CN201438617U - Electric lifting tool for linear insulator string on ZM tower - Google Patents

Electric lifting tool for linear insulator string on ZM tower Download PDF

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Publication number
CN201438617U
CN201438617U CN2009201140437U CN200920114043U CN201438617U CN 201438617 U CN201438617 U CN 201438617U CN 2009201140437 U CN2009201140437 U CN 2009201140437U CN 200920114043 U CN200920114043 U CN 200920114043U CN 201438617 U CN201438617 U CN 201438617U
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CN
China
Prior art keywords
thread
tower
lead screw
insulator string
hook
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.)
Expired - Lifetime
Application number
CN2009201140437U
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Chinese (zh)
Inventor
汪建勤
方玉群
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.)
Jinhua Electric Power Bureau
Original Assignee
Jinhua Electric Power Bureau
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
Publication date
Application filed by Jinhua Electric Power Bureau filed Critical Jinhua Electric Power Bureau
Priority to CN2009201140437U priority Critical patent/CN201438617U/en
Application granted granted Critical
Publication of CN201438617U publication Critical patent/CN201438617U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses an electric lifting tool for a linear insulator string on a ZM tower. The electric lifting tool comprises a T-shaped clamp, an insulating pull rod, a straining screw rod and a quadrifid wire hook which are sequentially connected, wherein the straining screw rod is in screw thread fit with the quadrifid wire hook; an adjustable wrench is arranged on the straining screw rod; and a pair of upper hooks and a pair of lower hooks are arranged on the quadrifid wire hook. In the utility model, the lifting tool adopts the novel T-shaped clamp which passes through two angle steel on a side phase cross arm of the ZM tower and is directly connected with the insulating pull rod, the straining screw rod is arranged at the wire end and is fastened by the equipotential operating personnel, the problem of not enough operating safe distance of the screw rod on the cross arm is solved, and the lifting tool is applicable to various types of ZM towers.

Description

The charged lifting instrument of ZM tower straight line insulator string
Technical field
The utility model relates to electric power system online assignment Work tool, specifically a kind of charged lifting instrument of 500kV circuit ZM tower straight line insulator string that is applicable to.
Background technology
In the 500kV circuit, the ZM type tower cross-arm end of generic linear double, wineglass type tower and the design of other designing institute is generally carried on the back dorsad by two blocks of angle steel and is combined, and the distance between two blocks of angle steel has 60-100mm approximately.General charged for replacement tangent tower insulator lifting instrument comprises dop, thread-tightening lead screw, insulated tension pole and conductors on quad bundled hook at present, adopt between dop and the thread-tightening lead screw and be threaded, described four line hooks are provided with the adjusting spanner by being made up of a pair of upward hook and a pair of lower draw-bar on thread-tightening lead screw.During operation, dop is fixed on described two blocks of angle steel, with the conductors on quad bundled hook go up hook and lower draw-bar hooks lead, rotate then and regulate spanner, make unidirectional rotation of thread-tightening lead screw and rising, thereby drive upwards lifting of live wire.The lifting instrument of this structure because thread-tightening lead screw and coupling assembling thereof must pass the space between described two blocks of angle steel, thereby is not suitable for the less tower in gap between two blocks of angle steel.
At present, ZM type towers such as ZM1b, ZM2a, ZM5 are Eastern China Electric Power Design Inst. and Zhejiang Province Power Design Institute based on the special demands of East China Power Grid and Zhejiang electrical network and the tower of independent design, have the tower structure stability under loading, be suitable for various orographic conditions, save the circuit corridor, shaft tower is exhaled high distinguishing feature.For strengthening the stability under loading of the type shaft tower limit phase cross-arm, its limit phase cross-arm adopts two blocks of reinforced steel plates of solid (channel-section steel) to combine, clearance distance between two block plates only is 10mm, and this structural design has been improved the stressing conditions of cross-arm overhang insulation substring connecting portion to a great extent.Obviously, existing lifting instrument is not suitable for the iron tower of ZM types such as ZM1b, ZM2a, ZM5.And at present in the 500kV of Jinhua, Zhejiang Province power administration overhead line structures, ZM types such as ZM1b in service, ZM2a, ZM5 have base more than 400 altogether, account for about 20% of total shaft tower quantity.
Summary of the invention
To be solved in the utility model is the problems referred to above that prior art exists, and aims to provide a kind of charged lifting instrument of insulator string of novelty, to be fit to the needs of various ZM towers.
The technical scheme that addresses the above problem employing is: the charged lifting instrument of ZM tower straight line insulator string, comprise the T word dop, insulated tension pole, thread-tightening lead screw and the conductors on quad bundled hook that connect successively, threaded engagement between described thread-tightening lead screw and the thread hook, thread-tightening lead screw is provided with the adjusting spanner, and described conductors on quad bundled hook is provided with a pair of hook and a pair of lower draw-bar gone up.
Lifting instrument of the present utility model, directly link to each other with insulated tension pole by adopting novel T word dop to pass ZM tower limit two blocks of angle steel of phase cross-arm, insulated tension pole lead side connects the stringing leading screw, thereby the stringing leading screw is installed in conductor wire end, be responsible for fastening by the equal potential working personnel, solve leading screw and on cross-arm, operated the not enough problem of safe distance, and be fit to various ZM towers.
Further improve as the utility model, described adjusting spanner adopts the admission mode to be connected with thread-tightening lead screw.Described thread-tightening lead screw is provided with adjusting nut, adopts the pawl-and-gearing mode to cooperate between described adjusting spanner and the adjusting nut.
Further improve again as the utility model, be coupling between described base and the lower draw-bar, make between lower draw-bar and the lead be connected more convenient.
Further improve as the utility model, described insulated tension pole bottom is provided with a metal cap, described metal cap can be around the comprehensive rotation of the central shaft of insulated tension pole, and is coupling with thread-tightening lead screw, and insulated tension pole can arbitrarily not rotate when operating like this.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation after the utility model promotes.
Embodiment
With reference to Fig. 1, the charged lifting instrument of ZM tower straight line insulator string, comprise the T word dop 1, insulated tension pole 2, thread-tightening lead screw 4 and the base 5 that connect successively, threaded engagement between described thread-tightening lead screw 4 and the conductors on quad bundled hook 5, thread-tightening lead screw 4 is provided with regulates spanner 9, and described conductors on quad bundled hook 5 is provided with a pair of hook 6 and a pair of lower draw-bar 7 gone up.Be coupling between described conductors on quad bundled hook 5 and the lower draw-bar 7.
Described adjusting spanner 9 and thread-tightening lead screw 4 adopts the admission modes to be connected, and described thread-tightening lead screw 4 is provided with adjusting nut 8, and employing pawl-and-gearing mode cooperates between described adjusting spanner 9 and the adjusting nut 8.
Described insulated tension pole 2 bottoms are provided with a metal cap 3, and described metal cap 3 can be around the comprehensive rotation of the central shaft of insulated tension pole 2, and are coupling with thread-tightening lead screw 4.
Operating process of the present utility model is as follows: T word dop is passed ZM tower limit two blocks of angle steel of phase cross-arm directly link to each other with insulated tension pole 2, to go up hook 6 and lower draw-bar 7 and hook lead, come back rotation to regulate spanner 9 then, make the unidirectional rotation of thread-tightening lead screw, upwards promote thereby drive conductors on quad bundled hook 5 and live wire, as shown in Figure 2.
What should be understood that is: the foregoing description is just to explanation of the present utility model, rather than to restriction of the present utility model, any innovation and creation that do not exceed in the utility model connotation scope all fall within the protection range of the present utility model.

Claims (5)

1.ZM the charged lifting instrument of tower straight line insulator string, comprise and connect T word dop (1), insulated tension pole (2), thread-tightening lead screw (4) and conductors on quad bundled hook (5) successively, threaded engagement between described thread-tightening lead screw (4) and the conductors on quad bundled hook (5), thread-tightening lead screw (4) is provided with regulates spanner (9), and described conductors on quad bundled hook (5) is provided with a pair of hook (6) and a pair of lower draw-bar (7) gone up.
2. the charged lifting instrument of ZM tower straight line insulator string as claimed in claim 1 is characterized in that described T word dop (1) is fixed on the cross-arm head, and described adjusting spanner (9) adopts the admission mode to be connected with thread-tightening lead screw (4).
3. the charged lifting instrument of ZM tower straight line insulator string as claimed in claim 2 is characterized in that described thread-tightening lead screw (4) is provided with adjusting nut (8), adopts the pawl-and-gearing mode to cooperate between described adjusting spanner (9) and the adjusting nut (8).
4. the charged lifting instrument of ZM tower straight line insulator string as claimed in claim 1 is characterized in that being coupling between described conductors on quad bundled hook (5) and the lower draw-bar (7).
5. as the charged lifting instrument of any one described ZM tower straight line insulator string of claim 1-4, it is characterized in that described insulated tension pole (2) bottom is provided with a metal cap (3), described metal cap (3) can be around the comprehensive rotation of central shaft of insulated tension pole (2), and is coupling with thread-tightening lead screw (4).
CN2009201140437U 2009-02-19 2009-02-19 Electric lifting tool for linear insulator string on ZM tower Expired - Lifetime CN201438617U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009201140437U CN201438617U (en) 2009-02-19 2009-02-19 Electric lifting tool for linear insulator string on ZM tower

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009201140437U CN201438617U (en) 2009-02-19 2009-02-19 Electric lifting tool for linear insulator string on ZM tower

Publications (1)

Publication Number Publication Date
CN201438617U true CN201438617U (en) 2010-04-14

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009201140437U Expired - Lifetime CN201438617U (en) 2009-02-19 2009-02-19 Electric lifting tool for linear insulator string on ZM tower

Country Status (1)

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CN (1) CN201438617U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104078877A (en) * 2013-03-28 2014-10-01 国家电网公司 Six-hook clip used for hoisting power transmission line
CN104158118A (en) * 2014-08-08 2014-11-19 国家电网公司 Quad-bundled conductor protection hook
CN104821513A (en) * 2015-05-08 2015-08-05 杨瑞亮 Pulley hanging bracket for changing tension insulator
CN108183426A (en) * 2017-12-22 2018-06-19 国家电网公司 Suitable for the service kit of ± 660kV circuits

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104078877A (en) * 2013-03-28 2014-10-01 国家电网公司 Six-hook clip used for hoisting power transmission line
CN104158118A (en) * 2014-08-08 2014-11-19 国家电网公司 Quad-bundled conductor protection hook
CN104158118B (en) * 2014-08-08 2016-09-07 国家电网公司 A kind of conductors on quad bundled protects line hook
CN104821513A (en) * 2015-05-08 2015-08-05 杨瑞亮 Pulley hanging bracket for changing tension insulator
CN104821513B (en) * 2015-05-08 2017-05-10 国网山东省电力公司滨州供电公司 Pulley hanging bracket for changing tension insulator
CN108183426A (en) * 2017-12-22 2018-06-19 国家电网公司 Suitable for the service kit of ± 660kV circuits

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GR01 Patent grant
CX01 Expiry of patent term
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Granted publication date: 20100414