Slewing assembly for a cold planer

A slewing assembly for providing a rotational movement of a loading conveyor pivotally supported on a cold planer, the slewing assembly comprising:

• a frame-side structure extending from a frame towards the loading conveyor;
• a conveyor-side structure extending from the loading conveyor towards the frame-side structure;
• a shaft pin disposed about a vertical axis, and pivotally connecting the frame-side structure and the conveyor-side structure;
• a yoke fixedly coupled with the shaft pin such that a controlled bi-directional rotational movement of the yoke provides a controlled bi-directional rotational movement of the shaft pin;
• a pair of hydraulically actuated cylinders operatively arranged in a parallel configuration with respect to each other, each hydraulically actuated cylinder having a first end and a second end respectively, wherein the first ends are coupled to the frame-side structure and the second ends are coupled to lateral opposite ends of the yoke, and wherein extension of one hydraulically actuated cylinder of the pair of hydraulically actuated cylinders and simultaneous retraction of other hydraulically actuated cylinder of the pair of hydraulically actuated cylinders generates the controlled bi-directional rotational movement of the yoke;
• and
• a spline arrangement formed on the shaft pin and configured to transfer the controlled bi-directional rotational movement of the shaft pin as a controlled bi-directional rotational movement of the conveyor-side structure, wherein the controlled bi-directional rotational movement of the conveyor-side structure provides the rotational movement of the loading conveyor, about the vertical axis, with respect to the frame.

A cold planer comprising:

• a frame supported by a plurality of ground engaging members, the frame defining a forward end in the cold planar;
• a milling drum supported by the frame and configured to remove material from a ground surface;
• a loading conveyor pivotally supported on the frame at the forward end thereof, the loading conveyor configured to receive the material and to convey the material to a location off of the cold planer;
• and
• a slewing assembly for providing a rotational movement of the loading conveyor, about a vertical axis, with respect to the frame, the slewing assembly comprising:
• a frame-side structure extending from the forward end of the frame towards the loading conveyor;
• a conveyor-side structure extending from the loading conveyor towards the frame-side structure;
• a shaft pin disposed about a vertical axis, and pivotally connecting the frame-side structure and the conveyor-side structure;
• an actuator arrangement configured to generate a controlled bi-directional rotational movement of the shaft pin;
• and
• a spline arrangement formed on the shaft pin and configured to transfer the controlled bi-directional rotational movement of the shaft pin as a controlled bi-directional rotational movement of the conveyor-side structure, wherein the controlled bi-directional rotational movement of the conveyor-side structure provides the rotational movement of the loading conveyor, about the vertical axis, with respect to the frame.