CN219337491U

CN219337491U - Liquefied natural gas unloading arm rotary joint maintenance device

Info

Publication number: CN219337491U
Application number: CN202320300810.3U
Authority: CN
Inventors: 杜瑞浩; 贾康; 张耀化
Original assignee: Yitong Natural Gas Co ltd
Current assignee: Yitong Natural Gas Co ltd
Priority date: 2023-02-24
Filing date: 2023-02-24
Publication date: 2023-07-14
Anticipated expiration: 2033-02-24

Abstract

The utility model provides a liquefied natural gas unloading arm rotary joint maintenance device which comprises a workbench and side plates, wherein the side plates are arranged on the surface of the workbench; the surface of the workbench is connected with a positioning block, the surface of the positioning block is connected with a threaded rod in a penetrating manner, one end of the threaded rod is connected with a bearing block, and one end of the threaded rod, which is close to the bearing block, is connected with a rotating block; according to the utility model, the liquefied natural gas discharging arm rotary joint is placed between the two clamping plates on the surface of the workbench, the threaded rod is rotated to drive the rotating block at one end of the threaded rod to rotate along the positioning block, and then the clamping plates and the guide block are matched with each other, so that the bottom of the liquefied natural gas discharging arm rotary joint is firmly clamped by the two clamping plates, the liquefied natural gas discharging arm rotary joint is conveniently repaired, the joint is prevented from shaking during maintenance, and the safety maintenance of the discharging arm rotary joint is ensured.

Description

Liquefied natural gas unloading arm rotary joint maintenance device

Technical Field

The utility model belongs to the field of liquefied natural gas, and particularly relates to a liquefied natural gas discharging arm rotary joint maintenance device.

Background

The LNG unloading arm is a loading and unloading device, and when an LNG ship arrives at a dock of an LNG receiving station, LNG is transferred to a storage tank of the receiving station by means of an on-board unloading pump through the liquid phase unloading arm and an unloading pipeline. When the discharge arm reaches the operational cycle, the swivel joint on the arm needs to be serviced. The rotary joint comprises a rotary joint inner ring, a rotary joint outer ring, a track inner ring, balls and a track outer ring which are sequentially arranged between the rotary joint inner ring and the outer ring from inside to outside, ball plugs on the inner ring and the outer ring of the rotary joint, a plug sealing ring between the rotary joint inner ring and the outer ring, and a plurality of bolt holes formed on the end surfaces of the rotary joint inner ring and the rotary joint outer ring;

at present, the maintenance mode of the liquefied natural gas unloading arm rotary joint in the market adopts direct placement to dismantle at the workbench, and because the structure inside the liquefied natural gas unloading arm rotary joint is more complicated, the unstable disassembly easily occurs during the disassembly, so that the sealing structure inside the liquefied natural gas unloading arm rotary joint is damaged, and further the maintenance cost is increased-!

In summary, the present utility model provides a repairing device for a rotary joint of an lng unloading arm to solve the above-mentioned problems.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a liquefied natural gas unloading arm rotary joint maintenance device, which aims to solve the problems that in the prior art, the maintenance mode of the liquefied natural gas unloading arm rotary joint in the market is directly placed on a workbench for disassembly, and the disassembly instability easily occurs during the disassembly due to the complex structure in the liquefied natural gas unloading arm rotary joint, so that the sealing structure in the liquefied natural gas unloading arm rotary joint is damaged, further the maintenance cost is increased, and the like.

The liquefied natural gas unloading arm rotary joint maintenance device comprises a workbench and side plates, wherein the side plates are arranged on the surface of the workbench;

the surface of workstation is connected with the locating piece, the surface through connection of locating piece has the threaded rod, the one end of threaded rod is connected with the accepting piece, the one end that the threaded rod is close to the accepting piece is connected with the rotating block, the opposite side of accepting piece is connected with the grip block, the bottom surface of grip block is connected with the guide block.

Preferably, the threaded rod and the rotating block are of an integrated structure, the threaded rod is in threaded connection with the positioning block, and the inner wall of the notch of the clamping plate is adhered with the rubber pad.

Preferably, the surface of the workbench, which is close to the guide block, is provided with a guide groove, and the clamping plate and the guide groove on the surface of the workbench form a sliding connection structure through the guide block.

Preferably, a positioning plate is connected to one side surface of the side plate, a storage box is connected to the outer side wall of the positioning plate, a butt joint block is connected to the inner side of the positioning plate, and the positioning plate is in butt joint with an opening on the surface of the side plate through the butt joint block.

Preferably, one side of the side plate, which is close to the butt joint block, is connected with a fixed block, the outer side wall of the fixed block is connected with a movable rod, one end of the movable rod is connected with a linkage plate, one side of the linkage plate is connected with two linkage springs, and the other end of the linkage spring is connected with the inner wall of the opening of the fixed block.

Preferably, a pin block is connected to the other side of the linkage plate, and the pin block and an opening corresponding to one side of the butt joint block form a jogged structure.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the liquefied natural gas discharging arm rotary joint is placed between the two clamping plates on the surface of the workbench, the threaded rod is rotated to drive the rotating block at one end of the threaded rod to rotate along the positioning block, and then the clamping plates and the guide block are matched with each other, so that the bottom of the liquefied natural gas discharging arm rotary joint is firmly clamped by the two clamping plates, the liquefied natural gas discharging arm rotary joint is conveniently repaired, the joint is prevented from shaking during maintenance, and the safety maintenance of the discharging arm rotary joint is ensured.

2. According to the utility model, the butt joint block at one side of the positioning plate is in butt joint with the opening at one side of the side plate, the storage box at one side of the positioning plate is driven to be assembled at one side of the side plate, then the pulled movable rod is loosened, and the storage box is firmly fixed at one side of the side plate through the mutual cooperation among the linkage plate, the linkage spring and the pin block, so that the parts detached from the rotary joint of the discharging arm can be conveniently stored, and the parts are prevented from being lost, so that the rotary joint of the discharging arm cannot be continuously used.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic cross-sectional view of a turning block of the present utility model;

FIG. 3 is a schematic cross-sectional view of the mounting of the cartridge of the present utility model;

fig. 4 is an enlarged schematic view of the present utility model a.

In the figure:

1. a work table; 2. a side plate; 3. a positioning block; 4. a threaded rod; 5. a receiving block; 6. a rotating block; 7. a clamping plate; 8. a guide block; 9. a positioning plate; 10. a storage box; 11. a butt joint block; 12. a fixed block; 13. a movable rod; 14. a linkage plate; 15. a linkage spring; 16. and a pin block.

Detailed Description

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.

As shown in fig. 1-4, the utility model provides a liquefied natural gas unloading arm rotary joint maintenance device, which comprises a workbench 1 and a side plate 2, wherein the side plate 2 is arranged on the surface of the workbench 1;

the surface of workstation 1 is connected with locating piece 3, and the surface through connection of locating piece 3 has threaded rod 4, and the one end of threaded rod 4 is connected with the joint piece 5, and the one end that threaded rod 4 is close to joint piece 5 is connected with rotatory piece 6, and the opposite side of joint piece 5 is connected with grip block 7, and the bottom surface of grip block 7 is connected with guide block 8.

Referring to fig. 2, the threaded rod 4 and the rotating block 6 are integrally formed, the threaded rod 4 is in threaded connection with the positioning block 3, and the inner wall of the notch of the clamping plate 7 is adhered with a rubber pad.

Referring to fig. 2, a guide groove is formed in the surface of the workbench 1, which is close to the guide block 8, and the clamping plate 7 forms a sliding connection structure with the guide groove on the surface of the workbench 1 through the guide block 8, and the rectangular guide block 8 slides along the guide groove on the surface of the workbench 1 to prevent the clamping plate 7 from angular offset.

Referring to fig. 3, a positioning plate 9 is connected to a side surface of the side plate 2, a storage box 10 is connected to an outer side wall of the positioning plate 9, a butt joint block 11 is connected to an inner side of the positioning plate 9, the positioning plate 9 is butt-jointed with an opening on the surface of the side plate 2 through the butt joint block 11, and parts detached from the joint are conveniently stored through the use of the storage box 10, so that loss is prevented.

Referring to fig. 4, a fixed block 12 is connected to a side of the side plate 2 near the butt joint block 11, a movable rod 13 is connected to an outer side wall of the fixed block 12, one end of the movable rod 13 is connected to a linkage plate 14, two linkage springs 15 are connected to one side of the linkage plate 14, and the other end of the linkage spring 15 is connected to an inner wall of an opening of the fixed block 12.

Referring to fig. 4, the other side of the linkage plate 14 is connected with a pin block 16, and the pin block 16 and an opening corresponding to one side of the butt joint block 11 form a fitting structure, so that the butt joint block 11 is conveniently and firmly fixed by fitting the pin block 16 and the opening corresponding to one side of the butt joint block 11.

The specific working principle is as follows: as shown in fig. 1-4, when the liquefied natural gas unloading arm rotary joint maintenance device is used, firstly, the liquefied natural gas unloading arm rotary joint is placed between two clamping plates 7 on the surface of a workbench 1, then a threaded rod 4 is rotated, a rotating block 6 at one end of the threaded rod 4 is driven to rotate along a positioning block 3, the clamping plates 7 are driven to advance towards the joint, and then a guide block 8 at the bottom surface of the clamping plates 7 is driven to slide along an opening on the surface of the workbench 1 until the clamping plates 7 are tightly contacted with the unloading arm rotary joint, so that the bottoms of the liquefied natural gas unloading arm rotary joint are firmly clamped by the two clamping plates 7, further, the liquefied natural gas unloading arm rotary joint is conveniently repaired, the joint is prevented from shaking during maintenance, and the safety maintenance of the unloading arm rotary joint is ensured; further through dock the butt joint piece 11 with the opening of curb plate 2 one side of locating plate 9 one side, the receiver 10 of drive locating plate 9 one side is assembled in one side of curb plate 2, loosen the movable rod 13 of pulling afterwards, linkage spring 15 is kick-backed this moment, drive linkage plate 14 of linkage spring 15 one end and carry out one end, and then drive the round pin piece 16 of linkage plate 14 one side and the opening of butt joint piece 11 one side and gomphosis, stabilize the receiver 10 in one side of curb plate 2, the part of conveniently dismantling the arm swivelling joint of unloading is stored, prevent that the part from losing, lead to the arm swivelling joint of unloading to be unable to continue to use, this is the characteristics of this liquefied natural gas arm swivelling joint maintenance device.

The embodiments of the present utility model have been shown and described for the purpose of illustration and description, it being understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made therein by one of ordinary skill in the art without departing from the scope of the utility model.

Claims

1. The utility model provides a liquefied natural gas unloading arm rotary joint maintenance device, includes workstation (1) and curb plate (2), its characterized in that: a side plate (2) is arranged on the surface of the workbench (1);

the surface of workstation (1) is connected with locating piece (3), the surface through connection of locating piece (3) has threaded rod (4), the one end of threaded rod (4) is connected with and accepts piece (5), the one end that threaded rod (4) is close to accepting piece (5) is connected with rotatory piece (6), the opposite side of accepting piece (5) is connected with grip block (7), the bottom surface of grip block (7) is connected with guide block (8).

2. The lng discharge arm swivel joint maintenance device of claim 1, wherein: the threaded rod (4) and the rotating block (6) are of an integrated structure, the threaded rod (4) is in threaded connection with the positioning block (3), and rubber pads are adhered to the inner wall of the notch of the clamping plate (7).

3. The lng discharge arm swivel joint maintenance device of claim 1, wherein: the surface of the workbench (1) close to the guide block (8) is provided with a guide groove, and the clamping plate (7) and the guide groove on the surface of the workbench (1) form a sliding connection structure through the guide block (8).

4. The lng discharge arm swivel joint maintenance device of claim 1, wherein: one side surface of curb plate (2) is connected with locating plate (9), the lateral wall of locating plate (9) is connected with receiver (10), the inboard of locating plate (9) is connected with butt joint piece (11), locating plate (9) dock through the opening on butt joint piece (11) and curb plate (2) surface.

5. The lng discharge arm swivel joint maintenance device of claim 1, wherein: one side of the side plate (2) close to the butt joint block (11) is connected with a fixed block (12), the outer side wall of the fixed block (12) is connected with a movable rod (13), and one end of the movable rod (13) is connected with a linkage plate (14).

6. The lng discharge arm swivel joint maintenance device of claim 5 wherein: two linkage springs (15) are connected to one side of the linkage plate (14), and the other ends of the linkage springs (15) are connected with the inner wall of the opening of the fixed block (12).

7. The lng discharge arm swivel joint maintenance device of claim 5 wherein: the other side of the linkage plate (14) is connected with a pin block (16), and the pin block (16) and an opening corresponding to one side of the butt joint block (11) form a jogged structure.