Roller device with adjuster device

Abstract

The invention relates to a roller device (1) comprising a stand with support posts (2, 12, 33), wherein at least one roller (3, 13) of the roller stand is arranged in the space between the support posts and at least one adjuster device (5, 10, 30) is provided for adjusting the rollers (3), wherein the at least one adjuster device (5, 10, 30) is arranged between the rollers (3, 13) and the support posts (2, 2a, 2b, 2c, 2d, 12, 33) and comprises a pressure medium adjuster body (14, 23, 34).

Description

TECHNICAL FIELD[0001]The invention concerns a rolling installation with an adjusting device, especially for adjusting a horizontal displacement of a roll of the rolling installation, especially in accordance with the preamble of claim 1.PRIOR ART[0002]Rolling installations or roll stands are sufficiently well known in the prior art. In this regard, roll stands are known in which a horizontal displacement of a work roll relative to the adjacent backup rolls is undertaken as horizontal stabilization. This is especially necessary if different pass programs are to be run with the rolling installation. In this regard, well-known adjusting devices include adjusting transmission elements, hydraulic cylinders, and displaceable wedges for making wedge adjustments. Adjusting devices with wedges are disclosed, for example, by DE 17 770 54 A. EP 0 154 896 B1 discloses both hydraulic cylinders and mechanical adjusting transmissions.[0003]Where the mechanical adjusting devices are concerned, it i...

AI Technical Summary

Benefits of technology

"The present invention is a rolling installation that aims to improve upon previous designs. It includes a stand with housing uprights and a roll between the uprights. An adjusting device is provided to adjust the roll, which includes a pressure-medium control element. The pressure-medium control element can be a hydraulic actuator with a piston / cylinder unit. The piston / cylinder unit can have a piston that moves perpendicular to the roll axis or parallel to it. The adjusting device can have two pressure chambers and a piston rod that acts on the roll directly or indirectly. The position of the piston can be detected by a sensor. The technical effects of this invention are improved efficiency and control of the rolling process."

Problems solved by technology

Where the mechanical adjusting devices are concerned, it is a disadvantage, for one thing, that the devices lose the adjusted position, i.e., the adjusted position becomes displaced in the course of operation.

This has the disadvantage that it occurs in adjusting devices with integrated transmissions, because there is no self-locking of the gears or a brake, so that a shift in position takes place under a load.

This also means that the sensor or detector that is used for monitoring loses its absolute position.

Moreover, where rolling installations with transmissions are concerned, relatively large amounts of space are provided for the transmissions in the mill housings, and therefore the installations turn out to be very large and heavy.

The required installation space is also relatively large.

In this connection, it can also occur that the adjusting wedges are pulled out too far during startup and thus lose contact with the region to be shifted.

This also causes the detector to lose its position, and exact position control can no longer take place.

Typically, the wedges extend far from the roll stand region on the drive side and the operating side, so that once again this is unfavorable for the roll-changing equipment and requires a relatively large amount of cladding.

This is also associated with increased expense and is therefore a disadvantage.

Images