CA2799724A1 - Rock drilling machine, removable cartridge, stop ring and drilling rig - Google Patents
Rock drilling machine, removable cartridge, stop ring and drilling rig Download PDFInfo
- Publication number
- CA2799724A1 CA2799724A1 CA2799724A CA2799724A CA2799724A1 CA 2799724 A1 CA2799724 A1 CA 2799724A1 CA 2799724 A CA2799724 A CA 2799724A CA 2799724 A CA2799724 A CA 2799724A CA 2799724 A1 CA2799724 A1 CA 2799724A1
- Authority
- CA
- Canada
- Prior art keywords
- stop ring
- drilling machine
- front part
- rock drilling
- removable cartridge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 46
- 239000011435 rock Substances 0.000 title claims abstract description 38
- 238000007789 sealing Methods 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B6/00—Drives for drilling with combined rotary and percussive action
- E21B6/02—Drives for drilling with combined rotary and percussive action the rotation being continuous
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B6/00—Drives for drilling with combined rotary and percussive action
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
- B25D17/005—Attachments or adapters placed between tool and hammer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
- B25D17/08—Means for retaining and guiding the tool bit, e.g. chucks allowing axial oscillation of the tool bit
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B1/00—Percussion drilling
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
- Percussive Tools And Related Accessories (AREA)
Abstract
The invention relates to a rock drilling machine comprising a front part (1a), a removable cartridge (5) arranged in the front part (1a), a shank adapter (3) and a stop ring (4) for the shank adapter (3). According to the invention, the diameter of the removable cartridge (5) is at least as great as the diameter of the stop ring (4), such that it is possible during demounting of the removable cartridge (5) to mount or demount the stop ring (4), without removing the front part (1 a) from the rock drilling machine. The invention also relates to a removable cartridge (5), a stop ring (4) and a drilling rig incorporating the drilling machine.
Description
ROCK DRILLING MACHINE, REMOVABLE CARTRIDGE, STOP
RING AND DRILLING RIG
TECHNICAL AREA
The present invention relates to a rock drilling machine, such as a top hammer, according to the preamble of claim 1.
THE PRIOR ART
Pressure waves are produced during down-the-hole drilling in the immediate vicinity of the drill bit of a down-the-hole drilling machine. It is namely the case during down-the-hole drilling that the impact mechanism is located at the bottom of the drill string in the drill hole, at the drill bit. The impact mechanism impacts directly on the drill bit.
During top hammer drilling, a piston moves in a reciprocating motion and impacts on a shank adapter of a top hammer. Furthermore, rotation is transferred to the shank adapter from a rotary motor. Impact energy and rotation are subsequently transferred from the shank adapter through one or several drill rods and a drill bit to the rock, such that a borehole is created. The rotary motor and the impact mechanism are located at surface level in a top hammer. If the drill bit impacts air instead of rock - known as a idle impact -because, for example, the drill bit encounters a cavity in the rock or because it is necessary to hammer free the threads between the drill rods, a stop ring prevents the shank adapter from moving forwards too much in the axial direction, and this reduces the risk of damage to the shank adapter. The stop ring is in this way subject to heavy loads.
The drilling cuttings that are broken loose during rock drilling must be continuously transported away from the borehole. This is carried out with the aid of a flushing medium, for example air or water, which in the front part of a top hammer is led in to the shank adapter through a flush connector and a flush housing. The flushing medium then passes through a passage in the shank adapter and the drill rods and finally passes out through the drill bit to the borehole, whereby the drilling cuttings are flushed out through the space between the drill rods and the edges of the borehole. An example of how this is achieved can be seen in W02009/148375, where the front part is provided with a sealing cartridge comprising a flush housing, a front guide and a cover plate.
This cartridge makes it possible to exchange flush seals without removing the complete front part.
One problem with the rock drilling machine revealed by W02009/148375 is that also the shank adapter and its stop ring have short lifetimes and need to be changed at regular intervals. Each change of a shank adapter requires the complete front part to be demounted from the rock drilling machine. This means that a number of side bolts must be undone and, most importantly, that the operator needs to lift a relatively heavy load, which the front part with its stop ring, shank adapter, etc. constitutes.
DESCRIPTION OF THE INVENTION
The purpose of the present invention is to achieve a rock drilling machine, such as a top hammer, that solves the problems described above. The rock drilling machine comprises a front part, a removable cartridge arranged in the front part, a shank adapter and a stop ring for the shank adapter. According to the invention, the diameter of the removable cartridge is at least equal to the diameter of the stop ring. This makes it possible during demounting of the removable cartridge to mount or demount the stop ring, without removing the front part from the rock drilling machine. In this way, mounting and demounting can take place more rapidly and more easily, and - not least - with less burden for the operator.
DESCRIPTION OF DRAWINGS
The invention will now be described in more detail with the aid of a preferred embodiment and with reference to the attached drawings, of which:
Figure 1 shows a side view of a front part of an assembled rock drilling machine where the stop ring is in the locked condition, Figure 2 shows a side view of a front part of a rock drilling machine according to Figure 1 where a sealing cartridge has been demounted where a stop ring is in its locked condition, Figure 3 shows a side view of a front part of a rock drilling machine according to Figure 1 where a sealing cartridge and a lock ring have been demounted and where a stop ring is in its open condition, Figures 4a-b show a front part of a rock drilling machine seen from behind, where a stop ring is in its open condition, and Figures 5a-b show a front part of a rock drilling machine seen from behind, where a stop ring is in its locked condition.
PREFERRED EMBODIMENT
Figures 1-3 show a front part 1 a of a rock drilling machine, such as a top hammer, according to the invention. The rock drilling machine is assembled in Figure 1, while the rock drilling machine is partially demounted in Figures 2 and 3. The drilling machine comprises a housing 1 with, among other features, the front part 1 a. A hammer piston 2 is arranged to carry out reciprocating motion within the housing 1. The hammer piston 2 acts through impacts against the upper part of a shank adapter 3. Drill string elements, not shown in the drawings, are connected to the shank adapter 3, as is also a drill bit, also this not shown in the drawings. The shank adapter 3 transfers impact force, together with the force of feeding and rotation to the rock. The term "forwards" will be used in the description below to denote a direction towards the rock, and "backwards" to denote a direction away from the rock.
A stop ring 4 is arranged to protect the shank adapter 3. If the drill bit impacts air instead of rock because, for example, the drill bit encounters a cavity in the rock or because it is necessary to hammer free the threads between the drill rods, the stop ring 4 partially prevents the shank adapter 3 from moving forwards too much in the axial direction, and this reduces the risk of damage.
A cartridge 5 is present in the front part 1 a, for example a sealing cartridge 5, mounted around the shank adapter 3. A cartridge 5 comprises, for example, one or several of the following: a cover plate 6, a guide 7 and a flush housing 8.
RING AND DRILLING RIG
TECHNICAL AREA
The present invention relates to a rock drilling machine, such as a top hammer, according to the preamble of claim 1.
THE PRIOR ART
Pressure waves are produced during down-the-hole drilling in the immediate vicinity of the drill bit of a down-the-hole drilling machine. It is namely the case during down-the-hole drilling that the impact mechanism is located at the bottom of the drill string in the drill hole, at the drill bit. The impact mechanism impacts directly on the drill bit.
During top hammer drilling, a piston moves in a reciprocating motion and impacts on a shank adapter of a top hammer. Furthermore, rotation is transferred to the shank adapter from a rotary motor. Impact energy and rotation are subsequently transferred from the shank adapter through one or several drill rods and a drill bit to the rock, such that a borehole is created. The rotary motor and the impact mechanism are located at surface level in a top hammer. If the drill bit impacts air instead of rock - known as a idle impact -because, for example, the drill bit encounters a cavity in the rock or because it is necessary to hammer free the threads between the drill rods, a stop ring prevents the shank adapter from moving forwards too much in the axial direction, and this reduces the risk of damage to the shank adapter. The stop ring is in this way subject to heavy loads.
The drilling cuttings that are broken loose during rock drilling must be continuously transported away from the borehole. This is carried out with the aid of a flushing medium, for example air or water, which in the front part of a top hammer is led in to the shank adapter through a flush connector and a flush housing. The flushing medium then passes through a passage in the shank adapter and the drill rods and finally passes out through the drill bit to the borehole, whereby the drilling cuttings are flushed out through the space between the drill rods and the edges of the borehole. An example of how this is achieved can be seen in W02009/148375, where the front part is provided with a sealing cartridge comprising a flush housing, a front guide and a cover plate.
This cartridge makes it possible to exchange flush seals without removing the complete front part.
One problem with the rock drilling machine revealed by W02009/148375 is that also the shank adapter and its stop ring have short lifetimes and need to be changed at regular intervals. Each change of a shank adapter requires the complete front part to be demounted from the rock drilling machine. This means that a number of side bolts must be undone and, most importantly, that the operator needs to lift a relatively heavy load, which the front part with its stop ring, shank adapter, etc. constitutes.
DESCRIPTION OF THE INVENTION
The purpose of the present invention is to achieve a rock drilling machine, such as a top hammer, that solves the problems described above. The rock drilling machine comprises a front part, a removable cartridge arranged in the front part, a shank adapter and a stop ring for the shank adapter. According to the invention, the diameter of the removable cartridge is at least equal to the diameter of the stop ring. This makes it possible during demounting of the removable cartridge to mount or demount the stop ring, without removing the front part from the rock drilling machine. In this way, mounting and demounting can take place more rapidly and more easily, and - not least - with less burden for the operator.
DESCRIPTION OF DRAWINGS
The invention will now be described in more detail with the aid of a preferred embodiment and with reference to the attached drawings, of which:
Figure 1 shows a side view of a front part of an assembled rock drilling machine where the stop ring is in the locked condition, Figure 2 shows a side view of a front part of a rock drilling machine according to Figure 1 where a sealing cartridge has been demounted where a stop ring is in its locked condition, Figure 3 shows a side view of a front part of a rock drilling machine according to Figure 1 where a sealing cartridge and a lock ring have been demounted and where a stop ring is in its open condition, Figures 4a-b show a front part of a rock drilling machine seen from behind, where a stop ring is in its open condition, and Figures 5a-b show a front part of a rock drilling machine seen from behind, where a stop ring is in its locked condition.
PREFERRED EMBODIMENT
Figures 1-3 show a front part 1 a of a rock drilling machine, such as a top hammer, according to the invention. The rock drilling machine is assembled in Figure 1, while the rock drilling machine is partially demounted in Figures 2 and 3. The drilling machine comprises a housing 1 with, among other features, the front part 1 a. A hammer piston 2 is arranged to carry out reciprocating motion within the housing 1. The hammer piston 2 acts through impacts against the upper part of a shank adapter 3. Drill string elements, not shown in the drawings, are connected to the shank adapter 3, as is also a drill bit, also this not shown in the drawings. The shank adapter 3 transfers impact force, together with the force of feeding and rotation to the rock. The term "forwards" will be used in the description below to denote a direction towards the rock, and "backwards" to denote a direction away from the rock.
A stop ring 4 is arranged to protect the shank adapter 3. If the drill bit impacts air instead of rock because, for example, the drill bit encounters a cavity in the rock or because it is necessary to hammer free the threads between the drill rods, the stop ring 4 partially prevents the shank adapter 3 from moving forwards too much in the axial direction, and this reduces the risk of damage.
A cartridge 5 is present in the front part 1 a, for example a sealing cartridge 5, mounted around the shank adapter 3. A cartridge 5 comprises, for example, one or several of the following: a cover plate 6, a guide 7 and a flush housing 8.
The exact contents of the cartridge are not relevant. It may be another removable cartridge than a sealing cartridge. The cartridge may also be composed from several parts that can be mounted and demounted individually.
What is important is that the cartridge is designed such that the stop ring 4 can be mounted and demounted from the front. This takes place in Figures 1-3 through the cartridge 5 having a diameter that is at least as large as the diameter of the stop ring 4.
The stop ring 4 may be subject to powerful forces from the shank adapter 3. It is, of course, possible to arrange such that the stop ring 4 is resting directly against the cartridge 5, but this is less appropriate, since it would then be possible to cause damage in the cartridge 5.
The stop ring 4 is in Figures 1-3 arranged instead such that it is mounted such that the stop ring 4 has at least a forwards contact area 9 that makes contact with a stop edge 10 on the front part 1 a. This ensures that the forces to which the stop ring 4 is exposed from the shank adapter 3 are transferred to the front part 1 a and not to the cartridge 5.
Figures 4a-b and 5a-b show an embodiment of how this may be implemented.
Figures 4a-b and Figure 3 show the open condition of the stop ring 4 during mounting and demounting of the stop ring 4. Figures 5a-b, Figure 1 and Figure 2 show a locked condition of the stop ring 4 during operation of the drilling machine. The front part 1 a is shown from the rear in Figures 4a and 5a. The stop ring 4 is designed as a slightly rounded polygon with three slightly rounded corners. It would be possible to use another number of corners than three, preferably two to five corners. As the number of corners increases, the contact area 9 at the front part 1 a decreases, and the forces to which the stop ring 4 is exposed will therefore be transferred to the front part 1 a in a poorer manner.
Also other shapes than polygons work well, but the polygon is a compact and durable shape that also is easy to manufacture, and thus it is for preferred for these reasons.
The front part 1 a comprises a recess 12 with a shape that allows the stop ring 4 to be mounted and demounted through the recess 12, Figure 4a. It is preferable that the recess 12 have the same shape as the stop ring 4. A cavity 13 for the stop ring 14 has been milled out at the rear end of the recess 12. The cavity is so arranged that the stop ring 4 can lie in a locked condition or in an open condition. When the stop ring 4 has been inserted into the cavity 13, the stop 5 ring 4 can be rotated - through 600 in the example that has three corners -from the open condition to the locked condition, such that the contact area 9 of the stop ring will be in contact with the stop edge 10 in the locked condition, Figure 5a.
The drilling machine vibrates during drilling and there is therefore a serious risk that it would be possible in this way for the stop ring 4 to rotate itself back to the open condition. Since this is not desirable, it is appropriate that the stop ring 4 be provided with a lock device, for example a lock ring 14.
The lock ring 14 has a similar shape to that of the stop ring 4 and the recess 12, and it is therefore possible to mount also the lock ring through the recess 12.
Furthermore, the lock ring 14 comprises lock cams 15 that pass between the stop ring 4 and the front part 1 a when the stop ring 4 is in its locked condition.
When the stop ring 4 has been rotated in place to the locked condition as described above, the lock ring 14 is mounted such that the lock cams 15 enter into the compartment between the stop ring 4 and the front part 1 a. This makes it impossible that the stop ring 4 be rotated back to its open condition.
Since the cavity 13 has been constructed such that the stop ring 4 can be rotated only between an open condition and a locked condition, the stop ring 4 cannot be rotated in any other direction.
The lock ring 14 has approximately the same length as the recess 12, and when the cartridge 5 is mounted in its place in the front part 1 a the lock ring 14 will therefore be held in place by the cartridge 5. It is, however, preferable that the tolerance be such that the length of the lock ring 14 is somewhat less than the length of the recess 12. This to ensure that the forces to which the stop ring 4 is exposed shall primarily be transferred to the front part 1 a through the contact area 9 and not be transferred to the lock ring 14 and onwards to the cartridge to too high a degree.
What is important is that the cartridge is designed such that the stop ring 4 can be mounted and demounted from the front. This takes place in Figures 1-3 through the cartridge 5 having a diameter that is at least as large as the diameter of the stop ring 4.
The stop ring 4 may be subject to powerful forces from the shank adapter 3. It is, of course, possible to arrange such that the stop ring 4 is resting directly against the cartridge 5, but this is less appropriate, since it would then be possible to cause damage in the cartridge 5.
The stop ring 4 is in Figures 1-3 arranged instead such that it is mounted such that the stop ring 4 has at least a forwards contact area 9 that makes contact with a stop edge 10 on the front part 1 a. This ensures that the forces to which the stop ring 4 is exposed from the shank adapter 3 are transferred to the front part 1 a and not to the cartridge 5.
Figures 4a-b and 5a-b show an embodiment of how this may be implemented.
Figures 4a-b and Figure 3 show the open condition of the stop ring 4 during mounting and demounting of the stop ring 4. Figures 5a-b, Figure 1 and Figure 2 show a locked condition of the stop ring 4 during operation of the drilling machine. The front part 1 a is shown from the rear in Figures 4a and 5a. The stop ring 4 is designed as a slightly rounded polygon with three slightly rounded corners. It would be possible to use another number of corners than three, preferably two to five corners. As the number of corners increases, the contact area 9 at the front part 1 a decreases, and the forces to which the stop ring 4 is exposed will therefore be transferred to the front part 1 a in a poorer manner.
Also other shapes than polygons work well, but the polygon is a compact and durable shape that also is easy to manufacture, and thus it is for preferred for these reasons.
The front part 1 a comprises a recess 12 with a shape that allows the stop ring 4 to be mounted and demounted through the recess 12, Figure 4a. It is preferable that the recess 12 have the same shape as the stop ring 4. A cavity 13 for the stop ring 14 has been milled out at the rear end of the recess 12. The cavity is so arranged that the stop ring 4 can lie in a locked condition or in an open condition. When the stop ring 4 has been inserted into the cavity 13, the stop 5 ring 4 can be rotated - through 600 in the example that has three corners -from the open condition to the locked condition, such that the contact area 9 of the stop ring will be in contact with the stop edge 10 in the locked condition, Figure 5a.
The drilling machine vibrates during drilling and there is therefore a serious risk that it would be possible in this way for the stop ring 4 to rotate itself back to the open condition. Since this is not desirable, it is appropriate that the stop ring 4 be provided with a lock device, for example a lock ring 14.
The lock ring 14 has a similar shape to that of the stop ring 4 and the recess 12, and it is therefore possible to mount also the lock ring through the recess 12.
Furthermore, the lock ring 14 comprises lock cams 15 that pass between the stop ring 4 and the front part 1 a when the stop ring 4 is in its locked condition.
When the stop ring 4 has been rotated in place to the locked condition as described above, the lock ring 14 is mounted such that the lock cams 15 enter into the compartment between the stop ring 4 and the front part 1 a. This makes it impossible that the stop ring 4 be rotated back to its open condition.
Since the cavity 13 has been constructed such that the stop ring 4 can be rotated only between an open condition and a locked condition, the stop ring 4 cannot be rotated in any other direction.
The lock ring 14 has approximately the same length as the recess 12, and when the cartridge 5 is mounted in its place in the front part 1 a the lock ring 14 will therefore be held in place by the cartridge 5. It is, however, preferable that the tolerance be such that the length of the lock ring 14 is somewhat less than the length of the recess 12. This to ensure that the forces to which the stop ring 4 is exposed shall primarily be transferred to the front part 1 a through the contact area 9 and not be transferred to the lock ring 14 and onwards to the cartridge to too high a degree.
The cartridge 5 is mounted at the front part 1a in Figures 1-3 by means of screws. If the cartridge 5 is designed so that it is instead pressed in and, for example, locked in place by a cover plate, it would be possible to integrate also the lock ring 14 in the cartridge 5, even if the mounting will be somewhat easier if this is kept separate.
At least one of the lock ring 14 and the stop ring 4 can be provided with demounting means 16, 17 in order to make demounting easier. The lock ring 14 is provided in Figures 1-5 with two screw holes 16. Two long screws can be deployed in the screw holes 16 during demounting, and it will thus be easy to pull the lock ring 14 free. The stop ring 4 is provided with similar screw holes 17, see Figure 3. It is possible again to rotate the stop ring 4 after the lock ring 14 has been demounted. The two long screws can then be deployed instead in the screw holes 17 of the stop ring, whereby the stop ring 4 can be rotated to its open condition and then withdrawn.
The stop ring 4 can in this way be mounted and demounted, without it being necessary to remove the complete front part 1 a, with all of its weight.
The invention is, naturally, not limited to the example described above: it can be modified within the scope of the attached patent claims. The present invention, for example, refers to all rock drilling machines that comprise piston means that impact upon a shank adapter, i.e. all rock drilling machines in which pressure waves are produced not in the immediate vicinity of the drill bit. The present invention refers, for example, to, but is not restricted to, a top hammer.
At least one of the lock ring 14 and the stop ring 4 can be provided with demounting means 16, 17 in order to make demounting easier. The lock ring 14 is provided in Figures 1-5 with two screw holes 16. Two long screws can be deployed in the screw holes 16 during demounting, and it will thus be easy to pull the lock ring 14 free. The stop ring 4 is provided with similar screw holes 17, see Figure 3. It is possible again to rotate the stop ring 4 after the lock ring 14 has been demounted. The two long screws can then be deployed instead in the screw holes 17 of the stop ring, whereby the stop ring 4 can be rotated to its open condition and then withdrawn.
The stop ring 4 can in this way be mounted and demounted, without it being necessary to remove the complete front part 1 a, with all of its weight.
The invention is, naturally, not limited to the example described above: it can be modified within the scope of the attached patent claims. The present invention, for example, refers to all rock drilling machines that comprise piston means that impact upon a shank adapter, i.e. all rock drilling machines in which pressure waves are produced not in the immediate vicinity of the drill bit. The present invention refers, for example, to, but is not restricted to, a top hammer.
Claims (11)
1) A rock drilling machine comprising a front part (1a), a removable cartridge (5) arranged in the front part (1a), a shank adapter (3) and a stop ring (4) for the shank adapter (3), characterised in that the diameter of the removable cartridge (5) is at least as great as the diameter of the stop ring (4), such that it is possible during demounting of the removable cartridge (5) to mount or demount the stop ring (4), without removing the front part (1a) from the rock drilling machine.
2) The rock drilling machine according to claim 1, characterised in that the front part (1a) further comprises a cavity (13) for the stop ring (4), which cavity (13) is arranged such that the stop ring (4) can lie in an open condition during mounting and demounting, and in a locked condition during operation of the drilling machine.
3) The rock drilling machine according to claim 2, characterised in that the front part (1a) comprises a stop edge (10), and in that the stop ring (4) in the locked condition comprises a forward contact area that makes contact with the stop edge (10).
4) The rock drilling machine according to any one of claims 1-3, characterised in that the stop ring (10) is shaped as a polygon with at least two corners, preferably two to five corners.
5) The rock drilling machine according to any one of claims 1-4, characterised in that the front part (1a) has a recess (12) for mounting and demounting of the stop ring (10), into which recess (12) the stop ring fits.
6) The rock drilling machine according to any one of claims 1-5, characterised in that the rock drilling machine further includes a lock ring (14) in order to retain the stop ring (4) in its locked condition.
7) The rock drilling machine according to any one of claims 1-5, characterised in that the rock drilling machine constitutes a top hammer.
8 8) A removable cartridge (5) for mounting in a front part (1a) in a top hammer, which top hammer comprises a stop ring (4), characterised in that the diameter of the removable cartridge (5) is at least as great as the diameter of the stop ring (4), such that it is possible during demounting of the removable cartridge (5) to mount or demount the stop ring (4), without removing the front part (1a) from the top hammer.
9) A stop ring (4) for mounting in a top hammer, which top hammer comprises a front part (1a) and a removable cartridge (5) arranged in the front part (1a) characterised in that the diameter of the stop ring (4) is at most as great as the diameter of the removable cartridge (5), such that it is possible during demounting of the removable cartridge (5) to mount or demount the stop ring (4), without removing the front part (1a) from the top hammer.
10)The stop ring (4) according to claim 9, characterised in that the stop ring (4) is shaped as a polygon with at least two corners, preferably three to five corners.
11)A drilling rig comprising a drilling machine according to any one of claims 7.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE1050531A SE534844C2 (en) | 2010-05-28 | 2010-05-28 | Rock drill, detachable cartridge, padding and drill rig including rock drill |
| SE1050531-1 | 2010-05-28 | ||
| PCT/SE2011/050571 WO2011149406A1 (en) | 2010-05-28 | 2011-05-06 | Rock drilling machine, removable cartridge, stop ring and drilling rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2799724A1 true CA2799724A1 (en) | 2011-12-01 |
Family
ID=45004186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2799724A Abandoned CA2799724A1 (en) | 2010-05-28 | 2011-05-06 | Rock drilling machine, removable cartridge, stop ring and drilling rig |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US20130087356A1 (en) |
| EP (1) | EP2576147A1 (en) |
| JP (1) | JP2013527043A (en) |
| CN (1) | CN102905855A (en) |
| AU (1) | AU2011258934B2 (en) |
| CA (1) | CA2799724A1 (en) |
| SE (1) | SE534844C2 (en) |
| WO (1) | WO2011149406A1 (en) |
| ZA (1) | ZA201208573B (en) |
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|---|---|---|---|---|
| US3893521A (en) * | 1974-01-30 | 1975-07-08 | Joy Mfg Co | Rock drill |
| SE440873B (en) * | 1981-02-11 | 1985-08-26 | Atlas Copco Ab | HYDRAULIC SUSPENSION WITH REFLEX DUMPERS INCLUDING LOCK SPLACES IN SERIES WITH CUTTING NOZZLE |
| JPS5859886U (en) * | 1981-10-19 | 1983-04-22 | 株式会社小松製作所 | drifter device |
| AT380534B (en) * | 1983-01-07 | 1986-06-10 | Ver Edelstahlwerke Ag | TURNING, TURNING, OR STRIKE |
| DE4317037A1 (en) * | 1993-05-21 | 1994-11-24 | Hausherr & Soehne Rudolf | Drilling apparatus |
| JP3483015B2 (en) * | 1995-10-16 | 2004-01-06 | 古河機械金属株式会社 | Hydraulic shock absorber shock absorber |
| AUPQ302599A0 (en) * | 1999-09-22 | 1999-10-21 | Azuko Pty Ltd | Drilling apparatus |
| JP4463381B2 (en) * | 2000-06-01 | 2010-05-19 | 古河機械金属株式会社 | Damper pressure control device for hydraulic drill |
| FI116968B (en) * | 2004-07-02 | 2006-04-28 | Sandvik Tamrock Oy | Procedure for control of impactor, program product and impactor |
| FI123572B (en) * | 2005-10-07 | 2013-07-15 | Sandvik Mining & Constr Oy | Method and rock drilling device for drilling holes in rock |
| EP2313602A4 (en) * | 2008-06-03 | 2015-11-11 | Atlas Copco Rock Drills Ab | Arrangement and method comprising a flushing head for a rock drilling machine, and rock drilling machine comprising the arrangement |
| FI121220B (en) * | 2008-11-20 | 2010-08-31 | Sandvik Mining & Constr Oy | Rock drill and axial bearing module |
| FI121221B (en) * | 2008-11-20 | 2010-08-31 | Sandvik Mining & Constr Oy | Rock drill and axial bearing module |
| JP5294826B2 (en) * | 2008-12-19 | 2013-09-18 | 株式会社マキタ | Impact tool |
-
2010
- 2010-05-28 SE SE1050531A patent/SE534844C2/en unknown
-
2011
- 2011-05-06 AU AU2011258934A patent/AU2011258934B2/en not_active Expired - Fee Related
- 2011-05-06 US US13/261,507 patent/US20130087356A1/en not_active Abandoned
- 2011-05-06 JP JP2013513133A patent/JP2013527043A/en not_active Withdrawn
- 2011-05-06 CN CN2011800259519A patent/CN102905855A/en active Pending
- 2011-05-06 EP EP11786983.4A patent/EP2576147A1/en not_active Withdrawn
- 2011-05-06 WO PCT/SE2011/050571 patent/WO2011149406A1/en active Application Filing
- 2011-05-06 CA CA2799724A patent/CA2799724A1/en not_active Abandoned
-
2012
- 2012-11-14 ZA ZA2012/08573A patent/ZA201208573B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| AU2011258934B2 (en) | 2014-09-18 |
| AU2011258934A1 (en) | 2012-12-06 |
| WO2011149406A1 (en) | 2011-12-01 |
| SE534844C2 (en) | 2012-01-17 |
| EP2576147A1 (en) | 2013-04-10 |
| JP2013527043A (en) | 2013-06-27 |
| US20130087356A1 (en) | 2013-04-11 |
| ZA201208573B (en) | 2014-01-29 |
| CN102905855A (en) | 2013-01-30 |
| SE1050531A1 (en) | 2011-11-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |
Effective date: 20160506 |