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US 7,182,709 B2Granted
Planetary gear, gear motor and series of gear motors
AssigneeSew-Eurodrive GmbH & Co. KG
InventorsMichael Christ, Heinrich Zimmermann, Jürgen Kasper
Life of this patent
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Abstract
A series of gear motors, a gear motor, and a planetary-gear stage includes planet wheels that mesh with a sun wheel and inner gear teeth provided for the gear housing. The planet wheels are supported in a rotatable planet carrier, which forms the power take-off, and to which a sealing element is assigned on the output side. The planetary-gear stage is assigned a further sealing element on the input side. The gear housing is shaped on the input side such that an interface is formed for connection to further components, which include at least one shaft connected to the sun wheel.
Claims18
A planetary-gear stage, comprising:
- a sun wheel;
- a gear housing including inner gear teeth, the gear housing shaped on an input side as an interface to connect to further components, including at least one shaft connected to the sun wheel;
- a rotatable planet carrier arranged to form a power takeoff;
- a first seal element assigned to the planet carrier on an output side;
- a second seal element arranged on the input side;
- and
- planet wheels arranged to mesh with the sun wheel and the inner gear teeth of the gear housing, the planet wheels supported in the planet carrier;
- wherein a housing of the further component includes a seat for an inner ring of an input-side bearing, an outer ring of the input-side bearing arranged in the planet carrier.
5 more elements
A gear motor, comprising:
- at least one planetary-gear stage including:
- a sun wheel;
- a gear housing including inner gear teeth, the gear housing shaped on an input side as an interface to connect to further components, including at least one shaft connected to the sun wheel;
- a rotatable planet carrier arranged to form a power takeoff;
- a first seal element assigned to the planet carrier on an output side;
- a second seal element arranged on the input side;
- and
- planet wheels arranged to mesh with the sun wheel and the inner gear teeth of the gear housing, the planet wheels supported in the planet carrier;
- wherein the at least one planetary-gear stage is connectible to an electric motor to form a gear motor arrangeable as a drive unit;
- and
- wherein a housing of the further component includes a seat for an inner ring of an input-side bearing, an outer ring of the input-side bearing arranged in the planet carrier.
8 more elements
A series of gear motors, comprising:
- at least one size, each size including at least one variant, each variant including at least one electric motor and at least one gear stage, at least one of the gear stages configured as a planetary-gear stage, each gear stage including an interface on an input side, the interface configured to connect to a further component having a corresponding interface on an output side
- wherein the planetary-gear stage includes:
- a sun wheel;
- a gear housing including inner gear teeth, the gear housing shaped on an input side as an interface to connect to further components, including at least one shaft connected to the sun wheel;
- a rotatable planet carrier arranged to form a power takeoff;
- a first seal element assigned to the planet carrier on an output side;
- a second seal element arranged on the input side;
- and
- planet wheels arranged to mesh with the sun wheel and the inner gear teeth of the gear housing, the planet wheels supported in the planet carrier, a housing of the further component including a seat for an inner ring of an input-side bearing, an outer ring of the input-side bearing arranged in the planet carrier.
6 more elements
A planetary-gear stage, comprising:
- at least two sun wheels;
- a gear housing including inner gear teeth, the gear housing shaped on an input side as an interface to connect to further components, including at least one shaft connected to at least one of the sun wheels;
- a rotatable planet carrier arranged to form a power takeoff;
- a first seal element assigned to the planet carrier on an output side;
- a second seal element arranged on the input side;
- and
- at least two sets of planet wheels, each of the at least two sets having at least two wheels, each of the of planet wheels arranged to mesh with at least one of the sun wheels and the inner gear teeth of the gear housing, the planet wheels supported in the planet carrier;
- wherein a housing of the further component includes a seat for an inner ring of an input-side bearing, an outer ring of the input-side bearing arranged in the planet carrier.
5 more elements
Dependencies are inferred from the claim text.