Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Excavator working device hydraulic system and excavator
The invention belongs to the technical field of engineering machinery, and discloses an excavator working device hydraulic system and an excavator, the excavator working device hydraulic system comprises an oil tank, an oil pump, an oil transportation reversing valve, a bucket rod oil cylinder and an oil liquid distribution assembly, the oil tank is communicated with an oil inlet of the oil pump, and an oil outlet of the oil pump is communicated with an oil inlet of the oil transportation reversing valve; one working oil port of the oil transportation reversing valve is communicated with a rodless cavity of the bucket rod oil cylinder through the oil liquid distribution assembly, and the other working oil port of the oil transportation reversing valve is communicated with a rod cavity of the bucket rod oil cylinder through the oil liquid distribution assembly. According to the hydraulic system of the excavator working device, the hydraulic oil in the oil tank is conveyed to the rodless cavity of the bucket rod oil cylinder through the oil liquid distribution assembly so as to push the piston rod of the bucket rod oil cylinder to extend outwards; and the oil liquid distribution assembly can carry out oil pipe on-off control so as to convey hydraulic oil output by the rod cavity of the bucket rod oil cylinder into the rodless cavity of the bucket rod oil cylinder again, so that the outward extending speed of the piston rod is increased, and then the working efficiency of the excavator is improved.
本发明属于工程机械技术领域，公开了一种挖掘机工作装置液压系统及挖掘机，挖掘机工作装置液压系统包括油箱、油泵、输油换向阀、斗杆油缸和油液分配组件，油箱连通油泵的进油口，油泵的出油口连通输油换向阀的进油口，输油换向阀的其中一工作油口通过油液分配组件与斗杆油缸的无杆腔连通，输油换向阀的另一工作油口通过油液分配组件与斗杆油缸的有杆腔连通。本发明提供的挖掘机工作装置液压系统，油箱内的液压油经油液分配组件输送至斗杆油缸的无杆腔以推动斗杆油缸的活塞杆外伸，且油液分配组件能够进行油管通断控制以将经斗杆油缸的有杆腔输出的液压油再次输送至斗杆油缸的无杆腔内以增加活塞杆的外伸速度，进而提升挖掘机的作业效率。
Excavator working device hydraulic system and excavator
The invention belongs to the technical field of engineering machinery, and discloses an excavator working device hydraulic system and an excavator, the excavator working device hydraulic system comprises an oil tank, an oil pump, an oil transportation reversing valve, a bucket rod oil cylinder and an oil liquid distribution assembly, the oil tank is communicated with an oil inlet of the oil pump, and an oil outlet of the oil pump is communicated with an oil inlet of the oil transportation reversing valve; one working oil port of the oil transportation reversing valve is communicated with a rodless cavity of the bucket rod oil cylinder through the oil liquid distribution assembly, and the other working oil port of the oil transportation reversing valve is communicated with a rod cavity of the bucket rod oil cylinder through the oil liquid distribution assembly. According to the hydraulic system of the excavator working device, the hydraulic oil in the oil tank is conveyed to the rodless cavity of the bucket rod oil cylinder through the oil liquid distribution assembly so as to push the piston rod of the bucket rod oil cylinder to extend outwards; and the oil liquid distribution assembly can carry out oil pipe on-off control so as to convey hydraulic oil output by the rod cavity of the bucket rod oil cylinder into the rodless cavity of the bucket rod oil cylinder again, so that the outward extending speed of the piston rod is increased, and then the working efficiency of the excavator is improved.
本发明属于工程机械技术领域，公开了一种挖掘机工作装置液压系统及挖掘机，挖掘机工作装置液压系统包括油箱、油泵、输油换向阀、斗杆油缸和油液分配组件，油箱连通油泵的进油口，油泵的出油口连通输油换向阀的进油口，输油换向阀的其中一工作油口通过油液分配组件与斗杆油缸的无杆腔连通，输油换向阀的另一工作油口通过油液分配组件与斗杆油缸的有杆腔连通。本发明提供的挖掘机工作装置液压系统，油箱内的液压油经油液分配组件输送至斗杆油缸的无杆腔以推动斗杆油缸的活塞杆外伸，且油液分配组件能够进行油管通断控制以将经斗杆油缸的有杆腔输出的液压油再次输送至斗杆油缸的无杆腔内以增加活塞杆的外伸速度，进而提升挖掘机的作业效率。
Excavator working device hydraulic system and excavator
一种挖掘机工作装置液压系统及挖掘机
ZHANG JIANYONG (Autor:in) / SUN DONGDONG (Autor:in) / YU ZHIWEI (Autor:in) / WANG BAOQIANG (Autor:in) / KANG HUI (Autor:in) / ZHANG FENG (Autor:in) / XU TENGFEI (Autor:in) / QI SHENGRAN (Autor:in)
02.05.2023
Patent
Elektronische Ressource
Chinesisch
Excavator main valve, excavator hydraulic system and excavator
| Europäisches Patentamt | 2023