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电动挖掘机是露天矿山生产的主体设备,其工作装置铲斗中斗齿与斗唇的装配牢固与否直接关系到使用过程中的安全与效率。根据设计和使用要求:斗齿与斗唇装配后,斗齿的内腔与斗唇的外轮廓接触面应达到75%以上。但是在电动挖掘机投入使用的前期,斗齿与斗唇都是原装新件,装配后都很牢固。随着使用时间的延长,斗齿磨损,经过几次更换新配件后使斗唇产生轻微磨损,此时暂不会被引起注意。再继续经过一段时间使用后斗唇磨损加重,几何尺寸变小,即使安装了新斗齿也会产生松动。特别是当换用了非原电动挖掘机制造厂生产的斗齿配件后,由于多种原因,斗齿的内腔不能完
Electric excavators are the main equipment of open-pit mines. The assembly of bucket teeth and bucket lip in the working device bucket is directly related to the safety and efficiency in use. According to the requirements of design and use, after the teeth and lip are assembled, the contact surface between the inner cavity of the tooth and the outer contour of the lip should reach more than 75%. However, electric excavator put into use in the early stage, fighting teeth and bucket lips are original new pieces, are very solid after assembly. With the extension of the use of time, tooth wear, after several new parts to replace the lips caused a slight wear and tear, at this time will not be for the time being attention. Then continue to wear after a period of bucket lip wear increased geometry smaller, even if the new tooth will be installed loose. Especially when the switch tooth bucket accessories manufactured by non-original electric excavator manufacturer, for a variety of reasons, the tooth cavity can not be completed