CN104746935B - Power transmission tower - Google Patents
Power transmission tower Download PDFInfo
- Publication number
- CN104746935B CN104746935B CN201510161548.9A CN201510161548A CN104746935B CN 104746935 B CN104746935 B CN 104746935B CN 201510161548 A CN201510161548 A CN 201510161548A CN 104746935 B CN104746935 B CN 104746935B
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- Prior art keywords
- fixed
- tower
- insulator
- cross arm
- transmission tower
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 51
- 239000012212 insulator Substances 0.000 claims abstract description 50
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 11
- 239000010931 gold Substances 0.000 claims description 11
- 229910052737 gold Inorganic materials 0.000 claims description 11
- 239000002131 composite material Substances 0.000 abstract description 17
- 230000007547 defect Effects 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000463 material Substances 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
- 239000000843 powder Substances 0.000 description 1
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- Insulators (AREA)
Abstract
The invention discloses a power transmission tower, which comprises a tower body, a cross arm connected to the tower body and a wire clamp fitting connected to the tail end of the cross arm, wherein the wire clamp fitting is used for connecting a power transmission line, the cross arm comprises an insulator and a rotating device arranged on the insulator, and the wire clamp fitting can rotate along the axis of the cross arm through the rotating device. The power transmission tower overcomes the defect of poor torsion resistance of the composite cross arm, and greatly improves the applicability of the composite cross arm.
Description
Technical Field
The invention relates to power transmission equipment, in particular to a power transmission tower.
Background
In transmission of electricity equipment, compound cross arm is as the structure that supports transmission line operation, compares with traditional iron tower, because self insulating properties is good, the shaft tower receives the influence of wind load and reduces, exhales the height and is showing and reduce, has reduced the corridor width for whole tower weight alleviates, and the foundation effort also correspondingly reduces, has promoted the security performance, has simultaneously corrosion-resistant, environmental suitability is strong, and non-maintaining, designability advantage such as good.
The composite cross arm adopts the hollow insulator as a stressed member, has general torsion resistance, and cannot meet the requirement of torsion resistance on mechanical properties if being used on a power transmission tower with larger stress. Therefore, the problem of poor torsion resistance of the composite cross arm is urgently needed to be solved.
Disclosure of Invention
In view of the deficiencies of the prior art, it is an object of the present invention to provide a transmission tower that reduces the torsional forces experienced by the cross-arm.
In order to achieve the purpose, the technical means adopted by the invention are as follows: the utility model provides a power transmission tower, includes the body of the tower, connects the cross arm on this body of the tower to and connect at the terminal fastener gold utensil of this cross arm, this fastener gold utensil is used for connecting the power transmission line, and this cross arm includes the insulator and sets up the rotating device on this insulator, and this fastener gold utensil is rotatable through the axis of this rotating device along this cross arm.
Above-mentioned transmission tower through set up rotating device on the cross arm, makes the fastener gold utensil can take place to rotate along the axis, unloads the torsional force that this fastener gold utensil brought for above-mentioned cross arm through rotating, has avoided the cross arm to bear too big torsional force to influence the mechanical properties of cross arm. The power transmission tower overcomes the defect of poor torsion resistance of the composite cross arm, and greatly improves the applicability of the composite cross arm.
Preferably, the rotating device is disposed between the tower body and the insulator. More preferably, the rotating device includes a fixed plate fixed to the tower body and a movable plate fitted into the fixed plate, the movable plate being connected to an end of the insulator, and the movable plate being rotatable relative to the fixed plate along an axis of the cross arm. By providing the above-mentioned turning device between the tower body and the insulator, when the cross arm receives a torsional force, the cross arm turns relative to the tower body, and the torsional force is removed, thereby preventing the torsional force from acting on the cross arm itself.
Preferably, the rotating device is disposed between the insulator and the clamp fitting. More preferably, the rotating device comprises a fixed cavity fixed at the tail end of the insulator and a movable shaft extending from the fixed cavity, and the tail end of the movable shaft is connected with the wire clamp fitting. Through setting up this rotating device between this insulator and this fastener gold utensil, when the axis that the fastener gold utensil was expected to follow the cross arm takes place to rotate, through this rotating device, the fastener gold utensil can take place to rotate, has avoided the pivoted trend of this fastener gold utensil to become the torsional force that the cross arm bore.
More preferably, the power transmission tower further includes a diagonal member, one end of the diagonal member is fixed to the tower body, and the other end of the diagonal member is fixed to the end of the cross arm, and the diagonal member limits a rotation angle of the clamp fitting. Through the inclined pulling piece, the excessive rotation of the wire clamp fitting can be avoided, and meanwhile, the torsional force is converted into the pulling force of the inclined pulling piece.
More preferably, the power transmission tower further comprises a diagonal member, one end of the diagonal member is fixed to the tower body, and the other end of the diagonal member is fixed to the end of the insulator far away from the tower body. When the insulator rotates through the rotating device, the inclined pulling piece can limit the rotating angle of the insulator, and the rotating angle is prevented from being too large.
More preferably, above-mentioned power transmission tower still includes the diagonal member, should draw one end to one side to fix on this body of the tower, and the other end is fixed in the one end that this body of the tower was kept away from to this insulator, and the end of this diagonal member is provided with the locating part, and the end of above-mentioned moving axis is connected to this locating part, and the rotatory angle of this moving axis is restricted to this locating part. The limiting part extending from the inclined pulling part can prevent the rotating angle of the moving shaft from being too large. When the moving axis turned angle was too big, the locating part converted pivoted power into the pulling force on the piece that draws to the torsional force that will originally be used in the cross arm converts the pulling force on the piece that draws to one side.
More preferably, the power transmission tower further includes a diagonal member having one end fixed to the tower body and the other end fixed to a distal end of the movable shaft.
Drawings
Fig. 1 is a partial sectional view of a structure of a power transmission tower 1000 according to an embodiment of the present invention;
FIG. 2 is an enlarged partial schematic view of FIG. 1;
fig. 3 is a partial sectional view of the structure of a second power transmission tower 2000 according to an embodiment of the present invention;
FIG. 4 is an enlarged partial schematic view of FIG. 3;
fig. 5 is a partial sectional view of the structure of a triple transmission tower 3000 according to an embodiment of the present invention.
Wherein,
1000. 2000, 3000-transmission tower;
100. 200, 300-tower body;
110. 210-Cross arm;
111. 211, 311-insulators;
112-fixed plate; 212-fixed cavity;
113-moving plate; 213. 313-moving shaft;
114. 214-rotating means;
215-support shelf;
216-support plate;
217-bearing;
120. 220-wire clamp hardware;
130. 230, 330-diagonal draw;
331-a stop.
Detailed Description
As required, detailed embodiments of the present invention are disclosed herein. However, it is to be understood that the disclosed embodiments are merely exemplary of the invention, which may be embodied in various forms. Therefore, specific details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present invention in virtually any appropriately detailed manner, including employing various features disclosed herein in combination with features that may not be explicitly disclosed herein.
The first embodiment is as follows:
as shown in fig. 1 and 2, the transmission tower 1000 of the present embodiment includes a tower body 100, a cross arm 110 is connected to the tower body 100, and a clamp fitting 120 is connected to a terminal of the cross arm 110. In addition, a diagonal member 130 is provided between the tower body 100 and the cross arm 110. Only the structure of the cross arm 110 is processed in a sectional view in fig. 1 and 2.
In this embodiment, the cross arm 110 is a composite cross arm, and the cross arm 110 includes an insulator 111 as a main body, and a rotating device 114 connected to one end of the insulator 111. The rotating unit 114 is fixed to the tower body 100, and the insulator 111 is connected to the tower body 100 through the rotating unit 114. The insulator 111 is a hollow composite insulator, and fig. 1 and 2 are only schematic and do not show a shed structure outside the composite insulator.
The rotating device 114 includes a fixed plate 112 fixed on the tower body 100 and a movable plate 113 connected to one end of the insulator 111. The movable plate 113 is embedded in the fixed plate 112 and can freely rotate therein. The fixed plate 112 is formed by splicing an upper part and a lower part, and the movable plate 113 is clamped in the fixed plate 112 by splicing the upper part and the lower part. The contact part of the movable plate 113 and the fixed plate 112 can be added with powder lubricant for starting lubrication.
The lower end of the wire clamp fitting 120 is used for bearing a transmission line. The diagonal member 130 has one end fixed to the tower body 100 above the cross arm 110 and the other end fixed to the end of the insulator 111 away from the tower body 100. The diagonal member 130 is a line composite insulator.
In the power transmission tower 1000 of the present embodiment, the turning device 114 is provided between the insulator 111 and the tower body 100, so that when the cross arm 110 receives a twisting force from the clamp fitting 120, the insulator 111 is turned, and the twisting force is removed. Meanwhile, due to the arrangement of the diagonal member 130, the insulator 111 does not rotate excessively, and the residual torsional force is converted into a tensile force on the diagonal member 130. In the operation process of the power transmission tower 1000 of the embodiment, the cross arm 110 is not damaged by the torsional force, so that the applicability of the composite cross arm is improved, and the composite power transmission tower is favorably established by applying the composite cross arm in a large batch.
Example two:
as shown in fig. 3 and 4, the transmission tower 2000 of the present embodiment includes a tower body 200, a cross arm 210 is connected to the tower body 200, and a clip fitting 220 is connected to a terminal of the cross arm 210. In addition, a diagonal member 230 is provided between the tower body 200 and the cross arm 210.
In this embodiment, the cross arm 210 is a composite cross arm, and the cross arm 210 includes an insulator 211 as a main body, and a rotating device 214 connected to one end of the insulator 211. The other end of insulator 211 is fixed to tower 200. The wire clamp fitting 220 is connected to the rotating device 214. The insulator 211 is a hollow composite insulator, and fig. 3 and 4 are only schematic and do not show the shed structure outside the composite insulator.
The rotating device 214 includes a fixed cavity 212 fixed at an end of the insulator 211 and a moving shaft 213 connected to the clamp fitting 220. The moving shaft 213 penetrates into the fixed cavity 212. The cavity 212 is fixed to the center of the end of the insulator 211 by a support bracket 215. A bearing 217 is arranged in the fixed cavity 212, the moving shaft 213 is connected with the fixed cavity 212 through the bearing 217, and the moving shaft 213 can freely rotate in the fixed cavity. Support plates 216 are further provided at both ends of the fixed chamber 212, respectively, and the moving shaft 213 passes through the support plates 216. In fig. 3 and 4, only the rotating device 214 except for the rotating shaft 213 is shown in a sectional view.
The lower end of the wire clamp fitting 220 is used for bearing a power transmission line. The diagonal member 230 has one end fixed to the tower 200 above the cross arm 210 and the other end fixed to the movable shaft 213. The diagonal member 230 is a line composite insulator.
The transmission tower 2000 of the present embodiment has all the advantages of the transmission tower 1000 of the first embodiment of the present invention. Meanwhile, when the cross arm 210 of the embodiment receives a torsional force, the insulator 211 of the main body does not rotate, but only the moving shaft 213 rotates, so that the torsional stress generated inside when the insulator 211 rotates is avoided. In addition, unlike the embodiment of the present invention, the rotating device 214 does not need to bear the weight of the insulator 211, so as to prevent the rotating device 214 from being excessively worn. In addition, the rotating device 214 is provided with a bearing 217 to facilitate the rotation of the movable shaft 213, and the support plate 216 is designed to reduce the abrasion of the movable shaft 213 on the bearing 217.
Example three:
as shown in fig. 5, a transmission tower 3000 of this embodiment has substantially the same structure as the transmission tower 2000 of the second embodiment of the present invention, except that one end of the diagonal member 330 is fixed to the tower body 300, and the other end is fixed to the end of the insulator 311 away from the tower body 300. A limiting member 331 extends from the end of the cable-stayed member 330, and one end of the limiting member 331 is fixed to the end of the cable-stayed member 330, and the other end is fixed to the moving shaft 313.
In the power transmission tower 3000 of the embodiment, the diagonal member 330 directly starts the supporting insulator 311, and the limiting member 331 limits the rotation angle of the moving shaft 313, so that excessive tension in the direction along the diagonal member 330, which is applied to the moving shaft 313 by the diagonal member 330, is effectively avoided, and abrasion of the rotating device due to the tension is avoided. In addition, the limit member 331 can also effectively prevent the inclined pulling member 330 from swinging greatly when the moving shaft 313 rotates reciprocally, so as to affect the whole power transmission tower 3000. In addition, the transmission tower 3000 of the present embodiment has all the advantages of the transmission tower 2000 of the second embodiment of the present invention.
The rotating device 114 in the first embodiment of the present invention can be replaced with the rotating device 214 in the second embodiment, and similarly, the rotating device 214 in the second embodiment can also be replaced with the rotating device 114 in the first embodiment. Meanwhile, the invention can also be provided with rotating devices at both ends of the cross arm.
While the invention has been described with reference to the above disclosure and features, it will be understood by those skilled in the art that various changes and modifications in the above constructions and materials can be made, including combinations of features disclosed herein either individually or in any combination, as appropriate, without departing from the spirit of the invention. Such variations and/or combinations are within the skill of the art to which the invention pertains and are within the scope of the following claims.
Claims (9)
1. The utility model provides a power transmission tower, includes the body of the tower, connects cross arm on the body of the tower to and connect in the terminal fastener gold utensil of cross arm, the fastener gold utensil is used for connecting the power transmission line, its characterized in that: the cross arm comprises an insulator and a rotating device arranged on the insulator, and the wire clamp fitting is rotatable along the axis of the cross arm through the rotating device.
2. The transmission tower of claim 1, wherein: the rotating device is arranged between the tower body and the insulator.
3. The transmission tower of claim 2, wherein: the rotating device comprises a fixed disc and a movable disc embedded into the fixed disc, the fixed disc is fixed on the tower body, the movable disc is connected to the end portion of the insulator, and the movable disc can rotate relative to the fixed disc along the axis of the cross arm.
4. The transmission tower of claim 1, wherein: the rotating device is arranged between the insulator and the wire clamp hardware fitting.
5. The transmission tower of claim 4, wherein: the rotating device comprises a fixed cavity fixed at the tail end of the insulator and a movable shaft extending out of the fixed cavity, and the tail end of the movable shaft is connected with the wire clamp fitting.
6. The transmission tower according to any one of claims 1 to 5, wherein: the power transmission tower further comprises an inclined pulling piece, one end of the inclined pulling piece is fixed to the tower body, the other end of the inclined pulling piece is fixed to the tail end of the cross arm, and the inclined pulling piece limits the rotation angle of the wire clamp fitting.
7. The transmission tower according to any one of claims 1 to 5, wherein: the power transmission tower further comprises an inclined pulling piece, one end of the inclined pulling piece is fixed to the tower body, and the other end of the inclined pulling piece is fixed to one end, far away from the tower body, of the insulator.
8. The transmission tower of claim 5, wherein: the power transmission tower further comprises an inclined pulling piece, one end of the inclined pulling piece is fixed to the tower body, the other end of the inclined pulling piece is fixed to one end of the insulator, the end of the inclined pulling piece is provided with a limiting piece, the limiting piece is connected with the end of the moving shaft, and the limiting piece limits the rotating angle of the moving shaft.
9. The transmission tower of claim 5, wherein: the power transmission tower further comprises an inclined pulling piece, one end of the inclined pulling piece is fixed on the tower body, and the other end of the inclined pulling piece is fixed at the tail end of the moving shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510161548.9A CN104746935B (en) | 2015-04-07 | 2015-04-07 | Power transmission tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510161548.9A CN104746935B (en) | 2015-04-07 | 2015-04-07 | Power transmission tower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104746935A CN104746935A (en) | 2015-07-01 |
| CN104746935B true CN104746935B (en) | 2017-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510161548.9A Active CN104746935B (en) | 2015-04-07 | 2015-04-07 | Power transmission tower |
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| Country | Link |
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111877841B (en) * | 2020-09-01 | 2021-06-29 | 马鞍山辰慕芸智能科技发展有限公司 | Transmission tower preventing arm stretching torsion by utilizing thin-wall buckling torsion |
| CN111997431A (en) * | 2020-09-01 | 2020-11-27 | 马鞍山辰慕芸智能科技发展有限公司 | Main tower torsion preventing power transmission tower utilizing thin-wall buckling torsion |
| CN111927186B (en) * | 2020-09-02 | 2021-07-09 | 马鞍山辰慕芸智能科技发展有限公司 | Transmission tower with lead rubber twisted and lifted |
| CN112012551B (en) * | 2020-09-02 | 2021-07-09 | 马鞍山辰慕芸智能科技发展有限公司 | Elastic transmission tower capable of achieving self-resetting maintenance and torsion of rubber and ascending of extending arm |
| CN111877838B (en) * | 2020-09-02 | 2021-06-15 | 马鞍山辰慕芸智能科技发展有限公司 | Main tower torsion preventing power transmission tower consuming energy by rubber metal damper |
| CN111877837B (en) * | 2020-09-02 | 2021-06-29 | 马鞍山辰慕芸智能科技发展有限公司 | Transmission tower with rubber metal damper capable of dissipating energy and twisting extending arm to rise |
| CN112012550A (en) * | 2020-09-02 | 2020-12-01 | 马鞍山辰慕芸智能科技发展有限公司 | Transmission tower with hydraulic damping torsion extending arm ascending |
| CN112012552B (en) * | 2020-09-02 | 2021-07-09 | 马鞍山辰慕芸智能科技发展有限公司 | Hydraulic damping power transmission tower capable of achieving self-resetting maintenance and with ascending extending arm |
| CN112112469B (en) * | 2020-09-23 | 2021-07-16 | 马鞍山辰慕芸智能科技发展有限公司 | Main tower torsion preventing power transmission tower with metal damper for energy dissipation and hydraulic reset |
| CN112282481A (en) * | 2020-11-27 | 2021-01-29 | 上海神马电力工程有限公司 | Power transmission tower |
| CN112282480A (en) * | 2020-11-27 | 2021-01-29 | 上海神马电力工程有限公司 | Power transmission tower |
| CN112252811A (en) * | 2020-11-27 | 2021-01-22 | 上海神马电力工程有限公司 | Connect rotating assembly and transmission tower |
| CN116378494A (en) * | 2023-03-22 | 2023-07-04 | 上海神马电力工程有限公司 | Cross-arm component and transmission tower |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7057103B1 (en) * | 2004-05-07 | 2006-06-06 | Alan B Peabody | Transmission tower devices for reducing longitudinal shock loads |
| KR100913253B1 (en) * | 2009-01-30 | 2009-08-24 | 주식회사 서우 | Transmission line installation method using suspension type fixing device to fix electric wire for miniaturization of straight steel tower and suspension type fixing device of polymer insulating arm |
| CN201466635U (en) * | 2009-06-19 | 2010-05-12 | 国网电力科学研究院武汉南瑞有限责任公司 | A Composite Insulation Tower Insulation Tower Head |
| CN103437586B (en) * | 2013-08-05 | 2015-11-25 | 河北省电力勘测设计研究院 | Composite rotation cross-arm |
| CN203895917U (en) * | 2014-04-10 | 2014-10-22 | 国家电网公司 | Self-regulation cross-arm |
| CN204571448U (en) * | 2015-04-07 | 2015-08-19 | 江苏神马电力股份有限公司 | Power transmission tower |
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2015
- 2015-04-07 CN CN201510161548.9A patent/CN104746935B/en active Active
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| CN104746935A (en) | 2015-07-01 |
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Effective date of registration: 20201126 Address after: 501, building g, Hongqiao Green Valley, 69 Yonghong Road, Minhang District, Shanghai, 201100 Patentee after: Shanghai Shenma Electric Power Engineering Co.,Ltd. Address before: 226017 Jiangsu city of Nantong province Nantong economic and Technological Development Zone Science and Technology Industrial Park of Su Tong Jiang Cheng Road No. 1088 Jiang Park Building 3, room 1467, R & D Patentee before: JIANGSU SHENMA ELECTRIC Co.,Ltd. |
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Address after: 200050 room 801, building 2, No. 55, Jinlun Road, Changning District, Shanghai Patentee after: Shanghai Shenma Electric Power Engineering Co.,Ltd. Address before: 501, building g, Hongqiao Green Valley, 69 Yonghong Road, Minhang District, Shanghai 201100 Patentee before: Shanghai Shenma Electric Power Engineering Co.,Ltd. |