US 2026/0160323 A1 · PLANETARY GEAR

Abstract

Planetary transmission having transmission-housing elements, wherein at least one of the transmission-housing elements has an internal toothing which is oriented toward an axis of rotation of the planetary transmission, the transmission-housing elements have in each case at least one joining region, the joining regions have in each case one connecting surface, which is formed at least substantially perpendicularly to the axis of rotation and in a manner running around the axis of rotation, and one stop surface, which is spaced apart axially from the connecting surface and is formed at least substantially perpendicularly to the axis of rotation and in a manner running around the axis of rotation, and wherein the connecting surface of the first transmission-housing element is welded to the connecting surface of the second transmission-housing element.

Claims15

Dependent claims

Planetary transmission (100) having transmission-housing elements (1, 3, 5, 7), wherein

at least one (1) of the transmission-housing elements has an internal toothing (11) which is oriented toward an axis of rotation (150) of the planetary transmission,
the transmission-housing elements have in each case at least one joining region,
the at least one joining region having in each case one connecting surface (20a, 20b), which is oriented at least substantially perpendicularly to the axis of rotation and in a manner running around the axis of rotation, and one stop surface (24a, 24b), which is spaced apart axially from the connecting surface and is oriented at least substantially perpendicularly to the axis of rotation and in a manner running around the axis of rotation, and wherein
the connecting surface of the first transmission-housing element is welded to the connecting surface of the second transmission-housing element.

1 more element

Method for connecting a first transmission-housing element of a planetary transmission and a second transmission-housing element of the planetary transmission, wherein the first transmission-housing element has an internal toothing oriented toward an axis of rotation of the planetary transmission and has a first joining region, and the second transmission-housing element has a second joining region, wherein the joining regions are of stepped form, and wherein the first joining region and/or the second joining region have welding projections, the method comprising:

aligning the first transmission-housing element and the second transmission-housing element with one another so that the first joining region and the second joining region engage one into the other;
and
welding the first joining region of the first transmission-housing element to the second joining region of the second transmission-housing element by means of a resistance welding process.

Dependencies are inferred from the claim text.

Planetary gear

Life of this patent

Planetary gear

Life of this patent

Abstract

Claims15