The present invention relates to an auxiliary boom connecting structure of a crane and, more specifically, to an auxiliary boom connecting structure which connects an auxiliary boom for extending the length of a crane to a main boom of the crane in a separable structure and varies an angle of the auxiliary boom and fixes the auxiliary boom, thereby reinforcing bending weight of the auxiliary boom according to a heavy object. According to the present invention, the auxiliary boom is towed by a wire hung on a wire fixing hole and connected to the main boom side by side while rotating around a pivot shaft with the auxiliary boom coupled to an engaging shaft of the main boom through a shaft engaging hole, so the auxiliary boom and the main boom can be easily connected through electric power. Especially, the auxiliary boom is fixed to the main boom at a predetermined angle through an angle control connector, thereby reinforcing bending weight of a connected portion through an angle adjustment of the auxiliary boom.

    본 발명은 크레인의 보조붐 연결구조에 관한 것으로, 더욱 상세하게는 크레인의 길이를 연장시키기 위한 보조붐을 크레인의 메인붐에 분리가능한 상태로 연결하면서 보조붐의 각도를 가변시켜 고정함으로써 중량체에 따라 보조붐의 휨하중을 보강할 수 있는 크레인의 보조붐 연결구조에 관한 것이다. 본 발명에 의하면, 보조붐이 축걸림구를 통해 메인붐의 걸림축에 결합된 상태에서 와이어고정구에 걸린 와이어의 견인에 의해 피벗회전하면서 메인붐과 나란하게 연결되므로 보조붐과 메인붐을 동력을 통해 용이하게 연결할 수 있으며, 특히 보조붐이 각도조절커넥터에 의해 메인붐에 설정된 각도로 고정됨에 따라 보조붐의 각도조정을 통해 연결부위의 휨하중을 보강할 수 있다.


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    Title :

    BOOM CONNECTING STRUCTURE OF CRANE


    Additional title:

    크레인의 보조붐 연결구조


    Contributors:

    Publication date :

    2015-10-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B66C Krane , CRANES



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