JPS617144A - Screw reclaimer unit and inboard loading and unloading equipment using it - Google Patents

Abstract

PURPOSE:To make broad excavation performble, by installing a screw type excavating device in a platform so as to make it possible for roughing, while installing the said device, an excavated matter transporting device and a delivering device in a tiltable platform altogether. CONSTITUTION:A platform 6 is installed in the upper part of a crawer or a self- propelling device 2 tiltably in a direction right-angled with the traveling direction via plural hydraulic jacks being tightly attached to a crawer frame 2a. And, the platform 6 is installed free of swivel motion within a plane surface via a ring gear or a swivel mechanism being built in a base block 5 and a gear engaged with the former. Then, a screw type excavating device 9 is mounted on this platform 6 so as to make it possible for roughing with operation of a hydraulic cylinder 8. A transporting device 10 is installed in the central part of the excavating device 9, while a delivering device 15 consisting of a conveyor 15A supported turnably on the platform 6 is set up beneath the position of an outlet end part 10f of the said device 10.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a screw reclaimer device capable of excavating deposits and earth, transporting the excavated material, and discharging the transported material to a desired location. Regarding this, when unloading cargo such as coal and iron ore that has been loaded in the hold of a ship using the grab bucket device of the port unloading equipment, the above-mentioned screw reclaimer device is used in conjunction with the excavated material. The present invention relates to an inboard cargo handling device that allows the work efficiency of a grab bucket device to be improved by accumulating it directly under a hatch. After the screw reclaimer excavates deposits and earth, this system aims to streamline the processing of the excavated material by the processing means in the subsequent process, and also allows the screw reclaimer and grab bucket to be connected to the ship's hold. It is used in the field of onboard cargo handling equipment that can be used in conjunction with the ship to streamline the unloading of bulk cargo.

[Prior art]

Conventionally, cargoes such as coal, iron ore, and limestone, which are piled up in piles in the holds of ships, are unloaded using grab bucket devices of port unloading equipment. At that time, the grab bucket device is operated from outside the ship in a movable and traversal manner and unloads only the cargo directly below the hatch, so as the unloading progresses, the cargo directly below the hatch in the hold and the surrounding cargo A recessed portion having a drop is formed between the two.

Therefore, when a recess occurs, a trimming bulldozer is brought into the hold to transport the cargo between the hatch directly below and the interior wall of the hold to the recess.

However, when flattening a recessed area, the trimming bulldozer is often forced to work directly under the hatch, so the unloading operation must be carried out so that the work performed by the grab bucket device does not interfere with the bulldozer. They are suspended and have the work done to remove the dent. Therefore, there is a problem in that the unloading operation is hindered due to the interruption and hatch change, and the efficiency of unloading is reduced. Note that the trimming bulldozer carries out the work of flattening the depression by trapping deposits between the bulldozer main body and the earth removal plate at the tip thereof and moving backward. In particular, in the case of ``tub ships'' with increased cargo capacity, the width of the hold is large, so it takes a long time to remove the dents from the trimming bulldozer, which makes unloading the cargo even more inefficient. There is.

[Purpose of the invention]

The present invention was made to solve the above-mentioned problems.
The purpose is to provide a screw reclaimer that can excavate deposits and earth, transport the excavated material, deliver the transported material to a desired location, and streamline the processing of the excavated material in subsequent processes. In addition, it is possible to quickly flatten the depressions that occur directly under the hatch when unloading work is carried out using port equipment, such as a grab bucket device. To provide a highly efficient inboard cargo handling device that can continue the unloading work of cargo in a ship's hold without interruption by using a screw reclaimer that can perform the unloading work in a short time. It is.

[Structure of the invention]

The features of the present invention will be explained with reference to the drawings. As shown in FIGS. 1(a) to (C), the features of the present invention are as follows. The screw-type excavation means 9 and the transport means 10 for transporting the excavated material basket are provided so as to be luffable to
A screw reclaimer device in which a rotatable payout means 15 for discharging the conveyed material is provided on a tiltable plan 1-home 6, and the plant home 6 is rotatably mounted on a self-propelled means 2. It is 1.

As shown in FIGS. 3 and 4(a) to (C), the second invention includes the screw reclaimer device 1 of the first invention that is self-propelled in the hold 29, and the hatch 33 in the hold 29. This is an inboard cargo handling device 25 consisting of a grab bucket device 26 that moves up and down the hatch space 33A and unloads the excavated materials accumulated under the hatch 33 from the screw reclaimer device 1 to the outside of the ship.

〔Example〕

The present invention will be described below with reference to drawings of embodiments thereof.

The first invention includes a plurality of hydraulic jacks fixed to a crawler frame 2a above the crawler, which is the self-propelled means 2 of the screw reclaimer device 1, as shown in FIGS. 1(a) to 1(C). 3, a platform roller is mounted so as to be tiltable in a direction perpendicular to the traveling direction 4 of the self-propelled means 2. This platform 6 is rotatably attached to the self-propelled means 2 via a ring gear, which is a rotating mechanism (not shown) built into the base 5, and a gear that meshes with the ring gear. Then, the self-propelled means 2. Lasofijig can be freely moved in the direction of movement 4.
A screw excavation means 9 is mounted above the platform 6. The screw set excavating means 9 excavates the deposit and has a plurality of screws 9a installed in a driven shaft 10C, which will be described later, for accumulating the excavated material in the center thereof. At the center of the screw type excavation means 9, a transportation means 10 is provided.
A rake conveyor is provided, and this transportation means 10 is a conveyor consisting of a plurality of chains equipped with a plurality of rakes 10a.

The transport means 10 is driven by a drive shaft 1'Ob driven by a hydraulic motor 11. The plurality of screws 9a described above are driven by a driven shaft 10C driven by a drive shaft 10b of the transportation means 10 via a chain. The driven shaft 10C is supported by a bearing 10e fixed to the frame IOd of the transportation means IO. multiple screws 9
At the rear of a, there is a guide plate 9 that also serves as a scraper.
b is provided. On the upper surface 6a of the platform 6, a hydraulic pressure generator 12, its drive source 13, for example, a diesel engine, and a control unit 14 are mounted. On the upper surface 6a of the platform 6 immediately below the exit end 10f position of the transportation means 10, there is a conveyor 15A, which is a discharging means 15 for discharging excavated sediment to a desired location.
It is rotatably attached to the plant home 6 via a pivot ring 16A. A conhair 15B, which is a dispensing means 15, is attached to the unloading section 15a so as to be rotatable relative to the conhair 15A via a rotation ring 16B.

According to the embodiment described above, the excavated material can be delivered to a desired location by operating as follows.

Figures 1(a) to (C), Figures 2(a) and 2(b)
), first, the drive source 13 of the hydraulic pressure generator (hydraulic pump) 12 is activated and operated by the control unit 14 to generate high-pressure hydraulic pressure. A hydraulic motor 11 into which hydraulic oil from a hydraulic pump is introduced rotates a drive shaft 10b and drives a transportation means 10 having a rake 10a.
As the driven shaft 10c rotates as the chain of the rake conhair moves, the plurality of screws 9a installed in the driven shaft 10c rotate in the direction of arrow 17. As the screw 9a rotates, the screw 9a excavates the deposit, the excavated deposit is guided by the guide plate 9b, and the deposit is accumulated on the transportation means 10. Transportation means 1
0 conveys the deposit in the direction of arrow 18 and its exit end 10
At f, the conhair 1.5A, which is the dispensing means 15, is rotated by the rotation ring 16A and its conveying direction is set.
Transfer the deposit to. If necessary, the conveyor 15B is rotated via a rotating ring 16B on an extension of the conveyor 715A, and the excavated material is delivered from the end of the conveyor 15B. If it is desired to remove deposits in the vicinity of the screw-type excavation means 9, the conhair 15B is retracted from the conveyor 15A via the swivel ring 16B, and the conhair 1
The excavated material can be delivered from the delivery section 15a of 5Δ. In addition, for the excavation work of the screw type excavation means 9 and the transportation work of the transport means 10, the self-propelled means 2
It is necessary to cause the vehicle to travel in the traveling direction 4. Even if the traveling direction 4 of the self-propelled means 2 is changed by 90', the platform 6 can be fixed without rotating relative to the self-propelled means 2 via the turning mechanism built into the base 5. , the screw excavation means 9 and the transport means 10 can be operated. On the other hand, the upper surface 6a of the platform 6
The position of the dispensing means 15 (conveyor 15A) is
The selected desired dispensing, and if necessary to change depending on the location, is carried out via the swivel ring 16A within a range of about 120° on one side as shown in FIG. 1(b). Rotated into place.

Further, as shown in FIG. 2(a), the self-propelled means 2 is inched in the advancing direction 4, and the screw type excavating means 9 is moved toward the base 5 in the direction of arrows 19 and 20 [FIG. 1(c)]
[Refer to]). Then, by excavating the deposit alternately at the left and right positions indicated by the two-dot chain line, or while slewing only at -titer, the screw-type excavation means 9 targets a wide deposit with a width equal to or larger than @. excavation. that time,
In response to the above-described slewing operation, the dispensing means 15 (conhair 15A) is rotated via the swivel ring 16A (see FIG. 1(C)) so as to match the desired dispensing location. In addition, as shown in FIG. 2(b), when the self-propelled means 2 is grounded on the slope 21 of the deposit, the platform 6 is moved to the self-propelled means 2 through the expansion and contraction of the plurality of hydraulic jacks 3. On the other hand, tilt it and make it horizontal. That is,
By tilting in the direction of arrow 22 perpendicular to the direction of movement 4, it is possible to easily excavate the deposit, transport it, and pay it out, and after the excavation, the deposit can be leveled and excavation can be continued on that surface. .

As shown in FIG. 3, the grab bucket device 26 of the inboard cargo handling device 25 of the second invention is used to collect coal, iron ore, etc., which has been loaded into a cargo hold 29 of a ship 28 docked at a port quay 27. This is a port unloading facility for unloading deposits 30 such as limestone overboard, and is installed close to the port quay 27. This grab bucket device 26 runs on a rail 31 parallel to a line connecting the bow of the ship 28 and the pirate, and is capable of moving across a boom 32 protruding in a direction perpendicular to the rail 31. As shown in a), hold 2
The hatch 33 is installed in the upper part of the hatch 9 so as to be movable in the vertical direction of the space 33A. Further, as shown in FIG. 3, the grab bucket device 26 is provided with a hopper 34 for receiving and taking cargo after being unloaded outside the vessel. As shown by the two-dot chain line 30A in Figures 4(a) and (b), the hold 2
As unloading by the grab bucket device 26 progresses from the fully loaded state in the cargo compartment 9, the deposits 30 directly below the hatch 33 decreases, creating a drop between the cargo directly below the hatch 33 and the internal wall 29a of the hold 29. , a concave portion 35 is formed by the inclined surface 30a and the horizontal surface 30c shown by dotted lines. at the time,
The screw reclaimer device 1 of the first invention is put into the hold 29.

Therefore, the screw reclaimer device 1 is shown in Fig. 4 (
Inside the hold 29 shown in C), the deposits 3 move on their own in the direction of arrow 36 outside the danger zone surrounded by a boundary line 39, which will be described later.
0 is excavated and the excavated material is discharged into the above-mentioned concave portion 35 to eliminate the excavated material, and the entire surface of the deposit 30 of the cargo is constantly
Provision is made for systematic unloading of the grab bucket device 26 by maintaining a flattened condition and allowing deposits 30 to accumulate directly beneath the hatch 33.

According to the above-described embodiment, the inboard cargo handling device is operated in the following manner so that the unloading operation of the loaded cargo can be performed continuously without interruption.

As shown in FIG. 3, when a ship 28 berths at a port quay 27, the fully loaded cargo in each hold 29 is unloaded only by the grab bucket device 26. Before that, the grab bucket device 26 runs on rails 31, for example the boom 32
It stops above the hatch 33 provided at the top of the. The grab bucket device 26 runs through the boom 32 and grabs the hatch 3.
3, and as shown in FIGS. 4(a) and 4(b), the cargo, which has become deposits 30 in the hold 29, is unloaded sequentially from above through the hatch 33 of the hold 29. Let's do it. As the cargo pile 30 is carried out to the hopper 34 (see FIG. 3), the hatch space 33A of the hatch 33
The space in the hold 29 below the hatch space 33A gradually expands, and the cargo is captured and unloaded by moving vertically in the hatch space 33A.

Note that, during unloading, a concave portion 35 is formed between the horizontal surface 30C and the inclined surface 30a having a drop between the internal wall 29a of the hold 29 and the deposit 3o directly below the hatch 33.

Even if only the deposits 30 in the concave portion 35 are unloaded any further, the deposits 30 between the inner wall surface 29a of the hold 29 and directly below the hatch 33 will not be unloaded.
If a concave portion 35 occurs as shown in (b), it is necessary to eliminate the concave portion and flatten the entire surface of the deposit 30. The screw reclaimer device I of the invention No. 1 was installed in the hold 2.
Insert within 9. The screw reclaimer device 1 is used to flatten the deposit 3o, and the onboard cargo handling device 25 that uses both the grab bucket device 26 and the screw reclaimer device 1 is used to unload the cargo, and the grab bucket device 26 is interrupted. Because continuous work is performed without
It can demonstrate its comprehensive functions. Note that once the unloading is completed, the cargo in other holds 29 is unloaded.

The work of flattening the deposit 30 by the screw reclaimer device 1 begins with flattening the horizontal surface 30 forming the above-mentioned concave portion 35.
The screw reclaimer 1 is grounded on the same plane as C. The slope 30a is cut down and the cargo is transferred to the straight port of the hatch 33 and flattened.

The screw reclaimer 1 collects flattened deposits 30
Furthermore, when the self-propelled means 2 is operated in conjunction with the inching of the self-propelled means 2 and the screw-type excavating means 9 is slewing, as shown in FIG. 4(C), the screw-type excavating means Wide excavation can be performed on deposits 30 having a width of 9 or more. That is, the deposits 30 in the M and N parts between the hatch 33 and the internal wall 29a of the hold 29 are moved along the line 37 by running twice in the direction of the arrow 36 in the former case, and once in the same direction in the latter case. It is possible to perform wide excavations.

At this time, in the former two excavations, the conveyors 15A and 15B of the delivery means 15 are used at the same time, or the conveyor 15B is retracted and only one conveyor 1.5A is used. In the latter case, only one conveyor 15A is used. The excavated material can be delivered in the direction of arrow 38 via the transportation means 10 and the delivery means 15, and a location effective for eliminating the depression 35 can be selected and delivered to flatten it. In addition, as mentioned above, the grab bucket device 2
6 performs the unloading operation inside the rectangle of the danger zone formed by the boundary line 39, which will be described later, so the screw reclaimer device 1 removes the deposit 30 for eliminating the concave portion 35.
The flattening work can be carried out in an orderly manner and without entering the danger zone.As shown in Fig. 4(C), the solid line rectangle is the hatch 33, and the two-dot chain line inside it forms the flattening work. The rectangle is the workable range of the grab bucket device 26, and the two-dot chain line is the boundary line 39 of the danger zone that prevents the screw reclaimer device 1 from entering.

Since the screw reclaimer device 1 performs flattening work only between the outside of the boundary line 39 of the danger zone and the inner wall 29a of the hold 29, the grab bucket device 26 for carrying out work and the screw reclaimer device 1 for flattening work are used. Avoid contact with and collisions. Therefore, the unloading operation by the grab bag sorting device 26 is continued without interruption, and the unloading operation by the inboard cargo handling device 25 can be performed with high efficiency. Further, as described above, when the grab bucket device 26 discharges the excavated material to the new concave portion 35 to eliminate the concave portion 35, the fifth method for discharging the excavated material is as follows.
As shown in the figure, by forming a pile 40 in which the concave portion 35 is conversely raised with the deposits 30, there is an effect that the unloading operation of the inboard cargo handling device 25 can be further facilitated. In addition, corresponding to the working speed of the grab handle 1-device 26,
Screw type excavation means 9 of screw reclaimer device 1
Since the height of the pile 40 can be freely determined by determining the depth of luffing, the inboard cargo handling device 25 has the effect of allowing smooth unloading work. Note that even in the case of a "trough boat" with increased cargo capacity and a large width, the inboard cargo handling device 25 can sufficiently efficiently unload the cargo.

〔Effect of the invention〕

As explained in detail above, in the first invention, the screw type excavation means for excavating and accumulating deposits is provided so as to be ranofing with respect to the platform, and the screw type excavation means and the transportation for transporting the excavated material are provided. Since the screw reclaimer device is provided with a tiltable platform, and the platform is rotatably attached to the self-propelled means, the excavated material can be removed. The excavated material can be discharged by freely selecting the desired location. moreover,
The self-propelled means can easily excavate the deposit even when excavating on the slope of the deposit, and the self-propelled means can be inched and the screw-type excavation means can be slewed from side to side. It is possible to perform wide excavation in deposits having a width greater than the width of the excavation means.

In the second invention, instead of the conventional trimming bulldozer, an inboard cargo handling device is used that uses both the screw reclaimer device and the grab bucket device of the first invention, so that the screw reclaimer device and the grab bucket device are used together. Since mutual contact and collision accidents can be avoided during work, it is possible to safely unload cargo, and work on the grab bucket device can be continued without interruption. Therefore, highly efficient unloading work is possible, and the time required for unloading can be significantly shortened.

[Brief explanation of the drawing]

Fig. 1(a) is a front view of the screw reclaimer, Fig. 1(b) is a view taken along the line 1l-II in Fig. 1(a), and Fig. 1(C) is a m in Fig. 1(b). - m-line arrow view, Figures 2 (a) and (b) are operating state diagrams of the screw reclaimer device,
3 is an overall plan view of the onboard cargo handling equipment, FIG. 4(a) is an enlarged cross-sectional view taken along the line TV-IV in FIG. 3, and FIG. 4(b) is an enlarged cross-sectional view taken along the line V-V in FIG. 3. Figure 4 (C) is the V in Figure 4 (a).
The l-VI line arrow view, FIG. 5 is a state diagram of the pile. ■-Screw reclaimer device, 2-Self-propelled means, 6-Plant home, 9-Screw excavation means, 10-Transportation means, 15-Unloading means, 25-Inboard cargo handling equipment, 26-
Grab bucket device, 29-ship hold, 30-bank/seed, 3
3-Hatsuchi, 33A-Hatsuchi spatial patent applicant Kawasaki Heavy Industries, Ltd. (and one other person) agent
Patent Attorney Katsutoshi Yosso (one idiot) Figure 2 (q) Figure 2 (b) Figure 3 Figure 5 Figure 4 (2) Figure 4 (b) Figure 4 (C)

Claims (2)

[Claims] (1) A screw-type excavation means for excavating and accumulating deposits is provided so as to be luffable to the platform, and the screw-type excavation means, a transportation means for conveying the excavated material, and a means for transporting the excavated material are rotatable to discharge the transported material. 1. A screw reclaimer, wherein the dispensing means is provided on a tiltable platform, and the platform is rotatably mounted on a self-propelled means. (2) A screw-type excavation means for excavating and accumulating deposits is provided so as to be luffable to the platform, and the screw-type excavation means and a transportation means for transporting the excavated material are rotatable to discharge the transported material. A screw reclaimer device is provided on a tiltable platform, and the platform is rotatably attached to a self-propelled means, and a screw reclaimer device that is self-propelled within the hold, and a screw reclaimer that moves up and down the hatch space of the hold. An inboard cargo handling device characterized by comprising: a grab bucket device for unloading excavated material accumulated under a hatch of the claimer device to the outside of the ship;