| 摘要 |
The invention relates to a connection piece (105, 501) for a pitch tube (101) of a wind turbine, said connection piece (105, 501) comprising a receiving portion (309, 507) into which said pitch tube (101) can be at least partially inserted. The connection piece (105, 501) is made to have at least two parts, with a first part (103, 503) and a second part (107, 311, 505); said first part (103, 503) having a first at least partially circular sealing surface (301, 509); the second part (107, 311, 505) having a second at least partially circular sealing surface (303, 511); and the first sealing surface (301, 509) and second sealing surface (303, 511) forming, along with a section of the pitch tube (101) surface, at least one section of a delimiting surface of a cavity for receiving a seal (307, 401, 513, 601), when the pitch tube (101) has been inserted into said receiving portion (309, 507); and comprising at least one means for altering the distance between said first sealing surface (301, 509) and second sealing surface (303, 511). |
