JPH04323118A - Cargo handling by unloader - Google Patents

Abstract

PURPOSE:To enable an excess area to be used for other facilities by making an exclusive area possessed by an unloader on a quay small. CONSTITUTION:In an unloader cargo handling method to handle bulk cargoes and/or the like on a vessel 2 which is brought alongside a quay by using an unloader 1 which has a boom 5 arranged on a travel frame 4 so as to be put in slewing motion freely and has a bucket conveyor 6 arranged in the tip part of its boom 5, the method has a characteristic that after the bucket conveyor 6 is inserted into the vessel 2 on which cargo handling is to be carried out, the travel frame 4 is moved in the vessel breadth direction, and the boom 5 is also put in slewing motion, and while moving the bucket conveyor 6 in the vessel length direction, the cargo handling can be carried out.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cargo handling method using an unloader for handling bulk materials and the like from a berthed ship using a bucket conveyor hanging from the tip of a rotating boom of a traveling frame.

0002

[Prior Art] In an unloader that unloads bulk materials such as coal and ore, or powder, etc., loaded onto a ship, the bulk materials inside the ship are continuously scraped off by a circulation-driven bucket conveyor before being unloaded. An unloader is used.

An example of a conventional unloader is shown in FIG. In the figure, 1 is an unloader, and this unloader 1 has a traveling frame 4 movably installed on a mooring quay 3 where a ship 2 is moored, and a boom 5 is installed on the traveling frame 4 so as to be able to swing and raise. A bucket conveyor 6 is suspended from the tip of the unloader 1.
When handling bulk goods etc. loaded on Vessel 2,
After the bucket conveyor 6 is inserted into the ship 2, the traveling frame 4 is moved in the ship's direction, and cargo handling is performed while the bucket conveyor 6 is moved in the ship width direction and the ship's ship direction.

0004

[Problems to be Solved by the Invention] However, when the above-mentioned unloader 1 is used to handle cargo on a small ship, since the hold is small, the bucket conveyor 6 can be moved in the direction of the ship's ship by simply moving the traveling frame 4, and the cargo can be handled. Therefore, there is a problem that the turning function of the boom 5 is not fully demonstrated.

Furthermore, since the running rail 7 for running the running frame 4 must be laid on the mooring berth 3 along the longitudinal direction of the moored vessel 2, the area occupied by the mooring berth 3 is large. Therefore, there is a problem that it becomes an obstacle when constructing other facilities on the mooring quay 3.

[0006] Furthermore, in a plant factory that is in operation, quay wall construction must be carried out in a short period of time, but there is a problem in that the amount of work required to install the unloader is large and the construction period becomes long.

SUMMARY OF THE INVENTION Therefore, in order to solve the above-mentioned problems, the present invention provides a cargo handling method for an unloader that can reduce the area occupied by the mooring quay and fully utilize the boom's turning function. be.

[0008]

[Means for Solving the Problems] In order to achieve the above object, the present invention provides an unloader in which a boom is rotatably provided on a traveling frame and a bucket conveyor is provided at the tip of the boom, and is capable of handling bulk goods from a ship berthed. In the cargo handling method of an unloader for cargo handling, etc., after inserting the bucket conveyor into a ship to be loaded, the traveling frame is moved in the width direction of the ship, and the boom is rotated to move the bucket conveyor in the ship's direction. It was designed to carry out cargo handling.

[0009]

[Operation] According to the above configuration, when the bucket conveyor is moved in the direction of the ship's ship for cargo handling, the boom is rotated while moving the traveling frame in the ship's width direction, so that the unloader is moved in the ship's direction as in the past. The exclusive area of the mooring wharf can be made smaller than that of a type that runs on the ground, and the surplus area can be used for other facilities.

[0010] Furthermore, when carrying out cargo handling on a small boat, since the boom is rotated in conjunction with the travel of the traveling frame, the boom's rotation function can be fully utilized.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the accompanying drawings.

FIGS. 2 and 3 illustrate an example of an unloader for carrying out the method of the present invention.

In the figure, reference numeral 1 denotes an unloader, and the unloader 1 has a boom 4 mounted on a traveling frame 4 so as to be able to rotate and raise and lower, and a bucket conveyor 6 at the tip of the boom 4.

Specifically, the unloader 1 is installed on a ship 2.
A running frame 4 is provided on the mooring quay 3 where the mooring is moored so as to be movable in the width direction of the ship.
A revolving frame 9 is rotatably provided via the swiveling frame 9, and the boom 5 is mounted on the revolving frame 9 so as to be movable up and down.

A substantially L-shaped top support frame 10 is connected to the tip of the boom 5, and a conveyor for conveying unloaded loads is connected between the top support frame 10 and the swing frame 9. 11 is provided, and this conveyor 11 and the boom 5 are provided with rotation pins 12, 13, 14,
The boom 5 and the conveyor 11 are integrally raised and lowered by the undulation cylinder 16, and the top support frame 10 is held horizontally by following the undulation. It has become.

[0016] The top support frame 10 also includes:
An elevator casing 17 that accommodates a bucket conveyor 6 is suspended therein so as to be able to rotate freely, and this elevator casing 17 is provided with a bent portion 17a so as to be bent below the top support frame 10, and the upper end of the elevator casing 17 is provided with an upper casing 18, and a driving sprocket 19 for driving the bucket conveyor 6 is provided within the upper casing 18, and this driving sprocket 19 is connected to a driving device 20.

At the lower end of the elevator casing 17, a scraping portion 2 of the bucket conveyor 6 extending horizontally is provided.
1 is provided, and at both ends of the scraping part 21,
A driven sprocket 22 is rotatably provided, and the bucket conveyor 6 is spanned between the driven sprocket 22 and the driving sprocket 19 so as to be driven in circulation. The load is scraped and stored, ascends within the elevator casing 17, and is discharged to the conveyor 11 within the upper casing 18.

The revolving frame 9 is also provided with a chute 23 for discharging the load from the transport conveyor 11 downward. A fixed conveyor 24 is provided for transporting loads, and a ground conveyor 25 is provided on the ground side for transporting the loads from the fixed conveyor 24 to a predetermined position on land.

By the way, in this embodiment, the mooring quay 3
As shown in FIG. 1, the unloader 1 is constructed to protrude in the longitudinal direction of the ship 2 moored toward the sea from the ground-side quay 26, and the unloader 1 runs along the width direction of the ship on the mooring quay 3. A passage 27 is provided.

As shown in FIGS. 2 and 3, the running path 27 is provided on the mooring quay 3 via a foundation 28, and running rails 29 are provided along the longitudinal direction on both upper surfaces thereof. In addition, guide rails 30 are provided on both side surfaces to prevent the unloader 1 from falling, and the traveling frame 4 is provided with drive wheels 31 that run along the traveling rails 29. A guide roller 32 is provided that rolls along.

Furthermore, the running rail 29 on the running path 27
A fixed conveyor 24 for discharging loads onto the ground conveyor 25 is provided between them.

Next, the method of the present invention will be explained using the above-mentioned apparatus example.

When carrying out cargo handling using the unloader 1, first, the traveling frame 4 is positioned on the ground side of the running path 27, the boom 5 is lowered, and the bucket conveyor 6 is inserted into the center of the ship 2, and the cargo handling is carried out. At the same time, cargo handling is performed while sequentially moving the bucket conveyor 6 in the direction of the ship's ship (stern direction or bow direction).

In order to move the bucket conveyor 6 in the direction of the ship's ship, the traveling frame 4 may be moved in the direction of the ship 2 and the boom 5 may be rotated in the direction of movement of the bucket conveyor 6.

For example, in the case of loading and unloading cargo from the most bow side or the most aft side of the ship 2, as shown in FIG. If the bucket conveyor 6 is turned in the direction shown by the two-dot chain line, the bucket conveyor 6 can be moved to the most bow side or the most aft position, and then the scraping section 21 of the bucket conveyor 6 can be moved radially as shown in the figure. Cargo handling can be carried out while turning.

In this way, cargo handling is carried out while moving the traveling frame 4 in the transverse direction of the ship, so the area occupied by the quay wall is reduced compared to the conventional case in which the traveling path of the unloader 1 is provided in the ship's direction. Therefore, the large surplus area on the mooring quay 3 can be used for other facilities.

Furthermore, since the bucket conveyor 6 is moved while the boom 5 is being rotated during cargo handling, the swiveling function of the boom 5 can be utilized to the fullest.

[0028]

[Effects of the Invention] In summary, according to the present invention, cargo handling is carried out by rotating the boom while moving the traveling frame in the width direction of the ship and moving the bucket conveyor in the direction of the ship's ship.
The area occupied by the unloader can be reduced compared to conventional ones, and the surplus area on the quay can be used for other facilities. In addition, since cargo handling is performed while the boom is rotating, the boom's rotating function can be utilized to the fullest.

[Brief explanation of drawings]

FIG. 1 is a plan view illustrating the method of the present invention.

FIG. 2 is a side view illustrating an unloader for carrying out the method of the present invention.

FIG. 3 is a front view illustrating a running path of the unloader.

FIG. 4 is a side view illustrating a conventional example.

[Explanation of symbols]

1 Unloader 2 Ship 3 Mooring quay 4 Traveling frame 5 Boom 6 Bucket conveyor

Claims (1)

[Claims] Claim 1. A cargo handling method for an unloader in which a boom is rotatably provided on a traveling frame and a bucket conveyor is provided at the tip of the boom, and the unloader handles bulk goods etc. from a berthed ship. A cargo handling method for an unloader, characterized in that, after being inserted into a ship to be loaded, cargo is handled by moving the traveling frame in the width direction of the ship, rotating the boom, and moving the bucket conveyor in the direction of the ship's ship.