The invention discloses a power transmission device of a seedling planting machine. Coaxial through holes are formed in an outer side casing and an inner side casing arranged at one end of a chain box; a pin shaft is arranged in a position of the chain box near the through holes; the two ends of the pin shaft are supported on the outer side casing and the inner side casing; a power output shaft is supported on an outer side casing and an inner side casing arranged at the other end of the chain case through a bearing; a transition shaft is supported on an outer side casing and an inner side casing arranged in the middle of the chain box through a bearing; chain wheels comprise a transition large chain wheel, a transition small chain wheel and a power output chain wheel; the diameter of the transition large chain wheel and the diameter of the power output chain wheel are greater than the diameter of the transition small chain wheel; the transition large chain wheel is arranged and fixed on the end, near the outer side casing, of the transition shaft; the transition small chain wheel is arranged and fixed on the end, near the inner side casing, of the transition shaft; and the power output chain wheel is arranged and fixed on the power output shaft. The power transmission device has the advantages that the multi-stage speed change can be carried out, and the length of the power output shaft is reduced, so that the structure of the seedling planting machine is more compact.


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    Title :

    Power transmission device of seedling planting machine


    Contributors:
    CHEN YONG (author)

    Publication date :

    2015-08-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



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