风力发电机锁紧盘内外环锥面锥角对锁紧盘的内外环摩擦力影响较大，但目前其内外环角度数值缺乏相关的理论分析支撑。为此，通过有限元仿真，对锁紧盘过盈连接后内外环不同锥角的应力分布、变形范围、应力变化进行理论分析，并对仿真数据与理论计算数据进行比较，计算理论与仿真的误差率，作出折线图。结果表明，风力发电锁紧盘内外环锥面角度在3°左右最合适。角度值越逼近3°，理论计算的过盈量值与仿真分析的过盈量值误差率最小。一般情况由外而内，锁紧盘各接触面接触压力值逐渐递减，其对应的接触面过盈量值也逐渐递减。在外环与内环接触面上，过盈量关于角度变化的线性程度最高，过盈量与角度值之比约为1.38。

In wind power generators, the taper angles of the inner and outer rings of the shrink disk have a great influence on the friction, but there is a lack of relevant theoretical analysis at present. Through the finite element simulation, the stress distribution, deformation range, and stress change of the inner and outer rings after the interference fit of the shrink disk are theoretically analyzed. Line charts are plotted to compare the simulation data with the theoretical calculation data. The results show that the optimal angle of the inner and outer ring cones of the wind power generator shrink disk is about 3°. The closer the angle value is to 3°, the smaller the error between the theoretically calculated interference value and the simulated interference value. In general, from the outside to the inside, the contact pressure values of the three contact surfaces of the shrink disk gradually decrease and the corresponding contact surface interference values gradually decrease. On the contact surface between the outer ring and the inner ring, the linearity of the relationship between the interference value and the angle change is the highest, and the ratio of the interference to the angle value is about 1.38.

陕西省科技厅项目(2018JQ1005)