Savenko E. Substantiation of transmission force parameters under unsteady operations of mine winders.

The dynamic state of the interacting elements of a winder being a system of discrete and distributed mass is the object of investigation. Its aim is to provide a scientific ground of the design force factors in the winders transmission under unsteady states. The methods are as follows: the theoretical investigation is based on the main principles of analytical mechanics and mathematical physics when the transmission dynamic state equations and differential equation theory are derived. The novelty lies in the fact that the rope distributed mass and non-linearity of the gear backlash are taken into account. The obtained results could be called significant due to development of the knowledge on the winder transmission dynamics and creation of the mathematical model of transmission of the winder being one of the main units of the general electrical and mechanical winder system with the application of the system approach principles. All mentioned above makes it possible not only to imitate the quality ofthe dynamic process but also to obtain the reliable force factors quantities. The practical significance of the investigation is in development and implementation of the methodical recommendations and applied programming modules to calculate the moment of force in the shaft, definition of the forces of interaction of dentate meshes under the unsteady modes of operation made under the calculation of the transmission elements as to the strength and durability and when the winder remaining life was prognosticated. The results were used by the OSC M. M. Fyodorov Research Institute of Mining Mechanics, OSC Donetskgormash, CSC Novokramatorsky Machine-Building Plant and at the training process at Donbass State Academy of Construction and Architecture. The sphere of application is ore and mining.