Mechanics

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Steering gear

Steering gear

The safety of navigation depends to a large extent on the reliable operation of its controls. To ensure works of the steering device, full duplication of the power complex (electric motors, pumps) and the use of other energy sources is practiced. Often, auxiliary steering vehicles of lower power are installed. In case of failure of…
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Mooring a boat

Mooring a boat

When operating mooring a boat for various purposes, it is often necessary to moor the boat in the open sea. These activities include transferring the catch from fishing boats to floating fish factories or transport refrigerators, cargo operations at floating drilling rigs, and receiving fuel and supplies from special supply boats. To perform these works…
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chain drives

Chain drives

A chain drives consists of two gears, called sprockets, on which an infinite chain is put on. Engagement occurs between the teeth of the chain sprockets. The chain, unlike the belt, does not slip and can be used in gears with a small distance between the shafts, as well as in gears with a significant…
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Worm gear

Worm gear

Worm gear is used to transfer rotation between two shafts that intersect. At an angle of 90 degrees. Usually the transmission is from the worm to the wheel. The worm gear consists of a worm screw with a modular trapezoidal thread profile angle of 40 degrees, and a worm wheel. The worm gear ratio is…
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Vessel Finder

Vessel Finder

Thanks to the common efforts of people on the planet, over the past century have made an unprecedented breakthrough in the field of navigation, in this regard, there was a need to create a device vessel finder, for safe navigation. Currently, it is not difficult to find a ship, for this purpose there are special…
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Threaded connection

Threaded connection

Threaded connection are conventionally divided into normal and special.In normal cases, the coupling of parts is carried out using bolts, screws, studs and nuts; in special – using threads cut on the connected parts. The degree of thread accuracy of fasteners is selected depending on their working conditions:1)-Threaded connections and thread accuracy:Working under vibration conditions…
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Ship-lifting facilities

Ship lifting

Classification of ship lifting constructions and tendencies of their development. Vessel-lifting structures are called shore and floating engineering structures, designed to extract vessels from the water in order to perform technical work in their underwater part. Some types of these structures can be used to build ships (construction dock, launch dock) or to transport them…
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Engine F. Umpleby.

Engine type

Scheme of the rotary engine. with the planetary movement of the working elements. Classification of rotary engines! Pele 1 When introducing any new type of engine, certain standards are established. First of all, this refers to the classification terminology. It is premature to establish a more precise terminology for taxiways in our country, where their…
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Sail six paddle Yalla

Ships boats

Wooden hex gay yly. The basis of the ero hull set is an oak bar — the keel, to which a stem is attached to the bow, and in the stern — a stern shaft, also made of oak. To protect against mechanical shocks on the keel and the trunk, a metal one is screwed…
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THE LARGEST SHIP LIFT

Heavy Lift

THE LARGEST Heavy SHIP LIFTThe new ship lift at the Three gorges hydroelectric power station is the largest and most technically complex structure of this type in the world. SKF participated in the development of a number of important aspects of this project, which was conducted by the Changjiang Institute of geodesy, planning, design and…
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