Speed reducer oil seal installation tool

The utility model relates to the technical field of oil seal installation and processing, and discloses a speed reducer oil seal installation tool which comprises an installation base, an oil seal body is movably connected to the outer surface of the top end of the installation base, a fixing ring is movably connected to the outer surface of the installation base, and a supporting rod is fixedly connected to the outer surface of the top end of the fixing ring. A limiting block is fixedly connected to the outer surface of one side of each supporting rod, a sliding block is movably connected to the interior of each limiting block, a buckle is movably connected to the outer surface of one side of each sliding block, the outer surface of the mounting base is evenly coated with the fixing rings, and the supporting rods are evenly distributed along the fixing rings; the limiting block and the sliding block are connected in a clamped mode through a buckle, the buckle is arranged in the sliding block and the limiting