CN105551717A - High-voltage mutual inductor with good cable clamping strength - Google Patents
High-voltage mutual inductor with good cable clamping strength Download PDFInfo
- Publication number
- CN105551717A CN105551717A CN201610093355.9A CN201610093355A CN105551717A CN 105551717 A CN105551717 A CN 105551717A CN 201610093355 A CN201610093355 A CN 201610093355A CN 105551717 A CN105551717 A CN 105551717A
- Authority
- CN
- China
- Prior art keywords
- paw
- mutual inductor
- radial
- voltage mutual
- press
- 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- Withdrawn
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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
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- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transformers For Measuring Instruments (AREA)
Abstract
The invention discloses a high-voltage mutual inductor with good cable clamping strength. The high-voltage mutual inductor comprises a compression ring, a core tube, a press jaw assembly and a voltage mutual inductor, wherein the compression ring is rotationally arranged on the outer circumferential wall of the core tube, and comprises a ratchet ring provided with a plurality of slope grooves on the inner circumferential wall; a plurality of wedge-shaped anti-fall teeth are arranged in each slope groove of the ratchet ring; a plurality of radial guide holes are formed in the tube wall of the core tube; the press jaw assembly comprises a plurality of press jaws and reset springs for providing reset elastic force for the press jaws; each press jaw comprises a press plate part and a radial sliding column; wedge-shaped teeth are arranged on the outer side end of each radial sliding column; the press plate part of each press jaw is positioned in the tube cavity of the core tube, the radial sliding column of each press jaw penetrates through the corresponding radial guide hole in the tube wall of the core tube, and a cable clamping hole is formed in a clamping way among the press plate parts of the press jaws; the voltage mutual inductor comprises an annular substrate which is concentrically arranged with the cable clamping hole; and under the effect of the elastic force of the reset springs, the wedge-shaped teeth on each radial sliding column are propped against the wedge-shaped anti-fall tooth in the corresponding slope groove. The high-voltage mutual inductor is good in cable clamping strength.
Description
Technical field
The invention belongs to high-tension electricity technical field, be specifically related to the good high-voltage mutual inductor of a kind of clamp intensity.
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 the good high-voltage mutual inductor of clamp intensity that a kind of clamp intensity is better, have better firmness.
The technical scheme realizing the object of the invention is: the good high-voltage mutual inductor of a kind of clamp intensity, comprises pressure ring, core pipe, paw assembly and voltage transformer; Pressure ring rotates and is arranged on core pipe periphery wall; Pressure ring comprises the sour jujube ring that internal perisporium is provided with multiple slopes groove; Multiple wedge shape anticreep tooth is provided with in each slope groove of sour jujube ring; Core tube wall is provided with multiple radially-directed hole; Paw assembly comprises multiple paw and provides the back-moving spring of reseting elasticity for paw; Each paw comprises pressing plate portion and is arranged on the radial traveller on pressing plate portion outer wall; The outboard end of each radial traveller is provided with the chisel teeth with the wedge shape anticreep tooth adaptation in the groove of sour jujube ring slope; The pressing plate portion of each paw is arranged in core pipe tube chamber, and the radial traveller of each paw is through the corresponding radially-directed hole on core tube wall, and the pressing plate portion clamping of each paw forms a clamp hole; Each radially-directed hole comprises containing hole and the guiding slide opening of connection; Guiding slide opening in each radial traveller and radially-directed hole is adaptive, each radial traveller under the position-limiting action of guiding slide opening along core caliber to reciprocatingly sliding; Each back-moving spring is set on a corresponding radial traveller; Each radial traveller is fixed with mat, and the outer end of each back-moving spring is connected in this mat, and the inner of each back-moving spring is connected on the diapire of containing hole; Voltage transformer comprises the annular matrix arranged with one heart with clamp hole; Under the elastic force effect of back-moving spring, on the wedge shape anticreep tooth of the chisel teeth apical grafting on each radial traveller in a corresponding slope groove.
The present invention owing to having thread clamping mechanism, therefore is easy to install location; The present invention is positioned each paw by the slope groove with wedge shape anticreep tooth in addition, the technique effect preventing from falling back can be played, compare with by traditional bolt assembly clamping electric power cable, particularly excellent in anti-loosening effect, effectively ensure the reliability of long-term work.
Accompanying drawing explanation
Fig. 1 is a kind of perspective view of the first structure of the present invention;
Fig. 2 partly cuts open structural representation for the one of high-voltage mutual inductor shown in Fig. 1;
Fig. 3 is the A-A cutaway view of Fig. 2;
A kind of explosive view that Fig. 4 is high-voltage mutual inductor shown in Fig. 1;
Fig. 5 is that the one of the second structure of the present invention partly cuts open structural representation.
Embodiment
(embodiment 1)
The present embodiment is the good high-voltage mutual inductor of a kind of clamp intensity, sees shown in Fig. 1 to Fig. 4, comprises a pressure ring 1, core pipe 2, four paw assemblies 3, axial back-up ring 4 and voltage transformer 8.
Pressure ring 1 comprises sour jujube ring 11, separation two clamping connection rings 12 of sour jujube ring both sides and multiple connecting rivet 13, two clamping connection ring clamping sour jujube rings, connecting rivet axially runs through described sour jujube ring and two clamping connection rings along core pipe, thus sour jujube ring is fixedly connected into an entirety with two clamping connection rings.The internal perisporium of sour jujube ring is provided with multiple slopes groove 111, is provided with multiple wedge shape anticreep tooth 112 in the groove of each slope; In the present embodiment, the internal perisporium of sour jujube ring and the internal perisporium of clamping connection ring coplanar, the periphery wall of sour jujube ring and the periphery wall of clamping connection ring coplanar; The periphery wall of pressure ring is provided with multiple binding groove 14 axially running through whole pressure ring along core pipe, and the operation of twisting of pressure ring adopts hook type spanner (being commonly called as hook spanner).In concrete practice, the internal diameter of clamping connection ring also can be slightly smaller than the internal perisporium of sour jujube ring.Slope groove in the present embodiment refers to the groove that depth of groove increases progressively from a side gradually to another side.
The periphery wall of core pipe 2 is provided with the annular gear platform 21 of evagination and the annular groove 22 of indent, and core pipe is provided with multiple radially-directed hole 23 on the tube wall between annular gear platform and annular groove; In the present embodiment, each radially-directed hole is along core caliber to running through core tube wall, each radially-directed hole comprises containing hole 231 and the guiding slide opening 232 of connection, containing hole and guiding slide opening set gradually along direction from outside to inside, containing hole and guiding slide opening are all circular holes, the aperture of containing hole is greater than the aperture of guiding slide opening, and the cross sectional shape in each radially-directed hole is T-shaped.Axial back-up ring is arranged in the annular groove of core pipe.Pressure ring rotates and is arranged on core pipe periphery wall, and the two side ends of pressure ring is slided adjacent with annular gear platform and axial back-up ring respectively.
Paw assembly 3 comprises multiple paw 31, provides the back-moving spring 32 of reseting elasticity for paw and is fixedly installed on the mat 33 on each paw; Each paw comprises pressing plate portion 311, the radial traveller 312 be arranged on pressing plate portion outer wall, the annular slot 313 be arranged on radial traveller periphery wall; Guiding slide opening in each radial traveller and radially-directed hole is adaptive, each radial traveller under the position-limiting action of guiding slide opening along core caliber to reciprocatingly sliding; The outboard end of each radial traveller is provided with chisel teeth 34; Wedge shape anticreep tooth in each chisel teeth and sour jujube ring slope groove is adaptive.Each mat is fixed in the annular slot of a corresponding radial traveller, each back-moving spring is set on a corresponding radial traveller, each back-moving spring is connected in a corresponding annular mat along core caliber outer end upwards, and back-moving spring is connected on the diapire of containing hole along core caliber the inner upwards;
The pressing plate portion of each paw is arranged in core pipe tube chamber, the radial traveller of each paw is through the corresponding radially-directed hole on core tube wall, under the elastic force effect of back-moving spring, on the wedge shape anticreep tooth of the chisel teeth apical grafting on each radial traveller in a corresponding slope groove of sour jujube ring.Under the position-limiting action of slope groove and chisel teeth, the pressure ring in the present embodiment can only be twisted along a direction, has the technique effect that anti-retrogression is also namely anti-loosening.
The inwall in each paw pressing plate portion is provided with deep-slotted chip breaker 314, and in the present embodiment, the deep-slotted chip breaker clamping in each paw pressing plate portion forms one for clamping the clamp hole 5 of electric power cable.
The present embodiment, in order to connect electricity from insulating power cable, is also provided with multiple puncture 6 in each deep-slotted chip breaker; Specifically, respectively puncture along core caliber to protrusion.The existence of puncture, without the need to carrying 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 casting forming, and each puncture is made when casting forming; In concrete practice, puncture also can adopt alternate manner to make; Such as in each deep-slotted chip breaker, be provided with multiple installation draw-in groove, then install in draw-in groove be inlaid in corresponding one by the die-cut puncture sheet made; Puncture sheet 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 puncture sheet can adopt the material different with paw to make, and especially selects and treats that clamp cable same material used is made, being conducive to obtaining better electrical gas performance.
Voltage transformer comprises annular matrix 81 and intelligent control module 82; Annular matrix is fixedly installed on a clamping connection ring; In the present embodiment, a clamping connection ring is provided with installation gap 121 at a side of adjacent sour jujube ring, and annular matrix is inlaid in this installation gap; In addition, the periphery wall of core pipe is provided with resettlement groove 25, and intelligent control module is arranged in resettlement groove; Intelligent control module can comprise wireless transmit/receive units, and the secondary voltage that intelligent control module is sensed annular matrix by wireless transmit/receive units or current signal send distance host to, to realize accurate long-range no worker monitor; This structure can make full use of space, is conducive to the small-sized and integrated of entirety.This structure makes the present embodiment can use as a high-voltage mutual inductor.
The present embodiment is when operating, hook type spanner is adopted to twist pressure ring, pressure ring is made to drive the wedge shape anticreep tooth in its slope groove to rotate, shortening can be out of shape because each back-moving spring is stressed, the chisel teeth of the radial traveller of each pressing plate is moved towards the side that groove depth in the groove of slope is more shallow, and then make the pressing plate portion of each paw along the radially-inwardly slippage of core pipe, thus clamping is arranged in the electric power cable in clamp hole.
The present embodiment is by being arranged on the longitudinal center line place 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 is positioned each paw by the slope groove with wedge shape anticreep tooth, can play the technique effect preventing from falling back, and compares with by traditional bolt assembly clamping electric power cable, particularly excellent in anti-loosening effect, effectively ensure the reliability of long-term work.
(embodiment 2)
The present embodiment is substantially identical with embodiment 1, difference is: as shown in Figure 5, the present embodiment is no longer arranged on the annular matrix of voltage transformer in clamping connection ring, in the present embodiment, the annular matrix of voltage transformer is fixedly installed on core pipe periphery wall, this scheme is also feasible, structure compacter and be easy to manufacture processing; As long as allow in a word by folder electric power cable through annular matrix.
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. the good high-voltage mutual inductor of clamp intensity, is characterized in that: comprise pressure ring, core pipe, paw assembly and voltage transformer; Pressure ring rotates and is arranged on core pipe periphery wall; Pressure ring comprises the sour jujube ring that internal perisporium is provided with multiple slopes groove; Multiple wedge shape anticreep tooth is provided with in each slope groove of sour jujube ring; Core tube wall is provided with multiple radially-directed hole; Paw assembly comprises multiple paw and provides the back-moving spring of reseting elasticity for paw; Each paw comprises pressing plate portion and is arranged on the radial traveller on pressing plate portion outer wall; The outboard end of each radial traveller is provided with the chisel teeth with the wedge shape anticreep tooth adaptation in the groove of sour jujube ring slope; The pressing plate portion of each paw is arranged in core pipe tube chamber, and the radial traveller of each paw is through the corresponding radially-directed hole on core tube wall, and the pressing plate portion clamping of each paw forms a clamp hole; Each radially-directed hole comprises containing hole and the guiding slide opening of connection; Guiding slide opening in each radial traveller and radially-directed hole is adaptive, each radial traveller under the position-limiting action of guiding slide opening along core caliber to reciprocatingly sliding; Each back-moving spring is set on a corresponding radial traveller; Each radial traveller is fixed with mat, and the outer end of each back-moving spring is connected in this mat, and the inner of each back-moving spring is connected on the diapire of containing hole; Voltage transformer comprises the annular matrix arranged with one heart with clamp hole; Under the elastic force effect of back-moving spring, on the wedge shape anticreep tooth of the chisel teeth apical grafting on each radial traveller in a corresponding slope groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610093355.9A CN105551717A (en) | 2016-01-15 | 2016-01-15 | High-voltage mutual inductor with good cable clamping strength |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610093355.9A CN105551717A (en) | 2016-01-15 | 2016-01-15 | High-voltage mutual inductor with good cable clamping strength |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105551717A true CN105551717A (en) | 2016-05-04 |
Family
ID=55830847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610093355.9A Withdrawn CN105551717A (en) | 2016-01-15 | 2016-01-15 | High-voltage mutual inductor with good cable clamping strength |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105551717A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2793486Y (en) * | 2005-03-28 | 2006-07-05 | 郑春开 | Clasp cable device |
| CN103490350A (en) * | 2013-10-08 | 2014-01-01 | 国家电网公司 | Peeling and cutting tool for outer semi-conducting layer of crosslinked power cable |
| CN204884841U (en) * | 2015-08-17 | 2015-12-16 | 广东腾达电力科技有限公司 | Undercurrent route selection is high accuracy opening CT for device |
-
2016
- 2016-01-15 CN CN201610093355.9A patent/CN105551717A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2793486Y (en) * | 2005-03-28 | 2006-07-05 | 郑春开 | Clasp cable device |
| CN103490350A (en) * | 2013-10-08 | 2014-01-01 | 国家电网公司 | Peeling and cutting tool for outer semi-conducting layer of crosslinked power cable |
| CN204884841U (en) * | 2015-08-17 | 2015-12-16 | 广东腾达电力科技有限公司 | Undercurrent route selection is high accuracy opening CT for device |
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| 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: 20160504 |