555时基电路在螺杆式启闭机启闭保安中的应用  

Application of 555 time-base circuit in opening/closing security of screw hoist

作　　者：齐烨[1] QI Ye(Susong Changjiang River Course Administration Bureau,Susong 246531,China)

机构地区：[1]安徽省宿松长江河道管理局,安徽宿松246531

出　　处：《广西水利水电》2020年第4期93-95,共3页Guangxi Water Resources & Hydropower Engineering

摘　　要：在无任何保护措施的情况下,螺杆式启闭机在启闭闸门时往往发生关闭不到位的情况,容易造成启闭机和闸门损坏。为了解决闸门安全运行问题,将时基电路引入闸门启闭时的保安电路中,可以确保闸门在启闭过程中的安全。Screw hoist frequently fails to close the gate in place when no security measure is available, which likely causes damage of hoist and gate.The application of time-based circuit in the security circuit of gate hoist is able to ensure the gate safety in course of opening or closing.

关 键 词：启闭机 保安 时基电路 

分 类 号：TN79[电子电信—电路与系统]