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Pressure regulating valve and construction machine
The invention provides a pressure regulating valve and a construction machine. The pressure regulating valve is provided with a drive spool that is movable in the axial direction; an electromagnetic proportional valve which has a control spool disposed so as to be movable in a direction different from the axial direction, and disposed on both sides of the drive spool in the axial direction; and aposition compensation mechanism that compensates for the actual position of the drive spool with respect to the command position of the drive spool based on the electromagnetic proportional valve, onthe basis of a displacement in which the position of the drive spool in the axial direction is converted to a direction different from the axial direction.
本发明提供一种压力调整阀和建筑机械。本发明的压力调整阀具备:驱动滑阀芯,其能够在轴向上移动;电磁比例阀,其具有以能够沿与所述轴向不同的方向移动的方式配置的控制滑阀芯,且配置到所述驱动滑阀芯的所述轴向的两侧;以及位置补偿机构,其基于将所述驱动滑阀芯的所述轴向的位置转换到与所述轴向不同的方向的移位,对相对于基于所述电磁比例阀的所述驱动滑阀芯的指令位置的实际的所述驱动滑阀芯的位置进行补偿。
Pressure regulating valve and construction machine
The invention provides a pressure regulating valve and a construction machine. The pressure regulating valve is provided with a drive spool that is movable in the axial direction; an electromagnetic proportional valve which has a control spool disposed so as to be movable in a direction different from the axial direction, and disposed on both sides of the drive spool in the axial direction; and aposition compensation mechanism that compensates for the actual position of the drive spool with respect to the command position of the drive spool based on the electromagnetic proportional valve, onthe basis of a displacement in which the position of the drive spool in the axial direction is converted to a direction different from the axial direction.
本发明提供一种压力调整阀和建筑机械。本发明的压力调整阀具备:驱动滑阀芯,其能够在轴向上移动;电磁比例阀,其具有以能够沿与所述轴向不同的方向移动的方式配置的控制滑阀芯,且配置到所述驱动滑阀芯的所述轴向的两侧;以及位置补偿机构,其基于将所述驱动滑阀芯的所述轴向的位置转换到与所述轴向不同的方向的移位,对相对于基于所述电磁比例阀的所述驱动滑阀芯的指令位置的实际的所述驱动滑阀芯的位置进行补偿。
Pressure regulating valve and construction machine
压力调整阀和建筑机械
IWASAKI HITOSHI (Autor:in)
05.03.2021
Patent
Elektronische Ressource
Chinesisch
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