CN2348511Y - Cable joint - Google Patents
Cable joint Download PDFInfo
- Publication number
- CN2348511Y CN2348511Y CN 98242373 CN98242373U CN2348511Y CN 2348511 Y CN2348511 Y CN 2348511Y CN 98242373 CN98242373 CN 98242373 CN 98242373 U CN98242373 U CN 98242373U CN 2348511 Y CN2348511 Y CN 2348511Y
- Authority
- CN
- China
- Prior art keywords
- multijaw
- cable
- water
- copper pipe
- fishplate bar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a cable joint used for a power transmission system of an electric furnace on secondary side, belonging to the mechanical field. The utility model is characterized in that a multiple claw sheath (3) is positioned in a round hole on a cable connecting panel (1), taper sleeves (4) are sheathed outside the multiple claw sheath, and a pair of taper sleeves (4) are connected and bolted through a screw bolt (5). A water-cooling wire guide passes the multiple claw sheath, and the multiple claw sheath and the water-cooling wire guide are fastened through the taper sleeves, reducing contact resistance and ensuring electric current unblocked.
Description
A kind of cable joint is used for the transmission system after the electric furnace secondary side goes out, and belongs to mechanical field.
At present, transmission system after the electric furnace secondary side goes out, along with electric furnace develops to ultra high power, generally all adopt the water-cooled steel pipe to conduct electricity, the water-cooled contact tube stretches out from the transformer leading-out terminal, and frame is in the circular hole of cable fishplate bar (1), after being in place, with water-cooled contact tube periphery and the seam of cable fishplate bar, the electric current of water-cooled contact tube is passed on the big electric current water-cooled cable by the cable joint plate at the scene.Cable fishplate bar lower end contacts with the water-cooled high-current cable by screw, in service at furnace operation, make screw loosening easily, behind screw loosening, can cause arcing, destroy the fineness of cable fishplate bar and water-cooled high-current cable contact plane, increased conduction resistance, reconditioning cable fishplate bar, must cut off the water-cooled contact tube, open water-cooled contact tube and cable fishplate bar are molten again, could the reconditioning contact plane, weld with the water-cooled contact tube again during use.
The disadvantages of background technology part is: 1, the every phase current of electric furnace has 2～4 water-cooled contact tubes, distance≤150mm between the tube and tube, and comprehensive circumference welding difficulty is big; 2, can not guarantee weldquality, be easy to generate rosin joint, increase conduction resistance; 3, maintenance difficult, the time between overhauls(TBO) is long, the expense costliness.
The purpose of this utility model is to avoid the weak point of above-mentioned background technology and a kind of cable joint is provided, the multijaw copper pipe is welded on the cable fishplate bar, the water-cooled contact tube is by the multijaw copper pipe, by tapered sleeve that multijaw copper pipe and water-cooled contact tube is fastening then, reduce contact resistance as far as possible, guarantee that electric current is unimpeded.
The utility model can reach by following measure: multijaw sleeve pipe (3) places in the circular hole of cable fishplate bar (1), and tapered sleeve (4) is enclosed within outside the multijaw sleeve pipe, and screw rod (5) connects a pair of tapered sleeve (4), by bolt.
Fig. 1 is the cable joint installation diagram, the multijaw Socket welding is placed in the circular hole of cable fishplate bar (1), respectively there is a multijaw sleeve pipe (3) in two cable fishplate bars (1) outside, then along circumferential edge, in the inside and outside side of cable fishplate bar (1), multijaw copper pipe (3) and cable fishplate bar are welded.
Fig. 2 is a multijaw copper pipe front view, and Fig. 3 is a multijaw copper pipe end view.Multijaw sleeve pipe (3) has cylinder (8) and cone (9), on cylinder (8), a boss (6) is arranged, and cone taper is 1: 10～1: 30, and the cone of multijaw sleeve pipe (9) pipe has compression groove (7) in coaxial direction, and compression groove is 8～12.Cylindrical end at the multijaw copper pipe has boss (4), its effect is to make multijaw copper pipe (3) can be close to the lateral surface of cable fishplate bar (1) when mounted, be convenient to welding, the length from boss to multijaw copper pipe cylinder end face is Duoed 10～15mm than cable fishplate bar (1) thickness.Multijaw copper pipe (3) can have 10～15mm copper pipe to stretch out the medial surface of cable fishplate bar (1) during installation, and this also is convenient to cable fishplate bar (1) medial surface and the welding of multijaw copper pipe.
On the cone (9) of multijaw copper pipe compression groove (7) is arranged, cone length is generally 1/2～2/3 of multijaw copper pipe length overall.Multijaw copper pipe material is a copper material.
Fig. 4 is the tapered sleeve front view, and Fig. 5 is the tapered sleeve end view, and tapered sleeve (4) medial surface tapering is 1: 10～1: 30.Circular hole is arranged on the tapered sleeve, be used for by screw rod (5).The tapered sleeve material is 1Cr18Ni9Ti.
Fig. 5 is pull bar and nut figure.Behind tapered sleeve (2) on two cover multijaw shape pipe joint (1) overcoats, screw rod is by the circular hole of ring flange (3) and ring flange (10), load onto clamp nut (13), dismounting nut (14), clamp nut (13) are adjacent on ring flange, after screwing clamp nut (13), pipe joint guarantees that the water-cooled contact tube normally moves.
The utility model is compared with background technology, and its advantage is:
1, the scene is easy for installation, can guarantee the installation dimension of water-cooled contact tube.
2, can compensate coaxial deviation between the tube and tube.
3, easily adorn, easily unload convenient maintenance.
Fig. 1 multijaw pipe joint installation diagram
Fig. 2 multijaw conical head front view
Fig. 3 multijaw conical head end view
Fig. 4 tapered sleeve profile
Fig. 5 pull bar and nut figure
Below in conjunction with most preferred embodiment the utility model is further set forth:
From the transformer terminal conductive and water cooled copper pipe φ 100mm * 20mm that comes out, when mounted, if going out end, transformer the 40mm spacing is arranged with the cable joint position, the water-cooled contact tube can be cut off, two multijaw conical heads are enclosed within outside the copper pipe, multijaw conical head ring flange φ 160mm * 18mm, have 4 φ 20mm circular holes to be used for loading screw.Cone taper is 1: 30.Boring this microcephaly, to hold diameter be φ 112mm, on 12 compression grooves are arranged, wide 3mm, compression groove height are 100mm, the cylinder height is 30mm, weakens that groove is high to be 5mm.
Make cable joint: multijaw copper pipe cylindrical end is stretched in the circular hole of cable fishplate bar, and boss is stuck in cable fishplate bar lateral surface, along the inside and outside both sides of circumferential edge multijaw copper pipe and cable fishplate bar is welded then.Tapered sleeve is inserted in the conical section of multijaw copper pipe.Screw rod, bolt are by two tapered sleeve circular holes.
The water-cooled contact tube is installed: the water-cooled contact tube is stretched in the multijaw copper pipe, after being in place, screw nut, one group of nut is adjacent to cable fishplate bar lateral surface, and another group nut is adjacent to the square boss face of tapered sleeve, when screwing nut, make tapered sleeve with the cone lock ring of multijaw copper pipe outside the water-cooled contact tube, the multijaw copper pipe is fully contacted with the water-cooled contact tube, thereby add large contact surface, contact resistance is reduced.
So far, the water-cooled contact tube can put into operation.
Want the recovery cable fishplate bar, only need unclamp bolt, copper pipe is extracted out from the multijaw sleeve pipe of cable joint.
Claims (3)
1, a kind of cable joint is characterized in that: multijaw sleeve pipe (3) places in the circular hole of cable fishplate bar (1), and tapered sleeve (4) is enclosed within outside the multijaw sleeve pipe, and screw rod (5) connects a pair of tapered sleeve (4), by bolt.
2, cable joint according to claim 1, it is characterized in that: multijaw sleeve pipe (3) has cylinder (8) and cone (9), on cylinder (8), one boss (6) is arranged, cone taper is 1: 10～1: 30, the cone of multijaw sleeve pipe (9) pipe has compression groove (7) in coaxial direction, and compression groove is 8～12.
3, cable joint according to claim 1 is characterized in that: tapered sleeve (4) medial surface tapering is 1: 10～1: 30.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98242373 CN2348511Y (en) | 1998-10-15 | 1998-10-15 | Cable joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98242373 CN2348511Y (en) | 1998-10-15 | 1998-10-15 | Cable joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2348511Y true CN2348511Y (en) | 1999-11-10 |
Family
ID=33988948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98242373 Expired - Fee Related CN2348511Y (en) | 1998-10-15 | 1998-10-15 | Cable joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2348511Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102420357A (en) * | 2010-11-27 | 2012-04-18 | 江苏德诚冶金电炉设备有限公司 | Water-cooling conductive connecting device for metallurgical smelting equipment |
| CN102761092A (en) * | 2012-06-19 | 2012-10-31 | 江苏科耐特高压电缆附件有限公司 | Novel tail tube for GIS terminal |
| CN102761090A (en) * | 2012-06-19 | 2012-10-31 | 江苏科耐特高压电缆附件有限公司 | Integral tail tube of electrical cable terminal |
-
1998
- 1998-10-15 CN CN 98242373 patent/CN2348511Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102420357A (en) * | 2010-11-27 | 2012-04-18 | 江苏德诚冶金电炉设备有限公司 | Water-cooling conductive connecting device for metallurgical smelting equipment |
| CN102761092A (en) * | 2012-06-19 | 2012-10-31 | 江苏科耐特高压电缆附件有限公司 | Novel tail tube for GIS terminal |
| CN102761090A (en) * | 2012-06-19 | 2012-10-31 | 江苏科耐特高压电缆附件有限公司 | Integral tail tube of electrical cable terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |