RU2183172C2 - Shallow-draft push-train - Google Patents

Abstract

FIELD: shipbuilding; navigation in inland waters with many shallow-water berths. SUBSTANCE: shallow-draft push- train includes pusher, cargo sections having recess in stern between side fairing stops and forming attachment located in fore confuser between stems of head sections. Ratio of length of cargo section to its width ranges from 3.2 to 4.5. Lower portion of fore structure is flat and bilges are convex outside. Upper cargo watertight deck of cargo sections is made in form of platform guarded by cargo bin. Awning shelters made from light knock down arched structures are erected on decks of cargo sections. EFFECT: extended functional capabilities. 2 dwg

Description

 The invention relates to shipbuilding, in particular to pushed convoys for inland waterways having numerous shallow berths, including small navigable rivers.

SUMMARY OF THE INVENTION
The composition is formed of relatively short wide pointed nests with a niche in the stern of cargo sections, platforms suitable for transporting goods in small batches.

 Small draft sections-platforms is achieved by bringing the ratio of the length of the section-platform to its width to 3.2-4.5. In addition, the reduction of section sediment is achieved by giving the lower part of the nasal sharpened formation of the section-platform area flat, and the cheekbones are vertical with a curved outward, to lean on the inner walls of the side stops-fairings, which enclose the side of the aft niche, in which the nasal formation is located behind the located sections during the movement of the composition. In this case, the feed stops-fairings are also made displacement, which also reduces the draft sections, eliminates their trim on the stern.

 The prototype of the invention is the "Integral river pushed convoy" according to the invention of the Russian Federation 2099234, registered in the State register of inventions 12/20/97, class. B 63 B 21/56, 35/66. A disadvantage of the known composition is the complexity of the hatch closures, the relatively large draft of the cargo sections.

 The cargo sections of the proposed small-sitting composition are characterized in that their upper cargo waterproof deck is made in the form of a platform enclosed by a cargo hopper. To shelter the deck cargo on the deck, tarpaulin awnings are constructed from light arched structures and portable racks, and strips of tarpaulin or its substitute are usually stretched over the cargo hopper across it overlapping, starting from the stern of the cargo section. The use of a lightweight collapsible shelter design is not associated with a noticeable increase in draft sections.

 Figure 1 shows a plan of a two-strand multisectional small-sitting pushed train intended for movement along rivers with large reservoirs with headwinds and waves, top view.

 The head bow thruster fairing 1, having a closed hold 2 for small consignments, is located in the bow confuser of the thread of the sections of the composition, which improves the driving performance of the composition and prevents flooding by the wave of its head.

 The cargo sections 3, located with their nasal formations in the niches of the pushed sections, have a pointed U-shape of the nose 4, which is admissible for the safety of swimming along the reservoirs, which enters the aft niche in front of the pushed section.

 In FIG. 2 shows a cross section of the shape of the nasal mass. The lower part of it is flat, and the cheekbones are vertical with a curvature outward, which during rolls and side rolling provides without excessive tension the support of the nasal formation on the inner walls of the enclosing niche from the sides of the stern side stops-fairings 5, which abut their vertical beams at the ends to the side recesses with rounded protrusions behind the located section 6, while all the points of contact of the sections are equidistant from the longitudinal, transverse and vertical axes of the junction of the sections. Such a coupling of the cargo sections is suitable for wake, two- and multi-strand trains operated on main rivers and reservoirs. Vertical movement of the ends of the sections on the wave is provided by the use of single-lock claw end automatic couplings, covering the central coupling beam from the sides, installed in the middle of the stern in front of the located section, or cables with shock absorbers are used to couple the sections.

 The bow thrusting head fairing 1 of the small-sitting composition has bow lowering rudders of the dowel-type 7, controlled from the pusher’s bridge, which significantly improves the controllability of the long train in a dump wind. It also has a hold 2 with hatch covers for small consignments and a ship crane 8 to accelerate cargo operations at final points and at small intermediate marinas. If the console does not have its own power plant, then the ship crane receives energy from the shore, or from the auxiliary pusher 9, accompanying the convoy during its non-stop movement, bringing and removing sections from the convoy for cargo operations.

Claims (1)

 A small-sitting pushed convoy containing a pusher, cargo sections having a niche in the stern between side stops-fairings, and forming a prefix located in the bow confuser between the fore sections of the head sections, characterized in that the ratio of the length of the cargo section to its width is 3.2-4, 5, and the lower part of the nasal formation of increased displacement is made flat, and the cheekbones are curved outward, to support when rolling on the inner walls enclosing the aft niche from the sides of the feed stops-fairings in front of the the body section made displacement to reduce the draft and the differentiation of this section on an even keel, thereby ensuring the safety of navigation of the small-sitting pushed convoy in conditions of unrest at the reservoirs, while the upper cargo waterproof deck of the cargo sections is made in the form of a platform enclosed by a cargo bunker, and for shelter deck cargo on the deck of the cargo sections are constructed of lightweight collapsible arched structures tent shelters, with strips of tarpaulin or its substitute stretched across of the cargo bunker, starting with its aft lap, and the fairing prefix has a cargo crane and a hold with hatch for placement of small consignments.

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