Large-inside-diameter steel pipe inner wall derusting device for machining

Abstract

The invention discloses a large-inside-diameter steel pipe inner wall derusting device for machining. The device comprises a bottom plate, wherein a first shaft support is vertically and fixedly mounted on the bottom plate and is movably connected with a right end of a driving shaft; a first bevel gear is coaxially and fixedly mounted on the driving shaft; a second bevel gear is coaxially and fixedly mounted on an upper end of a driven shaft and is connected with the first bevel gear in a meshed manner; a rotating wheel is coaxially and fixedly mounted at a lower end of the driven shaft; a second shaft support is vertically and fixedly mounted on the bottom plate; a first connecting rod is horizontally arranged on the second shaft support in a horizontal sliding manner; a limiting roller is coaxially and fixedly mounted on the rotating shaft; a steel pipe for derusting is placed on the limiting roller; a derusting roller is fixedly mounted on the first connecting rod; steel wire brushes are uniformly arranged on a surface of the derusting roller; guiding wheels are fixedly mounted on the rotating roller in a sleeving manner and are pressed against an outer surface of the derusting roller. According to the device disclosed by the invention, axial and annular derusting effects on the inner wall of the steel pipe can be realized at the same time, so that the derusting effect on the inner wall of the steel pipe is preferable.

Description

technical field [0001] The invention relates to the technical field of mechanical processing, in particular to a rust removal device for the inner wall of a steel pipe with a large inner diameter used for mechanical processing. Background technique [0002] Steel pipes are used to transport fluids and powdery solids, exchange heat, and manufacture mechanical parts and containers. It is also a kind of economical steel. The development of steel pipe production technology began with the rise of the bicycle manufacturing industry, the development of petroleum in the early 19th century, the manufacture of ships, boilers, and aircraft during the two world wars, the manufacture of thermal power boilers after the Second World War, the development of the chemical industry and Drilling, production and transportation of oil and natural gas have strongly promoted the development of steel pipe industry in terms of variety, output and quality. Steel pipes can be divided into two categori...

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Problems solved by technology

[0003] Due to the limitation of steel pipe storage conditions, steel pipes will be corroded by oxides. Generally, steel pipe corrosion is chemical corrosion, and the speed is slow. After corrosion, a thin layer of porous brown rust is formed on the surface. It will slowly form perforation, so the steel pipe needs to be derusted before use to prevent the corrosion of the steel pipe from intensifying; and for the thick-walled steel pipe with a larger inner diameter, due to the larger inner surface area, the workload of rust removal is larger. The existing manual rust removal methods cannot meet the actual rust removal needs, and there is an urgent need for a large inner diameter steel pipe inner wall rust removal device for mechanical processing to improve the rust removal effect on the inner wall of large inner diameter steel pipes

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