JPS6018246B2 - Width adjustable rolling roll - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a width-adjustable rolling roll used as a horizontal roll of a universal mill.

Conventional rolls of this type use integral sleeve rolls in which a sleeve 2 is integrally iron-bonded to an arbor 1 as shown in Fig. 1, but when only a certain number of rolls are rolled, the side wall of the sleeve wears out. This would even deviate from the standards for shaped steel.

For rolls that can no longer be used at this size, the sleeve is shaved in the width direction to create a roll of the next size, and this size reduction is performed sequentially to roll from a large size to a small size. For this reason, the roll consumption rate is poor, and it is necessary to hold rolls of all sizes, and currently a huge number of rolls are held.

This invention was created in view of these circumstances.
The purpose is to provide a width-adjustable rolling roll that reduces the number of rolled rolls and improves roll consumption.

In the rolling roll according to the present invention, an IJ-shaped protrusion is formed in the center of the arbor, and ring-shaped sleeves are provided on both sides of the rib-shaped protrusion with a gap between them and the arbor via adjustment plates. A wedge member capable of enlarging this gap is placed in the space, and the pair of wedge members are vertically attached using bolts, nuts, etc. in the direction in which they approach each other, and the overall width can be freely adjusted by changing the width of the adjustment plate and sleeve. It is designed so that it can be adjusted to

The present invention will be described below based on an illustrated embodiment.

As shown in Fig. 2, the central part of the arbor 1 has a rib-like projection 3
An IJ ring-shaped sleeve 5 is provided on both sides of the rib-like protrusion 3 with an adjusting plate 4 in between and a gap 6 between the sleeve 5 and the arbor 1. A wedge 7 is disposed within this gap 6 and is capable of enlarging this gap.

A pair of wedge portions 7 on both sides of the rib-like protrusion 3 have a tapered surface 7A whose outer peripheral surface in the vertical direction rises outward in the horizontal direction and has a slope angle of 8, and has a tapered surface 7A with a slope angle of 8. A tapered surface 5A corresponding to the 7-tapered surface 7A is formed on the surface. The pair of wedge sections 7 are tightened in a direction toward each other by a bolt 8 passing through the wedge member and the rib-like projection 3, and a nut 9 screwed onto the tip of the bolt.

As shown in FIG. 3, a large number of these bolts and nuts are arranged at equal intervals in the circumferential direction, and the wedge member 7 is provided with a notch at one location in the circumferential direction. In this wedge member 7, instead of the notch, the connecting portion may be left completely without the notch, and the connecting portion may be deformed during tightening.

Furthermore, a ring-shaped member may be divided into a plurality of parts in the circumferential direction. Due to the wedge effect of the wedge member 7 having such a structure, the sleeve 5 and the adjusting plate 4 are integrated, and the sleeve 5 and the adjusting plate 4 are integrally attached to the arbor 1.

Furthermore, a key 10 may be provided between the rib-like projection 3 and the sleeve 5 to strengthen the integration. Further, the sleeve 5 may be made of cast metal such as adamite mirror steel or ductile, and only the rolled surface may be made of a wear-resistant material.

In this case, the rolled surface is formed by overlaying W or Co-containing alloy. In the roll having the above structure, the angle of inclination is preferably about 5 to 30 degrees.

For example, in the case of a universal mill rough roll of H-beam steel with a size of 600 to 200, the rolling load was 600T, the bolt attachment force was 50T, the number of bolts was IZ, and the a was 150, and as a result, it could sufficiently withstand rolling.

Since the rolling roll according to the present invention has the above-described configuration, rolls corresponding to various sizes can be obtained by changing the sleeve and adjustment plate, and the number of rolls owned can be significantly reduced.

Furthermore, the roll wife unit will be improved.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing a subordinate three-roll, FIG. 2 is a sectional view showing a rolling roll according to the present invention, and FIG. 3 is a sectional view showing a wedge member. 1...Arbor, 2...Sleeve, 3...Ribbed protrusion, 4...Adjustment plate, 5...Sleeve, 5A.
...-・7-pa surface, 6... gap, 7... wedge section,
7A...7-surface, 8...Bolt, 9...Nut, 10
……Key. Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] 1 A rib-like projection is formed in the center of the arbor, a ring-shaped sleeve is provided on both sides of the rib-like projection with a gap between it and the arbor via adjustment plates, and a wedge is installed in this gap to enlarge this gap. 1. A width-adjustable rolling roll characterized in that a pair of wedge members are arranged on both sides of a rib-like protrusion in a direction approaching each other and are tightened with bolts.