CN209948529U - Live lifting mechanism for three-phase lead of straight-line section of 10kV distribution network line - Google Patents
Live lifting mechanism for three-phase lead of straight-line section of 10kV distribution network line Download PDFInfo
- Publication number
- CN209948529U CN209948529U CN201920783128.8U CN201920783128U CN209948529U CN 209948529 U CN209948529 U CN 209948529U CN 201920783128 U CN201920783128 U CN 201920783128U CN 209948529 U CN209948529 U CN 209948529U
- Authority
- CN
- China
- Prior art keywords
- pulley
- rope
- insulating
- distribution network
- fork
- 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.)
- Active
Links
Images
Landscapes
- Suspension Of Electric Lines Or Cables (AREA)
Abstract
The utility model discloses a 10kV joins in marriage electrified lifting mechanism of net twine way straightway three-phase wire aims at providing the electrified lifting mechanism of net twine way straightway three-phase wire of 10kV that can improve the operating efficiency. The three-fork rope type elevator comprises an insulating square tube, three fork ropes and three groups of pulley blocks; the pulley block comprises a fixed pulley, a movable pulley provided with a lifting hook, and an insulating pull rope wound and connected with the fixed pulley and the movable pulley; the middle part and two ends of the insulating square tube are respectively provided with a first connecting sleeve, and the upper end and the lower end of each first connecting sleeve are respectively provided with a connecting lug; the three connecting ends at the lower end of the three-fork rope are respectively connected with the upper connecting lugs of the three first connecting sleeves; and the fixed pulleys of the three groups of pulley blocks are respectively connected with connecting lugs at the lower ends of the three first connecting sleeves. The utility model discloses can improve work efficiency, reduce the operation risk, alleviate operation personnel intensity of labour.
Description
Technical Field
The utility model belongs to the technical field of the electrified equipment that overhauls of high voltage transmission lines technique and specifically relates to a 10kV joins in marriage electrified lifting mechanism of net twine way straightway three-phase wire.
Background
The operation department of the distribution network line needs to regularly change the three-phase pin insulator by the 10kV distribution network line straight rod in a charged way, the replacement operation of the three-phase pin insulator is long in time consumption and low in operation efficiency, the reason for this is that the charged replacement of the three-phase pin insulator is generally carried out by adopting the traditional charged operation method, one phase is shielded in an insulating way, one phase is replaced, the other phase is shielded in an insulating way and then replaced, and the like, the repeated shielding time accounts for 60-70% of the whole operation time, the labor intensity of operators is high, and the working efficiency of the charged operation is seriously influenced.
Urban 10kV circuit is because historical leave over the scheduling problem, and 10kV joins in marriage net line and mostly has ageing and unreasonable the erection, and the circuit insulation rate is low, and the electric wire netting structure is weaker, and the suburb joint portion resident builds the house violating the regulations, leads to the circuit not enough to the ground distance, and the other shaft tower of traffic route suffers the vehicle and strikes the condition and sometimes takes place, causes the shaft tower to have the damage more, threatens the security of lives and property of people around the circuit seriously. In the past, when the distance between a conducting wire and the ground is not enough, a line tower with the insufficient room clearance can only be lifted under the condition of line power failure, and when a damaged tower needs to be replaced, the replacement can also be carried out under the condition of line power failure, so that the normal power supply to customers is interrupted necessarily, and the power supply reliability is greatly reduced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a purpose aims at overcoming the not enough of prior art existence, provides a 10kV that can improve maintenance efficiency joins in marriage electrified lifting mechanism of net twine way straightway three-phase wire.
In order to solve the technical problem, the utility model discloses a realize through following technical scheme:
a10 kV distribution network line straight-line section three-phase wire live lifter comprises an insulating square tube, a three-fork rope and three groups of pulley blocks; the pulley block comprises a fixed pulley, a movable pulley provided with a lifting hook, and an insulating pull rope wound and connected with the fixed pulley and the movable pulley; the middle part and two ends of the insulating square tube are respectively provided with a first connecting sleeve, and the upper end and the lower end of each first connecting sleeve are respectively provided with a connecting lug; the three connecting ends at the lower end of the three-fork rope are respectively connected with the upper connecting lugs of the three first connecting sleeves; and the fixed pulleys of the three groups of pulley blocks are respectively connected with connecting lugs at the lower ends of the three first connecting sleeves.
Preferably, the connecting device further comprises two second connecting sleeves symmetrically arranged at two ends of the insulating square pipe.
Preferably, the trifurcate rope is a DuPont wire trifurcate rope.
Preferably, the insulating square tube is made of epoxy resin glass reinforced plastic.
Preferably, the insulation pull rope is an insulation silk rope.
Compared with the prior art, the utility model has the advantages of as follows:
(1) the utility model provides a it is big with the electric body, the insulating range of shielding of grounding body, the operation space is narrow and small, the operation consumes long, the difficult problem of operation risk difficult control to reach and improve work efficiency, reduce the operation risk, alleviate operation personnel intensity of labour's purpose.
(2) In the past, the cross arm of the 10kV three-phase linear pole needs 87.8 minutes in average after being changed in an electrified way, and the utility model is adopted, the expected reduction of the operation time needs 40 minutes, the reduction exceeds 40 percent, and the work efficiency is greatly improved.
(3) The tower heightening and damaged linear tower replacing operation is carried out under the normal power supply state of the 10kV line, power supply loss caused by power failure operation is avoided, power supply reliability is improved, and the safe operation level of equipment is improved. Through adopting the utility model discloses, make and join in marriage that the net twine way disappears and lack, move pole transfer line and optimize and reform transform the engineering and become nimble, no longer be restricted to and can only have a power failure change shaft tower. Taking a 10kV distribution network line to replace a basic straight rod as an example, the nearest circuit breaker needs to be disconnected, 40 transformers needing power failure are calculated according to 500kW of equipment load, and the power failure operation needs 6 hours, so that 160 power failure hours are increased, and 3000kW. hours are reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: insulating square pipe 1, trident rope 2, fixed pulley 3, lifting hook 4, movable pulley 5, insulating stay cord 6, first adapter sleeve 7, engaging lug 8, second adapter sleeve 9.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention. In the following description, for the sake of clarity of illustrating the structure and operation of the present invention, reference will be made to the accompanying drawings by means of directional terms, but the terms "front", "rear", "left", "right", "up", "down", etc. should be construed as convenient terms and not as limitative terms.
The three-phase wire live lifter for the straight-line section of the 10kV distribution network line shown in the figure 1 comprises an insulating square tube, a three-fork rope and three groups of pulley blocks; the pulley block comprises a fixed pulley, a movable pulley provided with a lifting hook, and an insulating pull rope wound and connected with the fixed pulley and the movable pulley; the middle part and two ends of the insulating square tube are respectively provided with a first connecting sleeve, and the upper end and the lower end of each first connecting sleeve are respectively provided with a connecting lug; the three connecting ends at the lower end of the three-fork rope are respectively connected with the upper connecting lugs of the three first connecting sleeves; and the fixed pulleys of the three groups of pulley blocks are respectively connected with connecting lugs at the lower ends of the three first connecting sleeves.
In order to improve the applicability, the square insulating pipe further comprises two second connecting sleeves which are symmetrically arranged at two ends of the square insulating pipe. The pulley block can be installed on a proper connecting sleeve according to the distance between the three-phase wires, the use flexibility is improved, and the structure of the second connecting sleeve is the same as that of the first connecting sleeve.
In this embodiment, the trifurcate rope adopts dupont silk trifurcate rope. The insulating square tube is made of epoxy resin glass fiber reinforced plastics. The insulation pull rope is an insulation silk rope.
The first connecting sleeve is sleeved on the insulating square tube and can be fixed by screws or rivets. The three connecting ends of the three-fork rope are connected with the connecting lugs at the upper ends of the first connecting sleeves through shackles or bolts; the fixed pulley is connected with a connecting lug at the lower end of the first connecting sleeve through a shackle or a bolt.
The utility model discloses consider according to the biggest wire JKLYJ-240 insulated wire that probably runs into, perpendicular span is according to the 200m design, and perpendicular load 7.2kN, factor of safety get 2.5, the biggest promotion load 18 kN.
During the operation, trident rope top is fixed on the lifting hook of insulating bucket arm car lifting hook or crane, and three fixed insulating side of three link pipe points of trident rope lower extreme, and insulating assembly pulley links to each other through the connecting piece with insulating side's pipe, tightens up the haulage rope through ground personnel and produces traction force, promotes, puts arbitrary looks 10kV electrified wire, the promotion of electrified wire, prevent falling nimble fast, can improve the operating efficiency by a wide margin.
Taking the charged replacement of a 10kV distribution network line straight rod as an example, the operation steps are as follows:
(1) 2 join in marriage net live working staff and dress insulating protective apparatus, take insulating boom car and arrive the operation position, utilize the wire to shield cover, insulating blanket, live and shield 10kV and join in marriage electrified wire of net twine way three-phase, shaft tower ground connection part.
(2) Electrician mutually supported in 2 fill, join in marriage electrified lifting mechanism of net twine way straightway three-phase wire of 10kV installation in electrified lead suitable position, demolish sharp pole pin insulator ligature.
(3) And the ground electrician generates traction force by tightening the insulating pulley block to lift the any phase wire of the electrified 10kV line to a proper height.
(4) And the construction team demolishs the old tower and assembles the new tower.
(5) The electrician in the bucket shields the grounding body, the electrician on the ground loosens the insulating pulley block, the electrified lead falls onto the pin insulator, the electrician in the bucket fixes the lead, removes the related insulating shielding object, removes the 10kV distribution network line straight-line section three-phase lead electrified lifter, and the operation is finished.
In the beginning operation stage, when an operator electrically disconnects the connection point of the one-phase wire and the cross arm, the operator can quickly lift the connection point to a required height, so that the electrified wire is far away from a grounding body and an operation electrician, the requirement of the phase-to-phase distance after the wire is lifted is met, the operation space is enlarged, and the lifting can be carried out after the connection point of the three-phase wire and the cross arm is disconnected. In the recovery device phase, the requirement to drop any phase conductor is reached.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A10 kV distribution network line straight-line section three-phase wire live lifter comprises an insulating square tube, a three-fork rope and three groups of pulley blocks; the pulley block comprises a fixed pulley, a movable pulley provided with a lifting hook, and an insulating pull rope wound and connected with the fixed pulley and the movable pulley; the method is characterized in that: the middle part and two ends of the insulating square tube are respectively provided with a first connecting sleeve, and the upper end and the lower end of each first connecting sleeve are respectively provided with a connecting lug; the three connecting ends at the lower end of the three-fork rope are respectively connected with the upper connecting lugs of the three first connecting sleeves; and the fixed pulleys of the three groups of pulley blocks are respectively connected with connecting lugs at the lower ends of the three first connecting sleeves.
2. The 10kV distribution network line straight-section three-phase wire live lifting device of claim 1, characterized in that: the connecting device also comprises two second connecting sleeves symmetrically arranged at two ends of the insulating square pipe.
3. The 10kV distribution network line straight-section three-phase wire live lifter according to claim 1 or 2, characterized in that: the three-fork rope is a DuPont wire three-fork rope.
4. The 10kV distribution network line straight-section three-phase wire live lifter according to claim 1 or 2, characterized in that: the insulating square tube is made of epoxy resin glass fiber reinforced plastics.
5. The 10kV distribution network line straight-section three-phase wire live lifter according to claim 1 or 2, characterized in that: the insulation pull rope is an insulation silk rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920783128.8U CN209948529U (en) | 2019-05-28 | 2019-05-28 | Live lifting mechanism for three-phase lead of straight-line section of 10kV distribution network line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920783128.8U CN209948529U (en) | 2019-05-28 | 2019-05-28 | Live lifting mechanism for three-phase lead of straight-line section of 10kV distribution network line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209948529U true CN209948529U (en) | 2020-01-14 |
Family
ID=69134415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920783128.8U Active CN209948529U (en) | 2019-05-28 | 2019-05-28 | Live lifting mechanism for three-phase lead of straight-line section of 10kV distribution network line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209948529U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112117707A (en) * | 2020-10-22 | 2020-12-22 | 国网青海省电力公司海东供电公司 | 10kV joins in marriage net non-power-failure operation multipurpose wire lifting means |
| CN112366590A (en) * | 2020-10-30 | 2021-02-12 | 国网山东省电力公司青岛供电公司 | Replacing tool and replacing method for replacing horizontally-arranged strain pole cross arm in electrified mode |
-
2019
- 2019-05-28 CN CN201920783128.8U patent/CN209948529U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112117707A (en) * | 2020-10-22 | 2020-12-22 | 国网青海省电力公司海东供电公司 | 10kV joins in marriage net non-power-failure operation multipurpose wire lifting means |
| CN112366590A (en) * | 2020-10-30 | 2021-02-12 | 国网山东省电力公司青岛供电公司 | Replacing tool and replacing method for replacing horizontally-arranged strain pole cross arm in electrified mode |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107069562B (en) | Replacing insulator under electrified method and load transfer device | |
| CN209948529U (en) | Live lifting mechanism for three-phase lead of straight-line section of 10kV distribution network line | |
| CN102623926B (en) | Distant equipotential tackle and method for realizing charged equipotential access by using same | |
| CN102136693B (en) | Method and device for realizing long-distance equal electric potential access of winch hanging basket guide rail | |
| CN203352051U (en) | Insulation protective umbrella | |
| CN101888075A (en) | 10kV wire lifting operational method for insulating tool of crane | |
| CN201466574U (en) | Device for isoelectrically replacing insulator and accessory of iron tower of transmission line | |
| CN203859248U (en) | Short circuit grounding device used for overhead line maintenance | |
| CN206148848U (en) | Large -tonnage electrified conducting wire's hoisting device | |
| CN201440584U (en) | Ground potential replacement device for tension tower insulators and accessories in power transmission line | |
| CN201398034Y (en) | Electroscopy grounding device | |
| CN201234089Y (en) | Protective interval for live operation on 1000kV AC very high voltage line | |
| CN201466565U (en) | Wire lifting device of vehicle with insulating boom | |
| CN213243372U (en) | Control device for operation mode of sectional insulation line | |
| CN210779813U (en) | Special tool for adjusting sag of 220kV vertically-arranged double-bundle conductor in electrified manner | |
| CN203166445U (en) | Device using coupling ground line to reduce lightning trip-out rate of transmission line | |
| CN105932602B (en) | The method that three-phase conducting wire charges lifter and replaces insulator using the lifter | |
| CN201512370U (en) | Switch blade hoisting frame | |
| CN105449612A (en) | A conductive wire insulation support plate apparatus | |
| CN202258580U (en) | Wire incoming and outgoing rack for 110kV line strain composite insulator string | |
| CN219811753U (en) | Unmanned aerial vehicle auxiliary assembly and disassembly ground wire hook | |
| CN205335800U (en) | Wire insulated supporting plate device | |
| CN201178257Y (en) | Movable simple transforming apparatus | |
| CN111682479B (en) | Single-loop power transmission line iron tower and power transmission line tower system | |
| CN204835361U (en) | Electric power system overhead line work auxiliary assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |