US 12,234,659 B2
Tower section and wind generating set
Jing Fang, Jiangsu (CN); Zhu Zhang, Jiangsu (CN); and Long Ma, Jiangsu (CN)
Assigned to JIANGSU GOLDWIND SCIENCE & TECHNOLOGY CO., LTD., Jiangsu (CN)
Appl. No. 17/904,618
Filed by JIANGSU GOLDWIND SCIENCE & TECHNOLOGY CO., LTD., Jiangsu (CN)
PCT Filed Oct. 10, 2020, PCT No. PCT/CN2020/120171
§ 371(c)(1), (2) Date Aug. 19, 2022,
PCT Pub. No. WO2021/164274, PCT Pub. Date Aug. 26, 2021.
Claims priority of application No. 202010103876.4 (CN), filed on Feb. 20, 2020.
Prior Publication US 2023/0109211 A1, Apr. 6, 2023
Int. Cl. E04G 21/14 (2006.01); E04H 12/34 (2006.01); F03D 13/10 (2016.01); F03D 13/20 (2016.01)
CPC E04G 21/142 (2013.01) [F03D 13/10 (2016.05); F03D 13/20 (2016.05); E04H 12/342 (2013.01); F05B 2230/61 (2013.01); F05B 2240/912 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A tower section, comprising:
a tower section body, wherein through holes are provided in a side wall of the tower section body; and
at least two hoisting lugs, wherein the at least two hoisting lugs, corresponding to the through holes, are provided on the tower section body, and are movable between a first position extending out of the tower section body and a second position retracting into the tower section body to hoist the tower section,
wherein each hoisting lug comprises a main body portion, which is located in the tower section body, and an extending-out portion, which extends out of the tower section body when the each hoisting lug is located at the first position, a bearing is sleeved on an outer circumference of the extending-out portion;
wherein an outer ring of the bearing is rotatable around a central axis of each hoisting lug, and a sling is sleeved on the outer ring of the bearing during hoisting of the tower section.