| 摘要 |
The invention relates to an assembly for exchangeably fastening an add-on, for example an excavator shovel ( 2 ), to an excavator boom ( 3 ), whereby retaining bolts ( 4, 5 ) spaced apart (A) in parallel are disposed on the excavator shovel ( 2 ). Said retaining bolts ( 4, 5 ) can be gripped by grippers ( 6, 7 ) mounted on the excavator shovel ( 3 ) that can be hydraulically adjusted relative to each other. Said grippers ( 6, 7 ) have open insertion openings ( 8, 9 ) for the retaining bolts ( 4, 5 ) in directions facing away from each other. The longitudinal axis ( 10 ) of the hydraulic drive ( 11 ) for adjusting the grippers ( 6, 7 ), the center axis ( 12, 13 ) of the retaining bolts ( 4, 5 ) and the center axis ( 14, 15 ) of the insertion openings ( 8, 9 ) on the grippers ( 6, 7 ) are at least approximately arranged in one plane ( 16 ). One gripper ( 6 ) is retained in parallel to the axis of the drive ( 11 ) in a guide ( 17 ) and can be linearly displaced. The parts of the hydraulic or pneumatic drive ( 11 ), namely the cylinder ( 20 ) and the piston ( 21 ) are firmly linked with the grippers ( 6, 7 ) (FIG. 2 ). |
