CN204590752U - A kind of single time, transmission line of alternation current straight steel pipe rod - Google Patents
A kind of single time, transmission line of alternation current straight steel pipe rod Download PDFInfo
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- CN204590752U CN204590752U CN201520253845.1U CN201520253845U CN204590752U CN 204590752 U CN204590752 U CN 204590752U CN 201520253845 U CN201520253845 U CN 201520253845U CN 204590752 U CN204590752 U CN 204590752U
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- arm
- cross
- upper strata
- lower floor
- ground wire
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 20
- 239000010959 steel Substances 0.000 title claims abstract description 20
- 230000005540 biological transmission Effects 0.000 title claims abstract description 16
- 239000004020 conductor Substances 0.000 claims abstract description 30
- 238000009413 insulation Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Abstract
The utility model provides single time, a kind of transmission line of alternation current straight steel pipe rod, described upper strata cross-arm, lower floor's cross-arm and shaft are arranged in " doing " font, distance between upper strata cross-arm and lower floor's cross-arm is 3500-4000mm, distance between lower floor's cross-arm and shaft bottom is for being more than or equal to 7500mm, the two ends of upper strata cross-arm are respectively arranged with the ground wire hanging point for fixing ground wire, upper strata cross-arm between ground wire hanging point and described shaft is provided with for phase conductor hanging point in fixing middle phase conductor, the two ends of described lower floor cross-arm are respectively arranged with the limit phase conductor hanging point for fixed edge phase conductor.In program handle, phase conductor is directly arranged on ground wire cross-arm, utilize wire insulation string length formed lead, ground wire vertical interval, thus save " on " the middle phase cross-arm of font shaft tower, one deck is led, the space of ground wire vertical distance more to make bar head spatial altitude reduce, by dimensionally-optimised for upward-formed pole tower head portion be original about 1/2 ~ 3/7.
Description
Technical field
The utility model relates to a kind of power transmission sequence steel pipe pole, the single time straight steel pipe rod in especially a kind of transmission line of alternation current.
Background technology
Because of processing and manufacturing and material restriction, current power system 110 ~ 220kV single time, transmission line of alternation current straight steel pipe rod cannot be designed to the cat-head transmission tower of the horizontal wineglass tower of wire and the positive triangle arrangement of wire as angle steel tower, but be " on " font structure, namely wire cross-arm is divided into two-layer, middle phase cross-arm is positioned at upper strata, both sides phase cross-arm is positioned at lower floor, horizontally, the oblique triangle of three-phase conducting wire, in " on " type arranges; The shaft tower the superiors are ground wire cross-arm, and both sides horizontal symmetrical configures.Of the prior art " on " word structure straight line pole has the following disadvantages:
(1) " on " word structure straight line pole complex structure, steel using amount is high, manufacture, transport, construction, install, run, maintenance is large;
(2) because having wire cross-arm, center line cross-arm and upper strata cross-arm three layers of cross-arm, causing bar head to take up room greatly, limiting shaft tower and boring the use of getting over the places such as structure;
(3) bore when more using for ensure to hand over span from, shaft tower can only be reduced and exhale title height or change tension-resistant rod, this can make the distance of line-to-ground too low and not reach the height of actual needs, in addition, the distance of line-to-ground is too low also can exist certain potential safety hazard, in addition, reducing shaft tower exhales title height or change tension-resistant rod to also improve construction costs.
This is the weak point existing for prior art.
Summary of the invention
Technical problem to be solved in the utility model, be exactly for the deficiency existing for prior art, and the technical scheme of the single time straight steel pipe rod in a kind of transmission line of alternation current is provided, the program is according to " pendency " feature of the sub-hardware string vertical hanging of straight line pole wire insulation, in phase conductor be directly arranged on ground wire cross-arm, utilize wire insulation string length to be formed to lead, ground wire vertical interval, thus save " on " the middle phase cross-arm of font shaft tower, more make bar head spatial altitude reduce one deck to lead, the space of ground wire vertical distance, by dimensionally-optimised for upward-formed pole tower head portion be original about 1/2 ~ 3/7.
This programme is achieved by the following technical measures: single time, a kind of transmission line of alternation current straight steel pipe rod, comprise shaft and be fixed on the cross-arm on shaft, described cross-arm is made up of upper strata cross-arm and lower floor's cross-arm two parts, described upper strata cross-arm, lower floor's cross-arm and shaft are arranged in " doing " font, distance between described upper strata cross-arm and lower floor's cross-arm is 3500-4000mm, distance between described lower floor cross-arm and shaft bottom is for being more than or equal to 7500mm, described upper strata cross-arm and lower floor's cross-arm are all symmetrically arranged along the axis of described shaft, the two ends of described upper strata cross-arm are respectively arranged with the ground wire hanging point for fixing ground wire, upper strata cross-arm between ground wire hanging point and described shaft is provided with for phase conductor hanging point in fixing middle phase conductor, the two ends of described lower floor cross-arm are respectively arranged with the limit phase conductor hanging point for fixed edge phase conductor.
Further improvement of the utility model also has, and described upper strata cross-arm is equal with the length of lower floor's cross-arm.
Further improvement of the utility model also has, and described shaft, upper strata cross-arm and lower floor's cross-arm are integral type structure.
Further improvement of the utility model also has, and the ground wire hanging point at cross-arm two ends, described upper strata is symmetrical arranged.
Further improvement of the utility model also has, and the limit phase conductor hanging point at described lower floor's cross-arm two ends is symmetrical arranged.
Further improvement of the utility model also has, and the distance between the middle phase conductor hanging point of described upper strata cross-arm and one of them ground wire hanging point is 500mm.
The beneficial effect of this programme can be learnt according to describing of such scheme, present patent application with of the prior art " on " compared with the shaft tower of font, when adopt " on " font shaft tower bore the structure of more certain altitude and cannot bore more time, adopt " doing " of the present utility model font shaft tower can bore more, and when " on " font shaft tower and " doing " of the present utility model font shaft tower all can bore more, the utility model is because decreasing middle phase cross-arm, thus it exhales title highly large, corresponding distance to the ground is large, safety is high, in addition, " doing " of the present utility model font tower structure is simple, easy to maintenance, lightweight, may be used for engineering construction completely.
As can be seen here, the utility model compared with prior art, has substantive distinguishing features and progress, and its beneficial effect implemented also is apparent.
Accompanying drawing explanation
Fig. 1 be in prior art " on " structural representation of font shaft tower.
Fig. 2 is the structural representation of the utility model detailed description of the invention.
Fig. 3 is the structural representation that the utility model is connected with wire.
In figure, 1 is shaft, and 2 is lower floor's cross-arm, and 3 is upper strata cross-arm, and 4 is limit phase conductor hanging point, and 4.1 is limit phase conductor, and 5 is ground wire hanging point, and 5.1 is ground wire, and 6 is middle phase conductor hanging point, and 6.1 is middle phase conductor, and 7 is middle level cross-arm.
Detailed description of the invention
For the technical characterstic of this programme can be clearly demonstrated, below by a detailed description of the invention, and in conjunction with its accompanying drawing, this programme is set forth.
Can be found out by accompanying drawing, a kind of single time, transmission line of alternation current straight steel pipe rod, the cross-arm comprising shaft 1 and be fixed on shaft 1, large in order to solve the take up room shaft tower overall height that causes greatly of bar head, the problem of more structure cannot be bored, the utility model is when non-residential areas is set up, and the overall height of single time straight steel pipe rod is minimum is 11000mm.Described cross-arm is made up of upper strata cross-arm 3 and lower floor's cross-arm 2 two parts, and described upper strata cross-arm 3, lower floor's cross-arm 2 and shaft 1 be setting in " do " font, and described upper strata cross-arm 3 is equal with the length of lower floor cross-arm 2.Described shaft 1, upper strata cross-arm 3 and lower floor's cross-arm 2 is integral type structure.Described upper strata cross-arm 3 and lower floor's cross-arm 2 are all symmetrically arranged along the axis of described shaft 1.The two ends of described upper strata cross-arm 3 are respectively arranged with the ground wire hanging point 5 for fixing ground wire 5.1, and the ground wire hanging point 5 at cross-arm 3 two ends, described upper strata is symmetrical arranged.Upper strata cross-arm 3 between ground wire hanging point 5 and described shaft 1 is provided with for phase conductor hanging point 6 in fixing middle phase conductor 6.1, the two ends of described lower floor cross-arm 2 are respectively arranged with the limit phase conductor hanging point 4 for fixed edge phase conductor 4.1.The limit phase conductor hanging point 4 at described lower floor cross-arm 2 two ends is symmetrical arranged.Distance between the middle phase conductor hanging point 6 of described upper strata cross-arm 3 and one of them ground wire hanging point 5 is 500mm.
Take total large at high proportion to solve background technology king-rod head, bore when more structure height is less and sacrifice circuit distance to the ground, reduce the problem of line security degree, in the utility model, distance between described upper strata cross-arm 3 and lower floor's cross-arm 2 is 3500-4000mm, if the distance between upper strata cross-arm 3 and lower floor's cross-arm 2 is less than 3500mm, then cannot meet the spacing between middle phase conductor 6.1 and limit phase conductor 4.1, if the distance between upper strata cross-arm 3 and lower floor's cross-arm 2 is greater than 4000mm, then the overall height of shaft tower can be caused greatly to increase because the height of bar head becomes, and then cause boring more structure time restricted.Distance between described lower floor cross-arm 2 and shaft 1 bottom is for being more than or equal to 7500mm, meet and minimumly exhale weighing lever tower height degree, if the distance between lower floor's cross-arm 2 and shaft 1 bottom is less than 7500mm, then can because line-to-ground be apart from too small and produce certain potential safety hazard.
The consumption of the utility model steel is low, economic performance is excellent, returns straight steel pipe rod and compares, can optimize shaft tower head quality 142kg with national grid universal design 1GGA3-ZG1 type list; Shaft tower head space is little, and structure is simple, compact, still for 1GGA3-ZG1, can reduce vertical 3.0m, makes bar grease head highness be optimized for 3.5m by 6.5m; Applied widely, maximally utilise exhaling of shaft tower and claim height, improve the safety of line-to-ground Distance geometry; Structure is simple, and design processing, construction and installation, operation maintenance are conveniently.
By reference to the accompanying drawings the detailed description of the invention of utility model is described although above-mentioned; but the restriction not to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection domain of the present utility model.
Claims (6)
1. single time, a transmission line of alternation current straight steel pipe rod, comprise shaft and be fixed on the cross-arm on shaft, it is characterized in that: described cross-arm is made up of upper strata cross-arm and lower floor's cross-arm two parts, described upper strata cross-arm, lower floor's cross-arm and shaft are arranged in " doing " font, distance between described upper strata cross-arm and lower floor's cross-arm is 3500-4000mm, distance between described lower floor cross-arm and shaft bottom is for being more than or equal to 7500mm, described upper strata cross-arm and lower floor's cross-arm are all symmetrically arranged along the axis of described shaft, the two ends of described upper strata cross-arm are respectively arranged with the ground wire hanging point for fixing ground wire, upper strata cross-arm between ground wire hanging point and described shaft is provided with for phase conductor hanging point in fixing middle phase conductor, the two ends of described lower floor cross-arm are respectively arranged with the limit phase conductor hanging point for fixed edge phase conductor.
2. single time, transmission line of alternation current according to claim 1 straight steel pipe rod, is characterized in that: described upper strata cross-arm is equal with the length of lower floor's cross-arm.
3. single time, transmission line of alternation current according to claim 2 straight steel pipe rod, is characterized in that: described shaft, upper strata cross-arm and lower floor's cross-arm are integral type structure.
4., according to arbitrary described single time, the transmission line of alternation current straight steel pipe rod of claim 3, it is characterized in that: the ground wire hanging point at cross-arm two ends, described upper strata is symmetrical arranged.
5. single time, transmission line of alternation current according to claim 4 straight steel pipe rod, is characterized in that: the limit phase conductor hanging point at described lower floor's cross-arm two ends is symmetrical arranged.
6. single time, transmission line of alternation current according to claim 1 straight steel pipe rod, is characterized in that: the distance between the middle phase conductor hanging point of described upper strata cross-arm and one of them ground wire hanging point is 500mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520253845.1U CN204590752U (en) | 2015-04-24 | 2015-04-24 | A kind of single time, transmission line of alternation current straight steel pipe rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520253845.1U CN204590752U (en) | 2015-04-24 | 2015-04-24 | A kind of single time, transmission line of alternation current straight steel pipe rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204590752U true CN204590752U (en) | 2015-08-26 |
Family
ID=53926918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520253845.1U Active CN204590752U (en) | 2015-04-24 | 2015-04-24 | A kind of single time, transmission line of alternation current straight steel pipe rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204590752U (en) |
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2015
- 2015-04-24 CN CN201520253845.1U patent/CN204590752U/en active Active
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| GR01 | Patent grant |