CN217296912U

CN217296912U - Lifting lug structure

Info

Publication number: CN217296912U
Application number: CN202220937101.1U
Authority: CN
Inventors: 刘续; 初旭洋; 赵慧斌; 韩宇宁; 付劲龙; 宋东宏
Original assignee: SHANGHAI OCEAN OIL GAS BRANCH OF SINOPEC
Current assignee: SHANGHAI OCEAN OIL GAS BRANCH OF SINOPEC
Priority date: 2022-04-21
Filing date: 2022-04-21
Publication date: 2022-08-26
Anticipated expiration: 2032-04-21

Abstract

The utility model provides a lifting lug structure, which comprises a main pipe, wherein one end of the main pipe is welded on a lifted component, the outer wall of the main pipe is welded with two side pipes, and the two side pipes are symmetrical about the central axis of the main pipe; and a baffle is arranged at one end of each side pipe, which is far away from the main pipe. The utility model discloses an useful part lies in: the structure is simple, the design is reasonable, the stability of the whole structure is good, the strength is high, and the service life is long; meanwhile, the application range is wide, and the weight of the upper module block from thousands of tons to tens of thousands of tons can be borne.

Description

Lifting lug structure

Technical Field

The utility model relates to a lug structure.

Background

In recent years, as the force of exploration and development of ocean oil and gas resources is increased, the operation water depth of the jacket platform gradually goes from shallow water to middle and deep water, the size and the weight of the jacket platform are continuously increased, and higher requirements are provided for offshore hoisting. The existing jacket platform comprises a jacket and an upper block arranged on the upper part of the jacket, and a lifting lug is used as a key structure for lifting the upper block and is directly related to the safety of offshore installation operation of the upper block.

At present, the upper module block generally adopts an ear plate type lifting lug, and holes are formed in the ear plate and used for being connected with a hoisting rigging. However, as the weight of the upper module increases, the existing lug plate type lifting lug has the following defects:

(1) after the weight of the upper module exceeds a certain value, the lug plate type lifting lug cannot bear the weight, so that the lifting installation requirement cannot be met;

(2) after the thickness of the lug plate exceeds 50mm, the prefabrication of the lifting lug needs preheating, heat preservation and postweld heat treatment, and the larger the thickness of the lug plate is, the higher the requirement on a welding process is;

(3) the opening of the lifting lug requires machining, and the machining precision of the surface of the opening is higher.

Therefore, how to design a lifting lug structure suitable for hoisting an upper chunk to solve the problem of installation operation of a large upper chunk on the sea is a technical problem to be solved by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

To the above defect, the to-be-solved technical problem of the utility model is to provide a lug structure that stability is good, intensity is high, can be used for hoisting the upper portion chunk of bigger weight.

The utility model provides a lifting lug structure, which comprises a main pipe, wherein one end of the main pipe is welded on a lifted component, the outer wall of the main pipe is welded with two side pipes, and the two side pipes are symmetrical about the central axis of the main pipe; and a baffle is arranged at one end of each side pipe, which is far away from the main pipe.

Preferably, the suspended member is an upper block.

Preferably, the baffle plate further comprises a support plate extending along the axial direction of the side pipe, the support plate penetrates through the main pipe, the side edge of the support plate in the length direction is connected with the inner wall of the side pipe, and the side edge of the support plate in the width direction is connected with the baffle plate.

Preferably, the angle between the support plate and the central axis of the main tube is 40 °.

Preferably, the baffle is circular and has a diameter greater than the outer diameter of the side tube.

The utility model discloses an useful part lies in: the structure is simple, the design is reasonable, the stability of the whole structure is good, the strength is high, and the service life is long; meanwhile, the application range is wide, and the weight of the upper module block from thousands of tons to tens of thousands of tons can be borne.

Drawings

Fig. 1 is a perspective view of the shackle structure of the present invention;

fig. 2 is a side view of the shackle structure of the present invention;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 1;

fig. 4 is a front view of the lifting lug structure of the present invention;

fig. 5 is a sectional view taken along the line B-B in fig. 4.

Description of the element reference numerals:

1 suspended member

2 main pipe

3 side pipe

4 baffle

5 support plate

Detailed Description

The following describes the present invention in further detail with reference to the accompanying drawings. These embodiments are provided only for illustrating the present invention and are not intended to limit the present invention.

In the description of the present invention, it should be noted that the terms "top", "bottom", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

The utility model provides a lug structure as shown in figure 1, including the person in charge 2 of one end welding on being hung component 1, the welding has two side pipes 3 on being responsible for 2's the outer wall, and two side pipes 3 are symmetrical about the center pin of being responsible for 2. Specifically, the main pipe 2 is disposed vertically, and the side pipe 3 is disposed horizontally. A baffle 4 is provided in each side tube 3 at the end remote from the main tube 2. The baffle 4 is preferably circular and has a diameter greater than the outer diameter of the side tube 3. During hoisting, the hoisting rigging bypasses the side pipe 3 to realize the installation of the hoisted member 1; and baffle 4 can carry out spacing on the horizontal direction to the hoist and mount rigging, can effectively prevent the hoist and mount rigging and drop, and then realize the stable hoist and mount to being hung component 1. Further, the hoisted member 1 is a jacket platform upper block. Compared with the existing ear plate type lifting lug, the lifting lug structure of the utility model has the advantages of simple integral structure, reasonable design, good stability of the integral structure and high strength; meanwhile, the application range is wide, and the weight of the upper module block from thousands of tons to tens of thousands of tons can be borne.

For further reinforcing the structural stability of lug structure, as shown in fig. 2-4, the lug structure of the present invention further includes a support plate 5 extending along the axial direction of the side pipe 3, the support plate 5 runs through the main pipe 2, the side edge in the length direction is welded on the inner wall of the side pipe 3, and the side edge in the width direction is welded on the baffle 4. Preferably, each side tube 3 is composed of two semicircular tubes, which are wrapped around the outside of the support plate 5 and then welded to form the side tube 3. The angle between the support plate 5 and the central axis of the main pipe 2 is in particular 40 deg.. The overall strength and the stability that can increase lug structure set up like this, improve lug structure's bearing capacity, prevent that each part from crooked or warp at hoist and mount in-process, prolong lug structure's life.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims

1. A lifting lug structure is characterized by comprising a main pipe (2) with one end welded on a hung component (1), wherein two side pipes (3) are welded on the outer wall of the main pipe (2), and the two side pipes (3) are symmetrical about the central axis of the main pipe (2); and a baffle (4) is arranged at one end of each side pipe (3) far away from the main pipe (2).

2. The shackle structure according to claim 1, characterised in that the hoisted member (1) is an upper block.

3. The shackle structure according to claim 1, characterised by further comprising a support plate (5) extending in the axial direction of the side pipe (3), the support plate (5) penetrating the main pipe (2) and having a side in the length direction connected to the inner wall of the side pipe (3) and a side in the width direction connected to the baffle (4).

4. The shackle structure according to claim 3, characterised in that the angle between the support plate (5) and the centre axis of the main pipe (2) is 40 °.

5. The shackle structure according to claim 1, characterised in that the baffle (4) is circular and has a diameter which is larger than the outer diameter of the side tube (3).