Externally-powered electric engineering machinery

Abstract

The invention provides externally-powered electric engineering machinery. The externally-powered electric engineering machinery comprises a mobile power supply vehicle and an electric engineering machine. The mobile power supply vehicle comprises a mobile vehicle body. A power unit and a cable take-up and pay-off device are mounted on the vehicle body. The electric engineering machine comprises an engineering vehicle body capable of moving freely, wherein an electric motor, a power control device, an operation control center and a power collection arm are arranged in the vehicle body. By adopting the externally-powered electric engineering machinery, the problem of cable connection between power supply equipment and electric equipment when electric engineering machinery moves to work is solved; it is guaranteed that cables do not hinder free movement of the electric equipment within a certain scope, and reliable electric power supply is guaranteed; and the externally-powered electric engineering machinery is good in work rotation capability and high in environmental adaptability, and the advantages are more obvious in working regions with oil and gas shortage. Meanwhile, the power supply equipment and the electric equipment can conduct signal communication, and use safety of the cables is ensured.

Description

technical field [0001] The invention belongs to the technical field of construction machinery equipment, and relates to construction machinery technology, communication technology and control technology of an externally powered electric construction machine. Background technique [0002] Traditional mobile vehicles such as construction machinery and automobiles generally have the disadvantages of relying on oil resources and causing heavy pollution. Electrification has become an important development direction of mobile vehicles. In addition, in some special areas of our country, the power resources are particularly abundant, and the electricity price is very cheap. Using electric vehicles is not only convenient and reliable, but also greatly reduces energy consumption and operating costs. As my country's urban construction becomes more and more mature, electric vehicles with convenient power supply, household use, small and micro engineering use, or other special occasions...

AI Technical Summary

Problems solved by technology

Since the orientation and distance between the power supply vehicle and the electric vehicle are changing, and due to the frequent movement and turning of the excavator during operation, and the frequent rotation of the boarding system of the excavator relative to the disembarking system, when the power supply passes through the cable from the power supply When the car is transferred to the excavator, it will cause problems such as cable winding, bending, cable and ground obstacles, cable and machine interference, friction, etc.

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