螺旋套筒,英文名Twist Socket,一种修复工具,主要用于取出锈死、损坏或圆角的螺母和螺栓 与常规的套筒六方、12方直槽不同,螺旋套筒内部为特殊的六刃/12刃锥形反螺旋槽,螺旋槽类似丝锥的牙齿,在使用时反螺旋槽能够牢固地咬紧螺母,从而比较省力地旋出锈死、损坏的螺母和螺栓; 螺旋套筒的材料一般采用高强度铬钼钢制造,耐磨性和冲击韧性较一般套筒好。
液压千斤顶又称机械式千斤顶,是由人力通过螺旋副传动,螺杆或螺母套筒作为顶举件。
The hoisting jack calls the mechanical hoisting jack, is by the manpower through the screw vice-transmission, the screw rod or the nut sleeve achievement goes against lifts.
新型预制钢筋混凝土梁柱抗震节点采用五环螺旋箍、一笔箍和在套筒中灌注无收缩高强砂浆的方法制作。
The method of 5-ring screw hoop, 1-pen hoop and non-shrinkage high-strength mortar poured into sleeve is used at the seismic joint of new-type prefabricated reinforced concrete beam-column.
螺旋千斤顶:采用螺杆或由螺杆推动的升降套筒作为刚性顶举件的千斤顶。
Screw jack: Uses the screw rod or the fluctuation sleeve which impels by the screw rod goes against as the rigidity lifts a hoisting jack.
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