| 摘要 |
<p>A shaft sealing device whose parts can be produced and assembled on a material-by-material basis to enable cost of the parts to be reduced and in which the parts can be disassembled on a material-by-material basis to enable the materials to be reused. A shaft sealing device (1) is composed of a seal section (2), a reinforcement ring (5), and a seal sleeve (10). The seal section (2) is made from a rubber-like elastic material and has a fitting section (4) sealingly fittable on a hole forming surface of a housing (60); a fitting recess section (4B) formed in a region that is from a side surface on the opposite side of to-be-sealed fluid (L) of the fitting section (4) to the to-be-sealed fluid (L) side; an annular seal lip (3) provided on the inner periphery of the fitting section (4); and a seal surface (3A1) provided inside the seal lip (3). The reinforcement ring (5) has a reinforcement section (5) removably fitted in the fitting recess section (4B) of the fitting section (4) and a support section (5B) for supporting the back side of the seal lip (3). The seal sleeve is made from metal or resin and has a sliding seal surface (10D) capable of sliding while in intimate contact with the seal surface (3A1); a first stopper (10A) capable of engaging with the seal lip (3), at one end of the sliding seal surface (10D); a second stopper (10B) capable of engaging with the support section (5B), at the other end, which is on the opposite side of the one end, of the sliding seal surface (10D); and an intimate contact fitting surface (15) sealingly fitting on a rotating shaft (50).</p> |
