SU208461A1 - SHIP'S LUCK CLOSURE - Google Patents

Description

Ship hatch covers are known, including two pairs of hinged lids, each of which has a driver and a driver lid, which are moved along the hatch coaming guide and are driven by power hydraulic cylinders, which are rotatably mounted on the deck of the vessel.

The peculiarity of the described closure is that the free ends of the rods of the power cylinders interact with guides, located on the leading lid of the first lid coupled to the deck, and with the curvilinear groove of the swivel lever provided with a roller moving along the rails attached to the driven lid of the first pairs, and on the leading cover of the second pair of montro / van cantilever arm with a roller on the end, which fits into the groove of the vertical column, fixed on the deck.

Such an implementation of the described closure makes it easier to care for it during operation and maintenance.

FIG. Figure 1 shows a side view of the closed and open position of the hatch; in fig. 2 is a plan view, half from the middle of the hatch (the second half is symmetrical to the one shown); in fig. 3 - section B-B along the power loop of the leading section; a lever system is shown together with a hydraulic actuator; in fig. 4, 5, 6 and 7 show the kinematic diagrams of the successive stages of opening the hatch.

The closure consists of four sections}, 2, 3, and 4, interconnected by hinges (see Fig. 1.2).

The driving section / is hinged by means of double power loops 5 with deck butts 6.

Sections 3 11 4 have rollers 7 and 8 on which they move along guide tracks 9 and 10 along the hatch coaming. Each roller is moving along its own track.

The closure is activated by two

hydraulic jacks 11 installed

outside the hatch light (see Fig. 1 and 3).

Hydrojack bodies are connected by means of pins 12 to deck axes 13. The rod of each hydrojack terminates with a cross-bar 14 with two rollers 15, which are fixed in a cantilever and located in the guide grooves of the swivel lever 16. On the cross-bars there are also provided accessories 17.

The axles of the swivel arms 16 are fixed to

brackets 18. Each lever has two levers, corresponding to a closed hatch (see Fig. 3). The power loop 5 has guides 21 made along radii providing a predetermined kinematics of movement when opening and closing the hatch. In the longitudinal coamings, the hatch light is installed on each side of the rack 22 with guide grooves 23. Section 2 has two brackets 24 with guides, section 3 has two cantilever brackets 25 with rollers 26. To fix the sections in the open position, there are stops 27, mounted on the walls of superstructures, cuttings or on deck. The hatch opening process includes a series of sequential steps. The first stage (see everywhere). When the working fluid is supplied to the hydraulic jacks 11, forces are created which, acting through the cross bars 14, the rollers 15 and guides 21 to the power loops 5 of the lead section / turn it around the hinge (point B). At the same time, the hinged section 2 begins to collapse with it. Section 3 and 4 in this lane; iodine closing moves along the hatch coaming as one piece on rollers 7 and 5 along guide tracks 9 and 10. At this stage of opening, the swivel arms 16 remain in place. The second stage (see Fig. 5). The leading section 1 continues to rotate around the hinge (point B). Section 3, moving on rollers 7 along the hatch coaming, abuts rollers 26 of brackets 25 into guide grooves 23 and begins to turn, folding with section 4. Third stage (see Fig. 6). Leading section 1 came into contact with the stops 27, fixing it in the extreme position. Sections 1, 2, 3 4 during this period form a broken line. Further opening is performed by switching the jacks to reverse. At the same time, their traverses 14 with rollers 15, moving along the guide grooves 21 of the power loop 5, act on the pivoting levers 16, which, rotating around their axes, enter rollers 19 into the guide grooves of the brackets 24 of section 2. Fourth stage ( see fig. 7). When the hydraulic jacks are further operated, the traverse bars 14 with the rollers 15 exit the guides 21 of the leading section /, continuing to act on the pivot arms 16, which, in turn, abutting the rollers 19 into the guide grooves of the brackets 24, finally fold all sections behind the hatch light. Jacks 11 are retracted to their initial position. In this case, sections 2 and 5 are folded close together, and section 4, resting on rollers 8, is mounted obliquely, which ensures that sections roll out at the initial moment of closing the hatch. In the initial stage of closing, the jacks 11 operate in a forward direction. The slippage of the traverse 14 with the rollers 15 along the grooves of the pivoting levers 16 is eliminated by plots 17, which abut against the stops 20 of the levers 16, creating forces that rotate the levers towards the hatch, unfolding the sections. Otherwise, the closing process proceeds in the reverse order of the hatch opening. Subject of the invention Shipboard hatch closing, comprising two pairs of hinged lids, each of which has a leading and driven lid, moving along the hatch coaming guide and driven from power hydraulic cylinders, rotatable mounted on the deck of the vessel, characterized in that, in order to facilitate maintenance upon closure during operation and repair, the free ends of the rods of the power hydraulic cylinders interact with the guides, located on the leading lid of the first pair of pivotally connected to the deck, and with the curvilinear The second groove of the pivot arm provided with a roller moves along guides fixed to the driven cover of the first pair, and on the driving cover of the second pair is mounted a cantilever lever with a roller at the end entering the groove of the vertical pillar fixed on the deck.

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