拉绳开关PLR20-2D-G拉绳开关PLR20-2D-G拉绳开关PLR20-2D-G 输送机PLR20-2D-G拉绳开关安装说明: 1、PLR20-2D-G拉绳开关成对安装在皮带机左右两侧,在皮带机旁角铁架钻Ф12mm孔,用M10×40mm螺栓紧固拉绳开关。 2、拉绳开关每隔40米安装1台,其位置应低于皮带及便于现场工作人员使用。 3、拉绳系在一关臂上,拉绳推荐使用覆塑钢丝绳,直径3~5mm均可。钢丝绳用绳夹固定,每隔3米左右安装一个托环,以免钢丝绳垂挠度过大,保证拉绳动作可靠。在满足开关正常工作的前提下,尽可能拉紧绳索,减少钢丝绳垂挠度。 4、对于爬坡段皮带机,应尽量缩短拉绳开关间距,及拉绳长度。 5、接线:拉绳开关出厂时配有长度1.2米四芯橡套电缆,芯线上配有1、2、3、4线号,其中1、2为常开接点是报警信号,3、4为常闭接点是停机信号 PLR20-2D-G拉绳开关介绍: 随着煤矿生产规模的扩大和生产数字化程度的提高,对煤矿安全生产的要求也在不断提高,作为煤矿生产运输设备的胶带输送机,其安全可靠的运行显得非常重要。本文以矿用胶带输送机常见故障为研究对象,针对目前矿用胶带输送机保护种类不全、可靠性低等问题,结合单片机和传感器技术,对胶带输送机的保护系统进行了设计,研究胶带输送机打滑、超温、跑偏、堆煤、烟雾等常见故障的发生机理,设计可行的传感器检测方法,通过单片机对胶带输送机故障进行报警和控制胶带输送机停机及相关保护装置动作。 LJ4A3-1-Z/BX,LJ4A3-1-Z/AX,LJ4A3-1-Z/BY,LJ4A3-1-Z/AY, LJ5A3-1-Z/BX, LJ5A3-1-Z/AX, LJ5A3-1-Z/BY,LJ5A3-1-Z/AY,LJ6A3-1-Z/BX,LJ6A3-1-Z/AX,LJ6A3-1-Z/BY, LJ6A3-1-Z/AY,LJ6A3-1-Z/EX,LJ6A3-1-Z/DX, LJ6A3-1-Z/EZ, LJ6A3-1-Z/DZ,LJ6A3-2-Z/BX, LJ6A3-2-Z/AX,LJ6A3-2-Z/BY,LJ6A3-2-Z/AY,LJ6A3-2-Z/EX,LJ6A3-2-Z/DX, LJ6A3-2-Z/EZ, LJ6A3-2-Z/DZ,LJ8A3-1-Z/BX, LJ8A3-1-Z/AX, LJ8A3-1-Z/BY, LJ8A3-1-Z/AY,LJ8A3-1-Z/EX, LJ8A3-1-Z/DX,LJ8A3-1-Z/EZ,LJ8A3-1-Z/DZ,LJ8A3-2-Z/BX,LJ8A3-2-Z/AX, LJ8A3-2-Z/BY, LJ8A3-2-Z/AY,LJ8A3-2-Z/EX,LJ8A3-2-Z/DX, LJ8A3-2-Z/EZ,LJ8A3-2-Z/DZ,LJ10A3-2-Z/BX LJ10A3-2-Z/AX, LJ10A3-2-Z/BY, LJ10A3-2-Z/AY, LJ10A3-2-Z/EX, LJ10A3-2-Z/DX, LJ10A3-2-Z/EZ, LJ10A3-2-Z/DZ, LJ12A3-2-Z/BX, LJ12A3-2-Z/AX, LJ12A3-2-Z/CX LJ12A3-2-Z/BY, LJ12A3-2-Z/AY, LJ12A3-2-Z/CY, LJ12A3-2-Z/EX, LJ12A3-2-Z/DX
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