CN208908324U - A kind of tightening clamp suitable for 500 kilovolts of compact transmission lines - Google Patents
A kind of tightening clamp suitable for 500 kilovolts of compact transmission lines Download PDFInfo
- Publication number
- CN208908324U CN208908324U CN201821941851.6U CN201821941851U CN208908324U CN 208908324 U CN208908324 U CN 208908324U CN 201821941851 U CN201821941851 U CN 201821941851U CN 208908324 U CN208908324 U CN 208908324U
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- China
- Prior art keywords
- arm
- cross
- connecting rod
- kilovolts
- pull rod
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 13
- 239000010959 steel Substances 0.000 claims abstract description 13
- 230000005611 electricity Effects 0.000 claims abstract description 7
- 210000005069 ears Anatomy 0.000 claims description 5
- 210000001364 upper extremity Anatomy 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000012212 insulator Substances 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
- 239000004020 conductor Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Abstract
The utility model discloses a kind of tightening clamps suitable for 500 kilovolts of compact transmission lines, are fixed on the cross-arm of transmission line of electricity, and cross-arm is spliced by two angle steel backrests.Fixture includes a pair of of cross-arm hanging part, cross-arm hanging part includes upper limit body, pull rod and connecting rod, there are two upper limit bodies, it is arranged in parallel perpendicular to cross-arm in the top of cross-arm, the upper end of pull rod is connect with upper limit body, and lower end is passed through from two angle steel of cross-arm, and the both ends of connecting rod are hinged with pull rod lower end respectively, pull rod and two connecting rods is set to form opening up U-shaped frame, the middle position of connecting rod has the hinged seat for adjusting screw rod for connecting stringing.Fixture installing without fastener without the structure for changing cross-arm on cross-arm, it is convenient and efficient.Connecting rod is parallel to cross-arm arrangement, and stringing adjusts the upper end of screw rod and the hinged seat of connecting rod connects, so vertically occupying little space.After fixture installs, operator can conscientious stringing operation, safety when raising operates directly on cross-arm.
Description
Technical field
The utility model relates to a kind of transmission lines of electricity, and in particular to a kind of suitable for 500 kilovolts of compact transmission lines
Tightening clamp.
Background technique
With the continuous social and economic development with the increasingly raising of living standards of the people, the demand to electric power also constantly increases
It is long, in order to meet the needs of long distance powedr transmission, it is badly in need of developing super, extra-high voltage grid.
It is the transmission of electricity pattern of " two hand over two straight " extra-high voltage of advocating peace that China, which has been formed with super-pressure rack, at present.At the same time,
To 500kV route, single loop width of corridor is 55~60m, and the sum of two single loops can reach 110~120m, above-mentioned numerical value
Size and arrangement of conductor, the design conditions such as tower-shaped and span are related.So if using common-tower double-return replace two single time,
Width of corridor can reduce half, and if come setting up ultra-high-voltage route in the form of compact multiple-loop line, it will more
The cost of investment for reducing line corridor, for soil valuableness, corridor area in short supply undoubtedly has apparent economic benefit and society
Meeting benefit, this will become the trend that 500kV backbone network in China sets up development.
Three-phase conducting wire is placed in corresponding tower window by 500kV compact-type transmission line technology, and is taken between three-phase conducting wire equilateral
The arrangement mode of inverted triangle more efficiently increases the phase conductor division radical of transmission line of electricity, and can be with exquisiter
Mode the phase conductor of transmission line of electricity is arranged and is arranged.
Compact line three-phase symmetrical in theory, parameter be it is full decoupled, without replacing.This is also saved
It saves the expense of construction, reduce the difficulty of construction.Three-phase conducting wire, which all passes through six line yoke plates, to be fixed, and the suspension of V-arrangement insulator chain makes
Position of the conducting wire in tower window is fixed, and is not swung because of wind-force or electric power.
Due to the above-mentioned arrangement of 500 kilovolts of compact line three-phase conducting wires and insulator chain, so that being replaced on the route exhausted
The tool of edge substring cannot occupy biggish space, so the tool of replacement common line insulator chain is not suitable for 500 kilovolts
Compact line.
Utility model content
The purpose of this utility model is that a kind of installation is simple, safe operation and what is occupied little space be suitable for 500 kilovolts
The tightening clamp of compact transmission line.
This tightening clamp for being suitable for 500 kilovolts of compact transmission lines provided by the utility model, is fixed on transmission of electricity
On the cross-arm of route, cross-arm is spliced by two angle steel backrests.The fixture includes a pair of of cross-arm hanging part, and cross-arm hanging part includes
Upper limit body, pull rod and connecting rod, there are two upper limit bodies, perpendicular to cross-arm parallel arrangement in the top of cross-arm, pull rod it is upper
End is connect with upper limit body, and lower end is passed through from two angle steel of cross-arm, and the both ends of connecting rod are hinged with pull rod lower end respectively, makes pull rod
Opening up U-shaped frame is formed with two connecting rods, the middle position of connecting rod, which has, adjusts the hinged of screw rod for connecting stringing
Seat.
The shape of the upper limit body is downward opening U-shaped body, and closed end is located at outside the upper limb of cross-arm, both ends
Side arm is located at cross-arm outside the side arm of vertical plane.
The both ends of the connecting rod are symmetrically connected with two groups of grip blocks, and every group of grip block includes two pieces perpendicular to connecting rod
Plate body.
The lower end of the pull rod is inserted between the two boards body of every group of grip block, is laterally cut with scissors by the pin shaft with split pin
It connects.
The hinged seat is ears seat, is connected with the hinging pin shaft with split pin thereon.
The upper limit body of this fixture is installed on cross-arm, and pull rod is passed through between two angle steel of cross-arm, does not have to fastener
It is quick and easy for installation without changing the structure of cross-arm.The pull rod lower end of two upper limit bodies connection is articulated as one by connecting rod.
The structure of this fixture keeps entire fixture manufacture selection source wide, and metal plate or pipe can be used, or even other productions of manufacture can be used
The clout of product, economizes on resources.Pull rod stretches out in cross-arm angle steel lower edge can be hinged with connecting rod, and connecting rod is parallel to cross-arm cloth
It sets, hinged seat is set in connecting rod, the upper end that stringing adjusts screw rod is articulated on this fixture by ears seat.So this fixture
It is vertical occupy little space, and after fixture installs, operator can the conscientious stringing operation directly on cross-arm, improve operation
When safety, so this fixture is particularly suitable for use when 500 kilovolts of compact lines replacement insulator chain.
Detailed description of the invention
Fig. 1 is the schematic view of the front view of the utility model one embodiment use state.
Fig. 2 is the schematic side view of Fig. 1.
Specific embodiment
As shown in Figure 1, this tightening clamp for being suitable for 500 kilovolts of compact transmission lines disclosed in the present embodiment, packet
Include upper limit body 1, pull rod 2 and connecting rod 3.
The shape of upper limit body 1 is downward opening U-shaped body, and metal plate or square tube production can be used.
There are two upper limit bodies 1, the vertical connecting rod 2 of middle position of each 1 closed end of limit body.
The both ends of connecting rod 3 are symmetrically welded with two groups of grip blocks, and every group of grip block includes the plate body 21 of two pieces of parallel arrangements.
The lower end of two pull rods 2 is inserted into respectively between the two boards body 21 of every group of grip block, and the pin with split pin is then passed through
Axis XZ is hinged, and two pull rods 2 is made to form opening up U-shaped frame with connecting rod 3.
The middle position of connecting rod 3 is connected with the hinged seat 4 that screw rod is adjusted for connecting stringing, and hinged seat 4 is ears
, the pin shaft XZ with split pin is connected on two pieces of otic placodes.
Pull rod 2 and connecting rod 3 are made of metal side tube.
This fixture when being installed on cross-arm 5, upper limit body 1 with closed end upward, opening down arrangement, pull rod 2 is from cross-arm 5
Two angle steel pass through between back arms, and the downside of upper limit body closed end is contacted with the upper limb of cross-arm angle steel, 1 both ends of upper limit body
Side arm be located at cross-arm angle steel lean on back arms outside, such upper limit body 1 i.e. be mounted by cross-arm angle steel after not
It can be fallen from cross-arm 5.Then the lower end of two pull rods 2 is inserted into respectively between the two boards body 21 of 3 both ends grip block of connecting rod,
It is hinged by the pin shaft XZ with split pin again.
So far installation of this fixture on cross-arm has been completed, and the aperture on cross-arm had both been not required in installation process, has also been not required to
Other fasteners are wanted, it is convenient and efficient.
After this fixture installs on cross-arm 5, cut with scissors by the upper end of hinged seat 4 and stringing adjusting screw rod 6 in connecting rod 3
It connects, the lower end that stringing adjusts screw rod is connect with side of wire fixture, can start the operation of stringing load transfer.
The above structure of this fixture keeps entire fixture manufacture selection source wide, metal plate or pipe can be used, or even can adopt
With the clout for manufacturing other products, economize on resources.Pull rod stretches out in cross-arm angle steel lower edge can be hinged with connecting rod, and connecting rod is flat
Row is arranged in cross-arm, and hinged seat is arranged in connecting rod, and the upper end that stringing adjusts screw rod is articulated on this fixture by ears seat.
So operator can grasp conscientious stringing directly on cross-arm after the vertical of this fixture occupies little space, and fixture installs
Make, improve safety when operation, so this fixture is particularly suitable for making when 500 kilovolts of compact line replacement insulator chains
With.
Claims (5)
1. a kind of tightening clamp suitable for 500 kilovolts of compact transmission lines, is fixed on the cross-arm of transmission line of electricity, cross-arm by
Two angle steel backrests are spliced, it is characterised in that: the fixture includes a pair of of cross-arm hanging part, and cross-arm hanging part includes upper limit
Body, pull rod and connecting rod, there are two upper limit bodies, perpendicular to cross-arm parallel arrangement in the top of cross-arm, the upper end of pull rod with it is upper
Limit body connection, lower end are passed through from two angle steel of cross-arm, and the both ends of connecting rod are hinged with pull rod lower end respectively, connect pull rod and two
Extension bar forms opening up U-shaped frame, and the middle position of connecting rod has the hinged seat that screw rod is adjusted for connecting stringing.
2. being suitable for the tightening clamp of 500 kilovolts of compact transmission lines as described in claim 1, it is characterised in that: described
The shape of upper limit body is downward opening U-shaped body, and closed end is located at outside the upper limb of cross-arm, and the side arm at both ends is located at cross-arm
Outside the side arm of vertical plane.
3. being suitable for the tightening clamp of 500 kilovolts of compact transmission lines as described in claim 1, it is characterised in that: described
The both ends of connecting rod are symmetrically connected with two groups of grip blocks, and every group of grip block includes the two boards body perpendicular to connecting rod.
4. being suitable for the tightening clamp of 500 kilovolts of compact transmission lines as claimed in claim 3, it is characterised in that: described
The lower end of pull rod is inserted between the two boards body of every group of grip block, is laterally hinged with by the pin shaft with split pin.
5. being suitable for the tightening clamp of 500 kilovolts of compact transmission lines as described in claim 1, it is characterised in that: described
Hinged seat is ears seat, is connected with the hinging pin shaft with split pin thereon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821941851.6U CN208908324U (en) | 2018-11-23 | 2018-11-23 | A kind of tightening clamp suitable for 500 kilovolts of compact transmission lines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821941851.6U CN208908324U (en) | 2018-11-23 | 2018-11-23 | A kind of tightening clamp suitable for 500 kilovolts of compact transmission lines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208908324U true CN208908324U (en) | 2019-05-28 |
Family
ID=66614957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821941851.6U Active CN208908324U (en) | 2018-11-23 | 2018-11-23 | A kind of tightening clamp suitable for 500 kilovolts of compact transmission lines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208908324U (en) |
-
2018
- 2018-11-23 CN CN201821941851.6U patent/CN208908324U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |