Simulation Research of Hydraulic Stepper Drive Technology Based on High Speed On/Off Valves and Miniature Plunger Cylinders.
Simulation Research of Hydraulic Stepper Drive Technology Based on High Speed On/Off Valves and Miniature Plunger Cylinders.
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基于高速开关阀和微型柱塞缸的液压步进驱动技术仿真研究
DOI：
10.3390/mi12040438
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发表时间：
2021-04-15
期刊：
影响因子：
3.4
通讯作者：
Su Q
中科院分区：
文献类型：
--
作者：
Qiu H;Su Q
在液压领域中，能够实现精确运动的步进驱动技术一直是工业界迫切需要的。本文提出了一种基于五个高速开关阀和两个微型柱塞缸的液压步进驱动器。步进驱动器通过微型柱塞缸将连续流动的介质离散为固定的小步长，通过高速开关阀的逻辑动作实现驱动器的状态控制。本文对现有的步进驱动器进行了改进，建立了数学模型，分析了驱动器的误差，计算了执行机构的位置。此外，通过仿真研究，对步进驱动器的单步步进特性、压力特性等性能参数进行了研究。结果表明，与现有步进驱动技术相比，该步进驱动器能有效消除“后步”现象，大大提高步进驱动器的步进精度，具有更加优异的性能。
The technology for stepper drive that can achieve accurate motion in the hydraulic field has always been urgently needed in the industry. This paper proposes a hydraulic stepper drive based on five high speed on/off valves and two miniature plunger cylinders. The stepper drive discretizes the continuous flow medium into fixed small steps through the miniature plunger cylinder and realizes the state control of the drive through the logic action of the high speed on/off valve. This paper improves the current stepper drive and establishes a mathematical model to analyze the error of the drive and calculate the position of the actuator. In addition, through simulation research, the performance parameters such as the single-step step characteristic and pressure characteristic of the stepper drive are studied. The results show that, compared with the technology of current stepper drive, this stepper drive can effectively remove the “post step” phenomenon, greatly improve the stepper accuracy of the stepper drive, and have a more excellent performance.
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