A REVOLUTION DEVICE OF LEADER FOR EXCAVATING MACHINE

摘要

The present invention relates to a leader of a ground excavation device equipped with a rotating device for rotating the HYDRAULIC HAMMER attached to the ground excavation device to the striking operation position or the non-strike operation position, the crawler In front of the traveling device, the lower end of the leader, in which a plurality of leader rods are assembled in multiple stages, is attached to a horizontal support that can be adjusted in length by a hydraulic cylinder, and the backstay is fitted to the upper end of the leader so that the leader can rotate. In the ground excavation device is installed, the one side of the leader is installed on the vertical guide rod installed in the vertical lifting device, the upper periphery of the fixed rod of the lower end side of the leader fixed to the horizontal support, Bearing mechanism for rotatably connecting the lower periphery of the rotating rod where the leader rods are assembled in multiple stages A jaw, an inner tooth ring which is supported by a circular mounting plate of the fixed rod, and is installed in the upper diameter of the upper support disc of the fixed rod on which the hydraulic motor in which the small output gear protrudes upwards and the inner ring of the bearing structure is welded upward. Gears, the inner toothed ring gear is formed in the planetary gear and the sun gear and a reduction gear consisting of a coupling gear which is integrally formed with the sun gear and meshes with the small output gear and protrudes on the upper surface of the reduction gear. The fitting body 51 for accommodating the engaging body 84 is formed, and the leader rod is multi-assembled above the rotating rod and the rotating rod by constituting the lower support disk of the rotating rod on which the outer ring of the bearing structure is welded. It is characterized by the ability to rotate.