Size control device for truss type connection node

Abstract

The utility model relates to the technical field of truss tower tools, in particular to a size control device of a truss type connecting joint, which comprises a bottom plate, a main pipe positioning plate and a branch pipe fixing mechanism, a plurality of main pipe bolts are arranged on the main pipe positioning plate, and the branch pipe fixing mechanism comprises a plurality of branch pipe positioning plates. A plurality of branch pipe bolts connected with the branch pipe flange are arranged on the branch pipe positioning plate, a temporary supporting plate is arranged at one end of the branch pipe positioning plate, the other end of the branch pipe positioning plate is connected with a frame, the frame is hinged to the main pipe positioning plate through a pin shaft, a supporting plate connected with the bottom plate is arranged on one side of the main pipe positioning plate, and the supporting plate is connected with a supporting reinforcing rib plate. The utility model has the following beneficial effects: the structure is simple, and the manufacturing and the processing are convenient; and the main pipe positioning plate and the branch pipe positioning plate can accurately position the main pipe and the branch pipe, so that the use of temporary accessories is greatly reduced, the labor intensity of workers is reduced, the welding quality is ensured, and the welding precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of truss tower tooling, in particular to a size control device for a truss type connection node. Background Art

[0002] The wind turbine tower is fixed with a truss structure as support. The branch structure of the truss (T, K, Y tubes) is connected and fixed to the reinforcement with flanges and bolts, rather than the traditional method of directly welding the reinforcement to the column. The flange and bolt connection method places extremely high demands on the final size of the prefabricated branch structure. The traditional size control method of welding a large number of temporary accessories (code plates and supports) cannot meet the requirements of the project. There are many temporary accessories, welding deformation is difficult to control, the workload of post-processing (cutting, grinding, MT testing, etc.) is large, and the pipe base material is easily damaged. Therefore, it is necessary to design size control tooling to reduce temporary accessories, reduce the labor intensity of workers, and accurately control the size. Utility Model Content

[0003] In order to solve the problems existing in the prior art, the utility model provides a size control device for a truss-type connection node, which is used to solve the problems of a large number of temporary attachments, labor intensity of workers, and improve welding accuracy.

[0004] To solve the above problems, the technical solution of the present invention is as follows: a size control device for a truss-type connection node, including a base plate, a main pipe positioning plate is provided on the base plate, a plurality of main pipe bolts connected to the main pipe flange are provided on the main pipe positioning plate, and the main pipe positioning plate is hinged with a branch pipe fixing mechanism.

[0005] Furthermore, the branch pipe fixing mechanism includes several branch pipe positioning plates, on which are provided several branch pipe bolts connected to the branch pipe flanges. A temporary support plate is provided at one end of the branch pipe positioning plate, and a frame is connected to the other end. The frame is hinged to the main pipe positioning plate through a pin shaft.

[0006] Furthermore, there are two branch pipe positioning plates, and the two branch pipe positioning plates are connected by tie bars.

[0007] Furthermore, the end of the branch pipe positioning plate is arc-shaped.

[0008] Furthermore, a support plate connected to the bottom plate is provided on one side of the main pipe positioning plate.

[0009] Furthermore, the support plate is connected to a support reinforcing rib plate.

[0010] Furthermore, the main pipe positioning plate is connected to a main reinforcing rib plate.

[0011] Furthermore, the end of the support plate is arc-shaped.

[0012] Compared with the existing technology, the utility model has the following beneficial effects: simple structure and easy manufacturing and processing; the main pipe positioning plate and branch pipe positioning plate can accurately position the main pipe and branch pipe, greatly reducing the use of temporary accessories, reducing the labor intensity of workers, ensuring welding quality, and improving welding accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the installation structure of the utility model.

[0015] In the figure: 1 base plate; 2 main pipe positioning plate; 3 main reinforcing rib plate; 4 main pipe bolts; 5 support plate; 6 support plate reinforcing rib plate; 7 branch pipe positioning plate; 8 tie rod; 9 frame; 10 temporary support plate; 11 branch pipe bolts; 12 pin shaft; 13 main pipe flange; 14 branch pipe flange; 15 roller frame; 16 main pipe; 17 branch pipe. DETAILED DESCRIPTION

[0016] like Figure 1 、 Figure 2 As shown, a dimensional control device for a truss-type connection node includes a base plate 1, a main pipe positioning plate 2 is provided on the base plate 1, the main pipe positioning plate 2 is connected to a main reinforcing rib plate 3, a plurality of main pipe bolts 4 connected to the main pipe flange 13 are provided on the main pipe positioning plate 2, and the main pipe positioning plate 2 is hinged with a branch pipe fixing mechanism.

[0017] The branch pipe fixing mechanism includes several branch pipe positioning plates 7, on which are provided several branch pipe bolts 11 connected to the branch pipe flange 14. A temporary support plate 10 is provided at one end of the branch pipe positioning plate 7, and the other end is connected to a frame 9. The frame 9 is hinged to the main pipe positioning plate 2 through a pin 12. There are two branch pipe positioning plates 7, and the ends of the branch pipe positioning plates 7 are arc-shaped. The two branch pipe positioning plates 7 are connected by a tie rod 8.

[0018] A support plate 5 connected to the bottom plate 1 is provided on one side of the main pipe positioning plate 2 . The end of the support plate 5 is arc-shaped, and a support reinforcing rib plate 6 is connected to the support plate 5 .

[0019] When using:

[0020] 1. Place the entire main pipe on the tooling support 15, find the longitudinal seam position of the main pipe 16, and adjust it to the 12 o'clock position and fix it;

[0021] 2. Use a crane to lift the main positioning plate 2 to the work station and adjust the height of the tooling level;

[0022] 3. Align the main pipe flange 13 with the main pipe positioning plate 2, insert the four bolt points into the main pipe bolts 4, and tighten them with a wrench to limit and fix them;

[0023] 4. Use a crane to connect the branch pipe positioning device to the main pipe positioning plate 2 via the pin 12;

[0024] 5. Use a crane to lift a branch pipe 17 and adjust its direction to align it with the branch pipe positioning plate 7;

[0025] 6. Insert the four bolt points on the branch pipe positioning plate 7 into the branch pipe bolts 11 and tighten them with a wrench to limit and fix them;

[0026] 7. Repeat steps 5 and 6 for the other branch pipe;

[0027] 8. Turn over the closed branch pipe positioning plate 7, align the branch pipe 17 with the main pipe 16, and use a gap gauge or total station to check the size gap, etc.;

[0028] 9. Open the tooling and trim the saddle mouth of the branch pipe;

[0029] 10. Turn over and close the branch pipe positioning plate 7, align the branch pipe 17 with the main pipe 16, and check the size gap, etc. If it does not meet the requirements, repeat steps 8 and 9 until the size is qualified;

[0030] 11. The branch pipe 17 is fixed by spot welding;

[0031] 12. The branch pipe positioning plate 7 and the main pipe 16 are welded and fixed with a temporary support plate 10;

[0032] 13. Flame preheating before welding and welding of joints;

[0033] 14. Post-weld NDT inspection;

[0034] 15. Use a cutting torch to remove the temporary support plate 10 and use a wrench to open the branch pipe bolts 11;

[0035] 16. Use a total station to check the dimensions and complete the precise welding of the main pipe 16 and the branch pipe 17.

[0036] The above specific implementation methods are only used to illustrate the technical solution of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to examples, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A dimensional control device for a truss-type connection node, comprising a base plate, characterized in that: A main pipe positioning plate is provided on the bottom plate, a plurality of main pipe bolts connected with the main pipe flange are provided on the main pipe positioning plate, and a branch pipe fixing mechanism is hingedly connected to the main pipe positioning plate.

2. The size control device according to claim 1, characterized in that: The branch pipe fixing mechanism includes several branch pipe positioning plates, on which are provided several branch pipe bolts connected to the branch pipe flanges. One end of the branch pipe positioning plate is provided with a temporary support plate, and the other end is connected to a frame. The frame is hinged to the main pipe positioning plate through a pin shaft.

3. The size control device according to claim 2, characterized in that: There are two branch pipe positioning plates, which are connected by tie bars.

4. The size control device according to claim 3, characterized in that: The end portion of the branch pipe positioning plate is arc-shaped.

5. The size control device according to claim 4, characterized in that: A supporting plate connected to the bottom plate is provided on one side of the main pipe positioning plate.

6. The size control device according to claim 5, characterized in that: The support plate is connected with a support reinforcing rib plate.

7. The size control device according to claim 6, characterized in that: The main pipe positioning plate is connected with a main reinforcing rib plate.

8. The size control device according to claim 7, characterized in that: The end portion of the support plate is arc-shaped.

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