Novel roll gap adjusting device of short-stress-path rolling mill

Abstract

The invention relates to the technical field of metallurgy rolling, in particular to a novel roll gap adjusting device of a short-stress-path rolling mill, wherein the roll gap adjusting device of the short-stress-path rolling mill is simple in structure and smooth in operation. The roll gap adjusting device of the short-stress-path rolling mill is composed of a roll system device, a draw rod device and a screw-down device which is used a straight gear as an output gear. The draw rod device comprises a draw rod. The draw rod is provided with an adjusting nut. A pressure-bearing sleeve is arranged on the lower portion of the adjusting nut. A ball face cushion is arranged on the lower portion of the pressure-bearing sleeve. A pressure-bearing flange is arranged on the lower portion of the ball face cushion. A locking pin is arranged on the adjusting nut. The locking pin is provided with a tooth-shaped head. The roll gap adjusting device of the short-stress-path rolling mill is simple in structure, smooth in operation, convenient to install and maintain.

Description

technical field [0001] The invention relates to the technical field of metallurgical rolling, in particular to a novel roll gap adjustment device for a short stress line rolling mill with simple structure and smooth operation. Background technique [0002] The roll gap adjustment device of the short stress line rolling mill usually consists of a pressing device, a tie rod device, and a roll system device. The pressing device mainly includes a hydraulic motor and a reduction box; the tie rod device mainly includes a tie rod, an adjusting nut, a locking pin, a pressure sleeve, a spherical pad, a pressure flange, and a support seat; the roll system device mainly includes a roll and a bearing seat. Working principle: Driven by a hydraulic motor, the power is transmitted to four pull rods through a reduction box. When the pull rods (the upper and lower ends of the pull rods are processed with left and right helical threads) rotate, the upper and lower bearing seats are driven by ...

AI Technical Summary

Problems solved by technology

Because the gear box of the pressing device of the existing roll gap adjustment device adopts bevel gear output, the rotation direction of the output on the left and right sides is opposite, so that the rotation direction of the matching left and right side pull rods and adjustment nuts is opposite, increasing the The number of spare parts for tie rods and adjusting nuts, and the installation accuracy of the bevel gear shafts on the left and right sides are not easy to ensure, and installation and maintenance are inconvenient; the adjusting nuts in the tie rod device are fixed with cylindrical pins, which causes over-constraint, increases harmful stress, and affects the smoothness of the equipment run

Images