CN111181078A - 35KV strain insulator string replacing device and operation method thereof - Google Patents
35KV strain insulator string replacing device and operation method thereof Download PDFInfo
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- CN111181078A CN111181078A CN202010174576.5A CN202010174576A CN111181078A CN 111181078 A CN111181078 A CN 111181078A CN 202010174576 A CN202010174576 A CN 202010174576A CN 111181078 A CN111181078 A CN 111181078A
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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
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Abstract
The application discloses a 35KV strain insulator string replacing device and an operation method thereof, wherein the device comprises: the device comprises a U-shaped ring clamp, a strain lead clamp, two connecting rods and lead screw assemblies which correspond to the connecting rods one by one; a clamping groove is formed in the U-shaped ring clamp in the thickness direction, and two end portions of the U-shaped ring clamp are connected with the first end of the connecting rod through the screw rod assembly respectively; the clamping groove is detachably provided with a locking piece; the tension-resistant conducting wire clamp is detachably clamped on the tension-resistant conducting wire, and two end parts of the tension-resistant conducting wire clamp are respectively connected with the second end of the connecting rod; the screw rod assembly comprises a screw rod, a first nut and a handle; the first end of the screw rod upwards penetrates through the U-shaped ring clamp, and the second end of the screw rod is connected with the first end of the connecting rod; the first nut is rotationally arranged on the U-shaped ring clamp and is in threaded fit with the screw; the handle is connected with the first nut and used for driving the first nut to rotate. The insulator string replacement device is integrally suitable for insulator string replacement operation between the U-shaped ring and the strain conductor, is simple and convenient to operate, and ensures operation efficiency.
Description
Technical Field
The application relates to the technical field of electric power operation, in particular to a 35KV strain insulator string replacing device and an operation method thereof.
Background
The 35kV line belongs to an important part of distribution lines in China, has the characteristics of larger transmission capacity and smaller line loss than 10kV distribution lines and the like, and is an important voltage class for urban suburbs and rural power supply networks in China. The 35kV line has the characteristics of long line, poor operating environment and more equipment, and is easy to break down under the operation of atmospheric overvoltage, dirt or other external factors. Once the distribution line has a fault, the normal production, life and power supply reliability of a user are directly influenced. The live-line emergency repair and maintenance operation of the 35kV line can be carried out, the safe operation level and the power supply reliability of the distribution line can be greatly improved, and the method has great economic and social benefits.
Because the structural characteristics of the 35kV line are between transmission and distribution lines, 4 disc insulators are generally adopted as the tension insulators, and the structural length is slightly longer than the minimum safe distance of live working. The existing replacing equipment for replacing the insulator string is complex in operation and low in operating efficiency.
Disclosure of Invention
In view of the above, a first object of the present application is to provide a device for replacing a 35KV strain insulator string, which is simple to operate and ensures operation efficiency and operation safety.
The second purpose of the application is to provide an operation method of the 35KV strain insulator string replacing device.
In order to achieve the above technical object, the present application provides a device for replacing a 35KV strain insulator string, comprising: the device comprises a U-shaped ring clamp, a strain lead clamp, two connecting rods and lead screw assemblies which correspond to the connecting rods one by one;
a clamping groove is formed in the U-shaped ring clamp in the thickness direction, and two end parts of the U-shaped ring clamp are connected with the first end of the connecting rod through the screw rod assembly respectively;
the clamping groove is detachably provided with a locking piece;
the tension-resistant conducting wire fixture is detachably clamped on the tension-resistant conducting wire, and two end parts of the tension-resistant conducting wire fixture are respectively connected with the second end of the connecting rod;
the screw rod assembly comprises a screw rod, a first nut and a handle;
the first end of the screw rod penetrates through the U-shaped ring clamp upwards, and the second end of the screw rod is connected with the first end of the connecting rod;
the first nut is rotationally arranged on the U-shaped ring clamp and is in threaded fit with the screw;
the handle is connected with the first nut and used for driving the first nut to rotate.
Further, the card slot comprises a first card slot part and a second card slot part;
the opening end of the first clamping groove part penetrates through the bottom of the U-shaped ring clamp downwards, and the arc-shaped end is communicated with the second clamping groove part;
the second clamping groove portion penetrates through the top of the U-shaped ring clamp upwards and is perpendicular to the first clamping groove portion.
Further, the locking piece comprises a bolt and a second nut matched with the bolt;
the U-shaped ring clamp is provided with a through hole which is communicated with the first clamping groove part and through which the bolt can movably pass;
the second nut is sleeved on the bolt on the rod section penetrating through the U-shaped ring clamp.
Furthermore, the tension lead clamp comprises a fixed seat and a clamping mechanism;
the clamping mechanism is installed on the fixed seat and is provided with a clamping cavity for the tension-resistant lead to pass through.
Furthermore, the clamping mechanism comprises two clamping blocks, first connecting rods in one-to-one correspondence with the clamping blocks and second connecting rods in one-to-one correspondence with the clamping blocks;
the first side surface of the fixed seat is symmetrically provided with sliding chutes inclined towards the central line on two sides of the central line;
the sliding grooves positioned on the two sides of the central line are gradually narrowed along the direction from the bottom to the top of the fixed seat;
the two clamping blocks are respectively installed on the sliding grooves on two sides of the central line in a sliding mode, and arc-shaped grooves are respectively formed in opposite surfaces of the two clamping blocks;
the clamping cavity is formed between the arc-shaped grooves;
the first end of the first connecting rod is hinged with the two ends of the bottom of the fixed seat respectively, and the second end of the first connecting rod is hinged with the second end of the connecting rod respectively;
the first ends of the second connecting rods are respectively hinged with the clamping blocks, and the second ends of the second connecting rods are respectively hinged with the first connecting rods.
Furthermore, the inner side wall of the arc-shaped groove is provided with anti-skid grains.
Further, the first end of the first connecting rod is hinged with the second end of the connecting rod through a connecting piece;
the first end of the connecting piece is hinged with the first end of the first connecting rod, and the second end of the connecting piece is hinged with the second end of the connecting rod.
Further, the bottle supporting frame is further included;
the first end of the bottle supporting frame is connected with the U-shaped ring clamp, and the second end of the bottle supporting frame is connected with the strain lead clamp.
Further, the bottle supporting frame comprises at least two guide rods, a third connecting rod and a supporting connecting plate;
the supporting yoke plate is arranged on the strain clamp and is connected with the strain lead clamp through a third connecting rod, and two end parts of the supporting yoke plate are respectively provided with limiting hooks which are in one-to-one correspondence with the guide rods;
the two guide rods are vertically and symmetrically arranged, the first ends of the guide rods are hinged with the U-shaped ring clamp, and the second ends of the guide rods movably penetrate through the limiting hooks.
An operation method of a 35KV strain insulator string replacing device comprises the following steps:
connecting and installing the tension lead clamp and the connecting rod;
fixing the tension lead clamp on the tension lead;
connecting and installing the U-shaped ring fixture and the screw rod assembly;
fixing the U-shaped ring fixture on a U-shaped ring of a cross arm, and aligning the screw rod assembly with the connecting rod;
connecting the connecting rod with the screw rod assembly;
adjusting the screw rod assembly to tighten the tension-resistant lead;
replacing the insulator between the cross arm and the tension resistant lead;
and (5) removing the replacing device.
According to the technical scheme, the replacing device is provided with the U-shaped ring clamp, and the locking piece on the U-shaped ring clamp is fixed on the U-shaped ring of the cross arm; the tension-resistant lead clamp is fixed on the tension-resistant lead; the connecting rod that sets up realizes being connected between strain insulator wire fixture and the U type ring fixture, utilizes the lead screw subassembly to realize connecting rod and U type ring fixture's being connected moreover fixed, can play the effect of tightening up to the strain insulator wire through the regulation of lead screw subassembly, and then relaxs the insulator string between strain insulator wire and the cross arm, makes things convenient for insulator string's change. The insulator string replacement device is integrally suitable for insulator string replacement operation between the U-shaped ring and the strain conductor, is simple and convenient to operate, and ensures operation efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic side view of a 35KV strain insulator string replacing apparatus provided in the present application;
fig. 2 is a schematic diagram of a second axial side of a 35KV strain insulator string replacing device provided in the present application;
fig. 3 is a schematic structural view of a U-shaped ring clamp of a 35KV strain insulator string replacement device provided in the present application;
fig. 4 is a schematic structural view of a tension conductor clamp of a 35KV tension insulator string replacing device provided in the present application;
FIG. 5 is an enlarged view of the position A in FIG. 1;
fig. 6 is a schematic view of a partial structure of a handle of a 35KV strain insulator string replacing device provided in the present application;
in the figure: 1. a U-shaped ring clamp; 11. a first slot part; 12. a second slot portion; 13. a first mounting hole; 14. a second mounting hole; 15. a locking member; 151. a bolt; 152. a second nut; 21. a first nut; 211. a gear; 22. a screw; 23. a handle; 231. a clamping block; 232. a deflector rod; 24. fixing the rod; 3. a tension lead clamp; 31. a fixed seat; 311. a chute; 312. mounting blocks; 313. mounting grooves; 32. a first link; 321. a connecting member; 33. a second link; 34. a clamping block; 341. an arc-shaped slot; 41. a guide bar; 42. supporting the yoke plate; 43. a limiting hook; 44. a third link; 5. a connecting rod; 6. a strain conductor; 7. strain clamp; 8. an insulator string; 9. and a U-shaped ring.
Detailed Description
The technical solutions of the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without any creative effort belong to the protection scope of the embodiments in the present application.
In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should be noted that the terms "mounted," "connected," and "connected" are used broadly and are defined as, for example, a fixed connection, an exchangeable connection, an integrated connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements, unless otherwise explicitly stated or limited. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.
The embodiment of the application discloses a 35KV strain insulator string replacing device and an operation method thereof.
Referring to fig. 1 and fig. 2, an embodiment of a 35KV strain insulator string replacing apparatus and an operating method thereof provided in the embodiment of the present application includes:
the device comprises a U-shaped ring clamp 1, a tension lead clamp 3, two connecting rods 5 and lead screw assemblies which correspond to the connecting rods 5 one by one; a clamping groove is formed in the U-shaped ring fixture 1 in the thickness direction, and two end portions of the U-shaped ring fixture 1 are connected with the first end of the connecting rod 5 through the screw rod assembly respectively; the locking piece 15 is detachably arranged on the clamping groove; the tension-resistant lead clamp 3 is detachably clamped on the tension-resistant lead 6, and two end parts of the tension-resistant lead clamp 3 are respectively connected with the second end of the connecting rod 5; the screw rod assembly comprises a screw rod 22, a first nut 21 and a handle 23; a first end of the screw rod 22 upwards penetrates through the U-shaped ring clamp 1, and a second end of the screw rod is connected with a first end of the connecting rod 5; the first nut 21 is rotatably arranged on the U-shaped ring clamp 1 and is in threaded fit with the screw 22; the handle 23 is connected to the first nut 21 for driving the first nut 21 to rotate.
Specifically, a clamping groove arranged in the thickness direction on the U-shaped ring clamp 1 facilitates the clamping of the U-shaped ring 9 of the cross arm, and the locking piece 15 is utilized to further fix the U-shaped ring clamp 1. In this embodiment, the second end of the screw 22 may be fixedly connected to the connecting rod 5 through a U-shaped connector as shown in fig. 1, which is not limited specifically. The working principle of the screw rod assembly is as follows: after the U-shaped ring clamp 1, the connecting rod 5, the lead screw assembly and the strain lead clamp 3 are installed; the handle 23 can be remotely turned through the operating rod to drive the first nut 21 to rotate; first nut 21 rotates and can and take place screw thread normal running fit between the screw rod 22, because first nut 21 is fixed in vertical direction, consequently according to the lead screw principle, relative movement also can take place for screw rod 22 to can realize driving strain conductor fixture 3 and remove, make strain conductor 6 tighten up, make things convenient for subsequent insulator string 8 to change the operation. According to the technical scheme, the U-shaped ring fixture 1 of the replacing device provided by the application is fixed on the U-shaped ring 9 of the cross arm by the locking piece 15; the tension-resistant lead clamp 3 is fixed on the tension-resistant lead 6; connecting rod 5 that sets up realizes being connected between strain insulator wire fixture 3 and U type ring fixture 1, utilizes the lead screw subassembly to realize connecting rod 5 fixed with being connected of U type ring fixture 1 moreover, can play the effect of tightening up to strain insulator wire 6 through the regulation of lead screw subassembly, and then relaxes insulator string 8 between strain insulator wire 6 and the cross arm, makes things convenient for insulator string 8's change. The insulator string replacement device is integrally suitable for insulator string replacement operation between the U-shaped ring and the strain conductor, operation is simple and convenient, and operation efficiency is guaranteed.
The first embodiment of the device for replacing 35KV strain insulator string and the operation method thereof provided in the embodiment of the present application is described above, and the second embodiment of the device for replacing 35KV strain insulator string and the operation method thereof provided in the embodiment of the present application is described below, with reference to fig. 1 to 6.
A35 KV strain insulator string replacing device comprises: the device comprises a U-shaped ring clamp 1, a tension lead clamp 3, two connecting rods 5 and lead screw assemblies which correspond to the connecting rods 5 one by one; a clamping groove is formed in the U-shaped ring fixture 1 in the thickness direction, and two end portions of the U-shaped ring fixture 1 are connected with the first end of the connecting rod 5 through the screw rod assembly respectively; the locking piece 15 is detachably arranged on the clamping groove; the tension-resistant lead clamp 3 is detachably clamped on the tension-resistant lead 6, and two end parts of the tension-resistant lead clamp 3 are respectively connected with the second end of the connecting rod 5; the screw rod assembly comprises a screw rod 22, a first nut 21 and a handle 23; a first end of the screw rod 22 upwards penetrates through the U-shaped ring clamp 1, and a second end of the screw rod is connected with a first end of the connecting rod 5; the first nut 21 is rotatably arranged on the U-shaped ring clamp 1 and is in threaded fit with the screw 22; the handle 23 is connected to the first nut 21 for driving the first nut 21 to rotate.
Further, as shown in fig. 1 to 3, the clamping groove includes a first clamping groove portion 11 and a second clamping groove portion 12 communicated with the first clamping groove portion 11, so that the first U-shaped ring 9 close to the insulator string 8 is conveniently clamped and fixed, an avoiding space can be provided to avoid the second U-shaped ring 9 above the first U-shaped ring 9, and the installation convenience is improved; for convenience of fixation, the first clamping groove part 11 can be in a U shape, the opening end of the first clamping groove part downwards penetrates through the bottom of the U-shaped ring clamping apparatus 1, and the arc-shaped end of the first clamping groove part is communicated with the second clamping groove part 12; the second groove portion 12 extends upward through the top of the U-shaped ring clamp 1 and is perpendicular to the first groove portion 11. When the tension lead 6 is tightened by adjusting the lead screw assembly, the arc end of the U-shaped first clamping groove part 11 is contacted and pressed against the arc end contacted with the U-shaped ring 9, so that fixation is realized. In the present embodiment, the U-shaped ring clamp 1 has first mounting holes 13 formed at both ends thereof, through which the screws 22 are inserted. The structure of the U-ring clamp 1 can be appropriately changed by those skilled in the art based on this, and is not particularly limited.
Further, as shown in fig. 1, fig. 2, fig. 5 and fig. 6, the screw rod assembly may further include a fixing rod 24 fixedly installed on the first installation hole 13, and the fixing rod may be fixedly connected in a threaded manner; wherein the fixing rod 24 is provided with a central through cavity for the screw rod 22 to movably pass through; the first nut 21 can be rotatably arranged on the first end of the fixing rod 24, so as to realize the rotating fit with the U-shaped ring fixture 1; through adding dead lever 24, make things convenient for first nut 21 and the dismantled connection between the U type ring fixture 1, be convenient for subsequent change to maintain. In the present application, in order to facilitate the rotational fit between the handle 23 and the nut, the gear 211 which rotates synchronously may be sleeved and fixed on the first nut 21; the first end of the handle 23 is sleeved on the gear 211, a clamping block 231 is rotatably arranged at one side of the gear 211 in the first end of the handle 23, and a clamping tooth part which is movably clamped into a tooth slot of the gear 211 is arranged on the clamping block 231; the stop block 231 is also connected with a shift lever 232 extending out of the handle 23; specifically, the first end of the handle 23 is matched with the screw 22 and the first nut 21, wherein an avoiding cavity is arranged in the first end of the handle 23 and used for avoiding the gear 211 and installing the locking block 231, a first opening for the gear 211 to extend into is arranged at the bottom of the first end of the handle 23, and a second opening for the screw 22 to extend out is arranged at the top of the first end of the handle 23; in order to facilitate maintenance and replacement of the locking block 231, a cover plate (not shown) may be detachably disposed at the bottom of the first end of the handle 23, and fig. 6 is a state diagram of removing the cover plate, so that the locking block 231 can be protected and the locking block 231 can be maintained conveniently. During the use, make block 231 can mesh with gear 211 through stirring driving lever 232 to can realize dying the lock of gear 211, conveniently rotate handle 23 and use, improve the security of using.
Further, as shown in fig. 1 to 3, by using the structural characteristics of the U-shaped ring 9, the locking member 15 may be structured to include a bolt 151 and a second nut 152 engaged with the bolt 151; a through hole (not shown) which is communicated with the first clamping groove part 11 and is used for the bolt 151 to movably pass through is formed in the U-shaped ring clamping apparatus 1; the second nut 152 is sleeved on the bolt 151 on the rod section passing through the U-shaped ring clamp 1. The bolt 151 passes through the through hole through the middle of the U-shaped ring 9 and then is matched with the second nut 152, and the U-shaped ring 9 and the U-shaped ring clamp 1 are clamped and fixed by the head of the bolt 151 through the second nut 152, so that the U-shaped ring clamp 1 is further fixed. In this embodiment, the second nut 152 may be a wing nut, and is not limited in particular.
Further, as shown in fig. 1, 2 and 4, the tension conductor clamp 3 includes a fixing seat 31 and a clamping mechanism; the clamping mechanism is installed on the fixed seat 31 and is provided with a clamping cavity for the tension lead 6 to pass through. The clamping mechanism is installed on the fixing base 31, and then clamps the tension-resistant lead 6 by using the clamping mechanism so as to fix the tension-resistant lead clamp 3.
Further, as shown in fig. 1, 2 and 4, the clamping mechanism may include two clamping blocks 34, a first connecting rod 32 corresponding to the clamping blocks 34 one by one, and a second connecting rod 33 corresponding to the clamping blocks 34 one by one; the first side surface of the fixed seat 31 is symmetrically provided with sliding grooves 311 inclining towards the central line at two sides of the central line; the sliding grooves 311 on both sides of the central line gradually narrow along the bottom of the fixed seat 31 towards the top; the two clamping blocks 34 are respectively installed on the sliding grooves 311 on two sides of the central line in a sliding manner, and arc-shaped grooves 341 are respectively arranged on the opposite surfaces of the two clamping blocks 34; a clamping cavity is formed between the arc-shaped grooves 341; the first end of the first connecting rod 32 is hinged with the two ends of the bottom of the fixed seat 31 respectively, and the second end of the first connecting rod is hinged with the second end of the connecting rod 5 respectively; the first ends of the second links 33 are respectively hinged with the clamping blocks 34, and the second ends are respectively hinged with the first links 32.
Specifically, by utilizing the hinged fit of the first connecting rod 32 and the second connecting rod 33, when the lead screw assembly is adjusted to move the connecting rod 5 upwards, the connecting rod 5 drives the first connecting rod 32 to rotate towards the position of the clamping block 34, and the first connecting rod rotates and drives the second connecting rod 33 to push the clamping block 34 to move; in this embodiment, the sliding grooves 311 are arranged to be inclined toward the center line and gradually narrow toward the top along the bottom of the fixing base 31, so as to guide the movement of the clamping block 34, and provide an adjusting space for the clamping block 34 to adapt to the clamping and fixing of the tension-resistant wires 6 with more diameter specifications. When the adjusting screw assembly drives the connecting rod 5 to move upwards, the clamping block 34 is enabled to have further clamping force on the tension lead 6, so that the tension lead 6 can be better fastened. Thereby can be firm drive strain insulator wire 6 tighten up, whole easy to assemble and dismantlement further improve the operating efficiency. In this embodiment, the clamping block 34 can pass through the screw thread round pin, with the retaining member slidable mounting that screw thread round pin complex fixed head and spring are constituteed on spout 311, the installation of retaining member can be for example down, the screw thread round pin passes clamping block 34 and spout 311 in proper order and is connected with the fixed head, the spring housing is established on the screw thread round pin, and one end offsets with clamping block 34 contact, the other end offsets with the fixed head contact, thereby make the screw thread round pin have a straining force to clamping block 34, can fix the position of clamping block 34 down to a certain extent, and do not influence clamping block 34 and remove the adjustment along the spout, make strain insulator wire fixture 3 more convenient to the centre gripping installation of strain insulator wire. Those skilled in the art can make appropriate changes based on the above without limitation.
Further, as shown in fig. 4, the inner side wall of the arc-shaped groove 341 is provided with anti-slip threads. Set up anti-skidding line and can improve the contact frictional force between grip block 34 and the strain conductor 6, improve the centre gripping steadiness to strain conductor 6.
Further, the first end of the first link 32 is hinged with the second end of the link 5 through a connecting piece 321; the first end of the connecting member 321 is hinged to the first end of the first link 32, and the second end is hinged to the second end of the link 5. The connection fitting convenience between the first connecting rod 32 and the connecting rod 5 is improved by the connecting piece 321, and the structure of the connecting piece 321 can be as shown in fig. 4, and is not limited in particular.
Further, as shown in fig. 1 and 2, the bottle holding rack is further included; the first end of the bottle supporting frame is connected with the U-shaped ring clamp 1, and the second end of the bottle supporting frame is connected with the tension lead clamp 3. The installation setting of support bottle frame can make the atress between U type ring fixture 1 and the strain insulator wire fixture 3 more balanced, can play the effect of supporting to insulator string 8 of change in-process, avoids insulator string 8 to take place to turn on one's side.
Further, as shown in fig. 1 and 2, the bottle supporting frame includes at least two guide rods 41, a third connecting rod 44 and a supporting link plate 42; the supporting yoke plate 42 is arranged on the strain clamp 7 and is connected with the strain conductor clamp 3 through a third connecting rod 44, and two end parts of the supporting yoke plate 42 are respectively provided with a limiting hook 43 which is in one-to-one correspondence with the guide rods 41; the two guide rods 41 are vertically and symmetrically arranged, the first ends of the guide rods 41 are hinged with the U-shaped ring clamp 1 and can be fixedly hinged through a fixing piece shown in figures 1 and 2, the first ends of the guide rods are hinged with the first ends of the fixing piece, and the second ends of the fixing piece are fixedly connected with the U-shaped ring clamp; the second end of the guide rod movably passes through the limit hook 43. The second end of the guide rod 41 is movably connected with the support yoke plate 42 through a limiting hook 43, so that the adjustment of the distance between the U-shaped ring clamp 1 and the strain conductor clamp 3 is not influenced; similarly, for the installation and fixation of the limit hook 43, a threaded rod part movably penetrating through the support yoke plate 42 can be arranged on the limit hook 43, and a third nut is rotatably sleeved on the threaded rod part; a fourth nut is fixedly sleeved on the threaded rod part; the fourth nut and the third nut clamp and fix the support yoke plate 42.
In addition, the distance between the two guide rods 41 needs to be smaller than the diameter of the insulator string 8, and the insulator string 8 can be well prevented from turning on the side. Further, the U-ring clamp 1 may be provided with second mounting holes 14, respectively, to facilitate mounting and fixing of the guide rods 41. Of course, the number of the guide rods 41 in this embodiment may be two or more, and is not limited specifically.
Furthermore, in order to facilitate the installation of the third connecting rod 44, the second side surface of the fixing base 31 in this embodiment is provided with an installation block 312, the installation block 312 is provided with installation grooves 313 which are distributed along the length direction and into which one end of the third connecting rod 44 can movably extend, the installation grooves 313 are provided with a plurality of installation holes which are distributed along the length direction of the installation grooves 313, the installation and connection of the third connecting rod 44 is realized by selecting different installation holes, and the distance between the U-shaped ring clamp 1 and the strain conductor clamp 3 can be adjusted to adapt to the replacement operation of the insulator string 8 with different lengths.
The application also provides an operation method of the 35KV strain insulator string replacing device, which comprises the following steps:
step 1, connecting and installing a tension-resistant wire clamp 3 and a connecting rod 5; the process can be that two insulating gloves for 35kV live working and other personal protective equipment are worn to climb the tower to the cross arm where the insulator to be replaced is located, and the No. 1 electrician firstly connects and installs the tension-resistant wire clamp 3 and the connecting rod 5. Step 2, fixing the tension-resistant lead clamp 3 on the tension-resistant lead 6; after the electrician No. 1 finishes the installation of the step 1, the tension-resistant wire clamp 3 can be arranged at a proper position on the wire. Step 3, connecting and installing the U-shaped ring clamp 1 and the screw rod assembly; this step may be the number 2 electrician completing the installation of the U-ring clamp 1 and the lead screw assembly. Step 4, fixing the U-shaped ring fixture 1 on a U-shaped ring 9 of the cross arm, and aligning the screw rod assembly with the connecting rod 5; in this step, the electrician No. 2 installs the U-shaped ring clamp 1 on the U-shaped ring 9 of the cross arm and aligns the lead screw assembly and the connecting rod 5, so as to facilitate the subsequent steps, and the lead screw assembly and the connecting rod 5 are installed and fixed. Step 5, connecting the connecting rod 5 with the screw rod assembly; this step 2 electrician can complete the connection and installation of the screw rod assembly and the connecting rod 5. Step 6, after the step 5 is completed, the No. 1 electrician and the No. 2 electrician can simultaneously adjust the screw rod assembly, so that the stress between the U-shaped ring clamp 1 and the strain conductor clamp 3 is balanced, and the strain conductor 6 is tightened; step 7, replacing the insulator between the cross arm and the strain conductor 6; the electrician in the step 2 can hook the insulator string 8 through the insulating hook claw, and then the electrician in the step 1 can pull out and separate the socket pin on the wire side of the insulator string 8 through the pin puller, and then pulls out and separate the socket pin on the cross arm side of the insulator string 8 through the pin puller. And then the insulator string 8 is replaced from the lower part of the insulator string 8 to the ground through the insulating rope, and the replacement operation is carried out after the replaced insulator string 8, which is not specifically described. And 8, after the insulator string 8 is replaced, the replacing device can be detached, and when the insulator string is detached, the No. 1 electrician and the No. 2 electrician need to adjust the screw rod assemblies as much as possible simultaneously to ensure stress balance. The specific operations in the steps above can be appropriately changed by those skilled in the art according to actual situations, and are not limited specifically.
Further, the method also comprises a step of installing the bottle holding rack, wherein the step of installing the bottle holding rack can be between the step 5 and the step 6. Taking the bottle holder mounting as an example, the insulator string 8 replacement operation in step 7 may be, for example, as follows: the pin puller is used for pulling out and separating a lead side bowl head plug pin of the insulator string 8, at the moment, the insulator string 8 integrally falls into the insulator support, and then the limit hook 43 of the insulator support is loosened; because 8 cross arm of insulator chain still connect the pile body on the distolateral side, can utilize the insulator spindle to promote 8 rotatory 90 to the vertical direction of insulator chain this moment, insulator chain 8 becomes the grounding body by electrified body this moment, and this is that electrician can dismantle 8 cross arm end bolts of insulator chain by bare-handed, and the change is accomplished with insulator chain 8 below to ground to the insulating rope of rethread, installs 8 insulator chains after changing again, and the installation step is opposite with the dismantlement step, does not specifically do too much to describe repeatedly.
The 35KV strain insulator string replacing device and the operation method thereof provided by the present application are described in detail above, and a person skilled in the art may change the specific implementation manner and the application scope according to the idea of the embodiment of the present application.
Claims (10)
1. The utility model provides a 35KV strain insulator string changes device which characterized in that includes: the device comprises a U-shaped ring clamp, a strain lead clamp, two connecting rods and lead screw assemblies which correspond to the connecting rods one by one;
a clamping groove is formed in the U-shaped ring clamp in the thickness direction, and two end parts of the U-shaped ring clamp are connected with the first end of the connecting rod through the screw rod assembly respectively;
the clamping groove is detachably provided with a locking piece;
the tension-resistant conducting wire fixture is detachably clamped on the tension-resistant conducting wire, and two end parts of the tension-resistant conducting wire fixture are respectively connected with the second end of the connecting rod;
the screw rod assembly comprises a screw rod, a first nut and a handle;
the first end of the screw rod penetrates through the U-shaped ring clamp upwards, and the second end of the screw rod is connected with the first end of the connecting rod;
the first nut is rotationally arranged on the U-shaped ring clamp and is in threaded fit with the screw;
the handle is connected with the first nut and used for driving the first nut to rotate.
2. The device according to claim 1, wherein the slot comprises a first slot portion and a second slot portion;
the opening end of the first clamping groove penetrates through the bottom of the U-shaped ring clamp downwards, and the arc-shaped end is communicated with the second clamping groove part;
the second clamping groove part penetrates through the top of the U-shaped ring clamp upwards and is perpendicular to the first clamping groove part.
3. The device according to claim 2, wherein the locking member comprises a bolt and a second nut engaged with the bolt;
the U-shaped ring clamp is provided with a through hole which is communicated with the first clamping groove part and through which the bolt can movably pass;
the second nut is sleeved on the bolt on the rod section penetrating through the U-shaped ring clamp.
4. The device for replacing the 35KV strain insulator string according to claim 1, wherein the strain conductor clamp comprises a fixed seat and a clamping mechanism;
the clamping mechanism is installed on the fixed seat and is provided with a clamping cavity for the tension-resistant lead to pass through.
5. The device according to claim 4, wherein the clamping mechanism comprises two clamping blocks, first connecting rods corresponding to the clamping blocks one by one, and second connecting rods corresponding to the clamping blocks one by one;
the first side surface of the fixed seat is symmetrically provided with sliding chutes inclined towards the central line on two sides of the central line;
the sliding grooves positioned on the two sides of the central line are gradually narrowed along the direction from the bottom to the top of the fixed seat;
the two clamping blocks are respectively installed on the sliding grooves on two sides of the central line in a sliding mode, and arc-shaped grooves are respectively formed in opposite surfaces of the two clamping blocks;
the clamping cavity is formed between the arc-shaped grooves;
the first end of the first connecting rod is hinged with the two ends of the bottom of the fixed seat respectively, and the second end of the first connecting rod is hinged with the second end of the connecting rod respectively;
the first ends of the second connecting rods are respectively hinged with the clamping blocks, and the second ends of the second connecting rods are respectively hinged with the first connecting rods.
6. The device for replacing the 35KV strain insulator string according to claim 5, wherein the inner side wall of the arc-shaped groove is provided with anti-skid grains.
7. The device for replacing the 35KV strain insulator string according to claim 5, wherein the first end of the first connecting rod is hinged to the second end of the connecting rod through a connecting piece;
the first end of the connecting piece is hinged with the first end of the first connecting rod, and the second end of the connecting piece is hinged with the second end of the connecting rod.
8. The device for replacing the 35KV strain insulator string according to claim 1, further comprising a bottle supporting frame;
the first end of the bottle supporting frame is connected with the U-shaped ring clamp, and the second end of the bottle supporting frame is connected with the strain lead clamp.
9. The device according to claim 8, wherein the bottle holder comprises at least two guide rods, a third connecting rod and a support yoke plate;
the supporting yoke plate is arranged on the strain clamp and is connected with the strain lead clamp through a third connecting rod, and two end parts of the supporting yoke plate are respectively provided with limiting hooks which are in one-to-one correspondence with the guide rods;
the two guide rods are vertically and symmetrically arranged, the first ends of the guide rods are hinged with the U-shaped ring clamp, and the second ends of the guide rods movably penetrate through the limiting hooks.
10. The operation method of the 35KV strain insulator string replacing device is characterized by comprising the following steps:
connecting and installing the tension lead clamp and the connecting rod;
fixing the tension lead clamp on the tension lead;
connecting and installing the U-shaped ring fixture and the screw rod assembly;
fixing the U-shaped ring fixture on a U-shaped ring of a cross arm, and aligning the screw rod assembly with the connecting rod;
connecting the connecting rod with the screw rod assembly;
adjusting the screw rod assembly to tighten the tension-resistant lead;
replacing the insulator between the cross arm and the tension resistant lead;
and (5) removing the replacing device.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010174576.5A CN111181078B (en) | 2020-03-12 | 2020-03-12 | 35KV strain insulator string replacing device and operation method thereof |
| PCT/CN2020/118638 WO2021179580A1 (en) | 2020-03-12 | 2020-09-29 | 35kv strain insulator string replacement device and operating method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010174576.5A CN111181078B (en) | 2020-03-12 | 2020-03-12 | 35KV strain insulator string replacing device and operation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111181078A true CN111181078A (en) | 2020-05-19 |
| CN111181078B CN111181078B (en) | 2021-09-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010174576.5A Active CN111181078B (en) | 2020-03-12 | 2020-03-12 | 35KV strain insulator string replacing device and operation method thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111181078B (en) |
| WO (1) | WO2021179580A1 (en) |
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| Publication number | Publication date |
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| WO2021179580A1 (en) | 2021-09-16 |
| CN111181078B (en) | 2021-09-10 |
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