CN204258160U - Change transmission tower insulator instrument - Google Patents

Change transmission tower insulator instrument Download PDF

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Publication number
CN204258160U
CN204258160U CN201420823005.XU CN201420823005U CN204258160U CN 204258160 U CN204258160 U CN 204258160U CN 201420823005 U CN201420823005 U CN 201420823005U CN 204258160 U CN204258160 U CN 204258160U
Authority
CN
China
Prior art keywords
card
insulator
core
screw mandrel
groove
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201420823005.XU
Other languages
Chinese (zh)
Inventor
韦国益
廖远利
毕明超
郭庆生
谭华章
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Liuzhou Power Supply Bureau of Guangxi Power Grid Co Ltd
Original Assignee
Liuzhou Power Supply Bureau of Guangxi Power Grid Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by Liuzhou Power Supply Bureau of Guangxi Power Grid Co Ltd filed Critical Liuzhou Power Supply Bureau of Guangxi Power Grid Co Ltd
Priority to CN201420823005.XU priority Critical patent/CN204258160U/en
Application granted granted Critical
Publication of CN204258160U publication Critical patent/CN204258160U/en
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Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of replacing transmission tower insulator instrument, relate to the electric device service technique field of transmission line; Comprise rear card and screw mandrel, screw mandrel is provided with handle; Rear cartoon cross screw mandrel and before link and connect; Front card comprises base and is columniform the core of the card, and base is provided with the hole for installing the core of the card and is connected with the core of the card by hold-down screw; The core of the card is provided with groove, the wall of these groove both sides is respectively equipped with breach.Length consuming time when it can solve replacing 500 kilovolt tangent tower two string side of wire first insulator, instrument carrying go up a hill difficulty, the problem of Suspension Small Angle Towers wire first insulator cannot be changed.

Description

Change transmission tower insulator instrument
Technical field
The utility model relates to the electric device service technique field of transmission line; Especially a kind of replacing transmission tower insulator instrument changed for 500 kilovolts of tangent towers two string side of wire first insulator.
Background technology
Insulator is used to support wire, and makes wire and the earth, has safe enough Distance geometry to insulate between shaft tower, has certain electrical insulation strength and mechanical strength.In transmission line runs, insulator is exposed to field, works, easily occur null value under long-term highfield, pulling force effect.Due to the characteristic of glass insulator, can from sudden and violent when there is null value.According to the voltage's distribiuting characteristic of insulator, the voltage be subject near side of wire first insulator is the highest, the easiest null value and from sudden and violent.The voltage's distribiuting of bunch of insulator can be affected there is null value in same insulator string after, promote insulator deterioration null value, when the good sheet number of insulator string does not reach security regulations, threaten transmission line safe operation, so circuit must be regularly replaced from sudden and violent insulator.
Change the service work from sudden and violent insulator, usually use special mould clamp to change.Current replacing 500kV tangent tower two string wire first insulator does not have special mould clamp, and general chain block and the kit of using completes, and there are the following problems:
When 1, using chain block and kit to change the two insulator string wire first of 500kV tangent tower, kit is many, and installation procedure is complicated, and tower head needs 1 staff, and 1 staff wanted by wire, and double cooperation completes, and consumption manpower is many, length consuming time.
2, electric power line pole tower is all in the wild, and be mostly positioned at half way up the mountain or mountain top, The distance is far and the mountain is high, chain block and kit weight, and handbarrow is gone up a hill difficulty, has tumble injury risk simultaneously.
3, use chain block kit to change insulator, need lifting lead wire stroke large.
4, change insulator in large span situation, need to do conservation treatment with tower head connecting steel wire ropes head, wire is overweight, and tower head and instrument have the risk of being out of shape, damaging.
5, for the straight line pole having small angle tower, insulator string has angle of inclination, chain block kit, cannot change two string side of wire first insulator.
Summary of the invention
The purpose of this utility model is to provide a kind of changes transmission tower insulator instrument, length consuming time when it can solve replacing 500 kilovolt tangent tower two string side of wire first insulator, instrument carrying go up a hill difficulty, the problem of Suspension Small Angle Towers wire first insulator cannot be changed.
In order to solve the problem, the technical solution adopted in the utility model is: this replacing transmission tower insulator instrument, comprises rear card and screw mandrel, described screw mandrel is provided with handle; Described rear cartoon cross described screw mandrel and before link and connect; Described front card comprises base and is columniform the core of the card, and described base is provided with the hole for installing described the core of the card; Described the core of the card is provided with groove, the wall of these groove both sides is respectively equipped with breach.
In technique scheme, more specifically scheme can also be: described groove is shape wide at the top and narrow at the bottom, and the bottom of this groove becomes skewed.
Further: described base is broad in the middle, that two is little shape, and the side opening at these base two ends has the hole for being connected with described screw mandrel.
Further: the narrow place of described groove is 26 millimeters, and wide place is 46 millimeters, and the innermost from the top to the bottom degree of depth is 80 millimeters, be 40 degree with horizontal angle of inclination bottom it.
Owing to have employed technique scheme, compared with prior art, the beneficial effect had is the utility model:
Owing to being provided with front card, when replacing 500 kilovolt tangent tower two string side of wire first insulator, do not need chain block, worked by staff's upper boom, fortune erecting tools, to tear old insulator open, fill new insulator be all that a people completes separately, and a people only needs the work that just can complete demolition, installation insulator for 30 minutes, consuming timely shortens, and the utility model is lightweight, carrying is gone up a hill very convenient.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the vertical view removing rear card and screw mandrel.
Fig. 3 is the A-A cutaway view of Fig. 1.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail:
Replacing transmission tower insulator instrument shown in Fig. 1, Fig. 2 and Fig. 3, comprises rear card 5 and screw mandrel 4, screw mandrel 4 is provided with handle 7; Rear card 5 is connected with front card 6 by screw mandrel 4; Front card 6 comprises base 1 and is columniform the core of the card 3, and base 1 is provided with the hole for installing the core of the card 3 and is connected with the core of the card 3 by hold-down screw 2; The core of the card 3 is provided with groove, the wall of these groove both sides is respectively equipped with breach.This groove is shape wide at the top and narrow at the bottom, becomes skewed bottom it.Base 1 is broad in the middle, that two is little shape, and the side opening at these base 1 two ends has the hole for being connected with screw mandrel 4.
Side of wire first insulator connected mode is: insulator, bowl head, set square.Front card 6, rear card 5 make insulator relax by tightening up screw mandrel 4, and keep stressed on the same line with insulator string, front card 6 stress point designs the bolt place at bowl head and set square.Be designed to because blocking 6 before this: the core of the card 3 adds base 1.Through measuring the Size calculation connecting gold utensil, the core of the card 3 wants fixed triangle plate and limit connecting bolt, 26 mm in width are outputed in the middle of cylindrical the core of the card 3, the gradient of 40 degree is provided with bottom it, the innermost from the top to the bottom degree of depth is the groove of 80 millimeters, conforms to the width of set square, the degree of depth, gradient.Widen 20 millimeters at the cell wall place of the opening part of the core of the card 3, make this groove form shape wide at the top and narrow at the bottom, make it to conform to the shape of bowl head.
The utility model only needs one man operation, easy for installation, when changing insulator, screw mandrel is tightened up by shake handle 7, receiving 2 centimetres after pretension more just can demolition, installation insulator, instrument is arranged on insulator and set square, stress equalization and on same straight line, reduce the risk to instrument, equipment deformed damaged.Solve the problem that cucurbit kit does not change small angle tower tangent tower wire first insulator simultaneously.The utility model kit is few, lightweight, and be convenient to mountain-climbing carrying, install, the line maintenance that completes that can be efficient, safe more changes jobs.

Claims (4)

1. change a transmission tower insulator instrument, it is characterized in that: comprise rear card (5) and screw mandrel (4), described screw mandrel (4) is provided with handle (7); Described rear card (5) is connected with front card (6) by described screw mandrel (4); Described front card (6) comprises base (1) and is columniform the core of the card (3), and described base (1) is provided with the hole for installing described the core of the card (3); (3) are provided with groove to described the core of the card, and the wall of these groove both sides is respectively equipped with breach.
2. replacing transmission tower insulator instrument according to claim 1, is characterized in that: described groove is shape wide at the top and narrow at the bottom, and the bottom of this groove becomes skewed.
3. replacing transmission tower insulator instrument according to claim 1 and 2, is characterized in that: described base (1) is broad in the middle, that two is little shape, and the side opening at this base (1) two ends has the hole for being connected with described screw mandrel (4).
4. replacing transmission tower insulator instrument according to claim 1 and 2, it is characterized in that: the narrow place of described groove is 26 millimeters, wide place is 46 millimeters, and the innermost from the top to the bottom degree of depth is 80 millimeters, is 40 degree with horizontal angle of inclination bottom it.
CN201420823005.XU 2014-12-23 2014-12-23 Change transmission tower insulator instrument Active CN204258160U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420823005.XU CN204258160U (en) 2014-12-23 2014-12-23 Change transmission tower insulator instrument

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420823005.XU CN204258160U (en) 2014-12-23 2014-12-23 Change transmission tower insulator instrument

Publications (1)

Publication Number Publication Date
CN204258160U true CN204258160U (en) 2015-04-08

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ID=52962428

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420823005.XU Active CN204258160U (en) 2014-12-23 2014-12-23 Change transmission tower insulator instrument

Country Status (1)

Country Link
CN (1) CN204258160U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105655919A (en) * 2016-03-21 2016-06-08 中国南方电网有限责任公司超高压输电公司百色局 Optical fiber composite overhead ground wire (OPGW) lifter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105655919A (en) * 2016-03-21 2016-06-08 中国南方电网有限责任公司超高压输电公司百色局 Optical fiber composite overhead ground wire (OPGW) lifter

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