Lifting device for substation maintenance

Abstract

The invention relates to the technical field of lifting devices for substations, in particular to a lifting device for substation maintenance, including a load-bearing chassis and a lifting mechanism arranged on the load-bearing chassis, and a jack and a fixing frame are arranged on the load-bearing chassis The jacking device includes an engine and a hydraulic cylinder; the lifting mechanism includes a lower arm structure arranged on the load-bearing chassis and an upper arm structure connected with the lower arm structure, and the upper arm structure is hydraulic or electric A multi-section folding structure, the upper arm structure includes a first section arm and a second section arm connected to each other, the first section arm is set as a Z-shaped folding arm, and the middle part of the first section arm is set as a telescopic arm structure , the second jib is a fork-shaped jib. The invention changes the lifting mode in the traditional construction process, minimizes the scope of power outages in the maintenance or installation of electric facilities, and effectively solves the contradiction between the construction and maintenance of electric facilities and system safety and reliable power supply.

Description

technical field [0001] The invention relates to the technical field of substation lifting devices, in particular to a lifting device for substation maintenance. Background technique [0002] Cranes are often used for lifting equipment in power station expansion or renovation projects. Ordinary cranes are large in size. The swing and lifting of the lifting arm in the live equipment area is limited by the geographical location of the site and the surrounding live equipment. It is very inconvenient to use and has safety concerns. , Sometimes the power outage range has to be expanded to meet the conditions of use. For example, when replacing a 110KV outdoor current transformer, the current transformer is generally located behind the switch. The lifting height is affected by the passing line above, and the swing angle is limited by the switch; for another example, when replacing the 110KV bus PT, its installation position or the crane cannot reach it, or the lifting height is aff...

AI Technical Summary

Problems solved by technology

[0005] However, although the above-mentioned small-sized lifting device can directly reach the vicinity of the equipment, and adopts the lifting method of lifting, the lifting height is less affected by the live equipment above, and it is flexible, convenient and safe to use, but one is expensive, and the other is The hoisting method is also adopted, and the hoisting height is severely limited in the electrified area

Other products also use lifting methods, and their volume is too large to meet the on-site use of substations. Up to now, the small-scale lifting devices on-site for substation projects that can meet our requirements are still blank in the domestic and foreign markets.

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