CN114696307A - Conductive device of paying-off tackle - Google Patents
Conductive device of paying-off tackle Download PDFInfo
- Publication number
- CN114696307A CN114696307A CN202011594141.2A CN202011594141A CN114696307A CN 114696307 A CN114696307 A CN 114696307A CN 202011594141 A CN202011594141 A CN 202011594141A CN 114696307 A CN114696307 A CN 114696307A
- Authority
- CN
- China
- Prior art keywords
- tackle
- paying
- connecting plate
- conducting
- coaster
- 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.)
- Pending
Links
- 229910052751 metal Inorganic materials 0.000 claims abstract description 22
- 239000002184 metal Substances 0.000 claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 6
- 239000010959 steel Substances 0.000 claims abstract description 6
- 230000005611 electricity Effects 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 8
- 230000005540 biological transmission Effects 0.000 abstract description 7
- 230000007547 defect Effects 0.000 abstract description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/045—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage adapted to a particular application and not provided for elsewhere
- H02H9/047—Free-wheeling circuits
-
- 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
- Elimination Of Static Electricity (AREA)
Abstract
The invention relates to construction equipment of power transmission line engineering, in particular to a conducting device of a paying-off tackle, which comprises a tackle connecting plate and conducting grounding brushes, wherein the tackle connecting plate is fixedly connected to a tackle connecting plate of the paying-off tackle, the number of the conducting grounding brushes is the same as that of wheels of the paying-off tackle, the conducting grounding brushes correspond to the wheels of the paying-off tackle one by one, each conducting grounding brush comprises an insulating rubber sheet and a metal woven conducting contact sheet, the upper end of the metal woven conducting contact sheet is fixed between the two insulating rubber sheets, the lower end of the metal woven conducting contact sheet is used for contacting with a lead or a steel wire rope, and the two insulating rubber sheets are fixedly connected to the tackle connecting plate. The invention effectively solves the defects in the application of the prior conducting device of the paying-off tackle, has simple structure, small volume, light weight, low cost and convenient use, and provides a good tool for electrostatic discharge; in the application process, the metal braided conductive contact piece is directly contacted with a lead or a steel wire rope, so that the electric conductivity is high, the conductive brush is tough and elastic, is not easy to crash, and can be used in both directions.
Description
Technical Field
The invention relates to transmission line engineering construction equipment, in particular to a conducting device of a paying-off tackle, which can release induced electricity generated in stringing construction, and is suitable for a construction site where a newly-built transmission line is close to a live transmission line running in parallel, the generated induced electricity is large, and the device and personnel are injured.
Background
At present, power transmission lines are densely constructed, and the distance between lines is smaller and smaller. The engineering of the high-voltage direct-current transmission line with +/-800 kilovolts from northern Shaanxi to Hubei under construction parallelly approaches the Shashao line with +/-800 kilovolts and the high-voltage direct-current transmission line with +/-800 kilovolts and the minimum distance is 31 meters. In the process of stringing construction, induced electricity generated on a newly-built wire is large, so that constructors and equipment are extremely easy to be seriously injured, and the problem becomes a safety problem that a newly-built line is close to a parallel live-line operation line and is urgently to be solved in the process of stringing construction by tension.
The existing conductive paying-off tackle basically comprises an aluminum alloy wheel upper pressing type and an aluminum alloy wheel lower supporting type. As shown in figure 1, an aluminum alloy wheel 1 of an aluminum alloy wheel lower supporting type contacts with a conducting wire, the aluminum alloy wheel 1 is connected with a paying-off pulley 3 through a metal supporting plate 2, the upper ends of the two supporting plates 2 are respectively connected with the paying-off pulley 3 through springs 4, and the lower ends of the supporting plates 2 on two sides are respectively hinged with the paying-off pulley 3. As shown in figure 2, the aluminum alloy wheel 1 pressed on the aluminum alloy wheel is connected with the paying-off tackle 3 through a connecting plate 5. The basic principle of the two existing conductive pulleys is that an aluminum alloy wheel 1 is adopted to contact a lead, and a paying-off pulley 3 is connected with the ground through a grounding wire to release static on the lead. However, the two existing paying-off pulleys have certain problems in use and are difficult to popularize and apply: firstly, the pulley can only be used in one way, the pulley must be hung with attention to the hanging direction, otherwise the pulley cannot work normally, the construction is greatly inconvenient, the efficiency is low, and the potential safety hazard is large; secondly, the lower support type of the aluminum alloy wheel is equivalent to the same length, the number of the pulleys in the paying-off process is increased, the friction coefficient of the pulleys is increased, and the requirement of the construction process guide rule is not met; thirdly, the aluminum alloy wheel is easy to be damaged by the collision of the traction plate in the upward pressing type paying-off process, the lead is damaged, and the maintenance cost is high; fourthly, the two forms are heavy in mass and high in manufacturing cost.
Disclosure of Invention
The invention aims to solve the problem of potential safety hazard that induced electricity generated near a live-line operation line cannot be effectively released and causes injury to constructors in the construction process of an extra-high voltage overhead line because a large-section conductive pay-off tackle capable of effectively releasing induced electricity is not available at the present stage.
The purpose of the invention is realized by the following technical scheme:
the paying-off pulley comprises a pulley connecting plate and conductive grounding brushes, wherein the pulley connecting plate is fixedly connected to a pulley yoke plate of a paying-off pulley, the number of the conductive grounding brushes is the same as that of wheels of the paying-off pulley, the conductive grounding brushes correspond to the wheels of the paying-off pulley one by one, each conductive grounding brush comprises an insulating rubber sheet and a metal woven conductive contact sheet, the upper end of the metal woven conductive contact sheet is connected with the pulley connecting plate, the middle of the metal woven conductive contact sheet is fixed between the two insulating rubber sheets, the lower end of the metal woven conductive contact sheet is used for contacting with a wire or a steel wire rope, and the two insulating rubber sheets are fixedly connected to the pulley connecting plate.
Wherein: the metal braided conductive contact piece is of an elastic sheet structure braided by copper wires.
The tackle connecting plate is a metal plate used for connecting the paying-off tackle and the conductive grounding brushes, and a bolt connecting hole is formed in the tackle connecting plate.
The two insulating rubber sheets are connected through rivets, and the metal woven conductive contact sheet is fixed between the two insulating rubber sheets.
The paying-off tackle is connected with the ground through the iron tower by utilizing the ground wire, and a release loop of induced electricity on a lead or a steel wire rope through the conducting device arranged on the paying-off tackle is formed.
The invention has the advantages and positive effects that:
1. the invention effectively overcomes the defects in the application of the prior conducting device of the paying-off tackle, has simple structure, small volume, light weight, low cost and convenient use, and provides a good tool for electrostatic discharge.
2. The conductive grounding brush has high elasticity, can quickly recover the original shape after being deformed, is not easy to be damaged by collision, and has low use cost.
3. The invention can be used in two directions, and the paying-off tackle can be hung in any direction, thereby improving the construction rapidity.
4. The invention has light weight and convenient and fast installation and disassembly.
5. The invention has simple processing technology and low processing and manufacturing cost.
Drawings
FIG. 1 is a schematic view of a bottom-up type aluminum alloy wheel in the prior art;
FIG. 2 is a schematic view of an up-pressing type three-dimensional structure of an aluminum alloy wheel in the prior art;
FIG. 3 is a schematic perspective view of the present invention;
FIG. 4 is a front view of the structure of the present invention;
FIG. 5 is a right side view of the structure of the present invention;
FIG. 6 is an enlarged view of a portion of the conductive grounding brush of the present invention;
wherein: 1 is the aluminum alloy wheel, 2 is the backup pad, 3 is the unwrapping wire coaster, 4 is the spring, 5 is the connecting plate, 6 is the insulating rubber piece, 7 is the metal and weaves electrically conductive contact piece, 8 is connecting bolt, 9 is the rivet, 10 is the coaster yoke plate.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 3 to 6, the invention includes a pulley connecting plate 5 and conductive grounding brushes, wherein the pulley connecting plate 5 is fixedly connected to a pulley connecting plate 10 of the paying-off pulley 3, and the number of the conductive grounding brushes is the same as the number of wheels of the paying-off pulley 3 and corresponds to one another; the number of the conductive grounding brushes is different according to the model of the pay-off tackle 3 (in the embodiment, three conductive grounding brushes are required by taking a three-wheel tackle as an example). Every electrically conductive earthing brush all includes insulating rubber piece 6 and metal and weaves electrically conductive contact piece 7, and the upper end and the coaster connecting plate 5 of electrically conductive contact piece 7 are woven to the metal are fixed between two insulating rubber pieces 6 in the middle of being connected, and the lower extreme is used for contacting with wire or wire rope (including haulage rope, guide rope), and 6 rigid couplings of two insulating rubber pieces are on coaster connecting plate 5.
The metal-braided conductive contact piece 7 of the present embodiment is a sheet structure having elasticity woven by a copper wire, and the two insulating rubber pieces 6 are connected by a rivet, and the metal-braided conductive contact piece 7 is fixed between the two insulating rubber pieces 6.
The tackle connecting plate 5 of this embodiment is a metal plate for connecting the paying-off tackle 3 and each conductive grounding brush, and the material can be Q345 steel, and a bolt connection hole is respectively seted up at the left and right both ends of this tackle connecting plate 5.
The pulley connecting plate 5 and the conductive grounding brush are connected with each other by bolts to form a complete conductive device, and the conductive device can be used by being installed on the pulley yoke plate 10 by bolts. The paying-off tackle 3 is connected with the ground through an iron tower by utilizing a ground wire, and a release loop of induced electricity on a lead or a traction rope through the conductive device arranged on the paying-off tackle 3 is formed.
When the invention is applied:
simple to operate, pass through coaster connecting plate 5 with bolted connection to coaster yoke plate 10 with the electrically conductive device and can use, need not destroy the original structure of coaster yoke plate 10, utilize the original connecting hole of coaster yoke plate 10, reuse bolted connection can. After the paying-off tackle is connected with the conducting device, one end of the grounding wire is connected with one end of the tackle to be connected with the iron tower, and then the static electricity on the conducting wire is released through the conducting device. In the application process of the invention, the metal braided conductive contact piece 7 is directly contacted with the lead, the conductivity is high, the conductive brush has toughness and elasticity, is not easy to be damaged by collision, and can be used in both directions.
When the invention is disassembled:
the paying-off tackle is simple in structure and convenient to disassemble and assemble, the paying-off tackle 3 is used, the disassembling work can be completed by disassembling the bolt on the tackle connecting plate 5, the conducting device can be repeatedly used, the processing cost is low, and the production is easy.
Claims (5)
1. The utility model provides a conductive device of unwrapping wire coaster which characterized in that: including coaster connecting plate (5) and electrically conductive earthing brush, wherein coaster connecting plate (5) rigid coupling is on coaster yoke plate (10) of unwrapping wire coaster (3), the quantity of electrically conductive earthing brush is the same with the wheel quantity of unwrapping wire coaster (3), and the one-to-one, every electrically conductive earthing brush all includes that insulating rubber piece (6) and metal weave electrically conductive contact piece (7), the upper end and coaster connecting plate (5) of electrically conductive contact piece (7) are woven to the metal are connected, and the centre is fixed between two insulating rubber pieces (6), and the lower extreme is used for contacting with wire or wire rope, two insulating rubber piece (6) rigid coupling is on coaster connecting plate (5).
2. The conducting device of the payoff tackle as claimed in claim 1, wherein: the metal braided conductive contact piece (7) is of an elastic sheet structure braided by copper wires.
3. The conducting device of the payoff tackle as claimed in claim 1, wherein: the tackle connecting plate (5) is a metal plate used for connecting the paying-off tackle (3) and each conductive grounding brush, and a bolt connecting hole is formed in the tackle connecting plate (5).
4. The conducting device of the payoff tackle as claimed in claim 1, wherein: the two insulating rubber sheets (6) are connected through rivets, and the metal woven conductive contact sheet (7) is fixed between the two insulating rubber sheets (6).
5. The conducting device of the payoff tackle as claimed in claim 1, wherein: the paying-off tackle (3) is connected with the ground through an iron tower by utilizing a ground wire, and a release loop of induced electricity on a lead or a steel wire rope through the conducting device arranged on the paying-off tackle (3) is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011594141.2A CN114696307A (en) | 2020-12-29 | 2020-12-29 | Conductive device of paying-off tackle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011594141.2A CN114696307A (en) | 2020-12-29 | 2020-12-29 | Conductive device of paying-off tackle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114696307A true CN114696307A (en) | 2022-07-01 |
Family
ID=82133189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011594141.2A Pending CN114696307A (en) | 2020-12-29 | 2020-12-29 | Conductive device of paying-off tackle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114696307A (en) |
-
2020
- 2020-12-29 CN CN202011594141.2A patent/CN114696307A/en active Pending
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