1) Eccentric hoisting device
偏心升降装置
2) Lifting Device
升降装置
1.
In this article,the author introduces some installation technologies of integral steel box girders,such as applying simple equipment to draw across the bridge piers with a winch,and using lifting device to dropped girders into place,which is applicable in practice to installation of structure in large size.
介绍整体式钢箱梁应用简易设备牵引过孔、升降装置落梁就位的施工技术,为大体积构件安装提供借鉴。
3) jacking gear
升降装置
1.
The offshore drilling platform jacking gear is divided into two parts——the electric driving and the hydraulic actuation.
海上钻井平台升降装置分为电驱动和液压驱动2种,电驱动升降装置故障率较高,应用较少;液压驱动升降装置稳定性高,应用较广泛。
4) eccentric roller jacking device
偏心起升滚轮装置
6) griffe lift eccentric
刀箱升降偏心轮
补充资料：在AutoCAD中偏心圆锥与偏心圆台实体的画法
现在要画一个偏心圆锥,底面在WCS的XY平面上,圆心(0,0,0),半径100,顶点(300,0,400)在ZX平面上.
1)连接PA,PB. A(-100,0,0) B(100,0,0)
图1
在当前坐标下:
2)延长PA到C,使PA=CA;延长PB到D,使PB=DB;
3)连接CD;
4)以CD为直径画圆;
5)用XLINE命令中的二等分选项作角CPD的角平分线PO,交CD于O;
6)过O作CD的垂线,交圆于E,F;
图2
7)用三点UCS命令,取三点为:O,P,C;
8)过点O作PO的垂线GO,交PC于G;
图3
9)再次用三点UCS命令,取三点为O,F,G;
10)现在就可以画椭圆锥了!
cone-e-c-捕捉O点-捕捉F点-捕捉G点-a-捕捉P点;
图4
11)回到WCS,剖切椭圆锥
SL-选择椭圆锥-回车-XY-回车-捕捉P点.
12)删除辅助线条.
图5
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条