Tool for clamping and fixing internal lead of transformer

Abstract

The utility model relates to a tool for clamping and fixing a lead inside a transformer, which comprises cross beams fixed on an upper clamping piece and a lower clamping piece of the transformer and a longitudinal beam for fixing the lead, and the two ends of the longitudinal beam are respectively connected with the two cross beams through first mortise and tenon joint structures to form a support frame for supporting the lead. At least two supporting frames are arranged in the routing direction of the lead, a connecting beam is arranged between every two adjacent supporting frames, and the two ends of each connecting beam are connected with the longitudinal beams of the two supporting frames through second mortise and tenon joint structures respectively. According to the utility model, multiple groups of support frames are arranged along the routing direction of the lead to support and fix the lead, so that the bearing capacity and the support stability of the lead are improved. The adjacent supporting frames are connected and fixed through the connecting beams, the structural strength between the supporting frames is improved, vibration and noise reduction is better, and supporting is more stable. And the cross beams and the longitudinal beams as well as the longitudinal beams and the connecting beams are connected and fixed through mortise and tenon joint structures, so that installation and assembly are convenient, time and labor are saved, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer lead fixing, in particular to a tool used for clamping and fixing the internal lead of a transformer. Background Art

[0002] At present, the traditional internal lead structure of domestic transformers basically adopts a bolt fixing structure, which selects laminated wood or laminated paperboard of different specifications and lengths, and fixes different types of wood pieces with nylon bolts or bakelite screws according to the internal wiring of the transformer, so as to achieve the effect of clamping and fixing the internal leads of the transformer. At present, this fixing structure is cumbersome to operate, and each fastening point must be fastened with thin and thick nuts. In the production process, nuts are often missed or some places are not fastened. In addition, the workshop process cannot be pre-installed in advance. After the transformer is out of the tank, the workshop needs to tighten the bolts twice, which greatly reduces the production efficiency.

[0003] Patent No. CN108206089B discloses a spliced ​​vibration-damping lead wire wooden frame used inside an oil-immersed transformer, including two crossbeams and a longitudinal beam. This solution uses two crossbeams to fix the upper and lower clamping plates of the transformer respectively. After the two ends of the longitudinal beam are connected to the two crossbeams through a mortise and tenon structure, the lead wire is fixed to the longitudinal beam, and the gap of the mortise and tenon structure is filled with elastic sealant. The non-rigid connection of the mortise and tenon structure plays a role in buffering and absorbing energy from the vibration of the transformer, and achieves the effect of vibration reduction and noise reduction on the basis of satisfying the lead wire support function.

[0004] Although the patent adopts the mortise and tenon structure to solve the problem of vibration reduction and noise reduction, the following problems still exist:

[0005] The mortise and tenon structure at the ends of the crossbeam and longitudinal beam of this patent is complex, and the processing steps are numerous, which makes the processing inconvenient; this patent fixes the lead by cutting a groove on the outer side of the longitudinal beam and using a baffle to fix the lead in the groove, and additional fixing operations are required during use, which is labor-intensive and material-intensive and inconvenient to operate; usually, a variety of leads need to be arranged in a transformer, but this patent fixes all the leads in one groove, and various leads are mixed, making it impossible to quickly distinguish the types of leads, which is inconvenient to plan and arrange the leads; this patent only uses one wooden frame to support a large number of leads, so the structural strength is low, the support is not stable enough, and the supporting effect is poor. Utility Model Content

[0006] The utility model aims at the deficiencies of the prior art and provides a mortise and tenon structure tooling with high structural strength and easy processing for fixing lead wire planning. The mortise and tenon structure is easy to install and assemble, can stably support and fix the lead wire, does not need to check the status of the bolts, and greatly improves production efficiency.

[0007] The utility model is realized through the following technical scheme: a tool for clamping and fixing the internal leads of a transformer, comprising two cross beams respectively fixed on an upper clamp and a lower clamp of the transformer and a longitudinal beam for fixing the leads, wherein the two ends of the longitudinal beam are respectively connected to the two cross beams through a first mortise and tenon structure to form a support frame, wherein at least two support frames are arranged along the routing direction of the leads, and a connecting beam is provided between adjacent support frames, and the two ends of the connecting beam are respectively connected to the longitudinal beams of the two support frames through a second mortise and tenon structure.

[0008] This solution sets up multiple groups of support frames along the routing direction of the lead to support and fix the lead, thereby improving the bearing capacity and support stability of the lead. Adjacent support frames are connected and fixed by connecting beams, which improves the structural strength between the support frames, better reduces vibration and noise, and makes the support more stable. In addition, the crossbeams and longitudinal beams, and the longitudinal beams and connecting beams are connected and fixed by mortise and tenon structures, which are easy to install and assemble, and do not require the installation and inspection of bolts, saving time and effort, and improving production efficiency.

[0009] As an optimization, at least two connecting beams are provided between adjacent support frames, the connecting beams are distributed along the height direction of the longitudinal beams, and clamping pieces for clamping the leads are provided between the upper and lower adjacent connecting beams. In this optimization scheme, multiple connecting beams further enhance the structural strength and stability of adjacent support frames, and the leads are further clamped and fixed by the clamping pieces between adjacent connecting beams, further improving the supporting and fixing effect of the leads.

[0010] As an optimization, the clamping member includes two clamping plates arranged opposite to each other, a clamping space is formed between the two clamping plates, and the two ends of the clamping plates are respectively connected to the upper and lower connecting beams through a third mortise and tenon structure. This optimization scheme clamps the lead wire through two clamping plates, has a simple structure, is easy to process, and the clamping plates are also connected and fixed to the connecting beam through the mortise and tenon structure, which is convenient for installation and assembly, and does not require installation bolts, further improving production efficiency.

[0011] As an optimization, the first mortise and tenon structure includes a first tenon set at the end of the longitudinal beam and a first mortise opened on the cross beam, and the first tenon and the first mortise are adapted to each other. The mortise and tenon structure of this optimization solution is simple and durable, easy to process, and improves processing efficiency.

[0012] As an optimization, the second mortise and tenon structure includes two second tenons arranged at the end of the connecting beam and two second mortises opened on the longitudinal beam, and the second tenons and the second mortises are adapted to each other. The mortise and tenon structure of this optimization scheme is simple and durable, has stable connection, is easy to process, and improves processing efficiency.

[0013] As an optimization, the third mortise and tenon structure includes a third tenon provided at the end of the splint and a third mortise opened on the connecting beam, and the third tenon and the third mortise are adapted to each other. The mortise and tenon structure of this optimization solution is simple and durable, easy to process, and improves processing efficiency.

[0014] As an optimization, a fixing through hole is opened on the longitudinal beam, and the diameter of the fixing through hole is adapted to the outer diameter of the lead. This optimization solution fixes the lead by directly opening a hole on the longitudinal beam, does not require an additional fixing structure and fixing process, saves labor and materials, and facilitates the routing of the lead.

[0015] As an optimization, the fixing through hole is a long hole extending along the height direction of the longitudinal beam. In this optimization solution, multiple leads can be passed through one fixing through hole, thereby improving the space utilization rate of the longitudinal beam.

[0016] As an optimization, a fixing through hole is provided between two adjacent second mortises on the longitudinal beam. In this optimization solution, the fixing through holes are spaced between the second mortises and the connecting beam, and different fixing through holes can be provided with a lead wire to achieve the effect of separating and planning different lead wires, which is convenient for personnel to distinguish and inspect.

[0017] As an optimization, bolt holes are provided on the cross beam, and the two cross beams are respectively connected with the upper clamp and the lower clamp by bolts. This optimization solution facilitates the disassembly and assembly of the structure.

[0018] The beneficial effects of the utility model are as follows: multiple groups of support frames are arranged along the routing direction of the leads to support and fix the leads, thereby improving the bearing capacity and support stability of the leads. Adjacent support frames are connected and fixed by multiple connecting beams, thereby improving the structural strength and stability between the support frames, improving the vibration reduction and noise reduction effects, and making the support more stable. In addition, the leads are further clamped and fixed by clamping members between adjacent connecting beams, thereby further improving the support and fixing effects of the leads. At the same time, by arranging multiple fixing through holes on the longitudinal beams, different types of leads can be inserted and fixed by connecting beam partitions between different fixing through holes, thereby facilitating personnel to distinguish and inspect the work.

[0019] The cross beams and longitudinal beams, the longitudinal beams and connecting beams, and the connecting beams and plywood are all connected and fixed by mortise and tenon structures. The installation and assembly are convenient, and there is no need to install or check bolts, which saves time and effort and greatly improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is an exploded view of the utility model;

[0021] Figure 2 It is a schematic diagram of the three-dimensional structure of the cross beam and the longitudinal beam;

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the longitudinal beam, the connecting beam and the clamping member;

[0023] Figure 4 The front and side views of the longitudinal beam;

[0024] Figure 5 The top view and side view of the beam;

[0025] Figure 6 The front view and top view of the connecting beam;

[0026] Figure 7 The front view and side view of the splint;

[0027] Figure 8 This is a front view of the utility model in use;

[0028] Fig. 9 This is a side view of the utility model in use;

[0029] Fig.10 It is a top view of the utility model in use state;

[0030] As shown in the figure:

[0031] 1. Upper clamp, 2. Lower clamp, 3. Support frame, 31. Crossbeam, 311. First mortise, 32. Longitudinal beam, 321. First tenon, 322. Second mortise, 4. Connecting beam, 411. Second tenon, 412. Third mortise, 5. Clamp, 51. Clamping plate, 511. Third tenon, 6. Lead, 7. Fixing through hole, 8. Bolt hole, 9. Angle steel. DETAILED DESCRIPTION

[0032] In order to clearly illustrate the technical features of this solution, this solution is described below through a specific implementation method.

[0033] like Figures 1 to 10 As shown, a tool for clamping and fixing the internal leads of a transformer includes two cross beams 31 respectively fixed on the upper clamp 1 and the lower clamp 2 of the transformer and a longitudinal beam 32 for fixing the leads 6, and the two ends of the longitudinal beam 32 are respectively connected to the two cross beams 31 through a first mortise and tenon structure to form a support frame 3 for supporting the leads.

[0034] Specifically, Figure 2 , 4 As shown in Figures 5 and 6, the first mortise and tenon structure is a straight tenon, including a first tenon 321 provided at the end of the longitudinal beam 32 and a first mortise 311 provided on the cross beam 31, and the first tenon 321 and the first mortise 311 are adapted to each other. In this embodiment, the cross beam 31 and the longitudinal beam 32 are both wooden structures, the first tenon 321 is a rectangular tenon, and the upper and lower ends of the longitudinal beam 32 are cut to form the first tenon 321. The first mortise 311 is a rectangular mortise adapted to the first tenon, and the first mortise 311 is provided at one end of the cross beam 31, and the first mortise is provided through the cross beam.

[0035] like Fig. 9As shown, bolt holes 8 are provided on the cross beam 31, and the two cross beams 31 are respectively connected with the upper clamp 1 and the lower clamp 2 by bolts. In this embodiment, the other end of the cross beam 31 is provided with two bolt holes 8 arranged side by side, and the outer walls of the upper clamp 1 and the lower clamp 2 are welded with angle steel 9, and screw holes are provided on the angle steel. The other end of the cross beam 31 is fixed to the angle steel 9 by bolts, which is convenient for disassembly and assembly.

[0036] like Figure 1 , 8 As shown, at least two support frames 3 are arranged along the routing direction of the lead wires, and a transverse connecting beam 4 is provided between adjacent support frames 3. The two ends of the connecting beam 4 are respectively connected to the longitudinal beams 32 of the two support frames 3 through a second mortise and tenon structure. In this embodiment, at least two connecting beams 4 are provided between adjacent support frames 3, and the connecting beams 4 are distributed along the height direction of the longitudinal beams 32.

[0037] Specifically, Figure 3 , 6 As shown, the second mortise and tenon structure is a double mortise, including two second tenons 411 set at the end of the connecting beam 4 and two second mortises 322 opened on the longitudinal beam 32, and the second tenons 411 and the second mortises 322 are adapted to each other. The connecting beam 4 described in this embodiment is a wooden structure, and the second tenon 411 is a rectangular tenon. The left and right ends of the connecting beam 4 are cut to form two second tenons 411, and a clamp is cut out between the two second tenons 411. The second mortise 322 is a rectangular mortise adapted to the second tenon, and the second mortise is set through the longitudinal beam. The skin between the two second mortises 322 and the clamp between the two second tenons 411 are staggered with each other, which increases the contact area of ​​the mortise and tenon and improves the connection stability.

[0038] Considering that when the number of support frames 3 is more than three, the left and right sides of the longitudinal beam 32 in the middle part need to be connected to the connecting beam 4, the length of the second mortise 322 of this embodiment should not be less than the sum of the lengths of the two second tenons 411 to ensure the stability of the connection between the longitudinal beam and the left and right connecting beams.

[0039] like Figure 1 , 8 As shown, a clamping member 5 for clamping the lead 6 is provided between two upper and lower adjacent connecting beams 4, and the lead is further clamped and fixed by the clamping member 5, thereby improving the fixing effect of the lead. In this embodiment, at least two clamping members 5 are distributed between the upper and lower connecting beams 4 along the length direction of the connecting beam 4, thereby further improving the fixing effect of the lead.

[0040] Specifically, Figure 3 , 7As shown, the clamping member 5 includes two vertical and oppositely arranged clamping plates 51, a clamping space is formed between the two clamping plates 51, and both ends of the clamping plates 51 are respectively connected to the upper and lower connecting beams 4 through a third mortise and tenon structure. The width of the clamping space in this embodiment is adapted to the outer diameter of the lead 6.

[0041] Specifically, Figure 3 As shown, the third mortise and tenon structure is a single-sided shoulder tenon, including a third tenon 511 provided at the end of the splint 51 and a third mortise 412 provided on the connecting beam 4, and the third tenon 511 and the third mortise 412 are adapted to each other. The splint 51 described in this embodiment is also a wooden structure, and the third tenon 511 is a rectangular tenon, and the upper and lower ends of the splint 51 are cut to form the third tenon 511. The third mortise 412 is a rectangular mortise adapted to the third tenon, and the third mortise is arranged through the connecting beam. The shoulder-cut sides of the two splints 51 of the clamping member in this embodiment are arranged away from each other.

[0042] Considering that when the number of connecting beams 4 is more than three, the upper and lower ends of the middle connecting beam 4 need to be connected to the clamping plate 51, so the length of the third mortise 412 of this embodiment should not be less than the sum of the lengths of the two third tenons 511 to ensure the stability of the connection between the connecting beam and the upper and lower clamping plates.

[0043] like Figure 1 , 9 As shown, in order to facilitate the fixing of the lead wire 6, a fixing through hole 7 is provided on the longitudinal beam 32, and the aperture of the fixing through hole 7 is adapted to the outer diameter of the lead wire 6. The fixing through hole 7 in this embodiment is a long hole extending along the height direction of the longitudinal beam, and the width of the long hole is adapted to the outer diameter of the lead wire 6, so that the lead wire can pass through the long hole. A fixing through hole 7 is provided between two adjacent second mortises 322 on the longitudinal beam 32, and the fixing through hole 7 is arranged opposite to the clamping space of the clamping member 5, so that the lead wire 6 can smoothly penetrate into the clamping space after passing through the fixing through hole 7.

[0044] Method of use: The mortise and tenon structure of the present application can increase or decrease the number of support frames 3 according to the actual length of the lead wire 6. And according to the actual number of types of the lead wire 6, the number of connecting beams 4 can be increased or decreased accordingly. Since the present utility model is entirely made of wood, it is easy to process, and the processing workshop can process the mortise and tenon structure according to the actual use requirements.

[0045] like Figure 1 , 8As shown, this embodiment provides a commonly used combined structure, including three support frames 3, five connecting beams 4 and six clamps 5. The three support frames 3 are arranged along the lead routing direction, wherein three connecting beams 4 are distributed vertically between the middle support frame 3 and the left support frame 3, two connecting beams 4 are distributed vertically between the middle support frame 3 and the right support frame 3, and two clamps 5 are provided between the upper and lower adjacent connecting beams 4.

[0046] During installation, firstly, the connecting beam 4 is connected and fixed by the clamping plate 51, and then the connecting beam 4 and the longitudinal beam 32 are connected and fixed, and then the longitudinal beam 32 and the cross beam 31 are connected and fixed, and finally the cross beam 31 and the angle steel 9 are bolted together. After the structural installation is completed, the transformer lead-in process is carried out to directly lead the internal leads of the transformer.

[0047] Of course, the above description is not limited to the above examples. The technical features not described in the present invention can be achieved by or by adopting the existing technology, which will not be repeated here. The above embodiments and drawings are only used to illustrate the technical scheme of the present invention and are not limitations of the present invention. The present invention is described in detail with reference to the preferred implementation methods. Ordinary technicians in this field should understand that the changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention do not deviate from the purpose of the present invention and should also fall within the scope of protection of the claims of the present invention.

Claims

1. A tool for clamping and fixing the internal lead wire of a transformer, comprising two cross beams (31) respectively fixed on an upper clamp (1) and a lower clamp (2) of the transformer and a longitudinal beam (32) for fixing the lead wire (6), characterized in that: The two ends of the longitudinal beam (32) are respectively connected to the two transverse beams (31) through a first mortise and tenon structure to form a support frame (3), at least two support frames (3) are arranged along the routing direction of the lead wire, a connecting beam (4) is provided between adjacent support frames (3), and the two ends of the connecting beam are respectively connected to the longitudinal beams (32) of the two support frames through a second mortise and tenon structure.

2. The tool for clamping and fixing the internal lead wire of a transformer according to claim 1, characterized in that: At least two connection beams (4) are provided between adjacent support frames (3), the connection beams are distributed along the height direction of the longitudinal beams, and clamping pieces (5) for clamping leads are provided between upper and lower adjacent connection beams (4).

3. The tool for clamping and fixing the internal lead wire of a transformer according to claim 2, characterized in that: The clamping member (5) comprises two clamping plates (51) arranged opposite to each other, a clamping space being formed between the two clamping plates, and two ends of the clamping plates (51) being respectively connected to the upper and lower connection beams (4) via a third mortise and tenon structure.

4. The tool for clamping and fixing the internal lead wire of a transformer according to claim 1, characterized in that: The first mortise and tenon structure comprises a first tenon (321) provided at the end of the longitudinal beam (32) and a first mortise (311) opened on the transverse beam (31), and the first tenon and the first mortise are matched.

5. The tool for clamping and fixing the internal lead wire of a transformer according to claim 1, characterized in that: The second mortise and tenon structure comprises two second tenons (411) arranged at the end of the connecting beam (4) and two second mortises (322) opened on the longitudinal beam (32), the second tenons and the second mortises being matched with each other.

6. The tool for clamping and fixing the internal lead wire of a transformer according to claim 3, characterized in that: The third mortise and tenon structure comprises a third tenon (511) provided at the end of the clamping plate (51) and a third mortise (412) opened on the connecting beam (4), and the third tenon and the third mortise are matched.

7. The tool for clamping and fixing the internal lead wire of a transformer according to claim 5, characterized in that: The longitudinal beam (32) is provided with a fixing through hole (7), the diameter of the fixing through hole being adapted to the outer diameter of the lead wire (6).

8. The tool for clamping and fixing the internal lead wire of a transformer according to claim 7, characterized in that: The fixing through hole (7) is a long hole extending in the height direction of the longitudinal beam.

9. The tool for clamping and fixing the internal lead wire of a transformer according to claim 7, characterized in that: A fixing through hole (7) is provided between two adjacent second mortises (322) on the longitudinal beam (32).

10. The tool for clamping and fixing the internal lead wire of a transformer according to claim 1, characterized in that: The cross beam (31) is provided with a bolt hole (8), and the two cross beams are respectively connected to the upper clamping piece and the lower clamping piece by bolts.

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