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一、基本要求斗轮挖掘机的铲斗在轮圈回转一周的过程中,要完成切割、装载和排空物料三项作业。切割时要求斗齿能迅速切入物料。为此铲斗必须具有足够的强度和刚度,以便承受物料的反作用力。装载时要求物料能较通畅地流入铲斗(这样可减少切割阻力),同时在物料充填铲斗时,既要填满铲斗空间,又不能产生过大的挤压力,否则由于挤压力的增大,会使铲斗壁与物料的吸附力增大(在一定吸附系数下,吸附力与两物体之间的正压力成正比),造成排料时物料排不净或撒料等情况。
First, the basic requirements Bucket wheel excavator bucket in the rim in the process of turning a round, to complete the cutting, loading and emptying materials three operations. When cutting, the teeth are required to quickly cut into the material. For this reason, the bucket must have sufficient strength and rigidity to withstand the reaction force of the material. When loading, it is required that the material can flow into the bucket more smoothly (this can reduce the cutting resistance), and at the same time when the material is filling the bucket, it must not only fill the bucket space, but also cannot generate excessive squeezing force. Otherwise, due to the squeezing force The increase of the bucket wall will increase the adsorption force of the bucket wall and the material (under a certain adsorption coefficient, the adsorption force is proportional to the positive pressure between the two objects), causing the material to be discharged when the material is drained or the material is discharged. .