Main rolling mill of two-roller cold rolling mill

Abstract

The invention relates to a main rolling mill of a two-roller cold rolling mill. The main rolling mill of the two-roller cold rolling mill comprises a prestress rack, a retainer and a roller device; the prestress rack comprises a rack base, a rack cover, a locking assembly, an upper sliding plate assembly and a lower sliding plate assembly, the rack base and the rack cover are locked through the locking assembly, and the upper sliding plate assembly and the lower sliding plate assembly are arranged on the upper portion and the lower portion in the prestress rack respectively; the retainer is used for mounting the roller device; the roller device comprises an upper roller and a lower roller, the upper roller can slide on the upper sliding plate assembly, and the lower roller can slide on the lower sliding plate assembly. The upper sliding plate assembly and the lower sliding plate assembly are arranged in the prestress rack, so that the roller device reciprocates to replace the whole prestress rack to reciprocate, the weight of a moving part is greatly reduced on the basis of ensuring large rolling capacity, the situation that a huge balance system needs to be used due to large dynamic load inertia is avoided, the equipment cost can be reduced, and the production energy consumption can also be reduced.

Description

technical field [0001] The invention belongs to the technical field of machinery manufacturing, and particularly relates to a main rolling mill of a two-roll cold-rolling tube mill. Background technique [0002] Generally speaking, the main rolling mill of the two-high cold rolling mill adopts a structure in which the roll box reciprocates in the rolling mill base. like figure 1 and figure 2 As shown in the main rolling mill of the cold rolling mill, a set of roll assembly is installed in the roll box, and the lower box body and the box cover are locked by four pre-tensioning rods. Slide back and forth. In a large cold rolling mill, in order to meet the demand of large rolling force, it is necessary to enhance the strength and rigidity of the roll box, resulting in a large overall weight of the roll box. When such a heavy roll box reciprocates, the dynamic load inertia is large, which requires a huge balancing system, which greatly increases the equipment cost and produ...

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a main rolling mill of a two-roller cold-rolled pipe mill to solve the problem of large dynamic inertia when the roll box reciprocates in the prior art and requires a huge balance system, which greatly increases equipment cost and production energy consumption. It is difficult to realize the rapid reciprocating motion of the roll box, which affects the technical problem of improving the rolling rhythm

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