Multifunctional balance beam lifting hook structure

Abstract

The utility model provides a multifunctional balance beam lifting hook structure which comprises a balance beam, a lifting hook support frame, a lifting hook I, a lifting hook cross beam and a rolling bearing, the upper end of the lifting hook supporting frame is installed on the balance beam, the lower end of the lifting hook supporting frame is connected with the lifting hook I through the lifting hook cross beam, and the top of the lifting hook I is rotationally installed on the lifting hook cross beam through the rolling bearing. The balance beam and the lifting hook can be used in large-scale offshore lifting, the problems that a single hook is small in lifting weight, the deflection angle of the lifting hook exceeds the limit, and the lifting hook is difficult to take off are solved, manufacturing and connecting are relatively simple, the balance beam and the lifting hook can be connected into a combined body to be used and can also be disassembled to be independently used, and disassembling, assembling, transporting and using are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of offshore hoisting, and in particular to a multifunctional balance beam hook structure. Background Art

[0002] In recent years, marine engineering and offshore wind power projects have been developing towards large-scale, and the weight of the objects being hoisted is getting heavier. The single hook lifting capacity of the floating crane is limited, and double hooks or even more hooks are needed to increase the lifting capacity. However, the allowable deflection angle of the hook of the floating crane is limited. Exceeding the allowable deflection angle can easily cause the hook luffing wire to come off the pulley block, and in the double hook lifting, the hook deflection angle is often large. By introducing a balance beam under the double hook, the double hook lifting weight can be transferred to the lowered object, and the lower end of the balance beam has no pulley block and luffing wire, so the lifting rope allows a large deflection angle. When the lifting point spacing is greatly different from the double hook spacing, and the object can be lifted in place at one time, it is more convenient to use a double hook plus a balance beam.

[0003] Compared with traditional offshore lifting, heavy objects to be lifted in offshore wind power projects may be repeatedly lifted. For example, large single pile foundations use super-large hydraulic pile hammers with an energy of more than 3500kJ, and the hammer weight exceeds 700t. Considering the span factor, lifting coefficient and pile sliding force, the floating crane needs to use double hooks to connect the balance beam to ensure that the lifting force meets the requirements. The hydraulic pile hammer is put back on the deck of the construction ship after a single pile is sunk into place, but it needs to be lifted again for use when constructing the next single pile, which leads to frequent hooking and unhooking. The lifting ears below the balance beam are connected to the lifting wire with large shackles or pins, and it is very difficult to unhook the hook in the air. If the length of the lifting wire is extended to make it fall on the deck to operate the hook and unhook, the floating crane's lifting capacity will be insufficient.

[0004] In summary, how to select a reasonable and simple form to reduce the difficulty of hooking and unhooking operations, improve construction efficiency, and achieve large lifting capacity and reduced lifting height requirements is a research issue that needs to be solved urgently. Utility Model Content

[0005] In response to the above-mentioned technical problems of increasing the lifting capacity, reducing the difficulty of hook detachment operation, and reducing the lifting height requirement, a multifunctional balance beam hook structure is provided, which is simple to manufacture and connect, and the balance beam and the hook are connected as a combination for use, combining the advantages of the balance beam and the hook, and solving the problems of small lifting weight with a single hook and difficulty in hook detachment operation. At the same time, the hook of the system does not have the problem of excessive deflection angle, and the lifting wire can be directly detached and hung in the air, reducing the lifting height requirement; the balance beam hook structure is easy to disassemble, assemble, transport and use, has a wide range of applications, and is economical.

[0006] The technical means adopted by the utility model are as follows:

[0007] A multifunctional balance beam hook structure, comprising a balance beam, a hook support frame, a hook I, a hook cross beam and a rolling bearing;

[0008] The upper end of the hook support frame is installed on the balance beam, and the lower end is connected to the hook I through the hook cross beam. The top of the hook I is rotatably installed on the hook cross beam through the rolling bearing.

[0009] Furthermore, the hook support frame includes two parts symmetrically arranged on the front and rear sides of the balance beam; the two parts of the hook support frame are both provided with mounting holes, and the two ends of the hook beam are respectively extended into the mounting holes of the two parts of the hook support frame, and a connecting sealing plate is provided on the outside of the mounting hole, and bolt holes are respectively provided at both ends of the hook beam, and the hook beam is connected to the connecting sealing plate by passing the connecting bolts through the through holes on the connecting sealing plate and installing them to the bolt holes.

[0010] Furthermore, twelve bolt holes are provided at one end of the hook crossbeam; and the hook support frame is provided with two connecting sealing plates and twenty-four groups of connecting bolts.

[0011] Furthermore, the upper end of the hook support frame is detachably connected to the balance beam via two connecting pins.

[0012] Furthermore, the two parts of the hook support frame are respectively provided with two pin holes for installing the two connecting pins; the middle part of the lower end of the balance beam is provided with two lifting ears for installing the two connecting pins; the outer diameter of the connecting pin matches the inner diameter of the pin hole.

[0013] Furthermore, the spacing between the two pin holes at the upper end of each part of the hook support frame is 2.0m, which is equal to the spacing between the two lifting ears in the middle of the lower end of the balance beam.

[0014] Furthermore, the rolling bearing is rotatably mounted on the hook beam in a vertical state, and the rolling bearing can drive the hook I to achieve 360° rotation around a vertical rotation axis.

[0015] Furthermore, it also includes a locking hook chain arranged at the lower end of the hook I. After the lifting wire is hung on the hook I, the locking hook chain is closed to prevent the lifting wire from slipping.

[0016] Furthermore, the balance beam and the hook support frame are made of EH36, the connecting pin, the hook I, the hook beam and the rolling bearing are made of 34CrNi1Mo, and the lock hook chain is made of Q235B.

[0017] Compared with the prior art, the utility model has the following advantages:

[0018] 1. The utility model provides a multifunctional balance beam hook structure, wherein the spacing between the pin shaft holes at the upper end of the hook support frame matches the spacing between the inner lifting ears at the lower end of the existing balance beam, and the balance beam can be used directly, and only the hook part I needs to be newly constructed, thereby reducing the construction cost.

[0019] 2. The utility model provides a multifunctional balance beam hook structure, in which the hook support frame and the balance beam are connected by a connecting pin, the hook support frame and the hook I are connected by a hook crossbeam, and the two ends are fastened with connecting bolts and connecting sealing plates, so that the balance beam and the hook I are connected as a combined system, without welding workload, and the installation and connection work are convenient and flexible.

[0020] 3. The utility model provides a multifunctional balance beam hook structure, in which the hook I at the lower end can use the rigging hook of the floating crane to connect the guide rope, and the lifting wire auxiliary hook can be lifted. When removing the hook, the balance beam position can be directly lowered to complete the unhooking by gravity, which is easy to operate and greatly improves the working efficiency.

[0021] 4. The multifunctional balance beam hook structure provided by the utility model is not limited by the hook deflection angle and can rotate 360°. It is easy to remove the hook and can be used efficiently with a shorter lifting wire, reducing the demand for the floating crane to lift high.

[0022] 5. The multifunctional balance beam hook structure provided by the utility model is convenient for disassembly, assembly, transportation and use, and has a wide range of applications. The balance beam and the hook can be connected as a combination for use, or the balance beam and the hook can be disassembled and used separately. It has a wide range of uses in the construction of single pile foundations and booster stations in the offshore wind power industry, and the lifting of large modules in the field of marine engineering.

[0023] Based on the above reasons, the utility model can be widely promoted in the field of large-scale offshore lifting in industries such as offshore wind power and marine engineering. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0025] Figure 1 It is a schematic diagram of the structure of the multifunctional balance beam hook of the utility model.

[0026] Figure 2 It is a main schematic diagram of the hook part in the utility model.

[0027] Figure 3 It is a side view schematic diagram of the hook part in the utility model.

[0028] Figure 4 It is a structural schematic diagram of a hook support frame in the utility model.

[0029] Figure 5 The utility model is a schematic diagram of the connection sealing plate and the connection bolt structure of the hook support frame.

[0030] Figure 6 It is a schematic diagram of the use of the multifunctional balance beam hook structure of the utility model.

[0031] In the figure: 1. Balance beam; 2. Connecting pin; 3. Hook support frame; 4. Hook I; 5. Hook crossbeam; 6. Rolling bearing; 7. Hook chain; 8. Connecting cover plate; 9. Bolt hole; 10. Connecting bolt; 11. Floating crane; 12. Sea level; 13. Seabed mud surface; 14. Hook II; 15. Hook wire; 16. Multifunctional balance beam hook structure; 17. Lifting wire; 18. Hydraulic pile hammer; 19. Large single pile; 20. Pile stabilization platform. DETAILED DESCRIPTION

[0032] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0033] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0034] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0035] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, the numerical expressions and numerical values ​​do not limit the scope of the utility model. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0036] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present utility model: the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0037] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0038] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0039] Example 1

[0040] like Figure 1-5 As shown, the utility model provides a multifunctional balance beam hook structure, including a balance beam 1, a hook support frame 3, a hook I 4, a hook cross beam 5 and a rolling bearing 6;

[0041] The upper end of the hook support frame 3 is installed on the balance beam 1, and the lower end is connected to the hook I4 through the hook cross beam 5. The hook support frame 3 connects the balance beam 1 and the hook I4 into a combined structure, and the top of the hook I4 is rotatably installed on the hook cross beam 5 through the rolling bearing 6.

[0042] Furthermore, the hook support frame 3 includes two parts symmetrically arranged on the front and rear sides of the balance beam 1; the two parts of the hook support frame 3 are both provided with mounting holes, and the two ends of the hook beam 5 are respectively extended into the mounting holes of the two parts of the hook support frame 3, and a connecting sealing plate 8 is provided on the outside of the mounting hole, and bolt holes 9 are respectively provided at both ends of the hook beam 5. The hook beam 5 is connected to the connecting sealing plate 8 by passing the connecting bolt 10 through the through hole on the connecting sealing plate 8 and installing it to the bolt hole 9, so that the hook beam 5 is connected to the connecting sealing plate 8, and then the hook beam 5 is installed to the hook support frame 3.

[0043] Furthermore, twelve bolt holes 9 are provided at one end of the hook cross beam 5 ; and the hook support frame 3 is provided with two connecting sealing plates 8 and twenty-four groups of connecting bolts 10 .

[0044] Furthermore, the upper end of the hook support frame 3 is detachably connected to the balance beam 1 via two connecting pins 2 .

[0045] Furthermore, the two parts of the hook support frame 3 are respectively provided with two pin holes for installing the two connecting pins 2; the middle part of the lower end of the balance beam 1 is provided with two lifting ears for installing the two connecting pins 2; the connecting pins 2 are connected to the hook support frame 3 and the balance beam 1 by being installed in the pin holes and the lifting ears at corresponding positions; the outer diameter of the connecting pin 2 matches the inner diameter of the pin hole.

[0046] Furthermore, the spacing between the two pin holes at the upper end of each part of the hook support frame 3 is 2.0m, which is equal to the spacing between the two lifting ears at the middle part of the lower end of the balance beam 1.

[0047] Furthermore, the rolling bearing 6 is rotatably mounted on the hook beam 5 in a vertical state, and the rolling bearing 6 can drive the hook I 4 to achieve 360° rotation around a vertical rotation axis.

[0048] Furthermore, it also includes a lock hook chain 7 arranged at the lower end of the hook Ⅰ4. After the lifting wire is hung on the hook Ⅰ4, the lock hook chain 7 is closed to prevent the lifting wire from slipping.

[0049] Furthermore, the balance beam 1 and the hook support frame 3 are made of EH36, the connecting pin 2, the hook Ⅰ 4, the hook beam 5 and the rolling bearing 6 are made of 34CrNi1Mo, and the lock hook chain 7 is made of Q235B.

[0050] Furthermore, the balance beam 1 is a 1800t balance beam, and the hook Ⅰ4 is a 1200t hook.

[0051] The usage status of this device is as follows:

[0052] After the various parts of the multifunctional balance beam hook structure are connected and assembled, Figure 1 , Figure 6 As shown, taking the construction of a single pile foundation for an offshore wind power project as an example, the upper end ear of the multifunctional balance beam hook structure 16 is connected to the two hooks II 14 of the floating crane 11 through the hook wire 15, and the hook I4 at the lower end of the multifunctional balance beam hook structure 16 is directly connected to the lifting wire 17, closing the lock hook chain 7;

[0053] The lower end of the hoisting wire 17 is connected to a hydraulic pile hammer 18. The floating crane 11 adjusts the ship position and puts the hydraulic pile hammer 18 on the top of the large single pile 19 to drive the pile. During the piling process, the verticality of the large single pile 19 is controlled by the pile stabilizing platform 20.

[0054] During the hooking operation, the rigging hook of the floating crane 11 is connected to the guide rope, the hook I4 is rotated, the guide rope lifts the lifting wire 17, the lifting wire 17 slides along the guide rope to the hook teeth of the hook I4, and then the guide rope is removed, the lock hook chain 7 is closed, and the hooking is completed;

[0055] During the hook removal operation, the lock hook chain 7 is opened, the floating crane 11 lowers the height of the hook II 14, the lifting wire 17 gradually relaxes, and the height of the hook II 14 continues to be lowered, and the lifting wire 17 is disengaged from the hook teeth of the hook I 4, completing the hook removal.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A multifunctional balance beam hook structure, characterized in that: It includes a balance beam, a hook support frame, a hook I, a hook crossbeam and a rolling bearing; The upper end of the hook support frame is installed on the balance beam, and the lower end is connected to the hook I through the hook cross beam. The top of the hook I is rotatably installed on the hook cross beam through the rolling bearing.

2. The multifunctional balance beam hook structure according to claim 1 is characterized in that: The hook support frame includes two parts symmetrically arranged on the front and rear sides of the balance beam; the two parts of the hook support frame are both provided with mounting holes, and the two ends of the hook beam are respectively extended into the mounting holes of the two parts of the hook support frame, and a connecting sealing plate is provided on the outside of the mounting hole, and bolt holes are respectively provided at both ends of the hook beam, and the hook beam is connected to the connecting sealing plate by passing the connecting bolts through the through holes on the connecting sealing plate and installing them to the bolt holes.

3. The multifunctional balance beam hook structure according to claim 2 is characterized in that: One end of the hook crossbeam is provided with twelve bolt holes; the hook support frame is provided with two connecting sealing plates and twenty-four groups of connecting bolts.

4. The multifunctional balance beam hook structure according to claim 1, characterized in that: The upper end of the hook support frame is detachably connected to the balance beam through two connecting pins.

5. The multifunctional balance beam hook structure according to claim 4 is characterized in that: The two parts of the hook support frame are respectively provided with two pin holes for installing the two connecting pins; the middle part of the lower end of the balance beam is provided with two lifting ears for installing the two connecting pins; the outer diameter of the connecting pin matches the inner diameter of the pin hole.

6. The multifunctional balance beam hook structure according to claim 5, characterized in that: The spacing between the two pin holes at the upper end of each part of the hook support frame is 2.0m, which is equal to the spacing between the two lifting ears in the middle of the lower end of the balance beam.

7. The multifunctional balance beam hook structure according to claim 1, characterized in that: The rolling bearing is rotatably mounted on the hook beam in a vertical state, and the rolling bearing can drive the hook I to rotate 360° around a vertical rotation axis.

8. The multifunctional balance beam hook structure according to claim 4, characterized in that: It also includes a locking hook chain arranged at the lower end of the hook I. After the lifting wire is hung on the hook I, the locking hook chain is closed to prevent the lifting wire from slipping.

9. The multifunctional balance beam hook structure according to claim 8, characterized in that: The balance beam and the hook support frame are made of EH36, the connecting pin, the hook I, the hook crossbeam and the rolling bearing are made of 34CrNi1Mo, and the lock hook chain is made of Q235B.

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