CN211788579U - Antiseep transformer insulator - Google Patents
Antiseep transformer insulator Download PDFInfo
- Publication number
- CN211788579U CN211788579U CN202020711096.3U CN202020711096U CN211788579U CN 211788579 U CN211788579 U CN 211788579U CN 202020711096 U CN202020711096 U CN 202020711096U CN 211788579 U CN211788579 U CN 211788579U
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- truncated cone
- shaped joint
- joint surface
- insulating sleeve
- circular truncated
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Abstract
The utility model discloses a transformer insulator of antiseep, including insulation support, buckle closure, guide arm etc, the utility model discloses a round platform form faying face A and the round platform form faying face B cooperation seal ring A that corresponds seal up, and the sealing force comes from the thrust that the spring produced the guide arm. When the thermal expansion and cold shrinkage rates of the circular truncated cone-shaped joint surface A and the circular truncated cone-shaped joint surface B are different, the inclination of the circular truncated cone-shaped joint surface A cannot be changed, if the circular truncated cone-shaped joint surface A is relatively shrunk, the circular truncated cone-shaped joint surface B slides upwards under the tensile force of the spring until the circular truncated cone-shaped joint surface B is tightly matched in shape to finish sealing, and when the circular truncated cone-shaped joint surface A is relatively swelled, the circular truncated cone-shaped joint surface A slides downwards relative to the circular truncated cone-shaped joint surface B under the action of stress. Therefore, the sliding sealing surface can keep sealing no matter the sliding sealing surface expands relatively or contracts relatively, and the cracking of the insulator or the failure of the gap sealing cannot be caused.
Description
Technical Field
The utility model relates to a power equipment technical field, in particular to transformer insulator of antiseep.
Background
The current partial insulator is convenient for change and maintenance, the split type of adoption, and the mode of metal buckle closure is established on the insulating sleeve top, but because guide arm and buckle closure part are the metal, and the guide arm need carry very big electric current, so can generate heat unavoidably, and the wire nature of guide arm and buckle closure is superior to insulating sleeve part, and its expansion with heat and contraction with cold effect is different, lead to the buckle closure to be different with the expansion or the shrinkage factor of insulating buckle closure part, and buckle closure and insulating sleeve (pottery) are rigid material, so just can lead to sealed face to appear the gap and lead to sealed inefficacy, hydraulic oil reveals. If the shrinkage rate of the buckle cover is larger than that of the insulating sleeve or the thermal expansion of the insulating sleeve is larger than that of the buckle cover, the insulating sleeve is damaged.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a transformer insulator of antiseep can solve because buckle closure is different with the heat conductivity difference with the different sealed problem that leads to of insulating sleeve's thermal expansion shrinkage.
The technical scheme of the utility model is that:
an anti-leakage transformer insulator comprises an insulating sleeve, wherein the top end of the insulating sleeve is combined with a buckle cover; the upper end of the sleeve is provided with a connector which is integrally penetrated, and the connector is connected with a guide rod penetrating through the insulating sleeve; the top end of the insulating sleeve is processed into a truncated cone-shaped joint surface A, the inner side of the buckle cover is processed with a truncated cone-shaped joint surface B corresponding to the truncated cone-shaped joint surface A, two sides of the truncated cone-shaped joint surface B extend beyond the truncated cone-shaped joint surface A, and a sealing washer A is bonded on the surface of the truncated cone-shaped joint surface B; the lower side of the circular truncated cone-shaped joint surface B is also provided with a vertical sealing surface corresponding to the outer diameter of the insulating sleeve; a sealing gasket B is bonded on the surface of the vertical sealing surface; insulating sleeve bottom still is provided with the clamping ring A of wearing to establish on the guide arm, the guide arm end is provided with the screw thread section, wear to establish clamping ring B in the screw thread section, set up the spring between clamping ring A and the clamping ring B, clamping ring B passes through the lock nut in the screw thread section and adjusts.
Furthermore, the lower section of the insulating sleeve is also provided with a thread combination section, and the upper side of the thread combination section is provided with a sealing ring.
Further, the insulating sleeve is provided with the oil feed structure at thread joint section downside.
Further, the oil inlet structure is an oil hole formed in the insulating sleeve or an oil hole formed in the pressure ring A.
Furthermore, a pair of snap rings is arranged on the connecting head.
Furthermore, the truncated cone-shaped joint surface B is recessed inwards to form a clamping groove for clamping the sealing washer A.
The utility model discloses an useful part lies in:
the utility model discloses a round platform form faying face A and the round platform form faying face B that corresponds cooperate seal ring A to seal up, and the sealing force comes from the thrust that the spring produced the guide arm. When the thermal expansion and cold shrinkage rates of the circular truncated cone-shaped joint surface A and the circular truncated cone-shaped joint surface B are different, the inclination of the circular truncated cone-shaped joint surface A cannot be changed, if the circular truncated cone-shaped joint surface A is relatively shrunk, the circular truncated cone-shaped joint surface B slides upwards under the tensile force of the spring until the circular truncated cone-shaped joint surface B is tightly matched in shape to finish sealing, and when the circular truncated cone-shaped joint surface A is relatively swelled, the circular truncated cone-shaped joint surface A slides downwards relative to the circular truncated cone-shaped joint surface B under the action of stress. Therefore, the sliding sealing surface can keep sealing no matter the sliding sealing surface expands relatively or contracts relatively, and the cracking of the insulator or the failure of the gap sealing cannot be caused.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
fig. 2 is a sectional view of the present invention;
fig. 3 is a schematic view of the buckle cover of the present invention.
In the figure: 1-an insulating sleeve, 11-a sealing ring, 12-a thread combination section, 13-an oil hole, 14-a truncated cone-shaped combination surface A, 2-a buckle cover, 21-a truncated cone-shaped combination surface B, 211-a sealing washer A, 22-a vertical sealing surface, 221-a sealing washer B, 3-a connector, 31-a clamping ring, 4-a pressing ring A, 5-a spring, 6-a pressing ring B, 7-a locking nut, 8-a guide rod and 81-a thread section.
Detailed Description
The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1-3:
an anti-leakage transformer insulator comprises an insulating sleeve 1, wherein the top end of the insulating sleeve 1 is combined with a buckle cover 2; the upper end of the sleeve is provided with a connector 3 which is integrally penetrated, and the connector 3 is connected with a guide rod 8 which penetrates through the insulating sleeve 1; the top end of the insulating sleeve 1 is processed into a truncated cone-shaped joint surface A14, the inner side of the buckle cover 2 is processed with a truncated cone-shaped joint surface B21 corresponding to the truncated cone-shaped joint surface A14, two sides of the truncated cone-shaped joint surface B21 extend beyond the truncated cone-shaped joint surface A14, and a sealing washer A211 is bonded on the surface of the truncated cone-shaped joint surface B21; the lower side of the truncated cone-shaped joint surface B21 is also provided with a vertical sealing surface 22 corresponding to the outer diameter of the insulating sleeve 1; a sealing gasket B221 is adhered to the surface of the vertical sealing surface 22; insulating sleeve 1 bottom still is provided with and wears to establish clamping ring A4 on the guide arm 8, 8 ends of guide arm are provided with screw thread section 81, wear to establish clamping ring B6 on the screw thread section 81, set up spring 5 between clamping ring A4 and the clamping ring B6, clamping ring B6 is adjusted through lock nut 7 on the screw thread section 81.
Specifically, the lower section of the insulating sleeve 1 is further provided with a thread combining section 12, the upper side of the thread combining section 12 is provided with a sealing ring 11, the thread combining section 12 is screwed with an oil tank hole of a transformer, a gasket is added between the transformer and the sealing ring 11 to realize rapid combination, and other existing connection modes such as bolt connection and the like can be adopted.
Specifically, the insulating sleeve 1 is provided with the oil inlet structure at the lower side of the thread joint section 12 to ensure the normal circulation of hydraulic oil.
Specifically, the oil inlet structure is an oil hole 13 formed in the insulating sleeve 1 or an oil hole 13 formed in the pressure ring a 4.
Specifically, the connector 3 is provided with a pair of snap rings 31, and the snap rings 31 are provided to facilitate connection of the wires.
Specifically, the circular truncated cone-shaped combining surface B21 is recessed inwards to form a clamping groove for clamping the sealing washer a211, so that the installation stability of the sealing washer a211 can be improved.
The working principle is as follows: because the guide rod 8 and the buckle cover 2 are made of metal, and the guide rod 8 needs to convey very large current, heat is generated inevitably, the wire performance of the guide rod 8 and the buckle cover 2 is superior to that of the insulating sleeve 1, and the expansion and contraction effects of the guide rod 8 and the buckle cover 2 are different, so that the expansion or contraction rates of the buckle cover 2 and the insulating buckle cover 2 are different, a gap is formed on a sealing surface, sealing failure is caused, and hydraulic oil leaks. The utility model discloses a circular platform form faying face A14 and the circular platform form faying face B21 that corresponds cooperate seal ring A211 to seal, and the sealing force comes from the thrust that spring 5 produced to guide arm 8. When the thermal expansion and cold shrinkage rates of the circular truncated cone-shaped joint surface A14 and the circular truncated cone-shaped joint surface B21 are different (because the sealing washer A211 is made of elastic materials and is not influenced by weak deformation), the inclination of the circular truncated cone-shaped joint surface A14 cannot be changed, if the circular truncated cone-shaped joint surface A14 is relatively reduced, the circular truncated cone-shaped joint surface B21 slides upwards under the pulling force of the spring 5 until the shape matching is tight, sealing is completed, and when the circular truncated cone-shaped joint surface A14 is relatively expanded, the circular truncated cone-shaped joint surface B21 slides downwards under the action of stress to find a position where the stress is not. Therefore, the sliding sealing surface can keep sealing no matter the sliding sealing surface expands relatively or contracts relatively, and the cracking of the insulator or the failure of the gap sealing cannot be caused.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.
Claims (6)
1. The utility model provides a transformer insulator of antiseep which characterized in that: the insulating sleeve is characterized by comprising an insulating sleeve, wherein the top end of the insulating sleeve is combined with a buckle cover; the upper end of the sleeve is provided with a connector which is integrally penetrated, and the connector is connected with a guide rod penetrating through the insulating sleeve; the top end of the insulating sleeve is processed into a truncated cone-shaped joint surface A, the inner side of the buckle cover is processed with a truncated cone-shaped joint surface B corresponding to the truncated cone-shaped joint surface A, two sides of the truncated cone-shaped joint surface B extend beyond the truncated cone-shaped joint surface A, and a sealing washer A is bonded on the surface of the truncated cone-shaped joint surface B; the lower side of the circular truncated cone-shaped joint surface B is also provided with a vertical sealing surface corresponding to the outer diameter of the insulating sleeve; a sealing gasket B is bonded on the surface of the vertical sealing surface; insulating sleeve bottom still is provided with the clamping ring A of wearing to establish on the guide arm, the guide arm end is provided with the screw thread section, wear to establish clamping ring B in the screw thread section, set up the spring between clamping ring A and the clamping ring B, clamping ring B passes through the lock nut in the screw thread section and adjusts.
2. The leakage-proof transformer insulator of claim 1, wherein: the lower section of the insulating sleeve is also provided with a thread combination section, and the upper side of the thread combination section is provided with a sealing ring.
3. The leakage-proof transformer insulator of claim 2, wherein: and an oil inlet structure is arranged on the lower side of the thread combination section of the insulating sleeve.
4. The leakage-proof transformer insulator of claim 3, wherein: the oil inlet structure is an oil hole formed in the insulating sleeve or an oil hole formed in the pressing ring A.
5. The leakage-proof transformer insulator according to any one of claims 1-4, wherein: a pair of clamping rings is arranged on the connecting head.
6. The leakage-proof transformer insulator according to any one of claims 1-4, wherein: the circular truncated cone-shaped joint surface B is recessed inwards to form a clamping groove for clamping the sealing washer A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020711096.3U CN211788579U (en) | 2020-04-30 | 2020-04-30 | Antiseep transformer insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020711096.3U CN211788579U (en) | 2020-04-30 | 2020-04-30 | Antiseep transformer insulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211788579U true CN211788579U (en) | 2020-10-27 |
Family
ID=72958057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020711096.3U Active CN211788579U (en) | 2020-04-30 | 2020-04-30 | Antiseep transformer insulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211788579U (en) |
-
2020
- 2020-04-30 CN CN202020711096.3U patent/CN211788579U/en active Active
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