Title:
偏心揺動型減速装置
Document Type and Number:
Japanese Patent JP7115876
Kind Code:
B2
Abstract:
Provided is technique to prevent an increase in an abrasion amount of a pin groove when an internal gear body of an aluminum alloy material is used. An eccentric oscillation type speed reducer comprises an external gear (16), an internal gear (18) engaged with the external gear (16), and an eccentric body (14) enabling the external gear (16) to pitch. The internal gear (18) has an internal gear body (30) provided with a pin groove (28), and a pin member (32) arranged to rotate in the pin groove (28). The internal gear body (30) is formed with an aluminum alloy of which content of Si is more than or equal to 6.0 wt%.
Inventors:
Shun Abe
Atsushi Tamenaga
Atsushi Tamenaga
Application Number:
JP2018045343A
Publication Date:
August 09, 2022
Filing Date:
March 13, 2018
Export Citation:
Assignee:
Sumitomo Heavy Industries Ltd.
International Classes:
F16H1/32; F16H55/06
Domestic Patent References:
| JP20149808A | ||||
| JP1088269A |
Attorney, Agent or Firm:
Makoto Kojima