The invention provides an automatic lubricating structure of grab buckets. The automatic lubricating structure comprises two limiting blocks arranged on the back face of the grab buckets in a paired mode, and further comprises springs, pistons, one-way valves, an oil tank, oil inlet hoses and oil outlet hoses. A cavity is formed in each limiting block, the pistons are put into the cavities, and the springs are arranged between the pistons and the bottom walls of the cavities of the limiting blocks. At least one section of a piston rod of each piston is exposed out of the corresponding cavity. The oil tank and the cavities of the limiting blocks are connected through the oil inlet hoses, and the one way valves are arranged at the ends, close to the oil tank, of the oil inlet hoses. Oil outlet channels are formed in the bottom walls of the limiting blocks and communicated with oil outlet connectors on the outer sides of the bottom walls of the limiting blocks, and the oil outlet connectors of the limiting blocks are connected with oil nozzles of all hinge shafts through the oil outlet hoses. By means of the automatic lubricating structure, it is ensured that the hinge shafts of the grab buckets can be lubricated constantly, the influence of the severe environment is avoided, and oil holes of the hinge shafts cannot be blocked by dust particles.


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    Title :

    Automatic lubricating structure of grab buckets


    Contributors:

    Publication date :

    2015-09-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    F16N LUBRICATING , Schmierung / B66C Krane , CRANES



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