截齿/截齿轮

截齿，又称截齿轮或切割截齿，是安装在挖掘机械的挖掘链或旋转截齿轮上的硬化可更换部件。它们是主要的接触点，通过机械力穿透、切割和破碎土壤、岩石、煤炭或沥青等材料。设计用于高耐磨性和抗冲击强度，具有各种形状（锥形、径向、尖头）和安装系统（螺纹式、块式、快换式），以针对特定材料和操作条件优化性能。

截齿/截齿轮的工作原理基于集中力的施加。当挖掘链或截齿轮旋转或移动时，截齿利用其硬化尖端穿透材料表面。来自机器的机械能通过截齿结构传递，产生应力集中，从而使材料断裂。其几何形状有效引导切割力，同时最小化阻力，许多设计包括自锐特性，磨损优先发生在某些表面以保持切割效率。

Cutter teeth/wheels operate on the principle of concentrated force application. As the digging chain or cutter wheel rotates or moves, the teeth penetrate the material surface using their hardened tips. The mechanical energy from the machine is transferred through the tooth structure, creating stress concentrations that fracture the material. Their geometry directs cutting forces efficiently while minimizing drag, and many designs include self-sharpening features where wear occurs preferentially on certain surfaces to maintain cutting effectiveness.