Roller lubrication performance measuring and testing device

A roller lubrication performance measuring and testing device, comprising:

• a workbench;
• a supporting mechanism comprising a frame and two arc-shaped guide rails arranged in the frame, wherein the frame is arranged on the workbench, the arc-shaped guide rails are slidably matched with the frame, inner arc surfaces of the two arc-shaped guide rails are arranged oppositely, and the two arc-shaped guide rails are fixedly connected;
• a roller rotatably connected to a bottom one of the arc-shaped guide rails;
• a contact ring arranged between the inner arc surfaces of the two arc-shaped guide rails, wherein an outer surface of the contact ring is used for abutting against a surface of the roller, and a front end of the contact ring is provided with a retaining ring for abutting against a side wall of the roller;
• a first driving mechanism, wherein a driving end of the first driving mechanism is connected with the contact ring, and the first driving mechanism is used for driving the contact ring to rotate, so that the contact ring generates friction with the surface of the roller;
• a second driving mechanism, wherein a driving end of the second driving mechanism is connected with the bottom one of the arc-shaped guide rails, and the second driving mechanism is used for driving the bottom one of the arc-shaped guide rails to slide relative to the frame so as to adjust pressure between the roller and the outer surface of the contact ring;
• and
• an image acquisition device used for acquiring oil film images on the surface of the roller.