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A platform for research: civil engineering, architecture and urbanism
Walking confluence control system and control method for wheel excavator
The invention discloses a walking confluence control system and method for a wheel excavator. The walking confluence control system comprises an engine, a main pump assembly, a pilot valve set, a main valve, a walking motor and a walking confluence valve. The engine is used for driving the main pump assembly; the main pump assembly comprises a first main pump and a second main pump and is used for supplying oil to the main valve; the main valve comprises a walking valve element and a second valve element, the walking valve element is connected with the pilot valve set and the walking motor, and the pilot valve set controls the walking valve element to reverse so that the walking motor can rotate forwards or backwards. The main pump assembly is connected with the main valve through the walking flow collecting valve, and the walking flow collecting valve is used for adjusting the oil output direction of the first main pump and the second main pump, so that the first main pump supplies oil to the second valve element in the working mode, and the second main pump supplies oil to the walking valve element in the working mode. In the walking mode, the first main pump and the second main pump converge to supply oil to the walking valve element. The rotating speed of the engine and the displacement of the main pump are reduced through double-pump confluence, fuel consumption and noise of the vehicle are greatly reduced, and the vehicle is more energy-saving and comfortable.
本发明公开了一种轮式挖掘机行走合流控制系统及控制方法，包括发动机、主泵总成、先导阀组、主阀、行走马达和行走合流阀；所述发动机用于驱动主泵总成；所述主泵总成包括第一主泵和第二主泵，用于给主阀供油；所述主阀包括行走阀芯和第二阀芯，所述行走阀芯分别连接先导阀组和行走马达，所述先导阀组控制行走阀芯换向使行走马达正转或反转；所述主泵总成通过行走合流阀连接主阀，所述行走合流阀用于调节第一主泵、第二主泵的输出油走向，使工作模式下第一主泵为第二阀芯供油，第二主泵为行走阀芯供油；行走模式下第一主泵和第二主泵合流，为行走阀芯供油。通过双泵合流降低发动机的转速和主泵的排量，大幅降低车辆油耗和噪音，更加节能、舒适。
Walking confluence control system and control method for wheel excavator
The invention discloses a walking confluence control system and method for a wheel excavator. The walking confluence control system comprises an engine, a main pump assembly, a pilot valve set, a main valve, a walking motor and a walking confluence valve. The engine is used for driving the main pump assembly; the main pump assembly comprises a first main pump and a second main pump and is used for supplying oil to the main valve; the main valve comprises a walking valve element and a second valve element, the walking valve element is connected with the pilot valve set and the walking motor, and the pilot valve set controls the walking valve element to reverse so that the walking motor can rotate forwards or backwards. The main pump assembly is connected with the main valve through the walking flow collecting valve, and the walking flow collecting valve is used for adjusting the oil output direction of the first main pump and the second main pump, so that the first main pump supplies oil to the second valve element in the working mode, and the second main pump supplies oil to the walking valve element in the working mode. In the walking mode, the first main pump and the second main pump converge to supply oil to the walking valve element. The rotating speed of the engine and the displacement of the main pump are reduced through double-pump confluence, fuel consumption and noise of the vehicle are greatly reduced, and the vehicle is more energy-saving and comfortable.
本发明公开了一种轮式挖掘机行走合流控制系统及控制方法，包括发动机、主泵总成、先导阀组、主阀、行走马达和行走合流阀；所述发动机用于驱动主泵总成；所述主泵总成包括第一主泵和第二主泵，用于给主阀供油；所述主阀包括行走阀芯和第二阀芯，所述行走阀芯分别连接先导阀组和行走马达，所述先导阀组控制行走阀芯换向使行走马达正转或反转；所述主泵总成通过行走合流阀连接主阀，所述行走合流阀用于调节第一主泵、第二主泵的输出油走向，使工作模式下第一主泵为第二阀芯供油，第二主泵为行走阀芯供油；行走模式下第一主泵和第二主泵合流，为行走阀芯供油。通过双泵合流降低发动机的转速和主泵的排量，大幅降低车辆油耗和噪音，更加节能、舒适。
Walking confluence control system and control method for wheel excavator
一种轮式挖掘机行走合流控制系统及控制方法
CUI GUANGWEI (author) / WANG JINQIANG (author) / MENG FANJIAN (author)
2023-02-28
Patent
Electronic Resource
Chinese
IPC:
E02F
Baggern
,
DREDGING
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