Force self-adjusting type stone crusher

The utility model discloses a force self-adjusting type stone crusher which comprises a crusher main body, a plurality of fixing plates are fixedly connected to the two sides of the interior of the crusher main body, micro motors are fixedly connected to one sides of the interiors of the fixing plates in the middle and on the upper portion of the crusher main body, and threaded rods are arranged at the driving ends of the micro motors. And one side of the middle of the threaded rod is in threaded connection with a threaded block, one side of the threaded block is fixedly connected with a rotating groove, and a first crushing roller or a second crushing roller is inserted into the rotating groove. One end of the first crushing roller and one end of the second crushing roller are both fixedly connected with motor shafts, and one end of each motor shaft is provided with a motor box. By means of the structure, the first crushing roller and the second crushing roller are rotated through the motor in the motor box,