Torque support arrangement for a wind power gearbox

1. A torque bracket arrangement for a wind power gearbox for transmitting a supporting force to a support structure of a wind power plant, the torque bracket arrangement comprising:

at least one radial support arm having an associated opening configured to receive a horizontal support pin, the at least one radial support arm being provided on a gearbox side and being configured to establish a detachable connection to at least one corresponding opening of a support eyelet unit arranged on the support structure,

wherein the at least one corresponding opening of the support eyelet unit includes an elastomer bearing bush into which the horizontal support pin is configured to be inserted,

wherein the elastomer bearing bush has differing rigidities depending on a load, and

wherein the elastomer bearing bush consists of at least one soft region of low rigidity and at least one comparatively harder region of greater rigidity.

2. The torque bracket arrangement according to claim 1 , wherein the soft region of lower rigidity is configured to establish a permanent contact between the support eyelet unit and the support pin, and

wherein the hard region of higher rigidity is configured to contact the support eyelet unit and the support pin only under a defined minimum load.

3. The torque bracket arrangement according to claim 1 , wherein the soft region of the elastomer bearing bush has a roll rigidity that is up to 50% lower than that of the hard region.

4. The torque bracket arrangement according to claim 1 , wherein the soft region of low rigidity is arranged in series with the hard region of higher rigidity.

5. The torque bracket arrangement according to claim 4 , wherein the soft region of lower rigidity is formed by at least one outer ring integrally formed on a hollow cylindrical elastomer bearing bush.

6. The torque bracket arrangement according to claim 1 , wherein the inner and/or outer circumferential surface of the elastomer bearing bush is conical.

7. The torque bracket arrangement according to claim 1 , wherein the elastomer bearing bush has a soft region which is formed by an inner radial and/or outer radial soft elastomer ring inserted into a hard elastomer body having a substantially H-shaped cross section, or by a circumferential groove.

8. The torque arrangement according to claim 1 , wherein the at least one opening of the support eyelet unit has a diameter which is greater than the diameter of the opening in the support arm in order to receive the elastomer bearing bush.

9. The torque bracket arrangement according to claim 1 , wherein the support pin forms a press fit with the opening in the support arm.

10. The torque bracket arrangement according to claim 1 , wherein the support eyelet unit consists of two support eyelets arranged parallel to and spaced apart from one another, in a gap between which the support arm engages in such a way that the opening in the support arm is in congruent alignment with the openings at the support eyelets.

11. The torque bracket arrangement according to claim 1 , wherein the support eyelet unit and the support arm are manufactured from a machined steel material.

12. A wind power plant for generating electrical energy, the wind power plant comprising:

a wind power gearbox mounted on a support structure, and

at least one torque bracket arrangement according to claim 1 ,

wherein the at least one torque bracket arrangement is arranged between the wind power gearbox and the support structure.