CN105914646A - Live-line working method for replacing 35kV strain insulator strings - Google Patents

Live-line working method for replacing 35kV strain insulator strings Download PDF

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Publication number
CN105914646A
CN105914646A CN201610263583.6A CN201610263583A CN105914646A CN 105914646 A CN105914646 A CN 105914646A CN 201610263583 A CN201610263583 A CN 201610263583A CN 105914646 A CN105914646 A CN 105914646A
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CN
China
Prior art keywords
pieces
insulator
card
arm
suspension ring
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Granted
Application number
CN201610263583.6A
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Chinese (zh)
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CN105914646B (en
Inventor
章立
蒋建平
何星晔
洪明辉
冯雄伟
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State Grid Corp of China SGCC
State Grid Jiangsu Electric Power Co Ltd
Changzhou Power Supply Co of Jiangsu Electric Power Co
Original Assignee
State Grid Corp of China SGCC
State Grid Jiangsu Electric Power Co Ltd
Changzhou Power Supply Co of Jiangsu Electric Power Co
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Application filed by State Grid Corp of China SGCC, State Grid Jiangsu Electric Power Co Ltd, Changzhou Power Supply Co of Jiangsu Electric Power Co filed Critical State Grid Corp of China SGCC
Priority to CN201610263583.6A priority Critical patent/CN105914646B/en
Publication of CN105914646A publication Critical patent/CN105914646A/en
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Publication of CN105914646B publication Critical patent/CN105914646B/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/02Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables

Abstract

The invention provides a live-line working method for replacing 35kV strain insulator strings. The method, with a medium-potential method, utilizes an aerial lift device with insulating boom and special tools for live-line replacing 35kV strain insulator strings. The method is performed through the following steps: the entering of electrical men to the aerial lift device with insulating boom and insulation protection to the electrical men, the mounting of a special tool by the electrical men to live-line replace the 35kV strain insulator strings, the using of a special tool by the electrical men to take off the to-be-replaced insulator strings, using of a special tool by the electrical men to replace new insulator strings, using of a special tool by the electrical men to remove the special tool to replace new insulator strings and the removing of insulation protection. Simple in structure and cost effective, the method can raise the working efficiency and security while reducing manpower consumption. Absent from large moment, 35kV strain insulate strings can be live-line replaced.

Description

Charged for replacement 35kV strain insulator string operational method
Technical field
The present invention relates to a kind of charged for replacement 35kV strain insulator string operational method.
Background technology
Power circuit keeps insulation by insulator (string) with shaft tower.On tension-resistant rod, strain insulator string on the one hand wire to be kept and the insulation of shaft tower, on the other hand, the pulling force of wire to be born.On 35kV circuit, strain insulator string is typically made up of 3-5 sheet strain insulator, affected by electric field, outside climatic, insulator, it is possible that fault, loses insulating properties, becomes " zero resistance insulator ", if the zero resistance insulator in insulator chain exceedes the quantity of regulation, line security stable operation will be had a strong impact on, in order to ensure power circuit safe operation, need to be replaced by zero resistance insulator in time.35kV circuit is various because of its version, and electrical distance is shorter, and mechanical stress is relatively big, thus traditional replacing 35kV strain insulator string, mostly use power failure mode to utilize relevant aid to be replaced.
At present, the operational method of charged for replacement 35kV overhead distribution strain insulator has been shown in research, as the Chinese patent literature of Application No. 201310141812.3 i.e. discloses a kind of method, it uses the aids such as transfusion bottle hook assembly, wing type clamp apparatus and backup device, the mode utilizing spanner Manual tightening thread-tightening lead screw carries out the replacing of insulator chain, it has 2 deficiencies: one is that 35kV circuit stress is bigger, the moment of torsion that need to provide is bigger, bigger moment of torsion makes the operating personnel utilizing spanner Manual tightening thread-tightening lead screw expend bigger muscle power, and working performance is the highest;Two are to provide for bigger moment of torsion, operating personnel may be forced to use the spanner of long moment, but 35kV line security distance is less, and the operation amplitude not allowing operating personnel is excessive, the most easily causes security incident.
Up to the present, how to solve high-torque problem during charged for replacement 35kV strain insulator string, there is no suitable aid and operational method.
Summary of the invention
It is an object of the invention to: provide a kind of working performance height, safety is good, can effectively reduce the charged for replacement 35kV strain insulator string operational method of manpower consumption, utilize custom-designed charged for replacement 35kV strain insulator string specific purpose tool less important work, it is not necessary to provide high-torque can realize charged for replacement 35kV strain insulator string.
The technical scheme is that the charged for replacement 35kV strain insulator string operational method of the present invention, be characterized in: use intermediate potential method, utilize aerial lift device with insulated arm and charged for replacement 35kV strain insulator string specific purpose tool to implement;
Above-mentioned charged for replacement 35kV strain insulator string specific purpose tool includes front card, rear card, worm type of reduction gearing, thread-tightening lead screw, arm-tie and insulator chain bracket;
Above-mentioned front card includes body, the lock being movably arranged on body and 2 the bracket connecting rods being fixedly installed on body;Rear card includes card body, be fixedly installed on card body 2 suspension ring and 2 connecting bolts of arranging;Worm type of reduction gearing is provided with 2, and 2 worm type of reduction gearings block before being fixedly installed on;Thread-tightening lead screw is provided with 2;2 thread-tightening lead screws are respectively in transmission connection with 1 worm type of reduction gearing respectively;Arm-tie is provided with 2 pieces, and one end of 2 pieces of arm-ties is respectively the most fixing with 1 thread-tightening lead screw to be connected;2 connecting bolts that the other end of 2 pieces of arm-ties is arranged by rear card are fixing with the card body of rear card to be connected;
Insulator chain bracket includes the crosspiece of be arranged in parallel 2 pressure pins and be vertically and fixedly arranged between 2 pressure pins more than 2;Insulator chain bracket is by the bracket connecting rod grafting of one end of its 2 pressure pins Yu front card;On 2 suspension ring that the other end of 2 pressure pins blocks after being erected at;
Operational method comprises the following steps:
1. dress and meet operation electrician in the insulation bucket of the insulation clothing of 35kV line live-line work requirement, insulating boot, insulating glove and insulation safety cap and operate aerial lift device with insulated arm and enter setting electric field;According to first electrical body, rear grounding body principle and order from the near to the remote, from top to bottom, qualified wire mask, insulator cover, insulated target and the cross arm shielding cover of detection is used respectively wire, insulator, cross-arm to be carried out insulation and covered;
2. in bucket, operation electrician installs charged for replacement 35kV strain insulator string specific purpose tool: the body frame of front card be located on the strain clamp outside insulator chain to be changed;Rear card utilize its card body be erected on the insulator arm-tie inside insulator chain to be changed;The lock of card before plugging;Insulator chain bracket is arranged on the lower section of insulator chain to be changed;
3. insulator chain to be changed is taken off: in bucket, operation electrician utilizes 2 electric wrenches, and 2 worm type of reduction gearings of operation, tighten up thread-tightening lead screw until insulator chain to be changed does not stresses completely respectively, and insulator chain the most to be changed is placed on insulator chain bracket;Unclamp insulator chain and strain clamp and the connection of insulator arm-tie;Take off insulator chain to be changed;
The insulator chain the most more renewed: in bucket, new insulator chain is placed on insulator chain bracket by operation electrician;New insulator chain is connected with strain clamp and insulator arm-tie;Utilize 2 electric wrenches, 2 worm type of reduction gearings of reverse operating, thread-tightening lead screw is loosened until the complete stress of new insulator chain;
5. charged for replacement 35kV strain insulator string specific purpose tool is removed: in bucket, operation electrician is according to the orderly release charged for replacement 35kV strain insulator string specific purpose tool the most contrary with step;
6. remove insulation to cover: in bucket, operation electrician is covered according to the step orderly release insulation covering order contrary 1., fulfils assignment.
Further scheme is: the body of the front card of above-mentioned charged for replacement 35kV strain insulator string specific purpose tool is integrally made up of main part, 2 blocks of wing plates and 4 pieces of swash plates;Main part is integrally to be connected, by upper plate and 2 blocks of side plates, the component that the entirety formed is inverted U;The hollow part of main part constitutes mounting groove;The bottom of 2 blocks of side plates of main part is provided with lock spliced eye;Wing plate is the plate body part that entirety is rectangle, and wing plate is provided with 4 decelerator installing holes and 1 thread-tightening lead screw passes through hole;The structure of 2 blocks of wing plates is identical;2 blocks of wing plates respectively set 1 piece in the rear end, both sides of main part;Swash plate is the plate body part of triangle, and the center of swash plate is provided with manhole, passes through hole as bracket connecting rod;Swash plate is provided with 4 pieces that structure is identical;These 4 pieces of swash plates are the most each in the both sides of main part arranges 2 pieces, and 2 pieces of swash plates of main part phase the same side are connected with main part one by its triangle limit respectively;2 pieces of swash plates of main part phase the same side are connected with upper end and the lower end surface one of the wing plate being positioned at homonymy by another limit of its triangle respectively;2 blocks of wing plates and 4 pieces of swash plates are arranged in the lateral symmetry of main part;
Lock is the steel body of rod part that one end is provided with draw ring;In the lock spliced eye of 2 pieces of side plate bottoms that lock is plugged on the main part of body;
Bracket connecting rod includes the body of rod and union joint;The upper end of the body of rod is provided with the screw thread connected;Union joint is fixedly installed on the lower end of the body of rod;2 bracket bar linkage structures are identical;2 bracket connecting rods are held within 2 pieces of swash plates of upper end by lifting with nut respectively behind hole through the bracket connecting rod on the swash plate of body by its body of rod.
Further scheme is: the card body of the rear card of above-mentioned charged for replacement 35kV strain insulator string specific purpose tool is integrally made up of bridging portion, 2 suspension ring installation portions and 2 draw rod attachment part;The centre of bridging portion is provided with erection groove;Suspension ring installation portion is provided with 2 suspension ring installing holes;The structure of 2 suspension ring installation portions identical and bridging portion lateral symmetry arrange;Draw rod attachment part is provided with pull bar by hole and the bolt hole that intersected vertically by hole with pull bar;The structure of 2 draw rod attachment part is identical and the most each in the outer end of 2 suspension ring installation portions arranges 1;2 suspension ring installation portions and 2 draw rod attachment part are arranged in the lateral symmetry of bridging portion from inside to outside;
Suspension ring are steel U-shaped integral piece, and the upper end of suspension ring is provided with connection screw thread;2 suspension ring structures are identical;After 2 suspension ring are respectively passed 2 suspension ring installing holes on 1 suspension ring installation portion by its upper end, with nut each fixed installation 1 respectively on 2 suspension ring installation portions;
Matched with the bolt hole on draw rod attachment part through the pull bar on 2 draw rod attachment part of the card body of rear card by 2 connecting bolts of Kong Houyong in one end of 2 pieces of above-mentioned arm-ties, by one end of 2 pieces of arm-ties with after fasten and be connected.
Further scheme also has: the thread-tightening lead screw of above-mentioned charged for replacement 35kV strain insulator string specific purpose tool includes bar main body and union joint;Union joint 42 is equipped with bolt;2 thread-tightening lead screw structures are identical;2 thread-tightening lead screws are respectively in transmission connection with 1 worm type of reduction gearing by its bar main body respectively;2 thread-tightening lead screws are connected through each one end with 1 piece of arm-tie of head bolt respectively and fix and be connected.
The present invention has a positive effect: the charged for replacement 35kV strain insulator string operational method of the present invention, it is by utilizing charged for replacement 35kV strain insulator string specific purpose tool, use electric wrench to substitute artificial spanner during operation to have an effect, worm type of reduction gearing is driven to be converted to act on moment bigger on thread-tightening lead screw by less moment with electric wrench, realize stringing operation, and then carry out the replacing operation of strain insulator string, thus activity duration can be greatly decreased, reduce manpower consumption, improve work efficiency;Simultaneously by utilizing charged for replacement 35kV strain insulator string specific purpose tool operation, the effective insulation distance of specific purpose tool is more than minimum safe distance, it is possible to effective guarantee operating personnel's construction safety.
Accompanying drawing explanation
Fig. 1 is the structural representation of specific purpose tool used in the present invention;
Fig. 2 is the left view after the front card in Fig. 1 is flipped up an angle of 90 degrees;
Fig. 3 is the rear left view blocked after being flipped up an angle of 90 degrees in Fig. 1;
Fig. 4 is the structural representation of arm-tie in Fig. 1;
Fig. 5 be specific purpose tool used in the present invention when operation with the strain clamp of insulator chain side of wire to be dismounted and the annexation schematic diagram of the insulator arm-tie of cross-arm side.
Reference in above-mentioned accompanying drawing is as follows:
Front card 1, body 11, main part 11-1, mounting groove 11-1-1, wing plate 11-2, decelerator installing hole 11-2-1, thread-tightening lead screw passes through hole 11-2-2;Swash plate 11-3, lock 12, bracket connecting rod 13, body of rod 13-1, union joint 13-2;
Rear card 2, card body 21, bridging portion 21-1, set up groove 21-1-1, suspension ring installation portion 21-2, draw rod attachment part 21-3, pull bar pass through hole 21-3-1, suspension ring 22, connecting bolt 23,
Worm type of reduction gearing 3,
Thread-tightening lead screw 4, bar main body 41, union joint 42,
Arm-tie 5, connecting hole 51,
Insulator chain bracket 6;Pressure pin 61, crosspiece 62,
Insulator chain 7, strain clamp 8, insulator arm-tie 9.
Detailed description of the invention
The present invention is further detailed explanation with detailed description of the invention below in conjunction with the accompanying drawings.
(embodiment 1)
The charged for replacement 35kV strain insulator string operational method of the present embodiment, uses intermediate potential method, utilizes aerial lift device with insulated arm and charged for replacement 35kV strain insulator string specific purpose tool to implement operation.
See Fig. 1, charged for replacement 35kV strain insulator string specific purpose tool mainly by front card 1, block 2, worm type of reduction gearing 3, thread-tightening lead screw 4, arm-tie 5 and insulator chain bracket 6 afterwards and form.
Seeing Fig. 2, front card 1 is mainly made up of body 11, lock 12 and bracket connecting rod 13.
The material of body 11 is aluminium alloy;Body 11 is anodized the integral piece of process for surface, and the surface of body 11 carries out anodization, and the performances such as its corrosion resistance, wearability, insulating properties, thermostability and hardness can be greatly improved;Body 11 is integrally made up of main part 11-1,2 pieces of wing plate 11-2 and 4 pieces of swash plate 11-3;Main part 11-1 is integrally to be connected, by upper plate and 2 blocks of side plates, the component that the entirety formed is inverted U;The hollow part of main part 11-1 constitutes mounting groove 11-1-1;The bottom of 2 blocks of side plates of main part 11-1 is provided with lock spliced eye;Wing plate 11-2 is the plate body part that entirety is rectangle, and wing plate 11-2 is provided with 4 decelerator installing hole 11-2-1 and 1 thread-tightening lead screw by hole 11-2-2;The structure of 2 pieces of wing plate 11-2 is identical;2 pieces of wing plate 11-2 respectively set 1 piece in the rear end, both sides of main part 11-1;Swash plate 11-3 is the plate body part of triangle, and the center of swash plate 11-3 is provided with manhole, passes through hole as bracket connecting rod;Swash plate 11-3 is provided with 4 pieces that structure is identical;These 4 pieces of swash plate 11-3 are the most each in the both sides of main part 11-1 arranges 2 pieces, and 2 pieces of swash plate 11-3 of phase the same side of main part 11-1 are connected with main part 11-1 one by its triangle limit respectively;In 2 pieces of swash plate 11-3 of phase the same side of main part 11-1 1 piece is connected with the upper end one of the wing plate 11-2 being positioned at homonymy by another limit of its triangle;Another 1 piece in 2 pieces of swash plate 11-3 of phase the same side of main part 11-1 is connected with the lower end surface one of the wing plate 11-2 being positioned at homonymy by another limit of its triangle;2 pieces of wing plate 11-2 and 4 pieces of swash plate 11-3 are in the both sides of main part 11-1 symmetrically structure.
Lock 12 is provided with the steel body of rod part of draw ring for one end;In the lock spliced eye of 2 pieces of side plate bottoms that lock 12 is plugged on the main part 11-1 of body 11.
Bracket connecting rod 13 is made up of body of rod 13-1 and union joint 13-2;The upper end of body of rod 13-1 is provided with the screw thread connected;Union joint 13-2 is fixedly installed on the lower end of body of rod 13-1;Bracket connecting rod 13 is provided with 2 that structure is identical, and 2 bracket connecting rods 13 are held within 2 pieces of swash plate 11-3 of upper end by lifting with nut respectively behind hole through the bracket connecting rod on swash plate 11-3 by its body of rod 13-1.
Seeing Fig. 3, rear card 2 is mainly made up of card body 21, suspension ring 22 and connecting bolt 23.
The material of card body 21 is aluminium alloy;Card body 21 is anodized the integral piece of process for surface;Card body 21 is integrally made up of bridging portion 21-1,2 suspension ring installation portion 21-2 and 2 draw rod attachment part 21-3;The centre of bridging portion 21-1 is provided with erection groove 21-1-1;Suspension ring installation portion 21-2 is provided with 2 suspension ring installing holes;The structure of 2 suspension ring installation portion 21-2 identical and bridging portion 21-1 lateral symmetry arrange;Draw rod attachment part 21-3 is provided with pull bar by hole 21-3-1 and the bolt hole that intersected vertically by hole 21-3-1 with pull bar;The structure of 2 draw rod attachment part 21-3 is identical and arranges 1 the outer end of 2 suspension ring installation portion 21-2 is the most each;2 suspension ring installation portion 21-2 and 2 draw rod attachment part 21-3 are arranged in the lateral symmetry of bridging portion 21-1 from inside to outside.
Suspension ring 22 are steel U-shaped integral piece, and the upper end of suspension ring 22 is provided with connection screw thread;Suspension ring 22 are provided with 2 that structure is identical;After 2 suspension ring 22 are respectively passed 2 suspension ring installing holes on 1 suspension ring installation portion 21-2 by its upper end, with nut each fixed installation 1 respectively on 2 suspension ring installation portion 21-2.
Connecting bolt 23 is provided with 2, and connecting bolt 23 matches with the bolt hole on 2 draw rod attachment part 21-3 of card body 21, for fixing one end connecting arm-tie 5.
Still see that Fig. 1, worm type of reduction gearing 3 are provided with identical 2;2 the most each each fixed installations 1 respectively on 2 pieces of wing plate 11-2 of the body 11 of front card 1 with 4 bolts of worm type of reduction gearing 3;Worm type of reduction gearing 3 for being converted to act on moment bigger on thread-tightening lead screw 4 by less moment, thus realizes stringing operation, and then carries out the replacing of strain insulator string.
Thread-tightening lead screw 4 is made up of bar main body 41 and union joint 42, and union joint 42 is equipped with bolt.Thread-tightening lead screw 4 is provided with identical 2;2 thread-tightening lead screws 4 are respectively in transmission connection with 1 worm type of reduction gearing 3 by its bar main body 41 respectively;The union joint 42 of thread-tightening lead screw 4 is used for connecting arm-tie 5.
Seeing Fig. 4, the material of arm-tie 5 is 3240 epoxy phenolic laminated glass fabric plates;Arm-tie 5 is rectangular plate body part;Arm-tie 5 is provided with the connecting hole 51 of more than 3, arranges and blocks the spacing between 2 and front card 1 according to after the convenient regulation of practical situation when the purpose of multiple connecting hole 51 is to use;Arm-tie 5 is provided with 2 pieces that structure is identical;One end of 2 pieces of arm-ties 5 is respectively the most fixing with the union joint 42 cooperation bolt of 1 thread-tightening lead screw 4 to be connected;The other end of 2 pieces of arm-ties 5 is protruding after respectively passing through hole 21-3-1 through the pull bar of 2 draw rod attachment part 21-3 of the card body 21 of rear card 2, and is respectively connected with 1 connecting bolt 23 is fixing with 2 draw rod attachment part 21-3 of the card body 21 of rear card 2.
Still see that Fig. 1, the material of insulator chain bracket 6 are 3640 epoxy novolac laminated glass stringings;Insulator chain bracket 6 is made up of the crosspiece 62 of 2 pressure pins 61 and more than 2;2 pressure pins 61 be arranged in parallel;Each crosspiece 62 is vertically and fixedly arranged between 2 pressure pins 61;Insulator chain bracket 6 is by the union joint 13-2 grafting of one end of its 2 pressure pins 61 Yu the bracket connecting rod 13 of front card 1;The other end of 2 pressure pins 61, through protruding after 2 suspension ring 22 of rear card 2, and makes 2 pressure pins 61 be erected on 2 suspension ring 22.Insulator chain 7 when insulator chain bracket 6 is for lifting not load.
See Fig. 5, the charged for replacement 35kV strain insulator string operational method of the present embodiment, specifically include following steps:
1. dress and meet operation electrician in the insulation bucket of the insulation clothing of 35kV line live-line work requirement, insulating boot, insulating glove and insulation safety cap and operate aerial lift device with insulated arm and make insulation bucket progress into setting electric field;According to first electrical body, rear grounding body principle and order from the near to the remote, from top to bottom, qualified wire mask, insulator cover, insulated target and the cross arm shielding cover of detection is used respectively wire, insulator, cross-arm to be carried out insulation and covered;
2. in bucket, operation electrician installs charged for replacement 35kV strain insulator string specific purpose tool: front card 1 utilizes the mounting groove 11-1-1 of the main part 11-1 of its body 11 be erected on the strain clamp outside insulator chain 7 to be changed;The erection groove 21-1-1 that rear card 2 utilizes bridging portion 21-1 of its card body 21 is erected on the insulator arm-tie 9 inside insulator chain 7 to be changed;The lock 12 of card 1 before plugging;It is connected fixing with the union joint 13-2 of the bracket connecting rod 13 of front card 1 for one end of 2 pressure pins 61 of insulator chain bracket 6;Block after the other end of 2 pressure pins 61 of insulator chain bracket 6 is inserted in 2 suspension ring 22 of 2, and make insulator chain bracket 6 be positioned at the lower section of insulator chain 7 to be changed;
3. insulator chain to be changed is taken off: in bucket, operation electrician utilizes 2 electric wrenches, 2 worm type of reduction gearings 3 of operation respectively, being tightened up by thread-tightening lead screw 4 until insulator chain 7 to be changed does not stresses completely, insulator chain 7 the most to be changed is placed on insulator chain bracket 6;Unclamp insulator chain and strain clamp 8 and the connection of insulator arm-tie 9;Take off insulator chain 7 to be changed;
The insulator chain the most more renewed: in bucket, new insulator chain 7 is placed on insulator chain bracket 6 by operation electrician;New insulator chain 7 is connected with strain clamp 8 and insulator arm-tie 9;Utilize 2 electric wrenches, 2 worm type of reduction gearings 3 of reverse operating, thread-tightening lead screw 4 is loosened until the new complete stress of insulator chain 7;
5. charged for replacement 35kV strain insulator string specific purpose tool is removed: in bucket, operation electrician is according to the orderly release charged for replacement 35kV strain insulator string specific purpose tool the most contrary with step;
6. remove insulation to cover: in bucket, operation electrician is covered according to the step orderly release insulation covering order contrary 1., fulfils assignment.
Above example is the explanation of the detailed description of the invention to the present invention; rather than limitation of the present invention; person skilled in the relevant technique is without departing from the spirit and scope of the present invention; can also make various conversion and change and obtain the technical scheme of corresponding equivalent, the technical scheme of the most all equivalents all should be included into the scope of patent protection of the present invention.

Claims (4)

1. a charged for replacement 35kV strain insulator string operational method, it is characterised in that: use intermediate potential method, utilize aerial lift device with insulated arm and charged for replacement 35kV strain insulator string specific purpose tool to implement;
Described charged for replacement 35kV strain insulator string specific purpose tool includes front card (1), rear card (2), worm type of reduction gearing (3), thread-tightening lead screw (4), arm-tie (5) and insulator chain bracket (6);
Described front card (1) includes body (11), be movably arranged on body (11) lock (12) and 2 the bracket connecting rods (13) being fixedly installed on body (11);Rear card (2) includes card body (21), be fixedly installed on card body (21) 2 suspension ring (22) and 2 connecting bolts (23) arranged;Worm type of reduction gearing (3) is provided with 2, and 2 worm type of reduction gearings (3) are fixedly installed on front card (1);Thread-tightening lead screw (4) is provided with 2;2 thread-tightening lead screws (4) are respectively in transmission connection with 1 worm type of reduction gearing (3) respectively;Arm-tie (5) is provided with 2 pieces, and one end of 2 pieces of arm-ties (5) is respectively the most fixing with 1 thread-tightening lead screw (4) to be connected;2 connecting bolts (23) that the other end of 2 pieces of arm-ties (5) is arranged by rear card (2) are fixing with the card body (21) of rear card (2) to be connected;
Insulator chain bracket (6) includes the crosspiece (62) of be arranged in parallel 2 pressure pins (61) and be vertically and fixedly arranged between 2 pressure pins (61) more than 2;Insulator chain bracket (6) is by bracket connecting rod (13) grafting of one end of its 2 pressure pins (61) Yu front card (1);The other end of 2 pressure pins (61) blocks after being erected on 2 suspension ring (22) of (2);
Operational method comprises the following steps:
1. dress and meet operation electrician in the insulation bucket of the insulation clothing of 35kV line live-line work requirement, insulating boot, insulating glove and insulation safety cap and operate aerial lift device with insulated arm and enter setting electric field;According to first electrical body, rear grounding body principle and order from the near to the remote, from top to bottom, qualified wire mask, insulator cover, insulated target and the cross arm shielding cover of detection is used respectively wire, insulator, cross-arm to be carried out insulation and covered;
2. in bucket, operation electrician installs charged for replacement 35kV strain insulator string specific purpose tool: be erected on the strain clamp outside insulator chain to be changed by the body (11) of front card (1);Its card body (21) is utilized to be erected on the insulator arm-tie inside insulator chain to be changed on rear card (2);Plug the lock (12) of front card (1);Insulator chain bracket (6) is arranged on the lower section of insulator chain to be changed;
3. insulator chain to be changed is taken off: in bucket, operation electrician utilizes 2 electric wrenches, 2 worm type of reduction gearings (3) of operation respectively, being tightened up by thread-tightening lead screw (4) until insulator chain to be changed does not stresses completely, insulator chain the most to be changed is placed on insulator chain bracket (6);Unclamp insulator chain and strain clamp and the connection of insulator arm-tie;Take off insulator chain to be changed;
The insulator chain the most more renewed: in bucket, new insulator chain is placed on insulator chain bracket (6) by operation electrician;New insulator chain is connected with strain clamp and insulator arm-tie;Utilize 2 electric wrenches, 2 worm type of reduction gearings (3) of reverse operating, thread-tightening lead screw (4) is loosened until the complete stress of new insulator chain;
5. charged for replacement 35kV strain insulator string specific purpose tool is removed: in bucket, operation electrician is according to the orderly release charged for replacement 35kV strain insulator string specific purpose tool the most contrary with step;
6. remove insulation to cover: in bucket, operation electrician is covered according to the step orderly release insulation covering order contrary 1., fulfils assignment.
Charged for replacement 35kV strain insulator string operational method the most according to claim 1, it is characterised in that: the body (11) of the front card (1) of described charged for replacement 35kV strain insulator string specific purpose tool is made up of main part (11-1), 2 pieces of wing plates (11-2) and 4 pieces of swash plate (11-3) one;Main part (11-1) is for integrally to be connected, by upper plate and 2 blocks of side plates, the component that the entirety formed is inverted U;The hollow part of main part (11-1) constitutes mounting groove (11-1-1);The bottom of 2 blocks of side plates of main part (11-1) is provided with lock spliced eye;Wing plate (11-2) is the overall plate body part being rectangle, and wing plate (11-2) is provided with 4 decelerator installing holes (11-2-1) and 1 thread-tightening lead screw by hole (11-2-2);The structure of 2 pieces of wing plates (11-2) is identical;2 pieces of wing plates (11-2) respectively set 1 piece in the rear end, both sides of main part (11-1);Swash plate (11-3) is the plate body part of triangle, and the center of swash plate (11-3) is provided with manhole, passes through hole as bracket connecting rod;Swash plate (11-3) is provided with 4 pieces that structure is identical;These 4 pieces of swash plates (11-3) are the most each in the both sides of main part (11-1) arranges 2 pieces, and 2 pieces of swash plates (11-3) of main part (11-1) phase the same side are connected with main part (11-1) one by its triangle limit respectively;2 pieces of swash plates (11-3) of main part (11-1) phase the same side are connected with upper end and the lower end surface one of the wing plate (11-2) being positioned at homonymy by another limit of its triangle respectively;2 pieces of wing plates (11-2) and 4 pieces of swash plates (11-3) are arranged in the lateral symmetry of main part (11-1);
Lock (12) is the steel body of rod part that one end is provided with draw ring;In the lock spliced eye of 2 pieces of side plate bottoms that lock (12) is plugged on the main part (11-1) of body (11);
Bracket connecting rod (13) includes the body of rod (13-1) and union joint (13-2);The upper end of the body of rod (13-1) is provided with the screw thread connected;Union joint (13-2) is fixedly installed on the lower end of the body of rod (13-1);2 bracket connecting rod (13) structures are identical;2 bracket connecting rods (13) are held within 2 pieces of swash plates (11-3) of upper end by lifting with nut respectively behind hole through the bracket connecting rod on the swash plate (11-3) of body (11) by its body of rod (13-1).
Charged for replacement 35kV strain insulator string operational method the most according to claim 1, it is characterised in that: the card body (21) of the rear card (2) of described charged for replacement 35kV strain insulator string specific purpose tool is made up of bridging portion (21-1), 2 suspension ring installation portions (21-2) and 2 draw rod attachment part (21-3) one;The centre of bridging portion (21-1) is provided with erection groove (21-1-1);Suspension ring installation portion (21-2) is provided with 2 suspension ring installing holes;The structure of 2 suspension ring installation portions (21-2) identical and bridging portion (21-1) lateral symmetry arrange;Draw rod attachment part (21-3) is provided with pull bar and passes through hole (21-3-1) and the bolt hole intersected vertically by hole (21-3-1) with pull bar;The structure of 2 draw rod attachment part (21-3) is identical and arranges 1 the outer end of 2 suspension ring installation portions (21-2) is the most each;2 suspension ring installation portions (21-2) and 2 draw rod attachment part (21-3) are arranged in the lateral symmetry of bridging portion (21-1) from inside to outside;
Suspension ring (22) are steel U-shaped integral piece, and the upper end of suspension ring (22) is provided with connection screw thread;2 suspension ring (22) structures are identical;After 2 suspension ring (22) are respectively passed 2 suspension ring installing holes on 1 suspension ring installation portion (21-2) by its upper end, with nut in the upper each fixed installation 1 respectively of 2 suspension ring installation portions (21-2);
Being matched with the bolt hole on draw rod attachment part (21-3) with 2 connecting bolts (23) through the pull bar on 2 draw rod attachment part (21-3) of the card body (21) of rear card (2) afterwards by hole (21-3-1) in one end of 2 pieces of described arm-ties (5), is connected fixing to one end of 2 pieces of arm-ties (5) and rear card (2).
Charged for replacement 35kV strain insulator string operational method the most according to claim 1, it is characterised in that: the thread-tightening lead screw (4) of described charged for replacement 35kV strain insulator string specific purpose tool includes bar main body (41) and union joint (42);Union joint 42 is equipped with bolt;2 thread-tightening lead screw (4) structures are identical;2 thread-tightening lead screws (4) are respectively in transmission connection with 1 worm type of reduction gearing (3) by its bar main body (41) respectively;2 thread-tightening lead screws (4) are connected through each one end with 1 piece of arm-tie (5) of head (42) bolt respectively and fix and be connected.
CN201610263583.6A 2016-04-26 2016-04-26 Charged for replacement 35kV strain insulator string operational methods Active CN105914646B (en)

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CN201610263583.6A CN105914646B (en) 2016-04-26 2016-04-26 Charged for replacement 35kV strain insulator string operational methods
CN201810625737.0A CN108847612A (en) 2016-04-26 2016-04-26 The specific purpose tool of charged for replacement 35kV strain insulator string

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CN106532561A (en) * 2016-12-06 2017-03-22 国网四川省电力公司技能培训中心 Centrifuging clamping apparatus with backup protection
CN111276899A (en) * 2020-03-05 2020-06-12 国网湖北省电力有限公司检修公司 Special fixture for robot for live replacement of strain insulator single sheet of extra-high voltage line

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CN111446682B (en) * 2020-03-30 2021-03-09 国网福建省电力有限公司厦门供电公司 Limiting device

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CN106532561A (en) * 2016-12-06 2017-03-22 国网四川省电力公司技能培训中心 Centrifuging clamping apparatus with backup protection
CN111276899A (en) * 2020-03-05 2020-06-12 国网湖北省电力有限公司检修公司 Special fixture for robot for live replacement of strain insulator single sheet of extra-high voltage line

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CN108847612A (en) 2018-11-20
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