High-strength spacer bush for mechanical equipment

The utility model provides a high-strength spacer bush for mechanical equipment. The high-strength spacer bush comprises an outer sleeve body, an inner sleeve body movably connected with the outer sleeve body and fastening rings movably connected with the two sides of the outer sleeve body in the axis direction. Ribs are symmetrically arranged on the outer side surface of the inner sleeve body in the axis direction from the center to the two sides, embedding grooves corresponding to the ribs are formed in the inner surface of the outer sleeve body, an annular groove is formed in the center radial portion of the inner surface of the outer sleeve body, and a plurality of first oil holes are formed in the center radial portion of the outer surface of the outer sleeve body at intervals. The first oil hole penetrates through the outer sleeve body wall and communicates with the annular groove; a plurality of second oil holes are distributed in the positions, corresponding to the annular groove, of the inner sleeve