Dual-seal structure for pressure screw in short stress path rolling mill roller system

Abstract

The invention provides a dual-seal structure for a pressure screw in a short stress path rolling mill roller system. A supporting block is arranged on the outer side of the pressure screw, a guiding sleeve is arranged on the pressure screw and comprises a sleeve and an annular edge, and the pressure screw is sleeved with the sleeve; the annular edge is located at the lower end of the sleeve and perpendicular to the sleeve, the inner circumference of the annular edge coincides with the center line of the outer circumference of the sleeve, and the outer circumference of the annular edge is movably connected with the supporting block; the upper side of the annular edge is attached to the lower end of a second gland, the second gland is arranged between the guiding sleeve and the supporting block and comprises an annular panel, a first cylinder is arranged on the inner circumference of the panel, and a second cylinder is arranged below the first cylinder. By the adoption of the structure, solid fragments and dust can be effectively prevented from enters a matching face of the pressure screw in work, so that abrasion probability is reduced.

Description

Technical field [0001] The invention belongs to the technical field of short stress line rolling mills, and in particular relates to a double sealing structure for pressing screws in a roll system of a short stress line rolling mill. Background technique [0002] Such as figure 1 with figure 2 As shown, the short-stress line rolling mill in the prior art includes upper roll assembly 16, screw down 1, support block 2, and lower roll assembly 17. In the rolling process, water spray is required to cool the rolls. During the rolling process, water and scale If it may enter the first gland 18 and wear down the screw 1, so that the screw 1 will be scratched. Therefore, a dust ring 19 should be installed between the first gland 18 and the screw 1, and the A gland 18 is fixed on the support block 2 with a first screw 20 to prevent water and iron oxide from entering the first gland 18. However, because the dust ring 19 is thin, it is easily damaged during the installation process, which...

AI Technical Summary

Problems solved by technology

[0003] In view of this, the present invention aims to propose a double sealing structure scheme for the pressing screw in the short stress line rolling mill roll system to solve the problem of easy oxidation due to the thin dust ring and poor sealing during the rolling process in the prior art. The entry of leather, etc. causes wear on the mating surfaces of the first gland and the pressing screw, which in turn causes the rolling mill to fail.

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