Orbital shaker with balancing device
AssigneeAdolf KüHner AG
InventorsBurkhard CORVES, Mathias SCHUMACHER, Jochen BÜCHS, Wolf KLÖCKNER
Life of this patent
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Abstract
An orbital shaker with a balancing device that automatically and passively compensates, without supply of external energy, forces and moments which are caused by imbalance and arise during operation, in particular as a result of a possible variable loading (mass, geometry of the containers, properties of the contents) and variable operating parameters (speed of rotation and shaking radius). The balancing device can be designed such that only the unbalance forces (static balancing) and/or the unbalance moments (dynamic balancing) are compensated.
Claims25
1-21. (canceled)
An orbital shaker comprising
- a shaker table with a surface for supporting a load;
- a rotor rotatable around a rotational axis;
- a drive set up to produce the rotational movement of the rotor;
- a rotary joint, which connects the rotor and the shaker table together so that they can rotate freely around a joint axis, which has a parallel offset (e) from the rotational axis;
- a guide connected to the shaker table and configured so that all points of the surface of the shaker table describe a circular orbit with the same diameter as the rotor rotates, the diameter corresponds to twice the parallel offset;
- and
- a balancing device for the automatic compensation of imbalance-caused forces and/or moments including:
- at least one balancing plane perpendicular to the rotational axis;
- at least one orbit arranged concentrically around the rotational axis in each the at least one balancing plane;
- a plurality of compensating masses arranged to move freely on each orbit;
- a rotational damping mechanism configured to produce a moment acting on the compensating masses when there is a deviation between the rotational speed of the compensating masses and the rotational speed of the rotor around the rotational axis;
- and
- a guide system configured to allow at least one of a translational movement of the rotor within a plane which is perpendicular to the rotational axis or a tilting of the rotor around two axes which are at right angles to each other and lie in a plane perpendicular to the rotational axis.
Dependencies are inferred from the claim text.