自动顶-夹式蔬菜穴盘苗取苗装置设计与试验

为了提高蔬菜穴盘苗移栽机的作业效率,设计了一种钵苗体底部先顶出后夹取式自动取苗装置。根据该装置工作特点及取苗农艺要求,对其关键部件进行设计分析,并建立了运动学模型。以理论模型为基础,采用Visual Studio软件开发了取苗装置动作时序分析程序,完成了参数优化。室内试验表明:针对3种不同基质含水率的番茄穴盘苗,该装置能够实现140株/min的取苗速度,成功率超过95%;基质含水率在32.79%时,取苗成功率较高。

Design and Experiment of Fully Automatic Ejection and Picking-up Seedlings Mechanism of Transplanter

In order to improve the efficiency of hole tray seedling transplanter , an ejection-first from the bottom of the matrix and picking-up later mechanism was designed .The key components were analyzed and designed and the kinematic models of the key components were built based on operating feature and agriculture requests .According to the kinematic models and working sequence of the mechanism , a computer-aided operation process analysis system was developed by using the Visual Studio software and the key parameters were optimization designed by this system .Experiment was done on with three different moisture content seedlings .The results showed that the picking-up velocity of this mechanism can reach 140 plants per minute with three different moisture content matrix of tomato seedling ,and the success rates of picking-up were above 95%, success rate of picking-up was relatively high when the moisture content was 32 .79%.