JP2915679B2 - Automatic inspection equipment in ship tanks - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic inspection device inside a cargo tank of a ship such as a large tanker, and more particularly to an improvement of a moving mechanism of the automatic inspection device.

[0002]

2. Description of the Related Art As a water tank and a freight tank of a large tanker, there are those conventionally shown in FIG. 7 (partial perspective view).
Left and right ship side skins 1 reinforced with a plurality of ship side longitudinal ribs 2
Is attached to the upper deck 3 reinforced by a plurality of upper deck longitudinal ribs 4 and the bottom shell 5 reinforced by a plurality of bottom longitudinal ribs 6, respectively, to a plurality of longitudinal bulkheads. A longitudinal partition 7 reinforced by longitudinal ribs 8 and a plurality of horizontal partitions 9 are vertically and horizontally partitioned to form a ship-side water tank 10 and a central freight tank 11.

[0003] Conventionally, inspection of the hull structure, welds, and the like in each of these tanks has been carried out by erection of a scaffold and visual inspection of the inspector from the scaffold.

[0004]

However, such an inspection has the following problems. (1) Since the scaffolding is erected in a huge freight tank, it requires a large number of skilled workers and a long construction period, which is enormously expensive. (2) All work, such as scaffold erection work and visual inspection work, is performed at height and is extremely dangerous due to poor environment. (3) Inspections are generally visual, and the results vary from individual to individual, and their reliability is not sufficient.

The present invention is intended to solve such a problem. An automatic inspection device is mounted on an elevating platform capable of ascending and descending by using a pole delivered from an upper deck of a ship as a guide member. Move the inspection device horizontally
By inspecting the tank by rotating or rotating ,
Without requiring a scaffold in the tank, and without aerial, Katsuaki
In addition to being able to inspect the wall for damage, etc., the speed of movement of the automatic inspection equipment can be increased, and as a result, the automatic inspection equipment in the ship's freight tank has been improved in terms of economy, reliability and inspection speed. It is an object to provide an inspection device.

[0006]

In order to achieve the above-mentioned object, an automatic inspection apparatus in a tank of a ship according to the present invention is provided. A pole fixed to the bottom of the ship, a lifting platform arranged to be able to ascend and descend along the pole, an arm protruding horizontally in the lifting platform and having a telescopic part at the tip, and an inside of the tank And an automatic inspection device equipped with an inspection tool for inspecting the arm.
Arm fixing means for fixing the arm to the wall of the tank, etc.
Is, the automatic inspection device is rotatably mounted to said arm about axis slide and the arm in the longitudinal direction of the arm Rutotomoni, the earth and the automatic inspection device
The drive means and the arm are slid in the longitudinal direction of the arm.
And a rotating means for rotating as an axis .

[0007]

According to the above-described automatic inspection apparatus in a tank of a ship of the present invention,
Since the elevator can be moved up and down by using the pole as a guide, the elevating speed of the elevator can be increased.

In addition, since the automatic inspection device is slidably and rotatably mounted on an arm protruding horizontally from the lift table, the automatic inspection device can be moved up and down , slided, and operated .
The Rukoto combined rotation operation, inspection of <br/> easily and quickly position by the automatic inspection apparatus can be performed.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic perspective view of an essential part of an automatic inspection apparatus in a vessel of a ship according to an embodiment of the present invention. FIG.
3 is a perspective view showing an operation state, FIG. 4 is a schematic perspective view of an arm, FIG. 5 is a side sectional view of an automatic inspection device, and FIG.
FIG.

An automatic inspection apparatus in a tank of a ship according to this embodiment
The central freight tank 11 having the structure shown in FIG. 7 is to be inspected. A pole delivery device 13 is installed on the upper deck 3, and the pole 15 delivered from the pole delivery device 13 through the manhole 3a is: The lower end is fixed to the longitudinal rib 6 of the ship bottom in the central freight tank 11 with a fixing jig 6a.

An elevator 14 is mounted on a pole 15 so as to be able to ascend and descend.

In order to raise and lower the elevator 14 at a rapid speed in an emergency or the like, a lifting drive motor 12 and a suspension wire 12a which are remotely controlled from a control room 22 on the upper deck 3 are provided.
Is provided.

Further, a pair of arms 18 are horizontally protruded from the elevating table 14. A rod 24 is attached to each end of each arm 18 in a state of being urged outward by a spring 23 , and an electric wire as arm fixing means is attached to the end of the rod 24.
A magnet 19 is provided to extend each arm 18
The distal end of the arm 18 can be fixed to the ship-side outer panel 1 or the vertical partition 7 by the magnetic force of the electromagnet 19.

The tip of a wire 25 disposed inside the arm 18 is attached to the rod 24. The wire 25 is wound around a winch 26 installed inside the elevator 14, and when the elevator 14 moves up and down, the winch 26 is operated to operate the rod 24.
To prevent them from getting caught in the ribs.

Each of the arms 18 has an automatic inspection device 17
However, it is attached so as to be able to rotate around each arm 18 in a fixed state as an axis and to move along each arm 18 by remote control.

A manipulator 20 is attached to the automatic inspection device 17, and an inspection tool for inspecting the inside of the oil tank such as a television camera 21 and a non-destructive inspection device is attached to a tip of the manipulator 20.

The automatic inspection device 17 includes a motor-equipped gear 17b in a case 17a, and the gear 17b meshes with a rack 18a provided in the longitudinal direction of the arm 18. Symbol 17c is case 17a
3 shows an idler roller for stabilizing the arm with respect to the arm 18.

At the front of the case 17a (on the side away from the elevating table 14), there is integrally provided a hollow hardware 17d having a hollow portion along the outer peripheral portion of the arm 18, and the front end of the hollow hardware 17d is engaged with the rack 18a. Gear 17e is mounted.

The ball bearing 1 is mounted on the outer peripheral portion of the hollow hardware 17d.
An internal gear 17j in which a bracket 20a is rotatably fitted via 7f, a motor 17g is attached to the bracket 20a, and a bevel gear 17h on a rotating shaft of the motor 17g is fixed to a front side surface of the case 17a. It is designed to mesh with.
Reference numeral 17k indicates a rotating casing. The base of the manipulator 20 is attached to a bracket 20a.

As shown in FIG. 2, a crimping type self-propelled sliding roller 16 for holding the pawl 15 from all around is mounted inside the lift 14.
With 16 rotations, the lift 14 can be moved up and down along the pole 15. Reference numeral 27 denotes a power / communication cable, and reference numeral 28 denotes a control signal transmission cable.

In the above configuration, in order to move the automatic inspection device 17 up and down, first, the automatic inspection device 17 is sent out from the pole feeding device 13 installed on the upper deck 3 and is moved between the bottom longitudinal rib 6 and the upper deck 3 in the tank. Attach the elevator 14 to one pole 15 which is set up.

The crimping type sliding roller 16 inside the lift 14 sandwiches the pole 15 from four directions, rotates itself, and raises and lowers the lift 14 to a predetermined position by remote control to stop it. Next, the winch 26 is rewound to project the rod 24 at the tip of the arm 18 attached to the left and right of the lift 14, and the tip of the rod 18 is fixed to the vertical partition 7 by the electromagnet 19.

While the automatic inspection device 17 is rotated or slid about the fixed arm 18 as an axis, the inspection of the interior of the oil tank is performed by an inspection tool such as the television camera 21. In this case, a signal from the inspection tool is transmitted to the control room 22 via the cable 27, where a plurality of inspectors make a determination and data is recorded.

That is, the slide of the automatic inspection device 17 (the movement of the arm 18 in the longitudinal direction) is performed by rotating the gear 17b.
This is performed by moving the case 17a along 18a.

The rotation of the automatic inspection apparatus 17 around the arm 18 is performed by rotating the bevel gear 17h by the motor 17g to the internal gear 17j.
By rotating with the motor 17g
Done.

Then, the television camera 21 is moved to a desired position by the above-described slide or rotation of the automatic inspection device 17, and the inspection by the television camera 21 can be performed.

In this case, the movement of the television camera 21 or the like to a desired position is determined by elevating the elevator 14 along the pole 15
The rotation and sliding of the automatic inspection device 17 around the arm 18 can be performed in combination, and the above operations can be performed simultaneously by a combined operation, so that the inspection tool such as a television camera can be moved quickly. And the inspection time can be shortened.

In the case of a sudden drop and a large movement (for example, the vertical movement of the upper deck from the bottom of the ship), the lifting wire 12a is used to wind up the lifting wire 12a by using the lifting drive motor 12 on the upper deck 3. Perform 14 rapid withdrawals.

As described above, in the automatic inspection apparatus in the tank of the ship according to the present embodiment, the following operations and effects are obtained. (1) Sufficient safety can be obtained by eliminating inspections at high altitudes. (2) Inspection data can be recorded and judged by a plurality of inspectors or can be viewed repeatedly, so that the reliability of the inspection results is improved and the results can be reflected in analysis work and the like. (3) Inspection costs can be halved compared to the conventional scaffold erection. (4) The inspection period can be shortened by increasing the inspection speed. (5) At the time of inspection, the tip of the arm that supports the automatic inspection device
Because it is fixed, you can slide the automatic inspection device
The automatic inspection device does not shake even if it is rotated,
Accurate inspection becomes possible. (6) Slide the automatic inspection device close to the tank inner wall.
Can be rotated along the wall at that position.
Of the wall close to the inner wall of the tank
Inspection becomes possible .

[0030]

As described in detail above, effects such as the following are obtained according to the intracisternal automatic test equipment of the ship of the present invention. (1) Sufficient safety can be obtained by eliminating inspections at high altitudes. (2) Inspection costs can be halved compared to the conventional scaffolding. (3) The inspection period can be shortened by increasing the inspection speed. (4) At the time of inspection, the tip of the arm that supports the automatic inspection
Because it is fixed, you can slide the automatic inspection device
The automatic inspection device does not shake even if it is rotated,
Accurate inspection becomes possible. (5) Slide the automatic inspection device close to the tank inner wall.
Can be rotated along the wall at that position.
Of the wall close to the inner wall of the tank
Inspection becomes possible .

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of a main part of a vessel automatic inspection apparatus according to an embodiment of the present invention.

FIG. 2 is a schematic plan sectional view of the inside of the elevator.

FIG. 3 is a perspective view showing the same operation state.

FIG. 4 is a schematic perspective view of the arm.

FIG. 5 is a side sectional view of the automatic inspection device.

FIG. 6 is a view taken in the direction of arrows AA in FIG. 5;

FIG. 7 is a partial perspective view showing a water tank and a freight tank of a conventional large tanker.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Ship side skin 3 Upper deck 5 Ship bottom shell 7 Vertical bulkhead 10 Ship side water tank 11 Central freight tank 12 Elevation drive motor 12a Suspension wire 13 Pole delivery device 14 Lifting table 15 Pole 16 Self-propelled sliding roller 17 Automatic inspection device 18 Arm 19 Electromagnet 20 Manipulator 21 TV camera 24 Rod 25 Wire 26 Winch

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-53-102597 (JP, A) JP-A-62-43389 (JP, A) JP-A-4-283080 (JP, A) 27897 (JP, U) Fully open Sho 61-107834 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) B63B 9/00

Claims (1)

(57) [Claims] 1. A pole which is sent out from an upper deck of a vessel and whose lower end is fixed to the bottom of the vessel inside a tank formed in the vessel, and a lift platform which is arranged to be able to ascend and descend along the pole. An arm protruding in the horizontal direction on the elevator and having a telescopic portion at the tip, and an automatic inspection device equipped with an inspection tool for inspecting the inside of the tank .
The arm is fixed to the wall of the above-mentioned tank at the telescopic part at the tip of the
Arm fixing means to be provided, the automatic inspection device,
Rutotomo rotatably mounted to said arm about axis slide and the arm in the longitudinal direction of the arm
Next, slide the automatic inspection device in the longitudinal direction of the arm.
Drive means for rotating the arm and the arm
An automatic inspection device in a tank of a ship, comprising: a turning means .