煤场抓斗吊工作环境恶劣,负载变化大,正反向运转和制动频繁,因而故障率较高,电气部分一些弱点也暴露出来,经常造成“死吊”,影响生产。为此,我们对抓斗吊的电气部分作了如下几点改进。 1.加装滑触线清扫器 煤场粉尘很多,滑触线上常积聚粉尘,使集电施接触不良,造成电源断路或缺相。为此,在每 Due to the harsh working environment, heavy load changes, frequent forward and reverse rotation and frequent braking, the coal yard grab crane has a high failure rate and exposed some weaknesses in the electrical part, often causing “dead hanging” and affecting production. To this end, we grasping the electric part of the crane made the following improvements. 1. The installation of trolley line sweeper coal yard dust many, often touch the line accumulation of dust, poor collection contact facilities, resulting in power supply circuit or lack of phase. For that, at every