KR20110139545A

KR20110139545A - Canister of drillship having rack gear and sliding rail structure

Info

Publication number: KR20110139545A
Application number: KR1020100059692A
Authority: KR
Inventors: 김진호; 서인옥; 이진웅
Original assignee: 현대중공업 주식회사
Priority date: 2010-06-23
Filing date: 2010-06-23
Publication date: 2011-12-29

Abstract

PURPOSE: A canister for a drillship having a rack gear and a sliding rail is provided to stabilize the operation of the canister by receiving power from a drive unit through rack gears. CONSTITUTION: A canister(30) for a drillship having a rack gear and a sliding rail comprises rack gears(31) and multiple sliding rails(32). The rack gears are vertically extended from both surfaces of the canister and are meshed with pinion gears(41) of drive units(40). The sliding rails are arranged on the front surface or the rear surface of the canister and are coupled to a guiderail formed in a trunk(10) to be separated from each other.

Description

Canister of drillship having rack gear and sliding rail structure}

The present invention relates to a drillship canister, and more particularly, to a drillship canister having a rack gear for coupling with a drive unit on both sides and a sliding rail for coupling with a guide rail provided in the trunk. .

Generally speaking, a drillship (drilling ship) means a ship used for oil exploration by drilling a hole in the bottom of the sea, generating propulsion for movement or steering, or maintaining the hull at a drilling point stably during drilling. There are a number of thrusters installed on the bottom of the ship to enable the construction.

The plurality of thrusters are installed to be distributed on the bow side and the stern side, usually two to three thrusters are installed on the bow side, and two to three thrusters are installed on the stern side. As such, the thruster which is distributed to the bow side and the stern side is driven by the control signal based on the satellite signal of the position information of the hull during drilling, and generates the propulsion force appropriately to anchor the drillship in place. Will perform.

On the other hand, the drillship is a long time in one place, so it solves its own troubles and accidents, but the thruster, which is a propulsion device, is located under the surface of the water. By having to move to the land, as well as the moving costs, the drilling operation is impossible during the repair period or during the movement, there is a problem that a huge cost loss occurs.

In consideration of such a problem, recently, a structure that enables the self-repair at sea even when the thruster is broken by using the canister mounted on the drillship to lift the thruster onto the water surface has been applied.

An object of the present invention is to install a rack gear coupled to the pinion gear on both sides of the canister for the movement of the canister to ensure a stable operating structure, the sliding rail coupled to the guide rail to support the movement of the canister of the canister It is to provide a drillship canister provided on the front surface to ensure a stable support structure.

Another object of the present invention is to form a gear tooth on both sides of the rack gear coupled to the drive unit so that both sides of the rack gear is combined with each rack gear to provide a drill ship canister that can ensure a more stable operating structure. Is in.

The drillship canister of the present invention, which achieves the object as described above and performs the task of eliminating the conventional drawbacks, is mounted in the trunk provided in the drillship, and moves up and down along the space formed by the trunk while being connected to the thruster. A canister of a drillship for lifting and lowering a thruster, comprising: a rack gear installed to extend in a vertical direction of a canister at both sides of the canister and engaged with a pinion gear of a drive unit; And a sliding rail installed on the front or rear surface of the canister and coupled with a guide rail provided in the trunk.

Meanwhile, gear teeth are formed on both sides of the rack gear so that both sides of the rack gear are engaged with the pinion gear.

On the other hand, the sliding rail is composed of a plurality, the plurality of sliding rail is installed in the canister to be coupled to the guide rail spaced apart from each other.

According to the present invention having the above characteristics, the canister is moved by receiving power from the drive unit through rack gears on both sides of the canister, and the sliding rail of the canister is coupled with the guide rail of the trunk, so that the canister is stable. The working structure can be secured.

1 is a plan view showing a state in which the canister is installed in the trunk according to a preferred embodiment of the present invention;
2 is a side view of a canister in accordance with a preferred embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

1 is a plan view showing a state in which the canister is installed in the trunk according to a preferred embodiment of the present invention, Figure 2 is a side view of the canister according to a preferred embodiment of the present invention.

The canister 30 of the present invention is installed in the trunk 10 provided in the drillship to move the thruster 20 up and down, the canister 30 according to the preferred embodiment of the present invention is a rack gear (on both sides) 31 is provided, and the sliding rail 32 is provided in the front surface or the back surface.

The rack gear 31 is formed in a structure extending in the vertical direction of the canister 30 in both the central portion of the side surface of the canister 30 is engaged with the pinion gear 41 of the drive unit 40. At this time, the drive unit 40 is respectively installed on opposite sides of the trunk 10 to be coupled to the rack gear 31 provided on each side of the canister 30, respectively.

Meanwhile, gear teeth may be formed only on one side of the rack gear 31 to be engaged with the pinion gear 41. However, since the thruster 20 and the canister 30 are heavy materials having a considerable weight, the driving force is stably provided. And gear teeth are formed on both left and right sides of the rack gear 31 so that the load transmitted to the drive unit 40 can be distributed, and one pinion gear on each of the left and right sides of the rack gear 31. When the driving unit 40 is configured such that the 41 is positioned, it is possible to ensure a more stable operating structure.

The sliding rail 32 is installed on the front or rear of the canister 30 is coupled to the guide rail 11 provided in the trunk 10. The sliding rail 32 may be installed at the center portion of the canister 30 according to the position of the guide rail 11, or may be installed at both end portions of the canister 30. 1 illustrates a structure in which sliding rails 32 are installed at both front ends of the canister 30.

Meanwhile, the sliding rail 32 may be continuously configured along the guide rail 11, but in this case, the weight of the sliding rail 32 is added to the canister 30 to consume more energy when the canister 30 is driven. Since it causes a plurality of sliding rails 32, a plurality of sliding rails 32 are installed in the canister 30 to be coupled to the guide rails 11 while being spaced apart from each other.

In this case, the plurality of sliding rails 32 may have the same length or different shapes, and FIG. 2 illustrates a structure in which the length of the sliding rail located at the top is short and the length of the sliding rail located at the bottom is long.

In the canister 30 of the present invention configured as described above, the sliding rail 32 provided at the front side is coupled to the guide rail 11 of the trunk 10 to have a stable support structure, and the rack gears provided at both sides ( 31) and the pinion gear 41 of the drive unit 40 to be evenly transmitted through both sides of the force for the shangdong can be a stable operation.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

<Explanation of symbols for the main parts of the drawings>
10: trunk 20: thruster
(30): canister (31): rack gear
(32): sliding rail (40): drive unit
41: pinion gear

Claims

The canister 30 of the drillship mounted on the trunk 10 provided in the drillship and moving up and down the thruster 20 while moving up and down along the space formed by the trunk 10 while being connected to the thruster 20. To
Rack gears 31 installed on both sides of the canister 30 so as to extend in the vertical direction of the canister 30 and engaged with the pinion gear 41 of the drive unit 40; And
Drilling canister having a rack gear and a sliding rail, characterized in that it comprises a sliding rail (32) coupled to the guide rail (11) provided in the trunk (10) provided on the front or rear of the canister (30).

The method of claim 1,
Gear teeth are formed on both left and right sides of the rack gear (31) so that both sides of the rack gear (31) is configured to engage with the pinion gear (41).

The method of claim 1,
The sliding rail 32 is composed of a plurality, the plurality of sliding rail 32 is drilled having a rack gear and a sliding rail, characterized in that installed in the canister 30 to be coupled to the guide rail 11 while being spaced apart from each other Easy canister.