SU839640A1 - Apparatus for axial adjustment of rolling stand - Google Patents

Description

(54) DEVICE FOR AXIAL ROLL CUSTOM SETTING

The invention relates to ancillary equipment for rolling production, in particular, to structures of arrangements for axial adjustment of section rolling stands, and can be used on all grades of e1x and wire rolling mills, mainly in rolling square profiles.

A control pattern is known that is hinged on the axis of symmetry of the roll valve body and aligned with the roll gauge profile, which, when the roll gauges align with the axis of the roll, is inserted into the gauge of the upper roll, and the working part of the check pattern is along the gauge profile | 1.

A device is known for the axial adjustment of rolling mill rolls, including a control gauge installed by its curved end in the roll mill caliber, and the opposite end inside the roller reinforcement housing along its axis with the possibility of its movement along the axis of rotation around it, control devices | 2).

The axial adjustment of the stand with the aid of a known device is carried out with the help of a control plate in accordance with its counting by controlling devices. The known device allows only alignment of the axes of the gauges of the rolls with the axis of the roller guide and does not provide precise adjustment of the position of the rollers relative to the gauge and the alignment of the axes of the calibers of the upper and lower rolls, since these operations are performed visually. The lack of accuracy of the full axial setting of the cage leads to a decrease in the quality of rolling, distortion of the geometry of the profile and twisting rolls when leaving the cage.

The purpose of the invention is to improve the accuracy of setting the cage.

The goal is achieved by the fact that the device is equipped with a sleeve installed in the housing of the rebar rolls with the possibility of its rotation, in the axial bore of which the said control is placed, the sleeve being kinematically connected with control devices made

in the form of a selsyn sensor and an angle indicator.

In addition, the profiled end of the control pattern is made in the form of a wedge with sharp edges, the side surfaces of which correspond to the profile for the rolled steel.

FIG. 1 shows the structure of the device and its installation in the mill stand; in fig. 2 — projection of the gauge of the rolls and the control pattern aligned with it.

On the beam 1 of the rolling stand there is a roller posting 2 with skips removed. In the housing of the wiring, the cassette 3 is mounted and bolted with the sleeve 4 mounted in it along the axis of the wiring. The sleeve 5 is installed on rolling bearings and can be rotated around the rolling axis. The angle of rotation of the sleeve is limited by the screw 6. In the sleeve 4, a control template 7 is mounted with its cylindrical part, the front part of which is made in the form of a wedge with sharp edges, and part b has the shape and dimensions of the roll set in the cage. The guide pin 8 serves to move the check pattern 7 along the rolling axis. The sleeve 5 is equipped with a gear 9 and is kinematically connected with the selsyn sensor 10. An electric motor 11 is installed to sample the clearances and backlashes in the joints of the device parts on the same axis as the selsyn sensor. the quality of which can be used null indicator.

The axial adjustment of the cage is performed as follows.

Roller wiring 2 with the removed guide passes is mounted on the beam 1 of the stand against the gauge of the rolls, cassette 3 is mounted in the wiring housing, and the check pattern 7 is inserted into the gauge. After combining the template 7 with the cal {1 brom, adjust the wiring 2 relative to the gauge and fix in this position. The axial adjustment of the rolls was made according to the indications of the angle of rotation 12 of the control pattern 7.

The displacement of one of the rolls in the axial direction leads to the rotation of the template

7 together with the sleeve 4 around the axis of rolling. Rotation, sleeves 4 through gear 9 is transmitted to the rosin of the selsyn sensor and is recorded by the device (pointer) 12. After the axial installation of the rolls, the position of the roller wiring 2 is adjusted, for which the latter are reduced to aligning their profile with the profile of the template 7 position At this, the axial adjustment of the cage is completed, the cassette 3 is removed from the housing of the wiring 2, the guides are installed and the cage is prepared for operation.

The application of the proposed device allows for precise axial adjustment of the stand, i.e., the alignment of the axes of the roll gauges and the alignment of the axes of the roller roll wiring with the roll gauges.

Claims (2)

1. A device for axial adjustment of the rolling stand, including a control gauge, installed with its profiled end in the caliber of the rolling rolls, and the opposite end, inside the roller reinforcement housing along its axis with the possibility of its movement along the axis and turning around it, controlling devices characterized by that, in order to improve the accuracy of the stand adjustment, the device is equipped with a sleeve installed in the housing of the roller reinforcement with the possibility of its rotation, in the axial hole of which is placed a control head, When in use, the sleeve is kinematically associated with the control device configured as a synchro sensor and the rotational angle indicator. 2. The device according to claim 1, characterized in that the profiled end of the control pattern is made in the form of a wedge with sharp edges, the side surfaces of which correspond to the profile of the rolled stock to be specified. Sources of information taken into account in the examination 1. USSR author's certificate number 277700, cl. B 21 B 27/02, 1968. 2. For France of France No. 2366072, cl. B 21 B 39/14, 1978.