Transformer oil gathering pipe spot-mounting tool and double-transformer oil gathering pipe spot-mounting tool

Abstract

The utility model discloses a transformer oil gathering pipe spot-mounting tool and a double-transformer oil gathering pipe spot-mounting tool, and belongs to the technical field of transformer oil gathering pipe welding. The transformer oil gathering pipe spot-mounting tool comprises a main pipe flange positioning tool, a pipe joint positioning tool and a supporting frame; the supporting frame comprises a supporting cross beam, two ends of the supporting cross beam are connected with limiting frames, and compression bolts are screwed on the limiting frames; the main pipe flange positioning tool comprises a second positioning flange, a second mounting hole is formed in the second positioning flange, a second bolt penetrates through the second mounting hole, and a positioning block is arranged on an inner ring; the pipe joint positioning tool comprises a first connecting rod and a plurality of positioning devices. The positioning device comprises a first positioning flange and a first mounting hole formed in the first positioning flange; a positioning table is arranged on one side of the first positioning flange; and a first bolt penetrates through the first mounting hole. The oil gathering pipe main pipe can be reliably and horizontally clamped, two transformer oil gathering pipes can be accurately assembled, a main pipe flange, a pipe joint and the oil gathering pipe main pipe can be accurately, conveniently and reliably positioned, the spot welding quality is guaranteed, and the production efficiency and quality are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of transformer oil manifold welding, in particular to a transformer oil manifold spot installation tool and a double transformer oil manifold spot installation tool. Background Art

[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. Its main components are a primary coil, a secondary coil, and an iron core (magnetic core). Its primary functions include voltage conversion, current conversion, impedance conversion, isolation, and voltage regulation (magnetic saturation transformer). Transformers are essential equipment for power transmission and distribution and are widely used in industry, agriculture, transportation, urban communities, and other fields.

[0003] During transformer operation, heat generated by losses in the windings and core must be dissipated promptly to prevent overheating and insulation damage. For small-capacity transformers, the ratio of surface area to volume is relatively large, so self-cooling can be used to dissipate heat through radiation and natural convection. Because transformer losses are proportional to its volume, as transformer capacity increases, its volume and losses increase by the cube of the core size, while the surface area only increases by the square of the size. Therefore, the core and windings of large-capacity transformers should be immersed in oil.

[0004] The cooling systems of larger capacity transformers require forced oil circulation and external cooling. This necessitates the use of an oil manifold, which collects the transformer's cooling oil. The main pipe of the manifold is typically made of square steel. During its manufacture, two flanges are welded to each end of the main pipe, along with several pipe joints welded to the sides. Before welding, each component must be aligned and manually spot welded. However, the current spot welding process for transformer manifolds suffers from low component fit precision and large dimensional deviations, leading to rework and repairs that hinder production efficiency and quality. Utility Model Content

[0005] In order to solve the problems of low matching accuracy and large dimensional deviation of components in the spot welding process of transformer oil pipes, which cause rework and repair and restrict production efficiency and quality, the utility model provides a transformer oil pipe spot installation tool and a double transformer oil pipe spot installation tool.

[0006] On the one hand, the present invention is achieved through the following technical solutions:

[0007] A transformer oil manifold point installation tool, the transformer oil manifold includes an oil manifold main pipe, main pipe flanges at both ends, and a plurality of pipe joints. The side wall of the oil manifold main pipe is provided with through holes corresponding to the pipe joints. The pipe joints include branch pipes and branch pipe flanges connected and installed at one end of the branch pipes. The tool also includes a main pipe flange positioning tool, a pipe joint positioning tool, and two support frames capable of supporting and positioning the oil manifold main pipe.

[0008] The support frame includes a support beam capable of horizontally supporting the main oil manifold, and limit frames are connected and installed at both ends of the support beam. A clamping bolt capable of abutting the main oil manifold is screwed through one limit frame;

[0009] The main pipe flange positioning tool includes a second positioning flange that matches the main pipe flange. The second positioning flange is provided with a plurality of second mounting holes corresponding to the mounting holes on the main pipe flange. Second bolts capable of connecting and mounting with the main pipe flange are passed through at least two of the second mounting holes. A plurality of positioning blocks capable of fitting and positioning with the inner wall of the oil manifold main pipe are positioned and mounted on the inner ring of the second positioning flange.

[0010] The pipe joint positioning tooling includes a first connecting rod and several positioning devices positioned and installed on the first connecting rod; the positioning device includes a first positioning flange that matches the branch pipe flange, and the first positioning flange is provided with several first mounting holes corresponding to the mounting holes on the branch pipe flange; one side of the first positioning flange is connected to a positioning platform that can be positioned and embedded in the through hole through a connecting tube; at least two first mounting holes are penetrated by first bolts that can be connected and installed with the branch pipe flange.

[0011] A further improvement of the present invention is that the support frame further comprises a bottom plate, which is connected and installed to the lower side of the supporting beam through two columns.

[0012] A further improvement of the present invention is that a plurality of rib plates are connected between the upright posts and the base plate.

[0013] A further improvement of the present invention is that the limiting frame is a channel steel structure with a vertical opening facing outward.

[0014] A further improvement of the present invention is that a pressing block is connected and installed on one side of the pressing bolt close to the oil manifold main pipe.

[0015] A further improvement of the present invention is that the inner ring of the second positioning flange is connected to a mounting tube matched with the oil manifold main pipe, and the positioning block is positioned and mounted on the inner wall of the mounting tube.

[0016] A further improvement of the present invention is that second positioning pins capable of being positioned and inserted into corresponding mounting holes on the branch pipe flange are inserted through at least two second mounting holes at four corners of the second positioning flange.

[0017] A further improvement of the present invention is that the first positioning flange is provided with first mounting holes at four corners, and two diagonal first mounting holes are penetrated by first positioning pins that can be positioned and inserted into corresponding mounting holes on the branch pipe flange.

[0018] A further improvement of the present invention is that a stop seat is connected between the positioning platform and the connecting tube, and the size of the stop seat is larger than the size of the through hole and smaller than the inner diameter of the branch pipe.

[0019] Another aspect of the present invention is achieved through the following technical solutions:

[0020] A dual transformer oil manifold point installation tool comprises at least two dual main pipe positioning tools and two transformer oil manifold point installation tools; the two oil manifold main pipes are connected by a plurality of main pipe connecting rods; the dual main pipe positioning tool comprises a second connecting rod and two positioning devices connected and mounted on the second connecting rod and capable of positioning corresponding pipe joints of the two oil manifold main pipes.

[0021] It can be seen from the above technical solutions that the beneficial effects of the present invention are:

[0022] The two ends of the oil collection pipe main body are supported by the support crossbeams on the two support frames, and the oil collection pipe main body is reliably and horizontally clamped by screwing in the compression bolts. The several positioning blocks on the inner ring of the second positioning flange are positioned in contact with the inner wall of the end of the oil collection pipe main body, and at least two second bolts are passed through the second mounting holes and connected to the corresponding mounting holes on the main pipe flange, so that the main pipe flange and the outer side of the end of the oil collection pipe main body can be accurately and reliably positioned, thereby ensuring the quality of the main pipe flange spot welding, avoiding rework and repair due to large dimensional deviations, and improving production efficiency and quality. The positioning platform is embedded in the through hole, and at least two first bolts are passed through the first mounting hole on the first positioning flange and connected to the corresponding mounting holes on the branch pipe flange, thereby ensuring the quality of the pipe joint spot welding, avoiding rework and repair due to large dimensional deviations, and improving production efficiency and quality.

[0023] It can achieve reliable horizontal clamping of the oil manifold main, can achieve accurate assembly of two transformer oil manifolds, and can achieve accurate, convenient and reliable positioning of the main flange, pipe joint and oil manifold main, ensuring the quality of spot welding and improving production efficiency and quality. The overall structure is simple, easy to implement and has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for the description. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 It is a schematic diagram of the use structure of a specific implementation method of the utility model.

[0026] Figure 2 This is a schematic diagram of the main pipe flange positioning tooling structure according to a specific implementation method of the present utility model.

[0027] Figure 3 This is a schematic diagram of the support frame structure of a specific implementation method of the present utility model.

[0028] Figure 4 This is a schematic structural diagram of a positioning device according to a specific embodiment of the present utility model.

[0029] Figure 5 This is a schematic diagram of the main pipe flange positioning tooling used in a specific embodiment of the present utility model.

[0030] In the accompanying drawings: 1. oil manifold main pipe, 11. main pipe flange, 12. pipe joint, 121. branch pipe, 122. branch pipe flange, 13. main pipe connecting rod, 14. through hole, 2. first connecting rod, 3. positioning device, 31. first positioning flange, 32. first positioning pin, 33. connecting cylinder, 34. stop seat, 35. positioning platform, 36. first mounting hole, 4. second connecting rod, 5. main pipe flange positioning tool, 51. second positioning flange, 52. mounting cylinder, 53. positioning block, 54. second positioning pin, 55. second mounting hole, 6. support frame, 61. bottom plate, 62. column, 63. rib plate, 64. support beam, 65. limit frame, 66. tightening bolt, 67. tightening block. DETAILED DESCRIPTION

[0031] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings in the specific embodiments. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this patent.

[0032] like Figure 1-5As shown, the utility model discloses a transformer oil manifold point installation tool. The transformer oil manifold includes a square steel pipe oil manifold main pipe 1, main pipe flanges 11 at both ends, and a plurality of pipe joints 12. A through hole 14 corresponding to the pipe joint 12 is opened on the upper side wall of the oil manifold main pipe 1. The pipe joint 12 includes a branch pipe 121 and a branch pipe flange 122 connected and installed at one end of the branch pipe 121. In order to ensure the reliability of welding the inner end of the branch pipe 121 with the through hole 14, a welding margin needs to be reserved, so the size of the through hole 14 needs to be slightly smaller than the inner diameter of the branch pipe 121. The transformer oil manifold point installation tool includes a main pipe flange positioning tool 5, a pipe joint positioning tool, and two support frames 6 that can horizontally support and position the oil manifold main pipe 1. The two support frames 6 are supported at both ends of the oil manifold main pipe 1 so that the oil manifold main pipe 1 is in the left and right front and back directions.

[0033] The support frame 6 includes a support beam 64 that horizontally supports the oil manifold main 1 (in the left-right direction). Limit brackets 65 are mounted on both ends of the support beam 64. A clamping bolt 66 is threaded through one of the limit brackets 65 and screwed onto it, ensuring it abuts the oil manifold main 1. The support beams 64 on the two support frames 6 support both ends of the oil manifold main 1, and by screwing in the clamping bolts 66, the oil manifold main 1 is securely clamped horizontally (front-to-back).

[0034] The main pipe flange positioning tool 5 includes a second positioning flange 51 that matches the main pipe flange 11. The second positioning flange 51 is provided with a plurality of second mounting holes 55 corresponding to the mounting holes on the main pipe flange 11. At least two of the second mounting holes 55 are penetrated by second bolts capable of connecting and mounting the main pipe flange 11. The inner ring of the second positioning flange 51 is provided with a plurality of positioning blocks 53 that can be positioned against the inner wall of the end of the oil manifold main pipe 1. By ensuring that the plurality of positioning blocks 53 on the inner ring of the second positioning flange 51 are aligned and positioned against the inner wall of the end of the oil manifold main pipe 1, and by ensuring that at least two second bolts pass through the second mounting holes 55 and connect and mount to the corresponding mounting holes on the main pipe flange 11, the main pipe flange 11 can be accurately and reliably positioned against the outer side of the end of the oil manifold main pipe 1. This ensures the quality of the spot welding of the main pipe flange 11, avoids rework and repair due to large dimensional deviations, and improves production efficiency and quality.

[0035] The pipe joint positioning tool includes a first connecting rod 2 and several positioning devices 3 positioned and installed on the first connecting rod 2. Multiple pipe joint positioning tooling can be used, and the number of positioning devices 3 of each pipe joint positioning tooling can be 2-5, which can be flexibly selected for use; the positioning device 3 includes a first positioning flange 31 that matches the branch pipe flange 122, and the first positioning flange 31 is provided with several first mounting holes 36 corresponding to the mounting holes on the branch pipe flange 122; one side of the first positioning flange 31 is connected to a positioning platform 35 that can be positioned and embedded in the through hole 14 through a connecting tube 33; at least two first mounting holes 36 are penetrated by first bolts that can be connected and installed with the branch pipe flange 122. By embedding the positioning platform 35 in the through hole 14, and passing at least two first bolts through the first mounting holes 36 on the first positioning flange 31 and connected and installed with the corresponding mounting holes on the branch pipe flange 122, accurate and reliable positioning of the pipe joint 12 and the upper through hole 14 of the oil manifold main 1 can be achieved, thereby ensuring the quality of the spot welding of the pipe joint 12, avoiding rework and repair due to large dimensional deviation, and improving production efficiency and quality.

[0036] This transformer oil manifold spot-mounting tool enables reliable horizontal clamping of the oil manifold main pipe 1, and enables precise, convenient, and reliable positioning of the main pipe flange 11, pipe joint 12, and the oil manifold main pipe 1, ensuring the quality of spot welding and improving production efficiency and quality. The overall structure is simple, easy to implement, and highly practical.

[0037] The support frame 6 further includes a base plate 61, which is connected to the lower side of the support beam 64 via two columns 62. The base plate 61 is fixed to the work platform by bolts, realizing the elevated clamping and positioning of the oil manifold main 1, which is more convenient for manual spot welding.

[0038] Among them, a plurality of ribs 63 are connected between the upright column 62 and the bottom plate 61, thereby improving the structural strength and bearing capacity of the support frame 6 and ensuring the reliability and safety of the clamping of the oil manifold main 1.

[0039] The limiting frame 65 is a channel steel structure with a vertical opening facing outwards, which has a simple structure, high strength and is easy to implement.

[0040] A clamping block 67 is attached to the side of the clamping bolt 66 near the oil manifold main 1. The clamping block 67 can achieve large-area compression of the side wall of the oil manifold main 1, improve the reliability of the positioning and clamping of the oil manifold main 1, and effectively avoid crushing the side wall of the oil manifold main 1.

[0041] Furthermore, the clamping block 67 and the end of the clamping bolt 66 are rotatably connected and installed, which can be a movable abutment or connected through a rotary support bearing. During the process of screwing in and tightening the clamping bolt 66, the clamping block 67 fits against the oil collecting pipe main 1 and does not rotate, thereby avoiding wear on the side wall of the oil collecting pipe main 1.

[0042] The inner ring of the second positioning flange 51 is connected to a square cylindrical mounting tube 52 that matches the oil manifold main pipe 1. The positioning block 53 is welded to the inner wall of the mounting tube 52. The end of the mounting tube 52 abuts against the end of the oil manifold main pipe 1 to achieve reliable axial positioning.

[0043] Furthermore, the positioning block 53 is welded to the middle position of the inner wall of the mounting tube 52 to ensure the reliability of positioning with the oil manifold main pipe 1 .

[0044] Furthermore, the mounting tube 52 is protruded near one end of the oil manifold main pipe 1, that is, it extends a short distance from the surface of the second positioning flange 51, so that a welding gap can be left inside the main pipe flange 11, effectively ensuring the height of the inner weld.

[0045] At least two second mounting holes 55 at the four corners of the second positioning flange 51 are provided with second positioning pins 54 that can be positioned and inserted into corresponding mounting holes on the branch pipe flange 122. The second positioning pins 54 can be provided in two diagonal second mounting holes 55 or in the four corner second mounting holes 55. Positioning with the main pipe flange 11 is achieved using the at least two second positioning pins 54, and then a secure connection with the main pipe flange 11 is achieved using the at least two second bolts, thereby improving installation convenience.

[0046] First mounting holes 36 are defined at the four corners of the first positioning flange 31. Two diagonal first mounting holes 36 are penetrated by first locating pins 32 that can be positioned and inserted into corresponding mounting holes on the branch pipe flange 122. First bolts are penetrated by two diagonal first mounting holes 36. The two diagonal first locating pins 32 are used to position the flange 122, and then the two diagonal first bolts are used to securely connect the flange 122, improving docking convenience.

[0047] Furthermore, the ends of the first and second locating pins 32 and 54 are chamfered to provide guidance and facilitate insertion. Both the first and second locating pins 32 and 54 have larger heads with anti-slip grooves to limit the insertion depth of the locating pins and facilitate assembly and disassembly of the locating pins.

[0048] A stopper 34 is connected between the positioning platform 35 and the connecting tube 33. The stopper 34 is larger than the through hole 14 and smaller than the inner diameter of the branch pipe 121. The stopper 34 is supported on the upper side of the through hole 14 to achieve the stopping function and ensure ease of use.

[0049] Furthermore, the connecting tube 33, the stop seat 34, and the positioning platform 35 are hollow structures that penetrate from top to bottom, thereby achieving a lightweight design, saving resources, and being easy to move and use, as well as to assemble and disassemble.

[0050] like Figure 1 As shown, the present invention also discloses a dual transformer oil manifold point installation tool, comprising at least two dual main pipe positioning tools and two transformer oil manifold point installation tools. The two oil manifold main pipes 1 are arranged parallel to each other and are connected by a plurality of main pipe connecting rods 13. The dual main pipe positioning tool includes a second connecting rod 4 and two positioning devices 3 connected to the second connecting rod 4 and capable of positioning the corresponding pipe joints 12 of the two oil manifold main pipes 1. The positioning devices 3 on the dual main pipe positioning tool are identical to the positioning devices 3 on the pipe joint positioning tool. The two dual main pipe positioning tools are used to position the two sets of pipe joints 12 at the front and rear ends, thereby achieving precise assembly of the two transformer oil manifolds and ensuring convenient and reliable welding of the main pipe connecting rods 13.

[0051] This transformer oil manifold spot installation tool and dual transformer oil manifold spot installation tool can achieve reliable horizontal clamping of the oil manifold main pipe 1, can achieve precise assembly of two transformer oil manifolds, and can achieve accurate, convenient, and reliable positioning of the main pipe flange 11, pipe joint 12, and oil manifold main pipe 1, ensuring the quality of spot welding and improving production efficiency and quality. The overall structure is simple, easy to implement, and has good practicality.

[0052] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.

[0053] The terms "upper," "lower," "outer," "inner," and the like, if used in the specification and claims of the present invention and the accompanying drawings, are used to distinguish relative positions and do not necessarily define them. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the present invention described herein can be implemented in sequences other than those illustrated or described herein. Furthermore, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.

[0054] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A transformer oil manifold point installation tool, the transformer oil manifold comprising an oil manifold main pipe (1), main pipe flanges (11) at both ends, and a plurality of pipe joints (12), the side wall of the oil manifold main pipe (1) being provided with through holes (14) corresponding to the pipe joints (12), the pipe joints (12) comprising a branch pipe (121) and a branch pipe flange (122) connected and mounted on one end of the branch pipe (121); characterized in that: It comprises a main pipe flange positioning tool (5), a pipe joint positioning tool and two support frames (6) capable of supporting and positioning the oil manifold main pipe (1); The support frame (6) includes a support beam (64) capable of horizontally supporting the oil collection pipe main pipe (1), and two ends of the support beam (64) are connected to and installed with a limit frame (65). A clamping bolt (66) capable of abutting the oil collection pipe main pipe (1) is screwed through the limit frame (65); The main pipe flange positioning tool (5) includes a second positioning flange (51) matched with the main pipe flange (11), the second positioning flange (51) is provided with a plurality of second mounting holes (55) corresponding to the mounting holes on the main pipe flange (11), at least two of the second mounting holes (55) are provided with second bolts capable of being connected and mounted with the main pipe flange (11), and the inner ring of the second positioning flange (51) is provided with a plurality of positioning blocks (53) capable of being positioned in contact with the inner wall of the oil manifold main pipe (1); The pipe joint positioning tool comprises a first connecting rod (2) and a plurality of positioning devices (3) positioned and mounted on the first connecting rod (2); the positioning device (3) comprises a first positioning flange (31) matched with the branch pipe flange (122); the first positioning flange (31) is provided with a plurality of first mounting holes (36) corresponding to the mounting holes on the branch pipe flange (122); one side of the first positioning flange (31) is connected to a positioning platform (35) capable of being positioned and embedded in the through hole (14) through a connecting tube (33); and first bolts capable of being connected and mounted to the branch pipe flange (122) are passed through at least two of the first mounting holes (36).

2. The transformer oil manifold point installation tool according to claim 1 is characterized in that: The support frame (6) further includes a bottom plate (61), which is connected and mounted to the lower side of the support beam (64) via two upright posts (62).

3. The transformer oil manifold point installation tool according to claim 2, characterized in that: A plurality of rib plates (63) are connected between the upright column (62) and the bottom plate (61).

4. The transformer oil manifold point installation tool according to claim 1, characterized in that: The limiting frame (65) is a channel steel structure with a vertical opening facing outwards.

5. The transformer oil manifold point installation tool according to claim 1 is characterized in that: A clamping block (67) is connected and installed on one side of the clamping bolt (66) close to the oil collecting pipe main (1).

6. The transformer oil manifold point installation tool according to claim 1, characterized in that: The inner ring of the second positioning flange (51) is connected to a mounting cylinder (52) that matches the oil collecting pipe main (1), and the positioning block (53) is positioned and mounted on the inner wall of the mounting cylinder (52).

7. The transformer oil manifold point installation tool according to claim 1 is characterized in that: At least two second mounting holes (55) at the four corners of the second positioning flange (51) are provided with second positioning pins (54) that can be positioned and inserted into corresponding mounting holes on the branch pipe flange (122).

8. The transformer oil manifold point installation tool according to claim 1, characterized in that: The first positioning flange (31) is provided with first mounting holes (36) at four corners, and two diagonally opposite first mounting holes (36) are penetrated by first positioning pins (32) that can be positioned and inserted into corresponding mounting holes on the branch pipe flange (122).

9. The transformer oil manifold point installation tool according to claim 1, characterized in that: A stop seat (34) is connected between the positioning platform (35) and the connecting tube (33). The size of the stop seat (34) is larger than the size of the through hole (14) and smaller than the inner diameter of the branch pipe (121).

10. A dual transformer oil manifold point installation tool, characterized in that: The invention comprises at least two dual-main pipe positioning fixtures and two transformer oil manifold point installation fixtures according to any one of claims 1 to 9; the two oil manifold main pipes (1) are connected by a plurality of main pipe connecting rods (13); the dual-main pipe positioning fixture comprises a second connecting rod (4) and two positioning devices (3) connected and mounted on the second connecting rod (4) and capable of positioning corresponding pipe joints (12) of the two oil manifold main pipes (1).

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