Device for automatically coating lubricants on hot-expanding seamless steel tubes

Abstract

The invention relates to a device for automatically coating lubricants on hot-expanding seamless steel tubes, comprising bases, a platform frame, tube holding mechanisms, a hydraulic lifting system and a rotating mechanism, wherein both ends of the platform frame are respectively connected with a rotating bracket and the hydraulic lifting system; a drive roller at the left side of the device is driven by a drive motor and drives steel tubes to rotate; the hydraulic lifting system is fixed on the ground with the base at the right side and lifts and inclines the right side of a platform by virtue of extension of a hydraulic cylinder; and both the left and right tube holding mechanisms are installed next to the rollers at both sides. The tube holding mechanisms are used for holding the rolling steel tubes and placing the steel tubes on the drive roller and a driven roller. The hydraulic lifting system is used for jacking up the platform frame to enable the steel tubes to incline a certain angle and then to be driven by the drive motor to rotate at constant speed. The lubricants are evenly distributed on the inner surfaces of the steel tubes, then the platform is restored, and the tube holding mechanisms are used for holding the steel tubes to roll out of the platform and enter a rack. Being adopted to produce the hot-expanding steel tubes, the device features high production efficiency and high yield, and can obtain high quality hot-expanding steel tubes with ultra-large apertures.

Description

technical field [0001] The invention relates to a pretreatment device before thermal expansion of thermal expansion steel pipes, in particular to an automatic lubricant coating device for thermal expansion seamless steel tubes. Background technique [0002] In modern industrial production, thermal expansion steel pipe is one of the production processes of large-diameter thin-walled steel pipes. It is characterized by simple procedures, short mold manufacturing and production cycles, and low production costs. Therefore, at present, many small and medium-sized manufacturers adopt the thermal expansion process to produce steel pipes, which greatly shortens the development and production cycle of new products, has low investment, quick results, low manufacturing costs, and is suitable for rapid market entry. In the production process of thermal expansion steel pipe, there will be extrusion friction between the mandrel and the steel pipe during the thermal expansion and diameter ...

AI Technical Summary

Problems solved by technology

The existing lubricants are applied manually, and the steel pipe is manually rotated to allow the lubricant to be adsorbed on the inner surface of the steel pipe, which often results in uneven and wasteful lubricant coating, as well as low production efficiency and high work intensity, so it is difficult to meet large The need for scale production and cost reduction

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