Analysis of the Fatigue Strength Calculation Method of Crane Reducer

Abstract

The calculation method of equivalent load for crane reducer under variable load condition is analyzed. Application factor formulas for the calculation of gear fatigue strength and bearing fatigue life are deduced,and the index value of the fatigue strength calculation of gear is recalculated based on the life coefficient. In addition,the differences of load spectral coefficients in gear and bearing fatigue calculations are pointed out. The calculation method has a guiding significance for the design and calculation of crane reducer.

Keywords

• Crane reducer
• Fatigue strength
• Fatigue life
• Equivalent load
• Application factor