大型射线探伤防护门一般均甚为沉重,有的重量超过四吨。对于如此重的门予以手工开启,劳动强度当然很大,虽然有的单位系用卷扬机启动,但效果也不理想。我厂对属单开手推门的挂臂(10)进行改造,增加了制动器(1)、电机(2)、联轴器(3)和蜗杆减速器(4),通过齿轮(5,6)带动门轮(7),在轨道(8)上同步转动使手动门成为5m/min 运动速度的电动门。 Large-scale radiation detection protection doors are generally very heavy, and some weigh more than four tons. For such a heavy door to be manually opened, of course, a great labor intensity, although some units were started with a hoist, but the effect is not satisfactory. Our factory rebuild the hanging arm (10) which is a single-handed door and add the brake (1), motor (2), coupling (3) and worm reducer (4) ) Drive the gate wheel (7) and synchronously rotate on the rail (8) to make the manual door an electric door at a moving speed of 5m / min.