起吊质量在16t以下的汽车起重机一般都不安装力矩限制器,只安装起质量显示器和起升高度限位器。其中,起升高度限位器的作用是在吊钩起升碰到限位器重锤时,使高度限位器的行程开关接通起重机驾驶室内的声光报警装置并发出报警信号,提示起重机操作人员立即停止起升操作,起到安全保护作用。这种高度限位控制方式存在的主要 Lifting the quality of the following 16t crane truck generally do not install the torque limiter, only install the quality display and lifting height limiter. Among them, the lifting height of the stopper is the lifting hook hit the stopper when the hammer, the height limiter trip switch connected to the crane sound and light alarm cab and alarm signal to prompt crane operation Personnel immediately stop the lifting operation, play a safety role. This height limit control exists