SU1225626A1 - Working stand of continuous rolling mill - Google Patents

Description

The invention relates to the processing of metals by pressure, in particular to a photofinishing film, and can most effectively be used in continuous hot and cold rolling mills for pipes and rods.

The purpose of the invention is to increase the durability of the rolls, increase the accuracy of rolling and productivity by prestressing the cage elements by mutually axial movement of the semi-hulls without turning them against each other and thereby supporting each work roll to two supporting ones.

FIG. 1 shows a working cell of a continuous rolling mill, side view; in fig. 2 shows a section A-A in FIG. in fig. 3 shows a section BB in FIG. 2 ..

The working stand of the continuous rolling mill contains two semi-bodies 1 and 2, which are included one into the other, with the first semi-body 1 fixedly mounted on the frame, and the second semi-body 2 can move in the axial direction. The semi-bodies on both sides of the work rolls have support rolls 3, on the flanges 4 of which the work rolls 6 are supported with their pivots 5. The fixing screws 7, rotated by the mechanical gear 8 and 9, are fixed between the fixed-motion and movable semi-arm for rotation.

A wedge 10 is mounted on the outer end surface of the fixed semi-hull, working over the top.

H

which are turned to the mobile semi-hull. On the outer groove of the pit semi-hull there is a rotating ring It, at the end of which there are wedges 12, which form wedge pairs with reciprocal wedges 10. Rotate the ring by means of a mechanical transmission 13. There are semi-hull

windows 14.

The device works as follows.

With the aid of clamping screws 7, the working 6 and supporting 3 rolls are set to the predetermined size of the caliber. By rotating the ring 11, wedges 10 and 12 are brought into contact. Thereafter, a pre-stress of

equal or greater rolling force. An insignificant change in the magnitude of the prestressing force can be made by means of wedges, moving them in one direction or another by rotating the ring 11.

During handling of the working tool, the movable body is retracted by means of clamping screws and the work rolls are replaced through the windows 14.

The proposed design of the working stand of the continuous longitudinal rolling mill provides the possibility of creating prestressing and adjusting the size of the gauge by reciprocally moving the semi-bodies without their rotation relative to each other.

Editor V. Petrash

Order 2019/7 Circulation 518 Subscription

VNIIPI USSR State Committee

on Inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, Projecto st., 4

Compiled by B. Beinfest

Tehred G.Gerber Proofreader S.Shekmar

Claims (1)

A WORKING CELL OF THE CONTINUOUS ROLLING MACHINE, including work and backup rolls located in a cylindrical housing consisting of two half-bodies that are included in one another with the possibility of mutual axial movement, located on both sides of the work rolls and equipped with means of such movement, characterized in that, with the aim of increasing the roll resistance, increasing the accuracy of rolling and productivity by prestressing the stand elements due to the mutual axial movement of the half-shells without turning them relative separable from each other and thereby the possibility of supporting each work roll on two support, the means for moving the half-shells are made in the form of a ring wrapping the body with the possibility of rotation g relative to one of the half-shells., and wedges placed on the end surface of the ring and interacting with the reciprocal wedges placed at the end of the second half-hull. L Fig!