EXCAVATOR EQUIPMENT Russian patent published in 1997 - IPC

FIELD: mechanical engineering; earth moving machinery; single-bucket excavators. SUBSTANCE: excavator equipment has dipper stick, bucket, two-hinge insert with joints for turning the bucket in longitudinal and cross planes connected by one hinge joint with stick, and by other, with bucket. Jaw is hinge-connected with bucket. Jaw control hydraulic cylinders are hinge connected with jaw. Hydraulic cylinder for turning bucket in longitudinal plane is hinge-connected with stick and two-hinge insert. Hinge joint for turning bucket in cross plane is made in form of slewing circle rigidly connected to two-hinge insert and circular guides rigidly connected to upper portion of bucket. Hydraulic cylinder intended for turning bucket in cross plane is hinge-connected to circular guides and to two-hinge insert. Slewing circle can be arranged below two-hinge insert. Open circular guides can be used. Circular guides can enclose slewing circle or, on the contrary, slewing circle can enclose circular guides. EFFECT: enlarged operating capabilities, enhanced reliability. 5 cl, 7 dwg