Gear unit having a shaft, a flange part, and a housing part

Patent metadata

Field	Value
Publication number	US-10539223-B2
Application number	US-201615566562-A
Country	US
Kind code	B2
Filing date	Mar 7, 2016
Priority date	Apr 13, 2015
Publication date	Jan 21, 2020
Grant date	Jan 21, 2020

Abstract

A gear unit includes a shaft, in particular an input shaft, a flange part and a housing part. The input shaft is supported by bearings in the housing part, and a fan is connected to the shaft in a torsion-proof manner. The housing part includes cooling fins, in particular cooling fins that extend in the axial direction, i.e. in the axis direction of the shaft, the cooling fins have an offset and/or stepped configuration, and the flange part surrounds the offset or stepped region of the cooling fins, in particular in the manner of a housing.

First claim

The invention claimed is:

1. A gear unit, comprising:
a shaft;
a flange part;
a housing part;
at least one bearing provided in the housing part and supporting the shaft; and
a fan connected to the shaft in a torsionally fixed manner;
wherein the housing part includes stepped cooling fins, and the flange part surrounds a stepped region of the stepped cooling fins
wherein the flange part includes projections projecting radially outwardly from the flange part, each of the projections corresponding to a respective one of the stepped cooling fins and being disposed at a respective same peripheral angle position as the respective one of the stepped cooling fins.

2. The gear unit according to claim 1 , wherein the shaft is arranged as an input shaft.

3. The gear unit according to claim 1 , wherein the stepped cooling fins extend in an axial direction and/or in an axis direction of the shaft.

4. The gear unit according to claim 1 , wherein the flange part surrounds the stepped region of the stepped cooling fins to form a housing.

5. The gear unit according to claim 1 , wherein the fan is adapted to supply an airflow between the flange part and the stepped cooling fins.

6. The gear unit according to claim 1 , wherein an external surface of the flange part includes a recess arranged for entry of an airflow.

7. The gear unit according to claim 6 , further comprising a perforated plate sealing the recess, the perforated plate connected and/or screw connected to the flange part.

8. The gear unit according to claim 1 , wherein an axial region covered by the flange part overlaps with an axial region covered by the cooling fins.

9. The gear unit according to claim 1 , wherein the projections are arranged as cooling fins.

10. The gear unit according to claim 1 , further comprising a connection device fixed in place on the flange part, and a tube fixed in place on the housing part.

11. The gear unit according to claim 10 , wherein the connection device includes a lubricating nipple.

12. The gear unit according to claim 1 , wherein the flange part is arranged on the stepped region.

Assignees

• Sew Eurodrive Gmbh & Co

Inventors

• Schwan Tobias
• Barton Peter
• Knittel Jan
• Eller Peter

Classifications

• F16H57/029

  characterised by means for sealing the gearboxes, e.g. to improve airtightness · CPC title

• F16H2057/02008

  characterised by specific dividing lines or planes of the gear case · CPC title

• F16H57/02 Primary

  Gearboxes; Mounting gearing therein · CPC title

• F16H57/0463

  Grease lubrication; Drop-feed lubrication · CPC title

• F16H57/031

  characterised by covers or lids for gearboxes · CPC title