ARRANGEMENT FOR PROVIDING A PULSING COMPRESSIVE FORCE

摘要

The invention relates to a soil compacting device. The device comprises an exciter part (1), which has an unbalance exciter (2) for producing an intermittent exciter force and which has a contact surface (3) for transmitting a force component of the exciter force directed perpendicularly to the contact surface (3) to the soil surface (4) to be compacted as a pulsing compressive force. The device also comprises a damper part (5), which is connected to the exciter part (1) by means of a spring-damper unit (15). The spring stiffness of the spring-damper unit (15), the damping of the spring-damper unit (15), the spring pre-load of the spring-damper unit (15), the mass of the damper part (5), the mass moment of inertia of the damping part (5), the mass of the exciter part (1), and/or the mass moment of inertia of the exciter part (1) can be varied during operation. It is thereby possible for the first time to provide soil compacting tools functioning according to the damper principle that can always be operated at the optimal operating point for different soil types and during progressing compaction and that have corresponding advantages regarding the compacting performance and durability of the tools.