Driving shaft assembly capable of preventing high-speed operation loosening

The invention relates to the technical field of driving shafts, and particularly relates to a driving shaft assembly capable of preventing high-speed operation loosening. The driving shaft assembly comprises a driving shaft, wherein a gear sleeves the end part of the driving shaft; a butt joint ring is arranged on the surface of the gear; an occlusion groove is formed in the surface of the butt joint ring; occlusion teeth are inserted into the occlusion groove; the occlusion teeth are fixed on the surface of the driving shaft; inserting holes are formed in the surfaces of the occlusion teeth; connecting pins are inserted into the inserting holes; the connecting pins are inserted into the surface of the butt joint ring; and a sleeve ring sleeves the outer side of each connecting pin. The driving shaft assembly capable of preventing high-speed operation loosening, provided by the invention, has the beneficial effects that the butt joint ring is welded on the surface of the gear and the occlusion groove is forme