论文部分内容阅读
北京燕工牌QT80A型自升上旋转式塔机,是我国目前定点生产的一种新型垂直提升运输设备。大中型建筑企业购置比较多,使用广泛。为便于电气维修人员,特别是距首都较远的企业维修人员能在生产中及时排除电气故障。本文就该机电气原理作一简介,以供参考。一、主电路(图1) 1.卷扬系统装有涡流制动器的绕线式电机GD,型号为YZR_2T-52-8/30kW。采用等式电阻,由正、反转接触器GZC、GFC变换电机运转方向,其制动采用液压推杆式制动器进行工作,该电源由GYC单独供给。吊钩的慢
Beijing Yangong brand QT80A self-elevating rotary tower crane is a new type of vertical lifting and transportation equipment that is currently produced in China. Large and medium-sized construction companies have more purchases and are widely used. In order to facilitate electrical maintenance personnel, especially those who are far away from the capital, maintenance personnel can eliminate electrical faults in production. This article gives an introduction to the electrical principle of this machine for reference. First, the main circuit (Figure 1) 1. Winding system is equipped with eddy current brake winding motor GD, the model is YZR_2T-52-8/30kW. Using equation resistance, the forward and reverse contactors GZC and GFC convert the running direction of the motor. The brake adopts the hydraulic push rod type brake. The power is supplied by GYC alone. Slow hook