CN106229890A - Across obstacle Poling Construction protection structure - Google Patents

Across obstacle Poling Construction protection structure Download PDF

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Publication number
CN106229890A
CN106229890A CN201610604136.2A CN201610604136A CN106229890A CN 106229890 A CN106229890 A CN 106229890A CN 201610604136 A CN201610604136 A CN 201610604136A CN 106229890 A CN106229890 A CN 106229890A
Authority
CN
China
Prior art keywords
split conductor
obstacle
traction
carrying
poling construction
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.)
Pending
Application number
CN201610604136.2A
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Chinese (zh)
Inventor
尚廷东
张海霞
贾洋
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.)
ZHENGZHOU DONGCHEN TECHNOLOGY Co Ltd
Original Assignee
ZHENGZHOU DONGCHEN TECHNOLOGY 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
Publication date
Application filed by ZHENGZHOU DONGCHEN TECHNOLOGY Co Ltd filed Critical ZHENGZHOU DONGCHEN TECHNOLOGY Co Ltd
Priority to CN201610604136.2A priority Critical patent/CN106229890A/en
Publication of CN106229890A publication Critical patent/CN106229890A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/02Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
    • H02G1/04Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables for mounting or stretching

Abstract

The present invention provides a kind of across obstacle Poling Construction protection structure; it is positioned at the carrying rope above split conductor during including two ends for being arranged at the use on corresponding steel tower and bottom is positioned at the protection network below described split conductor; on carrying rope, guiding movement is equipped with mobile dolly, and mobile dolly is provided with the traction piece making mobile dolly move with traction limp for being connected with at least one in haulage cable, traction limp, split conductor.The invention provides a kind of can reduce split conductor drop potential energy across obstacle Poling Construction protection structure.

Description

Across obstacle Poling Construction protection structure
Technical field
The present invention relates to the across obstacle Poling Construction protection structure in high voltage power transmission field.
Background technology
In high voltage power transmission field, multiple steel towers are arranged at interval, need to be led to successively by split conductor by tension force construction method Cross yoke plate the most rack-mounted on each steel tower.But in actual work progress, typically encounter the barrier needing to cross over, than As said bridge, highway, railway, transmission line of electricity etc., when crossing over this kind of barrier, inadequate for the tension force avoiding tension device to provide Or owing to the suddenly disappear split conductor that causes of tension force falls the security incident caused, need to arrange corresponding safeguard structure.
As a example by Midspan sag, existing across obstacle stringing construction method is illustrated, as shown in figures 1 to 6 below: The both sides of railway 36 are disposed with left steel tower 30 and right steel tower 37, built one and cross over protective frame 35, left and right steel tower at railway On be respectively arranged with insulator chain, the insulator chain of left steel tower is provided with left coaster 1, the insulator chain of right steel tower is provided with Right coaster, when Poling Construction, tension device (not shown) hauls traction limp 31 towards moving to right by haulage cable 33 Dynamic, traction limp 31 includes that drawing head 40, the afterbody of drawing head 40 are provided with counterweight 32, haulage cable 33 and drawing head 40 Being connected, the afterbody of traction limp is provided with multiple connecting structure for bundled conductors, and each split conductor 6 is connected to the division of correspondence On conductor connecting structure, haulage cable hauls traction limp towards moving right, and each split conductor is along with traction limp is together towards the right side Mobile, counterweight plays a part to prevent drawing limp and reverses, until each split conductor is pulled through right coaster, when split conductor draws After crossing right coaster, left coaster 1, right coaster undertake the weight of split conductor 6, mount calabash 7 on the pylon of steel tower, calabash 7 Sum need to be corresponding with the number of split conductor, if such as every split conductor two calabashs 7 of needs hang, it is necessary to Pylon arranges 12 calabashs 7, correspondence split conductor 6 is sling as it is shown on figure 3, then coaster 1 is torn open by electric block Fall as shown in Figure 4, yoke plate 10 is installed to insulator chain 5 lower end as seen in figs. 5-6, then each split conductor 6 is lifted into The corresponding position of yoke plate, completes the stringing operation of split conductor.
During whole stringing, preferable state is, if tension force causes wire to fall suddenly not, can pass through Cross over protective frame and support split conductor, it is to avoid split conductor directly pounds train and related facility, but the situation of reality is, Heavier-weight and the position of split conductor are higher, and position often has tens meters high, and split conductor is fallen by the highest position, point Splitting wire and have the biggest potential energy, this potential energy is destructive to the destruction of leap protective frame, crosses over protective frame and often protects not Living, split conductor still falls to produce security incident on rail, train and related facility.
Another safeguard structure that Fig. 7 shows, this safeguard structure unlike above-mentioned safeguard structure at two steel towers Between build protection network 34, for protection network 34 crosses over protective frame relatively, position is higher, can reduce division to a certain extent The big potential energy that wire produces due to difference in height, but this reduction is also very limited amount of, and reason is, protection network can not be as far as possible Height, reason has two, first, traction limp counterweight be in hang, if protection network is very close to split conductor, Counterweight will produce abrasion to protection network, is destroyed by protection network and to draw limp hindered;Second, split conductor to During right unfolding, split conductor inevitably produces and fluctuates up and down, if protection network distance split conductor is too near, point Split wire self also can protection network be destroyed by protection network abrasion.Set up defences protecting wire net at two steel tower structure of an essay even if therefore using Scheme, still can't resolve split conductor and there is when dropping the problem of bigger potential energy, protection network or as easy as rolling off a log smashed, And cause security incident.Simultaneously as pretective acreage is excessive and guard netting large usage quantity, causes and lay and transport difficult, one As situation use cross over protective frame.
Summary of the invention
It is an object of the invention to provide a kind of split conductor that can reduce to drop the across obstacle Poling Construction of potential energy Protection structure.
To achieve these goals, the technical solution adopted in the present invention is: across obstacle Poling Construction protection structure, It is positioned at the carrying rope above split conductor during including two ends for being arranged at the use on corresponding steel tower and bottom is positioned at described point Splitting the protection network below wire, on carrying rope, guiding movement is equipped with mobile dolly, mobile dolly is provided with for traction The traction that at least one in steel wire rope, traction limp, split conductor is connected and makes mobile dolly move with traction limp Part.
Traction piece is connected with traction limp.
Traction piece includes the counterweight traction piece being connected with the counterweight of described traction limp.
Traction piece also includes the drawing head traction piece being connected with the drawing head of described traction limp.
Protection network is arranged at the middle part of described carrying rope.
Carrying rope is made up of insulant.
The two ends of carrying rope are arranged on corresponding steel tower by carrying structure, and carrying structure includes insulator chain and is arranged at The yoke plate of insulator chain lower end, on yoke plate, releasable connection has coaster, carrying rope to be connected on coaster.
The invention have the benefit that when carrying out across obstacle Poling Construction, corresponding tension device is by traction Steel wire rope, tow out strip each split conductor and are moved, and due to the interconnection function of traction piece, mobile dolly is along with traction limp one Rise mobile, owing to the position of carrying rope is fixing (fluctuation up and down that carrying Suo Buhui is random), be towed the pulling force effect of part, Even if there is the change of tension value, split conductor is also not easy to fluctuate up and down, say, that the effect limit of carrying rope and traction piece Having made the fluctuation of split conductor, split conductor the most arbitrarily fluctuates, so that it may so that protection network is as far as possible near split conductor, from And reduce the potential energy that drops of split conductor.
Further, traction piece is connected with counterweight, then counterweight is just in sagging attitude unlike prior art, This allows for protection network and can further go near split conductor, final close to or reach zero potential energy superelevation protective condition.
Accompanying drawing explanation
Fig. 1 is the structural representation of across obstacle Poling Construction in prior art of the present invention;
Structural representation when Fig. 2 is to draw limp and rotary connector underriding in Fig. 1;
Fig. 3 is the schematic diagram after each self-corresponding split conductor is sling by each calabash respectively in prior art of the present invention;
Fig. 4 is the schematic diagram after being removed by coaster in prior art;
Fig. 5 is the process schematic in prior art by split conductor lifting to yoke plate correspondence position;
Fig. 6 is the schematic diagram that coordinates that in prior art, stringing terminates rear split conductor and yoke plate, is also stringing in the present invention simultaneously After end, split conductor and yoke plate coordinates schematic diagram;
Fig. 7 is the structural representation of another across obstacle Poling Construction in prior art;
Fig. 8 is the structural representation of across obstacle Poling Construction protection structure in the present invention;
Fig. 9 is the structural representation after coaster and yoke plate are placed on insulator chain in the present invention;
Figure 10 is the schematic diagram after split conductor is placed on coaster in the present invention;
Figure 11 is by calabash, split conductor to lift process schematic to yoke plate one by one in the present invention;
Figure 12 is the schematic diagram after each split conductor all lifts to yoke plate in the present invention;
Figure 13 is the demolishing process figure of coaster in the present invention;
Figure 14 be in the present invention mobile dolly with draw limp coordinate schematic diagram.
Detailed description of the invention
Across obstacle Poling Construction protects the embodiment of structure as seen in figures 8-14: executing this across obstacle stringing Before work protection introduction about the construction, first illustrating corresponding stringing structure, stringing structure includes being arranged at rail 36 both sides Left steel tower 30 and right steel tower 37, split conductor 6 by traction limp 31 be connected with haulage cable 33, haulage cable 33 then with Corresponding tension device (not shown) is connected.In the present embodiment, the radical of split conductor is the six roots of sensation, and traction limp includes leading Leader and be arranged at the counterweight 32 of drawing head tail end, six roots of sensation split conductor is connected to draw the tail end of limp, haulage cable It is connected with the head end of drawing head.More than belong to prior art.
Across obstacle Poling Construction protection structure includes that two ends are connected on left steel tower and right steel tower by carrying structure Carrying rope 50, carrying rope is made up of insulant, and carrying rope is positioned at the top of split conductor, and carrying rope has two, and two are held Carrying rope time interval to arrange, on carrying rope, guiding movement is equipped with mobile dolly 40, and in the present invention, mobile dolly includes by gathering Front insulation Slip Hook that ethylene is made and rear insulation Slip Hook, front insulation Slip Hook is mounted on the carrying rope that position is forward, and insulate cunning afterwards Hook is installed in place on the carrying rope after resting against.The traction piece for being connected, traction piece it is provided with traction limp on mobile dolly Including the counterweight traction piece 41 being connected with the counterweight 32 of traction limp and the drawing head being connected with the drawing head of traction limp Traction piece 42, in the present embodiment, traction piece is flexible pull rope, and after counterweight is balanced hammer traction piece traction, counterweight is no longer It is in hang.
The protection network being provided above being positioned at below split conductor of corresponding institute across obstacle on carrying rope, protection network becomes U-shaped structure, a sidewall of protection network is connected on the carrying rope that position is forward, and the another one sidewall of protection network connects in place On carrying rope after resting against.Carrying structure includes insulator chain and is connected to the yoke plate of insulator chain lower end, and yoke plate 10 is by even Access node structure is connected with the lower end of insulator chain 5, and coaster 1 realizes being placed in insulator chain together with yoke plate by mounting on yoke plate The lower end of 5.Yoke plate 10 includes the yoke plate connecting hole being arranged on yoke plate 10 with the attachment structure of insulator chain 5, is arranged at insulation The U-shaped connector of substring lower end and be threaded onto U-shaped connector two side and the connecting pin 20 in yoke plate connecting hole, the coaster of coaster Frame includes rotating, for pulley 3, the installing rack 11 installed and being arranged at the crossbeam 15 of installing rack 11 upper end, crossbeam 15 one end with in peace Shelving 11 and pass through connecting pin releasable connection, the other end of crossbeam 15 is hinged with installing rack 11, and crossbeam 15 includes being positioned at yoke plate both sides Front beam slab 15-1, rear beam slab 15-2, the upper end of forward and backward beam slab is provided with breach 14 of stepping down, and insulator chain 5 is connected with yoke plate 10 Attachment structure be positioned at breach of stepping down.It is provided with down on forward and backward beam slab and convex mounts plate 12, mount to be provided with on plate and mount plate Perforation 13, mounts and forms recess of stepping down between plate and the crossbeam mounting plate both sides, thus can being used for yoke plate upper end even The position connecing split conductor allows out, does not interferes with the hoisting process of split conductor.It is provided with yoke plate perforation on yoke plate 10, hangs Dress plate perforation is coated with, in boring a hole with yoke plate, the pin that mounts realizing mounting on yoke plate by apparatus for suspension, and coaster is by mounting pin Being mounted on yoke plate 10, yoke plate is then connected to the lower end of insulator chain.The two ends of carrying rope can be directly anchored on apparatus for suspension, Can also be fixed on corresponding steel tower after angle pulley on pile warp apparatus for suspension or anchoring on the ground.
In use, being laid in by carrying rope on left steel tower and right steel tower, the procedures of establishment of carrying rope can be with split conductor Poling Construction process be similar to.Certain at span, split conductor sectional area, haulage cable, traction limp and pull strength In the case of, split conductor, traction limp and haulage cable define certain run trace, this track approximation catenary, for Conveniently it is called leap curve.Make carrying funicular curve at least parallel to crossing over curve or in corresponding point position when laying carrying rope Radius of curvature more than cross over curve radius of curvature, take into full account carrying Suo Shouli time variable elongation, held by adjustment Carry the tension force of rope, be essentially ensures that carrying rope is also subjected to certain gravity when drawing limp and moving, and so can ensure that traction When there is protection network below limp, protection network is dynamic with traction limp, protection network bottommost and traction limp keep certain away from From..
Being drawn to the right by split conductor by tension device, haulage cable and traction limp, traction limp moves right During, traction piece hauls mobile dolly and moves right the most therewith, and the Slip Hook that insulate before and after mobile dolly is sliding with corresponding carrying rope Dynamic or rolling coordinates.In the process, it is towed the pull effect of part, even if the pull strength of split conductor produces change, division Wire also will not produce and fluctuate up and down on a large scale, and counterweight is pulled to horizontal attitude the most substantially simultaneously, and protection network can to the greatest extent may be used The close split conductor of energy, the problem if dropping suddenly occurs in split conductor, owing to protection network distance split conductor is close, division Wire almost zero potential energy touch protection network, therefore protection network substantially without by impact bad, can play and well protect work With.
After split conductor is moved fully on corresponding coaster, by calabash 7, split conductor 6 is lifted to yoke plate by root The corresponding position of 10, uses two calabashs 7 once to lift a split conductor 6, calabash can be electric block also Can be bottle gouard moved by hands, when a split conductor 6 is lifted to the corresponding position of yoke plate, re-use these two calabashs under A piece split conductor lifts, and so by root six roots of sensation split conductor lifts corresponding position to yoke plate respectively, every The lifting of split conductor all uses identical calabash, thus can greatly save the number of calabash, the division not lifted Wire then continues by coaster 1 load-bearing.
Removing carrying rope subsequently, left end reclaims carrying rope, and right-hand member sends carrying rope.When two carrying ropes are to termination, will Carrying bitter end head and mobile dolly consolidation, move dolly simultaneously and lead adnexa formation loop configuration with returning to encircle six-multiple conductor total Become;Left end continues to reclaim carrying Suo Zhizhi and harvests.
Then remove coaster 1, in demolishing process, connecting pin of can dismantling, afterwards turn over crossbeam 15.
In the present invention, coaster is placed in the lower end of insulator chain together with yoke plate, and the split conductor not lifted can quilt Coaster carries, and uses less calabash just can have been lifted by root by split conductor, while saving installation cost, in high-altitude Without arranging crowded calabash in narrow installing space, facilitate whole operating process, improve installation effectiveness;Division is led Line is during by coaster lifting to yoke plate, and coaster plays the effect of insurance, even if occurring that split conductor breaks off relations with calabash, point Split wire also will not directly land but fall on coaster, it is ensured that the safety of construction;During removing coaster, each point Split wire to be limited on yoke plate without rocking by firm, do not interfere with the demolishing process of coaster.
In other embodiments of the invention: crossbeam can also be realized by bolt with the removable of installing rack;Certainly crossbeam Two ends can also be the most removable be connected with installing rack;When the attachment structure of yoke plate Yu insulator chain is positioned on the upside of crossbeam, horizontal Breach of stepping down on beam can not also set;Coaster can not also be mounted on yoke plate by mounting pin, such as crossbeam lower end Arranging the draw-in groove with yoke plate upper end shape adaptation, draw-in groove is stuck in the upper end of yoke plate, and the upper surface of yoke plate supports with the bottom land of draw-in groove Coordinate thus realize mounting of coaster;Certainly coaster can also be not attached on yoke plate, such as set on insulator chain simultaneously Put coaster attachment structure and yoke plate attachment structure, coaster is also installed on insulator chain;Coaster can also be bolted On yoke plate;The number realizing the calabash to solid conductor lifting can also is that one, three or other numbers;Supratrochlear change Can not also set to pulley, the two ends now carrying rope can be directly fixed on coaster;Certainly, the two ends of carrying rope can also It is directly fixed on corresponding steel tower;Traction piece can also is that the bar linkage structure of rigidity;Traction piece can also only include that counterweight leads Draw part or drawing head traction piece;Certainly traction piece can also be connected with split conductor or haulage cable;Mobile dolly also may be used To be coordinated with hauling rope guiding movement by road wheel.

Claims (7)

1. across obstacle Poling Construction protection structure, it is characterised in that: include that two ends are for being arranged at making on corresponding steel tower Used time is positioned at the carrying rope above split conductor and bottom is positioned at the protection network below described split conductor, carrying rope guides and moves Dynamic be equipped with mobile dolly, mobile dolly is provided with for at least in haulage cable, traction limp, split conductor Individual being connected and make the traction piece that mobile dolly moves with traction limp.
Across obstacle Poling Construction the most according to claim 1 protection structure, it is characterised in that: traction piece and tow out Plate is connected.
Across obstacle Poling Construction the most according to claim 2 protection structure, it is characterised in that: traction piece includes and institute State the counterweight traction piece that the counterweight of traction limp is connected.
Across obstacle Poling Construction the most according to claim 2 protection structure, it is characterised in that: traction piece also include with The drawing head counterweight traction piece that the drawing head of described traction limp is connected.
Across obstacle Poling Construction the most according to claim 1 protection structure, it is characterised in that: protection network is arranged at institute State the middle part of carrying rope.
Across obstacle Poling Construction the most according to claim 1 protection structure, it is characterised in that: carrying rope is by the material that insulate Material is made.
7. protect structure according to the across obstacle Poling Construction described in claim 1 ~ 6 any one, it is characterised in that: carrying The two ends of rope are arranged on corresponding steel tower by carrying structure, and carrying structure includes insulator chain and is arranged at insulator chain lower end Yoke plate, on yoke plate, releasable connection has a coaster, and carrying rope is connected on coaster.
CN201610604136.2A 2016-07-28 2016-07-28 Across obstacle Poling Construction protection structure Pending CN106229890A (en)

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Application Number Priority Date Filing Date Title
CN201610604136.2A CN106229890A (en) 2016-07-28 2016-07-28 Across obstacle Poling Construction protection structure

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Application Number Priority Date Filing Date Title
CN201610604136.2A CN106229890A (en) 2016-07-28 2016-07-28 Across obstacle Poling Construction protection structure

Publications (1)

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CN106229890A true CN106229890A (en) 2016-12-14

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109672112A (en) * 2017-10-16 2019-04-23 成都隶盈科技有限公司 A kind of construction method of tension type power line protection net
CN111455854A (en) * 2020-04-14 2020-07-28 浙江大学宁波理工学院 Semi-automatic protective shed frame used in construction of viaduct crossing railway and erection method
CN112217145A (en) * 2020-10-09 2021-01-12 中国化学工程第六建设有限公司 Stringing construction and installation process of carbon fiber composite core lead
CN112982174A (en) * 2021-03-02 2021-06-18 焦作大学 Mountain area bridge construction is with preventing device that falls

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109672112A (en) * 2017-10-16 2019-04-23 成都隶盈科技有限公司 A kind of construction method of tension type power line protection net
CN109672112B (en) * 2017-10-16 2020-09-25 温州承玥机械设备有限公司 Construction method of tension type power line protection net
CN111455854A (en) * 2020-04-14 2020-07-28 浙江大学宁波理工学院 Semi-automatic protective shed frame used in construction of viaduct crossing railway and erection method
CN112217145A (en) * 2020-10-09 2021-01-12 中国化学工程第六建设有限公司 Stringing construction and installation process of carbon fiber composite core lead
CN112982174A (en) * 2021-03-02 2021-06-18 焦作大学 Mountain area bridge construction is with preventing device that falls

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