Attitude adjustment calculation method for guiding centering of main speed reducer

The invention relates to the technical field of attitude adjustment direction of a main speed reducer, in particular to an attitude adjustment calculation method for guiding centering of the main speed reducer, which comprises the following steps of: 1, mounting two dial indicators Z1 and Z2 on an output shaft of a gearbox, and respectively mounting two dial indicators Z3 and Z4 on an input shaft of the main speed reducer; 2, when the input shaft of the main speed reducer and the output shaft of the gearbox rotate, respectively recording displacement data of the dial indicators Z1, Z2, Z3 and Z4 in the up, down, left and right directions; 3, respectively calculating angular differences and real deviations corresponding to Z1, Z2, Z3 and Z4 according to the displacement data in the step 2; 4, the radian deviation M1 of the main speed reducer in the left-right direction and the radian deviation M2 of the main speed reducer in the up-down direction are calculated; 5, calculating the condition that the main speed