LOAD WINCH Russian patent published in 1997 - IPC

FIELD: materials handling facilities. SUBSTANCE: load winch has the following units made in form of separate modules: hydraulic motor 1, brake clutch, planetary reduction gear and drum 21. Adapter between hydraulic motor shaft and reduction gear sun gear shaft is made of two bushings 13 and 14 with splines kinematically intercoupled. Carrier 24 of first planetary train has splines with involute profile similar to that of rim of second train sun 25. Ring gears are made in form of common unit provided with support bearing 18 of slow speed stage carrier. Holes for turning bolts into brake clutch piston are made in hydraulic motor attachment cover opposite to springs. This provides forced release of friction disks for checking operation of reduction gear without dismounting of brake clutch. Four magnetic plugs in reduction gear housing located in drum port 31 at angle of 90 degrees over circumference make it possible to check condition of oil bath in reduction gear in any position of drum without its dismounting. EFFECT: enlarged operating capabilities, facilitated maintenance. 8 cl, 2 dwg