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A platform for research: civil engineering, architecture and urbanism
Excavator rotary motor, hydraulic system and control method
The invention provides an excavator rotary motor, a hydraulic system and a control method, and the excavator rotary motor structurally comprises a motor main body which is provided with a first oil port and a second oil port; the first one-way valve is communicated with the first oil port and an oil tank of the excavator; the second one-way valve is communicated with the second oil port and an oil tank of the excavator; the first adjustable overflow valve is communicated with the first oil port and the second one-way valve; the second adjustable overflow valve is communicated with the second oil port and the first one-way valve; the proportional pressure reducing valve is communicated with the pilot oil port of the first adjustable overflow valve and the pilot oil port of the second adjustable overflow valve, and the proportional pressure reducing valve is communicated with the oil tank; and the control detection part is connected to the motor main body, and the control detection part is electrically connected with the proportional pressure reducing valve. According to the excavator rotary motor, the hydraulic system and the control method, the problem that constant-pressure starting and constant-pressure braking are difficult to achieve due to the fact that an existing excavator rotary motor is affected by temperature and flow can be solved.
本发明提供一种挖掘机回转马达、液压系统及控制方法，挖掘机回转马达的结构包括马达主体，设置有第一油口和第二油口；第一单向阀，连通于第一油口和挖掘机的油箱；第二单向阀，连通于第二油口和挖掘机的油箱；第一可调溢流阀，连通于第一油口和第二单向阀；第二可调溢流阀，连通于第二油口和第一单向阀；比例减压阀，连通于第一可调溢流阀的先导油口和第二可调溢流阀的先导油口，比例减压阀连通于油箱；以及控制检测部，连接于马达主体，控制检测部与比例减压阀导电连接。该挖掘机回转马达、液压系统及控制方法能够解决现有的挖掘机回转马达由于受温度和流量的影响，难以实现恒压启动和恒压制动的问题。
Excavator rotary motor, hydraulic system and control method
The invention provides an excavator rotary motor, a hydraulic system and a control method, and the excavator rotary motor structurally comprises a motor main body which is provided with a first oil port and a second oil port; the first one-way valve is communicated with the first oil port and an oil tank of the excavator; the second one-way valve is communicated with the second oil port and an oil tank of the excavator; the first adjustable overflow valve is communicated with the first oil port and the second one-way valve; the second adjustable overflow valve is communicated with the second oil port and the first one-way valve; the proportional pressure reducing valve is communicated with the pilot oil port of the first adjustable overflow valve and the pilot oil port of the second adjustable overflow valve, and the proportional pressure reducing valve is communicated with the oil tank; and the control detection part is connected to the motor main body, and the control detection part is electrically connected with the proportional pressure reducing valve. According to the excavator rotary motor, the hydraulic system and the control method, the problem that constant-pressure starting and constant-pressure braking are difficult to achieve due to the fact that an existing excavator rotary motor is affected by temperature and flow can be solved.
本发明提供一种挖掘机回转马达、液压系统及控制方法，挖掘机回转马达的结构包括马达主体，设置有第一油口和第二油口；第一单向阀，连通于第一油口和挖掘机的油箱；第二单向阀，连通于第二油口和挖掘机的油箱；第一可调溢流阀，连通于第一油口和第二单向阀；第二可调溢流阀，连通于第二油口和第一单向阀；比例减压阀，连通于第一可调溢流阀的先导油口和第二可调溢流阀的先导油口，比例减压阀连通于油箱；以及控制检测部，连接于马达主体，控制检测部与比例减压阀导电连接。该挖掘机回转马达、液压系统及控制方法能够解决现有的挖掘机回转马达由于受温度和流量的影响，难以实现恒压启动和恒压制动的问题。
Excavator rotary motor, hydraulic system and control method
一种挖掘机回转马达、液压系统及控制方法
WANG LEI (author) / DONG LIDUI (author) / JING YUTAO (author) / ZHOU JUNAI (author) / YU ZHIWEI (author) / WANG XUELAN (author) / XIE FEI (author)
2024-09-24
Patent
Electronic Resource
Chinese
IPC:
E02F
Baggern
,
DREDGING
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