旋挖钻机数字液压回转系统设计与试验《机械设计与研究》
本帖最后由 亿美博 于 2024-8-17 20:37 编辑摘要：
为了降低旋挖钻机回转启动和停止时刻的冲击压力，提高回转运动过程的平稳性和回转定位精度，提出将数字液压技术应用于旋挖钻机回转系统。基于数字液压技术，设计了一种旋挖钻机数字液压回转系统和数字液压马达，介绍了数字液压回转系统工作原理，建立了数字液压回转系统的数学模型，在某型号旋挖钻机上安装了数字液压回转系统并与原有液压回转系统进行对比试验。试验结果表明：与原有液压回转系统相比，数字液压回转系统不仅大幅提高了回转速度的平稳性和回转定位精度，减少了回转动作所需时间，还能将回转启动时的冲击压力降低20.6%，将回转制动时的冲击压力降低32%，将回转运动过程中驱动液压马达的压力降低42.8%，这极大的提升了旋挖钻机的回转性能和工作效率，减少了整机的能耗。同时，数字液压回转系统在旋挖钻机上凸显的巨大优势为推广数字液压技术在工程机械中的应用提供了实际参考价值。
Abstract：
In order to reduce the impact pressure at the start and stop of rotary drilling rig, improve the stability of rotary motion process and the accuracy of rotary positioning, the digital hydraulic technology is applied to the rotary system of rotary drilling rig. Based on digital hydraulic technology, a digital hydraulic slewing system and digital hydraulic motor of rotary drilling rig are designed. The working principle of the digital hydraulic slewing system is introduced. The mathematical model of the digital hydraulic slewing system is established. A digital hydraulic slewing system is installed on a rotary drilling rig and compared with the original hydraulic slewing system. The experiment results show that compared with the original hydraulic slewing system, the digital hydraulic slewing system not only greatly improves the stability of slewing speed and slewing positioning accuracy, reduces the time required for slewing action, but also reduces the impact pressure at slewing start by 20.6%, the impact pressure at slewing brake by 32%, and the pressure driving the hydraulic motor during slewing motion by 42.8%, which greatly improves the slewing performance and working efficiency of the rotary drilling rig, and reduces the energy consumption of the whole machine. At the same time, the great advantages of digital hydraulic slewing system in rotary drilling rig provide practical reference value for the promotion of the application of digital hydraulic technology in construction machinery.
非常好的成功应用案例，对数字液压在工程机械领域的应用提供了很好的经验和样板作用。
工程机械的智能化一直是国内外研究的重点，也是国外龙头企业的宣传要点，中国在这方面的发言权一直很弱，希望继续努力，最终能够在工程机械之王挖机上实现突破。
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