NL2031051B1 - Bolt mounting device and mounting method - Google Patents
Bolt mounting device and mounting method Download PDFInfo
- Publication number
- NL2031051B1 NL2031051B1 NL2031051A NL2031051A NL2031051B1 NL 2031051 B1 NL2031051 B1 NL 2031051B1 NL 2031051 A NL2031051 A NL 2031051A NL 2031051 A NL2031051 A NL 2031051A NL 2031051 B1 NL2031051 B1 NL 2031051B1
- Authority
- NL
- Netherlands
- Prior art keywords
- bit
- drill bit
- drilling assembly
- drilling
- frame
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000005553 drilling Methods 0.000 claims abstract description 101
- 239000000428 dust Substances 0.000 claims abstract description 40
- 230000033001 locomotion Effects 0.000 claims abstract description 31
- 239000011435 rock Substances 0.000 claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 42
- 239000007921 spray Substances 0.000 claims description 15
- 230000009467 reduction Effects 0.000 claims description 12
- 230000008859 change Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims 2
- 238000001514 detection method Methods 0.000 abstract description 10
- 238000010586 diagram Methods 0.000 description 10
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 238000003912 environmental pollution Methods 0.000 description 4
- 230000008054 signal transmission Effects 0.000 description 4
- 230000036541 health Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 208000028571 Occupational disease Diseases 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/003—Machines for drilling anchor holes and setting anchor bolts
-
- 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
- E21B10/00—Drill bits
- E21B10/36—Percussion drill bits
-
- 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
- E21B10/00—Drill bits
- E21B10/36—Percussion drill bits
- E21B10/38—Percussion drill bits characterised by conduits or nozzles for drilling fluids
-
- 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
- E21B10/00—Drill bits
- E21B10/44—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts
-
- 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
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
- E21B15/003—Supports for the drilling machine, e.g. derricks or masts adapted to be moved on their substructure, e.g. with skidding means; adapted to drill a plurality of wells
-
- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/01—Arrangements for handling drilling fluids or cuttings outside the borehole, e.g. mud boxes
- E21B21/015—Means engaging the bore entrance, e.g. hoods for collecting dust
-
- 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
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/22—Equipment for preventing the formation of, or for removal of, dust
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Structural Engineering (AREA)
- Remote Sensing (AREA)
- Geophysics (AREA)
- Earth Drilling (AREA)
Abstract
The present disclosure discloses a bolt mounting device and a mounting method. The bolt mounting device includes a frame, a dust reducing element, a drilling assembly and a bit. The drilling assembly is mounted on the frame, one end of the drilling assembly is connected to the bit and the bit is detachable, and the frame is provided with a controller capable of controlling motion of the drilling assembly, and allowing the drilling assembly to drive the bit to rotate and make reciprocating motion, and the drilling assembly is further configured to mount a bolt when the bit is removed, a hardness detection element is disposed on an inner wall of the bit to detect hardness of rock when the bit touches the rock, and the dust reducing element is disposed close to the bit and is configured to reduce dust when the bit is drilling.
Description
BOLT MOUNTING DEVICE AND MOUNTING METHOD
[01] The present disclosure relates to the field of tunnel construction technologies, and in particular to a bolt mounting device and a mounting method.
[02] In the prior art, a bolt drilling rig has the following disadvantages:
[03] (1) when a drill pipe 1s working, a large amount of dust will be produced during boring, and existing drill pipes cannot easily achieve dust reduction, thereby producing dust pollution, and resulting in occupational diseases and physical injuries of operators; and
[04] (2) when an existing drill pipe is working, the drill pipe is prone to overdrilling and vacant drilling because strength and hardness of a rock stratum at the head of the drill pipe and presence of hollow rock mass cannot be detected in time.
[05] An objective of the present disclosure is to provide a bolt mounting device and a mounting method to resolve the problems in the prior art, reduce dust pollution in an operating environment and improve operation efficiency.
[06] To achieve the objective, the present disclosure provides the following solutions:
[07] The present disclosure provides a bolt mounting device, including a frame, a dust reducing element, a drilling assembly and a bit, where the drilling assembly is mounted on the frame, one end of the drilling assembly is connected to the bit and the bit is detachable, and the frame is provided with a controller capable of controlling motion of the drilling assembly, and allowing the drilling assembly to drive the bit to rotate and make reciprocating motion so as to achieve drilling and retraction, and the drilling assembly is further configured to mount a bolt when the bit is removed; a hardness detection element is disposed on an inner wall of the bit to detect hardness of rock when the bit touches the rock, transmit a detected signal to the controller, and control motion of the drilling assembly in real time through the controller, so as to further control a working state of the bit; and the dust reducing element is disposed close to the bit and is configured to reduce dust when the bit is drilling.
[08] Preferably, the drilling assembly includes a telescopic element, a power element and a drill pipe, the telescopic element is mounted on the frame and is fixedly connected to the power element, the power element is fixedly connected to one end of the drill pipe, and the other end, away from the power element, of the drill pipe is connected to the bit and the bit is detachable; the telescopic element can drive the drill pipe and the bit to make reciprocating motion, and the power element can drive the drill pipe and the bit to rotate.
[09] Preferably, the telescopic element is a manipulator; and the power element is a motor.
[10] Preferably, the drill pipe is in threaded connection with the bit.
[11] Preferably, the dust reducing element includes a water tank, a pump, a water pipe and a spray head, the water tank and the pump are mounted on a table surface of the frame, the spray head is fixed onto the bit, is configured away from a drilling surface of the bit and is communicated with the water tank through the water pipe, the pump is located on the water pipe and is configured to pump water from the water tank into the water pipe, the water pipe is fixed inside the drilling assembly, and the spray head is configured to spray water for dust reduction during drilling of the bit.
[12] Preferably, the hardness detection element includes a vibration sensor, a wireless signal transmission element and a signal conversion processing element, the vibration sensor is fixed inside the bit, and the bit, when drilling into rock, can transmit a vibration signal to the vibration sensor, and enable the vibration sensor to transmit the vibration signal to the signal conversion processing element through the wireless signal transmission element; the signal conversion processing element is configured to analyze the vibration signal to obtain rock hardness, and transmit a rock hardness signal to the controller to control motion of the drilling assembly through the controller, so as to change the working state of the bit.
[13] Preferably, the bolt mounting device further includes a base and a traveling device, the frame is mounted on the base, the base is fixedly connected to the traveling device, and the traveling device is configured to drive the frame to move.
[14] Preferably, the traveling device is a crawler traveling device.
[15] Preferably, a plurality of hydraulic lifting elements are mounted between the base and the frame, upper ends of the hydraulic lifting elements are fixed at four corners on a lower end face of the frame respectively, lower ends of the hydraulic lifting elements are fixed to the base, and the hydraulic lifting elements are configured to drive the frame to lift and adjust an operating height of the bit.
[16] The present disclosure further discloses a bolt mounting method using the bolt mounting device according to any one of the technical solutions, including the following
S steps:
[17] Sl: turning on a dust reducing element to reduce dust around a borehole, controlling motion of a drilling assembly through a controller, and enabling the drilling assembly to drive a bit to rotate and move in a direction towards rock for boring, detecting hardness of the rock in real time through a hardness detection element during the boring, and adjusting a working state of the bit through the drilling assembly;
[18] SZ: turning off the dust reducing element, controlling motion of the drilling assembly through the controller, and enabling the drilling assembly to drive the bit to exit from the borehole without rotation of the bit;
[19] S3: removing the bit, mounting a bolt onto the drilling assembly, and controlling motion of the drilling assembly through the controller, so that the drilling assembly drives the bolt into the borehole for fixing the bolt; and
[20] S4: controlling the drilling assembly to retract through the controller.
[21] Compared with the prior art, the present disclosure has the following technical effects:
[22] According to the bolt mounting device and the mounting method provided by the present disclosure, the controller controls the drilling assembly to drive the bit to rotate and make reciprocating motion to achieve drilling and retraction, so as to drill a borehole for subsequent mounting of a bolt. The drilling assembly is further configured to mount the bolt when the bit is removed to feed the bolt into the borehole through the drilling assembly for mounting the bolt. The same drilling assembly is used to drive the bit for boring and mounting of the bolt, which saves cost without moving the device repeatedly, so that construction efficiency is improved. A hardness detection element is disposed on an inner wall of the bit to detect hardness and strength of rock and presence of hollow rock mass when the bit touches the rock, transmit a detected signal to the controller, and control motion of the drilling assembly in real time through the controller, so as to control a working state of the bit, thereby avoiding overdrilling and vacant drilling of the bit, and improving operation efficiency. Meanwhile, the working state of the bit is adjusted based on actual condition of the rock to save cost. The dust reducing element 1s disposed close to the bit and is configured to reduce dust when the bit is drilling, so as to avoid a large amount of dust floating in the air during drilling, causing environmental pollution and affecting health of operators.
[23] In order to explain the technical solutions in the embodiments of the present disclosure or in the prior art more clearly, the drawings used in the description of the embodiments will be brietly introduced below. Obviously, the drawings in the following description are merely some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[24] FIG. 1is a schematic diagram of a structure of a bolt mounting device according to Embodiment 1;
[25] FIG. 21s a schematic diagram of a structure of a frame according to Embodiment 1;
[26] FIG. 3 is a schematic diagram showing connection between a water tank and a drill pipe according to Embodiment 1,
[27] FIG. 4 is a schematic diagram of a structure of a drilling assembly according to
Embodiment 1;
[28] FIG. 5 is a structural diagram of a drill pipe connected to a bit according to
Embodiment I;
[29] FIG. 6 is a partial sectional view of the drill pipe connected to the bit according to Embodiment 1;
[30] FIG. 7 is a sectional view of a lower half of the bit according to Embodiment 1;
[31] FIG. 8 is a sectional view showing connection between the drill pipe and a bolt according to Embodiment 1;
[32] FIG. 9is a schematic diagram of a bolt mounting element connected to the bolt according to Embodiment 1;
[33] FIG. 10 is a schematic diagram of a structure of the bolt mounting element according to Embodiment 1;
[34] FIG. 11 is a schematic diagram of a structure of a power element according to
Embodiment 1;
[35] FIG. 12 is a schematic diagram of a structure of a crawler traveling device according to Embodiment 1;
[36] FIG. 13 is a diagram showing a transmission principle of a drive assembly for the crawler traveling device according to Embodiment 1; and
[37] FIG. 14 is a work flow chart of a hardness detection element according to
Embodiment 1;
[38] inthe figures: 100-bolt mounting device, 1-traveling device, 2-base, 3-hydraulic lifting element, 4-frame, 5-controller, 6-water tank, 7-telescopic element, 8-drill pipe, 9- bit, 10-spray head, 11-vibration sensor, 12-bolt, 13-water pipe, 14-power element, 15- mounting member, 16-pump, 17-drive motor, 18-gear, 19-wheels.
[39] The following clearly and completely describes the technical solutions in the embodiments of the present disclosure with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are merely some but not all of embodiments of the present disclosure. Based on the embodiments of the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts should fall within the protection scope of the present disclosure.
[40] An objective of the present disclosure is to provide a bolt mounting device and a mounting method to resolve technical problems of low operation efficiency, high cost and environmental pollution of existing bolt mounting devices.
[41] To make the objective, features and advantages of the present disclosure clearer and easier to understand, the present disclosure will be further described in detail with reference to the accompanying drawings and specific implementations.
Embodiment 1
[42] As shown in FIG. 1 to FIG. 12, the present disclosure provides a bolt mounting device 100, including a frame 4, a dust reducing element, a drilling assembly and a bit 9. The drilling assembly is mounted on the frame 4, one end of the drilling assembly is connected to the bit 9 and the bit 9 is detachable, and the frame 4 is provided with a controller 5 capable of controlling motion of the drilling assembly, and allowing the drilling assembly to drive the bit 9 to rotate and make reciprocating motion to achieve drilling and retraction, so as to drill a borehole for subsequent mounting of a bolt 12.
The drilling assembly is further configured to mount the bolt 12 when the bit 9 is removed to feed the bolt 12 into the borehole through the drilling assembly for mounting the bolt 12. The same drilling assembly is used to drive the bit 9 for boring and mounting of the bolt 12, which saves cost without moving the device repeatedly, so that construction efficiency is improved. A hardness detection element is disposed on an inner wall of the bit 9 to detect hardness and strength of rock and presence of hollow rock mass when the bit 9 touches the rock, transmit a detected signal to the controller 5, and control motion of the drilling assembly in real time through the controller 5, so as to control a working state of the bit 9, thereby avoiding overdrilling and vacant drilling of the bit 9, and improving operation efficiency. Meanwhile, the working state of the bit 9 is adjusted based on actual condition of the rock to save cost. The dust reducing element is disposed close to the bit 9 and is configured to reduce dust when the bit 9 is drilling, so as to avoid a large amount of dust floating in the air during drilling, causing environmental pollution and affecting health of operators.
[43] Specifically, the drilling assembly includes a telescopic element 7, a power element 14 and a drill pipe 8, the telescopic element 7 is mounted on the frame 4 and is fixedly connected to the power element 14, the power element 14 is fixedly connected to one end of the drill pipe 8, so that the telescopic element 7 can drive the power element 14, the drill pipe 8 and the bit 9 to move synchronously when the telescopic element is telescoping, thereby avoiding interaction between telescoping of the telescopic element 7 and rotation of the power element 14; and the other end, away from the power element 14, of the drill pipe 8 is connected to the bit 9 and the bit 9 is detachable; the telescopic element 7 can drive the drill pipe 8 and the bit 9 to make reciprocating motion, and the power element 14 can drive the drill pipe 8 and the bit 9 to rotate. To drill a borehole, the power element 14 is connected to the bit 9 to drill the borehole by rotation and movement of the bit 9. A mounting member 15 is fixed inside the drill pipe 8. To mount the bolt 12, the bit 9 is removed, and then the bolt 12 is inserted into the drill pipe 8 and clamped onto the mounting member 15 to achieve connection between the bolt 12 and the drill pipe 8, so as to enable the drill pipe 8 to drive the bolt 12 into the borehole.
[44] The telescopic element 7 is a manipulator capable of driving the drill pipe 8 and the bit 9 to move stably, and the power element 14 is a motor, which achieves stable rotation of the drill pipe 8 and the bit 9, so as to ensure normal boring and normal fixation of the bolt 12.
[45] The drill pipe 8 is in threaded connection with the bit 9 to facilitate disassembly,
and the bit 9 rotates in a direction consistent with a tightening direction of the drill pipe 8 and the bit 9, so as to avoid the bit 9 from falling off during drilling and affecting operation efficiency.
[46] The dust reducing element includes a water tank 6, a pump 16, a water pipe 13 and a spray head 10, the water tank 6 and the pump 16 are mounted on a table surface of the frame 4, the water tank 6 is configured to store water temporarily to achieve continuous dust reduction, and the pump 16 is mounted on the water pipe 13 and configured to pump water from the water tank 6 into the water pipe 13 to ensure stability of water outflow and continuous water outflow. The spray head 10 is fixed onto the bit 9 and is configured away from a drilling surface of the bit 9 to avoid the bit 9 from damaging the spray head 10 during drilling, and affecting the service life, and the spray head 10 is configured close to the bit 9 to reduce dust from sources of dust, and form a water mist barrier to improve dust reduction effect. The spray head 10 is configured to spray water for dust reduction during drilling of the bit 9, and the spray head 10 is communicated with the water tank 6 through the water pipe 13 fixed inside the drilling assembly, so that the water pipe 13 is accommodated to avoid the water pipe 13 from being exposed and damaged.
[47] The hardness detection element includes a vibration sensor 11, a wireless signal transmission element and a signal conversion processing element, the vibration sensor ll istfixed inside the bit 9, and the bit 9, when drilling into rock, can transmit a vibration signal to the vibration sensor 11 which vibrates to cause a change in resistance, thereby causing a change in current, and the vibration sensor 11 is enabled to transmit a current signal to the signal conversion processing element through the wireless signal transmission element; the signal conversion processing element is configured to analyze the current signal to obtain rock hardness, and transmit a rock hardness signal to the controller 5 to control motion of the drilling assembly through the controller 5, so as to change the working state of the bit 9, and adjust an advancing speed and a rotating speed of the bit 9 for real-time detection of rock strength and hardness, so as to change the working state of the bit 9 based on actual condition of the rock. Meanwhile, when a value detected by the hardness detection element exceeds a set value, the bit 9 stops working, thereby avoiding overdrilling and vacant drilling, and reducing cost.
[48] The bolt mounting device 100 provided in the embodiment further includes a base 2 and a traveling device 1, the frame 4 is mounted on the base 2 to ensure overall stability of the frame 4; the base 2 is fixedly connected to the traveling device 1, and the traveling device 1 is configured to drive the frame 4 to move, so as to facilitate overall movement of the bolt mounting device 100.
[49] The traveling device 1 is a crawler traveling device capable of adapting to
S different landforms, with high operation efficiency and long service life.
[50] A plurality of hydraulic lifting elements 3 are mounted between the base 2 and the frame 4, upper ends of the hydraulic lifting elements 3 are fixed at four corners on a lower end face of the frame 4 respectively, lower ends of the hydraulic lifting elements 3 are fixed to the base 2, and the hydraulic lifting elements 3 are configured to drive the frame 4 to lift and achieve lifting of the bit 9, thereby achieving construction on working faces at different heights and improving overall scope of application. [S1] The frame 4 is further provided with a driver’s seat, and equipped with a steering wheel, buttons and other elements to directly control motion of a drive assembly for the crawler traveling device, and thus control traveling of the crawler traveling device. More preferably, a drive motor 17 drives a gear 18 to rotate, and wheels 19 inside the crawler traveling device rotate through transmission of the gear 18 to achieve traveling of the crawler traveling device, so that an operator can directly control overall movement of the bolt mounting device 100, which facilitates operation.
Embodiment 2
[52] The embodiment provides a bolt mounting method using the bolt mounting device 100 according to Embodiment 1, including the following steps:
[53] SI: controlling motion of the drilling assembly through the controller 5, and enabling the drilling assembly to drive the bit 9 to rotate and move in a direction towards rock for boring, and turning on a dust reducing element to reduce dust around a borehole for dust reduction while boring, avoid environmental pollution, and avoid affecting health of operators, and detecting strength and hardness of the rock in real time through a hardness detection element during the boring to automatically adjust a working state of the bit 9 in real time;
[54] S2: turning off the dust reducing element, controlling motion of the drilling assembly through the controller 5, and enabling the drilling assembly to drive the bit 9 to exit from the borehole without rotation of the bit 9 to achieve retraction of the bit 9 after the boring for fixing a bolt 12;
[55] S3: removing the bit 9, mounting the bolt 12 onto the drilling assembly, and controlling motion of the drilling assembly through the controller 5, so that the drilling assembly drives the bolt 12 into the borehole for fixing the bolt 12; and [S6] S4: controlling the drilling assembly to retract through the controller 5 for next use
[57] Specific examples are used herein to illustrate the principle and implementations of the present disclosure. The above embodiments are described merely to help understand the method of the present disclosure and the core ideas thereof. Meanwhile, for those skilled in the art, there may be changes in specific implementations and application scope according to the ideas of the present disclosure. To sum up, the content of the specification should not be construed as limitations to the present disclosure.
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL2031051A NL2031051B1 (en) | 2022-02-23 | 2022-02-23 | Bolt mounting device and mounting method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL2031051A NL2031051B1 (en) | 2022-02-23 | 2022-02-23 | Bolt mounting device and mounting method |
Publications (1)
Publication Number | Publication Date |
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NL2031051B1 true NL2031051B1 (en) | 2023-09-06 |
Family
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Family Applications (1)
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NL2031051A NL2031051B1 (en) | 2022-02-23 | 2022-02-23 | Bolt mounting device and mounting method |
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NL (1) | NL2031051B1 (en) |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090000828A1 (en) * | 2006-08-11 | 2009-01-01 | Hall David R | Roof Bolt Bit |
WO2011139697A2 (en) * | 2010-04-28 | 2011-11-10 | Baker Hughes Incorporated | Pdc sensing element fabrication process and tool |
CN106639932A (en) * | 2017-02-22 | 2017-05-10 | 中建八局第四建设有限公司 | Anchor rod drilling machine and flying dust falling device thereof |
CN108756965A (en) * | 2018-06-01 | 2018-11-06 | 中国神华能源股份有限公司 | A kind of roofboltier |
CN109057733A (en) * | 2018-07-25 | 2018-12-21 | 中国十七冶集团有限公司 | A kind of side slope armature boring construction device for reducing dust |
US20190299352A1 (en) * | 2016-09-09 | 2019-10-03 | NejiLaw inc. | Cutting head, cutting bite, and cutting system |
US10605004B1 (en) * | 2016-07-29 | 2020-03-31 | Rei, Inc. | Intellegent blast-hole drill bit with redundant transducer wear sensor and remote recessed reflector antenna |
WO2021136776A1 (en) * | 2019-12-31 | 2021-07-08 | Element Six (Uk) Limited | Sensor elements for a cutting tool and methods of making and using same |
-
2022
- 2022-02-23 NL NL2031051A patent/NL2031051B1/en active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090000828A1 (en) * | 2006-08-11 | 2009-01-01 | Hall David R | Roof Bolt Bit |
WO2011139697A2 (en) * | 2010-04-28 | 2011-11-10 | Baker Hughes Incorporated | Pdc sensing element fabrication process and tool |
US10605004B1 (en) * | 2016-07-29 | 2020-03-31 | Rei, Inc. | Intellegent blast-hole drill bit with redundant transducer wear sensor and remote recessed reflector antenna |
US20190299352A1 (en) * | 2016-09-09 | 2019-10-03 | NejiLaw inc. | Cutting head, cutting bite, and cutting system |
CN106639932A (en) * | 2017-02-22 | 2017-05-10 | 中建八局第四建设有限公司 | Anchor rod drilling machine and flying dust falling device thereof |
CN108756965A (en) * | 2018-06-01 | 2018-11-06 | 中国神华能源股份有限公司 | A kind of roofboltier |
CN109057733A (en) * | 2018-07-25 | 2018-12-21 | 中国十七冶集团有限公司 | A kind of side slope armature boring construction device for reducing dust |
WO2021136776A1 (en) * | 2019-12-31 | 2021-07-08 | Element Six (Uk) Limited | Sensor elements for a cutting tool and methods of making and using same |
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