SPEED REDUCER, ROTARY DRIVE SYSTEM, AND HYDRAULIC SHOVEL

Title:

SPEED REDUCER, ROTARY DRIVE SYSTEM, AND HYDRAULIC SHOVEL

Document Type and Number:

WIPO Patent Application WO/2019/167480

Kind Code:

A1

Abstract:

A speed reducer is provided with: a transmission section (80) that rotates around an axis; an annular member (170) that has a cylindrical shape surrounding the axis and that rotates together with the transmission section (80) around the axis, said annular member (170) having formed therein an oil sump comprising a recessed groove recessed into the inner circumferential surface thereof, and a lubricating oil supply hole that extends and opens toward the radially outward side from the recessed groove; and a sliding section provided to the radially outward side of the lubricating oil supply hole of the annular member (170).

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Inventors:

MINAMIURA AKIRA (JP)
ISHIYAMA MASAHIKO (JP)
IWAMOTO NAOYUKI (JP)
CHIBA TEIICHIROU (JP)

Application Number:

PCT/JP2019/001931

Publication Date:

September 06, 2019

Filing Date:

January 22, 2019

Export Citation:

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Assignee:

KOMATSU MFG CO LTD (JP)

International Classes:

F16H57/04; E02F9/12; F16D55/40; F16D65/853; F16H1/46; F16N7/38

Foreign References:

JP2013124480A	2013-06-24
JP2005008143A	2005-01-13
JPS58122061U	1983-08-19
JP2013174327A	2013-09-05
JP2009079627A	2009-04-16

Attorney, Agent or Firm:

SHIGA INTERNATIONAL PATENT OFFICE (JP)

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