POSITION ADJUSTMENT DEVICE, ROTATING MACHINE PROVIDED WITH SAME, AND POSITION ADJUSTMENT METHOD

摘要

A position adjustment device (20) is provided with an eccentric pin (21) and a push rod (31). The eccentric pin (21) has a rotating shaft part (22) rotatably supported by the circumferential-direction (Dc) end of a lower-half outside member (11y), and an eccentric shaft part (23) inserted into the circumferential-direction (Dc) end of a lower-half inside member (6y). The push rod (31), which is inserted into the lower-half inside member (6y) from a circumferential-direction (Dc) end surface (7y) of the lower-half inside member, comes into contact with the eccentric shaft part (23) inside the lower-half inside member. The rotating shaft part (22) constitutes a column centered about a rotational axis (Ac) extending horizontally. Formed in the eccentric shaft part (23) are: a side peripheral surface (26), which is a surface in contact with the inner peripheral surface of an eccentric shaft hole (16) of the lower-half inside member into which the eccentric shaft part (23) is inserted, the side peripheral surface (26) being centered about an eccentric axis (Ad) parallel to the rotational axis (Ac), the eccentric axis (Ad) being set apart from the rotational axis (Ac) by a gap (d); and a rod contact surface (27) with which the push rod (31) comes into contact.