CN208849347U - An anti-slip wire tensioner for replacing UHV insulators - Google Patents
An anti-slip wire tensioner for replacing UHV insulators Download PDFInfo
- Publication number
- CN208849347U CN208849347U CN201821907050.8U CN201821907050U CN208849347U CN 208849347 U CN208849347 U CN 208849347U CN 201821907050 U CN201821907050 U CN 201821907050U CN 208849347 U CN208849347 U CN 208849347U
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- Prior art keywords
- plate
- joint
- lead screw
- hydraulic cylinder
- replacing
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- 239000012212 insulator Substances 0.000 title claims abstract description 39
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 13
- 230000005540 biological transmission Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 208000025274 Lightning injury Diseases 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012211 strain insulator Substances 0.000 description 1
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- Insulators (AREA)
Abstract
The utility model discloses a kind of antiskid cord holders for replacing extra-high voltage insulator, including two spaced closed fixtures, the cord holder there are two adjustable in length is connected between two closed fixtures, cord holder includes hydraulic cylinder, piston rod in hydraulic cylinder stretches out the both ends of hydraulic cylinder, the first mechanical lead screw is connected in the threaded one end of piston rod, the second mechanical lead screw is threaded in the other end of piston rod, first mechanical lead screw is connect with closed fixture, the connecting plate connecting with closed fixture is equipped in one end of hydraulic cylinder, connecting plate includes two side plates, pass through end plate connection between two side plates, jam plate is connected between two side plates, through-hole is offered on jam plate, second mechanical lead screw penetrates in the through-hole of jam plate, nut is combined on the second mechanical lead screw, nut is between end plate and jam plate.The utility model, to the load of hydraulic cylinder, solves the problems, such as that hydraulic cylinder slides at elevated pressures, holds and press the time short using the second mechanical lead screw transfer insulator chain.
Description
Technical field
The utility model relates to ultra-high-tension power transmission line service kit technical fields, and in particular to a kind of replacement extra-high voltage insulation
The antiskid cord holder of son.
Background technique
Currently, having gone up by the global energy internet of bulk transmission grid of extra-high voltage grid as national strategy, extra-high crimping
The safe and stable operation on road is the core work of power grid O&M, and running extra-high voltage insulator is by conducting wire self weight, wind-force, ice
The factors influences such as the mechanical load of the variations such as snow, environment temperature, and lightning stroke, attachment dunghill, external force destruction will damage,
Influence line security stable operation.Extra-high voltage would become hard to power failure operation once running, and carry out charged for replacement extra-high voltage insulator
As the necessary means for ensureing UHV transmission line safe and stable operation.
Because environment locating for UHV transmission line is more severe, glass insulator is in the field of force and is formed by with electromagnetic field
It in coupled field, is easier to reveal, needs to be replaced in time.Replacement extra-high voltage strain insulator monolithic insulator is all made of at present
Hydraulic screw rod connects fixture as cord holder, both ends, completes insulator load transfer.But the pressure time is held in hydraulic wire grip presence
It is short, easily occur under high-tensile strength piston rod sliding, sealing ring oil leak the problems such as, be unable to satisfy ultra-high-voltage large-tonnage replacing insulator
Requirement.
Utility model content
Technical problem to be solved in the utility model is that compression line device is short in the presence of the pressure time is held in the prior art, is drawn in height
The problems such as piston rod sliding, sealing ring oil leak easily occur under power, is unable to satisfy the requirement of ultra-high-voltage large-tonnage replacing insulator
Technical problem is, and it is an object of the present invention to provide a kind of antiskid cord holder for replacing extra-high voltage insulator.
The utility model is achieved through the following technical solutions:
A kind of antiskid cord holder for replacing extra-high voltage insulator, the enclosed including two spaced clamping insulators
Card connects the cord holder there are two adjustable in length between two closed fixtures, and the cord holder includes hydraulic cylinder, in hydraulic cylinder
Piston rod stretch out the both ends of hydraulic cylinder, the both ends of piston rod offer threaded hole respectively, connect in the threaded one end of piston rod
Have the first mechanical lead screw, be threaded with the second mechanical lead screw in the other end of piston rod, the described first mechanical lead screw with wherein
One closed fixture connection, the connecting plate connecting with another closed fixture is equipped in one end of hydraulic cylinder, and the connecting plate includes two
A side plate is connected with jam plate by end plate connection between two side plates between two side plates, and jam plate and end plate interval are arranged,
Through-hole is offered on the jam plate, the described second mechanical lead screw penetrates in the through-hole of jam plate, is combined on the second mechanical lead screw
Nut, the nut is between end plate and jam plate.
Preferred embodiment, the described first mechanical lead screw and one of closed fixture junction are equipped with the first connector, connect first
The second connector is hinged on head, and the end of second connector and closed fixture is hinged, is fixedly connected with first on the connecting plate
Connector is hinged with the second connector on first connector, and the end of second connector and another closed fixture is hinged.
Preferred embodiment, first connector includes bottom plate, the two sides of bottom plate be equipped with perpendicular connection left trunnion and
Right trunnion, second connector includes connecting plate, is equipped with left trunnion and right trunnion in parallel, connecting plate and the in the two sides of connecting plate
The left trunnion of one connector is connected with right trunnion by pivot pin, and the left trunnion and right trunnion of second connector pass through pivot pin and enclosed
The end of card connects.
Preferred embodiment, the closed fixture include pedestal and semi-annular cover plates, and the middle part of the pedestal is equipped with semi-ring connected in star,
One end of the semi-annular cover plates and semi-ring connected in star one end of pedestal are rotatably connected, the other end of the semi-annular cover plates with
The semi-ring connected in star other end of the pedestal is flexibly connected.
Preferred embodiment, the hydraulic cylinder are hydraulic hand-pump, and operation handle is equipped on hydraulic cylinder.
Preferred embodiment, bottom plate, left trunnion and the right trunnion of first connector are stainless steel material integrated formed structure, institute
The connecting plate, left trunnion and right trunnion for stating the second connector are stainless steel material integrated formed structure.
Preferred embodiment, the described first mechanical lead screw and the second mechanical lead screw chrome-faced.
Preferred embodiment, the nut are wing nut.
The utility model compared with prior art, has the following advantages and benefits: one kind of the utility model is more
The antiskid cord holder of extra-high voltage insulator is changed, the hydraulic cylinder of the antiskid cord holder tightens insulator chain, reduces broken
The pulling force for damaging insulator both ends, enables damaged insulator to take out from insulator chain.In use, two closed fixtures
It is clamped on the steel cap of the insulator of damaged insulator two sides, after the tightening of antiskid cord holder, tightens the second mechanical lead screw
Nut, hydraulic cylinder pressure relief, nut are fixed on the second mechanical lead screw on the connecting plate connecting with hydraulic cylinder, prevent in hydraulic cylinder
For piston rod by under external pulling force effect, piston rod slides damage hydraulic cylinder and sealing ring out of hydraulic cylinder.With the second machinery
Lead screw shifts insulator chain to the load of hydraulic cylinder, solves the problems, such as that hydraulic cylinder slides at elevated pressures, holds and press the time short.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand the utility model embodiment, constitutes the one of the application
Part does not constitute the restriction to the utility model embodiment.In the accompanying drawings:
FIG. 1 is a schematic structural view of the utility model.
Label and corresponding parts title in attached drawing:
1- pedestal, 2- semi-annular cover plates, 3- hydraulic cylinder, the first connector of 4-, the second connector of 5-, the mechanical lead screw of 6- first, 7-
Piston rod, the mechanical lead screw of 8- second, 9- side plate, 10- end plate, 11- jam plate, 12- nut.
Specific embodiment
For the purpose of this utility model, technical solution and advantage is more clearly understood, below with reference to embodiment and attached drawing,
The utility model is described in further detail, and the exemplary embodiment and its explanation of the utility model are only used for explaining this
Utility model is not intended to limit the scope of the present invention.
Embodiment
As shown in Figure 1, a kind of antiskid cord holder for replacing extra-high voltage insulator of the utility model, including two intervals are set
The closed fixture for the clamping insulator set, closed fixture include pedestal 1 and semi-annular cover plates 2, and it is recessed to be equipped with semi-circular at the middle part of pedestal 1
Slot is rotatably connected in one end of semi-annular cover plates 2 and semi-ring connected in star one end of pedestal 1, the other end of semi-annular cover plates 2 with
The semi-ring connected in star other end of pedestal 1 is flexibly connected using bolt, and when use opens semi-annular cover plates 2, two closed fixtures
It is clamped on the steel cap of the insulator of damaged insulator two sides.
The cord holder there are two adjustable in length is connected between two closed fixtures, cord holder includes hydraulic cylinder 3, hydraulic cylinder
Piston rod 7 in 3 stretches out the both ends of hydraulic cylinder 3, and hydraulic cylinder 3 is hydraulic hand-pump, and operation handle is equipped on hydraulic cylinder 3 and is returned
Oil valve.Threaded hole is offered respectively at the both ends of piston rod 7, is connected with the first mechanical lead screw 6 in the threaded one end of piston rod 7,
The second mechanical lead screw 8, the pedestal 1 of the first mechanical lead screw 6 and one of closed fixture are threaded in the other end of piston rod 7
Connection, the first mechanical lead screw 6 and the second 8 chrome-faced of mechanical lead screw, improve its surface smoothness and wearability.In hydraulic cylinder 3
One end be equipped with the connecting plate that connect with the pedestal 1 of another closed fixture, which includes two side plates 9, two side plates 9 it
Between connected by end plate 10, jam plate 11 is fixedly connected between two side plates 9, jam plate 11 and the interval of end plate 10 are arranged, are locking
Through-hole is offered on plate 11, the second mechanical lead screw 8 penetrates in the through-hole of jam plate 11, is combined with nut on the second mechanical lead screw 8
12, nut 12 is preferably wing nut, and nut 12 is between end plate 10 and jam plate 11.
Working principle
Semi-annular cover plates 2 are opened when use, two closed fixtures are clamped in respectively the insulator of damaged insulator two sides
Steel cap on, two cord holders are then connected between two closed fixtures, the first mechanical lead screw 6 on cord holder are adjusted, to anti-
Cord holder pre-tightening is slid, the operation handle on hydraulic cylinder 3 is then manually operated, the piston rod 7 in hydraulic cylinder 3 is along the second machinery
The reverse movement of lead screw 8 adjusts the distance between two closed fixtures by tensioning, stops after damaged insulator can be removed
Only, the nut 12 on the second mechanical lead screw 8 is then tightened, by the second mechanical lead screw 8 on hydraulic cylinder 3 and the company on hydraulic cylinder 3
Fishplate bar locks, and then opens oil return valve, 3 pressure release of hydraulic cylinder.Insulator chain is shifted to the lotus of hydraulic cylinder 3 with the second mechanical lead screw 8
It carries, solves the problems, such as that hydraulic cylinder 3 occurs sliding at elevated pressures, holds and press the time short.
Preferred embodiment scheme, the end and one of closed fixture junction of the first mechanical lead screw 6 are equipped with the first connector
4, the second connector 5 is hinged on the first connector 4,1 end of pedestal of second connector 5 and closed fixture is hinged.On connecting plate
It is fixedly connected with the first connector 4, the second connector 5, the pedestal 1 of the second connector 5 and another closed fixture are hinged on the first connector 4
End is hinged.
First connector 4 includes bottom plate, is equipped with the left trunnion and right trunnion of perpendicular connection in the two sides of bottom plate, second connects
First 5 include connecting plate, is equipped with left trunnion and right trunnion in parallel, the left trunnion of connecting plate and the first connector 4 in the two sides of connecting plate
It is connected with right trunnion by pivot pin.The left trunnion and right trunnion of second connector 5 are connected by the end of pivot pin and closed fixture pedestal 1
It connects.Bottom plate, left trunnion and the right trunnion of first connector 4 are stainless steel material integrated formed structure, the connecting plate of the second connector 5, a left side
Trunnion and right trunnion are stainless steel material integrated formed structure, improve its structural strength.
Above-described specific embodiment, to the purpose of this utility model, technical scheme and beneficial effects carried out into
One step is described in detail, it should be understood that being not used to limit the foregoing is merely specific embodiment of the present utility model
Determine the protection scope of the utility model, within the spirit and principle of the utility model, any modification for being made equally is replaced
It changes, improve, should be included within the scope of protection of this utility model.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821907050.8U CN208849347U (en) | 2018-11-19 | 2018-11-19 | An anti-slip wire tensioner for replacing UHV insulators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821907050.8U CN208849347U (en) | 2018-11-19 | 2018-11-19 | An anti-slip wire tensioner for replacing UHV insulators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208849347U true CN208849347U (en) | 2019-05-10 |
Family
ID=66376049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821907050.8U Active CN208849347U (en) | 2018-11-19 | 2018-11-19 | An anti-slip wire tensioner for replacing UHV insulators |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208849347U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110444355A (en) * | 2019-06-21 | 2019-11-12 | 国网江苏省电力有限公司泰州供电分公司 | One kind, which can pre-tighten, adjusts high security insulator deck |
| CN111430089A (en) * | 2020-01-21 | 2020-07-17 | 国网浙江省电力有限公司湖州供电公司 | Perpendicular two strain insulator string that hang some pair and hang and establish device |
| CN112338868A (en) * | 2020-11-11 | 2021-02-09 | 国家电网公司西南分部 | Electric lead screw locking mechanism |
| CN113315029A (en) * | 2021-05-27 | 2021-08-27 | 安徽工业大学 | Hanging insulator operation replacement tool bag |
-
2018
- 2018-11-19 CN CN201821907050.8U patent/CN208849347U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110444355A (en) * | 2019-06-21 | 2019-11-12 | 国网江苏省电力有限公司泰州供电分公司 | One kind, which can pre-tighten, adjusts high security insulator deck |
| CN111430089A (en) * | 2020-01-21 | 2020-07-17 | 国网浙江省电力有限公司湖州供电公司 | Perpendicular two strain insulator string that hang some pair and hang and establish device |
| CN111430089B (en) * | 2020-01-21 | 2021-11-09 | 国网浙江省电力有限公司湖州供电公司 | Perpendicular two strain insulator string that hang some pair and hang and establish device |
| CN112338868A (en) * | 2020-11-11 | 2021-02-09 | 国家电网公司西南分部 | Electric lead screw locking mechanism |
| CN113315029A (en) * | 2021-05-27 | 2021-08-27 | 安徽工业大学 | Hanging insulator operation replacement tool bag |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 610000 No. 66 Xinguang Road, hi tech Zone, Sichuan, Chengdu Patentee after: Super high voltage branch of State Grid Sichuan Electric Power Co. Address before: 610000 No. 66 Xinguang Road, hi tech Zone, Sichuan, Chengdu Patentee before: MAINTENANCE COMPANY OF STATE GRID SICHUAN ELECTRIC POWER Co. |
|
| CP01 | Change in the name or title of a patent holder |