Large-span telescopic universal tower head fixture

Abstract

The invention relates to a large-span telescopic universal tower head fixture. The large-span telescopic universal tower head fixture comprises an intermediate beam, two sleeve beams, hook bolts and tackle rope hanging rods. The two sleeve beams are symmetrically and movably connected to the two sides of the intermediate beam. U-shaped connectors are connected to the tail ends of the sleeve beams, and each U-shaped connector is provided with a horizontal screw hole and vertical screw holes. The hook bolts are connected with the U-shaped connectors through the vertical screw holes. The tackle rope hanging rods are connected with the U-shaped connectors through the horizontal screw holes. The large-span telescopic universal tower head fixture comprises the intermediate beam and the two sleeve beams, and the two sleeve beams are symmetrically arranged on the intermediate beam in a sleeved mode and connected with the intermediate beam through locking bolts so that the length of the portions, sleeved with the sleeve beams, of the intermediate beam and mutual dependence of stress of the two sides can be adjusted, the large-span telescopic universal tower head fixture is suitable for the widths of all cross arm heads. Due to the structure that the sleeve beams are connected with the U-shaped connectors, the intensity of pressure is increased, force bearing points of main cross arm materials can evenly bear force, and deformation caused by overlarge stress will not occur.

Description

technical field [0001] The invention relates to a jig, in particular to a large-span telescopic universal tower head jig. Background technique [0002] The traditional 220kV transmission line live replacement work of composite insulators is to use two tower head seat plates, penetrate two lead screws, lead screws connect two insulating pull plates, pull plates connect two hooks, make the hooks hook the wires, Two workers turn the lead screw to hook the wire, transfer the weight of the wire to the tool, and then replace the linear insulator. Or use block blocks to be directly hung on both sides of the cross-arm for replacement, and two sets of 3-3 block blocks are used to transfer the vertical load, and the 3-3 block blocks are directly hung on the main material of the cross-arm, which is easy to cause the main material to be damaged. Force points deform or slide. If the force on both sides of the pulley group is uneven, it will cause greater deformation on the side where t...

AI Technical Summary

Problems solved by technology

If the force on both sides of the pulley group is uneven, it will cause greater deformation on the side where the force is greater, and there is a huge safety hazard for the safety of the operation and operation, and there are also the following problems: due to the different tower types of the line design It is also different, and there are many types of towers, some of which are available for seat plates and screw screws, and some are not available; due to different circuit designs and different types of insulators, the length and creepage are also different, and some insulating pull plates are available and some are not. Use; use the pulley block to hang directly on both sides of the cross-arm, and it is very easy to damage and deform the cross-arm under the condition of force

Images