Top-rod separating device for perforating seamless steel pipe

Abstract

The invention provides a top-rod separating device for perforating a seamless steel pipe. The top-rod separating device comprises a closed V-shaped pinch chain group, an opening and closing mechanism, a lifting device and a transmission device, wherein the opening and closing mechanism is used for controlling the closed V-shaped pinch chain group; the lifting device comprises a spiral lifting machine, an alternating-current variable-frequency speed reducing motor and an adjusting bracket; the alternating-current variable-frequency speed reducing motor drives the spiral lifting machine to drive the adjusting bracket to lift and fall so as to adjust the position of the top-rod separating device for clamping the working center line; the transmission device comprises a two-output-shaft speed reducing box, universal joint shafts and an alternating-current variable-frequency motor; and the alternating-current variable-frequency motor drives the two-output-shaft speed reducing box to drive the universal joint shafts and accelerate the pinch chain group to set speed, so that a top rod is pulled out of a rough pipe. The top-rod separating device provided by the invention has the advantages that the top rod can be reliably separated from the rough pipe, so that the time for replacing a top head and the top rod is saved and further the requirement for high-efficiency perforation production of the seamless steel pipe is improved.

Description

technical field [0001] The invention belongs to the technical field of equipment for producing seamless steel pipes by hot rolling, and relates to a seamless steel pipe piercing and ejector rod device, in particular to a seamless steel pipe piercing and ejector rod used in the process of offline replacement of ejector rods in the background of a seamless steel pipe piercing machine device. Background technique [0002] In modern seamless steel pipe production, for The production rhythm of the unit is positioned at 120 pieces / hour, and some have reached 150 pieces / hour. The traditional on-line replacement process and equipment for the back-end of the piercing machine can no longer meet the production requirements. Instead, the off-line replacement process for the back-end of the piercing machine, that is, the large-cycle process of the top and the top, can meet the rolling rhythm at 150 A high-paced, high-capacity piercing unit with more than one piece per hour. [0003] ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of extracting the ejector head from the capillary tube in the large circulation process of the ejector pin, and to provide an efficient, fast and stable seamless steel pipe piercing and ejector device

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