Pin for planetary gear system
First Claim
Patent Images
1. A pin for coupling a planet gear to a carrier in a planetary gear system, the pin comprising:
- a first end;
a second end;
an outer surface extending between the first end and the second end, wherein the outer surface comprises a first end surface extending from the first end and an intermediate surface extending from the first end surface, the first end surface configured for interfacing with the carrier;
means for modifying the compliance of the pin at an interface between the pin and the carrier; and
a closed bore hole extending through the first end surface generally transverse to a central planet axis of the pin.
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Abstract
A pin for coupling a planet gear to a carrier in a planetary gear system is disclosed. The pin includes a first end, a second end, and an outer surface extending between the first end and the second end. In some embodiments, the pin further includes means for modifying the compliance of the pin at an interface between the pin and the carrier. In other embodiments, the pin further include a compliance feature defined in the outer surface, the compliance feature allowing greater compliance of the pin in the tangential direction than in the radial direction.
48 Citations
17 Claims
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1. A pin for coupling a planet gear to a carrier in a planetary gear system, the pin comprising:
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a first end; a second end; an outer surface extending between the first end and the second end, wherein the outer surface comprises a first end surface extending from the first end and an intermediate surface extending from the first end surface, the first end surface configured for interfacing with the carrier; means for modifying the compliance of the pin at an interface between the pin and the carrier; and a closed bore hole extending through the first end surface generally transverse to a central planet axis of the pin. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A pin for coupling a planet gear to a carrier in a planetary gear system, the pin comprising:
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a first end; a second end; an outer surface extending between the first end and the second end, wherein the outer surface comprises a first end surface extending from the first end and an intermediate surface extending from the first end surface, the first end surface configured for interfacing with the carrier; and
,a compliance feature defined in the first end surface, the compliance feature allowing greater compliance of the pin in the tangential direction than in the radial direction, wherein the compliance feature comprises the outer surface having a reduced cross-sectional profile through at least a portion of an axial length of the outer surface. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A pin for coupling a planet gear to a carrier in a planetary gear system, the pin comprising:
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a first end; a second end; an outer surface extending between the first end and the second end, the outer surface comprising a first end surface extending from the first end and an intermediate surface extending from the first end surface, the first end surface configured for interfacing with the carrier; means for modifying the compliance of the pin at an interface between the pin and the carrier, the means comprising an open channel defined in the first end surface, the channel extending annularly about at least a portion of an outer periphery of the first end surface.
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Specification