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Large-span tension stringing construction method and support frame

A construction method and support frame technology, applied in the direction of overhead lines/cable equipment, etc., can solve the problems of increased traction tension and construction difficulties, and achieve the effects of shortening traction tension, avoiding bracket phenomenon, and simple structure

Inactive Publication Date: 2017-09-22
TIANJIN ELECTRIC POWER TRANSMISSION & TRANSFORMATION ENG CORP +1
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Problems solved by technology

[0002] In the construction of long-gauge wires in the erection of transmission lines, excessive tension will lead to construction difficulties. According to the long-term construction experience and the statistics of on-site tension construction records, it is found that the real impact of excessive tension is not the distance of the tension section. Too long, but a certain independent span in the tension section is too large, resulting in increased tension

Method used

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  • Large-span tension stringing construction method and support frame
  • Large-span tension stringing construction method and support frame
  • Large-span tension stringing construction method and support frame

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Embodiment Construction

[0015] The present invention will be further described in detail below in conjunction with the accompanying drawings and through specific embodiments. The following embodiments are only descriptive, not restrictive, and cannot limit the protection scope of the present invention.

[0016] A large-gage tension setting-out construction method, see attached figure 1 As shown, a large-gage tension pay-off support frame is installed on the ground between two iron towers that need traction and stringing. Little pull.

[0017] For the specific structure of the large-gear tension pay-off support frame, refer to the attached figure 2 to attach image 3 As shown, it comprises a pole support 7, an upper support frame 4, an upward pulley block and a limit rod 3, and an upper support frame is fixedly installed symmetrically on both sides of the horizontal side of the upper end of the pole support frame. A set of upward pulley blocks, each set of vertical pulley blocks is fixed at the to...

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Abstract

The invention relates to a large-span tension stringing construction method. A large-span tension stringing support frame is installed on the ground between two iron towers needing to pull and string; the large-span tension stringing support frame jacks up a pull wire; the large-span tension stringing support frame comprises a holding rod support, upper support frames, upside pulley blocks and limiting rods, wherein the upper support frames are symmetrically and fixedly arranged at lateral two sides of the upper end of the holding rod support; four groups of upside pulley blocks are laterally and uniformly arranged at the top end of the upper support frame at intervals; and one limiting rod is fixedly arranged at the upper end of each upper support frame in the middle of lateral two sides of each group of pulley block. The support frame is arranged in the large-span, so that the range in the independent span is shortened, and then the stretching force of the stretching machine is shortened, and the bracket phenomenon is avoided; the support frame disclosed by the invention is simple in structure, and effectively solves the technical problem which is hard to overcome for a long time.

Description

technical field [0001] The invention relates to a large-gage wire erecting construction used in the erection of power transmission lines, in particular to a large-gage tension wire setting-out construction method and a support frame. Background technique [0002] In the construction of long-gauge wires in the erection of transmission lines, excessive tension will lead to construction difficulties. According to the long-term construction experience and the statistics of on-site tension construction records, it is found that the real impact of excessive tension is not the distance of the tension section. It is too long, but a certain independent span in the tension section is too large, which leads to an increase in the tensile force. Contents of the invention [0003] The object of the present invention is to overcome the deficiencies of the prior art, and provide a construction method and a support frame with a simple structure, reduced land occupation, convenient construc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G1/02
CPCH02G1/02
Inventor 方学军杜春阳毕建全王梦实黄磊邓哲常子威左韬刘明洋张国萍郑茂堂于海鑫
Owner TIANJIN ELECTRIC POWER TRANSMISSION & TRANSFORMATION ENG CORP
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