Gear device

摘要

A damper structure for a gear device, which includes a first gear mounted to turn with respect to a shaft in a circumferential direction, a second gear mounted on the shaft to rotate integrally, a stopper rubber mounted on the second gear to face the first gear, and a pressing protrusion at the first gear to face the second gear. The stopper rubber is configured to be elastically deformed by pressing the pressing protrusion in a circumferential direction of the second gear during rotation of the first gear and be restored to the initial shape by separating the pressing protrusion during stop of the first gear. A recess for accumulating lubricating oil in the first gear is formed to face the stopper rubber.

主权项

1. A gear device comprising:
a first gear disposed at a shaft to turn the first gear with respect to the shaft in a circumferential direction, the first gear including an insert that includes a recess extending in an axial direction of the insert to accumulate lubricating oil; a second gear disposed at the shaft to integrally rotate the second gear and the shaft; a protrusion disposed at the first gear, the protrusion facing the second gear; and a stopper rubber disposed at the second gear, the stopper rubber facing the first gear, the stopper rubber being configured to be elastically deformed by pressing the protrusion in the circumferential direction of the second gear during rotation of the first gear, the stopper rubber being configured to be restored to an initial shape by separating the protrusion from the stopper rubber during stop of the first gear, and the recess facing the stopper rubber, wherein the shaft includes an oil passage and the recess accumulates the lubrication oil supplied by the oil passage, and the recess faces the second gear and has an annular shape extending in the circumferential direction of the first gear.