▎ 摘　　要

NOVELTY - The utility model claims crankshaft-stage gas compressor, comprising a transmission input shaft, a transmission disc, a connecting rod and a transmission output shaft, the transmission input shaft and the transmission output shaft is installed between the transmission disc and a connecting rod, the transmission disc inner wall is compounded with a radiating component, the radiating component comprises a graphene patch, a copper-aluminium alloy backboard and a copper-aluminium alloy fin, the copper-aluminium alloy backboard is compounded on the surface of the graphene patch. the inner wall of the transmission disc is compounded with a radiating component, the radiating component comprises a graphene patch, a copper-aluminium alloy back plate and a copper-aluminium alloy fin, crankshaft working, part of heat generated by the surface is transferred to the surface of the copper-aluminium alloy back plate through the graphene patch, the copper-aluminium alloy back plate and the copper-aluminium alloy fin and the first radiating groove and the second radiating groove are set on the surface, which can effectively increase contact the area of the air, It has good auxiliary radiating performance, reduces the accumulation of heat, reduces the corrosion of heat to the crankshaft and prolongs the service life.