supports the countershaft assembly, isolates transmission parts from contaminants, contains lubricants, and dampens vibrations. It outlines its composition, including the box body, bearing seats, lubrication ports, sealing flanges, inspection covers, ventilation holes, and gear clearance adjustment features, along with their structural characteristics. The casting process of the box body is elaborated, covering material selection (gray cast iron), pattern making, molding, melting, pouring, heat treatment, and inspection. It also describes the machining process (rough/finish machining, surface treatment) and assembly steps. Additionally, quality control measures are specified, such as material validation, dimensional accuracy checks, structural integrity testing (pressure testing, non-destructive testing), functional testing, and final inspection. These processes ensure the countershaft box provides reliable support and protection for the countershaft assembly, contributing to the cone crusher’s stable operation under heavy loads.
This paper details the countershaft of cone crushers, a key transmission component that transfers power from the input pulley to the eccentric shaft via a bevel gear, ensuring stable power transmission. It outlines its composition, including the countershaft body, bevel gear, pulley hub, bearing seats, keyways, and lubrication holes, along with their structural features. The casting process for gear and hub components (material selection, pattern making, molding, melting, heat treatment, inspection), machining processes for the countershaft body (forging, rough/finish machining, heat treatment), gear machining (cutting, heat treatment, grinding), and assembly steps are elaborated. Additionally, quality control measures covering material validation, dimensional checks, surface/structural integrity inspection, functional testing, and lubrication verification are specified. The countershaft’s precise manufacturing and strict quality control are critical for reliable operation of cone crushers under heavy loads