METHOD AND DEVICE FOR MEASURING DRILLING DISTANCE AND DRILLING MACHINE

摘要

PROBLEM TO BE SOLVED: To provide a method for measuring a drilling distance through which a drilling distance and a drilling speed can be more minutely and accurately measured and can prevent riability of a drilling machine from being impaired and a device for measuring a drilling distance boring distance used for the method and a drilling machine equipped with the device for measuring the drilling distance. ;SOLUTION: In a drill jumbo 1, a non-contact type displacement meter 51 is fixed to the tip of a guide shell 30 and a sleeve 52 is fixed to a rock drill 40 respectively. reflected light emitted from the non-contact type displacement meter 51 and reflected by the sleeve 52 is received by the non-contact type displacement meter 51 to measure the distance between the displacement meter 51 and the sleeve 52. The displacement of the distance is the moved distance of the rock drill 40 or the drilled distance. As the drilled distance is processed in the central part 53, it is processed as a drilling speed and the speed is displayed on the indicator provided in a driver's seat 11 together with the drilled distance.;COPYRIGHT: (C)2000,JPO