by crampon, lifting beam and pulley block as well as hoisting and mounting the bridge crane in parts, ensures safety and economy for the construction.
采用锚钩吊梁加滑轮组的方法,分部件吊装桥机,可保障施工安全,节省费用。
steel column is fixed to special jig, slipping below the installation position by chain block and lifting by pulley block and windlass.
将钢骨柱固定在专用胎架上,通过倒链滑移至安装点下方后,采用滑轮组和卷扬机进行提升就位。
equivalent triangle structure is constructed with hinged bar elements to precisely simulate the effect of wire rope pulley block in the finite element analysis of structure of construction machines.
在工程机械结构有限元分析中,采用铰接桿单元构造等效三角结构,準确的模拟钢绳滑轮组的作用。
it can lift weight through pulley block and lifting hook installed on davit.
经过吊臂上装的滑轮组和吊钩,可吊重;
under arraying rope pillar function, two pieces of pulley block circles pillar to do left, right nimble swinging, which cause rope winds in regular arrangement.
绳索在排绳柱作用下,两个滑轮组绕柱子左、右灵活摆动,使绳索在捲绳轴形成有规则的排列。
the mentioned method is applied to design of pulley block compensation in luffing mechan ism and the results show that the method is feasible and effective.
在滑轮组补偿变幅机构稳健优化设计中加以运用,结果表明该方法是有效的和可行的。
fig 2. a double-line, straight pull with a typical winch and pulley arrangement. adding a pulley block to your winch doubles its capabilities.
双线,使用一个滑轮挂钩作支点,可放大绞盘拉力,但速度则慢了一半。
the skillful design of the pulley block makes the largest door leaf able to bear the 400kg dead load of the leaf.