CN117712915A - Maintenance device and maintenance method for drilling span type angle steel tower insulator - Google Patents
Maintenance device and maintenance method for drilling span type angle steel tower insulator Download PDFInfo
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- CN117712915A CN117712915A CN202311655561.0A CN202311655561A CN117712915A CN 117712915 A CN117712915 A CN 117712915A CN 202311655561 A CN202311655561 A CN 202311655561A CN 117712915 A CN117712915 A CN 117712915A
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- 239000012212 insulator Substances 0.000 title claims abstract description 112
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 36
- 239000010959 steel Substances 0.000 title claims abstract description 36
- 238000012423 maintenance Methods 0.000 title claims abstract description 30
- 238000005553 drilling Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000009434 installation Methods 0.000 claims abstract description 14
- 238000006243 chemical reaction Methods 0.000 claims description 36
- 230000001360 synchronised effect Effects 0.000 claims description 34
- 238000004804 winding Methods 0.000 claims description 32
- 230000000903 blocking effect Effects 0.000 claims description 25
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract description 3
- 235000017491 Bambusa tulda Nutrition 0.000 abstract description 3
- 241001330002 Bambuseae Species 0.000 abstract description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract description 3
- 239000011425 bamboo Substances 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009413 insulation Methods 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
-
- 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
- H02G1/04—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables for mounting or stretching
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Electric Cable Installation (AREA)
Abstract
The invention discloses a maintenance device and a maintenance method for a drilling span type angle steel tower insulator. Utilize the stay cord shrink of symmetry in insulator both sides to make the connecting plate take up the cable, the insulator is lax along with can be taken off and change, and soft stay cord can shrink back in the installation section of thick bamboo before using, and facilitate the use carries, and because its soft characteristic, when the installation section of thick bamboo is installed in same mounted position, can change the insulator of the same position in steel tower main part both sides.
Description
Technical Field
The invention belongs to the technical field of maintenance of cable insulators, and particularly relates to a maintenance device for a drilling-span type angle steel tower insulator and a maintenance method for the maintenance device for the drilling-span type angle steel tower insulator.
Background
The angle steel tower mainly plays roles of supporting and fixing cables, supporting insulators, bearing environmental loads, dead weights and the like, is generally used for power transmission cables and transformer substation engineering, the insulators are standard accessories of the angle steel tower, two ends of each insulator serve as special insulation control parts, the two ends of each insulator are connected with the cables and the angle steel tower respectively, and the insulators need to be replaced in time in order to ensure the safety of power transmission.
In the prior art, the insulator is replaced by a hard support frame generally, and the insulator is larger in occupied space by the hard support frame according to the patent CN202211310981.0 and the patent CN201510497397.4, so that the insulator is inconvenient to carry by a user when the insulator is replaced in a working position, and potential safety hazards are caused to the user.
Disclosure of Invention
Aiming at the problem that the insulator maintenance device is inconvenient to carry in the prior art, the invention provides the following technical scheme:
the drilling and straddling type angle steel tower insulator maintenance device comprises a mounting cylinder, a connecting plate and two groups of connecting plates, wherein the two groups of connecting plates are respectively positioned at two sides of a steel tower main body, the same group of two connecting plates are used for connecting two ends of an insulator with a cable and the steel tower main body, a synchronous pulling assembly is arranged in the mounting cylinder, and the synchronous pulling assembly drives the connecting plate to reciprocate in the horizontal direction;
the manual operation synchronous pulling assembly moves the connecting plate towards the direction of the mounting cylinder, the connecting plate fixed with the connecting plate moves along with the connecting plate to tighten the cable, and the insulator between the two connecting plates can be removed and replaced after the connecting plate is loosened.
As the preference of above-mentioned technical scheme, synchronous pulling subassembly includes first axis of rotation and two strands of first stay cords, first stay cord all sets up with the insulator parallel arrangement, first axis of rotation surface is provided with two first receipts line rolls, first stay cord one end winding is at first receipts line roll axis of rotation surface, and first stay cord tip and the pivot surface fixed connection of first receipts line roll.
As the preference of above-mentioned technical scheme, synchronous pulling subassembly still includes conversion portion one, conversion portion one will two first stay cords opposite directions or reverse movement, conversion portion one is with two first stay cords after moving in opposite directions, provides the position of placing for new insulator for the support bracket, conversion portion one includes two first lead screws, two sections reverse screw threads have been seted up on first lead screw surface, first slider has all been cup jointed on two sections screw surfaces of first lead screw, a set of two first slider respectively with two first stay cords fixed connection, another set of two first sliders respectively with two first receipts reel fixed connection.
As the preference of above-mentioned technical scheme, synchronous pulling subassembly still includes blocking portion one, blocking portion one includes first push rod and a plurality of first shrink piece, first shrink piece one end is provided with first push rod, through first spring fixed connection between first shrink piece and the first axis of rotation, the first tooth piece of pegging graft is rotated to the first shrink piece other end, first tooth piece is provided with the torsional spring with first shrink piece rotation grafting department, a plurality of first grafting grooves that correspond with it have been seted up to the installation section of thick bamboo surface.
As the preference of above-mentioned technical scheme, synchronous pulling subassembly still includes adjustment portion one, adjustment portion one includes two first mounting brackets, first mounting bracket middle part rotates and is provided with two first auxiliary wheels, one section of first stay cord passes through between two first auxiliary wheels, first mounting bracket top rotates and peg graft there is first regulating lever, first regulating lever top cup joints with corresponding first slider screw thread.
As the preference of above-mentioned technical scheme, synchronous pulling subassembly includes second axis of rotation, fixed axle and single strand second stay cord, fixed axle surface is provided with the installation piece, second axis of rotation surface is provided with the second receipts line volume, the equal two sections of second stay cord all set up with the insulator parallel arrangement, second stay cord one end winding is on second receipts line volume axis of rotation surface, and second stay cord tip and the pivot surface fixed connection of second receipts line volume, the connecting plate is passed to the second stay cord other end, and second stay cord tip and installation piece fixed connection, the inside two steering wheels that are provided with of connecting plate.
As the preference of above-mentioned technical scheme, synchronous pulling subassembly still includes conversion portion two, conversion portion two with second stay cord parallel department two sections are in opposite directions or reverse removal, conversion portion two with second stay cord parallel department two sections remove in opposite directions after, become the support bracket and provide the position of placing for new insulator, conversion portion two includes two second lead screws, two sections reverse screw threads have been seted up on second lead screw surface, second slider has all been cup jointed on second lead screw two sections screw surface, a set of two second slider respectively with two steering wheel fixed connection, another set of two second sliders respectively with second receipts line reel and installation piece fixed connection.
As an preference of the above technical solution, the synchronous pulling assembly further includes a second blocking portion, where the second blocking portion has the same structure as the first blocking portion.
As an preferable aspect of the foregoing disclosure, the synchronous pulling assembly further includes a second adjusting portion, where the second adjusting portion has the same structure as the first adjusting portion.
The maintenance method of the maintenance device for the drilling and span type angle steel tower insulator comprises the following steps,
s1, fixing a connecting plate;
after the user fixes the mounting cylinder and the steel tower main body, the connecting plate is pulled to move, and the end part of the connecting plate is fixed with the connecting plate connected with the cable;
s2, tensioning the cable and taking down the insulator;
the wrench is used for rotating the first rotating shaft to drive the first winding reel to rotate to retract the first pull rope, the connecting plate drives the yoke plates to move along with the first winding reel to tighten the cable, and the insulator between the two yoke plates can be removed and replaced along with the looseness of the insulator;
s3, forming a supporting bracket and placing an insulator;
manually rotating the two first screw rods to enable the two ends of the first pull ropes to gradually approach each other in sequence until the two first pull ropes reach a parallel state again to form a support bracket, and then placing a new insulator on the support bracket;
s4, loading an insulator;
fixing two ends of a new insulator with the yoke plate, and then disconnecting the fixation between the connecting plate and the yoke plate;
s5, maintaining another group of insulators;
and pulling the connecting plate to move to the other side of the steel tower, fixing the connecting plate and the other group of connecting plates connected with the cable, and replacing the insulator between the other group of connecting plates by using the same method.
The beneficial effects of the invention are as follows:
1. the cable is tensioned by utilizing the symmetrical pull ropes on the two sides of the insulator to shrink, the insulator can be taken down and replaced after being loosened, the soft pull ropes can be shrunk back into the mounting cylinder before use, so that the mounting cylinder is convenient for a user to carry, and the insulators on the same positions on the two sides of the steel tower main body can be replaced when the mounting cylinder is arranged on the same mounting position due to the soft characteristic of the soft pull ropes;
2. the positions of the pull ropes at the two sides can be adjusted through the arranged conversion parts, and after the pull ropes at the two sides reach a parallel state again, the two pull ropes at the bottom positions of the original insulators can form a supporting bracket to provide a placing position for the new insulators, so that the new insulators can be placed conveniently;
3. when the cable is tensioned, a single second pull rope is adopted to move the connecting plate, so that the situation that the contraction lengths of the two first pull ropes are different due to inconsistent winding in the winding process of the first winding reel is avoided;
4. when the conversion part is used for converting the stay ropes into the support brackets, the distance between the stay ropes can be directly adjusted by adopting the double-strand first stay ropes, and when the single-strand second stay ropes are adopted, the distance between the connecting plate and the mounting cylinder can be increased by adjusting the second stay ropes, and the stay ropes are required to be contracted again to re-tighten the cables.
Drawings
FIG. 1 is a view showing the mounting position of a yoke plate in the embodiment;
FIG. 2 is a schematic diagram showing the overall structure of the embodiment;
FIG. 3 is a left side view of the synchronous pulling assembly of example 1;
fig. 4 is a right side view showing a first conversion section in embodiment 1;
fig. 5 is a right side view of the first adjusting portion in embodiment 1;
FIG. 6 is a schematic view showing the installation of the first blocking portion in embodiment 1;
FIG. 7 is a schematic view showing the installation of the first tooth block in embodiment 1;
FIG. 8 is a left side view of the synchronous pulling assembly of example 2;
fig. 9 is a right side view showing a second conversion section in embodiment 2;
fig. 10 is a right side view of the second adjusting portion in embodiment 2;
fig. 11 is a schematic view showing the installation of the second blocking portion in embodiment 2.
In the figure: 10. a steel tower body; 20. an insulator; 30. a yoke plate; 40. a mounting cylinder; 50. a connecting plate; 61. a first rotation shaft; 62. a first pull rope; 63. a first take-up reel; 64. a first conversion unit; 641. a first screw rod; 642. a first slider; 65. a first blocking part; 651. a first push rod; 652. a first shrink block; 653. a first push block; 654. a first tooth block; 655. a first socket groove; 656. a first spring; 66. an adjusting part I; 661. a first mounting frame; 662. a first auxiliary wheel; 663. a first adjustment lever; 71. a second rotation shaft; 72. a second pull rope; 73. a second take-up reel; 74. a second conversion unit; 741. a second screw rod; 742. a second slider; 75. a second blocking part; 751. a second push rod; 752. a second shrink block; 753. a second push block; 754. a second tooth block; 755. a second insertion groove; 756. a second spring; 76. an adjusting part II; 761. a second mounting frame; 762. a second auxiliary wheel; 763. a second adjustment lever; 77. a fixed shaft; 78. a steering wheel; 79. and (5) installing a block.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the embodiments.
Example 1
In fig. 1-2, the maintenance device for the drilling and straddling type angle steel tower insulator comprises a mounting cylinder 40, a connecting plate 50 and two groups of connecting plates 30, wherein the two groups of connecting plates 30 are respectively positioned at two sides of a steel tower main body 10, the same group of two connecting plates 30 are used for connecting two ends of an insulator 20 with a cable and the steel tower main body 10, the connecting plate 50 and the connecting plates 30 can be fixed in a plurality of fixing methods such as splicing, clamping and fixing, bolt fixing and the like, the connecting plate 50 is required to be fixed below the connecting plates 30, and a synchronous pulling assembly is arranged in the mounting cylinder 40 and drives the connecting plate 50 to reciprocate in the horizontal direction;
the manual synchronous pulling assembly moves the connecting plate 50 towards the mounting cylinder 40, the yoke plates 30 fixed with the connecting plate 50 move along with the connecting plate to tighten the cable, and the insulators 20 between the two yoke plates 30 can be removed and replaced along with the looseness.
In fig. 3-4, the synchronous pulling assembly includes a first rotating shaft 61 and two first pull ropes 62, the end portion of the first rotating shaft 61 is provided with a bump corresponding to a wrench, the first pull ropes 62 are all parallel to the insulator 20, two first winding reels 63 are provided on the surface of the first rotating shaft 61, one end of each first pull rope 62 is wound on the rotating shaft surface of each first winding reel 63, and the end portion of each first pull rope 62 is fixedly connected with the rotating shaft surface of each first winding reel 63.
When the connecting plate 50 needs to be moved, a user rotates the first rotating shaft through the bump position by using a wrench, and the two first winding-up rolls 63 move along with the first rotating shaft to simultaneously retract the two first pull ropes 62, so that the connecting plate 50 moves along with the first winding-up rolls to tighten the cable.
The first pull ropes 62 symmetrical on two sides of the insulator 20 are used for shrinking so that the connecting plate 50 tightens the cable, the insulator 20 can be taken down and replaced after being loosened, the soft first pull ropes 62 can be shrunk back into the mounting cylinder 40 before being used, the carrying by a user is convenient, and the insulator 20 on two sides of the steel tower body 10 at the same position can be replaced when the mounting cylinder 40 is mounted at the same mounting position due to the soft characteristic of the soft first pull ropes 62.
The maintenance method of the maintenance device for the drilling and straddle type angle steel tower insulator comprises the following steps,
s1, fixing a connecting plate 50;
after the user fixes the installation cylinder 40 and the steel tower body 10, the user pulls the connecting plate 50 to move and fixes the end of the connecting plate with the connecting plate 30 connected with the cable;
s2, tensioning the cable and removing the insulator 20;
the first rotating shaft 61 is rotated by using a wrench to drive the first winding reel 63 to rotate so as to retract the first pull rope 62, the connecting plate 50 drives the connecting plates 30 to move so as to tighten the cable, and the insulator 20 between the two connecting plates 30 can be removed and replaced along with the looseness;
s3, forming a supporting bracket and placing an insulator 20;
manually rotating the two first screw rods 641 to gradually approach the two ends of the first pull ropes 62 in sequence until the two first pull ropes 62 reach a parallel state again to form a support bracket, and then placing a new insulator 20 on the support bracket;
s4, loading an insulator 20;
fixing both ends of the new insulator 20 to the yoke plate 30, and then disconnecting the connection plate 50 from the yoke plate 30;
s5, maintaining the other group of insulators 20;
the connection plate 50 is pulled to move to the other side of the steel tower, and after the connection plate 50 is fixed with the other group of yoke plates 30 connected with the cable, the insulator 20 between the other group of yoke plates 30 is replaced by the same method.
In the technical scheme of the maintenance device and the maintenance method for the drilling straddle type angle steel tower insulator, the first pull ropes 62 symmetrical at two sides of the insulator 20 are utilized to shrink so that the connecting plate 50 tightens the cable, the insulator 20 can be taken down and replaced after being loosened, the soft first pull ropes 62 can be shrunk back into the mounting cylinder 40 before being used, the mounting cylinder 40 is convenient for a user to carry, and the insulator 20 at the same position at two sides of the steel tower body 10 can be replaced when being mounted at the same mounting position due to the soft characteristic of the mounting cylinder 40.
In fig. 4-5, the synchronous pulling assembly further includes a first conversion portion 64, the first conversion portion 64 moves the two first pull ropes 62 in opposite directions or in opposite directions, the first conversion portion 64 moves the two first pull ropes 62 in opposite directions, and provides a placement position for the new insulator 20 for the support bracket, the first conversion portion 64 includes two first screw rods 641, two sections of reverse threads are provided on the surfaces of the first screw rods 641, first sliding blocks 642 are sleeved on two sections of threaded surfaces of the first screw rods 641, one group of two first sliding blocks 642 are fixedly connected with the two first pull ropes 62 respectively, and the other group of two first sliding blocks 642 are fixedly connected with the two first winding rolls 63 respectively.
After the old insulator 20 is removed, the user manually rotates the two first lead screws 641 to rotate, the first lead screws 641 rotate to drive the corresponding two first sliding blocks 642 to move in opposite directions, the first winding 63 moves along with the surface of the first rotating shaft 61, one ends of the two first pull ropes 62 are gradually close, the other ends of the two first pull ropes 62 are also gradually close under the drive of the first sliding blocks 642 until the two first pull ropes 62 reach a parallel state again, and the two first pull ropes 62 form a supporting bracket to provide a placing position for the new insulator 20.
The position of two first stay ropes 62 can be adjusted through the conversion portion 64 that sets up, and support bracket can be constituteed to two first stay ropes 62, can provide the position of placing new insulator 20, conveniently places new insulator 20, adopts two first stay ropes 62 to directly adjust the distance between the stay ropes, and when adopting single second stay rope 72, adjusts second stay rope 72 and can make the distance between connecting plate 50 and mounting cylinder 40 increase, need shrink the stay rope again and take up again the cable.
In fig. 6-7, the synchronous pulling assembly further includes a first blocking portion 65, the first blocking portion 65 includes a first push rod 651 and a plurality of first shrinkage blocks 652, threads are sleeved between a section of surface of the first push rod 651 and the first rotating shaft 61, one end of the first shrinkage block 652 is provided with a first push block 653, the first shrinkage block 652 is fixedly connected with the first rotating shaft 61 through a first spring 656, a first tooth block 654 is rotatably inserted at the other end of the first shrinkage block 652, a torsion spring is arranged at a rotary inserting position of the first tooth block 654 and the first shrinkage block 652, and a plurality of first inserting grooves 655 corresponding to the first inserting grooves are formed in the surface of the mounting cylinder 40.
When the first rotating shaft 61 drives the first winding-up reel 63 to rotate to shrink the first pull rope 62, the first tooth blocks 654 pass through the first inserting grooves 655 along with the rotation of the first rotating shaft 61, the first tooth blocks 654 are pushed to deflect by the passing first inserting grooves 655 and deform by torsion springs in a twisting manner, after the first tooth blocks 654 reach the next first inserting grooves 655, the torsion springs reset to push the first tooth blocks 654 to reset, when the first rotating shaft 61 stops rotating, the first tooth blocks 654 stop the trend of the first inserting grooves 655 to reversely move, the first rotating shaft 61 is prevented from reversely rotating to loosen the first pull rope 62, and when the first pull rope 62 needs to be extended, the first push rod 651 is rotated to leave the position of the first push block 653, the first springs 656 in a compressed state move shrinkage blocks, the shrinkage blocks drive the first tooth blocks to shrink back into the first rotating shaft 61, and the first rotating shaft 61 can reversely rotate to stretch the first pull rope 62.
The first blocking part 65 can only rotate in one direction, so that the first pulling rope 62 can be conveniently retracted, cable slackening caused by reverse rotation of the first rotating shaft 61 is avoided, the first blocking part 65 can retract into the first rotating shaft 61, and the first rotating shaft 61 can reversely rotate to extend the first pulling rope 62.
In fig. 3 and 5, the synchronous pulling assembly further includes an adjusting portion one 66, the adjusting portion one 66 includes two first mounting frames 661, two first auxiliary wheels 662 are rotatably disposed in the middle of the first mounting frames 661, one section of the first pull rope 62 passes between the two first auxiliary wheels 662, a first adjusting rod 663 is rotatably inserted at the top of the first mounting frames 661, and the top of the first adjusting rod 663 is in threaded sleeve connection with the corresponding first sliding block 642.
After the connecting plate 50 is fixedly connected with the yoke plate 30, the first adjusting rod 663 is rotated to drive the first mounting frame 661 to move upwards or downwards, the first auxiliary wheel 662 adjusts the positions of the first pull ropes 62 accordingly, so that the two first pull ropes 62 are parallel to the insulators 20, the first conversion part 64 is convenient to adjust the positions of the first pull ropes 62, the support bracket formed by the first pull ropes 62 is parallel to the insulators 20, the support bracket can normally support new insulators 20, meanwhile, the first mounting frame 661 can be connected with the first sliding blocks 642 through the first adjusting rod 663, and the first mounting frame 661 can move along with the first sliding blocks 642 to drive the first pull ropes 62 to perform position conversion.
The first pull rope 62 can be adjusted from the bottom of the insulator 20 through the first adjusting part 66, so that two first pull ropes 62 are parallel to the center line of the insulator 20, and meanwhile, the height between the connecting plate 50 and the yoke plate 30 can be adjusted, so that the distance between the first pull ropes 62 and the center of the insulator 20 is ensured to be one third or one fourth of the radius of the insulator 20, and the two first pull ropes 62 are used as supporting brackets to support the new insulator 20.
Example 2
In fig. 8-9, the synchronous pulling assembly comprises a second rotating shaft 71, a fixed shaft 77 and a single second pull rope 72, a protruding block corresponding to a wrench is arranged at the end of the second rotating shaft 71, a mounting block 79 is arranged on the surface of the fixed shaft 77, a second winding reel 73 is arranged on the surface of the second rotating shaft 71, two sections of the second pull rope 72 are arranged in parallel with the insulator 20, one end of the second pull rope 72 is wound on the rotating shaft surface of the second winding reel 73, the end of the second pull rope 72 is fixedly connected with the rotating shaft surface of the second winding reel 73, the other end of the second pull rope 72 penetrates through the connecting plate 50, the end of the second pull rope 72 is fixedly connected with the mounting block 79, and two steering wheels 78 are arranged inside the connecting plate 50.
When it is desired to move the connection plate 50, the user rotates the second rotation shaft through the bump position using a wrench, the second winding reel 73 moves with it to retract the second pull cord 72, and the connection plate 50 moves with it to tighten the cable after the second pull cord 72 is turned by the two turning wheels 78.
The second pull ropes 72 symmetrical at two sides of the insulator 20 are contracted to enable the connecting plate 50 to tighten the cable, the insulator 20 can be removed and replaced after being loosened, in the second embodiment, the single second pull rope 72 is adopted to move the connecting plate 50, and the situation that two first pull ropes 62 deviate due to inconsistent winding in the winding process of the first winding reel 63 is avoided.
In fig. 9-10, the synchronous pulling assembly further includes a second conversion portion 74, the second conversion portion 74 moves two sections of the parallel portion of the second pull rope 72 in opposite directions or in opposite directions, after the second conversion portion 74 moves two sections of the parallel portion of the second pull rope 72 in opposite directions, the second conversion portion 74 provides a placement position for the new insulator 20 for the support bracket, the second conversion portion 74 includes two second screw rods 741, two sections of reverse threads are provided on the surface of the second screw rods 741, two sections of threaded surfaces of the second screw rods 741 are sleeved with second sliding blocks 742, one group of two second sliding blocks 742 are fixedly connected with two steering wheels 78 respectively, and the other group of two second sliding blocks 742 are fixedly connected with the second winding reel 73 and the mounting block 79 respectively.
After the old insulator 20 is removed, the user manually rotates two second lead screws 741 to rotate the two second lead screws 741, one second lead screw 741 rotates to drive the corresponding two second sliding blocks 742 to enable the two steering wheels 78 to move oppositely, the distance between the two second sliding blocks 742 is reduced to enable the middle part of the second pull rope 72 to approach gradually, the connecting plate 50 reversely resets for a certain distance, the other second lead screw 741 rotates to drive the corresponding two second sliding blocks 742 to move oppositely, the second winding reel 73 and the mounting block 79 move on the surfaces of the second rotating shaft 71 and the fixed shaft 77, two ends of the second pull rope 72 are gradually approaching, the connecting plate 50 reversely resets for a certain distance, after the two second pull ropes 72 reach a parallel state again, the user continues to rotate the second rotating shaft 71 to shrink the second pull rope 72 partially, the connecting plate 50 returns to the stretching position, and the two sections of the second pull rope 72 form a supporting bracket to provide a placing position for the new insulator 20.
The position of the second pull rope 72 can be adjusted through the second conversion part 74, after the second pull rope 72 reaches the parallel state again, the two sections of the second pull rope 72 positioned at the bottom of the original insulator 20 can form a supporting bracket to provide a placing position for the new insulator 20, so that the new insulator 20 can be placed conveniently.
In fig. 11, the synchronous pulling assembly further includes a second blocking portion 75, the second blocking portion 75 has the same structure as the first blocking portion 65, the second blocking portion 75 includes a second push rod 751 and a plurality of second shrinkage blocks 752, a section of surface of the second push rod 751 is in threaded connection with the second rotating shaft 71, one end of the second shrinkage block 752 is provided with a second push block 753, the second shrinkage block 752 is fixedly connected with the second rotating shaft 71 through a second spring 756, the other end of the second shrinkage block 752 is rotationally inserted with a second tooth block 754, a torsional spring is disposed at a rotationally inserted position of the second tooth block 754 and the second shrinkage block 752, and a plurality of second inserting grooves 755 corresponding to the second inserting grooves are formed in the surface of the mounting cylinder 40.
The second blocking part 75 enables the second rotating shaft 71 to rotate in one direction only, the second pull rope 72 is conveniently retracted, cable looseness caused by reverse rotation of the second rotating shaft 71 is avoided, the second blocking part 75 can retract into the second rotating shaft 71, and the second rotating shaft 71 can reversely rotate to extend the second pull rope 72.
In fig. 8 and 10, the synchronous pulling assembly further includes a second adjusting portion 76, the second adjusting portion 76 has the same structure as the second blocking portion 66, the second adjusting portion 76 includes two second mounting frames 761, two second auxiliary wheels 762 are rotatably disposed in the middle of the second mounting frames 761, a section of the second pull rope 72 passes between the two second auxiliary wheels 762, a second adjusting rod 763 is rotatably inserted into the top of the second mounting frames 761, and the top of the second adjusting rod 763 is in threaded sleeve connection with the corresponding second slider 742.
The second stay cord 72 can be adjusted to be in a parallel state with the center line of the insulator 20 by the second adjusting part 76, and the height between the connecting plate 50 and the yoke plate 30 can be adjusted to ensure that the distance between the second stay cord 72 and the center of the insulator 20 is one third or one fourth of the radius of the insulator 20, so that the two sections of the second stay cord 72 become support brackets to support the new insulator 20.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting.
Claims (10)
1. Drilling and straddle type angle steel tower insulator maintenance device includes: the device is characterized in that a synchronous pulling assembly is arranged in the mounting barrel (40), and the synchronous pulling assembly drives the connecting plate (50) to reciprocate in the horizontal direction;
the manual synchronous pulling assembly moves the connecting plate (50) towards the direction of the mounting cylinder (40), the connecting plates (30) fixed with the connecting plate (50) move along with the connecting plate to tighten the cable, and the insulators (20) between the two connecting plates (30) are loosened along with the connecting plates to be removed and replaced.
2. The maintenance device for the drilling span type angle steel tower insulator according to claim 1, wherein the synchronous pulling assembly comprises a first rotating shaft (61) and two first pull ropes (62), the first pull ropes (62) are arranged in parallel with the insulator (20), two first winding reels (63) are arranged on the surface of the first rotating shaft (61), one end of each first pull rope (62) is wound on the rotating shaft surface of each first winding reel (63), and the end parts of the first pull ropes (62) are fixedly connected with the rotating shaft surface of each first winding reel (63).
3. The maintenance device for the drilling span type angle steel tower insulator according to claim 2, wherein the synchronous pulling assembly further comprises a first conversion part (64), the first conversion part (64) moves two first pull ropes (62) oppositely or reversely, the first conversion part (64) moves the two first pull ropes (62) oppositely to form a support bracket to provide a placement position for a new insulator (20), the first conversion part (64) comprises two first lead screws (641), two sections of reverse threads are formed on the surfaces of the first lead screws (641), first sliding blocks (642) are sleeved on the surfaces of the two sections of threads of the first lead screws (641), one group of two first sliding blocks (642) are fixedly connected with the two first pull ropes (62) respectively, and the other group of two first sliding blocks (642) are fixedly connected with the two first winding rolls (63) respectively.
4. The maintenance device for the drilling span type angle steel tower insulator according to claim 2, wherein the synchronous pulling assembly further comprises a first blocking part (65), the first blocking part (65) comprises a first push rod (651) and a plurality of first shrinkage blocks (652), one ends of the first shrinkage blocks (652) are provided with first push blocks (653), the first shrinkage blocks (652) are fixedly connected with the first rotating shaft (61) through first springs (656), the other ends of the first shrinkage blocks (652) are rotatably connected with first tooth blocks (654), torsion springs are arranged at rotary connection positions of the first tooth blocks (654) and the first shrinkage blocks (652), and a plurality of first connection grooves (655) corresponding to the first tooth blocks are formed in the surface of the mounting cylinder (40).
5. The maintenance device for the drilling span type angle steel tower insulator according to claim 2, wherein the synchronous pulling assembly further comprises an adjusting part I (66), the adjusting part I (66) comprises two first installation frames (661), two first auxiliary wheels (662) are rotatably arranged in the middle of each first installation frame (661), one section of a first stay rope (62) passes through between the two first auxiliary wheels (662), a first adjusting rod (663) is rotatably inserted into the top of each first installation frame (661), and the top of each first adjusting rod (663) is in threaded sleeve connection with a corresponding first sliding block (642).
6. The drilling span type angle steel tower insulator maintenance device according to claim 1, wherein the synchronous pulling assembly comprises a second rotating shaft (71), a fixed shaft (77) and a single-strand second pull rope (72), a mounting block (79) is arranged on the surface of the fixed shaft (77), a second winding reel (73) is arranged on the surface of the second rotating shaft (71), two sections of the second pull rope (72) are arranged in parallel with the insulator (20), one end of the second pull rope (72) is wound on the rotating shaft surface of the second winding reel (73), the end part of the second pull rope (72) is fixedly connected with the rotating shaft surface of the second winding reel (73), the other end of the second pull rope (72) penetrates through the connecting plate (50), the end part of the second pull rope (72) is fixedly connected with the mounting block (79), and two steering wheels (78) are arranged inside the connecting plate (50).
7. The maintenance device for the drilling span type angle steel tower insulator according to claim 6, wherein the synchronous pulling assembly further comprises a second conversion part (74), the second conversion part (74) enables two sections of parallel parts of the second pull rope (72) to move oppositely or reversely, after the second conversion part (74) enables the two sections of parallel parts of the second pull rope (72) to move oppositely, the second conversion part (74) serves as a supporting bracket to provide a placement position for a new insulator (20), the second conversion part (74) comprises two second lead screws (741), two sections of reverse threads are formed on the surfaces of the second lead screws (741), two sections of thread surfaces of the second lead screws (741) are sleeved with second sliding blocks (742), one group of two second sliding blocks (742) are fixedly connected with two steering wheels (78) respectively, and the other group of two second sliding blocks (742) are fixedly connected with a second winding reel (73) and a mounting block (79) respectively.
8. The maintenance device of a drill-span angle tower insulator of claim 6, wherein the synchronous pulling assembly further comprises a second blocking portion (75), the second blocking portion (75) being identical in structure to the first blocking portion (65).
9. The maintenance device for a drill span type angle tower insulator of claim 6, wherein the synchronous pulling assembly further comprises a second adjusting part (76), the second adjusting part (76) and the first adjusting part (66) have the same structure.
10. The maintenance method of a maintenance device for a drill span type angle steel tower insulator according to any one of the claims 1 to 5, comprising the steps of,
s1, fixing a connecting plate (50);
after the user fixes the installation cylinder (40) and the steel tower main body (10), the connecting plate (50) is pulled to move and the end part of the connecting plate is fixed with the connecting plate (30) connected with the cable;
s2, tensioning the cable and removing the insulator (20);
the first winding reel (63) is driven to rotate by using a wrench to retract the first pull rope (62), the connecting plate (50) drives the connecting plates (30) to move along with the first winding reel to tighten the cable, and the insulator (20) between the two connecting plates (30) can be removed and replaced along with the looseness of the connecting plates;
s3, forming a supporting bracket and placing an insulator (20);
manually rotating the two first screw rods (641) to enable the two ends of the first pull ropes (62) to gradually approach each other in sequence until the two first pull ropes (62) reach a parallel state again to form a support bracket, and then placing a new insulator (20) on the support bracket;
s4, loading an insulator (20);
fixing two ends of a new insulator (20) with the yoke plate (30), and then disconnecting the fixing between the connecting plate (50) and the yoke plate (30);
s5, maintaining the other group of insulators (20);
and pulling the connecting plate (50) to move to the other side of the steel tower, fixing the connecting plate (50) and the other group of connecting plates (30) connected with the cable, and replacing the insulators (20) between the other group of connecting plates (30) by using the same method.
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| CN202311655561.0A CN117712915B (en) | 2023-12-05 | 2023-12-05 | Maintenance device and maintenance method for drilling span type angle steel tower insulator |
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| CN202311655561.0A CN117712915B (en) | 2023-12-05 | 2023-12-05 | Maintenance device and maintenance method for drilling span type angle steel tower insulator |
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| CN117712915B CN117712915B (en) | 2024-06-11 |
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| CN117712915B (en) | 2024-06-11 |
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