CN111017113B

CN111017113B - Underwater dismounting module for special shackle

Info

Publication number: CN111017113B
Application number: CN201911226989.7A
Authority: CN
Inventors: 陶兴; 许泓波; 董鑫; 陶安祥; 陶良凤; 张卫新; 李剑; 邵云亮
Original assignee: Jiangsu Asian Star Anchor Chain Co Ltd
Current assignee: Jiangsu Asian Star Anchor Chain Co Ltd
Priority date: 2019-12-04
Filing date: 2019-12-04
Publication date: 2022-05-27
Anticipated expiration: 2039-12-04
Also published as: ZA202207334B; WO2021109360A1; CN111017113A

Abstract

An underwater dismounting module for a special shackle comprises a transverse pin dismounting module and a nut dismounting module, wherein the transverse pin dismounting module comprises a transverse pin sleeve, an ROV transverse pin handle, a transverse pin stop pin, an ROV transverse pin stop pin, a transverse pin and a ball bearing; the transverse pin dismounting module is arranged on the right side of the shackle body and comprises a nut, an ROV nut handle, a nut sleeve, a nut stop pin, a guide rail, an ROV slider stop pin, a slider, an ROV slider handle and a nut stop pin; the nut dismounting and mounting module is arranged on the left side of the shackle body, the structure of the underwater dismounting and mounting module is novel, the underwater dismounting and mounting function of the ROV robot is guaranteed, the requirements of connection performance and use performance are met, the dismounting and mounting are more convenient, the underwater mounting operation can be completed only by simple pushing, pulling and rotating, the use value is high, and the underwater dismounting and mounting module can be repeatedly used and is produced in batches.

Description

Underwater dismounting module for special shackle

Technical Field

The invention relates to an accessory for connecting a mooring chain of a deep sea oil platform, in particular to an underwater dismounting module for a special ROV-H shackle.

Background

The mooring accessory used for underwater installation on the deep sea oil platform has the technical characteristics of high strength and toughness, and the external shape and the internal quality of the mooring accessory meet the relevant requirements of classification society. In the mooring device of the deep sea oil platform, because the depth of sea water is too large, the connecting piece of the artificial diving installation chain link is unrealistic, and the chain is lifted up to be installed, a special engineering ship is needed to be used, the working hours are long, the rent is expensive, and the comprehensive cost is extremely high. In this case, the deep sea robot ROV can be used to install such a connector directly under water, so that it is necessary to simplify the installation of the connector and to easily disassemble it. Because the operation precision and the camera resolution ratio of the underwater robot are limited, and in addition, the low visibility in the sea and the interference of factors such as water flow and surge are considered, the difficulty of the operation which can be realized on the shore is often increased by times underwater, so that each operation step needs to be simplified as much as possible, each factor which can influence the operation is considered in advance, and a special underwater operation module is designed to ensure that the ROV robot can realize the underwater dismounting and mounting of the shackle.

Disclosure of Invention

The invention aims to solve the technical problems and provides an underwater dismounting module for a special shackle.

The purpose of the invention is realized as follows: the utility model provides a dismouting module under water for special shackle, includes horizontal round pin dismouting module, nut dismouting module, its characterized in that: the transverse pin dismounting module comprises a transverse pin sleeve, an ROV transverse pin handle, a transverse pin stop pin, an ROV transverse pin stop pin, a transverse pin and a ball bearing; the transverse pin dismounting module is arranged on the right side of the shackle body, a flange plate of the transverse pin sleeve is connected to the shackle body through screws, a transverse pin is arranged in the transverse pin sleeve, a plurality of ball bearings are arranged on the transverse pin, an ROV transverse pin handle is arranged on the transverse pin extension rod, and the ball bearings are arranged on a step surface at the connecting position of the transverse pin extension rod and the tail end of the transverse pin; the transverse pin passes through the shackle body; an ROV transverse pin stop pin is arranged at the bottom of the transverse pin sleeve, and a transverse pin stop pin is arranged at the opening of the transverse pin sleeve; the nut dismounting module comprises a nut, an ROV nut handle, a nut sleeve, a nut stop pin, a guide rail, an ROV slide block stop pin, a slide block, an ROV slide block handle and a nut stop pin; the nut dismounting module is arranged on the left side of the shackle body, a bottom plate of the nut sleeve is connected to the shackle body through a screw, a nut is arranged in the nut sleeve, an ROV nut handle is arranged on the nut, a nut stop pin is arranged at the opening of the nut sleeve, a guide rail is arranged on the front side of the bottom plate of the nut sleeve, a sliding block is arranged on the guide rail, a nut stop pin is arranged in the sliding block, and an ROV sliding block handle is arranged on the front side of the sliding block; and an ROV sliding block stop pin is arranged on the side surface of the guide rail.

Preferably: and the transverse pin in the transverse pin dismounting module passes through the shackle body and is connected with the nut in the nut dismounting module.

Preferably: the ROV transverse pin handle, the ROV transverse pin stop pin, the ROV nut handle, the ROV sliding block stop pin and the ROV sliding block handle are arranged in a T shape or a circular shape convenient for the robot to grip.

Preferably: the slider set up to slider A and slider B, be provided with ROV slider stop pin between slider A and the slider B.

Preferably: the sliding block A, the sliding block B and the ROV sliding block stop pin are connected together through screws.

Preferably: the transverse pin stop pin and the nut stop pin are arranged into a plurality of stop pins or stop blocks.

The underwater mounting device has a novel structure, ensures that the ROV robot realizes the underwater mounting and dismounting function, meets the requirements of connection performance and use performance, is more convenient to mount and dismount, can finish underwater mounting operation only by simple push-pull and rotation, has high use value, can be repeatedly used, and can be produced in batches.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic left side view of the present invention;

FIG. 3 is a right side view of the present invention;

in the figure: 1. a shackle body; 2. a transverse pin dismounting module; 2-1, transverse pin sleeve; 2-2. ROV cross pin handle; 2-3, a transverse pin stop pin; 2-4, a transverse pin stop pin of the ROV; 2-5, transverse pin; 2-6, ball bearing; 3. a nut dismounting module; 3-1, a nut; 3-2, ROV nut handle; 3-3, nut sleeve; 3-4, nut stop pin; 3-5, a guide rail; 3-6, ROV slide block stop pin; 3-7, sliding block; 3-8. an ROV slider handle; and 3-9, stopping the pin by using the nut.

Detailed Description

The invention will be further described with reference to the accompanying drawings in which:

in the figure: the utility model provides a dismouting module under water for special shackle, includes horizontal round pin dismouting module 2, nut dismouting module 3, its characterized in that: the transverse pin dismounting module 2 comprises a transverse pin sleeve 2-1, an ROV transverse pin handle 2-2, a transverse pin stop pin 2-3, an ROV transverse pin stop pin 2-4, a transverse pin 2-5 and a ball bearing 2-6; the transverse pin dismounting module 2 is arranged on the right side of the shackle body 1, a flange plate of the transverse pin sleeve 2-1 is connected to the shackle body 1 through screws, a transverse pin 2-5 is arranged in the transverse pin sleeve 2-1, a plurality of ball bearings 2-6 are arranged on the transverse pin 2-5, an ROV transverse pin handle 2-2 is arranged on an extension rod of the transverse pin 2-5, and the ball bearings 2-6 are arranged on a step surface at the connecting position of the extension rod of the transverse pin 2-5 and the tail end of the transverse pin 2-5; the transverse pin 2-5 penetrates through the shackle body 1; an ROV transverse pin stop pin 2-4 is arranged at the bottom of the transverse pin sleeve 2-1, and a transverse pin stop pin 2-3 is arranged at the opening part of the transverse pin sleeve 2-1; the nut dismounting module 3 comprises a nut 3-1, an ROV nut handle 3-2, a nut sleeve 3-3, a nut stop pin 3-4, a guide rail 3-5, an ROV slider stop pin 3-6, a slider 3-7, an ROV slider handle 3-8 and a nut stop pin 3-9; the nut dismounting module 3 is arranged on the left side of the shackle body 1, a bottom plate of the nut sleeve 3-3 is connected to the shackle body 1 through a screw, a nut 3-1 is arranged in the nut sleeve 3-3, an ROV nut handle 3-2 is arranged on the nut 3-1, a nut stop pin 3-9 is arranged at the opening of the nut sleeve 3-3, a guide rail 3-5 is arranged on the front side of the bottom plate of the nut sleeve 3-3, a slide block 3-7 is arranged on the guide rail 3-5, a nut stop pin 3-4 is arranged in the slide block 3-7, and an ROV slide block handle 3-8 is arranged on the front side of the slide block 3-7; and an ROV sliding block stop pin 3-6 is arranged on the side surface of the guide rail 3-5. And the transverse pin 2-5 in the transverse pin dismounting module 2 passes through the shackle body 1 and is connected with the nut 3-1 in the nut dismounting module 3. The ROV transverse pin handle 2-2, the ROV transverse pin stop pin 2-4, the ROV nut handle 3-2, the ROV slider stop pin 3-6 and the ROV slider handle 3-8 are arranged in a T shape or a circular shape convenient for the robot to grip. The slide blocks 3-7 are arranged into a slide block A and a slide block B, and ROV slide block stop pins 3-6 are arranged between the slide block A and the slide block B. The sliding block A, the sliding block B and the ROV sliding block stop pin 3-6 are connected together through screws. The transverse pin stop pins 2-3 and the nut stop pins 3-9 are arranged into a plurality of stop pins or stop blocks.

During specific implementation, the transverse pin sleeve 2-1 in the transverse pin dismounting module 2 is mainly used for enabling the transverse pin 2-5 to be smoothly inserted and withdrawn, the problem that the transverse pin needs to be aligned after being completely pulled out is avoided, and meanwhile, the blocking pin or the blocking block is arranged at the opening of the transverse pin sleeve to prevent the transverse pin from sliding out of the transverse pin sleeve. When the transverse pin is inserted into and withdrawn from a specified position, the transverse pin stop pin is screwed in to prevent the transverse pin from sliding to cause interference when the chain is installed. In addition, considering underwater operation, the thrust applied by the ROV robot is limited, and the friction force between the transverse pin sleeve and the special shackle is further increased after the ROV robot is corroded by seawater. Therefore, in order to ensure that the transverse pin can be smoothly installed in place, the invention also designs a transverse pin sliding device, namely, a circle of ball bearings 2-6 is added at the position where the tail end of the transverse pin is connected with the extension rod, so that the sliding friction during pushing in the transverse pin is converted into rolling friction, the thrust required by installation is greatly reduced, and the ROV robot can be ensured to complete the installation task of the transverse pin under water. The nut sleeve in the nut dismounting module 3 is mainly used for enabling a nut to be smoothly inserted and withdrawn, and meanwhile, a stop block or a stop pin is arranged at the opening of the nut sleeve to prevent the nut from sliding out of the nut sleeve. After the nut 3-1 is screwed through the ROV nut handle, a nut stop pin 3-4 is needed for fixing. Considering that the nut stop pin is relatively small and an operator of the ROV robot is difficult to hold and perform insertion, the invention also designs a nut stop pin slider insertion device convenient for the ROV robot to operate, which comprises a guide rail 3-5, a nut stop pin 3-4, a slider 3-7, an ROV slider stop pin 3-6 and an ROV slider handle 3-8, wherein during the operation of the ROV robot, the ROV robot is used for screwing out the ROV slider stop pin 3-6, the slider 3-7 is in a movable state at the moment, then the ROV slider handle 3-8 is grasped, the nut stop pin 3-4 is pushed along the guide rail 3-5 until the nut stop pin is inserted into small holes reserved on the nut 3-1 and the transverse pin 2-5, and the fastening of the nut 3-1 is completed. The ROV slider stop pin 3-6 is primarily to prevent the nut stop pin 3-4 from falling out of the way and causing damage or interference when the nut is not rotated into position.

The concrete mounting mode, horizontal pin dismouting module: after being screwed out, the ROV transverse pin stop pin 2-4 rotates 90 degrees and is fixed in an opening state, the ROV transverse pin handle 2-2 is used for pulling out the transverse pin, and the ROV transverse pin stop pin 2-4 rotates 90 degrees in the reverse direction and is screwed into the groove of the transverse pin 2-5. An operator uses a travelling crane to hoist the lower end of an upper chain connected with an ROV-H shackle, positions the ROV-H shackle on a deep sea oil platform, operates an ROV robot to unscrew an ROV transverse pin stop pin 2-4 after a chain ring is installed in place, pushes a transverse pin 2-5 through an ROV transverse pin handle 2-2, and screws the ROV transverse pin stop pin after the transverse pin penetrates through the chain ring and is inserted into the bottom of a shackle body 1. The nut dismounting module: and after the ROV sliding block stop pin 3-6 is screwed out on the land, the ROV sliding block stop pin is rotated by 90 degrees and fixed in an opening state, the ROV sliding block handle 3-8 is used for pulling out the nut stop pin 3-4, then the ROV sliding block stop pin 3-6 is rotated by 90 degrees in the reverse direction and screwed into the locking sliding block 3-7, and then the ROV nut handle 3-2 is used for loosening the nut 3-1. An operator uses a crane to hoist the lower end of an upper chain connected with an ROV-H shackle, positions the ROV-H shackle on a deep sea oil platform, operates an ROV robot to grasp an ROV nut handle 3-2 to screw a nut 3-1 after a chain ring of a transverse pin is mounted in place, unscrews an ROV slider stop pin 3-6 and then rotates 90 degrees for fixation, pushes the ROV slider handle 3-8 into a nut stop pin 3-4 to reach the transverse pin hole, and finally rotates the ROV slider stop pin 3-6 reversely by 90 degrees and screws the ROV slider stop pin 3-7 into a locking slider to complete mounting.

The invention has wide application range, is suitable for H-shaped shackles, and can also be used for other underwater connecting shackles with transverse pins, such as D-shaped shackles, tail end shackles, Y-shaped shackles and the like; meanwhile, the cross pin is suitable for cross pins with various cross section shapes, including an oval cross pin, a round cross pin and a pear-shaped cross pin, and the principles are basically the same. The ROV robot only needs to operate a few steps: and the installation can be finished by rotating the ROV transverse pin stop pin, pushing the ROV transverse pin handle, rotating the ROV slide block stop pin, pushing the ROV slide block handle and rotating the ROV nut handle.

Claims

1. The utility model provides a dismouting module under water for special shackle, includes horizontal round pin dismouting module (2), nut dismouting module (3), its characterized in that: the transverse pin dismounting module (2) comprises a transverse pin sleeve (2-1), an ROV transverse pin handle (2-2), a transverse pin stop pin (2-3), an ROV transverse pin stop pin (2-4), a transverse pin (2-5) and a ball bearing (2-6); the transverse pin dismounting module (2) is arranged on the right side of the shackle body (1), a flange plate of the transverse pin sleeve (2-1) is connected to the shackle body (1) through screws, a transverse pin (2-5) is arranged in the transverse pin sleeve (2-1), a plurality of ball bearings (2-6) are arranged on the transverse pin (2-5), an ROV transverse pin handle (2-2) is arranged on an extension rod of the transverse pin (2-5), and the ball bearings (2-6) are arranged on a step surface at the connecting position of the extension rod of the transverse pin (2-5) and the tail end of the transverse pin (2-5); the transverse pin (2-5) passes through the shackle body (1); an ROV transverse pin stop pin (2-4) is arranged at the bottom of the transverse pin sleeve (2-1), and a transverse pin stop pin (2-3) is arranged at the opening part of the transverse pin sleeve (2-1); the nut dismounting module (3) comprises a nut (3-1), an ROV nut handle (3-2), a nut sleeve (3-3), a nut stop pin (3-4), a guide rail (3-5), an ROV slider stop pin (3-6), a slider (3-7), an ROV slider handle (3-8) and a nut stop pin (3-9); the nut dismounting module (3) is arranged on the left side of the shackle body (1), a bottom plate of the nut sleeve (3-3) is connected to the shackle body (1) through a screw, a nut (3-1) is arranged in the nut sleeve (3-3), an ROV nut handle (3-2) is arranged on the nut (3-1), a nut stop pin (3-9) is arranged at the opening of the nut sleeve (3-3), a guide rail (3-5) is arranged on the front side of the bottom plate of the nut sleeve (3-3), a sliding block (3-7) is arranged on the guide rail (3-5), a nut stop pin (3-4) is arranged in the sliding block (3-7), and an ROV sliding block handle (3-8) is arranged on the front side of the sliding block (3-7); and an ROV sliding block stop pin (3-6) is arranged on the side surface of the guide rail (3-5).

2. The underwater dismounting module for the special shackle as claimed in claim 1, wherein: and a transverse pin (2-5) in the transverse pin dismounting module (2) passes through the shackle body (1) and is connected with a nut (3-1) in the nut dismounting module (3).

3. An underwater dismounting module for special purpose shackles according to claim 1 or 2, characterized in that: the ROV transverse pin handle (2-2), the ROV transverse pin stop pin (2-4), the ROV nut handle (3-2), the ROV slider stop pin (3-6) and the ROV slider handle (3-8) are arranged in a T shape or a circular shape convenient for the robot to grip.

4. An underwater dismantling module for specialized shackle according to claim 1 or 2, characterised in that: the sliding blocks (3-7) are arranged into a sliding block A and a sliding block B, and ROV sliding block stop pins (3-6) are arranged between the sliding block A and the sliding block B.

5. The underwater dismounting module for the special shackle as claimed in claim 4, wherein: the sliding block A, the sliding block B and the ROV sliding block stop pin (3-6) are connected together through screws.

6. The underwater dismounting module for the special shackle as claimed in claim 1, wherein: the transverse pin stop pins (2-3) and the nut stop pins (3-9) are arranged into a plurality of stop pins or stop blocks.