Adapter bracket for engine starting torque measurement test

The invention belongs to the technical field of engine measurement, and discloses a switching support for an engine starting torque measurement test, which comprises an auxiliary support rack and a switching section, the switching section is of a structure with a through hole inside, and a torque measurement sensor is fixedly arranged in the through hole of the switching section. The two ends of the torque measuring sensor are connected with an engine accessory casing and a starter through spline shafts respectively, the switching section is arranged in the auxiliary supporting rack, a spring is further arranged in the auxiliary supporting rack, and the spring provides elastic pressure for the switching section. Spline matching is used for replacing a coupler to complete connection between the torque measurement sensor and the starter transmission shaft and connection between the torque measurement sensor and the engine accessory transmission shaft, the automatic centering function is achieved during operatio