Mixing drum drive
AssigneeZF Friedrichshafen AG
InventorEduard Heilig
Life of this patent
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Abstract
A mixing drum drive includes first, second, and third rotational speed reduction stages, an electric motor having a length similar to its diameter, a component for fastening the electric motor, and a bearing by which a component for fastening a mixing drum is rotatable. A component with a gear of the first rotational speed reduction stage is configured to be driven by the electric motor and a further component with a gear of the first rotational speed reduction stage drives a component with a gear of the second rotational speed reduction stage. A further component with a gear of the second rotational speed reduction stage drives a component with a gear of the third rotational speed reduction stage and a further component with a gear of the third rotational speed reduction stage drives the component for fastening the mixing drum.
Claims11
A mixing drum drive, comprising:
- a first rotational speed reduction stage;
- a second rotational speed reduction stage;
- a third rotational speed reduction stage;
- an electric motor having a length similar to its diameter;
- a component for fastening the electric motor;
- and
- a bearing by which a component for fastening a mixing drum is rotatable,
- wherein a component with a gear of the first rotational speed reduction stage is configured to be driven by the electric motor and a further component with a gear of the first rotational speed reduction stage drives a component with a gear of the second rotational speed reduction stage and a further component with a gear of the second rotational speed reduction stage drives a component with a gear of the third rotational speed reduction stage and a further component with a gear of the third rotational speed reduction stage drives the component for fastening the mixing drum,
- wherein the third rotational speed reduction stage is arranged on one side of the bearing, and the first rotational speed reduction stage and the second rotational speed reduction stage are arranged on the other side of the bearing;
- and
- wherein a lubricant chamber in which the third rotational speed reduction stage is arranged is separated in a fluid-tight manner from a lubricant chamber in which the second rotational speed reduction stage is arranged.
Dependencies are inferred from the claim text.