CN201574613U - Pole for transmission tower - Google Patents
Pole for transmission tower Download PDFInfo
- Publication number
- CN201574613U CN201574613U CN200920278126XU CN200920278126U CN201574613U CN 201574613 U CN201574613 U CN 201574613U CN 200920278126X U CN200920278126X U CN 200920278126XU CN 200920278126 U CN200920278126 U CN 200920278126U CN 201574613 U CN201574613 U CN 201574613U
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Abstract
The utility model discloses a pole for a transmission tower, which belongs to the manufacturing field of the transmission tower. The pole for the transmission tower comprises a longitudinally submerged arc welded pipe and a hubbed welding neck flange. The longitudinally submerged arc welded pipe and the hubbed welding neck flange are connected by a butt welding. Compared with the prior angle steel type transmission tower, the utility model has the advantages of small steel consumption, high strength, stable property, small wind pressure and high bearing capacity. Compared with the prior steel pipe tower component which is connected by a plate flange and a stiffening plate, the utility model which is connected by the longitudinally submerged arc welded pipe and the hubbed flange by the butt welding can simplify the pole structure, reduce the weld quantity, and lower the influence of the complicated welded residual stress to the pole, realize the automatic welding and greatly improve the production efficiency. Seen from the exterior appearance, the joint has only a butt joint circumferential weld in simple and nice structure.
Description
Technical field
The utility model relates to iron tower of power transmission line, specifically is a kind of rod member of electric power pylon.
Background technology
Iron tower of power transmission line is called for short electric power tower, generally be divided into by its shape: wineglass type, cat head type, go up font, do five kinds of font and barrel shapes, be divided into by purposes: anchor support, tangent tower, angle tower, transposition tower (restringing phase position tower), terminal tower and crossover tower etc., their design feature is that various towers all belong to space truss structure, and is divided into angle steel tower or steel tube tower according to main material cross sectional shape difference.Wherein, the angle steel tower member mainly is made up of single or many equal leg angles; The steel tube tower member is welded by the strength plate by steel pipe and flat flange.Material generally uses two kinds of Q235 (A3F) and Q345 (16Mn), connects between member to adopt rough bolt, bears the shearing connection by bolt.Whole tower is made up of angle steel (steel pipe), connection steel plate, flange, bolt.Mainly there is following problems in the electric power pylon that adopts angle steel combined member or face-flange and strength plate welded unit to form:
1) adopt the iron tower blast of angle steel combined member big, have the member eccentric force, steel quantity consumption and basic stress are bigger.
2), build the common-tower double-return of voltage levels or, become inexorable trend, the angle steel tower development need that can not adapt to the situation with the many back transmission lines of tower along with the raising of domestic transmission line of electricity electric pressure and the anxiety in transmission line of electricity corridor.
3) the general circuit tangent tower of domestic UHV transmission line engineering master material internal force is between 4000kN～8500kN, angle tower master material internal force reaches 8000kN～15000kN, and the maximum section angle steel of domestic production at present is L200 * 24, single angle can not satisfy load bearing requirements, even adopt the Q420 high-strength steel, also must adopt Two bors d's oeuveres or four to piece together the angle steel structure.This structure is at design aspect, because stressed maldistribution between angle steel causes iron tower steel consumption index higher; Aspect iron tower processing, Two bors d's oeuveres or to piece together the angle steel difficulty of processing big more; Aspect construction, because structure, passing through thickness and increasing by the number of plies of bolt brings big difficulty for the construction of iron tower of power transmission line.
4) the steel tube tower welding job amount that adopts face-flange and strength plate to be welded to connect is big, and welding residual stress is big, and the member bulk deformation is wayward, and working (machining) efficiency is low, and the profile impression is poor.
5) conventional steel tower master material passes through welded construction mutually with the oblique most employing of connection at positions such as material, cross-arm, groove processing difficulties not only, and,, cause structural safety hidden danger because reasons in structure is difficult to through welding at the heel that passes through connection mutually.
Therefore, along with the fast development of Chinese national economy, China's power grid construction is had higher requirement.Original electric power pylon member can not satisfy the technology of transmission of electricity requirement, develops new electric power pylon member and becomes inexorable trend.
The utility model content
The utility model has overcome deficiency of the prior art, and a kind of steel tube member bar of electric power pylon is provided.
The technical solution of the utility model is:
A kind of rod member of electric power pylon is characterized in that, comprises a vertical masonry joint submerged-arc welded (SAW) pipe and a band neck W.N flange, and described straight-line joint submerged arc welding tube is connected by butt welding with band neck W.N flange.
The scope of the external diameter of straight-line joint submerged arc welding tube cross section is 426mm～1422mm.
The pipe thickness scope of described straight-line joint submerged arc welding tube is 8mm～44mm.
The taper neck neck altitude range of described band neck W.N flange is 42mm～119mm.
Described band neck W.N flange is provided with some nuts.
Compared with prior art, the beneficial effects of the utility model are:
The utlity model has that steel quantity consumption is few, intensity is high, stable performance, specification is flexible, blast is little, bearing capacity is high, the characteristics of good looking appearance, and can realize the automation welding, is particularly suitable for making electric power pylon.Compare with the described electric power pylon of background technology, have the following advantages:
1) under the situation of same material, the utility model can reduce steel, as calculated, reduces about 10%-20% with the double loop steel tube tower of material than this body weight of compound section angle steel tower; Compare with the steel tube tower of flat flange stiffener syndeton, the welding job amount reduces about 85%.
2) the utility model power transmission is clear, thereby has increased the total bearing capacity of member.
3) because the utility model front face area is little, can effectively reduce the wind load of electric power pylon, thereby reduce the deadweight of electric power pylon.
4) the utility model changes angle steel tower bolt connected node structure into steel pipe and flange welded construction, can realize the production line manufacturing, reduces the iron tower difficulty of processing;
5) but the utility model Material Processing is the band neck W.N flange of materials such as Q345, Q420, Q460, and with the supporting use of material welded tube, satisfy the performance requirement of electric power pylon with parts.
6) the utility model straight-line joint submerged arc welding tube adopts butt welding to be connected (this weld seam can be realized the automation welding, and weldquality is good, the efficient height) with band neck W.N flange, and structure simplifies the structure; Compare with traditional flat flange stiffener syndeton, reduced weld seam quantity, reduce of the influence of complicated welding residual stress,, greatly improved production efficiency because of prior automation welding to member.From in appearance, connecting portion only has a butt girth welding seam, and form of structure is simple, attractive in appearance.
Description of drawings
The structural representation of Fig. 1 the utility model electric power pylon rod member;
The cross sectional representation of Fig. 2 the utility model straight-line joint submerged arc welding tube;
The structural representation of Fig. 3 the utility model band neck W.N flange.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
With reference to figure 1, the utility model comprises a vertical masonry joint submerged-arc welded (SAW) pipe 2 and a band neck W.N flange 1, and straight-line joint submerged arc welding tube 2 and band neck W.N flange 1 are connected formation weld seam 3 by butt welding.
The utility model straight-line joint submerged arc welding tube is made with hot rolled steel plate.Steel plate adopts straight carbon steel (Q235), low-alloy high-tensile structural steel (Q345, Q420, Q460) etc.As shown in Figure 2, it has a longitudinal weld longitudinal seam 4, and weld seam adopts the submerged arc welding method to be welded.The inside and outside astute and able technology of promptly earlier pre-postwelding is not prone to misalignment, welds defectives such as inclined to one side and lack of penetration, and welding process is stable, the weldquality height.
The utility model adopts J-C-O or the moulding of many stepping forming methods of U-O-E, and the distortion of forming process light plate is even, and residual stress is little, and the surface is difficult for producing scratch.
The utility model adopts on-line and full-length machinery expanding technology, overall process adopts computer control, can effectively control the geometric accuracy of welded tube, and improved the stress distribution of welded tube by machinery expanding, make ovality of the present utility model, flexibility, external diameter allowable variation, length variation etc. satisfy the specific (special) requirements of electric power pylon.
The utility model speed of production is fast, the quality height, and moulding stress is evenly distributed, the tubular form rule, range of product size is big, and the conversion specification is fast and simple.
The straight-line joint submerged arc welding tube minimum outer diameter of the utility model processing is φ 426mm, and maximum outside diameter is φ 1422mm, is the welded tube of electric power pylon special use.
With reference to figure 3, the utility model adopts the band neck W.N flange 1 of materials such as Q345, Q420, Q460, and with the supporting use of material straight-line joint submerged arc welding tube.The neck neck of band neck W.N flange is tapered, can replace the surface plate flange ring to stiffener, has effectively guaranteed the rigidity of flange.
Straight-line joint submerged arc welding tube 2 adopts the butt welding mode to be connected with band neck W.N flange 1, can realize the automation welding, enhances productivity, and makes the tower body member succinct, attractive in appearance.
Band neck W.N flange is provided with some nuts 5, connects by bolt between the band neck W.N flange.
More than by specific embodiment the utility model has been described, it will be understood by those of skill in the art that in the scope that does not break away from the utility model essence, can make certain deformation or modification to the utility model; Its preparation method also is not limited to disclosed content among the embodiment.
Claims (5)
1. the rod member of an electric power pylon is characterized in that, comprises a vertical masonry joint submerged-arc welded (SAW) pipe and a band neck W.N flange, and described straight-line joint submerged arc welding tube is connected by butt welding with band neck W.N flange.
2. electric power pylon rod member as claimed in claim 1 is characterized in that, the external diameter scope of described straight-line joint submerged arc welding tube cross section is 426mm～1422mm.
3. electric power pylon rod member as claimed in claim 1 or 2 is characterized in that, the pipe thickness scope of described straight-line joint submerged arc welding tube is 8mm～44mm.
4. electric power pylon rod member as claimed in claim 3 is characterized in that, the taper neck neck altitude range of described band neck W.N flange is 42mm～119mm.
5. electric power pylon rod member as claimed in claim 1 is characterized in that described hubbed flange is provided with some nuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920278126XU CN201574613U (en) | 2009-12-16 | 2009-12-16 | Pole for transmission tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920278126XU CN201574613U (en) | 2009-12-16 | 2009-12-16 | Pole for transmission tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201574613U true CN201574613U (en) | 2010-09-08 |
Family
ID=42694489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920278126XU Expired - Lifetime CN201574613U (en) | 2009-12-16 | 2009-12-16 | Pole for transmission tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201574613U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103031977A (en) * | 2012-12-12 | 2013-04-10 | 中国电力科学研究院 | High-strength flexible hubbed flange structure |
| CN103883153A (en) * | 2014-03-04 | 2014-06-25 | 同济大学 | Single-pipe tower |
| CN104985305A (en) * | 2015-06-23 | 2015-10-21 | 广州增立钢管结构股份有限公司 | Improved steel tube and hubbed flange butt joint submerged arc welding method |
-
2009
- 2009-12-16 CN CN200920278126XU patent/CN201574613U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103031977A (en) * | 2012-12-12 | 2013-04-10 | 中国电力科学研究院 | High-strength flexible hubbed flange structure |
| CN103031977B (en) * | 2012-12-12 | 2015-07-08 | 中国电力科学研究院 | High-strength flexible hubbed flange structure |
| CN103883153A (en) * | 2014-03-04 | 2014-06-25 | 同济大学 | Single-pipe tower |
| CN103883153B (en) * | 2014-03-04 | 2016-08-17 | 同济大学 | A kind of single-pipe tower |
| CN104985305A (en) * | 2015-06-23 | 2015-10-21 | 广州增立钢管结构股份有限公司 | Improved steel tube and hubbed flange butt joint submerged arc welding method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jiangsu Zhenguang Power Equipment Construction Co., Ltd. Assignor: China Electric Power Research Institute Contract record no.: 2011320000541 Denomination of utility model: Pole for transmission tower Granted publication date: 20100908 License type: Exclusive License Record date: 20110408 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100908 |
|
| CX01 | Expiry of patent term |