CN105633888A - Cross arm for transmission tower - Google Patents
Cross arm for transmission tower Download PDFInfo
- Publication number
- CN105633888A CN105633888A CN201610089651.1A CN201610089651A CN105633888A CN 105633888 A CN105633888 A CN 105633888A CN 201610089651 A CN201610089651 A CN 201610089651A CN 105633888 A CN105633888 A CN 105633888A
- Authority
- CN
- China
- Prior art keywords
- cross
- arm body
- arm
- cross arm
- transmission tower
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/04—Arrangements or devices for relieving mechanical tension
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/24—Cross arms
Abstract
The invention discloses a cross arm for a transmission tower. The cross arm comprises a cross arm body, a U-shaped bolt, movable rods and bottom plates, wherein the cross section of the cross arm body is L-shaped; upper mounting holes and lower mounting holes are formed in the cross arm body; a fixed plate is also arranged on the cross arm body; the U-shaped bolt is arranged in the upper mounting holes; nuts are arranged on the U-shaped bolt; the U-shaped bolt is fixedly connected with the cross arm body through the nuts; the movable rods are arranged below the cross arm body; the movable rods are V-shaped; the bottom plates are arranged below the movable rods; and the movable rods are hinged with the cross arm body and the bottom plates respectively. The cross arm for the transmission tower is compact in structure, convenient to install, good in shock-resistant effect, and capable of preventing the cable from being broken due to overhigh stress.
Description
Technical field
The present invention relates to a kind of transmission tower cross-arm.
Background technology
The angle bar that electric pole top is laterally fixing, has porcelain vase above, is used for supporting trolley wire. The effect of cross-arm: cross-arm is ingredient important in shaft tower, its effect is used to install insulator and gold utensil, to support wire, lightning conducter, and so as to keeps certain safe distance by regulation.
Can be divided into by purposes: straight line cross-arm; Buck arm; Strain cross arm. Can be divided into by material: iron cross arm; Porcelain pole arm; Composite insulation cross-arm. Straight line cross-arm: only consider, in normal non-broken string situation, to bear vertical load and the horizontal loading of wire; Strain cross arm: bear outside wire vertically and horizontally loading, also by poor for the pulling force that bears wire; Buck arm: except the vertically and horizontally loading bearing wire, also will bear bigger unilateral wire tension. Stressing conditions according to cross-arm, adopts single cross-arm to the angle pole of straight line pole or less than 15, and corner angle pole more than 15 degree, tension-resistant rod, terminal pole, branch's bar all adopt pair cross-arm. Cross-arm is typically mounted at from masthead 300mm place, and straight line cross-arm should be contained in power side, angle pole, terminal pole, branch's bar cross-arm should be contained in bracing wire side.
Current existing transmission tower cross-arm structural strength is not high, installs inconvenience during use, and cable is mounted above the phenomenon that stress is excessive and ruptures easily occur.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of compact conformation, easy for installation, has good anti seismic efficiency, it is possible to effectively prevent cable stress excessive and the transmission tower cross-arm broken.
For solving the problems referred to above, the present invention adopts the following technical scheme that a kind of transmission tower cross-arm, including cross-arm body, U-bolt, motion bar and base plate, the L-shaped setting in described cross-arm body cross section, described cross-arm body is provided with installing hole and lower installing hole, described cross-arm body is additionally provided with fixing plate, described U-bolt is located in installing hole, described U-bolt is provided with nut, described U-bolt is connected by nut and cross-arm body are fixing, described motion bar is located at below cross-arm body, the V-shaped setting of described motion bar, described base plate is located at below motion bar, described motion bar is hinged with cross-arm body and base plate respectively.
As preferably, described fixing plate welds with cross-arm body, keeps Stability Analysis of Structures reliable.
As preferably, described fixing plate undulate is arranged, and increases structural strength, has good anti seismic efficiency.
As preferably, described base plate is installed below insulator, conveniently installs electric wire.
As preferably, being provided with rubber blanket inside described U-bolt, keep installation compact, it is prevented that to cause structural damage when mounted.
The invention have the benefit that the U-bolt of setting keeps cross-arm body construction compact, easy for installation, the L-shaped setting in cross-arm body cross section can strengthen structural strength effectively, when fixing plate keeps installing, stability is high, motion bar is hinged with cross-arm body and base plate respectively can keep the insulator on base plate to move when stress so that electric wire is not easily broken by external force.
Accompanying drawing explanation
Fig. 1 is the structure chart of a kind of transmission tower cross-arm of the present invention.
Detailed description of the invention
As shown in Figure 1, a kind of transmission tower cross-arm, including cross-arm body 1, U-bolt 2, motion bar 3 and base plate 4, the L-shaped setting in described cross-arm body 1 cross section, described cross-arm body 1 is provided with installing hole 5 and lower installing hole 6, described cross-arm body 1 is additionally provided with fixing plate 7, described U-bolt 2 is located in installing hole 5, described U-bolt 2 is provided with nut 8, described U-bolt 2 is connected by nut 8 is fixing with cross-arm body 1, described motion bar 3 is located at below cross-arm body 1, the described V-shaped setting of motion bar 3, described base plate 4 is located at below motion bar 3, described motion bar 3 is hinged with cross-arm body 1 and base plate 4 respectively.
Described fixing plate 7 welds with cross-arm body 1.
Described fixing plate 7 undulate is arranged.
Described base plate 4 is installed below insulator 9.
It is provided with rubber blanket 10 inside described U-bolt 2.
The invention have the benefit that the U-bolt of setting keeps cross-arm body construction compact, easy for installation, the L-shaped setting in cross-arm body cross section can strengthen structural strength effectively, when fixing plate keeps installing, stability is high, motion bar is hinged with cross-arm body and base plate respectively can keep the insulator on base plate to move when stress so that electric wire is not easily broken by external force.
The above, be only the specific embodiment of the present invention, but protection scope of the present invention be not limited thereto, any change expected without creative work or replacement, all should be encompassed within protection scope of the present invention.
Claims (5)
1. a transmission tower cross-arm, it is characterized in that: include cross-arm body, U-bolt, motion bar and base plate, the L-shaped setting in described cross-arm body cross section, described cross-arm body is provided with installing hole and lower installing hole, described cross-arm body is additionally provided with fixing plate, described U-bolt is located in installing hole, described U-bolt is provided with nut, described U-bolt is connected by nut and cross-arm body are fixing, described motion bar is located at below cross-arm body, the V-shaped setting of described motion bar, described base plate is located at below motion bar, described motion bar is hinged with cross-arm body and base plate respectively.
2. transmission tower cross-arm according to claim 1, it is characterised in that: described fixing plate welds with cross-arm body.
3. transmission tower cross-arm according to claim 2, it is characterised in that: described fixing plate undulate is arranged.
4. transmission tower cross-arm according to claim 3, it is characterised in that: described base plate is installed below insulator.
5. transmission tower cross-arm according to claim 4, it is characterised in that: it is provided with rubber blanket inside described U-bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610089651.1A CN105633888A (en) | 2016-02-18 | 2016-02-18 | Cross arm for transmission tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610089651.1A CN105633888A (en) | 2016-02-18 | 2016-02-18 | Cross arm for transmission tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105633888A true CN105633888A (en) | 2016-06-01 |
Family
ID=56048561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610089651.1A Pending CN105633888A (en) | 2016-02-18 | 2016-02-18 | Cross arm for transmission tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105633888A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108035610A (en) * | 2017-11-20 | 2018-05-15 | 国网河南省电力公司安阳供电公司 | A kind of insulator crossarm of composite glass fiber winding |
| CN111600269A (en) * | 2020-06-04 | 2020-08-28 | 赵青山 | High-altitude erection line electric power cross arm |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100892595B1 (en) * | 2008-09-22 | 2009-04-08 | 주식회사 천일이앤씨 | Insulator support for electric pole |
| CN201307735Y (en) * | 2008-12-04 | 2009-09-09 | 河南省电力公司鹤壁供电公司 | Support cross arm for electrified overhaul of high voltage line |
| CN101728808A (en) * | 2010-01-23 | 2010-06-09 | 山东迅实电气有限公司 | Arrester for electrified railway traction power supply system |
| CN103594993A (en) * | 2013-11-11 | 2014-02-19 | 国家电网公司 | High-voltage and low-voltage lead cross arm |
| CN203891558U (en) * | 2014-04-10 | 2014-10-22 | 国家电网公司 | Live lead wire fixing insulation cross arm |
| CN204089120U (en) * | 2014-09-26 | 2015-01-07 | 国家电网公司 | The connection of steel tower wire cross-arm hanging point improves structure |
| CN205544113U (en) * | 2016-02-18 | 2016-08-31 | 江苏常峰电力设备股份有限公司 | Cross arm for transmission tower |
-
2016
- 2016-02-18 CN CN201610089651.1A patent/CN105633888A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100892595B1 (en) * | 2008-09-22 | 2009-04-08 | 주식회사 천일이앤씨 | Insulator support for electric pole |
| CN201307735Y (en) * | 2008-12-04 | 2009-09-09 | 河南省电力公司鹤壁供电公司 | Support cross arm for electrified overhaul of high voltage line |
| CN101728808A (en) * | 2010-01-23 | 2010-06-09 | 山东迅实电气有限公司 | Arrester for electrified railway traction power supply system |
| CN103594993A (en) * | 2013-11-11 | 2014-02-19 | 国家电网公司 | High-voltage and low-voltage lead cross arm |
| CN203891558U (en) * | 2014-04-10 | 2014-10-22 | 国家电网公司 | Live lead wire fixing insulation cross arm |
| CN204089120U (en) * | 2014-09-26 | 2015-01-07 | 国家电网公司 | The connection of steel tower wire cross-arm hanging point improves structure |
| CN205544113U (en) * | 2016-02-18 | 2016-08-31 | 江苏常峰电力设备股份有限公司 | Cross arm for transmission tower |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108035610A (en) * | 2017-11-20 | 2018-05-15 | 国网河南省电力公司安阳供电公司 | A kind of insulator crossarm of composite glass fiber winding |
| CN111600269A (en) * | 2020-06-04 | 2020-08-28 | 赵青山 | High-altitude erection line electric power cross arm |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160601 |
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| WD01 | Invention patent application deemed withdrawn after publication |