SELF-SETTING VIBRORIPPER Russian patent published in 1994 - IPC

FIELD: transportation of loads. SUBSTANCE: vibroripper has plate 1 provided with at least five rods; one of them (rod 2) is of I-shaped cross-section and is positioned in center of plate 1 and four other rods 5 are of rectangular cross-section and are mounted diagonally symmetrically relative to rod 2, free end of which is located below plane I-I limiting length of rods 3. Secured on plate 1 is vibration exciter with unbalance shaft 6. Unbalanced masses 7 and 8 are mounted on ends of shaft 6 and are displaced relative to each other by 90 deg. Longitudinal axis of I-shaped cross-section of rod 2 is located perpendicularly to axis of unbalance shaft 6 passing through center of inertia. For suspending arrangement from hook of lifting crane it is provided with spring-loaded suspension 9. Intensive loosening of frozen load takes place under action of longitudinal, torsional and angular oscillations. EFFECT: stable operation without sticking in frozen loads. 2 dwg