| 摘要 |
PURPOSE: A front head joining device of a crusher for an excavator is provided to secure performance stability by enduring vertical tension caused by excavation by inserting a nut member into a cutout groove instead of a front head. CONSTITUTION: A front head joining device of a crusher for an excavator comprises a plurality of first though holes(131), a plurality of second through holes(141), a cutout groove(142), a nut member(150), and a bolt(160). The first though holes pass through a cylinder assembly(130) vertically. The second though holes pass through a front head vertically. The exterior surface of a front head is partially cut for forming the cutout groove. The nut member is engaged with the cutout groove. The bolt is inserted in the screw hole(151) of the first and second through holes and the nut member to fasten a cylinder assembly and the front head.
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