Test device in oil blanket life -span under test dusty environment

The utility model discloses a test device in oil blanket life -span under test dusty environment through install the ring flange protection casing on the hubcap additional behind the derailleur, makes the derailleur rear end produce a relatively independent airtight cavity to can be to wherein adding sand, dust, mud. Install simultaneously the bolt that can produce the air and mix on the ring flange additional, the dust make the cavity when the operation in floats at random, and the no?powder environment makes oil blanket in the working chamber come the outside use operating mode of oil blanket under the simulate reality environment. 本实用新型公开了种测试粉尘环境下油封寿命的试验装置，通过在变速器后轴端盖上加装法兰盘防护罩，使变速器后端产生个相对独立的密闭腔体，并可以向其中加入沙子、灰尘、泥浆。同时在法兰盘上加装能产生空气搅动的螺栓，在运转时使腔体内的粉尘随机漂浮，产生粉尘环境，使工作腔内的油封来模拟现实环境下油封外部的使用工况。