CN113585976B - Reaming device and multifunctional drilling and reaming hole forming equipment - Google Patents

Reaming device and multifunctional drilling and reaming hole forming equipment Download PDF

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Publication number
CN113585976B
CN113585976B CN202110824354.8A CN202110824354A CN113585976B CN 113585976 B CN113585976 B CN 113585976B CN 202110824354 A CN202110824354 A CN 202110824354A CN 113585976 B CN113585976 B CN 113585976B
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China
Prior art keywords
reaming
groove
wall
bolt
sleeve
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CN202110824354.8A
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CN113585976A (en
Inventor
杜明礼
陈洁
吴雪娇
刘福伟
陈珂晖
王子楷
张�杰
钟鼎
陈攀
马标
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Jiangsu Zhonghui Geotechnical Engineering Co ltd
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Jiangsu Zhonghui Geotechnical Engineering Co ltd
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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00Special methods or apparatus for drilling
    • E21B7/28Enlarging drilled holes, e.g. by counterboring
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/26Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E21B10/32Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/26Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E21B10/32Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
    • E21B10/322Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools cutter shifted by fluid pressure

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  • 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)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Earth Drilling (AREA)

Abstract

The invention discloses a reaming device and multifunctional hole forming equipment for drilling and reaming, which relate to the technical field of reaming devices and have the advantage of adjusting the reaming diameter, and the technical scheme is as follows: including the drilling rod and set up the standing groove of drilling rod bottom, the one end that the drilling rod outer wall relative both sides are close to the standing groove all is equipped with the spout with the standing groove intercommunication, and equal level in the spout slides and is connected with the one end to extend to the hole expanding board that the other end and the drilling rod outer wall flush in the standing groove, is equipped with the impeller that promotes two hole expanding boards along spout horizontal migration in the standing groove, and the drilling rod bottom is equipped with the drill bit through the installed part, and the notch of drill bit closed the standing groove.

Description

Reaming device and multifunctional drilling and reaming hole forming equipment
Technical Field
The invention relates to the technical field of machining of reaming devices, in particular to a reaming device and multifunctional drilling and reaming hole forming equipment.
Background
At present, because the underground engineering needs to manufacture a tensile device in the underground for fixing the basement to prevent the basement from floating upwards, a hole needs to be formed in the underground, the diameter of the lowest end of the hole is larger than that of the upper part, and the diameter of the reaming hole cannot be adjusted when the existing reaming device is used for reaming, the invention provides a solution.
Disclosure of Invention
Aiming at the technical defects, the invention aims to provide a reaming device and a multifunctional drilling and reaming hole forming device, which have the advantage of adjusting the reaming diameter.
In order to solve the technical problems, the invention adopts the following technical scheme:
The invention provides a reaming device which comprises a drill rod and a placing groove arranged at the bottom end of the drill rod, wherein one ends, close to the placing groove, of the two opposite sides of the outer wall of the drill rod are respectively provided with a chute communicated with the placing groove, reaming plates, one ends of the reaming plates extend into the placing groove and the other ends of the reaming plates are flush with the outer wall of the drill rod, pushing pieces for pushing the two reaming plates to horizontally move along the chute are arranged in the placing groove, the bottom end of the drill rod is provided with a drill bit through a mounting piece, and the drill bit seals a notch of the placing groove.
Through adopting above-mentioned technical scheme, when using, only need install the drill bit in the drilling rod bottom through the installed part, can bore holes, the drill bit then can seal the notch of standing groove this moment, reduce the phenomenon that mud got into the standing groove through the standing groove notch and take place, when needs to bore holes the lower extreme and bore holes, only need through the impeller, promote two reaming boards along spout horizontal migration, the one end that the reaming board flushes with the drilling rod outer wall then can remove outside the spout this moment, and rotate along the drilling rod, can bore holes the lower extreme this moment, can control the distance that reaming board one end removed outside the spout through the control impeller, thereby adjust reaming diameter, convenience simple to use.
Preferentially, the pushing piece comprises a push rod which is vertically and slidably connected in the placing groove, two opposite sides of the push rod are inclined planes, the inclined planes are provided with sliding grooves along the length direction of the inclined planes, two sliding grooves are slidably connected with sliding blocks which are fixedly connected with one sides of the reaming boards in the placing groove, two sides of the reaming boards in the placing groove are respectively contacted with the two inclined planes, and driving pieces for driving the push rod to vertically move in the placing groove are arranged in the placing groove.
Preferentially, a plurality of first balls which are in contact with the groove walls of the sliding grooves are arranged between the two side walls of the sliding blocks which are in contact with the sliding grooves, and a second ball which is in contact with the inclined surfaces is arranged on one side of the hole expanding plate which is in contact with the inclined surfaces.
Preferably, the driving piece comprises a cylinder arranged at the bottom of the placing groove, and one end of a piston rod of the cylinder is fixedly connected with the push rod.
Preferentially, the driving piece comprises a threaded hole formed in the top end of the push rod, a screw is connected in the threaded hole in a threaded mode, a motor is fixedly connected to the bottom of the placing groove, and one end of a rotating shaft of the motor is fixedly connected with the screw.
Preferentially, when one end of each reaming plate is pushed to horizontally move by the pushing piece, one side of each reaming plate, which is flush with the outer wall of the drill rod, can move out of the corresponding sliding groove, and at the moment, one end, close to the sliding groove, of the outer wall of the drill rod is provided with scraping plates which are in circumferential contact with the outer wall of each reaming plate along the circumferential direction of the sliding groove.
Preferentially, a plurality of scrapers for reaming are distributed on one side of the two reaming plates, which moves out of the chute.
Preferentially, the mounting comprises a sleeve arranged at one end of the drill bit close to the drill rod and a semicircular first fixing block arranged in the sleeve, the bottom end of the drill rod is positioned in the sleeve and provided with a semicircular second fixing block, the first fixing block is positioned at one side of the second fixing block, the first fixing block and the second fixing block form a whole circular ring, a groove penetrating through the drill rod is horizontally formed in the outer wall of the sleeve, and a first bolt is connected with the groove in a threaded mode.
Preferentially, the two opposite sides of the outer wall of the sleeve are respectively provided with an embedded groove communicated with the groove, the first bolt comprises a second bolt and a third bolt, one ends of the second bolt and the third bolt are in threaded connection with the groove, the other ends of the second bolt and the third bolt are respectively positioned in the two embedded grooves and are in conflict with the bottoms of the embedded grooves, the bottom of the sleeve is fixedly connected with a plugboard which is vertically inserted into the placing grooves through the notch of the placing grooves and is in contact with the groove walls of the placing grooves, the plugboard is positioned at the center of a whole circular ring formed by the first fixing block and the second fixing block, and the groove penetrates through the plugboard.
Another object of the present invention is to provide a multifunctional hole forming apparatus for drilling and reaming, comprising a reaming device as described above.
The invention has the beneficial effects that: when using, only need install the drill bit in the drilling rod bottom through the installed part, can bore holes, the drill bit then can seal the notch of standing groove this moment, reduce the phenomenon that mud got into the standing groove through the standing groove notch and take place, when need to bore holes the lower extreme and bore holes, only need through the impeller, promote two reaming boards along spout horizontal migration, the one end that the reaming board flushes with the drilling rod outer wall then can remove outside the spout this moment, and rotate along the drilling rod, can bore holes the lower extreme this moment, can control reaming board one end and remove the distance outside the spout through control impeller, thereby adjust reaming diameter, convenience simple to use.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a first embodiment;
fig. 2 is a schematic structural view of a push rod according to the first embodiment;
FIG. 3 is an enlarged schematic view of the structure of the portion A in FIG. 2;
fig. 4 is a schematic structural view of a cylinder according to the first embodiment;
Fig. 5 is a schematic structural view of a first embodiment for embodying a second ball;
fig. 6 is a schematic structural diagram of a second fixing block according to the first embodiment.
Reference numerals illustrate:
In the figure: 1. a drill rod; 2. a placement groove; 3. a chute; 4. a hole expansion plate; 5. a drill bit; 6. a push rod; 7. an inclined plane; 8. a sliding groove; 9. a slide block; 10. a first ball; 12. a second ball; 13. a cylinder; 14. a threaded hole; 15. a screw; 16. a motor; 17. a scraper; 18. a scraper; 19. a sleeve; 20. a first fixed block; 21. a second fixed block; 22. a groove; 23. a first bolt; 24. inserting plate; 221. an embedding groove; 231. a second bolt; 232. and a third bolt.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Embodiment one: the utility model provides a reaming device, as in fig. 1 and 2, including drilling rod 1 and setting up standing groove 2 in drilling rod 1 bottom, drilling rod 1 outer wall opposite sides all is equipped with the spout 3 that is close to standing groove 2 one end that communicates with standing groove 2, and equal level in the spout 3 slides and is connected with one end to extend to the reaming board 4 that the other end flushes with drilling rod 1 outer wall in the standing groove 2, is equipped with the impeller that promotes two reaming boards 4 along 3 horizontal migration of spout in the standing groove 2, and drilling rod 1 bottom is equipped with drill bit 5 through the installed part, and drill bit 5 seals the notch of standing groove 2.
When the drilling device is used, as shown in fig. 1 and 2, the drill bit 5 is only required to be installed at the bottom end of the drill rod 1 through the installation piece, the drill bit 5 can seal the notch of the placing groove 2, slurry is reduced to enter the placing groove 2 through the notch of the placing groove 2, when the lower end of the drill hole needs to be reamed, the two reaming plates 4 are pushed to horizontally move along the sliding groove 3 through the pushing piece, at the moment, one end of the reaming plate 4 flush with the outer wall of the drill rod 1 can move out of the sliding groove 3 and rotate along with the drill rod 1, at the moment, the lower end of the drill hole can be reamed, the distance from one end of the reaming plate 4 to the outside of the sliding groove 3 can be controlled through controlling the pushing piece, and the reaming diameter is adjusted.
As shown in fig. 2, the pushing member includes push rod 6 in standing groove 2 that vertically slides and connects, push rod 6 is inclined plane 7 on the opposite two sides, and along inclined plane 7's length direction all be equipped with slide groove 8 on the inclined plane 7, all slide in two slide grooves 8 and be connected with and extend to one side fixedly connected's slider 9 in the standing groove 2 with reaming board 4, one side that two reaming boards 4 extend to in the standing groove 2 all contacts with two inclined planes 7 respectively, be equipped with the driving member of driving push rod 6 vertical movement in standing groove 2 in the standing groove 2, the purpose that this set up only need through driving member drive push rod 6 in standing groove 2 when needs promote two reaming boards 4 along spout 3 horizontal migration can, at this moment because push rod 6 is inclined plane 7 on the opposite two sides, and slide groove 8 on inclined plane 7 slide and be connected with and reaming board 4 extend to one side fixedly connected's slider 9 in the standing groove 2, so when driving push rod 6 in standing groove 2 vertical movement, through inclined plane 7, slide groove 8, the cooperation of slider 9 can promote reaming board 4 along spout 3 horizontal migration, and use is simple and convenient.
As shown in fig. 2, 3 and 5, a plurality of first balls 10 which are abutted against the walls of the sliding groove 8 are arranged between the two sliding blocks 9 and the side walls abutted against the sliding groove 8, a second ball 12 which is abutted against the inclined surface 7 is arranged on one side of the two reaming boards 4, which is in contact with the inclined surface 7, and the purpose of the arrangement is that the friction force of the sliding blocks 9 during moving in the sliding groove 8 can be reduced through the first balls 10 and the second balls 12, so that the sliding blocks 9 can move in the sliding groove 8 conveniently, and the reaming boards 4 can be pushed to move horizontally along the sliding groove 3 conveniently, so that the use is simple and convenient.
As shown in fig. 4, the driving member includes a cylinder 13 disposed at the bottom of the placement groove 2, and one end of a piston rod of the cylinder 13 is fixedly connected with the push rod 6, so that when the push rod 6 needs to be driven to move vertically in the placement groove 2, only the cylinder 13 needs to be controlled, and at this moment, one end of the piston rod of the cylinder 13 drives the push rod 6 to move vertically in the placement groove 2, so that the driving member is simple and convenient to use.
As shown in fig. 2, or the driving member includes a threaded hole 14 formed at the top end of the push rod 6, and the threaded hole 14 is internally threaded with a screw 15, the bottom of the accommodating groove 2 is fixedly connected with a motor 16, and one end of a rotating shaft of the motor 16 is fixedly connected with the screw 15, so that when the push rod 6 needs to be driven to move vertically in the accommodating groove 2, the motor 16 is only required to be controlled, and at the moment, one end of the rotating shaft of the motor 16 drives the screw 15 to rotate, and at the moment, the screw 15 is in threaded connection with the threaded hole 14, so that when the screw 15 rotates, the push rod 6 can be driven to move vertically in the accommodating groove 2 through the cooperation of the screw 15 and the threaded hole 14, and the driving member is simple and convenient to use.
As shown in fig. 1, when pushing two reaming boards 4 one end horizontal migration through the impeller, one side that two reaming boards 4 flush with the outer wall of drilling rod 1 then can remove outside spout 3, the one end that the outer wall of drilling rod 1 is close to spout 3 all is equipped with along the circumference of spout 3 with reaming board 4 outer wall contact all around this moment, the scraper blade 17 can not influence drill bit 5 work, this aim at that sets up can remove to spout 3 in after reaming board 4 reaming is accomplished through scraper blade 17, scrape away the earth or the mud that are glued all around reaming board 4 outer wall, reduce earth or mud and follow the phenomenon emergence that reaming board 4 gets into in the standing groove 2 through spout 3, and is simple to use.
As shown in fig. 1, a plurality of scrapers 18 for reaming are distributed on one side of the two reaming plates 4 outside the chute 3, the purpose of the arrangement is to facilitate reaming of the reaming plates 4 by the scrapers 18, when the reaming plates 4 are moved into the chute 3 after reaming is completed, and when one side of the reaming plates 4 is level with the outer wall of the drill pipe 1, the scrapers 18 are located in a circular space formed by the scrapers 17.
As shown in fig. 2 and 6, the installation member comprises a sleeve 19 arranged at one end of the drill bit 5 near the drill rod 1 and a semicircular first fixing block 20 arranged in the sleeve 19, wherein the bottom end of the drill rod 1 is positioned in the sleeve 19 and provided with a semicircular second fixing block 21, the first fixing block 20 is positioned at one side of the second fixing block 21, the first fixing block 20 and the second fixing block 21 form a complete circle, a groove 22 penetrating through the drill rod 1 is horizontally formed in the outer wall of the sleeve 19, a first bolt 23 is connected in the groove 22 in a threaded manner, the installation member is used for installing the drill bit 5 at the bottom end of the drill rod 1, only the bottom end of the drill rod 1 is required to be vertically inserted into the sleeve 19, at this moment, the first fixing block 20 is positioned at one side of the second fixing block 21 and forms a complete circle, then the first bolt 23 is screwed in the groove 22, at this moment, the drill bit 5 can be installed at the bottom end of the drill rod 1, the complete circle formed by the first fixing block 20 and the second fixing block 21 can be reduced, when the drill bit 1 drives the sleeves 19 and the drill bit 5 into the ground through the first bolt 23 and the groove 22, the first bolt 23 breaks, and the use is simple and convenient.
As shown in fig. 2, the two opposite sides of the outer wall of the sleeve 19 are respectively provided with an embedded groove 221 communicated with the groove 22, the first bolt 23 comprises a second bolt 231 and a third bolt 232, one ends of the second bolt 231 and the third bolt 232 are respectively in the groove 22, the other ends of the second bolt 231 and the third bolt 232 are respectively positioned in the two embedded grooves 221 and are abutted against the bottom of the embedded groove 221, the bottom of the barrel in the sleeve 19 is fixedly connected with a plugboard 24 which is vertically inserted into the embedded groove 2 through the notch of the placing groove 2 and is contacted with the groove wall of the placing groove 2, the plugboard 24 is positioned in the center of the whole circular ring formed by the first fixed block 20 and the second fixed block 21, the groove 22 penetrates through the plugboard 24, the placing groove 2 is a square groove, and the purpose of the arrangement is to further reduce the phenomenon that when the drill rod 1 drives the sleeve 19 and the drill bit 5 to drill through the first bolt 23 and the groove 22 formed by the second bolt 231 and the third bolt 232, the phenomenon that the first bolt 23 is greatly broken is stressed when the end of the second bolt 231 and the third bolt 232 is positioned in the embedded groove 2 is not affected by the embedded groove 5 to drill into the ground, and the drill bit 1 is easy to use.
Embodiment two: a multifunctional telescopic high-pressure rotary jetting drilling machine comprises the first embodiment.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims (7)

1. The reaming device is characterized by comprising a drill rod (1) and a placing groove (2) arranged at the bottom end of the drill rod (1), wherein one ends, close to the placing groove (2), of the two opposite sides of the outer wall of the drill rod (1) are respectively provided with a chute (3) communicated with the placing groove (2), the chute (3) is internally and horizontally connected with a reaming board (4) with one end extending into the placing groove (2) and the other end being flush with the outer wall of the drill rod (1), a pushing piece for pushing the two reaming boards (4) to horizontally move along the chute (3) is arranged in the placing groove (2), the bottom end of the drill rod (1) is provided with a drill bit (5) through a mounting piece, and the drill bit (5) seals a notch of the placing groove (2);
The pushing piece comprises push rods (6) which are vertically connected in the placing grooves (2) in a sliding mode, inclined planes (7) are arranged on two opposite faces of the push rods (6), sliding grooves (8) are formed in the inclined planes (7) along the length direction of the inclined planes (7), sliding blocks (9) which are fixedly connected with one sides of the hole expansion plates (4) extending into the placing grooves (2) are connected in the sliding grooves (8) in a sliding mode, one sides of the hole expansion plates (4) extending into the placing grooves (2) are respectively contacted with the two inclined planes (7), and driving pieces which drive the push rods (6) to vertically move in the placing grooves (2) are arranged in the placing grooves (2);
The mounting piece comprises a sleeve (19) arranged at one end of the drill bit (5) close to the drill rod (1) and a semicircular first fixing block (20) arranged in the sleeve (19), wherein the bottom end of the drill rod (1) is positioned in the sleeve (19) and provided with a semicircular second fixing block (21), the first fixing block (20) is positioned at one side of the second fixing block (21), the first fixing block (20) and the second fixing block (21) form a whole circular ring, a groove (22) penetrating through the drill rod (1) is horizontally formed in the outer wall of the sleeve (19), and a first bolt (23) is connected with the groove (22) in a threaded manner;
The utility model discloses a socket, including sleeve (19), recess (22) are fixed on the inner wall of the socket, sleeve (19) outer wall opposite both sides all are equipped with recess (22) communicating embedded groove (221), first bolt (23) include second bolt (231), third bolt (232), and in second bolt (231), the one end of third bolt (232) all threaded connection is in recess (22), the other end all is located two embedded grooves (221) respectively to contradict with the tank bottom of embedded groove (221), barrel head fixedly connected with is through vertically inserting picture peg (24) of standing groove (2) notch in standing groove (2) and with standing groove (2) cell wall contact in sleeve (19), and picture peg (24) are located the center that first fixed block (20) and second fixed block (21) formed whole ring, recess (22) run through picture peg (24).
2. A reaming device according to claim 1, characterized in that a plurality of first balls (10) which are in contact with the walls of the sliding groove (8) are arranged between the side walls of the sliding blocks (9) which are in contact with the sliding groove (8), and a second ball (12) which is in contact with the inclined surface (7) is arranged on the side of the two reaming plates (4) which is in contact with the inclined surface (7).
3. A reaming device according to claim 1, characterized in that the driving element comprises a cylinder (13) arranged at the bottom of the recess (2), and that one end of the piston rod of the cylinder (13) is fixedly connected to the push rod (6).
4. A reaming device according to claim 1, characterized in that the driving member comprises a threaded hole (14) formed in the top end of the push rod (6), a screw (15) is connected to the threaded hole (14) in a threaded manner, a motor (16) is fixedly connected to the bottom of the placing groove (2), and one end of a rotating shaft of the motor (16) is fixedly connected to the screw (15).
5. A reaming device according to claim 1, characterized in that when one end of two reaming plates (4) is pushed by a pushing member to move horizontally, the side of two reaming plates (4) flush with the outer wall of the drill pipe (1) moves out of the chute (3), and at this time, one end of the outer wall of the drill pipe (1) close to the chute (3) is provided with scraping plates (17) in contact with the periphery of the outer wall of the reaming plates (4) along the circumferential direction of the chute (3).
6. A reaming device according to claim 5, characterized in that the sides of the two hole-enlarging plates (4) which are moved outside the chute (3) are each provided with a number of blades (18) for reaming.
7. A multifunctional hole forming device for drilling and reaming, characterized by comprising a reaming device according to any one of claims 1-6.
CN202110824354.8A 2021-07-21 2021-07-21 Reaming device and multifunctional drilling and reaming hole forming equipment Active CN113585976B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114151014A (en) * 2021-11-30 2022-03-08 武穴市明锐机械股份有限公司 Full-automatic easy-to-draw-in type pipe-following reaming drill bit

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Publication number Priority date Publication date Assignee Title
CN2301530Y (en) * 1997-08-06 1998-12-23 地质矿产部勘探技术研究所 Anchor rod base-enlarging drill bit
CN102650193A (en) * 2012-05-17 2012-08-29 苏州市能工基础工程有限责任公司 Combined drill
CN202970476U (en) * 2012-11-23 2013-06-05 安徽省地质矿产勘查局327地质队 Hydraulic pressure alarm serial-connecting type drilling reamer for geology core misering
CN203769658U (en) * 2014-04-04 2014-08-13 中铁西北科学研究院有限公司 Slope tooth-shaped anchor cable chambering bit
CN107083923A (en) * 2017-06-20 2017-08-22 西南石油大学 Controllable diameter changeable borehole-enlarging drilling tool
CN211692322U (en) * 2019-11-26 2020-10-16 中铁第四勘察设计院集团有限公司 Bottom expanding drill bit
CN211950339U (en) * 2020-02-16 2020-11-17 武汉金瑞威基础工程有限公司 Drilling tool for expanding head of anti-floating anchor rod
CN113107364A (en) * 2021-03-30 2021-07-13 中煤科工集团西安研究院有限公司 Integrated drilling tool for directional drilling and reaming underground coal mine and directional drilling reaming-while-drilling method

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2301530Y (en) * 1997-08-06 1998-12-23 地质矿产部勘探技术研究所 Anchor rod base-enlarging drill bit
CN102650193A (en) * 2012-05-17 2012-08-29 苏州市能工基础工程有限责任公司 Combined drill
CN202970476U (en) * 2012-11-23 2013-06-05 安徽省地质矿产勘查局327地质队 Hydraulic pressure alarm serial-connecting type drilling reamer for geology core misering
CN203769658U (en) * 2014-04-04 2014-08-13 中铁西北科学研究院有限公司 Slope tooth-shaped anchor cable chambering bit
CN107083923A (en) * 2017-06-20 2017-08-22 西南石油大学 Controllable diameter changeable borehole-enlarging drilling tool
CN211692322U (en) * 2019-11-26 2020-10-16 中铁第四勘察设计院集团有限公司 Bottom expanding drill bit
CN211950339U (en) * 2020-02-16 2020-11-17 武汉金瑞威基础工程有限公司 Drilling tool for expanding head of anti-floating anchor rod
CN113107364A (en) * 2021-03-30 2021-07-13 中煤科工集团西安研究院有限公司 Integrated drilling tool for directional drilling and reaming underground coal mine and directional drilling reaming-while-drilling method

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CN113585976A (en) 2021-11-02

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