CN103646728A - Threading method for super length-diameter ratio cable - Google Patents
Threading method for super length-diameter ratio cable Download PDFInfo
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- CN103646728A CN103646728A CN201310674233.5A CN201310674233A CN103646728A CN 103646728 A CN103646728 A CN 103646728A CN 201310674233 A CN201310674233 A CN 201310674233A CN 103646728 A CN103646728 A CN 103646728A
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Abstract
The invention discloses a threading method for a super length-diameter ratio cable to solve a technical problem that the threading of a super length-diameter ratio cable is difficult to complete by using an existing cable threading method. The technical scheme is that a small opening is arranged in a radial direction at a port close part of a cable protection sleeve (c) close to a pressure air tube (a), a connection joint of the pressure air tube (a) and the cable protection sleeve (c) is installed, a wire (b) and a plug (d) are connected, then the wire (b) passes through the cable protection sleeve (c) from the small opening, a plurality of single-core cables are bound at one end of the wire (b), the other end of the wire (b) is pulled until the whole part of the single-core cable enters into the cable protection sleeve (c), and an air compressor output air value is started to start threading. According to the threading method, the threading of the super length-diameter ratio cable is realized, and the method is simple and easy.
Description
Technical field
The present invention relates to a kind of cable threading method, particularly a kind of threading method of super draw ratio cable.
Background technology
Meaning of super draw ratio, the length of cable and the ratio of end face diameter be greater than 100 or ratio level off to infinity; If the length that a is cable, the end face diameter that b is cable, unit is m; So just there are a/b >=100 or a/b ≈ ∞; Such as: diameter is 1mm, the cable that length is 100m, its draw ratio is 1000; So we are referred to as super draw ratio cable.
The cable abundant species using in daily industrial production, service condition is all different; According to some technical indicators such as the power line proportion of goods damageds of the load power of cable, cable, shielding, non-shielding, terminals progression, for the diameter of cable and single core, twin-core or multicore and wire rod, select; So country is for cable model and use type selecting to have clearly regulation.Cable manufacturer meets user's instructions for use according to the cable of national standard production standard model.Generally, according to user's basic demand, can find a kind of cable that meets or approach demand use; But in particular cases; Such as: the cable of six core aluminium matter single-core line footpath 1.0mm is just difficult to find on market.
If need the cable of six core aluminium matter single-core line footpath 1.0mm to customize with regard to finding producer; In the situation that consumption is large, in producer's price markup situation again, also likely go to doing; But consumption little Na producer has not just calculated.Because produce a kind of cable of model, need to there is a production line operation, change model cumbersome; So it is uneconomical that consumption is little.
The manufacture craft of the cable of manufacturer's standard model:
Stranding-squeeze rubber-cooling-crowded rubber-printing to wait technology mode to produce; Have that production efficiency is high, the colory advantage of cable; Being suitable for large batch of standard cable in batch produces; But production line investment is large, occupation area of equipment is large,, conversion inconvenience high for the nonstandard production cable replacing of small lot accessory cost; Being unsuitable for the nonstandard and special cables of small lot produces.
With reference to Fig. 2.Existing cable threading method is that single core diameter 1.0mm is intercepted into the six roots of sensation together through outer field gum sleeve b.Adopt the mode of iron wire a threading or direct threading; Because the resistance between iron wire a and gum sleeve b is large, be difficult to through gum sleeve b; For short cable, can complete, but take time and effort, the stranding that is only suitable for little draw ratio completes; Cable moulding for super draw ratio cannot realize.
Summary of the invention
The deficiency that has been difficult to super draw ratio cable threading in order to overcome existing cable threading method.The invention provides a kind of threading method of super draw ratio cable.The method is closed on part at cable protective sleeve c near pressure air pipe a port and is radially opened osculum, and setting pressure air hose a and cable protective sleeve c jointing, be connected line b with plug d, then line b is penetrated in cable protective sleeve c from osculum; By one end of the many online b of single-core cable colligation; Drag the other end of line b, until complete the entering in cable protective sleeve c of single-core cable opened air compressor machine output air valve and started threading.The present invention utilizes air pressure to realize the threading of super draw ratio cable, and method is simple.
The technical solution adopted for the present invention to solve the technical problems is: a kind of threading method of super draw ratio cable, is characterized in comprising the following steps:
Step 1, preparation single-core cable and cable protective sleeve c.At cable protective sleeve c, near pressure air pipe a port, close on part and radially open osculum; Openings of sizes can both be smoothly by being advisable with line b and plug d;
Step 2, setting pressure air hose a and cable protective sleeve c jointing; Dock completely with cable port the gas outlet of pressure air pipe a, and guarantee sealing;
Step 3, line b is connected with plug d, then line b is penetrated in cable protective sleeve c from osculum; By one end of the many online b of single-core cable colligation; Drag the other end of line b, until complete the entering in cable protective sleeve c of single-core cable.
Step 4, selection air displacement>=0.11m
3the air compressor machine of/min; Close output squeezing air door, open air compressor machine, air compressor machine inflation lifting air pressure is adjusted pressure to 0.45MP after arriving and stablizing;
Step 5, the stretching cable protective sleeve c that tries one's best, to guarantee that plug d passes through fast;
Step 6, unlatching air compressor machine output air valve start threading.
Wherein, air compressor machine pressure calculates according to the following formula:
Press=(F * V+P^ damages) х (1+15%～20%) of P^;
In formula, it is air compressor output pressure that P^ presses, unit: MPa; F is system motion resistance, unit: N; V is the movement velocity of plug, unit: m/s; P^ damage be air compressor output pressure except the pressure loss for doing work, unit: MPa;
The diameter of described plug and the monolateral gap of cable protective sleeve inwall are at 0.5～1.5mm.
Wherein, system friction adopts following formula to calculate:
F=f+mg=mц+mg=m（ц+g）；
In formula, f is the frictional force of plug and cable protective sleeve inwall, unit: N; ц is material friction coefficient; M is plug quality, unit: Kg;
The cylindric diameter of described plug d is less than cable protective sleeve c inwall 1～3mm, and the length of plug d is 5～10mm.
Described P^ damages as 15%～20% of air compressor machine output pressure.
The movement velocity V of described plug is 3～10m/s.
The invention has the beneficial effects as follows: the method is closed on part at cable protective sleeve c near pressure air pipe a port and radially opened osculum, setting pressure air hose a and cable protective sleeve c jointing, line b is connected with plug d, then line b is penetrated in cable protective sleeve c from osculum; By one end of the many online b of single-core cable colligation; Drag the other end of line b, until complete the entering in cable protective sleeve c of single-core cable opened air compressor machine output air valve and started threading.The present invention utilizes air pressure to realize the threading of super draw ratio cable, and method is simple.
Below in conjunction with the drawings and specific embodiments, the present invention is elaborated.
Accompanying drawing explanation
Fig. 1 is the threading method schematic diagram of the super draw ratio cable of the present invention.
In figure, a-pressure air pipe, b-line, c-cable protective sleeve, d-plug, e-blowing direction, f-outlet direction.
Fig. 2 is background technology cable threading method schematic diagram.
In figure, a-iron wire, b-gum sleeve.
Embodiment
With reference to Fig. 1.The threading method concrete steps of the super draw ratio cable of the present invention are as follows:
First, the single-core cable having intercepted and cable protective sleeve c are ready to.
Then, utilize air force to pass cable protective sleeve c the line b choosing.
Moreover, by one end of the two or several online b of single-core cable colligation; The other end drags line b until complete the entering in cable protective sleeve c of single-core cable.
Arrive this, cable has just completed.
The present invention utilizes air force that line b is passed to pressure air pipe a; Illustrate:
Selection meets the air generation plants (air compressor machine) of instructions for use; Air displacement>=0.11m
3/ min; Close output squeezing air door, open air compressor machine, air compressor machine inflation lifting air pressure is adjusted pressure to needed force value after arriving and stablizing; Recommendation is in 0.45MP left and right;
Cable protective sleeve c closes on part near pressure air pipe a port and radially opens osculum; Openings of sizes can both be smoothly by being advisable with line b and plug d; But can not be too large;
Line b is connected with plug d, then line b is penetrated in cable protective sleeve c from osculum;
Setting pressure air hose a and cable protective sleeve c jointing; Dock completely with cable port the gas outlet of pressure air pipe a, guarantees not leak as far as possible;
The stretching cable protective sleeve c that tries one's best, to guarantee that plug d passes through fast;
Open air compressor machine output air valve and start threading.
Advantage: the advantage of it and traditional iron wire threading be fast, convenient, low-cost.The resistance that has solved iron wire threading is large, the adverse effect of iron wire scratch gum sleeve.The thrust mode of original iron wire threading is directly changed into pulling force mode.
The invention provides select to be applicable to pressure compressed air:
The equipment that can select: air compressor, the selection of air compressor machine pressure is calculated as follows:
Press=(F * V+P^ damages) х (1+15%～20%) of P^;
P^ pressure-air compressor output pressure (unit: MPa);
F-system motion resistance (unit: N);
Movement velocity (the unit: m/s) of V-plug;
P^ damage-air compressor output pressure is except the pressure loss (unit: MPa) for doing work;
It is 15%～20% of air compressor machine output pressure based on experience value that note: P^ damages;
V selects (3～10m/s) according to actual needs;
The invention provides air drag plug:
Require plug diameter and the monolateral gap of cable protective sleeve inwall in 0.5～1.5mm(recommendation); Also can select according to on-site actual situations.0.5～1.5mm(recommendation) object is to reduce P^ to damage.
Computing system frictional force:
F=f+mg=mц+mg=m（ц+g）；
F-be the frictional force (unit: N) of plug and cable protective sleeve inwall;
ц-material friction coefficient;
M-plug quality (unit: Kg);
Plug profile and size: cylindric diameter is less than cable protective sleeve inwall 1～3mm, and length is advisable with 5～10mm, can select according to actual conditions; Require: plug is fine rule or the cable inner core that needs direct threading to become fixedly; As copper stud.
The invention provides air duct and cable protective sleeve jointing:
Can select air hose joint, concrete model is selected the pipe joint of appropriate size diameter and model according to actual cable diameter.
Claims (5)
1. a threading method for super draw ratio cable, is characterized in that comprising the following steps:
Step 1, preparation single-core cable and cable protective sleeve (c); At cable protective sleeve (c), near pressure air pipe (a) port, close on part and radially open osculum; Openings of sizes can both be smoothly by being advisable with line (b) and plug (d);
Step 2, setting pressure air hose (a) and cable protective sleeve (c) jointing; Dock completely with cable port the gas outlet of pressure air pipe (a), and guarantee sealing;
Step 3, line (b) is connected with plug (d), then line (b) is penetrated in cable protective sleeve (c) from osculum; By one end of many single-core cable colligations online (b); Drag the other end of line (b), until complete the entering in cable protective sleeve (c) of single-core cable;
Step 4, selection air displacement>=0.11m
3the air compressor machine of/min; Close output squeezing air door, open air compressor machine, air compressor machine inflation lifting air pressure is adjusted pressure to 0.45MPa after arriving and stablizing;
Step 5, the stretching cable protective sleeve (c) of trying one's best, to guarantee that plug (d) passes through fast;
Step 6, unlatching air compressor machine output air valve start threading;
Wherein, air compressor machine pressure calculates according to the following formula:
Press=(F * V+P^ damages) х (1+15%～20%) of P^;
In formula, it is air compressor output pressure that P^ presses, unit: MPa; F is system motion resistance, unit: N; V is the movement velocity of plug, unit: m/s; P^ damage be air compressor output pressure except the pressure loss for doing work, unit: MPa;
Wherein, system friction adopts following formula to calculate:
F=f+mg=mц+mg=m（ц+g）；
In formula, f is the frictional force of plug and cable protective sleeve inwall, unit: N; ц is material friction coefficient; M is plug quality, unit: Kg.
2. the threading method of super draw ratio cable according to claim 1, is characterized in that: the diameter of described plug (d) and the monolateral gap of cable protective sleeve (c) inwall are at 0.5～1.5mm.
3. the threading method of super draw ratio cable according to claim 1, is characterized in that: the cylindric diameter of described plug (d) is less than cable protective sleeve (c) inwall 1～3mm, and the length of plug (d) is 5～10mm.
4. the threading method of super draw ratio cable according to claim 1, is characterized in that: described P^ damages as 15%～20% of air compressor machine output pressure.
5. the threading method of super draw ratio cable according to claim 1, is characterized in that: the movement velocity V of described plug (d) is 3～10m/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310674233.5A CN103646728A (en) | 2013-12-11 | 2013-12-11 | Threading method for super length-diameter ratio cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310674233.5A CN103646728A (en) | 2013-12-11 | 2013-12-11 | Threading method for super length-diameter ratio cable |
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| Publication Number | Publication Date |
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| CN103646728A true CN103646728A (en) | 2014-03-19 |
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| CN201310674233.5A Pending CN103646728A (en) | 2013-12-11 | 2013-12-11 | Threading method for super length-diameter ratio cable |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104464978A (en) * | 2014-11-26 | 2015-03-25 | 登封电厂集团铝合金有限公司 | Water-cooling cable rubber hose sleever used for intermediate frequency furnace |
| CN112908573A (en) * | 2021-03-03 | 2021-06-04 | 常熟市景弘盛通信科技股份有限公司 | Cable shielding material directly wraps tool |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU1581783A (en) * | 1982-07-16 | 1984-01-19 | Stuart-Kleer Kube Pty. Ltd. | Tubing |
| EP0785387A1 (en) * | 1995-12-21 | 1997-07-23 | Koninklijke KPN N.V. | Method for installing a tube or a bundle of tubes in an existing tubular duct |
| CN101599622A (en) * | 2008-12-03 | 2009-12-09 | 中国第二冶金建设有限责任公司 | A kind of method of threading in pipe |
| CN102208779A (en) * | 2011-02-11 | 2011-10-05 | 杨鸿杰 | Method for rapidly inserting cable into sleeve |
-
2013
- 2013-12-11 CN CN201310674233.5A patent/CN103646728A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU1581783A (en) * | 1982-07-16 | 1984-01-19 | Stuart-Kleer Kube Pty. Ltd. | Tubing |
| EP0785387A1 (en) * | 1995-12-21 | 1997-07-23 | Koninklijke KPN N.V. | Method for installing a tube or a bundle of tubes in an existing tubular duct |
| CN101599622A (en) * | 2008-12-03 | 2009-12-09 | 中国第二冶金建设有限责任公司 | A kind of method of threading in pipe |
| CN102208779A (en) * | 2011-02-11 | 2011-10-05 | 杨鸿杰 | Method for rapidly inserting cable into sleeve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104464978A (en) * | 2014-11-26 | 2015-03-25 | 登封电厂集团铝合金有限公司 | Water-cooling cable rubber hose sleever used for intermediate frequency furnace |
| CN112908573A (en) * | 2021-03-03 | 2021-06-04 | 常熟市景弘盛通信科技股份有限公司 | Cable shielding material directly wraps tool |
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Application publication date: 20140319 |