Liner sleeving equipment for LNG (Liquefied Natural Gas) tank

Abstract

The invention provides LNG tank inner container sleeving equipment which comprises a discharging table, an LNG tank outer container body sleeving device, an LNG tank inner container sleeving device, an LNG tank inner container sleeving device and an LNG tank outer container sleeving device, and is characterized in that a sliding groove is formed in the top of the discharging table; the supporting frame is provided with a positioning machine structure and an LNG gas tank inner container body positioned by the positioning machine structure, and the LNG gas tank inner container body and the LNG gas tank outer container body are coaxially distributed; the sleeving mechanism comprises a clamping unit and a feeding unit, the clamping unit is used for clamping the outer container body of the LNG gas tank, the feeding unit is used for driving the clamping unit to reciprocate, and the movement direction of the clamping unit is coaxial with that of the outer container body of the LNG gas tank. According to the LNG gas tank outer container sleeving device, after the LNG gas tank outer container body is clamped through the clamping unit, the LNG gas tank outer container body can be driven to sleeve the LNG gas tank inner container body in cooperation with the feeding unit, and compared with a traditional air crane driving sleeving mode, the LNG gas tank outer container sleeving device is more stable, the overall sleeving speed is higher, and the overall working efficiency is improved.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of LNG gas tank production and manufacturing, and in particular to an LNG gas tank liner sleeve assembly device. Background Art

[0002] LNG gas tank is a container specially used for storing and transporting liquefied natural gas. It is widely used in vehicles and ships. Using LNG as fuel not only helps to reduce environmental pollution, but also improves energy utilization efficiency and reduces operating costs.

[0003] The tank body of an LNG gas tank is usually composed of two layers, the inner liner is used to directly store liquefied natural gas, while the outer liner plays a role of protection and cold preservation. There is an insulating structure between the two layers to keep the LNG in the tank in a low temperature state. After the inner liner is wrapped with insulation tape, it needs to be fitted with the outer liner and then welded. The inner liner and outer liner of the LNG gas tank are both made of metal and have a large volume, so the overall weight is also large. In the prior art, the inner liner and outer liner of the LNG gas tank are usually moved by an overhead crane to achieve the fitting of the two. However, the overhead crane is prone to shaking during use, and it is difficult to fit the inner liner and outer liner of the LNG gas tank together, which takes a lot of time and affects the overall work efficiency. Summary of the invention

[0004] 1. Technical problem to be solved by the invention: The present invention provides an LNG gas tank liner sleeve assembly device to solve the technical problems existing in the above-mentioned background technology.

[0005] 2. Technical solution: In order to achieve the above-mentioned purpose, the technical solution provided by the present invention is: an LNG gas tank liner sleeve assembly device, comprising: A discharge platform, wherein a chute is provided on the top of the discharge platform, and an outer liner of the LNG gas tank is placed in the chute; A support frame, on which a positioning machine structure and an LNG gas tank liner body positioned by the positioning machine structure are arranged, and the LNG gas tank liner body and the LNG gas tank outer liner body are coaxially distributed; The sleeve-fitting mechanism comprises a clamping unit and a feeding unit, wherein the clamping unit is used to clamp the outer liner body of the LNG gas tank, and the feeding unit is used to drive the clamping unit to reciprocate, and the movement direction is coaxial with the outer liner body of the LNG gas tank.

[0006] Furthermore, the slide groove is in the shape of an isosceles trapezoid or an isosceles triangle.

[0007] Furthermore, the positioning machine structure includes an assembly plate, one end of which is fixedly mounted on a support frame, and telescopic cylinders are respectively mounted on both sides, and a first arc-shaped clamping plate is fixedly mounted on the telescopic end of the telescopic cylinder.

[0008] Furthermore, the material clamping unit includes an inverted U-shaped plate, a guide slide is slidably installed on the horizontal part of the U-shaped plate, the guide slide extends in the vertical direction, and is hingedly connected to the first connecting rod on both sides, the other end of the first connecting rod is hingedly connected to a movable plate, one end of the movable plate is fixedly installed with a second arc-shaped clamping plate, and the other end is slidably connected to the first guide sliding rod vertically arranged on the vertical part of the U-shaped plate.

[0009] Furthermore, the inner wall of the slide groove, the clamping side of the first arc-shaped clamping plate, and the clamping side of the second arc-shaped clamping plate are all made of rubber.

[0010] Furthermore, the feeding unit includes a servo motor and a second guide slide rod fixedly mounted on a support frame, the second guide slide rod is two in number and is slidably connected to a connecting sleeve fixedly mounted on the U-shaped plate, a transmission rod is fixedly mounted on the rotating shaft of the servo motor, a disc is fixedly mounted on the transmission rod, a second connecting rod is eccentrically hingedly connected to the disc, and the other end of the second connecting rod is hingedly connected to the U-shaped plate.

[0011] Furthermore, a fan-shaped wheel is eccentrically fixedly installed on the transmission rod, a limiting plate is provided at the bottom of the fan-shaped wheel, the limiting plate is fixedly installed on the top of the guide slide plate, a spring is sleeved on the guide slide plate, one end of the spring is fixedly connected to the limiting plate, and the other end is fixedly connected to the U-shaped plate.

[0012] 3. Beneficial effects: The technical solution provided by the present invention has the following beneficial effects compared with the prior art: after the LNG gas tank outer liner body is extended and clamped by the clamping unit, the feeding unit will drive the LNG gas tank outer liner body to partially sleeve onto the LNG gas tank inner liner body, and then the clamping unit releases the clamping of the LNG gas tank outer liner body, and at the same time the feeding unit drives the clamping unit to move back to the original position, and then repeat the above steps, the LNG gas tank outer liner body can be gradually sleeved onto the LNG gas tank inner liner body, which is more stable than the traditional overhead crane driven sleeve method, the overall sleeve speed is faster, and the overall work efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the sleeve mechanism structure of the present invention; Figure 3 For the present invention Figure 2 The enlarged structural diagram at A in the middle; Figure 4 It is a schematic diagram of the structure of the discharge platform and the outer liner of the LNG gas tank of the present invention; Figure 5 It is a schematic diagram of the positioning machine structure and the LNG gas tank liner body structure of the present invention.

[0014] Reference numerals: 1. Unloading table; 101. Slide; 2. Support frame; 3. LNG tank outer liner body; 4. Positioning machine structure; 41. Assembly plate; 42. Telescopic cylinder; 43. First arc-shaped clamping plate; 5. Fitting mechanism; 51. Clamping unit; 511. U-shaped plate; 512. Guide slide plate; 513. First connecting rod; 514. Movable plate; 515. Second arc-shaped clamping plate; 516. First guide slide rod; 517. Fan-shaped wheel; 518. Limiting plate; 519. Spring; 52. Feeding unit; 521. Servo motor; 522. Second guide slide rod; 523. Connecting sleeve; 524. Transmission rod; 525. Disc; 526. Second connecting rod; 6. LNG tank inner liner body. DETAILED DESCRIPTION

[0015] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0016] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "page", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0017] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0018] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", "provided with", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example

[0019] See attached Figure 1-5 , an LNG gas tank liner sleeve assembly device, comprising: A discharge platform 1, wherein a chute 101 is provided on the top of the discharge platform 1, and an LNG gas tank outer liner body 3 is placed in the chute 101; A support frame 2, on which a positioning machine structure 4 and an LNG gas tank liner body 6 positioned by the positioning machine structure 4 are arranged, and the LNG gas tank liner body 6 and the LNG gas tank outer liner body 3 are coaxially distributed; The sleeve fitting mechanism 5 includes a clamping unit 51 and a feeding unit 52. The clamping unit 51 is used to clamp the LNG tank outer liner body 3, and the feeding unit 52 is used to drive the clamping unit 51 to reciprocate, and the movement direction is coaxial with the LNG tank outer liner body 3.

[0020] In this embodiment, the LNG tank outer liner body 3 is first placed in the slide groove 101 opened on the top of the discharge platform 1, and the LNG tank outer liner body 3 is pushed to slide in the slide groove 101 so that a part of it extends to the outside of the discharge platform 1, and then the LNG tank inner liner body 6 is positioned by the positioning machine structure 4. At this time, the LNG tank outer liner body 3 and the LNG tank inner liner body 6 are coaxially distributed, and then the part of the LNG tank outer liner body 3 extending to the outside of the discharge platform 1 is clamped by the clamping unit 51, and then the feeding unit 52 drives the clamping unit 51 to move first in the direction close to the LNG tank inner liner body 6, and the LNG tank outer liner body 3 is positioned. The liner body 3 keeps moving synchronously, and can be partially sleeved on the LNG gas tank inner liner body 6. Then the clamping unit 51 releases the clamping of the LNG gas tank outer liner body 3. At the same time, the feeding unit 52 drives the clamping unit 51 to move back to the original position, and then repeats the above-mentioned steps of sleeve-fitting the LNG gas tank outer liner body 3 and the LNG gas tank inner liner body 6. The LNG gas tank outer liner body 3 can be gradually sleeved on the LNG gas tank inner liner body 6, and the sleeve-fitting of the LNG gas tank outer liner body 3 and the LNG gas tank inner liner body 6 is completed. Compared with the traditional overhead crane driven sleeve-fitting method, it is more stable, the overall sleeve-fitting speed is faster, and the overall work efficiency is improved.

[0021] In the above embodiment, the slide groove 101 is in the shape of an isosceles trapezoid or an isosceles triangle, and can be used to place LNG gas tank outer liner bodies 3 with different radii and the same specifications.

[0022] The positioning machine structure 4 includes an assembly plate 41 , one end of which is fixedly mounted on the support frame 2 , and telescopic cylinders 42 are respectively mounted on both sides, and a first arc-shaped clamping plate 43 is fixedly mounted on the telescopic end of the telescopic cylinder 42 .

[0023] In this embodiment, the LNG gas tank liner body 6 is first put on the assembly plate 41, and one end of it is abutted against the support frame 2, and then the two telescopic cylinders 42 are started to push the two first arc-shaped clamping plates 43 respectively until the first arc-shaped clamping plates 43 abut against the inner wall of the LNG gas tank liner body 6, thereby completing the positioning of the LNG gas tank liner body 6.

[0024] The clamping unit 51 includes an inverted U-shaped plate 511, and a guide slide plate 512 is slidably installed on the horizontal part of the U-shaped plate 511. The guide slide plate 512 extends in the vertical direction, and is hingedly connected to the first connecting rod 513 on both sides. The other end of the first connecting rod 513 is hingedly connected to a movable plate 514, and one end of the movable plate 514 is fixedly installed with a second arc-shaped clamping plate 515, and the other end is slidably connected to the first guide slide rod 516 vertically arranged on the vertical part of the U-shaped plate 511.

[0025] In this embodiment, after the guide slide plate 512 is driven to slide downward on the horizontal part of the U-shaped plate 511, the first connecting rod 513 will pull the movable plate 514 to make the movable plate 514 slide on the first guide slide rod 516, thereby making the two second arc-shaped clamping plates 515 approach each other, so as to clamp the LNG gas tank outer liner body 3. Similarly, after the guide slide plate 512 is driven to slide upward on the horizontal part of the U-shaped plate 511, the two second arc-shaped clamping plates 515 will move away from each other, loosening the clamping of the LNG gas tank outer liner body 3.

[0026] It should be noted that the inner wall of the slide groove 101, the clamping side of the first arc-shaped clamping plate 43, and the clamping side of the second arc-shaped clamping plate 515 are all made of rubber to avoid scratches on the LNG tank.

[0027] The feeding unit 52 includes a servo motor 521 fixedly mounted on the support frame 2 and a second guide slide rod 522. The number of the second guide slide rods 522 is two, and they are slidably connected to the connecting sleeve 523 fixedly mounted on the U-shaped plate 511. A transmission rod 524 is fixedly mounted on the rotating shaft of the servo motor 521, and a disc 525 is fixedly mounted on the transmission rod 524. A second connecting rod 526 is eccentrically hingedly connected to the disc 525, and the other end of the second connecting rod 526 is hingedly connected to the U-shaped plate 511.

[0028] In this embodiment, after the servo motor 521 is started, the transmission rod 524 and the disc 525 fixed thereon rotate synchronously, thereby driving the second connecting rod 526 to swing back and forth. The second connecting rod 526 then pulls the U-shaped plate 511 and cooperates with the sliding connection between the connecting sleeve 523 and the second guide slide rod 522 to drive the U-shaped plate 511 to reciprocate.

[0029] A sector wheel 517 is eccentrically fixedly mounted on the transmission rod 524, a limiting plate 518 is provided at the bottom of the sector wheel 517, the limiting plate 518 is fixedly mounted on the top of the guide slide 512, a spring 519 is sleeved on the guide slide 512, one end of the spring 519 is fixedly connected to the limiting plate 518, and the other end is fixedly connected to the U-shaped plate 511.

[0030] In this embodiment, when the servo motor 521 is started to drive the transmission rod 524 and the disc 525 to rotate, the fan wheel 517 also rotates eccentrically synchronously. When the outer side of the fan wheel 517 pushes the limit plate 518, the guide slide plate 512 can slide downward on the horizontal part of the U-shaped plate 511. When the inner side of the fan wheel 517 pushes the limit plate 518, combined with the elastic force of the spring 519, the guide slide plate 512 can slide upward on the horizontal part of the U-shaped plate 511. That is, after the servo motor 521 is started, it can not only drive the two second arc-shaped clamping plates 515 to clamp the LNG gas tank outer liner body 3, but also drive the LNG gas tank outer liner body 3 to approach the LNG gas tank inner liner body 6 for fitting.

[0031] When the present invention is used, firstly, the outer liner body 3 of the LNG gas tank is placed in the slide groove 101 opened on the top of the unloading platform 1, and a part of it is extended to the outside of the unloading platform 1, and then the inner liner body 6 of the LNG gas tank is sleeved on the assembly plate 41, and one end of it is abutted against the support frame 2, and then the two telescopic cylinders 42 are started, and the two first arc-shaped clamping plates 43 are respectively pushed to abut against the inner wall of the inner liner body 6 of the LNG gas tank, so that the positioning of the inner liner body 6 of the LNG gas tank can be completed. At this time, the outer liner body 3 of the LNG gas tank and the inner liner body 6 of the LNG gas tank are The LNG tank liner body 6 is coaxially distributed, and then the servo motor 521 is started to drive the fan wheel 517 to rotate eccentrically. When the outer side of the fan wheel 517 pushes the limit plate 518, the guide plate 512 can slide downward on the horizontal part of the U-shaped plate 511, and the first connecting rod 513 will pull the movable plate 514 to slide on the first guide slide rod 516, so that the two second arc clamping plates 515 are close to each other, so that the LNG tank liner body 3 can be clamped. At the same time, the disc 525 The second connecting rod 526 can be driven to swing by the second connecting rod 526, and the second connecting rod 526 can pull the U-shaped plate 511, and cooperate with the sliding connection between the connecting sleeve 523 and the second guide slide rod 522, so that the U-shaped plate 511 can be driven to move toward the direction close to the LNG tank liner body 6 first, and the LNG tank liner body 3 can keep moving synchronously, and can be connected to a part of the LNG tank liner body 6, and then when the inner side of the fan-shaped wheel 517 pushes the limit plate 518, and cooperates with the elastic force of the spring 519, the guide slide plate 512 slides upward on the horizontal part of the U-shaped plate 511, and at this time, the two second arc-shaped clamping plates 515 will move away from each other, loosening the clamping of the LNG gas tank outer liner body 3. At the same time, the disc 525 can drive the second connecting rod 526 to swing back after rotating, and the U-shaped plate 511 can be driven to recover, and then the above-mentioned steps of fitting the LNG gas tank outer liner body 3 and the LNG gas tank inner liner body 6 are repeated, and the LNG gas tank outer liner body 3 can be gradually fitted on the LNG gas tank inner liner body 6.

[0032] The above-described embodiments only express a certain implementation mode of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the patent scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

[0033] It should be noted that the above contents belong to the technical cognition scope of the inventor. Since the technical contents in this field are vast and too complicated, the above contents of this application do not necessarily constitute prior art.

Claims

1. An LNG tank liner sleeve assembly device, characterized in that: include: A discharge platform (1), wherein a chute (101) is provided on the top of the discharge platform (1), and an LNG gas tank outer liner body (3) is placed in the chute (101); A support frame (2), wherein a positioning machine structure (4) and an LNG gas tank liner body (6) positioned by the positioning machine structure (4) are arranged on the support frame (2), and the LNG gas tank liner body (6) and the LNG gas tank outer liner body (3) are coaxially distributed; A sleeve-fitting mechanism (5), the sleeve-fitting mechanism (5) comprising a clamping unit (51) and a feeding unit (52), the clamping unit (51) being used to clamp the LNG gas tank outer liner body (3), the feeding unit (52) being used to drive the clamping unit (51) to reciprocate, and the movement direction is coaxial with the LNG gas tank outer liner body (3).

2. The LNG tank liner sleeve assembly device according to claim 1 is characterized in that: The slide groove (101) is in the shape of an isosceles trapezoid or an isosceles triangle.

3. The LNG tank liner sleeve assembly device according to claim 1 is characterized in that: The positioning machine structure (4) comprises an assembly plate (41), one end of the assembly plate (41) is fixedly mounted on the support frame (2), and telescopic cylinders (42) are respectively mounted on both sides, and a first arc-shaped clamping plate (43) is fixedly mounted on the telescopic end of the telescopic cylinder (42).

4. The LNG tank liner sleeve assembly device according to claim 1 is characterized in that: The material clamping unit (51) comprises an inverted U-shaped plate (511), a guide slide plate (512) being slidably mounted on the horizontal portion of the U-shaped plate (511), the guide slide plate (512) extending in the vertical direction, and both sides of the guide slide plate (512) being hingedly connected to a first connecting rod (513), the other end of the first connecting rod (513) being hingedly connected to a movable plate (514), one end of the movable plate (514) being fixedly mounted with a second arc-shaped clamping plate (515), and the other end being slidably connected to a first guide slide rod (516) vertically arranged on the vertical portion of the U-shaped plate (511).

5. The LNG tank liner sleeve assembly device according to any one of claims 1 to 4, characterized in that: The inner wall of the slide groove (101), the clamping side of the first arc-shaped clamping plate (43), and the clamping side of the second arc-shaped clamping plate (515) are all made of rubber.

6. The LNG tank liner sleeve assembly device according to claim 4 is characterized in that: The feeding unit (52) comprises a servo motor (521) fixedly mounted on the support frame (2) and a second guide slide rod (522), wherein the second guide slide rod (522) is provided in two numbers and is slidably connected to a connecting sleeve (523) fixedly mounted on the U-shaped plate (511), a transmission rod (524) is fixedly mounted on the rotating shaft of the servo motor (521), a disk (525) is fixedly mounted on the transmission rod (524), a second connecting rod (526) is eccentrically hingedly connected to the disk (525), and the other end of the second connecting rod (526) is hingedly connected to the U-shaped plate (511).

7. The LNG tank liner sleeve assembly device according to claim 6 is characterized in that: A sector wheel (517) is eccentrically fixedly mounted on the transmission rod (524); a limit plate (518) is disposed at the bottom of the sector wheel (517); the limit plate (518) is fixedly mounted on the top of the guide slide plate (512); a spring (519) is sleeved on the guide slide plate (512); one end of the spring (519) is fixedly connected to the limit plate (518); and the other end of the spring (519) is fixedly connected to the U-shaped plate (511).

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