Hot-rolled inequilateral channel steel and application thereof

Abstract

The invention relates to hot-rolled inequilateral channel steel. The hot-rolled inequilateral channel steel comprises a web and wing plates, wherein the wing plates comprise a first wing plate and a second wing plate; two ends of the web are connected with the first wing plate and the second wing plate respectively; the first wing plate and the second wing plate are located on the same side of the web, are parallel to each other and perpendicular to the web; and the height of the first wing plate is larger than that of the second wing plate. According to the hot-rolled inequilateral channel steel, the first wing plate and the second wing plate adopt an inequilateral design, the first wing plate is higher than the second wing plate by 5-30 mm, so that in combination production of a forklift truck gantry and under the same bearing capacity, steel material consumption is reduced, dead weight of a gantry system is reduced wholly, and the manufacturing cost of the gantry is reduced; and meanwhile, due to the inequilateral channel steel design, the inequilateral channel steel is attractive in appearance, not easy to deform and higher in bending resistibility, stable running of the roller is guaranteed, friction period between the roller and section steel is prolonged, and the service life of the channel steel is prolonged.

Description

technical field [0001] The invention relates to a special-shaped steel, in particular to a hot-rolled unequal-sided channel steel, and belongs to the technical field of hot-rolled section steel. Background technique [0002] As an industrial transport vehicle, the working device of the forklift is mainly composed of inner and outer gantry. When the gantry is forklifting goods and lifting, the front axle is the centroid and generates a large overturning moment, so the forklift gantry is the The most important force-bearing component in the work, the forklift gantry section steel is cut from a plate and then welded. The welded section steel is welded by the wing plate and the web. Since the forklift lifting system needs to bear large and periodic loads during the use process, it has high requirements on the strength, section size, shape straightness and flatness of the profile steel. There are the following disadvantages: 1. Welded steel needs to use complex equipment and cum...

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Problems solved by technology

At present, the steel sections suitable for forklift masts include hot-rolled C-shaped, H-shaped and J-shaped steels. In some forklift manufacturers, hot-rolled steels are gradually used to replace the original welded steels. C-shaped steels include webs and a pair of wings. However, limited by the production capacity of hot-rolled steel production enterprises, the C-shaped steel used for forklift masts is equal-sided channel steel, that is, the length of a pair of wing plates of C-shaped steel is the same. Since the length of a pair of wing plates of C-shaped steel is the same, The amount of C-shaped steel used in the manufacture of forklift masts is large, the manufactured mast system is heavy and the production cost is high

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