JPS6010975Y2 - Leakage prevention device - Google Patents

Description

[Detailed description of the invention] This invention is designed to stop the cargo that falls between the ship's side and the receiving hopper when unloading bulk materials loaded on a ship using a grab bucket or other grasping device. This invention relates to a thin load prevention device.

When bulk materials loaded on a ship are unloaded onto a hopper by crane equipment on land, bulk cargoes can contaminate seawater or generate dust on land, causing pollution. become.

Therefore, conventionally, a thin load receiving plate has been used in which a thin load receiving plate is provided close to the hopper, and the thin load generated during cargo handling is received by the thin load receiving plate, and this is transferred to an unloader conveyor by a collection conveyor.

However, the load may spill from the gap between the thin load receiving plate and the collection conveyor or the gap between the collection conveyor and the unloader conveyor, the unloader conveyor device becomes complicated and the equipment cost increases, or the grab bucket is damaged during cargo handling. In order to prevent the grab bucket from colliding with the thin load receiving plate, the grab bucket must be hoisted up in advance before being moved to the hopper side, which has the disadvantage of reducing cargo handling efficiency.

The present invention provides a thin load prevention device that eliminates such drawbacks, and includes a base end portion of a thin load receiving plate having a width spanning the entire width of the hopper at the upper part of one side of the hopper supported by a hopper frame. position, and the base end of the thin load receiving plate is pivotally connected to the hopper frame, a gutter-shaped thin load receiving plate is attached to the tip of the thin load receiving plate, and a thin load receiving plate is provided on both sides of the thin load receiving plate and the thin load receiving plate. The gist of the present invention is a thin load prevention device, characterized in that a side plate is provided, and the thin load receiving plate is connected to a hoisting winch.

Next, an embodiment of the present invention will be described with reference to the drawings. In FIG. 1, reference numeral 9 denotes a leg of a cargo handling device installed on land, and the unloader girder 1 is horizontally attached to the upper part of the leg 9.

A grab bucket 3 moves along the unloader girder 1 and carries bulk cargo loaded on the ship 2 to the hopper 8.

10 is a hopper frame that supports the hopper 8.

As shown in FIGS. 1 and 2, a bracket 19 is attached to the upper end of the hopper frame 10, and the base end of the thin load receiving plate 4 is pivotally attached to the bracket 19 by a pin 18.

The thin load receiving plate 4 has a width that spans the entire width of the hopper 8, and its base end is pivotally connected to the bracket 19 by the aforementioned pin 18 so as to be located at the top of one side of the hopper 8. A gutter-like thin cargo reservoir 21 is integrally attached to the section.

Side plates 5 are provided on both sides of the thin load receiving plate 4 to prevent the load from spilling, and a bracket 15 is provided near the tip of the side plate 5.
is installed.

One end of the hoisting rope 7 is attached to this bracket 15 via a pin 14, a fork fitting 20, a pin 16, and a simple 17.

In FIG. 1, a support stand 11 is attached to the upper part of the leg 9, and a hoisting winch 6 with a torque motor is provided thereon.

The other end of the hoisting q-p 7 mentioned above is adapted to be hoisted up and lowered by a hoisting winch 6, and the thin load receiving plate 4
is adapted to rotate around a pin 18 (see FIG. 2).

When unloading a bulk cargo in a ship 2 to a hopper 8 using a grab bucket 3, a hoisting winch 6 is operated so that a thin cargo receiving plate 4 receives the thin cargo.

If the ship's side is in the upper position as shown by the solid line in Figure 1, the cargo inside the ship is small, and the ship leaves the berth immediately after cargo handling is completed, the thin load receiving plate 4 may be positioned as shown in C. .

At this time, the torque motor of the hoisting winch 6 is left in operation to prevent damage to the mechanism when excessive external force is applied.

In addition, an elastic plate is attached to the portion where the thin load receiving plate 4 comes into contact with the ship to prevent damage to the thin load receiving plate 4 and the side.

When the ship's side is below as shown by the chain line, the leakage load receiving plate 4 is of course positioned as shown in b, but even if the ship's side is above, the thin load receiving plate 4 is generally positioned at position b.

When a load accumulates in the thin load receiving plate 4, it is rolled up to the position a and released into the hopper 8.

When not carrying out cargo handling work, the hoisting winch 6 is lowered, the thin load receiving plate 4 is placed at position d, and the hopper frame 10 is
The thin load receiving plate 4 is fixed to a fixed base (not shown) attached to the thin load receiving plate 4, or the thin load receiving plate 4 is fixed to a fixed base (not shown) at the position a.

A buffer 12 is attached to the thin load receiving plate fixing base 13 to prevent shock from occurring when storing the thin load receiving plate 4.

A brake device is attached to the hoisting winch 6, and when the thin load receiving plate 4 reaches the hoisting upper limit position a or the lower hoisting limit position d, the brake is applied at the same time as the motor is stopped by the action of a limit switch. The brake is also applied to maintain the position at position b.

In addition, a limit switch is provided at the part where the thin load receiving plate 4 contacts the gunwale side, and when the thin load receiving plate 4 is in position C, the torque motor of the hoisting winch 6 is operated by the operation of this limit switch, and the torque motor of the hoisting winch 6 is activated. When an external force greater than the motor output is applied, the torque motor can be reversed to prevent damage to both parties.

The hoisting winch 6 may be operated in the operator's cab where the grab bucket 3 is operated, or may be operated near the thin load receiving plate 4.

When unloading bulk goods using a grabber such as a grab bucket, this invention places a thin load receiving plate having a width that spans the entire width of the hopper between the ship's side and the hopper to stop the thin load from being received. This device can be loaded into the hopper, eliminating the need for an extended unloader conveyor and collection conveyor, which were previously required, and greatly simplifying the equipment, making operation and maintenance easy. becomes.

Further, dust generated at the connection point between the collection conveyor and the unloader conveyor can be avoided, and contamination of the working environment due to dust can be prevented.

In addition, since a gutter-like thin load receiving plate is attached to the thin load receiving plate and side plates are provided on both sides of the thin load receiving plate, thin loads from a grab device such as a grab bucket can be completely collected.
Pollution such as seawater pollution can be prevented.

In addition, the base end of the thin load receiving plate is not supported by the hopper, but is supported by being pivoted to the hopper frame, so the weight of the thin load receiving plate is not applied to the hopper and does not affect the hopper internal load weighing machine. It is possible to detect the load inside the hopper.

Since the thin cargo receiving plate attached to the thin cargo receiving plate is a gutter with a semicircular arc cross section, when the thin cargo is hoisted up by the hoisting lobe, the accumulated thin cargo can be dumped into the hopper with almost no adhesion.

Therefore, all cargo passes through the hopper, and the weight of the landed cargo can be accurately known.

Furthermore, since the thin cargo receiving plate is pivoted to the hopper frame and positioned diagonally, the grasping device such as a grab bucket does not collide with the cargo receiving plate during cargo handling, and the grasping device is hoisted up high in advance before moving to the hopper side. Since there is no need to do so, efficient and safe cargo handling can be carried out, and the leakage receiving plate can be operated either in the operator's cabin or near the site.

. Furthermore, the present invention has a simpler structure than the conventional device described in Japanese Utility Model Application Publication No. 50-74675, so it is easy to operate and has excellent operability, and requires less incidental equipment, making maintenance management easy.

[Brief explanation of drawings]

FIG. 1 is a side view of an embodiment of the present invention, and FIG. 2 is an enlarged side view of the main parts. 4...Leakage receiving plate, 6...Hoisting winch, 7...Hoisting rope, 8...Hopper,
10...Hopper frame, 18...Zen, 21...Light cargo storage.

Claims (1)

[Scope of utility model registration request] A base end portion of a thin load receiving plate having a width extending over the entire width of the hopper is positioned above one side of the hopper supported by the hopper frame, and the base end portion of the thin load receiving plate is pivotally connected to the hopper frame. , characterized in that a gutter-shaped thin load reservoir is attached to the tip of the thin load receiving plate, side plates are provided on both sides of the thin load receiving plate and the thin load receiving plate, and the thin load receiving plate is connected to a hoisting winch. Light load prevention device.