Transformer bushing with good protection performance

Abstract

The utility model discloses a transformer bushing with good protection performance, which comprises a conducting rod, one end of the conducting rod is in threaded connection with an oil head, one end of the oil head is in threaded connection with a ceramic bushing, the middle lower part of the ceramic bushing is in threaded connection with a fixing mechanism, and the bottom end of the ceramic bushing is fixedly connected with a bottom end sealing mechanism. The upper end of the conducting rod is provided with top end threads, the lower end of the conducting rod is provided with bottom end threads, the oil head comprises a top end nut and a shell, the upper end threads and the lower end threads of the shell are connected with top end bolts, the upper end of the shell is fixedly connected with a top end sealing ring, and a cavity is formed in the shell. A middle sealing ring is arranged at the lower end of the shell, and an oil pan thread is arranged at the bottom end of the shell. By means of the structure, the shaking amplitude of the transformer bushing under the action of external force is effectively reduced, meanwhile, the device has good protection performance, and damage of the environment to the structure of the device can be effectively weakened.

Description

TECHNICAL FIELD

[0001] The utility model relates to power transmission insulation equipment technical field, especially in a kind of protective transformer bushing of good. BACKGROUND

[0002] Transformer bushing is the main insulation device outside transformer box, and has extremely important position in power system.From technical background, the progress of material science lays foundation for the development of transformer bushing.New type insulation material constantly emerges, for example, high-performance ceramic material, composite material etc., so that the insulation performance of bushing is greatly improved.Meanwhile, the development of manufacturing process, such as high-precision machining, advanced casting process etc., guarantees the dimensional accuracy and internal structure stability of bushing.In the background of operating environment, modern transformer is often installed in various complex environments, such as outdoor substation may face extreme weather conditions, including high temperature, low temperature, strong wind, dust, rain and snow etc..This requires transformer bushing not only to have good electrical performance, but also to have the ability to adapt to harsh environment, such as good moisture-proof, anti-fouling, corrosion resistance etc.

[0003] In prior art, transformer bushing is prone to large swing under external force, resulting in flange failure, and fixed flange part is prone to environmental erosion, which leads to short service life of transformer bushing. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of protective transformer bushing of good, can weaken the invasion of external environment to device when working, show better protective property, effectively increase the service life of device, and its structure design is simple, easy to produce and manufacture.

[0005] To achieve the above-mentioned purpose, provide a kind of protective transformer bushing of good, including electrically conductive pole, the one end of electrically conductive pole is connected with oil head by screw thread, the one end of oil head is connected with ceramic bushing by screw thread, the middle and lower part of ceramic bushing is connected with fixed mechanism by screw thread, the bottom end of ceramic bushing is fixedly connected with bottom end sealing mechanism.

[0006] According to the protective transformer bushing of good, the top end of electrically conductive pole is provided with top end screw thread, and the bottom end of electrically conductive pole is provided with bottom end screw thread.

[0007] According to the protective transformer bushing of good, the oil head includes top end nut and shell, the top and bottom ends of shell are connected with top end bolt by screw thread, the top end of shell is fixedly connected with top end sealing ring, the inside of shell is provided with cavity, the lower end of shell is provided with middle sealing ring, and the bottom end of shell is provided with oil bottom screw thread.

[0008] According to the transformer bushing with good protection, the upper end of the ceramic bushing is provided with an upper thread, the middle and lower parts of the ceramic bushing are provided with middle threads, and the lower end of the ceramic bushing is provided with a lower thread.

[0009] According to the transformer bushing with good protection, the fixing mechanism comprises a shell and a flange upper ring, the upper end of the shell is provided with a shell thread, the lower end of the shell is fixedly connected with a bottom ring, the inside of the flange upper ring is provided with an upper ring thread, the lower end of the flange upper ring is fixedly connected with a support column, the lower end of the support column is fixedly connected with a flange lower ring, the inside of the flange lower ring is provided with a lower ring thread, and the middle part of the lower ring flange is fixedly connected with a middle bolt.

[0010] According to the transformer bushing with good protection, the bottom end sealing mechanism comprises a sealing cover and a bottom end nut, the bottom end sealing mechanism comprises a key, the middle part of the sealing cover is provided with a horizontal sealing ring, and the lower end of the sealing cover is provided with a bottom end sealing ring.

[0011] According to the transformer bushing with good protection, the upper end of the shell is made of red copper, and the lower end is made of transparent insulating material.

[0012] According to the transformer bushing with good protection, the bottom ring is made of elastic material.

[0013] The utility model has the following beneficial effects:

[0014] 1、Compared with the prior art, the transformer bushing with good protection can exhibit good stability in operation, effectively reduces the shaking range of the transformer bushing under external force, and simultaneously, the device has good protection, and can effectively weaken the damage of the environment to the device structure.

[0015] 2、Compared with the prior art, the transformer bushing with good protection has simple structure design and is easy to manufacture and install.

[0016] Additional aspects and advantages of the utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model will be further explained in combination with the drawings and embodiments;

[0018] Figure 1 It is whole schematic view of the utility model transformer bushing with good protection;

[0019] Figure 2 It is partial structure schematic view of the utility model transformer bushing with good protection;

[0020] Figure 3 Part structure section view of the transformer bushing with good protective property of the utility model;

[0021] Figure 4 Part structure three-dimensional schematic view of the transformer bushing with good protective property of the utility model.

[0022] Figure 5 Part structure section view of the transformer bushing with good protective property of the utility model.

[0023] Legend:

[0024] 1, conductive rod; 2, oil head; 3, ceramic bushing; 4, fixed mechanism; 5, bottom end sealing mechanism;

[0025] 101, top end thread; 102, bottom end thread; 201, top end nut; 202, top end sealing ring; 203, top end bolt; 204, shell; 205, cavity; 206, middle sealing ring; 207, oil bottom thread; 301, upper thread; 302, middle thread; 303, lower thread; 401, flange upper ring; 402, upper ring thread; 403, support column; 404, flange lower ring; 405, lower ring thread; 406, middle bolt; 407, shell sleeve; 408, shell thread; 409, bottom ring; 501, sealing cover; 502, horizontal sealing ring; 503, bottom end sealing ring; 504, bottom end nut; 505, key. DETAILED DESCRIPTION

[0026] This part will describe the specific embodiments of the utility model in detail, the preferred embodiments of the utility model are shown in the drawings, the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.

[0027] Refer to Figures 1-5The utility model discloses an embodiment of a transformer bushing with good protection, which comprises a conductive rod 1, one end of the conductive rod 1 is threadedly connected with an oil head 2, one end of the oil head 2 is threadedly connected with a ceramic bushing 3, the middle and lower part of the ceramic bushing 3 is threadedly connected with a fixing mechanism 4, the bottom end of the ceramic bushing 3 is fixedly connected with a bottom end sealing mechanism 5, the oil head 2 comprises a top end nut 201 and an outer shell 204, the outer shell 204 is made of transparent insulating material to facilitate observation of the condition of insulating oil in a cavity 205, the upper and lower ends of the outer shell 204 are threadedly connected with a top end bolt 203, the upper end of the outer shell 204 is fixedly connected with a top end sealing ring 202, which can effectively prevent rainwater and the like from the outside from entering the cavity 205 along the conductive rod 1, the lower end of the outer shell 204 is provided with a middle sealing ring 206, which can effectively prevent insulating oil from leaking, the bottom end of the outer shell 204 is provided with an oil bottom thread 207, the oil bottom thread 207 cooperates with an upper thread 301 arranged at the upper end of the ceramic bushing 3, and it can be known from the foregoing that the ceramic bushing 3 and the oil head 2 are in sealed connection.

[0028] The middle and lower part of the ceramic bushing 3 is provided with a middle thread 302, the middle thread 302 cooperates with a shell thread 408, the inside of a flange upper ring 401 is provided with an upper ring thread 402, the lower end of the flange upper ring 401 is fixedly connected with a support column 403, the lower end of the support column 403 is fixedly connected with a flange lower ring 404, the inside of the flange lower ring 404 is provided with a lower ring thread 405, the middle part of the flange lower ring 404 is fixedly connected with a middle bolt 406, the fixing mechanism 4 can be threadedly connected with the ceramic bushing 3 through the upper ring thread 402 and the lower ring thread 405, and the middle bolt 406 can be threadedly connected with the outside, so that the fixing device is effectively fixed, the flange upper ring 401 and the flange lower ring 404 cooperate, the stability of the bushing in response to external force interference is improved, the shell sleeve 407 in the fixing mechanism 4 is covered by the shell sleeve 407 and the bottom ring 409 in the fixing mechanism 4 through rotation of the shell sleeve 407, the damage of the environment to the fixing mechanism 4 is effectively reduced, and meanwhile, external impurities are prevented from entering the inside of the transformer through the fixing mechanism 4.

[0029] The bottom end sealing mechanism 5 comprises a sealing cover 501 and a bottom end nut 504, the bottom end sealing mechanism 5 comprises a key 505, the sealing cover 501 can be connected with the lower thread 303 through threads, the middle part of the sealing cover 501 is provided with a horizontal sealing ring 502, the lower end of the sealing cover 501 is provided with a bottom end sealing ring 503, the horizontal sealing ring 502 and the bottom end sealing ring 503 can effectively ensure that the insulating oil in the device does not leak from the bottom end when the device is in use, the key 505 can effectively prevent the conductive rod 1 from rotating, the upper end of the conductive rod 1 is provided with a top end thread 101, the lower end of the conductive rod 1 is provided with a bottom end thread 102, and the conductive rod 1 is fixed by tightening the bottom end nut 504 and the top end nut 201.

[0030] Working principle: the transformer bushing, in use, the oil head 2 is connected with the ceramic bushing 3 after screwing, at this time, the top end bolt 203 is not screwed, then the fixing mechanism 4 is connected with the ceramic bushing 3, the fixing mechanism 4 has large axial span, can increase the stability of the bushing, then the bottom end sealing mechanism 5 is connected with the ceramic bushing 3, then the conductive rod 1 is penetrated in the foregoing components, the insulating oil is added through the oil head 2, then the top end bolt 203 is tightened, then the top end nut 201 and the bottom end nut 504 are tightened, the assembly of the transformer bushing is completed, since the device adopts screw connection, the connection is firm, at the same time, since the two end nuts exist, the overall connection is not easy to loosen, then the assembled transformer bushing is fixed on the transformer through the fixing mechanism 4 by manual, finally the shell sleeve 407 covers the remaining part of the fixing mechanism 4, then the bottom ring 409 is pressed, the shell sleeve 407 and the bottom ring 409 effectively weaken the damage of the environment to the fixing device.

[0031] The above embodiment of the utility model is described in detail in combination with the drawings, but the utility model is not limited to the above embodiment, within the knowledge range possessed by ordinary skilled in the art, various changes can be made without departing from the purpose of the utility model.

Claims

1. A transformer bushing with improved protection, characterized in that, The utility model provides an oil head, ceramic sleeve and fixed mechanism are connected through thread, and the bottom end sealing mechanism is connected through the bottom end of the ceramic sleeve, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is connected through the bottom end of the fixed mechanism, and the bottom end sealing mechanism is 2. A transformer bushing with good protection according to claim 1, characterized in that ​ 3. A transformer bushing with good protection according to claim 1, characterized in that, ​ 4. A transformer bushing with good protection according to claim 1, characterized in that, ​ 5. A transformer bushing with good protection according to claim 1, characterized in that, ​ 6. A transformer bushing with good protection according to claim 1, characterized in that, ​ 7. A transformer bushing with good protection according to claim 3, characterized in that, ​ 8. A transformer bushing with good protection according to claim 5, characterized in that, ​

Images