A high-strength steel profile suitable for switch cabinets

Abstract

The invention relates to a high-strength steel sectional material suitable for a switch cabinet body. The high-strength steel sectional material comprises a rectangular sectional material formed by a steel plate rolling mill, wherein a first U-shaped bending part and a second U-shaped bending part are mutually occluded and formed at the closed part of the rectangular sectional material, a plurality of circular installing holes are formed in the installing surface of the rectangular sectional material, an anti-dropping device is arranged at the rear part of the first U-shaped bending part, a stretching device inwards stretches from the inner sides of the circular installing holes, upper reinforcing ribs are arranged on the surface opposite to the closed part of the rectangular sectional material, and lower reinforcing ribs are arranged on the surface which is identical to the closed part of the rectangular sectional material. The high-strength steel sectional material has the advantages that the anti-drop device is arranged at the closed part of the rectangular steel sectional material, so that a connecting part of the sectional material cannot drop when the sectional material is extruded; the stretching device stretches from the inner sides of the circular installing holes, so that the installing reliability of fastening bolts is ensured; the strength of the sectional material is further improved due to the upper reinforcing ribs and the lower reinforcing ribs, so that the dynamic stability and the cabinet strength are improved, and the requirements of high strength and dynamic stabilizing power can be met.

Description

technical field [0001] The invention relates to the field of manufacturing medium and low voltage switch cabinets, in particular to a high-strength steel profile suitable for switch cabinets. Background technique [0002] With the development of domestic power distribution technology, there are many kinds of existing steel profiles, the most typical ones are the C-shaped steel designed and developed by ABB Company and a variety of special-shaped C-shaped steels developed on the basis of this steel profile. The steel of this structure Profiles are widely used, with simple structure, flexible combination and convenient installation. [0003] However, due to the simple structure of this steel profile, its rigidity and strength after combination are poor, and the load capacity after forming a cabinet is limited, especially after a large number of power distribution cabinets used in primary power equipment, due to its poor dynamic stability, the strength of the cabinet is also lo...

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Problems solved by technology

[0003] However, due to the simple structure of this steel profile, its rigidity and strength after combination are poor, and the load capacity after forming a cabinet is limited, especially after a large number of power distribution cabinets used in primary power equipment, due to its poor dynamic stability, the strength of the cabinet is also low. Not enough, so it cannot meet the requirements of high-intensity dynamic stability

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