Diesel engine camshaft with high reliability

The utility model discloses a diesel engine cam shaft with high reliability, which comprises a mandrel, a cam shaft and a cam shaft, the air inlet cam is arranged on the mandrel; the shaft neck is arranged on the right side of the air inlet cam; the limiting ring is arranged on the outer side of the shaft neck; the wear-resistant layer is arranged on the surface of the limiting ring; the limiting prisms are arranged on the periphery of the outer side of the limiting ring at uniform intervals; the arc-shaped grooves are uniformly formed in the outer side of the periphery of the limiting prism at intervals; the sealing rubber strip is clamped in the arc-shaped groove; the exhaust cam is arranged on the left side of the air inlet cam. The shaft neck is clamped in the key groove in the gear through the limiting ring, and convenience and practicability are achieved; by arranging the limiting prism and the sealing rubber strip, the clamping area and the friction force with a key groove in the gear are increased, so