Device for the transmission of torque from a driving shaft to a driven shaft

摘要

A device to transmit torque from a driving shaft to a driven shaft includes not less than three respective eccentrics secured to each of the shafts, and cable-type connecting rods. The eccentrics can be angularly offset by up to 50 degrees between each other to reduce vibrations. The cable-type connecting rods connect via bearings the eccentrics of the driving and driven shafts and operate solely in tension. Increasing of the unit loads and reduction in weight of the connecting rods and counterweights is provided. Up to twelve eccentrics are secured to each of the shafts in order to increase the uniformity of torque transmission to the driven shaft.

主权项

1. A device for a synchronized transfer of a torque from a driving shaft to a driven shaft, comprising:
N driving eccentrics, rigidly attached to the driving shaft and N driven eccentrics rigidly attached to the driven shaft, wherein N≧3; the eccentrics each comprising a corresponding eccentric hole containing the driving and the driven shaft respectively; wherein a totality of said eccentrics of the driving shaft have an eccentricity offset of 2π/N between each other; wherein a totality of said eccentrics of the driven shaft have an eccentricity offset of 2π/N between each other; wherein said device is further comprised of bearings being coupled to each of the eccentrics; wherein said bearings eliminate a vertical component of the torque, where the vertical component is perpendicular to a plane formed by both the driving shaft and the driven shaft; wherein said device is further comprised of non-rigid cables, and said cables constantly operate in tension; wherein said cables serve as flexible connecting elements, wherein each of the said flexible connecting elements interconnects one of a single eccentric located at the driving shaft with a respective eccentric located at the driven shaft via the bearings; wherein said non-rigid cables and the bearings operate simultaneously, preserve a constant distance between the driving shaft and the driven shaft and perform an automatic synchronization of the driving shaft and the driven shaft; wherein at least one pair of the eccentrics of the driving shaft has a relative non-zero eccentricity offset of less than 50 degrees between each other to eliminate a vibrational resonance with the device itself; wherein said bearings surround an outermost periphery of the eccentrics.