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US 2019/0162271 A1Published application
Gear motor and assembling method thereof
AssigneeSumitomo Heavy Industries, Ltd.
InventorsKoji Moritani, Mitsuhiro Tamura
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AssigneeSumitomo Heavy Industries, Ltd.
InventorsKoji Moritani, Mitsuhiro Tamura
Estimating the term…
A gear motor includes a speed reducer and a motor. The speed reducer includes an internal gear, an external gear, an input shaft having an oscillating portion oscillating the external gear, an oscillating bearing which is disposed between the external gear and the oscillating portion, and an input bearing which supports the input shaft, the input shaft includes a protrusion portion which protrudes from the motor side such that a rotor of the motor is provided in the protrusion portion, and includes a bearing disposition section in which the input bearing is disposed and a rotor disposition section in which the rotor is disposed in this order from the speed reducer side toward the motor side, an outer diameter of the rotor disposition section is equal to or less than an outer diameter of the bearing disposition section, and a rotor magnet is directly fixed to the rotor disposition section.
A gear motor comprising:
An assembling method of a gear motor including a first internal gear, a second internal gear, a main bearing which is disposed between the first internal gear and the second internal gear and rotates the first internal gear and the second internal gear relative to each other, an external gear which internally meshes with the first internal gear and the second internal gear, an input shaft which includes an oscillating portion oscillating the external gear and a protrusion portion which protrudes from the motor side such that the rotor is provided in the protrusion portion, an oscillating bearing which is deposed between the oscillating portion and the external gear, an input bearing which supports the motor side of the input shaft, a counter-motor side input bearing which supports a counter-motor side of the input shaft, and a bearing housing which supports the counter-motor side input bearing,
Dependencies are inferred from the claim text.