Influence of test modes and accuracy of manufacturing a roller cone bit on loading of its elements

Vladimir Alekseevich Pyalchenkov; Dmitry Vladimirovich Pyalchenkov; Lybov Ivanovna Nikitina

Vladimir Alekseevich Pyalchenkov Tyumen Industrial University, Russia https://orcid.org/0000-0002-3867-4700
Dmitry Vladimirovich Pyalchenkov Tyumen Industrial University, Russia https://orcid.org/0000-0001-5722-7677
Lybov Ivanovna Nikitina Tyumen Industrial University, Russia

Keywords: Accuracy of manufacturing, bit, cone cutting structure, drilling, load, roller cone.

Abstract

A technique has been developed for selecting test modes for direct measurement of forces acting on the cutting structure elements of a cone bit during its interaction with the face of hole at a special stand. The optimal intervals of axial loads on the bit and bit rotation frequencies are determined, which allow to obtain an objective picture of the distribution of forces in the equipment of the bit. The results of experimental studies of the load of cutting structures of the cone bits depending on the different heights of cones are presented. It has been established that with an unfavorable combination of the relative position of the cone, even within the tolerance, the axial load acting on one cone can almost double. The research results allow a more reasonable approach to the selection of indicators for the accuracy of production of bits.

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Author Biographies

Vladimir Alekseevich Pyalchenkov, Tyumen Industrial University, Russia

Tyumen Industrial University, Russia

Dmitry Vladimirovich Pyalchenkov, Tyumen Industrial University, Russia

Tyumen Industrial University, Russia

Lybov Ivanovna Nikitina, Tyumen Industrial University, Russia

Tyumen Industrial University, Russia

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