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在大中型起重机上装有电子式或机—电式超负荷自停系统,它是起重机的重要安全保护装置。现以日本加藤40t起重机MS-3型超负荷自停系统为例,说明其检修方法。1 工作原理MS-3型超负荷自停系统为机—电式。该系统主要由负荷实际值检测机构、吊臂长度检测机构。吊臂角度检测机构、极限数据储存器、比较器、显示装置、报警装置、自动停止装置等
The large and medium-sized cranes are equipped with an electronic or machine-electric overload self-stop system, which is an important safety protection device for cranes. Now taking the example of the Japanese Kato 40t crane MS-3 overload self stop system as an example to illustrate its maintenance method. 1 Working principle The MS-3 overload stop system is machine-electric. The system mainly consists of load actual value detection mechanism and boom length detection mechanism. Jib angle detection mechanism, limit data storage, comparator, display device, alarm device, automatic stop device, etc.