• Home | Contact us
    Contact us
    Wuxi Hitech Machinery Co.,Ltd.
    Contact:Mr. Hu
    Tel: (86)510-83211158 
    Fax: (86)510-88585884
    E-mail: wuxihitech@126.com
    Web: www.markwritesthis.com
    Registered Address: Gongjihao,Hufu Town,Yixing,Jiangsu Province,China
    Production Address: No.9,Jingtian Road,Hu Dai Town,Binhu District,Wuxi
    Home >>News
    The function and structure of the propeller

    First,the function of the propeller

    The function of the propeller is to turn the power of the ship's main engine into the power of the ship's forward (or retreat).

    The various mechanisms that propel the ship forward are collectively referred to as ship propellers. The ship propeller has propeller, water jet propeller, rotary propeller, round wheel and Z-shaped propeller. Among them, the propeller structure is simple, light weight, high efficiency, reliable, is currently the most widely used ship propulsion.

    A propeller is a reaction-type propulsion device in which the propeller rotates backwards (or forwards) and thrusts against the water (ie, backward) thrust when the propeller rotates.

    Second,the structure of the propeller

    The propeller consists of a blade and a hub, as shown in Figure 8-2. A paddle is a component of a propeller that produces thrust, usually with three and four lobes. The hub is the connecting member of the paddle and the paddle shaft. Some propellers are also equipped with a shroud (streamlined paddle), so that the propeller tail linear smooth, reduce the propeller work resistance.

    1.foliage and leaf back
    The side of the blade seen from the stern to the bow is called the leaf and the other side is called the leaf.

    2.led edge and with the side
    Propeller forward when the blade first into the water side called the edge, after the side of the water called the side.

    3.leaves and leaves slightly
    The blade is connected to the hub at the blade root, and the end of the hub is called the leaf tip. Usually thick roots and thinner leaves.

    4.the right propeller and the left propeller
    The propeller is spinning the clockwise propeller called the right propeller, and the forward rotation is counterclockwise. The propeller is called the left propeller.

    5.external rotation and internal rotation
    For the paddle boat, the left-hander left-handed, right-hander called outside the spin; In order to avoid entrainment of floating objects and damage to the blade, the ship generally use more external propeller.

    Third,the common defects of the propeller

    Common defects in the propeller are corrosion, wear, cracks, bending and breaking.

    成 人色 网 站 欧美大片在线观看 国产精品九九在线播放 在线欧美 免费AV网站 超级乱婬伦丝袜高跟鞋漫画 成人午夜亚洲精品无码网站黄
    Strict control, to ensure that technical performance and manufacturing quality,Passed the ISO9000 quality system certification
    You have any comments, suggestions and suggestions on the product or service Please contact us in time
    Service Hotline
    Sound sales system, and improve after-sales service Hotline (86)510-83211158
    Official Mobile
    Copyright @ 2017 Wuxi Hitech Machinery Co.,Ltd. 蘇ICP備17001182號-1