Inertial rotating axial braking device for horticultural tool

The utility model discloses an inertial rotating axial braking device for a horticultural tool, which is composed of a working axle for installing a cutter, a driven wheel, a housing and a brake pad, wherein the working axle for installing the cutter is rotationally connected with the housing on which the brake pad is arranged, the working axle is connected with the driven wheel through screw threads, a bulge is arranged on the outer end surface of the driven wheel and a pull piece is fixedly arranged on the working axle and is arranged on a position capable of making the rotating plane of the pull piece positioned in the height range of the bulge. After a power source of the utility model is cut off, inertia difference is arranged between the working axle, a rotating piece (the cutter, etc.) installed on the working axle and the driven wheel, the working axle and the driven wheel generate opposite rotation, the driven wheel is axially moved until the end surface of the inner side of the driven wheel is contacted and acted on the brake pad installed on the housing, therefore the utility model can reduce the requirements of materials of relevant components so as to have the advantages of cost reduction, simple structure, high braking reliability and convenient processing and maintenance and achieve the standard requirement.