Shafting rotation fine adjustment mechanism

A shafting rotation fine adjustment mechanism belongs to the technical field of rotating shaft adjusting devices and comprises a clamping end, a fine adjustment rod, a fine adjustment rod support, a fine adjustment knob, a top end supporting spring, a spring cover, a movable frame, a fixed frame and a positioning bolt. On the basis of not changing the self structure of the rotating shaft, the clamping end applies friction to the rotating shaft, so that the rotating shaft can slightly and stably rotate. The fixed frame and the movable frame are used in cooperation and can be vertically adjusted according to the heights of different rotating shafts. The clamping ends are fixed in a detachable mode, and the clamping ends with shaft holes of different sizes can be selected according to different shaft diameters. Fine threads are adopted on the fine adjustment knob, when the knob is pushed in or retreated, the fine adjustment knob is matched with the top end supporting spring to push the fine adjustment rod to rot