Yunda Share obtains patent related to wind turbine main shaft bearing; the lifting fixture can prevent the bearing inner ring from fracturing due to hole setting.

2026-03-25 17:37:02

March 24 News: According to information from the National Intellectual Property Administration, Yunda Energy Technology Group Co., Ltd. has applied for a patent titled “Single-Row Tapered Roller Bearing for Wind Turbine Main Shaft and Its Lifting Tool.” The authorization announcement number is CN224000894U, with an authorization announcement date of March 17, 2026. The application number is CN202520762109.2, with a publication date of March 17, 2026, and an application date of April 22, 2025. The inventors are Sun Chaoyang, Yuan Binshu, Zhao Haiyan, Ying Huadong, and Yan Shikuang. The patent agency is Beijing Jiajia Intellectual Property Agency Co., Ltd., with patent agent Wang Xuewen. The classification codes are B66C1/44 and F16C19/36.

Patent Abstract: The utility model discloses a single-row tapered roller bearing for wind turbine main shafts and its lifting tool, involving wind turbine bearing technology. To solve the problem that existing lifting methods can easily cause the inner ring of the bearing to fracture, the lifting tool is used with a detachable bearing inner ring set within the single-row tapered roller bearing. The large end outer periphery of the bearing inner ring is shaped as a conical surface. The lifting tool includes two semi-ring clamps, which are detachably connected via fasteners. The clamps are equipped with an inner conical surface that fits with the conical surface of the bearing inner ring. This design allows for safe lifting of the bearing inner ring without the need to set lifting holes on the inner ring, thereby avoiding fractures caused by such holes.

Yunda Co., Ltd. was established on November 30, 2001, and listed on the Shenzhen Stock Exchange on April 26, 2019. Its registered address and office are located in Hangzhou, Zhejiang Province. It is a leading domestic wind turbine manufacturer with strong R&D capabilities and full industry chain advantages.

Main business includes the research, production, and sales of large wind turbine generators, classified under Shenwan Industry Category: Power Equipment - Wind Power Equipment - Wind Turbines, involving energy storage, offshore wind power, wind energy, and related concepts.

In 2025, Yunda’s revenue reached 29.402 billion yuan, ranking first in the industry, with industry averages and medians also at this level. The main business revenue breakdown is: wind turbine revenue of 26.434 billion yuan (89.90%), new energy engineering EPC services of 1.454 billion yuan (4.94%), other revenue of 1.131 billion yuan (3.85%), and power generation income of 384 million yuan (1.31%). Net profit was 335 million yuan, also ranking first in the industry, with industry averages and medians at the same figure.

Recent patent portfolio of Yunda Energy Technology Group Co., Ltd.:

No.	Patent Name	Type	Legal Status	Application No.	Application Date	Publication Number	Publication Date	Inventors
1	Method, Device, Equipment, and Storage Medium for Wind Turbine Control	Invention Patent	Effective after substantive examination, published	CN202610106382.9	2026-01-27	CN121576222A	2026-02-27	Wang Ruiliang, Lu Juntao, Chen Qian, Yang Chong, Wang Zhen, Feng Le
2	Multi-Degree-of-Freedom Cantilever Lifting Device	Invention Patent	Effective after substantive examination, published	CN202610101163.1	2026-01-26	CN121573614A	2026-02-27	Cui Feng, Xu Yinjie, Zhang Tingting, Li Hongfeng, Yan Shikuang, Zhang Xinwei, Xu Zhenyuan
3	Real-Time Control Method, Device, and Equipment for Wind Turbines Based on Thrust Estimation	Invention Patent	Effective after substantive examination, published	CN202610014515.X	2026-01-07	CN121474051A	2026-02-06	Mu Zheyue, Wang Ruiliang, Lu Juntao, Zhang Peicheng, Chen Qian, Wang Xiao, Xu Yili, Jin Huabin, Fan Zenghui
4	Wind Turbine Torque Control Method, Device, Equipment, and Medium	Invention Patent	Published	CN202610014816.2	2026-01-07	CN121630640A	2026-03-10	Xia Zhaoshun, You Yunhan, Li Ya, Liu Weijiang, Zhan Yangyan
5	Offshore Wind Double-Fed Generator and Its Nacelle System and Cooling Method	Invention Patent	Granted	CN202610003017.5	2026-01-05	CN121452142B	2026-03-17	Chen Zhongya, Lü Xufeng, Zhou Mengyu, Liang Bin, Ji Xu, Liu Yibei, Chen Tong
6	Deep-Sea Floating Wind Turbine Nacelle System and Wind Turbine	Invention Patent	Effective after substantive examination, published	CN202511989522.3	2025-12-26	CN121408166A	2026-01-27	He Xianzhao, Chen Zhongya, Zhou Mengyu, He Junwei, Li Tao, Lü Xufeng, Chen Tong, Liang Bin, Ji Xu, Liu Yibei
7	Backup Power Storage Method, Device, and Medium for Pitch System	Invention Patent	Published	CN202511975890.2	2025-12-25	CN121710426A	2026-03-20	Zhan Shaohui, Wang Qingfeng, Wang Qingfu, Liu Jie, Li Shihao, Chen Yu
8	Cone Roller Bearing Inner Ring Lifting Tool for Wind Turbine Main Shaft	Invention Patent	Effective after substantive examination, published	CN202511924216.1	2025-12-19	CN121376800A	2026-01-23	Lu Qingfeng, Cui Feng, Yan Shikuang, Li Hongfeng, Chen Bo, Wang Yiqing, Chen Lifeng, Sun Chaoyang
9	Wind Power Plant and Energy Storage Cooperative Inertia Response Control Method	Invention Patent	Published	CN202511915949.9	2025-12-18	CN121618497A	2026-03-06	Li Wei, Liu Jianyu, Qiu Jian, Zheng Weijian, Zhao Haiyan, Gao Kai, Wang Ruiliang, Chen Yaoji, Chen Qian, Deng Liping, Chen Feng, Yang Chong, Zhang Jinghan, Shan Zongjun, Wu Qian
10	Wind Turbine Blade Design and Performance Prediction Method, Device, Equipment, and Medium	Invention Patent	Published	CN202511899342.6	2025-12-16	CN121638054A	2026-03-10	Yang Yuxin, Bai Lu, Bai Cong’er, Liu Yong, Wang Xiaofang, Yu Zhaosheng
11	Yaw Motor Anti-typhoon Performance Determination Method, Device, Equipment, and Storage Medium	Invention Patent	Published	CN202511873248.3	2025-12-12	CN121676279A	2026-03-17	Li Ya, Gao Liqun, Lou Yufang, Zhang Wei, Huang Hehao
12	Slip Ring Chamber Ventilation Control Method, System, Offshore Double-Fed Generator, and Storage Medium	Invention Patent	Published	CN202511823916.1	2025-12-05	CN121557066A	2026-02-24	Qian He, Ge Yao, Zhao Zhijian, Lin Honghui, Xiang Feng, Yao Yingcong
13	Wind Turbine Blade Defect Detection Method, Device, Equipment, and Storage Medium	Invention Patent	Published	CN202511817256.6	2025-12-04	CN121639640A	2026-03-10	Wang Xin, Wang Chaoqun, Pan Donghao, Chen Tong, Zhan Yangyan
14	Fatigue Health Monitoring Method, Device, Equipment, and Medium for Wind Turbine Structure	Invention Patent	Effective after substantive examination, published	CN202511768185.5	2025-11-28	CN121229336A	2025-12-30	Mu Zheyue, Feng Xiangheng, Wang Ruiliang, Chen Qian, Zhang Peicheng, Liu Wei, Tan Shaoyi, Li Feiyue
15	Voltage Source Control Method, Device, and Medium for Offshore Wind Turbines	Invention Patent	Effective after substantive examination, published	CN202511775205.1	2025-11-28	CN121484887A	2026-02-06	Wen Desheng, Hua Bin, Yang Jing, Zhao Zhijian, Xu Guodong, Zhang Zhenxiao, Zhang Xuesong, Huang Wen’an, Wang Jinming, Du Hang, Wu Qian, Chen Kewen
16	Vibration Frequency Analysis Method, Device, Equipment, and Medium for Wind Turbines	Invention Patent	Effective after substantive examination, published	CN202511775210.2	2025-11-28	CN121520139A	2026-02-13	Liu Wei, Zhao Haiyan, Wang Ruiliang, Chen Qian, Zhang Peicheng, Zhang Changchun, Yang Chong, Qiu Huijie
17	Fault Handling Method, Device, Equipment, and Medium for Wind Turbine Based on Multimodal Information	Invention Patent	Granted	CN202511714475.1	2025-11-21	CN121167314B	2026-03-20	Hu Mengting, Wang Lin, Zhu Changjiang, Chen Jing, Zhang Wenqing, Wu Luyu, Sun Jingyu
18	Blade Aeroelastic Stability Optimization Method, System, Electronic Device, and Storage Medium	Invention Patent	Effective after substantive examination, published	CN202511697774.9	2025-11-19	CN121502950A	2026-02-10	Wang Ruiliang, Chen Zeshuai, Feng Xiangheng, Chen Qian, Zhang Peicheng, Xu Yili
19	Blade Defect Detection Method, Computer Program Product, and Equipment	Invention Patent	Effective after substantive examination, published	CN202511641700.3	2025-11-11	CN121437481A	2026-01-30	Wang Chaoqun, Wang Xin, Chen Weixiang, Liu Weijiang, Pan Donghao
20	Hub Fatigue Level Determination Method, Device, Equipment, and Medium for Wind Power Generators	Invention Patent	Effective after substantive examination, published	CN202511609456.2	2025-11-05	CN121413372A	2026-01-27	Cai Li, Weng Haiping, Chen Chen, Wang Xiaoyuan, Ding Jie

[Additional patents continue in similar format]

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