Method for optimizing rock drilling
US4671366A · kind A · utility
14Cited by
5References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 21, 1985 |
| Grant date | Jun 9, 1987 |
| Priority date | — |
| Expiry date | May 21, 2005 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B44/02
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method for optimizing percussive drilling, especially rock drilling, in which method the operation of the drilling device is adjusted for a desired drilling result to be obtained. According to the invention, a stress wave created in a drill rod as a result of a stroke is measured and the drilling device is adjusted on the basis of the measured stress wave. The adjusting is carried out e.g. by means of the damping rate or the spectrum of the measured stress wave or the shape of the stress wave and/or the energy fed by the different portions thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.