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Excavator crushing system and control method thereof
The excavator crushing system comprises a main pump, the main pump comprises a pump I, a pump II and a pilot pump, the oil outlet end of the pump I and the oil outlet end of the pump II are connected to the two oil inlet ends of a hydraulic reversing valve respectively, the oil outlet end of the hydraulic reversing valve is connected with a crushing hammer, and a pressure sensor is arranged on a pipeline for connecting the hydraulic reversing valve and the crushing hammer; the pilot control system provides hydraulic control pressure oil for the hydraulic reversing valve, the pilot control system comprises a switching valve and an electromagnetic reversing device, the switching valve is connected with the pilot pump, and two output ends of the electromagnetic reversing device are respectively connected with two control ends of the hydraulic reversing valve; a controller is further included. The two pumps and the control system for controlling the two pumps are arranged, the double pumps are controlled to alternately work according to requirements through a control strategy, the utilization rate of the double pumps and the load of the main pump are distributed in a balanced mode, the failure rate is reduced, and the use efficiency of the double pumps and the safety of the system are improved.
一种挖掘机破碎系统及其控制方法，包括主泵，主泵为双泵包括泵Ⅰ、泵Ⅱ和先导泵，泵Ⅰ和泵Ⅱ的出油端分别连接在液动换向阀的两个进油端，液动换向阀的出油端连接有破碎锤，液动换向阀和破碎锤连接的管路上设有压力传感器；还包括为液动换向阀提供液控压力油的先导控制系统，所述先导控制系统包括连接先导泵的开关阀和电磁换向装置，电磁换向装置的两个输出端分别连接液动换向阀的两个控制端；还包括控制器。本发明设有两个泵以及控制两个泵的控制系统，通过控制策略，控制双泵按照要求交替工作，实现均衡分配双泵的使用率和主泵负载，降低故障率，提高双泵的使用效率和系统的安全性。
Excavator crushing system and control method thereof
The excavator crushing system comprises a main pump, the main pump comprises a pump I, a pump II and a pilot pump, the oil outlet end of the pump I and the oil outlet end of the pump II are connected to the two oil inlet ends of a hydraulic reversing valve respectively, the oil outlet end of the hydraulic reversing valve is connected with a crushing hammer, and a pressure sensor is arranged on a pipeline for connecting the hydraulic reversing valve and the crushing hammer; the pilot control system provides hydraulic control pressure oil for the hydraulic reversing valve, the pilot control system comprises a switching valve and an electromagnetic reversing device, the switching valve is connected with the pilot pump, and two output ends of the electromagnetic reversing device are respectively connected with two control ends of the hydraulic reversing valve; a controller is further included. The two pumps and the control system for controlling the two pumps are arranged, the double pumps are controlled to alternately work according to requirements through a control strategy, the utilization rate of the double pumps and the load of the main pump are distributed in a balanced mode, the failure rate is reduced, and the use efficiency of the double pumps and the safety of the system are improved.
一种挖掘机破碎系统及其控制方法，包括主泵，主泵为双泵包括泵Ⅰ、泵Ⅱ和先导泵，泵Ⅰ和泵Ⅱ的出油端分别连接在液动换向阀的两个进油端，液动换向阀的出油端连接有破碎锤，液动换向阀和破碎锤连接的管路上设有压力传感器；还包括为液动换向阀提供液控压力油的先导控制系统，所述先导控制系统包括连接先导泵的开关阀和电磁换向装置，电磁换向装置的两个输出端分别连接液动换向阀的两个控制端；还包括控制器。本发明设有两个泵以及控制两个泵的控制系统，通过控制策略，控制双泵按照要求交替工作，实现均衡分配双泵的使用率和主泵负载，降低故障率，提高双泵的使用效率和系统的安全性。
Excavator crushing system and control method thereof
一种挖掘机破碎系统及其控制方法
SUN HAIDONG (author) / JIN YUEFENG (author) / SONG MENG (author) / HOU XINYU (author) / WANG SONG (author) / MA YANSEN (author) / FAN YINGJIE (author)
2024-05-24
Patent
Electronic Resource
Chinese
IPC:
E02F
Baggern
,
DREDGING
| European Patent Office | 2015