CN114059835A - Guiding assembly for helicopter assembled power transmission line iron tower and using method - Google Patents
Guiding assembly for helicopter assembled power transmission line iron tower and using method Download PDFInfo
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- CN114059835A CN114059835A CN202010761772.2A CN202010761772A CN114059835A CN 114059835 A CN114059835 A CN 114059835A CN 202010761772 A CN202010761772 A CN 202010761772A CN 114059835 A CN114059835 A CN 114059835A
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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
- E04H12/342—Arrangements for stacking tower sections on top of each other
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Abstract
The invention provides a guide assembly for assembling a power transmission line iron tower by a helicopter and a use method thereof. The guide assembly for the helicopter assembly power transmission line iron tower and the use method provided by the invention reduce the requirement on construction precision in the butt joint process during helicopter assembly construction, accelerate the construction process and improve the construction efficiency.
Description
Technical Field
The invention relates to the technical field of assembly construction of a power transmission line iron tower, in particular to a guide assembly for assembling the power transmission line iron tower by a helicopter and a using method thereof.
Background
The transmission line iron towers can be roughly divided into two types according to the structure type, namely stay-supported iron towers and self-supporting iron towers. The tower body of the stay wire type iron tower has poor self anti-tipping capability, and the stay wire is required to be used for keeping the stable vertical state of the tower body; the tower shape of the self-supporting iron tower is wider, and the self-supporting iron tower has the advantages of large bearing capacity, good rigidity, no need of stay wires and the like, thereby having wide application. The iron tower can be divided into three sections from bottom to top: tower legs, a tower body and a tower head. The erection of the iron tower generally has two construction methods, namely an integral tower erection method and a decomposition tower erection method. The self-standing iron tower is generally assembled by using a decomposition tower assembling method, and can be integrally assembled under the condition of permission. The method is a construction method for assembling the iron tower by splitting the iron tower into single components, single sheets or single-section trusses, and using hoisting equipment to carry out independent hoisting, aerial butt joint and sequential assembly. Compared with the commonly used tower assembling hoisting equipment such as a construction holding pole, a mobile crane, a tower crane special for tower assembling and the like for tower assembling, the tower assembling construction is carried out by a helicopter at present. When the helicopter is used for tower assembling construction, a corresponding guide rail system needs to be installed on a tower section, and due to the limitation of the guide rail system, the construction precision requirement is high in butt joint engineering during the tower assembling construction by the helicopter, so that the progress is slow, and the efficiency is low.
Disclosure of Invention
The invention provides a guide assembly for a helicopter assembly power transmission line iron tower and a use method thereof, which can reduce the requirement on construction precision in the butt joint process during helicopter assembly construction, accelerate the construction process and improve the construction efficiency. The technical scheme of the invention is as follows:
a guide assembly for a helicopter assembly power transmission line iron tower comprises a fixing flange at the top end of a tower section which is in place, a connecting flange at the bottom end of a tower section to be hoisted, a bolt for connecting the fixing flange and the connecting flange, a guide rope and a traction device, wherein the guide rope is detachably connected with a screw rod of the bolt, the traction device provides traction force for the guide rope, one end of the guide rope is connected with the traction device, and the other end of the guide rope is connected with the screw rod of the bolt.
The bolt is characterized in that an internal thread hole is formed in the lower end of the screw rod of the bolt, and an external thread matched with the internal thread hole is arranged at one end of the guide rope.
The tower crane further comprises a pulley block arranged at the bottom end of the positioned tower segment.
The traction device comprises a tractor.
A use method of a guide assembly for assembling a power transmission line iron tower by a helicopter comprises the following steps: s1, installing a bolt into a bolt hole on a connecting flange at the bottom end of the tower crane section, and screwing one end of the guide rope with the external thread into an internal thread hole of a screw rod on the bolt for connection; s2, hoisting the hoisted tower section by a helicopter and conveying the hoisted tower section to the position right above the tower section, and hovering the helicopter; s3, enabling the guide rope to penetrate out of the bolt hole on the fixing flange of the tower section in position, enabling the helicopter to slowly descend, and connecting the lower end of the guide rope with the tractor around the pulley block; s4, after the tower crane section is in place, the guide rope is screwed out of the bolt, the bolt is screwed by the nut, and the helicopter is separated from the tower crane section.
Compared with the prior art, the invention has the beneficial effects that:
the guide assembly for the helicopter assembly power transmission line iron tower and the use method provided by the invention reduce the requirement on construction precision in the butt joint process during helicopter assembly construction, accelerate the construction process and improve the construction efficiency.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is to be noted that, in the present invention, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.
Furthermore, the terms "long", "short", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention, but do not indicate or imply that the referred devices or elements must have the specific orientations, be configured to operate in the specific orientations, and thus are not to be construed as limitations of the present invention.
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments thereof.
As shown in fig. 1, the guiding assembly for the helicopter assembly power transmission line tower comprises a fixing flange 11 at the top end of a tower section 1 which is in place, a connecting flange 21 at the bottom end of a tower section 2 to be hoisted, a bolt 3 for connecting the fixing flange 11 and the connecting flange 21, a guiding rope 4 and a traction device 6, wherein the guiding rope 4 is detachably connected with a screw rod of the bolt 3, the traction device 6 provides traction force for the guiding rope 4 to facilitate the butt joint of the tower section 2 to be hoisted and the tower section 1 which is in place, one end of the guiding rope 4 is connected with the traction device 6, and the other end of the guiding rope 4 is connected with the screw rod of the bolt 3.
The inside internal thread hole that is equipped with of lower extreme of bolt 3's screw rod, the one end of direction rope 4 be equipped with internal thread hole assorted external screw thread, the screw rod part of direction rope 4 and bolt 3 can dismantle the connection through screw-thread fit.
The guiding assembly also comprises a pulley block arranged at the bottom end of the positioned tower segment 2, a guiding rope 3 is wound around the pulley block, one end of the guiding rope 4 is connected with a traction device 6, and the other end is connected with a screw rod of the bolt 3.
The traction device 6 comprises a tractor, and other traction devices can be adopted.
The general construction process of using a flange connection tower section in a helicopter assembly tower is as follows:
(1) a set of guide rail components are respectively arranged at four connecting positions of the hoisted tower section 2 and the positioned tower section 1 and connected with a limiting rope 7;
(2) the assembled suspended tower section 2 is suspended below the belly of the helicopter by using a suspension device or a hanger 8, and then is lifted to the position above the tower section 1 and suspended;
(3) the helicopter driver gradually reduces the hovering height, so that the hoisted tower section 2 slowly descends under the guiding action of the guiding assembly and enters the installation position to be in place;
(4) the helicopter loosens the connection with the hung tower section and flies away, constructors climb the tower and connect the flanges between the tower sections by using bolts, and therefore the helicopter assembly construction of the flange connection tower section in the iron tower is completed.
The use method of the helicopter for assembling the power transmission line iron tower by adopting the guide assembly comprises the following steps: s1, before being hoisted, checking the hoisted tower section, after confirming that the error is not found, installing the bolt 3 into the bolt hole on the connecting flange 21 at the bottom end of the hoisted tower section 2, enabling the screw rod part of the bolt 3 to face downwards, screwing the end with the external thread on the guide rope 4 into the internal thread hole of the screw rod from the lower part of the bolt 3, and connecting the guide rope 4 and the bolt 3 into a whole; s2, hoisting the hoisted tower section 2 by a helicopter through the hoist 8, and conveying the hoisted tower section to the position right above the tower 1, and hovering the helicopter; s3, the constructor steps on the tower, the lower end of the guide rope 4 penetrates out of the bolt hole on the fixing flange 11 of the tower section 1 which is positioned, the helicopter descends slowly, the ground constructor winds the guide rope 4 on the fixed pulley after the lower end of the guide rope 4 falls to the ground, the lower end of the guide rope 4 is connected with the traction device 6, the traction device 6 pulls the guide rope 4, the tower section 2 to be hoisted descends slowly under the action of the guide rope 4, the adjustment and alignment of the connection part need to be noticed in the descending process, the bolt enters the bolt hole of the fixing flange 11 at the top end of the tower section 1 which is positioned, and the positioning work of the tower section 2 to be hoisted is completed; s4, after the tower crane section 2 is in place, the guide rope 4 is screwed out of the bolt 3, ground constructors pack up the guide rope 4, the constructors on the tower tighten the bolt 3 with nuts to complete the connection between the tower sections, the hanger 8 loosens the connection with the tower crane section 2, and the helicopter flies away.
The guide assembly for the helicopter assembly power transmission line iron tower and the use method provided by the invention reduce the requirement on construction precision in the butt joint process during helicopter assembly construction, accelerate the construction process and improve the construction efficiency.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (5)
1. The direction subassembly that helicopter assemblage power transmission line iron tower was used includes at mounting flange (11) of taking one's place tower section (1) top, flange (21) and the bolt (3) that connection mounting flange (11) and flange (21) were used of being hung tower section (2) bottom, its characterized in that: still include direction rope (4) and draw gear (6), the screw rod of direction rope (4) and bolt (3) can be dismantled and be connected, draw gear (6) provide traction force for direction rope (4), the one end and the draw gear (6) of direction rope (4) are connected, and the other end is connected with the screw rod of bolt (3).
2. The guide assembly for a helicopter assembly power line tower of claim 1 further comprising: the bolt is characterized in that an internal threaded hole is formed in the lower end of a screw rod of the bolt (3), and an external thread matched with the internal threaded hole is arranged at one end of the guide rope (4).
3. The guide assembly for a helicopter assembly power line tower of claim 1 further comprising: the device also comprises a pulley block arranged at the bottom end (2) of the positioned tower segment.
4. The guide assembly for a helicopter assembly power line tower of claim 3 further comprising: the traction device (6) comprises a tractor.
5. The use method of the guide assembly for the helicopter assembly power transmission line iron tower is characterized in that: the guide assembly comprises the guide assembly for the helicopter assembling power line tower of any one of claims 1 to 4, and comprises the following steps: s1, installing the bolt (3) into a bolt hole on the connecting flange (21) at the bottom end of the tower crane section (2), and screwing one end with external threads on the guide rope (4) into an internal thread hole of a screw rod on the bolt (3) for connection; s2, hoisting the hoisted tower section (2) by a helicopter and conveying the hoisted tower section to the position right above the tower section (1), and hovering the helicopter; s3, enabling the guide rope (4) to penetrate out of a bolt hole in a fixed flange (11) of the tower section (1) in place, enabling the helicopter to slowly descend, and connecting the lower end of the guide rope (4) with a tractor around a pulley block; s4, after the tower crane section (2) is in place, the guide rope (4) is screwed out of the bolt (3), the bolt (3) is screwed by a nut, and the helicopter is separated from the tower crane section (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010761772.2A CN114059835A (en) | 2020-07-31 | 2020-07-31 | Guiding assembly for helicopter assembled power transmission line iron tower and using method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010761772.2A CN114059835A (en) | 2020-07-31 | 2020-07-31 | Guiding assembly for helicopter assembled power transmission line iron tower and using method |
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| Publication Number | Publication Date |
|---|---|
| CN114059835A true CN114059835A (en) | 2022-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010761772.2A Pending CN114059835A (en) | 2020-07-31 | 2020-07-31 | Guiding assembly for helicopter assembled power transmission line iron tower and using method |
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| CN (1) | CN114059835A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115263066A (en) * | 2022-09-27 | 2022-11-01 | 国网辽宁省电力有限公司 | Electric power iron tower |
| CN116733285A (en) * | 2023-07-31 | 2023-09-12 | 中国电建集团江西省电力设计院有限公司 | Transmission tower reinforced structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080078104A (en) * | 2007-02-22 | 2008-08-27 | 경 환 정 | Helicopter stranding method of transmission tower transmission line using live special fiber rope |
| CN103031978A (en) * | 2012-12-12 | 2013-04-10 | 中国电力科学研究院 | Installation assisting system for erection of power transmission line iron tower and erection method for iron tower |
| CN105464456A (en) * | 2015-12-30 | 2016-04-06 | 国家电网公司 | Method and lifting sling for assembling extra-high voltage transmission iron tower through helicopter |
| CN213683456U (en) * | 2020-07-31 | 2021-07-13 | 国网河南省电力公司新密市供电公司 | Guide components for helicopter assembly of transmission line towers |
-
2020
- 2020-07-31 CN CN202010761772.2A patent/CN114059835A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080078104A (en) * | 2007-02-22 | 2008-08-27 | 경 환 정 | Helicopter stranding method of transmission tower transmission line using live special fiber rope |
| CN103031978A (en) * | 2012-12-12 | 2013-04-10 | 中国电力科学研究院 | Installation assisting system for erection of power transmission line iron tower and erection method for iron tower |
| CN105464456A (en) * | 2015-12-30 | 2016-04-06 | 国家电网公司 | Method and lifting sling for assembling extra-high voltage transmission iron tower through helicopter |
| CN213683456U (en) * | 2020-07-31 | 2021-07-13 | 国网河南省电力公司新密市供电公司 | Guide components for helicopter assembly of transmission line towers |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115263066A (en) * | 2022-09-27 | 2022-11-01 | 国网辽宁省电力有限公司 | Electric power iron tower |
| CN115263066B (en) * | 2022-09-27 | 2022-12-09 | 国网辽宁省电力有限公司 | Electric power iron tower |
| CN116733285A (en) * | 2023-07-31 | 2023-09-12 | 中国电建集团江西省电力设计院有限公司 | Transmission tower reinforced structure |
| CN116733285B (en) * | 2023-07-31 | 2026-01-16 | 中国电建集团江西省电力设计院有限公司 | Transmission tower reinforced structure |
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Application publication date: 20220218 |
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| RJ01 | Rejection of invention patent application after publication |