Charging type electric hydraulic excavator
The utility model discloses a charging type electric hydraulic excavator which comprises an excavator body, a hydraulic system and a power device providing power for a hydraulic pump of the hydraulic system. The power device is a variable frequency motor, and the motor is connected with a storage ba...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The utility model discloses a charging type electric hydraulic excavator which comprises an excavator body, a hydraulic system and a power device providing power for a hydraulic pump of the hydraulic system. The power device is a variable frequency motor, and the motor is connected with a storage battery through an inverter. According to the charging type electric hydraulic excavator, the storage battery serves as an energy storage unit, the variable frequency motor serves as a power source of the excavator to drive the hydraulic pump to work, fuel oil does not need to be used, and the excavator can achieve high working efficiency, low maintenance cost, low noise pollution and zero exhaust gas emission. |
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