1results about How to "Reduce shaft diameter" patented technology

This utility model relates to the field of wind turbine pitch reducer technology, specifically to a pitch reducer structure, including an output shaft and a housing. One end of the output shaft is connected to a planetary carrier. The output shaft includes a first connecting section and a second connecting section arranged sequentially from the outside to the inside along the axial direction. The second connecting section has external threads, and the inner wall of the planetary carrier has internal threads. The first connecting section has multiple external pin holes, and the planetary carrier has multiple internal pin holes. Matching internal and external pin holes together form mounting pin holes, with locating pins inside. The planetary carrier and the output shaft are axially positioned by the matching of internal and external threads, and circumferentially positioned by the matching of mounting pin holes and locating pins. A large tapered bearing and a small tapered bearing are provided between the housing and the output shaft, with the small tapered bearing positioned close to the planetary carrier. The reducer components in this design have reliable positioning, low risk of component failure, high safety, and can significantly reduce the risk of off-center loading.