| 摘要 |
The invention relates to a transmission device for a wind turbine. Transmission devices of said kind are used for transmitting or for discharging electrostatic energy between a rotatable rotating device and a grounding device that cannot be rotated with respect to the rotating device. For this purpose, the transmission device comprises a mounting, a sliding contact device having pressing means, and at least one electrode having adjusting means for transmitting lightening current. The electrode can form a spark gap having a sparking distance S together with a ring electrode, wherein the ring electrode can be arranged on the rotating device, or can be connected to a grounding device that cannot be rotated with respect to the rotating device. Known embodiments have the disadvantage that the lightning current transmission does not function reliably. The aim of the invention is to provide an improved transmission device for a wind turbine, wherein in particular the reliability and durability of the transmission device are to be improved. According to the invention, said aim is achieved by the characteristics of the main claim 1, in that the mounting is arranged rotationally fixed on the rotating device or in a non-rotating manner with respect to the grounding device. Furthermore, the electrode is arranged in a moveable manner with respect to the mounting by means of a tracking device having support means. The electrode is supported by way of the support means with respect to the rotating device or the ring electrode such that the sparking distance S cannot fall below a minimum dimension. |
