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Clamping apparatus, drill string component and rock drilling rig

A technology of rock drilling rigs and fixtures, which is applied to drill pipes, drill pipes, drilling equipment and other directions to achieve the effect of less stress

Inactive Publication Date: 2012-11-21
ATLAS COPCO ROCK DRILLS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, one problem with using this type of gripping device is that a substantial portion of the drill string component casing must be easily gripped by the jaws

Method used

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  • Clamping apparatus, drill string component and rock drilling rig
  • Clamping apparatus, drill string component and rock drilling rig
  • Clamping apparatus, drill string component and rock drilling rig

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] figure 1 and 2 A rock drilling rig 1 suitable for use with the present invention is shown. exist figure 1 1, the rock drilling machine 1 has a compartment 5 at its right end for storing drill string components 2' to be loaded into the drill string. The boom assembly 8 comprises assembly means for loading drill string components into the drill string which grows longer during drilling. The assembly means may comprise a set wrench.

[0029] exist figure 2 A front view of a rock drilling rig in the process of drilling is shown in . As shown, the apparatus 1 is used to excavate inclined cylindrical sections of rock formations. Drilling is carried out with the reaming bit 3, and the relatively larger reaming bit 3 and the smaller pilot bit 4 of the diameter are installed together. The pilot bit is used to determine that drilling is in the desired direction throughout the drilling of a particular wellbore. The reaming bit 3 is carried by the drill string 2 and curren...

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PUM

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Abstract

The present invention relates to a clamping apparatus for the usage with a rock drilling rig. The clamping apparatus comprises first and second jaw means for the jaw gripping of a drill string component. The first jaw means comprises a first gripping means, while the second jaw means comprises a second gripping means. The first and second gripping means are used for gripping respective corresponding engagement means of a respective end portion of the drill string component. The clamping apparatus further comprises a jaw actuating means. The engagement means is arranged so as to allow clamping independently of the rotational position of the drill string component as seen with respect to its axis of symmetry.

Description

technical field [0001] The present invention relates to the jig according to the preamble of technical claim 1, the drill string component used with such a jig according to the preamble of technical claim 18, and the drill string component according to the preamble of technical claim 23 including this jig rock drilling rig. Background technique [0002] During rock drilling, a drill string with a reamer bit at its free end must be assembled according to the conditions in which the reamer bit advances into the rock formation. Accordingly, connecting drill string components accordingly to form a drill string is usually accomplished by screwing a new drill string component to the proximal end of an advanced drill string. After the reaming bit is advanced again, new drill string components are likewise added to the proximal end of such advanced drill string, and so on. [0003] Disassembly of the drill string is performed in the opposite manner, ie the drill string is pulled i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B19/14B66C1/62E21BE21B17/00E21B19/20
CPCE21B19/20E21B17/00B66C1/62
Inventor U·肯佩
Owner ATLAS COPCO ROCK DRILLS