CN105575610A - High-voltage mutual inductor - Google Patents
High-voltage mutual inductor Download PDFInfo
- Publication number
- CN105575610A CN105575610A CN201610096732.4A CN201610096732A CN105575610A CN 105575610 A CN105575610 A CN 105575610A CN 201610096732 A CN201610096732 A CN 201610096732A CN 105575610 A CN105575610 A CN 105575610A
- Authority
- CN
- China
- Prior art keywords
- slip pipe
- paw
- ring
- mutual inductor
- matrix
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/08—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing
- F16L3/10—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing divided, i.e. with two or more members engaging the pipe, cable or protective tubing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/20—Instruments transformers
- H01F38/22—Instruments transformers for single phase ac
- H01F38/24—Voltage transformers
- H01F38/26—Constructions
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/02—Devices for adjusting or maintaining mechanical tension, e.g. take-up device
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Installation Of Indoor Wiring (AREA)
Abstract
The invention discloses a high-voltage mutual inductor which comprises a base body, a flat nut, an axial stop ring, pressing claws and a voltage mutual inductor. The base body is provided with a sliding pipe, radial guide limiting holes, stop tables and an annular clamping groove; each racial guide limiting hole comprises a guide sliding hole and an anti-disengagement sliding hole which are communicated; the voltage mutual inductor is fixedly arranged on the peripheral wall of the sliding pipe of the base body in a sleeving mode; each pressing claw is provided with a pressing plate portion, a guide sliding block portion and a drive thread portion; each guide sliding block portion of the corresponding pressing claw is provided with a guide portion located in the corresponding guide sliding hole, an anti-disengagement portion located in the corresponding anti-disengagement sliding hole and a limiting portion located on the outer side of the sliding pipe of the base body; the axial stop ring is fixedly connected into the annular clamping groove formed in the peripheral wall of the sliding pipe of the base body in a clamping mode; the flat nut is rotatably arranged on the peripheral wall of the sliding pipe of the base body; the end of the side, adjacent to the stop tables, of the flat nut is provided with a flat thread portion matched with the drive thread portions of the pressing claws in a meshed mode; the flat nut drives the flat thread portion to rotate in a reciprocating mode to drive the pressing claws to be close to or far away from the center of the sliding pipe. The high-voltage mutual inductor is easy to install and position.
Description
Technical field
The invention belongs to high-tension electricity technical field, be specifically related to a kind of high-voltage mutual inductor.
Background technology
High-voltage mutual inductor is applicable to large voltage transitions be become in 1kv to 220kv electric power system small voltage or converts big current to small area analysis so that the instrument transformer of measurement, protection, use.
Mostly existing high-voltage mutual inductor is induction instrument transformer, and operation principle is identical with transformer, and basic structure is also iron core and former and deputy winding.The Main Function of high-voltage mutual inductor is as follows: high voltage is converted to low-voltage, and big current converts small area analysis to, after this again for measurement, control, protection.So not only can strengthen measuring instrument from journey, be convenient to instrument standard, reduce control, the voltage and current of proterctive equipment, and instrument and equipment or high-tension circuit are separated, the safety of guarantee instrument, equipment and staff.
Mostly the mounting means of existing high-voltage mutual inductor is to adopt flange install fixing or adopt bonding mode to fix, and its installation site generally needs to reserve, therefore makes the application of high-voltage mutual inductor be subject to more restriction.
Summary of the invention
The object of this invention is to provide a kind of high-voltage mutual inductor being convenient to install location, there is better firmness.
The technical scheme realizing the object of the invention is: a kind of high-voltage mutual inductor, comprises matrix, plane nut, axial back-up ring, paw and voltage transformer; Matrix is provided with slip pipe, the radially-directed spacing hole be arranged on slip pipe, the annular slot that is arranged on the gear platform on slip pipe periphery wall and is arranged on slip pipe periphery wall; Each radially-directed spacing hole comprises guiding slide opening and the anticreep slide opening of connection; On the sheathed periphery wall being fixed on matrix slip pipe of voltage transformer; Each paw is provided with pressing plate portion, along the radial guide runner portion extended to form of matrix slip pipe and the driving threaded portion be arranged in guide runner portion; Each paw guide runner portion is provided with the guide part being arranged in guiding slide opening, the anti-delinking part being arranged in anticreep slide opening and the limiting section be positioned at outside matrix slip pipe; Axial back-up ring is fixed in the annular slot on matrix slip pipe periphery wall; Plane nut rotation is arranged on the periphery wall of matrix slip pipe, and between gear platform and axial back-up ring; The side that plane nut adjoins gear platform is provided with for driving threaded portion to engage adaptive flat thread portion with each paw; Gear platform is positioned at base shaft one end upwards, and axial back-up ring is positioned at the base shaft other end upwards; Plane nut is ring-type, and plane nut adjoins a side of axial back-up ring and axial back-up ring slides adjacent; The quantity of paw is identical with the quantity of radially-directed spacing hole; Plane nut drives its flat thread portion reciprocating rotation, so drive each paw towards slip pipe center close to each other or away from.
The present invention has positive effect: (1) high-voltage mutual inductor of the present invention, owing to carrying press claw type retaining mechanism, does not need reserved installation position, is easy to install, and has good anti-loosening effect, and firm intensity is higher and reliable and stable.(2) the present invention drives paw clamping electric power cable by flat thread portion, compares, can apply larger pressure, and have excellent anti-loosening effect, effectively ensure the reliability of long-term work with by traditional bolt assembly clamping electric power cable.
Accompanying drawing explanation
Fig. 1 is a kind of perspective view of the present invention;
A kind of front view that Fig. 2 is high-voltage mutual inductor shown in Fig. 1;
Fig. 3 partly cuts open structural representation for the one of high-voltage mutual inductor shown in Fig. 1;
A kind of explosive view that Fig. 4 is high-voltage mutual inductor shown in Fig. 1;
Fig. 5 is for high-voltage mutual inductor shown in Fig. 1 is from a kind of explosive view during another angle views;
The explosive view that Fig. 6 decomposes further for high-voltage mutual inductor shown in Fig. 4.
Embodiment
(embodiment 1)
The present embodiment is a kind of high-voltage mutual inductor, sees shown in Fig. 1 to Fig. 6, comprises matrix 1, plane nut 2, axial back-up ring 3, paw 4 and voltage transformer 7; Matrix is provided with slip pipe 11, the radially-directed spacing hole 12 be arranged on slip pipe, be arranged on the gear platform 13 formed along the radial evagination of slip pipe on slip pipe periphery wall and the annular slot 14 formed along the radial indent of slip pipe be arranged on slip pipe periphery wall; The quantity of radially-directed spacing hole and gear platform is all four, and gear platform is positioned at base shaft one end upwards, and axial back-up ring is positioned at the base shaft other end upwards;
The quantity of paw 4 is identical with the quantity of radially-directed spacing hole 12, is also four, and each paw is arranged in a corresponding radially-directed spacing hole 12, and the radial direction of each paw along matrix slip pipe 11 under the guide and limit effect of radially-directed spacing hole reciprocatingly slides;
Each paw is provided with pressing plate portion 41, along the guide runner portion 43 that matrix slip pipe 11 radial direction extends to form and the driving threaded portion 44 that is arranged in guide runner portion; Threaded portion 44 is driven to be arranged on a side of guide runner portion adjacent flat nut; The inwall in pressing plate portion is curved, forms a deep-slotted chip breaker 45, and the deep-slotted chip breaker of multiple paw encloses formation one clamp hole 5.External cable is arranged in this clamp hole 5.
The present embodiment, in order to connect electricity from insulating power cable, is also provided with multiple puncture 42 on pressing plate portion inwall, and specifically, puncture is arranged on the inwall of each deep-slotted chip breaker, and each puncture is radially-inwardly protruded along matrix slip pipe 11.The existence of puncture, can not carry out peeling process to insulating power cable, effectively can connect electricity.In concrete practice, if what will clamp is bare wire, then can not puncture be set.
In the present embodiment, each paw is the integral piece made by cast molding, and each puncture is made when cast molding; In concrete practice, puncture also can adopt alternate manner to make; Such as on the inwall in pressing plate portion, be provided with multiple installation draw-in groove, then installed in draw-in groove be inlaid in corresponding one by the die-cut piercing blade made, piercing blade comprises installation portion and thorn blade, and installation portion is inlaid in be installed in draw-in groove, and thorn blade then exposes installing card groove and forms puncture.The benefit of this structure is that piercing blade can adopt the material different with paw to make, and especially selects and treats that clamp cable same material used is made, and is conducive to obtaining better electrical gas performance.
Axial back-up ring 3 is fixed in the annular slot 14 on matrix slip pipe 11 periphery wall;
Plane nut 2 is ring-type, and plane nut sleeve is located on the periphery wall of matrix slip pipe 11, and between gear platform 13 and axial back-up ring 3; The internal perisporium of plane nut is the smooth inner wall with matrix slip pipe periphery wall adaptation, the periphery wall of plane nut is provided with fastening part 21, the side that plane nut adjoins gear platform is provided with flat thread portion 22, flat thread portion is provided with archimedean spiral groove, adaptation then engages with the driving threaded portion of paw in flat thread portion, and plane nut adjoins a side of axial back-up ring and axial back-up ring slides adjacent; The fastening part 21 of the present embodiment midplane nut is arranged on the multiple binding grooves on plane nut periphery wall, and the plurality of binding groove is evenly distributed on plane nut periphery wall.
In the present embodiment, each radially-directed spacing hole 12 comprises guiding slide opening 121 and anticreep slide opening 122, and guiding slide opening is arranged on the edge of matrix slip pipe away from a side of axial back-up ring, forms a breach, anticreep slide opening is communicated with guiding slide opening, and anticreep slide opening and guiding slide opening are combined to form T-shaped hole;
Each paw guide runner portion 43 is provided with and is arranged in the guiding guide part 431 of slide opening, the anti-delinking part 432 being arranged in anticreep slide opening and the limiting section 433 be positioned at outside matrix slip pipe, and the cross sectional shape that the guide part 431 of each paw, anti-delinking part 432 and limiting section 433 are combined to form is I-shaped; Each paw is run through along the radial direction of matrix slip pipe in the guide part 431 of each paw and anti-delinking part 432, and the inwall in the inwall of the guide part 431 of each paw, the inwall of anti-delinking part 432 and pressing plate portion 41 is equipped with multiple puncture; Threaded portion is driven to be arranged on the side end wall of anti-delinking part adjacent flat nut, the shape of anti-delinking part and anticreep slide opening adaptation; Drive threaded portion to protrude to be arranged on the side end wall of anti-delinking part adjacent flat nut, make to drive threaded portion can not move in anticreep slide opening.
The present embodiment is when assembling, and can first plane nut sleeve is located on matrix slip pipe, clamping is axial back-up ring well; Again along the radial direction from outside to inside of matrix slip pipe, the guide part of each paw and anti-delinking part are filled in a corresponding radially-directed spacing hole 12, the driving threaded portion of paw is made to be crimped on the periphery in plane nut flat thread portion, turn plane nut, can make each paw close to each other towards matrix slip pipe center.
The present embodiment is when carrying out clamp operation, and adopt hook type spanner (also claiming hook spanner) operation, hook type spanner can drive plane nut around matrix slip pipe reciprocating rotation after catching on the binding groove on plane nut periphery wall; Plane nut is in reciprocating rotation, drive its flat thread portion reciprocating rotation, and then drive each paw by the driving threaded portion of engaging adaptation with it, because each paw can only move back and forth along the radial direction of matrix slip pipe under the guide and limit effect of radially-directed spacing hole 12, thus make the move mode of each paw be close to each other towards slip pipe center or away from, thus clamping or unclamp the electric power cable being arranged in clamp hole 5.
Voltage transformer 7 is annular, on the sheathed periphery wall being fixed on matrix slip pipe; Because electric power cable passes from matrix slip pipe tube chamber, this voltage transformer can obtain lower induced voltage by induction mode, uses for the power supply as auxiliary equipment.Such as, the auxiliary equipment such as camera, temperature sensor, humidity sensor or the lightning stroke counter with wireless transmit/receive units can be fixedly installed in the bottom of matrix slip pipe, for monitoring in real time the environment around this wire clamp, and send real time information to distance host by wireless transmit/receive units, for power circuit intellectuality provides basic data; Voltage transformer in the present embodiment then stablizes continuable electric power supply for these auxiliary equipment provide.
The present embodiment is by being arranged on the centerline of high-voltage mutual inductor cable clamping, and its gravity centre distribution is comparatively reasonable, when on the overhead power line of high-altitude, is conducive to alleviating vibration; In addition, the present embodiment drives paw clamping electric power cable by flat thread portion, compares with by traditional bolt assembly clamping electric power cable, particularly excellent in anti-loosening effect, effectively ensures the reliability of long-term work.
Obviously, the above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all execution modes.And these belong to connotation of the present invention the apparent change of extending out or variation still belong to protection scope of the present invention.
Claims (1)
1. a high-voltage mutual inductor, is characterized in that: comprise matrix, plane nut, axial back-up ring, paw and voltage transformer; Matrix is provided with slip pipe, the radially-directed spacing hole be arranged on slip pipe, the annular slot that is arranged on the gear platform on slip pipe periphery wall and is arranged on slip pipe periphery wall; Each radially-directed spacing hole comprises guiding slide opening and the anticreep slide opening of connection; On the sheathed periphery wall being fixed on matrix slip pipe of voltage transformer; Each paw is provided with pressing plate portion, along the radial guide runner portion extended to form of matrix slip pipe and the driving threaded portion be arranged in guide runner portion; Each paw guide runner portion is provided with the guide part being arranged in guiding slide opening, the anti-delinking part being arranged in anticreep slide opening and the limiting section be positioned at outside matrix slip pipe; Axial back-up ring is fixed in the annular slot on matrix slip pipe periphery wall; Plane nut rotation is arranged on the periphery wall of matrix slip pipe, and between gear platform and axial back-up ring; The side that plane nut adjoins gear platform is provided with for driving threaded portion to engage adaptive flat thread portion with each paw; Gear platform is positioned at base shaft one end upwards, and axial back-up ring is positioned at the base shaft other end upwards; Plane nut is ring-type, and plane nut adjoins a side of axial back-up ring and axial back-up ring slides adjacent; The quantity of paw is identical with the quantity of radially-directed spacing hole; Plane nut drives its flat thread portion reciprocating rotation, so drive each paw towards slip pipe center close to each other or away from.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610096732.4A CN105575610A (en) | 2016-01-15 | 2016-01-15 | High-voltage mutual inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610096732.4A CN105575610A (en) | 2016-01-15 | 2016-01-15 | High-voltage mutual inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105575610A true CN105575610A (en) | 2016-05-11 |
Family
ID=55885641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610096732.4A Withdrawn CN105575610A (en) | 2016-01-15 | 2016-01-15 | High-voltage mutual inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105575610A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202917711U (en) * | 2012-11-13 | 2013-05-01 | 北京振兴计量测试研究所 | Fastening fixture for tail cover of electric connector |
| CN203679326U (en) * | 2014-01-24 | 2014-07-02 | 华南理工大学 | Novel flexible four-jaw chuck |
| CN204276947U (en) * | 2014-12-01 | 2015-04-22 | 温岭市深澳机床厂(普通合伙) | Scroll chuck |
-
2016
- 2016-01-15 CN CN201610096732.4A patent/CN105575610A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202917711U (en) * | 2012-11-13 | 2013-05-01 | 北京振兴计量测试研究所 | Fastening fixture for tail cover of electric connector |
| CN203679326U (en) * | 2014-01-24 | 2014-07-02 | 华南理工大学 | Novel flexible four-jaw chuck |
| CN204276947U (en) * | 2014-12-01 | 2015-04-22 | 温岭市深澳机床厂(普通合伙) | Scroll chuck |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20160511 |