Abstract
When crushing high-strength materials, a low efficient operation of jaw crushers is attributed to failure to factor into transient processes to an adequate extent.
Research of transient processes of industrial ma-chines is of a great practical value.
The transient processes in the jaw crusher depend on the speed of an actuating mechanism and its operation period and a turning angle of a supplementary shaft.
This article presents how time-varying loads influ-ence the electric drive system of the jaw crusher.
By solving a system of differential equations of mo-tion, we get design equations allowing a research of time-varying transient processes in the electric drive system.
The research showed that the behavior of loads slightly influenced the dynamics of transient processes. In addition, calculations showed that the dynamics of transient processes was considerably influenced by the speed of loading.
To decrease the speed of loading, it was suggested to change the parameters of a crushing chamber of the crushing machine. A new design of the crushing machine was patented in the republic of Kazakhstan and Ukraine.
Keywords
Speed of loading, dynamics, transient process, velocity step, motor torque, crushing chamber.
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