Evaluation of losses in transmission of machinery for development of mineral deposits in conditions of variable load

[摘要] The influence of individual elements of machines transmissions on the operation of the whole system is shown. The approach of determining the resource of operation of systems elements based on the energy theory is presented. The formulas for determining the total energy resource of the reducer are given. The influence of individual elements of the system on each other is indicated. The principle of researching the system by the method of equivalent circuits is substantiated. The weakest places of transmission (gears, bearing supports and shafts) are determined. A mathematical model of a mechanical transmission was developed. To test the adequacy of the mathematical model, the stand for obtaining experimental data was designed. The description of the stand and the principle of its operation are given. Experimental data are presented. A comparative analysis of modeling and experimental data is carried out and the adequacy of the developed mathematical model is proved. The principle of determining the resource of the system as a whole for the element with the minimal resource of work is suggested.

[发布机构] Saint-Petersburg Mining University, 2, 21st line, Saint-Petersburg; 199106, Russia^1

[效力级别] 电工学

[关键词] Adequacy of the mathematical models;Bearing support;Comparative analysis;Mechanical transmission;Variable loads