General combined type stringing pulley

A combined and general-purpose technology, applied in the direction of overhead lines/cable equipment, etc., can solve problems such as waste of resources, long-term idleness, etc., and achieve the effect of reducing resistance
CN102074910BInactive Publication Date: 2013-01-09STATE GRID CORP OF CHINA +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
STATE GRID CORP OF CHINA
Publication Date
2013-01-09
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a general combined type stringing pulley. The pulley comprises a main hanging board, a bottom board, two side columns and a principal axis, wherein primary and secondary hooks are arranged at the top of the main hanging board; conductor wheels penetrate through the principal axis; the side column at one side is movably connected with the main hanging board via a primary connection board and a secondary connection board; the main hanging board and the bottom board are connected with other connection parts of the side columns with bolts; the principal axis is movably arranged on the two side columns and is fastened by nuts; a row of blocking wheel carrier connecting holes with space equal to the width of the conductor wheels are arranged at the lower end of the main hanging board; blocking wheels corresponding to the upper edges of the conductor wheels are pairwise arranged at the two sides of the conductor wheels respectively; the blocking wheels are fixed belowthe main hanging board with fixed bolts via blocking wheel carriers; and supporting seats with anchor holes are arranged at the two ends of the bottom board. The pulley can be used for stringing various transmission lines and various quantities of split conductors. Stringing of all split quantities of transmission lines can be satisfied as long as the construction unit only manufactures a pulley and then increases the quantity of the conductor wheels according to the quantity of the split conductors.
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Description

technical field

[0001] The invention relates to an auxiliary device used in the construction process of the wire erection of a high-voltage transmission line, in particular to a wire trolley for erecting a transmission line. Background technique

[0002] At present, high-voltage and ultra-high-voltage transmission lines are becoming more and more common in power transmission lines. The conductors of high-voltage and ultra-high-voltage transmission lines need to have a larger cross-sectional area to reduce power loss. But when the cross-section of the wire is too large, its strength will also increase, it will not be easy to bend, and it will be very difficult to erect, or even impossible to erect. Therefore, EHV transmission lines all use split conductors instead of large cross-section conductors. The split conductor is to arrange two or more conductors side by side according to a certain geometric cross-section to form a guide wire and use it to transmit one-phase power. ...

Claims

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