Method for correcting positioning errors in rock drilling, and rock drilling equipment
US7644782B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 1999 |
| Grant date | Jan 12, 2010 |
| Priority date | — |
| Expiry date | Dec 18, 2023 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B15/045
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention relates to a method for correcting positioning errors in rock drilling, and a rock drilling equipment. Deviation of the boom position from the theoretical position is measured as a function of the position of at least one boom joint, the measured deviations are stored in the memory of the drilling rig, and when the boom is positioned to the drilling position, its position is corrected on the basis of the stored deviation. The drilling equipment includes a memory for storing the deviations between the true position of the boom and the theoretical position calculated on the basis of the joint sensor values, and a calculating device for correcting the boom position on the basis of the deviations stored in the memory of the drilling rig.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.