Installation assisting system for erection of power transmission line iron tower and erection method for iron tower

Abstract

The invention provides an installation assisting system for erection of a power transmission line iron tower and an erection method for the iron tower. The installation assisting system comprises three parts, namely a guide component, a vertical limit device and a horizontal limit device, wherein each part can be made from angle steel or steel plates. The guide component is hung on the inner side of a main material of a tower section in place through an inclined guide piece and provides a guiding role for the in-place installation of a hung tower section; the vertical limit device 42 located at the outer side of the main material of the tower section in place is connected with a guide rail through a bolt, tightly clamps the main material of the tower section in place and provides temporary support for the in-place installation of the hung tower section; and the horizontal limit device located at the outer side of connection angle steel is installed on the hung tower section together with the connection angle steel and provides limit for the in-placement installation of the hung tower section. The installation assisting system is smart in design, simple in structure and convenient to manufacture; the sizes can be determined according to the conditions such as helicopter models, operation skills of pilots, terrains and weather; and the system and the method can be used in the lifting of various self-standing single-main-material iron towers by helicopters and have strong universality and a wide application range.

Description

technical field [0001] The invention belongs to the field of construction equipment for erecting iron towers of overhead transmission lines, and in particular relates to an auxiliary installation system for erecting iron towers of transmission lines and an erecting method thereof. Background technique [0002] The self-supporting transmission line tower is generally a three-dimensional truss structure composed of hundreds or even thousands of steel sections connected by bolts or rivets. Its cross-section is mostly square or rectangular, and each side is a plane truss. The four main members of the three-dimensional truss of the iron tower are called main materials, and two adjacent main materials are connected by oblique materials and horizontal materials. According to factors such as the use environment, structural form, and force characteristics, some transmission line towers use a single angle steel as the main material, and the connecting angle steel installed on the outs...

AI Technical Summary

Problems solved by technology

However, there is a large gap in the operation skills of helicopter pilots in my country compared with foreign countries, and foreign auxiliary installation systems are not suitable for domestic use. Therefore, it is very important for the successful realization of helicopter towers to develop helicopter tower auxiliary installation systems suitable for domestic use.

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