Rotary guide motor

• Main Authors: WANG BINGCHU, LIU DONGSHENG, WANG DONGWEI, HU MINGCHAO, LIU LIJIANG, YIN YONGQING, LU LIZHONG, ZHANG JIANGONG
• Format: Patent
• Language: Chinese; English
• Published: 10.11.2023
• 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 invention discloses a rotary guide motor, and belongs to the technical field of petroleum drilling tools, the rotary guide motor comprises an integrated stator and a transmission shaft arranged in the integrated stator, the outer wall of the transmission shaft is sleeved with a bearing structure, and the bearing structure comprises a first bearing assembly, a second bearing assembly and a third bearing assembly which are sequentially arranged in the axial direction of the transmission shaft; wherein a first outer thrust bearing of the first bearing assembly and a second inner thrust bearing of the third bearing assembly can rotate along with the transmission shaft, and the second outer thrust bearing, the second bearing assembly and the first inner thrust bearing are relatively static with the transmission shaft, so that the bearing structural form is more beneficial to transmission of bit pressure, the transmission efficiency of the bit pressure is higher, and the transmission efficiency of the bit press