针对山前构造的地层岩性特征，从复合片、刀翼形状、齿型、切削齿力平衡等方面设计和改进了PD C钻头。
Based on the formation lithology characteristics, the PDC bit was optimized from such aspects as the composite block, blade geometry, cutter model, and cutter mechanics balance, etc.
通过建立机构的静力平衡方程，分析了切削加工载荷在各条驱动腿之间的分配情况。
The distribution of cutting force between driving legs is analysised by establishing of static force equilibrium equations.
平衡式液压缸与精密液压调整阀确保达到最佳切削状态，使锯条不易拉齿损坏。
Balanced type hydraulic cylinder and precision hydraulic adjusting valve guarantee optimal cutting performance and enable saw blade not to break down.
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