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公开(公告)号：US20170002795A1
公开(公告)日：2017-01-05
申请号：US14788966
申请日：2015-07-01
Applicant: General Electric Company
Inventor： Biju Nanukuttan , Rajanikanth Reddy Dasari , Dhanesh Chandrashekar Pathuvoth , Srikanth Samudrala , Mohan Kumar Lakshminarayana
CPC classification number: F03D7/0224 , F03D1/0658 , F03D1/0666 , F03D1/0675 , F03D80/70 , F05B2240/50 , F05B2260/79 , Y02E10/721
Abstract: The present disclosure is directed to a pitch assembly for coupling a rotor blade to a hub of a wind turbine. In one embodiment, the pitch assembly includes a first pitch bearing having a first outer race and a first inner race rotatable relative to the first outer race via a first set of rolling elements, a second pitch bearing having a second outer race and a second inner race rotatable relative to the second outer race via a second set of rolling elements, and at least one spacer configured axially between and contacting the first and second pitch bearings. Further, at least a portion of the first pitch bearing and at least a portion of the second pitch bearing are axially aligned between the rotatable hub and the rotor blade in a generally span-wise direction.
Abstract translation: 本公开涉及一种用于将转子叶片耦合到风力涡轮机的轮毂的桨距组件。 在一个实施例中，桨距组件包括具有第一外座圈的第一变桨轴承和经由第一组滚动元件相对于第一外座圈可旋转的第一内座圈，具有第二外座圈和第二内座圈的第二变桨轴承 经由第二组滚动元件相对于第二外圈旋转，以及至少一个间隔件，其被构造成轴向地在第一和第二变桨轴承之间并与第一和第二变桨轴承接触。 此外，第一变桨轴承的至少一部分和第二变桨轴承的至少一部分在大致跨度方向上在可旋转轮毂和转子叶片之间轴向对准。
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公开(公告)号：US09970414B2
公开(公告)日：2018-05-15
申请号：US14788966
申请日：2015-07-01
Applicant: General Electric Company
Inventor： Biju Nanukuttan , Rajanikanth Reddy Dasari , Dhanesh Chandrashekar Pathuvoth , Srikanth Samudrala , Mohan Kumar Lakshminarayana
CPC classification number: F03D7/0224 , F03D1/0658 , F03D1/0666 , F03D1/0675 , F03D80/70 , F05B2240/50 , F05B2260/79 , Y02E10/721
Abstract: The present disclosure is directed to a pitch assembly for coupling a rotor blade to a hub of a wind turbine. In one embodiment, the pitch assembly includes a first pitch bearing having a first outer race and a first inner race rotatable relative to the first outer race via a first set of rolling elements, a second pitch bearing having a second outer race and a second inner race rotatable relative to the second outer race via a second set of rolling elements, and at least one spacer configured axially between and contacting the first and second pitch bearings. Further, at least a portion of the first pitch bearing and at least a portion of the second pitch bearing are axially aligned between the rotatable hub and the rotor blade in a generally span-wise direction.
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