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A platform for research: civil engineering, architecture and urbanism
Excavator traveling control system, electric control excavator and traveling safety control method
The invention provides an excavator traveling control system, an electric control excavator and a traveling safety control method, and relates to the technical field of engineering machinery. According to the excavator traveling control system, a flow sensor is arranged between a traveling main valve element and a traveling motor, the flow sensor is electrically connected with a controller, the controller is electrically connected with a pilot valve, the pilot valve is connected to the two ends of the traveling main valve element, when the actual flow detected by the flow sensor is greater than preset flow, the controller controls the pilot valve to reduce pilot pressure so as to reduce the opening degree of the traveling main valve element, and then the actual flow is reduced till the actual flow is not larger than the preset flow. The electric control excavator comprises the excavator traveling control system. The excavator traveling control system can prevent the traveling motor from overspeed, avoid affecting the service life of the motor and reduce potential safety hazards.
本发明提供了一种挖掘机行走控制系统、电控挖掘机和行走安全控制方法，涉及工程机械技术领域。挖掘机行走控制系统中，流量传感器设置于行走主阀芯和行走马达之间，流量传感器与控制器电连接，控制器与先导阀电连接，先导阀连接于行走主阀芯的两端，在流量传感器检测的实际流量大于预设流量时，控制器控制先导阀减小先导压力以减小行走主阀芯的开度，进而降低实际流量，直至实际流量不大于预设流量。电控挖掘机包括挖掘机行走控制系统。挖掘机行走控制系统能够防止行走马达超速，避免影响马达寿命，降低安全隐患。
Excavator traveling control system, electric control excavator and traveling safety control method
The invention provides an excavator traveling control system, an electric control excavator and a traveling safety control method, and relates to the technical field of engineering machinery. According to the excavator traveling control system, a flow sensor is arranged between a traveling main valve element and a traveling motor, the flow sensor is electrically connected with a controller, the controller is electrically connected with a pilot valve, the pilot valve is connected to the two ends of the traveling main valve element, when the actual flow detected by the flow sensor is greater than preset flow, the controller controls the pilot valve to reduce pilot pressure so as to reduce the opening degree of the traveling main valve element, and then the actual flow is reduced till the actual flow is not larger than the preset flow. The electric control excavator comprises the excavator traveling control system. The excavator traveling control system can prevent the traveling motor from overspeed, avoid affecting the service life of the motor and reduce potential safety hazards.
本发明提供了一种挖掘机行走控制系统、电控挖掘机和行走安全控制方法，涉及工程机械技术领域。挖掘机行走控制系统中，流量传感器设置于行走主阀芯和行走马达之间，流量传感器与控制器电连接，控制器与先导阀电连接，先导阀连接于行走主阀芯的两端，在流量传感器检测的实际流量大于预设流量时，控制器控制先导阀减小先导压力以减小行走主阀芯的开度，进而降低实际流量，直至实际流量不大于预设流量。电控挖掘机包括挖掘机行走控制系统。挖掘机行走控制系统能够防止行走马达超速，避免影响马达寿命，降低安全隐患。
Excavator traveling control system, electric control excavator and traveling safety control method
挖掘机行走控制系统、电控挖掘机和行走安全控制方法
GUO CHANGZHEN (author) / WU RONGWEI (author) / WU JINHE (author)
2020-05-19
Patent
Electronic Resource
Chinese
IPC:
E02F
Baggern
,
DREDGING
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