公开(公告)号：US11505430B2

公开(公告)日：2022-11-22

申请号：US16176657

申请日：2018-10-31

Applicant: Kone Corporation

Inventor： Mika Juntunen ,  Mikko Puranen ,  Kim Antin ,  Telmo Santos ,  Miguel Machado

IPC: B66B7/12 ,  B66B1/34 ,  B66B7/06 ,  G01L5/10 ,  G01N27/9013 ,  B66B1/46 ,  B66B1/24 ,  G01N27/904

Abstract: The invention relates to a method for condition monitoring of a rope of a hoisting apparatus, and to an arrangement for condition monitoring of a rope of a hoisting apparatus, preferably of an elevator for transporting passengers and/or goods. The arrangement for condition monitoring of a rope of a hoisting apparatus according to the present invention, in which rope comprises one or more conductive load bearing member for bearing the load exerted on the rope in longitudinal direction and extending parallel to each other and to the longitudinal direction of the rope, comprises an at least one eddy current testing probe, placed near said rope for generating an alternating magnetic field, said alternating magnetic field causing eddy currents in said rope, and for detecting a secondary magnetic field being generated by said eddy currents in said rope as eddy current detection data, and an on-line monitoring unit receiving and utilizing said eddy current detection data for on-line condition monitoring of said rope.