Ball transfer mechanism with polycrystalline diamond bearing support
| DWPI Title: Harmonic drive component for driving a rotor of a linear piston motor, comprises a hollow cylindrical coupler portion engaging a rotor portion for transferring torque to the rotor portion, and a ball transfer mechanism |
| Abstract: A ball transfer mechanism for a harmonic drive and linear piston motor is disclosed. The ball transfer mechanism includes a spherical ball and a cylindrical seat portion. The seat portion defines a hemispherical shaped recess with a contour for receiving the ball. The ball transfer mechanism is in an exterior wall of a housing for converting rotary motion to linear motion, driving a linear piston motor. The harmonic drive drives a rotor of the linear piston motor. The harmonic drive includes a hollow cylindrical coupler portion engaging a rotor portion for transferring torque to the rotor portion. Transfer mechanisms disposed along a housing wall of the linear piston motor engage the coupler portion. The coupler portion includes harmonic cam grooves for receiving spherical balls in the ball transfer mechanism that drives rotational motion in the rotor in response to axially linear movement of the piston assembly. |
| Use: Harmonic drive component for driving a rotor of a linear piston motor. |
| Advantage: Enables smooth operation of the motor. |
| Novelty: The harmonic drive (10) component comprises a hollow cylindrical coupler portion engaging a rotor portion for transferring torque to the rotor portion, and a ball transfer mechanism engageable with the coupler portion, where the coupler portion has a harmonic cam groove for receiving a spherical ball. Mutual reaction between the ball transfer mechanism and the harmonic cam groove provides axially linear movement of the drive portion to rotate the rotor portion. The seat portion has a hard metal outer layer and a polycrystalline core portion. The ball has steel or metal balls of comparable hardness. |
| Filed: 3/3/2021 |
| Application Number: US17190881A |
| Tech ID: SD 14330.1 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
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