Compression resistance testing device for steering gear box bearing

The utility model relates to the technical field of part testing, in particular to a compression resistance testing device for a steering gear box bearing, which is convenient for carrying out position constraint on the steering gear box bearing, avoids measurement errors caused by position change of the steering gear box bearing and improves reliability. Comprising a bottom frame, a platform plate, a support, a testing hydraulic cylinder, a push rod, a pressing piece and a constraint measuring device, the middle of the top end of the bottom frame is connected with the bottom end of the platform plate, the four corner sides of the top end of the bottom frame are connected with the bottom ends of the four corners of the support, and the middle of the top end in the bottom of the support is connected with the top end of the testing hydraulic cylinder; the right side of the top end of the pressing piece is connected with the bottom end of the pull rope, the pull rope is movably connected into the pull rope encod