SEALING DEVICE AND GREASE ADHERENCE METHOD

• Main Authors: TARUKAWA YUICHI, SEKI MASAHIRO, SUGAWARA SHINTARO
• Format: Patent
• Language: Chinese; English
• Published: 07.05.2021
• Subjects: BEARINGS; BLASTING; CYLINDERS; ELEMENTS OR CRANKSHAFT MECHANISMS; ENGINEERING ELEMENTS AND UNITS; FLEXIBLE SHAFTS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; PISTONS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; SEALINGS; SHAFTS; THERMAL INSULATION IN GENERAL; WEAPONS

A sealing device according to the present invention is disposed between relatively rotating inner and outer members, and comprises: a cylindrical portion attached to the outer member; a first sealing member comprising an annular portion that expands radially inward from the cylindrical portion toward the inner member; a sleeve attached to the inner member; and a second sealing member that comprises a flange that expands radially inward from the sleeve, the flange facing the annular portion of the first sealing member. The first sealing member comprises at least three axial lips, formed from an elastic material, that extend from the annular portion toward the flange of the second sealing member. The interference of the axial lips disposed radially outward is larger than the interference of the axial lips disposed radially inward. 配置于相对旋转的内侧构件与外侧构件之间的密封装置包括：第一密封构件，具有安装于外侧构件的圆筒部分和从圆筒部分朝向内侧构件且向径向内侧扩展的环状部分；和第二密封构件，具有安装于内侧构件的套筒和从套筒向径向外侧扩展的凸缘，凸缘与第一密封构件的环状部分相对。第一密封构件具有从环状部分朝向第二密封构件的凸缘延伸的、由弹性材料形成的至少三个轴向唇。配置于径向外侧的轴向唇的过