CN212875342U - Jumper wire anti-abrasion device of 500kV overhead power transmission line - Google Patents
Jumper wire anti-abrasion device of 500kV overhead power transmission line Download PDFInfo
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- CN212875342U CN212875342U CN202021778313.7U CN202021778313U CN212875342U CN 212875342 U CN212875342 U CN 212875342U CN 202021778313 U CN202021778313 U CN 202021778313U CN 212875342 U CN212875342 U CN 212875342U
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Abstract
The utility model provides a jumper wire anti-abrasion device of 500kV overhead power transmission line, which comprises a shaft lever, a first connecting section, a second connecting section and a cylindrical boss, wherein a limit step is arranged on the shaft lever; the jumper fixing component is positioned on one side of the first connecting section, is externally sleeved on the limiting step, and limits the circumferential rotation of the jumper fixing component through the limiting step; the first nut is connected with the threaded section of the first connecting section to limit the axial movement of the jumper wire fixing component; the connecting piece is sleeved on the shaft lever and positioned on one side of the second connecting section, and the jumper wire is fixed with an element on the power transmission line through the connecting piece; the gasket is sleeved on the shaft rod and positioned on one side of the second connecting section, and the distance from the jumper wire to an element on the power transmission line is adjusted through the plurality of gaskets; the second nut is connected with the threaded section of the second connecting section to limit axial movement of the connecting member and the spacer. The reliability of the jumper wire anti-abrasion device is ensured, the service life of the hardware fitting is prolonged, and the maintenance cost can be reduced.
Description
Technical Field
The utility model relates to a transmission line wire jumper protection technical field especially relates to a 500kV makes somebody a mere figurehead power transmission line's wire jumper wear proof device.
Background
Since the first 500kV transmission line in China is put into operation so far, a plurality of transmission systems taking the 500kV transmission line as a main framework are formed in China, the jumper wire of the tension tower is generally formed naturally in the air by taking the same conducting wire as the jumper wire in a traditional jumper wire mode, and the transverse vibration of a jumper wire string is caused by the wind pressure on the jumper wire, so that the traditional jumper wire mode becomes a main reason for the current electric accident, the torsion of the conducting wire on the jumper wire and the damage of a jumper wire hardware. In order to solve the problem, the structure schemes of additionally arranging an anti-abrasion bushing, a jumper spacer, a reinforced strain clamp and the like on the jumper are sequentially presented, wherein the jumper is additionally provided with the anti-abrasion bushing, so that the abrasion of the jumper can be prevented to a certain extent, but the damage of the jumper hardware fitting caused by the torsion of the jumper cannot be solved; the jumper spacer can fix the jumper to prevent the jumper hardware from being damaged, but the jumper spacer is only suitable for conventional jumper, the distance is difficult to adjust, and special routing modes such as horizontal outlet of the jumper and the like are not suitable; strenghthened type strain clamp isotructure can effectual solution wire jumper gold utensil damage's a difficult problem, has increased engineering cost simultaneously, but solution wire jumper wearing and tearing problem that can not be fine.
Therefore, there is a need to develop a jumper wire anti-wear device for 500kV overhead power transmission lines, which can solve the bending and twisting stress generated at the chuck of the device due to the twisting of the jumper wire, ensure the reliability of the whole device, prolong the service life of the hardware, and reduce the maintenance cost.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art or the correlation technique.
Therefore the utility model provides a 500kV makes somebody a mere figurehead power transmission line's wire jumper wear proof device.
In view of this, the utility model provides a 500kV makes somebody a mere figurehead power transmission line's wire jumper wear prevention device, wire jumper wear prevention device includes:
the shaft rod comprises a first connecting section, a second connecting section and a cylindrical boss arranged between the first connecting section and the second connecting section, a limiting step is arranged on the cylindrical boss, and the first connecting section and the second connecting section comprise a smooth section and a threaded section;
the jumper fixing component is positioned on one side of the first connecting section, is sleeved on the limiting step and limits the circumferential rotation of the jumper fixing component through the limiting step;
the first nut is connected with the threaded section of the first connecting section and limits the axial movement of the jumper wire fixing component;
the connecting piece is sleeved on the shaft rod in an externally sleeved mode, is positioned on one side of the second connecting section, and fixes the jumper wire and an element on the power transmission line through the connecting piece;
the gasket is sleeved on the shaft rod and positioned on one side of the second connecting section, and the distance from the jumper to a component on the power transmission line is adjusted through the plurality of gaskets;
and the second nut is connected with the threaded section of the second connecting section and limits the axial movement of the connecting piece and the gasket.
Furthermore, pin holes are formed in two ends of the shaft rod, and a closed pin penetrates through the pin holes to limit movement of the first nut and the second nut.
Further, the jumper fixing assembly includes:
the wire clamp comprises a wire clamp body, wherein a first wire jumping groove is formed in one side, facing the limiting step, of the wire clamp body, and a groove is formed in one side, facing away from the limiting step, of the wire clamp body and used for accommodating a first nut;
a second jumper wire groove is formed in one side, facing the wire clamp main body, of the wire clamp gland, a jumper wire accommodating cavity is formed by the first jumper wire groove and the second jumper wire groove, and rubber pads are arranged in the first limiting groove and the second limiting groove;
the wire clamp comprises a wire clamp main body and a wire clamp gland, wherein a connecting through hole is formed in the wire clamp main body and the wire clamp gland, the shape of the connecting through hole is matched with that of the limiting step and that of the smooth section of the first connecting section, and the axis of the connecting through hole is perpendicular to that of the jumper wire accommodating cavity.
Furthermore, the connecting piece comprises a connecting plate and connecting round holes arranged at two ends of the connecting plate, wherein one connecting round hole is sleeved on the smooth section of the second connecting section, and the other connecting round hole is connected with the adjusting plate on the power transmission line.
Further, the gasket is located between the connecting plate and the cylindrical boss.
Further, the connector includes:
the connecting body is provided with a first connecting groove at one side back to the limiting step;
a second connecting groove is formed in one side, facing the connecting main body, of the connecting gland, an accommodating groove is formed in one side, facing away from the connecting main body, of the connecting gland and used for accommodating the second nut, a connecting cavity is formed by the first connecting groove and the second connecting groove, and anti-abrasion pads are arranged in the first connecting groove and the second connecting groove;
connecting holes are formed in the connecting main body and the connecting gland, the connecting holes are matched with the cylindrical boss close to one side of the second connecting section and the smooth section of the second connecting section, and the axis of each connecting hole is perpendicular to the axis of the connecting cavity;
the connection cavity can be connected with a grading ring beam and a grading ring main body on the power transmission line.
Further, the gasket is located between the connecting gland and the second nut, and the gasket is arranged in the accommodating groove.
The utility model provides a technical scheme can include following beneficial effect:
the jumper wire anti-abrasion device fixes the jumper wire on elements (mainly indicating a grading ring beam, a grading ring main body and an adjusting plate) on a power transmission line nearby, mainly plays a role in supporting and fixing the jumper wire, has a certain buffering damping effect simultaneously, can avoid the abrasion of the jumper wire and the damage of a jumper wire fitting, can eliminate the bending and twisting stress generated by the torsion of the jumper wire at a chuck of a jumper wire fixing assembly by arranging a limit step at a shaft lever, ensures the reliability of the whole device, prolongs the service life of the fitting and reduces the maintenance cost.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 shows a schematic view of a jumper wear prevention device connected with an adjustment plate according to an embodiment of the invention;
figure 2 shows a schematic view of a jumper wear prevention device connected to a grading ring body, according to an embodiment of the invention;
fig. 3 shows a schematic view of a jumper wear prevention device connected to a grading ring beam according to an embodiment of the present invention;
fig. 4 shows a schematic view of a shaft according to an embodiment of the invention.
Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 4 is:
1 fastener main part, 2 fastener gland, 3 rubber pads, 4 axostylus axostyle, 401 first linkage segment, 4011 screw thread section, 4012 smooth section, 402 cylinder boss, 4021 spacing step, 403 second linkage segment, 404 pinhole, 5 gaskets, 6 connecting plates, 7 second nuts, 8 closed round pins, 9 first nuts, 10 joint body, 11 joint gland, 12 abrasionproof pads.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
Example 1
Fig. 1 shows a schematic view of a jumper wear prevention device connected with an adjustment plate according to an embodiment of the invention; fig. 4 shows a schematic view of a shaft according to an embodiment of the invention.
As shown in fig. 1 and 4, embodiment 1 provides a jumper wear prevention device for a 500kV overhead power transmission line, including:
the shaft rod 4 comprises a first connecting section 401, a second connecting section 403 and a cylindrical boss 402 arranged between the first connecting section 401 and the second connecting section 403, a limiting step 4021 is arranged on the cylindrical boss 402, and the first connecting section 401 and the second connecting section 403 comprise a smooth section 4012 and a threaded section 4011;
the jumper fixing assembly is positioned on one side of the first connecting section 401, is sleeved on the limiting step 4021, and is limited to rotate circumferentially by the limiting step 4021;
the first nut 9 is connected with the threaded section 4011 of the first connecting section 401 and limits the axial movement of the jumper fixing component;
the connecting piece is sleeved on the shaft lever 4 and positioned on one side of the second connecting section 403, and the jumper wire and elements on the power transmission line are fixed through the connecting piece;
the gasket 5 is sleeved on the shaft rod 4, the gasket 5 is positioned on one side of the second connecting section 403, and the distance from the jumper to the element on the power transmission line is adjusted through the plurality of gaskets 5;
a second nut 7, coupled to the threaded section 4011 of the second connector segment 403, limits axial movement of the connector and the spacer 5.
The jumper wire anti-abrasion device fixes the jumper wire on elements (mainly indicating an equalizer ring beam, an equalizer ring main body and an adjusting plate) on a power transmission line nearby, mainly plays a role in supporting and fixing the jumper wire, and has a certain buffering damping effect at the same time, so that the abrasion of the jumper wire can be avoided, the jumper wire can not transversely vibrate, the friction between the jumper wire and the elements on the power transmission line is reduced, the problem that the jumper wire hardware is damaged can be solved, the limiting step 4021 is arranged at the position of the shaft lever 4, the bending stress and the torsional stress generated at the chuck of the jumper wire fixing assembly can be eliminated, the reliability of the whole device is ensured, the service life of the hardware is prolonged, and the maintenance cost is reduced.
Further, pin holes 404 are provided at both ends of the shaft 4, and the movement of the first nut 9 and the second nut 7 is restricted by the closing pin 8 passing through the pin holes 404.
Through the setting of the pin 8 that closes, can prevent effectively that first nut 9 and second nut 7 are not hard up, realize the fastening of the fixed subassembly of wire jumper and spacing to the connecting piece, improve wire jumper wear proof device's stability.
Further, the jumper fixing assembly includes:
a first wire jumping groove is formed in one side, facing the limiting step 4021, of the wire clamp body 1, and a groove is formed in one side, facing away from the limiting step 4021, of the wire clamp body 1 and used for accommodating a first nut 9;
a second jumper wire groove is formed in one side, facing the wire clamp body 1, of the wire clamp gland 2, a jumper wire accommodating cavity is formed by the first jumper wire groove and the second jumper wire groove, and rubber pads 3 are arranged in the first limiting groove and the second limiting groove;
wherein, be equipped with connect the through hole in fastener main part 1 and the fastener gland 2, connect the shape of through hole and spacing step 4021 and the smooth section 4012 phase-match of first linkage segment 401, connect the axis of through hole and the perpendicular setting of axis that the chamber was held to the wire jumper.
Wherein, the material of fastener main part 1 and fastener gland 2 is aluminium.
The aluminum jumper wire fixing assembly can reduce current eddy loss, and is energy-saving and environment-friendly.
Place the wire jumper in the wire jumper holds the intracavity, the wire jumper not with fastener main part 1 and 2 direct contact of fastener gland, but separate through rubber pad 3, can further avoid the wearing and tearing of wire jumper, improve the life of wire jumper.
The material of the shaft 4 is iron.
The iron shaft rod is adopted, the strength of the shaft rod can be improved, the processing is easy, and iron is a common material for connection in the electric power fitting.
Specifically, the connecting member in embodiment 1 includes a connecting plate 6 and connecting circular holes provided at both ends of the connecting plate 6, wherein one of the connecting circular holes is externally sleeved on the smooth section 4012 of the second connecting section 403, and the other connecting circular hole is connected to the adjusting plate on the power feeding line.
The jumper wire near the adjusting plate is connected with the adjusting plate through the jumper wire anti-abrasion device in the embodiment 1, and the jumper wire anti-abrasion device does not limit the circumferential movement of the connecting plate 6, so that the connecting plate 6 can rotate at any angle on a plane perpendicular to the shaft rod 4, bending and torsional stress generated at a chuck of the jumper wire fixing assembly due to the fact that the jumper wire is twisted can be eliminated, the reliability of the whole device is guaranteed, the service life of a hardware fitting is prolonged, and the maintenance cost is reduced.
Wherein, the material of connecting plate 6 is for ironwork, adopts the axostylus axostyle of ironwork, can improve the intensity of axostylus axostyle, easily processing, and iron is the common material that is used for connecting in the electric power fitting.
Further, a spacer 5 is located between the connection plate 6 and the cylindrical boss 402.
The distance from the jumper wire to the adjusting plate can be adapted by using different numbers of gaskets 5, and different distances from the jumper wire to the adjusting plate in practical application are met.
Example 2
Figure 2 shows a schematic view of a jumper wear prevention device connected to a grading ring body, according to an embodiment of the invention; fig. 3 shows a schematic diagram of a jumper wear prevention device connected with a grading ring beam according to an embodiment of the present invention.
Unlike the connector of embodiment 1, as shown in fig. 2 and 3, embodiment 2 provides a connector including:
a first connecting groove is formed in one side, back to the limiting step 4021, of the connecting main body 10;
a second connecting groove is formed in one side, facing the connecting main body 10, of the connecting gland 11, an accommodating groove is formed in one side, facing away from the connecting main body 10, of the connecting gland 11 and used for accommodating the second nut 7, a connecting cavity is formed by the first connecting groove and the second connecting groove, and an anti-abrasion pad 12 is arranged in the first connecting groove and the second connecting groove;
connecting holes are formed in the connecting main body 10 and the connecting gland 11, the connecting holes are matched with the cylindrical boss 402 close to one side of the second connecting section 403 and the smooth section 4012 of the second connecting section 403, and the axis of each connecting hole is perpendicular to the axis of the connecting cavity;
it should be noted that, by arranging the spacer 5 below the cylindrical boss 402 near the second connecting section 403, the distance between the wire clamp cover 2 and the connecting body 10 can be adjusted, wherein the inner diameter of the spacer 5 is the same as the outer diameter of the shaft rod 4, the outer diameter of the spacer 5 is the same as the outer diameter of the cylindrical boss 402, and when there is no spacer 5 below the cylindrical boss 402 near the second connecting section 403, the wire clamp cover 2 and the connecting body 10 are closely arranged.
Wherein, the connecting cavity can be connected with the grading ring beam and the grading ring main body on the power transmission line.
The connecting body 10 and the connecting cover 11 are made of aluminum.
The connecting body 10 and the connecting gland 11 made of aluminum can reduce current eddy loss, and are energy-saving and environment-friendly.
The jumper wire near the grading ring beam and the grading ring main body is connected with the grading ring beam and the grading ring main body through the jumper wire anti-abrasion device in the embodiment 2, and the jumper wire anti-abrasion device does not limit the circumferential movement of the connecting main body 10 and the connecting gland 11, so that the connecting piece in the embodiment 2 can rotate at any angle on the plane perpendicular to the shaft rod 4, the bending and twisting stress generated at the chuck of the jumper wire fixing component due to the twisting of the jumper wire can be eliminated, the reliability of the whole device is ensured, the service life of the hardware fitting is prolonged, and the maintenance cost is reduced.
Further, the gasket 5 is located between the connecting gland 11 and the second nut 7, and the gasket 5 is disposed in the accommodating groove.
The gasket 5 shown in fig. 2 and 3 is placed below the connecting piece when not in use, and when the distance between the jumper wire fixing assembly and the grading ring main body or the grading ring beam needs to be adjusted, the number of the gaskets is determined according to needs, and the gaskets are moved into the accommodating groove.
The gasket 5 with different quantities can adapt to the distance from the jumper wire to the grading ring beam and the grading ring main body, and different distances from the jumper wire to the grading ring beam and the grading ring main body in practical application are met.
It should be noted that the diameter of the grading ring main body is larger than that of the grading ring beam, so that when the grading ring main body is connected with the grading ring beam and the grading ring main body, the diameters of the connection cavities in this embodiment are different, and different connection cavities are directly manufactured according to actual needs.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.
Claims (7)
1. A jumper wear prevention device of a 500kV overhead power transmission line, characterized by comprising:
the shaft rod comprises a first connecting section, a second connecting section and a cylindrical boss arranged between the first connecting section and the second connecting section, a limiting step is arranged on the cylindrical boss, and the first connecting section and the second connecting section comprise a smooth section and a threaded section;
the jumper fixing component is positioned on one side of the first connecting section, is sleeved on the limiting step and limits the circumferential rotation of the jumper fixing component through the limiting step;
the first nut is connected with the threaded section of the first connecting section and limits the axial movement of the jumper wire fixing component;
the connecting piece is sleeved on the shaft rod in an externally sleeved mode, is positioned on one side of the second connecting section, and fixes the jumper wire and an element on the power transmission line through the connecting piece;
the gasket is sleeved on the shaft rod and positioned on one side of the second connecting section, and the distance from the jumper to a component on the power transmission line is adjusted through the plurality of gaskets;
and the second nut is connected with the threaded section of the second connecting section and limits the axial movement of the connecting piece and the gasket.
2. The jumper wear prevention device for the 500kV overhead power transmission line according to claim 1, wherein pin holes are further formed at both ends of the shaft, and movement of the first nut and the second nut is limited by a closed pin passing through the pin holes.
3. The jumper wear prevention device for 500kV overhead power transmission lines according to claim 1, wherein the jumper fixing assembly comprises:
the wire clamp comprises a wire clamp body, wherein a first wire jumping groove is formed in one side, facing the limiting step, of the wire clamp body, and a groove is formed in one side, facing away from the limiting step, of the wire clamp body and used for accommodating a first nut;
the wire clamp comprises a wire clamp gland, wherein a second jumper wire groove is formed in one side, facing the wire clamp body, of the wire clamp gland, a jumper wire accommodating cavity is formed by the first jumper wire groove and the second jumper wire groove, and rubber pads are arranged in the first jumper wire groove and the second jumper wire groove;
the wire clamp comprises a wire clamp main body and a wire clamp gland, wherein a connecting through hole is formed in the wire clamp main body and the wire clamp gland, the shape of the connecting through hole is matched with that of the limiting step and that of the smooth section of the first connecting section, and the axis of the connecting through hole is perpendicular to that of the jumper wire accommodating cavity.
4. The jumper wire wear prevention device for the 500kV overhead power transmission line according to any one of claims 1 to 3, wherein the connecting member comprises a connecting plate and connecting round holes arranged at two ends of the connecting plate, one of the connecting round holes is sleeved on the smooth section of the second connecting section, and the other connecting round hole is connected with an adjusting plate on the power transmission line.
5. The jumper wear prevention device for 500kV overhead power transmission lines according to claim 4, wherein the gasket is located between the connection plate and the cylindrical boss.
6. The jumper wear prevention device for 500kV overhead power transmission lines according to any one of claims 1 to 3, wherein the connection member comprises:
the connecting body is provided with a first connecting groove at one side back to the limiting step;
a second connecting groove is formed in one side, facing the connecting main body, of the connecting gland, an accommodating groove is formed in one side, facing away from the connecting main body, of the connecting gland and used for accommodating the second nut, a connecting cavity is formed by the first connecting groove and the second connecting groove, and anti-abrasion pads are arranged in the first connecting groove and the second connecting groove;
connecting holes are formed in the connecting main body and the connecting gland, the connecting holes are matched with the cylindrical boss close to one side of the second connecting section and the smooth section of the second connecting section, and the axis of each connecting hole is perpendicular to the axis of the connecting cavity;
the connection cavity can be connected with a grading ring beam and a grading ring main body on the power transmission line.
7. The jumper wear prevention device for 500kV overhead power transmission lines according to claim 6, wherein the gasket is located between the connection gland and the second nut, and the gasket is disposed in the accommodation groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021778313.7U CN212875342U (en) | 2020-08-24 | 2020-08-24 | Jumper wire anti-abrasion device of 500kV overhead power transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021778313.7U CN212875342U (en) | 2020-08-24 | 2020-08-24 | Jumper wire anti-abrasion device of 500kV overhead power transmission line |
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| CN212875342U true CN212875342U (en) | 2021-04-02 |
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| CN202021778313.7U Active CN212875342U (en) | 2020-08-24 | 2020-08-24 | Jumper wire anti-abrasion device of 500kV overhead power transmission line |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114024278A (en) * | 2021-10-09 | 2022-02-08 | 国网河北省电力有限公司检修分公司 | Anti-abrasion support hardware fitting for strain jumper of ultra-high voltage transmission line |
-
2020
- 2020-08-24 CN CN202021778313.7U patent/CN212875342U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114024278A (en) * | 2021-10-09 | 2022-02-08 | 国网河北省电力有限公司检修分公司 | Anti-abrasion support hardware fitting for strain jumper of ultra-high voltage transmission line |
| CN114024278B (en) * | 2021-10-09 | 2023-03-14 | 国网河北省电力有限公司检修分公司 | Super extra-high voltage transmission line strain jumper wire abrasion-proof supporting hardware fitting |
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