Rolling mill roll

Patent metadata

Field	Value
Publication number	US-2018071802-A1
Application number	US-201615560235-A
Country	US
Kind code	A1
Filing date	Mar 25, 2016
Priority date	Mar 27, 2015
Publication date	Mar 15, 2018
Grant date	—

Abstract

A rolling mill roll according to the present invention includes: a shaft member which rotates around an axial line; a rolling ring which is fitted to an outer circumferential surface of the shaft member; a support portion which is provided on the outer circumferential surface of the shaft member; an interposed ring which is fitted to the outer circumferential surface of the shaft member and is provided on the other side of the rolling ring in the axial line direction; a pressing nut which is screwed onto the outer circumferential surface of the shaft member and is disposed to be adjacent to the other side of the interposed ring; a screw hole which is formed to penetrate the pressing nut in the axial line direction; and a screw shaft which is screwed into the screw hole and which is capable of pressing the interposed ring toward the one side in the axial line direction.

First claim

1 . A rolling mill roll, comprising:
a shaft member which rotates around an axial line; a rolling ring which is fitted to an outer circumferential surface of the shaft member; a support portion which is provided on the outer circumferential surface of the shaft member and restrains a movement of the rolling ring toward one side in an axial line direction, with respect to the shaft member; an interposed ring which is fitted to the outer circumferential surface of the shaft member and is provided on the other side of the rolling ring in the axial line direction; a pressing nut which is screwed onto the outer circumferential surface of the shaft member and is disposed to be adjacent to the other side of the interposed ring in the axial line direction; a screw hole which is formed to penetrate the pressing nut in the axial line direction; and a screw shaft which is screwed into the screw hole and which is capable of pressing the interposed ring toward the one side in the axial line direction, wherein at least a portion between the pressing nut and the interposed ring is sealed so as to restrain passage of a liquid from an outer circumference of the rolling mill roll to an inner circumference side of the rolling mill roll.

2 . The rolling mill roll according to claim 1 ,
wherein the pressing nut and the interposed ring are positioned to face each other in a radial direction at a predetermined position further outside in the radial direction than a portion of the interposed ring which is pressed by the screw shaft, and wherein an annular seal member extending around the axial line is provided at the predetermined position.

3 . The rolling mill roll according to claim 1 ,
wherein annular seal members extending around the axial line are provided on both end surfaces of the rolling ring in the axial line direction.

4 . The rolling mill roll according to claim 1 ,
wherein an annular seal member extending around the axial line is provided on an end surface on one side of the interposed ring in the axial line direction.

5 . The rolling mill roll according to claim 1 ,
wherein a surface-hardening treatment is applied to at least the portion pressed by the screw shaft in the end surface on the other side of the interposed ring in the axial line direction.

6 . The rolling mill roll according to claim 1 ,
wherein the support portion is a support nut which is screwed onto the outer circumferential surface of the shaft member and is disposed on one side of the rolling ring in the axial line direction.

7 . The rolling mill roll according to claim 2 ,
wherein annular seal members extending around the axial line are provided on both end surfaces of the rolling ring in the axial line direction.

8 . The rolling mill roll according to claim 2 ,
wherein an annular seal member extending around the axial line is provided on an end surface on one side of the interposed ring in the axial line direction.

9 . The rolling mill roll according to claim 3 ,
wherein an annular seal member extending around the axial line is provided on an end surface on one side of the interposed ring in the axial line direction.

10 . The rolling mill roll according to claim 7 ,
wherein an annular seal member extending around the axial line is provided on an end surface on one side of the interposed ring in the axial line direction.

11 . The rolling mill roll according to claim 2 ,
wherein a surface-hardening treatment is applied to at least the portion pressed by the screw shaft in the end surface on the other side of the interposed ring in the axial line direction.

12 . The rolling mill roll according to claim 3 ,
wherein a surface-hardening treatment is applied to at least the portion pressed by the screw shaft in the end surface on the other side of the interposed ring in the axial line direction.

13 . The rolling mill roll according to claim 4 ,
wherein a surface-hardening treatment is applied to at least the portion pressed by the screw shaft in the end surface on the other side of the interposed ring in the axial line direction.

14 . The rolling mill roll according to claim 7 ,
wherein a surface-hardening treatment is applied to at least the portion pressed by the screw shaft in the end surface on the other side of the interposed ring in the axial line direction.

15 . The rolling mill roll according to claim 8 ,
wherein a surface-hardening treatment is applied to at least the portion pressed by the screw shaft in the end surface on the other side of the interposed ring in the axial line direction.

16 . The rolling mill roll according to claim 2 ,
wherein the support portion is a support nut which is screwed onto the outer circumferential surface of the shaft member and is disposed on one side of the rolling ring in the axial line direction.

17 . The rolling mill roll according to claim 3 ,
wherein the support portion is a support nut which is screwed onto the outer circumferential surface of the shaft member and is disposed on one side of the rolling ring in the axial line direction.

18 . The rolling mill roll according to claim 4 ,
wherein the support portion is a support nut which is screwed onto the outer circumferential surface of the shaft member and is disposed on one side of the rolling ring in the axial line direction.

19 . The rolling mill roll according to claim 5 ,
wherein the support portion is a support nut which is screwed onto the outer circumferential surface of the shaft member and is disposed on one side of the rolling ring in the axial line direction.

20 . The rolling mill roll according to claim 7 ,
wherein the support portion is a support nut which is screwed onto the outer circumferential surface of the shaft member and is disposed on one side of the rolling ring in the axial line direction.

Assignees

• Mitsubishi Materials Corp

Inventors

• Takatsuki Mitsuhiro
• Tanaka Hiroyuki
• ARIMURA Hiromasa
• Miyagawa Tadamasa
• UMETA Tsukasa

Classifications

• B21B27/024 Primary

  Rolls for bars, rods, rounds, tubes, wire or the like · CPC title

• B21B27/035 Primary

  Rolls for bars, rods, rounds, tubes, wire or the like · CPC title