SPEED REDUCER, ROTARY DRIVE SYSTEM, AND HYDRAULIC SHOVEL

A speed reducer includes a transmission unit rotating around an axis, an annular member having a cylindrical shape surrounding the axis, rotating around the axis together with the transmission unit, and having an oil sump having a recessed groove recessed in an inner peripheral surface and a lubrica...

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Bibliographic Details
Main Authors Minamiura, Akira, Ishiyama, Masahiko, Iwamoto, Naoyuki, Chiba, Teiichirou
Format Patent
LanguageEnglish
Published 10.09.2020
Subjects
BLASTING
BRAKES
CLUTCHES
COUPLINGS FOR TRANSMITTING ROTATION
DREDGING
ENGINEERING ELEMENTS AND UNITS
FIXED CONSTRUCTIONS
FOUNDATIONS
GEARING
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
HYDRAULIC ENGINEERING
LIGHTING
LUBRICATING
MECHANICAL ENGINEERING
SOIL SHIFTING
THERMAL INSULATION IN GENERAL
WEAPONS
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Summary:A speed reducer includes a transmission unit rotating around an axis, an annular member having a cylindrical shape surrounding the axis, rotating around the axis together with the transmission unit, and having an oil sump having a recessed groove recessed in an inner peripheral surface and a lubricating oil supply hole extending and opening radially outward from the recessed groove, and a sliding portion provided radially outward of the lubricating oil supply hole of the annular member.
Bibliography:Application Number: US201916758120