Vibration damping apparatus for mounting an electric actuator on a hydraulic drive

A drive assembly having a hydraulic pump disposed in a drive housing to which an electric actuator is mounted, the electric actuator having a gear housing and an electric motor, the drive assembly comprising:

• a trunnion arm extending from the drive housing;
• a drive adapter configured to be coupled to the trunnion arm, and configured to engage an actuator to control the trunnion arm;
• a fastener engaging the drive adapter and received by the trunnion arm to couple the drive adapter to the trunnion arm;
• a magnet mounted to the fastener and positioned adjacent to a magnetic field sensor positioned within the gear housing of the electric actuator;
• a spring engaging the drive adapter to bias the magnet into a positional range adjacent to the magnetic field sensor;
• and
• a mounting adapter for mounting the electric actuator to the drive housing, wherein the mounting adapter comprises:
• a base plate configured to be coupled to the drive housing, wherein the base plate defines a clearance opening that enables the trunnion arm to extend therethrough;
• a support arm extending from the base plate, the support arm having a proximal end adjacent to the base plate and a distal end;
• a pilot projection extending from the base plate concentrically about the clearance opening, wherein the pilot projection is configured to engage a pilot opening of the drive housing;
• and
• a vibration damping clamp coupled to the distal end of the support arm, the vibration damping clamp configured to extend circumferentially about a housing of the electric motor.

An assembly for mounting an electric actuator to a hydraulic drive, the electric actuator having an electric motor and a gear housing, the hydraulic drive including a hydraulic pump disposed in a drive housing and a trunnion arm operatively engaged to the hydraulic pump and extending out of the drive housing through a pilot opening in the drive housing, the assembly comprising:

• a mounting adapter comprising:
• a base plate configured to be coupled to the drive housing, wherein the base plate defines a clearance opening that enables the trunnion arm to extend therethrough, wherein the base plate further defines a stop surface extending circumferentially about the clearance opening;
• a support arm extending from the base plate, the support arm having a proximal end adjacent to the base plate and a distal end;
• a pilot projection extending from the base plate concentrically about the clearance opening, wherein the pilot projection is configured to engage the pilot opening of the drive housing;
• and
• a vibration damping clamp coupled to the distal end of the support arm, the vibration damping clamp configured to extend circumferentially about a housing of the electric motor:
• a drive adapter connected to the trunnion arm by a fastener;
• a magnet mounted to the fastener;
• and
• a spring positioned between and engaging the stop surface of the mounting adapter and the drive adapter, the spring biasing the drive adapter in a direction away from the mounting adapter to position the magnet next to a magnetic field sensor positioned within the gear housing of the electric actuator.