Starter of diesel engine

The utility model discloses a starter of diesel engine, which comprises a housing, a starting shaft with unidirectional over running clutch which is arranged on the upper part of the inner cavity of the housing and a driving gear which is arranged on the starting shaft. The lower part of the inner cavity of the housing is provided with a through-shaft, one end of the through-shaft extend out of the housing and connects with a jaw type clutch driving disc which is arranged in the wheel hole of the starting wheel of the diesel engine; the jaw type clutch driven disc is fixedly connects with the starting wheel, a shaft sleeve is fixedly arranged on the through-shaft positioned in the inner cavity of the housing, the periphery surface of one end of the shaft sleeve meshes with the driving gear which is arranged on the starting shaft by the unidirectional over running clutch and the driving gear, a torque spring is arranged on the shaft sleeve. The technical proposal is adopted, so the diesel engine can be conveniently and simply started. Compared with the diesel engine with larger power and staring the diesel engine at lower environment temperature, the advantages of the utility model are revealed.