CN101232156A - Full dry type terminal mounting tools - Google Patents
Full dry type terminal mounting tools Download PDFInfo
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- CN101232156A CN101232156A CNA2007100077662A CN200710007766A CN101232156A CN 101232156 A CN101232156 A CN 101232156A CN A2007100077662 A CNA2007100077662 A CN A2007100077662A CN 200710007766 A CN200710007766 A CN 200710007766A CN 101232156 A CN101232156 A CN 101232156A
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- screw mandrel
- dry type
- type terminal
- full dry
- fixed mechanism
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Abstract
The invention provides a tool for installing full-dry terminal, which comprises a screw (2), provided with a screw thread on at least a portion of the screw; a rotary mechanism (3) rotating around the screw thread portion of the screw (2) to move along the screw (2) and including an end surface (31) facing the full-dry terminal; and a fixing mechanism (6) arranged around the screw (2) and detachably from the screw (2), wherein the fixing mechanism enables the tool to detachably connected with one end of a cable core which requires an arrangement of the full-dry terminal; the full-dry terminal surrounds the screw (2) between the end surfaces of the fixing mechanism (6) and the rotary mechanism (3) and can slide along the screw (2); and the outer diameter of the fixing mechanism is set to enable the full-dry terminal to slide through the fixing mechanism.
Description
Technical field
The present invention relates to the erecting tools of electric cable accessories, relate in particular to the erecting tools of the full dry type terminal of cable.
Background technology
In the 110kV crosslinked cable annex at home and abroad, the prefabrication type electric cable accessories is considered to most advanced and practical electric cable accessories.In the last few years, the high-tension cable engineering of domestic new construction was to adopt the prefabrication type electric cable accessories mostly.
At present, prefabricated stress cone control electric field is adopted in the interior insulation of 110kV high-pressure cross-linking cable prefabrication type outdoor terminal, external insulation is porcelain bushing or silicon rubber composite insulation sleeve, between sleeve and stress cone, generally fill insulating oils such as silicone oil or polyisobutene, also have between stress cone and the full skirt not oil-filledly, be called as the dry type outdoor terminal.
Compaction forces in the 110kV high-voltage crosslinking outdoor cable terminal between the interface of maintenance prefabricated stress cone of rubber and cable insulation is to guaranteeing that the electric cable accessories electrical strength is vital factor.Therefore the prefabrication type electric cable accessories must be guaranteed its prefabricated stress cone of rubber and the insulating surface of cable, through after the long-time running, still keeps enough compaction forces.
How to guarantee that prefabricated stress cone can be installed in reliably that the .110kV full dry type terminal mounting tools is very important on the cable, because 110kV full dry type terminal and prefabricated type cable accessory, it is a kind of product of post forming, moulding for the first time is to become the rubber prefabricated component at produce in factory, moulding for the second time is intact being installed on the cable, and require the installation site accurate, this shows that erecting tools is a very important link.
A kind of mechanism of locking cable end when all having disclosed cable pulling among the Japanese patent application JP8163732 that Japanese patent application JP2000066037 that the open date is on March 3rd, 2003 and open date are on June 21st, 1996, the common ground of above-mentioned two kinds of designs is: when trailing cable, a kind of device that is connected between drag rope and the cable, used instrument when being suitable for use in cable laying, above-mentioned two kinds of designs have mainly solved the problem that firmly is connected between drag rope and the cable.
Though the instrument that above-mentioned patent application disclosed belongs to power industry, above-mentioned two kinds of designs belong to the cable laying instrument.
The employed instrument of like product mainly contains two kinds of forms at present, and first kind is the mode that pushes with suspender belt and hinge, and the mode of this installation has certain damage to product, and installing and locating is inaccurate.When installing with this installation method, cable is easy to flexural deformation, and cable is had certain damage, and the set-up time is grown (about 30min).Second kind is directly to install with manpower, and this mounting means only is fit to special 110kV full dry type terminal, more convenient to the cable installation of small bore, but for heavy in section cable, just very difficult during installation, even need four or five people to assist to install.
Therefore, providing a kind of simple in structure, easy to operate, do not damage the full dry type terminal mounting tools of cable when mounted, is the urgent problem that the 110kV full dry type terminal is installed.
Summary of the invention
The purpose of this invention is to provide a kind of erecting tools of cable full dry type terminal, it is simple in structure, and is easy to operate.
For this reason, the invention provides a kind of instrument that full dry type terminal is installed, it comprises:
One screw mandrel, at least a portion of described screw mandrel comprises screw thread;
One rotating mechanism that moves along described screw mandrel by the threaded portion rotation that centers on described screw mandrel, described rotating mechanism has an end face in the face of described full dry type terminal;
One around the described screw mandrel setting and the fixed mechanism that can take off from described screw mandrel, described fixed mechanism removably is connected in described instrument needs an end of the cable core of installation full dry type terminal, described full dry type terminal is on the screw mandrel that is arranged between the end face of described fixed mechanism and described rotating mechanism and can be along the screw mandrel slippage, and the external diameter of described fixed mechanism is arranged to described full dry type terminal can slippage pass through this fixed mechanism.
On the basis of above-mentioned instrument, comprise that also one also can be along the slip boosting mechanism with thrust bearing of screw mandrel slippage on the screw mandrel around being arranged on, described slip boosting mechanism links to each other with described rotating mechanism motion by described thrust bearing, make rotating mechanism have only moving movement to be delivered to described slip boosting mechanism, with promote the slip boosting mechanism along described screw mandrel towards described cable core slippage.
On the basis of above-mentioned instrument, also comprise one around the described screw mandrel setting and the taper guiding part that can take off from described screw mandrel, one bigger end of this taper leader removably is connected in fixed mechanism, to described full dry type terminal, the outer surface of taper guiding part is arranged to full dry type terminal can slippage pass through it than small end face for another.
On the basis of above-mentioned instrument, described fixed mechanism passes through a bolt in described cable core.
On the basis of above-mentioned instrument, described rotating mechanism cooperates with described screw mandrel by ball.
On the basis of above-mentioned instrument, described taper guiding part is made by elastomeric material.
According to the present invention, a kind of method of full dry type terminal being installed with instrument also is provided, it comprises the steps:
(a) take off a fixed mechanism;
(b) place a full dry type terminal around a screw mandrel, make the end face of described full dry type terminal in the face of a rotating mechanism;
(c) place described fixed mechanism around screw mandrel, described instrument removably is connected on the end of the cable core that full dry type terminal need be installed by described fixed mechanism;
(d) rotate described rotating mechanism, make described rotating mechanism promote described full dry type terminal and move towards cable core along described screw mandrel;
(e) after described full dry type terminal moves through described fixed mechanism and is pulled to the installation site of defined on the cable core, described fixed mechanism is separated with described cable core.
Comprise in step (a) with (b) a slip boosting mechanism around being installed on the screw mandrel, make a thrust bearing on the slip boosting mechanism in the face of the described end face of described rotating mechanism.
In step (a), also comprise and take off a taper guiding part from screw mandrel, comprise described taper guiding part around being installed on the described screw mandrel in step (b) with (c), make a bigger end of this taper leader removably be connected in fixed mechanism afterwards in step (c), another than small end face to described full dry type terminal.
In above-mentioned method, described fixed mechanism passes through a bolt in described cable core.
In above-mentioned method, also put the inside away from that end of cable core end of a slice air conducting sheet at full dry type terminal, playing ventilative effect.
This shows that because the erecting tools of full dry type terminal of the present invention is simple in structure, easy to operate, so have following advantage: the number of spare parts of erecting tools is few, and is in light weight, be easy to carry and carry out installment work to the scene; Installation rate is fast, for example, only needs 7min ~ 10min, compares with present like product, and the set-up time has been improved 3～4 times; When using erecting tools of the present invention product there is not any damage.
Description of drawings
Fig. 1 is the schematic diagram of the erecting tools of cable full dry type terminal of the present invention;
Fig. 2 is the schematic diagram of the first step of erecting tools in installation process of cable full dry type terminal of the present invention;
Fig. 3 is the schematic diagram in second step of erecting tools in installation process of cable full dry type terminal of the present invention;
Fig. 4 is the schematic diagram in three step of erecting tools in installation process of cable full dry type terminal of the present invention;
Fig. 5 is the schematic diagram in four step of erecting tools in installation process of cable full dry type terminal of the present invention;
Fig. 6 is the schematic diagram in five step of erecting tools in installation process of cable full dry type terminal of the present invention.
Embodiment
As shown in Figure 1, the erecting tools of full dry type terminal 1 of the present invention comprises: a screw mandrel 2; Thereby along the rotating mechanism 3 that screw mandrel 2 rotations are advanced or retreated along screw mandrel 2, advancing here refers to install towards needs the cable core 10 of full dry type terminal; Slip boosting mechanism 4 promotes slip boosting mechanism 4 and advances therewith when rotating mechanism 3 advances; Taper guiding part 5; One end of screw mandrel 1 is connected in the fixed mechanism 6 of cable core.Wherein, at least a portion on screw mandrel 2 surfaces has screw thread 21.Rotating mechanism 3, slip boosting mechanism 4, taper guiding part 5 and fixed mechanism 6 are coaxial successively to be installed on the screw mandrel 2.
The boosting end face 31 of slip boosting mechanism 4 contiguous rotating mechanisms 3 is provided with.One end of the boosting end face 31 of slip boosting mechanism 4 contiguous rotating mechanisms 3 is provided with for example thrust bearing 41 of cone bearing; when the rotation of rotating mechanism 3 wire winding rods 2 and simultaneously when screw mandrel 2 advances; rotating mechanism 3 only will be relayed to slip boosting mechanism 4 along the moving movement of screw mandrel 2 by this thrust bearing 41; slip boosting mechanism 4 is slided towards cable core 10 along screw mandrel 2; but do not rotate, with protection full dry type terminal 1 with rotating mechanism 3.
When full dry type terminal 1 is installed, full dry type terminal 1 is placed between described slip boosting mechanism 4 and the taper guiding part 5, taper guiding part 5 is a conical butt, its small end 51 is near full dry type terminals 1, and the overall dimension of taper guiding part 5 is made in the centre bore of adjacent that end with it that its small end 51 can be inserted into full dry type terminal 1.Taper guiding part 5 can be made by elastomeric material.
Fixed mechanism 6 is installed in the outermost end of screw mandrel 2, one end 61 of fixed mechanism 6 is by one first fastener 8, for example connect pin, be connected in screw mandrel 2, its other end 62 is by one second fastener 9, bolt for example, the need that are connected in cable core 10 are installed that end of full dry type terminal 1, fixed mechanism 6 removably is connected in erecting tools thus needs an end of the cable core of installation full dry type terminal, described full dry type terminal is arranged between taper guiding part 5 and the slip boosting mechanism 4 around screw mandrel 2, and can be along screw mandrel 2 slippages, thereby the overall dimension of taper guiding part 5 and fixed mechanism 6 be arranged to described full dry type terminal and can slippage be broken away from them by them by its endoporus.
The installation process of full dry type terminal mounting tools of the present invention is described at accompanying drawing 2 to 6 below.
As shown in Figure 2, fixed mechanism 6 and taper guiding part 5 are taken off from screw mandrel 2, full dry type terminal 1 is enclosed within on the screw mandrel 2.
As shown in Figure 3, taper guiding part 5 is installed then, the small end 51 of taper guiding part 5 is inserted in the centre bore of terminal 1 one ends, again fixed mechanism 6 is enclosed within on the screw mandrel 2, and fixed mechanism is connected and fixed on screw mandrel 2 with first fastener 8 that connects pin and so on.
As shown in Figure 4, with second fastener 9 of bolt and so on the other end of fixed mechanism 6 is fixedly connected on cable core 10.
As shown in Figure 5, direction rotating screw mechanism 3 along the arrow A outside drawing, because rotating mechanism 3 is threaded engagement with screw mandrel 2, so when 2 rotations of rotating mechanism 3 wire winding rods, this rotating mechanism 3 advances towards cable core 10 in the direction of arrow B along screw mandrel 2 simultaneously, like this, rotating mechanism 3 by thrust bearing 41 and slip boosting mechanism 4 make terminal 1 on screw mandrel 2 in the direction of arrow B towards cable core 10 slippages.Because taper guiding part 5 is made by elastomeric material, so terminal 1 the outer surface of the thrust lower edge taper guiding part 5 of rotating mechanism 3 forward displacement by taper guiding part 5, then again along the outer surface of fixed mechanism 6 forward displacement finally leave erecting tools and be enclosed within on the cable core 10 by fixed mechanism 6.
As shown in Figure 6, after terminal 1 is finished displacement, promptly transfer to the installation site of defined on the cable core 10 from the screw mandrel 2 of erecting tools after, erecting tools is pulled down from cable core, like this, finished the installation of full dry type terminal.
In addition, put a slice air conducting sheet the inner, play ventilative effect away from the cable core end at full dry type terminal.
Foregoing only is an embodiment who realizes technical solution of the present invention, on this basis, can change in the scope that does not break away from inventive principle of the present invention.For example, can omit taper guiding part 5, or taper guiding part and fixed mechanism 6 are made of one, or the like.
Claims (11)
1. instrument that full dry type terminal is installed is characterized in that it comprises:
One screw mandrel (2), at least a portion of described screw mandrel comprise screw thread (21);
One rotating mechanism (3) that moves along described screw mandrel (2) by the threaded portion rotation that centers on described screw mandrel (2), described rotating mechanism has an end face (31) in the face of described full dry type terminal;
One fixed mechanism (6) that is provided with and can takes off from described screw mandrel (2) around described screw mandrel (2), described fixed mechanism removably is connected in described instrument needs an end of the cable core of installation full dry type terminal, described full dry type terminal is gone up around the screw mandrel (2) between the end face (31) that is arranged on described fixed mechanism (6) and described rotating mechanism (3) also can be along screw mandrel (2) slippage, and the external diameter of described fixed mechanism is arranged to described full dry type terminal can slippage pass through this fixed mechanism.
2. instrument as claimed in claim 1, it is characterized in that, comprise that also one upward also can be along the slip boosting mechanism (4) with thrust bearing (41) of screw mandrel (2) slippage around being arranged on screw mandrel (2), described slip boosting mechanism (4) links to each other with described rotating mechanism (3) motion by described thrust bearing (41), make rotating mechanism (3) have only moving movement to be delivered to described slip boosting mechanism (4), with promote slip boosting mechanism (4) along described screw mandrel (2) towards described cable core slippage.
3. instrument as claimed in claim 2, it is characterized in that, also comprise a taper guiding part (5) that is provided with and can takes off from described screw mandrel (2) around described screw mandrel (2), one bigger end of this taper leader removably is connected in fixed mechanism, to described full dry type terminal, the outer surface of taper guiding part (5) is arranged to full dry type terminal can slippage pass through it than small end face for another.
4. instrument as claimed in claim 3 is characterized in that, described fixed mechanism (6) is fixed in described cable core by a bolt (9).
5. as any one the described instrument in the claim 1 to 4, it is characterized in that described rotating mechanism (3) cooperates with described screw mandrel (2) by ball.
6. instrument as claimed in claim 5 is characterized in that, described taper guiding part (5) is made by elastomeric material.
7. a method of full dry type terminal being installed with the described instrument of claim 1 is characterized in that it comprises the steps:
(a) take off a fixed mechanism (6);
(b) place a full dry type terminal around a screw mandrel (2), make the end face (31) of described full dry type terminal in the face of a rotating mechanism (3);
(c) place described fixed mechanism (6) around screw mandrel (2), described instrument removably is connected on the end of the cable core that full dry type terminal need be installed by described fixed mechanism;
(d) rotate described rotating mechanism (3), make described rotating mechanism (3) promote described full dry type terminal and move towards cable core along described screw mandrel;
(e) after described full dry type terminal moves through described fixed mechanism (3) and is pulled to the installation site of defined on the cable core, described fixed mechanism (6) is separated with described cable core.
8. method as claimed in claim 7, it is characterized in that, comprise in step (a) with (b) a slip boosting mechanism (4) around being installed on the screw mandrel (2), make a thrust bearing (41) on the slip boosting mechanism (4) in the face of the described end face (31) of described rotating mechanism (3).
9. method as claimed in claim 8, it is characterized in that, in step (a), also comprise from screw mandrel (2) and take off a taper guiding part (5), comprise described taper guiding part (5) around being installed on the described screw mandrel (2) in step (b) with (c), make a bigger end of this taper leader removably be connected in fixed mechanism afterwards in step (c), another than small end face to described full dry type terminal.
10. method as claimed in claim 9 is characterized in that, described fixed mechanism is fixed in described cable core by a bolt (9).
11. method as claimed in claim 9 is characterized in that, puts the inside away from that end of cable core end of a slice air conducting sheet at full dry type terminal, playing ventilative effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710007766 CN101232156B (en) | 2007-01-26 | 2007-01-26 | Full dry type terminal mounting tools |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710007766 CN101232156B (en) | 2007-01-26 | 2007-01-26 | Full dry type terminal mounting tools |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101232156A true CN101232156A (en) | 2008-07-30 |
| CN101232156B CN101232156B (en) | 2012-10-10 |
Family
ID=39898416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710007766 Expired - Fee Related CN101232156B (en) | 2007-01-26 | 2007-01-26 | Full dry type terminal mounting tools |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101232156B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19720758B4 (en) * | 1997-05-07 | 2007-02-01 | Pirelli Cavi E Sistemi S.P.A. | Method and device for applying a sleeve body to the junction of two high voltage cables |
| JP2000066037A (en) * | 1998-08-25 | 2000-03-03 | Sumitomo Electric Ind Ltd | Cable pulling terminal |
| CN100359774C (en) * | 2002-11-22 | 2008-01-02 | 上海三原电缆附件有限公司 | Dry terminal for high-voltage cross-linked cable gas-insulation switch and installation method |
| CN2821589Y (en) * | 2005-08-30 | 2006-09-27 | 广东长园电缆附件有限公司 | Prefabricated high voltage power cable through joint test table shelf |
-
2007
- 2007-01-26 CN CN 200710007766 patent/CN101232156B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101232156B (en) | 2012-10-10 |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20121010 Termination date: 20160126 |
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| EXPY | Termination of patent right or utility model |