CN218971570U

CN218971570U - Fixed lock of rotary joint of discharging arm

Info

Publication number: CN218971570U
Application number: CN202221304744.9U
Authority: CN
Inventors: 吴志平; 陆文龙; 张治国; 李振; 雷江开; 崔强; 王秀全
Original assignee: National Pipe Network Group Beihai Lng Co ltd; China Oil and Gas Pipeline Network Corp
Current assignee: National Pipe Network Group Beihai Lng Co ltd; China Oil and Gas Pipeline Network Corp
Priority date: 2022-05-27
Filing date: 2022-05-27
Publication date: 2023-05-05
Anticipated expiration: 2032-05-27

Abstract

The utility model discloses a fixed lock of a rotary joint of a discharging arm, which comprises an upper lock frame and a lower lock frame, wherein the upper lock frame is fixed on an upper rotary part of the rotary joint of the discharging arm, the lower lock frame is fixed on a lower rotary part of the rotary joint of the discharging arm, the upper lock frame is provided with a limiting hole, the lower lock frame is provided with a limiting rod, and the upper end of the limiting rod can extend into the limiting hole; the fixed lock of the rotary joint of the discharging arm solves the problem that the discharging arm is influenced by lateral wind when in a storage position and repeatedly rotates in the horizontal direction.

Description

Fixed lock of rotary joint of discharging arm

Technical Field

The utility model relates to the technical field of petrochemical industry, in particular to a fixed lock for a rotary joint of a discharging arm.

Background

By the year 1 of 2020, 22 LNG receiving stations have been built in China, and the receiving capacity is 9035 ten thousand tons/year. Compared with pipeline gas, the LNG has the characteristics of convenience in transportation, flexibility in maneuvering, safety and high efficiency, so that the LNG gradually becomes the most active natural gas supply form. In the process equipment facility of the LNG receiving station, the unloading arm is an important device for connecting an LNG carrier with an in-station inlet pipe network and is used for unloading LNG from the LNG carrier into the in-station inlet pipe network, and the unloading arm utilizes a hydraulic drive unloading crane pipe to complete the three-dimensional action of unloading in a matching way. The discharge arm has three modes, namely a storage position, a drive mode and a float mode. In a driving mode, the hydraulic control system is matched with the rotary joint to rotate, so that the upward, downward and left and right directions of the discharging arm are adjusted to finish the arm alignment work; the floating mode is selected in the unloading process, the position of the unloading arm is automatically adjusted along with the ship, and the unloading arm freely moves by utilizing the rotary joint, wherein the rotary joint at the upper part of the unloading arm can freely rotate in the horizontal direction; when the discharge arm is not in use, the discharge arm is retracted to the storage position. When in the storage position, because sea wind is big, the unloading arm can appear the gyration of horizontal direction repeatedly under the side direction wind-force effect, causes partial hydraulic pressure pipeline and instrument pipeline to be damaged, and repeated autogiration further causes a series of problems such as sealed leakage, and the swivel joint that returns to the original position again needs the manpower to stimulate the reset.

Disclosure of Invention

The fixed lock of the rotary joint of the discharging arm solves the problem that the discharging arm is influenced by lateral wind when in a storage position and repeatedly rotates in the horizontal direction.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the utility model provides a fixed lock of arm rotary joint of unloading includes lock frame and lower lock frame, it is fixed in the last rotary part of arm rotary joint of unloading to go up the lock frame, lower lock frame is fixed in the lower rotary part of arm rotary joint of unloading, it has the spacing hole to go up the lock frame, lower lock frame has the gag lever post, the upper end of gag lever post can stretch into in the spacing hole.

Further, a handle is arranged at the lower end of the limiting rod. The handle is convenient to operate the limiting rod, the limiting rod is convenient to be matched with the limiting hole, and the rotary joint of the discharging arm is locked.

Further, the locking frame comprises an upper fixing plate, an upper connecting plate and an arc plate, wherein the upper end of the upper connecting plate is fixedly connected with the upper fixing plate, the lower end of the upper connecting plate is fixedly connected with the arc plate, the upper fixing plate and the arc plate are respectively arranged on two sides of the upper connecting plate, the inner cambered surface of the arc plate is upwards arranged, and the limiting hole is formed in the arc plate. The upper fixing plate is fixed on the upper rotating part of the unloading arm rotating joint, and the arc-shaped plate is convenient for operating the limiting rod to enter the limiting hole.

Further, the upper fixing plate is provided with two upper fixing holes, and the two upper fixing holes are aligned with flange bolt holes of an upper rotating part of the rotary joint of the discharging arm respectively. The flange bolt hole and the bolt of the upper rotating part of the rotary joint of the discharging arm are fully utilized to install and fix the locking frame, the structure of the original equipment is not required to be modified, and the influence on the original equipment is small.

Further, down lock frame includes fixed plate, lower connecting plate and lower orifice plate down, the upper end fixed connection of lower connecting plate lower orifice plate, the lower extreme fixed connection of lower connecting plate lower fixed plate, lower fixed plate and lower orifice plate are located respectively the both sides of lower connecting plate, lower orifice plate is equipped with the pole hole, the upper end of gag lever post passes pole hole and sliding connection lower orifice plate. The lower fixed plate is fixed at the lower rotating part of the unloading arm rotating joint, the limiting rod slides downwards to withdraw from the limiting hole, and the limiting rod rises upwards to enter the limiting hole.

Further, the lower fixing plate is provided with two lower fixing holes, and the two lower fixing holes are aligned with flange bolt holes of a lower rotating part of the rotary joint of the discharging arm respectively. The flange bolt hole and the bolt of the lower rotary part of the rotary joint of the discharging arm are fully utilized to install and fix the lower lock frame, the structure of the original equipment is not required to be modified, and the influence on the original equipment is small.

Further, the lower lock frame further comprises a reset spring, a spring pressing rod and a spring baffle plate, wherein the spring baffle plate is fixed on the lower connecting plate, the spring baffle plate is arranged below the lower orifice plate, the spring pressing rod is transversely fixed at the upper end of the limiting rod, the spring pressing rod is arranged between the lower orifice plate and the spring baffle plate, and the reset spring is arranged between the spring pressing rod and the spring baffle plate. When the reset spring can enable the limiting rod to move to the lower side of the limiting hole, the upper end of the limiting rod automatically enters the limiting hole, and the upper lock frame and the lower lock frame are mutually locked and fixed.

Further, the lower connecting plate is fixedly provided with a limiting plate, the limiting plate is arranged below the spring baffle, the limiting plate is provided with a long slot hole, the limiting rod is fixedly provided with a limiting pin, the limiting pin is arranged between the spring baffle and the limiting plate, and the limiting pin can pass through the long slot hole in a descending mode. The limiting rod is pulled downwards to enable the limiting pin to pass through the long slot hole, then the limiting rod is rotated to enable the limiting pin to be clamped below the limiting plate, the limiting rod is prevented from automatically ascending under the acting force of the reset spring, the locking frame and the lower locking frame are enabled to be kept in an unlocking state, and the rotary joint of the discharging arm can work normally.

By adopting the technical scheme, the utility model has the beneficial effects that:

according to the utility model, the upper locking frame of the unloading arm rotary joint fixing lock is fixed on the upper rotary part of the unloading arm rotary joint, the lower locking frame is fixed on the lower rotary part of the unloading arm rotary joint, and the upper locking frame and the lower locking frame are mutually fixed when the limiting rod enters the limiting hole, so that the upper rotary part and the lower rotary part of the unloading arm rotary joint are mutually fixed and can not rotate any more, and the rotary joint is locked, so that the rotary joint can be locked through the upper locking frame and the lower locking frame when the unloading arm is in a storage position, and the problem that the unloading arm is repeatedly rotated in the horizontal direction due to the influence of side wind when in the storage position is solved. When the unloading arm is connected with a ship, the unloading arm rotary joint can be conveniently unlocked only by pulling the limiting rod downwards and withdrawing the upper end of the limiting rod from the limiting hole.

Drawings

FIG. 1 is a schematic view of the structure of a fixed lock for a rotary joint of a discharge arm according to the present utility model;

the novel lock comprises a 1-locking frame, 11-limiting holes, 12-upper fixing plates, 13-upper connecting plates, 14-arc plates, 15-upper fixing holes, 2-lower locking frames, 21-limiting rods, 22-lower fixing plates, 23-lower connecting plates, 24-lower pore plates, 25-lower fixing holes, 26-return springs, 27-spring baffles, 28-limiting plates and 29-handles.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, a fixed lock for a rotary joint of a discharging arm includes a locking frame 1 and a lower locking frame 2, the locking frame 1 includes an upper fixing plate 12, an upper connecting plate 13 and an arc plate 14, the upper fixing plate 12 is horizontally fixed on an upper rotating portion of the rotary joint of the discharging arm, the upper connecting plate 13 is vertically arranged, the upper end of the upper connecting plate 13 is fixedly connected with the upper fixing plate 12, the lower end of the upper connecting plate 13 is fixedly connected with the arc plate 14, the upper fixing plate 12 and the arc plate 14 are respectively arranged on two sides of the upper connecting plate 13, an intrados of the arc plate 14 is upward arranged, and a limiting hole 11 is arranged in the middle of the arc plate 14. The lower lock frame 2 comprises a lower fixing plate 22, a lower connecting plate 23, a lower orifice plate 24, a limiting rod 21, a reset spring 26, a spring pressing rod and a spring baffle 27, wherein the lower fixing plate 22 is horizontally fixed on a lower rotating part of a discharging arm rotating joint, the upper end of the lower connecting plate 23 is fixedly connected with the lower orifice plate 24, the lower end of the lower connecting plate 23 is fixedly connected with the lower fixing plate 22, the lower fixing plate 22 and the lower orifice plate 24 are respectively arranged on two sides of the lower connecting plate 23, the lower fixing plate 22 is vertically aligned with the upper fixing plate 12, the lower orifice plate 24 is arranged under the arc plate 14, and the lower orifice plate 24 is provided with a rod hole which can be vertically aligned with the limiting hole 11. The spring baffle 27 is fixed on the lower connecting plate 23, and the spring baffle 27 is located the below of lower orifice plate 24, and the spring baffle 27 is equipped with the through-hole, and the through-hole vertically aligns with the pole hole, and the gag lever post 21 passes through-hole and pole hole respectively, and gag lever post 21 can reciprocate in pole hole and through-hole, and the upper end of gag lever post 21 can stretch into in the spacing hole 11. The spring compression bar is horizontally fixed at the upper end of the limit bar 21 and is arranged between the lower orifice plate 24 and the spring baffle 27, the return spring 26 is arranged between the spring compression bar and the spring baffle 27, the return spring 26 is sleeved outside the limit bar 21, the upper end of the return spring 26 is fixed at the spring compression bar, and the lower end of the spring is fixed at the spring baffle 27.

The upper fixing plate 12 is provided with two upper fixing holes 15, the two upper fixing holes 15 are aligned with the flange bolt holes of the upper rotating part of the rotary joint of the discharging arm respectively, the lower fixing plate 22 is provided with two lower fixing holes 25, and the two lower fixing holes 25 are aligned with the flange bolt holes of the lower rotating part of the rotary joint of the discharging arm respectively. The lower locking frame 2 and the upper locking frame 1 are installed and fixed by fully utilizing the flange bolt holes and bolts of the lower rotating part and the upper rotating part of the unloading arm rotating joint, the structure of original equipment is not required to be modified, and the influence on the original equipment is small.

The lower connecting plate 23 is fixedly provided with a limiting plate 28, the limiting plate 28 is arranged below the spring baffle 27, the limiting plate 28 is provided with a round hole and a long slot hole, one end of the long slot hole is communicated with the round hole, the lower end of the limiting rod 21 penetrates through the round hole, the limiting rod 21 is fixedly provided with a limiting pin, the limiting pin is arranged between the spring baffle 27 and the limiting plate 28, the limiting pin descends to penetrate through the long slot hole, the lower end of the limiting rod 21 is horizontally provided with a handle 29, and the handle 29 is arranged below the limiting plate 28. The limiting rod 21 is pulled downwards to enable the limiting pin to pass through the long slot hole, then the limiting rod 21 is rotated to enable the limiting pin to be clamped below the limiting plate 28, the limiting rod 21 is prevented from automatically ascending under the acting force of the reset spring 26, and the upper lock frame 1 and the lower lock frame 2 are kept in an unlocking state.

Claims

1. The utility model provides a fixed lock of arm rotary joint of unloading, its characterized in that: including last lock frame and lower lock frame, go up the upper rotating part that the lock frame is fixed in the arm rotary joint that unloads, lower lock frame is fixed in the lower rotating part of arm rotary joint that unloads, it has the spacing hole to go up the lock frame, the lock frame has the gag lever post down, the upper end of gag lever post can stretch into in the spacing hole.

2. A discharge arm swivel lock as claimed in claim 1 wherein: the lower end of the limiting rod is provided with a handle.

3. A discharge arm swivel lock as claimed in claim 1 wherein: the locking frame comprises an upper fixing plate, an upper connecting plate and an arc plate, wherein the upper end of the upper connecting plate is fixedly connected with the upper fixing plate, the lower end of the upper connecting plate is fixedly connected with the arc plate, the upper fixing plate and the arc plate are respectively arranged on two sides of the upper connecting plate, the inner cambered surface of the arc plate is upwards arranged, and the limiting hole is formed in the arc plate.

4. A discharge arm swivel lock according to claim 3, wherein: the upper fixing plate is provided with two upper fixing holes, and the two upper fixing holes are respectively aligned with flange bolt holes of an upper rotating part of the rotary joint of the discharging arm.

5. A discharge arm swivel lock as claimed in claim 1 wherein: the lower lock frame comprises a lower fixing plate, a lower connecting plate and a lower pore plate, wherein the upper end of the lower connecting plate is fixedly connected with the lower pore plate, the lower end of the lower connecting plate is fixedly connected with the lower fixing plate, the lower fixing plate and the lower pore plate are respectively arranged on two sides of the lower connecting plate, the lower pore plate is provided with a rod hole, and the upper end of the limiting rod penetrates through the rod hole and is in sliding connection with the lower pore plate.

6. The discharge arm swivel lock of claim 5, wherein: the lower fixing plate is provided with two lower fixing holes, and the two lower fixing holes are respectively aligned with flange bolt holes of a lower rotating part of the rotary joint of the discharging arm.

7. The discharge arm swivel lock of claim 5, wherein: the lower lock frame further comprises a reset spring, a spring pressing rod and a spring baffle plate, wherein the spring baffle plate is fixed on the lower connecting plate, the spring baffle plate is arranged below the lower orifice plate, the spring pressing rod is transversely fixed at the upper end of the limiting rod, the spring pressing rod is arranged between the lower orifice plate and the spring baffle plate, and the reset spring is arranged between the spring pressing rod and the spring baffle plate.

8. The discharge arm swivel lock of claim 7 wherein: the lower connecting plate is fixedly provided with a limiting plate, the limiting plate is arranged below the spring baffle, the limiting plate is provided with a long slot hole, the limiting rod is fixedly provided with a limiting pin, the limiting pin is arranged between the spring baffle and the limiting plate, and the limiting pin descends to penetrate through the long slot hole.