Compressing mechanism of compressor and compressor provided with same

The utility model discloses a compressing mechanism of a compressor and the compressor provided with the same. The compressing mechanism comprises a cylinder assembly and a bearing arranged at one axial end of the cylinder assembly, wherein the cylinder assembly comprises a cylinder in which a compressing chamber is arranged; the bearing comprises a shaft neck part, a flange part and multiple first reinforcing ribs; the flange part is arranged between the shaft neck part and the cylinder assembly; in the axial direction of the cylinder assembly, the flange part comprises a support part which is axially opposite to the cylinder assembly; each first reinforcing rib extends along inner and outer directions and is arranged on one side, far away from the cylinder assembly, of the support part; and the multiple first reinforcing ribs are spaced at the periphery of the support part. According to the compressing mechanism, the rigidity of the bearing can be effectively improved by arranging the multiple first reinforcing ribs on the support part, so that the stress of the bearing is uniformly distributed, the utilization rate of the bearing material is improved and the production cost of the bearing is reduced.