DE1045952B - Vertical roll stand - Google Patents

Description

Vertical roll stand The invention relates to a vertical roll stand with a frame accommodating the rollers, which is in vertical guide posts Direction adjustable and arranged to be retracted and extended laterally on a track is, the journals of the rollers rotatably by a plug connection with the heads are connected by articulated spindles, which in turn are non-rotatable, but displaceable longitudinally in the hollow comb rollers of a comb roller stand arranged in a stationary manner under the rollers are used. It is known to extend the frame laterally, the vertical Coupling spindles for the purpose of loosening a counter-holding device that absorbs their weight Uncoupling of the plug-in connection, after the frame has been lifted and lowerable carrier, namely pressure spindles, moved into a lowermost expansion position is. At the height of the expansion position, a side platform is arranged on which the frame can be pushed over and transported away.

The relative movement between the coupling spindle and the roll neck or frame for decoupling required in the known vertical scaffolding for the possibility of vertical movement the coupling spindle has a relatively large stroke and thus a long guide in the hollow comb rollers, since the stroke is made up of the adjustment stroke for Caliber adjustment plus the stroke for uncoupling.

This disadvantage arises from the fact that the expansion position of the frame at the same time is its lower end position, so the adjustment stroke should ideally start there can. In addition, it is difficult to move the with a counter holding device Coupling spindles for themselves, downwards for uncoupling and upwards for coupling, to execute. In the interest of a quick and mechanical implementation of these coupling processes it would be conceivable to have a special drive for the controlled raising and lowering of the coupling spindles to provide what would be equivalent to a second lifting and lowering drive for the roll stand.

The invention has the object of a vertical roll stand the type described above to avoid the additional stroke of the coupling spindles. This is achieved in that the frame receiving the rollers in a known manner rests on raisable and lowerable carriers and the carrier until uncoupling of the connector are liftable. With regard to the coupling, this is to be understood as meaning that the Coupling takes place by lowering the frame, which was previously retracted in a higher position. In this way, the lifting and lowering drive is used to set the roller caliber for exploited the coupling processes; this stroke is always so large that it has the required Includes hub for coupling. This increases the overall height for what is located under the rollers Combed roll stand saved. In addition, there is a controllable lifting and lowering drive avoided.

In the drawing is an exemplary embodiment of the subject matter of the invention a horizontal-vertical stand, set up as a vertical stand, is shown.

With 13 and 14 are the horizontal, uncoupled in the embodiment horizontal coupling spindles.

With the rolls in a vertical position, the drive goes through the horizontal shaft 17, the bevel gears 18, 19 and the vertical shaft 20 to the spur gears 21, 22 and the pinion rolls 23, 24 of the pinion stand, which is stationary below the floor. The vertical coupling spindles 26, 27 with coupling connections (not shown individually), which are mounted in the comb roller stand, are driven in opposite directions by the comb rollers, since they are non-rotatably but longitudinally displaceable in the hollow comb rollers.

The rolls 30/31 are accommodated in the frame 32, known per se in vertical stands, which also contains the chocks and the guiding and adjusting devices and has to absorb the rolling pressures that occur during rolling.

On one outer side of the frame 32, the coupling sleeves 33 and 34 , which are connected to the shafts of the rollers 30 and 31 , are arranged. On the opposite and on the adjacent outside of the frame 32 , the pairs of wheels 35 and 36 are attached, with the aid of which the frame 32 can be retracted and extended on the rails 37.

The frame 32 is vertically changed in its position by means of the pressure spindles 39 and 40 actuated by the motor 38 so that any of the calibres cut into the rolls can be brought exactly into the rolling plane. The coupling spindles go along with this. If the coupling spindles 26, 27 are to be loosened at their articulated heads 33, 34 for the purpose of expanding the frame 32, this is done by lifting the frame 32 together with the rails 37 in the roll stand 25 and supporting the frame up to the level of the lateral exit track by means of the Pressure spindles 39, 40, the articulated spindles 26, 27 remaining in a lower position. Then the frame can be extended to the side.

Conversely, the coupling spindles are coupled by lowering the frame 32, which was previously retracted in a higher position than the ends of the coupling spindles. In any case, the pressure spindles 39, 40 required for setting the calibres on the rolling line are used to raise and lower the frame 32.

Claims (1)

PATENT CLAIM: Vertical roll stand with a roll holder Frame that can be adjusted vertically and laterally in guide posts is arranged on a track retractable and extendable, the journals of the rollers through a plug connection is non-rotatably connected to the heads of articulated spindles, which for their part rotatably, but longitudinally displaceable in hollow comb rollers one below the rolls, fixedly arranged comb roll stand are used, characterized in that, that the frame (32) receiving the rollers can be raised and lowered in a known manner Supports (37) rests and the support can be raised until the connector is uncoupled are. Publications considered: German Patent Specifications No. 731 187, 17,422, 856 735, 715 601; Journal "Stahl und Eisen", 1952, pp. 1471 to 1474. Older patents considered: Deuts, i.e. patents nos. 959 005, 957 930, 967 373.