Planetary drive comprising a planet carrier
AssigneeSchaeffler Technologies AG & Co. KG
InventorMarian Cintula
Life of this patent
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Abstract
A planetary drive includes a planet carrier and planetary gears. The carrier includes two axially-facing carrier plates and at least one connecting element. The connecting element is a linear strip of metal that is bent to take the shape of a cylinder for assembly. The strip of metal connects the two carrier plates while maintaining them in a spaced apart relationship. The strip includes a plurality of openings or holes for receiving a part of the planetary gears as they rotate. The strip is a separate element from the carrier plates, but is assembled to and between the plates.
Claims12
A planetary drive comprising:
- a planet carrier and planetary gears, wherein the planet carrier includes two axially opposing carrier elements and at least one connecting element, and wherein the carrier elements are axially connected to one another via the connecting element, and retained at an axial spacing,
- wherein the planetary gears are supported with a radial spacing about an axially oriented central axis of the planetary drive on the carrier elements, such that the planetary gears protrude radially beyond the connecting element through radial openings formed in the connecting element,
- wherein the connecting element is a single metal strip that forms a hollow cylinder that runs around the central axis of the planetary drive, the metal strip having two ends facing one another in the direction of the circumference, and wherein the metal strip is connected to both carrier elements, wherein the openings are delimited by the material of the metal strip, at least in the direction of the circumference.
A planetary carrier assembly, comprising:
- a pair of planet carrier plates disposed about a central axis and spaced from one another, each planet carrier plate defining an outer radial surface;
- a plurality of planetary gears supported for rotation about the axis and axially between the planet carrier plates, wherein the planetary gears protrude radially beyond the outer radial surface of the planet carrier plates;
- and
- a single-piece strip formed into a cylindrical shape disposed about the central axis and axially between the pair of planet carrier plates, the strip defining a plurality of openings that receive at least a portion of the planetary gears, wherein the strip is a separate element attached to the planet carrier plates and has two ends connected to one another and facing one another in a direction of a circumference of the strip.
Dependencies are inferred from the claim text.