The feedback spring rod of the armature assembly is cancelled in the double redundance double nozzle flapper valve(DRDNFV),and the difficulty of valve core displacement control is increased.Therefore,this paper intend...The feedback spring rod of the armature assembly is cancelled in the double redundance double nozzle flapper valve(DRDNFV),and the difficulty of valve core displacement control is increased.Therefore,this paper intends to study the static characteristic of DRDNFV through the AMESet and AMESim simulation.It is explored under the circumstance of the fixed orifices being clogged and experimentally verified on the test bench.The results show that the pressure gain increases and the flow gain decreases with the increasing clogged degree of the fixed orifices on both sides.The zero bias increases synchronously with the increasing clogged degree of the unilateral fixed orifice.The experimental results are basically consistent with the theoretical curves and the theoretical correctness of the simulation model is effectively verified.The results can provide the theoretical reference for design,debugging,maintenance and fault diagnosis of DRDNFV.展开更多
以某“2018年北京市智能制造标杆企业(数字化车间)”为研究对象,通过对机器人技术、视觉技术、自动导引车(Automated Guided Vehicle,AGV)技术、射频识别(Radio Frequency Identification,RFID)技术等的应用探索,介绍各项自动化技术在...以某“2018年北京市智能制造标杆企业(数字化车间)”为研究对象,通过对机器人技术、视觉技术、自动导引车(Automated Guided Vehicle,AGV)技术、射频识别(Radio Frequency Identification,RFID)技术等的应用探索,介绍各项自动化技术在液压支架电液控制系统液压阀装配车间的应用。实践证明,各项自动化技术的应用在生产过程中起到了提质、增效、降本的效果,可为煤机制造和液压产品制造中的技术升级提供借鉴。展开更多
基金Supported by the National Natural Science Foundation of China(52075468)the General Project of Natural Science Foundation of Hebei Prov-ince(E2020203052)+1 种基金the Open Fund Project of Shaanxi Provincial Key Laboratory of Hydraulic Technology(YYJS2022KF14)the BasicInnovation Research Cultivation Project of Yanshan University(2021LGZD003)。
文摘The feedback spring rod of the armature assembly is cancelled in the double redundance double nozzle flapper valve(DRDNFV),and the difficulty of valve core displacement control is increased.Therefore,this paper intends to study the static characteristic of DRDNFV through the AMESet and AMESim simulation.It is explored under the circumstance of the fixed orifices being clogged and experimentally verified on the test bench.The results show that the pressure gain increases and the flow gain decreases with the increasing clogged degree of the fixed orifices on both sides.The zero bias increases synchronously with the increasing clogged degree of the unilateral fixed orifice.The experimental results are basically consistent with the theoretical curves and the theoretical correctness of the simulation model is effectively verified.The results can provide the theoretical reference for design,debugging,maintenance and fault diagnosis of DRDNFV.
文摘以某“2018年北京市智能制造标杆企业(数字化车间)”为研究对象,通过对机器人技术、视觉技术、自动导引车(Automated Guided Vehicle,AGV)技术、射频识别(Radio Frequency Identification,RFID)技术等的应用探索,介绍各项自动化技术在液压支架电液控制系统液压阀装配车间的应用。实践证明,各项自动化技术的应用在生产过程中起到了提质、增效、降本的效果,可为煤机制造和液压产品制造中的技术升级提供借鉴。