论文部分内容阅读
几年来,我矿1m~3挖掘机折断中央枢轴与支架事故较多,平均一年在三次以上,尤其是枢轴支架断裂次数更多。经多次研究,找出原因及改进措施,效果明显,介绍如下: 1.中央枢轴支架断裂原因断裂的原因有:设备老化,工作环境恶劣、条件差,场地不平整,不合理的横向挖掘、爆破与操作,平衡重小等,其中最主要因素是平衡滚轮(即,勾滚)失灵。近几年,我矿单台产量在40万吨以上,有的单台超过60万吨,台班挖掘在700次以上。由于平台运转次数的增加,勾滚与大齿圈滚道的磨损也就
In recent years, mine mine 1m ~ 3 excavator off the central pivot and stent more accidents, an average of more than three times a year, in particular, more times the number of pivot bracket fracture. After many studies, to find out the reasons and improvement measures, the effect is obvious, the introduction is as follows: 1. Central pivot bracket rupture causes of fracture: aging equipment, poor working conditions, poor conditions, uneven site, unreasonable horizontal excavation , Blasting and operation, a small balance of weight, the most important factor is the balance wheel (ie, hook roll) failure. In recent years, I mine a single output of more than 400,000 tons, and some more than 600,000 tons alone, Taiwan mining more than 700 times. Due to the increase of the number of platform operation, the hook roller and gear ring wear too