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施工用车梯一般用木或金属制成。梯前腿脚A、后腿脚B与胶轮低点C不在一个平面,而构成侧视∠ABC。梯身重心在B左侧。位移时,抬起推把,A、B随之被先后抬起,C着地,重心移至C。达目的地,放下推把,A、B着地,重心又移回B左,因梯身重>胶轮重,所以C被撬起,梯稳站待用。制作时可根据使用单位实际需要,做成两、三层的低梯或四层以上的高梯。顶脚板可宽些或长些,中间站人,两边放漆桶料斗,推时挡板阻其下滑。常带重料斗的梯,可在装轮轴底撑处上斜至后腿后侧某点装或焊一支撑。推把由两金属环固定在梯腰外侧,高
Construction ladders are generally made of wood or metal. The leg front leg A, the rear leg leg B and the rubber wheel low point C are not in one plane, but constitute the side view ABC. The center of gravity of the ladder is on the left side of B. When shifting, lift the push handle and A and B are lifted one after another. C touches the ground and the center of gravity moves to C. To reach the destination, put down the push handle, A and B touch the ground, and the center of gravity moves back to B. Because the ladder is heavy and the rubber wheel is heavy, C is picked up and the ladder station stands by. According to the actual needs of the use units, two or three low ladders or four or more high ladders can be produced. The footboard can be wider or longer. The middle station person puts paint hoppers on both sides. A ladder with a heavy hopper can be installed on the axle shaft at the bottom of the axle to a point behind the hind legs or welded to a support. The push handle is fixed on the outside of the ladder waist by two metal rings.