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How to know a boat anchor?

195 Published by admin 8月 07,2019

How to know a boat anchor?

Boat anchor is the main part of anchor equipment.They are iron harnesses attached to the ship by chains, and they steady the ship by dropping the anchor on the bottom of the water.

anchor equipment operation

In ancient times, a boat anchor was a large stone, or basket full of stones, called an anchorage.The rock was roped to the bottom and anchored by its weight.Later, there were wooden claw anchors, that is, wooden claws were attached to the sides of the stones to anchor the ship by weight and grip.There are records of metal anchors in southern China.Chinese ancient sailboats used four claw iron anchor, this kind of anchor performance is good, in the sampan and small boat is still used.

customized anchor

customized marine anchor

There are four main types of modern anchors made of cast or forged steel.

(1) Stock anchor: anchor claw and anchor stem is usually a whole, and there is a perpendicular to the plane of the anchor claw bar.There are more than two anchor claw, a single claw.When using a claw rodent into the soil is deeper, grasping force, but because of a crossbar, inconvenient collection, more used for small ships.The main types of anchor are navy anchor (figure 2), single claw anchor (figure 3), foshan anchor, Japanese anchor, etc.

(2) no rod anchor: anchor claw and bolt can be relatively rotating a certain Angle, no crossbar.When it is used, two anchor claws go into the soil at the same time, which is convenient for lifting anchor and collecting, and is most widely used.The typical stockless anchors are hall anchor (FIG. 1) and its improved type spelke anchor.

(3) big grasp anchor: boat anchor claw wide, can rotate a certain Angle, anchor head or anchor claw middle has a protruding rod Body, plays a stabilizing role.Due to the large area and grasping force of anchor claw, it is suitable for sandy or soft water bottom.The main types of anchor are danforth anchor, mahalanobis anchor, speedboat anchor, etc.

(4) special boat anchor: shape and general anchor, such as mushroom shape boat anchor, anchor head was mushroom or umbrella, rodent into the soil in the deeper, grasping force, not easy to move, more used for long-term anchor, positioning, such as light boat, buoy, pontoon and other fixed anchor.

 

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