Locking mechanism's lower plate and bunched type down --hole hammer

• Main Authors: ZHU CHENGLI, NIU HUIFENG, WANG LIANGLIANG, JI TIANXU, QIN HUAFENG, WANG QINGCHUN, CHEN XI
• Format: Patent
• Language: Chinese; English
• Published: 15.08.2017
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS

The utility model discloses a locking mechanism's lower plate is equipped with with the down -the -hole free lower clutch complex mounting hole of hammer and is used for holding the holding hole that free tup was hammered into shape to the down -the -hole on it, mounting hole and holding hole intercommunication, and the mounting hole is close to the upper surface of lower plate, and the holding hole is close to the lower surface of lower plate, open competent slag runner on the lower surface of lower plate, the one end and the holding hole intercommunication of horizontal slag runner, the other end extends to the outer peripheral face of lower plate. This this lower plate not only is provided with the mounting hole that is used for assembling the free lower clutch of down -the -hole hammer, still is equipped with the holding hole that is used for holding the free tup of down -the -hole hammer, and both set gradually along end plate thickness orientation, and obviously bottom plate thickness is big, and intens