Device for handling drill string components with respect to a rock drill rig and a rock drill rig
US10100592B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 26, 2014 |
| Grant date | Oct 16, 2018 |
| Priority date | — |
| Expiry date | Nov 17, 2034 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B19/161
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A device for handling drill string components with respect to a drill rig. A gripper is configured to grip a first drill string component to be threaded on to or off from a second drill string component being part of a drill string which is partly drilled into a rock formation. A handling unit includes the gripper is movable between a drill string position and a loading position wherein a drill string component can be brought into or taken out from the gripper. The handing unit includes auxiliary engagement unit configured to align the gripped first drill string component to essentially in line with an axial direction defined by the second drill string component. The gripper and the auxiliary engagement unit are adjustable for gripping drill string components of different dimensions with maintained alignment of gripped drill string components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.