蟹爪插入料堆时的内角和外角

In. and ex. angle as crab claw cutting into material

讨论了蟹爪式装载机蟹爪插入料堆的内用和外角的定义、计算方法以及内外角对蟹爪工作机构插入性能的影响，给出了内角、外角和插入深度三者之间合理的匹配关系数，并首次提出了蟹爪反播的问题。

The thesis following studthe the terms of interior and exterior angles of loader crab-arms into material pile and the methodology for caltulation. It also deals with the problem of the effect caused by the variation of interior and extorior angles on crab-arms working function. As aresult of the study,a toble has been worked out to demonstrate the rational matching values for the three factors,i. e. interior angle,exterior angle and crab-arms inserting depth. The thesis puts forward for the first time the theory of crab-arms reverse insertion.