CN110867767A - Auxiliary device for replacing 500kV heavy-load linear insulator string in electrified manner - Google Patents
Auxiliary device for replacing 500kV heavy-load linear insulator string in electrified manner Download PDFInfo
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- CN110867767A CN110867767A CN201911007745.XA CN201911007745A CN110867767A CN 110867767 A CN110867767 A CN 110867767A CN 201911007745 A CN201911007745 A CN 201911007745A CN 110867767 A CN110867767 A CN 110867767A
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- winch
- support
- bearing
- bearing support
- shaft
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- 239000012212 insulator Substances 0.000 title claims abstract description 28
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 24
- 238000004804 winding Methods 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Images
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
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- Electric Cable Installation (AREA)
Abstract
The invention discloses an auxiliary device for replacing a 500kV heavy-load linear insulator string in a charged manner, and aims to provide an auxiliary device capable of improving the working efficiency. The device comprises a left bearing support, a left bearing winch, a right bearing winch, a left winch supporting shaft, a right winch supporting shaft, a left wrench, a right bearing support, a locking block adjusting bolt, a lifting ring, a base adjusting locking block and a middle reinforcing support; two ends of the left winch support shaft are respectively connected with the upper end of the left bearing support and the upper end of the middle reinforcing support through bearings; two ends of the right winch support shaft are respectively connected with the upper end of the right bearing support and the upper end of the middle reinforcing support through bearings; the hoisting ring is fixedly arranged at the upper end of the middle reinforcing bracket; the left wrench is fixedly arranged at the left end of the left winch supporting shaft, and the right wrench is fixedly arranged at the right end of the right winch supporting shaft; and the front side and the rear side of the lower end of the left force bearing support are provided with supporting seats matched with the cross arm supports of the tower.
Description
Technical Field
The invention relates to the technical field of power grid maintenance equipment, in particular to an auxiliary device for replacing a 500kV heavy-load linear insulator string in a charged manner.
Background
In the process of replacing the 500kV linear insulator string, the selection of the lifting point position and the fixing mode of the lifting point by an operator are very important. Since the dead weight of a single piece of the 500kV linear insulator string is larger, taking a string of 30 LDQ160 glass insulators as an example, the net weight is about 200 kilograms, if the friction coefficient is considered, and the iron tower operation surface left for operators is narrow, the insulator string is difficult to hoist, dismantle and install, and the physical consumption and the operation efficiency of the operators are seriously tested. According to statistics, if the hanging point position of an operator and the fixing mode of the hanging point are not properly selected, even when the experienced operator restores the connection between the insulator and the connecting hardware, because no special operating tool exists, the insulator string needs to be restored to the installation position, the installation restoration time is as long as about 2 hours, the labor intensity of the operator is greatly increased in such a long time invisibly, and operation failure is often caused because the tool does not meet the requirements when some special insulator strings are encountered. The connection of the insulator string cannot be recovered in time, and the safety of operating personnel, line equipment and a power grid is seriously threatened. Secondly, because the operation time is long, the work can not be finished according to the planned time, which may cause rework, and simultaneously, the personnel, the vehicle and the production cost are increased by times.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides an auxiliary device for replacing a 500kV heavy-load linear insulator string in a charged manner. This auxiliary device can reduce operating time by a wide margin, reduces circuit maintainer's intensity of labour, reduces the manufacturing cost of enterprise, improves circuit maintainer's work efficiency by a wide margin, reduces operation personnel safety risk, promotes transmission line power supply reliability.
In order to solve the technical problems, the invention is realized by the following technical scheme:
an auxiliary device for replacing a 500kV heavy-load linear insulator string in a charged manner comprises a left bearing support, a left bearing winch, a right bearing winch, a left winch support shaft, a right winch support shaft, a left wrench, a right bearing support, a locking block adjusting bolt, a lifting ring, a base adjusting locking block and a middle reinforcing support; two ends of the left winch support shaft are respectively connected with the upper end of the left bearing support and the upper end of the middle reinforcing support through bearings; two ends of the right winch support shaft are respectively connected with the upper end of the right bearing support and the upper end of the middle reinforcing support through bearings; the hoisting ring is fixedly arranged at the upper end of the middle reinforcing bracket; the left wrench is fixedly arranged at the left end of the left winch supporting shaft, and the right wrench is fixedly arranged at the right end of the right winch supporting shaft; the front side and the rear side of the lower end of the left force bearing support and the front side and the rear side of the lower end of the right force bearing support are both provided with a supporting seat matched with the tower cross arm support; the base adjusting locking block is in a concave shape, and the supporting seat is clamped at the opening side; the locking block adjusting bolt penetrates through the base adjusting locking block, and a plurality of base adjusting holes for connecting the locking block adjusting bolt are formed in the supporting seat; a first pawl is fixedly arranged on the left force-bearing support and close to the left end of the left winch support shaft, and a first ratchet wheel matched with the first pawl is arranged on the left wrench; a second pawl is fixedly arranged on the right force-bearing support and close to the right end of the right winch support shaft, and a second ratchet wheel matched with the second pawl is arranged on the right wrench; the left bearing winch is fixedly sleeved on the left winch supporting shaft, and the right bearing winch is fixedly sleeved on the right winch supporting shaft; and the left bearing winch and the right bearing winch are respectively connected with a bearing lifting rope in a winding way, and the end parts of the bearing lifting ropes are respectively fixedly provided with a bearing lifting ring.
Preferably, the lower ends of the left force bearing support, the right force bearing support and the middle reinforcing support are provided with cross arm clamping grooves, auxiliary fixing blocks are arranged on the left force bearing support and the right force bearing support and on one side of the cross arm clamping grooves, and fixing butterfly bolts penetrate through the auxiliary fixing blocks.
Preferably, the lifting ring is connected with the middle reinforcing bracket through a threaded structure.
Preferably, the left wrench is connected to the left winch support shaft by a nut.
Preferably, the right wrench is connected to the right winch support shaft by a nut.
Compared with the prior art, the invention has the following advantages:
the auxiliary device can effectively solve the difficult problem that the 500kV linear insulator string is difficult to lift, remove and install, so that the insulator string is always in a horizontal position in the lifting process, the auxiliary device has small influence on the selection of a lifting point, operators can conveniently and easily remove and connect the insulator string and a connecting fitting, the operation time can be greatly reduced, the labor intensity of line maintenance personnel is reduced, the production cost of enterprises is reduced, the working efficiency of the line maintenance personnel is greatly improved, the safety risk of the operators is reduced, the available coefficient of a power transmission line is improved, and the power supply reliability of the power transmission line is improved.
Drawings
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, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a first usage state of the present invention.
Fig. 2 is a partially enlarged view of the second pawl and the second ratchet, and the structure of the first pawl and the first ratchet is the same as that of the second pawl and the second ratchet.
Fig. 3 is a schematic structural diagram of a second usage state of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention. In the following description, for the purpose of clearly illustrating the structure and operation of the present invention, reference will be made to the accompanying drawings by way of directional terms, but terms such as "front", "rear", "left", "right", "up", "down", etc. should be construed as words of convenience and should not be construed as limiting terms.
Fig. 1-2 shows an auxiliary device for replacing a 500kV heavy load linear insulator string in an electrified manner, which is mainly used when a tower cross arm tower material 30 is faced upward in the present embodiment, and the auxiliary device includes a left load-bearing support 1, a left load-bearing winch 2, a right load-bearing winch 3, a left winch support shaft 4, a right winch support shaft 5, a left wrench 6, a right wrench 7, a right load-bearing support 8, a lock block adjusting bolt 9, a lifting ring 10, a base adjusting lock block 11 and a middle reinforcing support 12; two ends of the left winch support shaft 4 are respectively connected with the upper end of the left force-bearing support 1 and the upper end of the middle reinforcing support 12 through bearings; two ends of the right winch support shaft 5 are respectively connected with the upper end of the right bearing support 8 and the upper end of the middle reinforcing support 12 through bearings; the hoisting ring 10 is fixedly arranged at the upper end of the middle reinforcing bracket 12; the left spanner 6 is fixedly arranged at the left end of the left winch supporting shaft 4, and the right spanner 7 is fixedly arranged at the right end of the right winch supporting shaft 5; the front side and the rear side of the lower end of the left force bearing support 1 and the front side and the rear side of the lower end of the right force bearing support 8 are both provided with a support seat 13 which is matched with the tower cross arm support; the base adjusting locking block 11 is in a concave shape, and the supporting seat 13 is clamped at the opening side; the locking block adjusting bolt 9 penetrates through the base adjusting locking block 11, and a plurality of base adjusting holes 14 for connecting the locking block adjusting bolt 9 are formed in the supporting seat 13; a first pawl (not shown in the figure) is fixedly arranged on the left force-bearing support 1 close to the left end of the left winch support shaft 4, and a first ratchet wheel (not shown in the figure) matched with the first pawl is arranged on the left wrench 6; a second pawl 15 is fixedly arranged on the right force-bearing support 8 and close to the right end of the right winch support shaft 5, and a second ratchet wheel 16 matched with the second pawl 15 is arranged on the right wrench 7; the left bearing winch 2 is fixedly sleeved on the left winch support shaft 4, and the right bearing winch 3 is fixedly sleeved on the right winch support shaft 5; bearing lifting ropes 17 are wound on the left bearing winch 2 and the right bearing winch 3, and bearing lifting rings 18 are fixedly arranged at the end parts of the bearing lifting ropes 17.
In this embodiment, the lifting ring 10 is connected to the middle reinforcing bracket 12 by a screw structure. The left wrench 6 is connected with the left winch support shaft 4 through a nut. The right wrench 7 is connected to the right winch support shaft 5 by a nut. The first ratchet wheel and the second ratchet wheel adopt reversing pawls and respectively form a bidirectional ratchet mechanism with the first pawl and the second mechanism, and the forward and reverse rotation of the left bearing winch and the right bearing winch can be controlled by shifting the direction of the first ratchet wheel and the direction of the second ratchet wheel, so that the insulator string 40 is lifted. The base adjusting holes are horizontally arranged in a straight line and can be adjusted left and right, so that the installation of different tower shapes is facilitated during operation. The left spanner and the right spanner are respectively positioned on two sides of the left bearing support 1 and the right bearing support 8 and connected with the winch supporting shaft, and independent retraction and release can be realized.
When the auxiliary device is used, the assembled auxiliary device is lifted to the position of a tower cross arm through a lifting ring and is moved to the position above a 500kV line linear string insulator hanging point, the lower ends of a left bearing support, a right bearing support and a middle reinforcing support are supported on a section bar of the tower cross arm, then the opening sides of all base adjusting locking blocks are simultaneously clamped into the section bar and a supporting seat of the tower cross arm, then locking block adjusting bolts are screwed, the auxiliary device is reliably fixed on the tower cross arm through the base adjusting locking blocks, a left spanner and a right spanner can be operated to achieve retraction of a bearing lifting rope, and after the bearing lifting ring of the bearing lifting rope reaches a preset position, the bearing lifting ring can be connected with a lifting lug of an insulator string 40.
As a further improvement of the above embodiment, in order to meet the requirement that the tower cross arm tower material 30 is used when one steel edge of the steel edge is vertically upward, the lower ends of the left carrier bracket 1, the right carrier bracket 8 and the middle reinforcing bracket 12 are provided with cross arm clamping grooves 19, an auxiliary fixing block 20 is arranged on one side of the cross arm clamping grooves 19 on the left carrier bracket 1 and the right carrier bracket 8, a butterfly bolt (not shown in the figure) is fixed on the auxiliary fixing block 20 in a penetrating manner, and the auxiliary fixing block 20 is provided with a threaded hole 21 for the butterfly bolt to penetrate therethrough. In a use state, as shown in fig. 3, the cross arm clamping grooves 19 of the left carrier bracket 1, the right carrier bracket 8 and the middle reinforcing bracket 12 are clamped into a tower cross arm tower material, and then butterfly bolts are screwed and fixed on the auxiliary fixing blocks to realize the connection and fixation of the auxiliary device and the tower cross arm. Through increasing cross arm draw-in groove and relevant component, applicable in different tower types and tower material, have certain commonality.
The working principle is as follows:
the auxiliary hoisting device is assembled into a whole by a left bearing support 1, a right bearing support 8 and a middle reinforcing support 12, and is fixed with an iron tower cross arm by a base adjusting locking block 11 and a locking block adjusting bolt 9 in a bolt fastening mode to form a main bearing part of the auxiliary hoisting device. The left bearing support 11 and the right bearing support 87 are distributed on the left side and the right side of the hoisting auxiliary device and are vertically arranged on the cross arm of the iron tower.
The invention ensures that the insulator string is always in a horizontal position in the hoisting process, enables operators to conveniently and easily detach and connect the insulator string and the connecting hardware fitting, can greatly reduce the operation time, reduce the labor intensity of line maintenance personnel, greatly improve the working efficiency of the line maintenance personnel, reduce the safety risk of the operators, improve the availability factor of the transmission line and improve the power supply reliability of the transmission line.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1. The utility model provides an auxiliary device of 500kV heavy load straight line insulator chain is changed in electrified, includes left load support, left load capstan winch, right load capstan winch, left part capstan winch back shaft, right part capstan winch back shaft, left part spanner, right load support, locking piece adjusting bolt, plays rings, base regulation locking piece and middle enhancement support, its characterized in that: two ends of the left winch support shaft are respectively connected with the upper end of the left bearing support and the upper end of the middle reinforcing support through bearings; two ends of the right winch support shaft are respectively connected with the upper end of the right bearing support and the upper end of the middle reinforcing support through bearings; the hoisting ring is fixedly arranged at the upper end of the middle reinforcing bracket; the left wrench is fixedly arranged at the left end of the left winch supporting shaft, and the right wrench is fixedly arranged at the right end of the right winch supporting shaft; the front side and the rear side of the lower end of the left force bearing support and the front side and the rear side of the lower end of the right force bearing support are both provided with a supporting seat matched with the tower cross arm support; the base adjusting locking block is in a concave shape, and the supporting seat is clamped at the opening side; the locking block adjusting bolt penetrates through the base adjusting locking block, and a plurality of base adjusting holes for connecting the locking block adjusting bolt are formed in the supporting seat; a first pawl is fixedly arranged on the left force-bearing support and close to the left end of the left winch support shaft, and a first ratchet wheel matched with the first pawl is arranged on the left wrench; a second pawl is fixedly arranged on the right force-bearing support and close to the right end of the right winch support shaft, and a second ratchet wheel matched with the second pawl is arranged on the right wrench; the left bearing winch is fixedly sleeved on the left winch supporting shaft, and the right bearing winch is fixedly sleeved on the right winch supporting shaft; and the left bearing winch and the right bearing winch are respectively connected with a bearing lifting rope in a winding way, and the end parts of the bearing lifting ropes are respectively fixedly provided with a bearing lifting ring.
2. The auxiliary device for the live replacement of the 500kV heavy-load linear insulator string according to claim 1, is characterized in that: the lower extreme of left force-bearing support, right force-bearing support and middle reinforcing support is provided with the cross arm draw-in groove, on left force-bearing support and the right force-bearing support, be located one side of cross arm draw-in groove and be provided with supplementary fixed block, supplementary fixed block wears to be equipped with fixed butterfly bolt.
3. The auxiliary device for the live replacement of the 500kV heavy-load linear insulator string according to claim 1 or 2, is characterized in that: the lifting ring is connected with the middle reinforcing bracket through a threaded structure.
4. The auxiliary device for the live replacement of the 500kV heavy-load linear insulator string according to claim 1 or 2, is characterized in that: the left spanner is connected with the left winch supporting shaft through a nut.
5. The auxiliary device for the live replacement of the 500kV heavy-load linear insulator string according to claim 1 or 2, is characterized in that: the right spanner is connected with the right winch supporting shaft through a nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911007745.XA CN110867767A (en) | 2019-10-22 | 2019-10-22 | Auxiliary device for replacing 500kV heavy-load linear insulator string in electrified manner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911007745.XA CN110867767A (en) | 2019-10-22 | 2019-10-22 | Auxiliary device for replacing 500kV heavy-load linear insulator string in electrified manner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110867767A true CN110867767A (en) | 2020-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911007745.XA Pending CN110867767A (en) | 2019-10-22 | 2019-10-22 | Auxiliary device for replacing 500kV heavy-load linear insulator string in electrified manner |
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|---|---|
| CN (1) | CN110867767A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004023858A (en) * | 2002-06-14 | 2004-01-22 | Kurihara Kogyo Co Ltd | Cable transferring method and device for stringing cable |
| CN201315445Y (en) * | 2008-11-11 | 2009-09-23 | 河南省电力公司平顶山供电公司 | Slinger fixing device for hanging iron tower angle steel pulley |
| CN101771253A (en) * | 2009-01-05 | 2010-07-07 | 华北电力科学研究院有限责任公司 | Line raising equipment and line raising method for live working of electric transmission line |
| JP2011072150A (en) * | 2009-09-28 | 2011-04-07 | Chugoku Electric Power Co Inc:The | Sheave device |
| CN203301052U (en) * | 2013-03-15 | 2013-11-20 | 贵州电网公司输电运行检修分公司 | Clamp for replacing straight tower insulator string on power transmission line at voltage of 220 kV and above |
| CN103663235A (en) * | 2013-09-10 | 2014-03-26 | 国家电网公司 | Hand-jack for rod |
| CN203861805U (en) * | 2014-05-12 | 2014-10-08 | 武汉科技大学 | Deep well constant force life saving pliers |
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| CN209428023U (en) * | 2018-10-22 | 2019-09-24 | 广西电网有限责任公司贵港供电局 | Suspension apparatus is drawn high for replace linear insulator |
| CN210723961U (en) * | 2019-10-22 | 2020-06-09 | 云南电网有限责任公司曲靖供电局 | Auxiliary device for replacing 500kV heavy-load linear insulator string in electrified manner |
-
2019
- 2019-10-22 CN CN201911007745.XA patent/CN110867767A/en active Pending
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| JP2004023858A (en) * | 2002-06-14 | 2004-01-22 | Kurihara Kogyo Co Ltd | Cable transferring method and device for stringing cable |
| CN201315445Y (en) * | 2008-11-11 | 2009-09-23 | 河南省电力公司平顶山供电公司 | Slinger fixing device for hanging iron tower angle steel pulley |
| CN101771253A (en) * | 2009-01-05 | 2010-07-07 | 华北电力科学研究院有限责任公司 | Line raising equipment and line raising method for live working of electric transmission line |
| JP2011072150A (en) * | 2009-09-28 | 2011-04-07 | Chugoku Electric Power Co Inc:The | Sheave device |
| CN203301052U (en) * | 2013-03-15 | 2013-11-20 | 贵州电网公司输电运行检修分公司 | Clamp for replacing straight tower insulator string on power transmission line at voltage of 220 kV and above |
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Address after: 655099 No.137, middle section of Cuifeng Road, Qujing City, Yunnan Province Applicant after: Qujing Power Supply Bureau, Yunnan Power Grid Go., Ltd. Address before: 655099 No. 504 Qilin West Road, Qilin District, Qujing City, Yunnan Province Applicant before: Qujing Power Supply Bureau, Yunnan Power Grid Go., Ltd. |
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