Method For Controlling Drilling Unit of Rock Drilling Rig, and Rock Drilling Rig
a drilling rig and drilling pattern technology, applied in the direction of drilling machines and methods, borehole/well accessories, survey, etc., can solve the problems of the rotating angle of the drilling unit determined by the drilling pattern designer, and the inability to use the drilling pattern in practice. , to achieve the effect of simple determination of the rotating angl
Inactive Publication Date: 2013-11-14
SANDVIK MINING & CONSTR OY
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
The invention provides a solution to increase the reliability and speed of drilling operations by using the rotating angles of previously drilled holes to determine the rotating angle of the drilling unit for the next hole. This eliminates the need for operators to manually choose the rotating angle, resulting in quicker drilling times and increased efficiency. The method is simple and can be easily applied to drilling holes in a specific round or in connection with previously drilled holes.
Problems solved by technology
However, the rotating angles of the drilling unit determined by the drilling pattern designer in the drilling pattern are quite seldom useful in a drilling situation in practice.
This may be for instance because the designer of the drilling pattern does not see the practical situation in the rock cavern or even necessarily know the size of the rock drilling rig to be used for drilling a particular round.
Consequently, the designer of the drilling pattern is not in practice capable of determining the rotating angles of the drilling unit for all holes such that it would be possible to drill all the holes by employing the particular rotating angles of the drill unit suggested by the designer of the drilling pattern without the operator of the rock drilling rig having to control the drilling unit into a new rotating angle with respect to no hole at all.
Problems arise particularly at the edges of a rock cavern if the rotating angle of the drilling unit determined in the drilling pattern is such that the drilling unit tries to turn into a position wherein it comes into contact with the edge of the rock cavern, and also in the central part of the rock cavern, where a cut hole is drilled, if the rotating angle of the drilling unit determined in the drilling pattern is such that the drilling unit tries to turn into a position where it collides with the drilling boom of the rock drilling rig.
In addition to these, another problematic situation arises when the rotating angle of the drilling unit given in the drilling pattern is such that the drilling unit tries to turn into a position where the drilling boom prevents the operator of the rock drilling rig from seeing the drill rod of the rock drill provided in the drilling unit when, in practice, the operator of the rock drilling rig wishes to see the drill rod for the purpose of monitoring the drilling and its advance as well as the condition of the drill rod, and for detecting possible water flowing out of the hole.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0023]FIG. 1 is a schematic side view showing a rock drilling rig 1 which may be used for excavating a rock cavern. The rock drilling rig 1 according to FIG. 1 comprises a movable carrier 2, two drilling booms 3, and drilling units 4 arranged in the drilling booms 3. As distinct from FIG. 1, the rock drilling rig 1 may be provided with only one drilling boom 3, or the number of drilling booms 3 may even be more than two. The drilling unit 4, which is shown larger in FIG. 2, comprises a feed beam 5 and, arranged thereon, a rock drill 6 which may be moved with respect to the feed beam 5 by a feed device 22 shown schematically in FIGS. 1 and 2. The drilling unit 4 further comprises a tool 7, such as a drill rod, enabling impact pulses given by a percussion device, which for the sake of clarity is not shown, of the rock drill 6 to be transmitted to a rock 8 to be drilled. The rock drilling rig 1 further comprises at least one control unit 9 configured to control actuators of the rock dr...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
A method for excavating a rock cavern one round at a time and a rock drilling rig for the same. The rock drilling rig includes at least one drilling boom and at least one drilling unit is arranged in the drilling boom. A plurality of holes of a round is drilled in accordance with a drilling pattern designed for the round. In order to drill each single hole, the drilling unit is controlled in a rotating angle that effects a location and direction determined for the particular hole from the drilling pattern designed for the particular round. The rotating angle of the drilling unit to be used for drilling the hole is determined on the basis of the rotating angle of the drilling unit carried out in connection with the drilling of one or more previously drilled holes.
Description
BACKGROUND OF THE INVENTION[0001]The invention relates to a method for controlling at least one drilling unit arranged in at least one drilling boom of a rock drilling rig when excavating a rock cavern one round at a time, the method comprising drilling holes of a round in accordance with a drilling pattern designed for the round, controlling, in order to drill each single hole, the drilling unit into a rotating angle which carries out a location and direction determined in the drilling pattern of the particular round for the particular hole, and storing the rotating angle of the drilling unit carried out during the drilling of each hole of the round.[0002]The invention further relates to a rock drilling rig comprising a movable carrier, at least one drilling boom, at least one drilling unit arranged in the drilling boom, the drilling unit comprising a feed beam and a rock drill, the rock drill being arranged to be movable on the feed beam by means of a feed device, a rotating mecha...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): E21B7/02
CPCE21B7/022E21B7/025E21B44/00
Inventor PUURA, JUSSI
Owner SANDVIK MINING & CONSTR OY