Hydraulic machinery blade abrasion testing device and testing method

The invention relates to a hydraulic machinery blade abrasion testing device and method, the device comprises a liquid conveying unit, a solid conveying unit, a mixed medium separating unit and a testing unit, the liquid conveying unit conveys liquid to the testing unit through a liquid input port; the solid conveying unit provides solid particles for the testing unit through the solid input port; and the mixed medium separation unit is provided with an input port and an output port, the input port is connected with the mixed medium output port, the output port is connected with the liquid conveying unit, and the mixed medium separation unit is used for separating the solid-liquid mixed medium and conveying separated liquid to the liquid conveying unit for cyclic utilization. According to the invention, the technical problems that accurate configuration cannot be carried out according to actual working conditions and the wear state of the blade surface cannot be detected during blade wear test of the blade ty