Variable-frequency cement grinding mechanism

The utility model relates to a variable-frequency cement grinding mechanism, which aims at solving the technical problem of large workload caused by the fact that a sealing cover needs to be wholly detached during current inspection, and comprises a cylinder body and a sealing structure, the closed structure is arranged at an access hole formed in the outer wall of the cylinder body; the sealing structure comprises an arc-shaped sealing plate and an arc-shaped cover plate; the arc-shaped sealing plate is fixedly arranged at the access hole in the outer wall of the cylinder body through a bolt; the arc-shaped cover plate is clamped in a clamping groove formed in the outer wall of the arc-shaped sealing plate; wherein the arc-shaped cover plate is in closed fit with an inspection opening formed in the inner bottom wall of the clamping groove; wherein two sides of the arc-shaped cover plate are respectively positioned and matched with the arc-shaped sealing plate through a positioning structure, and the arc-shap