Hoisting device for hoisting generator stator

Abstract

The utility model provides a hoisting device for hoisting a generator stator, which relates to the technical field of hoisting and comprises cross beams and a connecting beam arranged between the cross beams, the cross beams and the connecting beam form a rectangular hoisting frame, hoisting pull plates are arranged at the bottoms of two ends of the cross beams, and the hoisting pull plates are connected with the cross beams. The hoisting pulling plate is provided with a lug hole used for being connected with a generator stator, and anchorage devices are arranged close to the two ends of the cross beam. The cross beams and the connecting beams are arranged, the cross beams and the connecting beams are combined to form the rectangular hoisting frame, the connecting beams are located between the cross beams, so that the overall connecting strength can be improved, the effect of higher firmness is achieved, and the hoisting pulling plates are arranged at the bottoms of the cross beams and used for installing a generator stator. Anchorage devices are further arranged at the four corners of the cross beam and used for penetrating and pulling steel strands so that the cross beam can be conveniently connected with an existing lifting device, and through cooperation of the cross beam, the connecting beams, the anchorage devices and the lifting pulling plates, the stability of the process of lifting the generator stator is improved, and stress uniformity is guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of hoisting, and more specifically, to a hoisting device for hoisting generator stators. Background Technology

[0002] The generator stator is the heaviest and most precise piece of equipment in a thermal power generating unit, and it is typically installed using large machinery. However, due to site limitations, the installation of generator stators and other equipment often employs a combination of overhead cranes and hydraulic lifting devices. The safe and successful installation of these large components is crucial during generator unit installation and receives significant attention from all parties on site. The generator stator and other large equipment are heavy and bulky; directly using a large crane would incur high overall costs. Furthermore, existing lifting tools often result in uneven stress distribution during stator lifting, increasing the risk of errors and potential placement difficulties, while also posing significant safety risks. Utility Model Content

[0003] The purpose of this utility model is to provide a hoisting device for generator stator hoisting, so as to achieve the technical effect of more uniform force on generator stator during the hoisting process, and improve the stability and safety of operation.

[0004] This utility model is achieved through the following technical solution: it includes a crossbeam and a connecting beam disposed between the crossbeams, the crossbeams and the connecting beams forming a rectangular hoisting frame, hoisting pull plates are provided at the bottom of both ends of the crossbeams, the hoisting pull plates are provided with lugs for connecting with the generator stator, and anchors are also provided near both ends of the crossbeams.

[0005] To better realize this utility model, further, both ends of the connecting beam pass through the side of the crossbeam and are connected to the crossbeam. The connecting beam includes multiple connecting plates, and an mounting plate is provided between adjacent connecting plates. The mounting plate and the connecting plate are fastened together by bolts.

[0006] To better realize this utility model, the crossbeam further includes two horizontal plates with a gap between them. The two ends of the connecting beam are placed in the gap. A top plate is fixedly installed above the two ends of the horizontal plates, and a bottom plate is fixedly installed below the two ends of the horizontal plates.

[0007] To better realize this utility model, the anchor includes an upper anchor head and a lower anchor head. The upper anchor head is installed on the top plate, and the lower anchor head is installed on the bottom plate. The center lines of the upper anchor head and the lower anchor head are the same, and both the upper anchor head and the lower anchor head are provided with a plurality of anchor holes.

[0008] To better realize this utility model, a reinforcing plate is further provided between the lower anchor head and the base plate.

[0009] To better realize this utility model, the lifting plate is further located at the end of the base plate, the base plate is also provided with mounting ears, the top of the lifting plate is provided with mounting holes and bolts, and the lifting plate is fixedly connected to the mounting ears, the ear holes are located near the bottom of the lifting plate.

[0010] To better realize this utility model, the lifting plate is further provided with a reinforcing ring, which is located on the outer periphery of the mounting hole and the ear hole.

[0011] The beneficial effects of this utility model are:

[0012] This utility model incorporates a crossbeam and connecting beams, which together form a rectangular hoisting frame. Multiple connecting beams are positioned between the crossbeams to enhance overall connection strength and achieve greater stability. A hoisting pull plate is installed at the bottom of the crossbeam for installing the generator stator. Anchors are also installed at the four corners of the crossbeam for threading steel strands, facilitating connection with existing hoisting devices. Through the synergy of the crossbeam, connecting beams, anchors, and hoisting pull plates, the stability of the generator stator hoisting process is improved, ensuring uniform stress distribution, thereby enhancing the installation operation. Attached Figure Description

[0013] To more clearly illustrate the technical solution of this utility model, the drawings used in this utility model will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0014] Figure 1 Schematic diagram of the hoisting device for generator stator hoisting provided by this utility model Figure 1 ;

[0015] Figure 2 Schematic diagram of the hoisting device for generator stator hoisting provided by this utility model Figure 2 ;

[0016] Figure 3 A schematic diagram of the connecting beam provided by this utility model;

[0017] Figure 4 This is a structural schematic diagram of the hoisting pull plate provided by this utility model;

[0018] icon:

[0019] 10-Crossbeam, 11-Crossplate, 12-Top plate, 13-Bottom plate, 14-Upper anchor head, 15-Lower anchor head, 16-Reinforcing plate, 17-Mounting ear, 20-Connecting beam, 21-Connecting plate, 22-Mounting plate, 30-Lifting pull plate, 31-Ear hole, 32-Mounting hole, 33-Reinforcing ring. Detailed Implementation

[0020] The technical solution of this utility model will now be described with reference to the accompanying drawings.

[0021] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this utility model, terms such as "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0022] Please refer to Figures 1-4 This utility model provides a hoisting device for hoisting generator stators. In the prior art, when hoisting generator stators, hoisting equipment is needed to install the stator and then lift it using a hydraulic lifting device. When hoisting generator stators, existing hoisting equipment is prone to uneven stress, insufficient strength and rigidity, and damage to the generator due to insufficient load-bearing capacity, because the stator is a large piece of equipment with a large volume and weight. To solve the above technical problems, this utility model optimizes the design structure to meet the stress, strength and rigidity requirements of large equipment such as generator stators during hoisting, thereby improving the stability and safety of the hoisting process.

[0023] It mainly includes two crossbeams 10 and a connecting beam 20 disposed between the two crossbeams 10, forming a rectangular hoisting frame, as shown in the figure. There are multiple connecting beams 20, and in this embodiment there are 6 connecting beams 20, which are installed in parallel. Each connecting beam 20 is composed of multiple connecting plates 21, which are I-shaped. In this embodiment there are 4 connecting plates 21. The two connecting plates 21 are connected by a mounting plate 22. Specifically, the mounting plate 22 is located at both ends of the two connecting beams 20, and the mounting plate 22 and the connecting plate 21 are fixedly connected with bolts to form the connecting beam 20. The end of the connecting beam 20 is placed inside the crossbeam 10.

[0024] The crossbeam 10 includes two horizontal plates 11, which are spaced apart. A top plate 12 is fixedly installed at the top of both ends of the horizontal plates 11, and a bottom plate 13 is fixedly installed at the bottom of both ends of the horizontal plates 11. The anchor includes an upper anchor head 14 and a lower anchor head 15. The upper anchor head 14 is fixedly installed on the top plate 12, and the lower anchor head 15 is fixedly installed on the bottom plate 13. In order to enhance stability and uniformity of connection, a reinforcing plate 16 is also provided between the lower anchor head 15 and the bottom plate 13. The axis of the upper anchor head 14 and the lower anchor head 15 are the same after installation.

[0025] A mounting lug 17 is provided at the bottom of the crossbeam 10. The lifting plate 30 is connected to the bottom of the crossbeam 10 through the mounting lug 17. Specifically, a mounting hole 32 is provided on the lifting plate 30, and the mounting lug 17 and the top pin of the lifting plate 30 are connected by bolts. In order to strengthen the force of the lifting device, a mounting ring is also provided on the lifting plate 30. The mounting ring is located on the outer periphery of the mounting hole 32.

[0026] The workflow of this utility model is as follows:

[0027] The crossbeam 10 and the connecting beam 20 are assembled into a rectangular hoisting frame. The upper anchor head 14 and the lower anchor head 15 are installed at both ends of the crossbeam 10. Hoisting pull plates 30 are set at the bottom of both ends of the crossbeam 10 to form a hoisting device.

[0028] The assembled hoisting device is moved above the generator stator and horizontally suspended from the fixed frame of the lifting device (the lifting device is an existing device) using a hoist. The ear holes 31 at the lower part of the hoisting pull plate 30 are fitted onto the generator stator hoisting plate and initially fixed. The four hoisting pull plates 30 can be located around the generator stator for a more secure installation. The ear holes 31 at the upper part of the hoisting pull plate 30 are connected to the mounting ears 17 below the crossbeam 10 with pins. The steel strands are threaded through, the cover plate of the lower anchor head 15 is tightened, and the pre-tension of the hoisting steel strands is adjusted to ensure that the tension of the left and right steel strands is consistent. The anchor is located at the four corners of the rectangular hoisting frame, so that the force is more evenly distributed during the lifting process. The generator stator is lifted using a hydraulic lifting device. The hoisting device provided by this utility model is more stable when installing the generator stator and the force is more even when lifting the generator stator, thus improving the stability and safety of the generator stator transfer process.

[0029] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A hoisting device for hoisting a generator stator, characterized in that, It includes a crossbeam (10) and a connecting beam (20) disposed between the crossbeams (10). The crossbeams (10) and the connecting beams (20) form a rectangular hoisting frame. Hoisting pull plates (30) are provided at the bottom of both ends of the crossbeams (10). The hoisting pull plates (30) are provided with lugs (31) for connecting with the generator stator. Anchors are also provided near both ends of the crossbeams (10).

2. The hoisting device for hoisting a generator stator according to claim 1, characterized in that, The two ends of the connecting beam (20) pass through the side of the crossbeam (10) and are connected to the crossbeam (10). The connecting beam (20) includes a plurality of connecting plates (21). An mounting plate (22) is provided between adjacent connecting plates (21). The mounting plate (22) is fastened to the connecting plate (21) by bolts.

3. The hoisting device for hoisting a generator stator according to claim 2, characterized in that, The crossbeam (10) includes two cross plates (11) with a gap between them. The two ends of the connecting beam (20) are placed in the gap. A top plate (12) is fixedly installed above the two ends of the cross plates (11), and a bottom plate (13) is fixedly installed below the two ends of the cross plates (11).

4. The hoisting arrangement for hoisting a generator stator according to claim 3, characterized in that, The anchor includes an upper anchor head (14) and a lower anchor head (15). The upper anchor head (14) is installed on the top plate (12), and the lower anchor head (15) is installed on the bottom plate (13). The center lines of the upper anchor head (14) and the lower anchor head (15) are the same. Both the upper anchor head (14) and the lower anchor head (15) are provided with a number of anchor holes.

5. The hoisting device for hoisting a generator stator according to claim 4, characterized in that, A reinforcing plate (16) is also provided between the lower anchor head (15) and the base plate (13).

6. The hoisting arrangement for hoisting a generator stator according to claim 5, characterized in that, The lifting plate (30) is located at the end of the base plate (13). The base plate (13) is also provided with mounting ears (17). The top of the lifting plate (30) is provided with mounting holes (32) and bolts are also provided to fix the lifting plate (30) and the mounting ears (17) together. The ear holes (31) are located near the bottom of the lifting plate (30).

7. The hoisting arrangement for hoisting a generator stator according to claim 6, characterized in that, The lifting plate (30) is also provided with a reinforcing ring (33), which is located on the outer periphery of the mounting hole (32) and the ear hole (31).

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