起重机起升机构溜钩原因分析及改进设计  

Slip hook causes and improvement design of hoisting mechanism of crane

作　　者：齐健 刘艳群 刘军 柯宏发 Qi Jian;Liu Yanqun;Liu Jun;Ke Hongfa

机构地区：[1]航天工程大学航天保障系,北京102206 [2]63601部队,酒泉732750

出　　处：《起重运输机械》2023年第2期63-68,共6页Hoisting and Conveying Machinery

摘　　要：文中针对采用变频调速控制的起重机起升机构溜钩问题,进行了液压推杆制动器失效机理分析;针对液压推杆制动器单制动应用需求,分析了液压推杆制动器控制电路,提出了控制电路的优化方案;结合变频器零速保持和位置测量功能,实现了起重机起升机构溜钩问题的监测和故障应急处置的软件优化;并从安装调整和维护使用等方面提出了有效的防治措施,提高了起重机设备使用的安全性和可靠性。In this paper,the failure mechanism of hydraulic push-rod brake is analyzed for hook gliding of the hoisting mechanism of cranes adopting variable frequency speed regulation system.Considering the requirements in singlecircuit braking application of hydraulic push-rod brake,the control circuit of hydraulic push-rod brake is analyzed and an optimization plan is put forward.Combined with the zero-speed maintenance and position measurement functions of frequency converter,the software optimization of monitoring and emergency handling of hook gliding of crane hoisting mechanism is realized.The effective preventive measures in installation,adjustment,maintenance and operation are put forward,which improves the operation safety and reliability of crane equipment.

关 键 词：起重机 溜钩 液压推杆制动器 单制动 控制电路 

分 类 号：TH215[机械工程—机械制造及自动化]