Process parameter optimization method for improving dry running capacity of speed reducer

The invention provides a process parameter optimization method for improving the dry running capability of a speed reducer, which comprises the following steps of: determining the purpose of an orthogonal test according to the specific requirements of the dry running capability of the existing speed reducer; the test index is dry running time of the speed reducer; main process control parameters of the dry running time of the speed reducer are selected as test factors, and the number of levels of the test factors is determined according to the value range of each test factor; performing specific design on each test factor and different levels of each test factor, and designing a factor level table; an equal-level orthogonal table mode is selected and recorded as L9 (34), the number of tests is 9, the factor level number is 3, and the factor number is 4; primary and secondary sequence and optimal level analysis; and obtaining an optimal level combination of each test factor by using the optimal level and the p