JPS62139798A - Ocean ship arrival device for aircraft - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field 1] The present invention relates to an offshore landing device for landing an aircraft from a ship or the like on the ocean, and in particular, a system for capturing aircraft conditions during hovering and lowering the aircraft onto a ship or the like. This relates to a landing device for aircraft at sea.

[Prior Art] Conventionally, when landing an aircraft on a ship, it is relatively easy to take off, but when landing, various problems arise because the ship is rocked by waves.

In general, ships are rolling, which is caused by waves that cause them to sway in the width direction of the ship.
pitching, in which the ship swings in the direction of the captain; yawing, in which the bow and stern swing from side to side on a horizontal plane; heaving, in which the hull moves up and down;
Swinging, in which the hull moves horizontally in the transverse direction, and surging, in which the hull moves in the direction of the ship after yJ.
These combine to create a complex oscillation, with normal rolling being ±156°, pitching being ±6°, and heaving being ±4°.
m sways.

Therefore, when an aircraft attempts to land on a ship, the aircraft descends regardless of the shaking of the ship, resulting in a dangerous situation such as destroying the aircraft upon landing.

For this reason, as shown in FIG. 3, a landing device for capturing a hovering aircraft is being developed.

That is, in this ship landing device, a swivel base 3 is rotatably provided on the side of the deck 2 of a ship 1, and a square 1-4 extending upward is attached to the swivel base 3 so as to be vertically movable. and a boom 5 is rotatably provided at the tip of the mast 4,
The boom 5 has a two-digit trapping device 7 installed at the tip of the boom 5 to catch the air pus 6. The mast 4 is raised and raised by the mast cylinder 8, and the boom 5 is rotated by the boom cylinder 9, and the swing base 3 is rotated. By rotating it, the catching device 7 at the tip of the boom 5 is kept stationary even if the ship 1 is shaken by waves.

In this landing device, the aircraft 6 is in a hovering state as shown in the figure, the capture device 7 is brought close to the aircraft 6 using various sensors, and the cylinders 8 and 9 are moved as described above.
Then, the aircraft 6 is captured by the capture device 27 when the capture device 7 is held stationary by turning the rotation base 3 and the capture device ff17 matches the position of the aircraft 6, and then the aircraft 6 is installed on the ship 1. This is for landing on the landing pad 10.

[Problems to be Solved by the Invention] However, as mentioned above, the wave movement is large, so it is necessary to control the extension and contraction length of the mast cylinder 8, boom cylinder 9, etc. so that the capture 1iifef 7 can remain stationary. In this case, since the control ffi is large, the control becomes complicated, and there is no play between the tip of the boom 5 and the capture device @7, so if the wave oscillation becomes large just before capturing the aircraft 1M6, etc. The acquisition equipment is 7 and aviation Fj16.
There is a risk of damage.

[Object of the Invention] The present invention has been made in consideration of the above-mentioned circumstances, and it is an object of the present invention to provide a landing device at sea that is easily controllable and capable of safely capturing a hovering aircraft. The purpose is to

[Summary of the Invention] In order to achieve the above object, the present invention provides a jib crane with a boom that is extendable and retractable on the deck of a ship, etc., and keeps the boom tip of the jib crane stationary against the movement of the ship, etc. The boom is installed so that it can be rotated and raised freely, and at the tip of the boom, a capture device for capturing a hovering aircraft is attached to a stage that can be raised and lowered via a flexible cable. By installing the capture device so that it can be raised and lowered freely, there is play in the capture device, and even if a collision occurs between the aircraft and the capture device during capture, the capture device can be moved by the cable, making it safe. Because of its flexibility, it is easy to capture.

[Embodiment] Hereinafter, a preferred embodiment of the ocean landing 1) device for an aircraft according to the present invention will be explained based on the accompanying drawings.

In FIG. 1, numeral 1 indicates an offshore structure such as a ship or an oil drilling rig, which is shaken by ocean waves. A swing base 3 is rotatably provided on the deck 2 of the ship 1'yi, and a telescopic boom 11 is connected to the swing base 3 with a bin 12.
A hydraulic cylinder 13 is connected to the boom 11 and the swing base 3 to form a jib crane 14.

The boom 11 is composed of a main boom 11a that is connected to the rotating base 3 so as to be able to rise and fall freely, a D-no boom 11b that is provided in the main boom 11a so that it can be freely stored, and a cylinder 15 that extends and contracts the sub-boom 11b. be done.

As shown in FIGS. 1 and 2, a catching pulley 16 is provided at the tip of the sub-boom 11b, and a catching device 7 is provided by a flexible rope 17 such as a wire that is wrapped around the pulley 16. It will be done. Although the cable 17 is not shown in the figure, it passes through the boom 11 and is wrapped around a winch or the like, and suspends the catching device 7 so as to be able to rise and fall.

In addition, as shown in FIG. 2, an operating pulley 18 is provided at the tip of the sub-boom 11b, on which an operating wire (not shown) for operating the catch 5A position 7 is wound. A wire is connected to an operating device such as a winch through the inside of the boom 11, and the capturing operation of the capturing device 7 can be performed by operating the operating wire.

The capture device 7 may be any device that can capture the hovering aircraft 6. For example, a support bin (not shown) may be provided on the top of the aircraft 6, and the capture device 7 can capture the aircraft 6 while it is hovering. A''a7 is provided with one lock pin or gripping device that engages with the support bin, and by operating the above-mentioned operating wire, the gripping device 1
After engaging the support bin of the aircraft 6 at 9, the aircraft 6 is held down and supported by the holding pad 20 of the capture device 7.

Further, on the landing pad 10 of the side plate of the ship 1, etc., there is a guidance device 21 for preventing the shaking of the aircraft 6, which is captured by the capturing device 7 and suspended by the jib clean 14, and for landing on the landing pad 10.
will be provided. This guidance device 21 is composed of a wire 22 unloaded from the aircraft 6, a winch 23 that winds up the wire 22, and the like.

Next, the present invention will be explained in detail.

First, the aircraft 6 is hovered in the air next to the ship 1 etc. as shown in the figure, and then the jib crane 14
control the expansion/contraction and elevation angle of the swing base 3 and boom 11 to keep the capture device 7 suspended by the rope 17 stationary against the shaking of the ship 1 etc. due to waves, and to control the capture device 7 and the aircraft 6
When the positions of the aircraft 116 match, the aircraft 116 is captured. In this case, since the capturing device 7 is suspended by the rope 17, even if the capturing operation does not go well, the capturing device 7 can repeatedly perform the capturing operation until the aircraft 6 is captured without being damaged.

Furthermore, during this capturing work, it is only necessary to operate the hydraulic sill 13, rotate the telescopic rotation base 3 of the boom 11, and control the lifting and lowering of the capturing device 7, and the capturing device 7 sways gently with the shaking of the ship 1. Therefore, the amount of control required is relatively small, and control becomes easy.

When the aircraft 6 is captured, the boom 11 is raised and retracted as shown by the two-dot chain line in the figure, and the cable 17 is let out and the capture device 7 is lowered, allowing the aircraft 6 to land as shown by the two-dot chain line in the figure. Lower it onto the platform 10. In this case, since the aircraft 6 slides on the cable 17, the guidance device 21 guides the aircraft 6 from below to prevent the aircraft from shaking and lower it safely onto the landing pad 10.

[Effects of the Invention] As is clear from what has been described in detail above, the present invention provides the following significant effects.

(1) A jib crane is installed on the deck of a ship, etc. so that it can be expanded and contracted, rotated freely, and raised and raised freely, and a capture device for capturing an aircraft is installed at the tip of the crane so that it can be raised and lowered via a flexible cable. Aircraft acquisition operations can be performed safely.

(2) Since the capture device is provided so that it can be raised and lowered by a rope, it has a degree of freedom, and can be maintained in a stationary state with relatively rough control against the shaking of the ship, making it easy to capture it.

(3) When lowering the captured aircraft onto the landing pad, the guidance device prevents relative shaking between the ship and the aircraft, so it can be lowered safely.

[Brief explanation of drawings]

FIG. 1 is a diagram showing an embodiment of the offshore landing device for an aircraft of the present invention, FIG. 2 is a view taken along the line ff-II in FIG. 1, and FIG. 3 is a diagram showing a conventional example. In the figure, 1 is a ship, 2 is a deck, 6 is an aircraft, 7 is a capture device, 11 is a boom, 14 is a jib crane, and 17 is a cable. Patent applicant: Ishikawajima-Harima Heavy Industries Co., Ltd. Representative patent attorney: Nobuo Kinutani (7b 77...Figure 2)

Claims (1)

[Claims] A jib crane with a telescopic boom is installed on the deck of a ship, etc., and the boom tip of the jib crane is installed so as to be rotatable and tiltable to keep it stationary against the shaking of the ship, etc.; An aircraft landing device at sea, characterized in that a capturing device for capturing a hovering aircraft is provided so as to be movable up and down via a flexible cable.