System for contactlessly sealing a rotably mounted shaft from a housing, and gear unit
AssigneeSew-Eurodrive GmbH & Co. KG
InventorsIngo Schütterle, Andreas Heβ
Life of this patent
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Abstract
In a system for contactlessly sealing a rotably mounted shaft from a housing, and a gear unit, oil is provided in the interior of the housing, the rotating shaft in particular projecting from the interior to the outer area, wherein a centrifugal disk is provided, which is connected to the shaft in torsionally fixed manner and has at least partially radially extending bores, which connect oil from a centrifugal chamber to a catch basin surrounding the centrifugal disk.
Claims17
A system for contactlessly sealing a rotably mounted shaft from a housing, an interior of the housing being at least partially fillable with lubricating oil, comprising:
- a centrifugal disk connected to the shaft in torsionally fixed manner and having bores that at least partially extend in a radial manner so that lubricating oil from a centrifugal chamber is conveyable into a catch basin at least partially surrounding the centrifugal disk, the bores adapted to discharge into the centrifugal chamber via end regions located radially on an inside, and to discharge into the catch basin via end regions located radially on an outside;
- a gap region arranged between the centrifugal disk and a flange part of the housing, the gap region connecting the centrifugal chamber to the catch basin, a bore adapted to discharge into the gap region, the gap region adapted to discharge into a further catch basin area via another end region, so that lubricating oil flung into the further catch basin area from a centrifugal edge connected to the shaft in torsionally fixed manner catchable and conveyable to the gap region through the bore;
- a gap region connecting the further catch basin area to the centrifugal chamber;
- and
- a dust guard sealed with respect to the flange part by a labyrinth seal and arranged on the shaft.
A system for contactlessly sealing a rotably mounted shaft from a housing, an interior of the housing being at least partially fillable with lubricating oil, comprising:
- a centrifugal disk connected to the shaft in torsionally fixed manner and having bores that at least partially extend in a radial manner so that lubricating oil from a centrifugal chamber is conveyable into a catch basin at least partially surrounding the centrifugal disk, the bores adapted to discharge into the centrifugal chamber via end regions located radially on an inside, and to discharge into the catch basin via end regions located radially on an outside;
- a gap region arranged between the centrifugal disk and a flange part of the housing, the gap region connecting the centrifugal chamber to the catch basin, a bore adapted to discharge into the gap region, the gap region adapted to discharge into a further catch basin area via another end region, so that lubricating oil flung into the further catch basin area from a centrifugal edge connected to the shaft in torsionally fixed manner catchable and conveyable to the gap region through the bore;
- a gap region connecting the further catch basin area to the centrifugal chamber;
- and
- a dust guard sealed with respect to the flange part by a labyrinth seal and arranged on the shaft;
- wherein the centrifugal disk is fixed in place on a centrifugal bushing provided on the shaft, which has centrifugal grooves;
- and
- wherein a gap is arranged between the centrifugal bushing and a further flange part connected to the flange part, the gap extending radially in a first subregion, and axially in a further subregion.
Dependencies are inferred from the claim text.