Novel high-strength grinding wheel

The utility model discloses a novel high-strength grinding wheel, and relates to the technical field of grinding wheels. Comprising a grinding wheel body, connecting columns, an annular groove and oil injection holes, a fixing hole is formed in the center of the grinding wheel body, the connecting columns are installed on the front side and the rear side of the fixing hole, reinforcing ribs are installed in the annular groove, the oil injection holes are formed in the outer surfaces of the connecting columns, and sealing plugs are embedded in the oil injection holes; reinforcing protruding blocks are annularly installed on the surfaces of the front side and the rear side of the grinding wheel body. According to the novel high-strength grinding wheel, the reinforcing ribs are arranged, the interior of the connecting column is of a hollow structure, on one hand, the overall weight of the grinding wheel is reduced, the grinding wheel is lighter, on the other hand, the tensile capacity of the connecting column is