泥浆泵凹槽形仿生活塞寿命试验及耐磨机理分析

发布时间：2018-04-19 08:39

本文选题：仿生 + 泥浆泵活塞　；参考：《机械工程学报》2017年21期

【摘要】：为提高泥浆泵活塞使用寿命,模仿自然界生物体表形态,在现有泥浆泵活塞工作表面加工不同尺寸的凹槽形仿生单元体,在相同的试验条件下,对比研究泥浆泵仿生活塞与标准活塞的使用寿命。试验结果表明,合理的凹槽形仿生单元体设计可以明显提高活塞使用寿命,本研究中最大可提高BW-160型泥浆泵活塞寿命69.52%;仿生活塞使用寿命受凹槽宽度的影响大于凹槽间距的影响;凹槽形仿生单元体尺寸过小,活塞寿命提高不明显,凹槽形仿生单元体尺寸过大,反而降低活塞寿命。分析了仿生活塞耐磨机理,即凹槽形仿生单元体的存在,能优化活塞表面受力情况,增大储油空间,改善泥浆泵活塞缸套系统界面润滑条件,是提高泥浆泵活塞使用寿命的重要原因。
[Abstract]:In order to improve the service life of slurry pump piston and imitate the natural biological surface shape, different sizes of grooved bionic unit bodies are machined on the working surface of existing mud pump pistons. Under the same test conditions,The service life of bionic piston and standard piston of mud pump is compared.The test results show that the reasonable design of the grooved bionic unit body can obviously improve the service life of the piston.In this study, the maximum piston life of BW-160 type mud pump can be increased by 69.52; the service life of bionic piston is influenced by the width of grooves more than the spacing of grooves; the size of grooved bionic units is too small, and the life of piston is not improved obviously.The size of the grooved bionic unit is too large to reduce the piston life.The wear resistance mechanism of bionic piston is analyzed, that is, the existence of grooved bionic unit body can optimize the force on the piston surface, increase the oil storage space, and improve the interface lubrication condition of the slurry pump piston liner system.It is an important reason to improve the service life of mud pump piston.
【作者单位】：吉林大学工程仿生教育部重点实验室;海南大学机电工程学院;
【基金】：国家自然科学基金(51375205) 吉林省科技发展计划(20160307009GX)资助项目
【分类号】：TE92

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