CN201348896Y - Wire connecting part of crosslinked cable in catenary continuous vulcanization - Google Patents
Wire connecting part of crosslinked cable in catenary continuous vulcanization Download PDFInfo
- Publication number
- CN201348896Y CN201348896Y CNU2008201864398U CN200820186439U CN201348896Y CN 201348896 Y CN201348896 Y CN 201348896Y CN U2008201864398 U CNU2008201864398 U CN U2008201864398U CN 200820186439 U CN200820186439 U CN 200820186439U CN 201348896 Y CN201348896 Y CN 201348896Y
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- wire
- continuous vulcanization
- lead
- crosslinked cable
- suspension type
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Abstract
The utility model relates to an intermittent wire connecting part of a crosslinked cable in catenary continuous vulcanization (CCV) production. The utility model is characterized in that a front splicing wire and a rear splicing wire are respectively provided with a compression sleeve; one end of the compression sleeve is mutually or respectively connected with a connecting sleeve or a connecting rod in a traction and rotatable mode; a connecting and superposition part is provided with a pin so that the two compression sleeves connected with the front wire and the rear wire not only can rotate respectively, but also can be fixed relatively, thus leading the front wire and the rear wire to rotate synchronously. The connecting part can realize continuous production of non-stop multi-disc wire splicing of crosslinked cable CCV, thus not only avoiding waste caused by a start-stop machine of each wire, but also greatly improving production efficiency and solving the difficulty that the production can not be continuous, which disturbs the crosslinked CCV production for long period.
Description
Technical field
Utility model relates to a kind of crosslinked cable catenary suspension type continuous vulcanization continuous vulcanization (CCV) and is interrupted wire connector in producing, and can guarantee that the crosslinked machine of CCV do not shut down continuous production, and the continued access that is specially adapted to ultra-high voltage cross-linking cable milliken conductor lead connects.
Background technology
Crosslinked (for example crosslinked polyetylene insulated) the catenary suspension type continuous vulcanization continuous vulcanization of cable (CCV) preparation needs start continuously, for example is generally about ten days.And wherein conductor can not be accomplished once to start shooting and use whole lead because of being subjected to the restriction of factors such as weight, sabot capacity, in continuous flow procedure, must carry out continued access between the lead to connect like this, could guarantee the continuous production of the crosslinked machine of CCV.Crosslinked is thermoplastic material with polyethylene, the sagging generation that causes easily insulating in continuous vulcanization is eccentric, ultra-high voltage cross-linking cable particularly, its insulation thickness is thicker, be easy to generate insulation eccentricity especially, therefore normal the employing makes the cable rotation mode in production practices, reduces the insulation gravity sag as far as possible and causes off-centre, guarantees that the insulation eccentricity degree is controlled at allowed band (for example≤5%).Rotation traction traction for effectively controlling the gravity sag that insulate, is taked the traction up and down of insulating exruded head front and back simultaneously, rotary speed (go up traction and rotate slowly, following traction is rotated fast) inequality design, and both have the speed discrepancy of 10-20% approximately.
Prior art two leads connect: modes such as gas welding welding, electric resistance welding welding, the crimping of pipe joint cover are arranged.A common feature of these connected modes: lead fixed (can not relatively rotate) before and after connecting like this in the production distraction procedure, owing to draw the rotary speed difference up and down, very easily causes the pine strand of stranded conductor, especially heavy in section (800mm for example
2-2500mm
2) crosslinked cable, lead often adopts milliken conductor structure (being generally 5 cuts apart or 7 cut apart), and the front and back lead fixed connects, and easilier causes the milliken conductor strand strand to produce last traction place pine misplacing.Lead pine strand can cause lead radially to become greatly, and occurring can't pass mould (being commonly called as snap gauge) easily must shut down, and waits to eliminate start production again again after the fault.
After the crosslinked production start of CCV, need treat that crosslinked core goes out to seal for example 165 meters of certain-lengths, just can add nitrogen, pipeline is heated, after pipe temperature and nitrogen pressure reach technological requirement, producing cable could be as finished product, and so each start all will be wasted for example start line about 250 meters of certain-length; Also need before the shutdown to continue to extrude, otherwise nitrogen can't seal, shutdown need be wasted for example 90 meters left and right sides cores of certain-length again like this, and the waste that makes each startup-shutdown cause is very big, wastes 340 meters left and right sides cables (rule of thumb different length are variant) approximately.For example to produce 1000mm
2-110KV is an example: 340 rice noodles cores wastes conductor 3022kg (60 yuan/kg), inner shield material 80kg (30 yuan/kg), Insulation Material 936kg (30 yuan/kg), (30 yuan/kg), waste 181320 yuan of copper, insulation altogether and shield 33810 yuan of external shield material 111kg.Though copper conductor can reuse, also need 2000 yuan of/ton processing charges, count 6044 yuan, insulation can't utilize again and can only scrap with shielding material.
Therefore the continued access of prior art lead fixed connects, and is difficult to satisfy CCV actual production requirement, heavy in section milliken conductor especially, and lead of every replacing must be driven, stop machine No. one time, and can not produce continuously, and not only waste greatly and influences production efficiency.
The utility model content
The utility model purpose is to overcome above-mentioned the deficiencies in the prior art, provide a kind of continued access lead not can the pine strand, can satisfy the crosslinked cable catenary suspension type continuous vulcanization continuous vulcanization wire connector of not shutting down continuous production requirement.
The utility model purpose realizes, the main improvement is the connector that makes continued access two leads, not rotatable by original fixed sleeving crimping, change into and can relatively rotate/or fixing articulation, connector two ends lead can be realized respectively or rotation (relative fixed) synchronously as required, both reach continued access and connected two leads, two leads rotate respectively or synchronously before and after making again, thereby not only effectively avoid drawing up and down the inconsistent lead pine thigh that causes of rotation, can not be by the defective of extruder head snap gauge shutdown, make and to realize not shutting down continuous production by this connector continued access, realize the utility model purpose; And on going out, after the traction, make the front and back lead be immobile phase to not being rotationally connected, and can avoid again drawing the rotary speed difference up and down, cause contingent core insulation to twist off.Specifically, utility model crosslinked cable catenary suspension type continuous vulcanization continuous vulcanization wire connector, comprise the clamping sleeve that connects wire termination, the continued access lead respectively has a clamping sleeve, an end of clamping sleeve before and after it is characterized in that, be to draw with a joint sleeve or connecting rod mutually or respectively and be rotatably connected, connecting coincidence part has insertable pin, makes two clamping sleeves of lead before and after connecting, each spinning relatively, again can relative fixed, lead rotates synchronously before and after making.
The clamping sleeve of the said connection lead of utility model, its crimping lead position and prior art are basic identical, can be sleeve structure, also can be mainly used in the tight lead of pawl for breach or with the tubular body of the claw type structure of a plurality of breach, realize that traction drags.
Traction is rotatably connected, and it acts on as described above, is under the traction connection status, and front and back connect lead both can each spinning, again can relative fixed after inserting pin, and lead rotates synchronously before and after making.Its version can have multiple, for example: be two clamping sleeves, one end embed mutually be the traction be rotatably connected; Or two adopt between clamping sleeve the traction of transition piece to be rotatably connected, and is traction with a joint sleeve respectively as an end and is rotatably connected, or be traction with a connecting rod respectively and be rotatably connected.They are all by connecting the insertable anti-rotation pin of coincidence part, lead relative fixed (not changeing) before and after making.The mutual embedding that is rotationally connected can embed by having gap, also can be the drawing head mode etc. that is threaded.Should be understood that for the technical field technical staff and can understand that other usual ways also can be used.
The plug-in type pin mainly plays restriction and relatively rotates effect, and it can be a pin radially, also can be the axial pin of similar key pin, limits each spinning that is rotationally connected after inserting coincidence part.Equally, the technical staff can understand other limit mode in relative rotation, can be used equally, just complicated slightly.
The connector radial dimension, fixedly connected identical with prior art, its maximum outside diameter≤wire diameter is to pass through extruder head smoothly.
Utility model crosslinked cable catenary suspension type continuous vulcanization continuous vulcanization wire connector; the front and back lead is rotationally connected by traction; in the crosslinked catenary suspension type continuous vulcanization continuous vulcanization of cable production process; both can be by having rotated the control of guaranteeing insulation eccentricity separately relatively; guarantee again lead after last traction not can the pine strand; connect lead before and after effectively having prevented and radially enlarge snap gauge because of the pine thigh that rotation speed difference causes; guarantee that the continued access lead can torsional deflection; can realize that the continued access of polydisc lead do not shut down continuous production; thereby not only saved the waste that startup-shutdown causes; and improved production efficiency greatly, be considerable as previously mentioned for this saving of large-scale production.In addition, after on connecting portion passes through, drawing again, lead fixed can not be rotated relatively before and after making, core rotates synchronously, in crosslinked pipeline, operate steadily, can avoid drawing up and down the rotary speed difference, may cause the deficiency that the core insulation is twisted off, satisfied the eccentric requirement of production Spin Control simultaneously, having solved can not a quantity-produced difficult problem in the crosslinked CCV production of long-term puzzlement.Lead rotated freely and relative fixed before and after wire connector can make respectively in traction, for this patent continued access joint is different from the maximum feature of prior art.The utility model wire connector not only can be used for common middle and high pressure crosslinked cable CCV and produce, and especially is specially adapted to superhigh pressure heavy in section milliken conductor crosslinked cable CCV production.
Below in conjunction with 3 specific embodiments; utility model is further understood in exemplary illustration and help; but the embodiment detail only is for utility model is described; do not represent utility model design whole technical schemes down; therefore should not be construed as the technical scheme qualification total to utility model, some do not depart from the unsubstantiality of utility model design and change In the view of the technical staff; for example change or replace, all truely use novel protected scope so that technical characterictic with same or similar technique effect is simple.
Description of drawings
Fig. 1 is the utility model first embodiment lead continued access connector structural representation.
Fig. 2 connects lead clamping sleeve structural representation for Fig. 1 connector.
Fig. 3 is Fig. 1 connector joint sleeve structural representation.
Fig. 4, Fig. 5, Fig. 6 are respectively Fig. 3 A-A, B-B, and C-C analyses and observe schematic cross-section.
Fig. 7 is a stop pin pin structure schematic diagram among Fig. 1.
Fig. 8 is the utility model second embodiment lead continued access connector structural representation.
Fig. 9 analyses and observe schematic cross-section for Fig. 8 D-D.
Figure 10 is utility model the 3rd an embodiment lead continued access connector structural representation.
Figure 11 analyses and observe schematic cross-section for Figure 10 E-E.
Embodiment
Embodiment 1: referring to Fig. 1-Fig. 7, utility model crosslinked cable catenary suspension type continuous vulcanization continuous vulcanization wire connector, comprise that two ends, the left and right sides are respectively applied for the clamping sleeve 1.1 and 1.2 that connects two leads, and 2 three middle of joint sleeves are composed in series the traction part (Fig. 1) that is rotatably connected.Wherein connect lead clamping sleeve 1.1,1.2 (Fig. 2), be not more than the hollow aluminium hydraulic pressed connecting pipe (abbreviation sleeve pipe) 5.1 of diameter of wire, thin neck 5.2 and diameter 5.3 3 sections integrative-structures of forming of embedding drawing head by external diameter greater than thin neck, hollow aluminium hydraulic pressed connecting pipe 5.1 inside pipe walls are processed with internal thread, can increase with lead frictional force and guarantee that crimping is solid and reliable, head 5.3 has radially for the through hole 5.4 that inserts stop pin, and inner portion has chamfering to be cambered surface 5.5 (convenient rotation is flexible).Intermediate connector 2 (Fig. 3), for external diameter is not more than the hollow tube that diameter of wire, two ends have reducing 2.1, different in width gap 2.3 (Fig. 4-6) is arranged on two ends reducing and the pipe shaft, and the reducing inboard has radial direction through hole 2.2 respectively, for inserting radial taper anti-rotation pin 3 (Fig. 7), anti-rotation pin pyramidal structure helps convenient insertion fast.CCV production is changed drum (is example with the Milliken conductor), need front and back lead 4.1 when 4.2 are connected, peel off earlier the skin (satisfy to insert and compress in the trepanning) of per share milliken conductor in the lead respectively, insert to compress in the clamping sleeve and form and the fixedlying connected of lead, with wire external layer conductor welding fixing (preventing snap gauge), the polishing welding position, repair external diameter and less than conductor diameter, with the belt portion that is intertwined and connected, two clamping sleeves are embedded the joint sleeve two ends respectively be the traction connection, the clamping sleeve of a lead wherein is connected coincidence part inserts pin 3.1 positioning and fixing (also can insert in the back) with joint sleeve, two leads can relatively rotate, joint to be connected by last traction after, insert another radially pin 3.2 immediately, lead can not relatively rotate before and after making, and this moment, the two ends lead rotated synchronously, made joint pass through mould smoothly.
Embodiment 2: referring to Fig. 8,9, as embodiment 1, wherein the continued access lead is circle silk concentric stranding lead.Intermediate connector is that two ends have the dumbbell structure connecting rod 6 that enlarges spherical head 6.1 and 6.2.The clamping sleeve that connects two leads, be not more than the integrative-structure that the hollow aluminium hydraulic pressed connecting pipe 1.1.1 of diameter of wire and 1.2.1 and the other end are made up of axial blind hole connecting portion 1.1.2 and 1.2.2 by external diameter, both ends are the shrinkage cavity structure, and the blind hole section has the gap 1.6.1 that can embed the dumbbell connecting rod.In blind hole section and dumbbell head radial direction through hole is arranged as described above, for inserting the anti-rotation pin.The CCV mode of production is substantially with embodiment 1, front and back lead 4.1.1 is connected with 4.2.1, peel off respectively one outer insert to compress in the clamping sleeve form and the fixedlying connected of lead, because lead is circle silk concentric stranding structure, can omit the fixing and polishing welding position operation of outer contact welding, after finishing being connected of clamping sleeve and lead, gap 1.6.1 is passed through at connecting rod two of dumbbell structure respectively, embedding clamping sleeve blind hole section formation traction is rotationally connected, after on jointing passes through, drawing, insert the anti-rotation pin at two coincidence parts respectively, make two leads be relative fixed and do not rotate.
Embodiment 3: referring to Figure 10,11, as described above, omit intermediate connector, two disconnected conductor wire end that connect lead clamping sleeve 1.1.3 and 1.2.4, the drawing head 1.1.7 that is half dumbbell structure is arranged respectively, with insert the blind hole section 1.2.3 of band reducing for traction, blind hole section and dumbbell head respectively have and radially insert pin via hole 1.1.8, the blind hole section has the gap 1.2.3 that can embed the dumbbell head.During use, the drawing head of a clamping sleeve embeds, and the blind hole section of another clamping sleeve band reducing promptly forms rotating traction and connects, and inserts pin and promptly is relative fixed.Production method is the same substantially.
To those skilled in the art; under utility model design enlightenment; some distortion that can directly derive or associate from this patent disclosure and general knowledge; or the substituting of known technology commonly used in the prior art; and the mutual various combination between feature; the clamping sleeve that for example connects lead; the decannulation structure is outer can also to adopt the band breach or with the claw type structure of a plurality of breach; the anti-rotation pin adopts the key pin that axially inserts; or other have and block other known manner that the portion of relatively rotating limits its rotation; and other understand simple substituting because of this; or the like unsubstantiality change; can both realize and basic identical function of the foregoing description and effect, launch for example no longer one by one to describe in detail, all belong to this patent protection range.
Be easy description, the said lead of utility model comprises lead and circle silk concentric stranding lead that milliken conductor is formed.Described connection and continued access are synonym.
Claims (6)
1, crosslinked cable catenary suspension type continuous vulcanization continuous vulcanization wire connector, comprise the clamping sleeve that connects wire termination, the continued access lead respectively has a clamping sleeve before and after it is characterized in that, one end of clamping sleeve mutually or respectively is traction with a joint sleeve or connecting rod and is rotatably connected, and connecting coincidence part has insertable pin, make two clamping sleeves of lead before and after connecting, each spinning relatively again can relative fixed, and lead rotates synchronously before and after making.
2,, it is characterized in that the aluminium hydraulic pressed connecting pipe inwall of clamping sleeve connection conductor wire end has internal thread according to the described crosslinked cable catenary suspension type continuous vulcanization of claim 1 continuous vulcanization wire connector.
3, according to claim 1 or 2 described crosslinked cable catenary suspension type continuous vulcanization continuous vulcanization wire connectors, it is characterized in that pin is tapered.
4, according to claim 1 or 2 described crosslinked cable catenary suspension type continuous vulcanization continuous vulcanization wire connectors, it is characterized in that being rotationally connected embeds by gap.
5, according to claim 1 or 2 described crosslinked cable catenary suspension type continuous vulcanization continuous vulcanization wire connectors, it is characterized in that rotating connector one end is half dumbbell structure drawing head, the other end is for inserting the blind hole section of band reducing for traction.
6, according to the described crosslinked cable catenary suspension type continuous vulcanization of claim 5 continuous vulcanization wire connector, it is characterized in that dumbbell head is spherical in shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201864398U CN201348896Y (en) | 2008-10-27 | 2008-10-27 | Wire connecting part of crosslinked cable in catenary continuous vulcanization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201864398U CN201348896Y (en) | 2008-10-27 | 2008-10-27 | Wire connecting part of crosslinked cable in catenary continuous vulcanization |
Publications (1)
| Publication Number | Publication Date |
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| CN201348896Y true CN201348896Y (en) | 2009-11-18 |
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ID=41368364
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201864398U Expired - Lifetime CN201348896Y (en) | 2008-10-27 | 2008-10-27 | Wire connecting part of crosslinked cable in catenary continuous vulcanization |
Country Status (1)
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| CN (1) | CN201348896Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101728032B (en) * | 2008-10-27 | 2012-11-14 | 远东电缆有限公司 | Conductor connector for catenary continuous vulcanization of cross-linked cables and catenary continuous vulcanization preparation method for cross-linked cables |
| CN103065725A (en) * | 2012-12-29 | 2013-04-24 | 常州船用电缆有限责任公司 | Traction joint and method preventing steam from entering rubber sleeve cable |
| CN103532073A (en) * | 2013-09-30 | 2014-01-22 | 国家电网公司 | Aluminum tube splicing fitting |
-
2008
- 2008-10-27 CN CNU2008201864398U patent/CN201348896Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101728032B (en) * | 2008-10-27 | 2012-11-14 | 远东电缆有限公司 | Conductor connector for catenary continuous vulcanization of cross-linked cables and catenary continuous vulcanization preparation method for cross-linked cables |
| CN103065725A (en) * | 2012-12-29 | 2013-04-24 | 常州船用电缆有限责任公司 | Traction joint and method preventing steam from entering rubber sleeve cable |
| CN103065725B (en) * | 2012-12-29 | 2015-09-02 | 常州船用电缆有限责任公司 | Tow attachment |
| CN105047315A (en) * | 2012-12-29 | 2015-11-11 | 常州船用电缆有限责任公司 | Method for preventing steam from entering into rubber cable |
| CN103532073A (en) * | 2013-09-30 | 2014-01-22 | 国家电网公司 | Aluminum tube splicing fitting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20091118 Effective date of abandoning: 20081027 |
|
| RGAV | Abandon patent right to avoid regrant |