FI85001C - VINDSPELSANORDNING FOER AKTERDAECKET I ETT HAVSFORSKNINGSFARTYG. - Google Patents

Description

85001

The present invention relates to a stern winch arrangement for a marine research vessel according to the preamble of claim 1.

Marine research vessels measure the shape of the seabed and the properties of seawater, e.g. with towed sensors. The most commonly used devices are a submersible CTD probe, which measures e.g. the salinity of the water, the oblique sonar (SSS) used to determine the shape of the bottom, and the thermostreamers and thermistor chains used for temperature measurement. In addition, towing vessels with various instruments are towed behind the vessel. The hi-speed varies from 2-3 knots to the top speed of the ship.

There are several different sensors and each of them required its own cable, because the mass of the sensors varies considerably, the lightest sensors weigh a few kilograms and the heaviest up to several hundred kilograms. The cables are often connected to the electrical and telecommunication cabling required by the sensors, which are different for each sensor. Thus, there must be a separate cable reel and winch for each sensor. The thickness of the cable is usually about 15 mm and the diameter of the drum of the cable reels is 1.5 m and the width is 0.5 m. The cable is suitable for a reel of 1000 - 1500 m. The traction of winches is typically about 10 kN. Often two cables are required for the sensors, which further increases the number of winches required. Because there is usually little space on the aft deck of ships, the number of winches that can fit on the deck limits the number of sensors used. The large number of winches increases the purchase price of the vessel and causes more maintenance; measures. In addition, the large number of devices located at different points on the deck interferes with working on the deck and poses occupational safety risks.

Ί. The number of winches can be increased and the total cost can be reduced by connecting the winch reels into winch units. In the winch unit, the cable reels are arranged step by step in a common frame and can be rotated by the same actuator. The coils have the same cable guide. Two or three cable reels are well suited for a winch unit, but if there are several reels, the size of the unit, especially the length, will become too large. Such a unit must not be very long, as it can only be mounted on horizontal surfaces, such as the stern deck or the roof of the ship's laboratory or cabin spaces. In a long unit, implementing a cable guide is cumbersome.

Of course, cable reels can be replaced with winches as needed, but handling heavy cable reels at sea is cumbersome and dangerous.

The sensors are lowered into the water by tilting the A-boom at the stern of the vessel and lifting the sensor attached to the cable over the boom with a mobile crane. When the boom is tilted over the stern of the vessel, the sensor moves to hang on the cable outside the stern. The sensor is lowered into the water by lowering the cable from the spool with a winch. The sensor is raised in the reverse order.

When lowering and lifting the sensor, three workers work in a row-four, one controls the A-boom, one crane and one cable winch. Synchronizing activities with each other is difficult and the risk of accidents is high, especially in rough seas. It is difficult to automate the lowering of the sensor due to the need to use a mobile crane due to the winches located on different sides of the deck.

The object of the present invention is to provide an easy-to-use winch arrangement that can fit in a small space.

The invention is based on the fact that the cable reels are assembled in a vertical frame on a wall against the rear cover.

More specifically, the winch fitting according to the invention is characterized by what is set forth in the characterizing part of claim 1.

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The invention provides considerable advantages.

The structure of the winch arrangement according to the present invention is very simple, which makes it advantageous to manufacture the unit. Multiple cable reels can be assembled into a single frame frame, and the frame can be placed in parallel so that they can be controlled centrally from a single control point. the winch units can be placed in a small space and in a place on the stern deck where no other equipment can be placed. Cable reels assembled in one frame do not need more than one actuator and the transmission to different coils can be easily implemented. If hydraulic motors are used as the actuator for the winches, the pump unit can be placed next to the winch assembly, thus avoiding the construction of long hydraulic lines. If necessary, some or all of the winch units can be placed under the cover if a particularly large number of different cables are required, or if the rear cover is desired to be free.

In new research vessels, the laboratory facilities can be located so that the winch units are attached to the laboratory wall, so that the communication cables of the sensors can be routed directly from the cable reel through the wall to the laboratory. The lifting and lowering of the sensors can be automated to a large extent and the control devices for lowering and raising and winches can be centralized in one control panel, which is placed so that the lowering and lifting of the sensors can be safely controlled and monitored. When using the winch units according to the invention, only one permanently installed crane is needed to lift the sensors, because the starting points of the cables are close to each other. One worker is able to lower and raise the sensor, not the stern !. · Deck workers need to be lifted during lifting, which greatly increases occupational safety. Because the winches operate j - independently, several towed sensors are added to the water simultaneously.

On the newest research vessels, the laboratory facilities are Interchangeable, · and are placed on the deck of the vessel in a container that 4 85001 can be exchanged in the port according to the vessel's research task. The winch units according to the present invention can be attached to the wall of a laboratory container, whereby the sensor cables also change when the container is changed. Alternatively, a separate replaceable unit can be assembled from the winch arrangements. Each winch arrangement can be easily enclosed on the outside and equipped with a door, thus protecting the cables from the weather. A door or inspection hatches can also be made on the wall of the laboratory building, allowing the cables to be inspected and the necessary connections to be made indoors in the laboratory.

The invention will now be examined in more detail with the aid of the accompanying drawings.

Figure 1 schematically shows one embodiment of the invention from the side.

Figure 2 is a schematic front view of the embodiment of Figure 1.

Figure 3 schematically shows the arrangement of the sensor traction equipment on the stern deck of the research vessel as seen from the side of the vessel.

Fig. 4 schematically shows the arrangement according to Fig. 3 seen from above the deck of the ship.

The structural principle of the winch arrangement 1 according to the invention is shown in Figures 1 and 2. The arrangement 1 is fixed to the rear side 9 wall 22 of the laboratory rooms 11. The upper part of the body 21 of the arrangement 1 is at the height of the roof 10 of the laboratory rooms 11. The arrangement 1 has four cable reels 4, which V; is installed in two rows 2 and 3 on top of each other. Adjacent ‘reels are mounted on the same shaft. The upper pair of coils is mounted on the shaft 6 and the lower pair on the shaft 7. Each overlapping pair of coils 2, 3 has a common cable guide 5, the position of which can be chosen so as to best meet the needs of all the coils 4 in the row.

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The hydraulic motor rotating the cable reels 4 is placed between the reel rows 2, 3 and connected with the necessary clutches and other transmission devices into a transmission package 20. The power of the hydraulic motor is transferred to the shafts 6, 7 of the cable reels 4 via switches. The rotatable coil 4 is selected by connecting a hydraulic motor to rotate the selected coil 4. If necessary, more than one coil 4 can be rotated simultaneously. With this structure, the power output and transmission of the winch can be realized with one hydraulic motor. In this case, the hydraulic pressure is conducted from the pump unit to only one hydraulic motor, which only needs one control circuit. The structure of the winch arrangement 1 is thus very simple and reliable.

Figure 3 shows the stern deck 9 of a vessel 13 on which a winch arrangement 1 with a part of the coils is placed under the deck (coils 23), a crane 12 and an A-boom 16. The cable 8 first passes through a cable guide 5 to a deflection wheel 15 from here on into the water. When one of the sensors 14 is to be lowered into the water, it is attached by a stern cover 9 to the cable 8 routed through the cable guide 5.

"1 The A-boom 16 is tilted over the stern cover 9 and the sensor 14 attached to the cable 8 is passed over the A-boom by a crane 12.

: At the same time, the cable 8 is guided to pass through the deflection wheel 15.

: Tilt the A-boom back over the stern to the towing position and lower the arm 14 into the water. Several cables 8 can pass through the A-boom 16 simultaneously, and new sensors 14 can be lowered into the water at the same time as other sensors 14 are already being pulled. In this way, several sensors 14 are obtained in the water simultaneously, whereby several measurements can also be performed simultaneously. As a result, the time taken for measurements - ·. shortens, and the values of the parameters measured simultaneously can be compared better with each other than those measured in succession.

Figure 4 shows the stern deck 9 of the ship 13 from above. The circle 19 depicts the operating range of the crane 12, the center of which is the crane attachment point 18. Two winch arrangements 1 and 17 are attached to the wall 22 of the laboratory building 6 85001 11. The arrangement 17 has only one row of cable reels. The operating area 19 of the crane 12 extends in front of both winch arrangements 1 and 17.

The winch arrangement 1 according to the present invention may differ from the embodiment described above. The desired number of cable reels 4 can be connected to the arrangement. There are at least two coils 4, and in practice the maximum number of coils 4 in one arrangement is six. In special cases, use ampoule arrangements can be used. This is especially the case when a very large number of different sensors 14 and cables 8 are required for the measurements. In this case, part of the cable reels 4 can be placed under the rear cover 9, whereby a large number of coils 4 can be superimposed on the arrangement. In the width direction of the ship 13, a maximum of two two-row winch arrangements are generally suitable for the stern deck 9. The total number of coils would thus be two using a two-row and three-layer arrangement 12. The system of Figure 4 with a two-row 1 and single-row 17 winch arrangement can be combined into one three-row arrangement.

If the tensile force required to wind the various cables 8 and the sensors 14 varies greatly, it may be advantageous to use more than one hydraulic motor. Each coil 4 can be fitted with its own motor, or the motors can be connected so that each motor can rotate each shaft 6, 7 of the coils 4. If additional power is required, the motors are switched on simultaneously. The members producing and transmitting the required rotational power can be placed, for example, as a transmission package on either side of the arrangement. Other actuators, such as electric motors, can be used instead of hydraulic motors. Each coil 4 can, if necessary, have its own cable guide 5.

The arrangement can be made interchangeable, so that by combining different arrangement packages, the vessel can be equipped with a selection of cables suitable for the research task in the port, and there is no need to carry additional cables. Winch arrangements can be combined with interchangeable laboratory containers, in which case the cable equipment is replaced together with the container. Thanks to the easy interchangeability, the equipment on board is always appropriate and unnecessary equipment does not have to be carried. The same platform can be used in different ways for different types of research tasks.

Claims (5)

A windlass device (1) for the transom (9) of a marine research vessel (13), comprising - At least two cable drums (4), - a body structure (21) in which the shafts of the cable drums (4) are mounted, - power transmission means (20) ), which are arranged to generate the torque needed to rotate the cable drums (4) and to transmit it to the shafts (6, 7) of the drums (4), characterized in that - the cable drums (4) in the device (1) are arranged above each other, so that they form at least one row (2, 3), the center axis of each cable drum (4) being between the vertical planes tangent to the outer edges of the largest cable drum (4), and - the wind play device (1) of the vertical (13) vertical structure of the vessel (13). 2. Wind play device according to claim 1, characterized in that the cable drums (4) belonging to the device are arranged in at least two rows (2, 3) on such a position that the shafts (6 to 7) of adjacent drums (4) from separate rows (2, 3) the pS is the same line. 3. Wind chimes according to claim 1, characterized in that the wind chimes (1) are detachable as a whole unit detachable at the vessel (13). 4. Wind chimes according to claim 3, characterized in that the device (1) is detachably detachable at any of the deck structures (11) of the ship (13). Windscreen device according to claim 1, characterized in that there is one cable guide (5) for each row of cable drums (2, 3) in the device (1).