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The compound electromechanical-hydraulic transmission system with reflux power of roadheader cutting unit

机译：掘进机截割单元带回流功率的复合机电液传动系统

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摘要

Considering the higher requirements for mechanical system reliability and environmental adaptability of unmanned mining machine, a new type of compound electromechanical-hydraulic transmission system with reflux power that can continuously variable transmit according to cutting load is proposed in order to break the present transmission style. This paper explains the principle of the variable speed in the reflux electromechanical-hydraulic transmission system, deduces formulas of the speed ratio, efficiency and torque characteristic, and analyzes the performance changes of the new transmission system under different working conditions. And the result shows that the reflux power transmission system, which use hydraulic torque converter as the feature-driven element, has the characteristics of adaptive continuously variable transmission, hard rock breaking and cushioning. Additionally the new system enhances the transmission efficiency significantly and meet the higher requirements for reliability and adaptability in unmanned mining.
机译：考虑到对无人驾驶采矿机机械系统可靠性和环境适应性的更高要求，提出了一种新型的具有回流功率的复合机电液传动系统，可以根据切削负荷无级变速，以打破目前的传动方式。本文阐述了回流机电液传动系统的变速原理，推导了速比，效率和转矩特性的公式，并分析了新型变速系统在不同工况下的性能变化。结果表明，以液力变矩器为特征驱动元件的回流动力传递系统具有自适应无级变速，硬岩破碎和缓冲的特点。此外，新系统显着提高了传输效率，并满足了无人驾驶采矿对可靠性和适应性的更高要求。

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