CN112054468A - Device for recovering mechanical property of wire insulating layer - Google Patents
Device for recovering mechanical property of wire insulating layer Download PDFInfo
- Publication number
- CN112054468A CN112054468A CN202011017705.6A CN202011017705A CN112054468A CN 112054468 A CN112054468 A CN 112054468A CN 202011017705 A CN202011017705 A CN 202011017705A CN 112054468 A CN112054468 A CN 112054468A
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- Prior art keywords
- wire
- fixed terminal
- slip
- restoring
- insulating layer
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- 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
- H02G7/18—Devices affording mechanical protection in the event of breakage of a line or cable, e.g. net for catching broken lines
-
- 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
- H02G7/05—Suspension arrangements or devices for electric cables or lines
Abstract
The application provides a device for restoring the mechanical property of the insulation layer of a wire, which comprises a fixed terminal component, a connecting component and a force gauge, wherein the fixed terminal component is arranged at the boundary of the wire stripped of the insulation layer and extends outwards for a distance; the connecting part is connected with the fixed terminal assembly; the load cell is mounted on the attachment member. According to the wire stripping device, the external tension is resisted through the anti-skidding auxiliary parts and the friction force between the anti-skidding teeth and the wire insulating layer, so that the mechanical property of the wire section of the stripped insulating layer is recovered, the structure is simpler, the operation is more convenient, and the safety coefficient is higher; through the dynamometer arranged on the connecting part, the stress condition of the device can be monitored in real time, when the stress reaches a set threshold value, an alarm is given, a basis is provided for the working personnel of an operation and maintenance department, and the device is safer and more reliable.
Description
Technical Field
The application relates to the technical field of stripping type electricity testing grounding hanging rings, in particular to a device for recovering the mechanical property of a wire insulating layer.
Background
In the operation of joining in marriage net twine way, overhaul, occasions such as capital construction engineering, all need install earthing for work line on the circuit according to the requirement of work, because the whole air insulation of insulated wire, there is not naked wire part, and the operation of having a power failure then need install earthing for work line, place about 20 centimetres apart from the insulator on insulated wire has set up 1 and has tested electricity ground connection link, the inside sinle silk connection with insulated wire of this equipment, the outside has set up 1 metal ring, the daily operation in-process, can test and hang earthing for work line on this ring.
In the prior art, two kinds of electricity testing grounding suspension loops are provided: the first one is a stripping type electricity-testing grounding hanging ring, which needs to strip a section (about 10cm) of insulating layer when being installed, and then fixes a special-shaped parallel groove clamp on a wire core of an insulated wire, but the adoption of the installation method can cause the insulating layer of the wire to lose corresponding mechanical property, and under long-term operation, the wire core of the wire can bear huge pulling force, and the wire core of the wire is pulled longer and thinner, so that the electrical property of the wire core of the wire is seriously influenced, and the phenomena of wire burnout and insufficient safety distance between the wire and buildings, structures and the like easily occur. The second kind is that the electricity ground connection link is tested to puncture type, and this kind of electricity ground connection link need not to peel off the wire insulating layer, but installs the contact condition of the unable inspection puncture of in-process and wire sinle silk, if puncture and wire sinle silk contact failure, will seriously influence the earth resistance value of wire sinle silk to lead to installing the personal safety that can't effectively protect the operation personnel on this electricity ground connection link. Therefore, the current electricity testing grounding suspension loops have serious defects.
Disclosure of Invention
The application provides a device for resuming wire insulating layer mechanical properties to adopt among the solution prior art to peel off the formula and test that electric ground connection link can cause wire insulating layer mechanical properties to lose, the problem of potential safety hazard appears easily.
The present application provides an apparatus for restoring the mechanical properties of a wire insulation layer, the apparatus comprising:
a fixed terminal assembly disposed at a boundary of the wire from which the insulation layer is stripped and extending outward by a distance;
a connection member connected with the fixed terminal assembly;
a load cell mounted on the attachment member.
In the technical scheme, when the wire core of the stripped insulating layer is pulled, certain friction force can be generated between the combination of the two fixing terminal assemblies connected through the connecting part and the surface of the insulating layer of the wire, the wire core and the wire resist external pulling force together, as long as the external pulling force is within the stress design range of the insulating wire, the accident that the wire is elongated or broken can not occur, wherein the anti-slip teeth can increase the friction force between the anti-slip auxiliary part and the wire, and therefore the requirement of the design stress of the wire is met.
In a preferred embodiment of the present application, the fixed terminal assembly includes anti-slip teeth disposed on an inner side of the anti-slip auxiliary, an anti-slip auxiliary disposed on an inner side of the fixed terminal, and a fixed terminal.
In a preferred embodiment of the present application, the anti-slip tooth and the anti-slip accessory are of a unitary construction.
In the preferred embodiment of the present application, the anti-slip teeth and the anti-slip auxiliary are made of a material with high hardness and a high friction coefficient with the wire.
In a preferred embodiment of the present application, the size of the non-slip auxiliary is determined according to the type of the wire.
Adopt above-mentioned technical scheme, can change the size of the inboard anti-skidding tooth of fixed terminal subassembly and anti-skidding auxiliary according to the wire model of difference, thickness promptly, and the size of the fixed terminal in the fixed terminal subassembly outside is unchangeable all the time to make the fixed terminal subassembly laminate the wire more, satisfy the operation requirement of various size wires, resist the external pulling force through the frictional force between wire and the fixed terminal subassembly, resume the mechanical properties of the wire section of being peeled off the insulating layer.
In the preferred embodiment of the present application, the fixing terminal assembly is fixedly mounted at the boundary of the wire stripped of the insulation layer and extended outwardly by 5cm by means of a bolt.
Among the above-mentioned technical scheme, use the bolt to fix, it is more convenient to operate to can not exert an influence to the various performance of wire.
In a preferred embodiment of the present application, the wire includes a wire insulation layer and a wire core, the wire core is disposed inside the wire insulation layer, and the wire insulation layer is attached to the inner side of the fixed terminal assembly, i.e., attached to the anti-slip teeth.
Compared with the prior art, the device for recovering the mechanical property of the insulating layer of the wire has the following beneficial effects:
(1) this application is through the combination of two fixed terminal subassembly of wire border department and the outside 5cm punishment of extending of being peeled off the insulating layer do not install, can be according to the model of wire, change the thickness of anti-skidding auxiliary in the fixed terminal subassembly, thereby make the antiskid tooth can laminate with the wire insulating layer always, satisfy the operation requirement of various size wires, the pulling force is resisted through the frictional force between anti-skidding auxiliary and antiskid tooth and the wire insulating layer, thereby resume the mechanical properties of the wire section of being peeled off the insulating layer, the structure is simpler, it is more convenient to operate, safety factor is higher.
(2) This application is connected the combination of two fixed terminal subassembly of the wire section both sides of being peeled off the insulating layer through adapting unit, when the wire sinle silk of being peeled off the insulating layer receives tensile force, certain frictional force will be produced in the combination of two fixed terminal subassembly, resist external tension together with the wire sinle silk, as long as external tension is in the stress range of this wire, all can not take place the trouble that the wire elongates or the broken string, can resume the certain mechanical properties of the wire section of being peeled off the insulating layer, safety and reliability are higher, the life of the wire section of being peeled off the insulating layer has been improved to a certain extent, and the cost is reduced.
(3) According to the stress monitoring device, the dynamometer is arranged on the connecting part, so that the stress condition of the device can be monitored in real time, when the stress reaches the set threshold value, an alarm is given, a basis is provided for the staff of the operation and maintenance department, and the stress monitoring device is safer and more reliable.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the positional arrangement of the stationary terminal assembly of the present application mounted to a conductor;
fig. 2 is a schematic diagram illustrating a disassembled structure of the fixing terminal assembly of the present application;
FIG. 3 is a schematic view of the attachment member and load cell mounting location of the present application;
FIG. 4 is a schematic view of the assembled mounting of two fixed terminal assemblies of the present application;
fig. 5 is a schematic cross-sectional view of a wire of the present application;
description of reference numerals:
wherein 100-fixed terminal component, 101-anti-slip tooth, 102-anti-slip accessory, 103-fixed terminal; 200-wire, 201-wire insulation, 202-wire core; 300-a connecting member; 400-force gauge; 500-bolt.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present application, it should be noted that the terms "upper", "inner", and the like refer to orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention conventionally use, which are merely for convenience of description and simplification of description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
To make the objects, embodiments and advantages of the present application clearer, the following description of exemplary embodiments of the present application will clearly and completely describe the exemplary embodiments of the present application with reference to the accompanying drawings in the exemplary embodiments of the present application, and it is to be understood that the described exemplary embodiments are only a part of the embodiments of the present application, and not all of the embodiments.
All other embodiments, which can be derived by a person skilled in the art from the exemplary embodiments described herein without inventive step, are intended to be within the scope of the claims appended hereto. In addition, while the disclosure herein has been presented in terms of one or more exemplary examples, it should be appreciated that aspects of the disclosure may be implemented solely as a complete embodiment.
It should be noted that the brief descriptions of the terms in the present application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of the present application. These terms should be understood in their ordinary and customary meaning unless otherwise indicated.
Furthermore, the terms "comprises," "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a product or apparatus that comprises a list of elements is not necessarily limited to those elements explicitly listed, but may include other elements not expressly listed or inherent to such product or apparatus.
Examples
Referring to fig. 1, a schematic view of the structure of the fixing terminal assembly of the present application mounted to a wire is shown.
As shown in fig. 1 and 3, the present application provides an apparatus for restoring mechanical properties of a wire insulation layer, the apparatus comprising:
a fixed terminal assembly 100 disposed at a boundary of the stripped wire 200 and extending outward by a distance;
a connection member 300, the connection member 300 being connected to the fixed terminal 103 assembly;
a load cell 400, the load cell 400 being mounted on the link 300 and being connected in series with the link 300.
In the above technical solution, when the wire core 202 of the insulation layer being stripped is subjected to a pulling force, a certain friction force is generated between the combination of the two fixed terminal assemblies 100 connected by the connecting member 300 and the insulation layer surface of the wire 200, and the wire core 202 together with the pulling force resists the external pulling force along the line direction, so as to achieve the purpose of recovering the mechanical performance of the wire insulation layer 201, as long as the external pulling force is within the stress design range of the insulation wire 200, the accident that the wire core 202 is elongated or broken does not occur, wherein the anti-slip teeth 101 can increase the friction force between the anti-slip auxiliary 102 and the wire 200, thereby satisfying the requirement of the design stress of the wire 200.
It should be further noted that the dynamometer 400 can monitor the stress condition of the device in real time, and send an alarm when the stress reaches a set threshold, where the threshold set by the dynamometer 400 is set according to the current model of the wire 200 and the stress magnitude corresponding to the current model, and is determined according to the actual situation.
As shown in fig. 2, the fixed terminal assembly 100 includes anti-slip teeth 101, an anti-slip accessory 102, and a fixed terminal 103, the anti-slip teeth 101 are disposed on the inner side of the anti-slip accessory 102, and the anti-slip accessory 102 is disposed on the inner side of the fixed terminal 103.
As shown in fig. 2, the anti-slip tooth 101 and the anti-slip auxiliary 102 are an integral structure, and in this embodiment, in order to better explain the structure of the fixing terminal assembly 100, the structure of the anti-slip tooth 101 is also separated.
In this embodiment, the anti-slip teeth 101 and the anti-slip auxiliary 102 are made of a material with high hardness and a high friction coefficient with the wire 200, and the specific type of the material is not limited in this application, such as insulating plastic, leather, and the like.
In the present embodiment, further, the size of the anti-slip auxiliary 102 is determined according to the model of the wire 200, and the thinner the wire 200 is, the thicker the anti-slip auxiliary 102 is.
By adopting the technical scheme, the sizes, namely the thicknesses, of the anti-skidding teeth 101 and the anti-skidding auxiliary parts 102 on the inner side of the fixed terminal assembly 100 can be changed according to different wire 200 models, and the size of the fixed terminal 103 on the outer side of the fixed terminal assembly 100 is always unchanged, so that the fixed terminal assembly 100 is more attached to the wire 200, the use requirements of the wires 200 with various sizes are met, the external pulling force is resisted through the friction force between the wire 200 and the fixed terminal assembly 100, and the mechanical performance of the wire section with the insulation layer stripped is recovered.
As shown in fig. 1, the fixing terminal assembly 100 is fixedly mounted at the boundary of the stripped conductor 200 and extends 5cm outward by bolts 500, it should be noted that, in the present embodiment, the stripped conductor 200, i.e. the conductor core 202, has a combination of fixing terminal assemblies 100 on both sides, each combination of fixing terminal assemblies 100 includes two left and right fixing terminal assemblies 100 as shown in fig. 4, and the two left and right fixing terminal assemblies 100 are respectively fixed by two upper and lower bolts 500, therefore, in the present embodiment, four fixing terminal assemblies 100 are fixed by eight bolts 500.
Among the above-mentioned technical scheme, use bolt 500 to fix, it is more convenient to operate to can not exert an influence to the various performance of wire 200.
As shown in fig. 5, the wire 200 includes a wire insulation layer 201 and a wire core 202, the wire core 202 is disposed inside the wire insulation layer 201, and as shown in fig. 4, the wire insulation layer 201 is attached to the inner side of the fixed terminal assembly 100, i.e., attached to the anti-slip tooth 101, so as to meet the use requirements of wires 200 with different sizes.
The embodiments provided in the present application are only the best examples under the general concept of the present application and do not constitute the limitation of the protection scope of the present application. Any other embodiments extended according to the scheme of the present application without inventive efforts will be within the scope of protection of the present application for a person skilled in the art.
Claims (7)
1. An apparatus for restoring mechanical properties to a wire insulation, the apparatus comprising:
a stationary terminal assembly (100), the stationary terminal assembly (100) disposed at a boundary of the stripped insulated conductor (200) and extending outwardly a distance;
a connection member (300), the connection member (300) being connected with the fixed terminal assembly (100);
a load cell (400), the load cell (400) being mounted on the attachment member (300).
2. The device for restoring the mechanical properties of wire insulation according to claim 1, characterized in that the fixed terminal assembly (100) comprises anti-slip teeth (101), an anti-slip accessory (102) and a fixed terminal (103), the anti-slip teeth (101) being arranged on the inside of the anti-slip accessory (102) and the anti-slip accessory (102) being arranged on the inside of the fixed terminal (103).
3. Device for restoring the mechanical properties of insulation of conductors according to claim 2, characterized in that said anti-slip teeth (101) and said anti-slip auxiliaries (102) are of a unitary structure.
4. A device for restoring the mechanical properties of an insulation layer of a conductor according to claim 2 or 3, characterized in that the anti-slip teeth (101) and the anti-slip auxiliaries (102) are made of a material with a high hardness and a high coefficient of friction with the conductor (200).
5. A device for restoring the mechanical properties of insulation of conductors, as claimed in claim 4, characterized in that said anti-slip accessory (102) is dimensioned according to the type of conductor (200).
6. The device for restoring the mechanical properties of a conductor insulation as claimed in claim 1, wherein the fixing terminal assembly (100) is fixedly mounted at the boundary of the stripped conductor (200) by a bolt (500) and extends outward 5 cm.
7. The device for restoring the mechanical properties of a wire insulation according to claim 1, wherein the wire (200) comprises a wire insulation (201) and a wire core (202), the wire core (202) is disposed inside the wire insulation (201), and the wire insulation (201) is attached to the inside of the fixed terminal assembly (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011017705.6A CN112054468B (en) | 2020-09-24 | 2020-09-24 | Device for recovering mechanical property of wire insulating layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011017705.6A CN112054468B (en) | 2020-09-24 | 2020-09-24 | Device for recovering mechanical property of wire insulating layer |
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| CN112054468A true CN112054468A (en) | 2020-12-08 |
| CN112054468B CN112054468B (en) | 2022-04-08 |
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|---|---|
| CN112054468B (en) | 2022-04-08 |
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