一种小型电动微耕机的设计

Design of a Small Electric Micro Tiller

针对传统微耕机抖动大、噪音大、行走不方便以及保护措施欠缺等问题,设计了一种小型电动微耕机,设计机具作业幅宽60 cm,作业深度大于8 cm。通过计算,微耕机的动力输出电机选取功率2.2 kW、电压72 V的直流电机,按照作业工况,对微耕机的变速箱、传动比以及齿轮进行了设计,并对关键零部件进行了校核,强度满足设计要求。按照实际工作要求,对电池容量进行估算选型,选用120 A·h锂电池作为供电电池,最终建立整机的三维模型。相比传统的汽油动力和柴油动力,电动式微耕机在茶园、大棚种植等方面优势更加明显,除了无污染,还有振动小、转速可调性等优势,具有广阔的市场应用前景。

In response to the problems of large shaking,high noise,inconvenient walking,and lack of protective measures in traditional micro tillers,a small electric micro tiller was designed,with a designed width of 60 cm and a depth of more than 8 cm.Through calculation,a DC motor with a power of 2.2 kW and a voltage of 72 V was selected as the power output motor of the micro tiller.According to the operating conditions,the gearbox,transmission ratio,and gears of the micro tiller were designed,and key components were verified to meet the design requirements.According to actual work requirements,estimate and select the battery capacity,select 120 A·h lithium battery as the power supply battery,and ultimately establish a three-dimensional model of the entire machine.Electric micro tillers have more obvious advantages compared to traditional gasoline and diesel power in tea gardens and greenhouse planting.In addition to being pollution-free,they also have advantages such as low vibration and adjustable speed,which have broad market prospects.