SU1402485A1 - Arrangement for centring shipъs hull in the dock - Google Patents

Abstract

This invention relates to the field of shipbuilding, in particular to devices for centering a ship hull in a dock. The purpose of the invention is to increase efficiency by simplifying the device. The device contains centering devices including: branches 4,5,13 of cables 1,2,14 attached to the hull of the vessel. Cables 1.14 and cables 2 are connected to individual traction bodies - hydraulic cylinders 3. In the required position of the vessel 10 above the keelblocks 36 stocks, the inclination angles to the base of the stocks of the stocks 4.5,13 located in the bow of the ship 10 are the same, and the branches 4 , 5 in the stern of the vessel are symmetric relative-. diametrically plane stocks. When the vessel is displaced from the required position in the centering process, there is an inequality in the force x 4,5,13, under the influence of which the vessel returns to its original position. 3 hp f-ly, 17 ill. i SL ca 4 ;: 00 SP

Description

The invention relates to shipbuilding, in particular to devices for centering the ship's corn bed at the dock.

The circuit of the invention is an increase in the efficiency of the device simplification.

Figure 1 schematically shows the proposed device for centering the hull of the vessel in the dock with a general view; figure 2 - node G in figure 1; on fig.Z - devices for centering, BtopoH option; FIG. 4 is a view A on, 3; figure 5 - section bb on FFG, 4; 6 shows a centering device, the third option; Fig FIGURE TF, another version; FIG. 8 shows a centering device according to a third embodiment, made with cradles; n figure 9 - section bb In Fig; figure 10 is a section of the F to F on Fig; figure 11 - section dD in figure 10; FIG. 12 is a section E-E of FIG. 11; on Fig.13 - section W in Fig.10; on Fig - device made with the elements, the first option; in fig. 15 — node II in FIG. 14; on .16 - shock absorber, another version; in figo17 - float, section (node T in figure 1)

The device contains a cable-blocking system comprising two pairs of cables 1 and 2, each connected to a separate body with a rod of hydrocyles 3. Free branches of cables 1 I: 2, left 4 and right 5, are missing h; spaced apart along the width of the stocks 7, after which they are crossed and connected, respectively, with the right 8 | and the left 9 sides of the hull 10 С | using coupling elements - hooks 111 and rings 12. In the plane of the sides 8 and | 9 placed branches 13 of two additional pairs of cables 14 connected with a rod of a common additional hydraulic cylinder 15o for them. The branches 13 in the plane of each bead 8 and 9 are arranged V-shaped and form a vertical plane 16 ., perpendicular DP (diametral plane) stocks of dock, equal angles o (| FIG. 1) “To hold the ends of the branches 4, 5, 13 with rings 12 on the water surface, floats 17 are attached to them, c; (Fig.2) about

The second variant of the device differs from the first in that two pairs of wires 1 and 2 are combined with a rod of hydrocytes common to them. gnpdra 3 and conc

Vetics 4 and 5 each) pairs of cables and 2 are displaced to the ends of the vessel so that the planes in which they are arranged in pairs are arranged V-shaped, and the angles between each of them and the vertical plane 16 are equal to each other. with the hull of the ship hull 10, as on the axis x are installed rollers 19 (Fig.3,4,5).

The third version of the centering device differs from the first in that the ends of the branches 4 and 5 of the pair of cables

1 and the end of the branch 3 of one of the additional cables 14 are connected by means of the above coupling members to the top point of the stem (bow of the vessel) located in the vessel's DP. The branches 4,5, 13 are passed through blocks 6 on the basis of the stocks 7 so that they diverge to the base, forming equal angles with it (fig.b). At the same time, all three cables: a pair of cables and a cable 14 are connected to one cable body - with hydraulic cylinder rod 3,

and blocks 6 are located in the vertices of an imaginary triangle on the basis of the –stepel 7. Branches 4.5 pairs of cables

2, in the vertical part of the stern of the vessel, located in a vertical plane, perpendicular to the DP berths of the dock, are attached to the sides, but can also be attached to the extreme upper point of the stern in the ship's DP and similarly diverge to the base (Fig. 7). However, in this case, the keel part of the vessel remains unfixed, which reduces the accuracy of alignment during waves at the dock. To eliminate the contact of the branches of the cables with the hull of the vessel, the ends of the branches 4 and 5 of the pair of cables 1 and., The end of the branch 13 are attached to the center of the bow lodgement 20, which covers. the lower (bottom) part of the hull, and the ends of the branches. 4 and 5 pairs of cables are attached to the nasal lodgment 21 (Fig.8 and 9). The lodgement 20 and 21 are suspended to the sides 8 and 9 at the expense of w 1X- from the top of the cables: - 22 and connected with; them with the help of coupling elements 11

and 12.

The first and second versions of the device can also be implemented with the cradle 20 and 21 (see, for example, the first device shown in FIG. 14, where the cradle 20 and 21 are used to fasten the branches of the cables). In order to ensure the coupling of cable endowments 1,2, 14 to the hull of the vessel 10 and to expand the range of centered vessels, each pair of said cables can be wound on a drum 23 connected to a smaller diameter drum 24 mounted on the same axis 25. On the drum 24, turn, wound the cable 26 connected to the free end with the rod of the hydraulic cylinder 3.

Each branch 4.5, 13 of cables 1,2, 14 is provided with a shock absorber 27, which is a part (section) of this branch, which is equipped with a limiter for its stretching in the form of a tube 28 (FIG. 3). The ends of the shock absorber can be attached to the specified cable. (Fig. 16 Hydraulic cylinders 3 can be installed on the dock site not flooded with water, or special racks (not shown). "Winches or loads (not shown) connected to cables 1,2,14 can also be used as a traction body. , which pass through the blocks installed, for example, on racks (not shown s). To prevent the floats 17 from interfering with the vessel's docking, they are supplied with a device with which they can, if necessary, sink to the bottom of the dock. The device includes a flexible hose 29 supported by a cable 30 (FIG. 17) connecting the cavity of the float 17 with the system 31 compressed air supply; A three-way valve 32о is installed on the hose. In addition, two reverse flow valves are mounted into the shell of the float 17: valve 33 locks the entrance to the float 17 and valve 34 locks out the float. The opening force of the valve 33 is greater than that of the valve 34. To ensure that the float does not fold back, a load of 35 "is attached to the underside of the ship. For the ship 10, keel blocks 36 are installed on the slipway 7,

According to the first embodiment, the device operates as follows.

Vessel 10 is brought to the dock by any of the known methods. Using a crane (not shown), the rings 12 are attached to the ends of the branches 4, 5, 13 pairs of cables 1,2, 14 for the hooks 11 on the sides 8 and 9 of the vessel. Then the working fluid is supplied under pressure to the hydraulic cylinders 3 and 15. If the vessel is displaced from the PD, for example, to the left in the transverse direction, the branches 5 are tensioned and,

shaft force from the cylinder 3 to the vessel, move it to combine the DP of the vessel with the DP stocks. The dynamic loads that occur in the elements of the device at the moment of the vessel’s transition through the middle position, when branches 4 come into operation, are extinguished by shock absorbers. Similarly, at the same time, the vessel is centered in the longitudinal direction with the help of a V-shaped 13 additional pairs of cables 14, which are pulled by an additional hydraulic cylinder 15. As the water level in the dock decreases, the vessel approaches the support surface of keelblocks 36, .V - well and symmetrically located

branches 4, 5 and 13 pairs of cables 1,2, 14, remaining under the action of hydraulic cylinders 3 and 15 constantly in the tense position, keep the vessel from shifting both along and across the stocks 7,

In the device according to the second variant, the branches 4 and 5 of the two pairs of cables 1 and 2, which are located V-shaped and symmetrically, not only with respect to the AC 10 of the vessel 10, but also with respect to the mid-headboard, keep the vessel from longitudinal and transverse displacement. These cables during the centering process are pulled by one hydraulic cylinder 3 than

Equal force is ensured in all branches of cables 1 and 2. When tensioning cables, rollers installed in cable sections in contact with the trimming of the vessel 10, as on the axles, roll freely along the casing, ensuring symmetrical installation of cables with respect to DC and mid-frame vessel 10,

In the device according to the third variant, branches 4,5 and 13, the ends of which can be attached to one: ring 12, are connected with a ring with a hook 11 mounted on the top of the bow of the vessel 10. Specified

the branches diverge to the base, forming equal angles with it, and thus, when the cables are tensioned by the hydraulic cylinder 3, they hold the bow of the vessel 10 away from lateral displacements, as well as

ship 10 from longitudinal displacements. The stern of the vessel 10 from the lateral displacements keep the branches of the cables 4, 5 pairs of cables 2 located in the area of the stern

I.5

; In the same way, the device, in the construction of which includes the cradle 20 and 21 (Fig. „8)“ With

the use of lodgements branches 4 and 5

Claims (2)

They do not touch the sides of the vessel and, in addition, transfer the centering forces to the CA bottom part of the hull, which allows (it is possible to improve the accuracy of centering. 4) so that the floats 17 are not megaaaa across the vessel, they go down to the bottom of the dock. For this purpose, a three-way valve 32 is installed on the pant 29 in a position in which the cavity of the float 17 is connected to the atmosphere. Under pressure from the pressure of the valve, the valve 34 in the lower Custi of the float opens and water fills its internal cavity. Dock. After charging with | udna 1 O-installing Three-way to-wound 32 in a different position, at which the cavity of the float 17 connects and | with the compressed air supply system 31. Compressed air through the valve draws water from the float 17, after which the latter rises to the top of the surface. After the float 117 emerges, the three-way valve closes. The air pressure inside the float 17 closes the valve 34, water does not enter it, as a result of which it is held on the surface of the water. Handling elements with a cable block system associated with a cable body, characterized in that, in order to increase efficiency by simplifying the device, from the centering elements include one of the legs of the cable block system equipped with a hitch device dp connection to the vessel’s hull, 2. The device according to claim 1 characterized in that three or more branches of the cables of the cable-block system are fixed with one end to the fore or aft end of the vessel and directed towards the base, forming equal angles with it. 3, Device according to claim 1, 2, 2, characterized in that it is provided with lodgments with cables located in the fore and aft parts of the vessel, at the free ends of which are coupling elements for connecting to the hull of the vessel attached to the lodgements. 4 "The device according to PP, 1 - 3, about t - lch ayuschu eU the fact that each of the branches of the cable block system is equipped with a shock absorber, continuing this branch, and the limiter of stretch of this shock absorber, made in ; 1 o Device for centering the building-35 of the tube or the aforementioned cable, connecting the vessel in the dock, containing a shock absorber centered on the ends / 3 fff YU D. nineteen at four Bb B C nineteen JV / 7 //// 77 f f xvvxj / qjuaS f.9 -J cpu.fO / 23 2 figm - Жsrig .1 CpuSid fig fS fO figm 32 J /