Steel beam shear nail derusting grinding head

The utility model relates to the technical field of steel beam shear nail derusting tools, in particular to a steel beam shear nail derusting grinding head which comprises a cylinder with one closed end, three axial installation grooves are evenly formed in the cylinder in the circumferential direction, and a steel wire brush is installed in each installation groove through a clamping assembly. And a gap is formed by the three steel wire brushes at the axis in the cylinder body and is used as a derusting and polishing position of the steel beam shear nail. A through hole is formed in the center of the closed end of the cylinder, and a connecting rod is fixed through a connecting assembly and connected with a rotating shaft of the electric hand drill. The device is not limited by space, the exposed parts of the shear nails can be located within the polishing range, all-directional rust removal and polishing can be conducted on the shear nails rapidly and evenly, the polishing effect is guaranteed to the maximu