CN201956623U - Overhauling tool for V-type single-string insulators of +/-660kV DC transmission line - Google Patents
Overhauling tool for V-type single-string insulators of +/-660kV DC transmission line Download PDFInfo
- Publication number
- CN201956623U CN201956623U CN2010206852676U CN201020685267U CN201956623U CN 201956623 U CN201956623 U CN 201956623U CN 2010206852676 U CN2010206852676 U CN 2010206852676U CN 201020685267 U CN201020685267 U CN 201020685267U CN 201956623 U CN201956623 U CN 201956623U
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- string
- jig
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- cross
- card
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- 239000012212 insulator Substances 0.000 title claims abstract description 36
- 230000005540 biological transmission Effects 0.000 title claims abstract description 29
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 28
- 239000010959 steel Substances 0.000 claims abstract description 28
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 10
- 239000010931 gold Substances 0.000 claims description 10
- 229910052737 gold Inorganic materials 0.000 claims description 10
- 229910000838 Al alloy Inorganic materials 0.000 description 8
- 238000009413 insulation Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 239000012211 strain insulator Substances 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Abstract
The utility model relates to an overhauling tool for a V-type single-string insulators of a +/-660kV DC transmission line. The overhauling tool comprises clamps clamped at two sides of a V-type insulator string and a tensioning device connected between the clamps; each clamp comprises a V-string upper clamp fixedly connected to hardware-fitting hanging point angle steel at the side of a tower body, an cross arm upper clamp fixedly connected to a cross arm wrapper sheet, and a single-string clamp fixedly connected to the upper side of a V-type serial-connection sheet; and the tensioning device is a combined body of a mechanical drive screw and a hydraulic device. The utility model has the advantages of reasonable structure, high integral strength and bearing force, small size, light weight, working reliability, and the like and provides a reliable guarantee for daily overhauling after safe commissioning and operation of the 660kV power transmission line.
Description
Technical field
The utility model relates to the service kit on a kind of transmission line, the service kit of the single insulator string of the V-type on particularly a kind of being used for ± 660kV DC power transmission line.
Background technology
Along with being gradually improved of China's power grid construction, extra high voltage network has become the trunk rack of China's electric power network, and this also has higher requirement for operating maintenance work.Particularly follow direct current 660kV electric pressure transmission line first Application at home, for guaranteeing the bringing normally into operation of circuit, and the problem of circuit discovery in service in time overhauled, to guarantee the safe operation of DC power transmission line, then must develop a cover and be used for the needed Work tool of circuit operating maintenance.
One of main service work content on the transmission line is exactly that the maintenance of insulator is changed, ultra-high-tension power transmission line links to each other with cross-arm by insulator mostly, insulator is divided into straight line synthetic insulator and strain insulator, and strain insulator comprises monolithic porcelain insulator and long excellent type insulator again.The single string of V-type bunch of insulator in the transmission line of direct current 660kV electric pressure, length is about 9m, be subjected to the influence of insulator string length and electric clearance, it is big that the tower head size of carrying insulator and transmission line becomes, the also corresponding increase of the vertical load of circuit, this replacing to insulator requires at aspects such as tension force, length higher requirement has just been arranged.The power transmission lines overhauling instrument of present domestic 500kV and following electric pressure is fairly perfect, but because the rising of electric pressure, the increase in power transmission line footpath, and the long increase of insulator string, these service kits can not satisfy the replacing demand far away.
The utility model content
The utility model technical issues that need to address provide the service kit of the single insulator string of a kind of being exclusively used in ± 660kV DC power transmission line V-type.
For solving the problems of the technologies described above, technical solution adopted in the utility model is:
Be used for ± service kit of the single insulator string of 660kV DC power transmission line V-type, comprise and be used to be installed on the jig of insulator string both sides and be connected in tensioning apparatus between the jig, described jig comprises and blocking on card, the cross-arm on the V string and single string jig that described tensioning apparatus is the machine driving leading screw; When changing V-type list insulator string, adopt V string to go up card on card, the cross-arm, single jig and two combining forms of overlapping tensioning apparatus of going here and there are changed, wherein fasten on the V string and be connected on the body of the tower side gold utensil hanging point angle steel, fasten on the cross-arm and be connected on the cross-arm wrapper sheet, single string jig is fixedly connected on the V-type series board, and tensioning apparatus is connected to V string on the card and single string jig and cross-arm card and list and goes here and there between the jig.
The concrete structure of card is on the described V string: card comprises V string upper plate and the V string lower plate that is positioned at body of the tower side gold utensil hanging point angle steel both sides on the V string, described V string upper plate inner face is provided with and the corresponding draw-in groove I of body of the tower side gold utensil hanging point angle steel, be hinged with steel joint I on the outer face of V string lower plate, the other end of steel joint I is provided with the pin-and-hole that is connected with tensioning apparatus, and V string upper plate is connected by bolt with the two ends of V string lower plate.
The concrete structure that blocks on the described cross-arm: card comprises on the cross-arm card main body and the hinged with it steel joint II that is connected with tensioning apparatus of being used on the cross-arm, blocks main body on the cross-arm and is provided with and cross-arm wrapper sheet connecting hole corresponding bolts hole.
The concrete structure of described single string jig: single string jig comprises that both sides are provided with single string jig main body of wing plate, the end of wing plate is provided with the pin-and-hole that connects tensioning apparatus, main body below is fixedly connected with the plate of band draw-in groove II, the bottom of plate be provided with the V-type series board on the corresponding pin-and-hole of connecting hole.
The improvement of described tensioning apparatus is: described tensioning apparatus is the machine driving leading screw and the hydraulic means that is connected by alignment pin or insulation pull-rod with machine driving leading screw one end.
Because the technological progress of having adopted technique scheme, the utility model to obtain is:
The utility model is based on a kind of check man's utensil that is exclusively used in the single insulator string of V-type on the direct current 660kV transmission line of characteristics developments such as DC power transmission line pyramidal structure, insulator string net suspension mode, lead wire and earth wire parameter, can change the insulator string of the single insulator string of V-type, have rational in infrastructure, advantages such as bulk strength is high, volume is little, light weight, reliable operation, for the safety of direct current 660kV transmission line puts into operation and postrun maintenance repair provides reliable guarantee.
Tensioning apparatus is being equipped with of machine driving leading screw and hydraulic means, be used for the folding and unfolding of idle stroke between jig, solved the slow shortcoming of transmission speed that Hydraulic Power Transmission System exists under the great machinery load, reduced the residence time of work high above the ground personnel in work high above the ground; And this kind structure has the effect of protection each other, does not promptly influence the operate as normal of another transmission mechanism when one of them lost efficacy, and has improved the reliability of work greatly; Be the assembling design of branch body structure owing to what adopt in addition, when tensioning apparatus does not use, can separately deposit, be convenient to change and safeguard.
Description of drawings
Fig. 1: the annexation figure when being the utility model work;
Fig. 2: be the structural representation of card on the V string;
Fig. 3: be the structural representation that blocks on the cross-arm;
Fig. 4: be the front view of single string jig.
Wherein: card on the 1.V string, 11.V goes here and there upper plate, and 12.V goes here and there lower plate, 13. steel joint I, 14. draw-in groove I 2. block on the cross-arm, 21. block main body on the cross-arm, 22. steel joint II, 3. single string jig, 31. single string jig main body, 32. wing plates, 33. draw-in groove II, 34. plate, 4. machine driving leading screw, 5. hydraulic means, 6.V type series board, 7. insulation pull-rod, 8. cross-arm wrapper sheet.
Embodiment
Below in conjunction with the drawings and the specific embodiments the utility model is done further to describe in detail:
Be used for ± service kit of the single insulator string of 660kV DC power transmission line V-type, comprise jig and tensioning apparatus, jig is installed on the both sides of the single insulator string of V-type, and tensioning apparatus is connected between the jig.Jig comprises on the V string and to block 2 and single string jig 3 on card 1, the cross-arm, and wherein single string jig adopts the TC4 titanium alloy material to make, and has the intensity height, plasticity is good, in light weight, volume is little, bearing capacity is high, be convenient to the characteristics of work high above the ground.
Tensioning apparatus is connected on the V string between card and the single string jig, and on the cross-arm between card and the single string jig, tensioning apparatus is the assembly of machine driving leading screw 4 and hydraulic means 5, connects by insulation pull-rod 7 between machine driving leading screw and the hydraulic means.
The utility model is used for ± when changing the single insulator string of V-type on the 660kV DC power transmission line, adopt V string to go up to block on card 1, the cross-arm 2, single jig 3 and two combining forms of overlapping tensioning apparatus of going here and there change, as shown in Figure 1.
At first, the plate 34 of single string jig 3 band draw-in groove II 33 is plugged on the top of V-type series board 6, makes connecting hole on the V-type series board 6 aim at the pin-and-hole of single string jig 3, penetrate bolt, single string jig 3 is fixed on the V-type series board 6;
Body of the tower side gold utensil hanging point angle steel is placed between V string upper plate 11 and the V string lower plate 12, the vertical end of angle steel is installed in the draw-in groove I of V string upper plate 11, with bolt V is gone here and there upper plate 11 then and fixedly connected with the two ends of V string lower plate 12;
The cross-arm wrapper sheet is plugged between two triangle aluminium alloy plates of card 2 on the cross-arm, make the pin-and-hole on the aluminium alloy plate corresponding with the connecting hole position on the cross-arm wrapper sheet, penetrate between pin-and-hole and the connecting hole with bolt then, make to fasten on the cross-arm to be connected on the cross-arm wrapper sheet;
Secondly, the assembling first cover tensioning apparatus, the steel joint I 13 that one end of hydraulic means 5 is movably connected in card 1 on the V string by bearing pin has an end of pin-and-hole, the other end of hydraulic means 5 is fixedlyed connected with an end of machine driving leading screw 4 by the insulation pull-rod, and the other end of machine driving leading screw 4 flexibly connects by the pin-and-hole of bearing pin with single string jig 3; The same then assembling second cover tensioning apparatus, one end of hydraulic means 5 is movably connected in the end that card 2 steel joint II 22 on the cross-arm have pin-and-hole by bearing pin, the other end of hydraulic means 5 is fixedlyed connected with an end of machine driving leading screw 4 by the insulation pull-rod, and the other end of machine driving leading screw 4 flexibly connects by bearing pin another pin-and-hole with single string jig 3.
Connect finish after, tighten up leading screw or primer fluid pressure device, make V string on the card and cross-arm card go here and there tensioning between the jig with single, insulator string is relaxed, no longer include tension force, can carry out the replacing of V-type list insulator string.
Claims (5)
1. be used for ± service kit of the single insulator string of 660kV DC power transmission line V-type, comprise and be used to be installed on the jig of insulator string both sides and be connected in the cover of two between jig tensioning apparatus, it is characterized in that: described jig comprises on the V string card (2) and single string jig (3) on card (1), the cross-arm, and described tensioning apparatus is the machine driving leading screw; Wherein card (1) is fixedly connected on the body of the tower side gold utensil hanging point angle steel on the V string, card (2) is fixedly connected on the cross-arm wrapper sheet on the cross-arm, single string jig (3) is fixedly connected on the V-type series board, and tensioning apparatus is connected to V string on the card and single string jig and cross-arm card and list and goes here and there between the jig.
2. the service kit of the single insulator string of according to claim 1 being used for ± 660kV DC power transmission line V-type, it is characterized in that: card (1) comprises V string upper plate (11) and the V string lower plate (12) that is positioned at body of the tower side gold utensil hanging point angle steel both sides on the described V string, described V string upper plate (11) inner face is provided with and the body of the tower side gold utensil hanging point corresponding draw-in groove I of angle steel (14), be hinged with steel joint I (13) on the outer face of V string lower plate (12), the other end of steel joint I is provided with the pin-and-hole that is connected with tensioning apparatus, and V string upper plate is connected by bolt with the two ends of V string lower plate.
3. the service kit of the single insulator string of according to claim 1 being used for ± 660kV DC power transmission line V-type, it is characterized in that: card (2) comprises and blocks main body (21) and the hinged with it steel joint II (22) that is connected with tensioning apparatus of being used on the cross-arm on the described cross-arm, blocks main body on the cross-arm and is provided with and cross-arm wrapper sheet connecting hole corresponding bolts hole.
4. the service kit of the single insulator string of according to claim 1 being used for ± 660kV DC power transmission line V-type, it is characterized in that: described single string jig (3) comprises that both sides are provided with single string jig main body (31) of wing plate (32), the end of wing plate is provided with the pin-and-hole that connects tensioning apparatus, main body below is fixedly connected with the plate (34) of band draw-in groove II (33), the bottom of plate be provided with the V-type series board on the corresponding pin-and-hole of connecting hole.
5. according to the service kit of the single insulator string of claim 1 to 4 each described being used for ± 660kV DC power transmission line V-type, it is characterized in that: described tensioning apparatus is machine driving leading screw and the hydraulic means that is connected with machine driving leading screw one end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206852676U CN201956623U (en) | 2010-12-28 | 2010-12-28 | Overhauling tool for V-type single-string insulators of +/-660kV DC transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206852676U CN201956623U (en) | 2010-12-28 | 2010-12-28 | Overhauling tool for V-type single-string insulators of +/-660kV DC transmission line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201956623U true CN201956623U (en) | 2011-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206852676U Expired - Fee Related CN201956623U (en) | 2010-12-28 | 2010-12-28 | Overhauling tool for V-type single-string insulators of +/-660kV DC transmission line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201956623U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106451237A (en) * | 2016-12-07 | 2017-02-22 | 中国南方电网有限责任公司超高压输电公司百色局 | Ultra-high-voltage transmission line strain insulator string entering and exiting operation connecting device and use method |
-
2010
- 2010-12-28 CN CN2010206852676U patent/CN201956623U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106451237A (en) * | 2016-12-07 | 2017-02-22 | 中国南方电网有限责任公司超高压输电公司百色局 | Ultra-high-voltage transmission line strain insulator string entering and exiting operation connecting device and use method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE GRID CORPORATION OF CHINA Free format text: FORMER OWNER: HEBEI POWER COMPANY ULTRA-HV TRANSMISSION + DISTRIBUTION COMPANY Effective date: 20121210 Owner name: THE MAINTENANCE BRANCH OF HEBEI ELECTRIC POWER COR Effective date: 20121210 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 050070 SHIJIAZHUANG, HEBEI PROVINCE TO: 100031 DONGCHENG, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20121210 Address after: 100031 West Chang'an Avenue, Beijing, No. 86 Patentee after: State Grid Corporation of China Patentee after: Maintenance Branch, Hebei Electric Power Co.,Ltd. Address before: 050070 Hebei city in Shijiazhuang Province, Xinhua District No. 66 Zhong Sheng Lu Patentee before: Hebei Power Company Ultra-HV Transmission & Distribution Company |
|
| 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: 20110831 Termination date: 20171228 |