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本文所研究的电液伺服系统的特点是在较大转动惯量负载的条件下,实现宽调速(最大速比为几万～上百万)、超低速(0.04°/s～0.004°/s)、高频率响应(相位滞后-90°时为15Hz)。为实现这一目标,本系统采取了一系列措施。如在液压马达的结构设计特别是密封结构形式和材料的选择、电液伺服阀的配油形式、液压马达固有频率的选择及其与电液伺服阀固有频率的匹配关系以及反馈校正形式和参数的确定等,以保证满足系统的高性能要求。
The characteristics of the electro-hydraulic servo system studied in this paper are the wide speed regulation (the maximum speed ratio is tens of thousands to millions), the ultra-low speed (0.04 ° / s ~ 0.004 ° / s ), High frequency response (phase lag -90 ° when 15Hz). To achieve this goal, the system has taken a series of measures. Such as hydraulic motor structure design, especially the choice of sealing structure and material, the electro-hydraulic servo valve with the oil form, the choice of the natural frequency of the hydraulic motor and the electro-hydraulic servo valve natural frequency matching and the feedback correction form and parameters To ensure that the system to meet the high performance requirements.