Working principle of a ship anchor
Release time:
2019-05-27
From top to bottom, the structure consists of an anchor shackle, bolts, an anchor rod, an anchor stock, and an anchor arm. The symmetrical parts on either side are called anchor claws. The anchor claws are the most critical component for the anchor to grip into the seabed. After a ship drops anchor, the anchor sinks to the seabed under the pull of the anchor chain. At the seabed, thanks to the action of the anchor rod, the plane where the anchor arm is located becomes perpendicular to the seabed, at which point the anchor claws come into contact with the seabed. Qingdao Tonghang Shipbuilding has been professionally engaged in the R&D and production of ship anchors—including Hall anchors, S-bend anchors, naval anchors, high-holdforce anchors, and steel floating buoys—for 18 years. Typically, the length of a ship’s anchor chain exceeds the water depth; therefore, the portion of the anchor chain lying on the seabed remains flat. When the ship experiences disturbances—such as being hit by a head sea—the anchor...
From top to bottom, the structure consists of an anchor shackle, a bolt, an anchor rod, an anchor stock, and an anchor arm. The symmetrical parts on either side are called anchor claws. The anchor claws are the most critical part for the anchor to grip into the seabed. After the ship drops anchor, the anchor sinks to the bottom of the water under the pull of the anchor chain. At the seabed, thanks to the action of the anchor rod, the plane where the anchor arm is located becomes perpendicular to the seabed, at which point the anchor claws come into contact with the seabed.
The length of a ship’s anchor chain is often greater than the water depth; therefore, the portion of the anchor chain lying on the seabed remains flat. When the ship experiences disturbances—such as encountering head seas—the anchor chain gets pulled, and the anchor resting on the seabed at the chain’s attachment point is subjected to a horizontal force. At the same time, the anchor’s own weight acts upon the point where its flukes make contact with the seabed (point C in the diagram). The combined effect of these two forces causes the anchor to move diagonally downward—a process known as the anchor’s penetration into the seabed. Once the anchor has been driven into the seabed, it can provide the ship with the necessary mooring capability. It’s important to note that this mooring capability cannot be achieved by the anchor alone; rather, the long anchor chain itself also plays a crucial role.
Related News
Message inquiry
If you have any questions, feel free to contact us. Please leave your contact information, and we’ll get back to you as soon as possible!
CONTACT US
Phone:+86-575-8350779983506552
Mobile phone:137 0680 8600Manager Tang
Email:zjsnac@163.comtbm6552@zjsnac.com
Business Address: No. 16, Yulong Road, Industrial Functional Zone, Huangze Town, Shengzhou City, Zhejiang Province
Navigation address: Shuangniao Group, Industrial Functional Zone, Huangze Town, Shengzhou City, Zhejiang Province