JPS6224454Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a hanging line lifting device for pulling up the hanging line of a culture cage in pearl farming, and in particular, it is used to pull up the hanging line of a culture cage necessary for cleaning cultured shellfish. This is a device to reduce heavy labor.

(Prior art) Most of the pearl farming methods currently applied involve building a raft and suspending a culture cage underneath it.
Alternatively, aquaculture cages are suspended from long ropes with floats attached. Several mother-of-pearl oysters are placed in one basket and cultured for a certain period of time. After the pearls have grown to a predetermined size, they are removed from the mother-of-pearl oyster.
During this cultivation period, seaweed, barnacles, etc. adhere to the surface of the mother oyster, and if these become abundant, they can cause the mother oyster to die. For this reason, cleaning work for cultured shellfish has become an important task, and this cleaning work is performed because the plankton that mother shellfish prey on is depleted due to seaweed such as nori and small molluscs such as barnacles that adhere to the surface of mother shellfish. This work is essential to prevent the mother mollusk from malnutrition, delayed growth, and death due to the reduced amount of oxygen it breathes.

In cleaning work using the aquaculture method, in which a large number of aquaculture cages are suspended at regular intervals from a long rope, as shown in Figure 1, the work boat 1 is placed parallel to the rope 2, and the bins installed on the side 3 of the work boat 1 are The rope 2, which is floating in the sea due to the buoyancy of the pin balls 2a, is placed on a roller 4a called a ball roller 4, which is equipped with feathers for pulling the rope 2, and the rope 2, which is floating in the sea due to the buoyancy of the pin ball 2a, is rotated and the hanging line 6 of the aquaculture cage 5 is tied to the roller 4a. Wind the rope 2 to the position shown. At this time, the work boat 1 is
It moves relatively in the direction of winding the rope 2 at the rotating speed of a.

The hanging line 6 that suspends the aquaculture cage 5 is the rope 2
When the position tied to the roller 4a is drawn to the roller 4a and the worker on the ship can reach it,
The worker quickly pulls up the hanging line 6 by hand, puts it into a cleaning machine 7 using water pressure, and washes the main frame together with the basket. This cleaning machine 7 is provided with a belt conveyor 7a in the center, and a gap is provided on the side surface 7b of the cleaning machine 7 facing the side where the bottle roller 4 is installed for the hanging string 6 to pass in parallel to the belt conveyor 7a. It is being Therefore, when the hand-raised aquaculture cage 5 is placed on one end of the belt conveyor 7a,
The aquaculture cage 5 is sent into the cleaning machine 7, and water is sprayed from a spray nozzle provided inside the cleaning machine 7 to wash off seaweeds, props, etc. attached to the cage and the mother tool. The cleaned culture cage 5 is sent to the other end side of the belt conveyor 7a and taken out from the cleaning machine. The aquaculture cage 5 that has come out of the cleaning machine is returned to the sea by the waiting worker.

In a series of operations for the aquaculture cages 5 performed in this way, the operator on the ship
The hanging line 6 that has been wound up must be manually pulled up each time. This work is extremely hard work, and in addition to simple physical fatigue, many workers suffer from back injuries and other occupational illnesses. Against this current situation,
To eliminate such hardships from the people working in the field,
At the same time, it is hoped that more labor-saving machines will emerge.

(Purpose of the invention) The present invention was made in response to the above-mentioned request, and includes a suspension string for pearl culture cages, which is equipped with a mechanism for winding the rope on which the culture cage is suspended, and a mechanism for pulling up the culture cage suspension string tied to the rope. It provides salvage equipment.

(Structure of the invention) The feature of the device according to the invention is that it is equipped with a double shaft in which an outer shaft and an inner shaft are coaxially combined via bearings, and the outer shaft has a rope wheel for wrapping aquaculture rope at one end. a rope wheel for pulling up the suspension line of the aquaculture cage is provided on the same end of the inner shaft as the rope wheel installation side of the outer shaft, and a rope wheel for pulling up the suspension line of the aquaculture cage is provided in parallel with the rope wheel of the outer shaft; A hanging line entanglement prevention device is provided to prevent the hanging line from wrapping around the rope wheel.

(Function) Since the device of the present invention is configured as described above, the outer shaft can rotate the rope wheel that winds the aquaculture rope, and the inner shaft can rotate the rope wheel that pulls up the hanging line of the aquaculture cage. The device on the stand can pull the aquaculture rope and at the same time pull up the suspension line of the aquaculture cage without winding it around the rope car for pulling up the suspension line. This allows workers to replace salvaged aquaculture cages with cleaning machines and return the cleaned aquaculture cages back into the sea, reducing the burden on workers associated with cleaning aquaculture cages.

(Example) Hereinafter, an example of the present invention will be explained with reference to the drawings.

As shown in FIGS. 2 to 4, the rollers can be rotated independently via rolling bearings 11.
A double shaft 14 in which an outer shaft 12 and an inner shaft 13 are coaxially overlapped and combined is supported by a bearing 16 fixed to a case 15. Case 1 of this double shaft 14
The end (the right end in the figure) that protrudes outside of the rope wheel 5 is used as a rope wheel attachment part, and the rope wheel 17 for winding the aquaculture rope is fitted and fixed to the outer shaft 12, and the inner shaft 13 is fixed to the outer shaft 12. The rope wheel 18 for pulling up the suspension line of the culture cage is fitted to the end of the part protruding from the shaft end of the outer shaft 12, and is bolted to the rope wheel mounting plate 19 fixed to the end of the inner shaft 13. and fix it. A groove 17b is provided on the outer periphery of a side disk 17a of the rope wheel 17 facing the rope wheel 18 side so that the hanging line 6 can be caught therein. A worm gear 20 is attached to the center of the outer shaft 12, and the driving force of the hydraulic motor 21 is transferred to the worm 22.
to be able to communicate via. A speed increasing gear 23 for transmitting the driving force transmitted from the hydraulic motor 21 to the inner shaft 13 is provided at the end of the outer shaft 12 opposite to the end at which the rope wheel 17 is provided (the end on the left side in the figure). A power transmission gear 26 that receives the driving force from the speed increasing gear 23 via intermediate gears 24 and 25 is attached to the end of the inner shaft 13 that protrudes from the outer shaft 12 at the end in the same direction. The number of teeth of this gear is set so that the rope wheel 18 can pull up the culture cage 5 faster than the rope wheel 17 can wind the rope 2 for the distance between each hanging line 6.

A control valve 27 is directly connected and provided directly below the hydraulic motor 21, and a lever 29 is attached to the end of the valve shaft 28 that comes out from the control valve 27 that comes out of the case 15.
Allows manual operation.

On the lower side of the end of the case 15 where the rope wheels 17 and 18 are provided, there is an L-shaped mounting plate 31 for attaching a baffle plate 30 for preventing the hanging line 6 from being caught in the lower part of the rope wheel 18, and A triangular-shaped hanging line guide 32 is provided for transferring the lifted hanging line 6 to a rope wheel 18 during the lifting process.

Figure 3 shows the relative positions of this device when viewed from the rope wheel side, including the relative positions of the hydraulic motor 21 and the worm 22, the worm gear, and the outer shaft 12.
speed increasing gear 23, intermediate gear 24, intermediate gear 25
The relationship between the inner shaft 13 and the power transmission gear 26, and the relative positional relationship between the rope pulleys 17 and 18, the L-shaped mounting plate 31, and the hanging line guide 32 are shown. Figure 4 shows this three-dimensionally.

The procedure for working using the hanging line lifting device configured as described above is as follows.

Assuming that a large number of aquaculture cages 5 are suspended from a long aquaculture rope 2 at regular intervals, the work boat 1 is stopped along the rope 2 and the rope 2 is hung on a rope wheel 17. When the lever 29 is operated to activate the hydraulic motor 21, the rope 2 is wound around, and when the knot of the hanging line 6 suspending the aquaculture cage 5 is pulled close to the rope wheel 17, the hanging line 6 becomes a hanging line. The rope car 1 is guided by the diagonally cut end face of the guide 32 and moves away from the side 3.
It is caught in the groove 17b provided in the side disk 17a of No. 7, and further enters the outer rope wheel 18. The rope wheel 18 is rotating faster than the rope wheel 17, so when the hanging line 6 enters, the hanging line pulls up the culture cage 5 faster than the speed at which the rope 2 is wound to the position where the next hanging line 6 is tied. Roll and fry 6. When the hanging line 6 is hoisted up by the rope wheel 18, it is prevented from being wound around the rope wheel 18 by the baffle plate 30, and the hanging line 6 is hoisted up in a state where it can be easily removed. When the aquaculture basket 5 is hoisted up, an operator transfers the aquaculture basket 5 to a cleaning machine 7 and washes the entire basket with water. Cleaning machine 7
When the worker throws the cleaned aquaculture cage 5 into the sea, the work related to cleaning the aquaculture cage 5 is completed, and the operator waits for the next aquaculture cage 5 to be hoisted up. become. In this series of operations, the only manual operations required are lever operations and relay operations for loading and unloading the hoisted culture cages 5 into and out of the cleaning machine 7, which greatly reduces the workload.

In the above embodiment, the drive system for the outer shaft and the inner shaft is configured as a gear mechanism in which a worm is provided on the shaft of the hydraulic pump, a worm gear is provided on the outer shaft, and the speed of the inner shaft is increased with respect to the outer shaft. Conversely, a gear mechanism may be provided in which the inner shaft is first driven from the power source and the outer shaft is rotated from the inner shaft via a reduction gear. As for the gear mechanism, in addition to a combination of spur gears, a planetary gear mechanism can be used for increasing and decreasing. It is also possible to use independent hydraulic pumps instead of using a common power source.

Further, although the hanging line guide is made of a plate material, it is also possible to use a bar material bent to give it a curved line to provide the same function, or a plate material with a different shape.

(Effects of the invention) The pearl culturing cage hanging line lifting device according to the present invention having the structure and action described above reduces the work burden on the worker associated with the cleaning work of the pearl culturing cage, and also reduces the burden on the operator when cleaning the pearl culturing cage. Enable work to be done efficiently.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram showing a conventional device for cleaning a pearl culturing cage, Fig. 2 is a longitudinal cross-sectional view of a suspension line pulling device for a pearl culturing cage of the present invention, and Fig. 3 is a diagram showing a device for pulling up a hanging line for a pearl culturing cage of the present invention. Cross-sectional view of the hanging line pulling device, No. 4
The figure is a transparent perspective view showing the relative position of each component other than the rope wheel in the device for pulling up a string for a pearl culture cage according to the present invention, and FIG. 11... Rolling bearing, 12... Outer shaft, 13...
...Inner shaft, 14...Double shaft, 16...Bearing, 17...
...Rope car for winding rope for aquaculture, 18...
Rope car for pulling up a hanging line, 20...Worm gear, 21...Hydraulic motor, 22...Worm, 2
3... Speed-increasing gear provided on the outer shaft, 24, 25
. . . Intermediate gear, 26 . . . Power transmission gear provided on the inner shaft, 30 . . . Baffle plate for preventing entanglement of hanging line, 32 . . . Hanging line guide.

Claims (1)

[Scope of utility model registration request] It is equipped with a double shaft in which an outer shaft and an inner shaft are coaxially combined via a bearing, the outer shaft is provided with a rope wheel for winding the aquaculture rope at one end, and the inner shaft is equipped with a rope wheel for winding the rope for aquaculture. A rope wheel for pulling up the suspension line of the aquaculture cage is provided at the end on the same side as the car installation side, in line with the rope wheel of the outer shaft, to prevent the hanging line from being wrapped around the rope wheel for pulling up the suspension line of the aquaculture basket. A suspending line pulling device for a pearl culture basket, characterized by being provided with a suspending line entanglement prevention device.