CN203667852U - Variable cross-section crane suitable for assembly of transmission tower - Google Patents

Variable cross-section crane suitable for assembly of transmission tower Download PDF

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Publication number
CN203667852U
CN203667852U CN201320626372.6U CN201320626372U CN203667852U CN 203667852 U CN203667852 U CN 203667852U CN 201320626372 U CN201320626372 U CN 201320626372U CN 203667852 U CN203667852 U CN 203667852U
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China
Prior art keywords
tower
standard knot
standard
hoisting crane
crane
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Active
Application number
CN201320626372.6U
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Chinese (zh)
Inventor
金鹤翔
方国庆
张有裕
周立宏
佘镇海
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Zhejiang Construction Machinery Group Co Ltd
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Zhejiang Construction Machinery Group Co Ltd
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Priority to CN201320626372.6U priority Critical patent/CN203667852U/en
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Abstract

The utility model discloses a variable cross-section crane suitable for assembly of a transmission tower. The variable cross-section crane comprises a tower body formed by connecting a plurality of standard sections with different cross sections, wherein the lower part of the tower body is mounted on a foundation base, a hydraulic jacking mechanism is arranged at the lower part of the tower body, and suspension arms are symmetrically hinged to the upper part of the tower body and provided with pulley block connecting and hoisting devices. The multi-section tower body which comprises multiple sections from top to bottom is adopted and is formed by respectively connecting standard sections with increased cross section sizes, so that a closing-up suspension standard section with a smaller length can be formed at the upper end of the tower body, and the suspension arms can penetrate through an upper opening of the transmission tower. Meanwhile, steel material wall thickness of the upper standard section is increased, and fixing girdle rings are added, so that the overall structural strength of the tower body is guaranteed with the measures, and the crane is safe and reliable.

Description

Be suitable for the vertical variable section hoisting crane of electric power pylon group
Technical field
The utility model relates to tower crane, and the tower hoisting crane of variable section little and the vertical use of electric power pylon group that top cannot be adhered to is specifically applicable to closing up.
Background technology
Along with the development of UHV transmission line, electric power pylon form, structure are various, this just requires more and more harsher to hoisting crane tool, such as, the situation such as cannot be adhered in the tower body closing in cross section little (hoisting crane complete machine cannot pass smoothly) on electric power pylon top, tower body top.To the actual conditions of electric power pylon above, corresponding hoisting crane specific aim of setting up lifting requires there are two, one is that the tower body cross section bore of hoisting crane itself is less than conventional tower body cross section, complete lifting operation so that crane tower stature is located within electric power pylon tower body, and after lifting arm receipts arm, can complete smoothly the unloading process of hoisting crane through electric power pylon tower body.Second tower body is the main body of hoisting crane, supporting hoisting crane body and hanging the weight of carrying, and bear moment of flexure and vertical pressure, and can, after hoisting crane tower body reduced cross-sectional, cantilever height be increased, ensure structural strength, completes lifting operation so that safe and reliable.
Utility model content
The utility model object is to provide that a kind of structural strength is high, the little and top of being suitable for closing up is without adhering to the vertical variable section hoisting crane of electric power pylon group.
The technical scheme in the invention for solving the above technical problem is: be suitable for the vertical variable section hoisting crane of electric power pylon group, comprise the tower body that some standard knots connect and compose, tower body bottom is arranged on sole plate, tower body bottom is provided with hydraulic lifting stock, tower body top symmetry is hinged with arm, described arm also has assembly pulley to connect jack up unit, it is characterized in that, described tower body is formed by connecting by the different standard knot in some cross sections.
Described tower body is made up of the standard knot of two kinds of different cross section sizes, and tower body top standard knot 9A sectional dimension is little, and tower body bottom standard knot 9B sectional dimension is large, between top standard knot 9A and bottom standard knot 9B, is connected with transition segment.
The tower body section of described bottom standard knot 9B composition is made up of the first standard knot 9Ba and the second standard knot 9Bb, described the first standard knot 9Ba is identical with second its sectional dimension of standard knot 9Bb, but the angle steel limit of the first standard knot 9Ba main chord is thick, and to be greater than the second standard knot 9Bb angle steel limit thick, the main chord strength of material of the first standard knot 9Ba that forms thus tower body top is large, and the main chord strength of material of the second standard knot 9Bb of tower body bottom is little.
The tower body section of described same cross section bottom standard knot 9B composition is provided with girdle ring.
Described tower body is made up of the standard knot of three kinds of different cross section sizes, and tower body has three sections from top to bottom, and correspondence is connected and composed by sectional dimension standard knot from small to large.
The hydraulic lifting stock that tower body bottom arranges adopts two oil cylinder hydraulic jack-up systems.
The utility model is to solve electric power pylon to close up little, top without the construction requirement adhering to, existing tower crane is improved to accordingly: adopt multiple stage tower body, tower body has some sections from top to bottom, correspondence is connected and composed respectively by sectional dimension standard knot from small to large, this can make the less closing in of formation length dimension of tower body upper end hang segment standard joint thus, thereby makes arm smoothly through electric power pylon upper opening.Form in addition the standard knot length of tower body hypomere, reduce the wall thickness of main chord steel, this can reduce tower body overall weight, is convenient to transport and installs.Meanwhile, increase the wall thickness of epimere standard knot steel, and add fixing girdle ring, these measures ensure the structural strength of tower body entirety, make its safety, reliable.
Brief description of the drawings
Fig. 1 is utility model structural representation;
Fig. 2 is A portion enlarged drawing.
Detailed description of the invention
Referring to Fig. 1, Fig. 1 is the first embodiment of the present invention, be suitable for the vertical variable section hoisting crane of electric power pylon group, comprise the tower body 1 that some standard knots connect and compose, tower body bottom is arranged on sole plate 2, and tower body bottom is provided with hydraulic lifting stock 3, and the hydraulic lifting stock that tower body bottom arranges adopts two oil cylinder hydraulic jack-up systems, tower body top symmetry is hinged with arm 4, and described arm also has assembly pulley to connect jack up unit 5.Concrete, hoisting crane tower body is made up of two sections of different tower body sections of cross-sectional length, namely tower body is made up of the standard knot of two kinds of different cross section sizes, form tower body top standard knot 9A sectional dimension little, tower body bottom standard knot 9B sectional dimension is large, between top standard knot 9A and bottom standard knot 9B, is connected with transition segment 6.
As improvement, the tower body section of bottom standard knot 9B composition is made up of the first standard knot 9Ba and the second standard knot 9Bb, described the first standard knot 9Ba is identical with second its sectional dimension of standard knot 9Bb, but the angle steel limit of the first standard knot 9Ba main chord is thick, and to be greater than the second standard knot 9Bb angle steel limit thick, the main chord strength of material of the first standard knot 9Ba that forms thus tower body top is large, and the main chord strength of material of the second standard knot 9Bb of tower body bottom is little.
For strengthening the structural strength of tower body entirety, be provided with girdle ring 7 with the tower body section of bottom, cross section standard knot 9B composition.
The second embodiment is that tower body forms by three sections, is made up of three kinds of different standard knots of sectional dimension.Therefore, tower body by technical scheme that more standard knot of multistage forms also at the row of protection of the present invention.

Claims (6)

1. be suitable for the vertical variable section hoisting crane of electric power pylon group, comprise the tower body (1) that some standard knots connect and compose, tower body bottom is arranged on sole plate (2), tower body bottom is provided with hydraulic lifting stock (3), tower body top symmetry is hinged with arm (4), described arm also has assembly pulley to connect jack up unit (5), it is characterized in that, described tower body is formed by connecting by the different standard knot in some cross sections.
2. hoisting crane according to claim 1, it is characterized in that: described tower body is made up of the standard knot of two kinds of different cross section sizes, tower body top standard knot (9A) sectional dimension is little, tower body bottom standard knot (9B) sectional dimension is large, between top standard knot (9A) and bottom standard knot (9B), is connected with transition segment (6).
3. hoisting crane according to claim 2, it is characterized in that: described bottom standard knot (9B) is divided into the first standard knot (9Ba) and the second standard knot (9Bb), described the first standard knot (9Ba) is identical with its sectional dimension of the second standard knot (9Bb), but the angle steel limit of the first standard knot (9Ba) main chord is thick, to be greater than the second standard knot (9Bb) angle steel limit thick.
4. hoisting crane according to claim 3, is characterized in that: the tower body section of bottom standard knot (9B) composition in described same cross section is provided with girdle ring (7).
5. hoisting crane according to claim 1, is characterized in that: described tower body is made up of the standard knot of three kinds of different cross section sizes, and tower body has three sections from top to bottom, and correspondence is connected and composed by sectional dimension standard knot from small to large.
6. hoisting crane according to claim 1, is characterized in that: the hydraulic lifting stock that described tower body bottom arranges adopts two oil cylinder hydraulic jack-up systems.
CN201320626372.6U 2013-10-11 2013-10-11 Variable cross-section crane suitable for assembly of transmission tower Active CN203667852U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320626372.6U CN203667852U (en) 2013-10-11 2013-10-11 Variable cross-section crane suitable for assembly of transmission tower

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320626372.6U CN203667852U (en) 2013-10-11 2013-10-11 Variable cross-section crane suitable for assembly of transmission tower

Publications (1)

Publication Number Publication Date
CN203667852U true CN203667852U (en) 2014-06-25

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ID=50964171

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320626372.6U Active CN203667852U (en) 2013-10-11 2013-10-11 Variable cross-section crane suitable for assembly of transmission tower

Country Status (1)

Country Link
CN (1) CN203667852U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106972412A (en) * 2017-03-20 2017-07-21 国家电网公司 UHV transmission line lattice crossing frame

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106972412A (en) * 2017-03-20 2017-07-21 国家电网公司 UHV transmission line lattice crossing frame
CN106972412B (en) * 2017-03-20 2019-07-26 国家电网公司 UHV transmission line lattice crossing frame

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