SCREW GEARING Russian patent published in 2007 - IPC F16H25/20 

FIELD: mechanical engineering.

SUBSTANCE: invention can be used in automatic device, quick-acting clamp, vices and jacks. Nut of screw gearing consists of four and more inserts 3 installed in cavities made in longitudinal direction in housing 1. Spring-loaded support 12 rests on conical surfaces 9, 10 on end faces of inserts at one side, and follower 14 at other side. Spring-loaded disk 19 thrusts through two balls against other end face of follower. Spring-loaded disk 19 is coupled with screw 21 through key screw is installed in guides 23, 24 on end pars of housing holes.

EFFECT: improved reliability and operating capabilities of screw gearing, reduced overall dimensions.

4 dwg