JP2665196B2 - Nori net work boat and its operation method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laver net working boat for laminating and laminating laver nets in laver culture, and a method of operating the same.

[0002]

2. Description of the Related Art Seaweed nets used for cultivation of seaweed and the leaves of seaweed breeding on seaweed nets are contaminated with floating substances such as seawater scales and debris. During this time, washing is performed by immersing the laver net in the treatment liquid several times.
In this cleaning operation, a processing tank is stacked on a work boat, and a laver net is drawn into the processing tank while immersing the processing liquid in the processing liquid to perform the cleaning.
An apparatus described in Japanese Patent Application Laid-Open No. 439-439 and Japanese Patent Application Laid-Open No. 5-219847 is known.

[0003] The apparatus described in Japanese Patent Application Laid-Open No. 3-117439 is a tank body provided on a ship body, in which two winding rollers for winding a laver net are juxtaposed. ,
The take-up roller is driven by a prime mover, and a clutch device is interposed between the take-up roller and the prime mover, and one or both of the take-up rollers are driven or idle by intermittent connection of the clutch device. This is a liquid processing device for laver nets.

According to this apparatus, of the two winding rollers provided in the tank body, one of the winding rollers stretches the laver net stretched and washed, and at the same time, the other winding roller It is said that the seaweed net can be stretched to improve the work efficiency.

[0005] The apparatus described in Japanese Patent Application Laid-Open No. Hei 5-219847 is an improved version of the apparatus described in Japanese Patent Application Laid-Open No. Hei 3-117439.
At least four winding bodies, which are arranged side by side in the tank body and wind up the laver net, a driving mechanism for rotating these winding bodies in an arbitrary rotation direction or in an idling state, and the driving mechanism And a main clutch device interposed between the drive mechanism and the prime mover.

According to this apparatus, at least four take-up rollers are provided, so that the laver net wound on an arbitrary take-up roller is re-wound to another take-up roller, The work boat can be moved forward while winding the laver net, and at the same time, the work of sticking to the laver support from another winding roller can be performed. Therefore, it is not necessary to stop and wait the work boat as in the case of the apparatus described in JP-A-3-117439 during the rewinding of the laver net. It is said that it can be done efficiently.

[0007]

SUMMARY OF THE INVENTION In a work boat equipped with a liquid processing apparatus for laver nets as described in the above-mentioned publication, winding and laminating the laver nets as in the apparatus described in JP-A-3-117439. In the case of an apparatus having only one set of take-up rollers for rewinding, the balance of the ship at sea does not matter much. However, as in the apparatus described in JP-A-5-219847, two take-up rollers are used. In the case of having more than one set, the processing tank is also large, and there is a problem in that the balance of the horizontality of the ship is lost due to wind waves or the movement of workers on the ship.

In the device described in Japanese Patent Application Laid-Open No. Hei 5-219847, an imbalance occurs because the prime mover for driving the take-up roller and the like is arranged on one side of the ship body in the front-rear direction (traveling direction). , The balance is maintained by the weight of the worker, but the worker often moves,
It is difficult to keep the ship in balance. Especially during the cleaning of laver nets, there are many tasks that are forward in the direction of the ship,
The leading edge of the ship is likely to be low. In addition, the seaweed net is taken up by the wind-up roller near the front of the ship in the direction of travel, so the weight of the seaweed net is biased toward the front of the ship in the direction of travel and the entire ship is Leans forward. For this reason, when trying to move the ship forward by the reaction force when winding the laver net, the whole ship is greatly tilted forward and there is a danger of flooding and overturning, so a winch is provided at the rear of the ship in the direction of travel. The ship must be advanced while the winch winds up the nori net.

Furthermore, since the distance from the sea to the take-up roller is short, dehydration of the laver net between them becomes insufficient. Then, the seawater attracted by the laver net or the leaf of the laver is mixed into the treatment liquid tank, and the concentration of the liquid is reduced, and the cleaning effect is reduced. Therefore, the immersion time must be lengthened or a highly concentrated solution must be used.

Further, although a worm gear is used to transmit power to the winding roller, the worm gear may be in a no-load state due to a wind wave at sea even when the laver net is being wound, so that the worm gear may be unloaded. Frequent repetition of the load tends to cause the worm gear to pitch the tooth surface, which tends to cause a gear-related failure.

[0011] In the case of a clutch device, a device having a complicated mechanism such as a multi-plate clutch is liable to break down due to seawater corrosion. On the other hand, claw clutches have good transmission efficiency, but when the load is large, the power release is poor, and once the excessive entrainment occurs, the clutch does not release, the front part of the ship is pulled into the sea, An accident occurs in which is entangled in the net.

The problem to be solved by the present invention is to stabilize the balance of the work boat during winding and rewinding of laver nets, to improve the safety of the work, and to reduce the failure of the drive mechanism of the winding roller device. And to improve the liquid treatment efficiency of the laver net.

[0013]

SUMMARY OF THE INVENTION A laver net working boat according to the present invention comprises a processing liquid tank for liquid-processing a laver net, four or more winding rollers arranged in parallel in the processing liquid tank, A laver net working boat equipped with a liquid processing apparatus having a roller drive mechanism, wherein a partition plate for bisecting a processing liquid tank of the liquid processing apparatus in a front-rear direction of the work boat is provided to partition the winding roller with the partition. The same number is disposed on both sides of the plate, and the partition plate is provided with through holes through which the processing liquid flows on both sides of the partition plate.

Here, the prime mover and the power transmission main shaft of the drive mechanism of the winding roller are installed at the center in the front-rear direction of the work boat, and a belt is provided as a rotation transmission means from the power transmission main shaft to each winding roller. Can be. further,
Means for adjusting the position of the transmission-side pulley among the pulleys around which the belt is wound with respect to the take-up roller-side pulley may be provided.

The method for operating a laver net working boat is characterized in that the laver net is wound by using a laver net liquid processing apparatus in which winding rollers are arranged on both sides of a partition plate provided in the processing liquid tank in the same number. In performing the take-up and rewinding, the liquid treatment is performed while winding the undersea laver net by the winding roller near the partition plate in the tank on the rear side in the traveling direction of the work boat among the two tanks partitioned by the partition plate. At the same time, the seaweed net wound on another winding roller in the same tank is unwound and stretched underwater.

Here, in winding and rewinding the laver net, a rotating force in a direction opposite to the rewinding direction of the laver net can be applied to the roller during rewinding.

[0017]

[Function] In a liquid processing device mounted on a laver net work ship,
By providing a partition plate having a through-hole through which the processing liquid flows, so that the processing liquid tank is divided into two in the front-rear direction of the work boat, the processing liquid in the tanks on both sides of the partition plate always flows through each other, and The liquid level is kept almost the same, and even when the work boat shakes greatly during the winding operation of the laver net, the excessive flow of the processing liquid between the two tanks is suppressed by the partition plate, and the liquid level in both tanks changes significantly And the horizontal balance of the work boat is maintained. In addition, the treatment liquid having a higher flow rate after passing through the through-hole hits the laver net being wound up, so that the cleaning effect of the laver net is enhanced.

Further, by installing the prime mover of the drive mechanism of the winding roller and the power transmission main shaft at the center of the work boat in the front-rear direction, the horizontal balance of the work boat is maintained, and furthermore, the power transmission main shaft and each winding roller are separated from the power transmission main shaft. A belt is provided as a rotation transmitting means to the roller, and a means for adjusting the position of the transmission side pulley with respect to the winding roller side pulley among the pulleys around which the belt is wound is provided, so that the rotation transmitting force to the winding roller can be reduced. Can be adjusted.

Further, in winding and rewinding of the laver net in a laver net working boat equipped with the above-mentioned liquid treatment apparatus, a partition plate in a tank on the rear side in the traveling direction of the work boat among two tanks partitioned by the partition plate. By taking up the undersea laver net with the take-up roller, the emphasis point of winding is located almost at the center in the longitudinal direction of the hull, and the whole ship leans forward when winding the laver net. There is no.

Further, in winding and rewinding the laver net, a rotating force in a direction opposite to the rewinding direction of the laver net is applied to the roller being unwound so that the winding and rewinding are performed. To prevent the laver net from sagging.

[0021]

1 is a plan view showing a schematic structure of a laver net working boat according to an embodiment of the present invention, FIG. 2 is a sectional view taken along line AA of FIG. 1, and FIG. 3 is a sectional view taken along line BB of FIG. 4 is a plan view showing a main part of the drive mechanism, and FIG. 5 is a view taken along line CC of FIG.

The laminating net working boat of this embodiment is one in which a liquid processing apparatus 2 is mounted on a ship main body 1. The liquid processing apparatus 2 includes a processing liquid tank 3, and partitions 4 and 4 in the processing liquid tank 3. Book winding rollers 5a to 5d, drive mechanism 6 for the winding rollers 5a to 5d
It is composed of

The boat body 1 is a box-shaped FRP like the body of a conventional laver net work boat, and can be driven by an outboard motor (not shown). As shown in FIGS. 1 and 2, a liquid processing apparatus 2 is installed in the ship main body 1, and spaces on both sides of the liquid processing apparatus 2 are work places S ₁ and S ₂ .

The treatment liquid tank 3 is a box made of FRP.
After being mounted on the ship body 1, it is fixed so as not to move. The processing liquid tank 3 is provided with a partition plate 4 for bisecting the tank body in the longitudinal direction of the hull (vertical direction in FIG. 1), and winding rollers 5a and 5b are provided on one side of the partition plate 4. On the other side, winding rollers 5c and 5d are provided.

The partition plate 4 has a height that protrudes from the surface of the processing liquid in the processing liquid tank 3 and, as shown in FIG. Are provided on the entire surface.

The winding rollers 5a to 5d are used for winding and rewinding the laver net, and the structure of the four rollers is the same for all four rollers. As will be described later, the winding rollers 5a and 5c are used for winding when the seaweed net is pulled up from the sea in order to wash the seaweed net, and the winding rollers 5b and 5d re-use the seaweed net after washing. Used for rewinding when stretching. Before the resealing of the laver net, a transfer is performed in which the laver net wound around the winding roller 5a or 5c is wound around the winding roller 5b or 5d while being rewound.

The drive mechanism 6 includes a prime mover 61, a transmission main shaft 6.
2. It comprises a reversing machine 63 and reduction gears 64a and 64b, and transmits rotation from the prime mover 61 to the transmission main shaft 62, rotation transmission from the transmission shaft 62 to the reversing machine 63, and from the reduction gears 64a and 64b to the take-up rollers 5a to 5d. Is transmitted by a pulley and a V-belt.

The prime mover 61 is installed at the center of the _one work place S _{1 in} the longitudinal direction of the hull, and the transmission main shaft 62 is mounted on the upper part of the center of the processing liquid tank 3 in the longitudinal direction via a bearing (not shown). Further, a cover 8 that is rotatable so as to surround the transmission main shaft 62 is attached via a bearing (not shown). The rotation transmission from the prime mover 61 to the transmission main shaft 62 is performed by pulleys 71 and 72 and a belt 73.

The reversing machine 63 is installed at the center of the other work place S _{2 in} the longitudinal direction of the hull, and rotation transmission from the transmission main shaft 62 is performed by pulleys 74 a and 74 b and a belt 75. The rotation is transmitted from the reversing machine 63 to the speed reducers 64a and 64b through expansion joints 65a and 65b.

The take-up rollers 5a, 5b from the speed reducer 64a
Is transmitted by pulleys 76a, 77a, 77b and belts 78a, 78b, and the rotation is transmitted from reduction gear 64b to winding rollers 5c, 5d by pulleys 76b, 77d.
c, 77d and belts 78c, 78d.
Here, the reduction gear 64 is provided by the expansion joints 65a and 65b.
a and 64b are moved in the direction of the arrow in FIG. 4, and the speed reducer side pulleys 76a and 76b are taken up by the take-up roller side pulleys 77a-77.
By adjusting the tension with respect to the belts 78a to 78d by adjusting the position with respect to the belts 78a to 78d, the winding rollers 5a to 5d are adjusted.
The rotation transmission force to d can be adjusted. Specifically, when the reducer 64a is moved downward in the figure by operating the expansion joint 65a, the belt 78a is tensioned, and a strong rotational force is transmitted to the winding roller 5a.
8b is relaxed and a weak rotational force is transmitted to the winding roller 5b. Conversely, when the speed reducer 64a is moved upward in the drawing, the belt 78b is tensioned, and a strong rotational force is transmitted to the winding roller 5b, and the belt 78a is relaxed and a weak rotational force is transmitted to the winding roller 5a. Is done.

As described above, in the liquid processing apparatus 2 of this embodiment, the partition plate 4 having the through-hole 41 through which the processing liquid in the processing liquid tank 3 flows is provided, and the processing liquid tank 3 is divided into two in the longitudinal direction of the hull. As a result, the processing liquids in the tanks on both sides of the partition plate 4 are always circulated to each other, and the liquid levels in both tanks are kept substantially the same.
Even when the work boat shakes greatly during the winding operation of the laver net, the excessive flow of the processing liquid between the two tanks is suppressed by the partition plate 4 so that the liquid level in both tanks does not change significantly, and Balance is maintained. Thereby, the worker on the ship can work safely. In addition, the flow rate of the processing liquid that moves to another section due to the swinging of the work boat is accelerated by passing through the through-hole 41, and the acceleration of the processing liquid hits the laver net being wound, thereby further improving the cleaning effect of the laver net.

The prime mover 61 and the power transmission main shaft 62 of the drive mechanism 6 for the winding rollers 5a to 5d are installed at the center in the longitudinal direction of the hull, so that the horizontal balance of the work boat is maintained and the power transmission main shaft is further improved. Belts 78a-7 as rotation transmitting means from the roller 62 to the winding rollers 5a-5d.
The provision of 8d eliminates a failure of the drive mechanism as in the case of using a conventional worm gear or clutch mechanism.

Also, of the pulleys around which the belts 78a to 78d are wound, the expansion and contraction joints 65a and 65b capable of adjusting the position of the transmission side pulleys 76a and 76b with respect to the pulleys 77a to 77d of the winding rollers 5a to 5d are provided. With this arrangement, it is possible to make an adjustment so that the rotational transmission force of one pair of winding rollers to one winding roller is increased and the transmission force to the other winding roller is reduced. Thereby, even if the rotation directions of both winding rollers are the same, the laver net wound on one winding roller can be wound in the opposite direction on the other winding roller. Further, it is possible to stretch the laver net while winding up the laver net with one winding roller and at the same time rewinding the laver net in the opposite direction with the other winding roller.

Next, a description will be given of a method of operating a laver net work boat equipped with the above-mentioned liquid processing apparatus 2. The work boat is washed while winding the laver net from the sea with the vertical direction in the drawing of the work boat shown in FIG. 1 as the traveling direction, and at the same time, the washed laver net is stretched in the sea. Hereinafter, an operation method according to the present invention will be described by taking, as an example, a case in which winding and rewinding of a laver net is performed while a work boat is traveling upward in the drawing.

When the washing is carried out while winding the undersea laver net, as shown in FIG. 6, one of the two tanks divided by the partition plate 4 is closer to the partition plate 4 in the tank on the rear side in the traveling direction of the work boat. in the take-up roller 5a taking up the seaweed network M _b. To stretched into the sea while rewinding the seaweed network M _a of the wound cleaned with another take-up roller 5b of the same tank at the same time.

[0036] By performing the winding of seaweed network M _b in the take-up roller 5a, will be the force point of the winding is located in the center of the hull longitudinal direction, the entire ship before during winding of seaweed network M _b The work boat can be advanced using the reaction force at the time of winding without leaning to the side. Therefore, there is no need for a winch for winding up the net as in the related art, and of course, there is no danger of flooding and overturning, and the work can be performed safely.

Further, since the distance from the sea to the take-up roller 5a is increased, dewatering of seaweed network M _b in between them takes place. As a result, the amount of seawater that is attracted by the laver net _Mb or the leaf of the laver and mixed into the treatment liquid tank 3 is reduced, and a decrease in the liquid concentration is prevented. Also, there is no need to use a high concentration solution. Also, between the sea and the winding roller 5a, the laver net M _b
Sterilized by sterilizing lamp or an ozone gas it is also possible to apply, furthermore, it is also possible by blowing gas from the cover 8 to facilitate the dehydration of seaweed network M _b in. Due to these combined effects, the washing time can be reduced, and the laver net M _b
The washing effect is enhanced, and the seawater pollution of the farm can be prevented.

On the other hand, as shown in FIG.
When stretched over the sea while rewinding the moss network M _a from taking up at the same time the take-up roller 5b laver network M _b in a, the take-up roller 5b rotational force in the same direction as the take-up roller 5a is transmitted Have been. However, at this time, the speed is reduced so that the distance between the pulley 76a on the transmission side and the pulley 77b of the winding roller 5b is smaller than the distance between the pulley 76a and the pulley 77a of the winding roller 5a, that is, the belt 78b is loosened. since the position of the machine 64a is adjusted, the take-up roller 5b belt 78b slips when seaweed network M _a is unwound is indicated by the arrow D in FIG rotates in the opposite direction. When the seaweed network M _a Zhang under construction is loosened for some reason, take-up roller 5b is rotated in the direction of arrow D, to prevent loosening of seaweed network M _a.

The wound laver network M _b in the take-up roller 5a, after the cleaning process is over, transfer the seaweed network M _b from the winding roller 5a to the take-up roller 5b. At this time, as shown in FIG. 7, a rotating force in the same direction as the winding roller 5b is transmitted to the winding roller 5a. However, the distance between the pulley 76a on the transmission side and the pulley 77a of the take-up roller 5a at this time is different from the pulley 76a and the take-up roller 5b.
Of the pulley 77b, that is, the position of the speed reducer 64a is adjusted so that the belt 78a is loosened, so that the belt 78a slips and the winding roller 5a moves with the arrow D in the figure. Rotate in the opposite direction. When the seaweed network M _b in was transferred is loosened for some reason is rotated take-up roller 5a is in the direction of arrow D, acts to eliminate the slack of seaweed network M _b, seaweed on the take-up roller 5b net M _b is taken up in the absence of slack.

The above description is for the winding and rewinding by one set of winding rollers 5a and 5b in one of the processing tanks 3, but is for one set of winding rollers in the other tank. The same operation method is used for the winding and rewinding by 5c and 5d. However, in this case, the winding roller 5c,
The rotation direction of 5d is opposite to that of the winding rollers 5a and 5b. The reversal of the rotation direction is performed by a reversing machine 63.

In the above embodiment, the winding rollers 5a to 5d have a round bar shape. However, the winding rollers 5a to 5d are not limited to the round bar shape, and may be a pipe shape or a combination of a plurality of small diameter pipes. Further, a guide for a rope receiver of a laver net can be provided on the winding rollers 5a to 5d.

[0042]

According to the present invention, the following effects can be obtained.

(1) By providing a partition plate having a through-hole through which the processing liquid flows, and dividing the processing liquid tank into two parts in the front-rear direction of the work boat, the processing liquid can be maintained between the two tanks even when the work boat shakes greatly. The excessive flow of water is suppressed by the partition plate, so that the liquid levels in both tanks do not greatly change, the horizontal balance of the work boat is maintained, and the workers on the work can safely work.

(2) Since the prime mover and the power transmission main shaft of the drive mechanism of the take-up roller are installed at the center of the work boat in the front-rear direction, the horizontal balance of the work boat is maintained, and further, each winding from the power transmission main shaft is performed. By providing a belt as a means for transmitting rotation to the roller, the failure of the drive mechanism is eliminated, and a means for adjusting the position of the transmission-side pulley among the pulleys around which the belt is wound with respect to the take-up roller-side pulley is provided. As a result, the rotation transmitting force to the winding roller can be adjusted, and slack of the laver net at the time of winding and rewinding can be eliminated.

(3) Of the two tanks separated by the partition plate, the seaweed net in the sea is wound by a winding roller close to the partition plate in the tank on the rear side in the traveling direction of the work boat, whereby the winding is performed. The point of force will be located almost in the center of the ship's longitudinal direction,
When winding the laver net, the whole ship does not lean forward,
The work boat can be advanced using the reaction force at the time of winding. Therefore, it is not necessary to use a conventional winch for winding up the net, and there is no danger of overturning, so that the work can be performed safely.

(4) When winding the undersea laver net, the distance from the sea to the take-up roller becomes longer, so that the laver net is efficiently dehydrated during that time. Since the amount of seawater that is introduced by the leaves and mixed into the treatment liquid tank is also reduced, and a decrease in the liquid concentration is prevented, the immersion time can be shortened as compared with the conventional case, and there is no need to use a high concentration liquid. In addition, between the sea and the take-up roller, it is also possible to perform sterilization treatment with gas blowing, a germicidal lamp, and ozone gas.The combined effect of these can shorten the cleaning time, and furthermore, the cleaning effect of the laver net is improved. It is possible to prevent seawater contamination of the farms.

[Brief description of the drawings]

FIG. 1 is a plan view showing a schematic structure of a laver net working boat in an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a sectional view taken along line BB of FIG. 1;

FIG. 4 is a plan view showing a main part of a drive mechanism of the work boat shown in FIG. 1;

FIG. 5 is a view taken along line CC of FIG. 4;

FIG. 6 is an explanatory diagram of a winding and rewinding operation of a laver net.

FIG. 7 is an explanatory diagram of a transfer operation of a laver net.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Ship main body 2 Liquid processing apparatus 3 Processing liquid tank 4 Partition plate 5a-5d Winding roller 6 Drive mechanism 8 Cover 41 Through-hole 61 Motor 62 Transmission main shaft 63 Reversing machine 64a, 64b Reduction gear 65a, 65b Telescopic joint 71, 72 , 74a, 74b, 76a, 76b, 77a
~77d pulley 73,75,78a~78d belt M _b, M _a laver network S _1, S ₂ workshop

Claims (5)

(57) [Claims] 1. A liquid processing apparatus having a processing liquid tank for liquid-treating a laver net, four or more winding rollers juxtaposed in the processing liquid tank, and a drive mechanism for the winding roller. A laver net work boat, wherein a partition plate for dividing a treatment liquid tank of the liquid processing apparatus into two in the front-rear direction of the work boat is provided, and the winding rollers are provided on both sides of the partition plate by the same number, and the partition plate is provided. A laminating net work boat provided with through holes through which the processing liquid flows on both sides of the partition plate. 2. A motor and a power transmission main shaft of a drive mechanism of the winding roller are installed at a central portion in a front-rear direction of a work boat, and a belt is provided as a rotation transmission means from the power transmission main shaft to each winding roller. The laver net working boat according to claim 1, characterized in that: 3. The laver net work boat according to claim 2, further comprising means for adjusting the position of the transmission-side pulley among the pulleys around which the belt is wound with respect to the take-up roller-side pulley. 4. When winding and rewinding of the laver net by the laver net working boat according to claim 1 or 2, the tank in the traveling direction of the working boat in the two tanks separated by the partition plate. The liquid processing is performed while winding the sea laver in the sea with the winding roller near the partition plate, and at the same time, the seaweed net wound on the other winding roller in the same tank is stretched underwater while being unwound. A characteristic method of operating a laver net work boat. 5. In winding and rewinding the laver net,
5. The operating method for a laver net working boat according to claim 4, wherein a rotating force in a direction opposite to a rewinding direction of the laver net is applied to the roller during rewinding.