门座起重机起升机构的位能回收及其检测

摘要

In view of the problems in potential energy recycling and the detection of lifting mechanism of the portal crane, the paper analyzes energy flow use and loss of the lifting mechanism during operation , describes the energy efficien-cy computational formula for the entire operating cycle of the lifting mechanism , introduces the detection method for poten-tial energy recycling , and gives specific procedures of the detection and wiring diagram .With the hoisting mechanism of MQ4040 port portal crane as the test prototype , the energy efficiencies before and after installing the energy-saving device are compared.The result shows that , after the energy recovery unit is installed , the energy efficiency index improves by 41.4%, indicating significant energy-saving effect .%针对门座起重机起升机构位能回收及其检测等问题,分析了起升机构工作过程中的能量流向利用和损耗,给出了起升机构(抓斗工况)一整个工作循环的能效计算公式,详细介绍了位能回收的检测方法,并给出了检测的具体流程和接线图.以MQ4040港口门座起重机起升机构为测试样机,对比分析了在不安装节能装置和安装节能装置下能效的差异,结果表明在安装能量回收装置后,能效指标值提高了41.4%,节能效果明显.