ROTOR BLADE REMOVAL DEVICE AND ROTOR BLADE REMOVAL METHOD

Japanese Patent JP2022181354

A

To remove a rotor blade from a disc even when a distance between a rear end surface of an upstream side disc and a front end surface of a downstream side disc is short.SOLUTION: A rotor blade removal device comprises an extrusion mechanism, and a frame to which the extrusion mechanism is attached. The extrusion mechanism has a contact end that can contact a rotor blade, and a drive mechanism that moves the contact end in a movement direction. The frame has a base extending in the movement direction, a reaction force receiving part extending from a first base end part of the base toward a first height side, and a pressure receiving part provided at a second base end part of the base. The base has an outer peripheral contact surface facing the first height side and capable of contacting the outer peripheral surface of a disc. The reaction force receiving part has an end contact surface facing a second movement side and capable of contacting a first end surface of the disc. The pressure receiving part has a mechanism contact surface facing a first movement side and capable of contacting a mechanism end surface facing the second movement side of the drive mechanism.SELECTED DRAWING: Figure 9

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SAKAGUCHI TADAKAZU
UESATO RIKU

JP2021088264A

December 08, 2022

May 26, 2021

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MITSUBISHI HEAVY IND LTD

F04D29/64; F01D25/28; F04D29/38

Yasushi Matsunuma
Eisuke Ito
Hiroyuki Hashimoto
Ancient city Satoshi
Koichiro Kamada

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