CN104505762A - Outdoor terminal stress cone onsite pre-dilation device and stress cone separating device - Google Patents
Outdoor terminal stress cone onsite pre-dilation device and stress cone separating device Download PDFInfo
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- CN104505762A CN104505762A CN201410852356.8A CN201410852356A CN104505762A CN 104505762 A CN104505762 A CN 104505762A CN 201410852356 A CN201410852356 A CN 201410852356A CN 104505762 A CN104505762 A CN 104505762A
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- stress cone
- support tube
- cone
- dilation
- outdoor terminal
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Abstract
The invention provides an outdoor terminal stress cone onsite pre-dilation device; the outdoor terminal stress cone onsite pre-dilation device comprises an expansion rod and a dilation bracket; one side of the dilation bracket is provided with a dilation power device; the other side of the dilation bracket is provided with a hollow supporting barrel; the outer diameter of the supporting barrel is less than or equal to the inner diameter of a stress cone; the front end of the supporting barrel is provided with a detachable guiding cone; the guiding cone is arranged between the supporting barrel and the dilation bracket; the expansion rod is detachably connected with the supporting barrel and connected with the dilation power device after sequentially penetrating the supporting barrel, the guiding cone and the dilation bracket. The invention further provides an assorted stress cone separating device. The outdoor terminal stress cone onsite pre-dilation device achieves stress cone pre-dilation and installation at the installation site; the dilation procedure can be synchronously implemented with other procedures of the outdoor terminal; and the phenomenon that, the cycle is too long after dilating thermal contraction accessories and the stress retraction is not recovered in position, is avoided; and indentation caused by thermally contracting supporting strips does not exist.
Description
Technical field
The invention belongs to electric cable accessories technical field, relate to oil-filled cable outdoor terminal stress cone and install, particularly relating to the on-the-spot predilation device of a kind of oil-filling type outdoor terminal stress cone and stress cone separator, is the safeguard measure that electric cable accessories is installed safely.
Background technology
The installation of oil-filling type outdoor terminal stress cone is the important procedure that electric cable accessories is installed, and incorrect installation, can cause electric cable accessories global failure, causes annex to puncture, and is unusual committed step.Though producer's structure of domestic and international electric cable accessories is different, outdoor terminal stress cone installation method roughly has three kinds: one to be that the direct interference of stress cone is installed, and two is that inflated with nitrogen is installed; After three factory's predilations, on-the-spot shrinkage is installed.
The first mounting means, often there is accident in stress cone installation process, because resistance is excessive, the situation that stress cone does not put in place and cannot moves, the on-the-spot auxiliary instruments temporarily pieced together such as lever hoist that often adopt continue to install, so easy damaging stress cone, makes to install the bad or stress cone of effect and scraps.Some producer develops in-site installation frock, installation can be completed smoothly, but efficiency is not high, also may run into the impact of unpredictable factor at the scene simultaneously.
The second mounting means be relatively lighter, but scene does not often have the condition of nitrogen yet, or at tens meters of high tower platform lifting high-pressure nitrogen bottles, but there is potential safety hazard.Nitrogen blows in addition, easily makes the impurity such as on-the-spot dust enter stress cone and cable insulation interface, causes the potential safety hazard that cable runs.
The third mounting means, install more convenient, but, because delivery availability and set-up time do not have certainty, if the intermediate period cycle is longer, exceed the shrinkage support safety cycle (being generally 3 months), the recovery factor impact of counter stress cone is very large, and stress cone even may be caused to scrap.Rear stress cone interface installed by shrinkage annex in addition expendable impression, has fatal impact to electric property.In the electric cable accessories installation process of voltage levels, do not adopt this form generally abroad.
Summary of the invention
For solving prior art Problems existing, facilitating the installation of the outer terminal stress cone of cable, the invention provides the on-the-spot predilation device of a kind of outdoor terminal stress cone, easily stress cone being expanded, light and fast, be convenient to the installation of stress cone, improve installation effectiveness.
The on-the-spot predilation device of outdoor terminal stress cone provided by the present invention, it is characterized in that: comprise expansion link and expandable stent, the side of described expandable stent is provided with expansion power set; The opposite side of described expandable stent is provided with hollow support tube, and the external diameter of this support tube is less than or equal to the internal diameter of stress cone; The front end of described support tube is coaxially installed with dismountable guide cone, and this guide cone is between described support tube and expandable stent; Described stress cone is enclosed within support tube after guide cone guides; Described expansion link is removably connected with described support tube, and successively through after described support tube, guide cone, expandable stent, is connected with described expansion power set.The present invention utilizes expansion power set to pull expansion link, and drive support tube to move by expansion link, the guide cone of support tube front end enters in stress cone, pulls support tube further, and stress cone is expanded on support tube along guide cone.Because expansion link and support tube, support tube are all removably be connected with guide cone, when stress cone is expanded to after on support tube, guide cone, expansion link are pulled down, only stay support tube and guide cone to deposit in the lump, be convenient to the installation of stress cone.
Further, the rear end of described support tube is provided with dismountable conduction lining, and this conduction lining is removably connected with described expansion link.Conduction lining is arranged on support tube rear end, is convenient to the installation and removal of expansion link.
Further, described expandable stent comprises the fixed supported slab, the guide post that vertically arrange; Described expansion power is arranged on the right side of described fixed supported slab; The left parallel of described fixed supported slab is provided with mobile support plate, and one end of described guide post is connected with mobile support plate, and the other end is through described fixed supported slab; Described expansion link is successively through mobile support plate, fixed supported slab, and expansion power set drive expansion link, mobile support plate moves along guide post to described fixed supported slab direction; The left parallel of described traversing carriage is provided with stress cone fixed support.
Further, near the rear end of described support tube, the outer wall of described support tube is provided with flange.Arrange flange, be convenient to when stress cone is installed, separator blocks flange, is taken off by stress cone from support tube, is arranged in the insulation of cable.
Further, also comprise movable supporting frame, this movable supporting frame holds described support tube; Under the drive of expansion link, described movable supporting frame moves together with support tube.Roller can be installed in the lower end of movable supporting frame, convenient rolling.
Further, the external diameter of the internal diameter of described support tube and the cable of described outdoor terminal matches, and when stress cone is installed, support tube can be enclosed within cable outer wall easily.
Further, described expansion power set are hydraulic cylinder.
The present invention also provides a kind of stress cone separator, comprises supporting guide and leading screw; Described supporting guide is vertically placed, and the lower end of this supporting guide is horizontally installed with block board, and its upper end is horizontally installed with leading screw mounting panel; Described leading screw passes leading screw mounting panel and is connected with leading screw mounting panel; The upper end of described leading screw is provided with screw turns handle, and its lower end is connected with a horizontally disposed mobile knock-out pad, and this one end of moving knock-out pad is arranged on supporting guide, under the drive of leading screw, can move up and down along described supporting guide; The other end of described mobile knock-out pad and described block board offer opening.
Further, the openings of sizes on described mobile knock-out pad and block board and the external diameter of support tube according to claim 1 match.
Stress cone predilation device provided by the present invention is expanded to stress cone on support tube by expansion power set, stress cone predilation is realized in erecting bed, expansion process can carry out with other operations of outdoor terminal simultaneously, convenient and swift, turn avoid the rear excessive cycle of shrinkage annex expansion simultaneously, stress retraction recovers incomplete phenomena, and also there is not the impression that shrinkage support bar produces, is a kind of very safe mounting means.By the time after outdoor terminal cable insulation is handled well, with stress cone separator provided by the invention, while support tube is extracted out, stress cone is in place, carries out with other operations simultaneously, improve installation effectiveness.The present invention is rational in infrastructure, safe and reliable, through reality test, very easy to use, safe, laborsaving.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is stress cone and support tube schematic diagram after expansion;
Fig. 3 is in-site installation stress cone schematic diagram.
In figure: 1-expansion link; 2-conducts lining; 3-movable supporting frame; 4-support tube; 5-guide cone; 6-stress cone; 7-expandable stent; 8-expands power set; 9-screw turns handle; 10-leading screw mounting panel; 11-supporting guide; 12-flange; 13-leading screw; 14-moves knock-out pad; 15-block board; 16-cable insulation; 17-stress cone fixed support; 18-moves support plate; 19-guide post; 20-fixed supported slab.
Embodiment
As shown in Figure 1, 2, the on-the-spot predilation device of outdoor terminal stress cone provided by the present invention, comprises expansion link 1, expandable stent 7, movable supporting frame 3, and the side of expandable stent 7 is provided with expansion power set 8, and these expansion power set can use hydraulic cylinder; The opposite side of expandable stent 7 is provided with hollow support tube 4, and the external diameter of this support tube is not more than the internal diameter of stress cone 6; Support tube 4 can use PVC material, smooth surface.For ease of the installation on stress cone out of doors terminal, the external diameter of the internal diameter of support tube 4 and the cable of outdoor terminal matches.The front end of support tube 4 is coaxially installed with guide cone 5, and guide cone is detachable, between support tube and expandable stent.Guide cone is tapered, and its front end external diameter is less than the internal diameter of stress cone, and be convenient to guide cone and insert in stress cone, guide cone is arranged on after on support tube, and the outer wall of the guide cone of installation place flushes with support tube or a little less than support tube.Guide cone can use polytetrafluoroethylene carrying material to make, and has the effect of self-lubricating.Expansion link 1 is removably connected with support tube 4, and with this through after support tube 4, guide cone 5 and expandable stent 7, is connected with expansion power set.Can install dismountable conduction lining 2 in the rear end of support tube 4, expansion link 1 is removably mounted on conduction lining 2, is convenient to the connection between expansion link and support tube.Movable supporting frame 3 holds support tube 4, and under the drive of expansion link, movable supporting frame moves in the lump with support tube.The applying of external force during for ease of being taken off from support tube by stress cone, near the rear end of support tube 4, the outer wall of support tube 4 arranges flange 12.
Expandable stent 7 comprises the fixed supported slab 20, the guide post 19 that vertically arrange; Expansion power arranges the right side that 8 are positioned at fixed supported slab 20; The left parallel of fixed supported slab 20 is provided with mobile support plate 18, and one end of guide post 19 is connected with mobile support plate, and the other end is through fixed supported slab 20; Expansion link 1 is successively through mobile support plate 18, fixed supported slab 20, and expansion power set 8 drive expansion link 1 to move, and expansion link drives mobile support plate 18 to move along guide post 19 to fixed supported slab 20 direction; The left parallel of traversing carriage 18 is provided with stress cone fixed support 17.Expandable stent 7 also only can use one piece of fixed head vertically arranged, and be fixed on by stress cone on this fixed head, because fixed head does not move together with stress cone, therefore, the length that support tube enters stress cone is the length of stress cone itself and the difference of guide cone length.And structure complicated a little before adopting, then the length that support tube enters stress cone more easily controls, if need to enter some more, then drive expansion link, traversing carriage to a little distance of the many movements in fixed support direction by expansion power set.
As shown in Figure 1, when the on-the-spot predilation device of outdoor terminal stress cone provided by the present invention uses, first expansion link is elongated to correct position, simultaneously clean support tube, guide cone and stress cone, and smears silicone grease; By expansion link through guide cone, support tube, and fix with support tube, movable supporting frame is utilized to hold support tube, stress cone is fixed on stress cone fixed support, start expansion power set, make expansion link drive support tube and guide cone, traversing carriage together to move along guide post to expanding power set direction, stress cone is along guide cone, and expansion pushes away and is put on support tube gradually; Finally by the dismounting such as expansion link, guide cone, only leave support tube and stress cone, deposit after stress cone and support tube packaging separately, the stress cone deposited separately can be separated with support tube in 36 hours.
As shown in Figure 3, stress cone separator provided by the present invention, comprises supporting guide 11 and leading screw 13; Supporting guide 11 is vertically placed, and the lower end of this supporting guide is horizontally installed with block board 15, and its upper end is horizontally installed with leading screw mounting panel 10; Leading screw 13 is through leading screw mounting panel 10, and screw thread is arranged on leading screw mounting panel; The upper end of leading screw 13 is provided with screw turns handle 9, and its lower end is connected with horizontally disposed mobile knock-out pad 14, and this one end of moving knock-out pad is arranged on supporting guide 11, under the drive of leading screw 13, can move up and down along supporting guide 11; The other end of mobile knock-out pad 14 and block board 15 offer opening, and the external diameter of this opening and support tube 4 matches.
As shown in Figure 3, when stress cone separator provided by the present invention uses, first cleaning cable insulation 16 also smears silicone grease, stress cone separator is snapped into stress cone and support tube relevant position, opening sleeve on block board and mobile knock-out pad is on support tube, and block board props up stress cone; Again support tube is inserted in the appropriate location of cable insulation; Rotational lead screw turning handle, drive screw turns, leading screw drives mobile knock-out pad to move along supporting guide, mobile knock-out pad holds the flange on support tube, continue rotational lead screw turning handle and produce detachment dynamic, stress cone is separated gradually with support tube, makes stress cone be arranged near technological requirement position; After being removed by stress cone separator, manually stress cone is fine-tuning to mark position, after clean, can next procedure be entered.
Above-described embodiment does not limit the present invention in any form, the technical scheme that the mode that all employings are equal to replacement or equivalent transformation obtains, and all drops in protection scope of the present invention.
Claims (9)
1. the on-the-spot predilation device of outdoor terminal stress cone, it is characterized in that: comprise expansion link and expandable stent, the side of described expandable stent is provided with expansion power set; The opposite side of described expandable stent is provided with hollow support tube, and the external diameter of this support tube is less than or equal to the internal diameter of stress cone; The front end of described support tube is coaxially installed with dismountable guide cone, and this guide cone is between described support tube and expandable stent; Described stress cone is enclosed within support tube after guide cone guides; Described expansion link is removably connected with described support tube, and successively through after described support tube, guide cone, expandable stent, is connected with described expansion power set.
2. the on-the-spot predilation device of outdoor terminal stress cone as claimed in claim 1, is characterized in that: the rear end of described support tube is provided with dismountable conduction lining, and this conduction lining is removably connected with described expansion link.
3. the on-the-spot predilation device of outdoor terminal stress cone as claimed in claim 1, is characterized in that: described expandable stent comprises the fixed supported slab, the guide post that vertically arrange; Described expansion power is arranged on the right side of described fixed supported slab; The left parallel of described fixed supported slab is provided with mobile support plate, and one end of described guide post is connected with mobile support plate, and the other end is through described fixed supported slab; Described expansion link is successively through mobile support plate, fixed supported slab, and expansion power set drive expansion link, mobile support plate moves along guide post to described fixed supported slab direction; The left parallel of described traversing carriage is provided with stress cone fixed support.
4. the on-the-spot predilation device of the outdoor terminal stress cone as described in claim 1,2 or 3, is characterized in that: near the rear end of described support tube, the outer wall of described support tube is provided with flange.
5. the on-the-spot predilation device of the outdoor terminal stress cone as described in claim 1,2 or 3, it is characterized in that: also comprise movable supporting frame, this movable supporting frame holds described support tube; Under the drive of expansion link, described movable supporting frame moves together with support tube.
6. the on-the-spot predilation device of the outdoor terminal stress cone as described in claim 1,2 or 3, is characterized in that: the external diameter of the internal diameter of described support tube and the cable of described outdoor terminal matches.
7. the on-the-spot predilation device of the outdoor terminal stress cone as described in claim 1,2 or 3, is characterized in that: described expansion power set are hydraulic cylinder.
8. a stress cone separator, is characterized in that: comprise supporting guide and leading screw; Described supporting guide is vertically placed, and the lower end of this supporting guide is horizontally installed with block board, and its upper end is horizontally installed with leading screw mounting panel; Described leading screw passes leading screw mounting panel and is connected with leading screw mounting panel; The upper end of described leading screw is provided with screw turns handle, and its lower end is connected with a horizontally disposed mobile knock-out pad, and this one end of moving knock-out pad is arranged on supporting guide, under the drive of leading screw, can move up and down along described supporting guide; The other end of described mobile knock-out pad and described block board offer opening.
9. stress cone separator as claimed in claim 8, is characterized in that: the openings of sizes on described mobile knock-out pad and block board and the external diameter of support tube according to claim 1 match.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410852356.8A CN104505762A (en) | 2014-12-31 | 2014-12-31 | Outdoor terminal stress cone onsite pre-dilation device and stress cone separating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410852356.8A CN104505762A (en) | 2014-12-31 | 2014-12-31 | Outdoor terminal stress cone onsite pre-dilation device and stress cone separating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104505762A true CN104505762A (en) | 2015-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410852356.8A Pending CN104505762A (en) | 2014-12-31 | 2014-12-31 | Outdoor terminal stress cone onsite pre-dilation device and stress cone separating device |
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| Country | Link |
|---|---|
| CN (1) | CN104505762A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107979048A (en) * | 2017-12-22 | 2018-05-01 | 江苏华强电气设备有限公司 | A kind of insulating tube type busbar annex expansion device and its application process |
| CN110474255A (en) * | 2019-09-19 | 2019-11-19 | 长园电力技术有限公司 | A kind of mounting device and installation method of cable termination stress cone |
| CN113346261A (en) * | 2021-06-24 | 2021-09-03 | 浙江迪思威电气股份有限公司 | Cable plug-pull mechanism in ring main unit |
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| US4654241A (en) * | 1983-12-27 | 1987-03-31 | Societa' Cavi Pirelli S.P.A. | Cable joint monolithic sleeve installing apparatus |
| US4961255A (en) * | 1988-11-10 | 1990-10-09 | Societa' Cavi Pirelli S.P.A. | Apparatus for applying an insulating sleeve to an electric cable joint |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107979048A (en) * | 2017-12-22 | 2018-05-01 | 江苏华强电气设备有限公司 | A kind of insulating tube type busbar annex expansion device and its application process |
| CN110474255A (en) * | 2019-09-19 | 2019-11-19 | 长园电力技术有限公司 | A kind of mounting device and installation method of cable termination stress cone |
| CN113346261A (en) * | 2021-06-24 | 2021-09-03 | 浙江迪思威电气股份有限公司 | Cable plug-pull mechanism in ring main unit |
| CN113346261B (en) * | 2021-06-24 | 2022-06-03 | 浙江迪思威电气股份有限公司 | Cable plug-pull mechanism in ring main unit |
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Application publication date: 20150408 |
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