SU110498A1 - Device for hauling and lowering trawl during stern trawling - Google Patents

Description

Devices for hauling and lowering a trawl during feeding trawling are known, consisting of a trailing winch, warmers, cables, trawl boards, automatic stops for switching trawl boards, carriages and the rear bridge on and off.

The disadvantage of such devices is the expenditure of considerable labor and time for the inclusion of trawl boards in the traction system of the trawl, their shutdown and the sampling of its wings, which slows the descent and lifting of the trawl.

This drawback is eliminated in the present invention by the fact that automatic stoppers for trawl boards are suspended from carriages, moving along guide cables (cableway) using a trawl winch, and a stopper is mounted to fix the position of the carriages on the back bridge.

FIG. 1 shows a diagram of the device from the side; in fig. 2 - in the nlan; in fig. 3 - diagram of the carriage with locking device.

At the stern of the trawler there is a bridge /, to the brackets of which there are attached guide cables 2, the second ends of which are attached to the swivels 3 by a tension screw 4 mounted in racks 5. On the guide cables 2 a carriage 6 is made, moving from the cables on rollers 7 (Fig. 3). In its rear position, the carriage is held by means of a stopper 8 mounted on bridge 1 (Fig. 3) with a control handle 9 that can be swiveled 10 and provided with teeth 11 that fit in the corresponding slot of the carriage 6.

To the carriage 5 (Fig. 1) the first half 12 of the automatic stopper of the trawl boards is suspended, through which the wire 13 passes, one end of which is taken onto the drum of the winch 14, and the other is connected to the second half / 5 of the automatic stopper, to which the spacer is suspended on the arms board 16. From the second half of the 15 automatic stop

No. 110498-2 -

through the hole in the board passes the cable 17 attached to the bobbin 18 wing of the trawl 19.ch

When hauling a trawl, the vessel’s stroke decreases and the winch 14 begins to choose the wire 13. When the second half, the automatic trap of the trawl boards comes into the first half of 12, and the stopper mechanism is activated, the spacer board 16 is disconnected from the warp, and after the warp the winch begins to choose cable 17. When approaching the bobbin 18 trolley at a distance of 1.5-2.0 m by turning the handle 9, the trolley is loosened and under the action of tensioning the cable, when it is further sampled, along with the boards suspended from it, they will begin to move along the guide cables to the right ebedke. The cable is selected until the carriages fit the swivels 3. By this time, almost the entire trawl will be selected on the working deck. In the water, only the double fart remains.

When the trawl is lowered, the net parts and the ground roll first go overboard. The cables 17 of the grass from the winch 14 and under the action of the tension of the lowered parts of the wing of the trawl also begin to descend into the water. The carriages 6 are pulled back to the bridge / and the stopper is fixed by the stopper 8. As soon as the kabachas pass through the automatic stoppers, the latter are released and their second parts, together with the boards suspended from them, are lowered into the water. When etching wafers for a given length, they begin to produce trawling.

Subject invention

A device for hauling and lowering a trawl during stern trawling, consisting of a trailing winch, wafers, cables, automatic stoppers for switching on and off trawling boards, carriages and a rear bridge, characterized in that, in order to reduce the labor-intensive 5; trawl., automatic stoppers for rear boards are suspended from carriages moving along guide cables (cableway) using a trawl winch, and a stopper is mounted on the rear bridge to fix the position of the carriages on the rear bridge.