Transmission gear contact spot test bench

The utility model discloses a transmission gear contact spot test bench comprising a rectangular bottom plate, a driving assembly used for driving a gearbox to be tested and a loading assembly used for applying a load to the gearbox to be tested, and the driving assembly and the loading assembly are integrally installed on the bottom plate through a driving base and a loading base respectively; the surface of the bottom plate is divided into a longitudinal adjusting area and a transverse adjusting area in the length direction, the longitudinal adjusting area is provided with a plurality of longitudinal T-shaped grooves formed in the length direction and a first linear driving mechanism, and the transverse adjusting area is provided with a plurality of transverse T-shaped grooves formed in the width direction and a second linear driving mechanism; the driving base is installed on the longitudinal T-shaped groove through bolts and connected with the driving end of the first linear driving mechanism. And the loa