Mitsubishi Jukogyo Kabushiki Kaisha

Kunio Yamamoto

Kanji Hayashi

Kanehisa Miyaguchi

Masashi Oya

Tamenari Doho

Junichi Ibushi

Yoshiki Mito

Hidehiko Tsukamoto

Kazuo Ideue

Tateo Tanimoto

Hiroaki Shimazutsu

Hiroshi Aratani

Tsuneo Egawa

Katsuaki Takasaki

Ryuichi Ozono

Tsunetaka Sumomogi

Masao Arikawa

Hiroyuki Hino

Susumu Kawamoto

An improved method and apparatus for grinding a rotary body, in which a rotatably supported grindstone is positioned in such manner that an extension of a rotary axis of the grindstone does not intersect a rotary axis of the rotary body and the rotary axis of the grindstone is inclined with respect to a plane perpendicular to the rotary axis of the rotary body to be ground. The rotary body to be ground is rotatably driven, and the grindstone is pressed against the outer circumferential surface of the rotary body to be ground in order that the outer circumferential surface of the rotary body to be ground can be ground by a relative slip produced at a contact point between the outer circumferential surface of the rotary body to be ground and the grindstone.

Method and apparatus for grinding a rotary body

A method and apparatus for grinding a roll in a rolling mill on an on-line grinding basis, are improved in that a freely rotatable grinding body such and is a grindstone is pressed against a surface of the roll to be ground as directed in the direction making a predetermined angle with respect to the axis of the roll. The roll is rotated so that the surface of the roll may be ground by a relative slip between the grinding body and the roll caused by their different circumferential velocities.

A four high mill of a paired-roll-crossing type comprises upper and lower equalizer beams held in contact, respectively, with the uppermost and lowermost surfaces of upper and lower backup roll bearing cases and made movable upwardly and downwardly within a housing, roll-crossing devices mounted in the housing to turn the bearing cases that contain upper and lower work chocks about a common vertical axis on the same horizontal plane so that upper and lower pairs of rolls can cross each other, and devices for separately setting the left and right roll gaps between upper and lower work rolls. The mill further comprises work roll-bending devices mounted at both ends of the work rolls.

Four high mill of the paired-roll-crossing type

Growing community of inventors

Hiroshima, Japan

Kunio Yamamoto