A pole-holding lattice spanning frame on both sides of the expressway

Abstract

The invention discloses a pole-holding spanning frame on both sides of an expressway, comprising a ground anchor mechanism for enhancing stability, a support mechanism arranged on the ground anchor mechanism, and a span mechanism arranged on the support mechanism, The ground anchor mechanism, the support mechanism and the spanning mechanism are all connected to the control mechanism; the front end of each sub-telescopic arm of the first telescopic rod is provided with an attitude adjustment module, and the sub-telescopic arm close to the attitude adjustment module An emergency buoyancy module is installed on the arm, and a balance adjustment module is installed on the first telescopic arm to adjust the posture according to the balance monitoring module at the front end when the tilt occurs or the weight is large and the wind force is small, so as to ensure that the accidental fall occurs. In practice, the stability of the device is guaranteed through the emergency buoyancy module and the attitude adjustment module.

Description

technical field [0001] The invention belongs to the technical field of auxiliary equipment for electric power construction, and in particular relates to a pole-holding grid spanning frame on both sides of an expressway. Background technique [0002] Since the quality of the transmission wire, especially the high-voltage transmission wire itself, is large, and the two adjacent iron towers used to support the transmission wire have a large span, and there are charged objects, crops, trees, etc. between the two adjacent iron towers. Obstacles such as rivers, roads, buildings and structures are crossed, so erecting or dismantling transmission lines is a complex and difficult project. [0003] In the prior art, erecting or dismantling the transmission wire usually adopts a guide rope installed between two adjacent iron towers and a pulley suspended on the guide rope and controlled by the pull wire, and in order to avoid the transmission wire from contacting the ground or the abov...

AI Technical Summary

Problems solved by technology

Since the transmission wire that needs to be erected or dismantled is pulled by the pulley, it needs to move between two adjacent iron towers, and in the process of moving the transmission wire, it is supported by the spanning frame and slides on it, thus It can be seen that the spanning frame not only bears the weight of the transmission wire, but also produces sliding friction with the transmission wire. Therefore, no matter how strong the spanning frame is, it is easily worn by the large friction force generated by the sliding transmission wire, especially The disassembled old power transmission wire, because of its surface similar to the saw-tooth-shaped tip, is more likely to damage the spanning frame; in addition, the frictional resistance between the power transmission wire and the crossing frame will also have a greater impact on the traction parts, because the conductor The guide rope and the pulley, as well as the pulley are affected by the wind force in the high altitude, and the guide rope and the stay wire are often entangled and the pulley is offset. After this phenomenon occurs, it is difficult for the pulley to move. In the offset state, it is necessary to overcome the frictional resistance between the transmission wire and the spanning frame to move the transmission wire, which can easily cause the stagnation of the transmission wire and other phenomena, thereby affecting the construction process and increasing the amount of maintenance. The construction cost is significantly increased

In the Chinese patent with application number 201310373308.6, an overhead line cross-laying device is disclosed, including an overhead suspension wire, a pay-off vehicle, a traction block with a driving mechanism, and a suspension wire pulley. The front end of the overhead suspension wire passes through a tensioning mechanism Connected to the fixed object in front of the spanning object, the traction block pulls the wire to be laid to move on the elevated suspension line, the suspended wire supporting wheel supports the wire and hangs on the elevated suspension wire, and the wire outlet end of the pay-off vehicle is set Wire anti-twisting device, the lower part of the traction block is equipped with a counterweight balancer; although this invention can solve the problem of wire laying, it does not solve the technical problem of crossing the highway

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