The invention belongs to the technical field of ship tail shafts, and relates to a ship tail shaft water lubrication sealing structure. A tail shaft front bearing (2) and a tail shaft rear bearing (3) are arranged on a tail shaft (1), a sealing sleeve (7) is sleeved on an outer ring of the tail shaft (1), a water inlet (8) is arranged on the sealing sleeve (7), one end of the sealing sleeve (7) is connected with a front connecting seat (4), the other end of the sealing sleeve (7) is connected between rear connecting seats (5), a front sealing piece (6) is sleeved on the tail shaft (1) on the outer side of the tail shaft front bearing (2), and a rear sealing piece (9) is sleeved on the tail shaft (1) on the outer side of the tail shaft rear bearing (3). The ship stern shaft water lubrication sealing structure is simple in structure, stern shaft cooling and stern shaft bearing water lubrication can be effectively achieved, meanwhile, reliable sealing of the front portion and the rear portion of the stern shaft is achieved, cooling water internal circulation is achieved, external river water containing silt is not used any more, and the service life of a whole shaft system is prolonged.

    本发明属于船舶艉轴技术领域的船舶艉轴水润滑密封结构。艉轴(1)上设置艉轴前轴承(2)和艉轴后轴承(3),艉轴(1)外圈套装密封套管(7),密封套管(7)上设置进水口(8),密封套管(7)一端连接前连接座(4),密封套管(7)另一端连接后连接座(5)之间,艉轴前轴承(2)外侧的艉轴(1)上套装前密封件(6),艉轴后轴承(3)外侧的艉轴(1)上套装后密封件(9)。本发明所述的船舶艉轴水润滑密封结构,结构简单,能够有效实现艉轴冷却、艉轴轴承水润滑,同时实现艉轴的前部和后部位置可靠密封,实现冷却水内循环,不再利用外部含有泥沙的河水,提高整个轴系使用寿命。


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    Title :

    Water-lubricated sealing structure for ship tail shaft


    Additional title:

    一种船舶艉轴水润滑密封结构


    Contributors:

    Publication date :

    2024-11-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING



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