重庆理工大学学报（自然科学）

重庆理工大学学报（自然科学） ›› 2023, Vol. 37 ›› Issue (10): 190-201.

• 机械·材料 • 上一篇    下一篇

驱动与执行一体式小型汪克尔泵的研究

霍宇轩，张 帆，马明栋   

  1. （广州大学 机械与电气工程学院，广州 ５１０００６
  • 出版日期:2023-11-20 发布日期:2023-11-20
  • 作者简介:霍宇轩，男，硕士研究生，主要从事流体机械研究，Ｅｍａｉｌ：８７３２８２９１３＠ｑｑ．ｃｏｍ；通信作者 张建辉，男，博士，教授， 主要从事流体机械研究，Ｅｍａｉｌ：ｚｈａｎｇｊｈ＠ｎｕａａ．ｅｄｕ．ｃｎ。

A small wankel pump integrating the actuation component into the execution structure

  • Online:2023-11-20 Published:2023-11-20

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摘要： 提出了一种新型驱动与执行一体式汪克尔泵，将电机驱动组件集成到汪克尔泵的 执行结构中，在具有原本泵送功能的同时，能减少传动机构数目，缩短传动路径，提高效率与性 能，推进汪克尔泵的小型化与集成化的进程。将三角转子的缸体型线包络线的复杂曲线用简单 圆弧曲线代替，建立了缸体型线与三角转子型线的几何数学模型。通过对三角转子的动力学模 型、电机组件的机械特性、汪克尔泵工作室容积等进行分析，建立了输出转速、输出流量与结构 参数、输入电压、磁感应强度的匹配机制。运用高速摄像机对泵内工作室流场进行观察分析，验 证了泵送功能并得出了泵内工作室流场的流动特性。搭建实验平台对该泵进行转速、流量与压 力的泵送性能测试。实验结果表明：在输入电压为１８Ｖ、磁感应强度为２３ｍＴ条件下，输出转速 达到 ７６８．８６ｒ／ｍｉｎ，输出流量达到 ７．５５Ｌ／ｍｉｎ，输出压力幅值达到 ７ｋＰａ，容积效率为 ３８．４７％。 转速、流量、压力幅值随电压与磁感应强度的增加而增加。

关键词: 汪克尔泵, 驱动与执行一体, 小型化, 泵送性能, 流场观察

Abstract: In this paper,a concept for a small Wankel pump integrating the actuation component into the execution structure is proposed.The motor drive component is integrated into the execution structure of the Wankel pump,which not only has the original pumping function but also reduces the number of drive mechanisms to shorten the transmission path and improve the efficiency and performance to promote the miniaturization and integration process of the Wankel pump.The complex curve of cylinder shape line envelope of triangular rotor is replaced by simple circular arc curve and the geometric mathematical model of cylinder shape line and triangular rotor shape line is established to simplify the processing.Through the analysis of the dynamic model of the triangular rotor,the mechanical characteristics of the motor components and the working chamber volume of the Wankel pump,the matching mechanism of the output speed,the output flow and the structural parameters,the input voltage and the magnetic induction intensity is obtained.The high-speed camera is used to observe and analyze the flow field in the working chamber of the pump to verify its pumping function and obtain the flow characteristics of the working chamber fluid in the pump.An experimental platform is built to test the output pumping performance of speed of revolution,flow rate and pressure.The experimental results show that the maximum output flow rate reaches 7.55 L/min and the volumetric efficiency up to 38.47% when the input voltage stands at 18 V and the magnetic induction intensity 23 mT,corresponding to a speed of revolution of 768.86 r/min,an output flow rate of 7.55 L/min and an output pressure amplitude of 7 kPa.The speed of revolution,flow rate and pressure amplitude all increase with the rise of voltage and magnetic induction intensity.

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