Leveling device for flat steel belt of power station boiler and manufacturing method of leveling wheels

Abstract

The invention provides a leveling device for a flat steel belt of a power station boiler and a manufacturing method of leveling wheels, and aims to solve the problems that the surface of a flat steelstrip machined by an existing leveling device is too smooth and gaps among leveling wheels in the existing leveling device are inconvenient to adjust. The leveling device comprises leveling wheels, fixing frames and hydraulic systems, the leveling wheels comprise upper pressing wheels and lower pressing wheels, the upper pressing wheels are rotationally arranged on the fixing frames, piston rods of the hydraulic systems are connected with the fixing frames, the lower pressing wheels are located below the upper pressing wheels, and rolling pattern roads are arranged on the surfaces of the leveling wheels. The manufacturing method comprises the following steps of a, blanking; b, hardening and tempering; c, machining; d, knurling; and e, carrying out high-frequency quenching on the surface. According to the leveling device for the flat steel belt of the power station boiler and the manufacturing method of leveling wheels, the rolling pattern road are arranged on the surfaces of the leveling wheels, so that the surface of the leveled flat steel strip also has the rolling pattern roads, and the surface of the flat steel strip is prevented from being too smooth; and the upper pressing wheels of the leveling device are driven by the hydraulic systems to move up and down, so that adjustment on gaps among the upper pressing wheels and the lower pressing wheels is achieved, and the device is capable of adapting to leveling operation of flat steel strips with different sizes.

Description

Technical field: [0001] The invention relates to the field of processing flat steel strips of power plant boilers, in particular to a leveling device for flat steel strips of power plant boilers and a method for manufacturing the leveling wheels. Background technique: [0002] At present, the water-cooled wall components of domestic power plant boilers are generally welded by continuous welding of flat steel and steel pipes, and the outer surface is coated with a protective coating after welding. The flat steel used for welding needs to be leveled before welding. The surface of the leveling wheel of the existing flat steel leveling device is smooth. After leveling, the surface of the flat steel is too bright; and the surface of the steel needs to have a certain roughness, otherwise the surface coating is easy to fall off , causing corrosion. If sandblasting is used to treat the flat steel surface after leveling, due to size limitations, there are disadvantages such as diff...

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Problems solved by technology

[0003] In order to overcome the above-mentioned defects, the present invention provides a leveling device for a flat steel belt of a power station boiler and a method for making the leveling wheel. The first technical problem to be solved is that a knurled pattern is provided on the surface of the leveling wheel , which solves the technical problem that the surface of the flat steel strip processed by the existing leveling device is too smooth; the second technical problem to be solved is to solve the problem of the existing leveling device by setting the movable upper pressure wheel. The technical problem that the clearance of the center leveling wheel is not easy to adjust

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