提升机过放定长液压缓冲系统设计与仿真  

Design and simulation of hoist’s over release fixed-length hydraulic buffer system

作　　者：岳巧红[1] 杨汉嵩 YUE Qiaohong;YANG Hansong(Faculty of Engineering,Huanghe Science and Technology College,Zhengzhou 450063;College of Intelligent Equipment Engineering,Wuxi Taihu University,Wuxi 214063)

机构地区：[1]黄河科技学院工学部,河南郑州450063 [2]无锡太湖学院智能装备工程学院,江苏无锡214063

出　　处：《机械设计》2024年第9期138-143,共6页Journal of Machine Design

基　　金：江苏省高校自然科学研究基金资助项目(18KJB460027)。

摘　　要：针对提升机箕斗过放缓冲位移受过放工况影响较大问题,提出了一种提升机过放定长缓冲系统,研究了定长缓冲原理,计算了其最大缓冲能力,基于AMESim软件对提升机过放定长缓冲系统仿真模型进行了搭建,在节流阀开度线性减小的条件下进行了仿真研究,给出了初始参数下的定长缓冲性能,对过放质量和过放速度对箕斗缓冲位移、缓冲速度、液压缸缓冲腔压力的影响效果进行了仿真分析。研究结果表明:提出的提升机过放定长缓冲系统实现了缓冲位移可控,箕斗缓冲位移与设定值相对误差为1%;过放质量和过放速度变化过程中,箕斗缓冲位移均为0.1 m;定长缓冲系统达到最大缓冲能力工况下,箕斗位移、箕斗速度和液压缸缓冲腔压力开始产生明显波动。研究结果对提升机过放定长缓冲装置研制有较好的理论指导。Since the hoist skip’s over release buffer displacement is greatly affected by the over release working conditions,a hoist’s over release fixed-length buffer system is proposed in this article.The fixed-length buffer principle is explored,the max-imum buffer capacity of the hoist’s over release fixed-length buffer system is calculated.AMESIM is used to set up the simulation model of the hoist’s over release fixed-length buffer system.The simulation research is carried out with linear reduction of throttle valve opening;The fixed-length buffer performance with initial parameters is worked out.Efforts are made to simulate and analyze the effects of the over release mass and speed on the skip’s buffer displacement and buffer speed as well as the hydraulic cylin-der’s buffer chamber pressure.The results show that the hoist’s over release fixed-length buffer system ensures controllable buff-er displacement.The error between the skip’s buffer displacement and the set value is 1%.During the ever-changing over release mass and speed,the skip’s buffer displacement remains 0.1 m.When the fixed-length buffer system reaches the maximum buffer capacity,the skip’s buffer displacement and buffer speed as well as the hydraulic cylinder’s buffer chamber pressure begin to fluctuate obviously.This study provides theoretical guidance for research and development of the hoist’s over release fixed-length buffer system.

关 键 词：提升机 过放 定长缓冲 最大缓冲能力 节流阀 波动 

分 类 号：TH137[机械工程—机械制造及自动化]