JPH04407U

JPH04407U -

Info

Publication number: JPH04407U
Application number: JP3759090U
Authority: JP
Priority date: 1990-04-06
Filing date: 1990-04-06
Publication date: 1992-01-06

Description

[Brief explanation of drawings]

第１図は実施例に係る条鋼圧延用組立ロールの
要部断面図、第２図は他の実施例に係る条鋼圧延
用組立ロールの要部断面図である。１……ロール軸、２……複合スリーブ、３……
締結リング、５……外層、６……内層、１６……
筒体。 FIG. 1 is a sectional view of a main part of an assembled roll for rolling a long steel according to an embodiment, and FIG. 2 is a sectional view of a main part of an assembled roll for rolling a long steel according to another embodiment. 1...Roll axis, 2...Composite sleeve, 3...
Fastening ring, 5... outer layer, 6... inner layer, 16...
Cylindrical body.

Claims

[Claims for Utility Model Registration] (1) In an assembled roll for rolling long steel in which a sleeve 2 having a rolling layer is inserted into a roll shaft 1 and fixed to the body, the inner peripheral surface of both ends of the sleeve 2 and the roll shaft 1 A fastening ring 3, 3 is provided between the outer circumferential surface of the body and the fastening ring 3, 3 can freely expand the diameter of the outer circumferential surface and reduce the diameter of the inner circumferential surface, or reduce the diameter of the outer circumferential surface and expand the diameter of the inner circumferential surface. 3, the sleeve 2 is removably fixed to the roll shaft 1, and the inner periphery is fixed to the roll shaft 1 so that no gap is created between the inner peripheral surface of the central part of the sleeve 2 and the outer peripheral surface of the body of the roll shaft 1 during rolling. An assembled roll for rolling long steel, characterized in that the surface and outer peripheral surface are fitted with an interference of 5/100 mm or less. (2) In the assembled roll for rolling long steel in which the sleeve 2 having the rolling layer is inserted into the roll shaft 1 and fixed to the body, there is a gap between the inner circumferential surface of both ends of the sleeve 2 and the outer circumferential surface of the body of the roll shaft 1. , fastening rings 3, 3 are provided which can freely expand the diameter of the outer circumferential surface and contract the diameter of the inner circumferential surface, or reduce the diameter of the outer circumferential surface and expand the diameter of the inner circumferential surface, and the sleeve 2 is rolled through the fastening rings 3, 3. A cylinder that is detachably fixed to the shaft 1 and has a coefficient of thermal expansion larger than that of the sleeve 2 so that no gap is created between the inner circumferential surface of the central part of the sleeve 2 and the outer circumferential surface of the body of the roll shaft 1 during rolling. An assembly roll for rolling long steel, characterized in that a body 16 is attached between the inner circumferential surface and the outer circumferential surface by a clearance fit.