石质山地手提式挖坑机钻头的研制  

The Study and Development of the Portable Earth Auger Bits

作　　者：茅也冰[1] 王乃康[1] 鲍际平 

机构地区：[1]北京林业大学森林工业系

出　　处：《北京林业大学学报》1991年第3期42-49,共8页Journal of Beijing Forestry University

摘　　要：本文通过对研制的几种手提式挖坑机钻头的结构特点、参数选择、刀片及钻尖的型式、材料及热处理工艺等所进行的理论分析及生产试验,证明了所研制的钻头在含石砾量40％～60％的陡坡石质山地的挖坑整地作业中,具有良好的适应性,钻头入土快、生产效率高、成本低、劳动强度低、各项指标达到林业技术要求。This paper examines the portable earth auger bit, its manufacture, operating environment and efficiency. The bit is used in steep rocky mountain areas which contain 40％～60％ stone. The bits studied showed to have high productivity, a quicker digging speed, low cost, low labour intensity, and met forestry requirements in all other parameters.

关 键 词：挖坑机 钻头 钻头 刀片 林业机械 

分 类 号：S776.262[农业科学—森林工程]