Universal lifting appliance for steel shell tower sections

Abstract

The utility model relates to a universal lifting appliance for steel shell tower sections, which comprises a frame, main balance beams, auxiliary balance beams and a lifting assembly, at least one main balance beam is welded inside the frame, a plurality of auxiliary balance beams are further welded between the main balance beams and the frame, and the lifting assembly is connected with the main balance beams and the auxiliary balance beams. A plurality of crane lifting lugs used for being connected with a crane in a hanging mode are evenly welded to the upper end face of the frame. And a plurality of hoisting assemblies are uniformly welded on the lower end surface of the frame. The steel shell tower crane has the advantages that the four crane lifting lugs and the four lifting assemblies are arranged, the four-point lifting design enables lifting stress to be plumb to the ground as much as possible, horizontal deformation of the upper end of a steel shell tower is reduced, and manufacturing precision is improved; 2, a *-shaped structure is adopted and is consistent with a steel shell tower shell, and auxiliary balance beams are mounted on diagonal lines to support horizontal stress and the like;

Description

Technical Field

[0001] The utility model relates to a universal hoisting sling for steel shell tower segments and belongs to the field of steel structure hoisting. Background Art

[0002] With the widespread application of steel structures in modern infrastructure and construction industries, especially cross-sea bridge projects, the demand for large-span and high-load-bearing bridge forms has increased sharply, and the manufacturing of steel shell towers has entered a new journey.

[0003] The deformation of the steel tower is an important step in manufacturing inspection. At present, the steel structure beam section is mainly hoisted by the balance beam (pole beam) hoist, which can effectively maintain the balance of the hoisted beam section and prevent the sling from damaging the equipment. However, due to the rectangular characteristics and instability of the steel tower structure (hollow inside, the overall rigidity is smaller than that of ordinary steel structure beam sections), when hoisting the steel tower, if two balance beam hoists are used, it is easy to cause the upper and lower ports of the steel tower segment to deform during hoisting, thereby reducing the manufacturing accuracy and affecting the assembly accuracy. In addition, the lifting point position of different segments needs to be adjusted according to the construction drawings, which affects the construction period and cost of the segment lifting ears.

[0004] Although steel structures have obvious advantages in the construction process, such as light weight, high strength, good plasticity, high efficiency and many other advantages, the deformation of the steel shell tower cannot be corrected due to the limitations of the lifting equipment during transportation and hoisting. Therefore, a universal lifting sling for steel shell tower segments is needed, which can reduce the deformation of the upper and lower ports caused by the transportation and hoisting of the steel shell tower while meeting the requirements of different segment sizes, making the transportation and hoisting work more standardized and safer. Utility Model Content

[0005] In order to overcome the defects of the prior art, the utility model provides a universal lifting device for steel shell tower segments. The technical solution of the utility model is:

[0006] A universal lifting sling for steel shell tower segments comprises a frame, a main balance beam, an auxiliary balance beam and a lifting assembly, wherein at least one main balance beam is welded inside the frame, and several auxiliary balance beams are welded between the main balance beam and the frame, and several crane lifting ears for hanging with a crane are evenly welded on the upper end surface of the frame; and several lifting assemblies are evenly welded on the lower end surface of the frame.

[0007] Each of the hanging components comprises an upper transverse hanging plate, a middle transverse hanging plate, a lower transverse hanging plate and a bottom vertical hanging plate. The upper transverse hanging plate, the middle transverse hanging plate and the lower transverse hanging plate are arranged parallel to each other and form a spacing. One end of the upper transverse hanging plate, the middle transverse hanging plate and the lower transverse hanging plate are welded to the frame. Connecting plates are welded between the middle transverse hanging plate and the upper transverse hanging plate, and between the middle transverse hanging plate and the lower transverse hanging plate. The bottom vertical hanging plate is welded to the lower part of the lower transverse hanging plate, and a number of hanging holes are arranged along the length direction of the bottom vertical hanging plate.

[0008] The frame is arranged in a rectangular shape, and there are four lifting ears of the crane, which are respectively arranged at the corners of the frame.

[0009] There are two main balance beams, and the two main balance beams are distributed in a cross shape.

[0010] There are four auxiliary balance beams, which are uniformly welded to the same main balance beam. One end of each auxiliary balance beam is welded to the main balance beam, and the other end is welded at the corner of the frame.

[0011] The main balance beam and the auxiliary balance beam are arranged in a cross shape in the frame as a whole.

[0012] An extension section is formed at the inner end of the bottom vertical hanging plate, and the extension section extends to the auxiliary balance beam. A plurality of hanging holes are arranged along the length direction of the extension section.

[0013] The advantages of the utility model are:

[0014] 1. Four crane lifting lugs and four lifting components are set up, and the four-point lifting design makes the lifting force as plumb as possible to the ground, reducing the horizontal deformation of the upper end of the steel shell tower and improving the manufacturing accuracy.

[0015] 2. Adopt the "M"-shaped structure setting, which is consistent with the outer shell of the steel tower, and install the auxiliary balance beam on the diagonal line to support the horizontal force.

[0016] 3. Strong applicability. The hoisting assembly at the bottom is provided with several hoisting holes, which can be applicable to multiple steel shell tower segments.

[0017] 4. Good versatility, can realize the recycling of different types of steel shell towers, low difficulty in modification and short time required.

[0018] 5. High efficiency, no need to replace the lifting equipment, only need to replace the position of the lower wire rope through the lifting hole, which reduces the time required for replacing the lifting equipment and speeds up the lifting efficiency.

[0019] 6. Easy to operate. It is easier to operate when using the hoist. Before hoisting, you only need to ensure that the utility model is horizontal. The difficulty of dangerous operations is low. There is no need to manually adjust the hoisting angle to make the steel shell tower segment plumb and lift from the ground.

[0020] 7. Good stability. Compared with the existing lifting, the lifting of this hoist is more stable during the lifting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the main structure of the utility model.

[0022] Figure 2 yes Figure 1 Side view of.

[0023] Figure 3 yes Figure 1 Top view of the . DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with specific embodiments, and the advantages and features of the present invention will become clearer as the description proceeds. However, these embodiments are merely exemplary and do not constitute any limitation to the scope of the present invention. It should be understood by those skilled in the art that the details and forms of the technical solution of the present invention may be modified or replaced without departing from the spirit and scope of the present invention, but these modifications and replacements fall within the scope of protection of the present invention.

[0025] See also Figures 1 to 3 The utility model relates to a universal lifting sling for steel shell tower segments, comprising a frame 1, a main balance beam 2, an auxiliary balance beam 3 and a lifting assembly 5, at least one main balance beam 2 is welded inside the frame 1, and several auxiliary balance beams 3 are welded between the main balance beam 2 and the frame 1, and several crane lifting ears 4 for hanging with a crane are evenly welded on the upper end surface of the frame 1; and several lifting assemblies 5 are evenly welded on the lower end surface of the frame 1.

[0026] The utility model enhances the stability and load-bearing capacity of the overall structure by welding the main balance beam 2 and the auxiliary balance beam 3 inside the frame 1; the arrangement of the main balance beam 2 and the auxiliary balance beam 3 helps to maintain the balance of the tower segment during the lifting process and reduces the safety hazards caused by the center of gravity shift.

[0027] The utility model is applicable to steel shell tower segments of different sizes and shapes, and increases the applicability and flexibility of the lifting device.

[0028] A crane lifting lug 4 and a lifting assembly 5 are respectively arranged on the upper end face and the lower end face of the frame 1, so as to facilitate the hanging of the crane and the fixation of the tower segment, thereby simplifying the lifting operation process; the evenly distributed crane lifting lug 4 and the lifting assembly 5 are helpful to disperse the force during lifting, reduce local stress concentration and improve safety.

[0029] Each of the hanging components includes an upper transverse hanging plate 51, a middle transverse hanging plate 52, a lower transverse hanging plate 53 and a bottom vertical hanging plate 54. The upper transverse hanging plate 51, the middle transverse hanging plate 52 and the lower transverse hanging plate 53 are arranged parallel to each other and form a spacing. One end of the upper transverse hanging plate 51, the middle transverse hanging plate 52 and the lower transverse hanging plate 53 are welded to the frame 1. Connecting plates are welded between the middle transverse hanging plate 52 and the upper transverse hanging plate 51, and between the middle transverse hanging plate 52 and the lower transverse hanging plate 53. The bottom vertical hanging plate 54 is welded to the lower part of the lower transverse hanging plate 53, and a number of hanging holes 55 are arranged along the length direction of the bottom vertical hanging plate 54.

[0030] The lifting assembly has the following advantages:

[0031] (1) By providing the upper transverse hoisting plate 51, the middle transverse hoisting plate 52 and the lower transverse hoisting plate 53, a multi-layer support structure is formed, thereby increasing the stability and load-bearing capacity during hoisting.

[0032] (2) The spacing between the horizontal lifting plates can effectively disperse the force during lifting, reduce the pressure on a single point, and improve the durability of the overall structure.

[0033] (3) The provision of the lifting holes 55 allows the connection points of the lifting ropes to be adjusted according to specific lifting requirements, thus providing more lifting options and flexibility.

[0034] The frame 1 is rectangular, and there are four hoisting lugs 4, which are respectively arranged at the corners of the frame 1. The hoisting lugs 4 are arranged at the four corners of the frame 1, so that the force is more uniform during hoisting, which helps to maintain the balance of the hoisted object; the rectangular frame 1 provides a stable base, and the arrangement of the four lugs helps to maintain the stability of the structure during the hoisting process.

[0035] There are two main balance beams 1, and the two main balance beams 1 are distributed in a cross shape.

[0036] There are four auxiliary balance beams 3 , which are uniformly welded to the same main balance beam. One end of each auxiliary balance beam 3 is welded to the main balance beam, and the other end is welded at the corner of the frame 1 .

[0037] The cooperation between the main balance beam 1 and the auxiliary balance beam 3 realizes:

[0038] (1) The cross-shaped main balance beam 1 provides stronger lateral and longitudinal stability, which helps to maintain the balance of the overall structure during the lifting process.

[0039] (2) The four auxiliary balance beams 3 are evenly welded on the main balance beam, which helps to evenly distribute the load and reduce local stress concentration.

[0040] (3) One end of the auxiliary balance beam 3 is welded to the main balance beam, and the other end is welded to the corner of the frame 1, which enhances the rigidity of the overall structure.

[0041] (4) The combination of the main balance beam and the auxiliary balance beam increases the load-bearing capacity of the structure, making it suitable for heavier or larger lifting tasks.

[0042] (5) The uniform distribution of the auxiliary balance beam 3 helps to optimize the distribution of load on the structure and reduce deformation or damage caused by uneven force.

[0043] The main balance beam 2 and the auxiliary balance beam 3 are arranged in a cross shape within the frame as a whole. The cross-shaped beam structure provides better support and stability, which helps to maintain the balance of the structure during lifting. The main and auxiliary balance beams distributed in a cross shape can more evenly disperse the force during lifting and reduce local stress concentration.

[0044] The inner end of the bottom vertical hanging plate 54 forms an extension section, which extends to the auxiliary balance beam 3. A plurality of hanging holes 55 are arranged along the length direction of the extension section.

[0045] The cross setting of the main balance beam 2 and the auxiliary balance beam 3 increases the overall strength of the structure and improves the load-bearing capacity; the extension section of the bottom vertical lifting plate 54 provides an additional lifting point, and different lifting holes 55 can be selected for lifting as needed, which increases the flexibility of operation.

[0046] The working principle of the utility model is:

[0047] Preparation for lifting: Several crane lifting lugs 4 are evenly welded on the upper end surface of the frame 1. These lifting lugs are key components for connecting the lifting device with the crane, ensuring that the lifting device can be stably lifted by the crane;

[0048] Connect the crane: Use a sling or wire rope to connect the crane eye 4 to the crane hook to ensure that the sling can be lifted by the crane and operate;

[0049] Adjustment of the hoisting holes: On the vertical hoisting plate 54 at the bottom of the hoisting assembly, several hoisting holes 55 are arranged along its length. According to the specific shape and size of the steel shell tower segment, select the appropriate hoisting hole 55 to connect the sling.

[0050] Connecting the steel shell tower segment: Connect the sling to the appropriate position of the steel shell tower segment through the lifting hole 55. Since the lifting hole 55 is optional, the close fit between the lifting device and the tower segment is ensured.

[0051] Lifting operation: After confirming that all connections have been completed, operate the crane to slowly lift the sling so that the steel shell tower segment gradually leaves the ground. Due to the M-shaped design of the main balance beam 2 and the auxiliary balance beam 3, the load is evenly distributed, reducing the local pressure on the tower segment or the sling.

[0052] Transportation and positioning: During the lifting process, the crane is operated to transport the steel shell tower segment safely to the designated location. Due to the design of the lifting equipment, the tower segment can remain stable even during transportation.

[0053] Lowering and installation: After reaching the designated location, the crane is operated to slowly lower the spreader and accurately place the steel tower segment to the predetermined location. During the entire process, the structural design of the spreader ensures the stability and safety of the operation.

[0054] Unloading and disassembly: After the steel shell tower segment is safely placed, the slings are released from the lifting holes 55, and then the lifting equipment can be removed from the tower segment to prepare for the next lifting operation.

[0055] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A universal lifting sling for steel tower segments, characterized in that: It includes a frame, a main balance beam, an auxiliary balance beam and a lifting assembly. At least one main balance beam is welded inside the frame, and several auxiliary balance beams are welded between the main balance beam and the frame. Several crane lifting ears for hanging with a crane are evenly welded on the upper end surface of the frame; and several lifting assemblies are evenly welded on the lower end surface of the frame.

2. The universal lifting sling for steel shell tower segments according to claim 1 is characterized in that: Each of the hanging components comprises an upper transverse hanging plate, a middle transverse hanging plate, a lower transverse hanging plate and a bottom vertical hanging plate. The upper transverse hanging plate, the middle transverse hanging plate and the lower transverse hanging plate are arranged parallel to each other and form a spacing. One end of the upper transverse hanging plate, the middle transverse hanging plate and the lower transverse hanging plate are welded to the frame. Connecting plates are welded between the middle transverse hanging plate and the upper transverse hanging plate, and between the middle transverse hanging plate and the lower transverse hanging plate. The bottom vertical hanging plate is welded to the lower part of the lower transverse hanging plate, and a number of hanging holes are arranged along the length direction of the bottom vertical hanging plate.

3. The universal lifting device for steel tower segments according to claim 1 or 2, characterized in that: The frame is arranged in a rectangular shape, and there are four lifting ears of the crane, which are respectively arranged at the corners of the frame.

4. The universal lifting sling for steel shell tower segments according to claim 3 is characterized in that: There are two main balance beams, and the two main balance beams are distributed in a cross shape.

5. The universal lifting device for steel tower segments according to claim 3 is characterized in that: There are four auxiliary balance beams, which are uniformly welded to the same main balance beam. One end of each auxiliary balance beam is welded to the main balance beam, and the other end is welded at the corner of the frame.

6. The universal lifting device for steel tower segments according to claim 5, characterized in that: The main balance beam and the auxiliary balance beam are arranged in a cross shape in the frame as a whole.

7. The universal lifting device for steel tower segments according to claim 2, characterized in that: An extension section is formed at the inner end of the bottom vertical hanging plate, and the extension section extends to the auxiliary balance beam. A plurality of hanging holes are arranged along the length direction of the extension section.

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