THEORETICAL EVALUATION OF SERVICE LIFE OF ROLLER CUTTER DRILL BIT BEARING ASSEMBLY, BASED ON FIELD TESTS
Rodion M. Bogomolov – PhD in Engineering, professor, director for advanced research, OJSC “Volgaburmash”, bogomolov@vbm.ru bogomolov@vbm.ru;
Valerij.V. Remnev – PhD in Engineering, OJSC “Volgaburmash”, v_remnev@rambler.ru v_remnev@rambler.ru;
Nikolay V. Nosov — PhD in Engineering, professor of SamGTU, press@samgtu.ru press@samgtu.ru.;
Nikolay I. Dedov – PhD in Engineering, professor of SamGTU, press@samgtu.ru press@samgtu.ru.
Key words: total service life of bearing assembly, empirical models, service life evaluation algorithm, probability of trouble-free operation.
Absence of domestic methods of evaluation of total service life of drill bit bearing assembly TBR has long been a serious obstacle to foreign sales of drill bits supplied by OJSC “Volgaburmash”. The author proposes a mathematical model to evaluate TBR for custom conditions and drilling modes on the basis actual conditions, drilling modes and bit wear data.
THEORETICAL EVALUATION OF SERVICE LIFE OF ROLLER CUTTER DRILL BIT BEARING ASSEMBLY, BASED ON FIELD TESTS
Rodion M. Bogomolov – PhD in Engineering, professor, director for advanced research, OJSC “Volgaburmash”, bogomolov@vbm.ru
Valerij.V. Remnev – PhD in Engineering, OJSC “Volgaburmash”, v_remnev@rambler.ru
Nikolay V. Nosov — PhD in Engineering, professor of SamGTU, press@samgtu.ru
Nikolay I. Dedov – PhD in Engineering, professor of SamGTU, press@samgtu.ru
Key words: total service life of bearing assembly, empirical models, service life evaluation algorithm, probability of trouble-free operation.
Absence of domestic methods of evaluation of total service life of drill bit bearing assembly TBR has long been a serious obstacle to foreign sales of drill bits supplied by OJSC “Volgaburmash”. The author proposes a mathematical model to evaluate TBR for custom conditions and drilling modes on the basis actual conditions, drilling modes and bit wear data.
