CN105896115A - Power line clamp for overhead line - Google Patents
Power line clamp for overhead line Download PDFInfo
- Publication number
- CN105896115A CN105896115A CN201610286317.5A CN201610286317A CN105896115A CN 105896115 A CN105896115 A CN 105896115A CN 201610286317 A CN201610286317 A CN 201610286317A CN 105896115 A CN105896115 A CN 105896115A
- Authority
- CN
- China
- Prior art keywords
- tube
- core pipe
- plane nut
- paw
- core
- 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- Withdrawn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
-
- 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
- H01F38/28—Current transformers
- H01F38/30—Constructions
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/01—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the form or arrangement of the conductive interconnection between the connecting locations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/03—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations
- H01R11/09—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations the connecting locations being identical
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
- H01R4/2404—Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation
- H01R4/2408—Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation actuated by clamping screws
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/38—Clamped connections, spring connections utilising a clamping member acted on by screw or nut
-
- 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
- H01F38/28—Current transformers
- H01F38/30—Constructions
- H01F2038/305—Constructions with toroidal magnetic core
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Clamps And Clips (AREA)
Abstract
The invention discloses a power line clamp for an overhead line. The power line clamp comprises a base tube, a core tube, a set of pressing claw assembly and a plane nut, wherein the inner circumferential wall of the base tube is equipped with a pressing boss, a radial limiting slide hole is formed in the tube wall of the core tube, and the inner circumferential wall of the core tube is equipped with an annular blocking table; the pressing claw assembly comprises multiple pressing claws, and each pressing claw comprises a pressing plate part, a guide slide block part and a driving threaded part; the plane nut is disposed in the tube chamber of the core tube in a rotatable manner; the plane nut comprises a plane threaded part which is meshed and fit with the driving threaded part of each pressing claw; and an installation screw hole equipped with a built-in temperature sensing device is formed in the base tube. The power line clamp disclosed by the invention can effectively prevent loosening.
Description
Technical field
The invention belongs to overhead transmission line electric armour clamp technical field, be specifically related to a kind of overhead transmission line power line clamp.
Background technology
In the construction of overhead power line, when cable Xu Zuo branch or when continuing, needing will with overhead transmission line power line clamp
Two insulated conductors link together.Overhead transmission line electric lines of force fixture has a simple installation, and low cost is safe and reliable non-maintaining
Feature.Without blocking leader cable, can do cable branch without peelling off the insulating barrier of cable, joint is completely insulated, can charged make
Industry, can make on-the-spot branch in cable optional position;It is not required to use termination rack, coupling box;And joint warp resistance, shockproof, waterproof,
Anticorrosion is aging;Using insulated over-head line power line clamp to do cable branch, comprehensive benefit is obvious, and cost performance is better than conventional
Conventional coupling arrangement.
Traditional overhead transmission line power line clamp mainly by strengthen housing, piercing blade, waterproof silicone grease, high-strength bolt and
Nut forms, and the preferred torque nut of its nut, its structure is the most ripe, also obtains relatively broad application.But conventional overhead
Circuit power line clamp there is also weak point, and the pressure of clamp relies on the pressure of plain bolt assembly, and its fastness is poor, holds
Easily loosen.
Summary of the invention
It is an object of the invention to provide a kind of overhead transmission line power line clamp with real time temperature control function.
The technical scheme realizing the object of the invention is: a kind of overhead transmission line power line clamp, it is characterised in that: include one
Base tube, core pipe, a set of paw assembly and a plane nut;The internal perisporium of base tube is provided with crimping boss, the tube wall of core pipe
Being provided with radially spacing slide opening, the internal perisporium of core pipe is provided with the annular gear platform of inwardly projecting formation;Paw assembly includes multiple
Paw, each paw includes pressing plate portion, the guide runner portion of the inwardly projecting formation of inwall from pressing plate portion and is arranged on guide runner
Driving threaded portion in portion;Each guide runner portion inserts on core pipe in a corresponding spacing slide opening of radial direction, and each driving threaded portion is stretched
Entering to the tube chamber of core pipe, each pressing plate portion is positioned between base tube inwall and core tube wall;Each pressing plate portion and a corresponding crimping are convex
Platform clamping forms a clamp hole;Plane nut rotation is arranged in core pipe tube chamber, and be positioned at each paw driving threaded portion and
Between core pipe gear platform;Plane nut includes driving threaded portion engage the flat thread portion of adaptation and be positioned at plane spiral shell with each paw
The fastening part of female center;The periphery wall of plane nut and core inside pipe wall slide adjacent;Plane nut adjoins a side of gear platform
Slide adjacent with gear platform;Plane nut arranges flat thread portion away from another side of gear platform;Flat thread portion is annular, plane
Threaded portion is provided with archimedean spiral groove, and the driving threaded portion of each paw assembly is provided with and this archimedean spiral groove is adaptive
Thread groove, each side driving threaded portion to be arranged on guide runner portion, place adjacent flat nut;Base tube is provided with radially
Run through the installation screw of base tube wall body;This installation screw is fixed with a temperature sensing device.
In such scheme, temperature sensing device is provided with as puncturing the heat conduction used convex close to one end of core tube hub axis
Platform.
The present invention has positive effect: (1) present invention drives paw clamping electric power cable by flat thread portion, and by passing
The bolt assembly clamping electric power cable of system is compared, and can apply bigger pressure, and have excellent anti-loosening effect, be effectively ensured
The reliability of long-term work.(2) present invention is by being arranged on cable clamping the center of overhead transmission line power line clamp,
Its gravity centre distribution is relatively reasonable, when on the overhead power line of high-altitude, is conducive to alleviating vibration.(3) it is provided with due to base tube
Extend radially through the installation screw of pressure pipe portion wall body along base tube, installation screw is fixed with temperature sensing device;So the present invention
Also there is real time temperature control function.
Accompanying drawing explanation
Fig. 1 is a kind of perspective view of the first structure of the present invention;
Fig. 2 is a kind of perspective view when another angle is observed of the wire clamp shown in Fig. 1;
Fig. 3 is a kind of front view of wire clamp shown in Fig. 1;
Fig. 4 is that shown in Fig. 1, the one of wire clamp partly cuts open structural representation;
Fig. 5 is a kind of explosive view of wire clamp shown in Fig. 1;
Fig. 6 is a kind of explosive view during observation of another angle of wire clamp shape shown in Fig. 1;
Fig. 7 is the explosive view that wire clamp shown in Fig. 6 decomposes further;
Fig. 8 is a kind of perspective view of wire clamp midplane nut shown in Fig. 1;
Fig. 9 is that the one of the second structure of the present invention partly cuts open structural representation;
Figure 10 is the close-up schematic view in Fig. 9 at B;
Figure 11 is that the one of the third structure of the present invention partly cuts open structural representation.
Detailed description of the invention
(embodiment 1)
The present embodiment is a kind of overhead transmission line power line clamp, as shown in Fig. 1 to Fig. 8,
Including 1, core pipe 2 of a base tube, a set of paw assembly 3 and a plane nut 4;The internal perisporium of base tube is along base tube axle
To being provided with multiple crimping boss 11, the inwall of each crimping boss is provided with arcuate groove 111;The internal perisporium of base tube the most also sets along base tube
There is multiple positioning runner 12;The periphery wall of core pipe is provided with multiple support flange 21 extended along base tube radially protruding, respectively supports
The outboard end of flange is positioned in a corresponding positioning runner, thus core pipe is supported in the tube chamber being positioned at base tube;Core pipe and base
Pipe is arranged concentrically and is positioned at base tube tube chamber;The tube wall of core pipe is provided with the spacing slide opening of multiple radial direction 22, each radially spacing slide opening
All extend radially through core tube wall along base tube;Each radially spacing slide opening be positioned at core pipe axially on middle part, each radially spacing hole
Radial cross-sectional shape is I-shaped;The internal perisporium of core pipe is provided with the annular gear platform 23 of inwardly projecting formation;Paw assembly includes
Multiple paws 5, each paw includes pressing plate portion 51, the guide runner portion 52 of the inwardly projecting formation of inwall from pressing plate portion and is arranged on
Driving threaded portion 53 in guide runner portion;Pressing plate portion is axially extending along base tube, and guide runner portion radially extends along base tube;Each pressure
The outer wall in pawl pressing plate portion is provided with arc clip slot 511.
Each guide runner portion inserts on core pipe in a corresponding spacing slide opening of radial direction, and each driving threaded portion stretches to core pipe
In tube chamber, each pressing plate portion is positioned between base tube inwall and core tube wall;Each paw is in the guide and limit effect of radially spacing slide opening
The lower radial direction along base tube reciprocatingly slides;The radial cross-sectional shape in each guide runner portion is adaptive with radial direction spacing hole I-shaped.
In the present embodiment, the arcuate groove of a corresponding crimping boss is just arranged by the arc clip slot of each paw, and this paw
Arc clip slot and this crimping boss arcuate groove clamping formed a clamp hole 6, each clamp hole for clamping one electric lines of force
Cable.In the present embodiment, the size in each clamp hole can be different, for clamping the cable of different thicknesses.
Plane nut is arranged in core pipe tube chamber, and keeps off between platform in the driving threaded portion of each paw and core pipe;Plane
Nut includes driving threaded portion engage the flat thread portion 41 of adaptation and be positioned at the fastening of plane nut center with each paw
Portion 42, plane nut adjoins the flat thread portion that arranges on a side of paw assembly, another side of plane nut and core pipe gear
Platform slides adjacent;The periphery wall of plane nut and core inside pipe wall slide adjacent;Flat thread portion is annular, and flat thread sets in portion
There is archimedean spiral groove, the thread groove that driving threaded portion is provided with and this archimedean spiral groove is adaptive of each paw assembly,
Each side driving threaded portion to be arranged on guide runner portion, place adjacent flat nut.
The present embodiment, in order to connect electricity on insulating power cable, is also provided with multiple wearing in each arcuate groove and each arc clip slot
Thorn 7;Specifically, respectively puncture along base tube radially protruding.The existence punctured, can not carried out at peeling insulating power cable
Reason, can effectively connect electricity.In concrete practice, if to be clamped is bare wire, then can be not provided with puncturing.
In the present embodiment, each paw is the integral piece made by casting forming, and each crimping boss and base tube are by watering
Casting the integral piece that shape is made, each puncture is made when casting forming;In concrete practice, puncture and may be used without alternate manner system
Become;In each arcuate groove and each arc clip slot, such as it is provided with multiple installation draw-in groove, then embedding by the die-cut puncture sheet made
Being contained in corresponding one and install in draw-in groove, puncture sheet and include installation portion and thorn blade, installation portion is inlaid in installation draw-in groove, stings blade
Then expose installation draw-in groove and form puncture.The benefit of this structure is to puncture sheet the material different with paw can be used to make, especially
It is to select and treat that same material used by clamp cable is made, and is conducive to obtaining preferable electric property.
The fastening part of the present embodiment midplane nut is interior hexagonal shape fastener hole or interior hexagonal shape binding groove, and it twists operation
Use inner hexagon spanner;In concrete practice, described fastening part just can use other shape, the most square or in-line or Flos Mume
Shape, all can select.
In the present embodiment, the quantity of crimping boss and paw is identical, is all four, therefore the present embodiment can form four
Individual clamp hole, is especially suited as branch connection wire clamp and uses.
In concrete practice, crimping boss and the quantity of paw can select according to actual needs, such as two or three
Deng, it is all feasible.
Plane nut, in reciprocating rotation, drives its flat thread portion reciprocating rotation, and then by engaging adaptation
Threaded portion is driven to drive each paw, due to each paw footpath only along base tube under the guide and limit effect of radially spacing slide opening
To moving back and forth so that the move mode of each paw be close to each other towards base tube center or away from, thus unclamp or press from both sides
Tightly it is positioned at the electric power cable in clamp hole.
The present embodiment gravity centre distribution is relatively reasonable, when on the overhead power line of high-altitude, is conducive to alleviating vibration;Separately
Outward, the present embodiment drives paw clamping electric power cable by flat thread portion, and by traditional bolt assembly clamping electric lines of force
Cable is compared, particularly excellent in anti-loosening effect, and the reliability of long-term work is effectively ensured.
(embodiment 2)
The present embodiment and embodiment 1 are essentially identical, and difference is: as shown in Fig. 9 and Figure 10, and base tube 1 is provided with and radially passes through
Wear the installation screw 15 of base tube wall body;This installation screw is fixed with a temperature sensing device 8.
Temperature sensing device 8 includes the metal shell 81 with storage tank 811 that metal material makes, is arranged on storage tank
In temperature sensor 82, the spring 83 for temperature sensor is crimped on storage tank diapire, the spiral shell that is used for limit spring
Pipe plug 84.
Metal shell is provided with as puncturing the heat conduction boss 813 used, metal-back close to one end 812 of core tube hub axis
Body is provided with interior hexagonal away from one end 814 of core tube hub axis and twists groove 815;The periphery wall of metal shell is provided with and installs spiral shell
The external screw thread 816 that hole is adaptive, the internal perisporium of storage tank is provided with internal threaded regions 817;Heat conduction boss is close to core from metal shell
The sharp tooth boss formed is protruded in one end 812 of tube hub axis.
Temperature sensor includes using the heat-conducting block 821 that heat conductive insulating elastomeric material is made, the U-shaped being arranged in heat-conducting block
Thermo-sensitive resistor 822, two be arranged on heat-conducting block connect electric mortiser post 823;Heat-conducting block can be reciprocal in the storage tank of metal shell
Slide;Heat-conducting block is connected on the diapire of storage tank close to one end of core tube hub axis;Two connect electric mortiser post protrusion and are arranged on
On the heat-conducting block other end away from core tube hub axis;
Heat-conducting block encloses formation cannelure between external diameter and the internal perisporium of storage tank away from the other end of core tube hub axis
100, spring is positioned in this cannelure and is set on heat-conducting block one end away from core tube hub axis;
Screwed pipe plug is provided with external screw thread district 841 close to the periphery wall of one end of core tube hub axis, this external screw thread district and metal
The internal threaded regions 817 of housing is adaptive;Screwed pipe plug is provided with outer-hexagonal away from the periphery wall of one end of core tube hub axis and twists
Portion 842;The center of screwed pipe plug is provided with tube chamber 843;Screwed pipe plug is fixedly installed in cannelure by its external screw thread district;
Spring is connected on heat-conducting block close to one end of core tube hub axis, and spring abuts away from the other end of core tube hub axis
On screwed pipe plug;On heat-conducting block two connect electric mortiser post and are positioned in the tube chamber 843 of screwed pipe plug.
This structure has the following advantages, owing to metal shell is easily deformed when extruding cable, and extrusion temperature sensor
Heat-conducting block, if heat-conducting block does not has mobile space, then easily pressurized deformation damages;The present embodiment, can by arranging spring
Heat-conducting block is crimped on the diapire of metal shell storage tank so that it is can correctly predict cable and junction, pressing plate pressing plate portion
Real time temperature;Can also be when, after metal shell compressive deformation, reserving mobile space to heat-conducting block, thus prevent heat-conducting block by pressurized
Damage;This structure has preferably Practical Performance.
In concrete practice, multiple installation screw and temperature sensing device can be set on base tube, for each
Cable and the temperature with base tube junction monitor in real time, thus realize the further intellectuality that power network monitoring runs.
(embodiment 3)
The present embodiment and embodiment 2 are essentially identical, and difference is: as shown in Figure 11, the periphery wall of base tube in the present embodiment
Upper the most sheathed being fixed with current transformer 9, this current transformer 9 includes toroidal inductive body 91 and intelligent control module 92;Intelligence
The monnolithic case of energy control module is also annular;Toroidal inductive body 91 and intelligent control module 92 are arranged side by side.
When the quantity of the crimping boss in the present embodiment and paw all selects three, the present embodiment can form three folders
String holes, for three phase cables of clamping, now the present embodiment entirety can use as high pressure zero sequence current mutual inductor, is used for examining
Survey the existence of leakage current, to find leak current fault in time.
The internal perisporium of intelligent control module 92 is provided with inwardly projecting two and connects electric bushing (being not drawn on figure), respectively connects electricity
Socket inserts corresponding one and connects in electric bushing, so that temperature sensor is connected with the middle control circuit in intelligent control module.
Obviously, the above embodiment of the present invention is only for clearly demonstrating example of the present invention, and is not right
The restriction of embodiments of the present invention.For those of ordinary skill in the field, the most also may be used
To make other changes in different forms.Here without also cannot all of embodiment be given exhaustive.And these
Belong to obvious change that the connotation of the present invention extended out or variation still falls within protection scope of the present invention.
Claims (2)
1. an overhead transmission line power line clamp, it is characterised in that: include a base tube, core pipe, a set of paw assembly and
One plane nut;The internal perisporium of base tube is provided with crimping boss, and the tube wall of core pipe is provided with radially spacing slide opening, the inner circumferential of core pipe
Wall is provided with the annular gear platform of inwardly projecting formation;Paw assembly includes that multiple paw, each paw include pressing plate portion, from pressing plate portion
The guide runner portion of the inwardly projecting formation of inwall and the driving threaded portion that is arranged in guide runner portion;Each guide runner portion inserts
Entering on core pipe in a corresponding spacing slide opening of radial direction, in each tube chamber driving threaded portion to stretch to core pipe, each pressing plate portion is positioned at base
Between inside pipe wall and core tube wall;Each pressing plate portion and a corresponding crimping boss clamping form a clamp hole;Plane nut turns
Move and be arranged in core pipe tube chamber, and keep off between platform in the driving threaded portion of each paw and core pipe;Plane nut includes and each pressure
Pawl drives the flat thread portion of threaded portion engagement adaptation and is positioned at the fastening part of plane nut center;The periphery of plane nut
Wall and core inside pipe wall slide adjacent;Plane nut adjoins a side of gear platform and slides adjacent with gear platform;Plane nut is away from gear platform
Another side flat thread portion is set;Flat thread portion is annular, and flat thread portion is provided with archimedean spiral groove, respectively presses
The thread groove that driving threaded portion is provided with and this archimedean spiral groove is adaptive of claw assembly, each driving threaded portion is arranged on place
One side of guide runner portion adjacent flat nut;Base tube is provided with the installation screw extending radially through base tube wall body;This installation spiral shell
Hole is fixed with a temperature sensing device.
Overhead transmission line power line clamp the most according to claim 1, it is characterised in that: temperature sensing device is close in core pipe
One end of mandrel line is provided with as puncturing the heat conduction boss used.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610286317.5A CN105896115A (en) | 2016-05-02 | 2016-05-02 | Power line clamp for overhead line |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610286317.5A CN105896115A (en) | 2016-05-02 | 2016-05-02 | Power line clamp for overhead line |
Publications (1)
Publication Number | Publication Date |
---|---|
CN105896115A true CN105896115A (en) | 2016-08-24 |
Family
ID=56703234
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201610286317.5A Withdrawn CN105896115A (en) | 2016-05-02 | 2016-05-02 | Power line clamp for overhead line |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN105896115A (en) |
-
2016
- 2016-05-02 CN CN201610286317.5A patent/CN105896115A/en not_active Withdrawn
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Application publication date: 20160824 |