采用岩心钻机改装成大口径工程钻机应注意的问题

Considerations on Conversion of Core Drills to Construction Drills

岩心钻机改装成大口径工程钻机已取得成功，但在实际使用中，圆锥齿轮经常损坏。分析了影响钻机上圆锥齿轮使用寿命的因素，并提出了改进措施。

Core drills are suooessfully converted to large diameter construction drills.However the bevel gears areoften worn out in field application. An analpsis is made on factors influendng the service life of bevel gearswith the improvenent measures proposed.