Novel wringing roller changing device

Abstract

The invention discloses a novel wringing roller changing device. The novel wringing roller changing device comprises a shaft head fixing mechanism, a hoisting beam and a dragging mechanism driven by a crown block, wherein the shaft head fixing mechanism is fixedly installed on one end of the hoisting beam, and the other end of the hoisting beam is provided with a balancing weight; the dragging end of the dragging mechanism is connected with the hoisting beam; the shaft head fixing mechanism comprises a control rod, an upper clamping mold, a lower clamping mold, an upper clamping mold base and a lower clamping mold base, wherein the upper clamping mold base and the lower clamping mold base are arranged in parallel vertically; one ends of the upper clamping mold base and the lower clamping mold base are fixed on a support; the free end of the lower clamping mold base extends out of the edge of the free end of the upper clamping mold base; the lower surface of the free end of the upper clamping mold base is fixedly connected with the upper clamping mold which is provided with a semi-circular groove; the semi-circular groove is matched with the outer periphery surface of a shaft head of a wringing roller; the upper surface of the free end of the lower clamping mold base is fixedly connected with the lower clamping mold which is provided with another semi-circular groove; the another semi-circular groove is matched with the outer periphery surface of the shaft head of the wringing roller. According to the device, the roller changing efficiency is improved, and labor and material resources are saved.

Description

technical field [0001] The invention relates to the field of steel rolling machinery, in particular to a novel squeeze roll changing device. Background technique [0002] Squeeze rolls are important equipment for pickling strip steel in cold rolling mills. In cold rolling mills, it is necessary to replace worn and scratched squeeze rolls. The existing roll changing device is usually in the form of a full-circle sleeve. When changing the roll, first align the shaft head of the squeeze roller with the full-circle sleeve and insert it, and fix the shaft head of the squeeze roll with a set bolt. The reducer is used to adjust the position of the counterweight to change the center of gravity of the roller changing device to achieve balance, and finally the squeeze roller is pulled out. However, the roll changing device in the form of a full-circle sleeve requires multiple manual adjustments to insert the shaft head into the sleeve, and the set bolts only support a point on the ou...

AI Technical Summary

Problems solved by technology

However, the roll changing device in the form of a full-circle sleeve requires multiple manual adjustments to insert the shaft head into the sleeve, and the set bolts only withstand a point on the outer peripheral surface of the shaft head, which cannot fix the shaft head firmly. It is time-consuming and labor-intensive to adjust the counterweight by twisting the screw by the hand wheel

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