CN110690664A - Cross-road pay-off structure and pay-off method for power distribution network - Google Patents
Cross-road pay-off structure and pay-off method for power distribution network Download PDFInfo
- Publication number
- CN110690664A CN110690664A CN201910956328.3A CN201910956328A CN110690664A CN 110690664 A CN110690664 A CN 110690664A CN 201910956328 A CN201910956328 A CN 201910956328A CN 110690664 A CN110690664 A CN 110690664A
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- Prior art keywords
- wire
- pulley
- old
- lead
- new
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 21
- 239000010959 steel Substances 0.000 claims abstract description 21
- 239000004677 Nylon Substances 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 229920001778 nylon Polymers 0.000 claims description 4
- 239000000725 suspension Substances 0.000 claims description 2
- 238000005491 wire drawing Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 7
- 239000004020 conductor Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000004804 winding 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
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H49/00—Unwinding or paying-out filamentary material; Supporting, storing or transporting packages from which filamentary material is to be withdrawn or paid-out
- B65H49/18—Methods or apparatus in which packages rotate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H57/00—Guides for filamentary materials; Supports therefor
- B65H57/14—Pulleys, rollers, or rotary bars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
- B65H59/10—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by devices acting on running material and not associated with supply or take-up devices
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- Electric Cable Installation (AREA)
Abstract
The invention relates to a power distribution network cross-road paying-off structure and a paying-off method, and belongs to the technical field of line construction tools. The technical scheme is as follows: the pulley I (5) is arranged on the flower beam I (4), one end of the new lead (3) is wound on a spool (20) of the pay-off vehicle (9), and one end of the old lead (2) penetrates through the pulley I (5) and then is connected with the other end of the new lead (3); a pulley II (13) is arranged on the flower beam II (22), one end of a steel wire rope (11) is wound on a wire spool (15) of the winching machine (14), and the other end of the steel wire rope penetrates through the pulley II (13) and then is connected with the other end of the old wire (2); a third pulley (17) is arranged on a lifting hook (18) of the crane (19), and the middle part of the old lead (2) is arranged in the third pulley (17). The invention can easily and quickly complete the highway-crossing paying-off task without a crossing frame or traffic restriction, and has the advantages of simple structure, convenient operation, labor saving and high safety factor.
Description
Technical Field
The invention relates to a power distribution network cross-road paying-off structure and a paying-off method, and belongs to the technical field of line construction tools.
Background
In the construction of replacing the old line and erecting the power distribution network for upgrading and reconstructing, when crossing a highway, a crossing frame is often erected or traffic is limited, and the line is picked up by a method of manually carrying the line. The spanning frame needs to be prepared with materials in advance, the spanning frame is erected by an organizer, and the spanning frame needs to be dismantled and transported after stringing is finished, so that labor and time are wasted, and a lot of manpower and material resources are needed. The manual line-lifting method for traffic restriction is low in construction speed, causes great blockage to the passage of people and vehicles due to traffic restriction, has great potential safety hazard, and is low in working efficiency.
Disclosure of Invention
The invention aims to provide a power distribution network cross-road paying-off structure and a paying-off method, wherein an old wire is used for carrying a new wire, and the power distribution network cross-road paying-off structure adopts a mode of paying-off at one side, taking up at the other side and picking up the wire in the middle by a crane hanging pulley; the road-crossing paying-off task can be easily and quickly finished without a crossing frame or traffic restriction, and the problems in the background art are solved.
The technical scheme of the invention is as follows:
a power distribution network cross-road paying-off structure comprises a first electric pole, an old lead, a new lead, a first flower beam, a first pulley, a paying-off vehicle, a second electric pole, a steel wire rope, a second pulley, a winching machine, a third pulley, a lifting hook, a crane and a second flower beam; the first electric pole and the second electric pole are respectively arranged on two sides of a road, a first flower beam is arranged at the top end of the first electric pole, a second flower beam is arranged at the top end of the second electric pole, and the old lead is arranged between the first flower beam and the second flower beam; the pulley I is arranged on the flower beam I, one end of a new wire is wound on a spool of the pay-off vehicle, and one end of an old wire penetrates through the pulley I and then is connected with the other end of the new wire; a second pulley is arranged on the second flower beam, one end of the steel wire rope is wound on a wire spool of the winching machine, and the other end of the steel wire rope penetrates through the second pulley and then is connected with the other end of the old wire; the crane is arranged on a road of a highway, a third pulley is arranged on a lifting hook of the crane, and the middle part of the old wire is arranged in the third pulley.
And the other end of the steel wire rope penetrates through the second pulley and is connected with the other end of the old lead through a binding wire.
And one end of the old lead is connected with the other end of the new lead through a snakeskin sleeve after passing through the pulley I.
The first pulley and the second pulley are both hoisting pulleys.
And the third pulley is a nylon pulley.
The tightener, also called ratchet tightener, is used for tightening the wire in the laying construction of overhead lines.
The wire clamping device is a commonly used wire holding tool in the construction and overhaul of electric power, telecommunication and railway electrification overhead lines.
The grinder is called a motor-driven grinder or a motor-driven grinder for short, is a construction tool such as a stringing, a standing rod and the like necessary for erecting underground wiring of an empty cable, and can smoothly and conveniently erect a conductor for hoisting, traction or stringing in various complex environments.
The snakeskin sleeve is called JDD-FR PET telescopic woven mesh tube for short, is a high-performance mesh tube integrating flame retardance and halogen free, and can meet the requirements of various industrial fields on wear-resistant protection. In particular, its unique braided structure can be expanded to a size 1.5 times larger than its original diameter, and is suitable for wrapping binding wire and cable.
The wire barrow is a manual wire barrow, and a wire shaft is rotated by manually shaking a crank of the wire barrow.
A power distribution network cross-road paying-off method adopts the paying-off structure and comprises the following operation steps:
① stopping the crane on the pavement of the road, extending the boom at an angle of 45 degrees, keeping the hook vertical to the pavement of the road, and hooking the hook with the hook of the third pulley;
②, supporting a spool on a wire barrow, winding one end of a new lead on the spool, hanging a pulley I on a flower beam I of an electric pole I, hooking one end of a wire grip on the flower beam I of the electric pole I, hooking the other end of the wire grip on the wire grip, clamping the wire grip on an old lead, tightening the old lead through the wire grip and the wire grip, then detaching a strain clamp of the old lead and connecting a parallel groove clamp, so that one end of the old lead falls off from the flower beam I of the electric pole I, then sequentially passing the falling end of the old lead through a pulley III and the pulley I, extending the extending end of the old lead and the other end of the new lead into a snake-skin sleeve, connecting the old lead and the new lead through the snake-skin sleeve, and detaching the wire grip and the wire grip after connection;
③ controlling the crane to move the third pulley to the center of the old conductor and adjust the distance between the old conductor and the road surface by adjusting the height of the third pulley;
④ placing a grinder, hanging a pulley II on a flower beam II of a second electric pole, enabling a steel wire rope arranged on a wire spool to pass through the pulley II, binding the extending end of the steel wire rope on the other end of the old wire rope by using a binding wire, and shearing the old wire rope before a binding point by using a large shear to disconnect the other end of the old wire rope from the flower beam II;
⑤ starting the grinder, shaking the wire barrow manually, moving the old and new wires simultaneously until the new wire is completely replaced, taking the new and old wires out of the snakeskin sleeve, recovering the old wire, installing the new wire between the first and second poles to complete the installation of the new wire, wherein the new and old wires are not fallen to the ground all the time in the whole wire replacing process and keep a safe distance with the road.
The wire tightener, the wire clamping device, the winching machine, the wire barrow and the snakeskin sleeve are well known and commonly used by the technical personnel in the field and are sold on the market.
The invention has the following positive effects: the highway-crossing paying-off task can be easily and quickly completed by utilizing the old wire to take the new wire, adopting a mode of paying off at one side, taking up at the other side and picking up the wire in the middle by a crane hanging pulley without taking a crossing frame or traffic limitation, and the highway-crossing paying-off task is simple in structure, convenient to operate, labor-saving and labor-saving, high in safety coefficient and good in economic benefit and social benefit.
Drawings
FIG. 1 is a schematic view of the present invention after installation;
FIG. 2 is a schematic view of the structure of the wire grip and the wire clamp when the invention is installed;
in the figure: the cable comprises a first electric pole 1, an old wire 2, a new wire 3, a first flower beam 4, a first pulley 5, a wire grip 6, a wire clamp 7, a snakeskin sleeve 8, a wire barrow 9, a second electric pole 10, a steel wire rope 11, a binding wire 12, a second pulley 13, a winching machine 14, a wire reel 15, a large shear 16, a third pulley 17, a lifting hook 18, a crane 19, a wire shaft 20, a road 21 and a second flower beam 22.
Detailed Description
The invention is further described with reference to the following figures and examples:
a power distribution network cross-road paying-off structure comprises a first electric pole 1, an old wire 2, a new wire 3, a first flower beam 4, a first pulley 5, a paying-off trolley 9, a second electric pole 10, a steel wire rope 11, a second pulley 13, a winching machine 14, a third pulley 17, a lifting hook 18, a crane 19 and a second flower beam 22; the first electric pole 1 and the second electric pole 10 are respectively arranged on two sides of a highway 21, the first flower beam 4 is arranged at the top end of the first electric pole 1, the second flower beam 22 is arranged at the top end of the second electric pole 10, and the old lead 2 is arranged between the first flower beam 4 and the second flower beam 22; the pulley I5 is arranged on the flower beam I4, one end of the new lead 3 is wound on a spool 20 of the pay-off vehicle 9, and one end of the old lead 2 penetrates through the pulley I5 and then is connected with the other end of the new lead 3; a second pulley 13 is arranged on the second flower beam 22, one end of the steel wire rope 11 is wound on the wire spool 15 of the winching machine 14, and the other end of the steel wire rope passes through the second pulley 13 and then is connected with the other end of the old wire 2; the crane 19 is arranged on the access way of the highway 21, the lifting hook 18 of the crane 19 is provided with a third pulley 17, and the middle part of the old lead 2 is arranged in the third pulley 17.
And the other end of the steel wire rope 11 passes through the second pulley 13 and then is connected with the other end of the old lead 2 through a binding wire 12.
One end of the old lead 2 passes through the pulley I5 and then is connected with the other end of the new lead 3 through a snakeskin sleeve 8.
The first pulley 5 and the second pulley 13 are both hoisting pulleys and can bear the tension of the tightening wire.
The third pulley is a nylon pulley, a hook of the nylon pulley is connected with a lifting hook 18 of the crane, the wire moves in the third pulley, and the crane can freely adjust the height of the third pulley 17 along with the change of the tightness state of the wire to keep the safe distance between the wire and the road.
The wire barrow 9 is used for manually paying off, and the rotating speed of the wire shaft 20 is controlled by the speed of the hand-operated wire barrow.
The winching machine 14 is an electric winching machine, and the existing electric winching machines are provided with wire reels 15 and reverse gears, so that the winching machines can smoothly advance and reverse.
The crane 19 is a 25-ton crane, the crane is stopped on a highway pavement, the suspension arm extends out at an angle of 45 degrees, and the lifting hook is arranged perpendicular to the highway pavement.
A power distribution network cross-road paying-off method adopts the paying-off structure and comprises the following operation steps:
① stopping the crane 19 on the road, extending the boom at 45 degree angle, keeping the hook vertical to the road surface, and hanging the hook 18 with the hook of the third pulley 17;
②, hanging a pulley I5 on a flower beam I4 of a first electric pole 1, hooking one end of a wire grip 6 on the flower beam I of the first electric pole, hooking the other end of the wire grip 7 on the wire grip 7, clamping the wire grip 7 on an old wire, tightening the old wire 2 through the wire grip and the wire grip, then detaching a strain clamp and a connecting and parallel groove clamp of the old wire, so that one end of the old wire falls off from the flower beam I4 of the first electric pole 1, then sequentially passing the falling end of the old wire 2 through a pulley III 17 and the pulley I5, extending the extending end of the old wire and the other end of the new wire 3 into a snakeskin sleeve, connecting the old wire and the new wire through the snakeskin sleeve 8, and detaching the wire grip 6 and the wire grip 7 after connection;
③ controlling the crane to move the third pulley 17 to the center of the old lead and adjusting the distance between the old lead and the road surface by adjusting the height of the third pulley;
④ placing a grinder 14, hanging a pulley II 13 on a flower beam II 22 of a pole II 10, passing a steel wire rope 11 arranged on a wire spool 15 through the pulley II 13, binding the extending end of the steel wire rope 11 on the other end of the old lead 2 by using a binding wire 12, cutting off the old lead 2 by using a large shear 16 before the binding point, and disconnecting the other end of the old lead 2 from the flower beam II 22;
⑤ starting the winching machine 14, shaking the wire barrow 9 manually at the same time, moving the old lead and the new lead at the same time until the new lead 3 is completely replaced, taking the new lead and the old lead out of the snakeskin sleeve, recovering the old lead, installing the new lead between the first electric pole and the second electric pole to complete the installation of the new lead, wherein the new lead and the old lead are not fallen to the ground all the time in the whole wire replacing process and keep a safe distance with the highway.
Claims (6)
1. The utility model provides a distribution network is cross highway unwrapping wire structure which characterized in that: the special wire drawing machine comprises a first electric pole (1), an old wire (2), a new wire (3), a first flower beam (4), a first pulley (5), a wire barrow (9), a second electric pole (10), a steel wire rope (11), a second pulley (13), a winching machine (14), a third pulley (17), a lifting hook (18), a crane (19) and a second flower beam (22); the first electric pole (1) and the second electric pole (10) are respectively arranged on two sides of a road (21), a first flower beam (4) is arranged at the top end of the first electric pole (1), a second flower beam (22) is arranged at the top end of the second electric pole (10), and the old lead (2) is arranged between the first flower beam (4) and the second flower beam (22); the pulley I (5) is arranged on the flower beam I (4), one end of the new lead (3) is wound on a spool (20) of the pay-off vehicle (9), and one end of the old lead (2) penetrates through the pulley I (5) and then is connected with the other end of the new lead (3); a pulley II (13) is arranged on the flower beam II (22), one end of a steel wire rope (11) is wound on a wire spool (15) of the winching machine (14), and the other end of the steel wire rope penetrates through the pulley II (13) and then is connected with the other end of the old wire (2); the crane (19) is arranged on an access way of a highway (21), a third pulley (17) is arranged on a lifting hook (18) of the crane (19), and the middle part of the old lead (2) is arranged in the third pulley (17).
2. The power distribution network cross-road paying-off structure according to claim 1, characterized in that: and the other end of the steel wire rope (11) passes through the second pulley (13) and then is connected with the other end of the old lead (2) through a binding wire (12).
3. The power distribution network cross-road paying-off structure according to claim 1, characterized in that: one end of the old lead (2) passes through the pulley I (5) and then is connected with the other end of the new lead (3) through a snakeskin sleeve (8).
4. The power distribution network cross-road paying-off structure according to claim 1, characterized in that: the first pulley (5) and the second pulley (13) are both hoisting pulleys.
5. The power distribution network cross-road paying-off structure according to claim 1, characterized in that: and the third pulley is a nylon pulley.
6. A method for paying off a power distribution network across a road, which adopts a paying off structure defined by any one of claims 1 to 5, and is characterized by comprising the following operation steps:
① the crane (19) is stopped on the road, the suspension arm extends out at an angle of 45 degrees, the hook is vertical to the road surface, the hook (18) is hooked with the hook of the third pulley (17);
②, a spool (20) on a wire barrow (9) is supported, one end of a new lead (3) is wound on the spool (20), a first pulley (5) is hung on a first flower beam (4) of a first electric pole (1), one end of a wire grip (6) is hooked on the first flower beam of the first electric pole, the other end of the wire grip is hooked on a wire grip (7), the wire grip (7) is clamped on an old lead, the old lead (2) is tightened through the wire grip and the wire grip, then a strain clamp and a parallel groove clamp of the old lead are dismounted, one end of the old lead is separated from the first flower beam (4) of the first electric pole (1), the separated end of the old lead (2) sequentially passes through a third pulley (17) and the first pulley (5), the extending end of the old lead and the other end of the new lead (3) both extend into a snakeskin sleeve, the old lead and the new lead are connected through the snakeskin sleeve (8), and the wire grip (6) and the wire grip (7) are dismounted after connection is finished;
③ controlling the crane, moving the third pulley (17) to the center of the old lead, and adjusting the distance between the old lead and the road surface by adjusting the height of the third pulley;
④ placing a grinder (14), hanging a pulley II (13) on a flower beam II (22) of a pole II (10), enabling a steel wire rope (11) arranged on a wire spool (15) to penetrate through the pulley II (13), binding the extending end of the steel wire rope (11) to the other end of the old lead (2) by using a binding wire (12), cutting the old lead (2) by using a large shear (16) in front of a binding point, and disconnecting the other end of the old lead (2) from the flower beam II (22);
⑤ starting the grinder (14), shaking the wire barrow (9) manually at the same time, moving the old wire and the new wire simultaneously until the new wire (3) is completely replaced, taking the new wire and the old wire out of the snakeskin sleeve, recovering the old wire, installing the new wire between the first electric pole and the second electric pole to complete the installation of the new wire, wherein the new wire and the old wire do not fall to the ground all the time in the whole wire replacing process, and keep a safe distance with the road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910956328.3A CN110690664A (en) | 2019-10-10 | 2019-10-10 | Cross-road pay-off structure and pay-off method for power distribution network |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910956328.3A CN110690664A (en) | 2019-10-10 | 2019-10-10 | Cross-road pay-off structure and pay-off method for power distribution network |
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| Publication Number | Publication Date |
|---|---|
| CN110690664A true CN110690664A (en) | 2020-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910956328.3A Pending CN110690664A (en) | 2019-10-10 | 2019-10-10 | Cross-road pay-off structure and pay-off method for power distribution network |
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| CN (1) | CN110690664A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113054583A (en) * | 2021-03-31 | 2021-06-29 | 湖州师范学院 | Method for replacing concealed hose with sleeve |
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| JPH0569759A (en) * | 1991-09-10 | 1993-03-23 | East Japan Railway Co | Replacement for railway high voltage cable |
| GB2341011B (en) * | 1998-08-27 | 2003-01-22 | Cbs Products Ltd | Apparatuses and methods for stringing cables |
| CN202190023U (en) * | 2011-07-29 | 2012-04-11 | 四川省电力公司攀枝花电业局 | Wire bracing device for overhead wire |
| CN104410005A (en) * | 2014-10-24 | 2015-03-11 | 国家电网公司 | Operation method for replacing overhead conductor and ground wire |
| CN204316007U (en) * | 2014-12-30 | 2015-05-06 | 国家电网公司 | A kind of transmission line crossing construction device |
| CN104836163A (en) * | 2015-05-29 | 2015-08-12 | 国网山东昌邑市供电公司 | Trans-road paying-off high-altitude support |
| CN204696565U (en) * | 2015-07-07 | 2015-10-07 | 国网冀北电力有限公司唐山供电公司 | Line pulley is crossed in a kind of simple and easy scissors crossing |
| KR20170067983A (en) * | 2015-12-09 | 2017-06-19 | (주)한백 | Electric Power Transmission Cable Laying Method Between Long Span Tower |
| CN210326718U (en) * | 2019-10-10 | 2020-04-14 | 国网冀北电力有限公司迁西县供电分公司 | Highway unwrapping wire structure is striden to distribution network |
-
2019
- 2019-10-10 CN CN201910956328.3A patent/CN110690664A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0569759A (en) * | 1991-09-10 | 1993-03-23 | East Japan Railway Co | Replacement for railway high voltage cable |
| GB2341011B (en) * | 1998-08-27 | 2003-01-22 | Cbs Products Ltd | Apparatuses and methods for stringing cables |
| CN202190023U (en) * | 2011-07-29 | 2012-04-11 | 四川省电力公司攀枝花电业局 | Wire bracing device for overhead wire |
| CN104410005A (en) * | 2014-10-24 | 2015-03-11 | 国家电网公司 | Operation method for replacing overhead conductor and ground wire |
| CN204316007U (en) * | 2014-12-30 | 2015-05-06 | 国家电网公司 | A kind of transmission line crossing construction device |
| CN104836163A (en) * | 2015-05-29 | 2015-08-12 | 国网山东昌邑市供电公司 | Trans-road paying-off high-altitude support |
| CN204696565U (en) * | 2015-07-07 | 2015-10-07 | 国网冀北电力有限公司唐山供电公司 | Line pulley is crossed in a kind of simple and easy scissors crossing |
| KR20170067983A (en) * | 2015-12-09 | 2017-06-19 | (주)한백 | Electric Power Transmission Cable Laying Method Between Long Span Tower |
| CN210326718U (en) * | 2019-10-10 | 2020-04-14 | 国网冀北电力有限公司迁西县供电分公司 | Highway unwrapping wire structure is striden to distribution network |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113054583A (en) * | 2021-03-31 | 2021-06-29 | 湖州师范学院 | Method for replacing concealed hose with sleeve |
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