排灌机械工程学报2013，Vol.31Issue(6)：506-510,5.DOI:10.3969/j.issn.1674-8530.2013.06.010
快速卷扬式启闭机液压阻尼调速器的应用
Application of hydraulic damping governor in rapid winch-hoist
摘要
Abstract
In order to solve repeated oscillations,heating and burning of friction plates in the operation of centrifugal governor,applying the speed control principle of hydraulic hoist to rapid winch-hoist,hydraulic damping governor is adopted to improve the winch-hoist governor.In this paper,the speed control principle of damping governor is expounded; and a fluid mechanics model of governor is established; flow and damping moment calculation formulae are deduced.The experiment results of QPK-2 × 160 kN type rapid winch-hoists,equipped with two different governors,were analyzed.The results show that fluid control is mainly related to the diameter of the damper; the damping moment is inversely proportional to the square of the damper area ; the damping moment increases as the angular speed of the damper increases.The hydraulic damping governor has a good damping characteristics,which can absorb load vibration,impact,reduce moment and reduce time and range of the speed surging.Only moment balance can be achieved after 2-3 oscillation absorptions.The results also show that hydraulic damper governor can prevent equipment resonance,improve system smoothness and stability,enhance the hoist reliability of winch-hoist system,make gate descend at an even speed and prolong its service life,thus extend the application scope of rapid winch-hoist.关键词
快速卷扬式启闭机/摩擦力矩/载荷力矩/阻尼力矩/离心调速器/液压阻尼调速器Key words
rapid winch-hoist/ friction moment/ load moment/ damping moment/ centrifugal governor/hydraulic damper governor分类
农业科技引用本文复制引用
王煦,陈军,吴舒海..快速卷扬式启闭机液压阻尼调速器的应用[J].排灌机械工程学报,2013,31(6):506-510,5.基金项目
江苏省水利科技重点资助项目(2011072,2012028) （2011072,2012028）
