CN210954227U - Special grading ring for transformer bushing test - Google Patents

Special grading ring for transformer bushing test Download PDF

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Publication number
CN210954227U
CN210954227U CN201921544455.4U CN201921544455U CN210954227U CN 210954227 U CN210954227 U CN 210954227U CN 201921544455 U CN201921544455 U CN 201921544455U CN 210954227 U CN210954227 U CN 210954227U
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China
Prior art keywords
ring
fixed
telescopic
transformer bushing
clamping
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CN201921544455.4U
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Chinese (zh)
Inventor
张锦春
童遵军
张伟
仰帅
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Hefei Ruidian Electric Technology Consulting Service Co ltd
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Hefei Ruidian Electric Technology Consulting Service Co ltd
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Priority to CN201921544455.4U priority Critical patent/CN210954227U/en
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Abstract

The utility model discloses a special equalizer ring of transformer bushing test, including combination link and endotheca snap ring, the upper portion fixed mounting of combination link has fixed apical ring, and makes up and fix through three groups of second kellies butt joint between link and the fixed apical ring, endotheca snap ring fixed mounting is in the inboard intermediate position in upper portion of fixed apical ring, make up and fix through three groups of flexible pegs butt joint between endotheca snap ring and the fixed apical ring, the surface of endotheca snap ring is equipped with the arc draw-in groove, the inboard internal surface activity of endotheca snap ring has cup jointed flexible inner ring; a telescopic inner rod is movably sleeved on the inner surface of one end of the telescopic hanging rod, and a fixed chuck is fixedly arranged on the outer surface of one end of the telescopic inner rod; make the utility model provides a special equalizer ring of transformer bushing test has flexible regulation structure, increases its application scope, makes it have combination formula fixed knot to construct simultaneously, makes it carry out the voltage-sharing and adjusts the operation.

Description

Special grading ring for transformer bushing test
Technical Field
The utility model belongs to the technical field of the equalizer ring, specifically a special equalizer ring of transformer bushing test.
Background
The grading ring is an annular hardware tool for improving voltage distribution of the insulator string, has the function of preventing side lightning, is suitable for alternating current voltage, can uniformly distribute high voltage around an object, and ensures that no potential difference exists among annular parts, thereby achieving the effect of grading.
The utility model discloses a plug-in type equalizer ring that contrast file CN202120692U discloses, including the ring body, the ring body comprises semicircle ring I and semicircle ring II, all be fixed with the support on semicircle ring I and semicircle ring II's the terminal surface and both become complete ring body after through support fixed connection, the support has two kinds of types of support I and support II, the system has the arch on the support I, the system has the recess on the support II, tip fixed connection under support upper end and the support cardboard, support cardboard upper end system has semi-circular I, and the shape of cardboard is the same with the shape of support cardboard upper end and system on it has semi-circular II corresponding with semi-circular I, with the utility model discloses compare, it does not have flexible fixed knot to construct, and the flexibility ratio is relatively poor.
The hanging ring of the traditional special equalizing ring for the transformer bushing test is of an integrated fixed structure, so that the special equalizing ring for the transformer bushing test can only be suitable for transformer bushings of single models, and the application range of the special equalizing ring for the transformer bushing test is reduced; the special equalizing ring for the traditional transformer bushing test does not have a combined type fixed structure, so that the equalizing range of the special equalizing ring for the transformer bushing test cannot be adjusted, and certain inconvenience is brought to a user.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problem that the hanging ring of the traditional special equalizing ring for the transformer bushing test is of an integrated fixed structure, so that the special equalizing ring for the transformer bushing test can only be suitable for a single type of transformer bushing, thereby reducing the application range of the special equalizing ring for the transformer bushing test; the special equalizing ring for the traditional transformer bushing test does not have a combined type fixed structure, so that the problem of operation cannot be solved in the equalizing range of the special equalizing ring for the transformer bushing test, and the special equalizing ring for the transformer bushing test is provided.
The purpose of the utility model can be realized by the following technical scheme:
a grading ring special for transformer bushing tests comprises a combined hanging ring and an inner sleeve clamping ring, wherein a fixed top ring is fixedly mounted at the upper part of the combined hanging ring, the combined hanging ring and the fixed top ring are fixedly butted through three groups of second clamping rods, the inner sleeve clamping ring is fixedly mounted at the middle position of the inner side of the upper part of the fixed top ring, the inner sleeve clamping ring and the fixed top ring are fixedly butted through three groups of telescopic hanging rods, an arc-shaped clamping groove is formed in the outer surface of the inner sleeve clamping ring, and a telescopic inner ring is movably sleeved on the inner surface of the inner side of the inner sleeve clamping ring;
the telescopic inner rod is movably sleeved on the inner surface of one end of the telescopic hanging rod, a fixed clamping head is fixedly mounted on the outer surface of one end of the telescopic inner rod, a hexagonal clamping groove is formed in the upper portion of the outer surface of the second clamping rod, a threaded groove is formed in the upper portion, close to the hexagonal clamping groove, of the outer surface of the second clamping rod, and an inclined plane top is fixedly mounted on the outer surface of the top end of the second clamping rod.
Furthermore, the lower part of the combined hanging ring is fixedly provided with a fixed bottom ring, the combined hanging ring and the fixed bottom ring are fixedly butted through three groups of first clamping rods, and the diameter of the cross section of the fixed bottom ring is larger than that of the cross section of the combined hanging ring.
Furthermore, the inner sleeve clamping ring and the telescopic inner ring are fixedly butted through a clamping groove, and an annular notch is formed in the inner side inner surface of the inner sleeve clamping ring in a penetrating mode.
Furthermore, the outer surface of the telescopic inner rod is movably sleeved with a spring sleeve, and the cross section structure of the inclined plane top is of an isosceles trapezoid structure.
Further, the telescopic hanging rod and the arc-shaped clamping groove are fixed through welding, and the telescopic groove is formed in the inner side of the telescopic hanging rod.
Furthermore, the fixed top ring and the second clamping rod are fixedly butted through a thread groove, and a fixed gasket is arranged at the top of the inclined plane top head.
The utility model has the advantages that: the utility model discloses a set up flexible inner ring and spring housing, when the user needs to carry out the equalizer ring fixed operation to the transformer bushing, utilize the extending structure between flexible inner ring and the endotheca snap ring, can adjust the fixed bore of endotheca snap ring, when endotheca snap ring blocks on the transformer bushing, utilize the spring housing to cooperate flexible inner rod according to the bore of transformer bushing, adjust the length of flexible peg, through flexible peg under the effect of thread groove, inwards extrude the endotheca snap ring, make the flexible inner ring of endotheca snap ring can inwards shrink according to the transformer bushing bore size, make the endotheca snap ring have flexible regulation structure, make it can be suitable for the transformer bushing of different bores, thus promote the application scope of the special equalizer ring of this transformer bushing test;
through setting up the second kelly, utilize the hexagonal card groove on the second kelly, when using the voltage-sharing scope that needs to adjust this transformer bushing test special use equalizer ring, the user can be through rotating the hexagonal card groove, make hexagonal card groove drive thread groove, dismantle the second kelly from fixed apical ring, thereby change the fixed base ring of second kelly bottom, change the fixed base ring of different bores, adjust this transformer bushing test special use equalizer ring scope, make it have combination formula fixed knot and construct, promote its flexibility, and is convenient for use.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an overall structure view of the inner sleeve snap ring of the present invention;
fig. 3 is an overall structure diagram of the second clamping rod of the present invention.
In the figure: 1. fixing the bottom ring; 2. a first clamping rod; 3. a combined hanging ring; 4. a second clamping rod; 5. fixing the top ring; 6. an inner sleeve snap ring; 7. a telescopic hanging rod; 8. a telescopic inner rod; 9. a spring housing; 10. fixing the chuck; 11. an arc-shaped clamping groove; 12. a telescopic inner ring; 13. a hexagonal clamping groove; 14. a thread groove; 15. the inclined plane is used for ejecting.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1-3, a grading ring dedicated for transformer bushing tests comprises a combined hanging ring 3 and an inner sleeve snap ring 6, wherein a fixed top ring 5 is fixedly installed on the upper portion of the combined hanging ring 3, the combined hanging ring 3 and the fixed top ring 5 are fixedly connected in a butt joint mode through three groups of second clamping rods 4, the inner sleeve snap ring 6 is fixedly installed at the middle position of the inner side of the upper portion of the fixed top ring 5, the inner sleeve snap ring 6 and the fixed top ring 5 are fixedly connected in a butt joint mode through three groups of telescopic hanging rods 7, an arc-shaped clamping groove 11 is formed in the outer surface of the inner sleeve snap ring 6, and a telescopic inner ring 12 is movably sleeved on the;
telescopic inner rod 8 is sleeved on the inner surface of one end of the telescopic hanging rod 7, a fixed clamping head 10 is fixedly mounted on the outer surface of one end of the telescopic inner rod 8, a hexagonal clamping groove 13 is formed in the upper portion of the outer surface of the second clamping rod 4, a threaded groove 14 is formed in the outer surface of the second clamping rod 4 close to the upper portion of the hexagonal clamping groove 13, an inclined plane top head 15 is fixedly mounted on the outer surface of the top end of the second clamping rod 4, and the lower structure of the inclined plane top head 15 can reduce the resistance when the second clamping rod 4 is in butt joint.
The lower part fixed mounting of combination link 3 has fixed bottom ring 1, and makes up and connect fixedly through three first kellies 2 butt joints of group between link 3 and the fixed bottom ring 1, and the cross section diameter of fixed bottom ring 1 is greater than the cross section diameter of combination link 3, utilizes combination link 3 can be so that the change operation of fixed bottom ring 1 is more convenient.
The inner sleeve snap ring 6 and the telescopic inner ring 12 are fixedly butted through a clamping groove, and an annular notch is formed in the inner side surface of the inner sleeve snap ring 6 in a penetrating mode.
The outer surface of the telescopic inner rod 8 is movably sleeved with a spring sleeve 9, and the cross section structure of the inclined plane top head 15 is an isosceles trapezoid structure.
The telescopic hanging rod 7 and the arc-shaped clamping groove 11 are fixed by welding, and a telescopic groove is formed in the inner side of the telescopic hanging rod 7.
Fixed top ring 5 and second kelly 4 between through thread groove 14 butt joint fixed, the top of inclined plane top 15 is equipped with the retaining washer, and the retaining washer makes the butt joint of inclined plane top 15 more firm, and it is fixed through the notch butt joint between fixed bottom ring 1 and the first kelly 2.
A voltage-sharing ring special for transformer bushing test is disclosed, when in use, a user clamps a combined hanging ring 3 and a fixed top ring 5 on a transformer bushing by using an inner bushing snap ring 6 to fix the transformer bushing, carries out voltage-sharing adjustment operation on the transformer bushing by using the combined hanging ring 3, a fixed bottom ring 1 and the fixed top ring 5, can adjust the fixed caliber of the inner bushing snap ring 6 by using a telescopic structure between the telescopic inner ring 12 and the inner bushing snap ring 6 when the user needs to carry out voltage-sharing ring fixing operation on the transformer bushing by arranging the telescopic inner ring 12 and a spring sleeve 9, and simultaneously adjusts the length of a telescopic hanging rod 7 by using the spring sleeve 9 to match with a telescopic inner rod 8 according to the caliber of the transformer bushing when the inner bushing snap ring 6 is clamped on the transformer bushing, and inwards extrudes the inner bushing snap ring 6 by using the telescopic hanging rod 7 under the action of a thread groove 14, so that the telescopic inner ring 12 of the inner bushing snap ring 6 can inwards shrink according to, make endotheca snap ring 6 have flexible regulation structure, make it can be suitable for the transformer bushing of different bores, thereby promote the application scope of this special equalizer ring of transformer bushing test, through setting up second kelly 4, utilize hexagonal draw-in groove 13 on the second kelly 4, when using the voltage-sharing scope that needs to adjust this special equalizer ring of transformer bushing test, the user can be through rotating hexagonal draw-in groove 13, make hexagonal draw-in groove 13 drive thread groove 14, dismantle second kelly 4 from fixed apical ring 5, thereby change the fixed bottom ring 1 of second kelly 4 bottom, change the fixed bottom ring 1 of different bores, adjust this special equalizer ring scope of transformer bushing test, make it have combination formula fixed knot to construct, promote its flexibility, high durability and convenient use.
The foregoing is merely exemplary and illustrative of the structure of the invention, and various modifications, additions and substitutions as described in the detailed description may be made by those skilled in the art without departing from the structure or exceeding the scope of the invention as defined in the claims.

Claims (6)

1. The grading ring special for the transformer bushing test is characterized by comprising a combined hanging ring (3) and an inner sleeve clamping ring (6), wherein a fixed top ring (5) is fixedly installed on the upper portion of the combined hanging ring (3), the combined hanging ring (3) and the fixed top ring (5) are fixedly butted through three groups of second clamping rods (4), the inner sleeve clamping ring (6) is fixedly installed at the middle position of the inner side of the upper portion of the fixed top ring (5), the inner sleeve clamping ring (6) and the fixed top ring (5) are fixedly butted through three groups of telescopic hanging rods (7), an arc-shaped clamping groove (11) is formed in the outer surface of the inner sleeve clamping ring (6), and a telescopic inner ring (12) is movably sleeved on the inner surface of the inner side of the inner sleeve clamping ring (6);
the one end internal surface activity of flexible peg (7) has cup jointed flexible interior pole (8), and the one end external surface fixed mounting of flexible interior pole (8) has fixed dop (10), the surface upper portion position of second kelly (4) is equipped with hexagonal draw-in groove (13), the surface of second kelly (4) is close to the upper portion of hexagonal draw-in groove (13) and has seted up thread groove (14), and the top external surface fixed mounting of second kelly (4) has inclined plane top (15).
2. The grading ring special for transformer bushing tests according to claim 1, wherein a fixed bottom ring (1) is fixedly mounted at the lower part of the combined hanging ring (3), the combined hanging ring (3) and the fixed bottom ring (1) are fixedly butted through three groups of first clamping rods (2), and the diameter of the cross section of the fixed bottom ring (1) is larger than that of the cross section of the combined hanging ring (3).
3. The grading ring special for the transformer bushing test according to claim 1, wherein the inner sleeve snap ring (6) and the telescopic inner ring (12) are fixed in a butt joint mode through a clamping groove, and an annular notch is formed in the inner side surface of the inner sleeve snap ring (6) in a penetrating mode.
4. The grading ring special for the transformer bushing test according to claim 1, wherein a spring sleeve (9) is movably sleeved on the outer surface of the telescopic inner rod (8), and the cross section of the inclined plane top head (15) is in an isosceles trapezoid structure.
5. The grading ring special for the transformer bushing test according to claim 1, wherein the telescopic hanging rod (7) and the arc-shaped clamping groove (11) are fixed by welding, and a telescopic groove is formed in the inner side of the telescopic hanging rod (7).
6. The grading ring special for transformer bushing tests according to claim 1, wherein the fixed top ring (5) and the second clamping rod (4) are fixed in a butt joint mode through a threaded groove (14), and a fixed gasket is arranged at the top of the inclined plane top head (15).
CN201921544455.4U 2019-09-17 2019-09-17 Special grading ring for transformer bushing test Active CN210954227U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921544455.4U CN210954227U (en) 2019-09-17 2019-09-17 Special grading ring for transformer bushing test

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921544455.4U CN210954227U (en) 2019-09-17 2019-09-17 Special grading ring for transformer bushing test

Publications (1)

Publication Number Publication Date
CN210954227U true CN210954227U (en) 2020-07-07

Family

ID=71398724

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921544455.4U Active CN210954227U (en) 2019-09-17 2019-09-17 Special grading ring for transformer bushing test

Country Status (1)

Country Link
CN (1) CN210954227U (en)

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