EP3548691B1 - Method, apparatus and holder for mounting of a drill bit - Google Patents
Method, apparatus and holder for mounting of a drill bit Download PDFInfo
- Publication number
- EP3548691B1 EP3548691B1 EP17875615.1A EP17875615A EP3548691B1 EP 3548691 B1 EP3548691 B1 EP 3548691B1 EP 17875615 A EP17875615 A EP 17875615A EP 3548691 B1 EP3548691 B1 EP 3548691B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drill
- drill bit
- holder
- arm
- drill rod
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims description 25
- 238000005553 drilling Methods 0.000 claims description 64
- 239000011435 rock Substances 0.000 claims description 25
- 239000000463 material Substances 0.000 claims description 8
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/02—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
- E21B7/025—Rock drills, i.e. jumbo drills
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B12/00—Accessories for drilling tools
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/14—Racks, ramps, troughs or bins, for holding the lengths of rod singly or connected; Handling between storage place and borehole
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/18—Connecting or disconnecting drill bit and drilling pipe
Definitions
- Present invention relates to equipment which may be used in, for example, mining industry. More specifically, the invention relates to a method and to an apparatus for mounting a drill bit adapted for rock drilling, for example in conjunction with tunnelling, and to a holder that can be used for the mounting.
- An object of the present invention is thus to improve operational reliability at rock drilling.
- a method for mounting a drill bit on a drill rod at a rock drilling machine comprising a base unit and a first arm freely movably attached to the base unit.
- the first arm is mounted to the base unit, for example via the one end of the first arm so that an opposite end of the first arm can move freely relative to the base unit.
- the rock drilling machine comprises a first drilling unit freely movably attached to said first arm.
- the first drilling unit is mounted at the first arm so that the first drilling unit can move freely relative to the first arm.
- the first drilling unit comprises the drill rod, a frame and a feeding device for moving of said drill rod axially along an axis of rotation of the drill rod relative to said frame.
- the drill rod can be moved, i.e. the position of the drill rod can be changed along the axis of rotation of the drill rod relative to the frame by means of the feeding device.
- the method comprises the following steps: Aligning the first drilling unit by using the first arm towards the drill bit located in a fixedly arranged holder configured to hold at least two drill bits, so that the axis of rotation of the drill bit substantially coincides with an axis of rotation of the drill bit, wherein a free movement of the first drilling unit relative to the holder is permitted.
- the holder is thus fixedly arranged, which means that the holder is fixedly mounted to a support and can thus be held in substantially the same position relative to the support during assembling of the holder.
- This, the design and the attachment of the holder is simplified. Since free movement of the first drilling unit relative to the holder is allowed, the position of the first drilling unit relative to the holder can be changed freely, i.e. the first drilling unit can be moved freely relative to the holder and by this it can be directed towards the drill bit in a simple and efficient manner and with high precision.
- the method comprises the step of directing the first drilling unit by means of the first arm towards the drill bit so that the axis of rotation of the drill rod substantially coincides with an axis of rotation of the drill bit, the position of the first drilling unit can be changed by means of the first arm relative to the holder so that the first drilling unit and thus the drill rod are directed towards the drill bit.
- the drill rod can be directed towards the drill bit with high precision and in a simple and efficient manner by means of the first arm.
- the need of a complicated equipment is eliminated, which according to the prior art methods is required to align a drill rod relative to a drill bit, this because the first arm is used to align the first drill assembly and thus the drill rod to the drill bit positioned in the fixedly arranged holder.
- the method comprises:
- a method of rock drilling which enables the installation of a drill bit in a simple and efficient manner without the need of several moving parts.
- reliability at rock drilling can be improved as fewer moving parts imply a lower risk of stoppages.
- the method may also comprise selecting the drill bit intended to be mounted on the drill rod.
- the rock drill machine comprises a second arm freely movably attached to the base unit, the holder being mounted at the second arm.
- the second arm is fixedly mounted to the base unit, for example by the one end of the other arm, so that an opposite end of the other arm can move freely relative to the base unit. Because the holder can be mounted on the other arm, which is freely movable attached to the base unit, the position of the holder relative to the base unit can be changed by means of the second arm.
- the position of the holder relative to the first arm can also be changed by means of the second arm which facilitates positioning of the first drilling unit and by this of the drill rod relative to the holder because both the first arm and the second arm can be used to align the drill rod towards the drill bit mounted in the holder.
- the drill rod may comprise external threads and the drill bit may comprise corresponding internal threads, wherein the step of mounting the drill bit on the drill rod may comprise to screw tight the drill bit on the drill rod.
- the drill bit can be mounted on the drill bit in a simple and efficient manner.
- the method may, for example, also comprise bringing back the drill bit into the holder by the first arm for disassembling the drill bit from the drill rod.
- a rock drilling device intended to be used for mounting of a drill bit on a drill rod
- a rock drilling device intended to be used for mounting of a drill bit on a drill rod
- a rock drilling device intended to be used for mounting of a drill bit on a drill rod
- a rock drilling device comprising a first arm freely movably attached to a base unit, a first drill unit freely movably attached to the first arm, wherein the first drill unit comprises the drill rod, a frame and a feeding device for axial displacement of the drill rod along the axis of rotation of the drill rod relative to the frame.
- the device comprises a fixedly arranged holder configured to hold at least two drill bits, wherein a free movement of the first drilling unit in relation to the holder is permitted and a control unit arranged to: align the first drill unit, by the first arm against the drill bit located in the fixedly arranged holder so that the axis of rotation of the drill rod substantially coincides with a rotation axis of the drill bit, displace the drill rod axially forward towards the drill bit to a first position of the drill rod permitting mounting of the drill bit, attach the drill bit to the drill rod and displace the drill rod axially backward to a second position in which the drill bit has been removed from the holder.
- the holder is fixedly arranged, which means that the holder is fixedly mounted to a
- the holder is fixedly mounted, which means that the holder is fixed to a support and can thus be held in substantially the same position relative to the support during assembling of the holder. Because free movement of the first drilling unit relative to the holder is allowed, the position of the first drilling unit relative to the holder can be changed freely, i.e. the first drilling unit can be moved freely relative to the holder.
- the device comprises the control unit designed to align the first drilling unit by means of the first arm against the drill bit so that the axis of rotation of the drill rod substantially coincides with an axis of rotation of the drill bit
- the position of the first drilling unit can be changed by means of the first arm relative to the holder so that the first drilling unit and thus the drill rod are directed towards the drill bit by means of the first arm.
- the drill rod can be directed towards the drill bit in a simple and efficient manner and with high precision by the first arm. This eliminates the need for complicated equipment which, according to known methods, is needed to align a drill rod relative to a drill bit.
- the device may for example comprise a second arm freely movably attached to the base unit, wherein the holder is mounted at the second arm.
- the other arm is attached to the base unit, for example by the one end of the other arm so that an opposite end of the other arm can move freely relative to the base unit.
- the holder can be mounted on the other arm, which is freely movable attached to the base unit, the position of the holder relative to the base unit can be changed by means of the second arm.
- the position of the holder relative to the first arm can also be changed by means of the second arm which facilitates positioning of the first drilling unit and by this of the drill rod relative to the holder because both the first arm and the second arm can be used to align the drill rod towards the drill bit mounted in the holder.
- the device comprises a second drilling unit freely movably arranged at the second arm.
- the second arm may be used for drilling holes.
- a holder adapted for use for rock drilling comprising a housing and an inner part adapted to receive at least two drill bits, wherein the inner part is adapted to hold the at least two drill bits at transport and to permit mounting of each drill bit on a drill rod.
- the inner part of the holder is adapted to prevent the at least two drill bits from leaving the holder during transport while allowing at least one of the at least two drill bits to be removed from the holder for mounting on the drill rod.
- a holder which can be used for rock drilling and the like, by means of which the process of mounting a drill bit is simplified.
- the inner part is arranged to counteract a rotational movement and to permit an axial displacement of the drill bits in relation to the inner part upon mounting of these on the drill rod.
- the drill bit rotates within the inner part at mounting of the drill bit while allowing the drill bit to be axially displaced out of the holder along the drill bit axis of rotation during assembling. In this way, facilitates mounting of the drill bit on a drill rod.
- the inner part may for example comprise a flexible material such as rubber.
- a flexible material such as rubber.
- the shape of the inner part can be changed thanks to the flexible material.
- the inner part may for example comprise at least two openings where each opening is arranged to receive a corresponding drill bit, each opening having a diameter less than the largest diameter of the corresponding drill bit.
- Fig. 1 illustrates a device 21 for rock drilling comprising a first arm 9 which is freely movably attached to a base unit 7 and a first drilling unit 11 which is freely movably attached to the first arm 9.
- free movable attachment is meant a coupling that allows mobility in several different directions and/or around several axes of rotation.
- the first arm 9 is attached to the base unit 7 by means of a first joint 2.
- the first joint 2 is arranged to enable rotation of the first arm 9 about the axes of rotation A1, A2 and A3.
- the axis A2 of Fig. 1 is illustrated to extend perpendicular to the plane of the drawing.
- the rotation of the first arm 9 about the axes of rotation A1, A2 and A3 can be controlled by means of hydraulic or pneumatic cylinders for rotation about a respective axis of rotation. For simplicity, only one cylinder 4 is shown in Fig. 1 .
- a drill unit 11 is freely movably attached at the first arm 9. This can be done by means of a second joint 6.
- the second joint 6 is arranged to enable rotation of the drilling unit 11 about axes of rotation A4, A5 and A6.
- the axis A5 in Fig. 1 is also illustrated to extend perpendicular to the plane of the drawing.
- the rotation of the drilling unit 11 around the axes of rotation A4, A5 and A6 can be controlled by means of hydraulic or pneumatic cylinders for rotation about a respective axis of rotation. For simplicity only one such cylinder 8 is shown in Fig. 1 .
- the device 21 is mounted on a mobile rock drilling machine 5 comprising wheels.
- the device 21 can be mounted, for example, at a rock drilling machine comprising a caterpillar band.
- the device 21 may in some cases be mounted at a platform or directly at the bedrock.
- the first drilling unit 11 comprises a drill rod 3, a frame 13 and a feeding device 15 for axial displacement of the drill rod 3 along the axis of rotation Ab of the drill rod relative to the frame 13.
- the axial displacement of the drill rod 3 can be carried out, for example, by means of a chain 10 or wire connected to a sled 12 the drill rod 3 is mounted on and to a cylinder (not shown) for driving the chain 10.
- a feeding device is common in the art and is therefore not described in detail. In this way, the drill rod 3 can be moved axially by means of the feeding device 15.
- Fig. 1 it is also shown that a drill bit 1 is mounted on the drill rod 3.
- Figure 2 shows the device 21 for rock drilling illustrated in Figure 1 .
- the device 21 comprises a first arm 9 freely movably attached to the base unit 7, a first drill unit 11 freely movably attached to the first arm 9, a second arm 19 freely movably attached to the base unit 7 and a second drill unit 23 freely movable arranged at the second arm 19.
- the holder 17 is mounted at the second arm 19 and more specifically at the second drill unit 21.
- the holder 17 can be mounted directly at the second arm 19 or at the first arm 9 or at a base such as a stand or the like firmly mounted in the bedrock.
- the base When the holder is mounted at the above base, the base must be fixed to the bedrock so that it can withstand the forces it is exposed to during operation and during installation of a drill bit.
- the first arm 9 comprises two parts pivotally articulated to each other by means of a joint 14.
- the second arm 19 in Fig. 2 also comprises two parts arranged in a similar way as the first arm 9.
- the first arm 9 and the second arm 19 may comprise only one part or more parts than two and the device 21 is generally not limited in this regard.
- the first drilling unit 11 is directed, by means of the first arm 9, towards a drill bit 1 which is located in the fixedly arranged holder 17 so that the axis of rotation Ab of the drill rod 3 substantially coincides with an axis of rotation Ak of the drill bit 1.
- the device 21 is controlled by means of a control device 25.
- the control means 25 may for example include electronic components connected to a hydraulic or pneumatic system (not shown) for controlling the device. The control can be done manually or can be programmed and done fully automatically.
- a position for mounting of the drill bit 1 on the drill rod 3 can be achieved by means of movements of the first arm 9, the first drilling unit 11, the second arm 19 and the second drilling unit 23.
- the second drill unit 23 can be mounted at the second arm 19 in a similar manner as the first drill unit 11 is mounted at the first arm 9, i.e.
- the holder 17 can be mounted by means of a control device (not shown) that allows movement of the holder 17 relative to the second drilling unit 23 or relative to a base at which the holder is mounted.
- the second arm 19 and the second drilling unit 23 may for example be constructed similarly to the first arm 9 and the first drilling unit 11, respectively.
- Fig. 3 illustrates the holder 17 in Fig. 2 in more detail.
- the holder 17 comprises a housing 25 and an inner part 27 adapted to receive at least two drill bits 1. This is possible because the inner part 27 comprises at least two openings 29, 31 where each opening 29, 31 is arranged to receive a corresponding drill bit 1.
- the housing 25 also comprises at least two openings 33, 35 adapted to cooperate with the at least two openings 29, 31 of the inner portion 27 to enable receiving of respective drill bit.
- the holder in Fig. 3 comprises an attachment portion 37 for attachment, i.e. mounting, of the holder at a base.
- the housing 25 is, for example, of metal or of a plastic material adapted for mining environment.
- the inner part 27 comprises a flexible material such as rubber or a suitable plastic material.
- Each aperture 29, 31 has a diameter d1 which is smaller than a largest diameter d2 of a corresponding drill bit 1 to be placed in the corresponding opening.
- friction forces are provided between an inner surface of the respective aperture and an outer surface of the respective drill bit. These frictional forces make it easier to hold drill bits in the holder, preventing the drill bits from slipping out or shaking out of the holder, for example during transportation or other handling.
- the difference between the second diameter d2 and the first diameter d1 may, for example, be between 5-10 mm. This means that upon placing a drill bit in the holder 17 and more specifically in the inner part 27 of the holder 17, the drill bit is pressed into an opening of the inner part 27 during deformation of the flexible material of the inner part. Since the inner part comprises a flexible material, the inner part 27 and more specifically the opening where the drill bit is positioned to the drill bit dimension is adapted. In this manner, the above-described frictional forces are created between the inner portion 27 and the drill bits located in the inner portion 27. The magnitude of these frictional forces depends on the difference between the second diameter d2 and the first diameter d1 so that the greater the difference, the greater the frictional forces.
- the inner part comprises at least two openings 29, 31 where each opening 29, 31 is arranged to receive a corresponding drill bit 1.
- the openings 29, 31 may be formed with the same diameter or with different diameters. This also applies to drill bits intended to be placed in the holder 17. Thus, the drill bits may have the same outer diameter or different outer diameters. Thus, drill bits of different dimensions and / or different characteristics can be placed in the holder 17.
- the inner part 27 may be placed in the housing 25 by inserting the inner part 27 into the housing 25 from above, viewed in the position of the housing 25 illustrated in Fig. 3 .
- the housing 25 may comprise an openable cover (not shown) through which the inner part 27 can be placed into the housing 25 of the holder 17.
- the inner portion 27 may be configured so that the drill bits are held by magnetic forces, such as electromagnetic forces.
- the inner part 27 may for example comprise grooves on the inside of said openings 29, 31 in order to provide a coupling according to the bayonet coupling principle when placing a drill bit in a respective opening.
- Fig. 4 illustrates a side view of the holder 17 shown in Fig. 2 and Fig. 3 where a plurality of crowns have been placed in the holder 17.
- the drill rod 3 has been positioned so that the axis of rotation of the drill rod Ab substantially coincides with the axis of rotation of a drill bit 1 Ak.
- the drill rod 3 is displaced axially in a direction w towards the holder 17.
- the holder 17 may for example include a stop plate 39 mounted to prevent the drill bit movement out from the holder in the direction w when mounting the drill bit 1 on the drill rod or at placing the drill bit in the holder 17.
- the drill rod 3 may comprise, for example, outer threads with an outer diameter dy.
- Corresponding drill bit may comprise corresponding internal threads with an inner diameter di to enable mounting of the drill bit on drill rod 3.
- Fig. 5 shows an exemplary method 100 for rock drilling.
- the method 100 can be performed, for example, by a control unit (not shown).
- the method 100 comprises:
- the method 100 may comprise selecting 109 the drill bit intended to be mounted on the drill rod.
- the method may comprise bringing back 111 the drill bit into said holder by the first arm for disassembling the drill bit from the drill rod.
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)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Description
- Present invention relates to equipment which may be used in, for example, mining industry. More specifically, the invention relates to a method and to an apparatus for mounting a drill bit adapted for rock drilling, for example in conjunction with tunnelling, and to a holder that can be used for the mounting.
- In conjunction with tunneling or work in a mine, you need to drill holes for an explosive to be placed in the holes. Mountain drilling is usually carried out with specially designed machines adapted for mining and tunnels. The number of boreholes in a round of shots may vary depending on the bedrock. At tunneling in a harder rock, up to 70 well holes may need to be drilled for a blast. Hard bedrock causes drill bits in the drill to wear quickly and need to be replaced for regrinding. A drill bit is usually only enough to drill 1 to 2 holes before it needs to be replaced.
- Historically, the replacement of a worn drill bit was performed manually by an operator.
- In case of manual change, the drilling machine must be switched off which interferes with the operating process. Manual switching can also cause damage to the operator who performs the change.
- Recently, a number of solutions have been developed to automate the change of drill bit. These solutions usually use a magazine and a complicated equipment to handle the magazine's movement when changing. A disadvantage of known solutions is that they often include many moving parts, which results in increased risk of downtime due to increased risk of breakdown of the parts in the very demanding and often dusty environment they are used in. A closest prior art document is considered to be
US3976149 A . - An object of the present invention is thus to improve operational reliability at rock drilling.
- This object is achieved according to one aspect , by a method for mounting a drill bit on a drill rod at a rock drilling machine comprising a base unit and a first arm freely movably attached to the base unit. In other words, the first arm is mounted to the base unit, for example via the one end of the first arm so that an opposite end of the first arm can move freely relative to the base unit.
- The rock drilling machine comprises a first drilling unit freely movably attached to said first arm. Thus, the first drilling unit is mounted at the first arm so that the first drilling unit can move freely relative to the first arm.
- The first drilling unit comprises the drill rod, a frame and a feeding device for moving of said drill rod axially along an axis of rotation of the drill rod relative to said frame. Thus, the drill rod can be moved, i.e. the position of the drill rod can be changed along the axis of rotation of the drill rod relative to the frame by means of the feeding device.
- The method comprises the following steps:
Aligning the first drilling unit by using the first arm towards the drill bit located in a fixedly arranged holder configured to hold at least two drill bits, so that the axis of rotation of the drill bit substantially coincides with an axis of rotation of the drill bit, wherein a free movement of the first drilling unit relative to the holder is permitted. - The holder is thus fixedly arranged, which means that the holder is fixedly mounted to a support and can thus be held in substantially the same position relative to the support during assembling of the holder. This, the design and the attachment of the holder is simplified. Since free movement of the first drilling unit relative to the holder is allowed, the position of the first drilling unit relative to the holder can be changed freely, i.e. the first drilling unit can be moved freely relative to the holder and by this it can be directed towards the drill bit in a simple and efficient manner and with high precision.
- Further, because the method comprises the step of directing the first drilling unit by means of the first arm towards the drill bit so that the axis of rotation of the drill rod substantially coincides with an axis of rotation of the drill bit, the position of the first drilling unit can be changed by means of the first arm relative to the holder so that the first drilling unit and thus the drill rod are directed towards the drill bit. In this way the drill rod can be directed towards the drill bit with high precision and in a simple and efficient manner by means of the first arm. Thereby the need of a complicated equipment is eliminated, which according to the prior art methods is required to align a drill rod relative to a drill bit, this because the first arm is used to align the first drill assembly and thus the drill rod to the drill bit positioned in the fixedly arranged holder.
- Further, the method comprises:
- displacing the drill rod axially forward towards the drill bit to a first position of the drill rod permitting mounting of the drill bit,
- mounting said drill bit on said drill rod and
- displacing said drill rod axially backward to a second position in which the drill bit has been removed from said holder. This means that the drill bit leaves the fixedly arranged holder by following the movement of the drill rod backwards to the other position. Thus the drill bit can be mounted on the drill bit with a few simple steps.
- Accordingly, a method of rock drilling is provided which enables the installation of a drill bit in a simple and efficient manner without the need of several moving parts. In this way, reliability at rock drilling can be improved as fewer moving parts imply a lower risk of stoppages. Thus, the above-mentioned purpose is achieved.
- For example, the method may also comprise selecting the drill bit intended to be mounted on the drill rod. This means that the drill bit can be selected from several drill bits in the holder. This allows you to decide in advance which drill bit in the holder is to be mounted.
- According to some embodiments, the rock drill machine comprises a second arm freely movably attached to the base unit, the holder being mounted at the second arm. In other words, the second arm is fixedly mounted to the base unit, for example by the one end of the other arm, so that an opposite end of the other arm can move freely relative to the base unit. Because the holder can be mounted on the other arm, which is freely movable attached to the base unit, the position of the holder relative to the base unit can be changed by means of the second arm. Thus, the position of the holder relative to the first arm can also be changed by means of the second arm which facilitates positioning of the first drilling unit and by this of the drill rod relative to the holder because both the first arm and the second arm can be used to align the drill rod towards the drill bit mounted in the holder.
- For example, the drill rod may comprise external threads and the drill bit may comprise corresponding internal threads, wherein the step of mounting the drill bit on the drill rod may comprise to screw tight the drill bit on the drill rod. Thus, the drill bit can be mounted on the drill bit in a simple and efficient manner.
- The method may, for example, also comprise bringing back the drill bit into the holder by the first arm for disassembling the drill bit from the drill rod.
- The above-described object can also be achieved by a rock drilling device intended to be used for mounting of a drill bit on a drill rod comprising a first arm freely movably attached to a base unit, a first drill unit freely movably attached to the first arm, wherein the first drill unit comprises the drill rod, a frame and a feeding device for axial displacement of the drill rod along the axis of rotation of the drill rod relative to the frame. Further, the device comprises a fixedly arranged holder configured to hold at least two drill bits, wherein a free movement of the first drilling unit in relation to the holder is permitted and a control unit arranged to: align the first drill unit, by the first arm against the drill bit located in the fixedly arranged holder so that the axis of rotation of the drill rod substantially coincides with a rotation axis of the drill bit, displace the drill rod axially forward towards the drill bit to a first position of the drill rod permitting mounting of the drill bit, attach the drill bit to the drill rod and displace the drill rod axially backward to a second position in which the drill bit has been removed from the holder.
- The holder is fixedly arranged, which means that the holder is fixedly mounted to a
The holder is fixedly mounted, which means that the holder is fixed to a support and can thus be held in substantially the same position relative to the support during assembling of the holder. Because free movement of the first drilling unit relative to the holder is allowed, the position of the first drilling unit relative to the holder can be changed freely, i.e. the first drilling unit can be moved freely relative to the holder. - Further, because the device comprises the control unit designed to align the first drilling unit by means of the first arm against the drill bit so that the axis of rotation of the drill rod substantially coincides with an axis of rotation of the drill bit, the position of the first drilling unit can be changed by means of the first arm relative to the holder so that the first drilling unit and thus the drill rod are directed towards the drill bit by means of the first arm. In this way the drill rod can be directed towards the drill bit in a simple and efficient manner and with high precision by the first arm. This eliminates the need for complicated equipment which, according to known methods, is needed to align a drill rod relative to a drill bit.
- Accordingly, a rock drilling device is provided by which above-mentioned object is achieved.
- The device may for example comprise a second arm freely movably attached to the base unit, wherein the holder is mounted at the second arm. In other words, the other arm is attached to the base unit, for example by the one end of the other arm so that an opposite end of the other arm can move freely relative to the base unit. Because the holder can be mounted on the other arm, which is freely movable attached to the base unit, the position of the holder relative to the base unit can be changed by means of the second arm. Thus, the position of the holder relative to the first arm can also be changed by means of the second arm which facilitates positioning of the first drilling unit and by this of the drill rod relative to the holder because both the first arm and the second arm can be used to align the drill rod towards the drill bit mounted in the holder.
- According to some embodiments, the device comprises a second drilling unit freely movably arranged at the second arm. Thereby, the second arm may be used for drilling holes.
- The above-described object can also be achieved according to an additional aspect of the present invention by a holder adapted for use for rock drilling, comprising a housing and an inner part adapted to receive at least two drill bits, wherein the inner part is adapted to hold the at least two drill bits at transport and to permit mounting of each drill bit on a drill rod. In other words, the inner part of the holder is adapted to prevent the at least two drill bits from leaving the holder during transport while allowing at least one of the at least two drill bits to be removed from the holder for mounting on the drill rod. Thus, a holder is achieved adapted for rock drilling which facilitates the transport of drill bits and which enables mounting of some of the drill bits on a drill rod.
- Accordingly, a holder is provided which can be used for rock drilling and the like, by means of which the process of mounting a drill bit is simplified.
- According to some embodiments, for example the inner part is arranged to counteract a rotational movement and to permit an axial displacement of the drill bits in relation to the inner part upon mounting of these on the drill rod. By this it is prevented that the drill bit rotates within the inner part at mounting of the drill bit while allowing the drill bit to be axially displaced out of the holder along the drill bit axis of rotation during assembling. In this way, facilitates mounting of the drill bit on a drill rod.
- The inner part may for example comprise a flexible material such as rubber. Thus, the shape of the inner part can be changed thanks to the flexible material.
- The inner part may for example comprise at least two openings where each opening is arranged to receive a corresponding drill bit, each opening having a diameter less than the largest diameter of the corresponding drill bit. As a consequence, friction forces between the inner part and the drill bit are achieved when the drill bit is placed in the holder, which friction forces facilitate keeping the drill bit in the holder, for example during transport, while allowing axial movement of the drill bit from the holder.
- The further aspects of the subject matter, including their particular features and advantages, will be readily understood from the following detailed description of one or several embodiments provided with reference to the accompanying drawings.
-
Fig. 1 is a side view of a device for rock drilling mounted at a mobile rock drilling machine, -
Figure 2 is a perspective view of the device inFigure 1 comprising two arms and a holder, -
Fig. 3 is a perspective view of the holder inFig. 2 , -
Fig. 4 is a side view of the holder according toFig. 2 and3 and -
Fig. 5 is a flowchart showing a method at rock drilling. - The present invention will now be described in more detail with reference to the accompanying drawings, in which exemplary embodiments are shown.
- Corresponding features and details have the same reference in the description below.
-
Fig. 1 illustrates adevice 21 for rock drilling comprising afirst arm 9 which is freely movably attached to abase unit 7 and afirst drilling unit 11 which is freely movably attached to thefirst arm 9. With free movable attachment is meant a coupling that allows mobility in several different directions and/or around several axes of rotation. According to embodiments illustrated inFigure 1 , thefirst arm 9 is attached to thebase unit 7 by means of a first joint 2. The first joint 2 is arranged to enable rotation of thefirst arm 9 about the axes of rotation A1, A2 and A3. The axis A2 ofFig. 1 is illustrated to extend perpendicular to the plane of the drawing. The rotation of thefirst arm 9 about the axes of rotation A1, A2 and A3 can be controlled by means of hydraulic or pneumatic cylinders for rotation about a respective axis of rotation. For simplicity, only onecylinder 4 is shown inFig. 1 . - As illustrated in
Fig. 1 , adrill unit 11 is freely movably attached at thefirst arm 9. This can be done by means of asecond joint 6. Thesecond joint 6 is arranged to enable rotation of thedrilling unit 11 about axes of rotation A4, A5 and A6. The axis A5 inFig. 1 is also illustrated to extend perpendicular to the plane of the drawing. The rotation of thedrilling unit 11 around the axes of rotation A4, A5 and A6 can be controlled by means of hydraulic or pneumatic cylinders for rotation about a respective axis of rotation. For simplicity only onesuch cylinder 8 is shown inFig. 1 . - According to the embodiment shown in
Fig. 1 , thedevice 21 is mounted on a mobilerock drilling machine 5 comprising wheels. Thedevice 21 can be mounted, for example, at a rock drilling machine comprising a caterpillar band. Thedevice 21 may in some cases be mounted at a platform or directly at the bedrock. - The
first drilling unit 11 comprises adrill rod 3, aframe 13 and afeeding device 15 for axial displacement of thedrill rod 3 along the axis of rotation Ab of the drill rod relative to theframe 13. The axial displacement of thedrill rod 3 can be carried out, for example, by means of achain 10 or wire connected to asled 12 thedrill rod 3 is mounted on and to a cylinder (not shown) for driving thechain 10. Such a feeding device is common in the art and is therefore not described in detail. In this way, thedrill rod 3 can be moved axially by means of thefeeding device 15. InFig. 1 it is also shown that adrill bit 1 is mounted on thedrill rod 3. -
Figure 2 shows thedevice 21 for rock drilling illustrated inFigure 1 . According to some embodiments inFigure 2 , thedevice 21 comprises afirst arm 9 freely movably attached to thebase unit 7, afirst drill unit 11 freely movably attached to thefirst arm 9, asecond arm 19 freely movably attached to thebase unit 7 and asecond drill unit 23 freely movable arranged at thesecond arm 19. As illustrated inFig. 2 , theholder 17 is mounted at thesecond arm 19 and more specifically at thesecond drill unit 21. As an alternative theholder 17 can be mounted directly at thesecond arm 19 or at thefirst arm 9 or at a base such as a stand or the like firmly mounted in the bedrock. When the holder is mounted at the above base, the base must be fixed to the bedrock so that it can withstand the forces it is exposed to during operation and during installation of a drill bit. - According to some embodiments illustrated in
Fig. 2 and also inFig. 1 , thefirst arm 9 comprises two parts pivotally articulated to each other by means of a joint 14. Thesecond arm 19 inFig. 2 also comprises two parts arranged in a similar way as thefirst arm 9. Alternatively, thefirst arm 9 and thesecond arm 19 may comprise only one part or more parts than two and thedevice 21 is generally not limited in this regard. - As illustrated in
Fig. 2 , thefirst drilling unit 11 is directed, by means of thefirst arm 9, towards adrill bit 1 which is located in the fixedly arrangedholder 17 so that the axis of rotation Ab of thedrill rod 3 substantially coincides with an axis of rotation Ak of thedrill bit 1. Thereby, thedrill rod 3 has been positioned relative to thedrill bit 1 in order to mount thedrill bit 1 on thedrill rod 3. Thedevice 21 is controlled by means of acontrol device 25. The control means 25 may for example include electronic components connected to a hydraulic or pneumatic system (not shown) for controlling the device. The control can be done manually or can be programmed and done fully automatically. - Because the
holder 17 according to some embodiments illustrated inFig. 2 is mounted at thesecond drilling unit 23, positioning of thedrill rod 3 relative to theholder 17 is facilitated because a position when the axis of rotation of the drill rod Ab substantially coincides with the axis of rotation Ak of thedrill bit 1, thus, a position for mounting of thedrill bit 1 on thedrill rod 3 can be achieved by means of movements of thefirst arm 9, thefirst drilling unit 11, thesecond arm 19 and thesecond drilling unit 23. This increases the flexibility and the accessibility at positioning thedrill rod 3 relative to theholder 17, compared with the known technology presented, for example, inWO0061907 second drill unit 23 can be mounted at thesecond arm 19 in a similar manner as thefirst drill unit 11 is mounted at thefirst arm 9, i.e. freely movably. Alternatively, theholder 17 can be mounted by means of a control device (not shown) that allows movement of theholder 17 relative to thesecond drilling unit 23 or relative to a base at which the holder is mounted. Thesecond arm 19 and thesecond drilling unit 23 may for example be constructed similarly to thefirst arm 9 and thefirst drilling unit 11, respectively. -
Fig. 3 illustrates theholder 17 inFig. 2 in more detail. Theholder 17 comprises ahousing 25 and aninner part 27 adapted to receive at least twodrill bits 1. This is possible because theinner part 27 comprises at least twoopenings opening corresponding drill bit 1. Thehousing 25 also comprises at least twoopenings openings inner portion 27 to enable receiving of respective drill bit. The holder inFig. 3 comprises anattachment portion 37 for attachment, i.e. mounting, of the holder at a base. Thehousing 25 is, for example, of metal or of a plastic material adapted for mining environment. Theinner part 27 comprises a flexible material such as rubber or a suitable plastic material. - Each
aperture corresponding drill bit 1 to be placed in the corresponding opening. Thus, friction forces are provided between an inner surface of the respective aperture and an outer surface of the respective drill bit. These frictional forces make it easier to hold drill bits in the holder, preventing the drill bits from slipping out or shaking out of the holder, for example during transportation or other handling. - The difference between the second diameter d2 and the first diameter d1 may, for example, be between 5-10 mm. This means that upon placing a drill bit in the
holder 17 and more specifically in theinner part 27 of theholder 17, the drill bit is pressed into an opening of theinner part 27 during deformation of the flexible material of the inner part. Since the inner part comprises a flexible material, theinner part 27 and more specifically the opening where the drill bit is positioned to the drill bit dimension is adapted. In this manner, the above-described frictional forces are created between theinner portion 27 and the drill bits located in theinner portion 27. The magnitude of these frictional forces depends on the difference between the second diameter d2 and the first diameter d1 so that the greater the difference, the greater the frictional forces. - As described above, the inner part comprises at least two
openings opening corresponding drill bit 1. Theopenings holder 17. Thus, the drill bits may have the same outer diameter or different outer diameters. Thus, drill bits of different dimensions and / or different characteristics can be placed in theholder 17. - For example, the
inner part 27 may be placed in thehousing 25 by inserting theinner part 27 into thehousing 25 from above, viewed in the position of thehousing 25 illustrated inFig. 3 . Alternatively, thehousing 25 may comprise an openable cover (not shown) through which theinner part 27 can be placed into thehousing 25 of theholder 17. - Alternatively, the
inner portion 27 may be configured so that the drill bits are held by magnetic forces, such as electromagnetic forces. Theinner part 27 may for example comprise grooves on the inside of saidopenings -
Fig. 4 illustrates a side view of theholder 17 shown inFig. 2 andFig. 3 where a plurality of crowns have been placed in theholder 17. According toFig. 4 , thedrill rod 3 has been positioned so that the axis of rotation of the drill rod Ab substantially coincides with the axis of rotation of adrill bit 1 Ak. When thedrill bit 1 is intended to be mounted on thedrill rod 3, thedrill rod 3 is displaced axially in a direction w towards theholder 17. Theholder 17 may for example include astop plate 39 mounted to prevent the drill bit movement out from the holder in the direction w when mounting thedrill bit 1 on the drill rod or at placing the drill bit in theholder 17. - As previously described, the
drill rod 3 may comprise, for example, outer threads with an outer diameter dy. Corresponding drill bit may comprise corresponding internal threads with an inner diameter di to enable mounting of the drill bit ondrill rod 3. -
Fig. 5 shows anexemplary method 100 for rock drilling. Themethod 100 can be performed, for example, by a control unit (not shown). - The
method 100 comprises: - aligning 101 a first drilling unit by using a first arm towards a drill bit located in a holder fixedly mounted to a support and
- configured to hold at least two drill bits, so that the axis of rotation of the drill bit substantially coincides with an axis of rotation of the drill bit, wherein a free movement of the first drilling unit relative to the holder is permitted,
- displacing 103 the drill rod axially forward towards the drill bit to a first position of the drill rod permitting mounting of the drill bit,
- mounting 105 the drill bit on the drill rod and
- displacing 107 the drill rod axially backward to a second position in which said drill bit has been removed from the holder.
- The
method 100 may comprise selecting 109 the drill bit intended to be mounted on the drill rod. - Further, the method may comprise bringing back 111 the drill bit into said holder by the first arm for disassembling the drill bit from the drill rod.
Claims (10)
- A rock drilling device (21) intended to be used for mounting a drill bit (1) on a drill rod (3) comprising:- a first arm (9) freely movably attached to a base unit (7),- a first drill unit (11) freely movably attached to said first arm (9), wherein the first drill unit (11) comprises said drill rod (3), a frame (13) and a feeding device (15) for axial displacement of said drill rod (3) along the axis of rotation of the drill rod (Ab) relative to said frame (13),- a holder (17) fixedly mounted to a support and configured to hold at least two drill bits, wherein a free movement of said first drilling unit (11) in relation to said holder (17) is permitted, and wherein the holder comprises a housing (25) and an inner part (27) adapted to receive at least two drill bits, wherein said inner part (27) is adapted to hold said at least two drill bits at transport and to permit mounting of each drill bit on a drill rod, wherein the inner part (27) is arranged to counteract a rotational movement and to permit an axial displacement of the drill bits in relation to said inner part (27) upon mounting of these on said drill rod, and- a control unit (25) arranged to:align the first drill unit (11), by said first arm (9) against said drill bit (1) located in the holder (17) so that the axis of rotation of the drill rod (Ab) substantially coincides with a rotation axis (Ak) of the drill bit (1),displace said drill rod (3) axially forward towards the drill bit (1) to a first position of said drill rod (3) permitting mounting of the drill bit (1),attach the drill bit (1) to the drill rod (3) anddisplace said drill rod (3) axially backward to a second position in which said drill bit (1) has been removed from said holder (17).
- The device (21) according to claim 1, comprising a second arm (19) freely movably attached to said base unit (7), wherein said holder (17) is mounted at said second arm (19).
- The device (21) according to claim 2, comprising a second drilling unit (23) freely movably arranged at said second arm (19).
- The device (21) according to any one of the preceding claims, wherein said inner part (27) comprises a flexible material such as rubber.
- The device (21) according to any one of the preceding claims, wherein said inner part (27) comprises at least two openings (29, 31) where each opening (29, 31) is arranged to receive a corresponding drill bit, wherein each opening (29, 31) has a diameter that is less than a largest diameter of said corresponding drill bit.
- A method (100) performed by the rock drilling device (21) according to any of the preceding claims for mounting a drill bit (1) on a drill rod (3) at a rock drilling machine (5), the method comprising the following steps:a) aligning (101) said first drilling unit (11), by using said first arm (9), towards the drill bit (1) located in a holder (17) fixedly mounted to a support and configured to hold at least two drill bits, so that the axis of rotation (Ab) of the drill rod substantially coincides with an axis of rotation (Ak) of said drill bit (1), wherein a movement of said first drilling unit (11) relative to said holder (17) is permitted,b) displacing (103) said drill rod (3) axially forward towards the drill bit (1) to a first position of said drill rod (3) permitting mounting of the drill bit (1)c) mounting (105) said drill bit (1) on said drill rod (3) andd) displacing (107) said drill rod (3) axially backward to a second position in which said drill bit (1) has been removed from said holder (17).
- The method according to claim 6, comprising selecting (109) said drill bit (1) intended to be mounted on said drill rod (3).
- The method according to claim 6 or 7, wherein said rock drill (5) comprises a second arm (19) freely movably attached to said base unit (7), said holder (17) being mounted at said second arm (19).
- The method according to any of claims 6-8, wherein said drill rod (3) comprises external threads and said drill bit (1) comprises corresponding internal threads, wherein said step of mounting (105) said drill bit (1) on said drill rod (3) comprises to screw tight the drill bit (1) on the drill rod (3).
- The method according to any of claims 6-9, comprising bringing back (111) said drill bit (1) into said holder (17) by said first arm (9) for disassembling the drill bit (1) from the drill rod (3).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE1651565A SE541693C2 (en) | 2016-11-29 | 2016-11-29 | Method, device and holder for mounting a drill bit |
PCT/SE2017/051073 WO2018101870A1 (en) | 2016-11-29 | 2017-10-31 | Method, apparatus and holder for mounting of a drill bit |
Publications (4)
Publication Number | Publication Date |
---|---|
EP3548691A1 EP3548691A1 (en) | 2019-10-09 |
EP3548691A4 EP3548691A4 (en) | 2020-09-30 |
EP3548691C0 EP3548691C0 (en) | 2023-06-07 |
EP3548691B1 true EP3548691B1 (en) | 2023-06-07 |
Family
ID=62244579
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17875615.1A Active EP3548691B1 (en) | 2016-11-29 | 2017-10-31 | Method, apparatus and holder for mounting of a drill bit |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP3548691B1 (en) |
CN (1) | CN110036176B (en) |
AU (1) | AU2017366970B2 (en) |
CA (1) | CA3043152A1 (en) |
CL (1) | CL2019001291A1 (en) |
RU (1) | RU2750372C2 (en) |
SE (1) | SE541693C2 (en) |
WO (1) | WO2018101870A1 (en) |
ZA (1) | ZA201902985B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2019100881B4 (en) * | 2018-08-10 | 2022-06-30 | Xceed Mining Services Pte. Ltd. | Blast hole drilling |
CA3195931A1 (en) * | 2020-12-23 | 2022-06-30 | Epiroc Rock Drills Aktiebolag | Drill bit change in face drill rig |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3976149A (en) * | 1972-02-08 | 1976-08-24 | Linden-Alimak Ab | Rock drill equipment having a mechanized drill bit exchange |
FI110805B (en) * | 1999-04-13 | 2003-03-31 | Sandvik Tamrock Oy | Arrangements for replacing a drilling component in a rock drilling device |
DE102004045404A1 (en) * | 2004-09-18 | 2006-03-30 | Klemm Bohrtechnik Zweigniederlassung Der Bauer Maschinen Gmbh | Drilling rig with drill tool magazine |
SE531726C2 (en) * | 2006-10-30 | 2009-07-21 | Atlas Copco Rock Drills Ab | Device and method for automatically replacing a drill bit on a drill rod as well as a computer program product and rock drilling rig provided with the device |
FI121437B (en) * | 2008-06-23 | 2010-11-15 | Sandvik Mining & Constr Oy | Rock drilling unit, drill bit changer, and method for changing drill bit |
FI121438B (en) * | 2008-06-23 | 2010-11-15 | Sandvik Mining & Constr Oy | Drill bit magazine, drill bit holder and method for changing drill bit in rock drilling machine |
KR20160022566A (en) * | 2014-08-20 | 2016-03-02 | 대우조선해양 주식회사 | Drill Bit Storage System |
EP3153654B1 (en) * | 2015-10-09 | 2019-04-24 | Sandvik Mining and Construction Oy | Rock drilling rig |
CN105350910B (en) * | 2015-12-11 | 2017-08-25 | 湖北首开机械有限公司 | A kind of anchoring drilling machine |
-
2016
- 2016-11-29 SE SE1651565A patent/SE541693C2/en unknown
-
2017
- 2017-10-31 CN CN201780073194.XA patent/CN110036176B/en active Active
- 2017-10-31 WO PCT/SE2017/051073 patent/WO2018101870A1/en unknown
- 2017-10-31 EP EP17875615.1A patent/EP3548691B1/en active Active
- 2017-10-31 RU RU2019120025A patent/RU2750372C2/en active
- 2017-10-31 CA CA3043152A patent/CA3043152A1/en active Pending
- 2017-10-31 AU AU2017366970A patent/AU2017366970B2/en active Active
-
2019
- 2019-05-10 CL CL2019001291A patent/CL2019001291A1/en unknown
- 2019-05-13 ZA ZA2019/02985A patent/ZA201902985B/en unknown
Also Published As
Publication number | Publication date |
---|---|
RU2019120025A (en) | 2021-01-11 |
CN110036176A (en) | 2019-07-19 |
SE541693C2 (en) | 2019-11-26 |
RU2750372C2 (en) | 2021-06-28 |
WO2018101870A1 (en) | 2018-06-07 |
ZA201902985B (en) | 2023-12-20 |
AU2017366970A1 (en) | 2019-05-30 |
SE1651565A1 (en) | 2018-05-30 |
RU2019120025A3 (en) | 2021-02-19 |
CN110036176B (en) | 2021-10-26 |
CA3043152A1 (en) | 2018-06-07 |
EP3548691A1 (en) | 2019-10-09 |
EP3548691A4 (en) | 2020-09-30 |
EP3548691C0 (en) | 2023-06-07 |
AU2017366970B2 (en) | 2023-04-13 |
CL2019001291A1 (en) | 2019-07-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2310616B1 (en) | Rock-drilling unit, drill bit changer, and method for changing drill bit | |
CN103982149B (en) | Rock drilling unit and the method changing drilling rod | |
EP3548691B1 (en) | Method, apparatus and holder for mounting of a drill bit | |
US11719053B2 (en) | Method of using a rod positioning device | |
FI110805B (en) | Arrangements for replacing a drilling component in a rock drilling device | |
US10294738B2 (en) | Drill rod changer, rock drilling unit and method of changing drill rods | |
US3976149A (en) | Rock drill equipment having a mechanized drill bit exchange | |
KR101686173B1 (en) | Rock drilling rod exchange device | |
JP6389104B2 (en) | Rod removal device for drilling machine | |
SE541992C2 (en) | Method, device and holder for mounting a drill bit | |
CN113494303A (en) | Anchor rod drilling machine | |
KR101839836B1 (en) | Apparatus for moving object | |
US20230235669A1 (en) | Handling device for handling expendables for a drill rig | |
EP4267830A2 (en) | Drill bit change in face drill rig | |
CN204024522U (en) | Drilling rod loading attachment and the horizontal directional drilling machine comprising this drilling rod loading attachment |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20190604 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
RIC1 | Information provided on ipc code assigned before grant |
Ipc: E21B 19/14 20060101ALI20200519BHEP Ipc: E21B 19/18 20060101AFI20200519BHEP Ipc: E21B 7/02 20060101ALI20200519BHEP Ipc: E21B 12/00 20060101ALI20200519BHEP |
|
A4 | Supplementary search report drawn up and despatched |
Effective date: 20200828 |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: E21B 12/00 20060101ALI20200824BHEP Ipc: E21B 19/18 20060101AFI20200824BHEP Ipc: E21B 7/02 20060101ALI20200824BHEP Ipc: E21B 19/14 20060101ALI20200824BHEP |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: E21B 7/02 20060101ALI20220530BHEP Ipc: E21B 12/00 20060101ALI20220530BHEP Ipc: E21B 19/14 20060101ALI20220530BHEP Ipc: E21B 19/18 20060101AFI20220530BHEP |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
INTG | Intention to grant announced |
Effective date: 20220714 |
|
GRAJ | Information related to disapproval of communication of intention to grant by the applicant or resumption of examination proceedings by the epo deleted |
Free format text: ORIGINAL CODE: EPIDOSDIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
INTC | Intention to grant announced (deleted) | ||
INTG | Intention to grant announced |
Effective date: 20221212 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE PATENT HAS BEEN GRANTED |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP Ref country code: AT Ref legal event code: REF Ref document number: 1575650 Country of ref document: AT Kind code of ref document: T Effective date: 20230615 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 602017069992 Country of ref document: DE |
|
U01 | Request for unitary effect filed |
Effective date: 20230704 |
|
U07 | Unitary effect registered |
Designated state(s): AT BE BG DE DK EE FI FR IT LT LU LV MT NL PT SE SI Effective date: 20230711 |
|
REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG9D |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230907 Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230607 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: RS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230607 Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230607 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230908 |
|
U21 | Renewal fee paid with penalty [unitary effect] |
Year of fee payment: 7 Effective date: 20231130 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230607 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231007 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SM Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230607 Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230607 Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230607 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231007 Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230607 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230607 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 602017069992 Country of ref document: DE |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20240308 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230607 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20231031 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20231031 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20231031 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20231031 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20231031 |