The invention discloses a stern shaft sealing device which comprises a stern tube and a stern shaft coaxially arranged with the stern tube, a shaft sleeve is fixedly arranged on the outer side of the stern shaft in a sleeving mode, a hoop is fixedly connected to the front end of the shaft sleeve, the stern shaft is sleeved with the hoop, the shaft sleeve is sleeved with a sealing seat, the front end of the sealing seat is fixedly connected with a sealing cover, and the sealing cover is fixedly connected with the sealing seat. And the sealing cover is sleeved on the shaft sleeve. The first sealing ring and the outer side of the shaft sleeve are sealed, the third sealing ring and the inner wall of the sealing cover are sealed, meanwhile, the second sealing ring seals the annular space between the first sealing ring and the third sealing ring, and the comprehensive sealing effect is achieved; and an elastic extrusion assembly is arranged, the third sealing ring extrudes the third sealing ring through a spring, so that the extrusion effect of the spring on the third sealing ring is compensated, the sealing effect of the third sealing ring cannot be reduced along with axial displacement of the tail shaft, and the sealing performance of the tail shaft sealing device is guaranteed.

    本发明公开了一种艉轴密封装置,包括艉管和与艉管同轴设置的艉轴,所述艉轴外侧固定套设有轴套,所述轴套的前端固定连接有卡箍,所述卡箍套在艉轴上,所述轴套上套设有密封座,所述密封座的前端固定连接有密封盖,所述密封盖套在轴套上。本发明通过设置第一密封圈和轴套外侧密封,设置第三密封圈和密封盖内壁密封,同时第二密封圈封闭第一密封圈和第三密封圈之间的环形空间,达到全面密封的效果;并且通过设置弹性挤压组件,第三密封圈通过弹簧对第三密封圈进行挤压,使得弹簧对第三密封圈的挤压作用得到补偿,从而使第三密封圈的密封效果不会随着艉轴发生轴向位移而下降,保证了艉轴密封装置的密封性能。


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    Titel :

    Tail shaft sealing device


    Weitere Titelangaben:

    一种艉轴密封装置


    Beteiligte:
    NI ZHIQI (Autor:in)

    Erscheinungsdatum :

    2022-03-04


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    F16J Kolben , PISTONS / B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING



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