PURPOSE: To miniaturize a body to reduce installation space and to achieve rapid and safety change of guide disks by fixing the guide disks, installing fixed and movable holders and installing a driving shaft to be movable in the axial direction.
CONSTITUTION: Before removing guide disks 38, 39, a movable holder is brought into contact with the disks 38, 39, hydraulic oil is supplied in the rear end side of a cylinder room 26 from an oil source through a piping 33 to move a piston 27 and a bolt 29 to the top end side and to separate a head 28 of the bolt 29 from plates 42, 43. Hooks of a crane, etc., are locked in a hole of tongue pieces 40, 41 of the plates 42, 43 and to remove the plates 42, 43 from the bolt 29 and to release a fixing condition of a top 18 of a rotating shaft 17 from the guide disks 38, 39. Then, only the guide disks 38, 39 are moved toward the rear end to pull out the shaft 18 from the disks 38, 39.
Nagai, Toyohiro
Kobayashi, Teruo
Hosokawa, Tokio
KAWASAKI STEEL CORP
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