CN204089120U - The connection of steel tower wire cross-arm hanging point improves structure - Google Patents
The connection of steel tower wire cross-arm hanging point improves structure Download PDFInfo
- Publication number
- CN204089120U CN204089120U CN201420558679.1U CN201420558679U CN204089120U CN 204089120 U CN204089120 U CN 204089120U CN 201420558679 U CN201420558679 U CN 201420558679U CN 204089120 U CN204089120 U CN 204089120U
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- China
- Prior art keywords
- link plate
- wire
- hanging
- hanging point
- angle steel
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Abstract
The utility model relates to the connection of a kind of steel tower wire cross-arm hanging point and improves structure, comprise two wire hanging wire angle steel, described wire hanging wire angle steel symmetry is arranged at intervals on steel tower cross-arm, being hinged with between the hanging point hole of described wire hanging wire angle steel can the UB link plate of swing, described UB link plate lower end is hinged with the PS link plate that can swing, extension to the distance between the jointed shaft center line and the jointed shaft center line of lower end of its upper end of described UB link plate is greater than the distance between the hanging point centerline hole of wire hanging wire angle steel and lower limb, the full swing angle of described PS link plate is 90 °.The utility model adopts special UB link plate, extend the length of UB link plate, the angle of oscillation of PS link plate is made to be increased to 90 °, eliminate PS link plate and clash into chance mutually with wire hanging wire angle steel, meet the requirement of all insulator angle of oscillation, and then the ability of PS link plate wind resistance power is strengthened, improve the reliability of transmission line.
Description
Technical field
The utility model relates to the connection of a kind of steel tower wire cross-arm hanging point and improves structure, belongs to electric power tower field.
Background technology
At present, under the attack of typhoon, often can there is insulator and to break the serious accident of string, broken string in the steel tower (MZ413 tower) of 220kV circuit, PS link plate is also easily badly damaged; After typhoon, the gold utensil of all fronts cross-arm hanging point is checked, find that the PS link plate at most hanging point place and ball-eye all have damage in various degree, bring great impact to the safe operation of electrical network, cause huge economic loss.
By consulting drawing data and analyzing field condition, find that the towers such as ZM33, ZM34, MZ411, MZ412, MZ413, MZ414 are under wind effect, insulator string swings back and forth, PS link plate swings thereupon, when wind pivot angle is more than 20.4 ° the calculated data of MZ413 tower (20.4 ° be), touches wire hanging wire angle steel, due to the multiple impact that swings back and forth, cause PS link plate badly damaged, the PS link plate after damage holds can't stand wire and wind load, easily causes the generation of string accident.
Therefore, be necessary to be optimized the connection gold utensil at the tower cross-arm hanging point places such as ZM33, MZ411, to prevent the safe and reliable operation affecting transmission line because PS link plate damages.
Utility model content
In order to overcome the deficiencies in the prior art, the steel tower wire cross-arm hanging point connection that technical problem to be solved in the utility model is to provide the damage of a kind of PS of preventing link plate improves structure, to ensure the safe and reliable operation of transmission line.
To achieve these goals, the technical solution of the utility model is: a kind of steel tower wire cross-arm hanging point connection improves structure, comprise two wire hanging wire angle steel, described wire hanging wire angle steel symmetry is arranged at intervals on steel tower cross-arm, being hinged with between the hanging point hole of described wire hanging wire angle steel can the UB link plate of swing, described UB link plate lower end is hinged with the PS link plate that can swing, extension to the distance between the jointed shaft center line and the jointed shaft center line of lower end of its upper end of described UB link plate is greater than the distance between the hanging point centerline hole of wire hanging wire angle steel and lower limb, the full swing angle of described PS link plate is 90 °.
Preferably, the distance between the jointed shaft center line of described UB link plate upper end and the jointed shaft center line of lower end is more than 92.5mm.
Preferably, described steel tower is MZ413 tower, and described wire hanging wire angle steel is of a size of L140 mm × 90 mm × 10mm.
Preferably, the distance between the hanging point centerline hole of described wire hanging wire angle steel and lower limb is 70mm.
Preferably, described PS link plate is PS-7 type link plate.
Compared with prior art, the utility model has the following advantages: the connection of this steel tower wire cross-arm hanging point improves structure and adopts special UB link plate, extend the length of UB link plate, the angle of oscillation of PS link plate is made to be increased to 90 °, eliminate PS link plate and clash into chance mutually with wire hanging wire angle steel, meet the requirement of all insulator angle of oscillation, and then the ability of PS link plate wind resistance power is strengthened, improve the reliability of transmission line.
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
Accompanying drawing explanation
Fig. 1 is the organigram of the utility model embodiment.
In figure: 1-wire hanging wire angle steel, 2-UB link plate, 3-PS link plate.
Embodiment
As shown in Figure 1, the connection of a kind of steel tower wire cross-arm hanging point improves structure, comprise two wire hanging wire angle steel 1, described wire hanging wire angle steel 1 symmetry is arranged at intervals on steel tower cross-arm, being hinged with between the hanging point hole of described wire hanging wire angle steel 1 can the UB link plate 2 of swing, described UB link plate 2 lower end is hinged with the PS link plate 3 that can swing, and the extension of described UB link plate 2 is to the distance H between the jointed shaft center line and the jointed shaft center line of lower end of its upper end
2be greater than the jointed shaft center line of its upper end and the distance H between the hanging point centerline hole of wire hanging wire angle steel 1 and lower limb
1, the full swing angle of described PS link plate 3 is 90 °.
For MZ413 tower steel tower: described wire hanging wire angle steel 1 is of a size of L140 mm × 90 mm × 10mm, the distance H between the hanging point centerline hole of described wire hanging wire angle steel 1 and lower limb
1for 70mm, described PS link plate 3 is PS-7 type link plate; Keep the distance H between the hanging point centerline hole of wire hanging wire angle steel 1 and lower limb
1constant, make special UB link plate 2, under the prerequisite that intensity satisfies condition, the length of UB-7 link plate can be increased to more than 92.5mm, the full swing angle θ of PS link plate 3 is made to be increased to 90 °, eliminate the chance that PS link plate 3 clashes into wire hanging wire angle steel 1 phase, meet the requirement of all insulator angle of oscillation.
The foregoing is only preferred embodiment of the present utility model, all equalizations done according to the utility model claim change and modify, and all should belong to covering scope of the present utility model.
Claims (5)
1. a steel tower wire cross-arm hanging point connection improves structure, comprise two wire hanging wire angle steel, described wire hanging wire angle steel symmetry is arranged at intervals on steel tower cross-arm, it is characterized in that: being hinged with between the hanging point hole of described wire hanging wire angle steel can the UB link plate of swing, described UB link plate lower end is hinged with the PS link plate that can swing, extension to the distance between the jointed shaft center line and the jointed shaft center line of lower end of its upper end of described UB link plate is greater than the distance between the hanging point centerline hole of wire hanging wire angle steel and lower limb, the full swing angle of described PS link plate is 90 °.
2. steel tower wire cross-arm hanging point connection according to claim 1 improves structure, it is characterized in that: the distance between the jointed shaft center line of described UB link plate upper end and the jointed shaft center line of lower end is more than 92.5mm.
3. steel tower wire cross-arm hanging point connection according to claim 1 and 2 improves structure, and it is characterized in that: described steel tower is MZ413 tower, described wire hanging wire angle steel is of a size of L140 mm × 90 mm × 10mm.
4. steel tower wire cross-arm hanging point connection according to claim 3 improves structure, it is characterized in that: the distance between the hanging point centerline hole of described wire hanging wire angle steel and lower limb is 70mm.
5. the steel tower wire cross-arm hanging point connection according to claim 1,2 or 4 improves structure, it is characterized in that: described PS link plate is PS-7 type link plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420558679.1U CN204089120U (en) | 2014-09-26 | 2014-09-26 | The connection of steel tower wire cross-arm hanging point improves structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420558679.1U CN204089120U (en) | 2014-09-26 | 2014-09-26 | The connection of steel tower wire cross-arm hanging point improves structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204089120U true CN204089120U (en) | 2015-01-07 |
Family
ID=52181792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420558679.1U Expired - Fee Related CN204089120U (en) | 2014-09-26 | 2014-09-26 | The connection of steel tower wire cross-arm hanging point improves structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN204089120U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105170790A (en) * | 2015-06-25 | 2015-12-23 | 重庆瑜煌电力设备制造有限公司 | Manufacturing method for angle iron tower hanging point hinge |
| CN105633888A (en) * | 2016-02-18 | 2016-06-01 | 成都佳美嘉科技有限公司 | Cross arm for transmission tower |
| CN114447862A (en) * | 2022-02-16 | 2022-05-06 | 广东电网有限责任公司 | Insulator chain wind deviation preventing device dangles |
-
2014
- 2014-09-26 CN CN201420558679.1U patent/CN204089120U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105170790A (en) * | 2015-06-25 | 2015-12-23 | 重庆瑜煌电力设备制造有限公司 | Manufacturing method for angle iron tower hanging point hinge |
| CN105633888A (en) * | 2016-02-18 | 2016-06-01 | 成都佳美嘉科技有限公司 | Cross arm for transmission tower |
| CN114447862A (en) * | 2022-02-16 | 2022-05-06 | 广东电网有限责任公司 | Insulator chain wind deviation preventing device dangles |
| CN114447862B (en) * | 2022-02-16 | 2024-07-12 | 广东电网有限责任公司 | Wind deflection prevention device for suspension insulator string |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 Termination date: 20210926 |