摘要
某特种起重机要求在特定工况具有高精度位置保持功能,针对其下沉量偏大问题进行了原因分析,定位于油液的热胀冷缩性对下沉量的影响,针对该问题,进行了油液热胀冷缩性对下沉量影响机理分析,提出了增加温控闭环的低成本改进措施,并经试验验证,结果表明改进措施效果良好。
A special crane requires high precision position holding function in specific working conditions.This paper analyzes the reasons for the large subsidence of a special crane,and focuses on the influence of thermal expansion and cold contraction of oil on the subsidence.In order to solve this problem,the influence mechanism of thermal expansion and cold contraction of oil on the subsidence was analyzed,and the improved measures of increasing the closed-loop temperature control were put forward.The experimental results showed that the improved measures were effective.
作者
吕明亮
郭建伟
马跃峰
张庆生
崔伟
LV Ming-liang;GUO Jian-wei;MA Yue-feng;ZHANG Qing-sheng;CUI Wei(Beijing Space Launch Technology Institute,Beijing 100076,China;Shanxi Qinghua Machine Factory,Changzhi 046000,China)
出处
《液压气动与密封》
2024年第3期114-118,共5页
Hydraulics Pneumatics & Seals
关键词
起重机
下沉量
温控闭环
分析与改进
crane
subsidence
closed-loop temperature control
analysis and improvement
