法国Potain系列塔吊在香港称为“保定”系列塔吊,由香港敏达公司经销,是香港建筑业使用最多的一种高层建筑用的塔吊,有“秤王”之称(香港称塔吊为“天秤”)。目前国内也已经引进,本文仅对使用最广泛的Potain-H20/14C型塔机的提升机构电气传动作一介绍与分析。一、提升机构 Potain-H20/14C型塔机为自升上旋式,当臂长50m时两索提升能力为2～6t。其提升绞车的结构如图1所示。两个独立的带有刹闸的三相异步绕线式电机PV与GV通过一个正齿轮耦合起来,低速电机PV轴 France Potain series tower cranes in Hong Kong known as the “Baoding” series of cranes, distributed by the company in Hong Kong’s Mita, Hong Kong construction industry is the most used one for high-rise tower crane, the “scale Wang,” said "). At present, China has also been introduced, this article only on the most widely used Potain-H20 / 14C tower crane lifting mechanism electric drive for an introduction and analysis. First, the lifting mechanism Potain-H20 / 14C tower crane for the self-elevating spin-on, when the arm length 50m, two cable lift capacity of 2 ~ 6t. Its lifting winch structure shown in Figure 1. Two separate three-phase asynchronous windings with brake brake PV and GV through a spur gear coupled, low-speed motor PV axis