OIL PRESSURE LOW AUGER OF HALF TURE FOR GROUND EXCAVATOR

摘要

The present invention relates to a semi-rotary hydraulic lower auger for a ground excavator, which is raised and lowered along a guide rod of a leader of a crawler crane, comprising: a lower auger body slidably mounted on the guide bar and having an inner space formed along a guide rod; Two auger hydraulic cylinders, one side of which is hingedly connected to one side of the inner side of the lower auger body, and which are connected to the hydraulic device of the crawler crane by hydraulic hoses, and auger hydraulic cylinders which are inserted into each of the auger hydraulic cylinders, A lower auger hydraulic device composed of an auger hydraulic cylinder rod to be inserted; A rack hinged to the other side of the lower auger hydraulic device and having a rack gear on one side thereof; A pinion gear which is gear-engaged with a rack gear of the rack is constituted by a pinion formed on the outer peripheral surface and composed of a cylindrical body; The lower auger hydraulic device is connected to the hydraulic device of the crawler crane by a hydraulic hose so that the pinion reciprocally rotates due to the hydraulic action of the crawler crane to operate the oil pressure of the hydraulic device of the crawler crane, , A gear box, a generator, and the like, the overall structure is simple, the weight is lightweight, and the energy efficiency is good.