Application of hydroelectric drive to mine hoisting

Abstract

The idea of ​​using a hydroelectric drive for a mine hoist occurred to the author of this article in 1944. In order to implement it, at the author's suggestion and under his scientific supervision, research work was organized in 1945 at the Leningrad Mining Institute with the participation of Assoc. Prof. A. E. Maksimov as the person in charge. After receiving theoretical and experimental results of the study, the first hydroelectric hoisting machine in mining practice was implemented in 1947 by joint efforts of researchers from the Department of Mining Electrical Engineering of the Leningrad Mining Institute and a group of engineers. The operating principle of the hydroelectric drive is as follows. Between the constantly rotating electric motor and the machine-tool, in this case - the hoisting machine, a hydraulic link is inserted - a centrifugal fluid coupling, due to which, depending on the degree of filling of the fluid coupling with working fluid, it is possible to obtain various values ​​of the lifting speed - from zero to maximum.