The invention discloses a tandem axial flow type water jet propulsion pump, and relates to the technical field of water jet propulsion, the tandem axial flow type water jet propulsion pump comprises a pump body, a partition plate is fixedly mounted in the pump body, the partition plate divides the interior of the pump body into a first mounting area and a second mounting area, and an end cover is detachably mounted at the top of the pump body through screws; a motor is fixedly mounted in a first mounting area in the pump body, a rotating shaft is arranged in a second mounting area in the pump body, a through hole is formed in the middle of the partition plate, and a mechanical seal is fixedly mounted at the bottom of the partition plate. And the top end of the rotating shaft penetrates through the mechanical seal and the through hole, then enters the first mounting area and is fixedly connected with an output shaft of the motor. By means of the mechanical seal, the sealing effect of the circumferential gap between the rotating shaft and the through hole can be effectively improved, and meanwhile, leakage at the circumferential gap between the rotating shaft and the through hole is avoided in the mode of increasing the air pressure in the first mounting area in the pump body.

    本发明公开了一种串列轴流式喷水推进泵,涉及喷水推进技术领域,包括泵体,所述泵体的内部固定安装有隔板,所述隔板将泵体的内部分隔为第一安装区域与第二安装区域,所述泵体的顶部通过螺丝可拆卸式安装有端盖,所述泵体内部的第一安装区域内固定安装有电机,所述泵体内部的第二安装区域内设置有转轴,所述隔板的中部开设有通孔,所述隔板的底部固定安装有机械密封,所述转轴的顶端穿过机械密封、通孔后进入第一安装区域的内部并与电机的输出轴固定连接。本发明通过设置的机械密封,能够有效提高转轴与通孔之间圆周间隙处的密封效果,同时,配备了以增加泵体内部第一安装区域内气压的方式,来避免转轴与通孔之间的圆周间隙处发生渗漏。


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    Title :

    Tandem axial flow type water jet propulsion pump


    Additional title:

    一种串列轴流式喷水推进泵


    Contributors:
    LI CHEN (author) / ZHAO FENG (author)

    Publication date :

    2021-04-09


    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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