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US 2003/0156491 A1Published application
Oscillation detecting device for compacting soil
AssigneeWacker Construction Equipment AG
InventorsWolfgang Fervers, Thomas Maurer
Life of this patent
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Abstract
A device for compacting the soil comprising a soil contact element which is impinged upon by an oscillation exciter enabling the soil to be compacted. The soil contact element is elastically coupled to an upper mass. The upper mass is used as a detection mass, whereby the acceleration thereof is detected by an acceleration sensor. A measuring signal emitted by the acceleration sensor is evaluated in a control device which controls the oscillation exciter according to a deviation from a set value.
Claims9
A soil-compacting device, comprising
- a lower mass having a soil contact element (5) for the purpose of soil compaction;
- a vibration generator (2) which actuates the soil contact element (5);
- and comprising
- an upper mass (1) which is elastically connected to the lower mass and has a drive for the vibration generator (2);
- In which Arrangement
- a detection mass (1) is connected to the soil contact element (5) by means of an elastic coupling (4);
- the detection mass (1) can be moved with at least one degree of freedom relative to the elastic coupling (4) with the soil contact element (5);
- a measuring means (6) is provided for measuring the movement of the detection mass (1) in the direction of at least the one degree of freedom and emits a measuring signal (7);
- a control means (8) is provided for the purpose of evaluating the measuring signal (7) to give an actual value, comparing the actual value with a setpoint value and activating the vibration generator (2) in a way corresponding to a deviation of the actual value from the setpoint value.
6 more elements
Dependencies are inferred from the claim text.