Elevator motor placed in the counterweight

Details Elevator motor placed in the counterweight Elevator motor placed in the counterweight

B - Operations, Transporting

66

B

B66B 11/08 (2006.01) B66B 9/00 (2006.01) B66B 11/04 (2006.01)

Patent

CA 2113040

An elevator motor provided with an external rotor and a traction sheave is so implemented that it simultaneously constitutes the counterweight of a rope-suspended elevator. The elevator motor is mounted to one of the side platesof the counterweight, so that this side plate acts simultaneously as a supporting structure of the motor and as a frame of the counterweight. In this motor/counterweight structure, rotating induction motors can be used. A gear is not necessary because the construction of the invention and the placement of the motor allow the use of a motor with a large diameter and therefore a high torque. As the length of the motor still remains small, the motor/counterweight of the invention can be accommodated in the space normally reserved for a counterweight in an elevator shaft.

oteur d'ascenseur à câbles, à rotor externe et à poulie de traction, constituant une partie du contrepoids de la cabine. Le moteur est monté sur une des plaques latérales du contrepoids, laquelle sert à la fois de support pour le moteur et d'ossature pour le contrepoids. Pour ce type d'arrangement, un moteur rotatif à induction peut être utilisé. Parce que les dispositions constructives de l'invention et l'emplacement du moteur permettent l'utilisation d'un moteur de grand diamètre et, donc, de couple élevé, il n'est pas nécessaire de prévoir un réducteur. Comme le moteur n'est pas très long, l'ensemble moteur/contrepoids faisant l'objet de la présente invention peut être installé dans l'espace normalement réservé au contrepoids dans un puits d'ascenseur.

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