CN111404103B - Transmission line direct current ice-melt short circuit chuck - Google Patents
Transmission line direct current ice-melt short circuit chuck Download PDFInfo
- Publication number
- CN111404103B CN111404103B CN201911175234.9A CN201911175234A CN111404103B CN 111404103 B CN111404103 B CN 111404103B CN 201911175234 A CN201911175234 A CN 201911175234A CN 111404103 B CN111404103 B CN 111404103B
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- clamping block
- screw rod
- hole
- transmission line
- clamping
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 29
- 238000002844 melting Methods 0.000 claims abstract description 14
- 230000008018 melting Effects 0.000 claims abstract description 13
- 239000004677 Nylon Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 229920001778 nylon Polymers 0.000 claims description 7
- 230000000670 limiting effect Effects 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 230000009194 climbing Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/16—Devices for removing snow or ice from lines or cables
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
Landscapes
- Electric Cable Installation (AREA)
- Suspension Of Electric Lines Or Cables (AREA)
Abstract
The invention discloses a direct-current ice melting short circuit chuck of a power transmission line, which comprises a first clamping block, a second clamping block and a power cable, wherein the second clamping block is connected with the power cable, the direct-current ice melting short circuit chuck also comprises a screw rod and a pull rope, a first through hole is formed in the first clamping block, a second through hole corresponding to the first through hole is formed in the second clamping block, the screw rod simultaneously penetrates through the first through hole and the second through hole, a first spring is arranged between the first clamping block and the second clamping block, the first spring is sleeved on the screw rod, a pressure head is arranged at one end of the screw rod, the pressure head abuts against the first clamping block, a sliding groove is formed in the second clamping block, the sliding groove is positioned at one side of the second through hole, a threaded sliding block matched with the screw rod is connected in the sliding groove in a sliding mode, and one end, far away from the screw rod, of the threaded sliding block is connected with the pull rope. After the deicing is finished, the chuck can be disassembled by an operator only standing on the ground to pull the pull rope without climbing the electric wire tower again, so that the operation time is saved, and the physical consumption of the operator is reduced.
Description
Technical Field
The invention relates to the technical field of deicing of high-voltage transmission lines, in particular to a direct-current deicing short circuit chuck of a transmission line.
Background
In winter, the weather is cold, the transmission line is easily wrapped by a thick ice layer, the weight of the overhead line is increased by the ice layer, resonance is easily generated under the action of wind, and very serious influence is caused on the electric tower, so that the whole power supply system is influenced, and the life and the economy of people are threatened. The direct-current deicing technology of the power transmission line is a deicing technology which is commonly used at present. The direct-current deicing of the power transmission line is to apply direct-current voltage to the power transmission line and carry out short circuit at the tail end of the power transmission line so as to promote the heating of the cable to melt the ice on the line. The existing direct-current ice melting device generally comprises an electrified cable and a chuck arranged at the end part of the electrified cable, when the direct-current ice melting device is operated, an operator is required to climb up a power tower, the chuck at the end part of the electrified cable is fixed at two ends of a power transmission line to form short circuit on the power transmission cable, then a large current is applied to the power transmission line through the electrified cable, so that the power transmission line generates heat to remove an ice layer on the surface of the power transmission line, and after deicing is completed, the operator is required to climb up the power tower again to take down the chuck. The existing direct-current ice melting technology has the following defects: after each deicing, the operator needs to climb up the electric wire tower again to take down the chuck, which wastes time and increases physical consumption of the operator.
Such as: the Chinese patent publication No. CN 202340108U, the name of the utility model is a rapid short-circuit device for direct-current ice melting of transmission lines, which comprises a lap-joint cable, an upper clamping block and a lower clamping block, wherein one end of the upper clamping block and one end of the lower clamping block are connected by a hinge, the other end of the lower clamping block is connected with a locking nut by a hinge, and a groove-shaped opening matched with the locking nut is arranged on the upper clamping block; the opposite surfaces of the upper clamping block and the lower clamping block are provided with identical cable bayonets, the lower clamping block is connected with a clamping joint which is rapidly connected with a lapping cable, and the lapping cable is connected on the clamping joint. When the utility model is used, the electric power tower needs to be manually climbed, the upper clamping block and the lower clamping block are clamped on the transmission line, the screw rod of the locking nut is clamped on the groove-shaped opening, and then the locking nut is used for spinning; after the deicing is finished, the operator needs to climb up the electric wire tower again to detach the short-circuit device. The utility model discloses a weak point lies in: after every deicing is completed, the operator needs to climb up the electric wire tower again to take down the short-circuit device, which wastes time and increases physical consumption of the operator.
Disclosure of Invention
The invention aims to solve the problems that when the direct-current ice melting technology is used for deicing, after each deicing is finished, an operator needs to climb up a wire tower again to take down a chuck, time is wasted, and physical consumption of the operator is increased.
The purpose of the invention is realized by the following technical scheme: a DC ice-melting short-circuit chuck for a power transmission line comprises a first clamping block and a second clamping block, the power-on cable comprises a power-on cable, a second clamping block, a screw rod and a pull rope, wherein a first through hole is formed in the first clamping block, a second through hole corresponding to the first through hole is formed in the second clamping block, the screw rod simultaneously penetrates through the first through hole and the second through hole, a first spring is arranged between the first clamping block and the second clamping block, the first spring is sleeved on the screw rod, a pressure head is arranged at one end of the screw rod and abutted against the first clamping block, a sliding groove is formed in the second clamping block and positioned at one side of the second through hole, a threaded sliding block matched with the screw rod is connected in the sliding groove in a sliding mode, a thread matched with the screw rod is arranged at one end, close to the screw rod, of the threaded sliding block, a second spring is arranged between one end, far away from the screw rod, of the threaded sliding block and one end of the sliding groove, and one end, far away from the screw rod, of the threaded sliding block is connected with the pull rope; the first clamping block is provided with a first clamping groove, the second clamping block is provided with a second clamping groove corresponding to the first clamping groove, and copper sleeves are arranged on the surfaces of the first clamping groove and the second clamping groove.
When the invention is used, the clamping heads are firstly fixed at the two ends of the power transmission line by operating personnel, and the fixing method comprises the following steps: the cable is clamped between the first clamping block and the second clamping block, and then the screw rod is rotated to enable the first clamping block and the second clamping block to be close to each other so as to clamp the cable. When the chuck needs to be detached after the deicing is completed, an operator pulls the pull rope, the pull rope can drive the threaded slide block to move towards the direction away from the screw rod to enable the threaded slide block to be separated from the screw rod, the screw rod can move along the axial direction of the second through hole at the first spring at the moment, the first clamping block and the second clamping block spring away under the action of the first spring, so that a clamped cable is loosened, the chuck automatically drops to the ground under the action of gravity, the operator only needs to stand on the ground to pull the pull rope to detach the chuck after the deicing is completed, the operator does not need to climb up the power tower again, the operation time is saved, and the physical consumption of the operator is reduced.
Preferably, the end of the screw remote from the ram is provided with a stopper. The limiting head has a limiting effect and can prevent the second chuck from being separated from the screw.
Preferably, one end of the threaded sliding block, which is close to the screw rod, is an arc surface. One end of the threaded sliding block, which is close to the screw rod, is an arc surface, so that the threaded sliding block can be better attached to the side surface of the screw rod.
Preferably, the second clamping block is provided with a rope hole, and the pull rope passes through the rope hole.
Preferably, the inner wall of the rope hole is provided with a drag reduction sleeve.
Preferably, the drag reduction sleeve is made of a nylon material. The drag reduction sleeve is cylindrical, and the drag reduction sleeve can reduce friction between the pull rope and the rope hole.
Preferably, the pull cord is made of a nylon material. The pull rope is made of nylon materials, so that the insulation performance is good, the strength is high, and the pull rope is not easy to break.
Preferably, the pressure head is provided with a rotating handle. The rotating handle can facilitate the operator to rotate the screw.
The invention has the beneficial effects that: after the deicing is finished, the chuck can be disassembled by an operator only standing on the ground to pull the pull rope without climbing the electric wire tower again, so that the operation time is saved, and the physical consumption of the operator is reduced.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an enlarged view of a portion a in fig. 1.
Fig. 3 is a schematic structural diagram of a threaded slider.
In the figure: 1. the device comprises a first clamping block, a second clamping block, a third clamping block, a power-on cable, a fourth clamping block, a fifth clamping block, a sixth clamping block, a fourth spring, a fourth clamping block, a fourth spring, a fourth.
Detailed Description
The invention is further described by the following detailed description in conjunction with the accompanying drawings.
Example 1:
as shown in fig. 1 to 3, the dc ice melting short circuit chuck for the power transmission line comprises a first clamping block 1, a second clamping block 2, an electrified cable 3, a screw rod 4 and a pull rope 10. The second clamp block 2 is connected to an electrified cable 3. The first clamping block 1 and the second clamping block 2 are both made of metal. The first clamping block 1 is provided with a first through hole, and the second clamping block 2 is provided with a second through hole. The screw 4 simultaneously passes through the first through hole and the second through hole. A first spring 5 is arranged between the first clamping block 1 and the second clamping block 2. The first spring 5 is sleeved on the screw rod 4. One end of the screw 4 is provided with a ram 6. The pressure head 6 is abutted against the first pressing block 1. The pressure head 6 is provided with a rotating handle 7. The other end of the screw 4 is provided with a stopper 8. The limiting head 8 is in a cylindrical structure. The diameter of the stopper 8 is larger than the diameter of the second through hole. The second clamping block 2 is provided with a sliding groove 12. The slide groove 12 is located at one side of the second through hole. The axial direction of the slide groove 12 is perpendicular to the screw 4. A threaded slide block 9 matched with the screw rod 4 is connected in the sliding groove 12 in a sliding way. The threaded slider 9 is movable in the axial direction of the slide groove 12. One end of the threaded sliding block 9 close to the screw rod 4 is in a circular arc surface. One end of the thread sliding block 9 close to the screw rod 4 is provided with a thread matched with the screw rod 4. A second spring 13 is arranged between one end of the threaded sliding block 9 far away from the screw rod 4 and one end of the sliding chute 12. The end of the threaded slider 9 away from the screw 4 is connected with a pull rope 10. The second clamping block 2 is provided with a rope hole. The pulling rope 10 passes through the rope hole. The inner wall of the rope hole is provided with a drag reduction sleeve 14. The drag reducing sleeve 14 is cylindrical. The drag reducing sleeve 14 is made of a nylon material. The pull cord 10 is made of a nylon material. The first clamping block 1 is provided with a first clamping groove, and the second clamping block 2 is provided with a second clamping groove corresponding to the first clamping groove. The cross sections of the first clamping groove and the second clamping groove are semicircular. The surfaces of the first clamping groove and the second clamping groove are both provided with copper sleeves 11.
When the invention is used, the clamping heads are firstly fixed at the two ends of the power transmission line by operating personnel, and the fixing method comprises the following steps: the cable is clamped between the first clamping block and the second clamping block, and then the screw rod is rotated to enable the first clamping block and the second clamping block to be close to each other so as to clamp the cable. When the chuck needs to be detached after the deicing is completed, an operator pulls the pull rope, the pull rope can drive the threaded slide block to move towards the direction away from the screw rod to enable the threaded slide block to be separated from the screw rod, the screw rod can move along the axial direction of the second through hole at the first spring at the moment, the first clamping block and the second clamping block spring away under the action of the first spring, so that a clamped cable is loosened, the chuck automatically drops to the ground under the action of gravity, the operator only needs to stand on the ground to pull the pull rope to detach the chuck after the deicing is completed, the operator does not need to climb up the power tower again, the operation time is saved, and the physical consumption of the operator is reduced.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (6)
1. The utility model provides a transmission line direct current ice-melt short circuit chuck, includes first clamp splice, second clamp splice, circular telegram cable, and the second clamp splice links to each other its characterized in that with circular telegram cable: the screw rod is arranged on the first clamping block, a second through hole corresponding to the first through hole is formed in the second clamping block, the screw rod simultaneously penetrates through the first through hole and the second through hole, a first spring is arranged between the first clamping block and the second clamping block, the first spring is sleeved on the screw rod, a pressure head is arranged at one end of the screw rod and abutted against the first clamping block, a sliding groove is formed in the second clamping block and positioned on one side of the second through hole, a threaded sliding block matched with the screw rod is connected in the sliding groove in a sliding mode, a thread matched with the screw rod is arranged at one end, close to the screw rod, of the threaded sliding block, a second spring is arranged between one end, away from the screw rod, of the threaded sliding block and one end of the sliding groove, and one end, away from the screw rod, of the threaded sliding block is connected with the pull rope; a first clamping groove is formed in the first clamping block, a second clamping groove corresponding to the first clamping groove is formed in the second clamping block, and copper sleeves are arranged on the surfaces of the first clamping groove and the second clamping groove; the second clamping block is provided with a rope hole, and a pull rope penetrates through the rope hole; the inner wall of the rope hole is provided with a resistance reducing sleeve; when the transmission line clamp is used, the clamp heads are fixed at two ends of the transmission line through an operator, and the fixing method comprises the following steps: clamping the cable between the first clamping block and the second clamping block, and then rotating the screw rod to enable the first clamping block and the second clamping block to be close to each other so as to clamp the cable; when the chuck needs to be detached after the deicing is completed, an operator pulls the pull rope, the pull rope can drive the threaded slider to move towards the direction away from the screw rod to enable the threaded slider to be separated from the screw rod, the screw rod moves axially along the second through hole under the action of the first spring at the moment, and the first clamping block and the second clamping block are bounced off under the action of the first spring, so that the clamped cable is loosened.
2. The transmission line direct current ice melting short circuit chuck as claimed in claim 1, wherein a limiting head is arranged at one end of the screw rod far away from the pressure head.
3. The direct-current ice melting short circuit chuck for transmission lines according to claim 1, wherein one end of the threaded sliding block close to the screw rod is in an arc surface.
4. The transmission line direct current ice melting short circuit chuck as claimed in claim 1, wherein the drag reduction sleeve is made of nylon material.
5. The transmission line DC ice melting short circuit chuck according to claim 1, wherein the pull rope is made of nylon material.
6. The transmission line direct current ice melting short circuit chuck according to claim 1, wherein a rotating handle is arranged on the pressure head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911175234.9A CN111404103B (en) | 2019-11-26 | 2019-11-26 | Transmission line direct current ice-melt short circuit chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911175234.9A CN111404103B (en) | 2019-11-26 | 2019-11-26 | Transmission line direct current ice-melt short circuit chuck |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111404103A CN111404103A (en) | 2020-07-10 |
| CN111404103B true CN111404103B (en) | 2021-10-08 |
Family
ID=71413155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911175234.9A Active CN111404103B (en) | 2019-11-26 | 2019-11-26 | Transmission line direct current ice-melt short circuit chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111404103B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07336828A (en) * | 1994-06-01 | 1995-12-22 | Yoneda Toshio | Line-crossing tool |
| DE102006020125A1 (en) * | 2006-05-02 | 2007-11-15 | Siemens Ag | Clamping device for attaching e.g. electrical installation device, has profile wall of clamping profile unit pressed using force of spring in direction against connecting unit, when cam is in retaining position |
| CN202340108U (en) * | 2011-12-14 | 2012-07-18 | 贵州电网公司输电运行检修分公司 | Transmission line direct-current ice melting quick short connection device |
| EP2519310A2 (en) * | 2009-12-30 | 2012-11-07 | Cardiac Pacemakers, Inc. | Multi-function lead implant tool |
| CN103490363A (en) * | 2013-09-13 | 2014-01-01 | 郴州市东塘电气设备有限公司 | Rapid Direct-current deicing short circuit device of electric transmission line |
| CN205911453U (en) * | 2016-08-25 | 2017-01-25 | 国网安徽省电力公司检修公司 | Lift -draw style high tension transmission line wire termination ground clamp |
| CN207518210U (en) * | 2017-10-13 | 2018-06-19 | 常州创胜特尔数控机床设备有限公司 | A kind of drag chain for cable protective |
-
2019
- 2019-11-26 CN CN201911175234.9A patent/CN111404103B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07336828A (en) * | 1994-06-01 | 1995-12-22 | Yoneda Toshio | Line-crossing tool |
| DE102006020125A1 (en) * | 2006-05-02 | 2007-11-15 | Siemens Ag | Clamping device for attaching e.g. electrical installation device, has profile wall of clamping profile unit pressed using force of spring in direction against connecting unit, when cam is in retaining position |
| EP2519310A2 (en) * | 2009-12-30 | 2012-11-07 | Cardiac Pacemakers, Inc. | Multi-function lead implant tool |
| CN202340108U (en) * | 2011-12-14 | 2012-07-18 | 贵州电网公司输电运行检修分公司 | Transmission line direct-current ice melting quick short connection device |
| CN103490363A (en) * | 2013-09-13 | 2014-01-01 | 郴州市东塘电气设备有限公司 | Rapid Direct-current deicing short circuit device of electric transmission line |
| CN205911453U (en) * | 2016-08-25 | 2017-01-25 | 国网安徽省电力公司检修公司 | Lift -draw style high tension transmission line wire termination ground clamp |
| CN207518210U (en) * | 2017-10-13 | 2018-06-19 | 常州创胜特尔数控机床设备有限公司 | A kind of drag chain for cable protective |
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| Publication number | Publication date |
|---|---|
| CN111404103A (en) | 2020-07-10 |
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