System and method to minimize rope sway in elevators

Details System and method to minimize rope sway in elevators System and method to minimize rope sway in elevators

B - Operations, Transporting

66

B

B66B 1/42 (2006.01) B66B 1/44 (2006.01) B66B 7/06 (2006.01)

Patent

CA 2679474

A system and method for minimizing compensation rope sway by altering the natural frequency of compensation ropes using servo actuators. The rope sway may be minimized by moving the compensation sheave to adjust the tension of the compensation rope or adjusting the position of the termination of a compensation rope to account for changes in the position of a structure. Servo actuators may also be used to re-level the elevator car to account for rope stretch.

La présente invention concerne un système et un procédé de réduction du balancement du câble de compensation par la modification de la fréquence naturelle des câbles de compensation à l'aide de servocommandes. Il est possible de réduire le balancement du câble par le déplacement de la poulie de compensation afin de régler la tension du câble de compensation ou par le réglage de la position finale d'un câble de compensation afin de contrebalancer les changements de position d'une structure. Il est également possible d'utiliser des servocommandes pour remettre à niveau la cabine de l'ascenseur afin de compenser l'allongement du câble.

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