Patent ID: 11955873
Assignee: AUTOMATA TECHNOLOGIES LIMITED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  B | IPC B  H

Claim 11:
12. A drive train comprising:
a motor assembly comprising an electric motor and a rotatable shaft defining an input axis, the shaft comprising a first set of gear teeth;
a gear box assembly comprising an annular gear comprising a second set of gear teeth which intermesh with the first set of gear teeth, and a housing comprising a fixed portion to which the motor assembly is mounted and a rotatable portion fixed to the annular gear and providing the output from the drive train about an output axis offset from the input axis; and
an encoder assembly to measure the rotation at the output axis;, wherein:
a central opening is defined through the gear box assembly in alignment with the output axis and passing through the housing and the annular gear, the motor assembly being mounted so as to not obstruct the central opening;
the encoder assembly comprises an annular first portion mounted to the rotatable portion of the gearbox assembly about the central opening, and a second portion fixed with respect to the fixed portion of the housing of the gear box assembly to measure the rotation of the annular first portion; and
the mounting for the second portion of the encoder with respect to the fixed portion of the housing of the gearbox assembly is flexible in a direction transverse to the output axis.