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CN-224228780-U - Yaw correction equipment for wind turbine generator

CN224228780UCN 224228780 UCN224228780 UCN 224228780UCN-224228780-U

Abstract

The utility model provides yaw correction equipment of a wind turbine generator, which comprises a gear box, wherein a base is arranged at the bottom of the gear box, a toothed ring is arranged at the lower side of the base, a ring seat is arranged at the bottom of the toothed ring, two symmetrically arranged sliding seats are arranged at the bottom of the base, a transmission shaft seat is arranged on the upper surface of the base, a motor is arranged at the input end of the transmission shaft seat, a gear is arranged at the output end of the transmission shaft seat, the gear is meshed with the toothed ring, the inner side of the lower surface of the toothed ring is upwards recessed to form an annular groove, a plurality of arc plates which are contacted end to end are arranged in the annular groove through limiting pieces, the thickness of the arc plates is the same as the depth of the annular groove, and the horizontal part of the sliding seat is in sliding contact with the bottom of the arc plates.

Inventors

  • ZHOU RAN
  • WANG SHAOHUA

Assignees

  • 东台市众正电力工程服务有限公司

Dates

Publication Date
20260512
Application Date
20250619

Claims (7)

  1. 1. A yaw correction device for a wind turbine generator comprises a gear box (1) and is characterized in that a base (5) is installed at the bottom of the gear box (1), a toothed ring (7) is arranged at the lower side of the base (5), a ring seat (8) is installed at the bottom of the toothed ring (7), two symmetrically arranged sliding seats (10) are installed at the bottom of the base (5), the cross section of each sliding seat (10) is L-shaped, the horizontal part of each sliding seat (10) is arranged at the lower side of the toothed ring (7), a transmission shaft seat (4) is installed on the upper surface of the base (5), a motor (3) is installed at the input end of the transmission shaft seat (4), a gear (6) is installed at the output end of the transmission shaft seat (4), the gear (6) is meshed with the toothed ring (7), an annular groove (20) is formed by upwards sinking the inner side of the lower surface of the toothed ring (7), a plurality of arc-shaped sliding seats (11) which are in contact with one another through limiting pieces, the thickness of each sliding seat (11) is identical to the depth of the annular groove (20), and the horizontal part (10) is in contact with the bottom of the arc-shaped plate (11).
  2. 2. The yaw correction device of the wind turbine generator system according to claim 1, wherein the limiting piece comprises an inner ring (12), the inner ring (12) is arranged in the toothed ring (7), the outer diameter of the inner ring (12) is identical to the inner diameter of the toothed ring (7), the insert block (21) is arranged in the middle position of one surface of the arc plate (11), a plurality of slots (17) matched with the insert block (21) are formed in the annular groove (20) at equal intervals, the insert block (21) is inserted in the slots (17), a plurality of through holes (18) identical to the slots (17) are formed in the inner surface of the toothed ring (7) at equal intervals, positioning pins (19) are inserted in channels formed by the through holes (18) and the positioning holes (22), one ends of the positioning pins (19) are contacted with the inner wall of the inner ring (12), and the inner ring (12) is connected with the toothed ring (7) through the connecting piece.
  3. 3. The yaw correction device of the wind turbine generator system according to claim 2, wherein the connecting piece comprises lugs (13), two lugs (13) are symmetrically arranged at the inner upper position of the toothed ring (7), the lugs (13) are lower than the upper surface of the toothed ring (7), two notches are formed in the upper surface of the inner ring (12), the lugs (13) are inserted into the notches, two connecting lugs (16) matched with the lugs (13) are symmetrically arranged on the inner wall of the inner ring (12), and the connecting lugs (16) are connected with the lugs (13) through fasteners formed by screws (14) and nuts (15).
  4. 4. A wind turbine yaw correction device according to claim 3, wherein a gap exists between the support lugs (13) and the connecting lugs (16), and the screw (14) is in a state that a rod part between the support lugs (13) and the connecting lugs (16) is exposed.
  5. 5. A wind turbine yaw correction apparatus according to claim 2, wherein said insert block (21) is rectangular in cross section and said slot (17) is rectangular in cross section.
  6. 6. The yaw correction device of the wind turbine generator set according to claim 1, wherein a generator (2) is installed at the output end of the gear box (1), and a triangular base (9) for connecting blades is installed at the input end of the gear box (1).
  7. 7. The yaw correction device of the wind turbine generator system according to claim 1 is characterized in that a plurality of reinforcing ribs are arranged at the bottom of the gear box (1), and the reinforcing ribs are fixedly connected with the base (5).

Description

Yaw correction equipment for wind turbine generator Technical Field The utility model relates to yaw correction equipment for a wind turbine, and belongs to the field of wind turbines. Background Wind turbine generator bias aviation school is a key technology for maximizing wind energy capturing efficiency and reducing structural load by adjusting azimuth angle of wind turbine generator cabin to always align to incoming wind direction. When the motor arranged on the base runs, the gear is driven by the meshing transmission of the gear and the toothed ring to drive the gear box which is provided with the generator and is connected with the blade triangular base to reciprocally rotate within the range of 360 degrees, so that the yaw correction function is realized. In the process, the sliding seat used for limiting the relative position of the toothed ring on the base is in continuous sliding contact with the toothed ring, and after long-term operation, the contact position of the sliding seat and the toothed ring is thinned due to friction and abrasion. Because the toothed ring and the base are installed in an embedded mode, the connecting bolts of the base and the toothed ring and the positioning structure of the toothed ring and the ring seat are required to be disassembled in sequence during replacement, and the disassembly of a single device is long. The overall replacement of the ring gear is costly and involves the gearbox being re-centered, further increasing maintenance complexity. Disclosure of utility model Aiming at the defects existing in the prior art, the utility model aims to provide yaw correction equipment for a wind turbine generator set, so as to solve the problems in the background art. The yaw correction device for the wind turbine generator comprises a gear box, wherein a base is arranged at the bottom of the gear box, a toothed ring is arranged at the lower side of the base, a ring seat is arranged at the bottom of the toothed ring, two symmetrically arranged sliding seats are arranged at the bottom of the base, the cross section of each sliding seat is L-shaped, the horizontal parts of the sliding seats are arranged at the lower side of the toothed ring, a transmission shaft seat is arranged on the upper surface of the base, a motor is arranged at the input end of the transmission shaft seat, a gear is arranged at the output end of the transmission shaft seat, the gear is meshed with the toothed ring, an annular groove is formed by upwards sinking the inner side of the lower surface of the toothed ring, a plurality of arc plates which are in contact with each other from the beginning to the end are arranged in the annular groove through limiting pieces, the thickness of each arc plate is identical to the depth of the annular groove, and the horizontal parts of the sliding seats are in sliding contact with the bottoms of the arc plates. Further, the locating part includes the inner ring, be equipped with the inner ring in the ring gear, inner ring external diameter is the same with the ring gear internal diameter, arc one side middle part position installs the inserted block, be annular equidistance in the ring channel and seted up a plurality of and inserted block matched with slots, the inserted block is installed in the slot, the ring gear internal surface is annular equidistance and has seted up a plurality of perforation the same with the slot, the locating hole with perforation alignment has been seted up to an inserted block side, install the locating pin in the passageway that perforation and locating hole formed, locating pin one end is contacted with inner ring inner wall, the inner ring is connected with the ring gear through the connecting piece. Further, the connecting piece includes the journal stirrup, two journal stirrups are installed to upper position symmetry in the ring gear, the journal stirrup is less than the ring gear upper surface, two breach have been seted up to inner circle ring upper surface, the journal stirrup is installed in the breach, two with journal stirrup matched with engaging lug are installed to the symmetry on the inner circle ring inner wall, the engaging lug is connected with the journal stirrup through the fastener that screw and nut formed. Further, a gap exists between the support lugs and the connecting lugs, and the rod part of the screw between the support lugs and the connecting lugs is in a bare state. Further, the cross section of the insert block is rectangular, and the cross section of the slot is rectangular. Further, a generator is installed at the output end of the gear box, and a triangular base for connecting blades is installed at the input end of the gear box. Further, a plurality of reinforcing ribs are arranged at the bottom of the gear box, and the reinforcing ribs are fixedly connected with the base. The utility model has the beneficial effects that: 1. The annular groove on the lower surface of the toothed ring is intern