CN103867024A - Attached type lifting device of transmission tower - Google Patents
Attached type lifting device of transmission tower Download PDFInfo
- Publication number
- CN103867024A CN103867024A CN201210537884.5A CN201210537884A CN103867024A CN 103867024 A CN103867024 A CN 103867024A CN 201210537884 A CN201210537884 A CN 201210537884A CN 103867024 A CN103867024 A CN 103867024A
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- pole
- group
- rope
- free bearing
- herringbone holding
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Abstract
The invention discloses an attached type lifting device of a transmission tower. The attached type lifting device of the transmission tower comprises a main pole, an outside pulling wire, a supporting rope, a reverse Y-shaped pole, an amplitude modulation rope group and a lifting tackle group, wherein the main pole is higher than the top of the transmission tower, the end of the reverse Y-shaped pole assembled on the ground in advance is provided with the upper half component of a third hinged support, the third hinged support is mounted at the upper part of the transmission tower body, an upper cross arm and a ground wire bracket are controlled by a control rope, a first hinged support is mounted at the head of the main pole and is connected with the upper end group of the amplitude modulation rope group, the other end group of the amplitude modulation rope group is connected with a second hinged support, the other end of the reverse Y-shaped pole opposite to the second hinged support is provided with a third hinged support with a three-hole connecting plate, one end of a fixed-length steel wire rope of the amplitude modulation rope group is mounted at the side of the third hinged support of the reverse Y-shaped pole connected with the main pole, the right of the three-hole connecting plate of the third hinged support is provided with a main lifting 100 kN 2-2 pulley rope group, the interval between two pulleys is regulated to 15 meters and then the pulleys are bound with the reverse Y-shaped pole, a movable pulley of the pulley rope group is hooked with a spare steel wire rope, and fastening flange bolts are mounted at the lower part of the second hinged support.
Description
Technical field
The present invention relates to a kind of transmission of electricity high tower attaching lifting gear, belong to the large-scale electric power pylon hanging device of extra-high voltage engineering technical field.
Background technology
Transmission of electricity high tower attaching lifting gear is as interim member, in the process of the vertical steel tower of group, lifting gear and steel tower influence each other, the design of lifting gear is basis mainly with experience greatly in engineering application, be not optimized for the feature of extra-high voltage group tower, will inevitably cause so unnecessary waste even to threaten safety.Whether the design of lifting gear structure is reasonable, whether appropriately install, economic benefit and safety guarantee are had to direct impact, in extra-high voltage group tower crane process of assembling, due to the development along with extra-high voltage 1000kV interchange, ± 800kV DC power transmission line, it (is generally the more than five times of conventional tower that the single-piece amount of engineering steel tower also increases thereupon, especially cross-arm length exceedes 60 meters, substance more than eight tons), single mobility is large and still existed by the feature of environmental constraints, and conventional transmission of electricity high tower attaching lifting gear can not meet construction needs.Therefore, need to redesign a kind of new transmission of electricity high tower attaching lifting gear.
Summary of the invention
The one transmission of electricity high tower attaching lifting gear that provides of the present invention, to meet current construction needs, improves economy and the safety of transmission of electricity high tower attaching lifting gear.For achieving the above object, embodiments of the invention adopt following technical scheme:
A kind of transmission of electricity high tower attaching lifting gear, comprise main pole, external cable, bearing rope, herringbone holding pole, amplitude modulation rope group, lifting tackles group, described main pole exceeds power transmission tower end face, the herringbone holding pole root assembling on ground is in advance installed first parts of the 3rd free bearing, described the 3rd free bearing is installed on transmission of electricity high tower tower body top, adopt tricing line to carry out control operation to upper cross-arm and earth wire support, main pole head has the first free bearing and is connected with the upper end group of amplitude modulation rope group, the other end group of amplitude modulation rope group is connected with herringbone holding pole by the second free bearing, the other end relative with the second free bearing at herringbone holding pole installed the 3rd free bearing with three hole connecting plates, the 3rd free bearing that fixed length wire rope one end of amplitude modulation rope group is arranged on herringbone holding pole is connected side with main pole, on the right side of three hole connecting plates of the 3rd free bearing, installation hangs main lifting 100kN level " 2-2 " purchase fall group, two pulley rooms are tied up solid apart from adjusting to 15m and herringbone holding pole root, at movable pulley hook one wire rope for subsequent use of described chain wheel rope group, the bottom of described the second free bearing, clamp flange bolt is installed.
Preferably, wherein said main pole emersion tower body height 16-18m, herringbone holding pole height 13-15m, the angle of herringbone holding pole axis and plumb line is controlled between 35 degree-50 degree.
Preferably, according to hung component gravity center distance, main pole is oblique to stressed inclination, angle of inclination is not more than 7 degree, and pole head horizontal range tilts to be not more than 4m.
Preferably, it also has safety rope, excessive to control herringbone holding pole inclination angle.
Preferably, wherein said main pole and herringbone holding pole adopt aluminium alloys manufacture, and slenderness ratio is greater than 100.Wherein said aluminium alloys is square aluminum alloy, and slenderness ratio adopts following formula to calculate:
In formula
μ---pole length conversion factor, determine according to pole end support state;
μ'---the correction factor of pole reduced length;
l---the calculated length of pole, cm;
j---the moment of inertia of pole middle part section, cm4;
f---the total sectional area of the main material of pole, cm2.
Preferably, wherein said main pole and herringbone holding pole adopt 16Mn steel making, and slenderness ratio is greater than 90.
Preferably, wherein said main pole adopts 16Mn steel making, and herringbone holding pole adopts aluminium alloys manufacture.
Preferably, wherein said the first free bearing, the second free bearing and the 3rd free bearing adopt respectively Split assembled to connect design, so that the probability equalization of each tension stress of pole.The section of wherein said main pole and herringbone holding pole adopts respectively inner flange bolt to be connected with intersegmental being connected.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the transmission of electricity high tower attaching lifting gear overall schematic of the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.And following embodiment is possibility of the present invention, embodiment put in order and the numbering execution sequence preferred with it of embodiment irrelevant.
As shown in Figure 1, transmission of electricity high tower attaching lifting gear of the present invention, comprise main pole 1, external cable 2, bearing rope 3, herringbone holding pole 4, amplitude modulation rope group 5, lifting tackles group 6, described main pole 1 exceeds power transmission tower end face 15-18m, herringbone holding pole 4 is after ground assembles, first parts of the 3rd free bearing C are installed at root, described the 3rd free bearing C is installed on transmission of electricity high tower tower body top, adopt tricing line 8 to carry out control operation to upper cross-arm and earth wire support 7, main pole 1 head has the first free bearing A and is connected with the upper end group of amplitude modulation rope 5, the other end group of amplitude modulation rope group 5 is connected with herringbone holding pole 4 by the second free bearing B, the other end relative with the second free bearing B at herringbone holding pole 4 installed the 3rd free bearing C with three hole connecting plates, the 3rd free bearing C that fixed length wire rope one end of amplitude modulation rope group is arranged on herringbone holding pole 4 is connected side with main pole, on the right side of the three hole connecting plates of the 3rd free bearing C, installation hangs main lifting 100kN level " 2-2 " purchase fall group, two pulley rooms are tied up solid apart from adjusting to 15m and herringbone holding pole root, at movable pulley hook one wire rope for subsequent use of described chain wheel rope group, the bottom of described the second free bearing B, clamp flange bolt is installed.
Wherein said main pole emersion tower body height 16-18m, herringbone holding pole height 13-15m, the angle of herringbone holding pole axis and plumb line is controlled between 35 degree-50 degree.According to hung component gravity center distance, main pole is oblique to stressed inclination, and angle of inclination is not more than 7 degree, and pole head horizontal range tilts to be not more than 4m.It also has safety rope, excessive to control herringbone holding pole inclination angle.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, any be familiar with those skilled in the art the present invention disclose technical scope in; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with the protection domain of claim.
Claims (10)
1. a transmission of electricity high tower attaching lifting gear, comprise main pole, external cable, bearing rope, herringbone holding pole, amplitude modulation rope group, lifting tackles group, described main pole exceeds power transmission tower end face, the herringbone holding pole root assembling on ground is in advance installed first parts of the 3rd free bearing, described the 3rd free bearing is installed on transmission of electricity high tower tower body top, adopt tricing line to carry out control operation to upper cross-arm and earth wire support, main pole head has the first free bearing and is connected with the upper end group of amplitude modulation rope group, the other end group of amplitude modulation rope group is connected with herringbone holding pole by the second free bearing, the other end relative with the second free bearing at herringbone holding pole installed the 3rd free bearing with three hole connecting plates, the 3rd free bearing that fixed length wire rope one end of amplitude modulation rope group is arranged on herringbone holding pole is connected side with main pole, on the right side of three hole connecting plates of the 3rd free bearing, installation hangs main lifting 100kN level " 2-2 " purchase fall group, two pulley rooms are tied up solid apart from adjusting to 15m and herringbone holding pole root, at movable pulley hook one wire rope for subsequent use of described chain wheel rope group, the bottom of described the second free bearing, clamp flange bolt is installed.
2. the high tower attaching lifting gear of transmitting electricity as described in claim 1, wherein said main pole emersion tower body height 16-18m, herringbone holding pole height 13-15m, the angle of herringbone holding pole axis and plumb line is controlled between 35 degree-50 spend.
3. the high tower attaching lifting gear of transmitting electricity as described in claim 2, according to hung component gravity center distance, main pole is oblique to stressed inclination, angle of inclination is not more than 7 degree, and pole head horizontal range tilts to be not more than 4m.
4. the high tower attaching lifting gear of transmitting electricity as described in claim 1, it also has safety rope, excessive to control herringbone holding pole inclination angle.
5. the high tower attaching lifting gear of transmitting electricity as described in claim 1, wherein said main pole and herringbone holding pole adopt aluminium alloys manufacture, and slenderness ratio is greater than 100.
6. the high tower attaching lifting gear of transmitting electricity as described in claim 1, wherein said main pole and herringbone holding pole adopt 16Mn steel making, and slenderness ratio is greater than 90.
7. the high tower attaching lifting gear of transmitting electricity as described in claim 1, wherein said main pole adopts 16Mn steel making, and herringbone holding pole adopts aluminium alloys manufacture.
8. the high tower attaching lifting gear of transmitting electricity as described in claim 1, wherein said the first free bearing, the second free bearing and the 3rd free bearing adopt respectively Split assembled to connect design, so that the probability equalization of each tension stress of pole.
9. the high tower attaching lifting gear of transmitting electricity as described in claim 8, the section of wherein said main pole and herringbone holding pole adopts respectively inner flange bolt to be connected with intersegmental being connected.
10. the high tower attaching lifting gear of transmitting electricity as described in claim 5, wherein said aluminium alloys is square aluminum alloy, slenderness ratio adopts following formula to calculate:
In formula
μ---pole length conversion factor, determine according to pole end support state;
μ'---the correction factor of pole reduced length;
l---the calculated length of pole, cm;
j---the moment of inertia of pole middle part section, cm4;
f---the total sectional area of the main material of pole, cm2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210537884.5A CN103867024A (en) | 2012-12-13 | 2012-12-13 | Attached type lifting device of transmission tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210537884.5A CN103867024A (en) | 2012-12-13 | 2012-12-13 | Attached type lifting device of transmission tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103867024A true CN103867024A (en) | 2014-06-18 |
Family
ID=50906000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210537884.5A Pending CN103867024A (en) | 2012-12-13 | 2012-12-13 | Attached type lifting device of transmission tower |
Country Status (1)
| Country | Link |
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| CN (1) | CN103867024A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105019713A (en) * | 2015-08-13 | 2015-11-04 | 国家电网公司 | Novel telegraph pole |
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|---|---|---|---|---|
| CN101649683A (en) * | 2008-08-13 | 2010-02-17 | 黑龙江省送变电工程公司 | Method for hoisting power transmission iron tower by assembly holding pole technology |
| CN101649682A (en) * | 2008-08-13 | 2010-02-17 | 黑龙江省送变电工程公司 | Method for assembling tower by post-assembly rocker arm holding pole technology |
| WO2012083831A1 (en) * | 2010-12-21 | 2012-06-28 | 国家电网公司直流建设分公司 | Guiding rail suite for assembling power transmission line iron tower via helicopter |
| US8341918B2 (en) * | 2007-11-15 | 2013-01-01 | Tony Jolly | System and method for erecting a tower |
| CN202831769U (en) * | 2012-08-13 | 2013-03-27 | 天津市华为电力器材有限责任公司 | Detachable lifting pole |
-
2012
- 2012-12-13 CN CN201210537884.5A patent/CN103867024A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8341918B2 (en) * | 2007-11-15 | 2013-01-01 | Tony Jolly | System and method for erecting a tower |
| CN101649683A (en) * | 2008-08-13 | 2010-02-17 | 黑龙江省送变电工程公司 | Method for hoisting power transmission iron tower by assembly holding pole technology |
| CN101649682A (en) * | 2008-08-13 | 2010-02-17 | 黑龙江省送变电工程公司 | Method for assembling tower by post-assembly rocker arm holding pole technology |
| WO2012083831A1 (en) * | 2010-12-21 | 2012-06-28 | 国家电网公司直流建设分公司 | Guiding rail suite for assembling power transmission line iron tower via helicopter |
| CN202831769U (en) * | 2012-08-13 | 2013-03-27 | 天津市华为电力器材有限责任公司 | Detachable lifting pole |
Non-Patent Citations (2)
| Title |
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| 李庆林: "大长细比铝合金抱杆的安全性分析", 《电力建设》 * |
| 李庆林: "铝合金抱杆长细比的经济性分析", 《电力建设》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105019713A (en) * | 2015-08-13 | 2015-11-04 | 国家电网公司 | Novel telegraph pole |
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Application publication date: 20140618 |