Recently, China's first domestic 10MW TRB (single row tapered roller) offshore wind power main bearing and China's first 16MW platform wind power main bearing have been successfully rolled off the production line at HNLY Bearing Technology Corporation.
This technology has ended the history of China's inability to develop and manufacture such high-end products, marking a big step forward in the localization and replacement of key components in the wind power industry, and solving the situation that large-megawatt wind power main bearings rely on imports.
Compared with onshore wind power, offshore wind power has harsh environment and high technical threshold, and the load on the main bearing of offshore wind power is more complex and changeable. above the service life.
This 10MW wind turbine adopts the TRB+TRB shafting structure, which is applied to the No. 1 project at sea level. The outer diameter of the bearing is 3200mm, the outer diameter of the domestic TRB series wind power main bearing is the largest, and the depth of the carburized layer is required to be more than 5mm, which is also the bearing Carburizing and quenching deformation control of ferrules presents serious challenges.
In the case that many bearing manufacturers in China failed in research and development, HNLY gave full play to its advantages in talents, technology and large investment in advanced equipment. After repeated tests, the deformation was controlled within 2mm in a very short time. The technical breakthrough has effectively guaranteed the bearing performance, thus standing out among many Chinese manufacturers to undertake the heat treatment carburizing task of the first batch of 10 sets of 3200mm prototype bearings for 10MW wind turbines in China.
The company's technological breakthrough in heat treatment technology has provided great technical assistance for accelerating the localization process of China's offshore large-megawatt-class wind power main bearings, solving the situation of large-megawatt-class wind power main bearings relying on imports, and filling the domestic gap.