The invention relates to the technical field of
mechanical equipment, and discloses a device for changing the rotating speed based on gravity variations to prevent a feeding
machine from being blocked. The device comprises a supporting plate. Due to the cooperative use of a threaded stud, a first sliding block, a small rotating wheel and a transverse rod, the conveying speed is increased, a blocked feeding
pipe is automatically dredged, the phenomenon that a
machine breaks down due to the fact that the
machine cannot run normally is avoided, and the service life period of the device is prolonged. Due to the cooperative use of a baffle, a connecting rod and a connecting block, when a bearing plate descends to drive the baffle to be closed, the blocked feeding
pipe can be automatically closed, and conveying burdens of the feeding
pipe are relieved. Due to cooperative use of the baffle and the connecting rod, consequent reactions are in linkage, the linkage of the whole device is improved, and operation is easier and more convenient. Dredging can be performed by means of gravity variations of the bearing plate, and no other
external energy needs to be supplied, so that the whole device is more intelligent and more
environmentally friendly, and the using cost is lower.