汽车起重机卷扬随动系统设计与应用  

作　　者：李维新 

机构地区：[1]三一汽车起重机械有限公司,长沙410000

出　　处：《科技创新与应用》2024年第32期127-130,共4页Technology Innovation and Application

摘　　要：汽车起重机因机动性好、吊载灵活的优点已成为施工作业中的吊载主力,其主要包含汽车底盘、变幅机构、回转机构、伸缩机构和吊重机构,传统模式下要完成伸臂动作,必须不断地放主钩、放副钩、伸臂、再次放钩,并且稍不留神吊钩容易冲顶毁坏臂头滑轮。完成缩臂动作首先要收主钩、收副钩、缩臂、再次收绳,不然吊钩容易落地引起张力不足导致卷扬钢丝绳乱绳。卷扬随动技术能够很好地解决这些痛点,在伸缩臂过程中卷扬自动跟随旋转,旋转速度跟随臂长变化率,实时保证吊钩悬挂于安全范围内,包含3种模式(1)臂头变化模式——伸缩臂过程中吊钩和臂头的距离实时保持固定;(2)地面随动模式——吊钩和地面的距离实时保持固定;(3)智能随动模式——根据臂长自动调整吊钩高度,伸臂越长放绳越多。Truck cranes have become the main lifting force in construction operations due to their advantages of good mobility and flexible lifting.They mainly include car chassis,luffing mechanism,slewing mechanism,telescopic mechanism and lifting mechanism.In the traditional mode,to complete the arm extension action,you must constantly release the main hook,the auxiliary hook,the arm extension,and the hook again.Moreover,if you are not careful,the hook can easily hit and destroy the arm head pulley;To complete the arm retraction action,we must first retract the main hook,the auxiliary hook,the arm,and the rope again.Otherwise,the hook will easily fall to the ground,causing insufficient tension and causing chaos to the winding wire rope.Winding follow-up technology can solve these pain points well.During the telescopic boom process,the winch automatically follows the rotation,and the rotation speed follows the change rate of the boom length,ensuring that the hook is suspended within a safe range in real time.There are three modes,①Arm head change mode-the distance between the hook and the arm head remains fixed in real time during the telescopic boom process;②Ground follow-up mode-the distance between the hook and the ground remains fixed in real time;③Intelligent follow-up mode-According to the arm length,the height of the hook is automatically adjusted,and the longer the arm is extended,the more ropes are placed.

关 键 词：汽车起重机 卷扬随动 系统设计 吊载 应用 

分 类 号：TH213[机械工程—机械制造及自动化]