CN207245308U - A kind of 500kV transmission line of alternation currents straight line height is across tower - Google Patents
A kind of 500kV transmission line of alternation currents straight line height is across tower Download PDFInfo
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- CN207245308U CN207245308U CN201720708621.4U CN201720708621U CN207245308U CN 207245308 U CN207245308 U CN 207245308U CN 201720708621 U CN201720708621 U CN 201720708621U CN 207245308 U CN207245308 U CN 207245308U
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Abstract
A kind of 500kV transmission line of alternation currents straight line height is across tower, crossbeam including being connected to tower body top with lower bent lever support by above cranking arm, the both ends of crossbeam are connected with the conducting wire cross-arm for hanging two-phase transmission pressure, and the top of crossbeam is equipped with the earth wire support for being used for hanging ground wire；On crank arm one phase transmission pressure of upper suspension, conducting wire cross-arm and above crank arm and be equipped with conducting wire hanging point；Ground wire hanging point is provided with earth wire support, ground wire hanging point and conducting wire hanging point are hanging plate type hanging point；On crank arm and be composed with lower bent lever by two parts pyramidal structure, the top of lower bent lever and tower body connects and two parts pyramidal structure expands outwardly, on crank arm it is opposite with the pyramidal structure tip of lower bent lever connection, on crank arm and be arranged on the surface of lower bent lever, the termination of earth wire support is beak type, and the cross-arm termination of conducting wire cross-arm is pointed；The bottom of tower body is provided with tower leg, and tower leg is made of two different supporting legs of length.The stress performance of the utility model is preferable, can overcome the limitation of alpine terrain.
Description
Technical field
It the utility model is related to a kind of high voltage iron tower, and in particular to a kind of 500kV transmission line of alternation currents straight line height is across tower.
Background technology
Pylon can carry out power circuit aerial and play the role of being effectively protected, the design of pylon, manufacture, installation,
Safeguard and quality testing is modern power systems operation and the important step developed.Pylon is generally divided into tangent tower and corner
Tower, although the application of complete unequel leg extension tangent tower is more at present, technology is more mature, height between existing unequal leg
Difference is small, it is difficult to meet the mountain terrain of nearly tens meters of height difference, especially in the larger mountain area of the gradient, traditional unequal leg steel tower
Often with actually differing greatly, construction is difficult to application conditions.Therefore, it is badly in need of studying new tower leg pattern, original
Tower leg structure upper increases K-type internode so that the height difference span increase of unequal leg, to meet the practice of construction in the dangerously steep mountain area of landform
It is required that.
Utility model content
The purpose of this utility model is that it is directed to above-mentioned the problems of the prior art, there is provided a kind of 500kV AC power lines
For road straight line height across tower, the stress performance of the tower is preferable, can overcome the limitation of alpine terrain, builds simply, construction cost is low.
To achieve these goals, the technical solution adopted in the utility model is：
Crossbeam including being connected to tower body top with lower bent lever support by above cranking arm, the both ends of crossbeam are connected with for hanging
The conducting wire cross-arm of two-phase transmission pressure is hung, the earth wire support for hanging ground wire is provided with above crossbeam；Crank arm on described
One phase transmission pressure of upper suspension, conducting wire cross-arm are equipped with conducting wire hanging point with above cranking arm；Ground wire hanging point, ground are provided with earth wire support
Line hanging point and conducting wire hanging point are hanging plate type hanging point；Crank arm on described with lower bent lever by two parts pyramidal structure combination and
Into the top of lower bent lever and tower body connects and two parts pyramidal structure expands outwardly, and above cranks arm and the pyramidal structure of lower bent lever is sharp
The opposite connection in end, above cranks arm and is arranged on the surface of lower bent lever, crossbeam is connected with the pyramidal structure afterbody above cranked arm；Earth wire support
Termination be beak type, the lower plane of beak part is trapezoidal, and ground wire hanging point is arranged on the lower plane of beak part, and conducting wire is horizontal
The cross-arm termination of load is pointed；The bottom of the tower body is provided with tower leg, and tower leg is made of two different supporting legs of length.
The lower plane outermost end mouth width of the earth wire support is 0.6m；The bottom shape of conducting wire cross-arm is rectangle, its mouth width
For 1.6m；On width at the tip being connected between lower bent lever of cranking arm be 14.2m.
The ground wire hanging point be symmetricly set on the end of earth wire support away from tower body central axes 15.05m at；Conducting wire hanging point is symmetrical
It is arranged on away from the 17.04m of tower body central axes；On the crank arm conducting wire hanging point on top be symmetricly set on away from the 5.97m of tower body central axes.
The floor projection length of the earth wire support is 6.5m, and vertical direction is highly 4.5m；The length of the conducting wire cross-arm
Spend for 8.5m, conducting wire cross-arm and the root of crossbeam junction are highly 2.9m；The overall length of the crossbeam is 17.1m, and crossbeam exists
Height is 1m at central axes, and crossbeam and junction width of above cranking arm are 2.8m.
The end angle of the earth wire support is 45 °；The cross-arm termination angle of conducting wire cross-arm is 18.2 °.
Interlamellar spacing between the top of the earth wire support and conducting wire cross-arm is 7.3m, conducting wire cross-arm and junction of cranking arm
Interlamellar spacing be 7.5m, at the top of crank arm junction and tower body between interlamellar spacing be 11.0m.
In two supporting legs for forming tower leg, extending bracket is provided with long tower leg, and the minimum length of short tower leg is 8m, it is long
The maximum length of tower leg is 33m, and the maximum length difference of two supporting legs is 25m.
Tower body is made of Q420 steel, transmission pressure using duplex gold utensil and conducting wire cross-arm and on crank arm and be connected.
Compared with prior art, the utility model has following beneficial effect：Form tower leg supporting leg can select 8m,
11m, 24m, 33m highly differ bigger four groups and connect leg, and half root of most long leg opens control in 10.34m, disclosure satisfy that several
The requirement of tower alpine terrain can not be stood, being smoothed out for line project is ensure that, avoids work of relocating, can effectively shorten work
The journey duration.By above cranking arm and lower bent lever supports connecting cross beam, it is defeated that the both ends of crossbeam are connected to suspension two-phase on the top of tower body
The conducting wire cross-arm of electric lead, the earth wire support for hanging ground wire is provided with above crossbeam, upper suspension one phase transmission of electricity of above cranking arm
Conducting wire, conducting wire cross-arm are equipped with conducting wire hanging point with above cranking arm, and reasonable structural arrangement, power transmission is clear and definite, have ensured the safety fortune of engineering
OK.In addition, the termination of the utility model earth wire support is beak type, the lower plane of beak part is trapezoidal, and ground wire hanging point is set
On the lower plane of beak part, ground wire hanging point and conducting wire hanging point are hanging plate type hanging point, avoid welding job, effective to add
The strong stress performance of hanging point, meets the requirements such as hanging wire node strength, easy for construction, reduces tower weight.
Brief description of the drawings
The overall structure diagram of Fig. 1 the utility model；
The short tower leg structure diagram of Fig. 2 the utility model；
In attached drawing：1- crossbeams；2- earth wire supports；3- conducting wire cross-arms；Crank arm on 4-；5- lower bent levers；6- junctions；7- towers
Body；8- tower legs；The short tower legs of 9-.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
Referring to Fig. 1-2, the utility model includes crossbeam 1 in structure, is symmetricly set on above crossbeam 1 for hanging ground wire
Earth wire support 2, be symmetricly set on the conducting wire cross-arm 3 that the left and right sides of crossbeam 1 is used to hang two-phase transmission pressure.
Earth wire support 2, conducting wire cross-arm 3 are connected with crossbeam 1.Conducting wire cross-arm 3 includes Liang Ge branches and Liang Ge branches point
The left and right sides of crossbeam 1 is not symmetricly set on.Crossbeam 1 is symmetrically distributed at left and right sides of the central axes of tower body 7, the axis of tower body 7
Height is 1.0m at line, and the height with earth wire support 2,3 junction of conducting wire cross-arm is 2.8m, overall length 17.1m.
Earth wire support 2 is symmetrically arranged at 1 top of crossbeam, its end shape is beak type, and the lower plane of beak part is
Trapezoidal, its top mouth width is 0.7m, and end mouth width is 0.6m.Ground wire hanging point be symmetricly set on 2 beak lower plane of earth wire support away from
At the 15.05m of tower body central axes, earth wire support 2 is used to hang ground wire, and ground wire plays a protective role twice conducting wires.
Conducting wire cross-arm 3 includes Liang Ge branches, is respectively rectangle positioned at the left and right sides of crossbeam 1, its bottom shape, mouth width is
1.6m, and to tower head the right and left horizontal stretching and keep symmetrical.Conducting wire cross-arm 3 is used to hang two-phase transmission pressure, and meets
Electric clearance requirement.The length of conducting wire cross-arm 3 is 8.5m, and hanging point is apart from tower body center 17.04m.
On crank arm and 4 include Liang Ge branches, respectively positioned at the left and right sides of the lower section of crossbeam 1, be connected with the lower bent lever 5 of lower section
And keep symmetrical, and be symmetrical set in upper inner side of cranking arm two conducting wire hanging points be used for hang a phase conductor.
Lower bent lever 5 be located above crank arm 4 lower section.Lower bent lever 5 includes Liang Ge branches, is symmetrically arranged in 7 top of tower body
The left and right sides, be connected with tower body.Lower bent lever 5 and the width of tower body junction are 5.0m.
Interlamellar spacing between earth wire support and conducting wire cross-arm is 6.5m；Between conducting wire cross-arm and upper lower bent lever junction 6
Interlamellar spacing is 7.5m；Spacing between upper lower bent lever junction 6 and lower bent lever 5,7 junction of tower body is 11.0m.
The conducting wire hanging point of the utility model conducting wire cross-arm 3 sets single double hanging point to be connected with gold utensil, reasonable structural arrangement, power transmission
Clearly, the safe operation of engineering has been ensured.The utility model tangent tower ground wire hanging point is arranged on earth wire support beak type construction
Lower plane end, conducting wire hanging point be separately positioned on 3 bottom of conducting wire cross-arm, on crank arm 4 inner sides, hanging point uses hanging plate pattern, from
And welding job is avoided, the effective stress performance for strengthening hanging point meets the requirements such as the intensity of hanging wire node.
Interlamellar spacing between conducting wire cross-arm 3 and upper lower bent lever junction 6 is 7.5m；Upper lower bent lever junction 6 and lower bent lever
5th, the spacing between 7 junction of tower body is 11.0m.The position of rational selection junction 6 can effectively save material, and
Stress can be more preferable.7 main material of tower body mainly uses Q420 high-strength steel, and main material rigidity changes according to rule from top to bottom, reduces weldering to the greatest extent
Connect, it is easy for construction, reduce tower weight.The bottom of tower body 7 is connected with tower leg 8, and two leg length differences of tower leg are different to adapt to
Topography and geomorphology.The height of 8 liang of side legs of tower leg is respectively 11m, 33m, and height differs 22m.Meanwhile the left and right sides of short tower leg 9 is high
Degree is also different, is respectively 8m, 24m, and height differs 16m.Maximum half root of steel tower opens control in 10.34m.
In the utility model structure arrangement, four groups of larger supporting legs are highly differed using 8m, 11m, 24m and 33m, at the same time will
Half root of most long leg opens control in 10.34m so that steel tower can adapt to very steep hills area landform, optimize circuit road
Footpath, not only reduces the cost of engineering, while can effectively shorten the duration of a project, disclosure satisfy that the line in the relatively more severe area of orographic condition
Road, which is set up, to be required, the steel tower arranged using complete unequel leg extension, is enabled to line route more to optimize, is made so as to reduce engineering
Valency.
Claims (8)
1. a kind of 500kV transmission line of alternation currents straight line height is across tower, it is characterised in that：Including by above cranking arm (4) and lower bent lever (5)
Support is connected to the crossbeam (1) on tower body (7) top, and the both ends of crossbeam (1) are connected with the conducting wire for hanging two-phase transmission pressure
Cross-arm (3), the earth wire support (2) for hanging ground wire is provided with above crossbeam (1)；Crank arm on described and hang one on (4)
Phase transmission pressure, conducting wire cross-arm (3) and above crank arm (4) be equipped with conducting wire hanging point；Earth wire support is provided with ground wire hanging point on (2),
Ground wire hanging point and conducting wire hanging point are hanging plate type hanging point；Crank arm on described (4) and lower bent lever (5) is by two parts pyramidal structure
It is composed, lower bent lever (5) is connected with the top of tower body (7) and two parts pyramidal structure expands outwardly, above crank arm (4) and lower song
The pyramidal structure tip of arm (5) is opposite to be connected, above crank arm (4) be arranged on the surfaces of lower bent lever (5), crossbeam (1) is with above cranking arm
(4) pyramidal structure afterbody connection；The termination of earth wire support (2) is beak type, and the lower plane of beak part is trapezoidal, and ground wire is hung
Point is arranged on the lower plane of beak part, and the cross-arm termination of conducting wire cross-arm (3) is pointed；The bottom of the tower body (7) is set
There is tower leg (8), tower leg (8) is made of two different supporting legs of length.
2. 500kV transmission line of alternation currents straight line height is across tower according to claim 1, it is characterised in that：The earth wire support (2)
Lower plane outermost end mouth width be 0.6m；The bottom shape of conducting wire cross-arm (3) is rectangle, its mouth width is 1.6m；On crank arm (4) and
Width is 14.2m at the tip being connected between lower bent lever (5).
3. 500kV transmission line of alternation currents straight line height is across tower according to claim 1, it is characterised in that：The ground wire hanging point pair
Claim to be arranged on the end of earth wire support (2) away from tower body central axes 15.05m at；Conducting wire hanging point is symmetricly set on away from tower body central axes
At 17.04m；On the crank arm conducting wire hanging point on (4) top be symmetricly set on away from the 5.97m of tower body central axes.
4. 500kV transmission line of alternation currents straight line height is across tower according to claim 1, it is characterised in that：The earth wire support (2)
Floor projection length be 6.5m, vertical direction is highly 4.5m；The length of the conducting wire cross-arm (3) is 8.5m, conducting wire cross-arm
(3) root with crossbeam (1) junction is highly 2.9m；The overall length of the crossbeam (1) is 17.1m, and crossbeam (1) is in central axes
Place's height is 1m, and crossbeam (1) and junction width of above cranking arm are 2.8m.
5. 500kV transmission line of alternation currents straight line height is across tower according to claim 1, it is characterised in that：The earth wire support (2)
End angle be 45 °；The cross-arm termination angle of conducting wire cross-arm (3) is 18.2 °.
6. 500kV transmission line of alternation currents straight line height is across tower according to claim 1, it is characterised in that：The earth wire support (2)
The top and conducting wire cross-arm (3) between interlamellar spacing be 7.3m, conducting wire cross-arm (3) and the interlamellar spacing for junction of cranking arm are
7.5m, the interlamellar spacing cranked arm between junction and tower body (7) top is 11.0m.
7. 500kV transmission line of alternation currents straight line height is across tower according to claim 1, it is characterised in that：Form the two of tower leg (8)
In a supporting leg, extending bracket is provided with long tower leg, and the minimum length of short tower leg is 8m, the maximum length of long tower leg is 33m,
The maximum length difference of two supporting legs is 25m.
8. 500kV transmission line of alternation currents straight line height is across tower according to claim 1, it is characterised in that：Tower body (7) uses Q420
Steel are made, transmission pressure using duplex gold utensil and conducting wire cross-arm (3) and on crank arm (4) be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720708621.4U CN207245308U (en) | 2017-06-16 | 2017-06-16 | A kind of 500kV transmission line of alternation currents straight line height is across tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720708621.4U CN207245308U (en) | 2017-06-16 | 2017-06-16 | A kind of 500kV transmission line of alternation currents straight line height is across tower |
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| Publication Number | Publication Date |
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| CN207245308U true CN207245308U (en) | 2018-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720708621.4U Active CN207245308U (en) | 2017-06-16 | 2017-06-16 | A kind of 500kV transmission line of alternation currents straight line height is across tower |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110616938A (en) * | 2019-09-25 | 2019-12-27 | 四川电力设计咨询有限责任公司 | 500kV transmission single-circuit tangent tower |
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2017
- 2017-06-16 CN CN201720708621.4U patent/CN207245308U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110616938A (en) * | 2019-09-25 | 2019-12-27 | 四川电力设计咨询有限责任公司 | 500kV transmission single-circuit tangent tower |
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