Main transformer clamp upper supporting plate bearing capacity test device

The invention relates to a main transformer clamping piece upper supporting plate bearing capacity test device, which comprises a test box and a test base, wherein supporting legs are installed on theside wall of the bottom of the test box, the test base is installed below the test box, a lifting bearing plate is installed in the test box in a sliding mode, a mounting frame is mounted on one sideof the top of the test box, a second hydraulic rod is mounted on the outer side of the mounting frame, and a push plate is mounted at the telescopic end of the second hydraulic rod; when the liftingbearing plate falls suddenly, the lifting bearing plate firstly makes contact with a buffer plate of a protection mechanism, a spring is compressed while a telescopic rod is driven to move downwards,hydraulic oil in an inner cylinder is pressed into an outer cylinder through a piston via a buffer hole, through the elastic deformation of the spring and the gradually changing buffer hole, the totalarea of hydraulic oil passin