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A platform for research: civil engineering, architecture and urbanism
Lifting hydraulic system of excavator driving cab and excavator
The invention discloses a lifting hydraulic system of an excavator driving cab and an excavator. The lifting hydraulic system of the excavator driving cab comprises a hydraulic pump, a lifting oil cylinder, a first reversing valve and an energy accumulator; and the first reversing valve is arranged between the hydraulic pump and the lifting oil cylinder to control action of the lifting oil cylinder, and an oil opening of the energy accumulator is connected with a rodless cavity of the lifting oil cylinder. The end of the rodless cavity of the lifting oil cylinder of the lifting hydraulic system is provided with the energy accumulator, pressure fluctuation in the ascending and descending processes is effectively reduced, accordingly, the stability of ascending and descending of the drivingcab is improved, and the driving experience is improved.
本发明公开了一种挖掘机驾驶室的升降液压系统和挖掘机。挖掘机驾驶室的升降液压系统包括液压泵、升降油缸、第一换向阀和蓄能器，第一换向阀设置于液压泵和升降油缸之间以控制升降油缸动作，蓄能器的油口与升降油缸的无杆腔连接。本发明的升降油缸的无杆腔端增加蓄能器，有效较少上升和下降过程中压力波动，从而提高驾驶室上升和下降的平稳性，进而改善驾驶体验。
Lifting hydraulic system of excavator driving cab and excavator
The invention discloses a lifting hydraulic system of an excavator driving cab and an excavator. The lifting hydraulic system of the excavator driving cab comprises a hydraulic pump, a lifting oil cylinder, a first reversing valve and an energy accumulator; and the first reversing valve is arranged between the hydraulic pump and the lifting oil cylinder to control action of the lifting oil cylinder, and an oil opening of the energy accumulator is connected with a rodless cavity of the lifting oil cylinder. The end of the rodless cavity of the lifting oil cylinder of the lifting hydraulic system is provided with the energy accumulator, pressure fluctuation in the ascending and descending processes is effectively reduced, accordingly, the stability of ascending and descending of the drivingcab is improved, and the driving experience is improved.
本发明公开了一种挖掘机驾驶室的升降液压系统和挖掘机。挖掘机驾驶室的升降液压系统包括液压泵、升降油缸、第一换向阀和蓄能器，第一换向阀设置于液压泵和升降油缸之间以控制升降油缸动作，蓄能器的油口与升降油缸的无杆腔连接。本发明的升降油缸的无杆腔端增加蓄能器，有效较少上升和下降过程中压力波动，从而提高驾驶室上升和下降的平稳性，进而改善驾驶体验。
Lifting hydraulic system of excavator driving cab and excavator
挖掘机驾驶室的升降液压系统和挖掘机
JIAN LIRUI (author) / ZHANG JIAN (author) / HU HENGQIANG (author) / DONG YUZHONG (author) / ZHANG MINGGENG (author) / WANG QUANYONG (author) / LI YADONG (author) / MIAO HENG (author) / LU JIE (author) / FU ZHIHENG (author)
2020-08-25
Patent
Electronic Resource
Chinese
IPC:
E02F
Baggern
,
DREDGING
Distributed hydraulic driving system of excavator and excavator
| European Patent Office | 2024