CN109672111B - Combined tool and method for replacing direct current grounding electrode line strain insulator string by horizontal rotation method - Google Patents
Combined tool and method for replacing direct current grounding electrode line strain insulator string by horizontal rotation method Download PDFInfo
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- CN109672111B CN109672111B CN201910110170.8A CN201910110170A CN109672111B CN 109672111 B CN109672111 B CN 109672111B CN 201910110170 A CN201910110170 A CN 201910110170A CN 109672111 B CN109672111 B CN 109672111B
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000012211 strain insulator Substances 0.000 title claims description 15
- 230000005540 biological transmission Effects 0.000 claims description 42
- 238000010276 construction Methods 0.000 claims description 16
- 238000009413 insulation Methods 0.000 claims description 13
- 230000005484 gravity Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
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- 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
Abstract
The combined tool comprises a cross arm side yoke plate card and a wire side yoke plate card, wherein an upper anti-torsion screw rod and a lower anti-torsion screw rod are correspondingly inserted into the upper end and the lower end of the cross arm side yoke plate card respectively, the upper anti-torsion screw rod is connected with the upper end of the wire side yoke plate card through an upper insulating pull rod, and the lower anti-torsion screw rod is connected with the lower end of the wire side yoke plate card through a lower insulating pull rod; the rotary hanging bracket assembly comprises a bracket seat, a supporting shaft, a fixed connecting rod, a sleeve and a cross tube, wherein the lower end of the supporting shaft is inserted into the bracket seat, the upper end of the supporting shaft is connected with one end of the fixed connecting rod, the other end of the fixed connecting rod is connected with the upper end of the cross arm side connecting plate clamp, the sleeve is rotatably sleeved on the supporting shaft, the cross arm end of the cross tube is connected with the sleeve, the wire end of the cross tube can extend to the position above the wire end of the tension string, and the tripod assembly which can be connected with the bottle supporting frame is hung at the lower end of the supporting shaft; the combination tool can be used for replacing the tension string of the direct current grounding electrode circuit. The method is suitable for line maintenance.
Description
Technical Field
The invention relates to the field of high-voltage direct current, in particular to a combined tool and a method for replacing a direct current grounding electrode line strain insulator string by a horizontal rotation method.
Background
The high-voltage direct-current transmission has unique advantages in the aspect of long-distance and high-power electric energy transmission compared with an alternating-current transmission mode, so that the high-voltage direct-current transmission method is widely applied to high-capacity and ultra-long-distance point-to-point electric power transmission, such as the mode of widely adopting high-voltage direct-current transmission in the east of western hydropower station, jiangsu, shanghai and the like. The live working of the current direct current transmission system is mainly concentrated on a direct current high-voltage line and a converter station, and the direct current grounding electrode line is lack of deep research, so that the live working of the direct current grounding electrode line is lack of theoretical basis and practical experience. When the strain insulator string (namely the strain insulator string) of the grounding electrode circuit needs to be replaced, power failure operation can only be generally adopted, and the operation of a direct current system can be greatly influenced at the moment, so that the power supply reliability is directly reduced.
In addition, when the high-voltage direct-current circuit is in the bipolar operation mode, the potential of the direct-current grounding electrode circuit is ground potential, and when the high-voltage direct-current circuit is in the monopolar operation mode, the grounding electrode circuit has higher voltage, and the voltage level of the grounding electrode circuit is generally regarded as +/-50 kV in actual operation. The DC grounding electrode circuit has a similar insulation configuration as the distribution circuit because of a lower voltage level, and has a much larger current carrying capacity than the distribution circuit, and the conducting wires are significantly different from the distribution circuit. Therefore, when the strain insulator string is replaced, the tools and methods for live working of the direct current grounding electrode line cannot be simply used along the distribution line or the power transmission line.
Disclosure of Invention
The invention aims to overcome the defects of the background technology and provides a combined tool and a method for replacing a direct current grounding electrode line strain insulator string by a horizontal rotation method.
In order to achieve the above purpose, the invention provides a combined tool for replacing a direct current grounding electrode line tension string by a horizontal rotation method, which comprises a cross arm side yoke plate card fixedly clamped on the bottom edge of a cross arm side triangular yoke plate, a wire side yoke plate card fixedly clamped on the wire side yoke plate and a rotary hanger assembly;
the cross arm side yoke plate card is vertically arranged with the cross arm side triangular yoke plate, the wire side yoke plate card is vertically arranged with the wire side yoke plate, an upper anti-torsion screw rod and a lower anti-torsion screw rod are correspondingly inserted into the upper end and the lower end of the cross arm side yoke plate card respectively, the upper anti-torsion screw rod is connected with the upper end of the wire side yoke plate card through an upper insulating pull rod, and the lower anti-torsion screw rod is connected with the lower end of the wire side yoke plate card through a lower insulating pull rod;
the rotary hanging bracket assembly comprises a bracket seat, a supporting shaft, a fixed connecting rod, a sleeve and a transverse tube, wherein the bracket seat can be fixedly clamped on one waist edge of the cross arm side triangular yoke plate, the lower end of the supporting shaft is inserted in the bracket seat, the upper end of the supporting shaft is connected with one end of the fixed connecting rod, the other end of the fixed connecting rod is connected with the upper end of the cross arm side yoke plate card, the sleeve is rotatably sleeved on the supporting shaft, the cross arm end of the transverse tube is connected with the sleeve, the wire end of the transverse tube can extend to the upper side of the wire end of the tension string, and the lower end of the supporting shaft is hung with the tripod assembly which can be connected with the bottle supporting frame.
The tension on the tension string can be transferred to the cross arm side yoke plate card, the upper anti-torsion screw rod, the lower anti-torsion screw rod, the upper insulating pull rod, the lower insulating pull rod and the wire side yoke plate card through the two stress points of the cross arm side yoke plate card and the wire side yoke plate card, so that the replacement of the tension string can be realized; meanwhile, the tripod assembly additionally arranged is matched with the transverse tube, so that the bottle supporting frame can be mounted, the rotary hanging frame assembly is matched, the bottle supporting frame can horizontally rotate, the tension string can horizontally rotate, the old tension string can be lowered and the new tension string can be raised, the old tension string can be detached and the new tension string can be mounted conveniently, and time and labor are saved.
In the above scheme, tripod subassembly includes triangle-shaped structure's tripod and hoist and mount screw rod, but the base both ends of tripod outwards extend respectively and are equipped with the plug-in on holding in the palm the bottle, the outer end of plug-in is equipped with set screw, hoist and mount screw rod's lower extreme with the apex angle of tripod links to each other, hoist and mount screw rod's upper end is equipped with the external screw thread, hoist and mount screw rod's upper end runs through from down supreme the frame foundation and through the fixed hoist and mount of screw thread mode be in on the lower extreme of back shaft. The connection plug and the fixing screw are additionally arranged, so that the tripod assembly is convenient to connect with the bottle supporting frame.
In the scheme, the insulating plate which can be connected with the bottle supporting frame is hung at the wire end of the transverse tube. The added insulating plate can enable the bottle supporting frame to be in a horizontal state after being installed.
In the above scheme, the lower end of the insulating plate and the bottom edge of the tripod assembly are located at the same horizontal height. The lower end of the insulating plate and the bottom edge of the tripod assembly are designed to be positioned at the same horizontal height, so that the bottle supporting frame can be in a horizontal state after being installed.
In the above scheme, the cross arm side yoke plate card includes the cross arm side yoke plate card body, but the middle part of cross arm side yoke plate card body is equipped with the clamping and is in the cross arm side U type clamping portion on the bottom edge of cross arm side triangle yoke plate, but the open end of cross arm side U type clamping portion is equipped with the cartridge in the cross arm side fixing bolt in the construction hole on the bottom edge of cross arm side triangle yoke plate, the both ends of cross arm side yoke plate card body are equipped with the lead screw cartridge mouth that is used for the cartridge anti-torsion lead screw respectively. The U-shaped clamping part on the side of the cross arm is additionally arranged, so that the mounting of the cross arm side yoke plate clamp is facilitated.
In the above scheme, the wire side yoke plate card includes wire side yoke plate card body, but the middle part of wire side yoke plate card body is equipped with the wire side U type clamping portion that the clamping was in on one side of wire side yoke plate, but the open end of wire side U type clamping portion is equipped with the cartridge in wire side fixing bolt in the construction hole on one side of wire side yoke plate, the both ends of wire side yoke plate card body are equipped with the pull rod connector that is used for connecting insulating pull rod respectively. The U-shaped clamping part on the wire side is additionally arranged, so that the wire side yoke plate card is convenient to install.
The scheme also comprises a transverse tube diagonal brace which is obliquely arranged, wherein the upper end of the transverse tube diagonal brace is connected with the middle part of the transverse tube, and the lower end of the transverse tube diagonal brace is connected with the sleeve. The added cross tube diagonal brace can greatly increase the bearing capacity of the cross tube.
In the above scheme, the top surface of the sleeve abuts against the bottom surface of the fixed connecting rod, and the bottom surface of the sleeve abuts against the top surface of the stand.
In the scheme, the distance between the frame base and the transverse tube is larger than the radius of the umbrella disc of the tension string. The distance between the frame base and the transverse tube is designed to be larger than the radius of the umbrella disc of the tension string, so that interference between the tool and the tension string can be avoided.
The invention also provides a method for replacing the direct current grounding electrode line strain insulator string by the horizontal rotation method, which comprises the following steps:
1) The ground potential electrician climbs to the ground potential electrician working position of the pole tower, the ground potential electrician installs the pole tower fixed pulley on the pole tower and wears the pole tower side transmission rope on the pole tower fixed pulley;
2) The first ground electrician transmits the insulation operating rod and the wire fixed pulley which is threaded with the wire side transmission rope to the ground potential electrician through the tower side transmission rope, and the ground potential electrician hangs the wire fixed pulley at the position corresponding to the wire end of the old tension string on the wire through the insulation operating rod;
3) The second ground electrician ties the end part of the insulating rope ladder by using a wire side transmission rope, and installs the insulating rope ladder on a wire at the equipotential electrician working position by using the wire side transmission rope;
4) After the equipotential electrician wears the shielding clothes and confirms that the shielding clothes are well connected, the insulating rope ladder climbs to a position which is more than 0.2m away from the lead to transfer potential, and the equipotential electrician enters an equipotential working position;
5) The first ground electrician assembles the upper anti-torsion screw rod, the lower anti-torsion screw rod and the cross arm side yoke plate card, assembles the tripod assembly and the rotary hanging bracket assembly, and transmits the assembled upper anti-torsion screw rod, the assembled lower anti-torsion screw rod and the cross arm side yoke plate card, the assembled tripod assembly and the assembled rotary hanging bracket assembly, the upper insulating pull rod and the lower insulating pull rod to the ground potential electrician together through a tower side transmission rope, and the second ground electrician transmits the wire side yoke plate card and the insulating plate to the equipotential electrician through a wire side transmission rope;
6) The ground potential electrician fixedly clamps the cross arm side connecting plate clamp at a construction hole in the middle of the bottom edge of the cross arm side triangular connecting plate, connects one end of the upper insulating pull rod with the upper anti-torsion screw rod, connects one end of the lower insulating pull rod with the lower anti-torsion screw rod, fixedly clamps the frame base on the waist edge of the cross arm side triangular connecting plate corresponding to the old tension string, and then connects the fixed connecting rod with the upper end of the cross arm side connecting plate clamp by the ground potential electrician; meanwhile, the equipotential electrician fixedly clamps the lead side yoke plate card at a construction hole in the middle of the side edge of the lead side yoke plate; finally, the ground potential electrician and the equipotential electrician cooperate to connect the other end of the upper insulating pull rod with the upper end of the wire side joint board card, connect the other end of the lower insulating pull rod with the lower end of the wire side joint board card, and then connect the upper end of the insulating board with the wire end of the transverse tube;
7) The bottle supporting frame is transmitted to a ground potential electrician and an equipotential electrician through a tower side transmission rope and a wire side transmission rope by the first ground electrician and the second ground electrician, one end of the bottle supporting frame is connected with the tripod assembly by the ground potential electrician, and the other end of the bottle supporting frame is connected with the lower end of the insulating plate by the equipotential electrician, so that the bottle supporting frame is in a horizontal state;
8) The ground potential electrician tightens the upper anti-torsion screw rod and the lower anti-torsion screw rod, and transfers the tension on the old tension string to the cross arm side yoke plate card, the upper anti-torsion screw rod, the lower anti-torsion screw rod, the upper insulating pull rod, the lower insulating pull rod and the wire side yoke plate card;
9) After the bearing tool is checked to be stressed normally, the equipotential electrician takes out the locking pin of the old tension string wire end, and continues to tighten the anti-torsion screw rod until the equipotential electrician breaks away from the connection of the old tension string wire end, and at the moment, the old tension string falls onto the bottle supporting frame under the action of gravity;
10 The ground potential electrician rotates the rotary hanging bracket assembly to rotate the old tension string to the cross arm part along the horizontal direction;
11 The ground potential electrician fastens one end of the transmission rope at the side of the tower to the old tension string and takes out the locking pin at the cross arm end of the old tension string;
12 The first ground electrician fastens the other end of the transmission rope at the side of the pole tower to a new tension string;
13 A first ground electrician operating tower side transmission rope is matched with a ground potential electrician to disconnect the old tension string cross arm end;
14 The first ground electrician and the ground potential electrician cooperate to transfer the new tension string to the ground potential electrician working position, and transfer the new tension string into the bottle supporting frame, at the moment, the old tension string automatically falls onto the ground, the first ground electrician and the ground potential electrician cooperate to restore the connection of the cross arm end of the new tension string, and the locking pin of the cross arm end of the new tension string is restored;
15 The ground potential electrician rotates the rotary hanging bracket assembly to rotate the new tension string to the wire side along the horizontal direction, the ground potential electrician is matched with the equipotential electrician to recover the connection of the wire end of the new tension string, and a locking pin of the wire end of the new tension string is arranged, so that the replacement of the tension string is completed.
The tension on the tension string can be transferred to the cross arm side yoke plate card, the upper anti-torsion screw rod, the lower anti-torsion screw rod, the upper insulating pull rod, the lower insulating pull rod and the wire side yoke plate card through the two stress points of the cross arm side yoke plate card and the wire side yoke plate card, so that the replacement of the tension string can be realized; meanwhile, the tripod assembly additionally arranged is matched with the transverse tube, so that the bottle supporting frame can be mounted, the rotary hanging frame assembly is matched, the bottle supporting frame can horizontally rotate, the tension string can horizontally rotate, the old tension string can be lowered and the new tension string can be raised, the old tension string can be detached and the new tension string can be mounted conveniently, and time and labor are saved.
The technical scheme provided by the invention has the beneficial effects that:
1. the tension on the tension string can be transferred to the cross arm side yoke plate card, the upper anti-torsion screw rod, the lower anti-torsion screw rod, the upper insulating pull rod, the lower insulating pull rod and the wire side yoke plate card through the two stress points of the cross arm side yoke plate card and the wire side yoke plate card, so that the replacement of the tension string can be realized;
2. the triangular bracket component and the transverse tube are additionally arranged to be matched with each other, so that the bottle supporting frame can be mounted, the rotary hanging bracket component is matched with the bottle supporting frame, and the bottle supporting frame can horizontally rotate, so that the horizontal rotation of the tension string can be realized, the lowering of the old tension string and the rising of the new tension string can be realized at the same time, the disassembly of the old tension string and the mounting of the new tension string are facilitated, and time and labor are saved;
3. the added connecting plug and the fixed screw facilitate the connection between the tripod assembly and the bottle supporting frame;
4. the added insulating plate can enable the bottle supporting frame to be in a horizontal state after being installed;
5. the lower end of the insulating plate and the bottom edge of the tripod assembly are designed to be positioned at the same horizontal height, so that the bottle supporting frame can be ensured to be in a horizontal state after being installed;
6. the added U-shaped clamping part at the side of the cross arm is convenient for mounting the cross arm side yoke plate clamp;
7. The added U-shaped clamping part on the wire side facilitates the installation of the wire side yoke plate card;
8. the added cross tube diagonal brace can greatly increase the bearing capacity of the cross tube;
9. the distance between the frame base and the transverse tube is designed to be larger than the radius of the umbrella disc of the tension string, so that interference between the tool and the tension string can be avoided.
Drawings
FIG. 1 is a schematic view of the use state structure of the present cluster tool;
FIG. 2 is a schematic top view of the structure of FIG. 1 with the upper anti-twist screw, lower anti-twist screw, upper insulating tie rod and lower insulating tie rod removed;
FIG. 3 is a schematic view of a cross arm side yoke board;
FIG. 4 is a schematic side elevational view of FIG. 3;
FIG. 5 is a schematic top view of the structure of FIG. 3;
FIG. 6 is a schematic diagram of a wire side-yoke board;
FIG. 7 is a schematic side elevational view of FIG. 6;
FIG. 8 is a schematic top view of the structure of FIG. 6;
FIG. 9 is a schematic diagram of an assembled configuration of a swivel hanger assembly and a tripod assembly;
FIG. 10 is a schematic top view of the structure of FIG. 9;
fig. 11 is a schematic structural view of the tripod assembly.
In the figure, a cross arm side yoke plate 1, a cross arm side yoke plate body 1a, a cross arm side U-shaped clamping part 1b, a cross arm side fixing bolt 1c, a screw rod inserting port 1d, a wire side yoke plate 2, a wire side yoke plate body 2a, a wire side U-shaped clamping part 2b, a wire side fixing bolt 2c, a pull rod connecting port 2d, a rotary hanger assembly 3, a hanger seat 3a, a support shaft 3b, a fixed connecting rod 3c, a sleeve 3d, a cross tube 3e, a cross tube diagonal brace 3f, an upper torsion preventing screw rod 4, a lower torsion preventing screw rod 5, an upper insulating pull rod 6, a lower insulating pull rod 7, a tripod assembly 8, a tripod 8a, a connecting plug 8a1, a fixing bolt 8a2, a hoisting screw rod 8b, a cross arm side triangular yoke plate a and a wire side yoke plate b.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings.
Example 1:
the combined tool for replacing the direct current grounding electrode line tension string by the horizontal rotation method as shown in fig. 1 comprises a cross arm side yoke plate card 1 which can be fixedly clamped on the bottom edge of a cross arm side triangular yoke plate a, a wire side yoke plate card 2 which can be fixedly clamped on a wire side yoke plate b and a rotary hanger assembly 3; the cross arm side yoke plate card 1 is vertically arranged with the cross arm side triangular yoke plate a, the wire side yoke plate card 2 is vertically arranged with the wire side yoke plate b, an upper anti-torsion screw rod 4 and a lower anti-torsion screw rod 5 are correspondingly inserted into the upper end and the lower end of the cross arm side yoke plate card 1 respectively, the upper anti-torsion screw rod 4 is connected with the upper end of the wire side yoke plate card 2 through an upper insulating pull rod 6, and the lower anti-torsion screw rod 5 is connected with the lower end of the wire side yoke plate card 2 through a lower insulating pull rod 7; the rotary hanging bracket assembly 3 comprises a bracket 3a which can be fixedly clamped on one waist edge of the cross arm side triangular yoke plate a, a supporting shaft 3b, a fixed connecting rod 3c, a sleeve 3d and a cross tube 3e, wherein the clamping end of the bracket 3a is of a U-shaped structure, the opening end of the U-shaped structure of the bracket 3a is provided with a bracket fixing bolt which can be inserted in a construction hole on the bottom edge of the cross arm side triangular yoke plate a, the lower end of the supporting shaft 3b is inserted in the bracket 3a, the upper end of the supporting shaft 3b is connected with one end of the fixed connecting rod 3c, the other end of the fixed connecting rod 3c is connected with the upper end of the cross arm side yoke plate card 1, the sleeve 3d is rotatably sleeved on the supporting shaft 3b, the cross arm end of the cross tube 3e is connected with the sleeve 3d, the wire end of the cross tube 3e can extend to the upper side of the wire end of a tension string, and the lower end of the supporting shaft 3b is connected with the triangular bracket 8.
The tension on the tension string can be transferred to the cross arm side yoke plate card 1, the upper anti-torsion screw rod 4, the lower anti-torsion screw rod 5, the upper insulating pull rod 6, the lower insulating pull rod 7 and the wire side yoke plate card 2 through the two stress points of the cross arm side yoke plate card 1 and the wire side yoke plate card 2, so that the replacement of the tension string can be realized; meanwhile, the tripod assembly 8 additionally arranged is matched with the transverse tube 3e, so that the bottle supporting frame can be mounted, the rotary hanging frame assembly 3 is matched, the bottle supporting frame can horizontally rotate, the tension string can horizontally rotate, the old tension string can be lowered and the new tension string can be raised, the old tension string can be detached and the new tension string can be mounted conveniently, and time and labor are saved.
The tripod assembly 8 comprises a tripod 8a and a lifting screw 8b which are of triangular structures, connecting plugs 8a1 which can be inserted on the bottle supporting frame are respectively arranged at two ends of the bottom edge of the tripod 8a in an outward extending mode, fixing screws 8a2 are arranged at the outer ends of the connecting plugs 8a1, the lower ends of the lifting screw 8b are connected with the top angle of the tripod 8a, external threads are arranged at the upper ends of the lifting screw 8b, and the upper ends of the lifting screw 8b penetrate through the frame base 3a from bottom to top and are fixedly lifted on the lower end of the supporting shaft 3b in a threaded mode. The added connecting plug 8a1 and the fixed screw 8a2 facilitate the connection between the tripod assembly 8 and the bottle holder. An insulating plate which can be connected with the bottle supporting frame is hung at the wire end of the transverse tube 3 e. The added insulating plate can enable the bottle supporting frame to be in a horizontal state after being installed. The lower end of the insulating plate and the bottom edge of the tripod assembly 8 are positioned at the same horizontal height. The lower end of the insulating plate and the bottom edge of the tripod assembly 8 are designed to be positioned at the same horizontal height, so that the bottle supporting frame can be ensured to be in a horizontal state after being installed.
Above-mentioned cross arm side yoke plate card 1 includes cross arm side yoke plate card body 1a, the middle part of cross arm side yoke plate card body 1a is equipped with can the cartridge and is in cross arm side U type clamping portion 1b on the bottom edge of cross arm side triangle yoke plate a, but the open end of cross arm side U type clamping portion 1b is equipped with cartridge in cross arm side fixing bolt 1c in the construction hole on the bottom edge of cross arm side triangle yoke plate a, the both ends of cross arm side yoke plate card body 1a are equipped with the lead screw cartridge mouth 1d that is used for cartridge anti-torsion lead screw respectively. The added U-shaped clamping part 1b on the side of the cross arm facilitates the installation of the cross arm side yoke plate card 1.
The wire side joint board card 2 comprises a wire side joint board card body 2a, a wire side U-shaped clamping part 2b capable of being clamped on one side edge of the wire side joint board b is arranged in the middle of the wire side joint board card body 2a, a wire side fixing bolt 2c capable of being inserted in a construction hole on one side edge of the wire side joint board b is arranged at the opening end of the wire side U-shaped clamping part 2b, and pull rod connectors 2d for connecting insulation pull rods are respectively arranged at two ends of the wire side joint board card body 2 a. The added U-shaped clamping part 2b on the wire side facilitates the installation of the wire side joint board card 2.
The embodiment further comprises a transverse tube diagonal brace 3f which is obliquely arranged, wherein the upper end of the transverse tube diagonal brace 3f is connected with the middle part of the transverse tube 3e, and the lower end of the transverse tube diagonal brace 3f is connected with the sleeve 3 d. The added cross tube diagonal brace 3f can greatly increase the bearing capacity of the cross tube 3 e. The top surface of the sleeve 3d abuts against the bottom surface of the fixed connecting rod 3c, and the bottom surface of the sleeve 3d abuts against the top surface of the stand 3 a. The distance between the frame base 3a and the transverse tube 3e is larger than the radius of the umbrella disc of the tension string. The distance between the frame base 3a and the transverse tube 3e is designed to be larger than the radius of the umbrella disc of the tension string, so that interference between the tool and the tension string can be avoided.
According to the embodiment, the tension on the tension string can be transferred to the cross arm side yoke plate card 1, the upper anti-torsion screw 4, the lower anti-torsion screw 5, the upper insulating pull rod 6, the lower insulating pull rod 7 and the wire side yoke plate card 2 through the two stress points of the cross arm side yoke plate card 1 and the wire side yoke plate card 2, so that the replacement of the tension string can be realized; the tripod assembly 8 and the transverse tube 3e are additionally arranged to be matched with each other, so that the bottle supporting frame can be mounted, the rotary hanging frame assembly 3 is matched with the bottle supporting frame, the bottle supporting frame can horizontally rotate, the tension string can horizontally rotate, the old tension string can be lowered and the new tension string can be raised, the old tension string can be detached and the new tension string can be mounted conveniently, and time and labor are saved.
Meanwhile, the added connecting plug 8a1 and the fixed screw 8a2 facilitate the connection between the tripod assembly 8 and the bottle supporting frame; the added insulating plate can enable the bottle supporting frame to be in a horizontal state after being installed; the lower end of the insulating plate and the bottom edge of the tripod assembly 8 are designed to be positioned at the same horizontal height, so that the bottle supporting frame can be ensured to be in a horizontal state after being installed.
Moreover, the added cross arm side U-shaped clamping part 1b facilitates the installation of the cross arm side yoke plate card 1; the added U-shaped clamping part 2b on the wire side facilitates the installation of the wire side joint board card 2; the added transverse tube diagonal brace 3f can greatly increase the bearing capacity of the transverse tube 3 e; the distance between the frame base 3a and the transverse tube 3e is designed to be larger than the radius of the umbrella disc of the tension string, so that interference between the tool and the tension string can be avoided.
Example 2:
the application method of the combined tool for replacing the direct current grounding electrode line strain insulator string by the horizontal rotation method comprises the following steps of:
1) The ground potential electrician climbs to the ground potential electrician working position of the pole tower, the ground potential electrician installs the pole tower fixed pulley on the pole tower and wears the pole tower side transmission rope on the pole tower fixed pulley;
2) The first ground electrician transmits the insulation operating rod and the wire fixed pulley which is threaded with the wire side transmission rope to the ground potential electrician through the tower side transmission rope, and the ground potential electrician hangs the wire fixed pulley at the position corresponding to the wire end of the old tension string on the wire through the insulation operating rod;
3) The second ground electrician ties the end part of the insulating rope ladder by using a wire side transmission rope, and installs the insulating rope ladder on a wire at the equipotential electrician working position by using the wire side transmission rope;
4) After the equipotential electrician wears the shielding clothes and confirms that the shielding clothes are well connected, the insulating rope ladder climbs to a position which is more than 0.2m away from the lead to transfer potential, and the equipotential electrician enters an equipotential working position;
5) The first ground electrician assembles the upper anti-torsion screw rod 4, the lower anti-torsion screw rod 5 and the cross arm side yoke plate card 1, assembles the tripod assembly 8 and the rotary hanging bracket assembly 3, and transmits the assembled upper anti-torsion screw rod 4, the assembled lower anti-torsion screw rod 5 and the cross arm side yoke plate card 1, the assembled tripod assembly 8 and the assembled rotary hanging bracket assembly 3, the upper insulating pull rod 6 and the lower insulating pull rod 7 to the ground electrician through a tower side transmission rope, and the second ground electrician transmits the wire side yoke plate card 2 and the insulating plate to the equipotential electrician through a wire side transmission rope;
6) The ground potential electrician fixedly clamps the cross arm side connecting plate card 1 at a construction hole in the middle of the bottom edge of the cross arm side triangular connecting plate a, connects one end of the upper insulating pull rod 6 with the upper anti-torsion screw rod 4, connects one end of the lower insulating pull rod 7 with the lower anti-torsion screw rod 5, fixedly clamps the frame base 3a on the waist edge of the cross arm side triangular connecting plate a corresponding to the old tension string, and then connects the fixed connecting rod 3c with the upper end of the cross arm side connecting plate card 1 by the ground potential electrician; meanwhile, the equipotential electrician fixedly clamps the lead side yoke plate card 2 at a construction hole in the middle of the side edge of the lead side yoke plate b; finally, the ground potential electrician and the equipotential electrician cooperate to connect the other end of the upper insulating pull rod 6 with the upper end of the wire side joint board card 2, connect the other end of the lower insulating pull rod 7 with the lower end of the wire side joint board card 2, and then connect the upper end of the insulating board with the wire end of the transverse tube 3 e;
7) The first ground electrician and the second ground electrician are matched with each other, and the bottle supporting frame is transmitted to a ground potential electrician and an equipotential electrician through a tower side transmission rope and a wire side transmission rope, wherein the ground potential electrician connects one end of the bottle supporting frame with the tripod assembly 8, and the equipotential electrician connects the other end of the bottle supporting frame with the lower end of the insulating plate, so that the bottle supporting frame is in a horizontal state;
8) The ground potential electrician tightens the upper anti-torsion screw rod 4 and the lower anti-torsion screw rod 5, and transfers the tension on the old tension string to the cross arm side joint board card 1, the upper anti-torsion screw rod 4, the lower anti-torsion screw rod 5, the upper insulating pull rod 6, the lower insulating pull rod 7 and the wire side joint board card 2;
9) After the bearing tool is checked to be stressed normally, the equipotential electrician takes out the locking pin of the old tension string wire end, and continues to tighten the anti-torsion screw rod 2 until the equipotential electrician breaks away from the connection of the old tension string wire end, and at the moment, the old tension string falls onto the bottle supporting frame under the action of gravity;
10 A ground potential electrician rotates the rotary hanging bracket assembly 3 to rotate the old tension string to the cross arm part along the horizontal direction;
11 The ground potential electrician fastens one end of the transmission rope at the side of the tower to the old tension string and takes out the locking pin at the cross arm end of the old tension string;
12 The first ground electrician fastens the other end of the transmission rope at the side of the pole tower to a new tension string;
13 A first ground electrician operating tower side transmission rope is matched with a ground potential electrician to disconnect the old tension string cross arm end;
14 The first ground electrician and the ground potential electrician cooperate to transfer the new tension string to the ground potential electrician working position, and transfer the new tension string into the bottle supporting frame, at the moment, the old tension string automatically falls onto the ground, the first ground electrician and the ground potential electrician cooperate to restore the connection of the cross arm end of the new tension string, and the locking pin of the cross arm end of the new tension string is restored;
15 The ground potential electrician rotates the rotary hanging bracket component 3 to rotate the new tension string to the wire side along the horizontal direction, the ground potential electrician is matched with the equipotential electrician to recover the connection of the wire end of the new tension string, and the locking pin of the wire end of the new tension string is arranged, so that the replacement of the tension string is completed.
The tension on the tension string can be transferred to the cross arm side yoke plate card 1, the upper anti-torsion screw rod 4, the lower anti-torsion screw rod 5, the upper insulating pull rod 6, the lower insulating pull rod 7 and the wire side yoke plate card 2 through the two stress points of the cross arm side yoke plate card 1 and the wire side yoke plate card 2, so that the replacement of the tension string can be realized; meanwhile, the tripod assembly 8 additionally arranged is matched with the transverse tube 3e, so that the bottle supporting frame can be mounted, the rotary hanging frame assembly 3 is matched, the bottle supporting frame can horizontally rotate, the tension string can horizontally rotate, the old tension string can be lowered and the new tension string can be raised, the old tension string can be detached and the new tension string can be mounted conveniently, and time and labor are saved.
After the tension string is replaced, the upper anti-torsion screw rod 4 and the lower anti-torsion screw rod 5 are firstly loosened, the load on the cross arm side yoke plate card 1, the upper anti-torsion screw rod 4, the lower anti-torsion screw rod 5, the upper insulating pull rod 6, the lower insulating pull rod 7 and the wire side yoke plate card 2 is unloaded, the cross arm side yoke plate card 1, the upper anti-torsion screw rod 4, the lower anti-torsion screw rod 5, the upper insulating pull rod 6, the lower insulating pull rod 7, the wire side yoke plate card 2 and other parts can be removed, and finally the equipotential electrician and the ground potential electrician are sequentially withdrawn.
The combined tool comprises a cross arm side yoke plate card 1 which can be fixedly clamped on the bottom edge of a cross arm side triangular yoke plate a, a wire side yoke plate card 2 which can be fixedly clamped on a wire side yoke plate b and a rotary hanger assembly 3; the cross arm side yoke plate card 1 is vertically arranged with the cross arm side triangular yoke plate a, the wire side yoke plate card 2 is vertically arranged with the wire side yoke plate b, an upper anti-torsion screw rod 4 and a lower anti-torsion screw rod 5 are correspondingly inserted into the upper end and the lower end of the cross arm side yoke plate card 1 respectively, the upper anti-torsion screw rod 4 is connected with the upper end of the wire side yoke plate card 2 through an upper insulating pull rod 6, and the lower anti-torsion screw rod 5 is connected with the lower end of the wire side yoke plate card 2 through a lower insulating pull rod 7; the rotary hanging bracket assembly 3 comprises a bracket seat 3a which can be fixedly clamped on one waist edge of the cross arm side triangular yoke plate a, the clamping end of the bracket seat 3a is of a U-shaped structure, the opening end of the U-shaped structure of the bracket seat 3a is provided with a bracket seat fixing bolt which can be inserted in a construction hole on the bottom edge of the cross arm side triangular yoke plate a, a supporting shaft 3b, a fixed connecting rod 3c, a sleeve 3d and a cross tube 3e, the lower end of the supporting shaft 3b is inserted in the bracket seat 3a, the upper end of the supporting shaft 3b is connected with one end of the fixed connecting rod 3c, the other end of the fixed connecting rod 3c is connected with the upper end of the cross arm side yoke plate card 1, the sleeve 3d is rotatably sleeved on the supporting shaft 3b, the cross arm end of the cross tube 3e is connected with the sleeve 3d, the wire end of the cross tube 3e can extend to the upper side of the wire end of a strain insulator string, and the lower end of the supporting shaft 3b is connected with the triangular bracket 8.
The tension on the tension string can be transferred to the cross arm side yoke plate card 1, the upper anti-torsion screw rod 4, the lower anti-torsion screw rod 5, the upper insulating pull rod 6, the lower insulating pull rod 7 and the wire side yoke plate card 2 through the two stress points of the cross arm side yoke plate card 1 and the wire side yoke plate card 2, so that the replacement of the tension string can be realized; meanwhile, the tripod assembly 8 additionally arranged is matched with the transverse tube 3e, so that the bottle supporting frame can be mounted, the rotary hanging frame assembly 3 is matched, the bottle supporting frame can horizontally rotate, the tension string can horizontally rotate, the old tension string can be lowered and the new tension string can be raised, the old tension string can be detached and the new tension string can be mounted conveniently, and time and labor are saved.
The tripod assembly 8 comprises a tripod 8a and a lifting screw 8b which are of triangular structures, connecting plugs 8a1 which can be inserted on the bottle supporting frame are respectively arranged at two ends of the bottom edge of the tripod 8a in an outward extending mode, fixing screws 8a2 are arranged at the outer ends of the connecting plugs 8a1, the lower ends of the lifting screw 8b are connected with the top angle of the tripod 8a, external threads are arranged at the upper ends of the lifting screw 8b, and the upper ends of the lifting screw 8b penetrate through the frame base 3a from bottom to top and are fixedly lifted on the lower end of the supporting shaft 3b in a threaded mode. The added connecting plug 8a1 and the fixed screw 8a2 facilitate the connection between the tripod assembly 8 and the bottle holder. An insulating plate which can be connected with the bottle supporting frame is hung at the wire end of the transverse tube 3 e. The added insulating plate can enable the bottle supporting frame to be in a horizontal state after being installed. The lower end of the insulating plate and the bottom edge of the tripod assembly 8 are positioned at the same horizontal height. The lower end of the insulating plate and the bottom edge of the tripod assembly 8 are designed to be positioned at the same horizontal height, so that the bottle supporting frame can be ensured to be in a horizontal state after being installed.
Above-mentioned cross arm side yoke plate card 1 includes cross arm side yoke plate card body 1a, the middle part of cross arm side yoke plate card body 1a is equipped with can the cartridge and is in cross arm side U type clamping portion 1b on the bottom edge of cross arm side triangle yoke plate a, but the open end of cross arm side U type clamping portion 1b is equipped with cartridge in cross arm side fixing bolt 1c in the construction hole on the bottom edge of cross arm side triangle yoke plate a, the both ends of cross arm side yoke plate card body 1a are equipped with the lead screw cartridge mouth 1d that is used for cartridge anti-torsion lead screw respectively. The added U-shaped clamping part 1b on the side of the cross arm facilitates the installation of the cross arm side yoke plate card 1.
The wire side joint board card 2 comprises a wire side joint board card body 2a, a wire side U-shaped clamping part 2b capable of being clamped on one side edge of the wire side joint board b is arranged in the middle of the wire side joint board card body 2a, a wire side fixing bolt 2c capable of being inserted in a construction hole on one side edge of the wire side joint board b is arranged at the opening end of the wire side U-shaped clamping part 2b, and pull rod connectors 2d for connecting insulation pull rods are respectively arranged at two ends of the wire side joint board card body 2 a. The added U-shaped clamping part 2b on the wire side facilitates the installation of the wire side joint board card 2.
The combined tool further comprises a transverse tube diagonal brace 3f which is obliquely arranged, the upper end of the transverse tube diagonal brace 3f is connected with the middle of the transverse tube 3e, and the lower end of the transverse tube diagonal brace 3f is connected with the sleeve 3 d. The added cross tube diagonal brace 3f can greatly increase the bearing capacity of the cross tube 3 e. The top surface of the sleeve 3d abuts against the bottom surface of the fixed connecting rod 3c, and the bottom surface of the sleeve 3d abuts against the top surface of the stand 3 a. The distance between the frame base 3a and the transverse tube 3e is larger than the radius of the umbrella disc of the tension string. The distance between the frame base 3a and the transverse tube 3e is designed to be larger than the radius of the umbrella disc of the tension string, so that interference between the tool and the tension string can be avoided.
According to the embodiment, the tension on the tension string can be transferred to the cross arm side yoke plate card 1, the upper anti-torsion screw 4, the lower anti-torsion screw 5, the upper insulating pull rod 6, the lower insulating pull rod 7 and the wire side yoke plate card 2 through the two stress points of the cross arm side yoke plate card 1 and the wire side yoke plate card 2, so that the replacement of the tension string can be realized; the tripod assembly 8 and the transverse tube 3e are additionally arranged to be matched with each other, so that the bottle supporting frame can be mounted, the rotary hanging frame assembly 3 is matched with the bottle supporting frame, the bottle supporting frame can horizontally rotate, the tension string can horizontally rotate, the old tension string can be lowered and the new tension string can be raised, the old tension string can be detached and the new tension string can be mounted conveniently, and time and labor are saved.
Meanwhile, the added connecting plug 8a1 and the fixed screw 8a2 facilitate the connection between the tripod assembly 8 and the bottle supporting frame; the added insulating plate can enable the bottle supporting frame to be in a horizontal state after being installed; the lower end of the insulating plate and the bottom edge of the tripod assembly 8 are designed to be positioned at the same horizontal height, so that the bottle supporting frame can be ensured to be in a horizontal state after being installed.
Moreover, the added cross arm side U-shaped clamping part 1b facilitates the installation of the cross arm side yoke plate card 1; the added U-shaped clamping part 2b on the wire side facilitates the installation of the wire side joint board card 2; the added transverse tube diagonal brace 3f can greatly increase the bearing capacity of the transverse tube 3 e; the distance between the frame base 3a and the transverse tube 3e is designed to be larger than the radius of the umbrella disc of the tension string, so that interference between the tool and the tension string can be avoided.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (10)
1. The combined tool for replacing the tension string of the direct current grounding electrode circuit by the horizontal rotation method is characterized by comprising a cross arm side yoke plate card (1) which can be fixedly clamped on the bottom edge of a cross arm side triangular yoke plate (a), a wire side yoke plate card (2) which can be fixedly clamped on a wire side yoke plate (b) and a rotary hanger assembly (3);
the cross arm side connecting plate card (1) is vertically arranged with the cross arm side triangular connecting plate (a), the wire side connecting plate card (2) is vertically arranged with the wire side connecting plate (b), an upper anti-torsion screw rod (4) and a lower anti-torsion screw rod (5) are correspondingly inserted at the upper end and the lower end of the cross arm side connecting plate card (1) respectively, the upper anti-torsion screw rod (4) is connected with the upper end of the wire side connecting plate card (2) through an upper insulating pull rod (6), and the lower anti-torsion screw rod (5) is connected with the lower end of the wire side connecting plate card (2) through a lower insulating pull rod (7);
the rotary hanging bracket assembly (3) comprises a bracket seat (3 a) which can be fixedly clamped on one waist edge of the cross arm side triangular yoke plate (a), a supporting shaft (3 b), a fixed connecting rod (3 c), a sleeve (3 d) and a transverse tube (3 e), wherein the lower end of the supporting shaft (3 b) is inserted into the bracket seat (3 a), the upper end of the supporting shaft (3 b) is connected with one end of the fixed connecting rod (3 c), the other end of the fixed connecting rod (3 c) is connected with the upper end of the cross arm side yoke plate card (1), the sleeve (3 d) is rotatably sleeved on the supporting shaft (3 b), the wire end of the transverse tube (3 e) is connected with the sleeve (3 d), the wire end of the transverse tube (3 e) can extend to the upper part of the wire end of a tension string, the lower end of the supporting shaft (3 b) is provided with a tripod assembly (8) which can be connected with a bracket, the tripod (8 a) comprises a screw rod (8 a) which can be connected with the upper end of the bracket (8 a), the two ends (8 a) of the screw rod (8 a) are connected with the upper end (8 a) of the bracket (8 a) which can be fixedly sleeved on the top corner angle (2 a), the top surface of the sleeve (3 d) is propped against the bottom surface of the fixed connecting rod (3 c).
2. The combined tool for replacing the direct current grounding electrode line tension string by the horizontal rotation method according to claim 1, wherein the upper end of the lifting screw rod (8 b) is provided with external threads, and the upper end of the lifting screw rod (8 b) penetrates through the stand seat (3 a) from bottom to top and is fixedly lifted on the lower end of the supporting shaft (3 b) in a threaded mode.
3. The combined tool for replacing the direct current grounding electrode line strain insulator string by the horizontal rotation method according to claim 1, wherein an insulating plate which can be connected with a bottle supporting frame is hung at the wire end of the transverse tube (3 e).
4. A combination tool for replacing a direct current earth electrode line strain insulator string according to claim 3, wherein the lower end of the insulating plate is positioned at the same level as the bottom edge of the tripod assembly (8).
5. The combined tool for replacing the direct current grounding electrode line tension string by the horizontal rotation method according to claim 1, wherein the cross arm side joint plate clamp (1) comprises a cross arm side joint plate clamp body (1 a), a cross arm side U-shaped clamping part (1 b) capable of being clamped on the bottom edge of the cross arm side triangular joint plate (a) is arranged in the middle of the cross arm side joint plate clamp body (1 a), a cross arm side fixing bolt (1 c) capable of being inserted in a construction hole on the bottom edge of the cross arm side triangular joint plate (a) is arranged at the opening end of the cross arm side U-shaped clamping part (1 b), and screw rod inserting ports (1 d) for inserting anti-torsion screw rods are respectively arranged at two ends of the cross arm side joint plate clamp body (1 a).
6. The combined tool for replacing the direct current grounding electrode line tension string by the horizontal rotation method according to claim 1, wherein the wire side joint plate card (2) comprises a wire side joint plate card body (2 a), a wire side U-shaped clamping part (2 b) capable of being clamped on one side edge of the wire side joint plate (b) is arranged in the middle of the wire side joint plate card body (2 a), a wire side fixing bolt (2 c) capable of being inserted in a construction hole on one side edge of the wire side joint plate (b) is arranged at the opening end of the wire side U-shaped clamping part (2 b), and pull rod connecting ports (2 d) for connecting insulation pull rods are respectively arranged at two ends of the wire side joint plate card body (2 a).
7. The combined tool for replacing the direct current grounding electrode line tension string by the horizontal rotation method according to claim 1, further comprising a transverse tube diagonal brace (3 f) which is obliquely arranged, wherein the upper end of the transverse tube diagonal brace (3 f) is connected with the middle part of the transverse tube (3 e), and the lower end of the transverse tube diagonal brace (3 f) is connected with the sleeve (3 d).
8. The combination tool for replacing a direct current grounding electrode line strain insulator string according to the horizontal rotation method of claim 1, wherein the bottom surface of the sleeve (3 d) is abutted against the top surface of the stand (3 a).
9. The combination tool for replacing a direct current grounding electrode line tension string by a horizontal rotation method according to claim 1, wherein the distance between the frame base (3 a) and the transverse tube (3 e) is larger than the radius of an umbrella disc of the tension string.
10. The method for replacing the direct current grounding electrode line strain insulator string by using the combined tool for replacing the direct current grounding electrode line strain insulator string by using the horizontal rotation method as set forth in claim 1, which is characterized by comprising the following steps:
1) The ground potential electrician climbs to the ground potential electrician working position of the pole tower, the ground potential electrician installs the pole tower fixed pulley on the pole tower and wears the pole tower side transmission rope on the pole tower fixed pulley;
2) The first ground electrician transmits the insulation operating rod and the wire fixed pulley which is threaded with the wire side transmission rope to the ground potential electrician through the tower side transmission rope, and the ground potential electrician hangs the wire fixed pulley at the position corresponding to the wire end of the old tension string on the wire through the insulation operating rod;
3) The second ground electrician ties the end part of the insulating rope ladder by using a wire side transmission rope, and installs the insulating rope ladder on a wire at the equipotential electrician working position by using the wire side transmission rope;
4) After the equipotential electrician wears the shielding clothes and confirms that the shielding clothes are well connected, the insulating rope ladder climbs to a position which is more than 0.2m away from the lead to transfer potential, and the equipotential electrician enters an equipotential working position;
5) The first ground electrician assembles the upper anti-torsion screw rod (4), the lower anti-torsion screw rod (5) and the cross arm side yoke plate card (1), assembles the tripod assembly (8) and the rotary hanging bracket assembly (3), and transmits the assembled upper anti-torsion screw rod (4), the assembled lower anti-torsion screw rod (5) and the cross arm side yoke plate card (1), the assembled tripod assembly (8) and the assembled rotary hanging bracket assembly (3) to the ground electrician together through a tower side transmission rope, and transmits the wire side yoke plate card (2) and an insulating plate to the equipotential electrician through a wire side transmission rope;
6) The ground potential electrician fixedly clamps the cross arm side connecting plate clamp (1) at a construction hole in the middle of the bottom edge of the cross arm side triangular connecting plate (a), connects one end of the upper insulating pull rod (6) with the upper anti-torsion screw rod (4), connects one end of the lower insulating pull rod (7) with the lower anti-torsion screw rod (5), fixedly clamps the frame base (3 a) on the waist edge of the cross arm side triangular connecting plate (a) corresponding to the old tension string, and then connects the fixed connecting rod (3 c) with the upper end of the cross arm side connecting plate clamp (1); meanwhile, the equipotential electrician fixedly clamps the wire side connecting plate card (2) at a construction hole in the middle of the side edge of the wire side connecting plate (b); finally, the ground potential electrician and the equipotential electrician cooperate to connect the other end of the upper insulation pull rod (6) with the upper end of the wire side joint board card (2), connect the other end of the lower insulation pull rod (7) with the lower end of the wire side joint board card (2), and then connect the upper end of the insulation board with the wire end of the transverse tube (3 e);
7) The first ground electrician and the second ground electrician are matched with each other, the bottle supporting frame is transferred to a ground potential electrician and an equipotential electrician through a tower side transfer rope and a wire side transfer rope, the ground potential electrician connects one end of the bottle supporting frame with the tripod assembly (8), and the equipotential electrician connects the other end of the bottle supporting frame with the lower end of the insulating plate, so that the bottle supporting frame is in a horizontal state;
8) The ground potential electrician tightens the upper anti-torsion screw rod (4) and the lower anti-torsion screw rod (5) and transfers the tension on the old tension string to the cross arm side joint board (1), the upper anti-torsion screw rod (4), the lower anti-torsion screw rod (5), the upper insulating pull rod (6), the lower insulating pull rod (7) and the wire side joint board (2);
9) After the bearing tool is checked to be stressed normally, the equipotential electrician takes out the locking pin of the old tension string wire end, and continues to tighten the anti-torsion screw rod (2) until the equipotential electrician breaks away from the connection of the old tension string wire end, and at the moment, the old tension string falls onto the bottle supporting frame under the action of gravity;
10 The ground potential electrician rotates the rotary hanging bracket component (3) to rotate the old tension string to the cross arm part along the horizontal direction;
11 The ground potential electrician fastens one end of the transmission rope at the side of the tower to the old tension string and takes out the locking pin at the cross arm end of the old tension string;
12 The first ground electrician fastens the other end of the transmission rope at the side of the pole tower to a new tension string;
13 A first ground electrician operating tower side transmission rope is matched with a ground potential electrician to disconnect the old tension string cross arm end;
14 The first ground electrician and the ground potential electrician cooperate to transfer the new tension string to the ground potential electrician working position, and transfer the new tension string into the bottle supporting frame, at the moment, the old tension string automatically falls onto the ground, the first ground electrician and the ground potential electrician cooperate to restore the connection of the cross arm end of the new tension string, and the locking pin of the cross arm end of the new tension string is restored;
15 The ground potential electrician rotates the rotary hanging bracket component (3) to rotate the new tension string to the wire side along the horizontal direction, the ground potential electrician is matched with the equipotential electrician to recover the connection of the wire end of the new tension string, and the locking pin of the wire end of the new tension string is arranged, so that the replacement of the tension string is completed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910110170.8A CN109672111B (en) | 2019-02-11 | 2019-02-11 | Combined tool and method for replacing direct current grounding electrode line strain insulator string by horizontal rotation method |
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| CN201910110170.8A CN109672111B (en) | 2019-02-11 | 2019-02-11 | Combined tool and method for replacing direct current grounding electrode line strain insulator string by horizontal rotation method |
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| CN109672111A CN109672111A (en) | 2019-04-23 |
| CN109672111B true CN109672111B (en) | 2024-01-30 |
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| CN109672111A (en) | 2019-04-23 |
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