文章摘要
孙天健,李军.非对称油缸受力方向对停位保持的影响[J].机床与液压,2017,45(16):128-130
非对称油缸受力方向对停位保持的影响
Relationship between Direction of the Force and Holding Position to Asymmetric Cylinder
  
DOI:10.3969/j.issn.1001-3881.2017.16.033
中文关键词: 油缸内泄漏  非对称油缸  负载受力方向  停位保持
英文关键词: Cylinder internal leakage  Asymmetric cylinders  Load direction  Holding position
基金项目:
作者单位E-mail
孙天健 中冶赛迪工程技术股份有限公司 20020013@qq.com 
李军 中冶赛迪工程技术股份有限公司  
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中文摘要:
      在确定的液压系统中,油缸内泄漏的影响因素主要是油缸两腔的压差。在油缸负载保持状态下,针对由于内泄漏而产生的位移变化建立仿真模型。仿真结果表明:正装法下降速度更慢,油缸最终将因两腔压差消失而停在某一位置;倒装法下降速更快,且油缸两腔压差一直存在,油缸将持续下降。因此,在设备设计中,需要设备停位保持的工况,采用正装法能更好地满足要求。
英文摘要:
      In a certain hydraulic system,main impact factor to cylinder internal leakage is cylinder two chamber differential pressure.In the state that cylinder load was held,the simulation model was built.The simulation results show that the decline rate of the inverted installation is faster than that of the normal installation.In the normal installation,cylinder will stop at a certain position due to two chamber pressure difference eventually disappearance.But in the inverted installation,cylinder will continue to decline due to always existing pressure difference between two chamber.So in the device design,using the normal installation is better.
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