Rigid crossing support and crossing method for construction of overhead transmission lines
An overhead transmission line, rigid technology, applied in the direction of overhead line/cable equipment, etc., can solve the problems of the overall bulk of the rack, not outstanding economic benefits, poor safety and stability, etc., to achieve good safety and stability, low cost, easy to operate and use Effect
Active Publication Date: 2013-09-11
STATE GRID CORP OF CHINA +3
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[0003] The general construction plan for overhead transmission lines spanning railway bridges is to erect bamboo or steel pipe spanning frames on both sides of the railway, throw the guide ropes over the high-voltage railway lines, and then lay insulation nets for construction. The existing spanning frames used in spanning construction exist There are many disadvantages and hidden dangers, such as large overall frame size, low process efficiency, high cost, high time cost, low economic benefits, and poor safety and stability; for example, the high-speed railway accident on the Wenyong Line on July 23, 2011 Afterwards, the railway department's review of safety measures for cross-railway construction has become more stringent
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[0022] The rigid spanning bracket and spanning method for overhead transmission line construction of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0023] As shown in the figure, the rigid spanning bracket for overhead transmission line construction of the present invention includes a hanging basket 1 for a standing operator 5, and one end surface of the hanging basket 1 is provided with a pair of V-shaped protruding horns 2, Two pulleys 3 are arranged on the top beam of the hanging basket 1, and the hanging basket 1 is installed on the boom top of the crane 4, and the hanging basket 1 is provided with a reinforced platform for the operator to stand on.
[0024] Further wherein one of the pulleys is arranged on the top of the crossbeam for installing the overhanging horns 2, another pulley is installed in parallel on the top of the crossbeam for installing the overhanging horns 2 opposite...
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The invention discloses a rigid crossing support, in particular to a rigid crossing support and a crossing method for construction of overhead transmission lines. The rigid crossing support comprises a hanging basket for enabling operation staff to stand on, a pair of V-shaped outward-extending cleat-shaped structures is arranged on one end face of the hanging basket, two pulleys are arranged on a top beam of the hanging basket, and the hanging basket is installed at the top end of a lazy arm of a crane. The rigid crossing support and the crossing method for construction of overhead transmission lines have the advantage that by means of the hanging basket and the crane on the hanging basket, the crane can drive the hanging basket to finish cable crossing, meanwhile the V-shaped outward-extending cleat-shaped structures can prevent cables from dropping during cable crossing, the provided pulleys facilitate stable crossing of the cables, and the rigid crossing support is simple in structure, low in cost and good in safety and stability, requires no scaffold, is strong in maneuverability, convenient to operate and use and short in construction period, and ensures device safety and construction safety.
Description
[0001] technical field [0002] The invention relates to a rigid spanning support, in particular to a rigid spanning support and a spanning method for the construction of an overhead power transmission line spanning a railway bridge. Background technique [0003] The general construction plan for overhead transmission lines spanning railway bridges is to erect bamboo or steel pipe spanning frames on both sides of the railway, throw the guide ropes over the high-voltage railway lines, and then lay insulation nets for construction. The existing spanning frames used in spanning construction exist There are many disadvantages and hidden dangers, such as large overall frame size, low process efficiency, high cost, high time cost, low economic benefits, and poor safety and stability; for example, the high-speed railway accident on the Wenyong Line on July 23, 2011 Afterwards, the railway department's review of safety measures for cross-railway construction became more stringent. ...
Claims
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IPC IPC(8): H02G1/02
Inventor 于帅李东升丁旭双姜平
Owner STATE GRID CORP OF CHINA