Embedded welding assembly device for nuclear power pipeline

Abstract

The utility model provides an embedded welding assembly device for nuclear power pipelines, which relates to the technical field of welding assembly devices and comprises an upper supporting block, rotating seats are symmetrically arranged at the bottom of the upper supporting block, telescopic rods are connected to the outer sides of the rotating seats, one end of each telescopic rod is connected with an air cylinder, and the other end of each telescopic rod is connected with an air cylinder. A fixed seat is arranged at the bottom of the air cylinder, a movable block is arranged at the bottom of the fixed seat, a guide rail is arranged in the movable block, a plurality of limiting strips are arranged at the top of the guide rail, limiting blocks are arranged on the two sides of the movable block, and the bottoms of the limiting blocks are connected with the limiting strips. The telescopic rod is controlled by the air cylinder to extend, and the rotating seat is arranged at the bottom of the upper supporting block in a matched manner, so that side supporting force is favorably provided for the assembly device, the stability of the assembly device is effectively ensured, the assembly device is prevented from inclining due to extrusion of external force, the welding precision is ensured, and the welding quality is improved. And the welding quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding assembly devices, in particular to an embedded welding assembly device for nuclear power pipelines. Background Art

[0002] In order to ensure nuclear safety, nuclear power plants have very high requirements for various equipment. Nuclear power plant pipelines are generally designed with many nozzles for measuring temperature and pressure. The nuclear power main pipeline is a pipeline connecting the nuclear reactor and the steam generator. It belongs to nuclear safety level I equipment, so the quality requirements for welding are very high. Misalignment, weld nodules, root protrusions, concave and metal oxidation are not allowed. At the same time, the dimensional accuracy, position accuracy, and form and position tolerance requirements of the welded nozzle seat are also very high, and even the overall roughness requirements of the inner surface of the final inner hole are also very high.

[0003] The existing welding assembly device is usually arranged inside the pipeline to provide support for the pipeline, which is convenient for welding the pipeline. However, the existing welding assembly device is only supported by a single jack. When the pipeline is squeezed by external force, it is easy to cause the assembly device to tilt, resulting in poor stability of the assembly device, affecting normal assembly use and reducing the quality of pipeline welding assembly. Utility Model Content

[0004] The utility model aims to solve the problem in the prior art that when the pipeline is squeezed by external force, the assembly device is prone to tilt, resulting in poor stability of the assembly device, affecting normal assembly use and reducing the quality of pipeline welding assembly, and proposes an embedded welding assembly device for nuclear power pipelines.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an embedded welding assembly device for nuclear power pipelines, comprising an upper support block, a rotating seat is symmetrically arranged at the bottom of the upper support block, a telescopic rod is connected to the outside of the rotating seat, one end of the telescopic rod is connected to a cylinder, a fixed seat is arranged at the bottom of the cylinder, a moving block is arranged at the bottom of the fixed seat, a guide rail is arranged inside the moving block, a plurality of limit bars are arranged on the top of the guide rail, limit blocks are arranged on both sides of the moving block, and the bottom of the limit block is connected to the limit bar.

[0006] Preferably, a mounting plate is provided at the bottom of the moving block, a lower supporting block is provided at the bottom of the mounting plate, mounting holes are provided on both sides of the mounting plate, a spring is provided inside the mounting hole, one end of the spring is connected to a push rod, through grooves are provided on both sides of the lower supporting block, and the push rod passes through the inner side of the through grooves.

[0007] Preferably, the top of the limit block is connected to a frame, the bottom of the frame is provided with a plurality of tension springs, and one end of the tension spring is connected to the top of the moving block.

[0008] Preferably, a limiting member is disposed inside the through groove, and a limiting ring is disposed outside the push rod.

[0009] Preferably, a jack is provided on the top of the mounting plate, a telescopic column is provided on the top of the jack, and one end of the telescopic column is connected to the bottom of the upper support block.

[0010] Preferably, a mounting groove is formed on the top of the lower support block, and the mounting plate is arranged inside the mounting groove.

[0011] Compared with the prior art, the advantages and positive effects of the utility model are:

[0012] 1. In the utility model, the telescopic rod is extended by controlling the cylinder, and the rotating seat is arranged at the bottom of the upper support block at the same time, which is beneficial to provide side support force for the assembly device, effectively ensuring the stability of the assembly device, avoiding the tilt of the assembly device caused by external force squeezing, thereby ensuring the accuracy of welding and improving the welding quality.

[0013] 2. In the utility model, the mounting plate is mounted in the mounting groove on the top of the lower support block, mounting holes are provided at both ends of the mounting plate, springs are installed inside the mounting holes, and the elasticity of the springs is utilized to allow the push rod to pass through the through grooves on both sides of the lower support block, and the limiting rings and limiting members on the outside of the push rod are beneficial to provide limiting, thereby facilitating the installation and disassembly of the assembly device, facilitating the maintenance and overhaul of the assembly device, and improving the flexibility and practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model provides a three-dimensional structural schematic diagram of an embedded welding assembly device for nuclear power pipelines;

[0015] Figure 2 Another structural schematic diagram of an embedded welding assembly device for nuclear power pipelines proposed by the utility model;

[0016] Figure 3 The utility model provides a partial structural schematic diagram of an embedded welding assembly device for nuclear power pipelines;

[0017] Figure 4 The utility model provides a schematic diagram of the exploded structure of the installation components of an embedded welding assembly device for nuclear power pipelines;

[0018] Figure 5The utility model provides an enlarged structural schematic diagram of position A of an embedded welding assembly device for nuclear power pipelines.

[0019] Legend: 1. Upper support block; 2. Telescopic column; 3. Jack; 4. Mounting plate; 5. Lower support block; 6. Rotating seat; 7. Telescopic rod; 8. Cylinder; 9. Limiting piece; 10. Push rod; 11. Spring; 12. Mounting hole; 13. Guide rail; 14. Moving block; 15. Tension spring; 16. Limiting strip; 17. Frame; 18. Limiting block. DETAILED DESCRIPTION

[0020] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0022] Example 1

[0023] like Figure 1-Figure 5 As shown, the utility model provides a technical solution: an embedded welding assembly device for nuclear power pipelines, comprising an upper support block 1, a rotating seat 6 is symmetrically arranged at the bottom of the upper support block 1, a telescopic rod 7 is connected to the outer side of the rotating seat 6, one end of the telescopic rod 7 is connected to a cylinder 8, a fixed seat is arranged at the bottom of the cylinder 8, a moving block 14 is arranged at the bottom of the fixed seat, a guide rail 13 is arranged inside the moving block 14, a plurality of limit bars 16 are arranged on the top of the guide rail 13, limit blocks 18 are arranged on both sides of the moving block 14, the bottom of the limit block 18 is connected to the limit bar 16, the top of the limit block 18 is connected to a frame 17, a plurality of tension springs 15 are arranged at the bottom of the frame 17, and one end of the tension spring 15 is connected to the top of the moving block 14.

[0024] In this embodiment, the telescopic rod 7 is extended by controlling the cylinder 8, and the rotating seat 6 is arranged at the bottom of the upper support block 1, which is beneficial to provide side support force for the assembling device, effectively ensuring the stability of the assembling device, avoiding external force squeezing and causing the assembling device to tilt, thereby ensuring the accuracy of welding and improving the welding quality. By pulling the frame 17 upward, the tension spring 15 is extended by force, thereby facilitating the movement of the moving block 14. The guide rail 13 is beneficial to providing guidance and is convenient for adjusting the position at any time according to the position of the assembling device. The bottom of the limit block 18 is clamped with the limit bar 16, which is beneficial to provide limitation, thereby ensuring the stability of the moving block 14.

[0025] Example 2

[0026] like Figure 1-Figure 5 As shown, a mounting plate 4 is provided at the bottom of the moving block 14, a lower support block 5 is provided at the bottom of the mounting plate 4, mounting holes 12 are provided on both sides of the mounting plate 4, springs 11 are provided inside the mounting holes 12, one end of the spring 11 is connected to a push rod 10, through grooves are provided on both sides of the lower support block 5, the push rod 10 passes through the inner side of the through groove, a limiting member 9 is provided inside the through groove, a limiting ring is provided on the outer side of the push rod 10, a jack 3 is provided at the top of the mounting plate 4, a telescopic column 2 is provided at the top of the jack 3, one end of the telescopic column 2 is connected to the bottom of the upper support block 1, a mounting groove is provided at the top of the lower support block 5, and the mounting plate 4 is provided inside the mounting groove.

[0027] In this embodiment, the telescopic column 2 is controlled to be raised and lowered by the jack 3, so that it is convenient to adjust the height of the assembly device according to the size of the inside of the pipeline. A mounting plate 4 is provided at the bottom of the jack 3, and the mounting plate 4 is clamped in the mounting groove at the top of the lower support block 5. Mounting holes 12 are opened at both ends of the mounting plate 4, and springs 11 are installed inside the mounting holes 12. By utilizing the elasticity of the spring 11, the push rod 10 is allowed to pass through the through grooves on both sides of the lower support block 5. The limiting ring and the limiting member 9 on the outside of the push rod 10 are conducive to providing limiting, thereby facilitating the installation and disassembly of the assembly device, facilitating the maintenance and repair of the assembly device, and providing flexibility and practicality of the device.

[0028] The working principle of this embodiment is as follows: when in use, first, a mounting plate 4 is provided at the bottom of the jack 3, and the mounting plate 4 is clamped in the mounting groove at the top of the lower support block 5. Mounting holes 12 are provided at both ends of the mounting plate 4, and springs 11 are installed inside the mounting holes 12. By utilizing the elasticity of the springs 11, the push rod 10 passes through the through grooves on both sides of the lower support block 5. The limiting rings and limiting members 9 on the outside of the push rod 10 are conducive to providing limiting positions, thereby facilitating the installation of the assembly device. Then the assembly device is placed inside the pipeline, and the jack 3 controls the telescopic column 2 to rise and fall, thereby facilitating the adjustment of the height of the assembly device according to the size of the inside of the pipeline. Finally, the cylinder 8 controls the telescopic rod 7 to extend, and at the same time cooperates with the rotating seat 6 to be arranged at the bottom of the upper support block 1, thereby facilitating the provision of side support force for the assembly device, pulling the frame 17 upward, and the tension spring 15 is extended under force, thereby facilitating the movement of the moving block 14, and the guide rail 13 is conducive to providing guidance, which is convenient for adjustment at any time according to the position of the assembly device.

[0029] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. An embedded welding assembly device for nuclear power pipelines, comprising an upper support block (1), characterized in that: A rotating seat (6) is symmetrically arranged at the bottom of the upper support block (1), a telescopic rod (7) is connected to the outer side of the rotating seat (6), one end of the telescopic rod (7) is connected to a cylinder (8), a fixed seat is arranged at the bottom of the cylinder (8), a moving block (14) is arranged at the bottom of the fixed seat, a guide rail (13) is arranged inside the moving block (14), a plurality of limit bars (16) are arranged at the top of the guide rail (13), and limit blocks (18) are arranged on both sides of the moving block (14), and the bottom of the limit block (18) is connected to the limit bar (16).

2. The embedded welding assembly device for nuclear power pipelines according to claim 1 is characterized in that: A mounting plate (4) is provided at the bottom of the moving block (14), a lower supporting block (5) is provided at the bottom of the mounting plate (4), mounting holes (12) are provided on both sides of the mounting plate (4), a spring (11) is provided inside the mounting hole (12), one end of the spring (11) is connected to a push rod (10), through grooves are provided on both sides of the lower supporting block (5), and the push rod (10) passes through the inner side of the through grooves.

3. The embedded welding assembly device for nuclear power pipelines according to claim 1 is characterized in that: The top of the limit block (18) is connected to a frame (17), the bottom of the frame (17) is provided with a plurality of tension springs (15), and one end of the tension spring (15) is connected to the top of the moving block (14).

4. The embedded welding assembly device for nuclear power pipelines according to claim 2 is characterized in that: A limiting member (9) is arranged inside the through groove, and a limiting ring is arranged outside the push rod (10).

5. The embedded welding assembly device for nuclear power pipelines according to claim 2 is characterized in that: A jack (3) is arranged on the top of the mounting plate (4), a telescopic column (2) is arranged on the top of the jack (3), and one end of the telescopic column (2) is connected to the bottom of the upper support block (1).

6. The embedded welding assembly device for nuclear power pipelines according to claim 2 is characterized in that: The top of the lower support block (5) is provided with a mounting groove, and the mounting plate (4) is arranged inside the mounting groove.

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