Environment-friendly feeder chain breakage protection system

The utility model discloses a chain breakage protection system of an environment-friendly feeder. Machine body, a rotating shaft is rotationally mounted on the machine body; a base is fixedly mountedon one side of the machine body; a sliding groove is formed in the top of the base. A sliding groove is formed in the base, a movable base is slidably installed in the sliding groove, the top of the movable base extends out of the sliding groove and is fixedly provided with a first positioning plate, a rotating speed sensor is arranged above the first positioning plate, a second positioning plateis arranged above the rotating speed sensor, the first positioning plate and the second positioning plate are each of an arc structure, and a threaded hole is formed in the side, located in the sliding groove, of the movable base. The utility model has reasonable design, the feeding machine is simple in structure, convenient to operate, convenient to install, fix and detach the rotating speed sensor, and convenient to adju