我单位设制了一种带孔物品装卸时用的立式吊具,凡中心带孔且孔壁有一定强度的物品均可采用此种吊具吊运,吊具的大小可视物品的实际重量、孔径大小决定、结构如图1所示。它主要由四个胀爪、四个橡胶圈、锥轴、组合盘套及压轴装置,包括压杆、压杆中轴座、重空钩连接吊具等组成。 I set up a unit with a vertical loading and unloading items used when the vertical spreader, where the center of the hole wall and a certain strength of the items can be used to lift the spreader, the size of the spreader can be visualized the actual items Weight, aperture size decision, the structure shown in Figure 1. It is mainly composed of four claws, four rubber rings, cone shaft, combination disk cover and the finale device, including the pressure rod, pressure rod shaft seat, heavy hook connection spreader and other components.