Life evaluating device and robot system

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 12049983
APP PUB NO 20230138726A1
SERIAL NO

18090988

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A device for estimating a temperature of a lubricant in a transmission that transmits power from a motor to a robot joint includes a thermometer and a processor. The processor includes hardware configured to: receive, as input from the motor, a current value of the motor and calculate, as output, a motor heat value based thereon; receive, as input from the motor and the transmission, a rotating speed of the motor and a frictional torque of the transmission, and calculate, as output, a frictional heat value in the transmission based on the rotating speed of the motor and at least one of the frictional torque of the transmission and at least one coefficient of friction of the transmission; and receive, as input from the thermometer, the room temperature, the frictional heat value, and the motor heat value and estimate, as output, the estimated temperature of the lubricant based thereon.

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Patent Owner(s)

Patent OwnerAddress
FANUC CORPORATION3580 SHIBOKUSA AZA-KOMANBA OSHINO-MURA MINAMITSURU-GUN YAMANASHI 401-0597

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Guo, Wei Yamanashi, JP 345 2714
Nakagawa, Hiroshi Yamanashi, JP 252 3848

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