CN203545544U - Electric lifting device - Google Patents

Abstract

The utility model relates to the construction field of large steel cylindrical shell engineering, in particular to an electric lifting device, which is characterized in that it includes a column, a lifting frame, an oblique support and an electric chain crane, and a plurality of columns are along the large steel cylindrical shell. The inner wall of the shell is arranged in a circle, the top of the column is provided with a lifting frame, and an electric chain hoist is provided on the lifting frame facing the inner wall of the shell, and the side of the column facing away from the shell is provided with an oblique support, and the bottom of the column and the oblique support are both It is connected with the bottom plate of the tank, and the lower part of the inner wall of the shell is provided with lifting lugs, and the hook of the electric chain crane is connected with the lifting lugs. Compared with the prior art, the utility model has the beneficial effects that: it satisfies the hoisting requirements of the construction site for large steel cylindrical shells, and can complete the installation work without using large hoisting equipment, which reduces the operating cost and labor intensity, It can improve the work efficiency by 2 to 3 times, ensuring the safety and quality of the installation work, especially suitable for the occasions where the construction work site is relatively small.

Description

An electric lifting device

technical field

The utility model relates to the engineering construction field of a large steel cylindrical shell, in particular to an electric lifting device.

Background technique

At present, with the rapid development of the steel structure industry, especially in the petroleum and chemical industries, thin-walled, large-diameter steel cylindrical cylinders are more and more widely used. The installation engineering construction of the steel cylindrical shell must use large hoisting equipment for operation. When the site is narrow and large-scale lifting facilities cannot be used, the conventional construction method cannot guarantee the safety of the operation. Therefore, in order to improve the efficiency and quality of the operation, a new topic is proposed for the improvement of the steel structure installation process.

Contents of the invention

The purpose of the utility model is to provide an electric lifting device, which can ensure the safety of the lifting operation of the large-scale steel cylindrical shell project, and is especially suitable for small and small places, reducing the operating cost and improving the operating efficiency.

In order to achieve the above object, the utility model is realized through the following technical solutions:

An electric lifting device, including a column, a lifting frame, an oblique support and an electric chain hoist. A plurality of columns are arranged along the circumference of the inner wall of a large steel cylindrical shell with a distance of 2 to 5 meters between the adjacent columns. The spacing is not greater than 300mm. There is a lifting frame on the top of the column, and an electric chain hoist is installed on the lifting frame facing the inner wall of the shell. The bottom of the inclined support is connected with the bottom plate of the tank, and the lower part of the inner wall of the shell is provided with lifting lugs, and the hook of the electric chain crane is connected with the lifting lugs.

A door frame is provided at the seam where the inner wall of the housing corresponds to the installation of the adjusting ring, and a jacking bolt is arranged on the door frame.

Compared with the prior art, the beneficial effects of the utility model are:

It meets the hoisting requirements of the construction site for large steel cylindrical shells, and the installation can be completed without the use of large hoisting equipment, which reduces operating costs and labor intensity, improves work efficiency by 2 to 3 times, and ensures the safety of installation operations and quality, especially suitable for occasions where the construction site is relatively small.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment;

Fig. 2 is a schematic diagram of the lifting operation of the utility model.

In the figure: 1-column 2-lifting frame 3-shell 4-slanting support 5-hanging lug 6-electric chain hoist 7-adjusting ring 8-gantry 9-top tightening bolt 10-reinforcing rib 11-tank bottom plate

Detailed ways

Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described in further detail.

See Fig. 1, which is a structural schematic diagram of an embodiment of an electric lifting device of the present invention, including a column 1, a lifting frame 2, an oblique support 4 and an electric chain hoist 6, and a plurality of columns 1 along a large steel cylindrical shell 3 The inner wall is arranged in a circle, and the adjacent distance is 2 to 5 meters. The distance between the column 1 and the inner wall of the shell 3 is not more than 300mm to reduce the bending moment during lifting. The top of the column 1 is equipped with a lifting frame 2, and the lifting frame 2 faces the inner wall of the shell. An electric chain hoist 6 is provided, and the column 1 is facing away from the shell side, and two oblique supports 4 are arranged symmetrically along the axis of the column to prevent the column from tilting and ensure its stability. Connected, measure the verticality of the column with a level ruler or a pendant. The column 1 is set on the flat place of the tank bottom plate 11. The tank bottom plate 11 and the bottom of the column should be firmly attached. The tank bottom plate 11 is provided with reinforcing ribs 10 to improve its strength. ; The lower part of the inner wall of the housing 3 is provided with lifting lugs 5 , and the hook of the electric chain hoist 6 is connected to the lifting lugs 5 .

The inner wall of the housing 3 is provided with a door frame 8 at the seam corresponding to the installation of the adjustment ring 7, and the door frame 8 is provided with a jacking bolt 9. When the ellipticity of the adjustment ring 7 is completed, the jacking bolt 9 is used for welding. The installation should be leveled with horizontal pipes to prevent deflection during lifting.

See Fig. 2, the power supply control of a plurality of electric chain hoists 6 in the utility model is connected on the same power switch, and each electric chain hoist 6 must have the same model, the synchronization rate is consistent, and the same manufacturer is qualified through inspection before it can be used. Realize one-button control and start lifting at the same time, try to be consistent in steps to ensure that the lifting speed is consistent in all directions, and at the same time when lifting, pay attention to check that the welding conditions of the lifting lugs 5 on the shell 3 and the column 1, the oblique support 4, and the tank bottom plate 11 are good , after the working conditions of each electric chain hoist 6 are confirmed to be safe and reliable, they can be promoted.

Claims (2)

1. An electric hoisting device, characterized in that, comprises a column, a lifting frame, an oblique support and an electric chain hoist, and a plurality of columns are arranged along the circumference of a large-scale steel cylindrical housing inner wall, with an adjacent spacing of 2 to 5 meters. The distance between the column and the inner wall of the shell is not more than 300mm. There is a lifting frame on the top of the column, and an electric chain hoist is installed on the lifting frame facing the inner wall of the shell. Diagonal support, the bottom of the column and the oblique support are connected to the bottom plate of the tank, and the lower part of the inner wall of the shell is provided with lifting lugs, and the hook of the electric chain crane is connected to the lifting lugs. 2 . The electric lifting device according to claim 1 , wherein a door frame is provided at the seam where the inner wall of the housing corresponds to the installation of the adjusting ring, and jacking bolts are provided on the door frame. 3 .

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