Application of electro hydraulic drive to mine hoisting
Abstract
The idea of applying an electro‑hydraulic drive to mine hoisting occurred to the author of this article in 1944. 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 Associate Professor A. E. Maksimov as principal investigator. After obtaining theoretical and experimental results, the first electro‑hydraulic hoisting machine in mining practice was built in 1947 through the 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 electro‑hydraulic drive is as follows. Between a continuously rotating electric motor and the working machine – in this case, the hoisting machine – a hydraulic link is inserted: a centrifugal fluid coupling. Thanks to this, depending on the degree to which the fluid coupling is filled with working fluid, it becomes possible to obtain various hoisting speeds, from zero to maximum.
None
References
- Maksimov A. E.. Hydraulic drive of mine hoisting machines,Gornyi Zhurnal "Mining magazine", 1948, iss No. 11, p. 37-40. (in Russian)
- Description of the design and operating manual of a hydraulic gear reducer, published by the Izd. Mechanicheskogo Zavoda al Plant, 1948. (in Russian)