JP4042070B2 - Ship's bulk delivery device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a dispensing device for unloading bulk material stored in a storage tank in a ship, and in particular, a runaway of a dispensing machine for discharging bulk material from the bottom of the storage tank and dropping it on a conveyor installed along the ship bottom. The present invention relates to a dispensing device having a function of preventing the wheel from falling off.
[0002]
[Prior art]
A cargo ship that transports irregular shaped solid cargoes consisting of loose materials such as ores, coal, limestone, wood chips, grains, cement, etc. is a single storage tank from the bow to the stern. Alternatively, a plurality of storage tanks divided forward and backward by partition walls are provided in the ship.
[0003]
In order to discharge waste completely from the storage tank, it is necessary to install a dispensing device along the bottom of the storage tank. For example, Japanese Utility Model Publication No. 2-333196 for cargo ship storage tanks. It is widely known as described in JP-A-6-63534.
[0004]
FIGS. 5 and 6 are diagrams for explaining the outline of the above-described dispensing device, and the entire length of the flat portion of the bottom wall 72, which is the lowest portion of the storage tank 71 having the bottom wall 72 inclined in a hopper shape, extends over the entire length. A slit-shaped discharge port 73 is provided, and a mountain-shaped cover body 74 is installed above the slit-like discharge port 73, and the carriage 77 of the dispenser 76 having the carriage 77 and the wheel 78 is positioned inside the cover body 74, and the traveling rail 75. A belt-type conveyor in which a wheel 78 protruding outward from a gap between the lower end of the cover body 74 and the bottom portion 72 is rotated while being reciprocated along the axis of the cover body 74 and scrapes are scraped to be installed below the discharge port 73. 79 to be dropped on.
[0005]
[Problems to be solved by the invention]
The unloader travels only when performing the discharge operation and is stopped at other times.However, in a cargo ship, the hull inclines in the front-rear direction due to a weight imbalance during loading work, and the hull is caused by waves during navigation. Repeatedly tilts back and forth or left and right. And when tilted in the front-rear direction, it will run down on the rail for traveling and cause troubles such as colliding with the wall at the front end or falling off, and when tilted in the left-right direction, it will fall to the lower side As a result, the trouble of dewheeling occurs.
[0006]
As countermeasures, it has been practiced to use a chain block, turnbuckle, etc. to connect the dispensing machine to a structural part such as a traveling rail and remove it prior to discharging the bulk material. Since it is a manual operation by an operator in a narrow space where a conveyor or the like is installed, it is extremely troublesome and difficult in both cases of coupling and removal. It may cause damage.
[0007]
Therefore, the present invention fixes the dispenser so that it will not run away or run out of wheel during non-bulk discharge work, or perform the operation of releasing prior to the discharge work without the operator, and firmly fix it. The present invention has been invented with the object of providing a dispensing device having a function that can be performed.
[0008]
[Means for Solving the Problems]
In the present invention, the cover body is installed above the discharge port provided over the entire length of the bottom wall of the storage tank in the ship, and the conveyor is installed below, while the cart of the dispenser is supported while running inside the cover body. In the bulk dispenser configured to drop the bulk material in the storage tank from the discharge port onto the conveyor by rotating the wheel along the upper surface of the bottom wall, the dispenser can be easily fixed or released without manual operation. And in order to fix firmly, it did as follows.
[0009]
In other words, the gripping machine and the fixing member of the clamp mechanism are separately installed on the dispensing machine that is the traveling body and the cover body that is the frame thereof, and when these are in the same position, the fixing member is sandwiched by the sandwiching piece and discharged. To fix. By disposing the clamp mechanism on both sides, the dispenser can be stably and firmly fixed. A discharge port provided over the entire length of the bottom wall of the storage tank in the ship; a cover body and a conveyor installed above and below the discharge port; and a dispenser having a carriage and a wheel. The wheel has a configuration in which loose particles in the storage tank are dropped from the discharge port onto the conveyor by rotating along the upper surface of the bottom wall while running while being supported inside the cover body. A holding part having a pressing surface facing each other and an engaging claw, a gripping machine having a motor for opening and closing the holding part, and a fixing member sandwiched between the holding part pieces. In a loose article dispensing apparatus having a cross section of a ship in which clamp mechanisms for fixing in position are located on both sides of the carriage, the fixed member is provided on each of the left and right traveling rails on the outer side. A rail having a length of suitably be the rail and parallel to the fixed sectional T shape on the upper surface, with the surface Pushing of the pinching piece is pressed against the sides of the head of the fixing member, the engagement When the claw enters the lower part of the head, the fixing member is sandwiched from both sides, and the dispenser is fixed in an engaged state engaged with each other.
[0010]
Further, the fixing member is a rail having an appropriate length arranged and fixed in parallel with the rail on the upper surface of a protruding edge provided outwardly on each of the left and right traveling rails, The parts facing each other at the front end are flat pressing surfaces, and hemispherical protrusions are provided at the center thereof, and the fixing member is formed in a thick plate shape or prismatic shape, and hemispherical depressions are formed on both side surfaces thereof. Provided, and when the pinching piece is rotated in the closing direction, the protrusion is fixed by being fitted into the recess.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Referring to the drawings, an embodiment of the present invention will be described. In FIGS. 1, 2, and 3, a dispensing machine 11 has wheels 13 on both the left and right sides, and is a box-shaped carriage equipped with a driving prime mover 14 and a wheel prime mover 15. 12 and a wheel 16 in which a large number of blades 18 curved in a spiral shape from a central boss 17 are projected at equal intervals in the circumferential direction. The wheel 16 projects below the carriage 12.
[0012]
The storage tank 1 has a bottom wall 2 composed of a hopper-like inclined portion 2a and a flat portion 2b which is the lowest portion between them, and a slit-like discharge is provided at almost the entire length of the flat portion 2b. An outlet 3 is provided.
[0013]
A cover body 5 having a triangular chevron at its end surface is installed over the entire length of the discharge port 3, and a traveling rail 6 made of H-shaped steel laid on the upper surface of the inwardly protruding edge 5 a at the lower end of the cover body 5. Wheels 13 of the carriage 12 are placed. The wheel 16 has a diameter substantially equal to the width of the flat portion 2b, rotates at a position slightly away from the upper surface of the flat portion 2b, and removes the loose matter in the storage tank 1 between the lower end of the cover body 5 and the flat portion 2b. Squeeze out toward the discharge port 3. Below the discharge port 3, a belt-type conveyor 8 is installed over the entire length thereof, and the bulk material scraped to the discharge port 3 falls onto the conveyor 8 and is transported onto the cargo ship deck. To the lower end of a vertical conveyor (not shown).
[0014]
The storage tank 1 and the conveyor 8 are provided on the freighter of the cargo ship almost from the bow to the stern, and the dispenser 11 reciprocates over the entire length of the storage tank 1.
[0015]
Brackets 22 extending in the vertical direction are fixed to the left and right sides of the carriage 12, and a cylinder tube 24 of a hydraulic cylinder, which is an opening / closing prime mover 23, is fixedly held on the bracket 22, and a piston rod protruding therefrom 25 extends downward.
[0016]
The proximal ends of the two links 26 and 27 are rotatably coupled to the distal end of the piston rod 25 by pins 28, and the proximal ends of the two sandwiching pieces 29 and 31 are attached to the distal ends of the links 26 and 27. The pins 30 and 32 are coupled to each other freely by rotation. The sandwiching pieces 29 and 31 are pivotably connected to each other by pins 33 supported on the bracket 22 at the center, and the pressing surfaces 29a and 31a and the engaging claws 29b and 31b that face each other at the tip part. have.
[0017]
The opening / closing prime mover 23 and the sandwiching pieces 29 and 31 constitute a gripping machine 21. When the piston rod 25 is moved in the protruding direction, the sandwiching pieces 29 and 31 rotate in a direction in which the tip portions are closed together. Move.
[0018]
On the other hand, a protruding edge 35 is provided outwardly on each of the left and right traveling rails 6 at an appropriate position in the traveling section of the dispenser 11, preferably near the end of conveying the bulk material by the conveyor 8. A fixing member 36 having a T shape and having an appropriate length is arranged and fixed in parallel with the rail 6, and the gripping machine 21 and the fixing member 36 constitute a clamp mechanism 37.
[0019]
The fixing member 36 is installed so as to be sandwiched between the front end portions of the sandwiching piece pieces 29 and 31 facing each other. Then, when the dispenser 11 is operated to discharge the bulk material from the storage tank 1, the piston rod 25 is placed in the retracted position, and the leading end portions of the sandwiching piece pieces 29 and 31 are moved as shown in FIG. It is expanded so as not to contact the fixing member 36.
[0020]
When the discharge of the bulk material is finished, the dispenser 11 is moved to the place where the fixing member 36 is installed, and the movement is stopped when the sandwiching pieces 29 and 31 reach the position where the fixing member 36 is sandwiched. Subsequently, when the piston rod 25 is moved in the protruding direction and the sandwiching pieces 29 and 31 are rotated in the direction in which the tip ends are closed, the pressing surfaces 29a and 31a are fixed members as shown in FIG. While being in pressure contact with both side surfaces of the head portion 36a, the engaging claws 29b and 31b enter below the head portion 36a. That is, the sandwiching pieces 29 and 31 sandwich the fixing member 36 from both sides, and fix the dispenser 11 in a meshed state engaged with each other, and are fixed by the clamp mechanisms 37 provided on both sides of the carriage 12. Thus, runaway due to tilting in the front-rear direction and falling due to tilting in the left-right direction are prevented, and the dispenser 11 can be fixed stably and firmly.
[0021]
Fixing of the dispenser 11 by the clamp mechanism 37 described above is performed after the operation is completed, so that it is not fixed even if the sandwiching pieces 29 and 31 reach the position sandwiching the fixing member 36 during the discharging operation. In addition, it is necessary to operate the opening / closing prime mover 23 after issuing a travel stop command for the dispenser 11 and to stop it at a position where the pinching pieces 29 and 31 sandwich the fixing member 36. For this purpose, an electric control circuit, a position detection sensor, or the like (not shown) is used.
[0022]
If the fixing member 36 is appropriately long as shown in the figure, there is an advantage that it can be reliably fixed even if there is a slight deviation in the stop position. In this case, instead of pinching and fixing the tip portions of the pinching piece pieces 29 and 31 to the fixing member 36 by engagement meshing, it is also preferable to fix them by providing them with permanent magnets and magnetic bodies and attracting them with magnetic force. One of the forms.
[0023]
Further, as shown in FIGS. 4A and 4B, the opposed portions of the tip portions of the sandwiching piece pieces 29 and 31 are flat pressing surfaces 29c and 31c, and hemispherical projections 29d and 31d are formed at the central portions thereof. The fixing member 36 is formed in a thick plate or prismatic shape, and hemispherical depressions 36b and 36b are provided on both side surfaces thereof, and the protrusion 29d is rotated when the sandwiching pieces 29 and 31 are rotated in the closing direction. , 31d may be fixed by fitting into the recesses 36b, 36b. However, since the fixed position is limited according to this embodiment, it is necessary to accurately control the stop position of the dispenser 11.
[0024]
Next, in the above embodiment, the gripping machine 21 of the clamp mechanism 37 is provided on the carriage 12 and the fixing member 36 is provided on the cover body 5, but the gripping machine 21 is provided on the cover body 5 and the fixing member 36 is provided on the carriage 12. Sometimes. The operation of the gripper 21 in this case is the same as described above.
[0025]
Although one clamp mechanism 37 is provided on each side of the carriage 12, two or more clamp mechanisms 37 may be provided and fixed more stably. Further, the opening / closing prime mover 23 of the gripper 21 is not limited to a fluid pressure cylinder, but can be an electric cylinder or an electromagnet having a linearly reciprocating piston rod, or the pinching members 29 and 31 can be rotated. It is possible to use one that rotates like an electric motor by interposing an appropriate motion conversion mechanism for the purpose.
[0026]
【The invention's effect】
As described above, according to the present invention having the clamping mechanism for fixing the dispenser at a predetermined position on both sides, the operation of fixing the dispenser at the time other than the bulk discharging operation is not performed manually by the operator. This is not only useful for reducing labor but also being able to be fixed stably and firmly so as not to run away or run out with unstable shaking.
[Brief description of the drawings]
FIG. 1 is a schematic plan view from which a cover body according to an embodiment of the present invention is removed.
FIG. 2 is a schematic end view as viewed from the left of FIG.
3A and 3B are diagrams for explaining the operation of the clamp mechanism in the embodiment shown in FIG. 1, wherein FIG. 3A is a front view in a released state, and FIG. 3B is a front view in a fixed state;
4A and 4B are partial views showing different embodiments of the clamp mechanism, in which FIG. 4A is a front view in a released state, and FIG. 4B is a front view in a fixed state.
FIG. 5 is a longitudinal sectional view for explaining the outline of a ship discharging apparatus.
6 is an enlarged side cross-sectional view of FIG.
[Explanation of symbols]
1 storage tank, 2 bottom wall, 3 discharge port, 5 cover body, 6 traveling rail, 8 conveyor, 11 dispensing machine, 12 carts, 16 wheels, 21 gripping machine, 23 opening / closing prime mover, 29, 31 pinching piece, 36 Fixing member, 37 clamp mechanism,

Claims (2)

A discharge port provided over the entire length of the bottom wall of the storage tank in the ship; a cover body and a conveyor installed above and below the discharge port; and a dispenser having a carriage and a wheel. The wheel has a configuration in which loose particles in the storage tank are dropped from the discharge port onto the conveyor by rotating along the upper surface of the bottom wall while running while being supported inside the cover body. A holding part having a pressing surface facing each other and an engaging claw, a gripping machine having a motor for opening and closing the holding part, and a fixing member sandwiched between the holding part pieces. In a bulk material dispensing apparatus for a ship, in which clamp mechanisms that are fixed in position are arranged on both sides of the carriage, the fixing member is provided with a protruding edge provided outwardly on each of the left and right traveling rails. Up Wherein a rail and a rail having a appropriately length parallel arranged fixed a T-shaped, with a surface Pushing of the pinching piece is pressed against the sides of the head of the fixing member, the engagement A bulk material dispensing apparatus for a ship, wherein the nail enters the lower part of the head, sandwiches the fixing member from both sides, and fixes the dispensing machine in a meshed state engaged with each other.   A discharge port provided over the entire length of the bottom wall of the storage tank in the ship; a cover body and a conveyor installed above and below the discharge port; and a discharging machine having a carriage and a wheel. The wheel has a configuration in which loose particles in the storage tank are dropped from the discharge port onto the conveyor by rotating along the upper surface of the bottom wall while running while being supported inside the cover body. A holding part having a pressing surface facing each other and an engaging claw, a gripping machine having a motor for opening and closing the holding part, and a fixing member sandwiched between the holding part pieces, In a bulk material dispensing apparatus for a ship, in which clamp mechanisms that are fixed in position are located on both sides of the carriage, the fixing member is provided with a protruding edge provided outwardly on each of the left and right traveling rails. Up A rail having an appropriate length arranged and fixed in parallel with the rail, and having a flat pressing surface at the opposed portion of the tip of the sandwiching piece, and a hemispherical protrusion at the center thereof The fixing member is formed in a thick plate shape or a prismatic shape, provided with hemispherical depressions on both side surfaces thereof, and fixed so that the projections fit into the depressions when the pinching piece is turned in the closing direction. A bulk material dispensing device for a ship.

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