Cone Crusher locking nut

This paper provides a detailed introduction to the locking nut component of cone crushers. As an important fastening component, it is mainly used to secure key assemblies such as the main shaft, fixed cone liner, or adjustment ring. It can realize functions including secure fixation, load distribution, and maintaining the crushing gap in cooperation with the adjustment ring.​ Its composition and structure include the nut body, threaded bore, locking mechanism (such as locking holes, set screws, and tapered surfaces), flange or shoulder, and wrench flat faces, with each part having a specific design and function. In terms of casting process, large-sized locking nuts often use gray cast iron, ductile iron, or cast steel, going through steps such as material selection, pattern making, molding, melting and pouring, cooling and cleaning, and heat treatment.​ The machining and manufacturing process covers steps like rough machining, machining of locking features, finish machining, surface treatment, and assembly with locking components. Quality control includes measures such as material testing, dimensional accuracy checks, thread quality inspection, locking performance testing, and non-destructive testing, ensuring that the component has good wear resistance, anti-loosening performance, and structural rigidity in high-vibration environments, thus guaranteeing the stable operation of the crusher.