A cross wedge rolling mill for large axle rapid replacement of roll die

Abstract

The invention relates to the technical field of plastic forming equipment for shaft parts, in particular to a cross wedge rolling mill for rapid replacement of roll moulds for large axles. It includes the main transmission device, the arch, the worm gear and the worm, the roller system assembly and the guide device, and the two end surfaces of the upper roller are arranged as inclined surfaces corresponding to the inclined end surface of the upper transmission side and the inclined end surface of the upper non-transmission side, The two end surfaces of the lower roller are arranged as inclined surfaces corresponding to the inclined end surface of the lower transmission side and the inclined end surface of the lower non-transmission side. Multiple connecting bolts. In the present invention, the lower transmission side inclined end face and the lower non-transmission side inclined end face are detachably connected to the lower roller, and the upper transmission side inclined end face and the upper non-transmission side inclined end face are detachably connected to the upper roller, so that the upper roller and the upper roller can be detachably connected. The rapid disassembly of the drum can realize the rapid transfer and installation of the roll, meet the requirements of rapid replacement of the mold, and increase the flexibility of rolling.

Description

technical field [0001] The invention relates to the technical field of plastic forming equipment for shaft parts, in particular to a cross wedge rolling mill for rapid replacement of roll moulds for large axles. Background technique [0002] Large axles are core components in the fields of high-speed rail, rail transit, and large-scale construction machinery, and demand is increasing day by day. However, the traditional large-scale shaft parts are mainly prepared by fast forging machine and precision forging machine. The fast forging process requires human intervention, the production cycle is long, the product precision is low, the energy consumption is high, and the efficiency is low. The subsequent production process requires heavy lifting The amount of cutting is large, and the metal flow line on the surface of the product is greatly damaged, which reduces the mechanical properties of the product; the precision forging machine is completely monopolized by foreign compani...

AI Technical Summary

Problems solved by technology

However, for the equipment of large axle cross wedge rolling mill, since the diameter of the roll is 1800mm, the rolling force can reach Max820 tons, and the maximum width of the mold can reach 2900mm, resulting in huge size and weight of the roll mold. If the traditional structure and mold are still used The replacement method takes a long time, and the labor intensity of the workers is huge, which makes it difficult to meet the production rhythm requirements, which greatly affects the use effect of the large axle cross wedge rolling mill

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