CN110805353A - Method for erecting power transmission tower by using combined electric holding pole - Google Patents
Method for erecting power transmission tower by using combined electric holding pole Download PDFInfo
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- CN110805353A CN110805353A CN201910931979.7A CN201910931979A CN110805353A CN 110805353 A CN110805353 A CN 110805353A CN 201910931979 A CN201910931979 A CN 201910931979A CN 110805353 A CN110805353 A CN 110805353A
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- tower section
- tower
- power transmission
- main
- holding pole
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/34—Arrangements for erecting or lowering towers, masts, poles, chimney stacks, or the like
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/02—Structures made of specified materials
- E04H12/08—Structures made of specified materials of metal
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Electric Cable Installation (AREA)
Abstract
The invention provides a method for erecting a power transmission tower by using a combined type electric holding pole, which comprises the following steps: fixedly connecting the holding pole main body to a tower section main material of the first tower section through the fixed seat; hoisting the main tower section material and the cross material of the second tower section through the combined electric holding pole, and installing to form the second tower section of the power transmission tower; loosening the fixed seat and releasing the holding pole main body from the tower section main material of the first tower section; fixing the guide sliding seat on the tower section main material of the second tower section; and opening the power lifting mechanism, and moving the pole holding main body upwards to the designated position of the tower section main material of the second tower section along the tower section main material under the guiding action of the guiding sliding seat. The invention completes the assembly of the iron tower from bottom to top through self-climbing, is suitable for the assembly construction of the iron tower in special terrains where large-scale machinery cannot enter, can effectively reduce the safety risk and the labor amount, and greatly improves the mechanized construction efficiency of the power transmission line.
Description
Technical Field
The invention belongs to the field of power transmission equipment, and particularly relates to a method for erecting a power transmission tower by using a combined type electric holding pole.
Background
The conventional common methods for assembling the transmission line iron tower comprise an internal suspension holding pole tower assembling method and a crane tower assembling method. In the construction of extra-high voltage transmission iron towers in mountain and mountain areas and the erection of 110kV-500kV line iron towers, an inner suspension holding rod tower assembling mode is generally adopted due to the poor terrain and difficulty in entering a tower position by a crane. However, the suspension holding pole group tower has many disadvantages as follows: the construction efficiency of the suspension holding pole tower is low, and the labor amount is large; the construction safety risk is large; the construction site is limited by the terrain; high requirements on construction environment and the like.
Disclosure of Invention
Accordingly, to overcome the above-mentioned disadvantages of the prior art, the present invention provides a method of erecting a power tower using a modular electric pole comprising:
a pole body; the power lifting mechanism is fixedly connected with the holding pole main body, is used for lifting the electric holding pole relative to the power transmission tower and can be used for hoisting main materials and cross materials of the power transmission tower; the fixing seat is fixedly connected with the holding pole main body, can be fixedly connected with a tower section main material of the power transmission tower and is used for detachably fixing the holding pole main body on the tower section main material of the power transmission tower; the guide sliding seat can be detachably and fixedly connected with a main tower section material of the power transmission tower, is in sliding connection with the holding pole main body, and is used for enabling the electric holding pole to move upwards along the main tower section material of the power transmission tower;
wherein the method comprises the following steps:
1) installing a tower section main material of a first tower section of the power transmission tower;
2) attaching the combined electric holding pole to the tower section main material to enable the main body of the electric holding pole to be basically parallel to the tower section main material;
3) assembling the main tower section material and the cross material of the first tower section, and installing to form a first tower section of the power transmission tower;
4) fixedly connecting the holding pole main body to a tower section main material of the first tower section through the fixed seat;
5) hoisting the main tower section material and the cross material of the second tower section through the combined electric holding pole, and installing to form the second tower section of the power transmission tower;
6) loosening the fixed seat and releasing the holding pole main body from the tower section main material of the first tower section;
7) fixing the guide sliding seat on the tower section main material of the second tower section;
8) starting the power lifting mechanism, and moving the holding rod main body upwards to the designated position of the tower section main material of the second tower section along the tower section main material under the guiding action of the guiding sliding seat;
9) installing the rest tower sections of the power transmission tower according to the steps 4) to 8) until the power transmission tower is installed;
10) and removing the combined electric holding pole from the power transmission tower.
Furthermore, the power lifting mechanism comprises a lifting rope, a winch, a pulley and a lifting hook, wherein a first end of the lifting rope is wound on a winding drum of the winch, and a second end, opposite to the first end, of the lifting rope is wound on the pulley and is fixedly connected with the lifting hook;
and the step 4) further comprises that the pole holding main body is fixedly connected to the tower section main material of the first tower section through the fixing seat, so that the combined type electric pole holding main body and the tower section main material jointly form a hoisting mechanism.
Further, the step 5) further comprises operating the lifting hook to hang the tower section main material or the cross material, and retracting the lifting rope by a winch to lift the tower section main material or the cross material to an installation position.
Further, the step 8) further comprises operating the lifting hook to hang the top end of the main tower section material of the second tower section, retracting the lifting rope by a winch, pulling the combined type electric holding pole main body and the fixed seat together to move upwards to a specified position along the main tower section material of the second tower section under the action of the guide sliding seat.
Further, in the step 8), the designated positions are: the top of the holding pole main body and the top of the tower section main material of the second tower section move to the position when the positions are coincident.
The power transmission tower is built in a mode of attaching to the body of the power transmission tower, can be kept stable without an external stay wire, is assembled from bottom to top through self-climbing, and is suitable for the assembly construction of the iron tower in the special terrain where large machinery cannot enter. The invention has the advantages of no stay wire, self-lifting, high-efficiency hoisting and the like, so that the safety risk can be effectively reduced, and the labor amount can be reduced; after the iron tower erection construction is completed, the holding pole is only required to be disassembled in a segmented mode, and the holding pole can be transported to the next base iron tower through manpower or small vehicles to be assembled, so that the mechanical construction efficiency of the power transmission line is greatly improved.
Drawings
Fig. 1 is a schematic view of a combined electric pole used in a method for erecting a power tower by using the combined electric pole according to an embodiment of the present invention;
FIG. 2a is a schematic view of a state before hoisting the main material of the tower section in the method according to the embodiment of the present invention;
FIG. 2b is a schematic view showing a main material finished state of a tower section of the hoisting device;
fig. 2c is a schematic diagram of a state that the combined electric holding pole is ready to climb after the main material of the hoisting tower section is finished;
fig. 2d is a schematic view of a combined type electric holding pole climbing state after the main material of the hoisting tower section is finished;
fig. 2e is a schematic diagram of a climbing completion state of the combined type electric holding pole after the main material of the hoisting tower section is completed.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments and the accompanying drawings.
In order to facilitate understanding of the method of the present invention, a description will be given of a combined electric pole used in the method of the present invention.
As shown in fig. 1, the combined electric holding pole related to the method of the present invention includes a winch 1, a fixed seat 2, a guide slide seat 3, a holding pole main body 4, a pulley 5, a lifting rope 6 and a lifting hook 7, wherein the guide slide seats 3 are fixed on a power transmission tower body in layers along the height direction of the power transmission tower body.
In one embodiment, the pole body 4 is slidably disposed in the guiding slide seat 3, the pulley 5 and the winch 1 are respectively disposed at the top end and the bottom end of the pole body 4, the lifting rope 6 passes through the inside of the pole body 4, one end of the lifting rope 6 is wound on the winding drum of the winch 1, the other end of the lifting rope is wound on the pulley 5 and is fixedly connected with the lifting hook 7, the pole body 4 is fixedly connected with the fixing seat 2, the fixing seat 2 can be detachably and fixedly connected with the tower body of the power transmission tower, and the guiding slide seat 3 can also be detachably and fixedly connected with the tower body of the power transmission tower.
As shown in fig. 2a-2e, in the process of erecting the transmission tower, when the main material and the cross material of the tower section in the transmission tower are hoisted, the fixed base 2 is fixedly connected with the tower body of the transmission tower, at this time, the invention is fixed on the transmission tower and forms a hoisting mechanism, a hoisting object is hooked by the hoisting hook 7, and the hoisting rope 6 is received and released by the winch, so that the hoisting operation is completed.
After a section of tower body is hoisted, when the self-climbing tower needs to be moved upwards to a newly-erected tower body, the lifting hook 7 is separated from the pulley 5 to hook the power transmission tower, the fixing seat 2 is loosened, the hoisting machine receives and releases the lifting rope 6, the holding rod main body 4 drives the fixing seat 2 to slide upwards along the tower body, and at the moment, the self-climbing mechanism is formed, and after the self-climbing tower climbs to a required height, the fixing seat 2 is fixed on the tower body.
Specifically, in one embodiment, the method of the present invention comprises the steps of:
1) a tower section main material 8 for installing the first tower section of the power transmission tower;
2) attaching the combined electric holding pole to the tower section main material to enable the main body of the electric holding pole to be basically parallel to the tower section main material;
3) assembling the main tower section material 8 and the cross material of the first tower section, and installing to form a first tower section of the power transmission tower;
4) fixedly connecting the holding pole main body 4 to a tower section main material 8 of a first tower section through the fixed seat 2;
5) hoisting the main tower section material 9 and the cross material of the second tower section through the combined electric holding pole, and installing to form the second tower section of the power transmission tower;
6) loosening the fixed seat 2, and releasing the holding pole main body 4 from the tower section main material 8 of the first tower section;
7) fixing the guide slide 3 on the tower section main material 9 of the second tower section;
8) starting the power lifting mechanism, and moving the holding rod main body upwards to the installation position of the tower section main material 9 of the second tower section along the tower section main material under the guiding action of the guiding sliding seat 3;
9) installing the rest tower sections of the power transmission tower according to the steps 4) to 8) until the power transmission tower is installed;
10) and removing the combined electric holding pole from the power transmission tower.
In one embodiment, when the pole body 4 moves upwards, the fixing base 2 is loosened, the fixing base 2 slides on the tower body during climbing, and when the pole body 4 moves to a specified position, the fixing base 2 is fixed on the tower body, so that the pole body 4 is fixed on the tower body.
In one embodiment, the guide slider 3 includes a sliding portion and a fixing portion, and when the pole body 4 moves upward, the fixing portion of the guide slider 3 is fixed on the tower body, and the pole body 4 moves along the sliding portion of the guide slider. When holding pole main part 4 and moving to the assigned position, will the fixed part of direction slide 3 is pulled down from the body of the tower, is fixed the fixing base 2 to the body of the tower on, accomplishes the hoist and mount back, will again the direction slide 3 moves to new body of the tower position, carries out new removal direction action.
In one embodiment, after being prepared for hoisting work, the top base of the tower section main material 8 of the first tower section coincides with the top of the electric derrick body. First, the guide carriage needs to be placed to a specified position. In one embodiment, the guide sliding seat is respectively arranged at the positions of 0.3m, 2.3m, 5m and 7m of the holding pole body from top to bottom, and the position of the pulley in the guide sliding seat is adjusted according to actual conditions, so that the pulley is not too tight, the friction force is not too large, and the holding pole is not deviated from the original position due to too loose pulley.
In one embodiment, the guiding slide needs to be placed on the electric holding pole in advance to reduce the difficulty of installing the guiding slide, and then the fixing seat 2 is installed to a designated position. In one embodiment, the installation layout is as follows: a guide sliding seat 3 at the position of 7m, a guide sliding seat 3 at the position of 5m, a guide sliding seat 3 at the position of 2.3m, a fixed seat 2 at the position of 2.1m, a guide sliding seat 3 at the position of 0.3m and a fixed seat 2 at the position of 0.1 m. And can be pre-placed on the top of the fixed seat 2 in the following hoisting process according to the sequence. And thirdly, the steel strand is fixed at an anchoring point by passing the motor through the pulley, the guide sliding seat 3 and the fixed seat 2. And finally, withdrawing the redundant steel strands to the winch.
The climbing step is started, and in one embodiment, the motor is started to tighten the steel strand to ensure that the steel strand has a sufficient tensile force, and then the connecting bolt between the fixed seat 2 and the holding pole main body 4 is removed. After the dismantling is finished, the motor can be slowly started, and the holding pole main body 4 is slowly lifted to the fixed seat 2 at the top. And then the top fixed seat 2 and the holding pole main body 4 are tightly connected through bolts.
During the use, be fixed in transmission tower body on one's body with a plurality of direction slide 3 layering, hold pole main part 4 and slide and wear to locate in the slide 3 that leads, hold the lower extreme of pole main part 4 and be fixed in transmission tower body on one's body through two fixing bases 2. When the power transmission tower is erected, the main material and the cross material of each tower section are hoisted through the lifting hook 7. After accomplishing one section body of tower hoist and mount, be fixed in transmission tower body of the tower with lifting hook 7, loosen fixing base 2, hoist engine 1 receives the line, realizes embracing pole main part 4 and upwards climbing along transmission tower body of the tower, then is fixed in the lower extreme of embracing pole main part 4 with fixing base 2 again for on embracing pole main part 4 is fixed in transmission tower body of the tower, continues to accomplish the hoist and mount of tower section main part material, cross material. Along with the height of transmission tower improves gradually, unclamp the direction slide 3 to move up the direction slide 3, realize embracing the adjustment of pole structure working height, during the use, repeat above-mentioned process.
In the final closing work, the following work content needs to be completed: 1) checking whether the connection between the holding pole main body 4 and the fixed seat 2 is reliable or not; 2) the guide slide 3 below the pole body 4 is completely removed for the next use.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention. The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (5)
1. A method for erecting a power transmission tower by using a combined type electric holding pole is characterized in that,
the electronic armful of pole of combination formula includes:
a pole body;
the power lifting mechanism is fixedly connected with the holding pole main body, is used for lifting the electric holding pole relative to the power transmission tower and can be used for hoisting main materials and cross materials of the power transmission tower; the fixing seat is fixedly connected with the holding pole main body, can be fixedly connected with a tower section main material of the power transmission tower and is used for detachably fixing the holding pole main body on the tower section main material of the power transmission tower; the guide sliding seat can be detachably and fixedly connected with a main tower section material of the power transmission tower, is in sliding connection with the holding pole main body, and is used for enabling the electric holding pole to move upwards along the main tower section material of the power transmission tower;
wherein the method comprises the following steps:
1) installing a tower section main material of a first tower section of the power transmission tower;
2) attaching the combined electric holding pole to the tower section main material to enable the main body of the electric holding pole to be basically parallel to the tower section main material;
3) assembling the main tower section material and the cross material of the first tower section, and installing to form a first tower section of the power transmission tower;
4) fixedly connecting the holding pole main body to a tower section main material of the first tower section through the fixed seat;
5) hoisting the main tower section material and the cross material of the second tower section through the combined electric holding pole, and installing to form the second tower section of the power transmission tower;
6) loosening the fixed seat and releasing the holding pole main body from the tower section main material of the first tower section;
7) fixing the guide sliding seat on the tower section main material of the second tower section;
8) starting the power lifting mechanism, and moving the holding rod main body upwards to the designated position of the tower section main material of the second tower section along the tower section main material under the guiding action of the guiding sliding seat;
9) installing the rest tower sections of the power transmission tower according to the steps 4) to 8) until the power transmission tower is installed;
10) and removing the combined electric holding pole from the power transmission tower.
2. The method of claim 1,
the power lifting mechanism comprises a lifting rope, a winch, a pulley and a lifting hook, wherein a first end of the lifting rope is wound on a winding drum of the winch, and a second end, opposite to the first end, of the lifting rope is wound on the pulley and is fixedly connected with the lifting hook;
and the step 4) further comprises that the pole holding main body is fixedly connected to the tower section main material of the first tower section through the fixing seat, so that the combined type electric pole holding main body and the tower section main material jointly form a hoisting mechanism.
3. The method of claim 2,
and the step 5) further comprises operating the lifting hook to hang the main material or the cross material of the tower section, and retracting the lifting rope by a winch to lift the main material or the cross material of the tower section to an installation position.
4. The method of claim 3,
and 8) operating the lifting hook to hang the top end of the main tower section material of the second tower section, retracting the lifting rope by a winch, pulling the combined type electric holding pole main body to drive the fixed seat to move upwards to a specified position along the main tower section material of the second tower section under the action of the guide sliding seat.
5. The method of claim 1,
in the step 8), the designated positions are: the top of the holding pole main body and the top of the tower section main material of the second tower section move to the position when the positions are coincident.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910931979.7A CN110805353A (en) | 2019-09-29 | 2019-09-29 | Method for erecting power transmission tower by using combined electric holding pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910931979.7A CN110805353A (en) | 2019-09-29 | 2019-09-29 | Method for erecting power transmission tower by using combined electric holding pole |
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| Publication Number | Publication Date |
|---|---|
| CN110805353A true CN110805353A (en) | 2020-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910931979.7A Pending CN110805353A (en) | 2019-09-29 | 2019-09-29 | Method for erecting power transmission tower by using combined electric holding pole |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19946060A1 (en) * | 1999-09-25 | 2001-04-26 | Abb Patent Gmbh | Method and device for raising and / or restoring masts |
| CN201351090Y (en) * | 2009-02-20 | 2009-11-25 | 浙江省建设机械集团有限公司 | Hoist rope reeving device for electric pole |
| CN101865593A (en) * | 2010-06-30 | 2010-10-20 | 中国第一冶金建设有限责任公司 | Method for installing device with air separating tower structure |
| CN108775196A (en) * | 2018-08-14 | 2018-11-09 | 国网江苏省电力有限公司 | Lifting and self-climbing combined mechanism for erecting power transmission tower |
-
2019
- 2019-09-29 CN CN201910931979.7A patent/CN110805353A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19946060A1 (en) * | 1999-09-25 | 2001-04-26 | Abb Patent Gmbh | Method and device for raising and / or restoring masts |
| CN201351090Y (en) * | 2009-02-20 | 2009-11-25 | 浙江省建设机械集团有限公司 | Hoist rope reeving device for electric pole |
| CN101865593A (en) * | 2010-06-30 | 2010-10-20 | 中国第一冶金建设有限责任公司 | Method for installing device with air separating tower structure |
| CN108775196A (en) * | 2018-08-14 | 2018-11-09 | 国网江苏省电力有限公司 | Lifting and self-climbing combined mechanism for erecting power transmission tower |
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Application publication date: 20200218 |