Locking device of a wind turbine auxiliary drive

1. An auxiliary drive system for driving a wind turbine component, the auxiliary drive system comprising:

a motor;

an actuator for actuating the wind turbine component;

reduction gearing operationally connected with the motor for being driven by the motor and operationally connected with the actuator for driving the actuator, the reduction gearing comprising a first disk; and

a first lock and a second lock, the first and second locks each comprising a locking element that is configured to assume a first position wherein the locking element interlocks with the first disk to lock the auxiliary drive system, and a second position wherein the locking element does not interlock with the reduction gearing.

2. The auxiliary drive system according to claim 1 , wherein the first and second locks are arranged substantially on the outside of a housing of the reduction gearing, and wherein the locking elements are configured to enter through the housing to interlock with the component of the reduction gearing.

3. The auxiliary drive system according to claim 1 , wherein the first and second locks are permanently arranged with the auxiliary drive system.

4. The auxiliary drive system according to claim 1 , wherein the reduction gearing comprises multiple stages.

5. The auxiliary drive system according to claim 1 , wherein the reduction gearing comprises at least one planetary gearing stage.

6. The auxiliary drive system according to claim 1 , wherein the auxiliary drive system is a wind turbine yaw system.

7. The auxiliary drive system according to claim 1 , wherein the auxiliary drive system is installed in a wind turbine.

8. The auxiliary drive system according to claim 1 , wherein the auxiliary drive system is a wind turbine pitch system.

9. The auxiliary drive system according to claim 8 , further comprising:

an additional temporary locking instrument that is temporarily mounted in such a way that it locks with gearing on the wind turbine blade.

10. An auxiliary drive system for driving a wind turbine component, the auxiliary drive system comprising:

a motor;

an actuator for actuating the wind turbine component;

reduction gearing operationally connected with the motor to be driven by the motor and operationally connected with the actuator for driving the actuator, the reduction gearing comprising a first disk and a second disk;

a first lock and a second lock, the first lock comprising a first locking element that is configured to assume a first position wherein the locking element interlocks with the first disk to lock the auxiliary drive system, and a second position wherein the first locking element does not interlock with the reduction gearing; and

the second lock comprising a second locking element that is configured to assume a first position wherein the locking element interlocks with the second disk to lock the auxiliary drive system, and a second position wherein the second locking element does not interlock with the reduction gearing.

11. The auxiliary drive system according to claim 10 , wherein a first stage of the reduction gearing comprises the first or the second disk.

12. The auxiliary drive system according to claim 10 , wherein the first disk and the second disk are configured to rotate with the motor and wherein in a first position of the first and second disk, the locking element of the first lock can interlock with the first disk, and in a second position of the first and second disk, the locking element of the second lock can interlock with the second disk.

13. The auxiliary drive system according to claim 10 , wherein one or both of the first and second disks comprise teeth or notches around their circumference and the locking elements of the first and second locks are configured to interlock with the teeth or notches to lock the auxiliary drive system.

14. The auxiliary drive system according to claim 13 , wherein one or both of the first and second disks include a row of notches or teeth.

15. An auxiliary drive system for driving a wind turbine component comprising:

a motor;

an actuator for actuating the wind turbine component;

reduction gearing operationally connected with the motor for being driven by the motor and operationally connected with the actuator for driving the actuator;

a lock that includes a first and a second locking element, the first and second locking elements configured to assume a first position to interlock with a component of the reduction gearing to lock the auxiliary drive system, and a second position to not interlock with the reduction gearing.

16. The auxiliary drive system according to claim 15 , wherein the reduction gearing comprises a disk, and wherein one or both of the first locking element and the second locking element selectively interlock with the disk.

17. The auxiliary drive system according to claim 16 , wherein the disk includes two rows of notches or teeth.

18. An auxiliary drive system for driving a wind turbine component comprising:

a motor;

an actuator for actuating the component;

reduction gearing operationally connected with the motor for being driven by the motor and operationally connected with the actuator for driving the actuator; and

an eccentrically mounted lock having a locking element that is configured to assume a first position to interlock with a component of the reduction gearing to lock the auxiliary drive system and a second position in which the locking element does not interlock with the reduction gearing.