Pitch bearing, blade, impeller of wind turbine and connecting method for wind turbine

摘要

#$%^&*AU2017359582B220200312.pdf#####(12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property (1) OrganizationIIIIIIIIIIIDIIDIIDIIIIIDIIIIDIII International Bureau (10) International Publication Number (43) International Publication Date W O 2018/120815 Al 05 July 2018 (05.07.2018) W IPO I PCT (51) International Patent Classification: (81) Designated States (unless otherwise indicated, for every F03D 80/70 (2016.01) kind of national protection available): AE, AG, AL, AM, (21) International Application Number: AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, PCT/CN2017/094450 CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, Fl, GB, GD, GE, GH, GM, GT, HN, (22) International Filing Date: HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, 26 July 2017 (26.07.2017) KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, (25)FilingLanguage: English OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, (26) Publication Language: English SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, (30) Priority Data: TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. 201611260566.3 30 December 2016 (30.12.2016) CN (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, (71)Applicant: BEIJINGGOLDWIND SCIENCE& CRE- GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, ACTION WINDPOWER EQUIPMENT CO., LTD. UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, [CN/CN]; No. 19, Kangding Road Beijing Economic & TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, Technological Development Zone, Daxing District, Beijing EE, ES, Fl, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, 100176 (CN). MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, (72) Inventor: KHVYIUZOV, Arsenii; No. 8, Boxing 1st TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, Road, Beijing Economic & Technological Development KM, ML, MR, NE, SN, TD, TG). Zone, Daxing District, 100176 (UA). Published: (74) Agent: BEIJING EAST IP LTD.; Suite 1601, Tower E2, _ with international search report (Art. 21(3)) The Towers, Oriental Plaza, No.1, East Chang An Ave., _ with amended claims (Art. 19(1)) Dongcheng District, Beijing 100738 (CN). (54) Title: PITCH BEARING, BLADE, IMPELLER OF WIND TURBINE AND CONNECTING METHOD FOR WIND TURBINE 22 23A -23 111 2 23B 11 21 32 21 212 ---- 31 FIG. 4 (57) Abstract: A pitch bearing, a blade, an impeller of a wind turbine and a connecting method for the wind turbine. There is provided a pitch bearing (30) of a wind turbine (1) comprising: an inner bearing ring (31), an outer bearing ring (32) and an extension portion (21), wherein one of the inner bearing ring and the outer bearing ring is connected to the extension portion. With the pitch bearing, a blade (10), an impeller of a wind turbine and a connecting method for the wind turbine according to the disclosure, it is possible to connect the blade to the pitch bearing without bolts, allow a lower weight for the wind turbine, increase strength and fatigue life the wind turbine, and allow a lower manufacturing cost and difficulty for the wind turbine.