FIELD: mining.
SUBSTANCE: drill string bottom part assembly comprises downhole motor fitted at said drill string and having rotor and stator. Note here that first hole is made in said rotor. Spindle arranged under downhole motor with second hole made therein. Third hole is made in the shaft with first and second ends. First end is coupled with rotor via first universal adapter. Second end is coupled with spindle via second universal adapter. Inner rod is fitted in the shaft third hole. Note here that inner rod has inner passage and third and fourth ends. Third end seals communication of inner passage with the rotor first hole while fourth end seals communication of inner passage with the spindle second hole.
EFFECT: transducer signal transmission, power supply inside assembly spinning elements.
21 cl, 8 dwg
