皮带输送机断带保护器设计.rar

摘要
带式输送机是一种输送松散物料的主要设备,因其具有输送能力大、结构简单、投资费用相对较低,以及维护方便等特点而被广泛应用于港口、码头、冶金、热电厂、焦化厂及煤矿等运输物料。然而在长期使用过程中由于胶带自身原因和外在因素的影响,常发生胶带的断带事故,使得胶带、减速器损坏,,甚至人员伤亡。分析了断带的原因,讨论了国内外皮带的研究现状及现有各种皮带断带抓捕工具的研究现状。针对带式输送机断带的实际情况,设计了偏心轮夹紧机构,主要为能实现输送带断裂后夹紧或防止输送机倒转。其整个系统主要由偏心轮夹紧机构、液压泵站和单片机控制系统组成。整个系统工作过程:通过速度传感器动态检测带速的变化,由A/D转换器输入单片机,通过单片机进行断带判断处理与夹紧命令的输出,动态切断驱动滚筒电源,并使液压泵站的电磁换向阀动作,从而启动液压缸夹紧机构,实现断带的夹紧。有效减少了断带带来的损失,缩短了维修的时间,提高了生产效率。
关键词:带式输送机;偏心轮;单片机;速度传感器;液压泵站
ABSTRACT
    Belt conveyor is a kind of main equipments which transport lax materials, it is widely used in port ,wharf ,metallurgy, hot power station, burnt turn factory and coal mine enterprise etc. To transport materials, because it is has the characteristics of great transport power, simple structure, opposite lower investment expenses and convenient breakdown maintenance etc. However in the process of using over a long period due to the influence of reason and external factor of the tape and gear reducer damage, the serious hour even can destroy the frame fixed link, resulting in great quantities pile up of the tape and material but stop production, even personnel's death and injury. The analysis settles the reason for take and research present condition and various existing leather belt which discussed domestic and international leather belt break to grasp present condition of catch the total .Aiming at the belt conveyor breaking to take of actual ,eccentric cam holding device is designed, mainly for carrying out belt conveyor after splitting clip tightly or preventing from transporting machine inversion .The whole system mainly consists of eccentric cam holding device ,hydraulic power unit puter on-slice control system. Work process: Spread the variety that the feeling machine dynamic state examination takes soon trough a velocity transducer in puter on-slice from A/D converter, carry on breaking to take judgment processing and clip tightly order any of exportation through puter on-slice, the dynamic state