CN215815543U

CN215815543U - Transformer sleeve for power transformation

Info

Publication number: CN215815543U
Application number: CN202121715210.0U
Authority: CN
Inventors: 陈钊; 朱明�; 曹艳琴; 苏冠琼; 耿慧增
Original assignee: Shangcai Power Supply Company State Grid Henan Electric Power Co
Current assignee: Shangcai Power Supply Company State Grid Henan Electric Power Co
Priority date: 2021-07-27
Filing date: 2021-07-27
Publication date: 2022-02-11
Anticipated expiration: 2031-07-27

Abstract

The utility model discloses a transformer bushing for power transformation, which comprises a transformer top cover, wherein the inner wall of the transformer top cover is connected with a bushing body in a sliding manner, one end of the bushing body penetrates through the outer part of the transformer top cover, a fixing assembly is arranged on the surface of the bushing body, a sealing assembly is arranged between the bushing body and the inner wall of the transformer top cover, and an auxiliary assembly is arranged at the top of the fixing assembly. The utility model discloses a be connected flange and transformer top cap through setting up bolt and screw hole, fix the sleeve pipe body, seal the junction gap of transformer sleeve pipe and transformer top cap through setting up seal groove and sealing washer, can drive clamp plate extrusion sealing washer in the flange is fixed, make the sealing washer inflation and hug closely sleeve pipe body and transformer top cap to realize strengthening sealing performance's effect under the condition that reduces the structure, thereby reduce the cost of equipment.

Description

Transformer sleeve for power transformation

Technical Field

The utility model belongs to the technical field of power transmission and transformation, and particularly relates to a transformer bushing for power transformation.

Background

The transformer bushing is a device arranged outside the transformer box, the outgoing line of the transformer winding is led out through the insulating bushing, the outgoing line can be prevented from contacting with the shell of the transformer, and meanwhile, the effect of fixing the outgoing line can be achieved.

Through search, the Chinese patent discloses a transformer bushing (publication number is CN213400769U), and the technology of the transformer bushing adopts a sealing measure through a first sealing groove at the joint of a porcelain bushing and a cementing flange, a step formed by processing the inner side of the lower end face of a connecting flange, and a second sealing groove formed between the step and the porcelain bushing. Can make transformer bushing secondary seal, avoid oozing of transformer oil, but the seal structure that this technique used is too much, and the operation becomes more complicated during the installation, and has improved the manufacturing cost of equipment, consequently, technical personnel in the art provide a transformer bushing for transformer to solve the problem that proposes among the above-mentioned background art.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a transformer bushing for power transformation, which reduces the equipment structure and improves the sealing effect, thereby reducing the equipment cost.

In order to achieve the purpose, the utility model provides the following technical scheme:

a transformer bushing for power transformation comprises a transformer top cover, wherein a bushing body is connected to the inner wall of the transformer top cover in a sliding mode, one end of the bushing body penetrates through the outer portion of the transformer top cover, a fixing assembly is arranged on the surface of the bushing body, a sealing assembly is arranged between the bushing body and the inner wall of the transformer top cover, and an auxiliary assembly is arranged at the top of the fixing assembly;

through the technical scheme, when the equipment is installed, the sleeve body is communicated with the inside of the transformer, the sleeve body is fixed through the fixing assembly, the joint of the top cover of the transformer and the sleeve body is sealed through the sealing assembly, the fixing assembly is quickly arranged through the auxiliary assembly, and therefore sealing of the equipment is achieved, and working efficiency is improved.

Further, the fixing assembly comprises a flange and six threaded holes, the flange 201 is fixedly connected to the surface of the sleeve body, the inner wall of the flange is connected with six bolts in a sliding mode, the six threaded holes are formed in the top of the top cover of the transformer, and the bottoms of the six bolts penetrate through the flange and are in threaded connection with the six threaded holes respectively;

through the technical scheme, the bolt penetrates through the flange to be connected with the threaded hole, and the sleeve body is fixed.

Further, the surface of the bolt is provided with a gasket, and the bottom of the gasket is in contact with the top of the flange;

through above-mentioned technical scheme, increase the frictional force that the bolt received through setting up the packing ring, the bolt is not hard up when avoiding shaking.

Furthermore, the sealing assembly comprises a groove sealing groove and a pressing plate, the sealing groove is formed in the inner wall of the top cover of the transformer, a sealing ring is arranged on the surface of the sealing groove, the pressing plate is fixedly connected to the bottom of the flange, and the pressing plate is matched with the sealing groove;

through above-mentioned technical scheme, seal the junction of sleeve pipe body and transformer top cap through setting up the sealing washer, drive the clamp plate when the flange is fixed and insert in the seal groove, extrusion sealing washer makes the sealing washer expand to both sides and pastes tightly with sleeve pipe body surface and transformer top cap, makes sealed effect better, avoids the oil leak.

Furthermore, the auxiliary assembly comprises a shell, the shell is connected to the top of the flange in a sliding mode, a driving block is connected to the inner wall of the shell in a rotating mode, the top of the driving block penetrates through the outer portion of the shell, six rotating shafts are connected to the inner wall of the shell in a rotating mode, two ends of each rotating shaft penetrate through the shell, a gear ring is connected to the inner wall of the shell in a rotating mode, and the six rotating shafts and the driving block are connected with the gear ring in a meshed mode;

through above-mentioned technical scheme, it is rotatory to drive the ring gear through the drive block, and six pivots can be synchronous revolution under the drive of ring gear.

Furthermore, hexagonal holes are formed in the surfaces of the six rotating shafts, the distribution of the six hexagonal holes is consistent with that of the six bolts, and the hexagonal holes are matched with the tops of the bolts;

through above-mentioned technical scheme, six bolts can be driven the locking simultaneously by six hexagonal holes, improve the installation rate of bolt.

Furthermore, the auxiliary assembly also comprises uniformly distributed positioning blocks, the positioning blocks are fixedly connected to the top of the flange, uniformly distributed positioning grooves are formed in the bottom of the shell, and the positioning grooves are matched with the positioning blocks;

through above-mentioned technical scheme, through constant head tank and locating piece, align the hole on hexagonal hole and the flange fast, play the effect of fixed shell simultaneously.

In conclusion, the utility model has the following beneficial effects:

1. the flange and the transformer top cover are connected through the bolt and the threaded hole, the sleeve body is fixed, a gap at the joint of the transformer sleeve and the transformer top cover is sealed through the seal groove and the seal ring, the press plate can be driven to extrude the seal ring while the flange is fixed, the seal ring is expanded and tightly attached to the sleeve body and the transformer top cover, and therefore the effect of strengthening the sealing performance is achieved under the condition of reducing the structure, and the cost of equipment is reduced.

2. It is rotatory to drive the ring gear through setting up the drive block, and it is rotatory to drive six pivots simultaneously through setting up the ring gear, drives six bolt rotation locking simultaneously through hexagonal hole, and through setting up constant head tank and locating piece butt joint, hexagonal hole that falls that can be quick is aligned with the pore on the flange, great quickening construction bolt's speed, the effect that realizes improving work efficiency.

Drawings

FIG. 1 is a schematic structural view of the present embodiment;

FIG. 2 is a schematic sectional view of the present embodiment;

FIG. 3 is a schematic structural view of the seal assembly of the present embodiment;

FIG. 4 is a view showing the positional relationship between the housing and the flange according to the present embodiment;

fig. 5 is a schematic structural diagram of the auxiliary assembly of the present embodiment.

Description of reference numerals: 1. a transformer top cover; 101. a sleeve body; 2. a fixing assembly; 201. A flange; 202. a bolt; 203. a threaded hole; 204. a gasket; 3. a seal assembly; 301. A sealing groove; 302. a seal ring; 303. pressing a plate; 4. an auxiliary component; 401. a housing; 402. A drive block; 403. a rotating shaft; 404. a hexagonal hole; 405. a ring gear; 406. positioning a groove; 407. And (5) positioning the blocks.

Detailed Description

Example (b):

the present invention is described in further detail below with reference to figures 1-5.

A transformer bushing for power transformation comprises a transformer top cover 1, wherein a bushing body 101 is slidably connected to the inner wall of the transformer top cover 1, one end of the bushing body 101 penetrates to the outside of the transformer top cover 1, a fixing component 2 is arranged on the surface of the bushing body 101, a sealing component 3 is arranged between the bushing body 101 and the inner wall of the transformer top cover 1, an auxiliary component 4 is arranged at the top of the fixing component 2, when equipment is installed, the bushing body 101 is inserted into the transformer top cover 1 to enable the bushing body 101 to be communicated with the inside of a transformer, the bushing body 101 can be fixed by the fixing component 2, the connecting part of the bushing body 101 and the transformer top cover 1 can be sealed by the sealing component 3 to prevent oil in the transformer from leaking, the fixing component 2 can be quickly arranged by the auxiliary component 4, and through the working efficiency, the fixing component 2 comprises a flange 201 and six threaded holes 203, the flange 201 is fixedly connected to the surface of the sleeve body 101, the inner wall of the flange 201 is connected with six bolts 202 in a sliding mode, the six threaded holes 203 are formed in the top of the transformer top cover 1, the bottoms of the six bolts 202 penetrate through the flange 201 and are respectively in threaded connection with the six threaded holes 203, the flange 201 and the sleeve body 101 are adhered into a whole through an adhesive, oil leakage caused by gaps at the connecting position is avoided, the flange 201 is fixed on the surface of the transformer top cover 1 through the bolts 202, the sleeve body 101 is fixed, a gasket 204 is arranged on the surface of each bolt 202, the bottom of the gasket 204 is in contact with the top of the flange 201, and the gasket 204 arranged between each bolt 202 and the flange 201 can increase friction force borne by the bolt 202, prevent the bolt 202 from loosening when being vibrated and enable the fixing effect to be more stable;

the sealing assembly 3 comprises a groove sealing groove 301 and a pressing plate 303, the sealing groove 301 is formed in the inner wall of the transformer top cover 1, a sealing ring 302 is arranged on the surface of the sealing groove 301, the pressing plate 303 is fixedly connected to the bottom of the flange 201, the pressing plate 303 is matched with the sealing groove 301, the sealing ring 302 is arranged on the inner wall of the sealing groove 301, the joint of the transformer top cover 1 and the sleeve body 101 is sealed, when the flange 201 is fixed, the pressing plate 303 is driven by the flange 201 to be inserted into the sealing groove 301 to extrude the sealing ring 302, so that the sealing ring 302 expands towards two sides, the sealing ring is tightly attached to the inner wall of the transformer top cover 1 and the surface of the sleeve body 101, the sealing effect is enhanced, and oil leakage is prevented;

the auxiliary assembly 4 comprises a shell 401, the shell 401 is connected to the top of the flange 201 in a sliding manner, the inner wall of the shell 401 is rotatably connected with a driving block 402, the top of the driving block 402 penetrates through the outer part of the shell 401, the inner wall of the shell 401 is rotatably connected with six rotating shafts 403, two ends of each rotating shaft 403 penetrate through the shell 401, the inner wall of the shell 401 is rotatably connected with a gear ring 405, the six rotating shafts 403 and the driving block 402 are meshed with the gear ring 405, the gear ring 405 can be driven to rotate by rotating the driving block 402, the six rotating shafts 403 can be simultaneously driven to rotate in the same direction by the gear ring 405, the working efficiency is improved, hexagonal holes 404 are formed in the surfaces of the six rotating shafts 403, the distribution of the six hexagonal holes 404 is consistent with that of the six bolts 202, the hexagonal holes 404 are matched with the tops of the bolts 202, the bolts 202 can be inserted into the hexagonal holes 404, the bolts 202 can be simultaneously driven to rotate by the hexagonal holes 404, and the six bolts 202 can be simultaneously locked, the required time of the locking bolt 202 that significantly reduces, auxiliary assembly 4 still includes evenly distributed's locating piece 407 that draws together, locating piece 407 fixed connection is in the top of flange 201, evenly distributed's constant head tank 406 is seted up to shell 401's bottom, constant head tank 406 and locating piece 407 phase-match, dock locating piece 407 and constant head tank 406, can be fast with the hole alignment on hexagonal hole 404 and the flange 201, the efficiency is improved, can play fixed effect to shell 401 simultaneously, prevent that shell 401 from removing.

The working principle is as follows: when the device is installed, firstly, the sealing ring 302 is placed in the sealing groove 301, then the sleeve body 101 penetrates through the sealing ring 302 and is inserted into the transformer top cover 1, after the hole on the flange 201 is aligned with the threaded hole 203, the shell 401 is sleeved on the flange 201 and is butted with the positioning block 407 through the positioning groove 406, the hexagonal hole 404 is quickly aligned with the hole on the flange 201, six groups of gaskets 204 are respectively sleeved on the surface of the bolt 202 and are then inserted into the six hexagonal holes 404, the driving block 402 is rotated by a wrench, the driving block 402 drives the gear ring 405 and the six rotating shafts 403 to simultaneously rotate, so that the six bolts 202 are simultaneously locked with the six threaded holes 203, the flange 201 and the transformer top cover 1 are fixed, thereby the sleeve body 101 is fixed, and simultaneously, the flange 201 drives the pressing plate 303 to be inserted into the sealing groove 301 to press the sealing ring 302, so that the sealing ring 302 expands towards two sides and is in tight contact with the surface of the transformer top cover 1, the sealing effect is improved.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. The utility model provides a transformer bushing for transformer, includes transformer top cap (1), its characterized in that: the inner wall sliding connection of transformer top cap (1) has sleeve pipe body (101), the outside of running through to transformer top cap (1) of the one end of sleeve pipe body (101), the surface of sleeve pipe body (101) is provided with fixed subassembly (2), be provided with seal assembly (3) between the inner wall of sleeve pipe body (101) and transformer top cap (1), the top of fixed subassembly (2) is provided with auxiliary assembly (4).

2. A transformer bushing for power transformation according to claim 1, wherein: fixed subassembly (2) include flange (201) and quantity be threaded hole (203) six, flange (201) fixed connection is in the surface of sleeve pipe body (101), the inner wall sliding connection of flange (201) has bolt (202) that quantity is six, six threaded hole (203) are seted up at the top of transformer top cap (1), six flange (201) are run through and respectively with six to the bottom of bolt (202) threaded hole (203) threaded connection.

3. A transformer bushing for power transformation according to claim 2, wherein: the surface of the bolt (202) is provided with a gasket (204), and the bottom of the gasket (204) is in contact with the top of the flange (201).

4. A transformer bushing for power transformation according to claim 1, wherein: seal assembly (3) are including groove seal groove (301) and clamp plate (303), the inner wall in transformer top cap (1) is seted up in seal groove (301), the surface of seal groove (301) is provided with sealing washer (302), clamp plate (303) fixed connection is in the bottom of flange (201), clamp plate (303) and seal groove (301) phase-match.

5. A transformer bushing for power transformation according to claim 2, wherein: auxiliary assembly (4) includes shell (401), shell (401) sliding connection is in the top of flange (201), the inner wall of shell (401) rotates and is connected with drive block (402), the outside to shell (401) is run through at the top of drive block (402), the inner wall of shell (401) rotates and is connected with pivot (403) that quantity is six, both ends of pivot (403) are run through and are all run through shell (401), the inner wall of shell (401) rotates and is connected with ring gear (405), six pivot (403) and drive block (402) all are connected with ring gear (405) meshing.

6. A transformer bushing for power transformation according to claim 5, wherein: hexagonal holes (404) are formed in the surfaces of the six rotating shafts (403), the distribution of the hexagonal holes (404) is consistent with that of the six bolts (202), and the tops of the hexagonal holes (404) and the tops of the bolts (202) are matched.

7. A transformer bushing for power transformation according to claim 5, wherein: the auxiliary assembly (4) further comprises positioning blocks (407) which are uniformly distributed, the positioning blocks (407) are fixedly connected to the top of the flange (201), positioning grooves (406) which are uniformly distributed are formed in the bottom of the shell (401), and the positioning grooves (406) are matched with the positioning blocks (407).