CN202925981U - 750kV composite material cross arm - Google Patents
750kV composite material cross arm Download PDFInfo
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- CN202925981U CN202925981U CN 201220610916 CN201220610916U CN202925981U CN 202925981 U CN202925981 U CN 202925981U CN 201220610916 CN201220610916 CN 201220610916 CN 201220610916 U CN201220610916 U CN 201220610916U CN 202925981 U CN202925981 U CN 202925981U
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Abstract
The utility model discloses a 750kV composite material cross arm which comprises two composite material tubes, two composite material insulator chains, two composite material inclined support rods, a composite material horizontal support rod and a steel hanging point device, wherein first steel sleeves of the two composite material tubes are respectively and fixedly connected with the steel hanging point device; the composite material horizontal support rod is fixedly arranged between two steel sleeve nodes of the two composite material tubes; the two ends of each composite material inclined support rod are respectively provided with a U-shaped plug board connecting piece; the U-shaped plug board connecting piece arranged at one end of each composite material inclined support rod is fixedly connected with the corresponding steel sleeve node, and the other end of the composite material inclined support rod is fixedly connected with a tower body; and the two ends of each composite material insulator chain are respectively and fixedly connected with the steel hanging point device and the tower body by a U-shaped ring connecting piece. According to the 750kV composite material cross arm, the defect of material rigidity is made up by the structural rigidity, so that the rigidity and the bearing capacity of a composite material tower are improved, and the 750kV composite material cross arm can be conveniently popularized and applied to high-voltage, ultrahigh-voltage and extra-high voltage transmission line projects.
Description
Technical field
The utility model belongs to field of electrical equipment, relates to a kind of transmission tower structure, especially relates to a kind of 750kV composite material cross arm.
Background technology
The current power transmission tower structure mainly adopts the all-steel structure, expends great deal of steel, has consumed a large amount of mineral products energy, causes the severe contamination of ecological environment.And overhead line structures adopt absolutely the all-steel structure, have the problems such as quality weight, construction transportation and operation maintenance difficulty.Simultaneously composite material due to have low-carbon (LC), energy-saving and environmental protection, high-strength, lightweight, corrosion-resistant, easy processing, designability is strong and the advantage such as good insulation preformance, become a kind of steel that replace and build one of ideal material of transmission tower structure.
Adopt composite material for promoting on the transmission tower structure, usually utilize composite material to make tower structure, at present main two classes of composite bar tower structure: the one, the single lever-type composite bar; The 2nd, adopt lattice composite material tower.The single lever-type composite bar has matured product on market at present at home, but its rigidity is little, low bearing capacity, is difficult to satisfy the requirement of the large load of voltage levels line project, has greatly limited the application of composite material in work transmission line; Rigidity is large and bearing capacity is high owing to having for lattice composite material tower, has the potentiality of applying in the work transmission line of voltage levels.But because the research difficulty is large, not yet there is Related product the domestic and international market at present.
In order to make composite material pole tower can bear larger load, the simplest and effective method is to adopt lattice composite material tower, satisfy the burden requirement of voltage levels line project by the strength and stiffness of structure self, key is to develop lattice composite material tower, simultaneously guarantee that again lattice composite material tower is safe and reliable, will be reduced to the impact of electrical network minimum.
Production technology level based on present composite material pole tower, for super-pressure or UHV transmission line, higher due to its tower height, load is larger, the possibility of using composite material in full tower scope is lower, therefore can develop the 750kV composite material cross arm, both the insulating properties of composite material can be taken full advantage of, and the low shortcoming of its rigidity can be avoided again.
The utility model content
The purpose of this utility model is to take full advantage of the insulating properties of composite material and the characteristic of high-strength light, a kind of 750kV composite material cross arm that can satisfy super-pressure or extra-high voltage actual requirement of engineering is provided, reduce construction investment, improve the electric property of transmission line of electricity.
For achieving the above object, the utility model takes following technical scheme to be achieved:
A kind of 750kV composite material cross arm comprises two composite material tubes, two composite material insulator strings, two composite material hounds, composite horizontal support bar and steel hanging point device; Composite material tube comprises first composite material cast master's material and the second composite material cast master material, and the first composite material cast master material comprises the first composite element, and the first composite element two ends are respectively equipped with the first steel sleeve and the second steel sleeve; The second composite material cast master material comprises the second composite element, and the second composite element one end is provided with the steel sleeve node, and the other end is provided with steel sleeve and cross plug board node; The steel sleeve node of the second steel sleeve of the first composite material cast master material and the second composite material cast master material is bolted to connection; The first steel sleeve of two composite material tubes all is fixedly connected with the steel hanging point device, and the steel sleeve of two composite material tubes is fixedly connected with tower body with the cross plug board node; Be fixed with the composite horizontal support bar between two steel sleeve nodes of two composite material tubes; The two ends of composite material hound are equipped with U-shaped plate connector, and the U-shaped plate connector of composite material hound one end is fixedly connected with corresponding steel sleeve node, and the other end is fixedly connected with tower body; The two ends of composite material insulator string are fixedly connected with tower body with the steel hanging point device respectively by U-shaped ring connector.
The utility model further improves and is: composite material hound and composite material insulator string all are arranged at above composite material tube, and the projection that correspondence is positioned at composite material hound, composite material insulator string and the composite material tube in the vertical direction of the same side overlaps.
The utility model further improves and is: on described composite material tube, composite material insulator string, composite material hound and composite horizontal support bar all with dodging skirt.
The utility model further improves and is: the end of composite material tube and composite material insulator string is equipped with grading ring.
The utility model further improves and is: be " A " shape after being fixedly connected with between steel hanging point device, two composite material tubes and composite horizontal support bar.
The utility model further improves and is: the material of composite material cast master material, composite material insulator string, composite material hound, composite horizontal support bar is glass fiber reinforced plastic.
The utility model further improves and is: described king-tower is the metal king-tower.
The utility model further improves and is: composite material insulator string and composite material hound that correspondence is positioned at the same side are connected in the tower body same position.
The utility model has made up the deficiency of material stiffness by the rigidity of structure, increased rigidity and the bearing capacity of composite material tower, is convenient to apply in high pressure, super-pressure and UHV transmission line engineering.
With respect to prior art, the utility model advantage is:
1, by the good insulating properties of abundant composite material, can effectively shorten cross-arm length, reduce tower height, save steel, reduce investment;
2, simple in structure, easy for installation, reliability is high;
3, low steel quantity consumption, environmental protection, energy-conservation, reduction of discharging;
4, solve windage yaw and the pollution flashover accident of transmission line of electricity, improve the line security operation level;
5, corrosion-resistant, high-low temperature resistant, stolen possibility are little, reduce the maintenance cost of circuit.
Description of drawings
Fig. 1 is the utility model 750kV composite material cross arm Facad structure figure.
Fig. 2 is the utility model 750kV composite material cross arm lower plane structure chart.
The specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing.
As Fig. 1 ~ shown in Figure 2, a kind of 750kV composite material cross arm of the utility model comprises composite material cast master material 1, two composite material insulator strings 2, two composite material hounds 3, composite horizontal support bar 10 and steel hanging point device 5.
Composite material cast master material 1 comprises two kinds of first composite material cast master's material and the second composite material cast master materials; The first composite material cast master material comprises the first composite element, and the first composite element two ends are respectively equipped with the first steel sleeve 61 and the second steel sleeve 62; The second composite material cast master material comprises the second composite element, and the second composite element one end is provided with steel sleeve node 7, and the other end is provided with steel sleeve and cross plug board node 8.The steel sleeve node 7 of the second steel sleeve 62 of the first composite material cast master material and the second composite material cast master material is bolted to connection and forms a composite material tube.
The utility model comprises two composite material tubes, and the first steel sleeve 61 of two composite material tubes all docks with steel hanging point device 5 by flange, and is bolted; Be fixed with grading ring 4 on the first steel sleeve 61.The steel sleeve of two composite material tubes is fixedly connected with the metal tower body with cross plug board node 8.Be fixed with composite horizontal support bar 10 between two steel sleeve nodes 7 of two composite material tubes.Be " A " shape after being fixedly connected with between steel hanging point device 5, two composite material tubes and composite horizontal support bar 10.
The two ends of composite material hound 3 are equipped with U-shaped plate connector, and the U-shaped plate connector of composite material hound 3 one ends is fixedly connected with corresponding steel sleeve node 7, and the other end is fixedly connected with the metal tower body.The two ends of composite material insulator string 2 are fixedly connected with the metal tower body with steel hanging point device 5 respectively by U-shaped ring connector 9, and composite material insulator string 2 is connected in metal tower body same position with composite material hound 3.
The material of composite material cast master material 1, composite material insulator string 2, composite material hound 3, composite horizontal support bar 10 is glass fiber reinforced plastic.
Steel hanging point device 5 comprises two thread gripping-boards and stiffener.
(1) composite element end coupling
The composite element end coupling is the all-steel structure, by resin, steel connector-steel bushing tubular type node, termination flange, U-shaped ring connector and U-shaped plate connector is solidified respectively to be connected to composite material cast master material, composite insulator string and composite horizontal and diagonal supporting member termination;
(2) 750kV composite material cross arm
By bolt, the composite element end coupling is connected into integral body with composite material cast master material, two composite material insulator strings, two composite material hounds, composite horizontal support bar and a cover conducting wire hanging point device, consist of lattice composite material tower.
(3) operating principle of lattice composite material tower
The 750kV composite material cross arm is a space truss system, and it is the insulation characterisitic of utilizing composite material itself, realizes the purpose of insulation, simultaneously by the sudden strain of a muscle skirt on surface, increases the creepage distance that compares of cross-arm; Improve Electric Field Distribution by grading ring.Simultaneously conductor load and cross-arm wind load are converted to the axial load of lattice composite material cross arm member, with Load Transfer to two composite material cast master's material and two composite insulators.Wherein pressure is passed to tower body by two composite material tubes; And pulling force is delivered to tower body by two composite material insulator strings; Horizontal support bar and hound can effectively reduce the length of two composite material cast members, improve its supporting capacity, realize the purpose of the large load of compound material insulation cross-arm.
Above content is in conjunction with concrete preferred embodiment further detailed description of the utility model; can not assert that the specific embodiment of the present utility model only limits to this; for the utility model person of an ordinary skill in the technical field; without departing from the concept of the premise utility; can also make some simple deduction or replace, all should be considered as belonging to the utility model and determine scope of patent protection by claims of submitting to.
Claims (8)
1. a 750kV composite material cross arm, is characterized in that, comprises two composite material tubes, two composite material insulator strings, two composite material hounds, composite horizontal support bar and steel hanging point device; Composite material tube comprises first composite material cast master's material and the second composite material cast master material, and the first composite material cast master material comprises the first composite element, and the first composite element two ends are respectively equipped with the first steel sleeve and the second steel sleeve; The second composite material cast master material comprises the second composite element, and the second composite element one end is provided with the steel sleeve node, and the other end is provided with steel sleeve and cross plug board node; The steel sleeve node of the second steel sleeve of the first composite material cast master material and the second composite material cast master material is bolted to connection; The first steel sleeve of two composite material tubes all is fixedly connected with the steel hanging point device, and the steel sleeve of two composite material tubes is fixedly connected with tower body with the cross plug board node; Be fixed with the composite horizontal support bar between two steel sleeve nodes of two composite material tubes; The two ends of composite material hound are equipped with U-shaped plate connector, and the U-shaped plate connector of composite material hound one end is fixedly connected with corresponding steel sleeve node, and the other end is fixedly connected with tower body; The two ends of composite material insulator string are fixedly connected with tower body with the steel hanging point device respectively by U-shaped ring connector.
2. 750kV composite material cross arm according to claim 1, it is characterized in that, composite material hound and composite material insulator string all are arranged at above composite material tube, and the projection that correspondence is positioned at composite material hound, composite material insulator string and the composite material tube in the vertical direction of the same side overlaps.
3. 750kV composite material cross arm according to claim 1, is characterized in that, on described composite material tube, composite material insulator string, composite material hound and composite horizontal support bar all with dodging skirt.
4. 750kV composite material cross arm according to claim 1, is characterized in that, the end of composite material tube and composite material insulator string is equipped with grading ring.
5. 750kV composite material cross arm according to claim 1, is characterized in that, is " A " shape after being fixedly connected with between steel hanging point device, two composite material tubes and composite horizontal support bar.
6. 750kV composite material cross arm according to claim 1, is characterized in that, the material of composite material cast master material, composite material insulator string, composite material hound, composite horizontal support bar is glass fiber reinforced plastic.
7. 750kV composite material cross arm according to claim 1, is characterized in that, described king-tower is the metal king-tower.
8. 750kV composite material cross arm according to claim 1, is characterized in that, composite material insulator string and composite material hound that correspondence is positioned at the same side are connected in the tower body same position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220610916 CN202925981U (en) | 2012-11-16 | 2012-11-16 | 750kV composite material cross arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220610916 CN202925981U (en) | 2012-11-16 | 2012-11-16 | 750kV composite material cross arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202925981U true CN202925981U (en) | 2013-05-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220610916 Expired - Lifetime CN202925981U (en) | 2012-11-16 | 2012-11-16 | 750kV composite material cross arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202925981U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966257A (en) * | 2012-11-16 | 2013-03-13 | 中国电力工程顾问集团西北电力设计院 | 750kV composite material cross arm |
| CN106437275A (en) * | 2015-08-13 | 2017-02-22 | 中国电力科学研究院 | Electric transmission line iron tower cross arm additional prestress strengthening method |
-
2012
- 2012-11-16 CN CN 201220610916 patent/CN202925981U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966257A (en) * | 2012-11-16 | 2013-03-13 | 中国电力工程顾问集团西北电力设计院 | 750kV composite material cross arm |
| CN102966257B (en) * | 2012-11-16 | 2015-05-27 | 中国电力工程顾问集团西北电力设计院有限公司 | 750kV composite material cross arm |
| CN106437275A (en) * | 2015-08-13 | 2017-02-22 | 中国电力科学研究院 | Electric transmission line iron tower cross arm additional prestress strengthening method |
| CN106437275B (en) * | 2015-08-13 | 2019-03-05 | 中国电力科学研究院 | A kind of reinforcement method of transmission line tower cross arm with external prestress |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: NORTHWEST ELECTRIC POWER DESIGN INSTITUTE OF CHINA Free format text: FORMER NAME: NORTHWEST ELECTRIC POWER DESIGN INSTITUTE, CHINA POWER ENGINEERING CONSULTING GROUP CORPORATION |
|
| CP03 | Change of name, title or address |
Address after: 22 No. 710075, unity South Road, hi tech Industrial Development Zone, Shaanxi, Xi'an Patentee after: NORTHWEST ELECTRIC POWER DESIGN INSTITUTE CO., LTD. OF CHINA POWER ENGINEERING CONSULTING Group Address before: 710075 Xi'an province high tech Development Zone, unity South Road, No. 22, No. Patentee before: NORTHWEST ELECTRIC POWER DESIGN INST. OF CHINA POWER ENGINEERING CONSULTING Group |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130508 |
|
| CX01 | Expiry of patent term |