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A platform for research: civil engineering, architecture and urbanism
Bulldozing hydraulic system with bulldozing blade capable of floating and lifting and excavator
The invention discloses a bulldozing hydraulic system with a floatable and liftable bulldozing blade. The bulldozing hydraulic system comprises an oil tank; a working pump; a dozer blade oil cylinder; the switching device comprises a control assembly and a reversing valve; the control assembly comprises a handle assembly, a first valve, a second valve, a third valve, a first opening, a second opening, a third opening and a fourth opening, the third opening and the fourth opening are connected with the hydraulic control end of the reversing valve, and in the first working state, the first valve is located at the second valve position of the first valve, and the second valve is located at the first valve position of the second valve; in the second working state, the first valve is located at the first valve position, the second valve is located at the second valve position, and the third valve is located at the second valve position; and in the third working state, the first valve is located at the first valve position of the first valve, the second valve is located at the second valve position of the second valve, the third valve is located at the first valve position of the third valve, and oil output by the first oil port of the third valve enables the valve element of the first valve to compress the first compression spring so that the third valve can be kept at the first valve position of the third valve.
本发明公开一种推土铲可浮动升降的推土液压系统，包括：油箱；工作泵；推土铲油缸；切换装置，包括控制组件和换向阀；控制组件包括手柄组件、第一阀、第二阀、第三阀、第一口、第二口和与换向阀的液控端连接的第三口和第四口，在第一工作状态，第一阀处于第一阀第二阀位，第二阀处于第二阀第一阀位；在第二工作状态，第一阀处于第一阀第一阀位，第二阀处于第二阀第二阀位，第三阀处于第三阀第二阀位；在第三工作状态，第一阀处于第一阀第一阀位，第二阀处于第二阀第二阀位，第三阀处于第三阀第一阀位，且第三阀第一油口输出的油液使第一阀的阀芯压缩第一压缩弹簧以使第三阀保持在第三阀第一阀位。
Bulldozing hydraulic system with bulldozing blade capable of floating and lifting and excavator
The invention discloses a bulldozing hydraulic system with a floatable and liftable bulldozing blade. The bulldozing hydraulic system comprises an oil tank; a working pump; a dozer blade oil cylinder; the switching device comprises a control assembly and a reversing valve; the control assembly comprises a handle assembly, a first valve, a second valve, a third valve, a first opening, a second opening, a third opening and a fourth opening, the third opening and the fourth opening are connected with the hydraulic control end of the reversing valve, and in the first working state, the first valve is located at the second valve position of the first valve, and the second valve is located at the first valve position of the second valve; in the second working state, the first valve is located at the first valve position, the second valve is located at the second valve position, and the third valve is located at the second valve position; and in the third working state, the first valve is located at the first valve position of the first valve, the second valve is located at the second valve position of the second valve, the third valve is located at the first valve position of the third valve, and oil output by the first oil port of the third valve enables the valve element of the first valve to compress the first compression spring so that the third valve can be kept at the first valve position of the third valve.
本发明公开一种推土铲可浮动升降的推土液压系统，包括：油箱；工作泵；推土铲油缸；切换装置，包括控制组件和换向阀；控制组件包括手柄组件、第一阀、第二阀、第三阀、第一口、第二口和与换向阀的液控端连接的第三口和第四口，在第一工作状态，第一阀处于第一阀第二阀位，第二阀处于第二阀第一阀位；在第二工作状态，第一阀处于第一阀第一阀位，第二阀处于第二阀第二阀位，第三阀处于第三阀第二阀位；在第三工作状态，第一阀处于第一阀第一阀位，第二阀处于第二阀第二阀位，第三阀处于第三阀第一阀位，且第三阀第一油口输出的油液使第一阀的阀芯压缩第一压缩弹簧以使第三阀保持在第三阀第一阀位。
Bulldozing hydraulic system with bulldozing blade capable of floating and lifting and excavator
推土铲可浮动升降的推土液压系统和挖掘机
DONG YUZHONG (author) / PAN SAISAI (author) / ZHANG FEI (author) / YUE SUHUA (author) / LI JINPENG (author) / AN PENGFEI (author) / REN LU (author)
2024-12-03
Patent
Electronic Resource
Chinese
IPC:
E02F
Baggern
,
DREDGING
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