In this paper, based on the plentiful combination experiments of the reticular cutting with the teeth of single cone bit on the rock, the teeth's instantaneous cutting forces were recorded. After processing the experimental rock with measurement system of the bottom pattern, the rock fragmentation average depth, the area and the volume were obtained. According to the cutting force and the rock fragmentation volume, it can be studied on the relations between the two targets and every kind of experiment parameters after calculating the breaking volume per unit length and the specific volumetric fracture work of rock. Based on the obtained he effect of parameters on rock fragmentation such as the tooth shape, the rock character, the cutting depth, the grooving spacing and overlapping angle, the best cutting parameters of different teeth can be found and the tooth shape can be judged of. According to the experiment results, in this article the instructive opinion and suggestion is proposed about the cutting structure on single cone bit, which provides the reliable basis to the reasonable use of drill bit to enhancing the drill speed.
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