METHOD FOR TESTING A BRAKE OF AN ELEVATOR HOISTING MACHINE AND SYSTEM

A method for testing an elevator hoisting machine brake with a preselected test load TL includes confirming empty elevator car positioned at a test location stest; obtaining information of elevator balancing B; obtaining information of friction Fr of the elevator at the test location stest; determin...

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Bibliographic Details
Main Authors CALCAGNO, Alessio, STOLT, Lauri, AITAMURTO, Juha-Matti
Format Patent
LanguageEnglish
French
German
Published 08.03.2023
Subjects
ELEVATORS
ESCALATORS OR MOVING WALKWAYS
HAULING
HOISTING
LIFTING
PERFORMING OPERATIONS
TRANSPORTING
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Summary:A method for testing an elevator hoisting machine brake with a preselected test load TL includes confirming empty elevator car positioned at a test location stest; obtaining information of elevator balancing B; obtaining information of friction Fr of the elevator at the test location stest; determining required assisting test torque TM of a hoisting machine motor based on said test load TL, balancing B and friction Fr; opening one of the brakes while keeping rest of the brakes engaged in braking position, applying torque with the motor at most up to the required test torque TM, measuring movement of the elevator car, and if movement of the elevator car was detected, generating a signal indicating degraded condition of one or more hoisting machine brakes.
Bibliography:Application Number: EP20210748795