ELEVATOR MOTOR BRAKE TORQUE MEASUREMENT DEVICE

摘要

An elevator machine (20) assembly useful in an elevator system (10) includes a motor frame (26) that supports a motor (24) for selectively rotating a motor shaft (28). A brake (36) selectively applies a braking force to resist rotation of the motor shaft (28). At least one load sensor (46) resists undesirable movement of the brake (36) and provides an indication of a load that results from applying the braking force. A disclosed example includes using a first resistive member (46) to resist movement of the brake (36) relative to the motor frame (26) when the load is below a threshold load and using a second resistive member (60) to resist movement when the load exceeds the threshold load.