Drive device for a wind mill comprising a large pulley (21) disposed on a main shaft (22) and at least one belt (27) or chain adapted to transfer rotation from the pulley (21) to a generator (30, 31). The pulley (21) is rotationally coupled to at least two secondary shafts (23, 24), which are dispos
Drive device for a wind mill comprising a large pulley (21) disposed on a main shaft (22) and at least one belt (27) or chain adapted to transfer rotation from the pulley (21) to a generator (30, 31). The pulley (21) is rotationally coupled to at least two secondary shafts (23, 24), which are disposed parallel to the main shaft (22). One or more belts (27), which transfer the rotation, extend over the pulley (21) and the secondary shafts (23, 24). The secondary shafts (23, 24) are in turn rotationally coupled to at least one, preferably two, electric generators (30, 31).
대표청구항▼
1. A drive device for a wind turbine comprising: a large belt disc arranged on a main shaft and at least one first belt to transmit rotation from the large belt disc to a single electrical generator, the large belt disc being in in rotational connection with at least two secondary shafts which are a
1. A drive device for a wind turbine comprising: a large belt disc arranged on a main shaft and at least one first belt to transmit rotation from the large belt disc to a single electrical generator, the large belt disc being in in rotational connection with at least two secondary shafts which are arranged in parallel with, and substantially coplanar to, the main shaft and each other;wherein the at least two secondary shafts are in turn rotationally connected to the single electrical generator;wherein the rotational connection between the large belt disc and the at least two secondary shafts is via the at least one first belt; andwherein the at least one first belt extends continuously around the large belt disc and the at least two secondary shafts. 2. The drive device according to claim 1, wherein the at least two secondary shafts are three secondary shafts. 3. The drive device according to claim 2, wherein the secondary shafts are arranged around the large belt disc at a same angular distance in relation to each other. 4. The drive device according to claim 1, wherein the large belt disc and the main shaft are integrated. 5. The drive device according to claim 1, wherein the large belt disc has large through-going openings in parallel with the main shaft. 6. The drive device according to claim 1, wherein the drive device is arranged in a nacelle frame which provides mounting for the large belt disc, the main shaft, the at least two secondary shafts, and the single electrical generator. 7. The drive device according to claim 6, wherein the at least two secondary shafts are mounted so that they can be displaced sideways in the frame in relation to the main shaft and the large belt disc so that tightening of the at least one first belt can be adjusted by moving the at least two secondary shafts. 8. The drive device according to claim 6 wherein the frame comprises openings which provide access for maintenance when the drive device is arranged in a nacelle on a wind turbine as the frame has an opening towards a tower in which the nacelle is placed and that there are openings which give access through both ends of the frame, forwards via openings in the disc and the frame and backwards via openings in the frame. 9. The drive device according to claim 6, wherein the frame comprises a load-bearing wall that provides mounting for an end of the main shaft and the at least two secondary shafts. 10. The drive device according to claim 1, wherein the rotational connection between the at least two secondary shafts and the single electrical generator is via at least a second belt. 11. A drive device for a wind turbine comprising: a large belt disc arranged on a main shaft and at least one first belt to transmit rotation from the large belt disc to at least one electrical generator, the large belt disc being in in rotational connection with at least two secondary shafts which at least two secondary shafts are arranged in parallel with, and substantially coplanar to, the main shaft and each other;wherein the at least two secondary shafts are in turn rotationally connected to the at least one electrical generator;wherein the rotational connection between the large belt disc and the at least two secondary shafts is via the at least one first belt;wherein the rotational connection between the at least two secondary shafts and the at least one electrical generator is via at least one second belt; andwherein the at least one first belt extends continuously around the large belt disc and the at least two secondary shafts. 12. The drive device according to claim 11, wherein the at least two secondary shafts are three secondary shafts. 13. The drive device according to claim 12, wherein the secondary shafts are arranged around the large belt disc at a same angular distance in relation to each other. 14. The drive device according to claim 11, wherein the large belt disc and the main shaft are integrated. 15. The drive device according to claim 11, wherein the drive device is arranged in a nacelle frame which provides mounting for the large belt disc, the main shaft, the at least two secondary shafts, and the at least one electrical generator. 16. The drive device according to claim 15, wherein the at least two secondary shafts are mounted so that they can be displaced sideways in the frame in relation to the main shaft and the large belt disc so that tightening of the at least one first belt can be adjusted by moving the at least two secondary shafts. 17. The drive device according to claim 15, wherein the frame comprises a load-bearing wall that provides mounting for an end of the main shaft and the at least two secondary shafts. 18. The drive device of claim 7, wherein each secondary shaft of the at least two secondary shafts is received into an oblong-shaped hole thereby facilitating lateral movement of the at least two secondary shafts relative to the frame. 19. The drive device of claim 11, wherein the at least one second belt is tensioned via displacement of the at least one electrical generator. 20. A drive device for a wind turbine comprising: a large belt disc arranged on a main shaft and at least one first belt to transmit rotation from the large belt disc to a single electrical generator, the large belt disc being in in rotational connection with at least two secondary shafts which are arranged in parallel with the main shaft;wherein the at least two secondary shafts are in turn rotationally connected to the single electrical generator;wherein the single electrical generator is located equidistant between the at least two secondary shafts;wherein the rotational connection between the large belt disc and the at least two secondary shafts is via the at least one first belt; andwherein the at least one first belt extends continuously around the large belt disc and the at least two secondary shafts.
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이 특허에 인용된 특허 (45)
Suzuki Kunio (3615 Sierra Dr. Honolulu HI 96816), Apparatus for converting hydraulic energy to electrical energy.
Nitzpon, Joachim; Karstens, Hauke; Harms, Ulrich, Method for starting up a wind energy plant after an operation stoppage and wind energy plant which can execute the method.
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