Hoisting device for hoisting large-size component

Abstract

The utility model discloses a hoisting device for hoisting a large-size component, which belongs to the technical field of constructional engineering construction and comprises a hoisting frame, an adjustable rope and four hoisting staddle, the lifting frame is of a cross-shaped symmetrical structure, and frame lifting lugs are fixed to the upper surfaces and the lower surfaces of the four edges of the lifting frame. The lifting staddle is of a cross-shaped symmetrical structure, and a staddle lifting lug is fixed to the center of the upper surface of the lifting staddle. The hoisting staddle is arranged and connected in the component, the hoisting frame is located above the component, frame lifting lugs on the four edges of the lower surface of the hoisting frame are connected with staddle lifting lugs of the four hoisting staddle through adjustable ropes respectively, and frame lifting lugs on the four edges of the upper surface of the hoisting frame are connected with hoisting equipment through adjustable ropes respectively; or, the lifting frame is located above the component, the frame lifting lugs on the four edges of the lower surface are directly connected with the component through the adjustable ropes respectively, and the frame lifting lugs on the four edges of the upper surface are connected with the hoisting equipment through the adjustable ropes respectively. The material is easy to obtain, the manufacturing is convenient, the application range is wide, the repeated utilization is realized, and the overall stability of the hung component can be ensured.

Description

Technical Field

[0001] This utility model belongs to the field of construction engineering technology, and relates to a hoisting device, especially a hoisting device for hoisting large-sized components. Background Technology

[0002] The "Hualong One" nuclear power reactor has numerous pits surrounding its surrounding facilities, and the construction of the reinforcing steel in these pits directly impacts the long construction cycle of the surrounding facilities. Currently, the construction of the reinforcing steel in the pits is hampered by the long waiting time caused by the preceding technological processes. To address this issue, the construction process for the reinforcing steel cages in the pits is being optimized. This research utilizes a modular construction process for the reinforcing steel cages. Compared to the traditional in-situ binding of the reinforcing steel in the pits, this method allows for the prefabrication of the reinforcing steel cages during the preceding technological processes. This eliminates space constraints, improves binding efficiency, reduces the difficulty of binding the reinforcing steel, and does not affect the normal construction of the preceding work in that area, saving a significant amount of time. However, using prefabricated reinforcing steel cages presents the following challenges: 1. The reinforcing steel cages are large in size, with large and heavy reinforcing steel bars, making them prone to deformation during hoisting; 2. The dense arrangement of the reinforcing steel bars in the cages makes it difficult to set the lifting points, leading to imbalance and damage to the reinforcing steel bars at the lifting points. Utility Model Content

[0003] This utility model provides a lifting device for hoisting large-sized components to overcome the shortcomings of the prior art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A lifting device for hoisting large components includes a lifting frame, adjustable ropes, and four lifting supports. The lifting frame has a cross-shaped symmetrical structure, with lifting lugs fixed to the upper and lower surfaces of each of the four sides. The lifting supports also have a cross-shaped symmetrical structure, with a support lug fixed to the center of the upper surface. The lifting supports are installed and connected inside the component, with the lifting frame positioned above the component. The lifting lugs on the four sides of the lower surface are connected to the support lugs of the four lifting supports via adjustable ropes, and the lifting lugs on the four sides of the upper surface are connected to the lifting equipment via adjustable ropes. Alternatively, the lifting frame is positioned above the component, with the lifting lugs on the four sides of the lower surface directly connected to the component via adjustable ropes, and the lifting lugs on the four sides of the upper surface connected to the lifting equipment via adjustable ropes.

[0006] To optimize the above technical solution, the specific measures also include:

[0007] Furthermore, the lifting frame has multiple lifting lugs on its four sides and upper and lower surfaces, with these multiple lifting lugs distributed radially.

[0008] Furthermore, the lifting frame consists of a long H-beam and two short H-beams, with the short H-beams being shorter than the long H-beam. The two short H-beams are respectively fixed to the two side flanges in the middle of the long H-beam, forming the cross-shaped symmetrical structure.

[0009] Furthermore, in the lifting frame, the upper and lower surfaces of the long H-beam are each provided with two stiffening ribs fixed thereto, which are located at the extensions of the short H-beam respectively.

[0010] Furthermore, in the lifting frame, each lifting lug has at least one stiffening rib on its inner side.

[0011] Furthermore, the lifting support frame consists of one long support H-beam and two short support H-beams. The short support H-beams are shorter than the long support H-beams, and the two short support H-beams are respectively fixed on the two side flanges in the middle of the long support H-beams, forming the cross-shaped symmetrical structure.

[0012] Furthermore, in the lifting frame, at least one stiffening rib is provided on both sides of the lifting lug.

[0013] Furthermore, the adjustable rope is a steel wire rope or a flexible sling.

[0014] Furthermore, the adjustable rope is equipped with a shackle at its end, which is used to connect to the lifting frame, lifting support, and lifting equipment.

[0015] Furthermore, a lifting lug is also fixed at the center of the lower surface of the lifting frame.

[0016] The beneficial effects of this utility model are as follows: This utility model provides a lifting device for hoisting large-sized components, including an assemblable lifting frame, adjustable ropes, and a lifting support frame. The lifting frame is equipped with multiple sets of lifting lugs, making it suitable for lifting components of different sizes simultaneously, thus having a wide range of applications. Simultaneously, it ensures the overall stability of the component remains unaffected, guaranteeing construction quality. The device is also reusable, offering high economic benefits, and the materials are readily available and easy to manufacture. This device can be used for hoisting operations in modular construction of large-sized reinforcing cages, as well as for hoisting other similar large-volume objects that are difficult to reinforce or prone to deformation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the assembly state of the lifting device used for hoisting large components, with the inner frame lifting lugs connected.

[0018] Figure 2 This is a schematic diagram of the assembly state of the lifting device used for hoisting large components, with the outer frame lifting lugs connected.

[0019] Figure 3 This is a structural diagram of the lifting frame in a lifting device used for hoisting large components;

[0020] Figure 4 This is a structural diagram of the lifting support frame in a lifting device used for hoisting large components;

[0021] Figure 5 This is a schematic diagram of the lifting support frame pre-embedded in the steel cage. Detailed Implementation

[0022] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0023] like Figure 1 and Figure 2 As shown, this utility model provides a lifting device for hoisting large-sized components, including a lifting frame 1, adjustable ropes 2, and four lifting supports 3. Figure 3 As shown, the lifting frame 1 has a cross-shaped symmetrical structure, with lifting lugs 11 fixed to the upper and lower surfaces of all four sides. Figure 4 As shown, the lifting frame 3 has a cross-shaped symmetrical structure, and the center of the upper surface is fixed with a frame lifting lug 31.

[0024] If the lifting component has a complex structure, lacks reliable lifting points, and is prone to deformation, a combination of lifting frame 1, adjustable ropes 2, and lifting support frame 3 can be used: the lifting support frame 3 is installed and connected inside the component, the lifting frame 1 is located above the component, and the lifting lugs 11 on the four sides of the lower surface are connected to the lifting lugs 31 of the four lifting support frames 3 via adjustable ropes 2. The lifting lugs 11 on the four sides of the upper surface are connected to the lifting equipment via adjustable ropes 2. If the object to be lifted has a simple structure and a uniform weight distribution, lifting can be performed using only the lifting frame 1: the lifting frame 1 is located above the component, the lifting lugs 11 on the four sides of the lower surface are directly connected to the component via adjustable ropes 2, and the lifting lugs 11 on the four sides of the upper surface are connected to the lifting equipment via adjustable ropes 2.

[0025] Preferably, the lifting frame 1 has multiple lifting lugs 11 on its four sides and upper and lower surfaces, distributed radially along the length of the sides. That is, the lifting frame 1 has multiple sets of lifting lugs 11, with four lugs per set, to meet the lifting requirements of components of different sizes. In this embodiment, two sets of lifting lugs 11 are provided, one set located on the inner side and the other on the outer side.

[0026] Specifically, such as Figure 3 As shown, the lifting frame 1 consists of a long H-beam 12 and two short H-beams 13. The short H-beams 13 are shorter than the long H-beam 12. The two short H-beams 13 are fixed to the two side flanges in the middle of the long H-beam 12, forming a cross-shaped symmetrical structure.

[0027] The upper and lower surfaces of the long H-beam 12 are provided with two stiffening ribs 14 fixed thereto, which are located at the extension of the short H-beam 13, to increase the overall mechanical strength of the lifting frame 1.

[0028] Each lifting lug 11 has at least one stiffening rib 14 on its inner side, which is fixed to the long H-beam 12 / short H-beam 13 to increase the mechanical strength of the connection of the lifting frame 1. In this embodiment, each lifting lug 11 has two stiffening ribs 14 on its inner side.

[0029] like Figure 4 As shown, the lifting support frame 3 consists of a long support frame H-beam 32 and two short support frame H-beams 33. The short support frame H-beams 33 are shorter than the long support frame H-beams 32. The two short support frame H-beams 33 are respectively fixed on the two side flanges in the middle of the long support frame H-beams 32, forming a cross-shaped symmetrical structure.

[0030] Each side of the support lug 31 is provided with at least one support stiffening rib 34, which is fixed to the long support H-beam 32 / short support H-beam 33, to increase the mechanical strength of the connection of the support lug 31. In this embodiment, each side of the support lug 31 is provided with a support stiffening rib 34.

[0031] The center of the lower surface of the lifting frame 3 is also fixed with a frame lifting lug 31 for load testing, which is not used during the application of the device.

[0032] Both the scaffold lifting lug 11 and the support scaffold lifting lug 31 are made of 16mm thick Q235B steel plate with a hole diameter of 50mm. Both the scaffold stiffening rib 14 and the support scaffold stiffening rib 34 are made of 10mm thick Q235B steel plate with the same length as the web of the H-beam.

[0033] The adjustable rope 2 is a steel wire rope or a flexible sling, and the appropriate length and specifications can be selected according to the weight of the suspended component.

[0034] like Figure 1 and Figure 2 As shown, the end of the adjustable rope 2 is equipped with a shackle 21, which is connected to the lifting frame 1, the lifting support frame 3, and the lifting equipment.

[0035] Using this lifting device for the hoisting of large-size rebar cages: The lifting support frame 3 is pre-embedded inside rebar cage A and is secured to the upper rebar mesh of rebar cage A using thick iron wire. Figure 5 As shown, the lifting frame 1 is connected to the lifting support frame 3 pre-embedded in the steel cage via a vertical adjustable rope 2. The length of the adjustable rope 2 can be selected according to the weight of the steel cage to be lifted and the actual site conditions, ensuring that the lifting frame 1 is positioned above the steel module to facilitate the lifting operation and ensure that all components of the lifting device are evenly stressed.

[0036] When the reinforcing cage is small, the adjustable rope 2 is hung on the inner side of the lifting lug 11 of the lifting frame 1, and the lifting lug 11 is evenly and symmetrically selected on all four sides. Figure 1 As shown. When the steel cage is large, the adjustable rope 2 is hung on the outermost lifting lug 11 of the lifting frame 1, with the lifting lug 11 evenly and symmetrically selected on all four sides, such as... Figure 2 As shown.

[0037] This device is a lifting device that can meet the hoisting requirements of existing large-size steel cage modules. It can not only ensure the integrity of the steel cage hoisting process, but also meet the hoisting requirements of the steel cage, thereby improving project quality, shortening the construction period, and reducing safety risks.

[0038] It should be noted that the terms such as "upper", "lower", "left", "right", "front", and "back" used in this utility model are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0039] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A lifting device for hoisting large-sized components, characterized in that: Includes a lifting frame, adjustable ropes, and four lifting supports; The lifting frame has a cross-shaped symmetrical structure, with lifting lugs fixed to the upper and lower surfaces of all four sides; The lifting frame has a cross-shaped symmetrical structure, with a lifting lug fixed at the center of the upper surface; The lifting frame is installed and connected inside the component. The lifting frame is located above the component. The lifting lugs on the four sides of the lower surface are connected to the lifting lugs of the four lifting frames through adjustable ropes. The lifting lugs on the four sides of the upper surface are connected to the lifting equipment through adjustable ropes. Alternatively, the lifting frame is located above the component. The lifting lugs on the four sides of the lower surface are directly connected to the component through adjustable ropes. The lifting lugs on the four sides of the upper surface are connected to the lifting equipment through adjustable ropes.

2. The lifting device for hoisting large-size components according to claim 1, characterized in that: The lifting frame has multiple lifting lugs on its four sides and upper and lower surfaces, and these multiple lifting lugs are distributed radially.

3. The lifting device for hoisting large-size components according to claim 1, characterized in that: The lifting frame consists of a long H-beam and two short H-beams. The short H-beams are shorter than the long H-beam, and the two short H-beams are fixed to the two side flanges in the middle of the long H-beam, forming the cross-shaped symmetrical structure.

4. The lifting device for hoisting large-size components according to claim 3, characterized in that: In the lifting frame, the upper and lower surfaces of the long H-beam are each provided with two stiffening ribs fixed thereto, which are located at the extensions of the short H-beam.

5. The lifting device for hoisting large-size components according to claim 3, characterized in that: In the lifting frame, each lifting lug has at least one stiffening rib on its inner side.

6. The lifting device for hoisting large-size components according to claim 1, characterized in that: The lifting support frame consists of one long support H-beam and two short support H-beams. The short support H-beams are shorter than the long support H-beams. The two short support H-beams are fixed to the two side flanges in the middle of the long support H-beams, forming the cross-shaped symmetrical structure.

7. The lifting device for hoisting large-size components according to claim 6, characterized in that: In the lifting frame, at least one stiffening rib is provided on both sides of the lifting lug.

8. The lifting device for hoisting large-size components according to claim 1, characterized in that: The adjustable rope is a steel wire rope or a flexible sling.

9. The lifting device for hoisting large-size components according to claim 1, characterized in that: The adjustable rope is equipped with a shackle at its end, which is used to connect to the lifting frame, lifting support, and lifting equipment.

10. The lifting device for hoisting large-size components according to claim 1, characterized in that: The center of the lower surface of the lifting frame is also fixed with a lifting lug.

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