Device for Inserting Foundation Piles

摘要

A screwing device on a cantilever arm of a construction vehicle for screwing foundation installations into the ground has a suspension, a screw head, and an actuator. The actuator can be pivoted about two axes extending parallel to one another and transversely with respect to the longitudinal axis of the screw head. The articulation point on the screw head follows the motion of the pivoting lever on the longitudinal axis due to a migration of the articulation point from the longitudinal axis of the screw head occurring due to pivoting of the pivoting lever about the axes while screwing the foundation installation into the ground. The axes extend transverse to the longitudinal direction of the cantilever arm and are supplemented by at least one additional axis supported transversely with respect to said axes. This compensates for a migration of the articulation point in each direction.

主权项

1. A screwing device for screwing foundation installations or the like into the ground as an attachment apparatus for attaching to a cantilever arm of a construction vehicle, said screwing device having a suspension, by means of which the screwing device can be articulated on an articulation point of the cantilever arm, and a screw head connected to the suspension, to which screw head the foundation installation to be screwed in can be coupled, and an actuator which is designed as a pivot lever, the actuator is articulated with its end nearest the cantilever on the articulation point of the cantilever arm and with its end nearest the screw head on an articulation point on the screw head and can be pivoted about parallel axes which extend through the articulation points and transversely with respect to the longitudinal axis of the screw head in such a way that, due to a migration of the articulation point from the longitudinal axis of the screw head occurring due to pivoting of the pivoting lever about the axes while the foundation installation is being screwed into the ground, the articulation point on the screw head follows the motion of the pivoting lever on the longitudinal axis.