High-rigidity short stress path rolling mill

Abstract

The invention provides a high-rigidity short stress path rolling mill. According to the high-rigidity short stress path rolling mill, a working machine core is fixed to a movable base; the movable base is connected with a connecting shaft bracket by a hydraulic cylinder; a transverse shifting device is connected with the connecting shaft bracket by a pin shaft; the rolling mill core, the movable base and the connecting shaft bracket all slide on a fixed base; the whole machine line is locked by a locking device on the fixed base; an upper bearing block and a lower bearing block of a roll system device of the working machine core are connected into a whole by four pull rods; the pull rods are fixed to upright posts; the side faces of the upper and lower bearing blocks are clamped between the upright posts of the left and right sides; a guide and guard cross beam is of a box structure; a screw rod is hidden in the guide and guard cross beam; the guide and guard cross beam, an upper cross beam on the machine core and the upright posts form a frame structure. The high-rigidity short stress path rolling mill has the advantages that the integral rigidity is strong, the adjustment range of an opening degree is wide, the service life is long, and the adjustment is convenient.

Description

technical field [0001] The invention belongs to the technical field of hot-rolled long products, in particular to a high-rigidity short-stress-line rolling mill. Background technique [0002] The short stress line rolling mill is widely used in the field of hot rolling long products because of its high rigidity, quick replacement and many other advantages. The short stress line rolling mills designed by various manufacturers in the market have their own characteristics and can basically meet the general production needs. With the intensification of market competition, factors such as how to improve the precision of finished products, reduce the number of spare parts, and reduce the replacement time of the rolling mill have become the focus of the steel rolling workshop, especially the need for negative tolerance rolling puts forward stricter requirements on the rigidity of the rolling mill . [0003] There is a movable connection between the guide beam and the column of th...

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Problems solved by technology

[0003] There is a movable connection between the guide beam and the column of the traditional rolling mill. There are U-shaped bolt holes on the guide beam, which are connected to the column by four bolts. The advantage of this structure is that the guide beam can move up and down. The height of the guard seat can be adjusted up and down if there is a deviation in processing, but the frame on the operation side and the drive side are not rigidly connected, and the overall rigidity of the frame is poor. In some special production lines, due to the requirements of process layout, many different types of rolling mills are often configured, with poor interchangeability and high cost of spare parts

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