Speed reducer connecting shaft reinforcing mechanism

The utility model belongs to the field of blending machines. The utility model discloses a speed reducer connecting shaft reinforcing mechanism. An existing machine driving shaft is connected with a speed reducer through a 10 * 8 key. After the machine is used for three months, noise is generated; proposed now is the following scheme, the device comprises a mounting base, a driving motor is arranged on the top side of the mounting base; a driving shaft is fixedly mounted on an output shaft of the driving motor through a coupler; a speed reducer is arranged on one side of the driving shaft; theutility model has a simple structure, 4-M8 bolts are adopted to fixedly connect with a threaded groove in the speed reducer; original connection of a single key and a key groove is changed into composite connection of a fastener, the key and the key groove. Reversing shearing force is effectively shared, no gap is generated between a key and a key groove, noise is effectively prevented, meanwhile, the pressing rod moves