CN114776223A - Drilling and expansion combined type rock breaking hole-expanding cutter head of raise boring machine and rock breaking method - Google Patents
Drilling and expansion combined type rock breaking hole-expanding cutter head of raise boring machine and rock breaking method Download PDFInfo
- Publication number
- CN114776223A CN114776223A CN202210416366.1A CN202210416366A CN114776223A CN 114776223 A CN114776223 A CN 114776223A CN 202210416366 A CN202210416366 A CN 202210416366A CN 114776223 A CN114776223 A CN 114776223A
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- China
- Prior art keywords
- pull rod
- rock breaking
- rock
- drilling
- expanding
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- 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.)
- Withdrawn
Links
- 239000011435 rock Substances 0.000 title claims abstract description 69
- 238000005553 drilling Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000005096 rolling process Methods 0.000 claims abstract description 7
- 238000004901 spalling Methods 0.000 abstract description 9
- 238000005299 abrasion Methods 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Images
Classifications
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- 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
- E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
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- 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
- E21B10/08—Roller bits
- E21B10/14—Roller bits combined with non-rolling cutters other than of leading-portion type
-
- 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
- E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
- E21B10/28—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with non-expansible roller cutters
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
- E21C25/58—Machines slitting by drilling hole on hole
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D3/00—Raising shafts, i.e. working upwards from the bottom
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Earth Drilling (AREA)
Abstract
The invention provides a drilling and expanding combined type hole-expanding cutter head of a raise boring machine for rock breaking and a rock breaking method. According to the invention, the rock breaking and spalling of the inserted hob are combined, the rock is broken by rolling through the inserted hob, the inserted hob breaks the rock to form the annular cavity, and then the rock inside the annular cavity is spalled and broken through the spalling block, so that the operation is safe, the energy consumption is saved, the abrasion of the cutter is reduced, and the hard rock spalling efficiency is improved.
Description
Technical Field
The invention relates to the technical field of raise boring machines, in particular to a reaming cutter head of a raise boring machine for drilling and expanding combined rock breaking and a rock breaking method.
Background
The reaming cutter disc comprises a disc body and a hobbing cutter installed on the disc body, the disc body is used for fixing the hobbing cutter, the main shaft drives the disc body to rotate during use, the hobbing cutter performs circular motion around the central line of the main shaft to cut, the reaming cutter disc is mainly used for drilling deep well tunnels, and along with the gradual scale of underground mining industry in China, the mining demand of mines on large-diameter and deep raise wells is increasingly large, so that the reaming cutter disc is more and more commonly used in the drilling industry. The existing hole expanding cutter head is mainly used for breaking rock by rolling of a hobbing cutter in the using process, and the hobbing cutter is extremely easy to wear, so that the hobbing cutter needs to be frequently replaced. Therefore, the invention provides a reaming cutter head of a drilling and expanding combined type rock breaking raise boring machine, which solves the technical problem.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a reaming cutter head of a drilling and expansion combined type rock breaking raise boring machine.
The utility model provides a brill bloated combination formula broken rock's raise boring machine reaming blade disc, includes the disk body, disk body top edge evenly distributed has the multiunit to inlay the tooth hobbing cutter, disk body top center is equipped with the pull rod, the inside chamber that holds that is equipped with of pull rod, pull rod lower part outer wall sliding connection has the edge a plurality of bloated pieces of pull rod circumference evenly distributed, bloated piece can be followed the pull rod radial slide extremely the pull rod is outside, it is equipped with and is used for the drive to hold the intracavity the gliding actuating mechanism of bloated piece, the disk body bottom is the fretwork form.
Preferably, each group of the inserted hob is two, and the projection included angle of the horizontal plane of the axes of the two inserted hobs is 18 degrees, and the included angle points to the pull rod; one of the inserted hob cutters is close to the pull rod at the end with the larger diameter, and the other inserted hob cutter is close to the pull rod at the end with the smaller vertical drop.
Preferably, the disc body comprises a base plate, a support plate and a rib plate, a plurality of hollowed-out areas are arranged on the base plate, the support is perpendicular to and fixedly connected with the base plate, the support plate is arranged at the top end of the support, the rib plate is fixedly connected with the support and the support plate respectively, and the tooth-inlaid hob is arranged at the top of the support plate.
Preferably, the insert hob is four groups, and the expansion blocks are four.
The invention also provides a rock breaking method which is realized based on the reaming cutterhead of the drilling and expansion combined type rock breaking raise boring machine, and the rock breaking method comprises the following steps:
(1) the drill rod penetrates into the bottom of the shaft along the guide hole, and a reaming cutter head of the drilling and expanding combined type rock breaking raise boring machine is installed;
(2) the ground host machine provides torque and tension for the drill rod, the inserted hob rotates after contacting with the rock, the rock is broken through rolling, and a hole expanding cutter head of the drilling and expanding combined type rock breaking raise upwards for one stroke;
(3) the drill rod stops rotating and pulling, a driving mechanism in the pull rod is started to drive the expansion block to move to the outside of the pull rod to crack and break the rock, and the broken rock falls off through the hollow part at the bottom of the tray body;
(4) after the expansion block is controlled to shrink by a driving mechanism in the pull rod, the work is stopped;
(5) and (5) repeating the steps (2) to (4) and starting the next stroke operation until the hole expanding cutter head of the reverse well drilling machine for drilling and expanding the combined rock breaking drills out of the ground.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the rock breaking and the spalling rock breaking of the inserted hob are combined, the rock breaking is performed by rolling through the inserted hob, the inserted hob breaks the rock to form the annular cavity, and then the spalling breaking is performed on the rock on the inner side of the annular cavity through the expansion block, so that the operation is safe, the energy consumption is saved, the abrasion of the cutter can be reduced, and the hard rock breaking efficiency is improved.
Drawings
FIG. 1 is a schematic three-dimensional structure of a reaming cutterhead of a drilling and expanding combined rock-breaking raise boring machine according to the present invention;
FIG. 2 is a top plan view of a reaming cutterhead of the drilling and expansion combination rock breaking raise of the present invention;
FIG. 3 is a schematic structural diagram of a tray body according to the present invention;
FIG. 4 is a schematic diagram of rock breaking in the present invention;
FIG. 5 is a flow chart of a rock breaking method of the present invention.
Description of the reference numerals
1-a disc body, 2-an inserted hob, 3-a pull rod, 4-an expansion block, 5-a tool apron, 6-a chassis, 7-a bracket, 8-a supporting plate and 9-a rib plate.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention can be made by those skilled in the art after reading the teaching of the present invention, and these equivalents also fall within the scope defined by the present application.
As shown in fig. 1 to 4, an embodiment of the invention provides a reaming cutterhead of a drilling and expanding combined type raise boring machine for breaking rock, which comprises a cutterhead body 1, wherein a plurality of groups of tooth-inlaid hobs 2 are uniformly distributed on the edge of the top of the cutterhead body 1, a pull rod 3 is arranged at the center of the top of the cutterhead body 1, a containing cavity is arranged inside the pull rod 3, a plurality of expanding blocks 4 which are uniformly distributed along the circumferential direction of the pull rod 3 are connected to the outer wall of the lower part of the pull rod 3 in a sliding manner, the expanding blocks 4 can radially slide to the outside of the pull rod 3 along the pull rod 3, a driving mechanism for driving the expanding blocks 4 to slide is arranged in the containing cavity, and the bottom of the cutterhead body 1 is hollowed. Specifically, the inserted hob cutters 2 can be arranged into four groups, and the inserted hob cutters 2 are installed on the disc body 1 through the cutter base 5; the number of the expansion blocks 4 can be four, the driving mechanism drives the expansion blocks 4 to radially slide to the outside of the pull rod 3 along the pull rod 3 to extrude rocks and perform spalling and rock breaking on the rocks, and the driving mechanism can also drive the expansion blocks 4 to shrink; the bottom of the tray body 1 is hollowed out for the broken stone after spalling to pass through and fall.
In some embodiments, there are two of the inserted hob 2 in each set, and the projection angle of the horizontal plane of the axes of the two inserted hobs 2 is 18 degrees, and the angle is directed to the pull rod 3; one of the inserted hob 2 has a larger diameter and is close to the pull rod 3, and the other inserted hob 2 has a smaller diameter and is close to the pull rod 3.
In some embodiments, the disc body 1 includes a chassis 6, a support 7, a support plate 8 and a rib plate 9, a plurality of hollow areas are provided on the chassis 6, the support 7 is perpendicular to and fixedly connected with the chassis 6, the support plate 8 is provided at the top end of the support 7, the rib plate 9 is respectively fixedly connected with the support 7 and the support plate 8, and the inserted tooth hob 2 is provided at the top end of the support plate 8.
The embodiment of the invention also provides a rock breaking method, which is realized based on the reaming cutterhead of the drilling and expansion combined type rock breaking raise boring machine, and comprises the following steps:
(1) the drill rod penetrates into the bottom of the shaft along the guide hole, and a reaming cutter head of the drilling and expanding combined type rock breaking raise boring machine is installed;
(2) the ground host provides torque and tension for the drill rod, the embedded hob 2 rotates after contacting with the rock, the rock is broken by rolling, and the reaming cutterhead of the drilling and expanding combined type rock breaking raise a stroke upwards;
(3) the drill rod stops rotating and pulling, the driving mechanism in the pull rod 3 is started, the expansion block 4 is driven to move to the outside of the pull rod 3 to crack and break rocks, and the broken rocks fall through the hollow part at the bottom of the disc body 1;
(4) after the expansion block 4 is controlled to contract by a driving mechanism in the pull rod 3, the work is stopped;
(5) and (5) repeating the step (2) to the step (4), and starting the next stroke operation until the hole reaming cutter head of the well drilling and expanding combined type rock breaking raise drills out of the ground.
The rock breaking method of the reaming cutterhead of the drilling and expansion combined rock breaking raise boring machine in the embodiment combines the rock breaking and the spalling of the inserted hob 2, firstly carries out rolling rock breaking through the inserted hob 2, forms a ring cavity after the rock breaking of the inserted hob 2, and then carries out spalling and breaking on the rock on the inner side of the ring cavity through the expansion block 4, so that the operation is safe, the energy consumption is saved, the abrasion of the cutter can be reduced, and the hard rock breaking efficiency is improved.
Claims (5)
1. The utility model provides a bore bloated combination formula broken rock's raise boring machine reaming blade disc, a serial communication port, which comprises a disc body, disk body top edge evenly distributed has the multiunit to inlay the tooth hobbing cutter, disk body top center is equipped with the pull rod, the inside chamber that holds that is equipped with of pull rod, pull rod lower part outer wall sliding connection has the edge a plurality of bloated pieces of pull rod circumference evenly distributed, bloated piece can be followed the pull rod radially slides extremely the pull rod is outside, it is equipped with and is used for the drive to hold the intracavity the gliding actuating mechanism of bloated piece, the disk body bottom is the fretwork form.
2. The apparatus of claim 1 wherein the expansion tool comprises: the number of each group of the inserted hob is two, the projection included angle of the horizontal plane of the axes of the two inserted hobs is 18 degrees, and the included angle points to the pull rod; one of the inserted hob cutters is close to the pull rod at the end with the larger diameter, and the other inserted hob cutter is close to the pull rod at the end with the smaller vertical drop.
3. The apparatus of claim 1 wherein the expansion tool comprises: the tray body comprises a base plate, a support, a supporting plate and a rib plate, wherein a plurality of hollowed-out areas are arranged on the base plate, the support is perpendicular to and fixedly connected with the base plate, the supporting plate is arranged at the top end of the support, the rib plate is fixedly connected with the support and the supporting plate respectively, and the inserted hob is arranged at the top of the supporting plate.
4. The reaming cutterhead of the borehole-expansion combined rock breaking raise as claimed in claim 1, wherein: the inserted hob is four groups, and the number of the expansion blocks is four.
5. A rock breaking method is characterized in that: the rock breaking method is realized on the basis of the reaming cutterhead of the drilling and expanding combined rock breaking raise boring machine as claimed in any one of claims 1 to 5, and the rock breaking method comprises the following steps:
(1) the drill rod penetrates into the bottom of the shaft along the guide hole, and a reaming cutter head of the drilling and expanding combined type rock breaking raise boring machine is installed;
(2) the ground host machine provides torque and tension for the drill rod, the inserted hob rotates after contacting with the rock, the rock is broken through rolling, and a hole expanding cutter head of the drilling and expanding combined type rock breaking raise upwards for one stroke;
(3) the drill rod stops rotating and pulling, a driving mechanism in the pull rod is started to drive the expansion block to move to the outside of the pull rod to crack and break the rock, and the broken rock falls off through the hollow part at the bottom of the tray body;
(4) after the expansion block is controlled to shrink by a driving mechanism in the pull rod, the work is stopped;
(5) and (5) repeating the steps (2) to (4) and starting the next stroke operation until the hole expanding cutter head of the reverse well drilling machine for drilling and expanding the combined rock breaking drills out of the ground.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210416366.1A CN114776223A (en) | 2022-04-20 | 2022-04-20 | Drilling and expansion combined type rock breaking hole-expanding cutter head of raise boring machine and rock breaking method |
| BE20225592A BE1030464B1 (en) | 2022-04-20 | 2022-07-26 | BORING CUTTING HEAD OF A JACK DRILL AND METHOD FOR STONE FRAGMENTATION WITH A COMBINATION OF DRILLING AND EXPANSION CRACKING |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210416366.1A CN114776223A (en) | 2022-04-20 | 2022-04-20 | Drilling and expansion combined type rock breaking hole-expanding cutter head of raise boring machine and rock breaking method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114776223A true CN114776223A (en) | 2022-07-22 |
Family
ID=82430296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210416366.1A Withdrawn CN114776223A (en) | 2022-04-20 | 2022-04-20 | Drilling and expansion combined type rock breaking hole-expanding cutter head of raise boring machine and rock breaking method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114776223A (en) |
| BE (1) | BE1030464B1 (en) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4076087A (en) * | 1976-06-14 | 1978-02-28 | Vladimir Yakovlevich Chuply | Hole reamer |
| SE8004039L (en) * | 1980-05-30 | 1981-12-01 | Sandvik Ab | DRILL SET AND DEVICE |
| US5325932A (en) * | 1992-03-27 | 1994-07-05 | The Robbins Company | Down reaming apparatus |
| EP2486219B1 (en) * | 2009-10-06 | 2014-04-02 | Baker Hughes Incorporated | Hole opener with hybrid reaming section |
| EP2486216A2 (en) * | 2009-10-06 | 2012-08-15 | Baker Hughes Incorporated | Hole opener with hybrid reaming section |
| US8347989B2 (en) * | 2009-10-06 | 2013-01-08 | Baker Hughes Incorporated | Hole opener with hybrid reaming section and method of making |
| US8448724B2 (en) * | 2009-10-06 | 2013-05-28 | Baker Hughes Incorporated | Hole opener with hybrid reaming section |
| EP2486218B1 (en) * | 2009-10-06 | 2018-01-31 | Baker Hughes, a GE company, LLC | Hole opener with hybrid reaming section |
| DE102013013477A1 (en) * | 2013-08-15 | 2015-03-12 | Herrenknecht Ag | Drilling head for expanding a pilot hole to create a borehole |
-
2022
- 2022-04-20 CN CN202210416366.1A patent/CN114776223A/en not_active Withdrawn
- 2022-07-26 BE BE20225592A patent/BE1030464B1/en active IP Right Grant
Also Published As
| Publication number | Publication date |
|---|---|
| BE1030464A1 (en) | 2023-11-17 |
| BE1030464B1 (en) | 2023-11-20 |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20220722 |