在地面水缺乏的地区,需打井以开发地下水灌溉农田,打井常用“大锅锥”。大锅锥的钻杆是大锅锥打井设备的主要零件,受力较大,除传递扭矩带动维头转动挖切泥土砂石外,锥头还要沿钻杆提升和下降,以便将挖出及存于锅锥腔内的泥土砂石提升到井口排除,并将排空泥土砂石的空锅锥沿钻杆送下井去,以便再行钻挖。 In areas where ground water is scarce, wells need to be drilled to develop groundwater to irrigate farmland and wells are often used as “cauldron cones.” Cauldron cone drill pipe cauldron cone drilling equipment is the main part of the larger force, in addition to the transmission of torque driven by the first cut dredge sand and gravel, but also along the drill pipe cone to rise and fall, so that the digging The soil gravel out and stored in the conical cavity of the pot is lifted to the wellhead for removal and the empty pan cone emptied of sand and gravel is sent down the drill pipe for further drilling.