BARRING GEAR Russian patent published in 1994 - IPC

FIELD: mechanical engineering. SUBSTANCE: in barring gear of machine, for instance, gas turbine, which has drive engine, reduction gear with axial and peripheral movement of shaft, driven and driving gears secured, respectively, on shafts of machine and reduction gear, and driving gear engagement mechanism the latter is made in form of double-cone clutch whose outer race at engagement/disengagement of driving gear is held from peripheral rotation by spring-loaded rollers secured on reduction gear housing and getting into axial slots on clutch surface. EFFECT: enhanced reliability of barring gear provided by improvement of driving gear engagement mechanism by use of double-cone clutch ensuring clashless engagement of gear. 4 dwg