JPS633598Y2 - - Google Patents

Description

[Detailed description of the invention] The device of the present invention is installed on a conventional earth transport vessel to land dredged earth and sand.

Due to recent environmental conservation efforts, it has become extremely difficult to dump the earth and sand resulting from port dredging work into the ocean, and there is now a need to dispose of it on land.

In other words, with the enforcement of the Marine Pollution Prevention Law in 1971, the conventional practice of dumping dredged soil into the ocean was severely restricted.

Traditionally, soil transport vessels were towed to coastal destinations and dumped dredged soil, but dumping areas have been designated and restricted nationwide, and soil transport vessels have also been registered as waste discharging vessels and are subject to supervision. Restrictions on construction work have become even stronger, including the need to undergo equipment inspections by government agencies, making it virtually impossible to dump waste into the ocean.

In response to these circumstances, soil is being lifted onto land, and the machines used include a traditional soil transport vessel that completely blocks the opening in the bottom, and a backhoe that scoops the soil from the quay. ing.

However, there is an imbalance in capacity with loading machines (Detsupa-type dredgers), and the development of a lifting-type soil transport vessel is desired.

Hereinafter, details of one embodiment of the present invention will be described with reference to the drawings.

1 is the proposed soil lifting mechanism for earth transport vessels. The configuration is as follows: A fixed frame 4 is arranged opposite to the opening 2A of the mud hold 2 in the earth-lifting type earth transport vessel, and has a lower end suspended in the mud hold at a predetermined angle from the support 3 having a substantially T-shaped side surface.
is fixed, and left and right movable frames 5 are attached to the fixed frame 4 that move up and down along the fixed frame, and a bucket 6 is connected to the lower end of the movable frame 5 so as to be able to rise and fall freely. An upper frame 3B is hung on the rear protrusion 3A, left and right hanging arms 7 are rotatably attached to the frame 3B, a scraper 8 is fixed to the lower end of the hanging arm 7, and a scraper 8 is fixed to the lower end of the hanging arm 7. Tip 8A
As the bucket tot 6 rises, it comes into contact with the rear end 6A of the bucket tot, and further uses the bottom plate 6B of the bucket tot as a guide to forcibly blow out the earth and sand inside the bucket tot.

Therefore, to explain the connection state between the fixed frame 4 and the movable frame 5, a roller 5A protruding from the movable frame 5 is rotatably fitted into an opening of the fixed frame 4, which has a U-shaped cross section. are combined.

9 is a hoisting device, and 10 is a hydraulic cylinder that raises and lowers the bucket.

Next, the function of the proposed method will be explained.

When the bucket 6 filled with earth and sand in the mud tank 2 is raised by the hoisting device 9 and the moving frame 5 is raised using the fixed frame 4 as a guide, the bucket 6 comes into contact with the scraper 8 on the way up, and when raised further, the bucket Using the bottom 6B of the bucket 6 as a guide, the tip 8A of the scraper 8 moves upward to remove the earth and sand from the bucket 6. Thereafter, when the movable frame 5 is lowered, the scraper 8 is suspended in a nearly vertical state due to its own weight.

Note that all of these devices are installed on the running frame 11, and the running frame 11 has wheels 1.
2 is provided, and the entire device moves back and forth over the opening 2A to scoop up earth and sand in the mud hold.

In the figure, 13 is a rail.

The effects of this proposal are as follows.

Conventional methods for lifting soil include the use of backhoes and reclaimers, but as mentioned above, lifting soil using backhoes has the problem of an imbalance in capacity with the loading machine (ship). In addition, in the method using a reclaimer, the mud in the mud hold has a high water content, so there are problems of preventing pollution during lifting, and when using soft mud, there are problems such as remaining soil in the bucket and spilling of mud from the opening. occurs.

The proposed soil lifting mechanism can solve these problems.In particular, by changing the angle of the bucket, it is possible to lift soil with a high water content without polluting the surrounding area, and the bucket capacity can be used for loading machines (ships). In addition, it has the effect of balancing abilities.

[Brief explanation of the drawing]

1 is a front view, FIG. 2 is a cross-sectional view taken along the line A--A of the same, and FIG. 3 is an enlarged cross-sectional view taken along the line B--B of FIG. 1...Earth lifting mechanism, 2...Mud tank, 3...Strut, 4
...Fixed frame, 5...Moving frame, 6...
Bucket, 7... hanging arm, 8... scraper.

Claims (1)

[Scope of utility model registration request] A fixed frame 4 which faces an opening 2A of a mud hold 2 in an earth-lifting type earth transport vessel and whose lower end is suspended into the mud hold at a predetermined angle from a support 3 having a substantially T-shaped side surface.
is fixed, and left and right movable frames 5 are attached to the fixed frame 4 that move up and down along the fixed frame, and a bucket 6 is connected to the lower end of the movable frame 5 so as to be able to rise and fall freely. An upper frame 3B is hung on the rear protrusion 3A, left and right hanging arms 7 are rotatably attached to the frame 3B, a scraper 8 is fixed to the lower end of the hanging arm 7, and a scraper 8 is fixed to the lower end of the hanging arm 7. Tip 8A
The earth lifting type soil is characterized in that as the bucket 6 rises, the bucket comes into contact with the rear end 6A of the bucket, and the soil inside the bucket is forcibly discharged using the bottom plate 6B of the bucket as a guide. Lifting mechanism for ship transport.