Run-out testing fixture for rotor

The utility model discloses a run-out testing fixture for a rotor, which comprises a base, a detection mechanism is arranged on one side above the base, a rotating shaft used for driving the detected rotor to rotate is arranged on one side of the detection mechanism above the base, a first mounting cavity is arranged in the base, and the rotating shaft extends into the first mounting cavity and is connected with a first gear. One side of the first gear is engaged with a second gear, and the second gear is connected with a driving mechanism used for driving the second gear to rotate. When the device is used, the driving mechanism drives the second gear to rotate so as to drive the first gear and the rotating shaft to rotate, so that the to-be-tested rotor can rotate automatically; and the detection mechanism can detect the device conveniently. 本实用新型公开了转子用跳动检具，包括底座，所述底座上方一侧设有检测机构，所述底座上方位于检测机构一侧设有用于驱动被检转子转动的转轴，所述底座内部开设有第一安装腔，所述转轴伸入第一安装腔内部并连接第一齿轮，所述第一齿轮的一侧啮合有第二齿轮，所述第二齿轮上连接有用于驱动其转动的驱动机构，本实用新型能够在使用装置时通过驱动机构驱动第二齿轮转动