IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0358208
(2012-01-25)
|
등록번호 |
US-8578604
(2013-11-12)
|
우선권정보 |
EP-11152475 (2011-01-28) |
발명자
/ 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
0 인용 특허 :
2 |
초록
▼
The method comprises positioning a first blade (10A) in substantially vertical position, connecting first ends of a first and a second cable section (24, 26), respectively, with a structure included by the nacelle (6), connecting second ends (30) of the first and the second cable section (24, 26), r
The method comprises positioning a first blade (10A) in substantially vertical position, connecting first ends of a first and a second cable section (24, 26), respectively, with a structure included by the nacelle (6), connecting second ends (30) of the first and the second cable section (24, 26), respectively, with the repair platform (18) and lifting the repair platform along said blade (10A) by means of the first and second cable sections (24, 26). The first and second cable sections (24, 26) are positioned so that they extend over the hub (8) and are supported at a distance from each other between root regions (16) of a second and a third blade (10B, 10C), respectively.
대표청구항
▼
1. A method of attaching a repair platform (18) to a wind turbine (2), the wind turbine comprising a tower (4), a nacelle (6) arranged at a top end (7) of the tower and including a structure (32), a hub (8) connected to a substantially horizontal rotor shaft and being located at a front end (9) of t
1. A method of attaching a repair platform (18) to a wind turbine (2), the wind turbine comprising a tower (4), a nacelle (6) arranged at a top end (7) of the tower and including a structure (32), a hub (8) connected to a substantially horizontal rotor shaft and being located at a front end (9) of the nacelle (6) and at least three wind turbine blades (10A, 10B, 10C) each having a root region (16) connected to the hub (8), the method comprising positioning a first blade (10A) in substantially vertical position, connecting first ends (28) of a first and a second cable section (24, 26), respectively, to the structure (32), connecting second ends (30) of the first and the second cable section (24, 26), respectively, to the repair platform (18) and lifting the repair platform along said blade (10A) by means of the first and second cable sections (24, 26), and positioning the first and second cable sections (24, 26) so that they extend over the hub (8) and are supported at a distance from each other between root regions (16) of a second and a third blade (10B, 10C), respectively. 2. A method of attaching a repair platform to a wind turbine according to claim 1, whereby the first and second cable sections (24, 26) are positioned so that they are supported at the root regions (16) of the second and the third blade (10B, 10C), respectively. 3. A method of attaching a repair platform to a wind turbine according to claim 1, whereby the first and second cable sections (24, 26) are positioned so that they are supported directly on a peripheral surface (38) of the hub (8). 4. A method of attaching a repair platform to a wind turbine according to claim 1, whereby the first and second cable sections (24, 26) are positioned so that they are supported directly on a surface (40) of the root region (16) of the second and the third blade (10B, 10C), respectively. 5. A method of attaching a repair platform to a wind turbine according to claim 1, whereby the first and second cable sections (24, 26) are positioned so that they are supported directly on a surface of a second and a third root region mounting connection of the hub (8), respectively. 6. A method of attaching a repair platform to a wind turbine according to claim 1, whereby the second ends (30) of the first and second cable sections (24, 26), respectively, are connected to a ring (42) which is connected with the repair platform (18) by means of at least one wire (44), and whereby the ring (42) is positioned at the top end (7) of the tower (4) and below the hub (8) or at a root region (16) of the first blade (10A) in substantially vertical position. 7. A method of attaching a repair platform to a wind turbine according to claim 6, whereby the ring (42) is provided with a first and a second wire (46) each having first ends (48) fixed to the ring (42) and second ends (50) provided with a connection mechanism (52), by means of which the connection between the second ends (30) of the first and second cable sections (24, 26), respectively, and the ring (42) is established. 8. A method of attaching a repair platform to a wind turbine according to claim 6, whereby the ring (42) connected with the repair platform (18) by means of a wire (44) is lifted from the ground to the top end (7) of the tower (4) by means of a hoisting device, in order to connect the second ends (30) of the first and second cable sections (24, 26), respectively, to the ring (42). 9. A method of attaching a repair platform to a wind turbine according to claim 6, whereby the second ends (30) of the first and second cable sections (24, 26), respectively, are slung over a blade (10B, 10C) at either side of the hub (8) so that part of the cable sections (24, 26) are positioned at the root regions (16) of the second and third blades, respectively, and subsequently, the second ends (30) of the first and second cable sections (24, 26), respectively, are connected to the ring (42), thereby positioning the ring hanging in a position under the hub (8). 10. A method of attaching a repair platform to a wind turbine according to claim 9, whereby the first ends (28) of the first and second cable sections (24, 26), respectively, are connected with the structure (32) before that part of the cable sections (24, 26) are positioned at the root regions (16) of the second and third blades (10B, 10C), respectively. 11. A method of attaching a repair platform to a wind turbine according to claim 6, whereby the second ends (30) of the first and second cable sections (24, 26), respectively, are maintained at the top of the nacelle (6) as central parts (54) of both the first and second cable sections (24, 26), respectively, are slung over a blade (10B, 10C) at either side of the hub (8) so that said central parts (54) of the cable sections are positioned at the root regions (16) of the second and third blades (10B, 10C), respectively, whereby, before or after slinging said central parts (54) of the cable sections (24, 26), the second ends (30) of the first and second cable sections (24, 26), respectively, are connected to the ring (42) which is connected with the repair platform (18) by means of a wire (44), and, after slinging said central parts (54) of the cable sections (24, 26), the ring (42) is slung over the hub (8), thereby positioning the ring (42) hanging in a position under the hub (8). 12. A method of attaching a repair platform to a wind turbine according to claim 6, whereby the ring (42) has the form of a solid steel ring and is accompanied by a wire ring (56) to which the first ends (48) of the first and second wires (46), respectively, are also fixed, and which is also connected with the repair platform (18) by means of the at least one wire (44). 13. A method of attaching a repair platform to a wind turbine according to claim 6, whereby the ring (42) is provided with a first and a second wire (46) each having first ends (48) fixed to the ring (42) and second ends (50) provided with a sling hook, by means of which the sling hook between the second ends (30) of the first and second cable sections (24, 26), respectively, and the ring (42) is established. 14. A method of attaching a repair platform to a wind turbine according to claim 6, whereby the ring (42) connected with the repair platform (18) by means of a wire (44) is lifted from the ground to the top end (7) of the tower (4) using a winch and a rope, in order to connect the second ends (30) of the first and second cable sections (24, 26), respectively, to the ring (42). 15. A method of attaching a repair platform to a wind turbine according to claim 1, whereby the first and second cable sections (24, 26) are lead through a door opening (58) in a roof (60) of the nacelle (6) or through an open nacelle roof in general in order to connect the first ends (28) of the first and second cable sections (24, 26) with the structure (32). 16. A method of attaching a repair platform to a wind turbine according to claim 1, whereby the structure (32) is a gear box, a generator or a nacelle frame and whereby, preferably, the first cable section (24) is connected to a first anchorage point (34) of the gear box, generator or nacelle frame and the second cable section (26) is connected to a second anchorage point (36) of the gear box, generator or nacelle frame. 17. A method of attaching a repair platform to a wind turbine according to claim 1, whereby the first and second cable sections (24, 26) have the form of textile slings, wires or belts, such as nylon wires or belts. 18. A method of attaching a repair platform to a wind turbine according to claim 1, whereby the second ends (30) of the first and second cable sections (24, 26), respectively, are connected to a ring (42) which is connected with the repair platform (18) by means of two wires (44), and whereby the ring (42) is positioned at the top end (7) of the tower (4) and below the hub (8) or at a root region (16) of the first blade (10A) in substantially vertical position.
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