CN110805595A - Connecting structure of pressure equalizing pipe - Google Patents
Connecting structure of pressure equalizing pipe Download PDFInfo
- Publication number
- CN110805595A CN110805595A CN201911099021.2A CN201911099021A CN110805595A CN 110805595 A CN110805595 A CN 110805595A CN 201911099021 A CN201911099021 A CN 201911099021A CN 110805595 A CN110805595 A CN 110805595A
- Authority
- CN
- China
- Prior art keywords
- pipe
- pressure equalizing
- equalizing pipe
- connecting pipe
- matched
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000009413 insulation Methods 0.000 description 3
- 239000000123 paper Substances 0.000 description 3
- 229920001131 Pulp (paper) Polymers 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000011087 paperboard Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
- F16B7/18—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections using screw-thread elements
- F16B7/182—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections using screw-thread elements for coaxial connections of two rods or tubes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
- F16B7/18—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections using screw-thread elements
- F16B7/185—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections using screw-thread elements with a node element
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention relates to a connecting structure of a pressure equalizing pipe, which comprises: the connecting pipe is provided with steps, the outer diameter of the middle part of the connecting pipe is matched with the outer diameter of the pressure equalizing pipe, and the outer diameters of the two end parts of the connecting pipe are matched with the inner diameter of the pressure equalizing pipe; the two end parts of the connecting pipe are equally divided into through holes along the circumference and matched with the counter bores of the pressure equalizing pipe; the connecting ring is provided with threaded holes which are equally divided along the circumference and matched with the pressure equalizing pipe and the connecting pipe; and the screw penetrates through the through hole and the threaded hole to complete the connection and fixation of the pressure equalizing pipe, the connecting pipe and the connecting ring. The connecting pipe and the connecting ring are slightly deformed under the action of the fastening force of the screw, so that the reliable and tight connection between the connecting structure and the pressure equalizing pipes is realized, and the integral mechanical performance of the pressure equalizing pipes at two ends after being connected through the connecting structure can be effectively ensured; the outer diameter of the middle part of the connecting pipe is the same as that of the equalizing pipe, so that the appearance of the equalizing pipe is not distorted after connection, and the integral electrical performance of the equalizing pipe at two ends after connection through the connecting structure can be effectively ensured.
Description
Technical Field
The invention belongs to the technical field of production and manufacturing of power transformers, and particularly relates to a voltage-equalizing pipe connecting structure of a transformer wire outlet device.
Background
The transformer wire outlet device generally comprises a complex oil paper insulation system formed by a pressure equalizing pipe, a pressure equalizing ball, insulation paper pulp, insulation paper, a paperboard, a supporting strip and the like, and a current-carrying lead of a transformer inside the transformer is protected to finish connection and matching of a coil wire outlet to a terminal in casing oil, so that safe operation of a lead structure under electric field stress is guaranteed.
In order to ensure good electrical performance and mechanical performance of the wire outlet device, the pressure equalizing pipe (generally, a copper pipe or an aluminum pipe) is generally of an integral welding structure and is long in length, so that certain difficulty is brought to assembly and drying of insulating structures such as external insulating paper pulp, insulating paper, paperboards and supporting strips, and production efficiency is low.
Disclosure of Invention
In order to solve the technical problems, the invention provides a connecting structure of a voltage-sharing pipe, which can be used for splitting the whole voltage-sharing pipe into a plurality of suitable sections according to the design structure requirements of a transformer, reducing the length of each section of voltage-sharing pipe, improving the manufacturing manufacturability of a transformer wire outlet device and improving the production efficiency of the transformer wire outlet device. The invention can realize reliable connection of the equalizing tube in the transformer wire outlet device, solves the problems of poor production manufacturability and the like caused by overlong length of the equalizing tube, and improves the production efficiency of the transformer wire outlet device on the premise of not influencing the electrical performance and the mechanical performance of the transformer wire outlet device. The technical scheme adopted by the invention is as follows:
a pressure equalizer tube connection structure, comprising: the connecting pipe is provided with steps, the outer diameter of the middle part of the connecting pipe is matched with the outer diameter of the pressure equalizing pipe, and the outer diameters of the two end parts of the connecting pipe are matched with the inner diameter of the pressure equalizing pipe; the two end parts of the connecting pipe are equally divided into through holes along the circumference and matched with the counter bores of the pressure equalizing pipe; the connecting ring is provided with threaded holes which are equally divided along the circumference and matched with the pressure equalizing pipe and the connecting pipe; and the screw penetrates through the through hole and the threaded hole to complete the connection and fixation of the pressure equalizing pipe, the connecting pipe and the connecting ring.
Preferably, the two end portions of the connecting tube are equally slotted circumferentially between the through holes.
Preferably, the connecting tube material is stainless steel.
Preferably, the attachment ring is provided with a slot.
Preferably, the material of the connecting ring is stainless steel.
Preferably, the two end parts of the connecting pipe are equally divided into 6 slots along the circumference between the through holes, and the slot width is 3.5 mm.
Preferably, the connecting ring is provided with a groove which is positioned in the middle of two threaded holes and has the width of 5 mm.
The invention has the beneficial effects that:
the connecting pipe and the connecting ring are provided with the grooves, so that the connecting pipe and the connecting ring can be slightly deformed under the action of the fastening force of the screw, the reliable and tight connection between the connecting structure and the pressure equalizing pipe is realized, and the mechanical properties of the connecting pipe and the connecting ring are better, so that the overall mechanical properties of the pressure equalizing pipe at two ends after being connected through the connecting structure can be effectively ensured; the outer diameter of the middle part of the connecting pipe is the same as that of the equalizing pipe, so that the appearance of the equalizing pipe is not distorted after connection, and the integral electrical performance of the equalizing pipe at two ends after connection through the connecting structure can be effectively ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are specific embodiments of the invention, and that other drawings within the scope of the present application can be obtained by those skilled in the art without inventive effort.
FIG. 1 is a front view of a connecting tube of an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a connecting tube of an embodiment of the invention;
FIG. 3 is a left side view of a connecting tube of an embodiment of the present invention;
FIG. 4 is a front view of a connection ring of an embodiment of the present invention;
FIG. 5 is a cross-sectional view of a connection ring of an embodiment of the present invention;
FIG. 6 is a schematic view of the installation of the connection structure of the embodiment of the present invention;
in the figure: 1 is a connecting pipe, 2 is a connecting ring, 3 is a screw and 4 is a pressure equalizing pipe.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
A pressure equalizer tube connection structure comprising: a connecting pipe 1 and a connecting ring 2 made of stainless steel materials and a screw 3 matched with the connecting pipe and the connecting ring. The connecting pipe 1 is processed with steps, the outer diameter of the middle part is the same as that of the pressure equalizing pipe 4, the outer diameters of the two end parts are matched with the inner diameter of the pressure equalizing pipe 4, the through holes are equally divided along the circumference of the two end parts to be matched with the counter bores of the pressure equalizing pipe 4, grooves are equally divided between the through holes along the circumference, the number of the grooves is 6, and the width of the grooves is 3.5 mm. As shown in fig. 1, it is a front view of a connection pipe 1 of the embodiment of the present invention; as shown in fig. 2, is a sectional view of a connection pipe 1 of the embodiment of the present invention; fig. 3 is a left side view of the connection pipe 1 according to the embodiment of the present invention.
The connecting ring 2 is matched with the pressure equalizing pipe 4 and the connecting pipe 1 along the circumference by equally-divided threaded holes, and is provided with a notch, wherein the notch is arranged between two threaded holes, and the width of the notch is 5 mm. As shown in fig. 4, which is a front view of the connection ring 2 of the embodiment of the present invention; as shown in fig. 5, which is a sectional view of the connection ring 2 according to the embodiment of the present invention.
And the screw 3 passes through the through hole and the threaded hole to complete the connection and fixation of the pressure equalizing pipe 4, the connecting pipe 1 and the connecting ring 2. Fig. 6 is a schematic view showing the installation of the connection structure according to the embodiment of the present invention. The connecting pipe 1 and the connecting ring 2 can slightly deform under the action of the fastening force of the screw 3 by the groove, so that the reliable and tight connection between the connecting structure and the pressure equalizing pipe 4 is realized.
Finally, it is to be noted that: the above examples are only specific embodiments of the present invention, and are not intended to limit the technical solutions of the present invention, and the scope of the present invention is not limited thereto. Those skilled in the art will understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein.
Claims (7)
1. A pressure equalizer tube connection structure, comprising: the pressure equalizing pipe comprises a connecting pipe (1), a connecting ring (2) and a screw (3), wherein the connecting pipe (1) is provided with a step, the outer diameter of the middle part is equal to the outer diameter of the pressure equalizing pipe, and the outer diameters of the two end parts are matched with the inner diameter of the pressure equalizing pipe; through holes are equally divided at the two end parts of the connecting pipe (1) along the circumference to be matched with counter bores of the pressure equalizing pipe; the connecting ring (2) is provided with equally-divided threaded holes along the circumference and is matched with the pressure equalizing pipe and the connecting pipe; the screw (3) passes through the through hole and the threaded hole to complete the connection and fixation of the pressure equalizing pipe (4), the connecting pipe (1) and the connecting ring (2).
2. The connecting structure of pressure equalizing pipe according to claim 1, characterized in that both end portions of the connecting pipe (1) are equally grooved circumferentially between the through holes.
3. The connecting structure of pressure equalizing pipes according to claim 2, characterized in that the material of the connecting pipe (1) is stainless steel.
4. The pressure equalizing pipe connection according to claim 1, characterized in that the connecting ring (2) is provided with a slot.
5. The pressure equalizing pipe connection structure according to claim 4, characterized in that the connecting ring (2) is made of stainless steel.
6. The pressure equalizing pipe connection structure according to claim 2, wherein the number of equally divided grooves between the through holes in both end portions of the connecting pipe (1) is 6 along the circumference, and the groove width is 3.5 mm.
7. The connecting structure of pressure equalizing pipe according to claim 4, characterized in that the connecting ring (2) is provided with a groove located in the middle of two of the threaded holes, and the groove is 5mm wide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911099021.2A CN110805595A (en) | 2019-11-11 | 2019-11-11 | Connecting structure of pressure equalizing pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911099021.2A CN110805595A (en) | 2019-11-11 | 2019-11-11 | Connecting structure of pressure equalizing pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110805595A true CN110805595A (en) | 2020-02-18 |
Family
ID=69502256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911099021.2A Pending CN110805595A (en) | 2019-11-11 | 2019-11-11 | Connecting structure of pressure equalizing pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110805595A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3302624A1 (en) * | 1983-01-27 | 1984-08-02 | Otto 5653 Leichlingen Feller | Clamping connection for pipes |
| JP2002242141A (en) * | 2001-02-15 | 2002-08-28 | Nippon Signal Co Ltd:The | Cut-off bar |
| CN2660750Y (en) * | 2003-12-08 | 2004-12-01 | 吴伟国 | Wire duct connector |
| CN101479485A (en) * | 2006-07-27 | 2009-07-08 | 矢崎化工株式会社 | Pipe joint |
| CN101586590A (en) * | 2008-05-22 | 2009-11-25 | 东联光电有限公司 | Screw locking device |
| GB2469147A (en) * | 2009-07-02 | 2010-10-06 | Vertical Leisure Ltd | Coupling device |
| CN203026645U (en) * | 2012-12-19 | 2013-06-26 | 余乐升 | Tubular busbar connecting device |
| CN103972673A (en) * | 2014-05-20 | 2014-08-06 | 浙江南网电气有限公司 | Tubular bus intermediate connection device and connection method thereof |
| CN204088609U (en) * | 2014-08-08 | 2015-01-07 | 国家电网公司 | Jockey in substation ground net |
| CN105449385A (en) * | 2015-12-29 | 2016-03-30 | 江苏华强电力设备有限公司 | Novel tubular bus special splicer |
| CN205335439U (en) * | 2015-12-29 | 2016-06-22 | 江苏华强电力设备有限公司 | Novel female special joint ware of pipe |
| JP2017026156A (en) * | 2016-10-06 | 2017-02-02 | 黒田精工株式会社 | Adapter for shaft terminal and ball screw assembly |
-
2019
- 2019-11-11 CN CN201911099021.2A patent/CN110805595A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3302624A1 (en) * | 1983-01-27 | 1984-08-02 | Otto 5653 Leichlingen Feller | Clamping connection for pipes |
| JP2002242141A (en) * | 2001-02-15 | 2002-08-28 | Nippon Signal Co Ltd:The | Cut-off bar |
| CN2660750Y (en) * | 2003-12-08 | 2004-12-01 | 吴伟国 | Wire duct connector |
| CN101479485A (en) * | 2006-07-27 | 2009-07-08 | 矢崎化工株式会社 | Pipe joint |
| CN101586590A (en) * | 2008-05-22 | 2009-11-25 | 东联光电有限公司 | Screw locking device |
| GB2469147A (en) * | 2009-07-02 | 2010-10-06 | Vertical Leisure Ltd | Coupling device |
| CN203026645U (en) * | 2012-12-19 | 2013-06-26 | 余乐升 | Tubular busbar connecting device |
| CN103972673A (en) * | 2014-05-20 | 2014-08-06 | 浙江南网电气有限公司 | Tubular bus intermediate connection device and connection method thereof |
| CN204088609U (en) * | 2014-08-08 | 2015-01-07 | 国家电网公司 | Jockey in substation ground net |
| CN105449385A (en) * | 2015-12-29 | 2016-03-30 | 江苏华强电力设备有限公司 | Novel tubular bus special splicer |
| CN205335439U (en) * | 2015-12-29 | 2016-06-22 | 江苏华强电力设备有限公司 | Novel female special joint ware of pipe |
| JP2017026156A (en) * | 2016-10-06 | 2017-02-02 | 黒田精工株式会社 | Adapter for shaft terminal and ball screw assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200218 |