Vertical column attached to hydraulic excavator - adjustable mounting for hydraulic vibration rammer and drilling machine and immediate change-over between the two

摘要

This is an arrangement for inserting rigid building elements into the ground with a hydraulic excavator. It has a vertical guidance column (a 'Makler') (1) that accommodates at the same time a vibration rammer (2) and a drilling appts. (3), either of which can be selected to operate. The several variants claimed include a selector device for directing the feed of hydraulic fluid either to the drilling appts. (3) or the vibration rammer (2). A cardan suspension (11), can slew through 180 deg., for the drill (14). USE/ADVANTAGE - The equipment allows a hole to be drilled in the ground for filling with a setting suspension or for driving in a steel girder (or other element) before the suspension has set. The girder can be driven in immediately after drilling and pouring, without delay due to having to change or adapt the equipment.