Design and simulation of mountain pepper harvester's hydraulic system
Guizhou is typical of karst landform in China,and pepper is mostly planted on the sloping land.Currently,the pepper harvesters fail to meet the requirements of harvesting in Guizhou.Therefore,in this article a fully-hydraulic self-walking tracked pepper-harvester prototype is designed and manufactured,which is suitable for mountain areas.The hydraulic systems of the mountain pepper harvester's key parts are subject to calculation and type selection;the AMESim hydraulic simulation software is used to model and simulate the hydraulic systems of both the walking mechanism and the harvesting mechanism.The results show that the start-up time of the walking motor is 0.52 s,and the motor flow is stable at 117.9 L/min.The motor speed of the picking roller is stable at 210 r/min;the lifting time of the pressing-roller oil cylinder,the ground-wheel oil cylinder and the lift-ing oil cylinder is 2.2,3.2 and 2 s respectively;the pressure of the oil cylinder is stable at 16 MPa.It is concluded that the start-up time of both the walking mechanism and the harvesting mechanism is short and stable,which can meet the design and uti-lization requirements of the hydraulic systems.This study aims to provide theoretical basis for the improvement and optimization design of hydraulic systems of mountain pepper harvesters and other mountain machinery.
mountain pepper harvesterhydraulic systemcalculation and type selectionAMESim simulation
NETL
NSTL
万方数据
