中南大学学报（自然科学版）2018，Vol.49Issue(4)：839-847,9.DOI:10.11817/j.issn.1672-7207.2018.04.010
基础振动下液压锁紧回路背压阀的选型方法
Selection method of hydraulic lock circuit counterbalance valve with foundation vibration
摘要
Abstract
Focused on the impactof counterbalance valve on lock circuit's dynamic characteristic in vibration environment, the simulation models for three kinds of lock circuits with the throttle valve, sequence valve and balance valve which are used as counterbalance valve were established, and experimentally verified. A curve was obtained showing the foundation vibration and load influence on hydraulic cylinder speed, by comparing the effects of counterbalance valve under the condition of no load, constant load and variable load on lock circuit's dynamic characteristic. The results show that compared to using balance valve as counterbalance valve, using throttle valve and sequence valve has a better stability under the condition of vibration environment in constant load and with the variable load between 0?90 kN, but balance valve has better stability when alternate load and the variable load is larger than 100 kN. New method provides a reference for counterbalance valve selection in lock circuit.关键词
背压阀/锁紧回路/基础振动/选型/动态特性Key words
back-pressure valve/locked loop/foundation vibration/selection/dynamic characteristic分类
机械制造引用本文复制引用
潘文龙,张怀亮,王蔚坪..基础振动下液压锁紧回路背压阀的选型方法[J].中南大学学报（自然科学版）,2018,49(4):839-847,9.基金项目
国家重点基础研究发展计划(973计划)项目(2013CB035400)(Project(2013CB035400) supported by the National Basic Research Development Program (973 Program) of China) （973计划）
