly connected by limiting blocks (4). Adjustable lifting lugs (3) are fitted on the outer sides of both ends of the balance beam (1). A lifting ring (2) is fitted in the middle of the balance beam (1). A central groove (21) is opened at the bottom end of the lifting ring (2). A connecting groove (22) is opened through both sides of the central groove (21) at the bottom end of the lifting ring (2). A connecting component (6) is provided in the connecting groove (22). A rolling mill frame (5) is fixed at the bottom end of the connecting component (6). The connecting component (6) includes a fixed... The flange (61) is fixed at the top of the mill stand (5), the stand lifting lug (62) is fixed at the top of the flange (61), and the pin (63) is sleeved in the middle of the stand lifting lug (62) and the docking groove (22). The adjustable lifting lug assembly (3) on both sides includes a sliding lifting lug (31) and a hook rod (32) set at the top of the sliding lifting lug (31). The top of the hook rod (32) on both sides is fixedly connected to the hook structure of the crane hook (7). The lifting ring (2) and the sliding lifting lug (31) are both provided with a sliding groove (34). The sliding groove (34) is sleeved on the outside of the balance beam (1).
2. The adjustable rolling mill stand hoisting balance beam according to claim 1, characterized in that, The top of the sliding lug (31) has a groove in the longitudinal direction, and the hook (32) is set in the groove.
3. The adjustable rolling mill stand hoisting balance beam according to claim 1, characterized in that, The upper and lower ends of the limiting block (4) are provided with trapezoidal structures, and the size of the limiting block (4) is larger than the inner diameter of the slide groove (34).
4. The adjustable rolling mill stand hoisting balance beam according to claim 1, characterized in that, The upper and lower ends of the sliding groove (34) of the lifting ring (2) and the sliding lug (31) are both fixed with protrusions (33), and the structure of the protrusions (33) is adapted to the size of the middle groove structure of the balance beam (1).
5. The adjustable rolling mill stand hoisting balance beam according to claim 4, characterized in that, The top of the mill stand (5) has multiple sets of threaded holes, and the flange (61) is fixedly connected to the threaded holes on the mill stand (5) by bolts.
6. The adjustable rolling mill stand hoisting balance beam according to claim 1, characterized in that, The frame lifting lug (62) has a circular slot structure in the middle.