Journal of South China University of Technology(Natural Science) >

2023 , Vol. 51 >Issue 9: 19 - 29

DOI: https://doi.org/10.12141/j.issn.1000-565X.220693

Mechanical Engineering

Study of Distribution Structure for High Water-Based Hydraulic Motor

Expand
  • 1.School of Mechanical and Electrical Engineering，China University of Mining and Technology，Xuzhou 221110，Jiangsu，China
    2.Jiangsu Key Laboratory of Mine Mechanical and Electrical Equipment，China University of Mining and Technology，Xuzhou 221116，Jiangsu，China
    3.School of Mechanical and Electrical Engineering，Xuzhou Institute of Engineering，Xuzhou 221110，Jiangsu，China
于鸣泉（1995-），男，博士生，主要从事液压马达设计及理论、水元件研究。E-mail:mqyu@cumt.edu.cn

Received date: 2022-10-24

  Online published: 2023-03-28

Supported by

the National Natural Science Foundation of China(51778186)

Fold

Abstract

High water-based hydraulic motors can be used in fields such as coal mining, food, and underwater operation due to their medium-friendly nature. However, currently high water-based motors still use hydraulic oil motor structure, only replacing the medium with high-water-based emulsion. Traditional shaft and disk flow structures will suffer severe leakage and rusting phenomena under low-speed, high-pressure, and high water-based conditions. Additionally, the current valve flow structure problem is that one plunger needs to be equipped with two check valves, which causes the motor to have a larger volume, and the flow valves must be accurately matched. Otherwise, there will be channeling and fluid entrapment phenomena. In view of the above problems, a shuttle valve flow structure was proposed to control the motor flow distribution, which consists of a shuttle valve and a cam. The cam drives the plunger’s liquid intaking and discharging process. Firstly, the flow valve was structurally designed and theoretically analyzed, revealing its flow distribution principle. Secondly, the dynamic response characteristics of its parameters were analyzed in AMESim. The cam driven by the sine acceleration function curve was selected to control the valve core, and the flow-through hole with a diameter of 0.6 mm, with small pressure and flow fluctuations, was used. Additionally, the motor’s torque fluctuation was 7.39%, verifying the shuttle valve’s good flow distribution performance. Fluent simulation was used to optimize the valve’s internal flow field and select the notch structure with small pressure drop and uniform velocity distribution. Based on this, prototype preparation and experimental analysis were carried out. Under 16 MPa working condition, the plunger chamber can quickly build pressure, the pressure fluctuation at the inlet of the flow valve is 12.5%, and the leakage is 2 drops/min. It can be seen that after the shuttle valve is applied to the high water-based hydraulic motor, stable flow distribution can be achieved.

热压焊是一种应用于电子元器件的焊接方法，热压焊头温度的稳定性是焊接质量的决定性因素。热压焊接时间短，热电偶测温热惯性及随机噪声对热压焊过程温度控制有较大影响。文中研制了一种以STM32F407微处理器为核心的热压焊电源，设计了电源的主电路与控制系统；通过对热电偶的延迟响应和时间常数误差的分析，设计了一种基于扩展卡尔曼滤波器（EKF）的热压焊控制方法，实现了脉宽调制以及输出温度的稳定控制；分析了热压焊头的加热和热辐射效应，建立了热压焊头的温度模型，并以上述的主电路和控制方案为基础，建立了热压焊系统仿真模型，验证控制方法的有效性。搭建热压焊系统试验平台，按照仿真模型设定的工艺参数进行试验，将仿真温度波形与试验测量波形进行对比分析。结果表明：仿真与试验温度波形趋势呈现相同变化规律，相较于仅PID控制，基于EKF的控制方法具有更短的调节时间，减少了有效噪声对热压焊系统的影响，提高了温度控制的稳定性；该热压焊系统仿真模型为热压焊电源设计提供了一种参考模型；最后进行了FPC与PCB板、同轴线与LED电路板热压焊试验，实现了元器件的可靠连接。

Key words： high water-based hydraulic; distribution structure; numerical simulation; hydraulic motor; fluid transmission

Cite this article

YU Mingquan, ZHAO Jiyun, MAN Jiaxiang, et al. . Study of Distribution Structure for High Water-Based Hydraulic Motor[J]. Journal of South China University of Technology(Natural Science), 2023 , 51(9) : 19 -29 . DOI: 10.12141/j.issn.1000-565X.220693

References

1 刘银水，朱玉泉，李壮云 ．水压传动技术的特征与新进展［J］．液压与气动，2006（2）：66-69．
  LIU Yinshui， ZHU Yuquan， LI Zhuangyun ．The features of water hydraulics and its new development［J］．Chinese Hydraulics & Pneumatics，2006（2）：66-69．
2 陈卓如 ．低速大扭矩液压马达理论、计算与设计［M］．北京：机械工业出版社，1989．
3 马丽然 ．高水基乳化液成膜特性及机理研究［D］．北京：清华大学，2010．
4 邱冰静，赵继云，周辉 ．自平衡阀配流式低速大扭矩高水基液压马达的建模与仿真［J］．机床与液压，2018，46（3）：143-146．
  QIU Bingjing， ZHAO Jiyun， ZHOU Hui ．Modeling and simulation on low-speed large-torque high water-based hydraulic motor with self-balanced distributing valves［J］．Machine Tools and Hydraulics，2018，46（3）：143-146．
5 王震，聂松林，尹方龙，等 ．基于PumpLinx纯水轴向柱塞泵配流盘卸荷槽结构的仿真分析［J］．液压与气动，2016（2）：11-16．
  WANG Zhen， NIE Song-lin， YIN Fang-long，et al ．The simulation and analysis of silencing groove structure of valve plate within water hydraulic axial piston pump based on PumpLinx［J］．Chinese Hydraulics & Pneumatics，2016（2）：11-16．
6 侯亮，赖伟群，崔凯，等 ．轴向柱塞马达平面配流副油膜润滑特性建模及分析［J］．华南理工大学学报（自然科学版），2021，49（2）：99-109．
  HOU Liang， LAI Weiqun， CUI Kai， et al ．Modeling and analysis of lubrication characteristics of oil film in plane distribution pair of axial piston motor［J］．Journal of South China University of Technology （Natural Science Edition），2021，49（2）：99-109．
7 申文强，聂松林，尹方龙，等 ．一种新型低速大扭矩水液压马达结构设计及仿真分析［J］．液压与气动，2019（6）：17-21．
  SHEN Wen-qiang， NIE Song-lin， YIN Fang-long，et al ．Structure design and simulation analysis of a new type low-speed large-torque water hydraulic motor［J］．Chinese Hydraulics & Pneumatics，2019（6）：17-21．
8 邓海顺，于海武，王晓雷 ．轴向柱塞泵配流副低压区织构化试验研究［J］．华中科技大学学报（自然科学版），2012，40（6）：16-19．
  DENG Haishun， YU Haiwu， WANG Xiaolei ．Study on tribological performance of textured portplates of axial piston pumps［J］．Journal of Huazhong University of Science and Technology（Natural Science Edition），2012，40（6）：16-19．
9 毋少峰 ．仿生非光滑表面配流副润滑承载机理数值模拟及摩擦磨损实验研究［D］．秦皇岛：燕山大学，2017．
10 HUANLONG L， GUOZHI W， JIAN K，et al ．Research on the anti-sticking characteristics of water hydraulic piston friction pairs with hydrostatic bearing［J］．Lubrication Science，2013，25（7）：453-462．
11 贺小峰，杨明国，李壮云 ．水压柱塞泵配流阀的设计及试验研究［J］．中国机械工程，2004（10）：18-20．
  HE Xiaofeng， YANG Mingguo， LI Zhuangyun ．Design and experimental research on the check valves of water hydraulic piston pump［J］．China Mechanical Engineering，2004（10）：18-20．
12 LIU H， KE J， YU L ．Research on dynamic and hydrostatic lubrication characteristics of water hydraulic slipper friciton pairs［J］．China Mechanical Engineering，2011，22（15）：1802-1805，1836．
13 汤何胜，訚耀保，王康景 ．带变速阀挖掘机液压马达的转速切换特性［J］．华南理工大学学报（自然科学版），2013，41（11）：79-84．
  TANG He-sheng， YIN Yao-bao， WANG Kang-jing ．Speed switching characteristics of hydraulic motor in excavator with variable speed valve［J］．Journal of South China University of Technology （Natural Science Edition），2013，41（11）：79-84．
14 李林 ．阀配流变量轴向柱塞马达及其变量机构研究［D］．杭州：浙江大学，2014．
15 泮健，施光林 ．数字配流与调速式液压马达的建模与实现［J］．上海交通大学学报，2011，45（11）：1607-1612．
  PAN Jian， SHI Guanglin ．Modeling and implementation of hydraulic motor with digital distribution and speed adjusting mechanism［J］．Journal of Shanghai Jiaotong University，2011，45（11）：1607-1612．
16 邱冰静 ．自平衡式阀配流低速大扭矩高水基液压马达关键技术研究［D］．徐州：中国矿业大学，2018．
17 周辉 ．自平衡式高低压配流阀组低速大扭矩乳化液马达的设计与研究［D］．徐州：中国矿业大学，2016．
Options
Outlines

/

〈 〉