Machine head shell for crusher

The utility model relates to the technical field of crushers, in particular to a head shell for a crusher, which comprises a sealing sleeve and a body with a funnel-shaped structure, the body is mounted at the lower end of the shell of the crusher, and the body comprises an upper port and a lower port; the sealing sleeve is of a circular-tube-shaped structure, the outer ring face of the sealing sleeve is in interference fit with the lower end opening of the body, and a circular-ring-shaped limiting ring used for preventing the sealing sleeve from completely sinking into the lower end opening integrally protrudes out of the lower end of the sealing sleeve in the radial direction. The device is simple in structure and reasonable in layout; due to the fact that the sealing sleeve is arrangedin the lower end opening of the body in the interference fit mode, on one hand, the sealing performance of the assembled drill rod is improved, on the other hand, the situation that the abrasion degree of the inner wall of th