Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Static pile driver and multistage pile pressing hydraulic control system thereof
The invention discloses a multistage pile pressing hydraulic control system which comprises an oil pump, a main reversing valve, a main oil cylinder and a main quick pressing function valve which form a loop. A valve body of the main quick pressure function valve and a cylinder body of the main oil cylinder are integrally formed; an oil inlet of the main reversing valve is communicated with an oil outlet of the oil pump; when the main reversing valve is located at a first station, an oil inlet of the main reversing valve is communicated with a rodless cavity of the main oil cylinder, and an oil return opening of the main reversing valve is communicated with a rod cavity of the main oil cylinder. When the main reversing valve is located at a second station, an oil inlet of the main reversing valve is communicated with a rod cavity of the main oil cylinder, and an oil return opening of the main reversing valve is communicated with a rodless cavity of the main oil cylinder; when the main fast pressing function valve is located at a fast pressing station, an oil inlet of the main reversing valve is communicated with a rod cavity and a rodless cavity of the main oil cylinder at the same time. Pipeline pressure loss caused by differential regeneration flow of the oil cylinder can be reduced, and energy is saved. The invention further discloses the static pile driver, and the beneficial effects of the static pile driver are as mentioned above.
本发明公开一种多级压桩液压控制系统，包括形成回路的油泵、主换向阀、主油缸、主快压功能阀；所述主快压功能阀的阀体与所述主油缸的缸体一体成型；所述主换向阀的进油口与所述油泵的出油口连通；所述主换向阀处于第一工位时，其进油口与所述主油缸的无杆腔连通，其回油口与所述主油缸的有杆腔连通；所述主换向阀处于第二工位时，其进油口与所述主油缸的有杆腔连通，其回油口与所述主油缸的无杆腔连通；所述主快压功能阀处于快压工位时，所述主换向阀的进油口同时与所述主油缸的有杆腔和无杆腔连通。本发明能够将油缸差动再生流量造成的管路压损减少，节约能源。本发明还公开一种静力压桩机，其有益效果如上所述。
Static pile driver and multistage pile pressing hydraulic control system thereof
The invention discloses a multistage pile pressing hydraulic control system which comprises an oil pump, a main reversing valve, a main oil cylinder and a main quick pressing function valve which form a loop. A valve body of the main quick pressure function valve and a cylinder body of the main oil cylinder are integrally formed; an oil inlet of the main reversing valve is communicated with an oil outlet of the oil pump; when the main reversing valve is located at a first station, an oil inlet of the main reversing valve is communicated with a rodless cavity of the main oil cylinder, and an oil return opening of the main reversing valve is communicated with a rod cavity of the main oil cylinder. When the main reversing valve is located at a second station, an oil inlet of the main reversing valve is communicated with a rod cavity of the main oil cylinder, and an oil return opening of the main reversing valve is communicated with a rodless cavity of the main oil cylinder; when the main fast pressing function valve is located at a fast pressing station, an oil inlet of the main reversing valve is communicated with a rod cavity and a rodless cavity of the main oil cylinder at the same time. Pipeline pressure loss caused by differential regeneration flow of the oil cylinder can be reduced, and energy is saved. The invention further discloses the static pile driver, and the beneficial effects of the static pile driver are as mentioned above.
本发明公开一种多级压桩液压控制系统，包括形成回路的油泵、主换向阀、主油缸、主快压功能阀；所述主快压功能阀的阀体与所述主油缸的缸体一体成型；所述主换向阀的进油口与所述油泵的出油口连通；所述主换向阀处于第一工位时，其进油口与所述主油缸的无杆腔连通，其回油口与所述主油缸的有杆腔连通；所述主换向阀处于第二工位时，其进油口与所述主油缸的有杆腔连通，其回油口与所述主油缸的无杆腔连通；所述主快压功能阀处于快压工位时，所述主换向阀的进油口同时与所述主油缸的有杆腔和无杆腔连通。本发明能够将油缸差动再生流量造成的管路压损减少，节约能源。本发明还公开一种静力压桩机，其有益效果如上所述。
Static pile driver and multistage pile pressing hydraulic control system thereof
一种静力压桩机及其多级压桩液压控制系统
ZENG SU (Autor:in) / XU CAIXING (Autor:in) / ZHOU SHENGGUI (Autor:in)
15.04.2022
Patent
Elektronische Ressource
Chinesisch
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