CN208674744U - A kind of block system using auxiliary cross-arm spanning the transmission line - Google Patents
A kind of block system using auxiliary cross-arm spanning the transmission line Download PDFInfo
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- CN208674744U CN208674744U CN201820519035.XU CN201820519035U CN208674744U CN 208674744 U CN208674744 U CN 208674744U CN 201820519035 U CN201820519035 U CN 201820519035U CN 208674744 U CN208674744 U CN 208674744U
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Abstract
A kind of block system using auxiliary cross-arm spanning the transmission line, is related to work transmission line construction field.It is existing to implement extremely difficult across mode, it is difficult to execute.The utility model includes the fixed device of auxiliary cross-arm, wirerope main rope, main rope and block on the steel tower of power line two sides, auxiliary cross-arm is symmetrically detachably arranged at steel tower two sides, wirerope main rope is detachably fixed by the fixed device of main rope with auxiliary cross-arm and steel tower, block is set on wirerope main rope, and wirerope main rope and block are located at the top of power line.The technical program is easy for assemble or unload；In the case where the unilateral horizontal pull of maximum for assisting cross-arm to allow can bear block tension, auxiliary cross-arm can be cancelled and tossing about for steel tower lands bracing wire, solve that alpine terrain is precipitous, can not set up to toss about and land the problem of bracing wire；By using high-altitude block mode, block is more simple and convenient, and the time more saves, reduce lower section power line accompany the stopping time between, reduce the whole construction cost of block system.
Description
Technical field
The utility model relates to work transmission line construction fields more particularly to a kind of utilize to assist cross-arm spanning the transmission line
Block system.
Background technique
Currently, since landform is rugged precipitous, span is big, across range in the mountain construction of existing some power lines
Greatly, the power line height being spanned is high, the features such as, it constructs more complicated, for example, Ninghai power plant reconfiguration to Mingzhou becomes 500 kilovolts
The G8-G9 shelves of line project, while the double loop 500kV, 2 double loops 220kV totally 6 important power lines are spanned, across
More put while having problem above: for G8-G9 gear in mountain area, landform is rugged precipitous；G8-G9 span 226m, 6 electricity of leap
The line of force is distributed within the scope of 126m, and the angle of the crossing is 48 degree；The power line height being spanned is between 55-60m.In transmission line of electricity work
It is as follows for such situation analysis that several feasibilities across mode are commonly used in journey:
1, the leap mode for the line that stops is accompanied using power line, which needs 6 important lines while accompanying to stop 15 days, to electricity
Net influences too big.
2, it using the leap mode for setting up crossing frame, needs to set up the steel pipe frame of high 74 meters, 140 meters of span, wind in mountain area
Danger is too big, and expense is too high, and the current country there is no this precedent.
3, by the way of tying up crossbeam block (6) on tower body and crossing over, since crossbeam need to set bracing wire, mountain area does not have item
Part, therefore be difficult to execute.
Therefore, existing to implement across mode extremely difficult for such situation, it is difficult to execute.
Utility model content
The technical problems to be solved in the utility model and the technical assignment of proposition be prior art is carried out improve with
It improves, a kind of block system using auxiliary cross-arm spanning the transmission line is provided, for the purpose of realizing rapid construction and reduce cost.
For this purpose, the utility model takes following technical scheme.
A kind of block system using auxiliary cross-arm spanning the transmission line, the auxiliary including being set on the steel tower of power line two sides are horizontal
Load, the fixed device of more wirerope main ropes, main rope and block, the auxiliary cross-arm are symmetrically detachably arranged at each steel tower
Two sides, the wirerope main rope are detachably fixed by the fixed device of main rope with auxiliary cross-arm and steel tower realization, the envelope
Net is set on wirerope main rope, and wirerope main rope and block are located at the top of power line.Assist cross-arm can be when steel tower assembles
It installs, can individually be dismantled after engineering simultaneously, it is easy for assemble or unload, and can be reused elsewhere；Auxiliary is horizontal
The intensity of load is through design checking, the case where unilateral horizontal pull of maximum that each auxiliary cross-arm allows can bear block tension
Under, auxiliary cross-arm can be cancelled and tossing about for steel tower lands bracing wire, it is precipitous to solve alpine terrain, can not set up landing of tossing about and draw
The problem of line；Traditional whole block, block operation are replaced by using the high-altitude block mode for being set to block above power line
Simpler, swift to operate, the time more saves, and simplifies block process, greatly reduce lower section power line accompany the stopping time between, reduce
The whole construction cost of block system.
As further improving and supplementing to above-mentioned technical proposal, the utility model further includes that following supplementary technology is special
Sign.
The fixed device of the main rope includes set on ground for drawing and being tensioned being twisted and being used for for wirerope main rope
Multiple tackle arrangements of guiding steel wire rope trend, wirerope main rope by tackle arrangement turn to tower body from auxiliary cross-arm and to towers
Connection is turned again to and is twisted behind bottom.By tackle arrangement and being twisted, it may be convenient to haulage cable main rope and realize tension and
It is fixed.
The wirerope main rope quantitative range is 3 ~ 8, is symmetrical arranged by benchmark two sides of the symmetrical centre of steel tower.It is logical
Cross 3 ~ 8 wirerope be symmetrical arranged, more balanced to the load effect of steel tower and cross-arm, stability is good, quantity also enough support and
Fixed block.
The wirerope main rope totally 4, wherein 2 are set to two outer ends of auxiliary cross-arm, another 2 are set to auxiliary cross-arm
With the junction of steel tower tower body main material.By the way that 2 in 4 wirerope main ropes are set to auxiliary cross-arm and steel tower tower body main material
Junction can substantially reduce wirerope main rope to the stretching force of auxiliary cross-arm, keep an iron rake with three to six teeth and auxiliary cross-arm stress more optimized, hold
Power effect is more preferable.
The both ends of every wirerope main rope, which pass through 1 and are twisted, to be connected and fixed.It is twisted traction by two of both ends, is drawn
Fixed more convenient, for wirerope main rope due to two side-linings, balancing tension is more preferable than unilateral traction.
Each tackle arrangement include a gin block, hang steel wire set and wire safety set, gin block pass through extension
If steel wire set is fixed on auxiliary cross-arm or steel tower tower body, gin block is connected to auxiliary cross-arm or steel tower again by wire safety set
To realize insurance on tower body.Gin block is hung with can be convenient by hanging steel wire set and is connected to auxiliary cross-arm or steel tower tower
With, it realizes that insurance again connects by wire safety set, prevents wirerope main rope and run line, gin block breakage, hang
If steel wire set fracture etc. is unexpected, the power line safety of lower section charging operation can be preferably protected, safety is more preferable.
The wirerope main rope is equipped with the regulating device for adjusting wirerope main rope slackness, including the first saddle
Bolt, Wire connecting sleeve and chain block, regulating device are set to steel tower bottom.Chain block is convenient for subtleer adjusting wirerope
The rate of tension of main rope, and be connected and fixed by saddle bolt and Wire connecting sleeve realization, wirerope main rope can more be insured in iron
It prevents from running line, the power line that protection lower section is run on tower.
The block includes more block ropes, block rope is vertical with wirerope main rope and block rope between parallel set
It sets, every block rope and every wirerope main rope are to be detachably connected fixation.The block mode structure is simple, convenient for setting up,
On every wirerope main rope, while with one high-altitude personnel of driving outlet, block can be rapidly completed, when construction is greatly saved
Between and lower section power line accompany the stopping time between, reduce cost.
The block rope includes nylon rope and the main rope of abrasionproof, is equipped with more nylon ropes, Buddhist nun between the main rope of every two abrasionproofs
Dragon rope and the main rope of abrasionproof are connected and fixed by the second saddle bolt and every wirerope main rope.Pass through nylon rope and the main rope of abrasionproof
Interval use, the overall weight of block can be effectively reduced, realized and fixed with every wirerope main rope using saddle bolt, can had
Effect guarantees fixed effect and reduces cost.
Gao Du Cha≤3.6m between the wirerope main rope and lower section power line.Wirerope main rope is different at three kinds
Under stress condition, with lower section by across see the table below at a distance from power line:
| Main rope stress H | Main rope degree of speeding m | Main rope with by cross-line road minimum range m | Distance Judgment |
| 10kN | 3.8 | 9.7-3.8=5.9 | 5.9≤3.6, meet |
| 15kN | 2.5 | 9.7-2.5=7.2 | 7.2≤3.6, meet |
| 20kN | 1.9 | 9.7-1.9=7.8 | 7.8≤3.6, meet |
Conducting wire is in distraction procedure, it is desirable that must not collide with block system.Degree of speeding f of the lower phase conductor under differential tension=
W × L2/(8H), it see the table below at a distance from block system:
| Lower wire tension H | Lower wire hanging point and block distance m | Lower wire degree of speeding m | The minimum range m of lower wire and block | Distance Judgment |
| 10kN | 11.6 | 13.3 | -1.7 | - 1.7≤0, it does not meet |
| 12kN | 11.6 | 11.1 | 0.5 | 0.5≤0, meet |
| 14kN | 11.6 | 9.5 | 2.1 | 2.1≤0, meet |
It is calculated according to above, determines final control tension: wirerope main cable's tension 10kN, lower phase conductor outlet Zhang Li≤
When 12kN, it is ensured that the safe distance and conducting wire of block and power line are not collided with block.
The utility model has the advantages that
1, auxiliary cross-arm can be installed simultaneously when steel tower assembles, and can individually dismantle after engineering, installing and dismounting
It is convenient, and can be reused elsewhere.
2, assist the intensity of cross-arm through design checking, the unilateral horizontal pull of maximum that each auxiliary cross-arm allows can be born
In the case where block tension, auxiliary cross-arm can be cancelled and tossing about for steel tower lands bracing wire, it is precipitous to solve alpine terrain, can not
It sets up to toss about and lands the problem of bracing wire.
3, traditional whole block, block operation are replaced by using the high-altitude block mode for being set to block above power line
Simpler, swift to operate, the time more saves, and simplifies block process, greatly reduces accompanying between the stopping time for lower section power line.
4, the haulage cable main rope that can be convenient simultaneously realizes tension and fixation, more equal to the load effect of steel tower and cross-arm
Weighing apparatus, stability are good.
5, by hang steel wire set gin block is hung with can be convenient be connected to auxiliary cross-arm or steel tower tower body on, lead to
It crosses wire safety set and realizes that insurance again connects, prevent wirerope main rope and run line, gin block breakage, hang steel wire set
When fracture etc. is unexpected, the power line safety of lower section charging operation can be preferably protected, safety is more preferable.
6, chain block is convenient for the subtleer rate of tension for adjusting wirerope main rope, and is connected by saddle bolt with steel wire
Set realizes and is connected and fixed that can more insure wirerope main rope prevents from running on steel tower line, the power line that protection lower section is run.
7, auxiliary cross-arm is easy for assemble or unload, and can reuse；Block structure is simple, it is fast to set up speed, greatlys save
Construction time and lower section power line accompany the stopping time between, reduce construction cost.
Detailed description of the invention
Fig. 1 is the utility model spanning the transmission line schematic diagram.
Fig. 2 is wirerope main rope and the fixed device connection schematic diagram of main rope in the utility model.
Fig. 3 is the utility model block structural schematic diagram.
Fig. 4 is the utility model regulating device position view.
In figure: 1- assists cross-arm；2- wirerope main rope；3- is twisted；4- tackle arrangement；5- regulating device；6- block；401-
Gin block；402- hangs steel wire set；403- wire safety set；The first saddle bolt of 501-；502- Wire connecting sleeve；503- chain
Cucurbit；The main rope of 601- abrasionproof；602- nylon rope；The second saddle bolt of 603-.
Specific embodiment
The technical solution of the utility model is described in further detail below in conjunction with Figure of description.
As shown in Figs 1-4, a kind of block system using auxiliary cross-arm spanning the transmission line, including it is set to power line two sides iron
The fixed device of 1,4 wirerope main rope 2 of auxiliary cross-arm, main rope and block 6, auxiliary cross-arm 1 on tower are symmetrically detachably arranged at
The two sides of each steel tower, wirerope main rope 2 are detachably fixed with auxiliary cross-arm 1 and steel tower realization by the fixed device of main rope, are sealed
Net 6 is set on wirerope main rope 2, and wirerope main rope 2 and block 6 are located at the top of power line.Auxiliary cross-arm 1 can be filled in steel tower
Timing is installed simultaneously, can individually be dismantled after engineering, easy for assemble or unload, and can be reused elsewhere；It is auxiliary
Help the intensity of cross-arm 1 through design checking, the unilateral horizontal pull of maximum that each auxiliary cross-arm 1 allows can bear 6 tension of block
In the case where, auxiliary cross-arm 1 can be cancelled and tossing about for steel tower lands bracing wire, it is precipitous to solve alpine terrain, can not set up anti-
The problem of side landing bracing wire；Traditional whole block is replaced by using the high-altitude block mode for being set to block above power line,
Block operation is simpler, and swift to operate, the time more saves, and simplifies block process, greatly reduces accompanying for power line of lower section and stops
Time reduces the whole construction cost of block 6.
In order to draw and be tensioned fixed wirerope main rope 2, the fixed device of main rope includes set on ground for drawing and opening
Tight wirerope main rope 2 be twisted 3 and for guiding steel wire rope trend tackle arrangement, wirerope main rope 2 by tackle arrangement 4 from
Tower body is turned at auxiliary cross-arm 1 and to turning again to and be twisted 3 connections and fixation after tower bottom.It, can be with by tackle arrangement and being twisted 3
Convenient haulage cable main rope 2 simultaneously realizes tension and fixation, prevents wirerope main rope 2 from running line after fixed.
In order to keep an iron rake with three to six teeth and auxiliary 1 load effect of cross-arm more preferable, 2 wirerope main ropes 2 are set to the two of auxiliary cross-arm 1
Outer end, another 2 wirerope main ropes 2 are set to the junction of auxiliary cross-arm 1 and steel tower tower body main material.By 4 wirerope main ropes 2
In 2 be set to auxiliary cross-arm 1 and steel tower tower body main material junction, 2 pairs of auxiliary cross-arms 1 of wirerope main rope can be substantially reduced
Stretching force, make an iron rake with three to six teeth and auxiliary 1 stress of cross-arm it is more optimized, load effect is more preferable.
It is fixed for the ease of traction, the both ends of every wirerope main rope 2, which pass through 1 and are twisted 3, to be connected and fixed.Pass through both ends
Two be twisted 3 tractions, draw fixed more convenient, wirerope main rope 2 is due to two side-linings, and balancing tension is more than unilateral traction
It is good.
Stronger in order to make to connect, each tackle arrangement 4 includes a gin block 401, hangs steel wire set 402 and steel
Silk condom 403, gin block 401 are fixed on auxiliary cross-arm 1 or steel tower tower body by hanging steel wire set 402, wire safety
Gin block 401 is connected on auxiliary cross-arm 1 or steel tower tower body to realize insurance by set 403 again.It can by hanging steel wire set 402
It is connected on auxiliary cross-arm 1 or steel tower tower body so that easily gin block 401 is hung, is realized again by wire safety set 403
Secondary insurance connection, connection is stronger, prevents wirerope main rope 2 and runs line, 401 breakage of gin block, hangs steel wire set 402
When fracture etc. is unexpected, the power line safety of lower section charging operation can be preferably protected, safety is more preferable.
For the ease of the slackness of fine adjustments wirerope main rope 2, wirerope main rope 2 is equipped with for adjusting wirerope master
The regulating device 5 of 2 slackness of rope, including the first saddle bolt 501, Wire connecting sleeve 502 and chain block 503, regulating device 5
Set on steel tower bottom.Chain block 503 convenient for subtleer adjusting wirerope main rope 2 rate of tension, and by saddle bolt and
The realization of Wire connecting sleeve 502 is connected and fixed, and can more insure wirerope main rope 2 prevents from running on steel tower line, the operation of protection lower section
Power line.
For the ease of setting up, block 6 includes block rope, block rope is vertical with wirerope main rope 2 and block rope between it is flat
Row setting, every block rope and every wirerope main rope 2 are to be detachably connected fixation.The block mode structure is simple, is convenient for
It sets up, on every wirerope main rope 2, while with one high-altitude personnel of driving outlet, block can be rapidly completed, be greatly saved
Construction time and lower section power line accompany the stopping time between, reduce cost.
In order to reduce weight, block rope includes nylon rope 602 and the main rope 601 of abrasionproof, is set between every main rope 601 of two abrasionproofs
There are more nylon ropes 602, nylon rope 602 and the main rope 601 of abrasionproof pass through the second saddle bolt 603 and every wirerope main rope 2
It is connected and fixed.It is used by the interval of the main rope 601 of nylon rope 602 and abrasionproof, the overall weight of block 6 can be effectively reduced, used
Saddle bolt is realized with every wirerope main rope 2 and is fixed, and fixed effect can be effectively ensured and reduce cost.
In order to guarantee the safe distance of block 6 Yu power line, Gao Du Cha between wirerope main rope 2 and lower section power line≤
3.6m.Wirerope main rope 2 is under three kinds of different stress conditions, with lower section by across see the table below at a distance from power line:
| Main rope stress H | Main rope degree of speeding m | Main rope with by cross-line road minimum range m | Distance Judgment |
| 10kN | 3.8 | 9.7-3.8=5.9 | 5.9≤3.6, meet |
| 15kN | 2.5 | 9.7-2.5=7.2 | 7.2≤3.6, meet |
| 20kN | 1.9 | 9.7-1.9=7.8 | 7.8≤3.6, meet |
Conducting wire is in distraction procedure, it is desirable that must not collide with block 6.Degree of speeding f=w of the lower phase conductor under differential tension ×
L2/8H), see the table below at a distance from block 6:
| Lower wire tension H | Lower wire hanging point and block distance m | Lower wire degree of speeding m | The minimum range m of lower wire and block | Distance Judgment |
| 10kN | 11.6 | 13.3 | -1.7 | - 1.7≤0, it does not meet |
| 12kN | 11.6 | 11.1 | 0.5 | 0.5≤0, meet |
| 14kN | 11.6 | 9.5 | 2.1 | 2.1≤0, meet |
It is calculated according to above, determines final control tension: 2 tension 10kN of wirerope main rope, lower phase conductor outlet tension
When≤12kN, it is ensured that the safe distance and conducting wire of block 6 and power line are not collided with block 6.
In this example, 2 specification of wirerope main rope is 13 × 500m of φ；3 are twisted to be twisted for the 50kN bitubular；Gin block 401
Specification is 50kN；Hanging steel wire to cover 402 specifications is 13 × 1m of φ；It is 13 × 2m of φ that wire safety, which covers 403 specifications,；First saddle spiral shell
501 specification of bolt is y-12；502 specification of Wire connecting sleeve is 15 × 2m of φ；503 specification of chain block is 50kN；The main rope 601 of abrasionproof
Specification is 8.7 × 40m of φ；602 specification of nylon rope is 10 × 40m of φ；Second saddle bolt, 603 specification is y-10；Each auxiliary
The unilateral horizontal pull of the maximum that cross-arm 1 allows is 50kN, and the tension of every wirerope main rope 2 is 10kN after practical block, each
The actual loading for assisting cross-arm 1 is only 20kN；
In this example, after being computed the maximum windage yaw data of grounded-line, the length of auxiliary cross-arm 1 should be greater than 35.8m, assist
1 physical length of cross-arm is 38m > 35.8m, is met across requirement；Assist the intensity of cross-arm 1 through design checking, each auxiliary cross-arm 1
The unilateral horizontal pull of the maximum of permission is 50kN.By 2 24 × 2=48kN of maximum weighted of wirerope main rope < 50kN, stress, which meets, to be set
Meter requires.
This example installation process is as follows:
1) corresponding gin block 401 has been hung in advance on the steel tower of power line two sides；
Etc. 2) power lines of lower section 6 have a power failure after license, and unmanned plane is used to put 3 South Korea of logical 4 φ silk as messenger, after use manpower
It leads logical 3 φ, 4 enlightening Nima rope, then with 4 enlightening Nima wire saws φ of φ, 8 enlightening Nima rope, finally leads logical 13 steel of φ with 8 enlightening Nima rope of φ
Cord main rope 2.With the tension of motor-driven grinding mill control 13 wirerope main rope 2 of φ, it is desirable that with the Ju Li of lower section power line ground wire≤
3.6m；
3) when the distance controlling of 4 13 wirerope main ropes 2 of φ in place after, first by main rope after being twisted and shutting insurance at 3, then
The micromatic setting that a set of chain block containing 50kN 503 is installed at tower leg, for adjusting 2 tension and relaxation degree of wirerope main rope, and conduct
Anti- wirerope main rope 2 runs the safety measures of line, and each coaster φ 13 × 2m wire safety is finally covered 403 insurances；
4) block connection is carried out by root with 1 high-altitude personnel of driving outlet on every wirerope main rope 2, it is desirable that block rope is solid
It will not be moved on wirerope main rope 2 after fixed, both ends are netted after block and require the power line 10m at least growing lower section.
The operation of this example and daily maintenance are as follows:
1) check wirerope main rope 2 in the insurance being twisted at 3, insurance, every gin block at chain block 503 daily
The retrocessions measures such as 401 wire safety set 403；
2) check that block 6 at a distance from power line ground wire, is controlled in 3.6m or more daily；
3) phase conductor under must keep the tension of 12kN or more in distraction procedure, guarantee that conducting wire is not collided with block 6；
4) when adjusting 2 tension of wirerope main rope, it is necessary to be taken charge by scene, forbid to adjust privately without commander.
The demolishing process of this example is as follows:
1) after stringing terminates lower section power line power failure, 1 high-altitude personnel of driving outlet are used on every wirerope main rope 2,
Block rope is removed by root, then moves on at auxiliary cross-arm 1 and recycles；
2) chain block 503 removed on wirerope main rope 2 insures, and 2 tail portion of wirerope main rope connects 8 enlightening Nima of a φ
Rope, every 2 two sides of wirerope main rope are twisted 3 while starting, and recycling wirerope main rope 2, complete to wirerope main rope 2 by a loosening and a tightening
After full recycling, 8 enlightening Nima rope of great Song φ is withdrawn；
3) all Work tools such as gin block 401, the wire safety set 403 on two steel towers are removed；
4) it finally uses Φ 17.5*15m steel wire set+50kN cucurbit by lower cross-arm reinforcement on main material node, recycles lower cross
Load removes auxiliary cross-arm 1.
Using this novel leap mode, solves routine across the insurmountable problem of mode, power plant changes in Ninghai
It is connected to Mingzhou to become in the G8-G9 shelves leap of 500 KV line engineerings, achieves following remarkable result: 6 accompanying for power line are stopped
Time was down to 3 days by 15 days；Setting up steel pipe frame needs 2,700,000, only needs 160,000 using auxiliary cross-arm 1, saves and cross over expense 2,540,000,
And risk substantially reduces；Without setting bracing wire；Construction process is simple to operation；Adjustment and maintenance is convenient.
Shown in figure 1 above -4 it is a kind of using auxiliary cross-arm spanning the transmission line block system be the specific of the utility model
Embodiment has embodied the utility model in essence feature and progress, needs can be used according to actual, in the utility model
Enlightenment under, the equivalent modifications of shape, structure etc., the column in the protection scope of this programme are carried out to it.
Claims (10)
1. a kind of block system using auxiliary cross-arm spanning the transmission line, it is characterised in that: including being set to power line two sides steel tower
On auxiliary cross-arm (1), more wirerope main ropes (2), the fixed device of main rope and block (6), the auxiliary cross-arm (1) it is removable
The two sides of each steel tower are unloaded and are symmetrically set to, the wirerope main rope (2) passes through the fixed device of main rope and auxiliary cross-arm (1)
It is detachably fixed with steel tower realization, the block (6) is set on wirerope main rope (2), wirerope main rope (2) and block (6)
Positioned at the top of power line.
2. a kind of block system using auxiliary cross-arm spanning the transmission line according to claim 1, it is characterised in that: described
Main rope fixed device include being twisted (3) and for guiding steel for draw and be tensioned wirerope main rope (2) set on ground
Multiple tackle arrangements of cord trend, wirerope main rope (2) turn to tower body simultaneously at auxiliary cross-arm (1) by tackle arrangement (4)
(3) connection is turned again to and is twisted after to tower bottom.
3. a kind of block system using auxiliary cross-arm spanning the transmission line according to claim 1, it is characterised in that: described
Wirerope main rope (2) quantitative range be 3 ~ 8, be that benchmark two sides are arranged symmetrically using the symmetrical centre of steel tower.
4. a kind of block system using auxiliary cross-arm spanning the transmission line according to claim 3, it is characterised in that: described
Wirerope main rope (2) totally 4, wherein 2 be set to auxiliary cross-arm (1) two outer ends, another 2 be set to auxiliary cross-arm (1) with
The junction of steel tower tower body main material.
5. a kind of block system using auxiliary cross-arm spanning the transmission line according to claim 4, it is characterised in that: every
The both ends of wirerope main rope (2), which pass through 1 and are twisted (3), to be connected and fixed.
6. a kind of block system using auxiliary cross-arm spanning the transmission line according to claim 1, it is characterised in that: each
Tackle arrangement includes a gin block (401), hangs steel wire set (402) and wire safety set (403), gin block
(401) it is fixed on auxiliary cross-arm (1) or steel tower tower body by hanging steel wire set (402), wire safety set (403) is again by single-wheel
Coaster (401) is connected on auxiliary cross-arm (1) or steel tower tower body to realize insurance.
7. a kind of block system using auxiliary cross-arm spanning the transmission line according to claim 1, it is characterised in that: described
Wirerope main rope (2) be equipped with regulating device (5) for adjusting wirerope main rope (2) slackness, including the first saddle spiral shell
Bolt (501), Wire connecting sleeve (502) and chain block (503), regulating device (5) are set to steel tower bottom.
8. a kind of block system using auxiliary cross-arm spanning the transmission line according to claim 1, it is characterised in that: described
Block (6) include more block ropes, block rope is vertical with wirerope main rope (2) and block rope between be arranged in parallel, every
Block rope and every wirerope main rope (2) are to be detachably connected fixation.
9. a kind of block system using auxiliary cross-arm spanning the transmission line according to claim 8, it is characterised in that: described
Block rope include nylon rope (602) and the main rope (601) of abrasionproof, more nylon ropes are equipped between every main rope (601) of two abrasionproofs
(602), nylon rope (602) and the main rope (601) of abrasionproof are connected by the second saddle bolt (603) and every wirerope main rope (2)
Connect fixation.
10. a kind of block system using auxiliary cross-arm spanning the transmission line according to claim 1, it is characterised in that: institute
Gao Du Cha≤3.6m between the wirerope main rope (2) stated and lower section power line.
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| CN201820519035.XU CN208674744U (en) | 2018-04-12 | 2018-04-12 | A kind of block system using auxiliary cross-arm spanning the transmission line |
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| CN201820519035.XU CN208674744U (en) | 2018-04-12 | 2018-04-12 | A kind of block system using auxiliary cross-arm spanning the transmission line |
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| CN108512115A (en) * | 2018-04-12 | 2018-09-07 | 浙江省送变电工程有限公司 | Utilize the block system and its installation, method for dismounting of auxiliary cross-arm spanning the transmission line |
| CN111244815A (en) * | 2020-01-20 | 2020-06-05 | 广东电网能源发展有限公司 | Method for building three-phase lead net sealing protection device |
| CN114221251A (en) * | 2021-10-29 | 2022-03-22 | 中国电建集团贵州电力设计研究院有限公司 | Lapping method for iron tower wiring above live wire |
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- 2018-04-12 CN CN201820519035.XU patent/CN208674744U/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108512115A (en) * | 2018-04-12 | 2018-09-07 | 浙江省送变电工程有限公司 | Utilize the block system and its installation, method for dismounting of auxiliary cross-arm spanning the transmission line |
| CN111244815A (en) * | 2020-01-20 | 2020-06-05 | 广东电网能源发展有限公司 | Method for building three-phase lead net sealing protection device |
| CN114221251A (en) * | 2021-10-29 | 2022-03-22 | 中国电建集团贵州电力设计研究院有限公司 | Lapping method for iron tower wiring above live wire |
| CN114221251B (en) * | 2021-10-29 | 2024-01-23 | 中国电建集团贵州电力设计研究院有限公司 | Overlap joint method for iron tower wiring above electrified connection lead |
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