JP5480523B2 - Earth and sand loading device - Google Patents

Description

  The present invention relates to an earth and sand loading device for loading earth and sand on a transport ship.

  A belt conveyor may be used to load earth and sand on a transport ship. Such a belt conveyor is generally fixed in a state of protruding from a quay.

  It is necessary to load earth and sand into the transport ship at the center of the transport ship to prevent the transport ship from tilting and overturning. However, when a belt conveyor fixed to a quay is used, the overhanging length of the belt conveyor is fixed, so that usable transport ships are limited.

  Therefore, Patent Document 1 discloses a ship loader that enables the shuttle conveyor to move on the quay via a traveling frame arranged on the quay and transport the earth and sand to the center position of a carrier ship moored on the quay. Has been.

  The ship loader is configured to appropriately adjust the position of the center of gravity of the apparatus by moving the counterweight in the direction opposite to the moving direction in conjunction with the movement of the shuttle conveyor.

JP-A-8-259181

  However, the ship loader described in Patent Document 1 is manufactured with a complicated structure such that the shuttle conveyor itself needs to be strong enough to run, and the shuttle conveyor and the counterweight are moved in opposite directions. The cost was expensive.

  An object of the present invention is to solve the above-described problems, and it is an object of the present invention to provide an earth and sand loading device that can be manufactured at a low cost and is not limited to a usable transport ship.

In order to solve the above problems, the present invention is a earth and sand loading device for transporting earth and sand from a earth and sand hopper to a transport ship moored on a quay, and a traveling rail laid in a direction intersecting the quay, A carriage traveling on the traveling rail; a conveyor installed on the carriage; and a counterweight installed on a proximal end side of the carriage; the proximal end of the conveyor falls from the earth and sand hopper A load receiving member for guiding the earth and sand on the conveyor belt of the conveyor is fixed, the load receiving member has a length equivalent to the moving distance of the carriage, and the base end of the conveyor is the earth hopper And the tip of the conveyor overhangs from the quay, and the overhang length of the conveyor from the quay is adjusted by moving the carriage forward or backward. It is characterized in that.

  According to this earth and sand loading apparatus, since it is a simple structure, it can be manufactured at low cost. Moreover, since the overhang length of a conveyor is adjusted according to the shape of a carrier ship, the carrier ship which can be utilized is not limited.

  If a telescopic shatter-proof chute is suspended at the tip of the conveyor, even if the height of the deck of the carrier changes due to changes in the tide level or the weight of the sand, it will continue to prevent the sand from scattering. It can be performed.

  If the earth and sand loading device has a gantry constructed across the quay, and the traveling rail protrudes from the quay to the carrier side through the gantry, it can be used for a large carrier. It becomes possible.

  If a support is erected on the carriage and the tip of the conveyor is suspended via the support, the conveyor can be prevented from falling.

  If the tip of the conveyor is equipped with a detecting means for detecting the positional relationship with the transport ship or the amount of earth and sand loaded on the transport ship, the length of the conveyor overhang, the length of the anti-scattering chute, etc. are automatically set. It becomes possible to control.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to manufacture the earth and sand loading apparatus which enabled it to respond | correspond to a carrier ship at low cost.

It is a side view which shows the installation condition of the earth and sand loading apparatus which concerns on suitable embodiment of this invention. It is a figure which shows the detail of the earth and sand loading apparatus of FIG. 1, Comprising: (a) is a side view, (b) is a front view.

  Preferred embodiments of the present invention will be described in detail with reference to the drawings.

  As shown in FIG. 1, the earth and sand loading device 1 according to the present embodiment conveys earth and sand from an earth and sand hopper 3 provided on the upper part of the quay 2 to a transport ship 4 moored on the quay 2. In the present embodiment, the earth and sand loading device 1 and the earth and sand hopper 3 are supported by the gantry 5 constructed in a state of straddling the quay 2.

  The earth and sand loading device 1 includes a traveling rail 10, a carriage 20, a conveyor 30, and a counterweight 40.

As shown in FIG. 1, the traveling rail 10 is laid in a direction intersecting the quay 2 as a track of the carriage 20.
The traveling rail 10 is laid on the gantry 5 and extends from the quay 2 to the sea side.

  As shown in FIG. 2A, stoppers 11 and 11 are formed before and after the traveling rail 10 to prevent the carriage 20 from falling from the traveling rail 10.

As shown in FIG. 2, the carriage 20 is disposed so as to be able to travel on the traveling rail 10 and supports the conveyor 30. The carriage 20 moves in the direction intersecting the quay 2 by traveling on the traveling rail 10.
The carriage 20 includes a carriage main body 21, wheels 22, a drive motor 23, and a support column 24.

  The carriage main body 21 is configured to be able to mount the conveyor 30, the counterweight 40, and the like. Although the structure of the cart body 21 is not limited, it may be formed into a plate shape by combining, for example, mold steel.

  The carriage main body 21 supports a wheel 22 that travels on the traveling rail 10 in the lower part, and is configured to be able to move forward or backward along the traveling rail 10.

  As shown in FIGS. 2A and 2B, four wheels 22 are arranged at the front end portion and the rear end portion of the carriage main body 21, for a total of four wheels 22. The number and arrangement of the wheels 22 are not limited as long as the carriage main body 21 can be supported.

As shown in FIG. 2A, the wheel (rear wheel) 22 provided on the base end side is connected to the drive motor 23 via an endless belt 23 a and is rotated by the power of the drive motor 23. Is configured to do.
The carriage 20 moves forward or backward along the rail 10 as the wheels 22 are rotated by the power of the drive motor 23.

  The drive motor 23 is fixed to the base end side of the carriage main body 21, but the drive motor 23 may be disposed on the distal end side, and the installation location of the drive motor 23 is not limited. The drive motor 23 may be coupled to the sea-side wheel 22. Furthermore, the movement of the conveyor 30 is not necessarily performed by the power of the drive motor 23, and the drive motor 23 may be omitted.

  As shown in FIG. 2A, the support column 24 is erected at the tip of the carriage 20 (the carriage main body 21). As shown in FIG.2 (b), in this embodiment, the support | pillars 24 and 24 are arrange | positioned on either side across the conveyor 30. As shown in FIG. In addition, although the material which comprises the support | pillar 24 is not limited, in this embodiment, it comprises with shape steel.

  As shown in FIG. 2A, the first tensile member 25 and the second tensile member 26 are fixed to the upper end of the column 24.

The first tension member 25 has one end fixed to the tip of the conveyor 30 and the other end fixed to the upper end of the support column 24.
Thereby, the first tension member 25 holds the conveyor 30 protruding from the tip of the carriage 20.

  One end of the second tension member 26 is fixed to the upper end of the support column 24, and the other end is fixed to the base end portion of the carriage 20. The 2nd tension material 26 is supporting the support | pillar 24 so that the support | pillar 24 may not fall to the sea side by the earth and sand mounted on the conveyor 30 and the conveyor 30. FIG.

  Although the material which comprises the 1st tension material 25 and the 2nd tension material 26 is not limited, In this embodiment, it comprises with a wire or a steel bar.

  The conveyor 30 is installed in the cart 20 and conveys the earth and sand stored in the earth and sand hopper 3 to the transport ship 4.

  As shown in FIG. 1, the conveyor 30 is configured to have a length in which a distal end portion projects from the carriage 20 to the sea side, and a proximal end portion is located directly below the earth and sand hopper 3. That is, the conveyor 30 is configured such that the base end portion is located immediately below the earth and sand hopper 3 and the tip is located immediately above the carrier ship 4, so that the earth and sand stored in the earth and sand hopper 3 can be transferred to the carrier ship 4. It is comprised so that it may convey. Further, the conveyor 30 moves together with the carriage 20 so that the overhang length on the sea side changes.

  As shown in FIG. 2A, the conveyor 30 includes a frame 31, a conveyance belt 32, and a drive device 33.

The frame 31 is a beam-like structural material that supports the conveyor belt 32, and in this embodiment, is configured by combining steel materials in a truss shape.
The front end portion of the frame 31 projects to the sea side from the front end of the conveyance belt 32.

  The frame 31 is fixed to the carriage 20 (the carriage main body 21) at the base end portion and the intermediate portion, and the tip end portion is suspended by the support column 24 via the first tension member 25.

  A load receiving member 34 that guides the earth and sand dropped from the earth and sand hopper 3 directly or via other conveying means onto the conveying belt 32 is fixed to the base end portion of the frame 31. In the present embodiment, the load receiving member 34 is formed to have a length corresponding to the rear side (opposite to the sea) from the support belt support 24, but the shape of the load receiving member 34 is not limited.

  The load receiving member 34 is a cylindrical member having a rectangular shape in plan view that is open at the top and bottom. As shown in FIGS. 2A and 2B, the load receiving member 34 is formed of four plate members arranged so as to surround the front, rear, left and right above the base end portion of the transport belt 32. The plate members facing each other are arranged such that the distance between them decreases from the top to the bottom.

Further, the load receiving member 34 has a length equivalent to the moving distance of the carriage 20 so that the earth and sand from the hopper 3 can be guided onto the conveying belt even if the conveyor 30 moves back and forth. Is formed.
In addition, the shape dimension of the cargo receiving member 34 is not limited .

  An input port 31 a is formed at the front end portion (sea end portion) of the frame 31 so that the earth and sand transported by the transport belt 32 can be thrown into the transport ship 4. Note that the insertion port 31a may be formed as necessary, and may be omitted when the conveyance port 32 is directly introduced into the transport ship 4.

A scattering prevention chute 35 is suspended from the tip of the frame 31.
The scattering prevention chute 35 is a cylindrical member that guides the earth and sand falling from the insertion port 31a to the transport ship 4 without scattering. In the present embodiment, the scattering prevention chute 35 is configured to be extendable and retractable, and the length thereof is set according to the sea tide level, the ups and downs of the transport ship 4 due to the weight of the earth and sand, the height of the earth and sand loaded on the transport ship 4 and the like. adjust.

  In the present embodiment, the anti-scattering chute 35 is constituted by a plurality of cylinders 35a, 35a,. The cylindrical body 35a has an inverted truncated cone shape, and can enter the lower cylindrical body 35a. The configuration of the anti-scattering chute 35 is not limited.

  In the present embodiment, it is assumed that the chute length adjusting device 35b that adjusts the length of the anti-scattering chute 35 is provided, and the length of the anti-scattering chute 35 is mechanically adjusted.

  The chute length adjusting device 35b includes a wire having one end fixed to the lowermost cylinder 35a of the anti-scattering chute 35 and a wire winding unit having the other end fixed. The anti-scattering chute 35 rises by lowering the cylindrical body 35a by winding the wire, contracts by overlapping the upper and lower cylindrical bodies 35a, and lowers the lowermost cylindrical body 35a by unwinding the wire. Elongate. Note that the length of the anti-scattering chute 35 may be adjusted by human power. Moreover, what is necessary is just to arrange | position the scattering prevention chute | shoot 35 as needed. Further, the anti-scattering chute 35 is not necessarily configured to be extendable and contractible.

The conveyor belt 32 conveys the earth and sand discharged from the earth and sand hopper 3 to the input port 31a.
As shown in FIG. 2A, the transport belt 32 is wound endlessly on rotation shafts 32a and 32a that are pivotally supported on both ends of the frame 31, respectively.

  The conveyor belt 32 conveys the earth and sand placed thereon by rotation of the rotating shaft 32a by the power of the driving device 33 to the charging port 31a.

The upper part of the conveying belt 32 (in the present embodiment, the sea side from the support 24) is covered with a cover member 37 to prevent the earth and sand from being scattered during conveyance.
On the other hand, the upper part of the base end portion of the conveyor belt 32 is released, and is configured to receive earth and sand from the earth and sand hopper 3.

  The driving device 33 is fixed on the frame 31 via a support frame and applies power to the conveyor belt 32. In the present embodiment, the driving device 33 and the rotary shaft 32a are connected via an endless belt 33a, whereby the power of the driving device 33 is applied to the conveyor belt 32. In addition, the installation location of the drive device 33, the connection method with the conveyance belt 32, etc. are not limited, It is possible to set suitably.

  In the vicinity of the insertion port 31 a at the tip of the frame 31, a detection means 36 is installed. The detection means 36 measures the positional relationship between the transport ship 4 and the conveyor 30.

  In the present embodiment, as the detection means 36, the first sensor that detects the separation distance between the center position of the transport ship 4 and the insertion port 35a, and the separation between the conveyor 30 and the upper surface of the transport ship 4 (the earth and sand placed on the transport ship 4). And a second sensor for detecting the distance. The configuration of the detection means is not limited. Further, the detection means 36 may be installed as necessary, and may be omitted.

In the present embodiment, it is assumed that the detection means 36 is interlocked with the drive motor 23 and the chute length adjusting device 35a.
Thereby, it is possible to automatically control the movement of the carriage 20 and the adjustment of the length of the anti-scattering chute 35 according to the measurement result of the detection means 36.

  That is, the drive motor 23 can be driven according to the positional relationship with the transport ship 4 measured by the detection means 36 (first sensor). Although the apparatus which comprises a 1st sensor is not limited, For example, an image recognition sensor can be used. Therefore, it is possible to automatically adjust the overhang length of the conveyor 30 according to the size of the transport ship 4. The adjustment of the drop position may be performed by an operator according to the situation of the fall of earth and sand.

  Further, the length of the anti-scattering chute 35 can be automatically adjusted according to the measurement result of the separation distance between the conveyor 30 and the transport ship 4 (the earth and sand placed on the transport ship 4) by the detection means 36 (second sensor). it can. Although the apparatus which comprises a 2nd sensor is not limited, For example, an ultrasonic distance measuring sensor can be used. The length of the anti-scattering chute 35 may be adjusted manually by an operator's visual observation.

  The counterweight 40 is fixed to the base end portion of the carriage 20 as shown in FIG. The counterweight 40 has a weight corresponding to the weight of the conveyor 30 and the earth and sand conveyed by the conveyor 30, and prevents the carriage 20 from falling due to a moment acting on the conveyor 32.

  As shown in FIG. 1, the quay 2 is a mooring facility for a transport ship 4 formed in a harbor. In this embodiment, the quay 2 is constituted by an inverted T-type retaining wall. Moreover, the quay 2 is supported by the piles 2a and 2a. The form of the quay 2 is not limited.

The earth and sand hopper 3 is a facility for temporarily storing earth and sand carried out by the transport ship 4.
The earth and sand hopper 3 is provided with an opening / closing door 3a at the lower part, and opening the opening / closing door 3a allows the earth and sand stored therein to fall directly on the conveyor 30 directly below or via another belt conveyor or the like. It is configured.

  The transport ship 4 is a ship that transports earth and sand conveyed from the earth and sand hopper 3 via the conveyor 30. The size, type, and the like of the transport ship 4 are not limited, and can be appropriately selected and used.

The gantry 5 supports the earth and sand loading device 1.
As shown in FIG. 1, the gantry 5 includes a receiving beam 5a and leg portions 5b.

The receiving girder 5a is arranged so as to straddle the upper part of the quay 2 and protrudes to the sea side to support the traveling rail 10 from below.
The receiving beam 5a is made of H-shaped steel as shown in FIG. The member which comprises the receiving beam 5a is not limited.

  The receiving girder 5a protrudes to the sea side from the quay 2 but is supported by the leg part 5b installed on the sea side from the quay 2 so that it does not fall over due to the weight of the carriage 20. .

The legs 5b are support pillars of the gantry 5 and are respectively disposed on the land side and the sea side of the quay 2 as shown in FIG.
In addition, the structure of the leg part 5b is not limited.

  In the earth and sand loading device 1, the overhang length of the conveyor 30 from the quay 2 is adjusted by the carriage 40 moving forward or backward. Therefore, the overhang length of the conveyor 30 can be adjusted according to the size of the transport ship 4, and earth and sand can be loaded in the center of the transport ship 4.

  Moreover, since the earth and sand loading apparatus 1 does not have a complicated mechanism and is simple, it is inexpensive.

  Since it is configured to automatically adjust the overhang length of the conveyor 30 and the length of the anti-scatter chute 35 via the detection means 36, the workability is excellent.

  Since the scattering prevention chute 35 expands and contracts, the earth and sand loading device 1 can prevent the earth and sand from scattering by adjusting the length according to the sea tide level, the ups and downs of the transport ship 4, and the like.

  The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments, and it goes without saying that the above-described constituent elements can be appropriately changed without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 1 Earth and sand loading device 2 Quay wall 3 Earth and sand hopper 4 Carrier ship 5 Gantry base 10 Travel rail 20 Carriage 24 Strut 30 Conveyor 35 Scatter prevention chute 36 Detection means (detection means)
40 counterweight

Claims (5)

An earth and sand loading device that transports earth and sand from a earth and sand hopper to a carrier moored on a quay,
A traveling rail laid in a direction intersecting the quay,
A carriage traveling on the traveling rail;
A conveyor installed on the carriage;
A counterweight installed on the base end side of the carriage,
A load receiving member for guiding the earth and sand dropped from the earth and sand hopper onto the conveyor belt of the conveyor is fixed to the base end portion of the conveyor,
The load receiving member has a length equivalent to the travel distance of the carriage,
The base end of the conveyor is located directly below the earth and sand hopper and the front end of the conveyor overhangs from the quay,
The earth and sand loading device, wherein the overhang length of the conveyor from the quay is adjusted by moving the carriage forward or backward.   The earth and sand loading device according to claim 1, wherein a telescopic shatter-proof chute is suspended from the tip of the conveyor. It has a gantry built across the quay,
The earth and sand loading device according to claim 1 or 2, wherein the traveling rail projects from the quay to the transport ship side through the gantry. A prop is erected on the carriage,
The earth and sand loading device according to any one of claims 1 to 3, wherein a front end portion of the conveyor is suspended through the support column.   5. The detection device according to claim 1, further comprising: a detecting unit configured to detect a positional relationship with the transport ship or an amount of earth and sand loaded on the transport ship at a front end portion of the conveyor. Earth and sand loading device.

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