CN114069467A - Device is changed to suspension insulator above 220kV - Google Patents
Device is changed to suspension insulator above 220kV Download PDFInfo
- Publication number
- CN114069467A CN114069467A CN202111202695.8A CN202111202695A CN114069467A CN 114069467 A CN114069467 A CN 114069467A CN 202111202695 A CN202111202695 A CN 202111202695A CN 114069467 A CN114069467 A CN 114069467A
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- CN
- China
- Prior art keywords
- insulator
- shaft sleeve
- insulating rod
- wire
- suspension
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000012212 insulator Substances 0.000 title claims abstract description 92
- 239000000725 suspension Substances 0.000 title claims abstract description 40
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 74
- 229910052742 iron Inorganic materials 0.000 claims abstract description 37
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Electric Cable Installation (AREA)
Abstract
The invention relates to the technical field of electric power overhaul equipment, in particular to a device for replacing a suspension insulator of 220kV or more. The device comprises a fixed fixture for a line hanging iron, a line hanging hook, an insulating rod, a bearing, a bidirectional ratchet mechanism, a shaft sleeve and an insulator fixture; the wire hanging iron fixing clamp is fixed on the wire hanging iron, one end of the insulating rod is in threaded connection with the wire hanging iron fixing clamp, the shaft sleeve is sleeved on the insulating rod, and the shaft sleeve can slide along the insulating rod and is fixed through the limiting pin; the bidirectional ratchet mechanism is fixedly connected to the shaft sleeve, the bearing is installed on the shaft sleeve, the insulator clamp is fixed to the bearing, the insulator clamp can be clamped to the insulator, the wire hanging hook is fixedly connected to the other end of the insulating rod, and the wire hanging hook can be hooked to a wire. The invention has simple and convenient operation and high safety, and greatly improves the working efficiency of replacing the suspension insulator.
Description
Technical Field
The invention relates to the technical field of electric power overhaul equipment, in particular to a device for replacing a suspension insulator of 220kV or more.
Background
The 220kV suspension insulator string is formed by splicing a plurality of insulator sheets, the height of the suspension insulator string can reach several meters, cracking and damage are frequent occurrences in the severe environment of open air, high temperature and high pressure, and the suspension insulator string needs to be replaced in time when abnormal conditions exist in order to ensure normal power supply.
At present, a special tool for replacing a single-piece jumper insulator is not available, a transmission rope is usually used as a hoisting tool when the single-piece jumper insulator is replaced in the maintenance operation of a 220kV and above power transmission line, the insulator is lifted through the transmission rope, and an insulator piece is very easy to rock and fall off when the insulator string is opened, so that great potential safety hazards are caused to operating personnel. Meanwhile, the operation method has high requirements on the operation technology and the body coordination of operators, wastes time and labor when being operated, increases the power failure operation time and reduces the power supply amount.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a device for replacing a suspension insulator of 220kV or more. The operation is simple and convenient, the safety is high, and the work efficiency of replacing the suspension insulator is greatly improved.
In order to achieve the purpose, the invention adopts the following technical scheme:
a device for replacing a suspension insulator of 220kV or more comprises a wire hanging iron fixing clamp, a wire hanging hook, an insulating rod, a bearing, a bidirectional ratchet mechanism, a shaft sleeve and an insulator clamp; the wire hanging iron fixing clamp is fixed on the wire hanging iron, one end of the insulating rod is in threaded connection with the wire hanging iron fixing clamp, the shaft sleeve is sleeved on the insulating rod, and the shaft sleeve can slide along the insulating rod and is fixed through the limiting pin; the bidirectional ratchet mechanism is fixedly connected on the shaft sleeve, the bearing is arranged on the shaft sleeve, and the insulator clamp is fixed on the bearing; the insulator clamp can be clamped on the insulator, the suspension wire hook is fixedly connected to the other end of the insulating rod, and the suspension wire hook can be hooked on the wire.
One end of the insulating rod is provided with a stud, the wire hanging iron fixing clamp is provided with a threaded hole corresponding to the stud, and one end of the insulating rod is screwed into the threaded hole through the stud and is connected with the wire hanging iron fixing clamp.
A plurality of limiting pin holes corresponding to the insulators are axially and uniformly distributed in the insulating rod.
The middle part of the suspension wire hook is provided with an upward bend, and the end part of the suspension wire hook is provided with an inward bend.
The insulator fixture comprises a clamping head and a connecting rod, the clamping head is provided with a clamping hook corresponding to the insulator, and the connecting rod is fixedly connected to the bearing.
The bearing is a bearing.
The bidirectional ratchet mechanism comprises a ratchet wheel, a pawl, a wrench head, a wrench rod, a spring, a top block and a spring seat; the ratchet wheel is fixedly connected on the shaft sleeve, the wrench head is sleeved on the shaft sleeve, the pawl is hinged on the wrench head, the spring seat is fixedly connected on the wrench head, the spring is arranged in the spring seat, the top block is connected with the spring, the end part of the pawl is propped on the top block, and the wrench rod is in threaded connection with the wrench head; when the lever swings, the driving pawl is inserted into the ratchet wheel teeth to push the ratchet wheel to rotate in the same direction.
The insulating rod is made of hard materials for 220kV high-voltage insulation.
And the shaft sleeve is provided with a circular through hole corresponding to the limiting pin.
Compared with the prior art, the invention has the beneficial effects that:
the center of the wire hanging iron fixing clamp is provided with a threaded hole matched with the stud of the insulating rod, and the stud is screwed into the wire hanging iron fixing clamp during installation. The whole device is fixed on the line hanging iron of the tower through the fixing clamp, the shaft sleeve is sleeved into the insulating rod and slides to the position of the insulator piece to be replaced, the insulator piece is fixed on the insulating rod through the limiting pin, and then the insulator clamp connected with the shaft sleeve is clamped on the next insulator piece to be replaced. When the two-way ratchet mechanism lever is rotated, the limiting pin is locked, the whole insulating rod rotates, the insulator clamp is kept not to rotate under the action of the bearing, but moves upwards, the insulator piece below is lifted, the spring pin connecting the upper insulator piece and the lower insulator piece is taken out, the insulator piece needs to be replaced, the insulator piece below is separated from the insulator piece below and adjacent to the insulator piece, the damaged insulator piece is taken down, and otherwise, the installation of a new insulator piece is completed.
The invention replaces a transfer rope as a hoisting tool, and an operator can correspondingly replace the insulator to be replaced to operate under the condition of adjusting the operation position without moving up and down, so that the operation is simple and convenient, the safety is high, and the work efficiency of replacing the suspension insulator is greatly improved.
Drawings
FIG. 1 is a schematic view of the present invention in a three-dimensional structure and an operating state;
FIG. 2 is a schematic perspective view of the present invention (not including a wire-hanging fixing clip);
FIG. 3 is a schematic front sectional view of the present invention;
FIG. 4 is a schematic perspective view of the wire-suspending fixing clip of the present invention;
fig. 5 is a schematic view of the structure of the insulator holder of the present invention;
FIG. 6 is a schematic view of the structure of the bi-directional ratchet mechanism of the present invention.
In the figure: 1-wire-hanging iron fixing clamp 2-wire-hanging hook 3-insulating rod 4-bearing 5-bidirectional ratchet mechanism 6-shaft sleeve 7-insulator clamp 8-wire-hanging iron angle steel 9-limiting pin 10-insulator piece 11 to be replaced, threaded through hole 12-groove 31-stud 32-limiting pin hole 51-ratchet 52-pawl 53-wrench head 54-wrench rod 55-spring 56-top block 57-spring seat 71-chuck 72-connecting rod
Detailed Description
The following further describes embodiments of the present invention with reference to the accompanying drawings:
as shown in fig. 1 to 6, a device for replacing a suspension insulator of 220kV or more comprises a suspension iron fixing clamp 1, a suspension hook 2, an insulating rod 3, a bearing 4, a bidirectional ratchet mechanism 5, a shaft sleeve 6 and an insulator clamp 7.
As shown in fig. 4, the wire-hanging iron fixing clamp 1 is provided with a threaded through hole 11 at the center, and grooves 12 corresponding to the wire-hanging iron angle steels 8 are provided at both sides of the threaded through hole 11.
As shown in fig. 1 and 3, the wire-hanging iron fixing clamp 1 is clamped on the wire-hanging iron angle steel 8 through the groove 12, and is further fixed on the wire-hanging iron.
The insulating rod 3 is made of insulating hard materials, a stud 31 corresponding to the threaded through hole 11 is arranged at the top end of the insulating rod 3, and the top end of the insulating rod 3 is screwed into the threaded through hole 11 through the stud 31 to be connected with the wire hanging iron fixing clamp 1.
A plurality of limiting pin holes 32 corresponding to the distance between the insulator sheets of the suspension insulator are axially and uniformly distributed on the insulating rod 3, the shaft sleeve 6 is sleeved on the insulating rod 3, a circular through hole corresponding to the limiting pin 9 is formed in the shaft sleeve 6, the shaft sleeve 6 can slide along the insulating rod 3 and penetrates through the circular through hole and the limiting pin holes 32 through the limiting pin 9, and the shaft sleeve 6 is fixed on the insulating rod 3. The fixing positions of the insulator fixture 7 and the shaft sleeve 6 corresponding to the insulator 10 to be replaced can be accurately found through different limiting pin holes 32, the stud shrinking stroke is reduced, and the purpose of quick replacement is achieved.
The suspension wire hook 2 is fixedly connected to the bottom end of the insulating rod 3, the middle of the suspension wire hook 2 is provided with an upward bend, and the end of the suspension wire hook 2 is provided with an inward bend, so that the suspension wire hook 2 can be stably hooked on a wire to avoid falling off.
As shown in fig. 1 and 5, the insulator fixture 7 includes a chuck 71 and a connecting rod 72, the chuck 71 is provided with a hook corresponding to the shape of the insulator for being clamped on the insulator, and the connecting rod 72 is fixedly connected to the outer wall of the outer ring of the bearing 4. The bearing 4 adopts a bearing and a tapered roller bearing capable of bearing axial force and radial force, and the inner ring of the bearing 4 is sleeved on the shaft sleeve 6.
As shown in fig. 6, the bidirectional ratchet mechanism 5 includes a ratchet 51, a pawl 52, a trigger 53, a lever 54, a spring 55, a top block 56 and a spring seat 57. The ratchet wheel 5 is installed on the shaft sleeve 6 through a key, the wrench head 53 is sleeved on the shaft sleeve 6, the pawl 52 is hinged on the wrench head 53, the spring seat 57 is fixedly connected on the wrench head 53, one end of the spring 55 is fixedly connected in the spring seat 57, the other end of the spring 55 is abutted on the ejector block 56, the end part of the pawl 52 is abutted on the ejector block 56, and the wrench rod 53 is in threaded connection with the wrench head 53. The rotation of the trigger 53 drives the pawl 52 to insert into the ratchet teeth to push the ratchet 51 to rotate in the same direction.
The working principle and the working process of the invention are as follows:
as shown in fig. 1-3, 1) first, the insulator clamp 7 and the bidirectional ratchet mechanism 5 are installed on the shaft sleeve 6, then the shaft sleeve 6 is sleeved into the insulating rod 3, and then the stud 31 is screwed into the wire-hanging iron fixing clamp 1.
2) The wire hanging iron fixing clamp 1 penetrates through the cross arm wire hanging iron upwards to be clamped on the wire hanging iron angle steel 8, the upper end of the wire hanging iron angle steel 8 is clamped into the groove 12, and the whole device is hung on the tower wire hanging iron through the wire hanging iron fixing clamp 1. The suspension wire hook 2 is hooked on the wire, and then the bottom end of the insulating rod 3 is fixed, so that the shaking of the insulating rod is avoided.
3) The shaft sleeve 6 is slid up and down to the position of the insulator piece 10 to be replaced, the insulator clamp 7 on the shaft sleeve 6 is clamped on the insulator piece 10 which is next to the insulator piece 10 to be replaced, and meanwhile, the shaft sleeve 6 is fixed on the insulating rod 3 at the corresponding position through the limiting pin 9.
4) When the pull rod 54 is rotated, the shaft sleeve 6 and the insulating rod 3 are connected into a whole by the limit pin 9, the whole insulating rod 3 rotates, and the insulator clamp 7 is kept to be not rotated under the action of the bearing 4. The insulating rod 3 continuously moves upwards, the insulator piece below the insulator piece 10 to be replaced is lifted at the moment, the upper insulator spring pin and the lower insulator spring pin are taken out, the insulator piece 10 to be replaced is separated from the insulator piece below, and then the damaged insulator piece is taken down.
5) And connecting a new insulator sheet with the insulator sheet below, rotating the pull rod 54 in the opposite direction, and continuously moving the whole insulation rod 3 downwards along with rotation to return to the initial position to finish the replacement of the insulator sheet.
The invention replaces a transfer rope as a hoisting tool, and an operator can correspondingly replace the insulator to be replaced to complete the replacement of the damaged insulator piece under the condition of adjusting the operation position without moving up and down, so that the operation is simple and convenient, the safety is high, and the working efficiency of replacing the suspension insulator is greatly improved.
The above embodiments are implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are given, but the scope of the present invention is not limited to the above embodiments. The methods used in the above examples are conventional methods unless otherwise specified.
Claims (10)
1. The utility model provides a device is changed to 220kV and above suspension insulator which characterized in that: the device comprises a fixed fixture for a line hanging iron, a line hanging hook, an insulating rod, a bearing, a bidirectional ratchet mechanism, a shaft sleeve and an insulator fixture; the wire hanging iron fixing clamp can be fixed on the wire hanging iron, one end of the insulating rod is in threaded connection with the wire hanging iron fixing clamp, the shaft sleeve is sleeved on the insulating rod, and the shaft sleeve can slide along the insulating rod and is fixed through the limiting pin; the bidirectional ratchet mechanism is fixedly connected on the shaft sleeve, the bearing is arranged on the shaft sleeve, and the insulator clamp is fixed on the bearing; the insulator clamp can be clamped on the insulator, the suspension wire hook is fixedly connected to the other end of the insulating rod, and the suspension wire hook can be hooked on the wire.
2. A suspension insulator changing apparatus according to claim 1, wherein said apparatus further comprises: one end of the insulating rod is provided with a stud, the wire hanging iron fixing clamp is provided with a threaded hole corresponding to the stud, and one end of the insulating rod is screwed into the threaded hole through the stud and is connected with the wire hanging iron fixing clamp.
3. A suspension insulator changing apparatus according to claim 1, wherein said apparatus further comprises: a plurality of limiting pin holes corresponding to the insulators are axially and uniformly distributed in the insulating rod.
4. A suspension insulator changing apparatus according to claim 1, wherein said apparatus further comprises: the middle part of the suspension wire hook is provided with an upward bend, and the end part of the suspension wire hook is provided with an inward bend.
5. A suspension insulator changing apparatus according to claim 1, wherein said apparatus further comprises: the insulator fixture comprises a clamping head and a connecting rod, the clamping head is provided with a clamping hook corresponding to the insulator, and the connecting rod is fixedly connected to the bearing.
6. A suspension insulator changing apparatus according to claim 1, wherein said apparatus further comprises: the bearing is a bearing.
7. A suspension insulator changing apparatus according to claim 1, wherein said apparatus further comprises: the bidirectional ratchet mechanism comprises a ratchet wheel, a pawl, a wrench head, a wrench rod, a spring, a top block and a spring seat; the ratchet wheel is fixedly connected on the shaft sleeve, the wrench head is sleeved on the shaft sleeve, the pawl is hinged on the wrench head, the spring seat is fixedly connected on the wrench head, the spring is arranged in the spring seat, the top block is connected with the spring, the end part of the pawl is propped on the top block, and the wrench rod is in threaded connection with the wrench head; when the lever swings, the driving pawl is inserted into the ratchet wheel teeth to push the ratchet wheel to rotate in the same direction.
8. A suspension insulator changing apparatus according to claim 1, wherein said apparatus further comprises: the insulating rod is made of insulating hard materials.
9. A suspension insulator changing apparatus according to claim 1, wherein said apparatus further comprises: and the shaft sleeve is provided with a circular through hole corresponding to the limiting pin.
10. A suspension insulator changing apparatus according to claim 1, wherein said apparatus further comprises: the wire hanging iron fixing clamp is provided with a groove corresponding to the wire hanging iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111202695.8A CN114069467A (en) | 2021-10-15 | 2021-10-15 | Device is changed to suspension insulator above 220kV |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111202695.8A CN114069467A (en) | 2021-10-15 | 2021-10-15 | Device is changed to suspension insulator above 220kV |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114069467A true CN114069467A (en) | 2022-02-18 |
Family
ID=80234636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111202695.8A Pending CN114069467A (en) | 2021-10-15 | 2021-10-15 | Device is changed to suspension insulator above 220kV |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114069467A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116706768A (en) * | 2023-08-01 | 2023-09-05 | 国网山东省电力公司宁阳县供电公司 | Anti-drop structure for electric tower cable installation |
-
2021
- 2021-10-15 CN CN202111202695.8A patent/CN114069467A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116706768A (en) * | 2023-08-01 | 2023-09-05 | 国网山东省电力公司宁阳县供电公司 | Anti-drop structure for electric tower cable installation |
| CN116706768B (en) * | 2023-08-01 | 2024-01-12 | 国网山东省电力公司宁阳县供电公司 | Anti-drop structure for electric tower cable installation |
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