MANIPULATOR Russian patent published in 2001 - IPC

FIELD: agricultural engineering; load-lifting facilities. SUBSTANCE: proposed manipulator has base 1 in form of hollow cylinder with inclined upper beam, lower beams with extensible supports with locking mechanism being installed, on extreme lower beams and with mounting brackets. Slewing column 8 with hinge-mounted boom 9 is secured in space of base for turning around vertical axle. Boom has stick 10 with hinge-mounted load-gripping hook. Radial bearings are installed in upper and lower parts of base, and thrust bearing is mounted in lower part. Radial bearings have movable and fixed races one of which is made of hardened wear-resistant steel. Other race is made removable being preferably manufactured of antifriction material. Wear-resistant ring in upper radial bearing is installed lower than support rings of rod of slewing column, and antifriction ring-in base. Lower movable race of rod in lower radial bearing is made of antifriction material, and race in lower part of base is made of wear-resistant steel. Axial displacement of column hollow rod upwards from base space is limited by travel limiter, and its downward travel is limited by thrust bearing. Slewing column is connected with base by turning mechanism. EFFECT: enlarged zone of servicing. 14 cl, 4 dwg