Patent ID: 11894746
Assignee: ABB SCHWEIZ AG
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An actuated machine comprising:
a main frame;
a machine shaft mounted on the main frame by means of a bearing module;
a gearless torque motor coupled to the machine shaft for driving a rotation of the machine shaft;
a torque arm coupled to the gearless torque motor; and
a catching structure,
wherein the gearless torque motor is coupled to the machine shaft such that the gearless torque motor is capable of following a translational movement of the machine shaft and such that the machine shaft carries at least 50% of the gearless torque motor's weight,
wherein the torque arm is coupled to the gearless torque motor for inhibiting a rotational motion of the gearless torque motor, relative to the main frame, about a central axis of the gearless torque motor,
wherein the catching structure is arranged directly underneath the gearless torque motor and is arranged and configured to catch and hold the gearless torque motor in case of a failure causing the gearless torque motor's weight to be no longer carried by the machine shaft, and
wherein the catching structure is separated from the gearless torque motor by an air gap, whereby the weight of the catching structure is not supported by the gearless torque motor.