A cryogenic liquid tank assembly welding apparatus

CN224825412UActive Publication Date: 2026-10-09SHENNAN SCI & TECH BINHAI CO LTD
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Patent Information

Application Number
CN202522410339.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-13
Publication Date
2026-10-09
Estimated Expiration
2035-11-13

AI Technical Summary

Technical Problem

[0003]现有自动化焊接设备虽能实现焊缝跟踪与连续焊接,但仍存在显著技术短板:其一,现有的焊接装置往往只能焊接同一规格的罐体而无法根据实际生产需求焊接不同规格的罐体,其二,焊接前对焊口的清理往往直接影响到焊接后的密封效果,现有的对焊口的清理需要人工参与,精度虽相对较高但清洁效率低

Benefits of technology

1、底板上方固定连接设置有第二滑轨,第二滑轨上方固定连接设有一对第一固定件,第一固定件内侧滑动固定连接设置有螺杆,螺杆外侧滑动固定连接设置有第二移动件,使得该设备可以焊接不同规格的罐体。

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Abstract

The utility model discloses a kind of low-temperature liquid storage tank assembly welding equipment, it includes bottom plate, a pair of first fixed parts is fixedly connected above second slide rail, second moving part is slidably fixedly connected and arranged outside screw rod, first support rod is arranged above second fixed part, a pair of dust suction ports is inlaid and arranged in second support rod one end. Through the above structure, a pair of first fixed parts is fixedly connected above second slide rail, screw rod is slidably fixedly connected and arranged in first fixed part inside, second moving part is slidably fixedly connected and arranged outside screw rod, so that the equipment can weld tank body of different specifications, first support rod is arranged above second fixed part, adjusting shaft is fixedly connected and arranged on first support rod upper end, second support rod is slidably fixedly connected and arranged on adjusting shaft side, grinding disc is fixedly connected and arranged in second support rod one end, a pair of dust suction ports is inlaid and arranged in second support rod one end, so that the equipment can thoroughly clean before welding.
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Description

Technical Field

[0001] This utility model relates to the field of welding technology for cryogenic liquid storage tank components, and in particular to a welding equipment for cryogenic liquid storage tank components. Background Technology

[0002] Cryogenic liquid storage tanks, as core storage equipment for cryogenic media such as liquefied natural gas, liquid oxygen, and liquid nitrogen, are widely used in energy, chemical, and medical fields. The welding quality of their components directly determines the sealing performance, structural strength, and cryogenic resistance of the tank. Defects in welding can lead to major safety accidents such as media leakage and tank cracking. With the rapid development of the cryogenic energy industry, storage tanks are developing towards larger sizes and higher parameters, which places higher demands on the automation level, precision control, and material adaptability of welding equipment.

[0003] Although existing automated welding equipment can achieve weld seam tracking and continuous welding, there are still significant technical shortcomings: First, existing welding devices can often only weld tanks of the same specification and cannot weld tanks of different specifications according to actual production needs. Second, the cleaning of the weld joint before welding often directly affects the sealing effect after welding. Existing weld joint cleaning requires manual intervention, which is relatively accurate but has low cleaning efficiency. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a welding equipment for cryogenic liquid storage tank components, so that the equipment can weld tanks of different specifications and can thoroughly clean the weld joints before welding.

[0005] This utility model also provides a welding device for a cryogenic liquid storage tank assembly as described above, including a base plate, a second slide rail fixedly connected above the base plate, a pair of first fixing members fixedly connected above the second slide rail, a screw fixedly connected to the inner side of the first fixing members, a second moving member fixedly connected to the outer side of the screw, a second fixing member fixedly connected above the base plate, a first support rod directly above the second fixing member, an adjusting shaft fixedly connected to the upper end of the first support rod, a second support rod fixedly connected to the side of the adjusting shaft, a grinding disc fixedly connected to one end of the second support rod, and a pair of dust suction ports embedded in one end of the second support rod.

[0006] According to the present invention, a welding equipment for cryogenic liquid storage tank components is provided, wherein a pair of support plates are fixedly connected above the base plate, and a first slide rail is fixedly connected above the support plates.

[0007] According to the present invention, a welding equipment for cryogenic liquid storage tank components is provided above the base plate, and the bottom of the first moving parts is slidably and fixedly connected to the first slide rail.

[0008] According to the present invention, a welding equipment for cryogenic liquid storage tank components is provided above the base plate, and the two ends of the hydraulic rods are fixedly connected to the inner side of a pair of first moving parts.

[0009] According to the present invention, a welding device for a cryogenic liquid storage tank assembly is provided above the base plate, a pair of rotating shafts are provided above the base plate, a rubber wheel is fixedly connected to the outside of the rotating shafts, and the rotating shafts are slidably fixedly connected to the inside of the first moving part.

[0010] According to the present invention, a welding equipment for cryogenic liquid storage tank components is provided with a bearing fixedly connected above the second moving part, a welding robotic arm fixedly connected above the bearing, and a welding gun fixedly connected to the upper end of the welding robotic arm.

[0011] According to the cryogenic liquid storage tank assembly welding equipment of the present invention, a first motor is provided above the base plate, the output end of the first motor is fixedly connected to one end of the rotating shaft, and the first motor is fixedly connected to the outside of the first moving part.

[0012] According to the present invention, a welding equipment for cryogenic liquid storage tank components is provided, wherein a second motor is fixedly connected to the inner side of the second fixing member, the output end of the second motor is fixedly connected to one end of the screw, and the second motor is located above the base plate.

[0013] Beneficial effects: 1. A second slide rail is fixedly connected above the base plate. A pair of first fixing parts are fixedly connected above the second slide rail. A screw is slidably fixedly connected inside the first fixing parts, and a second moving part is slidably fixedly connected outside the screw, so that the equipment can weld tanks of different specifications.

[0014] 2. A second fixing component is fixedly connected above the base plate. A first support rod is set directly above the second fixing component. An adjusting shaft is fixedly connected to the upper end of the first support rod. A second support rod is slidably fixedly connected to the side of the adjusting shaft. A grinding disc is fixedly connected to one end of the second support rod. A pair of dust suction ports are embedded in one end of the second support rod, so that the equipment can thoroughly clean the weld joint before welding. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a perspective view of a welding device for cryogenic liquid storage tank components according to the present invention; Figure 2This is a front view of a welding equipment for cryogenic liquid storage tank components according to the present invention; Figure 3 This is a top view of a welding equipment for cryogenic liquid storage tank components according to the present invention; Figure 4 This is a perspective view of a welding device for a cryogenic liquid storage tank assembly welding equipment according to the present invention; Figure 5 This is a perspective view of a welding joint cleaning device for a cryogenic liquid storage tank assembly welding equipment according to this utility model.

[0016] Legend: 1. Base plate; 2. Support plate; 3. First slide rail; 4. First moving part; 5. Hydraulic rod; 6. Rotary shaft; 7. Rubber roller; 8. Second slide rail; 9. Second moving part; 10. Screw; 11. First fixing part; 12. Bearing; 13. Welding robotic arm; 14. Welding gun; 15. Second fixing part; 16. First support rod; 17. Adjusting shaft; 18. Second support rod; 19. Grinding disc; 20. Dust suction port; 21. First motor; 22. Second motor. Detailed Implementation

[0017] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0018] Reference Figure 1-5 This utility model discloses a welding device for cryogenic liquid storage tank components, which includes a base plate 1. A second slide rail 8 is fixedly connected above the base plate 1. A pair of first fixing members 11 are fixedly connected above the second slide rail 8. A screw 10 is slidably fixedly connected to the inner side of the first fixing member 11. A second moving member 9 is slidably fixedly connected to the outer side of the screw 10. A second fixing member 15 is fixedly connected above the base plate 1. A first support rod 16 is arranged directly above the second fixing member 15. An adjusting shaft 17 is fixedly connected to the upper end of the first support rod 16. A second support rod 18 is slidably fixedly connected to the side of the adjusting shaft 17. A grinding disc 19 is fixedly connected to one end of the second support rod 18. A pair of dust suction ports 20 are embedded in one end of the second support rod 18.

[0019] Specifically, the second moving part 9 has a thread on its inner side, which engages with the thread on the outer surface of the screw 10. When the second motor 22 drives the screw 10 to rotate, the second moving part 9 can move radially on the screw 10. The welding gun 14 fixed by the welding robotic arm 13 above the first fixed part 11 can be moved to a suitable position to weld tanks of different diameters. The function of the second slide rail 8 is to provide guidance for the second moving part 9 and restrict its lateral movement. The second support rod 18 can be adjusted by adjusting the tilt angle of the shaft 17, so that the grinding disc 19 fixed to it can be adjusted to fit tightly against the weld joint. When the tank rotates under the friction of the rubber wheel 7, the weld joint can be ground. The debris generated by grinding is sucked into the second support rod 18 through the dust suction port 20 for centralized processing later.

[0020] A pair of support plates 2 are fixedly connected above the base plate 1, and a first slide rail 3 is fixedly connected above the support plates 2.

[0021] Specifically, the function of the first slide rail 3 is to provide guidance for the first moving part 4 and prevent it from deviating from the track laterally.

[0022] Two pairs of first moving parts 4 are provided above the base plate 1, and the bottom of the first moving parts 4 is slidably and fixedly connected to the first slide rail 3.

[0023] A pair of hydraulic rods 5 are provided above the base plate 1, and the two ends of the hydraulic rods 5 are fixedly connected to the inner side of a pair of first moving parts 4.

[0024] Specifically, the hydraulic rod 5 is existing technology. Its function is to adjust the distance between the first moving parts 4 by extending and contracting, thereby adjusting the distance between the rotating shaft 6 fixed to the first moving parts 4 and the rubber roller 7 outside the rotating shaft 6. Since the tank is placed on the rubber roller 7, the change in the distance of the rubber roller 7 can support tanks of different specifications, making them more stable during the rotation welding process.

[0025] A pair of rotating shafts 6 are provided above the base plate 1. Rubber wheels 7 are fixedly connected to the outside of the rotating shafts 6, and the rotating shafts 6 are slidably fixed to the inside of the first moving part 4.

[0026] Specifically, the function of the rubber roller 7 is to fix and support the welded tank and provide power for the rotation of the tank.

[0027] A bearing 12 is fixedly connected to the top of the second moving part 9, a welding robotic arm 13 is fixedly connected above the bearing 12, and a welding gun 14 is fixedly connected to the upper end of the welding robotic arm 13.

[0028] Specifically, the bearing 12 can change the angle of the welding robot arm 13 to adapt to welding at different angles, and the welding gun 14 is used to weld the two sub-tanks into a whole.

[0029] A first motor 21 is provided above the base plate 1. The output end of the first motor 21 is fixedly connected to one end of the rotating shaft 6. The first motor 21 is fixedly connected to the outside of the first moving part 4.

[0030] Specifically, the first motor 21 provides power for the rotation of the rubber wheel 7.

[0031] The second motor 22 is fixedly connected to the inner side of the second fastener 15. The output end of the second motor 22 is fixedly connected to one end of the screw 10. The second motor 22 is located above the base plate 1.

[0032] Specifically, the second motor 22 provides power for the rotation of the screw 10.

[0033] Working principle: First, adjust the hydraulic rod 5 to a suitable length, place the sub-tanks sequentially above the rubber roller 7, adjust the distance between the weld joints, start the first motor 21 to drive the tank to rotate at high speed, and grind the weld joint with the grinding disc 19. The waste particles generated by grinding are sucked in through the dust suction port 20. Then, start the second motor 22, move the welding robotic arm 13 inward to a suitable position, adjust the welding gun 14 to the weld joint, and the first motor 21 drives the tank to rotate at a low speed and evenly. Finally, the welding gun 14 performs welding operations on the weld joint.

[0034] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A welding device for cryogenic liquid storage tank components, comprising a base plate (1), characterized in that: A second slide rail (8) is fixedly connected above the base plate (1). A pair of first fixing members (11) are fixedly connected above the second slide rail (8). A screw (10) is slidably fixedly connected to the inner side of the first fixing member (11). A second moving member (9) is slidably fixedly connected to the outer side of the screw (10). A second fixing member (15) is fixedly connected above the base plate (1). A first support rod (16) is set directly above the second fixing member (15). An adjusting shaft (17) is fixedly connected to the upper end of the first support rod (16). A second support rod (18) is slidably fixedly connected to the side of the adjusting shaft (17). A grinding disc (19) is fixedly connected to one end of the second support rod (18). A pair of dust suction ports (20) are embedded in one end of the second support rod (18).

2. The cryogenic liquid storage tank assembly welding equipment according to claim 1, characterized in that, A pair of support plates (2) are fixedly connected above the base plate (1), and a first slide rail (3) is fixedly connected above the support plates (2).

3. The cryogenic liquid storage tank assembly welding equipment according to claim 1, characterized in that, Two pairs of first moving parts (4) are provided above the base plate (1), and the bottom of the first moving parts (4) is slidably and fixedly connected to the first slide rail (3).

4. The cryogenic liquid storage tank assembly welding equipment according to claim 1, characterized in that, A pair of hydraulic rods (5) are provided above the base plate (1), and the two ends of the hydraulic rods (5) are fixedly connected to the inner side of a pair of first moving parts (4).

5. The cryogenic liquid storage tank assembly welding equipment according to claim 1, characterized in that, A pair of rotating shafts (6) are provided above the base plate (1). A rubber wheel (7) is fixedly connected to the outside of the rotating shaft (6). The rotating shaft (6) is slidably fixedly connected to the inside of the first moving part (4).

6. The cryogenic liquid storage tank assembly welding equipment according to claim 1, characterized in that, A bearing (12) is fixedly connected above the second moving part (9), a welding robot arm (13) is fixedly connected above the bearing (12), and a welding gun (14) is fixedly connected to the upper end of the welding robot arm (13).

7. The cryogenic liquid storage tank assembly welding equipment according to claim 1, characterized in that, A first motor (21) is provided above the base plate (1). The output end of the first motor (21) is fixedly connected to one end of the rotating shaft (6). The first motor (21) is fixedly connected to the outside of the first moving part (4).

8. The cryogenic liquid storage tank assembly welding equipment according to claim 1, characterized in that, The second fixing member (15) is fixedly connected to the inner side of the second motor (22), the output end of the second motor (22) is fixedly connected to one end of the screw (10), and the second motor (22) is located above the base plate (1).