DRIVE MECHANISM (DESIGN VERSIONS) Russian patent published in 1997 - IPC

FIELD: mechanical engineering; mechanisms converting reciprocating motion into rotary motion. SUBSTANCE: bushing with screw slots on inner surface is fixed in housing. Shaft with projections engaging with bushing slots is placed inside bushing. Projections of shaft are made in form of spline teeth over helical line with big lead angle. Bushing is made in form of pack assembled from many thin cross disks. Straight splined slots are made in dick hole to parameters of splined shaft. Fasteners are provided on outer surface of disk to secure disk in housing. Bushings can be assembled of disks of two types. In some disks inner splined slots are made, and in others, inner cylindrical hole and outer fastening members are provided. Disks are alternately screwed on shaft, are driven into hole in housing and are tightened up by nut in place. EFFECT: enlarged operating capabilities, increased load carrying capability. 2 cl, 4 dwg