- Patent Title: Hollow rotating shaft finishing method and hollow rotating shaft
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Application No.: US15417462Application Date: 2017-01-27
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Publication No.: US09855606B2Publication Date: 2018-01-02
- Inventor: Hiroyuki Ochiai , Yutaka Watanabe , Masanobu Natsuake , Kouzou Hasegawa
- Applicant: IHI Corporation
- Applicant Address: JP Tokyo
- Assignee: IHI Corporation
- Current Assignee: IHI Corporation
- Current Assignee Address: JP Tokyo
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2014-182984 20140909
- Main IPC: B23B1/00
- IPC: B23B1/00 ; B23B5/08 ; B23Q15/04 ; B23Q17/20

Abstract:
In the process of cutting the outer circumference 10o of a hollow rotating shaft 10 by using a finishing turning tool 36, the position of the finishing turning tool 36 is adjusted in the direction orthogonal to the virtual reference shaft center VS so that the center position CPo of the outer circumference 10o of the hollow rotating shaft 10 is deviated from the virtual reference shaft center VS in the same direction as the direction of the deviation vector ΔDi by an amount corresponding to the magnitude |ΔDi| of the deviation vector ΔDi. This can reduce the unbalance to zero also in the middle of the shaft and sufficiently reduce runout of the hollow rotating shaft 10 even if the rotation speed of the hollow rotating shaft 10 increases. Accordingly, it is possible to further improve the reliability of the hollow rotating shaft 10 at high rotation speed.
Public/Granted literature
- US20170136548A1 HOLLOW ROTATING SHAFT FINISHING METHOD AND HOLLOW ROTATING SHAFT Public/Granted day:2017-05-18
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