CN116742528A - Cross 10kV overhead line stringing device - Google Patents
Cross 10kV overhead line stringing device Download PDFInfo
- Publication number
- CN116742528A CN116742528A CN202310773978.0A CN202310773978A CN116742528A CN 116742528 A CN116742528 A CN 116742528A CN 202310773978 A CN202310773978 A CN 202310773978A CN 116742528 A CN116742528 A CN 116742528A
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- cable
- overhead line
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- cable supporting
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- 230000007246 mechanism Effects 0.000 claims abstract description 52
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 206010014357 Electric shock Diseases 0.000 abstract description 3
- 230000006378 damage Effects 0.000 abstract description 3
- 208000027418 Wounds and injury Diseases 0.000 abstract description 2
- 230000009471 action Effects 0.000 abstract description 2
- 230000009194 climbing Effects 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 abstract description 2
- 208000014674 injury Diseases 0.000 abstract description 2
- 230000001174 ascending effect Effects 0.000 abstract 1
- 238000013461 design Methods 0.000 description 9
- 239000004677 Nylon Substances 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 229920001778 nylon Polymers 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000012876 topography 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
- 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
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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
- H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
Landscapes
- Suspension Of Electric Lines Or Cables (AREA)
Abstract
The invention discloses a 10kV overhead line crossing device, which comprises a cable supporting mechanism, wherein the lower end of the cable supporting mechanism is provided with a control mechanism, and the lower end of the control mechanism is provided with a lifting mechanism; the control mechanism comprises two mutually parallel roller structures arranged under the cable fixing mechanism; the lifting mechanism comprises a stress structure, and the stress structure is connected with a supporting structure; the cable supporting mechanism comprises a middle part, two cable supporting structures are connected to the middle part, and the two cable supporting structures are symmetrically arranged relative to the middle part. The length required by the action is obviously reduced, the labor cost of enterprises is reduced, the labor intensity of workers is reduced, the electric shock risk and the mechanical injury risk of the ascending paying-off pulley hung by the climbing rod of the workers are avoided, the safety is improved, the overhead line and the original overhead line are well protected, and the requirements of electricity customers are met.
Description
Technical Field
The invention relates to the technical field of cable installation, in particular to a 10kV overhead line crossing device.
Background
In the process of power distribution network construction and maintenance, an overhead line (such as a 10kV overhead bare conductor, a 10kV insulated conductor, a low-voltage conductor and the like) is often installed or replaced, and under normal conditions, an upward-type paying-off pulley is required to be hung on a cross arm at the top of a pole through an anti-drop lifting hook after a person climbs the pole, and then the line is erected through the pulley.
At present, the frequency duty ratio of overhead line operation crossing 10kV in distribution network crossing overhead line operation is gradually increased. Because of being influenced by the hanging position of the upward paying-off pulley, operators can only carry out overhead line operation of crossing 10kV overhead lines between towers, the operation efficiency is low, the operation time is long, and the line is easy to be worn due to the fact that other two operators drag the line during the time delay. Therefore, in most cases, the operator chooses to place the cable to be installed over an existing line (e.g., a low-voltage overhead line, a communication line, etc.) as a support object for the cable to be installed. Such an operation mode is convenient, but is prone to safety accidents due to frictional damage caused by the cable riding on the crossed line. In severe cases, if the crossed line is a live line in operation, personal electric shock accidents are easily caused.
Disclosure of Invention
The invention aims to solve the technical problems that the working efficiency is low when the existing overhead line is erected to span 10kV overhead lines, the operation time is long.
The invention aims to provide a 10kV overhead line crossing wire erecting device which comprises a cable supporting mechanism, wherein the lower end of the cable supporting mechanism is provided with a control mechanism, and the lower end of the control mechanism is provided with a lifting mechanism;
the control mechanism comprises two mutually parallel roller structures arranged under the cable fixing mechanism; the lifting mechanism comprises a stress structure, and the stress structure is connected with a supporting structure;
the cable supporting mechanism comprises a middle part, two cable supporting structures are connected to the middle part, and the two cable supporting structures are symmetrically arranged relative to the middle part.
The 10kV overhead line crossing overhead line wiring device disclosed by the invention is used for mounting a three-phase cable, and a cable in the middle sequentially passes through two roller structures which are parallel to each other; the intermediate part plays the effect of connecting two cable bearing structure, and two remaining cable lines are supported by two cable bearing structure respectively to make the cable line lay along the direction that the operating personnel pulls.
Firstly, the time length required by the action is obviously reduced from 64 minutes to 12.3 minutes, and the overhead line device for crossing 10kV disclosed by the invention mainly does not need to climb; secondly, the labor cost of enterprises is reduced from original 3 persons to 2 persons, the labor intensity of workers is reduced, the risk of electric shock and the risk of mechanical injury caused by hanging the pole climbing of the workers on the overhead paying-off pulley are avoided, and the safety is improved; finally, the overhead line and the original overhead line are well protected, and the requirements of electricity customers are met.
As a possible design, the cable support mechanism is herringbone or in-line. Has good stability and better herringbone stability.
As a possible design, the cable support structure is hinged with the intermediate part. When the 10kV overhead line stringing device is not used, the cable supporting structure can be stored, and the device is convenient to carry.
As one possible design, the cable support structure comprises a support rail, the end surface of which remote from the intermediate part is provided with a first pulley; preferably, the intermediate member is provided with a second pulley, and the first pulley and the second pulley are arranged in parallel.
As one possible design, the two mutually parallel roller structures are both arranged at the bottom of the middle part and are longitudinally supported in the middle phase, and a cable limiting part is arranged at one end, far away from the middle part, of the cable supporting structure. The roller structure is used for supporting the cable in the middle.
As a possible design, the two mutually parallel roller structures are respectively arranged at one end of the two cable support structures, which is far away from the middle part. The roller structure is used for supporting cables at two ends.
As one possible design, the cable supporting mechanism is foldable, the cable supporting mechanism further comprises a magnetic spring, a fixing ring is arranged on the end face of the supporting cross rod, which is far away from the middle part, and two ends of the magnetic spring are detachably connected with the two fixing rings respectively.
As a possible design, the stress structure comprises a stress frame, and a connecting piece for connecting the support structure is arranged on the stress frame. The stress frame is used for bearing the gravity of the cable.
As one possible design, the connecting piece comprises two semicircular rings with different radiuses connected to the stress frame, the two semicircular rings are longitudinally arranged and the semicircular ring with a small radius is arranged at the upper part, the supporting structure comprises an insulating supporting rod capable of penetrating the semicircular ring, one end of the insulating supporting rod is provided with a transverse supporting rod, and the length of the supporting rod is smaller than the diameter of the semicircular ring with a large radius; or; the connecting piece is a self-locking buckle. The connecting piece is used for realizing connection of the connecting piece and the insulating supporting rod, and the 10kV overhead line stringing device is convenient to store when not used.
As one possible design, the 10kV overhead line crossing device further includes a traction structure detachably connected to the lifting mechanism.
Drawings
In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the drawings that are needed in the examples will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and that other related drawings may be obtained from these drawings without inventive effort for a person skilled in the art. In the drawings:
fig. 1 is a front view of a 10kV overhead line assembly in an embodiment of the invention;
fig. 2 is a top view of a 10kV overhead line assembly in accordance with an embodiment of the invention;
FIG. 3 is a left side view of a cross 10kV overhead line assembly in an embodiment of the present invention;
FIG. 4 is a schematic view of a support structure according to an embodiment of the present invention;
FIG. 5 is a schematic view of a non-standard insulator spindle according to an embodiment of the present invention.
In the drawings, the reference numerals and corresponding part names:
1-an intermediate part; 2-a cable support structure; 201-support crossbars; 202-a first pulley; 203-a securing ring; 3-roller structure; 4-connecting piece; 401-insulating support rods; 402-transverse struts; 5-a second insulating rod; 6-a first insulating rod; 7-clamping hoop.
Detailed Description
For the purpose of making apparent the objects, technical solutions and advantages of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present invention and the descriptions thereof are for illustrating the present invention only and are not to be construed as limiting the present invention.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. The meaning of "a number" is one or more than one unless specifically defined otherwise.
In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
The existing overhead line of striding 10kV is the space-facing unwrapping wire pulley that adopts at present when setting up, needs 3 operators when using, and one of them operators is fixed space-facing unwrapping wire pulley on pole top cross arm, and other two people are responsible for in the ground and prolong the unwrapping wire way, until the overhead line work is accomplished, and this kind of mode mainly has following problem: each time it is used, it is long.
Aiming at the problems, as shown in fig. 1-3, the embodiment of the invention provides a 10kV overhead line wire-erecting device. As shown in fig. 1, the overhead line wire erecting device crossing 10kV comprises a cable supporting mechanism, wherein the lower end of the cable supporting mechanism is provided with a control mechanism, and the lower end of the control mechanism is provided with a lifting mechanism;
the control mechanism comprises two mutually parallel roller structures 3 arranged under the cable fixing mechanism; the lifting mechanism comprises a stress structure, and the stress structure is connected with a supporting structure;
the cable supporting mechanism comprises a middle part 1, two cable supporting structures 2 are connected to the middle part 1, and the two cable supporting structures 2 are symmetrically arranged relative to the middle part 1.
When the cable is put up, the middle cable of the three cables sequentially passes through the two mutually parallel roller structures 3, and the other two cables are respectively arranged on the two cable support structures 2; the supporting structure is directly supported on the ground, so that operators are not required to ascend and install the supporting structure on the cross arm at the top of the pole, and the safety of overhead wires is improved and the overhead wire time is saved. The cable can be pulled and put into two cable supporting structures 2 by adopting the insulating operation rod, the cable is gently pulled to move on the cable supporting structures 2, the cable unfolding operation is realized, the operation efficiency is greatly improved, and the whole unfolding and paying-off process is simple, efficient, safe and reliable.
As shown in fig. 1-3, the intermediate member 1 mainly functions as a fixed control mechanism, and the intermediate member 1 may be of a structure common in the art, such as a plate material or the like. The cable supporting structure 2 is mainly used for supporting cables so as to realize wire arrangement on a certain height. The cable support structure 2 may be a structure common in the art, such as: a groove body with a groove.
As shown in fig. 1-3, the cable supporting structure 2 comprises a magnetic spring (not shown in the drawings) and a supporting cross rod 201, the supporting cross rod 201 is connected with the middle part 1, a first pulley 202 and a fixed ring 203 are arranged at one end of the supporting cross rod 201 far away from the middle part 1, a second pulley is arranged on the middle part 1, and two ends of the magnetic spring are respectively detachably connected with the fixed ring 203. And lifting the overhead line device which spans the 10kV overhead line to the 10kV overhead line by the resultant force of two persons, using an insulating rod to pull a hanging ring at one end of the magnetic force spring to the ground, and then using the insulating rod to pull the hanging ring at the other end of the magnetic force spring to the ground to drive the device on the overhead line to be spanned by the upper traction rope. After the new overhead wire is bound at one end of the traction rope, the new overhead wire is pulled to the ground by using the upper traction rope to span a cable supporting mechanism on the overhead wire, so that subsequent overhead wire operation is facilitated. Under the complex working condition that the terrain operation is inconvenient, the device can transversely move under the traction force of the overhead line, so that dangerous operation of fields and channels is avoided, and multi-working condition is met.
The cable supporting mechanism is in a herringbone shape or a straight shape. When the cable support mechanism is herringbone, as shown in fig. 1, the middle part 1 is at a high point, and the end of the cable support structure 2 away from the middle part 1 is at a low point. In case both satisfy the supporting weight, chevrons are preferred because they have better stability when supporting 10kV overhead 3-phase cables.
For ease of storage, the cable support mechanism may be a folded structure, as shown in fig. 1-3, with both cable support structures 2 hinged to the intermediate member 1. As shown in fig. 1-3, the folding structure may be a mechanical fold-over structure, and in particular, the support rail 201 may be formed from a plurality of rods of equal or different lengths hinged end to end. The folding structure may be a screw telescopic folding structure, specifically, the supporting cross bar 201 is a screw with telescopic folding function. The articulation may be achieved by a common hinge.
In the case of satisfying the supporting weight, the mechanical folding type is preferable because the mechanical folding type is simpler in structure, more time-saving in operation, and lighter in self weight.
As shown in fig. 1-3, two mutually parallel roller structures 3 may be mounted either at the intermediate member 1 (i.e. supported longitudinally in a neutral phase) or at the end of the support rail 201 remote from the intermediate member (i.e. supported laterally in a side phase), the roller structures 3 being arranged along the length of the cable. When two parallel roller structures 3 are installed at the middle part 1, the two roller structures 3 are respectively arranged at the front side and the rear side of the herringbone, and are symmetrically arranged with respect to the middle part 1, and a cable limiting part 204 is arranged at one end of the supporting cross rod 201 away from the middle part 1. Under the condition that the speed of a dragging cable is not less than 1m/s and the bearing weight is not less than 20kg, the two installation modes of the roller structure 3 can well move, but the self weight of a middle phase longitudinal support mode is lighter, so that the middle phase longitudinal support is used for controlling part sorting. The cable stop feature may be of a construction common in the art, such as: a harder rod, where the hardness requirement is: the cable is arranged on the rod body, and the rod body does not deform obviously. One end of the rod body is fixedly connected to the end of the supporting cross rod 201 far away from the middle part 1, and the other end is a free end; the spacing between the free end of the rod body and the support rail 201 is just slightly greater than the outer diameter of the cable.
The roller structure 3 may be a pulley commonly used in the art, such as a nylon pulley, an aluminum pulley, and the like. The nylon pulley is preferable because the nylon pulley has better protection and good movement on the overhead line under the condition that the towing cable speed is not less than 1m/s and the bearing weight is not less than 20 kg.
For conveniently carrying out the dragging atress auxiliary traction lateral shifting of many 10kV overhead line operation circuits, perhaps carry out lateral traction shifting and avoid danger in the inconvenient place of topography operation, 10kV overhead line device strides still includes the traction structure, the traction structure with lift the mechanism can dismantle the connection.
The stress structure is mainly used for bearing the weight of the cable and is used as a supporting point of the supporting structure. As shown in fig. 1-3, the stressed structure may be specifically as follows:
the stress structure comprises a stress frame, when two mutually parallel roller structures 3 are arranged at the middle part 1, the stress frame is connected with a mounting rod 301 in the roller structures 3, the stress frame is provided with a connecting piece 44 for connecting the supporting structure, and the connection at the stress frame can be detachable connection, so that the stress frame is convenient to store when not used.
The connecting piece 4 is including connecting the semicircle ring that two radiuses are different on the atress frame, and two semicircle rings are vertical setting and semicircle ring setting in upper portion of radius, bearing structure is including can run through the insulating bracing piece 401 of semicircle ring, as shown in fig. 4, the one end of insulating bracing piece 401 is provided with horizontal branch 402, the length of branch is less than the diameter of the semicircle ring of major radius. When the cable supporting device is used, one end of the insulating supporting rod 401 with the transverse supporting rod 402 sequentially penetrates through the lower semicircular ring and the upper semicircular ring, and the transverse supporting rod 402 is arranged outside the upper semicircular ring and used for supporting the upper semicircular ring so as to support the cable, the cable supporting mechanism and the control mechanism. The end of the insulated support bar 401 with the transverse struts 402 may be a small end.
The connector 4 is a self-locking device, which is a conventional structure in the art and will not be described in detail here. The self-locking buckle fixes the insulating support rod 401 on the stress frame. In practical application, the two specific structures of the connecting piece 4 meet the requirement that the single erection time is less than 60 seconds, and the self-locking buckle is more firm, so that the operation is not easy to slide off, and the self-locking buckle is preferable.
Under the condition that the two are satisfied with bearing 30kg of load, the conventional insulating rod is subjected to shaking deformation when the upper structure of the insulating rod is supported to be 7m higher from the ground, and the actual operation requirement cannot be satisfied. Therefore, the nonstandard insulating rod is selected, the structure of the nonstandard insulating rod is more stable, the bearing is larger, and the safety of operators can be ensured during operation.
As shown in fig. 5, the nonstandard insulating rod comprises a first insulating rod 6 and a second insulating rod 5, and the first insulating rod 6 and the second insulating rod 5 are arranged in parallel and are connected with each other. Specifically, a clamp 7 is sleeved on the first insulating rod 6, and a screw rod is connected to the clamp 7 and is connected with the second insulating rod 5 through a bolt.
It should be noted that: the nonstandard insulating rod refers to an insulating rod made of nonstandard sectional materials.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the invention, and is not meant to limit the scope of the invention, but to limit the invention to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (10)
1. The overhead line stringing device crossing 10kV is characterized by comprising a cable supporting mechanism, wherein the lower end of the cable supporting mechanism is provided with a control mechanism, and the lower end of the control mechanism is provided with a lifting mechanism;
the control mechanism comprises two mutually parallel roller structures arranged under the cable fixing mechanism; the lifting mechanism comprises a stress structure, and the stress structure is connected with a supporting structure;
the cable supporting mechanism comprises a middle part, two cable supporting structures are connected to the middle part, and the two cable supporting structures are symmetrically arranged relative to the middle part.
2. The overhead line straddling 10kV line overhead line assembly of claim 1, wherein the cable support mechanism is chevron-shaped or in-line.
3. A cross 10kV overhead line assembly according to claim 1, wherein the cable support structure and the intermediate member are hinged.
4. A 10kV overhead line assembly according to claim 3 wherein the cable support structure includes a support rail having a first pulley disposed on an end face thereof remote from the intermediate member; preferably, the intermediate member is provided with a second pulley, and the first pulley and the second pulley are arranged in parallel.
5. The overhead line stringing device for straddling 10kV according to claim 1, wherein the two mutually parallel roller structures are both arranged at the bottom of the middle part and are longitudinally supported in a middle phase, and a cable limiting part is arranged at one end of the cable supporting structure, which is far away from the middle part.
6. The overhead line assembly according to claim 1, wherein the two parallel roller structures are disposed at ends of the two cable supporting structures away from the intermediate member, respectively.
7. The overhead line stringing device for straddling 10kV according to claim 4, wherein the cable supporting mechanism is foldable, the cable supporting mechanism further comprises a magnetic spring, a fixing ring is arranged on the end face of the supporting cross rod, which is far away from the middle part, and two ends of the magnetic spring are detachably connected with the two fixing rings respectively.
8. The overhead line assembly across 10kV of claim 1, wherein the force-bearing structure comprises a force-bearing frame, and a connector coupled to the support structure is disposed on the force-bearing frame.
9. The overhead line wire-erecting device crossing 10kV overhead line according to claim 8, wherein the connecting piece comprises two semicircular rings with different radiuses connected to a stress frame, the two semicircular rings are longitudinally arranged and arranged on the upper part, the supporting structure comprises an insulating supporting rod capable of penetrating through the semicircular rings, one end of the insulating supporting rod is provided with a transverse supporting rod, and the length of the supporting rod is smaller than the diameter of the semicircular ring with a large radius; or; the connecting piece is a self-locking buckle.
10. The overhead line straddling apparatus of claim 1 further comprising a traction structure removably coupled to said lifting mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310773978.0A CN116742528A (en) | 2023-06-28 | 2023-06-28 | Cross 10kV overhead line stringing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310773978.0A CN116742528A (en) | 2023-06-28 | 2023-06-28 | Cross 10kV overhead line stringing device |
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| Publication Number | Publication Date |
|---|---|
| CN116742528A true CN116742528A (en) | 2023-09-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310773978.0A Pending CN116742528A (en) | 2023-06-28 | 2023-06-28 | Cross 10kV overhead line stringing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116742528A (en) |
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| 周荣长;: "35kV及以下输配电线路重要跨越改造分析", 科学技术创新, no. 18, 25 June 2018 (2018-06-25), pages 58 - 59 * |
| 李照新;李亚;: "220千伏输电线路跨越施工", 新疆电力, no. 04, 15 December 2005 (2005-12-15), pages 21 - 22 * |
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