Research on load coefficient for high contact ratio high-gears based on strain testing

Regarding the issue of no standard basis for selecting the load coefficient in the design of high-gears, this paper uses the resistance method to measure the strain at the root of high-gear by building a test rig, and obtains the variation law of tooth root strain under different torques and speeds. Based on the result, the dynamic load coefficient, load distribution coefficient, and load distribution coefficient are calculated according to their definitions, and compared and corrected with the theoretical calculation results.