Self-learning encoder fault detector

The utility model discloses a self-learning encoder fault detector which comprises a shell, a power supply is installed in the shell, the power supply is electrically connected with a CPU, the CPU is electrically connected with a touch screen, the touch screen is installed on the side wall of the shell, the side wall of the shell is provided with a plurality of heat dissipation openings, metal filter screens are embedded in the heat dissipation openings, and the metal filter screens are electrically connected with the CPU. The inner wall of the shell is rotationally connected with a plurality of pendulum bobs, the pendulum bobs are arranged close to the adjacent heat dissipation openings, the side walls of the pendulum bobs are fixedly connected with gears, the inner wall of the shell is slidably connected with racks, the gears are meshed with the racks, and the upper ends of the racks are fixedly connected with pulling plates. By arranging the rack, the gear, the pendulum bob and other parts, the rack can be