Loadable bearing impact testing device

The invention provides a loadable bearing impact testing device, which comprises a supporting body, wherein the interior of the supporting body is of an annular cavity structure, a bearing cavity of aU-shaped structure is formed in the annular cavity, the right side of the supporting body is connected with a connecting disc, a bearing box and a turbine box in sequence, the bearing cavity is provided with a rotor shaft, the rotor shaft is connected with a turbine in the turbine box, a first test bearing and a second test bearing are arranged between the inner side of the bearing cavity and thesupporting body, a first spacer sleeve is arranged between the first test bearing and the end surface of the supporting body, a second spacer sleeve is arranged between the first test bearing and thesecond test bearing, a third spacer sleeve is arranged between the second test bearing and the bearing cavity, the outer side of the bearing cavity is provided with a permanent magnet, and a stator coil is arranged on the inne