Sumitomo Heavy Industries, Ltd.

Sakae Mitsufuji

Tetsuzo Ishikawa

Yuichi Nishitani

Shinichi Nishibe

Yoshitaka Shizu

In a shaft coupling structure in which a first shaft and a second shaft are coupled with each other by a combination of a key coupling and a clamp coupling, the first shaft has a cylindrical portion into which the second shaft is inserted and slits which are formed in the cylindrical portion by cutting off portions thereof in the axial direction, and a clamping fastener is mounted on portions of the outer circumference of the first shaft in which the slits are formed and the slit can be also used as a keyway of the key, and the plurality of slits are formed in the circumferential direction.

Shaft coupling structure

In a rotation apparatus including a motor and a speed reducer, the speed reducer includes a casing, an internal gear integrated with the casing, a planetary gear internally engaged with the internal gear, and a carrier body arranged in an axial side portion of the planetary gear, the motor and the speed reducer are connected with each other via an adapter, the adapter includes a motor-fixed surface fixed to the motor, a carrier-fixed surface fixed to the carrier body, and an externally fixed surface that is not parallel with the carrier-fixed surface and is fixed to an external member, a driven member is connected to the casing, the driven member, the speed reducer, and the externally fixed surface are overlapped with each other when viewed from a radial direction, and the driven member is rotated within a range of 180 degrees.

Rotation apparatus including motor and speed reducer

In a shaft coupling structure in which a second shaft is inserted into a cylindrical portion provided in a first shaft to be coupled with each other, with a bush being interposed between an inner circumference of the first shaft and an outer circumference of the second shaft, the first shaft and the second shaft are coupled with each other by a combination of a key coupling and a clamp coupling; the first shaft has a keyway with which the key engages and a shaft slit which is formed in the cylindrical portion by cutting off a portion thereof in the axial direction; and a fastener for the clamp coupling is mounted on a portion of an outer circumference of the first shaft in which the shaft slit is formed and the bush has a bush slit which corresponds to the keyway.

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Obu, Japan

Sakae Mitsufuji