SAFETY DEVICE FOR AN OPERATOR DURING THE SERVICING OF A HUB OF A WIND TURBINE

• US 20150354233A1
• Filed: 03/28/2013
• Published: 12/10/2015
• Est. Priority Date: 01/10/2013
• Status: Abandoned Application

• Current Assignee: Siemens AG
• Original Assignee: Siemens AG
• Inventors: Ebbesen, Henning, Steen, Stephan Breum
• Application Number:
  US14/759,376
• Publication Number:
  US 20150354233A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: E04G 3/246 following the inside contour of a building
• CPC Class Codes: F03D 1/0691 of the hub
• CPC Class Codes: F03D 80/50 Maintenance or repair
• CPC Class Codes: Y02E 10/72 Wind turbines with rotation axis in wind direction

Abstract

A safety device, for ensuring the safety of an operator, is arranged in a rotor, in particular of a wind turbine. The device has a platform with a number of standing surfaces, at least one of the standing surfaces being substantially horizontal when the safety device is used as intended, and also having a securing system for securing the platform to a hub of the rotor and/or to an inner face of a rotor housing of the rotor.

Claims

1. A safety device for the safety of an operator in a rotor, comprising

a platform having a number of standing surfaces of which when the safety device is used as intended at least one standing surface lies substantially horizontal,

fixing device for fixing the platform on a hub of the rotor and/or on an inner side of a rotor housing of the rotor.

2. The safety device according to claim 1

wherein the safety device is mounted fixed on the hub of the rotor and/or on the inner side of the rotor housing.

3. The safety device according to claim 1

wherein the platform is arranged relative to each two connecting flanges of the rotor blades on the hub so that a standing surface on a side of the platform facing the rotor housing lies substantially parallel to an vertex face of the hub.

4. The safety device according to claim 1

wherein the platform divides a hollow chamber between the hub and the inner side of the rotor housing into substantially at least two hollow chamber regions separated from one another.

5. The safety device according to claim 1

wherein the platform comprises three platform elements each with at least one standing surface which form a triangle.

6. The safety device according to claim 5

wherein at least one of the platform elements has at least one opening as access for an operator.

7. The safety device according to claim 5

wherein the platform comprises bridging elements which span the contact points of the platform elements at the respective inner sides of the platform elements facing a rotor axis (R).

8. The safety device according to claim 7

wherein the platform elements stand at their inner sides facing the rotor axis (R) at an angle (β

) of 120°

to the inner sides of the respective adjoining bridging elements which are likewise directed towards the rotor axis (R).

9. The safety device according to claim 5

wherein the fixing device comprises strut elements which connect the platform at the contact points of the platform elements to the inner side of the rotor housing.

10. The safety device according to claim 9

wherein the strut elements are fastened in the region of interfaces of segments of the rotor housing.

11. The safety device according to claim 9, further comprising

flat plates as platform elements and/or bridging elements and/or strut elements.

12. The safety device according to claim 5

wherein an extension (a) of the platform elements transversely to the rotor axis (R) comprises at least 1 m, as well as at most 5 m.

13. A rotor with a safety device according to claim 1.

14. A wind turbine with a safety device according to claim 1.

16. The safety device according to claim 1,

wherein the safety device is adapted for a wind turbine.

17. The safety device according to claim 6,

wherein at least one of the platform elements has at least one closing element for closing the opening.

18. The safety device according to claim 12,

wherein the extension (a) of the platform elements transversely to the rotor axis (R) comprises at least 1.3 m, as well as at most 4 m.

19. The safety device according to claim 12,

wherein the extension (a) of the platform elements transversely to the rotor axis (R) comprises at least 1.5 m, as well as at most 3 m.

15. A method for securing an operator with a safety device in a rotor the method comprising:

positioning at least one standing surface of a platform of the safety device, when the safety device is used as intended, substantially horizontally wherein the platform is fixed on a hub of the rotor and/or on an inner side of a rotor housing of the rotor.