CN207530439U - A kind of special mould clamp of charged for replacement common-tower double-return tangent tower insulator chain - Google Patents
A kind of special mould clamp of charged for replacement common-tower double-return tangent tower insulator chain Download PDFInfo
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- CN207530439U CN207530439U CN201721696979.6U CN201721696979U CN207530439U CN 207530439 U CN207530439 U CN 207530439U CN 201721696979 U CN201721696979 U CN 201721696979U CN 207530439 U CN207530439 U CN 207530439U
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- obliquely downward
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Abstract
The utility model discloses a kind of special mould clamps of charged for replacement common-tower double-return tangent tower insulator chain, belong to hot line maintenance technical field.It includes fixture（1）And screw（2）, the fixture（1）Including two arm sections obliquely downward（3）With a transverse arm section（4）Composition, two arm sections obliquely downward（3）With transverse arm section（4）Between using wearing pin bolt（5）Connection, in two arm sections obliquely downward（3）Both ends are respectively equipped with a top power bolt（9）With clamping bolt hole（10）, the screw（2）Upper end is connected with nut（6）, in nut（6）Top be connected with ratchet handle（7）, screw（2）It slots equipped with forked type lower end（8）, described forked type fluting（8）It is connected with insulation pulling plate, the transverse arm section（4）It is provided with end and the screw of concave groove（2）It is connected.The utility model has anti-deflection, the remarkable advantages such as easy to carry, easy to operate, high safety and reliability, uniform force.
Description
Technical field
The utility model belongs to hot line maintenance technical field, and in particular to one kind is suitable for 110-220kV bands
The special mould clamp of charged renewal common-tower double-return tangent tower insulator chain.
Background technology
To ensure the safe operation of electric system, transmission line of electricity is frequently necessary to overhaul.Maintenance is divided into interruption maintenance and electrification
On the one hand maintenance, interruption maintenance can cause user to have a power failure, the equipment stoppage in transit in another aspect grid can cause network not
Stablize.Livewire work can overhaul or replace element, equipment in the case where equipment does not have a power failure, and be the safety and stability of electric system
A large amount of work has been done in operation, achieves good economic benefit and social benefit.
At present hot-line insulator string replacement is carried out on 110-220kV common-tower double-returns or more times tangent tower of overhead power transmission lines
In the process, used suspension string holder is dual-purpose straight line card, with the shoulder pole fixture of adjustable screw link among the fixture of both ends, however
In real work, have the following problems：Since multiple-circuit on same tower insulator chain gold utensil group is usually that duplex list hangs form, when
When freeing a wherein insulator string, during the vertical load of transfer conducting wire, the duplex plate of connection can be in another insulator string
It deflects under the action of stress, replaces insulator to operation and bring very big difficulty.
Utility model content
For deficiencies of the prior art, the utility model provides a kind of charged for replacement common-tower double-return tangent tower
The special mould clamp of insulator chain, insulator chain is when freeing a wherein insulator string in the form of solving existing duplex list and hang, connection
Duplex plate can deflect under the action of another insulator string stress, operation not aspect, can not more renew insulator chain
Problem.
To achieve the above object, this practicality newly uses following technical proposals：A kind of charged for replacement common-tower double-return tangent tower is exhausted
The special mould clamp of edge substring, which is characterized in that including fixture and screw, the fixture includes two arm section and a transverse arms obliquely downward
Duan Zucheng, two are bolted between arm section and transverse arm section using wearing pin obliquely downward, two obliquely downward arm section both ends be respectively equipped with one
A top power bolt and clamping bolt hole, the screw upper end is connected with nut, ratchet handle, screw is connected on the top of nut
Lower end equipped with forked type slot, the forked type fluting is connected with insulation pulling plate, the transverse arm section be provided with concave groove end and
Screw is connected.
Pin bolt described in the utility model of wearing is equipped with for not threaded cylindrical bolt in the end of cylindrical bolt
One can allow the circular hole that L-shaped pin passes through.
Compared with prior art, the beneficial effects of the utility model have：
1st, suitable for carrying out replacing insulator under electrified on 110-220kV common-tower double-returns or more times tangent tower of overhead power transmission lines
String.
2nd, it is safe and reliable, cross-arm uniform force, during the vertical load of transfer conducting wire, two symmetrical arm sections obliquely downward
Design can be connected with the duplex plate of tangent tower insulator chain, therefore can effectively prevent the bigeminy during insulator is replaced
Plate deflects.
3rd, the livewire work time is reduced, significantly reduces the labor intensity of equipotential live line work personnel and the safety wind of operation
Danger；Tool installation is simple, and single pulling plate need to be only used in operation process.
Description of the drawings
Fig. 1 is the structure diagram of the utility model.
In figure, 1-fixture, 2-screw, 3-arm section obliquely downward, 4-transverse arm section, 5-wear pin bolt, 6-nut, 7-spine
Wheel handle, 8-forked type fluting, 9-top power bolt, 10-clamping bolt hole.
Specific embodiment
The utility model will be further described below with reference to the accompanying drawings.
As shown in Figure 1, a kind of personality card of charged for replacement common-tower double-return tangent tower insulator chain described in the utility model
Tool, including fixture and screw, the fixture includes two arm section and transverse arm section compositions obliquely downward, two arm section and transverse arms obliquely downward
Be bolted between section using wearing pin, two obliquely downward arm section head end set there are one top power bolt, top power bolt is used for and straight line
The yoke plate connection of tower insulator chain；Two obliquely downward arm section end set clamping bolt hole, clamping bolt hole is used for exhausted with tangent tower
Edge substring hanging plate bolt is clamped, and the aperture for being clamped bolt hole is more than insulator chain hanging plate bolt 1.5-3mm.Two symmetrical oblique
The design of underarm section can be connected with the duplex plate of tangent tower insulator chain, therefore can effectively prevent in the process for replacing insulator
Middle duplex plate deflects.The screw upper end is connected with nut, and ratchet handle is connected on the top of nut, and screw lower end is set
There is forked type fluting, forked type fluting is connected with insulation pulling plate.One insulation suspension hook of insulation pulling plate lower end connection, insulate suspension hook
For with conducting wire clasp joint.The insulation pulling plate connected by being clamped bolt with forked type fluting of arm section forms a pair of arm of force obliquely downward.
The utility model transverse arm Duan Weiyi bearing force fixtures, the concave shape of head end is convenient to be connect with arm section obliquely downward, transverse arm section
End is provided with baltimore groove, convenient to be connected with screw.
The utility model wears pin bolt as not threaded cylindrical bolt, set in the end of cylindrical bolt there are one
Circular hole is deviate to prevent from wearing pin bolt from arm section obliquely downward and transverse arm section, and circular hole is passed through using a L-shaped pin.
When electric transmission line hot-line replaces 220kV common-tower double-return tangent tower duplexs list and hangs insulator chain operation, operating procedure
It is as follows：
（1）Tower head operating personnel's climbing tower, after entering above setting insulator chain, it would be desirable to the insulator chain of replacement
Right angle hanging plate connect with yoke plate bolt anticreep pin take out, by the utility model fixture wear pin bolt take out, then will clamping
Bolt hole is stuck on yoke plate connection bolt, and two pieces arm section and yoke plate coincide clamping obliquely downward.
（2）By two pieces, the end of arm section convex form and the head end of transverse arm section concave shape are bolted, and use L with pin is worn obliquely downward
Shape pin passes through its circular hole.
（3）Ground coordinates personnel to connect the forked type fluting of screw with insulation pulling plate, one insulation of insulation pulling plate lower end connection
Suspension hook, insulation suspension hook be used for conducting wire clasp joint, and screw is placed into suitable length, tower head operation people is passed to insulation ropes
Member.
(4）The concave groove of screw and transverse arm section is clamped together by tower head operating personnel, is tightened screw by ratchet handle, is made
Insulate suspension hook and conducting wire clasp joint, until stress, and insulator chain bearing load is transferred on fixture, during which pay attention to observing each
The gold utensil stressing conditions of tie point.
（5）With the transfer of load, corresponding insulator chain soft will get off, and self-destruction insulator therein is taken out,
Under the cooperation of ground staff, new insulator is replaced with.
（6）Loose wire bar is gradually adjusted by ratchet handle, during loosening, it should be noted that slowly, and pay attention to checking insulation
The stressing conditions of substring until after stress are normal between insulator, screw and special mould clamp are removed, are transmitted to insulation ropes
Ground staff.
（7）The anticreep pin that right angle hanging plate is finally connect to bolt with yoke plate turns back to original position.Tower under the tower operator, i.e.,
It completes charged for replacement 220kV common-tower double-return tangent tower duplexs list and hangs insulator chain work operations.
Claims (2)
1. a kind of special mould clamp of charged for replacement common-tower double-return tangent tower insulator chain, which is characterized in that including fixture（1）And silk
Bar（2）, the fixture（1）Including two arm sections obliquely downward（3）With a transverse arm section（4）Composition, two arm sections obliquely downward（3）And transverse arm
Section（4）Between using wearing pin bolt（5）Connection, in two arm sections obliquely downward（3）Both ends are respectively equipped with a top power bolt（9）And card
Connecting bolt hole（10）, the screw（2）Upper end is connected with nut（6）, in nut（6）Top be connected with ratchet handle（7）,
Screw（2）It slots equipped with forked type lower end（8）, described forked type fluting（8）It is connected with insulation pulling plate, the transverse arm section（4）It opens
There are end and the screw of concave groove（2）It is connected.
2. a kind of special mould clamp of charged for replacement common-tower double-return tangent tower insulator chain according to claim 1, feature
It is, described wears pin bolt（5）For not threaded cylindrical bolt, set that there are one can allow L in the end of cylindrical bolt
The circular hole that shape pin passes through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721696979.6U CN207530439U (en) | 2017-12-08 | 2017-12-08 | A kind of special mould clamp of charged for replacement common-tower double-return tangent tower insulator chain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721696979.6U CN207530439U (en) | 2017-12-08 | 2017-12-08 | A kind of special mould clamp of charged for replacement common-tower double-return tangent tower insulator chain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207530439U true CN207530439U (en) | 2018-06-22 |
Family
ID=62578733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721696979.6U Active CN207530439U (en) | 2017-12-08 | 2017-12-08 | A kind of special mould clamp of charged for replacement common-tower double-return tangent tower insulator chain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207530439U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111404076A (en) * | 2020-03-27 | 2020-07-10 | 国网湖南省电力有限公司 | Device and method for live replacement of wire clamp of extra-high voltage transmission line |
-
2017
- 2017-12-08 CN CN201721696979.6U patent/CN207530439U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111404076A (en) * | 2020-03-27 | 2020-07-10 | 国网湖南省电力有限公司 | Device and method for live replacement of wire clamp of extra-high voltage transmission line |
| CN111404076B (en) * | 2020-03-27 | 2021-07-23 | 国网湖南省电力有限公司 | Device and method for live replacement of wire clamp of extra-high voltage transmission line |
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