Rolling bearing device, oil supply unit, method of supplying lubricating oil, and program

A rolling bearing device includes: a bearing portion that has an inner ring, an outer ring, a plurality of balls, and a cage that holds the plurality of balls; and an oil supply unit that supplies lubricating oil to the bearing portion. The oil supply unit has: a pump that discharges the lubricating...

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Bibliographic Details
Main Authors Sakazaki, Tsukasa, Higashiyama, Yoshimichi, Naka, Masami
Format Patent
LanguageEnglish
Published 31.12.2019
Subjects
BEARINGS
BLASTING
ELEMENTS OR CRANKSHAFT MECHANISMS
ENGINEERING ELEMENTS AND UNITS
FLEXIBLE SHAFTS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
ROTARY BODIES OTHER THAN GEARING ELEMENTS
SHAFTS
THERMAL INSULATION IN GENERAL
WEAPONS
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Summary:A rolling bearing device includes: a bearing portion that has an inner ring, an outer ring, a plurality of balls, and a cage that holds the plurality of balls; and an oil supply unit that supplies lubricating oil to the bearing portion. The oil supply unit has: a pump that discharges the lubricating oil through drive of a piezo element; a voltage boost portion that boosts a voltage to be applied to the piezo element; and a control portion that causes the pump to operate while varying a voltage boost time included in a period since the start of voltage boost by the voltage boost portion until the start of the drive of the piezo element.
Bibliography:Application Number: US201715816829