Abstract
The increase of a traction rolling stock nodes resource is always a priority for domestic locomotive construction. In recent years, there is a very actual problem of the quality of the engagement of a traction gear transmission for electric freight DC locomotives 2ES6. Wear as extreme as uneven in height or thickness, formed as a result, eventually distorts the involute profile, increases the transmission side gap which leads to increased dynamic loads and results cracks formation, chips, and fractures on the teeth. To solve the problem, the impact of the geometrical parameters of gearwheels on specific pressure in the engagement is researched. Calculation formulas and recommendations on the value of the coefficient of specific pressure within the teeth contact are suggested. The initial traction gear transmission of the electric freight locomotive 2ES6 is imitated and verified with the results of experimental researches. The use of non-standard initial circuit to increase the resource of the gear transmission of the electric freight locomotive 2ES6 is suggested. Comparative analyses of the initial and optimized transmissions is conducted within the suggested geometric-kinematical method of the evaluation of the engagement quality which confirms the complexed optimization.
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