CN219418678U

CN219418678U - Novel pure porcelain sleeve mounting structure

Info

Publication number: CN219418678U
Application number: CN202223164658.5U
Authority: CN
Inventors: 王丽辉; 霍建坤
Original assignee: Tianwei Baobian Hefei Transformer Co ltd
Current assignee: Tianwei Baobian Hefei Transformer Co ltd
Priority date: 2022-11-28
Filing date: 2022-11-28
Publication date: 2023-07-25
Anticipated expiration: 2032-11-28

Abstract

The utility model relates to the technical field of power transformers and discloses a novel pure porcelain bushing installation structure, which comprises a box cover and a pure porcelain bushing, wherein a round hole is formed in the surface of the box cover, a first flange is fixedly arranged in the round hole of the box cover, a second flange is arranged at the top of the first flange, a threaded hole is formed in the second flange, the lower end of the pure porcelain bushing is fixedly connected with the second flange through the threaded hole, a plurality of evenly distributed screw rods are fixedly arranged on the surface of the box cover and positioned on the outer side of the round hole, the installation holes in the first flange and the installation holes in the second flange are correspondingly inserted in the rod wall of the screw rods, and nuts are arranged on the rod wall threads of the screw rods. The utility model has the advantages of convenient structure operation and low cost, and can effectively solve a plurality of problems existing in the traditional structure.

Description

Novel pure porcelain sleeve mounting structure

Technical Field

The utility model relates to the technical field of power transformers, in particular to a novel pure porcelain bushing mounting structure.

Background

The transformer bushing with the voltage class of 35kV and below is generally of a pure porcelain structure, and when rated current is more than 1250A, the pure porcelain bushing consists of a glazed porcelain jacket and a conducting rod, and a wiring board in the conducting rod oil is required to be connected with the end head of a lead wire of the transformer through a bolt. In order to facilitate the disassembly and assembly of the sleeve without discharging oil or hanging a cover, the transformer needs to be provided with a nearby operating hand hole, and the disassembly and assembly are generally realized by mounting the sleeve on a lifting seat. The lifting seat only provides convenience for arranging the hand hole, has no other use value, and generally needs to be made of low-magnetic materials with higher price, so that the production cost of the transformer is increased, the construction period is prolonged, and the searching of a simple and low-cost mounting structure is very necessary to be low.

Disclosure of Invention

The utility model aims to solve the problems that a pure porcelain sleeve is inconvenient to install and high in production cost in the prior art, and provides a novel pure porcelain sleeve installation structure.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a novel pure porcelain sleeve pipe mounting structure, includes case lid and pure porcelain sleeve pipe, the round hole has been seted up on the surface of case lid, and the round hole internal fixation of case lid is equipped with first flange, the top of first flange is equipped with the second flange, the inside of second flange is equipped with the screw hole, pure porcelain sleeve pipe's lower extreme passes through screw hole and second flange fixed connection, the surface of case lid and the outside that is located the round hole are fixed and are equipped with a plurality of evenly distributed's screw rod, the mounting hole on the first flange and the mounting hole on the second flange all correspond and insert on the wall of screw rod, and the wall screw thread of screw rod is equipped with the nut.

Preferably, the upper surface of the first flange is provided with a sealing groove, the lower surface of the second flange is fixedly provided with a sealing ring, and the sealing ring is matched with the sealing groove.

Preferably, the first flange is fixedly welded in the round hole of the case cover, and the screw is fixedly arranged on the upper surface of the case cover.

Preferably, the first flange and the second flange have a central thickness greater than a peripheral thickness.

Preferably, the lower end of the pure porcelain bushing is provided with external threads matched with the threaded holes.

Compared with the prior art, the utility model provides a novel pure porcelain bushing mounting structure, which has the following beneficial effects:

1. this novel pure porcelain sleeve pipe mounting structure, through the first flange, second flange, screw rod and the nut that are equipped with, first flange and case lid fixed connection, the cooperation fixed connection through screw rod and nut is installed on first flange to the second flange, but pure porcelain sleeve pipe thread tightening is on the second flange simultaneously to the completion is installed pure porcelain sleeve pipe on the case lid.

2. This novel pure porcelain sleeve pipe mounting structure through seal groove and the sealing ring that sets up between first flange and second flange, can increase the connection leakproofness of first flange and second flange.

The device has the advantages of convenient structure operation and low cost, and can effectively solve a plurality of problems existing in the traditional structure.

Drawings

FIG. 1 is an expanded view of a novel pure porcelain bushing mounting structure according to the present utility model;

FIG. 2 is a mounting diagram of a novel pure porcelain bushing mounting structure according to the present utility model;

fig. 3 is a bottom view of the second flange of fig. 1.

In the figure: 1. a case cover; 2. pure porcelain sleeve; 3. a first flange; 4. a second flange; 5. a threaded hole; 6. a screw; 7. a nut; 8. sealing grooves; 9. and (3) a sealing ring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Referring to fig. 1-3, a novel pure porcelain bushing installation structure comprises a box cover 1 and a pure porcelain bushing 2, wherein a round hole is formed in the surface of the box cover 1, a first flange 3 is fixedly arranged in the round hole of the box cover 1, the first flange 3 is fixedly welded in the round hole of the box cover 1, a second flange 4 is arranged at the top of the first flange 3, a threaded hole 5 is formed in the second flange 4, the lower end of the pure porcelain bushing 2 is fixedly connected with the second flange 4 through the threaded hole 5, and external threads matched with the threaded hole 5 are formed in the lower end of the pure porcelain bushing 2, so that the pure porcelain bushing 2 and the second flange 4 can be disassembled; the surface of case lid 1 and be located the outside of round hole and fixedly be equipped with a plurality of evenly distributed's screw rod 6, screw rod 6 fixed mounting is in the upper surface of case lid 1, and screw rod 6 is fixed on case lid 1 through the buried welding, and this process need not to process case lid 1, has saved the processing cost of case lid 1, and the mounting hole on the first flange 3 and the mounting hole on the second flange 4 all correspond and insert on the wall of screw rod 6, and the wall screw thread of screw rod 6 is equipped with nut 7.

The seal groove 8 has been seted up to the upper surface of first flange 3, and the lower fixed surface of second flange 4 is equipped with sealing ring 9, and sealing ring 9 cooperatees with seal groove 8, and the middle part thickness of first flange 3 and second flange 4 is greater than peripheral thickness, and first flange 3 and second flange 4 can make sealing ring 9 insert in the inside of seal groove 8 when the installation, can increase the connection leakproofness of first flange 3 and second flange 4.

When the transformer is used, the pure porcelain bushing 2 can be conveniently disassembled and assembled under the condition that the transformer body is not oiled or hung, the second flange 4 is not disassembled after being assembled in the production process in a transformer factory, the pure porcelain bushing 2 is assembled through the oil tank hung, the production process is met, and the first flange 3 and the second flange 4 can be prevented from being disassembled and assembled repeatedly, so that the tightness of the first flange 3 and the second flange 4 is not influenced; when the user needs to disassemble the pure porcelain bushing 2 or other conditions occur on site, the pure porcelain bushing 2 can be disassembled from the second flange 4, then the second flange 4 is opened, and the conducting rod is disassembled through the larger round hole of the box cover 1.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a novel pure porcelain sleeve pipe mounting structure, includes case lid (1) and pure porcelain sleeve pipe (2), its characterized in that, the round hole has been seted up on the surface of case lid (1), and the round hole internal fixation of case lid (1) is equipped with first flange (3), the top of first flange (3) is equipped with second flange (4), the inside of second flange (4) is equipped with screw hole (5), the lower extreme of pure porcelain sleeve pipe (2) passes through screw hole (5) and second flange (4) fixed connection, the surface of case lid (1) and the outside that is located the round hole are fixed and are equipped with a plurality of evenly distributed's screw rod (6), the mounting hole on first flange (3) and the mounting hole on second flange (4) all correspond and insert on the pole wall of screw rod (6), and the pole wall screw thread of screw rod (6) is equipped with nut (7).

2. The novel pure porcelain bushing installation structure according to claim 1, wherein a sealing groove (8) is formed in the upper surface of the first flange (3), a sealing ring (9) is fixedly arranged on the lower surface of the second flange (4), and the sealing ring (9) is matched with the sealing groove (8).

3. The novel pure porcelain bushing installation structure according to claim 1, wherein the first flange (3) is fixedly welded inside a round hole of the box cover (1), and the screw (6) is fixedly installed on the upper surface of the box cover (1).

4. The novel pure porcelain bushing installation structure according to claim 1, wherein the middle thickness of the first flange (3) and the second flange (4) is larger than the peripheral thickness.

5. The novel pure porcelain bushing installation structure according to claim 1, wherein the lower end of the pure porcelain bushing (2) is provided with external threads matched with the threaded hole (5).