Method for eliminating gap between hub and generator connecting flange

The invention relates to the technical field of wind turbine generator flange connection, and particularly discloses a method for eliminating a gap between a hub and a generator connecting flange, and the method comprises the steps: obtaining the axial force values of outer ring bolts before and after rotation of the hub, and carrying out the calculation to obtain the change value of the axial force values of the outer ring bolts in the same group; comparing the change value with a design value, and judging whether the requirement is met or not; if the requirements are not met, the gap between the hub and the generator connecting flange is measured, the gap is filled with the gasket assembly, and the gap between the hub and the generator connecting flange is eliminated, so that the gap between the hub and the generator connecting flange is effectively eliminated under the condition that the hub is not returned to a factory for maintenance; the problem of frequent bolt breakage caused by flange gaps is effecti