Transformer insulating bushing

Abstract

The utility model discloses a transformer insulation bushing relates to transformer accessory technical field, including insulation assembly, it is used for the high voltage winding lead safety lead of transformer inside to the oil tank outside, installing mechanism, it is used for installing insulation assembly, it is fixedly connected with transformer shell, the six S shape structures of the utility model will insulation assembly be fixed in the top of installing mechanism, when actually installing, the worker only needs to hold insulation assembly, will butt -joint mechanism be extruded to installing mechanism, makes six S shape structures hold down and clamping ring -shaped joint structure, can complete the fixation to insulation assembly, when disassembling, only need the worker to hold insulation assembly drive butt -joint mechanism to pull up, makes six S shape structures separate ring -shaped joint structure, can, convenient and fast, and need not the worker to carry any tool, has solved the problem that the existing transformer insulation bushing is not easy to dismount on the transformer tank.

Description

Technical Field

[0001] This utility model relates to the field of transformer accessories technology, and in particular to transformer insulating bushings. Background Technology

[0002] Transformer bushings are one of the core components of power transformers. They are mainly used to lead the high-voltage leads from inside the transformer to the outside of the tank, while also providing electrical insulation and mechanical support between the leads and the tank. Their performance directly affects the transformer's operational safety, reliability, and service life, and they are widely used in critical scenarios of power systems such as power plants, substations, and industrial enterprises.

[0003] Currently, most transformer insulating bushings on the market are fixed to the transformer tank using flanges and screws. In actual installation and disassembly, workers need to tighten multiple screws, which is quite troublesome. Moreover, the screws are exposed to the outside world and are susceptible to the effects of high temperature, oil and rain, which can cause the screws and connecting holes to rust, affecting the disassembly efficiency. Therefore, most existing transformer insulating bushings have the problem of being difficult to install and disassemble. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a transformer insulating bushing, which solves the problem that existing transformer insulating bushings are not easy to install and remove from the transformer tank.

[0005] To achieve the above objectives, this utility model provides the following technical solution: Transformer insulating bushings, including; Insulation components are used to safely lead the high-voltage winding leads inside the transformer to the outside of the oil tank, preventing direct discharge and short circuit between the high-voltage leads and the transformer casing. This is existing technology. The mounting mechanism is used to install the insulating components, which are fixedly connected to the transformer housing by welding. The docking mechanism, used to secure the insulating components to the top of the mounting mechanism, comprises six S-shaped structures made of stainless steel. The six S-shaped structures work together to apply pressure to the mounting mechanism, with the direction of the force applied by the six S-shaped structures all being the central axis of the mounting mechanism.

[0006] Preferably, the insulating component includes an insulating sleeve body, and a connector is fixedly connected to the bottom of the insulating sleeve body by an adhesive. The connector includes a connecting ring, which is a ring structure made of stainless steel, and six through holes are distributed on the surface of the connecting ring.

[0007] Preferably, the bottom surface of the connecting ring is provided with a sealing groove 1 and a sealing groove 2. The sealing groove 1 is used to seal the gap between the connecting ring and the mating ring in conjunction with the sealing ring 1. The sealing groove 2 is used to seal the gap between the tubular structure and the connecting ring in conjunction with the sealing ring 2.

[0008] Preferably, the installation mechanism includes a tubular structure. Two T-shaped plates are fixedly connected to the circumferential surface of the tubular structure by welding. The two T-shaped plates are used to mate with the pre-set mounting holes on the surface of the transformer. The entire installation mechanism is then fixed to the surface of the transformer with bolts. Alternatively, the tubular structure can be fixedly connected to the transformer shell by welding. An annular snap-fit ​​structure is fixedly connected to the circumferential surface of the tubular structure by integral forming. A second sealing ring is fixedly installed on the top surface of the tubular structure by integral forming. The second sealing ring is used to waterproof and seal the gap between the tubular structure and the connecting ring in conjunction with the second sealing groove. The annular snap-fit ​​structure is used to fix the docking mechanism in conjunction with six S-shaped structures, thereby fixing the insulation component to the top of the installation mechanism.

[0009] Preferably, the docking mechanism includes a docking ring, and six fixing bolts are distributed on the top surface of the docking ring by integral machining. The fixing bolts can cooperate with the through holes to fix the docking ring to the bottom of the connector.

[0010] Preferably, the six fixing bolts are respectively fitted into the six through holes, and each of the six fixing bolts has a hexagonal nut threaded to one end of each bolt that passes through the through hole.

[0011] Preferably, a sealing ring is integrally formed on the top surface of the docking ring, and the sealing ring cooperates with the sealing groove to seal the gap between the connecting ring and the docking ring.

[0012] Preferably, the outer circumferential surface of the docking ring is fixedly connected to the six S-shaped structures by welding.

[0013] Preferably, the second sealing ring and the second sealing groove cooperate with each other to waterproof and seal the gap between the tubular structure and the connecting ring.

[0014] Preferably, the annular snap-fit ​​structure is clamped inside by six S-shaped structures. The six S-shaped structures fix the docking mechanism as a whole above the mounting mechanism by clamping, thereby simultaneously fixing the insulating component connected to its top above the mounting mechanism.

[0015] This application uses six S-shaped structures to clamp the annular snap-fit ​​structure, fixing the docking mechanism entirely above the mounting mechanism. This simultaneously fixes the top-connected insulation component above the mounting mechanism. Before leaving the factory, the docking mechanism and connector must be fixed together using fixing bolts, through holes, and hexagonal nuts. Then, the mounting mechanism is fixed to the transformer terminal position using welding or bolting. During actual installation, the worker only needs to hold the insulation component and press the docking mechanism towards the mounting mechanism, causing the six S-shaped structures to clamp and hold the annular snap-fit ​​structure, thus completing the fixation of the insulation component. Disassembly simply requires the worker to hold the insulation component and pull the docking mechanism upwards, disengaging the six S-shaped structures from the annular snap-fit ​​structure. This method is convenient, quick, and requires no tools, solving the problem of existing transformer insulation bushings being difficult to install and remove from the transformer housing. Attached Figure Description

[0016] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a structural diagram of the docking mechanism and the installation mechanism of this utility model in their separated states; Figure 3 This is a side view of the connector and docking mechanism of this utility model in the separated state. Figure 4 This is a bottom view of the connector and docking mechanism of this utility model in their separated state. Figure 5 This is a partial cross-sectional structural diagram of the present invention.

[0018] Legend: 100, Insulation component; 101, Insulation sleeve body; 110, Connector; 111, Connecting ring; 112, Through hole; 113, Sealing groove one; 114, Sealing groove two; 200, Docking mechanism; 201, Docking ring; 202, Fixing bolt; 203, Sealing ring one; 204, S-shaped structure; 300, Mounting mechanism; 301, Tubular structure; 302, Annular snap-fit ​​structure; 303, Sealing ring two; 304, T-shaped plate. Detailed Implementation

[0019] This application provides a transformer insulating bushing, which effectively solves the problem that existing transformer insulating bushings are not easy to install and remove from the transformer tank. Example

[0020] Currently, existing transformer insulating bushings are mainly fixed to the transformer tank using flanges and screws. In actual installation and disassembly, workers need to tighten multiple screws, which is quite troublesome. Furthermore, the screws are exposed to the outside environment and are susceptible to the effects of high temperature, oil, and rainwater, which can cause the screws and connecting holes to rust, affecting disassembly efficiency and making disassembly and assembly difficult.

[0021] In view of the problems existing in the prior art, this utility model provides a transformer insulating bushing; like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the transformer insulating bushing includes an insulating component 100, a docking mechanism 200, and an installation mechanism 300. The insulating component 100 is used to safely lead the high-voltage winding leads inside the transformer to the outside of the oil tank. The installation mechanism 300 is used to install the insulating component 100, which is fixedly connected to the transformer shell. The docking mechanism 200 is used to fix the insulating component 100 to the top of the installation mechanism 300. It includes six S-shaped structures 204, which are made of stainless steel. The six S-shaped structures 204 jointly apply pressure to the installation mechanism 300, and the direction of the force applied by the six S-shaped structures 204 is the central axis of the installation mechanism 300.

[0022] like Figure 1 , Figure 3 and Figure 4 As shown, the transformer insulating bushing includes an insulating component 100, which is used to safely lead the high-voltage winding leads inside the transformer to the outside of the oil tank, avoiding direct discharge and short circuit between the high-voltage leads and the transformer casing. This is the prior art. like Figure 1 and Figure 2 As shown, the transformer insulating bushing includes an installation mechanism 300 for installing the insulating component 100, which is fixedly connected to the transformer housing by welding. like Figure 3 , Figure 4 and Figure 5 As shown, the transformer insulating bushing includes a docking mechanism 200 for fixing the insulating assembly 100 to the top of the mounting mechanism 300. The mechanism includes six S-shaped structures 204 made of stainless steel. The six S-shaped structures 204 jointly apply pressure to the mounting mechanism 300, and the direction of the force applied by the six S-shaped structures 204 is the central axis of the mounting mechanism 300.

[0023] like Figure 1 , Figure 3 and Figure 4As shown, the insulating assembly 100 includes an insulating sleeve body 101. The bottom of the insulating sleeve body 101 is fixedly connected to a connector 110 by an adhesive. The connector 110 includes a connecting ring 111, which is a ring structure made of stainless steel. Six through holes 112 are distributed on the surface of the connecting ring 111.

[0024] like Figure 1 , Figure 3 and Figure 4 As shown, the bottom surface of the connecting ring 111 is provided with a sealing groove 113 and a sealing groove 114. The sealing groove 113 is used to cooperate with the sealing ring 203 to seal the gap between the connecting ring 111 and the mating ring 201. The sealing groove 114 is used to cooperate with the sealing ring 303 to seal the gap between the tubular structure 301 and the connecting ring 111.

[0025] like Figure 1 and Figure 2 As shown, the mounting mechanism 300 includes a tubular structure 301. Two T-shaped plates 304 are fixedly connected to the circumferential surface of the tubular structure 301 by welding. The two T-shaped plates 304 are used to mate with the pre-set mounting holes on the surface of the transformer. The entire mounting mechanism 300 is then fixed to the surface of the transformer with bolts. The tubular structure 301 can also be fixedly connected to the transformer shell by welding. An annular snap-fit ​​structure 302 is fixedly connected to the circumferential surface of the tubular structure 301 by integral forming. A sealing ring 2 303 is fixedly provided on the top surface of the tubular structure 301 by integral forming. The sealing ring 2 303 is used to cooperate with the sealing groove 2 114 to waterproof and seal the gap between the tubular structure 301 and the connecting ring 111. The annular snap-fit ​​structure 302 is used to cooperate with six S-shaped structures 204 to fix the docking mechanism 200, thereby fixing the insulation component 100 to the top of the mounting mechanism 300.

[0026] like Figure 3 , Figure 4 and Figure 5 As shown, the docking mechanism 200 includes a docking ring 201. Six fixing bolts 202 are distributed on the top surface of the docking ring 201 by integral machining. The fixing bolts 202 can cooperate with the through hole 112 to fix the docking ring 201 to the bottom of the connector 110.

[0027] like Figure 3 , Figure 4 and Figure 5 As shown, six fixing bolts 202 are respectively fitted into the six through holes 112, and one end of each fixing bolt 202 passing through the through hole 112 is threaded with a hexagonal nut.

[0028] like Figure 3 , Figure 4 and Figure 5As shown, a sealing ring 203 is integrally formed on the top surface of the docking ring 201. The sealing ring 203 and the sealing groove 113 cooperate with each other to seal the gap between the connecting ring 111 and the docking ring 201.

[0029] like Figure 3 , Figure 4 and Figure 5 As shown, the outer circumferential surface of the docking ring 201 is fixedly connected to the six S-shaped structures 204 by welding.

[0030] like Figure 1 , Figure 2 and Figure 4 As shown, the sealing ring 303 and the sealing groove 114 cooperate with each other to waterproof and seal the gap between the tubular structure 301 and the connecting ring 111.

[0031] like Figure 1 and Figure 2 As shown, the annular snap-fit ​​structure 302 is clamped on the inside by six S-shaped structures 204. The six S-shaped structures 204 fix the docking mechanism 200 as a whole above the mounting mechanism 300 by clamping, thereby simultaneously fixing the insulating component 100 connected to its top above the mounting mechanism 300.

[0032] This application uses six S-shaped structures 204 to clamp the annular snap-fit ​​structure 302, thus fixing the docking mechanism 200 as a whole above the mounting mechanism 300. This simultaneously fixes the top-connected insulating component 100 above the mounting mechanism 300. Before leaving the factory, the docking mechanism 200 and the connector 110 must be fixedly connected using fixing bolts 202, through holes 112, and hexagonal nuts. Then, the mounting mechanism 300 is fixed to the transformer terminal position using welding or bolting. During actual installation... When installing, the worker only needs to hold the insulating component 100 and press the docking mechanism 200 toward the installation mechanism 300, so that the six S-shaped structures 204 can lock and clamp the annular snap-fit ​​structure 302, thus completing the fixing of the insulating component 100 (at this time, the sealing ring 2 303 and the sealing groove 2 114 cooperate to seal). When disassembling, the worker only needs to hold the insulating component 100 and pull the docking mechanism 200 upward to make the six S-shaped structures 204 disengage from the annular snap-fit ​​structure 302. It is convenient and quick, and the worker does not need to carry any tools.

[0033] The above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. A transformer insulating bushing, characterized in that, include; Insulation assembly (100) for safely leading the high-voltage winding leads inside the transformer to the outside of the tank; Mounting mechanism (300) for mounting insulation assembly (100) which is fixedly connected to transformer housing; The docking mechanism (200), which is used to fix the insulating component (100) to the top of the mounting mechanism (300), includes six S-shaped structures (204) made of stainless steel. The six S-shaped structures (204) jointly apply pressure to the mounting mechanism (300), and the direction of the force applied by the six S-shaped structures (204) is the central axis of the mounting mechanism (300).

2. The transformer insulating bushing as described in claim 1, characterized in that: The insulating assembly (100) includes an insulating sleeve body (101), and a connector (110) is fixedly connected to the bottom of the insulating sleeve body (101). The connector (110) includes a connecting ring (111), which is a ring structure made of stainless steel. The surface of the connecting ring (111) has six through holes (112).

3. The transformer insulating bushing as described in claim 2, characterized in that: The bottom surface of the connecting ring (111) is provided with a sealing groove one (113) and a sealing groove two (114).

4. The transformer insulating bushing as described in claim 3, characterized in that: The installation mechanism (300) includes a tubular structure (301), two T-shaped plates (304) are fixedly connected to the circumferential surface of the tubular structure (301), an annular snap-fit ​​structure (302) is fixedly connected to the circumferential surface of the tubular structure (301), and a sealing ring II (303) is fixedly provided on the top surface of the tubular structure (301).

5. The transformer insulating bushing as described in claim 4, characterized in that: The docking mechanism (200) includes a docking ring (201), and six fixing bolts (202) are distributed on the top surface of the docking ring (201).

6. The transformer insulating bushing as described in claim 5, characterized in that: The six fixing bolts (202) are respectively fitted into the six through holes (112), and one end of each of the six fixing bolts (202) passing through the through hole (112) is threaded with a hexagonal nut.

7. The transformer insulating bushing as described in claim 6, characterized in that: The top surface of the docking ring (201) is provided with a sealing ring (203) formed by integral processing, and the sealing ring (203) cooperates with the sealing groove (113).

8. The transformer insulating bushing as described in claim 7, characterized in that: The outer circumferential surface of the docking ring (201) is fixedly connected to six S-shaped structures (204) by welding.

9. The transformer insulating bushing as described in claim 8, characterized in that: The sealing ring 2 (303) and the sealing groove 2 (114) cooperate with each other.

10. The transformer insulating bushing as described in claim 9, characterized in that: The annular snap-fit ​​structure (302) is held inside by six of the S-shaped structures (204).

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