| 微磨料水射流切割头装置设计与研究 |
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| 引用本文： | 刘克福,雷玉勇,蒋代君.微磨料水射流切割头装置设计与研究[J].机械设计与制造,2011(9). |
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| 作者姓名： | 刘克福 雷玉勇 蒋代君 |
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| 作者单位： | 西华大学机械工程与自动化学院,成都,610039 |
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| 基金项目： | 国家自然科学基金项目(50844033); 四川省教育厅项目(09ZB085/09ZZ030)资助 |
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| 摘 要： | 传统磨料水射流切割头的磨料靠负压吸入,可靠性差、吸入不均匀、流量不能精确控制。采用螺杆泵输送原理,设计了一种新型微磨料水射流切割头装置及控制系统。该装置采用螺杆泵主动送料,螺杆由步进电机驱动,单片机发出的控制脉冲控制步进电机的转速,步进电机的转速与磨料流量一一对应,从而将磨料定量、连续地送到切割头混合腔,实现磨料流量的精确控制。在混合腔的排出通道上设置单向阀门,解决了喷嘴堵塞后高压水直接进入磨料罐引起磨料输送系统失效问题。
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| 关 键 词： | 微磨料水射流 流量控制 切割头 |
Design and research on cutting head for micro abrasive water jet |
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| LIU Ke-fu,LEI Yu-yong,JIANG Dai-jun.Design and research on cutting head for micro abrasive water jet[J].Machinery Design & Manufacture,2011(9). |
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| Authors: | LIU Ke-fu LEI Yu-yong JIANG Dai-jun |
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| Affiliation: | LIU Ke-fu,LEI Yu-yong,JIANG Dai-jun (School of Mechanical Engineering and Automation,Xihua University,Chengdu 610039,China) |
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| Abstract: | In traditional cutting head for abrasive water jet,abrasives are usually fed into the cutting head by negative pressure,which is poor in reliability,non-uniform in suction,and unavailable precise in control of the abrasive flow rate.A new type of cutting head for micro abrasive water jet and its control sys-tem are designed based on screw pumping principle.And an auger mechanism is used to feed the abrasives initiatively,which is driven by an electrical step motor and the rotating speed of the step motor is... |
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| Keywords: | Micro abrasive water jet Flow control Cutting head |
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