CN215007834U - Transformer and positioning device thereof - Google Patents
Transformer and positioning device thereof Download PDFInfo
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- CN215007834U CN215007834U CN202121529620.6U CN202121529620U CN215007834U CN 215007834 U CN215007834 U CN 215007834U CN 202121529620 U CN202121529620 U CN 202121529620U CN 215007834 U CN215007834 U CN 215007834U
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- positioning
- mounting flange
- positioning device
- cover plate
- position circle
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Abstract
The utility model discloses a positioning device, include the position circle that is used for the location nail that links to each other with last folder web and is used for the mounting flange that links to each other with the case lid and be located between mounting flange and the position nail, position circle and mounting flange clearance fit, the upper portion of position nail has the cone head, the diameter of cone head increases along the direction from top to bottom gradually, the lower part of position circle have with the lateral wall matched with location conical surface of cone head, the distance is predetermine at the interval between the axis of position circle and the axis of the conical surface place circular cone of location. The distance between the axis of the locating ring and the axis of the cone where the locating conical surface is located is preset. The positioning conical surface and the positioning nail can be coaxial by rotating the positioning ring, and the positioning ring and the mounting flange are coaxial, so that the purpose of absorbing machining errors is achieved. In addition, the positioning ring can be detached and reused, so that the positioning device can be reused. The utility model also provides a transformer including above-mentioned positioner to have above-mentioned advantage.
Description
Technical Field
The utility model relates to a substation equipment technical field, in particular to positioner. The utility model discloses still relate to a transformer including above-mentioned positioner.
Background
With the increasing of the electrical load, the capacity of the transformer required by the power grid is also increased. The large-capacity transformer generally adopts a bell-jar type oil tank structure, and a common paperboard cushion block supporting structure or epoxy resin pouring positioning is adopted for positioning the bell-jar type oil tank and the upper part of a transformer body. When the paperboard cushion block supporting structure is adopted, the size of the paperboard cushion block is required to be repaired frequently due to the influence of manufacturing errors, so that the waiting of installation is caused, and the operation efficiency is influenced. And the structure is often loosened after long-time operation. When epoxy resin is adopted for pouring and positioning, the transformer body needs to be vacuumized as soon as possible after falling into the box. The higher the voltage level, the shorter the time required. If the liquid epoxy resin is not cured, the epoxy resin is easy to overflow along with the increase of the negative pressure in the transformer oil tank and fall onto the transformer body, thereby affecting the insulation performance of the transformer. And the epoxy resin pouring and positioning can only be used once, and if the transformer lifting core is checked, the epoxy resin needs to be poured again. However, the condition for preparing epoxy resin is not provided when the transformer is overhauled on site.
Therefore, it is an urgent technical problem to provide a positioning device with simple positioning structure and reusable structure.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a positioner, it fixes a position the nail through the position circle, and the position circle lower extreme is provided with the eccentric location conical surface, can fix a position the nail through rotatory position circle. The positioning ring has simple structure and can be repeatedly used. Another object of the present invention is to provide a transformer including the above positioning device.
In order to realize the above-mentioned purpose, the utility model provides a positioning device, include for the location nail that links to each other with last folder web and be used for the mounting flange that links to each other with the case lid and be located mounting flange with position circle between the location nail, the position circle with mounting flange clearance fit, the upper portion of location nail has the cone, the diameter of cone increases along the direction from top to bottom gradually, the lower part of position circle have with the lateral wall matched with location conical surface of cone, the axis of position circle with the distance is predetermine at the interval between the axis of the circular cone of location conical surface place.
Preferably, the mounting flange further comprises a cover plate mounted at the upper end of the mounting flange, the cover plate is connected with the mounting flange through bolts, and the positioning ring is located below the cover plate.
Preferably, the upper end face of the mounting flange is further provided with a sealing groove, the sealing groove is located below the cover plate, and a sealing gasket is arranged in the sealing groove.
Preferably, the positioning ring is a polyurethane ring.
Preferably, the sealing mechanism is positioned between the cover plate and the positioning nail.
Preferably, the sealing mechanism comprises a first insulating cardboard between the cover plate and the locating ring.
Preferably, the positioning ring is provided with a through hole extending along the axial direction, the positioning conical surface is arranged at the lower part of the through hole, the conical head is inserted into the through hole and attached to the positioning conical surface, and the sealing mechanism further comprises a second insulating paper board arranged at the upper part of the through hole.
The utility model also provides a transformer, including above-mentioned arbitrary one positioner.
The utility model provides a positioning device, include the position circle that is used for the location nail that links to each other with last folder web and is used for the mounting flange that links to each other with the case lid and be located between mounting flange and the location nail, position circle and mounting flange clearance fit, the upper portion of position nail has the cone, the diameter of cone increases along the direction from top to bottom gradually, the lower part of position circle has the lateral wall matched with location conical surface with the cone, the distance is predetermine at the interval between the axis of position circle and the axis of the conical surface place circular cone of location.
The positioning device mainly has the function of absorbing processing errors of the positioning nails, the mounting flange and other parts. During installation, the positioning nail and the mounting flange cannot be coaxially arranged. The distance between the axis of the locating ring and the axis of the cone where the locating conical surface is located is preset. The positioning conical surface and the positioning nail can be coaxial by rotating the positioning ring, and the positioning ring and the mounting flange are coaxial, so that the purpose of absorbing machining errors is achieved. In addition, the positioning ring can be detached and reused, so that the positioning device can be reused.
The utility model also provides a transformer including above-mentioned positioner to have above-mentioned advantage.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural view of the positioning device provided by the present invention in cooperation with an upper clamp web;
fig. 2 is a schematic structural view of the positioning device of the present invention cooperating with another upper clamping web.
Wherein the reference numerals in fig. 1 and 2 are:
the structure comprises a bolt 1, a spring washer 2, a cover plate 3, a sealing gasket 4, a first insulating paper plate 5, a second insulating paper plate 6, a mounting flange 7, a box cover 8, a polyurethane ring 9, a positioning nail 10 and an upper clamping piece web plate 11.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In order to make the technical field of the present invention better understand, the present invention will be described in detail with reference to the accompanying drawings and the detailed description.
Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural view of the positioning device of the present invention cooperating with an upper clamping web; fig. 2 is a schematic structural view of the positioning device of the present invention cooperating with another upper clamping web.
The utility model provides a positioner, the structure is shown in figure 1, including mounting flange 7, position circle and location nail 10. The mounting flange 7 is fixedly connected with a box cover 8 of the transformer, and the positioning nail 10 is fixedly connected with an upper clamping piece web plate 11 of the coil. The positioning ring is arranged in the mounting flange 7 and is in clearance fit with the mounting flange 7. Due to the small clearance between the positioning ring and the mounting flange 7, the positioning ring can be approximately considered to be arranged coaxially with the mounting flange 7. The upper portion of the positioning pin 10 has a tapered head whose diameter gradually increases in the direction from the top to the bottom. The positioning ring is provided with a through hole which penetrates along the axial direction, and the lower part of the through hole is provided with a positioning conical surface. The taper of the positioning conical surface is the same as that of the positioning head, when the conical head is inserted into the through hole, the side wall of the conical head can be attached to the positioning conical surface, positioning of the positioning nail 10 is achieved, and at the moment, the positioning conical surface is coaxial with the positioning nail 10.
In order to absorb the processing errors of the positioning nail 10, the mounting flange 7 and other parts, the positioning conical surface can adopt an eccentric structure. Specifically, the axis of the cone where the positioning conical surface is located is parallel to the axis of the positioning ring, and the positioning conical surface and the positioning ring are separated by a preset distance. The axis of the locating peg 10 is often spaced from the axis of the mounting flange 7. The axis of the cone where the positioning conical surface is located can be coincided with the axis of the positioning nail 10 by rotating the positioning ring, so that the processing errors of the positioning nail 10, the mounting flange 7 and other parts can be effectively absorbed. In addition, the through hole in the positioning ring is not limited to be coaxial with the positioning ring. The positioning ring is usually made of an insulating material, in a specific embodiment of the present application, the positioning ring is a polyurethane ring 9, and of course, a user may also use a positioning ring made of other materials as needed, which is not limited herein.
In addition, for fixed position circle, positioner still includes apron 3, and apron 3 sets up the top of mounting flange 7, and the two passes through bolt 1 fixed connection. The position circle is located apron 3 below, and apron 3 and the up end laminating of mounting flange 7 can play sealed effect on the one hand, and on the other hand can carry out axial positioning to the position circle. In order to prevent the bolt 1 from loosening, a spring washer 2 can be arranged between the bolt 1 and the cover plate 3.
Optionally, in order to improve the sealing performance of the positioning device, a sealing gasket 4 is further arranged between the mounting flange 7 and the cover plate 3. The sealing gasket 4 deforms under the action of the pretightening force of the bolt, and is tightly attached to the cover plate 3 and the mounting flange 7, so that insulating oil in the transformer is prevented from leaking. In addition, the upper end face of the mounting flange 7 can also be provided with a sealing groove which is positioned below the cover plate 3. Sealing gasket 4 is installed in the seal groove, and sealing gasket 4 is laminated with the lateral wall and the bottom surface of seal groove under the effect of apron 3 clamping force, further improves sealed effect.
Optionally, the positioning device may further include a sealing mechanism between the cover plate 3 and the positioning pin 10. The sealing mechanism is attached to the cover plate 3, the positioning nails 10 and the positioning rings and seals the inner side of the mounting flange 7. Optionally, the sealing mechanism comprises a first insulating paper sheet 5 and a second insulating paper sheet 6. Specifically, the first insulating paper 5 is located between the cover plate 3 and the positioning ring. The apron 3 pushes down and makes the both sides of first insulation cardboard 5 laminate with the lower terminal surface of apron 3 and the up end of position circle respectively, realizes sealed between position circle and the apron 3, still can carry out axial spacing to the position circle simultaneously. In addition, the first insulating paper 5 has a certain thickness, and the outer side of the first insulating paper 5 can be attached to the inner side of the mounting flange 7.
Optionally, the second insulating paper board 6 is disposed on the upper portion of the through hole, the upper end of the positioning nail 10 is attached to the lower end face of the second insulating paper board 6, and the upper end face of the second insulating paper board 6 is attached to the lower end face of the first insulating paper board 5. In addition, the outer circumference of the second insulating paper sheet 6 may be attached to the side wall of the through-hole. The first insulating paper board 5 and the second insulating paper board 6 have certain compressibility, so that the first insulating paper board 5 and the second insulating paper board 6 can be compressed when the cover plate 3 is connected with the mounting flange 7, and the sealing performance of the positioning device is further improved. Of course, the sealing mechanism may be made of other materials and structures, and is not limited herein.
The utility model also provides a transformer, including above-mentioned arbitrary positioner. The mounting flange 7 and the box cover 8 of the transformer can be fixedly connected in a welding mode, and the positioning nails 10 and the web plates 11 of the upper clamping piece of the coil can be fixedly connected in a welding mode. The welding fixation has better connection strength and sealing performance, and a user can adopt other connection modes according to the needs, which is not limited herein. The structure of other parts of the transformer can refer to the prior art, and is not described in detail herein.
It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.
It is right above that the utility model provides a transformer and positioner thereof have carried out detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (8)
1. The utility model provides a positioning device, its characterized in that includes for the location nail (10) that links to each other with last folder web (11) and for mounting flange (7) that link to each other with case lid (8) and be located mounting flange (7) with position circle between location nail (10), the position circle with mounting flange (7) clearance fit, the upper portion of location nail (10) has the conical head, the diameter of conical head increases gradually along the direction from top to bottom, the lower part of position circle have with the lateral wall matched with location conical surface of conical head, the axis of position circle with the distance is predetermine at the interval between the axis of the circular cone of location conical surface place.
2. The positioning device as claimed in claim 1, further comprising a cover plate (3) mounted at the upper end of the mounting flange (7), wherein the cover plate (3) is connected with the mounting flange (7) through bolts (1), and the positioning ring is positioned below the cover plate (3).
3. The positioning device according to claim 2, characterized in that the upper end face of the mounting flange (7) is further provided with a sealing groove, the sealing groove is located below the cover plate (3), and a sealing gasket (4) is arranged in the sealing groove.
4. The positioning device according to claim 2, characterized in that the positioning ring is a polyurethane ring (9).
5. The positioning device according to any one of claims 2 to 4, characterized by further comprising a sealing mechanism between the cover plate (3) and the positioning spike (10).
6. The positioning device according to claim 5, characterized in that the sealing means comprise a first insulating cardboard (5) between the cover plate (3) and the positioning ring.
7. The positioning device according to claim 5, wherein the positioning ring has a through hole extending in the axial direction, the positioning tapered surface is located at the lower portion of the through hole, the tapered head is inserted into the through hole and abuts against the positioning tapered surface, and the sealing mechanism further comprises a second insulating paper board (6) located at the upper portion of the through hole.
8. A transformer, characterized in that it comprises a positioning device according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121529620.6U CN215007834U (en) | 2021-07-06 | 2021-07-06 | Transformer and positioning device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121529620.6U CN215007834U (en) | 2021-07-06 | 2021-07-06 | Transformer and positioning device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215007834U true CN215007834U (en) | 2021-12-03 |
Family
ID=79102463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121529620.6U Active CN215007834U (en) | 2021-07-06 | 2021-07-06 | Transformer and positioning device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215007834U (en) |
-
2021
- 2021-07-06 CN CN202121529620.6U patent/CN215007834U/en active Active
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