一种螺杆轴密封结构

Screw shaft sealing structure

  • Inventors: WANG MIN
  • Assignees: 王敏
  • Publication Date: September 24, 2014
  • Publication Number: CN-203847700-U

Abstract

本实用新型涉及一种螺杆轴密封结构,安装于工作室的外侧,用于密封螺杆轴,螺杆轴贯穿于工作室的腔内来输送物料,包括从内到外围设于螺杆轴外侧表面的壳体、压盖,壳体与螺杆轴之间设有填充填料的密封腔,密封腔的外端与压盖连接,密封腔的中部设有连接氮气反吹装置的环孔,与螺杆轴接触的压盖内表面开设有螺旋状的凹槽。本实用新型的有益效果是:工作稳定,运行周期长,避免了短期内反复维修,提高了经济效益。
The utility model relates to a screw shaft sealing structure which is mounted on the outer side of a work room and is used for sealing a screw shaft. The screw shaft penetrates into a cavity of the work room to convey materials, the screw shaft sealing structure comprises a shell and a gland, the shell and the gland are arranged on the surface of the outer side of the screw shaft in a surrounding mode from inside to outside, a sealing cavity filled with padding is formed between the shell and the screw shaft, the outer end of the sealing cavity is connected with the gland, an annular hole connected with a nitrogen reverse blowing device is formed in the middle of the sealing cavity, and the inner surface, in contact with the screw shaft, of the gland is provided with a spiral groove. The screw shaft sealing structure has the advantages that working is stable, an operation cycle is long, repeated maintenance in a short period is avoided, and economic benefits are improved.

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    Publication numberPublication dateAssigneeTitle
    CN-103994223-AAugust 20, 2014王敏Screw shaft sealing structure