A split rotating nested complete set of lifting equipment and lifting method

Abstract

The present invention provides a split rotating nested complete set of lifting equipment and a lifting method, comprising: an outer set, a reset pin and a nested lifting ring, wherein the outer set has a hollow portion inside, into which a lifting nail can be embedded during assembly, a notch is provided on the top of the outer set, the reset pin is provided in the notch, and the outer set is firmly embedded in the nested lifting ring. The present invention is light, simple, and ensures the tightness of the connection; it has a large bearing capacity and is highly applicable to embedded parts of different models; during use, the hoisted object can be subjected to uniform force, ensuring stability during demoulding and hoisting; by reliably connecting the hoisted object to the lifting machinery, safety and quality risks caused by shaking of the wind tower during the hoisting process are avoided.

Description

Technical Field

[0001] The invention relates to a sling, in particular to a split rotating nested complete sling set and a slinging method. Background Art

[0002] Prestressed concrete wind power tower is the tower pole of wind power generation, which mainly plays a supporting role in wind turbine generator sets. Wind power concrete tower is generally divided into several sections, and each section is fixed by connecting parts. The design height of the concrete straight tower used for wind turbine tower is generally less than 30 meters. For towers above 30 meters, variable diameter concrete tower is generally used, which is difficult to hoist and requires high precision.

[0003] At present, the tooling for hooking and lifting objects set on the lifting equipment of the concrete tower ring segment is usually a hook, which is connected to the object to be lifted by a lifting rope, and then the displacement of the object to be lifted is realized, such as lifting, loading and unloading, transportation, etc. However, the way in which the hook is connected to the object to be lifted by a rope cannot meet the hook lifting of all objects. For example, it is very inconvenient to manually bind and unbind the ropes for lifting large-diameter high-cylinder objects. Its shortcomings are: cumbersome operation, time-consuming, and high production cost. Moreover, for the lifting of prefabricated components, the existing lifting equipment cannot adapt well to the recess where the lifting nails are located, the firmness is unstable, and it is easy to collide with the prefabricated concrete ring segment. The lifting process may cause accidental damage to the product, affecting the lifting accuracy and the stability of the tower. Summary of the invention

[0004] One object of the present invention is to provide a split rotating nested complete set of lifting equipment and a lifting method, which can be used to adaptively tighten and lift the tower ring segments according to the actual specifications of the embedded parts in the tower ring segments during the demoulding and lifting process, so as to avoid damage to the tower ring segment notches, difficult to control lifting accuracy, damage to components, and other problems.

[0005] According to the first aspect of the present invention, the present invention provides a split rotating nested complete set of slings, comprising: an outer sleeve, a reset pin and a nested lifting ring, the outer sleeve having a hollow portion inside, into which a hanging nail can be embedded during assembly, a recess is provided at the top of the outer sleeve, the reset pin is provided in the recess, and the outer sleeve is fastened and embedded in the nested lifting ring.

[0006] Optionally, for the split rotating nested complete set of slings, the outer set is cylindrical and is assembled from a plurality of cylinders through a plurality of assembly positioning pins.

[0007] Optionally, for the split rotating nested complete set of slings, the outer set is cylindrical and is assembled from two semi-cylinders by a plurality of assembly positioning pins.

[0008] Optionally, for the split rotating nested lifting equipment set, the outer set is threadedly rotated and fastened to the nested lifting ring.

[0009] Optionally, for the split rotating nested lifting equipment set, an annular steel component is provided on the upper portion of the nested lifting ring.

[0010] Optionally, for the split rotating nested complete set of slings, the hollow portion is funnel-shaped, with a large upper space and a small lower space.

[0011] According to a second aspect of the present invention, there is provided a lifting method, comprising using the split rotating nested lifting device set as described above, and clamping the lifting nails by the split rotating nested lifting device set to lift the component to be transferred.

[0012] The present invention provides a split rotating nested complete set of lifting equipment and a lifting method, comprising: an outer set, a reset pin and a nested lifting ring, wherein the outer set has a hollow portion inside, into which a lifting nail can be embedded during assembly, a notch is provided on the top of the outer set, the reset pin is provided in the notch, and the outer set is fastened and embedded in the nested lifting ring. The advantages thereof include at least:

[0013] 1. Lightweight, simple, and ensures the tightness of the connection;

[0014] 2. Large bearing capacity and strong applicability to different types of embedded parts (i.e. hanging nails);

[0015] 3. During use, the hoisted object can be evenly stressed, ensuring stability during demoulding and hoisting;

[0016] 4. By reliably connecting the hoisted object to the lifting machinery, safety and quality risks caused by the shaking of the wind tower during the hoisting process are avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a split rotating nested complete set of slings in one embodiment of the present invention;

[0018] Figure 2 It is a cross-sectional schematic diagram of a split rotating nested complete set of slings in one embodiment of the present invention;

[0019] Figure 3 It is a schematic diagram of the structure of the nested lifting rings of the split rotating nested lifting equipment set in one embodiment of the present invention;

[0020] Figure 4 Schematic diagram of a semi-cylinder of a split rotating nested complete set of slings in one embodiment of the present invention Figure 1 ;

[0021] Figure 5Schematic diagram of a semi-cylinder of a split rotating nested complete set of slings in one embodiment of the present invention Figure 2 ;

[0022] Figure 6 Schematic diagram of a semi-cylinder of a split rotating nested complete set of slings in one embodiment of the present invention Figure 3 . DETAILED DESCRIPTION

[0023] The following will be described in more detail with reference to the schematic diagram of a split rotating nested complete sling and a slinging method of the present invention, wherein a preferred embodiment of the present invention is shown, and it should be understood that those skilled in the art can modify the present invention described herein while still achieving the advantageous effects of the present invention. Therefore, the following description should be understood as being widely known to those skilled in the art, and not as a limitation of the present invention.

[0024] The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more apparent from the following description and claims. It should be noted that the drawings are in very simplified form and in non-precise proportions, and are only used to facilitate and clearly assist in illustrating the purpose of the embodiments of the present invention.

[0025] In the following description, it should be understood that when a layer (or film), region, pattern or structure is referred to as being "on" a structure, layer (or film), region and / or pattern, it may be directly on another layer or structure, and / or there may be an intervening layer. In addition, it should be understood that when a layer is referred to as being "under" another layer, it may be directly under another layer, and / or there may be one or more intervening layers. In addition, references to being "on" and "under" each layer may be made based on the accompanying drawings.

[0026] The inventor has found in long-term production practice that, at present, the existing hoists are unable to adaptively tighten and lift the lifting nails of different sizes and loads as needed during the lifting process. Moreover, during the demoulding and lifting process of the precast concrete tower ring segments, due to factors such as the hoist itself or the lifting equipment, the force on the precast concrete tower ring segments during the demoulding and lifting process may also change unevenly, resulting in the shaking of the tower ring segments during the demoulding and lifting process, the ring segments and the hoist colliding or the lifting points breaking, or even sliding off. The existing transfer device cannot be adaptively tightened, which can easily cause damage to the tower notch, the lifting accuracy is difficult to control, and the components are damaged. The resulting on-site repairs, on-site aerial installation position adjustments, and component repairs result in a large amount of manpower, transportation capacity, and material resources. It can be seen that the use of the hoist is inefficient, the demoulding and lifting costs are too high, and there are safety hazards in the lifting and installation process.

[0027] Therefore, if Figure 1 and Figure 2As shown, Figure 1 It is a structural schematic diagram of a split rotating nested complete set of slings in one embodiment of the present invention; Figure 2 The cross-sectional view of a split rotating nested complete set of slings in one embodiment of the present invention is shown in FIG. The present invention provides a split rotating nested complete set of slings, comprising:

[0028] An outer sleeve 4, a reset pin 5 and a nested lifting ring 2, wherein the outer sleeve 4 has a hollow portion inside, into which the hanging nail 3 can be embedded during assembly, a recess is provided at the top of the outer sleeve 4, the reset pin 5 is provided in the recess, and the outer sleeve 4 is fastened and embedded in the nested lifting ring 2.

[0029] Please refer to Figure 3 In one embodiment of the present invention, the nested lifting ring 2 has an opening 21 inside, including a cylindrical space and a conical space. The cylindrical space mainly cooperates with the outer sleeve 4, and the conical space mainly cooperates with the reset pin 5.

[0030] In one embodiment of the present invention, the outer sleeve 4 is threadedly rotatably fastened to the nested lifting ring 2 .

[0031] In one embodiment of the present invention, the outer sleeve 4 is cylindrical and is assembled from a plurality of columns through a plurality of assembly positioning pins.

[0032] The specific shape and structure of the assembly positioning pin are not particularly limited, as long as they can assemble and fix multiple columns. Those skilled in the art can design or purchase the assembly positioning pin on the market according to the actual needs and purposes of the present invention.

[0033] For further information, please refer to Figure 4-Figure 6 The outer sleeve 4 is cylindrical and is assembled from two semi-cylinders 41 through a plurality of assembly positioning pins 6 .

[0034] Specifically, it can be seen that for a semi-cylinder 41, the top end has a recess 42, so after the two semi-cylinders 41 are assembled, a notch is formed to facilitate the setting of the reset pin 5.

[0035] In one embodiment, the reset pin 5 is a tapered reset pin.

[0036] For a semi-cylinder 41, its internal hollow part involves a first part 43, a second part 44 and a third part 45, wherein the first part 43 is semi-cylindrical, the second part 44 is semi-conical, the third part 45 is semi-cylindrical, and the second part 44 realizes the transition between the first part 43 and the third part 45, and the diameter of the first part 43 is greater than the diameter of the third part 45.

[0037] For the two semi-cylinders 41, the hollow portion formed after assembly is funnel-shaped, with a large upper space and a small lower space.

[0038] The hollow part of such a structure is convenient for clamping the hanging nail (such as an embedded part).

[0039] Please refer to Figure 1 The nested lifting ring 2 is provided with an annular steel component 1 on the upper part for easy connection, for example, connection with a lifting machinery hook.

[0040] The present invention also provides a lifting method, which comprises adopting the above-mentioned split rotating nested lifting device set, and the split rotating nested lifting device set clamps the lifting nails to lift the component to be transferred.

[0041] Specifically, for example, two semi-cylinders 41 are assembled, and the nail 3 is nested therein, and the reset pin 5 is temporarily stored in the recess of the outer set 4, and is screwed into the nested lifting ring 2 as the outer set rotates, and then connected to the lifting hook of the lifting machinery.

[0042] After the lifting is completed, remove the lifting hook of the lifting machinery, rotate the nested lifting ring 2 to separate the nested lifting ring 2 from the outer set 4, apply pressure to the reset pin 5 to complete the separation of the column of the outer set 4, and then complete the separation of the lifting device and the component (such as a precast concrete tower ring segment).

[0043] This hoist is not only used for hoisting wind towers, but also suitable for other precast concrete components.

[0044] The present invention provides a split rotating nested complete set of lifting tools, comprising: an outer set, a reset pin and a nested lifting ring, wherein the outer set has a hollow portion inside, into which a lifting nail can be embedded during assembly, a notch is provided on the top of the outer set, the reset pin is provided in the notch, and the outer set is fastened and embedded in the nested lifting ring. The advantages thereof include at least:

[0045] 1. Lightweight, simple, and ensures the tightness of the connection;

[0046] 2. Large bearing capacity and strong applicability to different types of embedded parts (i.e. hanging nails);

[0047] 3. During use, the hoisted object can be evenly stressed, ensuring stability during demoulding and hoisting;

[0048] 4. By reliably connecting the hoisted object to the lifting machinery, safety and quality risks caused by the shaking of the wind tower during the hoisting process are avoided.

[0049] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A split rotating nested complete set of slings, characterized in that: include: An outer set, a reset pin and a nested lifting ring, wherein the outer set has a hollow portion inside, into which a hanging nail can be embedded during assembly, a notch is provided on the top of the outer set, the reset pin is provided in the notch, and the outer set is fastened and embedded in the nested lifting ring; The outer set is cylindrical and is assembled from two semi-cylinders by a plurality of assembly positioning pins. The outer set is threadedly rotated and fastened to the nested lifting ring. The hollow part is funnel-shaped, with a large upper space and a small lower space. The nested lifting ring has an opening inside, including a cylindrical space and a conical space. The cylindrical space cooperates with the outer set, and the conical space cooperates with the reset pin.

2. The split rotating nested lifting device set as claimed in claim 1, characterized in that: An annular steel component is arranged on the upper part of the nested lifting ring.

3. A hoisting method, characterized in that: The method comprises adopting the split rotating nested lifting device set as described in claim 1 or 2, wherein the split rotating nested lifting device set clamps the lifting nails to lift the component to be transferred.

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