Special lifting appliance for lifting whole circle of mixed tower

Abstract

The utility model discloses a special lifting appliance for lifting a whole circle of a mixed tower, which comprises a cross-shaped balance beam which comprises a main beam which is of a cross-shaped structure; a plurality of reinforcing beams; the four lifting points are symmetrically arranged on four end arms, extending outwards, of the main beam respectively; the lifting lug is arranged in the center of the upper surface of the cross balance beam; the lifting holes I are formed in the lifting lugs; one ends of the stiffening plates are detachably arranged on the two sides of the lifting lug, and main bodies of the stiffening plates are fixed to the cross balance beam; and the plurality of rotary hanging rings are respectively hung on the four hanging points through hanging chains. According to the special lifting appliance for lifting the whole circle of the mixed tower, the length of the lifting chain and the lifting height can be effectively reduced, meanwhile, the lifting balance of the whole circle of the mixed tower can be conveniently and effectively mastered, and the lifting difficulty is reduced and the lifting efficiency is improved on the premise of ensuring safe construction.

Description

Technical Field

[0001] This utility model relates to a special lifting tool for hoisting mixed towers in a circular shape. Background Technology

[0002] A concrete tower is a structural component used to support equipment such as wind turbine generators, and is an important part of wind power hybrid towers. The concrete tower must withstand the enormous bending moments and torques generated by the rotation of the wind turbine, as well as the thrust of the wind on the entire unit, and reliably transfer these loads to the foundation. A concrete tower is assembled by sequentially hoisting multiple sections of a circular hybrid tower, which are mainly produced through segmented fabrication and integral circular fabrication. Traditionally, the hoisting equipment for circular hybrid towers typically uses wire ropes or chains. During hoisting, to meet the national standard requirement that the angle between the wire rope and the horizontal plane be no less than 60°, the wire ropes are often very long, especially when the sections are large. To meet national requirements, larger cranes are needed for hoisting circular hybrid towers, resulting in high hoisting heights, demanding high-performance lifting equipment, and time-consuming processes. This is unsuitable for the current tight schedules and high production volumes, severely impacting project timelines and economic benefits. Chinese Patent Application No. 201921417702.4 discloses a device for hoisting a wind turbine tower, characterized by comprising a first sub-lifting tool and a second sub-lifting tool, which are respectively capable of connecting to a first side and a second side of the tower. (Refer to the specification and appendix.) Figure 4 It can be seen that in this device, the first sub-lifting device is connected to the first lifting lug 210 through the first rope-like component 205, the fixed pulley block, and the circular lifting belt 206. That is, it still uses a lifting device that is entirely made of steel wire rope for lifting, which cannot effectively solve the above-mentioned technical problems. Utility Model Content

[0003] One object of this invention is to solve at least the problems described above and to provide at least the advantages that will be explained later.

[0004] Another objective of this invention is to provide a special lifting tool for the hoisting of mixed towers in a circular shape. This tool can effectively reduce the length of the lifting chain and the hoisting height, while facilitating and effectively controlling the balance of the hoisting of mixed towers in a circular shape. Under the premise of ensuring safe construction, it reduces the difficulty of hoisting and improves the efficiency of hoisting.

[0005] To achieve these objectives and other advantages according to this utility model, a special lifting tool for lifting mixed towers in a circular shape is provided, comprising:

[0006] The cross-shaped balance beam includes a main beam, which has a cross-shaped structure; and multiple reinforcing beams, which are obliquely distributed within the cross-shaped structure of the main beam, with both ends of each reinforcing beam fixedly mounted on the main beam.

[0007] The four lifting points are symmetrically set on the four end arms extending outward from the main beam.

[0008] The lifting lug is located at the center of the upper surface of the cross-shaped balance beam;

[0009] Lifting hole I is located on the lifting lug;

[0010] A pair of stiffening plates, one end of which is detachably mounted on both sides of the lifting lug, and the main body of the stiffening plate is fixed to the cross balance beam;

[0011] Multiple rotating lifting rings are suspended from four lifting points by lifting chains. Each rotating lifting ring includes a lifting ring and a lifting chain that is detachably mounted on the lifting hole II of the lifting ring. The upper end of the lifting nail is rotatably mounted on the base of the lifting ring through a bearing, and the lower end of the lifting nail is detachably inserted into the pre-embedded part of the circular lifting nail of the mixed tower. The lifting nails of the multiple rotating lifting rings are evenly and symmetrically inserted into the multiple pre-embedded parts of the circular lifting nail of the mixed tower.

[0012] Preferably, it also includes:

[0013] Four auxiliary beams are detachably mounted on the four end arms, and the extension direction of the four auxiliary beams is consistent with that of the four end arms. The front ends of the four auxiliary beams extend out of the front ends of the four end arms respectively.

[0014] Four auxiliary lifting points are symmetrically set on the front end of the four auxiliary beams, and the four auxiliary lifting points do not contact each other with the four end arms;

[0015] Multiple auxiliary rotating lifting rings are respectively suspended on four auxiliary lifting points by auxiliary lifting chains. Each auxiliary rotating lifting ring includes an auxiliary lifting ring and an auxiliary lifting chain detachably mounted on the auxiliary lifting hole II of the auxiliary lifting ring. A hook is rotatably mounted on the base of the auxiliary lifting ring by a bearing at its upper end, and the hook can be detachably hooked to any lifting ring that is closest to it.

[0016] Preferably, four pairs of rotating lifting rings are suspended in pairs at four lifting points by lifting chains, and the lifting nails of the four pairs of rotating lifting rings are evenly and symmetrically inserted into the eight pre-embedded lifting nails of the whole circle of the tower.

[0017] Preferably, it also includes: four pairs of auxiliary rotating rings, which are suspended in pairs on four auxiliary lifting points by chains, and the hooks of the four pairs of auxiliary rotating rings are evenly and symmetrically detachably hooked to any ring closest to them.

[0018] Preferably, the length of any end arm is L1, the maximum length of any auxiliary beam on any end arm extending outward relative to the end wall is L2, the cross-sectional radius of the concrete circle is r, and L1+L2≥r.

[0019] Preferably, any one of the four end arms is a channel steel structure, and the four auxiliary beams are detachably fixed in the groove of the channel steel of any one end arm by multiple bolts.

[0020] This utility model has at least the following beneficial effects:

[0021] The special lifting tool for lifting a mixed-tower circular structure provided by this utility model has lifting lugs that can be connected to a gantry crane for convenient crane lifting; the cross balance beam enables horizontal lifting of the mixed-tower circular structure, facilitating the control of balance during lifting; furthermore, the cross balance beam effectively enlarges the diameter of the original lifting points, allowing the upper ends of multiple lifting chains to be fixed to different lifting points, ensuring that the lifting chain angle is less than 60° while effectively reducing the length of the lifting chains and the lifting height; the lifting points provide a secure connection to the cross balance beam and a firm and safe attachment point for the lifting chains; the rotating lifting ring provides a flexible connection, ensuring sufficient distance between the rotating lifting ring and the cross balance beam; the rotating lifting ring can be inserted into the pre-embedded lifting nails in the mixed-tower circular structure, providing a safe lifting environment.

[0022] In summary, the special lifting tool for lifting mixed towers into a circular shape provided by this utility model can effectively reduce the length of the lifting chain and the lifting height, while facilitating and effectively controlling the balance of the mixed towers into a circular shape during lifting. Under the premise of ensuring safe construction, it reduces the difficulty of lifting and improves the efficiency of lifting.

[0023] Other advantages, objectives and features of the present invention will be reflected in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. Attached Figure Description

[0024] Figure 1 This is a side view of the special lifting tool for lifting mixed towers in one embodiment of the present invention;

[0025] Figure 2 This is a front view structural diagram of the special lifting tool for lifting mixed towers in a single embodiment of the present invention;

[0026] Figure 3 This is a top view of the special lifting tool for lifting mixed towers in one embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of the hanging chain in one embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the structure of any rotating lifting ring in one embodiment of the present invention;

[0029] Figure 6 This is a side view of the special lifting tool for lifting mixed towers in another embodiment of the present invention.

[0030] Figure 7 This is a top view of the special lifting tool for lifting mixed towers in another embodiment of the present invention;

[0031] Figure 8 This is a front view structural diagram of the special lifting tool for lifting mixed towers in another embodiment of the present invention;

[0032] Figure 9 This is a top view of the special lifting tool for lifting mixed towers in another embodiment of the present invention;

[0033] Figure 10 This is a front view structural diagram of the special lifting tool for lifting mixed towers in another embodiment of the present invention;

[0034] Figure 11 This is a structural schematic diagram of the cross-section of any one of the four end arms described in another embodiment of the present invention. Detailed Implementation

[0035] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0036] It should be understood that terms such as “having”, “including” and “comprising” used herein do not preclude the existence or addition of one or more other elements or combinations thereof.

[0037] like Figures 1-5 As shown, this utility model provides a special lifting tool for hoisting mixed towers in a circular shape, comprising:

[0038] A cross-shaped balance beam 12 includes a main beam with a cross-shaped structure; multiple reinforcing beams 17, which are obliquely distributed within the cross-shaped structure of the main beam, with both ends of each reinforcing beam fixed to the main beam; four lifting points 14, which are symmetrically arranged on the four outwardly extending end arms of the main beam; lifting lugs 11, which are located at the center of the upper surface of the cross-shaped balance beam; lifting holes I, which are formed on the lifting lugs; and pairs of stiffening plates 12, one end of which is detachably mounted on both sides of the lifting lugs, and the main stiffening plates are... The body is fixed to the cross balance beam; multiple rotating lifting rings 16 are respectively suspended on four lifting points by lifting chains. Each rotating lifting ring includes a lifting ring 161, and the lifting chain is detachably set on the lifting hole II of the lifting ring; the lifting nail 162 is rotatably set on the base 163 of the lifting ring by a bearing, and the lower end of the lifting nail is detachably inserted into the lifting nail pre-embedded part 101 of the mixing tower circle 10, and the lifting nails of multiple rotating lifting rings are evenly and symmetrically detachably inserted into multiple lifting nail pre-embedded parts of the mixing tower circle.

[0039] The special lifting tool for lifting a mixed-tower circular structure provided by this utility model has lifting lugs that can be connected to a gantry crane for convenient crane lifting; the cross balance beam enables horizontal lifting of the mixed-tower circular structure, facilitating the control of balance during lifting; furthermore, the cross balance beam effectively enlarges the diameter of the original lifting points, allowing the upper ends of multiple lifting chains to be fixed to different lifting points, ensuring that the lifting chain angle is less than 60° while effectively reducing the length of the lifting chains and the lifting height; the lifting points provide a secure connection to the cross balance beam and a firm and safe attachment point for the lifting chains; the rotating lifting ring provides a flexible connection, ensuring sufficient distance between the rotating lifting ring and the cross balance beam; the rotating lifting ring can be inserted into the pre-embedded lifting nails in the mixed-tower circular structure, providing a safe lifting environment.

[0040] Specifically, in this embodiment, there is one lifting lug 11, which is welded to the cross balance beam 13. There is one cross balance beam 13. The cross balance beam 13 is welded to the inclined reinforcing beam 17. There are four inclined reinforcing beams 17, which are connected to the cross balance beam 13 respectively. There are four lifting points 14. Each lifting point 14 is connected to the lifting chain 15. The lifting chain 15 is connected to the rotating lifting ring 16 respectively.

[0041] The working principle is as follows: During the hoisting operation, the main hook of the crane is attached to the lifting lug 11, the cross balance beam 13 is lifted, the rotating lifting rings 16 are inserted into the embedded parts of the lifting nails of the mixed tower ring, and then the crane is lifted, thereby realizing the lifting movement of the mixed tower ring.

[0042] like Figure 6 As shown, in a preferred embodiment, the system further includes: four auxiliary beams 18, which are detachably mounted on the four end arms, and the extension direction of the four auxiliary beams is consistent with that of the four end arms, with the front ends of the four auxiliary beams extending out of the front ends of the four end arms; four auxiliary lifting points 19, which are symmetrically mounted on the front ends of the four auxiliary beams, and the four auxiliary lifting points do not contact each other with the four end arms; multiple auxiliary rotating lifting rings, which are respectively suspended on the four auxiliary lifting points by auxiliary lifting chains 20, each auxiliary rotating lifting ring including an auxiliary lifting ring, and the auxiliary lifting chain is detachably mounted on the auxiliary lifting hole II of the auxiliary lifting ring; and a hook, the upper end of which is rotatably mounted on the base of the auxiliary lifting ring by a bearing, and the hook is detachably hooked to the nearest lifting ring. In this scheme, four auxiliary beams are used to provide four auxiliary lifting points. When the diameter of the mixed tower ring is relatively large, the four auxiliary beams can be extended outward by a certain length relative to the four end arms of the main beam, thereby driving the four auxiliary lifting points to extend outward and cooperate with the four adjacent lifting points to provide further triangular stable lifting for the rotating ring, so as to adapt to the lifting operation requirements of mixed tower rings with different diameters and ensure lifting safety.

[0043] like Figures 7-8As shown, in a preferred embodiment, four pairs of rotating lifting rings are suspended in pairs at four lifting points by lifting chains. The lifting pins of the four pairs of rotating lifting rings are evenly and symmetrically inserted into eight pre-embedded lifting pins in the circular shape of the tower, increasing the number of lifting pins from four to eight, thereby further improving the balance and safety of the lifting operation.

[0044] like Figures 9-10 As shown, in a preferred embodiment, it further includes: four pairs of auxiliary rotating rings, which are suspended in pairs on four auxiliary lifting points by chains, and the hooks of the four pairs of auxiliary rotating rings are evenly and symmetrically detachably hooked to any ring closest to them.

[0045] In a preferred embodiment, the length of any end arm is L1, the maximum outward extension length of any auxiliary beam on any end arm relative to the end wall is L2, the cross-sectional radius of the concrete circle is r, and L1+L2≥r. In this embodiment, the overall length of any end arm and any auxiliary beam, as well as the distance between their lifting points and auxiliary lifting points, can be adjusted to accommodate the lifting requirements of mixed tower rings of different diameters, ensuring lifting safety.

[0046] like Figure 11 As shown, in a preferred embodiment, any one of the four end arms is a channel steel structure, and the four auxiliary beams are detachably fixed in the groove of the channel steel of any one end arm by multiple bolts 21.

[0047] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A special lifting tool for hoisting mixed-tower circular structures, characterized in that, include: The cross-shaped balance beam includes a main beam, which has a cross-shaped structure. Multiple reinforcing beams are distributed diagonally within the cross-shaped structure of the main beam, and both ends of any one reinforcing beam are fixedly mounted on the main beam. The four lifting points are symmetrically set on the four end arms extending outward from the main beam. The lifting lug is located at the center of the upper surface of the cross-shaped balance beam; Lifting hole I is located on the lifting lug; A pair of stiffening plates, one end of which is detachably mounted on both sides of the lifting lug, and the main body of the stiffening plate is fixed to the cross balance beam; Multiple rotating lifting rings are suspended from four lifting points by lifting chains. Each rotating lifting ring includes a lifting ring and a lifting chain that is detachably mounted on the lifting hole II of the lifting ring. The upper end of the lifting nail is rotatably mounted on the base of the lifting ring through a bearing, and the lower end of the lifting nail is detachably inserted into the pre-embedded part of the circular lifting nail of the mixed tower. The lifting nails of the multiple rotating lifting rings are evenly and symmetrically inserted into the multiple pre-embedded parts of the circular lifting nail of the mixed tower.

2. The special lifting tool for lifting mixed towers in a circular shape as described in claim 1, characterized in that, Also includes: Four auxiliary beams are detachably mounted on the four end arms, and the extension direction of the four auxiliary beams is consistent with that of the four end arms. The front ends of the four auxiliary beams extend out of the front ends of the four end arms respectively. Four auxiliary lifting points are symmetrically set on the front end of the four auxiliary beams, and the four auxiliary lifting points do not contact each other with the four end arms; Multiple auxiliary rotating lifting rings are respectively suspended on four auxiliary lifting points by auxiliary lifting chains. Each auxiliary rotating lifting ring includes an auxiliary lifting ring and an auxiliary lifting chain detachably mounted on the auxiliary lifting hole II of the auxiliary lifting ring. A hook is rotatably mounted on the base of the auxiliary lifting ring by a bearing at its upper end, and the hook can be detachably hooked to any lifting ring that is closest to it.

3. The special lifting tool for lifting mixed towers in a circular shape as described in claim 1, characterized in that, Four pairs of rotating lifting rings are suspended in pairs at four lifting points by lifting chains, and the lifting nails of the four pairs of rotating lifting rings are evenly and symmetrically inserted into the eight pre-embedded lifting nails of the whole circle of the tower.

4. The special lifting tool for lifting mixed towers in a circular shape as described in claim 3, characterized in that, Also includes: Four pairs of auxiliary rotating rings are suspended in pairs on four auxiliary lifting points by chains, and the hooks of the four pairs of auxiliary rotating rings are evenly and symmetrically hooked to any ring closest to them.

5. The special lifting tool for lifting mixed towers in a circular shape as described in claim 1, characterized in that, The length of any end arm is L1, the maximum length of any auxiliary beam on any end arm extending outward relative to the end wall is L2, the cross-sectional radius of the concrete circle is r, and L1+L2≥r.

6. The special lifting tool for lifting mixed towers in a circular shape as described in claim 2, characterized in that, Any one of the four end arms is a channel steel structure, and the four auxiliary beams are detachably fixed in the groove of the channel steel of any one end arm by multiple bolts.

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