手拉葫芦 meaning in English
chain blocks
hand pulling block
Examples
- Safety rules for manually operated chain hoists
手拉葫芦.安全规则 - Manual lever block
手拉葫芦 - This paper presents the principles of the brakes on chain and lever blocks , analyzes the forces , and offers the design method
摘要介绍手拉葫芦与手扳葫芦制动器的工作原理，分析了制动器的受力情况，介绍了制动机构设计的方法和注意事项。 - The hoisting of the girders was achieved by the combination of a hoisting machine with scaffolding . before the variant arch was moved into its place , scaffolds were set up under the place where the arch would be , and a clearance of 0
变异拱就位时，先在该处下方搭好脚手架，并把脚手架断开留出0 . 8m间隙，利用脚手架搭设龙门架，用手拉葫芦把梁提升到位。 - It was essential that the lifted girder could be moved by any angle . a hand drawn chain hoist was used instead of a steel wire rope to enable the girder to be moved freelyby any angle . the suspension centers should be kept far apart but to the front as much as possible
起吊后的钢梁灵活、方便的角度调整是关键，吊装时用有足够行程的手拉葫芦代替钢丝绳，以便进行角度调整，要求吊点相距要大一些，而且吊点尽量靠前端。