滚珠丝杠传动的土壤圆锥指数仪设计  

Soil Cone Penetrometer with Ball Screw Transmission

作　　者：孟繁佳[1] 马道坤[1] 孙宇瑞[1] 

机构地区：[1]中国农业大学精细农业研究中心,北京100083

出　　处：《农业机械学报》2009年第5期52-55,共4页Transactions of the Chinese Society for Agricultural Machinery

基　　金：国家"863"高技术研究发展计划资助项目(2006AA10Z205);科技部国际合作项目(2007DFA91050)

摘　　要：设计了一种应用滚珠丝杠传动、直流电动机驱动的恒速(30 mm/s)土壤圆锥指数测量装置。将电动机驱动滚珠丝杠传动方式应用于土壤参数测量装置,具有较高的运行控制精度和机械传动效率。在机电一体化设计方面,研制的专用微控制器既负责协调土壤坚实度信息与纵向行进深度动态信息的实时获取和运行状态监控,又同时与GPS模块和PDA连接。充分利用PDA提供的软硬件资源,可实现农田数据的大容量存储和智能化信息处理。田间试验表明,该仪器具有较高的可靠性和实用性。A motor-operated penetrometer with novel structure and constant-velocity （30 mm/s） was developed. The major innovation was to employ ball screw as transmission component of penetration force so that the higher control accuracy and operating efficiency could be simultaneously obtained. Moreover, a microcomputer-based controller associated with GPS and PDA was designed to coordinate the soil penetration resistance and the depth measurements at real-time and to monitor the operating status of the penetrometer. By using of the available hardware and software provided by PDA, the data capacity and the processing ability of field information was significantly improved.

关 键 词：土壤 圆锥指数 测量装置 坚实度 滚珠丝杠 

分 类 号：S237[农业科学—农业机械化工程]