摘要
针对塔式起重机传统力矩测控中存在的问题,提出了一种新型智能测控仪的设计方案,采用高精度载荷传感器测量物重,采用直射式超声测距法测量滑车至旋转中心的距离;通过MCU微控制器完成力矩计算,并对起重机的电气系统实施自动控制,实现自动预警和超限强行停车,同时将各种数据直观地显示给操作员。应用情况证明:该力矩测控仪工作稳定、操作方便,测重范围可达0～10 kN,测重精度可达1.0%,测距范围可达0～30 m,测距精度可达1.0%,力矩设定精度和力矩控制精度可达1.0%,显著增强了塔机力矩测控的安全性。
To solve the shortcomings of the traditional moment measure, a novel solution was developed, and the system adopt high-precision load sensor to measure the weight, adopt directed supersonic sounding to measure the distance between the pulley and the rotating center; MCU was used to realize the moment calculation, the autocontrol of the crane electrical system, and the data presentation. The applied results show that the intelligent moment meter has the characteristic of high stability and accessibili- ty. Weight measuring range of meter is from 0 to 10 kN, weight measuring accuracy is 1.0% , distance measuring range of meter is from 0 to 30 m, distance measuring accuracy is 1.0%, moment precisions are 1.0%. And the security of tower crane moment measure can be enhanced markedly.
出处
《仪表技术与传感器》
CSCD
北大核心
2010年第3期34-35,38,共3页
Instrument Technique and Sensor
基金
廊坊师范学院青年基金项目(LSZQ200904)
河北省科技攻关项目(99213304D)
