Electro-hydraulic gantry combined belt breakage protection device

机电液门式组合断带保护装置

Abstract

The invention discloses an electro-hydraulic gantry combined belt breakage protection device comprising a plurality of braking mechanisms, encoders, an explosion-proof and intrinsic safety type programmable logic controller (PLC) electric cabinet, a remote input/output (I/O) module control operation box, a coal blocking alarm device, a voice alarm device, an explosion-proof vacuum electromagnetic starter and a hydraulic system which are arranged on a belt conveyer. The encoders monitor the operation status of a belt in real time and transmit a signal to the explosion-proof and intrinsic safety type PLC electric cabinet to analyze, and an electrical system accurately judges a belt breakage signal and then sends out a command to capture. The hydraulic system supplements the pressure to an energy storage device and releases the same, so that the brake mechanisms can quickly and accurately act. The electro-hydraulic gantry combined belt breakage protection device has the beneficial effects that: the signal acquisition is sensitive and accurate, the braking is flexible and quick, the installation is convenient and simple, the braking force is strong, the belt is tightened when sliding down, the belt is contacted in a full section surface when in braking and does not have secondary harm to the belt; and the whole device has a small dimension and is applicable to roadways with various working conditions.
本发明公开了一种机电液门式组合断带保护装置。包括安装在皮带输送机上的多个制动机构、编码器、隔爆兼本安型PLC控制动、远程I/O模块控制操作箱、堵煤报警装置、语音报警装置、隔爆型真空电磁起动器和液压系统。编码器实时的对皮带的运行状态进行监控并把信号传递给PLC进行分析,电气系统对断带信号进行准确的判断后发出指令进行抓捕动作。液压系统把压力补充到蓄能器并释放出来,保证制动机构能迅速、准确的动作。有益效果是:信号采集灵敏准确、制动灵活迅速、安装方便简单;制动力强大,皮带下滑时愈拉愈紧;制动时全段面接触皮带,不会对皮带造成二次损害;整机外形尺寸小、适应各种工况的巷道。

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    CN-102705274-AOctober 03, 2012中国重型机械研究院有限公司液压驱动断带保护系统
    CN-102705274-BDecember 10, 2014中国重型机械研究院有限公司液压驱动断带保护系统
    CN-103708208-AApril 09, 2014力博重工科技股份有限公司带有缓冲装置的断带抓捕装置综合性能安全试验系统
    CN-106185243-ADecember 07, 2016江苏师范大学Coal conveyor belt protection device and working method thereof