Ijin Marine Limited

Ijin Marine Limited

Professional Supplier of Machinery & Hardware

What is Deck Machinery?

The introduction of winches
The winches are the small light weight lifting equipment to use the wire rope or chain rounding rolls or to upgrade or drag the heavy objects.
The winches have the following features: versatile, compact structure, small size, and light weight, have a significant, convenient to use the transfer. And they are widely used in construction, water conservancy, forestry, mines, docks and other materials, also can make modern electronically controlled automatic operation line equipment.
The winches' capacities range from 0.5 tons to 350 tons, and also divided into two kinds of fast and slow. The winches which are higher than for the large tonnage of 20 tons can be used alone, but also as a component part of crane, road building and mine hoist and other machinery. Because of simple rope around a large, mobile home convenient the winch are widely used. The main technical in dictators are rated winches load, to support the load, speed rope, rope capacity and so on.
In accordance with the power, the winches can be divided into hand winches, electric winches, and hydraulic. From the use of the classification can be divided into construction and boat winches
In accordance with the functions, the winched can be divided into: marine winches, project winches, mining winches and cable.
In accordance with the reel roll, there are single and double rolls winches。
 
Anchor windlass Introduction
Anchor windlass is a large deck on the ship machinery, used to receive, put anchors and anchor chains. Windlass is usually installed in the ship stern first on the main deck for the ship weighed anchor, anchor mooring during the event. Windlass and winch normally used in conjunction. Windlass mainly by the base, frame, anchor chain wheel, brake, sprocket, transmission, electronic control systems (except for manual windlass) and other components, electric windlass with electric motors, hydraulic windlass with hydraulic pump station. Windlass is based on vessel size and the size of anchors and anchor chain to the selection.
Anchor windlass drive in accordance with the form can be divided into: manual, electric, hydraulic, pneumatic, etc .
Anchor windlass diameter can be divided in accordance with φ12 - φ120mm several other specifications.
Anchor windlass drum in accordance with the distribution can be divided into unilateral and bilateral.
Anchor windlass chain of the major technical indicators including the diameter, the nominal anchor speed, rated load, to support the load, a few variable speed, power system and so on.
Anchor windlass installation on the ship anchor chain and sprocket to ensure the wrapping angle of 117-120 degrees.
Marine loading and unloading machinery introduced
There are lifts, hoists and conveyors. Boat lift is a vertical movement of the machine along the rails for lifting and down between decks used goods. Such as greater use of ro-ro deck lifts connect floors to transport goods. Ro-Ro on a scissor lift, chain and several species, its length is 9 to 18.5 meters, a width of 3 to 5 meters. Some also contained barge barge loading and unloading lifts, but the lifting capacity of greater than ro-ro. Elevator is in the vertical direction or tilt direction of the larger continuous delivery of goods. Conveyor is little gradient in the horizontal direction or the direction of continuous delivery of goods. These two machines is used in self-unloading ships or through side doors for loading and unloading of ships.
 
Special Crane Introduction
To accomplish a specific task and developed a special crane. For example: mechanized implementation of tactical and technical safeguards for the use of, or installed in off-road vehicle on the lift wheel armored rescue vehicle; to deal with road traffic accidents wreckers, etc., fall into this category.
Cranes Type: refers to how busy the crane and the degree of change of load parameters.
How busy working on the crane, the total time refers to the year, the crane's actual operating hours and the ratio of total number of hours; for institutions, it refers to an organization operating within a year, the number of hours and the ratio of total number of hours. In a working crane cycle, the percentage of institutions operating time, called the agency's duty cycle, by JC said.
Change of load, according to the design rated capacity of the crane in the actual operation, the crane lifting a load is often less than the rated capacity. This change in load lifting capacity utilization factor of k with that. k = the weight of the crane from the average annual actual / crane's rated capacity.
Work according to how busy the crane and load the degree of change, usually the type of crane work is divided into: light, intermediate, heavy and extra heavy duty class four levels.
Type of work and crane lifting capacity are two different concepts, lifting capacity, is not necessarily a heavy duty, since the weight is small, not necessarily light level. Such as hydropower with the crane lifting capacity of hundreds of tons, but with little chance, only if you install the unit, when the repair crew to use the remaining time stop there, so even though from the very heavy, but still is light level . Another example is the use of the station yard gantry cranes, although not from the weight, but very busy, are heavy duty type of work.
The type of work and crane safety performance has a very close relationship. Starting weight, span, crane lifting height of the same, if the type of work is different in design and manufacture, the safety factor is not taken the same, that is, spare parts, dimensions, specifications vary. Such as wire rope, brake as a result of different types, different safety factors (light-level safety factor is small, heavy duty safety factor), the selected model is not the same. Then, as is the 10t bridge crane, the type of work for the intermediate (JC = 25%) of the lifting motor power N = 16KW, and for heavy duty work type (JC = 40%) Lifting motor power was N = 23.5 KW.
 
Marine Boom equipment classification
Boom equipment can be divided into light and heavy categories. From the weight of 10 tons of equipment for light boom, more than 10 tons of heavy-duty boom for the device. The boom from the weight of the decision based on the use of the ship. General dry cargo boom light weight single lever operation from 3 to 5 tons, double-pole operation is 1.5 to 3 tons; ton dry cargo ships from the weight of a single lever operation up to 10 tons, two-pole operation up to 5 tons . Modern multi-purpose vessel to loading and unloading containers from the weight of the boom of the crane should be able to afford at least a 20-foot container (20 tons). Heavy-duty boom is used to handling large-scale machinery, locomotives and other heavy vehicles, large pieces of cargo, general cargo ships only set 1 ~ 2, since the weight mostly 10 to 60 tons, there are 60 to 150 tons, a small number of 300 tons . Every general dry cargo hold has two light boom; giant dry cargo for each cargo space is often set four light boom.
 
Mooring Winch Introduction
Mooring Winch with wire rope or chain winding drum or traction to enhance the small light weight lifting equipment, also known as the hoist. Winch can be used alone, but also as a crane, road construction and other machinery in the mine hoist component parts, because of simple operation, roping a large amount of displacement convenient and widely used. The product is highly versatile, compact structure, small size, light weight, major and easy to use transfer, lifting the ship's equipment to be used in flat or drag. There are two types of manual and electric winches. Manual rotation of the winch handle is equipped with a stopper drive mechanism (Ratchet and pawl), allows weight to maintain the desired position. Assembly or to enhance the heavy manual winch with safety handles and brakes should be set. Generally used in the manual winch from the weight of a small, disadvantaged or non-power facilities place. Electric winches are widely used in the heavy workload and the necessary traction to larger quarters. Electric single drum winch (Figure) of the motor through the reducer drive reel, between the motor and reducer input shaft equipped with a brake.  To meet the enhanced traction and rotation operations such as the need, as well as double-drum winch and multi-roll device.
 
Marine crane Instruction
Marine cranes are used for loading and unloading cargo ships owned the plant and machinery, there are boom gear, deck cranes and other handling machinery. In sea transport operations performed in the context of a special crane, mainly for the transport of goods between the transfer of ships, offshore supply, underwater launch and recovery equipment, and other important tasks. Specific application to marine ship crane control is a big challenge. On the one hand, similar to the land of underactuated crane equipment, the need to control the load generated during transport of the swing to ensure the accuracy of  its positioning and transportation efficiency; the other hand, this crane fixed on the ship and other sports platform, the platform itself Games of the strong impact load movement, and in many cases, the load lifting and landing point of the movement of the movement itself is inconsistent with the crane. Specifically, in the course of their work, crane ships and receiving ships will be pitching with the waves, roll and heave, the occurrence of these movements will cause the load swing; especially in the lifting process, the ship easily lead to such movement has been suspended the load from the deck again and collision, or to have been put down but not out of the load hook suspended again, these will threaten job security
In recent years, marine cranes, the control of the national military and civil marine engineering in general attention, and studies on the nonlinear, strong coupling of underactuated systems under the control of disturbances in particular have important theoretical value and universal significance.
All above machinery can be got from Ijin Marine Limited, a China hardware trader.

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