Cold drawing die for seamless steel pipe

Abstract

The invention relates to the technical field of mechanical dies and discloses a cold drawing die for a seamless steel pipe. The cold drawing die comprises a base. A fixing sleeve is fixedly connectedto the bottom of an inner cavity of the base, and a drive motor is fixedly connected to the middle of the fixing sleeve in a sleeved manner. An output shaft of the drive motor is fixedly connected with a drive bearing in a sleeved manner, and the outer edge of the drive bearing is engaged with the outer edge of a bearing gear. The side face of the bearing gear is fixedly connected with a supporting pillar, and the other end of the supporting pillar is movably connected to the side wall of the inner cavity of the base in a sleeving manner. The other side of the bearing gear is fixedly connectedwith a rolling gear. By means of the cold drawing die for the seamless steel pipe, due to connection of a liquid conveying pipe and a sprinkling head, it is ensured that the cold drawing die for theseamless steel pipe can achieve rapid cooling in the work process, fast machining of the steel pipe is assisted, and the phenomenon that due to the low cooling speed, people need to wait for steel cooling for a long time, meanwhile, the steel pipe is overheated, the workers can be scalded, and the machining efficiency of the seamless steel pipe is lowered can be avoided.

Description

technical field [0001] The invention relates to the technical field of mechanical molds, in particular to a cold drawing mold for seamless steel pipes. Background technique [0002] A steel pipe made of a single piece of metal with no seams on the surface is called a seamless steel pipe. According to the production method, seamless pipes are divided into hot-rolled pipes, cold-rolled pipes, cold-drawn pipes, extruded pipes, and jacking pipes. According to the cross-sectional shape, seamless steel tubes are divided into two types: round and special-shaped, and special-shaped tubes have various complex shapes such as square, oval, triangular, hexagonal, melon-shaped, star-shaped, and finned tubes. The maximum diameter is 650mm, and the minimum diameter is 0.3mm. Depending on the application, there are thick-walled tubes and thin-walled tubes. Seamless steel pipes are mainly used as petroleum geological drilling pipes, cracking pipes for petrochemical industry, boiler pipes,...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a cold-drawing die for seamless steel pipes, which has the advantages of fast cooling speed of steel pipes, high feeding efficiency, and simple operation, and solves the problem of slow cooling speed of steel pipes, reduced work efficiency, and slow feeding process. , it is difficult to continue to work, the operation is complicated, and the problem of increasing the difficulty of the user's work

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