公开(公告)号：US20150110631A1

公开(公告)日：2015-04-23

申请号：US14406981

申请日：2013-05-01

Applicant: Vestas Wind Systems A/S

Inventor： Leif Christoffersen ,  Torben Friis Baun ,  Jesper Lykkegaard Andersen

IPC: F03D1/06 ,  F03D7/04 ,  F03D7/02 ,  F03D11/00 ,  F03D11/04

CPC classification number: F03D1/0658 ,  F03D1/0691 ,  F03D7/0224 ,  F03D7/04 ,  F03D80/00 ,  F03D80/50 ,  F03D80/70 ,  F05B2240/912 ,  F05B2250/314 ,  Y02E10/721

Abstract: A wind turbine is described which comprises a tower, a nacelle mounted to the top of the tower, and a rotor mounted to the nacelle. The rotor comprises two or more blades mounted to a central hub. The hub supports two or more annular pitch bearings associated respectively with the two or more blades. Each pitch bearing defines a bearing plane inclined at a first angle with respect to a horizontal plane when the respective blade is oriented in a downwardly direction in alignment with the tower. Each pitch bearing is spanned by a hub plate; and a work platform integral with or mounted to the hub plate lies generally in a plane at a second angle to the horizontal plane when the respective blade is oriented in a downwardly direction in alignment with the tower, which second angle is less than the first angle. The work platform provides a substantially horizontal platform for use by maintenance personnel when installing or servicing components in and around the hub.

Abstract translation: 描述了一种风力涡轮机，其包括塔架，安装到塔顶部的机舱和安装到机舱的转子。 转子包括安装到中心毂的两个或更多个叶片。 轮毂支撑分别与两个或更多个叶片相关联的两个或更多个环形变桨轴承。 每个变桨轴承限定相对于水平面以第一角度倾斜的轴承平面，当相应的叶片朝向与塔架对准的向下方向时。 每个变桨轴承由轮毂板跨越; 并且与所述毂板成一体或安装在所述毂板上的工作平台大体上在与所述水平面成第二角度的平面中，当所述各个叶片朝向与所述塔对准的向下方向时，所述第二角度小于所述第一角度 。 工作平台提供了一个基本上水平的平台，供维护人员在安装或维护集线器内和周围的组件时使用。