双定子多输出泵控差动缸回路的研究

发布时间：2018-04-10 21:28

本文选题：双定子 + 多输出泵　；参考：《液压与气动》2017年11期

【摘要】：针对现有泵控差动缸液压技术的不足,基于双定子多输出泵提出了新型双定子多输出泵控差动缸液压系统。在多输出定量泵和多输出变量泵的基础上,分别设计出两种新型泵控差动缸液压回路。两种新型液压回路是通过多输出泵中内、外泵排量比来补偿差动缸两腔有效面积比,进而通过单向阀实现精确补偿,其很大程度上提高了系统能量效率,其中多输出定量泵可通过切换多输出泵中内、外泵的连接方式,来补偿多种差动缸的不对称流量,提高了多输出泵的适用性。同时对该新型液压回路搭建了试验测试平台,试验结果表明:多输出泵控差动缸液压回路可解决差动缸流量不对称问题,实现差动缸两方向运动速度相同的目的。试验结果和理论分析基本一致,证明了理论分析的正确性。
[Abstract]:A new type of differential cylinder hydraulic system based on double stator multi-output pump is proposed in view of the deficiency of the existing pump control differential cylinder hydraulic technology.On the basis of multi-output quantitative pump and multi-output variable pump, two new pump controlled differential cylinder hydraulic circuits are designed.The two new hydraulic circuits compensate the effective area ratio of the differential cylinder by the internal and external pump displacement ratio in the multi-output pump, and then realize the accurate compensation through the one-way valve, which improves the energy efficiency of the system to a great extent.The multi-output quantitative pump can compensate the asymmetrical flow rate of the differential cylinder by switching the connection of the internal and external pumps in the multi-output pump and improve the applicability of the multi-output pump.At the same time, a test platform is set up for the new hydraulic circuit. The test results show that the multi-output pump controlled differential cylinder hydraulic circuit can solve the problem of differential cylinder flow asymmetry and achieve the same speed of differential cylinder in both directions.The experimental results are basically consistent with the theoretical analysis, which proves the correctness of the theoretical analysis.
【作者单位】：燕山大学机械工程学院;
【基金】：国家自然科学基金(50975246)
【分类号】：TH137.51

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