CN107394728A - Compound Core Aluminium Strand Cable Expanding Terminal Dead-end Clamp - Google Patents
Compound Core Aluminium Strand Cable Expanding Terminal Dead-end Clamp Download PDFInfo
- Publication number
- CN107394728A CN107394728A CN201710713897.6A CN201710713897A CN107394728A CN 107394728 A CN107394728 A CN 107394728A CN 201710713897 A CN201710713897 A CN 201710713897A CN 107394728 A CN107394728 A CN 107394728A
- Authority
- CN
- China
- Prior art keywords
- strain insulator
- sleeve pipe
- insulator sleeve
- diameter
- sets
- 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
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 20
- 239000004411 aluminium Substances 0.000 title claims abstract description 10
- 150000001875 compounds Chemical group 0.000 title claims abstract description 8
- 239000012211 strain insulator Substances 0.000 claims abstract description 88
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 25
- 238000009987 spinning Methods 0.000 claims abstract description 25
- 239000010959 steel Substances 0.000 claims abstract description 25
- 238000001125 extrusion Methods 0.000 claims abstract description 23
- 238000002788 crimping Methods 0.000 claims abstract description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 208000004141 microcephaly Diseases 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229960001866 silicon dioxide Drugs 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims 1
- 238000003780 insertion Methods 0.000 abstract description 3
- 230000037431 insertion Effects 0.000 abstract description 3
- 239000002131 composite material Substances 0.000 description 9
- 238000009434 installation Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
Classifications
-
- 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
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention belongs to power cable clamping device technical field, a kind of more particularly to Compound Core Aluminium Strand Cable Expanding Terminal Dead-end Clamp, rotary extrusion type spinning steel anchor, strain insulator sleeve pipe, tension force sandwich, strain insulator chuck, internal lining pipe, wire core, drainage plate, rotary extrusion type spinning steel anchor front end sets various outer diameter two-stage screw thread, wherein step of threads external diameter is more than two level major diameter of thread, two level flighting front end sets top, and strain insulator sleeve pipe is the tubular body of together footpath insertion, and the tubular body front end arc is containing；Internal lining pipe external diameter matches with strain insulator casing inner diameter；The containing place of described strain insulator sleeve pipe front end arc sets crimping point；Described liner tube outer surface sets circumferential lines.Because internal lining pipe appearance sets circumferential lines, the frictional force between internal lining pipe and strain insulator sleeve pipe is increased, after rotary extrusion type spinning steel anchor and each assembling components of strain insulator chuck, tension force sandwich, strain insulator sleeve pipe, the fixed internal lining pipe of extruding crimping point, so as to fixed wire.
Description
Technical field
The invention belongs to power cable clamping device technical field, more particularly to a kind of composite core aluminum stranded wire expansive force terminal are resistance to
Bracing cable is pressed from both sides.
Background technology
At present, domestic transmission line of electricity connection wire clamp, it, which fixes, clamped the device of steel-cored aluminium strand, mainly three kinds, one kind
It is wire grafting, loosely, wire easily generates heat the smaller grafting of contact surface；Second, aluminum pipe hydraulic pressure, both ends wire insertion aluminium during installation
Pipe, is then pressurizeed with hydraulic tool, but contact surface is smaller, and grip is not strong；Third, explosion crimping, by the strong impact for moment of detonating
Power makes wire clamp clamp wire, but because powerful impulsive force changes metallographic, mechanical strength reduces, and blast is dangerous.Therefore, at present
All there is installation inconvenience in the connection wire clamp used on domestic transmission line of electricity, contact surface is small, wire easily generates heat, grip deficiency, machine
The defects of tool intensity decreases, it is impossible to be applicable the fixation of new material composite core aluminum stranded wire, clamp connection.Patent No.
2007200347845 patent of invention, some above-mentioned problems are technically overcome, especially in terms of core clamping, be somebody's turn to do
Technology clamps method using spinning and enhances grip force of the tension force sandwich to core, and installation is extremely convenient, may be reused, but
Part is still had several drawbacks, such as：Internal lining pipe can tightly fix the outer layer of composite core aluminum stranded wire, make after installation extrudes
The position (or distance) of wire and strain insulator chuck, tension force sandwich is relatively stable, but outer wall and strain insulator sleeve pipe due to internal lining pipe
Inwall be sawtooth design, the coefficient of friction between internal lining pipe and strain insulator sleeve pipe is relatively low, and in a long time, wire is at itself
Under pulling force, convergent force (ambient temperature effect) or wind-force effect, easily cause strain insulator sleeve pipe to reduce the grip of internal lining pipe, cause
The device loses due effect, or even suddenly big or suddenly small because of the contact surface of internal lining pipe and strain insulator sleeve pipe, and whole device appearance
Corner angle are too many, it is easy to produce electric discharge phenomena, cause on fire, great loss is brought to power supply facilities, influence normal normal
Production and living.
The content of the invention
It is an object of the invention to overcome the shortcomings of above-mentioned technology, and provide a kind of composite core aluminum stranded wire expansive force terminal strain insulator
Wire clamp.
The present invention to achieve the above object, using following technical scheme：A kind of resistance to bracing cable of composite core aluminum stranded wire expansive force terminal
Folder, it is characterised in that：Rotary extrusion type spinning steel anchor, strain insulator sleeve pipe, tension force sandwich, strain insulator chuck, internal lining pipe, wire core, drainage plate, rotation
Pressure type steel anchor front end sets various outer diameter two-stage screw thread, and wherein step of threads external diameter is more than two level major diameter of thread, step of threads and
The rear end internal thread of strain insulator sleeve pipe matches, and the big end internal thread of two level screw thread and strain insulator chuck matches, two level flighting front end
Top is set, and its diameter is identical with the outside diameter of tension force sandwich, the tubular body that strain insulator sleeve pipe penetrates for together footpath, the tubular body
Front end arc is containing, and a formation is in the drainage plate of U-typed outside rear port outer rim, and tension force sandwich is taper body, and its internal diameter is by thin
To thick, tension force sandwich matches with strain insulator chuck, and strain insulator chuck external diameter matches with strain insulator casing inner diameter, strain insulator chuck leading section
Setting inside contracts step, and rear port sets internal thread, and the two level screw thread of the internal thread and rotary extrusion type spinning steel anchor matches；Internal lining pipe external diameter
Match with strain insulator casing inner diameter, its internal diameter matches with wire；The containing place of described strain insulator sleeve pipe front end arc sets crimping
Point, two limit points are symmetrical arranged at strain insulator sleeve pipe front end 1/3, and described drainage plate edges and corners are set in R angles；Described is interior
Bushing pipe outer surface sets circumferential lines；Described tension force sandwich from both ends relatively radially divides equally 180 degree, and to cut out both ends not open-minded
Clearance groove, two cut surfaces of its clearance groove are mutually perpendicular to, and wherein microcephaly port inward flange sets R angles.
Preferably, rotary extrusion type spinning steel anchor at strain insulator sleeve pipe back end interface through silicagel pad with sealing.
Preferably, the curved portions of the drainage plate are semicircle, and its center of circle overlaps with the axial line of strain insulator sleeve pipe, drainage plate
Half-round plate face is vertical with the axial line of strain insulator sleeve pipe, and the square department of drainage plate tilts to the rear end of strain insulator sleeve pipe, with half-round
Plate face forms 150~160 degree of angles, and the square department plate face of drainage plate is symmetrical arranged four screws, drainage plate and strain insulator sleeve pipe one
It is body formed.
Preferably, the rear end of the rotary extrusion type spinning steel anchor is radially arranged U-typed plate body, is set in U-typed plate body oval
Hole, U-typed plate body are integrally formed with step of threads, two level screw thread, radial direction rounded square body, top.
The beneficial effects of the invention are as follows：1. the airflow design of drainage plate reduces the electric discharge phenomena of the present apparatus, energy is reduced
Consumption；2. because internal lining pipe appearance sets circumferential lines, the frictional force between internal lining pipe and strain insulator sleeve pipe is increased, when rotary extrusion type spinning steel
Anchor is with after strain insulator chuck, tension force sandwich, each assembling components of strain insulator sleeve pipe, extruding the fixed internal lining pipe of crimping point, so as to fix wire；
3. the setting of detonation pressure point makes strain insulator chuck preferably be fixed, in the pressure effect that is spirally connected of rotary extrusion type spinning steel anchor and strain insulator sleeve pipe
Under, more stable radial pressure is produced to tension force sandwich, so that tension force sandwich produces bigger grip；4. structure of the present invention
Simply, easy for installation, effect becomes apparent.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is Fig. 1 A-A direction views；
Fig. 3 is rotary extrusion type spinning steel anchor structure schematic diagram；
Fig. 4 is the radial view of Fig. 3 radial direction rounded square bodies；
Fig. 5 is tension force sandwich structure schematic diagram；
Fig. 6 is the big end radial views of Fig. 5；
Fig. 7 is the jacket structured schematic diagram of strain insulator；
Fig. 8 is strain insulator sleeve structure schematic diagram；
Fig. 9 is Fig. 8 A-A direction views；
Figure 10 is Fig. 8 B direction views；
Figure 11 is internal lining pipe structural representation.
Embodiment
For the ease of understanding the present invention, the present invention is described more fully below with reference to relevant drawings.In accompanying drawing
Give some embodiments of the present invention.But the present invention can realize in many different forms, however it is not limited to this paper institutes
The embodiment of description.On the contrary, the purpose for providing these embodiments is made to the disclosure more thorough and comprehensive.
It should be noted that when element is referred to as " being fixedly arranged on " another element, it can be directly on another element
Or there may also be element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement are for illustrative purposes only.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention
The implication that technical staff is generally understood that is identical.Term used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein " and/or " include one or more phases
The arbitrary and all combination of the Listed Items of pass.The concrete operating principle that the invention will now be described in detail with reference to the accompanying drawings.
As shown in figure 1, a kind of Compound Core Aluminium Strand Cable Expanding Terminal Dead-end Clamp, including rotary extrusion type spinning steel anchor 1, strain insulator sleeve pipe 2,
Tension force sandwich 3, strain insulator chuck 4, internal lining pipe 5, wire core 6, drainage plate 7, silicagel pad 8, crimping point 9, limit point 10；Rotary extrusion type spinning
The front end of steel anchor 1 sets various outer diameter two-stage screw thread, and wherein step of threads external diameter is more than two level major diameter of thread, step of threads and strain insulator
The rear end internal thread of sleeve pipe 2 matches, and radial direction rounded square body, two level screw thread are arranged between step of threads and two level screw thread
Match with the big end internal thread of strain insulator chuck 4, two level flighting front end, which is set, to be come directly towards, and the big end of its diameter and tension force sandwich 3 is straight
Footpath is identical, and the rear end of rotary extrusion type spinning steel anchor 1 is radially arranged U-typed plate body, and elliptical aperture, U-typed tabular are set in U-typed plate body
Body is integrally formed with step of threads, two level screw thread, radial direction rounded square body, top；Strain insulator sleeve pipe 2 is the insertion of together footpath
Tubular body, the tubular body front end arc is containing, and a formation is in the drainage plate 7 of U-typed, the arc of drainage plate 7 outside rear port outer rim
Portion is semicircle, and its center of circle overlaps with the axial line of strain insulator sleeve pipe 2, the half-round plate face of drainage plate 7 and the axial line of strain insulator sleeve pipe 2
Vertically, the square department of drainage plate 7 is tilted to the rear end of strain insulator sleeve pipe 2, and 150~160 degree of angles, drainage are formed with half-round plate face
The square department plate face of plate 7 is symmetrical arranged four screws, and drainage plate 7 is integrally formed with strain insulator sleeve pipe 2；Tension force sandwich 3 is conial tube
Body, from fine to coarse, tension force sandwich 3 matches its internal diameter with strain insulator chuck 4, the external diameter of strain insulator chuck 4 and the internal diameter phase of strain insulator sleeve pipe 2
Match somebody with somebody, the leading section of strain insulator chuck 4, which is set, inside contracts step, and rear port sets internal thread, the two level spiral shell of the internal thread and rotary extrusion type spinning steel anchor 1
Line matches；The external diameter of internal lining pipe 5 matches with the internal diameter of strain insulator sleeve pipe 2, and its internal diameter matches with wire；Composite core aluminum stranded wire passes through
Internal lining pipe 5 penetrates strain insulator sleeve pipe 2 again, divests composite core aluminum stranded wire outer layer and exposes wire core 6, and wire core 6 is passed through into strain insulator
Chuck 4 penetrates tension force sandwich 3 again, and the two level screw thread of rotary extrusion type spinning steel anchor 1 compresses tension force sandwich 3, tension force with being spirally connected with strain insulator chuck 4
Sandwich 3 produces grip in the presence of strain insulator chuck 4 to wire core 6, fixes wire, rotary extrusion type spinning steel anchor 1 is pushed forward into resistance to
Open sleeve pipe 2 and be spirally connected through step of threads and is fixed in strain insulator sleeve pipe 2, through silicon at rotary extrusion type spinning steel anchor 1 and the back end interface of strain insulator sleeve pipe 2
Rubber cushion 8 seals, and strain insulator chuck 4 is in the middle part of strain insulator sleeve pipe 2, and its front end inside contracts step and fixed through limit point 10, and internal lining pipe 5 is put
The port of strain insulator sleeve pipe 2 is stretched out in the front end of strain insulator sleeve pipe 2 and part, is fixed through crimping point 9；The described front end arc of strain insulator sleeve pipe 2
The containing place of shape sets crimping point 9, and two limit points 10, the described corner angle of drainage plate 7 are symmetrical arranged at the front end 1/3 of strain insulator sleeve pipe 2
Place is set in R angles；The described outer surface of internal lining pipe 5 sets circumferential lines；Described tension force sandwich 3 is relatively radially equal from both ends
Point 180 degree cuts out the clearance groove that both ends are not opened, and two cut surfaces of its clearance groove are mutually perpendicular to, wherein microcephaly port inward flange
R angles are set.
In use, composite core aluminum stranded wire is penetrated into internal lining pipe 5, strain insulator sleeve pipe 2 is then passed through, is divested outside composite core aluminum stranded wire
Layer, exposes wire core 6, wire core 6 is run through into strain insulator chuck 4, then penetrates tension force sandwich 3, and is placed on tension force sandwich 3
In strain insulator chuck 4, the two level screw thread of rotary extrusion type spinning steel anchor 1 is spirally connected with strain insulator chuck 4, radially pushes tension force sandwich 3, then by spinning
Formula steel anchor 1 is pushed further into strain insulator sleeve pipe 2, and is spirally connected fixation with strain insulator sleeve pipe 2, while internal lining pipe 5 is in strain insulator sleeve pipe front end
It is interior, finally crimping point 9 and the extruding of limit point 10 are fixed.
One embodiment of the present of invention is described in detail above, but the content is only the preferable implementation of the present invention
Example, it is impossible to be considered as the practical range for limiting the present invention.All equivalent changes made according to the present patent application scope and improvement
Deng, all should still belong to the present invention patent covering scope within.
Claims (4)
- A kind of 1. Compound Core Aluminium Strand Cable Expanding Terminal Dead-end Clamp, it is characterised in that：Rotary extrusion type spinning steel anchor (1), strain insulator sleeve pipe (2), Tension force sandwich (3), strain insulator chuck (4), internal lining pipe (5), wire core (6), drainage plate (7), rotary extrusion type spinning steel anchor (1) front end are set Various outer diameter two-stage screw thread, wherein step of threads external diameter are more than two level major diameter of thread, the rear end of step of threads and strain insulator sleeve pipe (2) Internal thread matches, and the big end internal thread of two level screw thread and strain insulator chuck (4) matches, and two level flighting front end sets top, its Diameter is identical with the outside diameter of tension force sandwich (3), the tubular body that strain insulator sleeve pipe (2) penetrates for together footpath, the tubular body front end Arc is containing, forms the drainage plate (7) in U-typed outside rear port outer rim, and tension force sandwich (3) is taper body, its internal diameter by It is thin that to slightly, tension force sandwich (3) matches with strain insulator chuck (4), and strain insulator chuck (4) external diameter matches with strain insulator sleeve pipe (2) internal diameter, Strain insulator chuck (4) leading section, which is set, inside contracts step, and rear port sets internal thread, the two level of the internal thread and rotary extrusion type spinning steel anchor (1) Screw thread matches；Internal lining pipe (5) external diameter matches with strain insulator sleeve pipe (2) internal diameter, and its internal diameter matches with wire；Described strain insulator Arc containing place in sleeve pipe (2) front end sets crimping point (9), and two limit points are symmetrical arranged at strain insulator sleeve pipe (2) front end 1/3 (10), described drainage plate (7) edges and corners are set in R angles；Described internal lining pipe (5) outer surface sets circumferential lines；It is described Tension force sandwich (3) relatively radially divide equally 180 degree from both ends and cut out the clearance groove do not opened at both ends, two cuttings of its clearance groove Face is mutually perpendicular to, and wherein microcephaly port inward flange sets R angles.
- 2. Compound Core Aluminium Strand Cable Expanding Terminal Dead-end Clamp according to claim 1, it is characterised in that：Rotary extrusion type spinning steel anchor (1) with being sealed at strain insulator sleeve pipe (2) back end interface through silicagel pad (8).
- 3. Compound Core Aluminium Strand Cable Expanding Terminal Dead-end Clamp according to claim 1, it is characterised in that：The drainage plate (7) curved portions are semicircle, and its center of circle overlaps with the axial line of strain insulator sleeve pipe (2), the half-round plate face and strain insulator of drainage plate (7) The axial line of sleeve pipe (2) is vertical, and the square department of drainage plate (7) tilts to the rear end of strain insulator sleeve pipe (2), is formed with half-round plate face 150~160 degree of angles, the square department plate face of drainage plate (7) are symmetrical arranged four screws, drainage plate (7) and strain insulator sleeve pipe (2) one It is body formed.
- 4. Compound Core Aluminium Strand Cable Expanding Terminal Dead-end Clamp according to claim 1, it is characterised in that：The rotary extrusion type spinning steel The rear end of anchor (1) is radially arranged U-typed plate body, sets elliptical aperture in U-typed plate body, U-typed plate body and step of threads, Two level screw thread, radial direction rounded square body, top are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710713897.6A CN107394728A (en) | 2017-08-18 | 2017-08-18 | Compound Core Aluminium Strand Cable Expanding Terminal Dead-end Clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710713897.6A CN107394728A (en) | 2017-08-18 | 2017-08-18 | Compound Core Aluminium Strand Cable Expanding Terminal Dead-end Clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107394728A true CN107394728A (en) | 2017-11-24 |
Family
ID=60352859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710713897.6A Pending CN107394728A (en) | 2017-08-18 | 2017-08-18 | Compound Core Aluminium Strand Cable Expanding Terminal Dead-end Clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107394728A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109546600A (en) * | 2018-10-19 | 2019-03-29 | 甘国强 | Tension conductor cable strain clamp |
| CN110247355A (en) * | 2018-03-09 | 2019-09-17 | 华北电力大学 | A kind of strain clamp for strand type carbon fiber composite core wire |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103354339A (en) * | 2013-07-31 | 2013-10-16 | 蔡威 | Expansive force terminal strain clamp of composite core aluminum-stranded conductor |
| CN203398710U (en) * | 2013-07-31 | 2014-01-15 | 蔡威 | Composite core aluminum stranded wire expansion terminal strain clamp |
-
2017
- 2017-08-18 CN CN201710713897.6A patent/CN107394728A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103354339A (en) * | 2013-07-31 | 2013-10-16 | 蔡威 | Expansive force terminal strain clamp of composite core aluminum-stranded conductor |
| CN203398710U (en) * | 2013-07-31 | 2014-01-15 | 蔡威 | Composite core aluminum stranded wire expansion terminal strain clamp |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110247355A (en) * | 2018-03-09 | 2019-09-17 | 华北电力大学 | A kind of strain clamp for strand type carbon fiber composite core wire |
| CN109546600A (en) * | 2018-10-19 | 2019-03-29 | 甘国强 | Tension conductor cable strain clamp |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20171124 |