LUBRICATION-CONDITION DETECTOR, LUBRICANT FEEDER, INJECTION MOLDING MACHINE AND METHOD OF DETECTING LUBRICATION-CONDITION

A lubrication-condition detector detects a lubricant shortage of a target portion that repeats a predetermined operation at a predetermined cycle. The lubrication-condition detector includes: a physical-quantity measuring unit for continuously measuring a physical quantity related to the target port...

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Main Authors ITANI SHINYA, MORI MASAHIKO, TAKAMI MAKOTO, TOKUYAMA HARUMICHI, KIKUCHI HARUHIKO, YOSHINAGA AKIRA, SASAKI NORIYUKI
Format Patent
LanguageEnglish
Published 06.11.2008
Subjects
BLASTING
CRANKCASE VENTILATING
ENGINE PLANTS IN GENERAL
HEATING
LIGHTING
LUBRICATING INTERNAL COMBUSTION ENGINES
LUBRICATING OF MACHINES OR ENGINES IN GENERAL
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
STEAM ENGINES
WEAPONS
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Summary:A lubrication-condition detector detects a lubricant shortage of a target portion that repeats a predetermined operation at a predetermined cycle. The lubrication-condition detector includes: a physical-quantity measuring unit for continuously measuring a physical quantity related to the target portion; and a computer for determining a presence of a lubricant shortage based on the physical quantity. The computer includes: a cycle extractor for extracting a cycle datum per an operational cycle from continuous data including the physical quantity and its measuring time; a representative-value calculator for calculating a representative value for each of plural cycle data; and determining unit for determining a presence of a lubricant shortage based on the plural representative values.
Bibliography:Application Number: US20080100825