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A platform for research: civil engineering, architecture and urbanism
Excavator accessory hydraulic control system and excavator
The invention discloses an excavator accessory hydraulic control system and an excavator. The system comprises a main pump; the control main valve comprises a breaking hammer main valve plate, a plurality of auxiliary mechanism main valve plates and a double-pump confluence stop valve; the controller is configured to determine that the breaking hammer main valve plate is located at a working valve position and the auxiliary mechanism main valve plates are located at stop valve positions; a double-pump confluence stop valve is controlled to be conducted, an engine is controlled to operate at the first set rotating speed, and therefore a main pump operates at the first maximum output power; determining that a breaking hammer main valve plate is in a stop valve position and at least one auxiliary mechanism main valve plate is in a working valve position; the double-pump confluence cut-off valve is controlled to be cut off, and the main pump is controlled to operate at the second maximum output power and/or the engine is controlled to operate at the second set rotating speed; wherein the second set rotating speed is larger than the first set rotating speed, and the second maximum output power is larger than the first maximum output power. According to the control hydraulic system, the overall efficiency of crushing operation can be improved.
本申请公开了一种挖掘机属具液压控制系统和挖掘机，系统包括主泵；控制主阀，包括破碎锤主阀片、多个辅助机构主阀片及双泵合流切断阀；控制器，被配置为：确定破碎锤主阀片处于工作阀位且多个辅助机构主阀片处于截止阀位；控制双泵合流切断阀导通，并控制发动机以第一设定转速运转，从而主泵以第一最大输出功率运行；确定破碎锤主阀片处于截止阀位且至少一个辅助机构主阀片处于工作阀位；控制双泵合流切断阀截止，并控制主泵以第二最大输出功率运行和/或控制发动机以第二设定转速运转；其中，第二设定转速大于第一设定转速，第二最大输出功率大于第一最大输出功率。本申请的控制液压系统可提升破碎作业的整体效率。
Excavator accessory hydraulic control system and excavator
The invention discloses an excavator accessory hydraulic control system and an excavator. The system comprises a main pump; the control main valve comprises a breaking hammer main valve plate, a plurality of auxiliary mechanism main valve plates and a double-pump confluence stop valve; the controller is configured to determine that the breaking hammer main valve plate is located at a working valve position and the auxiliary mechanism main valve plates are located at stop valve positions; a double-pump confluence stop valve is controlled to be conducted, an engine is controlled to operate at the first set rotating speed, and therefore a main pump operates at the first maximum output power; determining that a breaking hammer main valve plate is in a stop valve position and at least one auxiliary mechanism main valve plate is in a working valve position; the double-pump confluence cut-off valve is controlled to be cut off, and the main pump is controlled to operate at the second maximum output power and/or the engine is controlled to operate at the second set rotating speed; wherein the second set rotating speed is larger than the first set rotating speed, and the second maximum output power is larger than the first maximum output power. According to the control hydraulic system, the overall efficiency of crushing operation can be improved.
本申请公开了一种挖掘机属具液压控制系统和挖掘机，系统包括主泵；控制主阀，包括破碎锤主阀片、多个辅助机构主阀片及双泵合流切断阀；控制器，被配置为：确定破碎锤主阀片处于工作阀位且多个辅助机构主阀片处于截止阀位；控制双泵合流切断阀导通，并控制发动机以第一设定转速运转，从而主泵以第一最大输出功率运行；确定破碎锤主阀片处于截止阀位且至少一个辅助机构主阀片处于工作阀位；控制双泵合流切断阀截止，并控制主泵以第二最大输出功率运行和/或控制发动机以第二设定转速运转；其中，第二设定转速大于第一设定转速，第二最大输出功率大于第一最大输出功率。本申请的控制液压系统可提升破碎作业的整体效率。
Excavator accessory hydraulic control system and excavator
挖掘机属具液压控制系统和挖掘机
DENG FUJUN (author) / LIU ZHIJIAN (author) / LING DAFANG (author) / YANG FULIN (author) / JIN CHENG (author)
2023-04-25
Patent
Electronic Resource
Chinese
IPC:
E02F
Baggern
,
DREDGING
Multifunctional accessory control system of excavator and excavator
| European Patent Office | 2023
| European Patent Office | 2022