The escalator step chain roller waterproof and dustproof structure comprises an inner sealing structure and an outer sealing structure which are arranged on the two sides of a roller bearing. The outer sealing structure comprises a sealing cover arranged on the step chain shaft in a sleeving mode. The sealing cover comprises a cover body and a supporting framework A arranged in the cover body; the cover body comprises a radial plate, a cover ring and an elastic lip A; the cover ring is matched with an A annular assembling groove in the inner ring face of the roller wheel core to achieve fixing. The front end of the elastic lip A is in interference fit with the step chain shaft; and the space among the roller bearing, the sealing cover and the step chain shaft is filled with grease. According to the waterproof and dustproof structure for the stair chain roller of the escalator, the sealing cover with a specific structure is arranged on the outer side of the roller bearing and is matched with the stair chain shaft and the roller core to form an outer sealing structure, so that the sealing effect can be ensured, and the outer end part of the stair chain shaft cannot be blocked; therefore, the step chain can be subjected to oil dripping lubrication treatment by forming the lubricating oil channel in the step chain shaft.

    本发明的自动扶梯梯级链滚轮防水防尘结构,包括设于滚轮轴承两侧的内密封结构和外密封结构;所述外密封结构包括套设于梯级链轴上的密封盖;所述密封盖包括盖体和设于盖体内部的A支撑骨架;所述盖体包括辐板、盖圈和A弹性唇口;所述盖圈与滚轮轮芯内环面上的A环形装配槽配合实现固定;所述A弹性唇口的前端与梯级链轴过盈配合;所述滚轮轴承、密封盖和梯级链轴之间的空间填充有油脂。本发明的自动扶梯梯级链滚轮防水防尘结构通过在滚轮轴承的外侧设置具有特定构造的密封盖,与梯级链轴和滚轮轮芯配合形成外密封结构,既能保证密封效果又不会将梯级链轴的外端部挡住,从而可以通过在梯级链轴上开设润滑油通道对梯级链条进行滴油润滑处理。


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    Title :

    Escalator step chain roller waterproof and dustproof structure


    Additional title:

    自动扶梯梯级链滚轮防水防尘结构


    Contributors:
    YE JITENG (author) / DAI JIANXING (author)

    Publication date :

    2023-10-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66B Aufzüge , ELEVATORS / F16C SHAFTS , Wellen / F16H Getriebe , GEARING / F16J Kolben , PISTONS



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