CN104831982B - A kind of cross arm of tower bracing means - Google Patents
A kind of cross arm of tower bracing means Download PDFInfo
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- CN104831982B CN104831982B CN201510231219.7A CN201510231219A CN104831982B CN 104831982 B CN104831982 B CN 104831982B CN 201510231219 A CN201510231219 A CN 201510231219A CN 104831982 B CN104831982 B CN 104831982B
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- tower
- cross arm
- slide plate
- bracing means
- track
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- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 230000006378 damage Effects 0.000 abstract description 9
- 238000010276 construction Methods 0.000 abstract description 5
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 7
- 230000005611 electricity Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000003100 immobilizing effect Effects 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
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- 210000004899 c-terminal region Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003913 materials processing Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
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Abstract
The invention discloses a kind of cross arm of tower bracing means, including the track being connected with slide plate slides, the shaft tower brace fixed structure that track is arranged by two ends is fixed on shaft tower brace, is provided with the driving means with locking mechanism in slide plate, and slide plate drives lower edge track to move in driving means；Sled surface is hinged with one end of support bar, and the other end of support bar is fixed on cross arm of tower end by the cross arm of tower fixed structure of setting.The present invention passes through to drive the slide plate movement on track to the middle part of shaft tower brace, then locking mechanism is utilized to ensure the fixation of sledge displacement, finally cross arm of tower is supported form new supporting construction using support bar, can be by the redistribution to stress, the load making cross arm of tower is dispersed to other rod members, effectively prevent cross arm of tower damage under severe conditions, thus ensureing the safety of cross arm of tower.
Description
Technical field
The present invention relates to a kind of transmission tower auxiliary device, more particularly, to a kind of cross arm of tower bracing means.
Background technology
Transmission tower is the important component part in electric network composition, subjects transmission of electricity cable and other external force load actions.
Actual electric network is run and is shown, during the shaft tower under adverse weather condition destroys, is much because cross arm of tower damage causes.Once bar
Tower destroys, and its reparation difficulty is big, long in time limit, often results in heavy economic lossess and social influence.
Existing cross arm of tower damage study is shown：（1）Under sleet and high wind conditions, materials ' durability will reduce,
Transmission of electricity cable is multiplied with respect to normal condition to the load of shaft tower, directly contributes cross arm of tower bearing load and significantly increases
Plus；（2）When cross arm of tower bearing load increases, near the cross-arm of mobile jib tower there is stress concentration or large deformation may be significantly
Increase, the cross-arm of slim-lined construction easily causes damage to increase because of strut buckling.
For the destruction situation being likely to occur, in existing shaft tower reinforcement means, general using high-strength material and advanced
Materials processing moulding process, the intensity of lift structure material itself and durability, thus lift the security performance of shaft tower.Existing
Although method can lift material property, shaft tower locally occurs stress concentration or the situation of large deformation to be still unavoidable from, from
Destruction cannot thoroughly be eliminated on root occur.
Content of the invention
It is an object of the invention to provide a kind of cross arm of tower bracing means, can be come by the redistribution of rod member internal stress
Reduce cross-arm load, the problem that effectively solving transmission tower cross-arm damages under severe conditions.
The present invention adopts following technical proposals：
A kind of cross arm of tower bracing means, the shaft tower being arranged by two ends including the track being connected with slide plate slides, track
Brace fixed structure is fixed on shaft tower brace, is provided with the driving means with locking mechanism in slide plate, and slide plate is driving dress
Put driving lower edge track to move；Sled surface is hinged with one end of support bar, and the other end of support bar passes through the shaft tower horizontal stroke of setting
Load fixed structure is fixed on cross arm of tower end.
Described support bar is using the nested type expansion link with retaining mechanism.
Described driving means are using the motor being provided with electromagnetic brake brake.
The output shaft front end of described motor is provided with driving gear, the tooth phase that driving gear is arranged with raceway surface
Engagement.
Described nested type expansion link is divided into outer bar and interior bar, is provided with retaining mechanism at the opening of outer bar, and interior bar is passed through
Retaining mechanism is slidably connected with outer bar.
Described retaining mechanism adopts electronics band-type brake.
Described shaft tower brace fixed structure passes through bolt and shaft tower using the fixing chuck plate being provided with screw, fixing chuck plate
Brace is fixed.
Described cross arm of tower fixed structure passes through bolt and shaft tower using the fixing chuck plate being provided with screw, fixing chuck plate
Cross-arm is fixed.
The described top of the interior bar of nested type expansion link is hinged with slide plate upper surface.
The present invention passes through to drive the slide plate movement on track to the middle part of shaft tower brace, then utilizes locking mechanism to ensure to slide
The fixation of Board position, finally is supported to cross arm of tower forming new supporting construction using support bar, can be by stress
Redistribution so that the load of cross arm of tower is dispersed to other rod members, effectively prevent cross arm of tower under severe conditions
Damage, thus ensureing the safety of cross arm of tower.
Brief description
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the use state schematic diagram of the present invention.
Specific embodiment
Below in conjunction with drawings and Examples, the present invention is made with detailed description：
As shown in figure 1, cross arm of tower bracing means of the present invention, including the track 2 being slidably connected with slide plate 8, rail
The shaft tower brace fixed structure 1 that road 2 is arranged by two ends is fixed on shaft tower brace, is provided with locking mechanism in slide plate 8
Driving means, slide plate 8 drives lower edge track 2 mobile in driving means；Rotating shaft 4 is passed through in one end of slide plate 8 surface and support bar
Hinged, the cross arm of tower fixed structure 7 that the other end of support bar passes through to arrange is fixed on cross arm of tower end.
In the present invention, driving means can be using the motor 10 being provided with electromagnetic brake brake, to realize driving dress
The position fixation putting power-off tail skid 8 with track 2 is no longer moved.The output shaft front end of motor 10 is provided with sliding tooth
Wheel 3, the tooth that driving gear 3 is arranged with track 2 surface is meshed.Motor 10 may also be employed thering is other locking mechanisms or system
The motor of dynamic structure, as long as be capable of motor power-off rear output shaft by locked function.
In order to be supported the regulation of pole length according to actually used demand, in the present invention, support bar is using having lock
The nested type expansion link of tight mechanism 6, nested type expansion link is divided into outer bar 9 and interior bar 5, is provided with locking machine at the opening of outer bar 9
Structure 6, interior bar 5 is slidably connected with outer bar 9 by retaining mechanism 6, and that is, interior bar 5 is stretched out or entered the inner chamber of outer bar 9.Work as retaining mechanism
6 when unclamping, and interior bar 5 and outer bar 9 can be in external force（Such as gravity）In the presence of freely change, with realize support pole length from
By changing；When retaining mechanism 6 is locked, the relative position of interior bar 5 and outer bar 9 is fixed, to realize supporting the fixation of pole length.This
In invention, retaining mechanism 6 can adopt electronics band-type brake, and device that other be capable of electric control locking may also be employed.
In the present invention, shaft tower brace fixed structure 1 can be using the fixing chuck plate being provided with screw, and fixing chuck plate passes through bolt
Fix with shaft tower brace, finally realize the fixation at track 2 two ends and shaft tower brace.Cross arm of tower fixed structure 7 can be using setting
There is the fixing chuck plate of screw, fixing chuck plate is fixed with cross arm of tower by bolt.The top of the interior bar 5 of nested type expansion link is passed through
Rotating shaft 4 is hinged with slide plate 8 upper surface, and cross arm of tower fixed structure 7 and shaft tower horizontal stroke are passed through in the bottom of the outer bar 9 of nested type expansion link
Load is fixed.
As shown in Fig. 2 the present invention is when mounted, first with shaft tower brace fixed structure 1 by the first end of track 2 and
Two ends are fixed with the side a and b of shaft tower brace AB respectively, then outer bar 9 bottom of nested type expansion link are passed through cross arm of tower
The C-terminal of fixed structure 7 and cross arm of tower AC is fixed, and finally by mobile for slide plate 8 least significant end to track 2, will slide in the present embodiment
The mobile first end to track 2 of plate 8.Above-mentioned operation is the installation procedure of the present invention.
When shaft tower location runs into high wind or snowfall attacks, the load that cross arm of tower AC is born will be substantially improved,
Exist and greatly destroy risk.Now, staff control on nested type expansion link the electronics band-type brake of setting to open first so that
The length of nested type expansion link freely can change in the presence of external force；Then staff is provided with electromagnetism by control and embraces
The motor 10 of lock brake makes slide plate 8 mobile to the middle part of track 2, turns off the power supply of motor 10, in electromagnetism
In the presence of contracting brake, slide plate 8 and track 2 position keep immobilizing, and nested type stretches in slide plate 8 moving process
Bar can realize length adjust automatically according to the movement of slide plate 8 position；Finally, staff controls and arranges on nested type expansion link
Electronics band-type brake locking, so that the length of nested type expansion link is fixed.
By above-mentioned steps, the present invention can form new supporting construction to cross arm of tower AC, by stress again
It is distributed so that the load of cross arm of tower AC is dispersed to other rod members, it can be avoided that cross arm of tower AC destroys.
After high wind or snowfall terminate, staff can control the electronics band-type brake of setting on nested type expansion link to open,
The length alloing nested type expansion link freely changes in the presence of external force；Then staff is provided with electricity by control
It is first end that the motor 10 of magnetic contracting brake makes slide plate 8 re-move to the least significant end of track 2, turns off motor
10 power supply, makes slide plate 8 and track 2 position keep immobilizing in the presence of electromagnetic brake brake, is moved through in slide plate 8
In journey, nested type expansion link can realize length adjust automatically according to the movement of slide plate 8 position；Finally, staff controls nesting
The electronics band-type brake locking of setting on formula expansion link, makes the length of nested type expansion link fix.
By above-mentioned steps, can make to disappear using the supporting construction that the present invention is formed, the lotus that now cross-arm AC bears
It is loaded within its allowed band.
In sum, the present invention can the reinforcing realizing cross arm of tower based on load redistribution principle, effectively solving
The problem that transmission tower cross-arm damages under severe conditions, it is ensured that the safety of cross arm of tower, can be widely applied to various power transmission rods
Tower.
Claims (9)
1. a kind of cross arm of tower bracing means it is characterised in that：Including the track being connected with slide plate slides, track is set by two ends
The shaft tower brace fixed structure put is fixed on shaft tower brace, is provided with the driving means with locking mechanism, slide plate in slide plate
Lower edge track is driven to move in driving means；Sled surface is hinged with one end of support bar, and the other end of support bar passes through setting
Cross arm of tower fixed structure be fixed on cross arm of tower end.
2. cross arm of tower bracing means according to claim 1 it is characterised in that：Described support bar is using having locking
The nested type expansion link of mechanism.
3. cross arm of tower bracing means according to claim 2 it is characterised in that：Described driving means are using being provided with
The motor of electromagnetic brake brake.
4. cross arm of tower bracing means according to claim 3 it is characterised in that：Before the output shaft of described motor
End is provided with driving gear, and the tooth that driving gear is arranged with raceway surface is meshed.
5. the cross arm of tower bracing means according to claim 2,3 or 4 it is characterised in that：Described nested type expansion link
It is divided into outer bar and interior bar, at the opening of outer bar, is provided with retaining mechanism, interior bar is slidably connected with outer bar by retaining mechanism.
6. cross arm of tower bracing means according to claim 5 it is characterised in that：Described retaining mechanism adopts electronic embrace
Lock.
7. cross arm of tower bracing means according to claim 6 it is characterised in that：Described shaft tower brace fixed structure is adopted
With being provided with the fixing chuck plate of screw, fixing chuck plate is fixed with shaft tower brace by bolt.
8. cross arm of tower bracing means according to claim 7 it is characterised in that：Described cross arm of tower fixed structure is adopted
With being provided with the fixing chuck plate of screw, fixing chuck plate is fixed with cross arm of tower by bolt.
9. cross arm of tower bracing means according to claim 8 it is characterised in that：The interior bar of described nested type expansion link
Top hinged with slide plate upper surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510231219.7A CN104831982B (en) | 2015-05-08 | 2015-05-08 | A kind of cross arm of tower bracing means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510231219.7A CN104831982B (en) | 2015-05-08 | 2015-05-08 | A kind of cross arm of tower bracing means |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104831982A CN104831982A (en) | 2015-08-12 |
| CN104831982B true CN104831982B (en) | 2017-03-08 |
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ID=53810140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510231219.7A Active CN104831982B (en) | 2015-05-08 | 2015-05-08 | A kind of cross arm of tower bracing means |
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| Country | Link |
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| CN (1) | CN104831982B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108708619B (en) * | 2018-07-13 | 2023-09-01 | 四川省腾达电力器材制造有限公司 | Cement pole anti-falling device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201362979Y (en) * | 2009-01-16 | 2009-12-16 | 天津市电力公司 | Reinforcing structure for power transmission iron tower |
| CN202055599U (en) * | 2011-05-03 | 2011-11-30 | 国网电力科学研究院武汉南瑞有限责任公司 | Composite material tower with tooling connecting parts |
| CN202520047U (en) * | 2012-03-05 | 2012-11-07 | 浙江盛达铁塔有限公司 | Iron tower cross arm hanging frame |
| CN202913756U (en) * | 2012-10-31 | 2013-05-01 | 河南世纪通讯设备有限公司 | Connection structure of cross arm and pole tower |
| CN204782198U (en) * | 2015-05-08 | 2015-11-18 | 国网河南省电力公司电力科学研究院 | Shaft tower cross arm reinforcing apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090319235A1 (en) * | 2008-04-17 | 2009-12-24 | Maclean-Fogg Company | Fiberglass Cross Arm And Method Of Selecting Same |
-
2015
- 2015-05-08 CN CN201510231219.7A patent/CN104831982B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201362979Y (en) * | 2009-01-16 | 2009-12-16 | 天津市电力公司 | Reinforcing structure for power transmission iron tower |
| CN202055599U (en) * | 2011-05-03 | 2011-11-30 | 国网电力科学研究院武汉南瑞有限责任公司 | Composite material tower with tooling connecting parts |
| CN202520047U (en) * | 2012-03-05 | 2012-11-07 | 浙江盛达铁塔有限公司 | Iron tower cross arm hanging frame |
| CN202913756U (en) * | 2012-10-31 | 2013-05-01 | 河南世纪通讯设备有限公司 | Connection structure of cross arm and pole tower |
| CN204782198U (en) * | 2015-05-08 | 2015-11-18 | 国网河南省电力公司电力科学研究院 | Shaft tower cross arm reinforcing apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104831982A (en) | 2015-08-12 |
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