Excavator with rotating links for improved wear resistance

摘要

The present invention relates to an excavator equipped with a rotating link with improved wear resistance, the configuration of which is an excavator including a traveling body, a rotating body, an arm, a bucket, and a power generating unit, wherein the arm is interposed between the arm and the bucket to be attached to the arm. A center joint in which a rotation link is provided to rotate with the bucket in a left and right direction, and a plurality of hydraulic inlets are formed at the front end of the rotating link and a plurality of hydraulic transmission ports communicating with the hydraulic inlets are formed on the outer circumferential surface. Bucket rotation operation unit consisting of; One end is fixedly coupled to the lower one side of the rotary link, and the other end is coupled with a fixing pin formed on the top of the bucket, by a combination that operates synchronously with the vertical operation of the hydraulic cylinder provided on one side of the rotary link. When rotated to a fixed position, the fixing pin portion of the bucket is bit and fixed, and when rotated to the fixed position, an attachment portion for releasing the fixing pin portion is released; And an upper protruding piece and a lower protruding piece on one side of the outer circumferential surface of the rotation link at regular intervals in a vertical direction on the same line, and an elevating cylinder including a piston rod is installed upright at a central portion of the upper protruding piece, and the lower part And a rotation angle limiting portion having a structure in which a fixing hole provided with a space through which an end portion of the piston rod can be inserted when the piston rod is lowered is formed in the central portion of the protruding piece.