Lifting hook beam tool

Abstract

The invention discloses a lifting hook beam tool and relates to the technical field of lifting equipment, the lifting hook beam tool comprises a beam and a lifting hook assembly, the beam can be installed on a beam plate hook of a bridge crane, an adjusting groove is formed in the side wall of the beam, the lifting hook assembly comprises a lifting hook shaft, an installation base and a lifting hook, and the lifting hook shaft is in sliding fit with the adjusting groove; according to the lifting hook cross beam tool, the problem about lifting of oil cylinders with different eccentric sizes at double treatment positions is solved, accurate lifting of the oil cylinders can be completed without dismounting a fixed type multifunctional top gun, and the lifting hook cross beam tool is simple in structure, convenient to use and high in practicability. And the preparation efficiency before operation is improved.

Description

Technical Field

[0001] This application relates to the field of hoisting equipment technology, and in particular to a hook beam tool. Background Technology

[0002] The multi-functional top lance system in the No. 1 RH refining unit of the steel plant is mainly used to achieve standard heating / slag formation and oxygen blowing decarburization and chemical heating functions for COG / O2 burners. This multi-functional top lance system adopts a single-station fixed installation structure, meaning one top lance is fixed above a single processing position. The advantages are: simple control, low failure rate, and low investment. The disadvantage is: because the top lance cannot be moved, its centerline coincides with the centerline of the ladle lifting cylinder below. Therefore, when replacing the ladle lifting cylinder, there are two options: 1. First remove the top lance, then use a single hook for lifting. 2. Use the crossbeam hook of a bridge crane in conjunction with a special hook beam for lifting the cylinder. However, the centerline of the ladle lifting cylinder is not exactly in the center of the processing position; there is a certain deviation from the positions of the plant buildings on both sides of the processing position, and the deviation positions of the two processing positions are different. This leads to problems with skewed pulling when using traditional beam hooks to lift hydraulic cylinders, resulting in inconsistent centering and making cylinder installation difficult. Even if an eccentric hook is made, it may satisfy one handling position but not another. Summary of the Invention

[0003] The purpose of this application is to provide a hook beam tool that can solve the problem of lifting hydraulic cylinders with different eccentric dimensions in two processing positions without removing the top gun.

[0004] To achieve the above objectives, this application provides a hook beam tool, including: a beam and a hook assembly;

[0005] The crossbeam can be installed on the crossbeam hook of the bridge crane, and the side wall of the crossbeam is provided with an adjustment groove.

[0006] The hook assembly includes a hook shaft, a mounting base, and a hook. The hook shaft is slidably fitted into the adjustment groove and can move relative to the crossbeam along the adjustment groove. One end of the mounting base is connected to the hook shaft, and the other end is connected to the hook.

[0007] In some embodiments, the bottom of the adjustment groove is further provided with a plurality of spaced self-locking grooves, the self-locking grooves being arc-shaped grooves, the self-locking grooves being able to fit against the hook shaft.

[0008] In some embodiments, the length of the adjustment groove is less than half the length of the crossbeam, and the distance between two adjacent self-locking grooves is greater than the diameter of the self-locking groove.

[0009] In some embodiments, the mounting base includes a first mounting plate and a second mounting plate, the first mounting plate and the second mounting plate being spaced apart, the hook shaft being rotatably connected to the top ends of the first mounting plate and the second mounting plate respectively, and the hook being located between the first mounting plate and the second mounting plate.

[0010] In some embodiments, the hook is rotatably connected to the first mounting plate and the second mounting plate, and the hook is rotatable relative to the mounting base.

[0011] In some embodiments, the first mounting plate and the second mounting plate are spaced apart from the crossbeam, and the distance between the first mounting plate and the second mounting plate and the crossbeam is between 5 and 10 centimeters.

[0012] In some embodiments, the crossbeam has a square hollow structure.

[0013] In some embodiments, the top of the crossbeam is provided with a plurality of spaced-apart lugs.

[0014] In some embodiments, the two ends of the crossbeam are provided with extensions, the extensions being cylindrical structures, and the extensions being able to be hooked onto the crossbeam hooks of the bridge crane.

[0015] In some embodiments, the end of the extension has an outer edge, the diameter of which is larger than the diameter of the extension.

[0016] Compared to the aforementioned background technology, the hook beam tool provided in this application includes a beam and a hook assembly. The beam can be installed on the beam hook of a bridge crane. The side wall of the beam is provided with an adjustment groove. The hook assembly includes a hook shaft, a mounting base, and a hook. The hook shaft is slidably fitted into the adjustment groove and can move relative to the beam along the adjustment groove. One end of the mounting base is connected to the hook shaft, and the other end is connected to the hook. The beam is lifted by the bridge crane and placed above the load to be lifted. The position of the hook shaft in the adjustment groove is adjusted to ensure that the line connecting the hook shaft and the center of the load is vertical. Then, the hook lifts the load and transports it. When lifting another load, the position of the hook shaft in the adjustment groove is adjusted so that the line connecting the hook shaft and the center of the load is vertical. Then, the hook lifts the load and transports it. By adjusting the position of the hook shaft within the adjustment groove, it is ensured that the line connecting the center of gravity of the load and the center of the hook shaft is vertically aligned during hoisting, guaranteeing center of gravity coincidence and preventing skewed pulling or dragging. This ensures the safety of the hoisted object and improves installation accuracy. The hook beam tool of this application solves the problem of hoisting hydraulic cylinders with different eccentric dimensions in dual-processing positions. Precise hoisting of the hydraulic cylinder can be achieved without dismantling the fixed multi-functional top gun, significantly reducing pre-operation preparation procedures. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application 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 embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the hook beam tool according to an embodiment of this application;

[0019] Figure 2 This is a side view of the hook beam tool according to an embodiment of this application.

[0020] in:

[0021] 1. Crossbeam; 11. Adjustment groove; 12. Self-locking groove; 2. Hook shaft; 3. Mounting base; 31. First mounting plate; 32. Second mounting plate; 4. Hook; 5. Lifting lug; 6. Extension; 7. Outer edge. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0023] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0024] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] like Figure 1 and Figure 2As shown, the hook beam tool provided in this application embodiment includes a beam 1 and a hook assembly. The beam 1 can be installed on the beam hook of a bridge crane. The side wall of the beam 1 is provided with an adjustment groove 11. The hook assembly includes a hook shaft 2, a mounting seat 3 and a hook 4. The hook shaft 2 is slidably fitted in the adjustment groove 11 and can move relative to the beam 1 along the adjustment groove 11. One end of the mounting seat 3 is connected to the hook shaft 2 and the other end is connected to the hook 4.

[0026] Understandably, a bridge crane is used to lift the crossbeam 1, which is then positioned above the object to be lifted. The hook shaft 2 is adjusted in the adjustment groove 11 to ensure that the line connecting the hook shaft 2 and the center of the object is vertical. The hook 4 then lifts and transports the object. When lifting another object, the hook shaft 2 is adjusted in the adjustment groove 11 to ensure that the line connecting the hook shaft 2 and the center of the object is vertical. The hook 4 then lifts and transports the object. By adjusting the position of the hook shaft 2 within the adjustment groove 11, it is ensured that the line connecting the center of gravity of the object and the center of the hook shaft 2 is vertical during lifting, guaranteeing that the centers of gravity coincide and preventing skewed pulling or dragging. This ensures the safety of the lifted object and improves installation accuracy.

[0027] In some embodiments, the bottom of the adjustment groove 11 is also provided with a plurality of spaced self-locking grooves 12, which are arc-shaped grooves and can fit with the hook shaft 2.

[0028] Specifically, in this embodiment, there are three self-locking grooves 12. The three self-locking grooves 12 are located at both ends and the center of the adjustment groove 11, respectively. The three self-locking grooves 12 have the same structure and are all semi-circular grooves. The three self-locking grooves 12 are evenly spaced at the bottom of the adjustment groove 11. The diameter of the self-locking groove 12 is the same as the diameter of the hook shaft 2. When the hook shaft 2 moves to the position of the self-locking groove 12, the hook shaft 2 can enter the self-locking groove 12 under the action of gravity. The arc-shaped groove wall of the self-locking groove 12 can fit against the side wall of the hook shaft 2.

[0029] It is understandable that the self-locking groove 12 is designed to automatically lock the hook shaft 2 after it moves to the target position by the weight of the load and the hook assembly itself, thereby preventing the hook shaft 2 from moving laterally along the adjustment groove 11 during the hoisting process. This avoids the risk of skewed pulling and tilting of the load caused by the offset of the lifting point, and ensures the safety of the hoisting operation.

[0030] Specifically, a locking structure can be provided at the top of the self-locking groove 12. The locking structure can be a positioning pin, and locking holes are provided at the top of both side walls of the self-locking groove 12. When the hook shaft 12 is located in the self-locking groove 12, the positioning pin passes through the locking hole of one side wall of the self-locking groove 12 and extends into the locking hole of the other side wall of the self-locking groove 12. The positioning pin abuts against the top of the hook shaft 2, and the positioning pin can fix the hook shaft 2 in the self-locking groove 12, preventing the hook shaft 2 from falling out of the self-locking groove 12.

[0031] In some embodiments, the length of the adjustment groove 11 is less than half the length of the crossbeam 1, and the distance between two adjacent self-locking grooves 12 is greater than the diameter of the self-locking groove 12.

[0032] It is understood that the adjustment groove 11 is a long, narrow groove extending along the length of the crossbeam 1. The length of the adjustment groove 11 is less than half the length of the crossbeam 1, thus ensuring the structural strength of the crossbeam 1 and preventing the load-bearing capacity of the crossbeam 1 from being weakened due to excessive length of the adjustment groove 11. The distance between two adjacent self-locking grooves 12 is greater than the diameter of the self-locking groove 12. This size design ensures that there is sufficient solid structure between adjacent self-locking grooves 12 to avoid stress concentration, while ensuring that the adjustment distance of each locking position can adapt to the cylinder centerline offset requirements of different processing positions on site. In some other embodiments, the number of self-locking grooves 12 can be flexibly increased according to the number of hoisting positions and the offset size on site. For example, according to the cylinder offset size of the dual processing positions of the RH refining unit, dedicated self-locking grooves corresponding to the two positions can be set, while reserving 1-2 spare self-locking grooves to adapt to the hoisting requirements of heavy objects of different weights and sizes. All grooves have rounded edges to avoid stress concentration caused by sharp corner structures and improve the fatigue life and safety of the crossbeam 1.

[0033] In some embodiments, the mounting base 3 includes a first mounting plate 31 and a second mounting plate 32, which are spaced apart. The hook shaft 2 is rotatably connected to the top ends of the first mounting plate 31 and the second mounting plate 32, respectively, and the hook 4 is located between the first mounting plate 31 and the second mounting plate 32.

[0034] Understandably, the mounting base 3 consists of a first mounting plate 31 and a second mounting plate 32 to prevent the mounting base 3 from interfering with the movement of the hook shaft 2 when it moves along the adjustment groove 11. The mounting base 3 can also rotate around the lifting shaft to compensate for slight angular deviations that occur during the lifting process.

[0035] Based on the above embodiment, the hook 4 is rotatably connected to the first mounting plate 31 and the second mounting plate 32, and the hook 4 can rotate relative to the mounting base 3.

[0036] Specifically, a rotating shaft is provided between the first mounting plate 31 and the second mounting plate 32. The two ends of the rotating shaft are rotatably connected to the bottom of the first mounting plate 31 and the second mounting plate 32. The hook 4 is rotatably connected to the rotating shaft and can rotate 360 ​​degrees.

[0037] Understandably, the rotation of the shaft allows the hook 4 to be retracted between the first mounting section and the second mounting plate 32, reducing the space occupied by the equipment and facilitating the transfer of hook beam tools. The hook 4 can rotate 360 ​​degrees to adapt to lifting points of objects facing different directions, and can be hooked without additional adjustment of the beam 1 angle, greatly improving the convenience of on-site operations.

[0038] In some embodiments, the first mounting plate 31 and the second mounting plate 32 are both spaced apart from the crossbeam 1, and the distance between the first mounting plate 31 and the second mounting plate 32 and the crossbeam 1 is between 5 and 10 centimeters.

[0039] Understandably, this gap design ensures that the mounting base 3 will not rub against the crossbeam 1 when sliding with the hook shaft 2, guaranteeing a smooth and uninterrupted lateral movement of the hook 4. It also provides sufficient vertical displacement space for the hook shaft 2 to fall into the self-locking groove 12, ensuring the reliable implementation of the self-locking function. Simultaneously, the openings and cuts on the surfaces of the first mounting plate 31 and the second mounting plate 32 are rounded to further avoid stress concentration. The structural dimensions of the mounting base 3 must be rigorously calculated based on the weight of the load to prevent structural deformation or overturning during hoisting.

[0040] Specifically, the hook shaft 2 is provided with bushings at both ends. The bushings can be wear-resistant bushings. The two bushings are located between the first mounting plate 31 and the crossbeam 1 and the second mounting plate 32 and the crossbeam 1, respectively. One end of the bushing abuts against the first mounting plate 31 or the second mounting plate 32, and the other end abuts against the crossbeam 1.

[0041] It is understandable that by setting the bushing, the hook shaft 2 is axially limited, preventing the hook shaft 2 from swaying along its axis during the hoisting process, thereby improving the stability of the hoisting. In addition, the end face of the bushing is a smooth plane, which can reduce the sliding friction between the bushing and the crossbeam 1 and the first mounting plate 31 or the second mounting plate 32, thereby reducing noise and wear.

[0042] In some embodiments, the crossbeam 1 is a square hollow structure.

[0043] Understandably, this structure reduces the weight of the crossbeam 1 itself while ensuring the overall bending and torsional strength of the crossbeam 1, making it easier for the crane to lift and transfer it on site. At the same time, it reduces the occupation of the crane's rated lifting capacity and increases the safety margin for lifting heavy objects.

[0044] In other embodiments, the crossbeam 1 can also be an I-beam or H-beam profile structure, which simplifies processing and reduces manufacturing costs while reducing weight.

[0045] In some embodiments, the top of the crossbeam 1 is provided with a plurality of spaced-apart lugs 5.

[0046] Specifically, multiple lifting lugs 5 are symmetrically arranged along the length of the crossbeam 1, and lifting holes are provided on the lifting lugs 5 to adapt to the lifting needs of single-hook bridge cranes, thereby expanding the applicable scenarios of this tool and improving its versatility.

[0047] In some embodiments, the two ends of the crossbeam 1 are provided with extensions 6, which are cylindrical structures and can be hooked with the crossbeam plate hooks of the bridge crane.

[0048] Understandably, the cylindrical extension 6 can perfectly fit with the crossbeam hook of the bridge crane, ensuring the stability of the connection and preventing relative sliding between the hook and the crossbeam 1.

[0049] Based on the above embodiment, the end of the extension 6 is provided with an outer edge 7, and the diameter of the outer edge 7 is larger than the diameter of the extension 6.

[0050] Understandably, the outer edge 7 can axially limit the hook of the bridge crane, preventing the hook from slipping off the extension 6, and further improving the safety performance of the lifting operation.

[0051] In some other embodiments, the hook 4 is also provided with an anti-detachment safety tongue. The anti-detachment safety tongue is elastically connected to the hook 4 via a spring. The anti-detachment safety tongue can form an openable and closable closed ring structure with the hook 4. Under normal conditions, the spring is in its natural state, and the anti-detachment safety tongue closes the hook head opening of the hook 4. By moving the anti-detachment safety tongue, the hook head opening is opened, the spring is compressed, and the lifting structure such as the lifting ring or lifting lug of the hoisted object can enter the hook cavity of the hook 4. Then the spring returns to its original position and pushes the anti-detachment safety tongue to return to its original position, so that the hook mouth of the hook 4 closes again. The anti-detachment safety tongue can prevent the lifting structure of the hoisted object from falling outward and avoid the risk of detachment.

[0052] The working process of the hook beam tool provided in this embodiment is as follows:

[0053] Before hoisting, based on the weight and dimensions of the steel ladle lifting cylinder to be replaced, perform a force check on the hook beam tool to confirm that the load-bearing capacity of the beam 1 and the hook assembly meets the hoisting requirements. Then, attach the beam hooks of the bridge crane to the extensions 6 at both ends of the beam 1, confirm that the hooks and extensions 6 are properly engaged, and ensure that the outer edge 7 is in place to prevent detachment.

[0054] Adjust the lifting point position and hoist the crossbeam 1 to the top of the ladle lifting cylinder to be replaced. Based on the offset dimension between the center line of the ladle lifting cylinder at this work position and the center of the processing position, push the hook shaft 2 to slide along the adjustment groove 11 so that the center of the hook shaft 2 is on the same vertical line as the center of gravity of the cylinder to be lifted. Release the hook shaft 2, and under its own weight and the weight of the mounting base 3 and the hook 4, the hook shaft 2 falls into the self-locking groove 12 at the corresponding position. Confirm that the hook shaft 2 is completely in contact with the groove wall of the self-locking groove 12 to complete the self-locking fixation.

[0055] During the hoisting operation, the hook 4 is attached to the special lifting point of the ladle lifting cylinder. After confirming that the attachment is secure, the crossbeam 1 is slowly lifted by the bridge crane. The crossbeam 1 drives the hook assembly to move back and forth. The hook 4 lifts the ladle lifting cylinder to be replaced, completing the hoisting, disassembly and installation of the cylinder.

[0056] In summary, the hook beam tool of this application solves the problem of lifting hydraulic cylinders with different eccentric sizes in two processing positions. It can accurately lift the hydraulic cylinder without removing the fixed multi-functional top gun, reducing the preparation procedures before operation. According to actual field application verification, after adopting this tool, the overall efficiency of the ladle lifting hydraulic cylinder replacement operation is improved by about 25%, and the equipment downtime maintenance time is shortened.

[0057] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0058] The hook beam tool provided in this application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the solution and core ideas of this application. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. A hook beam tool, characterized in that, include: A crossbeam (1) is provided on the side wall of a bridge crane and can be installed on the crossbeam plate hook of the bridge crane. The crossbeam (1) is provided with an adjustment groove (11). The hook assembly includes a hook shaft (2), a mounting base (3), and a hook (4). The hook shaft (2) is slidably fitted into the adjustment groove (11). The hook shaft (2) is movable relative to the crossbeam (1) along the adjustment groove (11). One end of the mounting base (3) is connected to the hook shaft (2), and the other end is connected to the hook (4).

2. The hook beam tool according to claim 1, characterized in that, The bottom of the adjustment groove (11) is also provided with a plurality of self-locking grooves (12) spaced apart. The self-locking grooves (12) are arc-shaped grooves and can fit with the hook shaft (2).

3. The hook beam tool according to claim 2, characterized in that, The length of the adjustment groove (11) is less than half the length of the crossbeam (1), and the distance between two adjacent self-locking grooves (12) is greater than the diameter of the self-locking groove (12).

4. The hook beam tool according to claim 1, characterized in that, The mounting base (3) includes a first mounting plate (31) and a second mounting plate (32), the first mounting plate (31) and the second mounting plate (32) are spaced apart, the hook shaft (2) is rotatably connected to the top ends of the first mounting plate (31) and the second mounting plate (32) respectively, and the hook (4) is located between the first mounting plate (31) and the second mounting plate (32).

5. The hook beam tool according to claim 4, characterized in that, The hook (4) is rotatably connected to the first mounting plate (31) and the second mounting plate (32), and the hook (4) is rotatable relative to the mounting base (3).

6. The hook beam tool according to claim 5, characterized in that, The first mounting plate (31) and the second mounting plate (32) are both distributed at intervals with the crossbeam (1), and the distance between the first mounting plate (31) and the second mounting plate (32) and the crossbeam (1) is between 5 and 10 centimeters.

7. The hook beam tool according to claim 1, characterized in that, The crossbeam (1) is a square hollow structure.

8. The hook beam tool according to claim 7, characterized in that, The top of the crossbeam (1) is provided with a plurality of spaced lugs (5).

9. The hook beam tool according to claim 8, characterized in that, The two ends of the crossbeam (1) are provided with extensions (6), which are cylindrical structures and can be hooked with the crossbeam hook of the bridge crane.

10. The hook beam tool according to claim 9, characterized in that, The end of the extension (6) is provided with an outer edge (7), the diameter of which is larger than the diameter of the extension (6).

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