| 摘要 |
<p>A sheave monitor is disclosed. The condition of one or more grooves (34A-34E) in a sheave (24) of an elevator system is monitored by electrodes (44A-44L) that are positioned opposite the elevator ropes (22A-22E) positioned in the grooves (34A-34E). A monitor (50), connected to the electrodes and the motor encoder (48), provides an indication of groove condition in the circumferential direction based upon the capacitance between each rope and the electrode opposite that rope as well as rotation angle detected by the motor encoder (48). The monitor may provide a minimum cutting reference for sheave regrooving operation and also act as a rope guard.</p> |
