A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a hydraulic system of an excavator and the excavator. The hydraulic system comprises a first oil pump, a second oil pump, a getting-on control assembly, a getting-off control assembly, an oil supply public oil way and an oil adjusting valve set. The getting-off control assembly comprises a left walking device and a right walking device. The oil adjusting valve group comprises first to third left oil adjusting ports, first and second right oil adjusting ports, and left and right oil adjusting oil inlets respectively connected with the first and second oil pumps. And the first and third left oil adjusting ports are connected with the left walking device. The second left oil adjusting port and the second right oil adjusting port are connected with the oil supply public oil way. And the first right oil adjusting port is connected with the right walking device. And the oil adjusting left oil inlet is communicated with the second left oil adjusting port. And the right oil adjusting inlet is communicated with the first right oil adjusting port. And in the first working state, the oil adjusting left oil inlet is communicated with the first left oil adjusting port, and the oil adjusting right oil inlet is communicated with the second right oil adjusting port. And in the second working state, the oil adjusting left oil inlet is communicated with the second right oil adjusting port, and the oil adjusting right oil inlet is communicated with the third left oil adjusting port. And the overall coordination is improved.
本申请公开了一种挖掘机的液压系统和挖掘机。液压系统包括第一和第二油泵、上车和下车控制组件、供油公共油路和调油阀组。下车控制组件包括左、右行走装置。调油阀组包括第一至第三左调油口、第一、第二右调油口以及分别与第一、第二油泵连接的调油左、右进油口。第一、第三左调油口与左行走装置连接。第二左调油口和第二右调油口与供油公共油路连接。第一右调油口与右行走装置连接。调油左进油口与第二左调油口连通。调油右进油口与第一右调油口连通。在第一工作状态，调油左进油口与第一左调油口连通，调油右进油口与第二右调油口连通。在第二工作状态，调油左进油口与第二右调油口连通，调油右进油口与第三左调油口连通。提高整体协调性。
The invention discloses a hydraulic system of an excavator and the excavator. The hydraulic system comprises a first oil pump, a second oil pump, a getting-on control assembly, a getting-off control assembly, an oil supply public oil way and an oil adjusting valve set. The getting-off control assembly comprises a left walking device and a right walking device. The oil adjusting valve group comprises first to third left oil adjusting ports, first and second right oil adjusting ports, and left and right oil adjusting oil inlets respectively connected with the first and second oil pumps. And the first and third left oil adjusting ports are connected with the left walking device. The second left oil adjusting port and the second right oil adjusting port are connected with the oil supply public oil way. And the first right oil adjusting port is connected with the right walking device. And the oil adjusting left oil inlet is communicated with the second left oil adjusting port. And the right oil adjusting inlet is communicated with the first right oil adjusting port. And in the first working state, the oil adjusting left oil inlet is communicated with the first left oil adjusting port, and the oil adjusting right oil inlet is communicated with the second right oil adjusting port. And in the second working state, the oil adjusting left oil inlet is communicated with the second right oil adjusting port, and the oil adjusting right oil inlet is communicated with the third left oil adjusting port. And the overall coordination is improved.
本申请公开了一种挖掘机的液压系统和挖掘机。液压系统包括第一和第二油泵、上车和下车控制组件、供油公共油路和调油阀组。下车控制组件包括左、右行走装置。调油阀组包括第一至第三左调油口、第一、第二右调油口以及分别与第一、第二油泵连接的调油左、右进油口。第一、第三左调油口与左行走装置连接。第二左调油口和第二右调油口与供油公共油路连接。第一右调油口与右行走装置连接。调油左进油口与第二左调油口连通。调油右进油口与第一右调油口连通。在第一工作状态，调油左进油口与第一左调油口连通，调油右进油口与第二右调油口连通。在第二工作状态，调油左进油口与第二右调油口连通，调油右进油口与第三左调油口连通。提高整体协调性。
Excavator main valve, excavator hydraulic system and excavator
| European Patent Office | 2023