Lowering energy consumption of unbalanced elevator systems

Authors: Kaimov S.A.
Published in issue: #4(45)/2020
DOI: 10.18698/2541-8009-2020-4-603
Category: Mechanical Engineering and Machine Science | Chapter: Machine Science, Drive Systems, and Machine Components
Keywords: lifting-and-transport machines, efficiency of lifting machines, the ratio of the cabin weight and the load, the weight of the balancing counterweight, the engine power of the elevator system, the power calculation of the mine elevator, the balancing of the elevator system, the scheme of the mine elevator
Published: 08.05.2020

Topical issues of reducing the efficiency of lifting machines (LM) are considered. The LM economy criterion was estimated using complex specific indicators, which make it possible to determine the relationship between the dynamic characteristics of machines and energy costs. The calculation of the complex specific indicator is shown on the basis of a simple unbalanced elevator system. The dependence of the specific power expended when lifting the load on the ratio of the cabin weight to the cargo weight is determined. Also considered are mathematical models of counterbalanced lifting-and-transport machines (LTM), the analysis of which shows the possibility of reducing their energy consumption. Recommendations are given to ensure minimization of the total energy consumption on the descent and ascent of the LM.

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