Cantilever roller head structure

The utility model relates to a cantilever roller head structure, include: alloy roller head (2), hollow shaft (1), inlet tube (3) and end stifled device (4), end stifled device (4) are equipped with hollow structure including supporting shaft extension (401), jackshaft (402) and keeping off shoulder (403) at the center of supporting shaft extension (401), and inlet tube (3) tip stretches into hollow structure and supports shaft extension (401) overlap joint, is equipped with the water return channel hole on support shaft extension (401) of hollow structure periphery, jackshaft (402) are connected with the terminal inner chamber of hollow shaft (1), keep off shoulder (403) and hollow shaft (1) tip laminating welding, and keep off shoulder (403) and arrange the terminal inner chamber of alloy roller head (2) in. The utility model discloses the stifled device of end has realized that the tip of inlet tube supports the location, with tightness and the fastness that the threaded connection and the welded fastening