A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Excavator hydraulic system, excavator and control method
The invention discloses a hydraulic control system, an excavator and a control method. The hydraulic control system comprises a pilot cut-off electromagnetic valve and a walking speed change electromagnetic valve which are connected to a hydraulic control loop. The two electromagnetic valves each comprise double coils, namely a first coil and a second coil of the pilot cut-off electromagnetic valve, and a first coil and a second coil of the walking speed change electromagnetic valve. A coil manager is configured to power off the first coil of the pilot cut-off electromagnetic valve at a firstpreset time after the first coil of the pilot cut-off electromagnetic valve is powered on. A controller controls the second coil of the pilot cut-off electromagnetic valve and the double coils of thewalking speed change electromagnetic valve to be powered on or off. The first coil of the pilot cut-off electromagnetic valve is powered on, and the pilot cut-off electromagnetic valve is switched onand kept. The first coil of the walking speed change electromagnetic valve is powered on, and the walking speed change electromagnetic valve is switched on and kept. The problem that the coils need tobe powered on for a long time during working is solved.
本发明公开了一种液压控制系统、挖掘机及控制方法。其中，液压控制系统包括连接于液压控制回路的先导切断电磁阀和行走变速电磁阀；其中所述两种电磁阀分别包括双线圈，分别为先导切断电磁阀第一线圈和先导切断电磁阀第二线圈，行走变速电磁阀第一线圈和行走变速电磁阀第二线圈；线圈管理器被配置为在所述先导切断电磁阀第一线圈上电后的第一预设时间将其断电；控制器控制所述先导切断电磁阀第二线圈和行走变速电磁阀的双线圈上电或断电；其中，所述先导切断电磁阀第一线圈上电，先导切断电磁阀开启并保持；所述行走变速电磁阀第一线圈上电，所述行走变速电磁阀开启并保持。解决线圈工作时需要长时间通电问题。
Excavator hydraulic system, excavator and control method
The invention discloses a hydraulic control system, an excavator and a control method. The hydraulic control system comprises a pilot cut-off electromagnetic valve and a walking speed change electromagnetic valve which are connected to a hydraulic control loop. The two electromagnetic valves each comprise double coils, namely a first coil and a second coil of the pilot cut-off electromagnetic valve, and a first coil and a second coil of the walking speed change electromagnetic valve. A coil manager is configured to power off the first coil of the pilot cut-off electromagnetic valve at a firstpreset time after the first coil of the pilot cut-off electromagnetic valve is powered on. A controller controls the second coil of the pilot cut-off electromagnetic valve and the double coils of thewalking speed change electromagnetic valve to be powered on or off. The first coil of the pilot cut-off electromagnetic valve is powered on, and the pilot cut-off electromagnetic valve is switched onand kept. The first coil of the walking speed change electromagnetic valve is powered on, and the walking speed change electromagnetic valve is switched on and kept. The problem that the coils need tobe powered on for a long time during working is solved.
本发明公开了一种液压控制系统、挖掘机及控制方法。其中，液压控制系统包括连接于液压控制回路的先导切断电磁阀和行走变速电磁阀；其中所述两种电磁阀分别包括双线圈，分别为先导切断电磁阀第一线圈和先导切断电磁阀第二线圈，行走变速电磁阀第一线圈和行走变速电磁阀第二线圈；线圈管理器被配置为在所述先导切断电磁阀第一线圈上电后的第一预设时间将其断电；控制器控制所述先导切断电磁阀第二线圈和行走变速电磁阀的双线圈上电或断电；其中，所述先导切断电磁阀第一线圈上电，先导切断电磁阀开启并保持；所述行走变速电磁阀第一线圈上电，所述行走变速电磁阀开启并保持。解决线圈工作时需要长时间通电问题。
Excavator hydraulic system, excavator and control method
一种挖掘机液压系统、挖掘机及控制方法
ZHOU LIANGFENG (author) / BAI RONG (author) / LUO CHENGFA (author) / HU YONG (author) / YANG JUN (author) / CHEN PINMING (author) / LIU XIAOQIANG (author) / TANG TAO (author) / WANG PENGDA (author) / MA YIQING (author)
2020-12-22
Patent
Electronic Resource
Chinese
IPC:
E02F
Baggern
,
DREDGING
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