A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Excavator vibration reduction method and device and excavator
The invention provides an excavator vibration reduction method and device and an excavator, and relates to the technical field of engineering machinery. The excavator vibration reduction method comprises the vibration reduction step used for reducing vibration caused by a movable arm, specifically, an external signal is converted into a first electric signal, the first electric signal is output, and the first electric signal is a step signal; the first electric signal is converted into a second electric signal, the second electric signal is output, and the second electric signal is a slope signal or a step signal; and the second electric signal is converted into a hydraulic signal, and the opening speed of a movable arm valve element is controlled based on pilot pressure, represented by the hydraulic signal, of hydraulic oil. The technical problem that in the prior art, the speed changes suddenly in the moving starting and stopping process of an excavator movable arm, and consequentlyan excavator shakes front and back is solved.
本发明提供了一种挖掘机减振方法、装置及挖掘机，涉及工程机械技术领域，该挖掘机减振方法包括用于降低动臂引起振动的减振步骤：将外部信号转换为第一电信号，并输出第一电信号，第一电信号为阶跃信号；将第一电信号转换为第二电信号，并输出第二电信号，第二电信号为斜坡信号或阶梯信号；将第二电信号转换为液压信号，基于液压信号表征的液压油的先导压力控制动臂阀芯的开启速度。解决了现有技术中存在的挖掘机动臂运动启动和停止过程速度发生突变，造成挖掘机前后晃动的技术问题。
Excavator vibration reduction method and device and excavator
The invention provides an excavator vibration reduction method and device and an excavator, and relates to the technical field of engineering machinery. The excavator vibration reduction method comprises the vibration reduction step used for reducing vibration caused by a movable arm, specifically, an external signal is converted into a first electric signal, the first electric signal is output, and the first electric signal is a step signal; the first electric signal is converted into a second electric signal, the second electric signal is output, and the second electric signal is a slope signal or a step signal; and the second electric signal is converted into a hydraulic signal, and the opening speed of a movable arm valve element is controlled based on pilot pressure, represented by the hydraulic signal, of hydraulic oil. The technical problem that in the prior art, the speed changes suddenly in the moving starting and stopping process of an excavator movable arm, and consequentlyan excavator shakes front and back is solved.
本发明提供了一种挖掘机减振方法、装置及挖掘机，涉及工程机械技术领域，该挖掘机减振方法包括用于降低动臂引起振动的减振步骤：将外部信号转换为第一电信号，并输出第一电信号，第一电信号为阶跃信号；将第一电信号转换为第二电信号，并输出第二电信号，第二电信号为斜坡信号或阶梯信号；将第二电信号转换为液压信号，基于液压信号表征的液压油的先导压力控制动臂阀芯的开启速度。解决了现有技术中存在的挖掘机动臂运动启动和停止过程速度发生突变，造成挖掘机前后晃动的技术问题。
Excavator vibration reduction method and device and excavator
挖掘机减振方法、装置及挖掘机
LIU JUNHUA (author) / LU YINGYI (author) / GAO PENGFEI (author)
2020-08-07
Patent
Electronic Resource
Chinese
IPC:
E02F
Baggern
,
DREDGING
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