首页>
外国专利>
A method for positioning a drilling arm mounted on a rock drilling apparatus and apparatus for carrying out the method
A method for positioning a drilling arm mounted on a rock drilling apparatus and apparatus for carrying out the method
展开▼
机译:用于定位安装在凿岩设备上的钻臂的方法以及用于执行该方法的设备
展开▼
页面导航
摘要
著录项
相似文献
摘要
Procedure for positioning a rack drill on a drilling arm by means of a turning or swinging movement of the drill or the drilling arm about two at axes at right angle to each other by which the required turning angle for the axes is set up on an indicator. Subsequently the actual turning angle positions are measured on the axis by a turning indicator which produces a visible indication of the difference between the required and the actual turning angles. Thereafter the drill and the drilling arm are swung about the axis until the required angle and the measured actual angle are equal. The difference in the turning angles is made visible by needle instruments.
展开▼