Mechanical device suitable for nearly wireless short pass of drill bit transmission in pit

• Main Authors: DI QINGYUN, SUN YUNTAO, CHEN WENXUAN, YANG YONGYOU, ZHANG WENXIU, ZHENG JIAN
• Format: Patent
• Language: Chinese; English
• Published: 10.05.2017
• 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 belongs to the technical field of the nearly wireless short pass device of drill bit, concretely relates to mechanical device suitable for nearly wireless short pass of drill bit transmission in pit. Mechanical device includes drill bit connection casing and the screw rod connection casing of making by metal material, still includes the insulating nipple joint of being made by insulating material, the drill bit connect the casing with the centre that the casing is connected to the screw rod concatenates insulating nipple joint, realizes the drill bit connect the casing with the electric isolation of casing is connected to the screw rod, the drill bit connect the casing with the screw rod is connected the casing and is constituted the anodal and electromagnetic emission negative pole of electromagnetic emission respectively, mechanical device is still including the data emission unit who is used for gathering the measuring unit of nearly drill bit measurement parameter and is used for realizi