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    使用挖掘机加长臂可以解决的问题


        挖掘机是采用了整体式弯动臂结构和单直斗杆?#38382;?#32452;合而成。由于受其整体式动臂长度和标准斗杆式?#38382;?#30340;局限,其实挖掘深度,如果动臂长度为5.3m,斗杆长度为2m,其挖掘深度只能达到4.3m左右,为了增加挖掘深度,对标准型斗杆长度进行?#23454;?#22686;长。
     
      由于考虑到尽可能减少改制成本以及今后能适应不同挖掘深度和效率的需求,便于随时更换的因素,故改制成的臂架结构在原来2m的标准型斗杆的前端加上一节可拆卸式长度为0.9m的短臂架,另外再配上一组四连杆连接机构。这样,当工程挖掘深度在4.3~5.2m时,可用挖掘机加长臂,把短臂架和连杆机构经组装即可施工,平常情况下仍可恢复到原先的斗杆标准型长度的挖掘范围。加长臂使用时,其反铲斗容量也相应缩小。挖掘机加长臂前端的连杆机构基本未动 , 未加长前的连杆 , 移至加长臂的前端 , 然后运用平行四边形对边相等原则 ,再增加一根加长边杆 ,把油缸活塞杆和前端边杆联接。

    使用挖掘机加长臂可以解决的问题


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