Hydraulic jacking upside-down lifting frame

Abstract

The invention relates to a hydraulic jacking type inversed lifting frame. The hydraulic jacking type inversed lifting frame comprises a pedestal, a machine frame and a hydraulic system, wherein the machine frame is formed by longitudinally assembling at least one pair of monomer brackets; a lower-layer waist ring is also arranged on each of the two opposite sides in the bracket of the lowest end of the machine frame; upper-layer waist rings are horizontally and symmetrically arranged on the inner side of the top end of the highest end of the machine frame; the upper-layer waist rings and the lower-layer waist rings are arranged in parallel up and down in space; at least two pairs of longitudinal guide rails are symmetrically arranged on the inner side of the bracket on the middle section of the machine frame; at least two pairs of hooping rod jacking discs are arranged in the two pairs of guide rails; the hydraulic system comprises a diesel engine, a hydraulic pump station and at least one pair of hydraulic oil cylinders; the hydraulic pump station is connected with the diesel engine; cylinder bodies of the hydraulic oil cylinders are connected with the hydraulic pump station; a piston rod is connected with the lower ends of the hooping rod jacking discs in an assembling way. The hydraulic jacking type inversed lifting frame is reasonable and compact in structural design, simple in mounting, convenient to use, not restrained, good in lifting stability, safe and reliable in use and convenient to construct, and is used for inversely lifting a power construction hooping rod.

Description

technical field [0001] The invention relates to the field of power transmission line construction in power system power transmission and transformation projects, in particular to a hydraulic jacking type inversion lifting frame, which is used for inversion lifting of poles in electric power construction. Background technique [0002] With the continuous development and operation of my country's UHV line construction, the technology for erecting UHV iron towers with ultra-large steel poles continues to mature and improve. During the construction process of the iron tower erected with steel poles, the traditional upside-down hoisting frame with poles adopts a single pulley with a motorized winch to lift the poles. However, for extra-large steel poles with large cross-section, high height (the height of the pole can reach 170 meters), and heavy weight (the height of the pole can reach more than 50 tons), if you continue to use the traditional inverted lifting frame to lift the ...

AI Technical Summary

Problems solved by technology

However, for extra-large steel poles with large cross-section, high height (the height of the pole can reach 170 meters), and heavy weight (the height of the pole can reach more than 50 tons), if you continue to use the traditional inverted lifting frame to lift the pole, the commonly used mobile Most of the winches have a traction force of 5 tons. To lift a large-weight pole, multiple pulleys must be used to reduce the lifting power. Multiple pulleys will cause more and more complicated ropes, and the traction efficiency will be greatly reduced. Synchronization will cause the pole to be deflected during the lifting process, causing jamming and unsafe hidden dangers

Therefore, the traditional upside-down lifting frame for extra-large steel poles can no longer meet the use requirements. Based on this purpose, a hydraulic jacking type upside-down lifting frame is designed.

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