Adjustable wire outlet device of extra-high voltage power transformer

Abstract

The invention discloses an extra-high voltage power transformer adjustable wire outlet device which comprises a fixing mechanism, a rotating platform is arranged at the lower end of the fixing mechanism, a lead wire leading-out assembly is inserted into the upper end of the fixing mechanism, and the outer wall of the lead wire leading-out assembly is sleeved with a clamping mechanism. The upper end of the lead leading-out assembly is detachably connected with an angle adjusting mechanism, the inner wall of the angle adjusting mechanism is in lap joint with a sleeve, and the lower end of the sleeve is provided with a lead hole. By arranging the angle adjusting mechanism, the equipment can adapt to the mounting requirements of different angles, so that the flexibility and applicability of the equipment are improved; through the fixing mechanism and the clamping mechanism, the device can fix lead leading-out assemblies at various angles, through adjusting the angles of the fixing mechanism and the rotating platform and the angle adjusting mechanism, the installation angle of the sleeve and the installation angle of the lead leading-out assemblies can be adjusted, and the practicability of the device is improved.

Description

Technical Field

[0001] The invention relates to the technical field of transformers, in particular to an adjustable outlet device for an ultra-high voltage power transformer. Background Art

[0002] For UHV transformers, when the lead wires are not connected through detachable lead wires but directly connected to the bushings in the oil tank, a special lead-out device is required to connect the lead wires to the bushings. In the existing lead-out device, the lead-out direction is vertically upward. When encountering special situations: such as the substation is at a high altitude and the vertical lead-out insulation distance is insufficient, the bushing needs to be led out at an angle to increase the air side insulation distance, or the original vertical lead-out method of the substation line reconstruction does not meet the later needs, the existing lead-out device cannot meet the use requirements. Summary of the invention

[0003] The object of the present invention is to provide an adjustable outlet device for a UHV power transformer to solve the problem proposed in the above-mentioned background technology that the insulation distance of the vertical outlet of the substation at a high altitude is insufficient, the bushing needs to be led out at an angle to increase the insulation distance on the air side, or the original vertical outlet method of the substation line reconstruction does not meet the later needs, and the existing outlet device cannot meet the use requirements.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an adjustable lead-out device for a UHV power transformer, comprising a fixing mechanism, a rotating platform is provided at the lower end of the fixing mechanism, a lead-out assembly is plugged at the upper end of the fixing mechanism, a clamping mechanism is sleeved on the outer wall of the lead-out assembly, an angle adjustment mechanism is detachably connected to the upper end of the lead-out assembly, a sleeve is overlapped on the inner wall of the angle adjustment mechanism, a lead-in hole is opened at the lower end of the sleeve, the fixing mechanism is composed of a fixing clip, a support, a support base, a rubber pad, a connecting piece, a washer, and a nut, a clamping clip is sleeved on the outer wall of the sleeve, a clamping base is bolted to one side of the clamping clip, and a clamping support block is fixedly connected to one side of the clamping base;

[0005] A support member and a fixing clip are installed on the upper end of the support base, and the support member and the fixing clip match the shape of the lead-out assembly. The fixing clip is detachably connected to the support base, and the upper end of the support member is clamped connected to the support base, and the upper end of the support base is clamped with the fixing clip.

[0006] Preferably, one side of the clamping mechanism is bolted to one side of the clamping support, and the clamping mechanism consists of a clamping clip and a clamping base, and the clamping clip and the clamping base match the shape of the vertical part of the lead-out assembly.

[0007] Preferably, the vertical portion of the lead-out assembly adopts a cylindrical structure.

[0008] Preferably, the clamping base is configured as a concave arc structure, and the clamping clip is configured as an Ω shape.

[0009] Preferably, the lower end of the clamping clip is fixedly connected to the upper end of the clamping base, and the lower end of the clamping base is fixedly connected to the upper end of the clamping mechanism.

[0010] Preferably, the lower end of the angle adjustment mechanism is detachably connected to the upper end of the lead-out assembly, and the lower portion of the angle adjustment mechanism is arranged in a vertical shape.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The angle adjustment mechanism can make the equipment adapt to the installation requirements of different angles, thereby improving the flexibility and applicability of the equipment. The setting of the angle adjustment mechanism enables the lead-out assembly to be properly adjusted according to the actual installation environment to ensure smooth lead-in and stable operation of the equipment. In addition, the detachable setting is also convenient for maintenance and replacement, extending the service life of the equipment;

[0013] 2. The fixing mechanism and clamping mechanism can enable the device to fix the lead-out components at various angles. By adjusting the angle of the fixing mechanism and the rotating platform and the angle adjustment mechanism, the installation angle of the sleeve and the installation angle of the lead-out component can be adjusted to ensure that the insulation distance outside the sleeve meets the use requirements, thereby increasing the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0015] Figure 2 It is a top view schematic diagram of the three-dimensional structure of the present invention;

[0016] Figure 3 It is a schematic diagram of the angle adjustment mechanism of the present invention;

[0017] Figure 4 It is a schematic diagram of the fixing mechanism of the present invention;

[0018] Figure 5 It is a schematic diagram of the clamping mechanism of the present invention.

[0019] In the figure: 1. fixing mechanism; 2. clamping mechanism; 3. lead-out assembly; 4. angle adjustment mechanism; 5. sleeve; 6. lead-in hole; 7. rotating platform; 8. fixing clamp; 9. support member; 10. support base; 11. clamping support block; 12. clamping clamp; 13. clamping base; 14. rubber pad; 15. connecting member; 16. washer; 17. nut. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figure 1 and Figure 5 The present invention provides a technical solution: an adjustable outlet device for a UHV power transformer, comprising a fixing mechanism 1, a rotating platform 7 is arranged at the lower end of the fixing mechanism 1, a lead-out assembly 3 is plugged into the upper end of the fixing mechanism 1, a clamping mechanism 2 is sleeved on the outer wall of the lead-out assembly 3, an angle adjustment mechanism 4 is detachably connected to the upper end of the lead-out assembly 3, a sleeve 5 is overlapped on the inner wall of the angle adjustment mechanism 4, a lead-in hole 6 is opened at the lower end of the sleeve 5, and the fixing mechanism 1 is composed of a fixing clip 8, a support member 9, a support base 10, and a rubber pad 14. , a connector 15, a washer 16, and a nut 17. The outer wall of the sleeve 5 is provided with a clamping clip 12. A clamping base 13 is bolted to one side of the clamping clip 12. A clamping support block 11 is fixedly connected to one side of the clamping base 13. A support member 9 and a fixing clip 8 are installed on the upper end of the support base 10. The support member 9 and the fixing clip 8 match the shape of the lead-out component 3. The fixing clip 8 is detachably connected to the support base 10. The upper end of the support member 9 is clamped and connected to the support base 10. The upper end of the support base 10 is clamped and connected to the fixing clip 8.

[0022] The lower end of the support base 10 is connected with a rubber pad 14 through a thread, and the lower end of the rubber pad 14 is fixed on the support member 9. The lower end of the support member 9 is connected to the support base 10 through a thread. The inner wall of the fixing clip 8 is provided with a groove matching with the support member 9 to ensure the tight fit between the fixing clip 8 and the support member 9. The clamping mechanism 2 includes a clamping clip 12, a clamping base 13 and a clamping support block 11. The clamping clip 12 is connected to the clamping base 13 through a bolt, and the clamping base 13 is connected to the clamping support block 11 through a bolt. The lower end of the clamping support block 11 is provided with a sleeve. 5 to ensure the close fit between the sleeve 5 and the clamping support block 11. The angle adjustment mechanism 4 includes a detachably connected adjusting screw and an adjusting nut 17. The lower end of the adjusting screw is threadedly connected to the inner wall of the sleeve 5, and the adjusting nut 17 is threadedly connected to the upper end of the adjusting screw. The outer wall of the adjusting nut 17 is provided with a groove that matches the clamping mechanism 2 to ensure the close fit between the adjusting nut 17 and the clamping mechanism 2. By rotating the adjusting screw, the sleeve 5 can be moved up and down, thereby adjusting the angle of the outlet device to meet different usage requirements.

[0023] See also Figure 2In order to quickly replace the sleeve 5 or repair it, it can also be achieved by adjusting the outlet device. One side of the clamping mechanism 2 is bolted to one side of the clamping support 9. The clamping mechanism 2 is composed of a clamping clip 12 and a clamping base 13. The clamping clip 12 and the clamping base 13 match the shape of the vertical part of the lead-out assembly 3. The vertical part of the lead-out assembly 3 adopts a cylindrical structure, the clamping base 13 is set to a concave arc structure, and the clamping clip 12 is set to an Ω shape;

[0024] The rotating platform 7 is a bottom plate fixed to the bottom of the transformer oil tank. The fixing mechanism 1 is connected to the rotating platform 7 to support the entire lead-out device and rotate the lead-out assembly 3. The clamping mechanism 2 is used to clamp and support the lead-out assembly 3. The lead-out assembly 3 can be a single lead-out device or a multiple lead-out device that converges up and down. The leads converge together to connect the sleeve 5. The angle adjustment mechanism 4 is a device that can be installed on the lead-out assembly 3 and can adjust the installation angle of the sleeve 5. When the angle is fixed, the angle adjustment mechanism 4 can also be integrated with the lead-out assembly 3. The rotating platform 7 can be in various shapes, such as circular, annular, fan-shaped, etc. This device adopts Taking the fan shape as an example, the support base 10 can be rectangular, cylindrical, etc. The present device takes a rectangle as an example. The bottom of the support base 10 is fan-shaped like the rotating platform 7. The support member 9 and the fixing clip 8 are used to support the lead-out assembly 3. To ensure the stability of the lead-out assembly 3, the support member 9 and the fixing clip 8 must match the shape of the lead-out assembly 3. For example, the lower part of the lead-out assembly 3 is usually cylindrical, the support member 9 is arranged to be a concave arc, and the fixing clip 8 is designed to be Ω-shaped. The fixing clip 8 is installed together with the support base 10, usually connected by an insulating screw. The support member 9 can be placed on the support base 10 and clamped on the fixing clip 8, or it can be installed together with the fixing clip 8 and the support base 10.

[0025] See also Figure 3 and Figure 4 In order to quickly fix the lead-out assembly 3 on the fixing mechanism 1, the lower end of the clamping clip 12 is fixedly connected to the upper end of the clamping base 13, the lower end of the clamping base 13 is fixedly connected to the upper end of the clamping mechanism 2, the lower end of the angle adjustment mechanism 4 is detachably connected to the upper end of the lead-out assembly 3, and the lower part of the angle adjustment mechanism 4 is arranged in a vertical shape;

[0026] The upper end of the angle adjustment mechanism 4 is arranged as a rotatable structure to facilitate adjustment of the angle between the lead-out assembly 3 and the fixing mechanism 1. By rotating the angle adjustment mechanism 4, the lead-out assembly 3 can be accurately positioned to meet the requirements of different installation environments. In addition, a sealing ring is arranged between the rotating part and the fixed part of the angle adjustment mechanism 4 to ensure that the internal structure is not affected by moisture and dust when used in harsh environments. The material selection of the entire device adopts corrosion-resistant and high-strength alloy materials to ensure long-term stable operation. In practical applications, it can effectively reduce the installation and maintenance time and improve the operating efficiency of the power transformer.

[0027] Working principle: First, the lower end of the support base 10 is connected with a rubber pad 14 through a thread, and the lower end of the rubber pad 14 is fixed on the support member 9. The lower end of the support member 9 is connected to the support base 10 through a thread. The inner wall of the fixing clip 8 is provided with a groove that matches the support member 9 to ensure that the fixing clip 8 and the support member 9 are tightly matched. The clamping mechanism 2 includes a clamping clip 12, a clamping base 13 and a clamping support block 11. The clamping clip 12 is connected to the clamping base 13 through bolts, and the clamping base 13 is connected to the clamping support block 11 through bolts. The lower end of the clamping support block 11 is provided with a groove that matches the sleeve 5 to ensure that the sleeve 5 and the clamping The support block 11 is tightly matched, and the angle adjustment mechanism 4 includes a detachably connected adjusting screw and an adjusting nut 17. The lower end of the adjusting screw is connected to the inner wall of the sleeve 5 by a thread, and the adjusting nut 17 is connected to the upper end of the adjusting screw by a thread. The outer wall of the adjusting nut 17 is provided with a groove matched with the clamping mechanism 2 to ensure the tight fit of the adjusting nut 17 and the clamping mechanism 2. By rotating the adjusting screw, the sleeve 5 can be moved up and down, thereby adjusting the angle of the outlet device to meet different usage requirements. The rotating platform 7 is a bottom plate fixed to the bottom of the transformer tank. The fixing mechanism 1 is connected to the rotating platform 7 to support the entire outlet device. The function of positioning and rotating the angle of the lead-out assembly 3 is that the clamping mechanism 2 is used to clamp and support the lead-out assembly 3. The lead-out assembly 3 can be a device for leading out a single lead, or a device for leading out multiple leads that converge up and down. The leads converge together to connect the sleeve 5. The angle adjustment mechanism 4 is a device that can be installed on the lead-out assembly 3 and can adjust the installation angle of the sleeve 5. When the angle is fixed, the angle adjustment mechanism 4 can also be made into one body with the lead-out assembly 3. The rotating platform 7 can be of various shapes, such as circular, annular, fan-shaped, etc. The device takes the fan-shaped as an example, and the support base 10 can be rectangular, cylindrical, etc. The device adopts a rectangle as an example. The bottom of the support base 10 is fan-shaped like the rotating platform 7. The support member 9 and the fixing clip 8 are used to support the lead-out assembly 3. To ensure the stability of the lead-out assembly 3, the support member 9 and the fixing clip 8 must match the shape of the lead-out assembly 3. For example, the lower part of the lead-out assembly 3 is usually cylindrical, the support member 9 is set to a concave arc, and the fixing clip 8 is designed to be Ω-shaped. The fixing clip 8 is installed together with the support base 10, usually connected by an insulating screw. The support member 9 can be placed on the support base 10 and clamped on the fixing clip 8, or it can be installed together with the fixing clip 8 and the support base 10;

[0028] Then, the upper end of the angle adjustment mechanism 4 is set as a rotatable structure to facilitate the adjustment of the angle between the lead-out assembly 3 and the fixing mechanism 1. By rotating the angle adjustment mechanism 4, the lead-out assembly 3 can be accurately positioned to meet the needs of different installation environments. In addition, a sealing ring is provided between the rotating part and the fixed part of the angle adjustment mechanism 4 to ensure that the internal structure is not affected by moisture and dust when used in harsh environments. The material selection of the entire device uses corrosion-resistant and high-strength alloy materials to ensure long-term stable operation. In actual applications, it can effectively reduce the installation and maintenance time and improve the operating efficiency of the power transformer. The above is the working process of the entire device, and the contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable outlet device for a UHV power transformer, comprising a fixing mechanism (1), characterized in that: The lower end of the fixing mechanism (1) is provided with a rotating platform (7), the upper end of the fixing mechanism (1) is plugged with a lead-out assembly (3), the outer wall of the lead-out assembly (3) is sleeved with a clamping mechanism (2), the upper end of the lead-out assembly (3) is detachably connected with an angle adjustment mechanism (4), the inner wall of the angle adjustment mechanism (4) is overlapped with a sleeve (5), the lower end of the sleeve (5) is provided with a lead-in hole (6), the fixing mechanism (1) is composed of a fixing clamp (8), a support member (9), a support base (10), a rubber pad (14), a connecting member (15), a washer (16), and a nut (17), the outer wall of the sleeve (5) is sleeved with a clamping clamp (12), one side of the clamping clamp (12) is bolted with a clamping base (13), and one side of the clamping base (13) is fixedly connected with a clamping support block (11); A support member (9) and a fixing clip (8) are installed at the upper end of the support base (10); the support member (9) and the fixing clip (8) match the shape of the lead-out assembly (3); the fixing clip (8) is detachably connected to the support base (10); the upper end of the support member (9) is clamped to the support base (10); and the upper end of the support base (10) is clamped to the fixing clip (8).

2. The adjustable outlet device for a UHV power transformer according to claim 1 is characterized in that: One side of the clamping mechanism (2) is bolted to one side of the clamping support (9), and the clamping mechanism (2) is composed of a clamping clip (12) and a clamping base (13), and the clamping clip (12) and the clamping base (13) match the shape of the vertical part of the lead-out assembly (3).

3. The adjustable outlet device for a UHV power transformer according to claim 1 is characterized in that: The vertical part of the lead-out assembly (3) adopts a cylindrical structure.

4. The adjustable outlet device for a UHV power transformer according to claim 1 is characterized in that: The clamping base (13) is configured as a concave arc structure, and the clamping clip (12) is configured as an Ω shape.

5. The adjustable outlet device for a UHV power transformer according to claim 1 is characterized in that: The lower end of the clamping clip (12) is fixedly connected to the upper end of the clamping base (13), and the lower end of the clamping base (13) is fixedly connected to the upper end of the clamping mechanism (2).

6. The adjustable outlet device for a UHV power transformer according to claim 1 is characterized in that: The lower end of the angle adjustment mechanism (4) is detachably connected to the upper end of the lead-out assembly (3), and the lower part of the angle adjustment mechanism (4) is arranged in a vertical shape.

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