Rolling bearing lubricating grease rolling deposition film soaking characteristic test bed and test method thereof

The invention discloses a rolling bearing lubricating grease rolling deposition film soaking characteristic test bed and a test method thereof. Existing research on soaking characteristics of a deposited film formed in the process of lack of fat is insufficient. A steel roller servo motor drives a steel roller to rotate; a lifting platform drives a greasing rod to lift; a disc servo motor drives the disc to rotate through a main shaft; the top surface of the disc make contact with the bottom of the ball on the steel roller, and pre-pressure exists between the disc and the ball; the greasing rod is positioned above the disc; a vertical turntable is driven by a frame torque motor; a micro-feeding mechanism bracket is fixed on the movable platform; a horizontally arranged traction rod and themicro-feeding mechanism bracket form a sliding pair and are in contact with the top of a cylindrical surface of the turntable; an injector is fixed on the movable platform; a piston rod of the injector contacts with the end