CN106329388B - A method of it reducing large-section lead strain clamp and crimps disqualification rate - Google Patents
A method of it reducing large-section lead strain clamp and crimps disqualification rate Download PDFInfo
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- CN106329388B CN106329388B CN201610888450.8A CN201610888450A CN106329388B CN 106329388 B CN106329388 B CN 106329388B CN 201610888450 A CN201610888450 A CN 201610888450A CN 106329388 B CN106329388 B CN 106329388B
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000002788 crimping Methods 0.000 claims abstract description 69
- 238000010276 construction Methods 0.000 claims abstract description 27
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 12
- 239000010959 steel Substances 0.000 claims abstract description 12
- 238000002360 preparation method Methods 0.000 claims abstract description 7
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- 238000005096 rolling process Methods 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 4
- 230000009467 reduction Effects 0.000 abstract description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 7
- 229910052782 aluminium Inorganic materials 0.000 description 7
- 239000004411 aluminium Substances 0.000 description 4
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- 230000005540 biological transmission Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 229910000754 Wrought iron Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010835 comparative analysis Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
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- 238000009434 installation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
Landscapes
- Suspension Of Electric Lines Or Cables (AREA)
- Manufacturing Of Electrical Connectors (AREA)
Abstract
The present invention relates to a kind of method of reduction large-section lead strain clamp crimping disqualification rate, steps are as follows: (1) wire clamp prepares；(2) conducting wire is offline；(3) wire clamp cleans；(4) conducting wire poling；(5) steel core crimps；(6) wire clamp crimps；(7) DATA REASONING, step (1) wire clamp preparation process wire clamp subscript carve crimping mark；After the step (4) conducting wire poling with step before (5) steel core crimps production wire clamp crimp positioning mark pole, fix more wire clamp positioning mark poles uniformly at intervals in the placement location of conducting wire, the height of the more wire clamp positioning mark poles is identical.The present invention preparatory marking on wire clamp crimps mark, accurately controlling for distance when construction personnel's hump lead cramping connects is effectively ensured, construction method is simple, is convenient for site operation personnel operation, and the construction period is unaffected.After improving, construction quality disqualification rate caused by distance controlling difference causes the distance of adjacent two intermode to differ larger when hump lead is clamped and connect because of construction personnel is reduced, while improving construction efficiency.
Description
Technical field
The invention belongs to substation's construction field, especially a kind of reduction large-section lead strain clamp crimping does not conform to
The method of lattice rate.
Background technique
It is frequently necessary to crimp strain clamp in electrical installation, guarantees that the crimping qualification rate of strain clamp is
Guarantee the important topic of integral construction progress.Current construction process are as follows: wire clamp preparation → conducting wire is offline, and → wire clamp cleans → leads
Line poling → steel core crimping → wire clamp crimping → DATA REASONING.According to " State Grid Corporation of China's project of transmitting and converting electricity standard technology " 2012
Year version crimps qualified main standard about wire clamp are as follows: 1) aluminum tube bending degree is less than 2%.2) conducting wire is without stranded, broken lot phenomenon.3)
Adjacent two intermodes overlapping is not less than 5mm.4) no more than 0.866D+0.2mm, (D is outside wire clamp to hexagon opposite side size after crimping
Diameter).
Undesirable strain clamp is adjusted in the case where adjustable；It is then regarded if there is conducting wire pine bone
To scrap.Due to the higher cost of large-section lead, and crimp that difficulty is higher than general conducting wire, if unqualified after crimping
Rate is high, engineering cost can be made to increase first, secondly so that progress is delayed because adjusting or remaking.
By investigation and analysis, causing wire clamp to crimp underproof principal element has following two points:
1) compression bonding method is not proper: the sequence of crimping process meets construction requirement with number is crimped, but because construction personnel pushes away
Line sending, which clamps distance controlling difference when connecing, causes the distance of adjacent two intermode to differ larger, worst error 40mm
2) steel-cored aluminium levelness is inadequate: own wt influences during big sectional area conductor compression jointing, and setting is easily applied
Work measure is not able to satisfy the requirement for horizontality of strain clamp crimping process, leads to crimp aluminum tube bending degree greater than 2%, while also going out
Existing broken lot phenomenon, makes disqualification rate 10%.
Following published patent document is found by retrieval:
A kind of tension-resistance cleat for transmission line crimp quality detection method (CN103487450A), for power line tension line
Cramping connects quality problems, is positioned and is carried out to the crimping of steel-cored aluminium strand and strain clamp using digitlization Radiography Inspection technology
Inside detection, clearly shows that the structure after crimping inside strain clamp, especially inner lead aluminium stock, steel core, wire clamp aluminum casing
With the relative position of wire clamp rod iron, comparison crimping technological standards require to find that the inside as caused by compression joint technique is bad lacks
It falls into.Method of the invention is lossless detection method, can carry out wire clamp internal structure and each spots localization without destroying wire clamp
Check solve the problems, such as that transmission line of electricity crimps construction quality supervisory detection.
By comparative analysis, compared with prior art, there are biggish differences for the technical solution of present patent application.
Summary of the invention
It is an object of the invention to provide a kind of reduction large-section lead strain clamp in place of overcome the deficiencies in the prior art
The method for crimping disqualification rate.
The present invention solves its technical problem and adopts the following technical solutions to achieve:
A method of it reducing large-section lead strain clamp and crimps disqualification rate, step are as follows: (1) wire clamp prepares；(2) conducting wire
It is offline；(3) wire clamp cleans；(4) conducting wire poling；(5) steel core crimps；(6) wire clamp crimps；(7) DATA REASONING, it is characterised in that:
In step (1) wire clamp preparation process, increase following steps: carving crimping mark in wire clamp subscript；According to as defined in crimping
Normal width size remembers crimping mark in wire clamp subscript, and the quantity for crimping mark is identical as crimping number, the interval between mark
Uniformly, svelteness；
Increase following steps before (5) steel core crimps with step after the step (4) conducting wire poling: production wire clamp crimping positions
Mark post fixes more wire clamp crimping positioning mark poles in the placement location of conducting wire uniformly at intervals, equal at the placement location interval of conducting wire
The fixed more wire clamps of cloth crimp positioning mark pole, and every mark post is corresponding together, and the height of the more wire clamp crimping positioning mark poles is identical,
Wire clamp positioning is placed on processing apparatus；
In the crimping of step (6) wire clamp, crimping apparatus feeds the operating critical point that starting point is crimped as preparation, and wire clamp is past
Be pushed forward into together, be crimping first time, and so on crimped after complete all crimping work；
Online cramping connects positioning mark pole upper end and is mounted on dedicated pulley rolling bracket fixture and conducting wire.
Moreover, the crimping mark is 5, the wire clamp crimping positioning mark pole is 5, the crimping mark spacing on wire clamp
It is identical as the wire clamp crimping spacing of positioning mark pole, wire clamp crimping positioning mark pole is corresponded to as a period of motion to crimp mark, is held
The construction of 1 set of strain clamp is completed after row 5 times.
The advantages and positive effects of the present invention are:
The present invention preparatory marking on wire clamp crimps mark, is effectively ensured when construction personnel's hump lead cramping connects for distance
Accurately control, construction method is simple, is convenient for site operation personnel operation, the construction period is unaffected.After improving, lower
Because construction personnel when hump lead is clamped and is connect distance controlling difference cause adjacent two intermode distance differ larger caused by
Construction quality disqualification rate, while improving construction efficiency.
Detailed description of the invention
Fig. 1 is the installation schematic diagram of mark post；
Fig. 2 is the main view of pulley rolling bracket；
Fig. 3 is the right view of Fig. 2；
Fig. 4 is the top view of Fig. 3.
Specific embodiment
The invention will be further described for specific embodiment below, and it is not limited that following embodiment, which is descriptive,
, this does not limit the scope of protection of the present invention.
A method of it reducing large-section lead strain clamp and crimps disqualification rate, step are as follows: under wire clamp preparation → conducting wire
Line → wire clamp cleaning → conducting wire poling → steel core crimping → wire clamp crimping → DATA REASONING, the innovative point of this method are:
(1), in wire clamp preparation process, following steps are increased:
Crimping mark is carved in wire clamp subscript；According to defined normal width size is crimped, crimping mark is remembered in wire clamp subscript,
The quantity for crimping mark is identical as crimping number, and the interval between mark is uniform, svelteness；
The wire clamp length of the present embodiment is 760mm, and it is 100mm that punching block G32, which crimps width, meets crimping 5 times conditions, choosing
Crimping mark is marked with the oil pen for being not easy to rub off, is effectively ensured when construction personnel's hump lead cramping connects for distance
It accurately controls.
Compliance test result:
It is measured using 20 groups of strain clamps are chosen after the method progress construction operation, data statistics is as follows:
| Quantity | Adjacent intermode overlap distance mm | Quantity | Adjacent intermode overlap distance mm |
| 1 | 10；10；12；10 | 11 | 9；10；12；14 |
| 2 | 8；10；10；10 | 12 | 15；18；20；22 |
| 3 | 6；8；10；12 | 13 | 13；15；10；10 |
| 4 | 10；12；10；12 | 14 | 6；8；10；12 |
| 5 | 20；20；25；18 | 15 | 10；12；10；12 |
| 6 | 16；20；24；20 | 16 | 20；18；10；12 |
| 7 | 10；20；16；18 | 17 | 10；12；16；10 |
| 8 | 20；18；16；20 | 18 | 10；15；16；14 |
| 9 | 16；18；20；14 | 19 | 8；10；16；12 |
| 10 | 19；22；20；28 | 20 | 16；18；20；22 |
Be not difficult to find out by upper table, through improvement after, reduce because construction personnel hump lead cramping connect when distance controlling
Difference cause the distance of adjacent two intermode differ larger caused by construction quality disqualification rate, while improving construction efficiency.
(2) following steps are increased before crimping after conducting wire poling with steel core:
It makes wire clamp and crimps positioning mark pole, fix more wire clamp crimping positioning marks uniformly at intervals in the placement location of conducting wire 1
The height of bar 2, the more wire clamp crimping positioning mark poles is identical, and horizontally-supported wire clamp is effectively ensured, and the present embodiment middle line cramping connects
The quantity of positioning mark pole is 5, and every wire clamp crimping positioning mark pole is corresponding together, and wire clamp positioning is placed on processing apparatus；
Crimping apparatus 4 feeds starting point 6 as the operating critical point for preparing crimping
The first time of crimping, and so on carry out crimping 5 times after pass through punching block center line 5 complete all crimp work；
The present embodiment makes mark post spacing 100mm, the round steel production wire clamp crimping positioning mark of diameter 16 by in-site measurement
Bar, four sides of wire clamp crimping positioning mark pole are provided with to be fixed using the support frame progress position of 40 angle steel production；
Crimping mark spacing on wire clamp is identical as the spacing of mark post, with crimp mark correspond to wire clamp crimping positioning mark pole be
One period of motion can complete the construction of 1 set of strain clamp after executing 5 times.
In order to further enhance steel-cored aluminium levelness in construction, it is online clamp connect positioning mark pole upper end be mounted on it is dedicated
3 fixture of pulley rolling bracket and conducting wire, be effectively ensured processing push during levelness.
It referring to shown in attached drawing 2 to 4, is described for ease of description with the direction of attached drawing 4, pulley rolling bracket includes bottom
It is horizontal longitudinal to be symmetrically fixed with one at the horizontal cross both ends of pedestal for seat 35, longitudinal bracing pipe 31, wheel shaft 33 and pulley 32
The support tube middle part of support tube 31, the two sides is symmetrically fixed with a bearing block；The water between two side shaft holders above pedestal
Flat to be horizontally installed with a pulley, the axial ends center of pulley is symmetrically fixed with a wheel shaft, and wheel shaft shaft is rotatably installed in axis
It holds in the mounting hole of seat and is freely rotated.Pulley is nylon material, is formed with arc-shaped concave in the middle part of pulley, is convenient for limited support outer wall
Columnar wire clamp.
In order to guarantee support strength, a connecting rod 34 is connected between the longitudinal bracing pipe of longitudinal two sides of pulley, it should
Connecting rod is half arcuate structure to arch upward upwards, and the highest point of connecting rod is lower than the minimum point of pulley center, enhances support strength, not shadow
Ring sliding flexibility ratio.
Although disclosing the embodiment of the present invention for the purpose of illustration, it will be appreciated by those skilled in the art that: not
Be detached from the spirit and scope of the present invention, various substitutions, changes and modifications be all it is possible, therefore, the scope of the present invention not office
It is limited to embodiment disclosure of that.
Claims (2)
1. a kind of method for reducing large-section lead strain clamp crimping disqualification rate, step are as follows: (1) wire clamp prepares；(2) under conducting wire
Line；(3) wire clamp cleans；(4) conducting wire poling；(5) steel core crimps；(6) wire clamp crimps；(7) DATA REASONING, it is characterised in that:
In step (1) wire clamp preparation process, increase following steps: carving crimping mark in wire clamp subscript；According to standard as defined in crimping
Width dimensions remember crimping mark in wire clamp subscript, and the quantity for crimping mark is identical as crimping number, and the interval between mark is equal
It is even, svelteness；
Increase following steps before (5) steel core crimps with step after the step (4) conducting wire poling: production wire clamp crimping positioning mark
Bar fixes more wire clamp crimping positioning mark poles in the placement location of conducting wire, the crimping mark spacing and line on wire clamp uniformly at intervals
The spacing that cramping connects positioning mark pole is identical；Every wire clamp crimping positioning mark pole is corresponding together, which crimps positioning mark pole
Height it is identical, by wire clamp positioning be placed on processing apparatus；
In the crimping of step (6) wire clamp, crimping apparatus feeds starting point as the operating critical point for preparing crimping, by wire clamp toward being pushed forward
Into together, be crimping first time, and so on crimped after complete all crimping work；
Online cramping connects positioning mark pole upper end and is mounted on dedicated pulley rolling bracket fixture and conducting wire.
2. the method according to claim 1 for reducing large-section lead strain clamp crimping disqualification rate, it is characterised in that:
The crimping mark is 5, and wire clamp crimping positioning mark pole is 5, correspond to wire clamp to crimp mark and crimps positioning mark pole and is
One period of motion completes the construction of 1 set of strain clamp after executing 5 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610888450.8A CN106329388B (en) | 2016-10-11 | 2016-10-11 | A method of it reducing large-section lead strain clamp and crimps disqualification rate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610888450.8A CN106329388B (en) | 2016-10-11 | 2016-10-11 | A method of it reducing large-section lead strain clamp and crimps disqualification rate |
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| Publication Number | Publication Date |
|---|---|
| CN106329388A CN106329388A (en) | 2017-01-11 |
| CN106329388B true CN106329388B (en) | 2018-12-18 |
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| CN201610888450.8A Active CN106329388B (en) | 2016-10-11 | 2016-10-11 | A method of it reducing large-section lead strain clamp and crimps disqualification rate |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115984356B (en) * | 2023-03-20 | 2023-06-30 | 广东电网有限责任公司江门供电局 | Image-based wire crimping spacing measurement method and system |
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| JP5304001B2 (en) * | 2007-11-08 | 2013-10-02 | 住友電装株式会社 | Electric wire water stopping method and electric wire having a water stopping portion formed by the water stopping method |
| CN103606857A (en) * | 2013-12-01 | 2014-02-26 | 国网河南省电力公司安阳供电公司 | Hydraulic compression joint technique for large-section transmission lines |
| CN104300339A (en) * | 2014-10-29 | 2015-01-21 | 国家电网公司 | Strain clamp crimping device and crimping process |
| CN104617516A (en) * | 2015-01-30 | 2015-05-13 | 国家电网公司 | Construction process for reversely pressing strain clamp of carbon fiber conductor |
| CN105490130A (en) * | 2015-11-25 | 2016-04-13 | 国网辽宁省电力有限公司锦州供电公司 | Hydraulic crimping technology forstrain clamp for steel-cored aluminum stranded wire |
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