A fixture for asymmetrical gear bending test

Abstract

The utility model belongs to the technical field of mechanical test equipment, more specifically, relate to a kind of clamp for asymmetric gear bending test, including adjustable gear fixing device, asymmetric gear, upper force pin shaft and lower fixed pin shaft, the adjustable gear fixing device is used to clamp asymmetric gear;Upper force pin shaft upper end is connected with gear bending fatigue testing machine;Upper force pin shaft lower end is equipped with first contact surface and second contact surface, first contact surface and second contact surface respectively with the small pressure angle side contact of two adjacent gear teeth of asymmetric gear;Lower fixed pin shaft lower end is connected with gear bending fatigue testing machine;Lower fixed pin shaft upper end is equipped with third contact surface, third contact surface and the gear tooth of asymmetric gear large pressure angle side contact;Three contact points are collinear and located on the occurrence line of asymmetric gear.The utility model shares the stress condition of gear tooth small pressure angle side, solves the problem of small pressure angle gear tooth first fracture.

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