CN104037666B - Device used for replacing spacers on ultra-high voltage transmission line - Google Patents
Device used for replacing spacers on ultra-high voltage transmission line Download PDFInfo
- Publication number
- CN104037666B CN104037666B CN201410315647.3A CN201410315647A CN104037666B CN 104037666 B CN104037666 B CN 104037666B CN 201410315647 A CN201410315647 A CN 201410315647A CN 104037666 B CN104037666 B CN 104037666B
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- Prior art keywords
- oil cylinder
- cavity
- transmission line
- conductor spacer
- changing
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- 125000006850 spacer group Chemical group 0.000 title claims abstract description 33
- 230000005540 biological transmission Effects 0.000 title claims abstract description 20
- 239000004020 conductor Substances 0.000 claims description 36
- 230000006835 compression Effects 0.000 claims description 17
- 238000007906 compression Methods 0.000 claims description 17
- 230000001105 regulatory effect Effects 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 10
- 239000000945 filler Substances 0.000 claims description 7
- 230000007704 transition Effects 0.000 claims description 3
- 239000003921 oil Substances 0.000 abstract description 34
- 239000010720 hydraulic oil Substances 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract description 2
- 230000000149 penetrating effect Effects 0.000 abstract 2
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000006837 decompression Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000004995 multiple fission Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
- Electric Cable Installation (AREA)
Abstract
The invention discloses a general tool used for replacing spacers on an ultra-high voltage transmission line. The device comprises a chuck and an adjusting oil cylinder connected with the chuck, and the adjusting oil cylinder comprises a communicated double-cavity cylinder body with the big front portion and the small rear portion. A front cavity is a voltage reduction cavity, the head of the front cavity is connected with an oil cylinder sleeve, and a piston rod penetrating through the oil cylinder sleeve and can automatically rebound is arranged inside the cavity body of the front cavity. A rear cavity is a direct voltage cavity, and the rear end of a piston inside the rear cavity is connected with an adjusting lead screw penetrating through the wall of the cavity body of the rear cavity. Before the device is used, the direct voltage cavity is filled with hydraulic oil, the adjusting lead screw pushes the piston to move forwards to extrude the hydraulic oil for primary voltage reduction, the hydraulic oil pushes the piston rod to move forwards for secondary voltage reduction, and an upper locating block at the outer end of the piston rod pushes a movable snap ring of each spacer line chuck to move forwards until the movable snap ring goes over an installation hole of a cotter-pin on the corresponding line chuck and clamps each split wire through the cotter-pin. The structure is simple, operation is convenient, labor is saved, an externally connected power source is not needed, and the device is light and convenient to carry, can adapt to replacement of multiple split wire spacers of different voltage grades, and has the universality.
Description
Technical field
The present invention relates to the use instrument on a kind of transmission line, being specifically related to a kind of fexible unit for changing conductor spacer in UHV transmission line.
Background technology
The transmission line of current 500kV generally adopts quadripartion or six-multiple conductor, and voltage adopts six-eight division or more polytomic wires higher than the ultra high-tension transmission line of 500kV.In order to ensure that bundle conductor wire harness spacing remains unchanged to meet electric property, ensureing through-current capability, thus separated by a distance in span conductor spacer being installed.Installation interval rod also can play certain inhibitory action to the vibration of wire and aeolian vibration.But change at present conductor spacer there is complex structure in spanner, the large heaviness of volume carries inconvenience, waste time and energy, due to regulating handle length, inconvenient operation, the slow-footed defect of replacing.For different bundle conductors also exist can not be general defect.
Summary of the invention
The object of the present invention is to provide a kind of structure simply without the need to external connection power source, the short convenient and strength-saving fexible unit of operating grip to change the conductor spacer in UHV transmission line.
This device for changing conductor spacer in UHV transmission line disclosed by the invention, the adjustment oil cylinder comprising chuck He be attached thereto.The cylinder body of described adjustment oil cylinder is the two-chamber cylinder body of pre-large post-small connection, front cavity is relief chamber, its head is connected with in oil cylinder cover, cavity that have can the piston rod of automatic rebounding through oil cylinder cover, and rear chamber is vertical compression chamber, and the piston rear end in it is connected with the adjustment screw mandrel through vertical compression cavity wall.
Described chuck is C-type clamp head, and its one end is connected with described adjustment oil cylinder, and the other end has the lower locating piece be connected with oval groove on conductor spacer; The rearward end external diameter of described piston rod is greater than its shaft external diameter, and the outer wall of rearward end has the groove of annular, and in groove, filling has sealing ring; The shaft of described piston rod is connected with stage clip, upper locating piece that front end is threaded connection coaxial line with it.
The vertical sectional shape of described upper locating piece is convex, and it is connected to the front end of described piston rod shaft outwardly with smaller diameter end.
The vertical sectional shape of described oil cylinder cover is T-shaped, its axial centre has T-shaped through hole, head hole wall has internal thread, steam vent is arranged at bottom, hole, bar portion have for installing concave ring groove in described stage clip by head end, the outer wall in bar portion has been threaded connection Adjusting bolt Adjusting screw, and the outer wall of Adjusting bolt Adjusting screw is connected with described C-type clamp head by screw thread.
The outer wall head of described adjustment oil cylinder relief chamber has the external screw thread overlapping head internal thread with described oil cylinder and mate, and is threaded connection between the two.
The sidewall of described adjustment oil cylinder relief chamber, the cavity transition of vertical compression chamber has oil filler point, and the outer end of oil filler point has for hexagonal awl-end screw in the sealing ring of shutoff and press seal circle.
The sidewall of described piston has annular groove, and wherein filling has sealing ring.
The length in described adjustment oil cylinder vertical compression chamber is greater than the length of relief chamber, and the outer end inner wall in vertical compression chamber has the limited impression making described piston limit.
The outer end of described adjustment screw mandrel is connected with regulating handle.
This practicality fills antiwear hydraulic oil by regulating the oil filler point on oil cylinder body wall in vertical compression chamber, is discharged by the air in relief chamber simultaneously.Piston-advance squeezed fluid force feed is promoted by regulating screw mandrel, hydraulic oil promotes piston rod and advances, the movable snap ring that the upper locating piece of piston rod outer end promotes wire clamp of conductor spacer head advances, and the installing hole place that movable snap ring crosses closed pin on wire clamp head the most at last clamps each bundle conductor by closed pin.Piston rod and piston respectively by sealing ring with regulate the relief chamber of oil cylinder, vertical compression chamber seals.Operating personnel only need rotate and regulate screw mandrel can realize the automatic advance of piston rod, and are less than the cross section of relief chamber due to the cross section in vertical compression chamber, so the length in vertical compression chamber is greater than the length of relief chamber, namely regulate the stroke of screw mandrel longer.So this device to have structure simple, easy to operate also without the need to external connection power source, weight greatly alleviates and is easy to carry, and the multiple fission conductor conductor spacer that can be adapted to different electric pressure is changed, and possesses versatility.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
As shown in Figure 1, this general utility tool for changing conductor spacer in UHV transmission line disclosed by the invention, comprises and regulates oil cylinder 1, oil cylinder cover 2, piston rod 3, stage clip 4, upper locating piece 5, Adjusting bolt Adjusting screw 6, piston 7, regulates screw mandrel 8, regulating handle 9 and C-type clamp 10.
The cylinder body of adjustment oil cylinder 1 is the two-chamber cylinder body of pre-large post-small connection, and its front cavity is relief chamber, and its outer wall head has external screw thread.The vertical sectional shape of oil cylinder cover 2 is T-shaped, and its axial centre has T-shaped through hole, and head hole wall has internal thread, and steam vent 13 is arranged at bottom.Oil cylinder cover 2 is threaded connection the outer wall in regulating oil cylinder 1 relief chamber.Stage clip 4 is connected to the outer wall of piston rod 3, and the end of piston rod 3 is positioned at the relief chamber regulating oil cylinder 1, and its shaft is threaded connection locating piece 5 through outer end after oil cylinder cover 2.Oil cylinder overlaps having for installing concave ring groove in stage clip 4 by head end of 2 holes, bar portion.The outer wall that oil cylinder overlaps 2 bar portions is threaded connection Adjusting bolt Adjusting screw 6, and the outer wall of Adjusting bolt Adjusting screw 6 is connected by the inner of screw thread and C-type clamp 10.Regulate oil cylinder 1 relief chamber, the sidewall of vertical compression chamber transition has oil filler point, the outer end of oil filler point has for hexagonal awl-end screw 11 in the sealing ring of shutoff and press seal circle.Regulate piston 7 sidewall in vertical compression chamber, oil cylinder 1 rear end to have annular groove, in annular groove, filling has sealing ring.Regulate the inner of screw mandrel 8 to be connected with piston 7, outer end is connected with regulating handle 9 through after vertical compression cavity wall.Piston rod 3 and piston 7 respectively by sealing ring with regulate the relief chamber of oil cylinder 1, vertical compression chamber seals.The outer end of C-type clamp 10 is connected with the lower locating piece 12 with oval groove on conductor spacer.
Conductor spacer is by the wire clamp head that some on it and corresponding bundle conductor position is corresponding, each wire is fixing.When changing conductor spacer, generally first new conductor spacer is installed, older conductor spacer is dismantled.When new conductor spacer is installed, first the closed pin at each for conductor spacer wire clamp head place is taken off, open the movable snap ring of each wire clamp head, each wire clamp head is suspended on corresponding each bundle conductor, then utilize the present invention successively movable snap ring to be pushed back original place, closed pin is plugged again.Specific operation process is as follows: make the lower locating piece 12 of C-type clamp 10 outer end snap in the oval groove of wire clamp head fixation side, movable snap ring is made to encase wire, the upper locating piece 5 of piston rod outer end is snapped in the circular hole of corresponding oval groove on movable snap ring, then by rotate regulating handle make adjustment screw mandrel 8 promote piston 7 advance squeezed fluid force feed carry out first time reduce pressure, hydraulic oil promotes piston rod 3 and carries out second time decompression, make locating piece 5 toward pressing down movable snap ring, until the end of movable snap ring crosses the installing hole place of closed pin in wire clamp head fixation side, insert closed pin locking movable snap ring.Install reverse rotation regulating handle after closed pin, piston 7 is return, and piston rod 3 is return under the restoring force effect of stage clip 4.
When dismantling old conductor spacer, because wire clamp head is in stress, its movable snap ring is pushed down by closed pin, so should first press down past for movable snap ring during dismounting, makes it depart from closed pin, is then extracted by closed pin.The same aforementioned process of the process that presses down of movable snap ring.
The present invention is especially applicable to the replacing of conductor spacer on 500KV to 1000KV transmission line.
Claims (9)
1. one kind for changing the device of conductor spacer in UHV transmission line, the adjustment oil cylinder comprising chuck and be attached thereto, it is characterized in that: the cylinder body of described adjustment oil cylinder is the two-chamber cylinder body of pre-large post-small connection, front cavity is relief chamber, its head is connected with in oil cylinder cover, cavity that have can the piston rod of automatic rebounding through oil cylinder cover, rear chamber is vertical compression chamber, and the piston rear end in it is connected with the adjustment screw mandrel through this cavity wall.
2. as claimed in claim 1 for changing the device of conductor spacer in UHV transmission line, it is characterized in that: described chuck is C-type clamp head, its one end is connected with described adjustment oil cylinder, and the other end has the lower locating piece be connected with oval groove on conductor spacer; The rearward end external diameter of described piston rod is greater than its shaft external diameter, and the outer wall of rearward end has the groove of annular, and in groove, filling has sealing ring; The shaft of described piston rod is connected with stage clip, upper locating piece that front end is threaded connection coaxial line with it.
3. as claimed in claim 2 for changing the device of conductor spacer in UHV transmission line, it is characterized in that: the vertical sectional shape of described upper locating piece is convex, and it is connected to the front end of described piston rod shaft outwardly with smaller diameter end.
4. as claimed in claim 2 for changing the device of conductor spacer in UHV transmission line, it is characterized in that: the vertical sectional shape of described oil cylinder cover is T-shaped, its axial centre has T-shaped through hole, head hole wall has internal thread, steam vent is arranged at bottom, having for installing concave ring groove in described stage clip by head end of hole, bar portion, the outer wall in bar portion has been threaded connection Adjusting bolt Adjusting screw, and the outer wall of Adjusting bolt Adjusting screw is connected with described C-type clamp head by screw thread.
5. as claimed in claim 4 for changing the device of conductor spacer in UHV transmission line, it is characterized in that: the outer wall head of described adjustment oil cylinder relief chamber has the external screw thread overlapping head internal thread with described oil cylinder and mate, and is threaded connection between the two.
6. as claimed in claim 1 for changing the device of conductor spacer in UHV transmission line, it is characterized in that: the sidewall of described adjustment oil cylinder relief chamber, the cavity transition of vertical compression chamber has oil filler point, the outer end of oil filler point has for hexagonal awl-end screw in the sealing ring of shutoff and press seal circle.
7. as claimed in claim 1 for changing the device of conductor spacer in UHV transmission line, it is characterized in that: the sidewall of described piston has annular groove, wherein filling has sealing ring.
8. as claimed in claim 7 for changing the device of conductor spacer in UHV transmission line, it is characterized in that: the length in described adjustment oil cylinder vertical compression chamber is greater than the length of relief chamber, and the outer end inner wall in vertical compression chamber has the limited impression making described piston limit.
9. as claimed in claim 1 for changing the device of conductor spacer in UHV transmission line, it is characterized in that: the outer end of described adjustment screw mandrel is connected with regulating handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410315647.3A CN104037666B (en) | 2014-07-04 | 2014-07-04 | Device used for replacing spacers on ultra-high voltage transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410315647.3A CN104037666B (en) | 2014-07-04 | 2014-07-04 | Device used for replacing spacers on ultra-high voltage transmission line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104037666A CN104037666A (en) | 2014-09-10 |
| CN104037666B true CN104037666B (en) | 2015-06-24 |
Family
ID=51468335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410315647.3A Active CN104037666B (en) | 2014-07-04 | 2014-07-04 | Device used for replacing spacers on ultra-high voltage transmission line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104037666B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110712174A (en) * | 2018-07-13 | 2020-01-21 | 中国石油天然气股份有限公司 | Movable pressure clamp |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108321721A (en) * | 2017-01-03 | 2018-07-24 | 朱以强 | A kind of replacement auxiliary device for conductor spacer on UHV transmission line |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201797262U (en) * | 2010-06-18 | 2011-04-13 | 湖北省超能超高压电力科技开发有限公司 | Special tool for replacing spacers |
| CN102820628A (en) * | 2012-08-28 | 2012-12-12 | 邯郸供电公司 | Special tool for replacing split conductor spacer rod |
| CN202856244U (en) * | 2012-10-16 | 2013-04-03 | 江苏省电力公司常州供电公司 | Hydraulic device used for insulator replacement tool |
| CN203014279U (en) * | 2012-12-10 | 2013-06-19 | 上海中瑞通用航空有限公司 | Special-purpose tool for replacing spacing rod during helicopter live-line work process |
| CN203632084U (en) * | 2013-11-18 | 2014-06-04 | 国网湖南省电力公司带电作业中心 | Spanner for replacing a 500kV line spacer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0326634Y2 (en) * | 1986-03-28 | 1991-06-10 |
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2014
- 2014-07-04 CN CN201410315647.3A patent/CN104037666B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201797262U (en) * | 2010-06-18 | 2011-04-13 | 湖北省超能超高压电力科技开发有限公司 | Special tool for replacing spacers |
| CN102820628A (en) * | 2012-08-28 | 2012-12-12 | 邯郸供电公司 | Special tool for replacing split conductor spacer rod |
| CN202856244U (en) * | 2012-10-16 | 2013-04-03 | 江苏省电力公司常州供电公司 | Hydraulic device used for insulator replacement tool |
| CN203014279U (en) * | 2012-12-10 | 2013-06-19 | 上海中瑞通用航空有限公司 | Special-purpose tool for replacing spacing rod during helicopter live-line work process |
| CN203632084U (en) * | 2013-11-18 | 2014-06-04 | 国网湖南省电力公司带电作业中心 | Spanner for replacing a 500kV line spacer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110712174A (en) * | 2018-07-13 | 2020-01-21 | 中国石油天然气股份有限公司 | Movable pressure clamp |
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| Publication number | Publication date |
|---|---|
| CN104037666A (en) | 2014-09-10 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Ren Chengxian Inventor after: Tong Cheng Inventor after: Zheng Kequan Inventor after: Lei Dongyun Inventor after: Gong Zhengxiong Inventor after: Li Hui Inventor after: Niu Jie Inventor after: Xiang Yun Inventor after: Zhen Chaohui Inventor after: Zhang Jianjun Inventor before: Ren Chengxian Inventor before: Zheng Kequan Inventor before: Lei Dongyun Inventor before: Li Hui Inventor before: Niu Jie Inventor before: Xiang Yun Inventor before: Mei Wenjian Inventor before: Zhang Jianjun Inventor before: Tong Cheng |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: REN CHENGXIAN ZHENG KEQUAN LEI DONGYUN LI HUI NIU JIE XIANG YUN MEI WENJIAN ZHANG JIANJUN TONG CHENG TO: REN CHENGXIAN ZHENG KEQUAN LEI DONGYUN GONG ZHENGXIONG LI HUI NIU JIE XIANG YUN ZHEN CHAOHUI ZHANG JIANJUN TONG CHENG |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |