Main Shaft of A Wind Turbine
The main shaft of a wind turbine is a core component for torque transmission in wind turbines. It adopts a hollow structure design made of stainless steel, mainly connecting the turbine blades to the turbine base and undertaking the functions of mechanical energy transmission and load support. The machining of its inner hole requires the use of a deep-hole drilling and boring machine with a heightened headstock, and its manufacturing proces s involves high-precision procedures such as precision casting, forging, and heat treatment. During operation, this component needs to bear three types of loads: axial force, radial force, and bending moment. It generally adopts a bearing arrangement of "one end fixed and one end floating": the fixed end is supported by preloaded double-row tapered roller bearings, which can reduce axial runout by 75%; the floating end only bears radial loads. Wear repair methods include traditional welding repair, electroplating process, and on-s...