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US 11,111,984 B2Granted
Rotary axis module and articulated robot
AssigneeFanuc Corporation
InventorsKazutaka Nakayama, Kenichirou Abe, Masahiro Morioka
Life of this patent
Estimating the term…
Abstract
A rotary axis module includes: an input shaft connected to a drive motor; an output shaft, an output shaft flange connected to the output shaft; parallel gears coupled to the output shaft flange; at least two double gears; and a transfer gear that transmits the power of the drive motor to the double gears. The at least two double gears and the transfer gear are disposed so as to surround the output shaft.
Claims15
A rotary axis module comprising:
- an input shaft connected to a drive motor;
- an output shaft;
- an output shaft flange connected to the output shaft;
- parallel gears coupled to the output shaft flange;
- a reduction-drive outer case rotatably supported by the output shaft flange;
- a double gear train including at least two double gears disposed in the reduction-drive outer case;
- and
- a transfer gear that transmits power of the drive motor to the double gear train, and
- bearings whose inner surface sides are coupled to the output shaft flange,
- wherein the parallel gear is engaged with a pinion of one of the at least two double gears while a gear wheel of the other double gear of the at least two double gears is engaged with the transfer gear, and
- the at least two double gears and the transfer gear are disposed in a space between an inner surface of the reduction-drive outer case and the output shaft so as to surround the output shaft.
8 more elements
A rotary axis module comprising:
- an input shaft connected to a drive motor;
- an output shaft;
- an output shaft flange connected to the output shaft;
- parallel gears coupled to the output shaft flange;
- a reduction-drive outer case rotatably supported by the output shaft flange;
- a double gear train including at least two double gears disposed in the reduction-drive outer case;
- a transfer gear that transmits power of the drive motor to the double gear train, and
- bearings whose inner surface sides are coupled to the output shaft flange,
- wherein the parallel gear is engaged with a pinion of one of the at least two double gears while a gear wheel of the other double gear of the at least two double gears is engaged with the transfer gear,
- the at least two double gears and the transfer gear are disposed in a space between an inner surface of the reduction-drive outer case and the output shaft so as to surround the output shaft;
- the at least two double gears are each supported by support bearings and a support member, and the support member is fixed to a mounting flange where the drive motor is mounted;
- and
- at least one of the support members of the double gears is supported by both of the pinion and the gear wheel.
10 more elements
Dependencies are inferred from the claim text.