CN205178386U - 750kV overhead transmission line changes insulator chain fixture - Google Patents
750kV overhead transmission line changes insulator chain fixture Download PDFInfo
- Publication number
- CN205178386U CN205178386U CN201520986660.1U CN201520986660U CN205178386U CN 205178386 U CN205178386 U CN 205178386U CN 201520986660 U CN201520986660 U CN 201520986660U CN 205178386 U CN205178386 U CN 205178386U
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- CN
- China
- Prior art keywords
- transmission line
- overhead transmission
- fixed arm
- insulator string
- lever arm
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Abstract
The utility model belongs to the technical field of electric power, a live working overhead transmission line change insulator chain fixture is related to. The utility model adopts a technical scheme for providing a: a 750kV overhead transmission line changes insulator chain fixture, includes fixed arm 2, digging arm 6 and connecting bolt 5, is provided with transposition portion 21 and screw 4 on the fixed arm 2, is provided with the 21 assorted transposition portions 61 and screws 4 with transposition portion on the digging arm 6, transposition portion 21 and 61 centers along the transposition vertical direction in the transposition portion be provided with with connecting bolt 5 assorted screw, the one end of fixed arm 2 and digging arm 6 is connected by connecting bolt 5 with 61 transposition backs in the transposition portion through transposition portion 21, digging arm 6 can rotate around connecting bolt 5. The utility model discloses a fixture have light in weight, small, flexible operation, an advantage that does not receive that the connected mode influences etc. And it can not be general to solve the electrified two cluster tool yoke that change different connected modes of tangent tower and strain insulator tower of 750kV overhead transmission line, change technical problem such as difficulty.
Description
Technical field
The utility model belongs to technical field of electric power, relates to a kind of live line working overhead transmission line and changes insulator string jig.
Background technology
At present, the interchange 750kV circuit that overhauling company of State Grid Qinghai Electric Power Company administers comprises Silent Moon line, Hai Chaixian, shark line, the peaceful line of official etc. and amounts to 15 circuits, and total track length 2690.36km, the total radix of shaft tower is 5627 bases.Along with Qinghai Area supergrid is gone into operation on a large scale, the operation maintenance pressure of 750kV transmission line increases gradually, the equipment cycle of operation constantly increases simultaneously, the defect of the defect of equipment especially insulator highlights gradually, and the power supply reliability improving transmission line is also more and more outstanding with the contradiction eliminating transmission line equipment defect in time.In addition, because Qinghai Area geographical environment is complicated, every bar 750kV Overhead Transmission Line Construction designs, insulator is selected and gold utensil connected mode is not identical, so the insulator string connected mode of Qinghai Province 750kV overhead transmission line differs widely at present, model, kind are more, existing single I insulator string that tangent tower uses, also has two I insulator string; Existing single V insulator string, also has two V insulator string; Strain tower is all mainly the insulator of two string.And existing jig is heavy, can not be general on different circuit, and connected mode does not possess live line working operating condition, therefore, 750kV overhead transmission line replacing insulator under electrified is very difficult.
Utility model content
The purpose of this utility model is to provide a kind of 750kV overhead transmission line and changes insulator string special mould clamp, have lightweight, volume is little, flexible operation, not by advantages such as connected mode affect, solve the different connected mode of 750kV overhead transmission line electrified replacing linear tower and strain tower two insulator string jigs can not general, change the technical problems such as difficult.It is utilize leading screw and hydraulic means to combine that 750kV transmission of electricity transmission line changes insulator string special mould clamp, this jig is stuck in six-multiple conductor yoke plate maximum weighted point directly yoke plate to be mentioned together with six conductors, make insulator string reach relaxed state, change.
For achieving the above object, the technical scheme that the utility model is taked is: a kind of 750kV overhead transmission line changes insulator string jig, it is characterized in that: comprise fixed arm 2, lever arm 6 and connecting bolt 5, fixed arm 2 is provided with twisting part 1 and screw 4, lever arm 6 is provided with the twisting part 2 61 and screw 4 that match with twisting part 1; Twisting part 1 and twisting part 2 61 are provided with along the center of stranded vertical direction the screw matched with connecting bolt 5, be connected by connecting bolt 5 after fixed arm 2 is stranded with twisting part 2 61 by twisting part 1 with one end of lever arm 6, lever arm 6 can rotate around connecting bolt 5;
On described fixed arm 2, the end of twisting part 1 side arranges groove 2 24, and fixed arm 2 two ends are provided with connecting hole 31, connecting hole 32 and connecting hole 34, and it is connected with active joint or the pull-rod that insulate;
The other end that described lever arm 6 is relative with twisting part 2 61 is provided with connecting hole 33, and it is connected with active joint or the pull-rod that insulate, and the connecting hole 33 after lever arm 6 is closed on it is positioned on same central shaft with the connecting hole 32 on fixed arm 2;
Screw 4 bottom on described fixed arm 2 and lever arm 6 is concentric semicircles ring set 1 and the semicircle ring set 2 62 of screw 4, and its diameter is greater than the diameter of screw 4;
Groove 1 is provided with identical with groove 6 63, two recess width and be greater than the Breadth Maximum of Double-linkage bend 103 bottom inside described fixed arm 2 and the ring set of lever arm 6;
After described lever arm 6 is closed, retain crack between itself and fixed arm 2, the width of this crack is greater than the thickness at six division yoke plate 101 tops;
Described fixed arm 2, twisting part 1 and groove 1 are by high strength titanium alloy one-shot forming;
Described lever arm 6 is by high strength titanium alloy one-shot forming;
Described jig 102 and six is divided yoke plate 101 top annulus 104 and is directly nested by Double-linkage bend 103, with wire lifting device with the use of, whole six division yoke plates 101 are promoted together with wire, carry out the operation changing insulator string;
The outer setting groove 3 25 of fixed arm 2, groove 4 26 and groove 5 27; The outer setting groove 7 64 of lever arm 6, to alleviate the weight of whole jig.
The beneficial effects of the utility model:
(1) improve the versatility of jig: current used jig is functional more single, the jig changing I string can only be used for changing I string, and the jig changing V-type string can only change V-type string; And current jig is merely able to for changing single string, and the jig that the utility model proposes has higher versatility, only need a kind of jig just can change the insulator string of different linking mode easily, the program not only can change monolithic insulator in addition, also can be used for changing bunch of insulator, not only can change single insulator string, also can change two insulator string.In addition owing to improve the versatility of jig, decrease kind and the quantity of jig, this also facilitates keeping and the transport of jig, for our work brings great convenience.
(2) increase work efficiency: current used jig can only be used for changing single insulator string at side of wire, if two strings have insulator to break down, can only change respectively, jig also will be reinstalled in centre, wastes time and energy; And the jig designed by this project can block two insulator strings simultaneously, have in two insulator string strings and can reinstall jig during fault and just can change faulty insulator easily.
(3) assembling solving former replacing instrument is numerous and diverse, heavy, personnel's transposition is many, coefficient of safety this key issue low.Instrument is lightweight, and intensity is high, reasonable in design, and fitting operation is simple and convenient, alleviates the labour intensity of operating personnel, improves operating efficiency.
(4) power set of the jig designed by this project have employed the mode that leading screw and hydraulic means combine, and therefore can mention wire very easily when changing insulator string, much more laborsaving than the mode of traditional metal leading screw.
Accompanying drawing explanation
Fig. 1 is that the utility model overhead transmission line replacing insulator string jig and six divides yoke plate and Double-linkage bend connection diagram;
Fig. 2 is that the utility model overhead transmission line changes insulator string jig front view;
Fig. 3 is that the utility model overhead transmission line changes insulator string jig rearview;
Fig. 4 is that the utility model overhead transmission line changes insulator string jig vertical view;
Fig. 5 is that the utility model overhead transmission line replacing insulator string jig lever arm opens schematic diagram;
Fig. 6 is the schematic diagram that the fixed arm outer setting changed on insulator string jig obtains groove with the utility model overhead transmission line;
Fig. 7 is the schematic diagram of the groove changing fixed arm on insulator string jig and lever arm outer setting with the utility model overhead transmission line;
Fig. 8 changes the Double-linkage bend schematic diagram that insulator string jig is connected with the utility model overhead transmission line;
Fig. 9 is the six division yoke plate schematic diagrames that the utility model overhead transmission line changes the connection of insulator string jig;
Figure 10 is that the utility model overhead transmission line changes insulator string jig using state reference diagram.
Be labeled as in figure: six division yoke plate 101, jig 102, Double-linkage bend 103, annulus 104, fixed arm 2, twisting part 1, semicircle ring set 1, groove 1, groove 2 24, groove 3 25, groove 4 26, groove 5 27, connecting hole 31, connecting hole 32, connecting hole 33, connecting hole 34, screw 4, connecting bolt 5, lever arm 6, twisting part 2 61, semicircle ring set 2 62, groove 6 63, grooves 7 64.
Embodiment
Below in conjunction with drawings and Examples, the technical solution of the utility model is described in detail.Embodiment for illustration of the utility model, but is not used for limiting scope of the present utility model.
Embodiment 1
As shown in Figures 1 to 5,750kV overhead transmission line described in the utility model changes insulator string jig, comprise fixed arm 2, lever arm 6 and connecting bolt 5, fixed arm 2 is provided with twisting part 1 and screw 4, lever arm 6 is provided with the twisting part 2 61 and screw 4 that match with twisting part 1; Twisting part 1 and twisting part 2 61 are provided with along the center of stranded vertical direction the screw matched with connecting bolt 5, be connected by connecting bolt 5 after fixed arm 2 is stranded with twisting part 2 61 by twisting part 1 with one end of lever arm 6, lever arm 6 can rotate around connecting bolt 5; On described fixed arm 2, the end of twisting part 1 side arranges groove 2 24, and fixed arm 2 two ends are provided with connecting hole 31, connecting hole 32 and connecting hole 34, and it is connected with active joint or the pull-rod that insulate; The other end that described lever arm 6 is relative with twisting part 2 61 is provided with connecting hole 33, and it is connected with active joint or the pull-rod that insulate, and the connecting hole 33 after lever arm 6 is closed on it is positioned on same central shaft with the connecting hole 32 on fixed arm 2; Screw 4 bottom on described fixed arm 2 and lever arm 6 is concentric semicircles ring set 1 and the semicircle ring set 2 62 of screw 4, and its diameter is greater than the diameter of screw 4; Groove 1 is provided with identical with groove 6 63, two recess width and be greater than the Breadth Maximum of Double-linkage bend 103 bottom inside described fixed arm 2 and the ring set of lever arm 6; After described lever arm 6 is closed, retain crack between itself and fixed arm 2, the width of this crack is greater than the thickness at six division yoke plate 101 tops; Described fixed arm 2, twisting part 1 and groove 1 are by high strength titanium alloy one-shot forming; Described lever arm 6 is by high strength titanium alloy one-shot forming; This jig 102 and six is divided yoke plate 101 top annulus 104 and is directly nested by Double-linkage bend 103, with wire lifting device with the use of, whole six division yoke plates 101 are promoted together with wire, carry out the operation changing insulator string.
Embodiment 2
As shown in Figures 1 to 6,750kV overhead transmission line described in the utility model changes insulator string jig, comprise fixed arm 2, lever arm 6 and connecting bolt 5, fixed arm 2 is provided with twisting part 1 and screw 4, lever arm 6 is provided with the twisting part 2 61 and screw 4 that match with twisting part 1; Twisting part 1 and twisting part 2 61 are provided with along the center of stranded vertical direction the screw matched with connecting bolt 5, be connected by connecting bolt 5 after fixed arm 2 is stranded with twisting part 2 61 by twisting part 1 with one end of lever arm 6, lever arm 6 can rotate around connecting bolt 5; On described fixed arm 2, the end of twisting part 1 side arranges groove 2 24, and fixed arm 2 two ends are provided with connecting hole 31, connecting hole 32 and connecting hole 34, and it is connected with active joint or the pull-rod that insulate; The other end that described lever arm 6 is relative with twisting part 2 61 is provided with connecting hole 33, and it is connected with active joint or the pull-rod that insulate, and the connecting hole 33 after lever arm 6 is closed on it is positioned on same central shaft with the connecting hole 32 on fixed arm 2; Screw 4 bottom on described fixed arm 2 and lever arm 6 is concentric semicircles ring set 1 and the semicircle ring set 2 62 of screw 4, and its diameter is greater than the diameter of screw 4; Groove 1 is provided with identical with groove 6 63, two recess width and be greater than the Breadth Maximum of Double-linkage bend 103 bottom inside described fixed arm 2 and the ring set of lever arm 6; After described lever arm 6 is closed, retain crack between itself and fixed arm 2, the width of this crack is greater than the thickness at six division yoke plate 101 tops; Described fixed arm 2, twisting part 1 and groove 1 are by high strength titanium alloy one-shot forming; Described lever arm 6 is by high strength titanium alloy one-shot forming; This jig 102 and six is divided yoke plate 101 top annulus 104 and is directly nested by Double-linkage bend 103, with wire lifting device with the use of, whole six division yoke plates 101 are promoted together with wire, carry out the operation changing insulator string; The outer setting groove 3 25 of fixed arm 2, groove 4 26 and groove 5 27; The outer setting groove 7 64 of lever arm 6, to alleviate the weight of whole jig.
Claims (10)
1. a 750kV overhead transmission line changes insulator string jig, it is characterized in that: comprise fixed arm (2), lever arm (6) and connecting bolt (5), fixed arm (2) is provided with twisting part one (21) and screw (4), lever arm (6) is provided with the twisting part two (61) and screw (4) that match with twisting part one (21); Twisting part one (21) and twisting part two (61) are provided with along the center of stranded vertical direction the screw matched with connecting bolt (5), be connected by connecting bolt (5) after fixed arm (2) is stranded with twisting part two (61) by twisting part one (21) with one end of lever arm (6), lever arm (6) can rotate around connecting bolt (5).
2. 750kV overhead transmission line according to claim 1 changes insulator string jig, it is characterized in that: the end of the side of the upper twisting part one (21) of described fixed arm (2) arranges groove two (24), fixed arm (2) two ends are provided with connecting hole one (31), connecting hole two (32) and connecting hole four (34), and it is connected with active joint or the pull-rod that insulate.
3. 750kV overhead transmission line according to claim 1 changes insulator string jig, it is characterized in that: the other end that described lever arm (6) is relative with twisting part two (61) is provided with connecting hole three (33), it is connected with active joint or the pull-rod that insulate, and the connecting hole three (33) after lever arm (6) is closed on it is positioned on same central shaft with the connecting hole two (32) on fixed arm (2).
4. 750kV overhead transmission line according to claim 1 changes insulator string jig, it is characterized in that: screw (4) bottom on described fixed arm (2) and lever arm (6) is concentric semicircles ring set one (22) and the semicircle ring set two (62) of screw (4), and its diameter is greater than the diameter of screw (4).
5. 750kV overhead transmission line according to claim 4 changes insulator string jig, it is characterized in that: be provided with groove one (23) and groove six (63) inside described fixed arm (2) and the ring set of lever arm (6), two recess width are identical and be greater than the Breadth Maximum of Double-linkage bend (103) bottom.
6. 750kV overhead transmission line according to claim 1 changes insulator string jig, it is characterized in that: after described lever arm (6) is closed, retain crack between itself and fixed arm (2), the width of this crack is greater than the thickness at six division yoke plate (101) tops.
7. 750kV overhead transmission line according to claim 1 changes insulator string jig, it is characterized in that: described fixed arm (2), twisting part one (21) and groove one (23) are by high strength titanium alloy one-shot forming.
8. 750kV overhead transmission line according to claim 1 changes insulator string jig, it is characterized in that: described lever arm (6) is by high strength titanium alloy one-shot forming.
9. 750kV overhead transmission line according to claim 1 changes insulator string jig, it is characterized in that: described jig (102) and six is divided yoke plate (101) top annulus (104) and is directly nested by Double-linkage bend (103), with wire lifting device with the use of, whole six divisions yoke plate (101) are promoted together with wire, carries out the operation changing insulator string.
10. 750kV overhead transmission line according to claim 1 changes insulator string jig, it is characterized in that: the outer setting groove three (25) of fixed arm (2), groove four (26) and groove five (27); The outer setting groove seven (64) of lever arm (6), to alleviate the weight of whole jig.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520986660.1U CN205178386U (en) | 2015-12-02 | 2015-12-02 | 750kV overhead transmission line changes insulator chain fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520986660.1U CN205178386U (en) | 2015-12-02 | 2015-12-02 | 750kV overhead transmission line changes insulator chain fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205178386U true CN205178386U (en) | 2016-04-20 |
Family
ID=55742324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520986660.1U Expired - Fee Related CN205178386U (en) | 2015-12-02 | 2015-12-02 | 750kV overhead transmission line changes insulator chain fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205178386U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114123027A (en) * | 2021-11-24 | 2022-03-01 | 国网江苏省电力有限公司检修分公司 | Steel tube tower linear double-I-string clamp and operation method thereof |
-
2015
- 2015-12-02 CN CN201520986660.1U patent/CN205178386U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114123027A (en) * | 2021-11-24 | 2022-03-01 | 国网江苏省电力有限公司检修分公司 | Steel tube tower linear double-I-string clamp and operation method thereof |
| CN114123027B (en) * | 2021-11-24 | 2024-03-01 | 国网江苏省电力有限公司检修分公司 | Steel pipe tower straight line double-I-string clamp and operation method thereof |
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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 |
Granted publication date: 20160420 Termination date: 20171202 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |