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A composite fender technology, applied in the field of composite fenders, can solve the problems of short service life, ugly, easy to be crushed, etc., and achieve the effects of short service life, long service life and slow response speed.
Inactive Publication Date: 2010-04-28
钟爱民
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Problems solved by technology
Cylindrical fenders hanging on the wharf and ship’s side and fenders with spherical ends of the cylinder are also called ball-based. Cylindrical fenders are made of hard rubber, which absorb the impact energy of the ship by rubber deformation. This kind of fender absorbs less impact energy, has greater reaction force, and is heavy. It will not float with the tide level, so it is not suitable for sea areas with large tidal range.
Among the hemispherical fenders at both ends of the cylinder, some are filled with foam material as the buffer medium, and some are filled with gas as the buffer medium. The fenders using these two buffer media are light in weight, easy to install, and can float on the water surface. In general, the advantages of large energy absorption and small reaction force are very popular, but there are also defects such as short service life. The fender using EVA foam material as the buffer medium has slow response speed, poor elasticity, and low material strength. The pressure is easy to be crushed; the inflatable fender is easy to be punctured, and the shell of the fender will age and leak after repeated extrusion and long-term sunlight. In order to prevent the inflatable fender from being punctured, it is necessary to use old tires and The anchor chain is made into a net for protection, which is expensive, ugly, and will damage the paint film on the side of the ship
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Embodiment 1
[0025] Embodiment 1, as shown in the figure, the composite fender used for the protection of docks, ships, ocean engineering, etc. is composed of an outer shell 1, a buffer protective layer 2, and an inner tank 3. There is an inflation nozzle 4 on the inner tank 3, and the fender The two ends of the side are provided with a mooring flange 5, and the mooring flange 5 is also provided with a mooring ring and the like. The overall length of the fenders is 3m. The diameter is 2m, and its aspect ratio is 1.5. Both ends of the airbag adopt hemispherical heads. The shell of the fender is made of rubber or plastic, and contains three layers of rubber-coated steel cord skeleton material. The surface of the shell is coated with a protective layer of light blue-gray PU with a thickness of 6mm; the buffer protective layer 2 of the fender adopts non-cross-linked obturator Structural rubber foam material with a thickness of 350mm and a density of 0.302g / cm 3 , hardness (Shore A type) 33°,...
Embodiment 2
[0026] Embodiment 2, as shown in the figure, the giant composite fender is composed of an outer shell 1, a buffer protection layer 2, and an inner tank 3, and the inner tank 3 has an inflation nozzle 4, and the two ends of the fender are provided with a cable flange 5. There are also mooring rings and the like on the mooring flange 5 . The total length of the fender is 5m, the diameter is 3m, and its length-to-diameter ratio is 1.67. Both ends of the airbag adopt oval heads. The shell of the fender is made of rubber or plastic, containing twelve layers of polyamide fiber cord fabric skeleton material, and the surface of the shell is coated with a protective layer of silver-gray neoprene rubber with a thickness of 4mm; Closed-cell rubber foam material with a thickness of 500mm and a density of 0.26g / cm 3 , hardness (Shore A type) 30°, tensile strength not less than 1.8MPa, tear strength not less than 1.5MPa, elasticity 40%, flexing and cracking 120,000 times; the liner 3 of th...
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Abstract
The invention relates to a combined type fender, which is a protective device to be used in docks, shipping and oceanographic engineering. The combined type fender is characterized by consisting of a shell, a buffering protective layer and a liner. The combined type fender integrates the advantages of various fenders, has the characteristics of toughness, extrusion resistance, fatigue resistance, ageing resistance and long service life of a fender taking rubber as a buffering medium, and avoids the disadvantages that the weight is large, the fender cannot float on a water surface, energy absorption is less and counter-force is large; the combined type fender also has the advantages of light weight, convenient installation, large energy absorption, small counter-force and pricking resistance which are possessed by a fender taking a foaming material as the buffering medium, and avoids the disadvantages of slow response speed and short service life; and in addition, the combined type fender also has the advantages of light weight, convenient installation, large energy absorption, small counter-force, quick response speed, capability to backpressure adjustment on the energy absorption and the counter-force and the like which are possessed by an air inflation type fender taking gas as the buffering medium, and avoids the defects that the combined type fender is easy for pricking, aging and air leakage, and needs to be maintained frequently.
Description
technical field [0001] The invention relates to a composite fender, which is a protective device used in docks, ships and marine engineering. Background technique [0002] There are many types of fender products in use at present, which can be divided into hard rubber, foam material (sponge) and gas according to the structure of the buffer medium. Cylindrical fenders hanging on the wharf and ship’s side and fenders with spherical ends of the cylinder are also called ball-based. Cylindrical fenders are made of hard rubber, which absorb the impact energy of the ship by rubber deformation. This kind of fender absorbs less impact energy, has greater reaction force, and is heavy, and will not float with the tide level, so it is not suitable for sea areas with large tidal range. Among the hemispherical fenders at both ends of the cylinder, some are filled with foam material as the buffer medium, and some are filled with gas as the buffer medium. The fenders using these two buffer...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information
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