Electric excavator is a kind of excavation equipment that uses electric energy to work. Compared with the traditional internal combustion engine excavator, it has the advantages of environmental protection and energy saving. This article will introduce the working principle of electric excavators to help buyers better understand this equipment.
Electromotor
The core component of the electric excavator is the motor. By converting electrical energy into mechanical energy, the motor drives various movements and work of the excavator. The selection of the motor needs to consider the excavator's working load, working environment and other factors to achieve the best work efficiency and performance.
Battery pack
Electric excavators use battery packs as energy storage devices. The battery packs store electrical energy and supply it to the motor when needed. At present, common battery types include lead-acid batteries, lithium-ion batteries and so on. The capacity and output power of the battery pack directly affect the working time and performance of the electric excavator. With the continuous progress of battery technology, the endurance and service life of electric excavators are also constantly improving.
Systems control
The work of the electric excavator needs to be realized through system control. System control includes motor start-stop control, motion control, working device control, etc. By controlling the output power and speed of the motor, the movement of the excavator, the tipping bucket, the bucket and other working devices can be realized. System control also includes safety protection functions. Sensors and control loops detect the working status to ensure that the electric excavator is operating within a safe range.
Power transmission
The power transmission mode of electric excavators is different from that of traditional excavators. Traditional excavators usually use hydraulic drive systems. Electric excavators are powered by electric energy. The power transmission of the electric excavator is mainly realized through the motor and the reducer. The motor converts the output of the high-speed rotating motor to the appropriate speed and torque through the reducer, and drives the excavator to carry out various operations.
Сани и XCMG, the two major enterprises of China's electric excavator export, have realized the start and stop of the motor and the motion control through the system control, and also have the safety protection function.
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