CN107939295B - Hydraulic integrated drill carriage of rock drilling machine - Google Patents
Hydraulic integrated drill carriage of rock drilling machine Download PDFInfo
- Publication number
- CN107939295B CN107939295B CN201711496726.9A CN201711496726A CN107939295B CN 107939295 B CN107939295 B CN 107939295B CN 201711496726 A CN201711496726 A CN 201711496726A CN 107939295 B CN107939295 B CN 107939295B
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- CN
- China
- Prior art keywords
- pipe
- drill
- section
- drill bit
- chip removal
- 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.)
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- 239000011435 rock Substances 0.000 title claims abstract description 39
- 238000005553 drilling Methods 0.000 title claims abstract description 36
- 238000005520 cutting process Methods 0.000 claims abstract description 45
- 230000005540 biological transmission Effects 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 230000033001 locomotion Effects 0.000 claims description 4
- 238000005065 mining Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 230000005641 tunneling Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
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
- E21B10/00—Drill bits
- E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
- E21B10/43—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits characterised by the arrangement of teeth or other cutting elements
-
- 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
- E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
- E21B10/602—Drill bits characterised by conduits or nozzles for drilling fluids the bit being a rotary drag type bit with blades
-
- 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
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/16—Plural down-hole drives, e.g. for combined percussion and rotary drilling; Drives for multi-bit drilling units
-
- 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
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)
Abstract
The invention discloses a rock drilling mechanical and hydraulic integrated drill carriage, which comprises a drill bit part, wherein the drill bit part comprises a drill pipe and an impact part positioned in the drill pipe; the drill pipe sequentially comprises a drill handle section, a chip removal section and a drill bit section, wherein the diameter of the drill bit section is not smaller than that of the chip removal section; the pipe wall end surface of the contact end of the drill bit section and the rock stratum is provided with a plurality of V-shaped cutting edges, the cutting edges are convexly arranged on the pipe wall end surface, all the cutting edges are in a circular array by taking points on the drill pipe axis as circle centers, and sharp corners of the cutting edges are arranged along the rotation direction of the drill pipe; the outer wall of the pipe body of the chip removal section is conical, the large end of the pipe body is connected with one end of the drill bit section, which is away from the cutting edge, and a spiral chip removal groove is formed in the outer wall of the pipe body of the chip removal section along the length direction of the pipe body; the invention greatly improves the drilling efficiency.
Description
Technical Field
The invention belongs to the technical field of rock drilling rigs, and particularly relates to an efficient hydraulic control rock drilling mechanical hydraulic integrated rig.
Background
Tunneling and ore mining of hard rock mainly adopts a rock drilling blasting method in the past; because the method has small energy consumption and low cost. However, the rock drilling is a heavy production link, and the artificial or gas leg rock drill is used for rock drilling, so that the labor intensity is high, the work efficiency is low, the operation condition is poor, and the increasing industrial production requirements cannot be met. Realizing the mechanization of rock drilling and the automation of the production process, and being a struggle target for mine workers.
With the continuous expansion of the scale of mining engineering and the development of mining machinery manufacturing industry, the newly developed hydraulic integrated drilling carriage of the rock drilling machinery gradually becomes the main equipment of mechanized rock drilling. The advantages are that: the tunneling speed and the mining efficiency can be improved to a certain extent, the labor intensity of workers is reduced, and the operation conditions are improved. The wide application of various rock drilling machinery hydraulic integrated drill carts marks the improvement of the mining mechanization degree. The drilling machine hydraulic integrated drill carriage is also called a drill carriage, and is called a drill carriage or a drill carriage for short. The machine capable of supporting the rock drilling machine to drill rock drilling holes and walking by means of various power consists of automatic propeller, drilling arm and its amplitude modulation mechanism, drilling frame, walking mechanism, etc. The mining drill carriage, the open-air drill carriage, the tunneling drill carriage, the anchor rod drill carriage, the underwater drill carriage, the general drill carriage and the combined drill carriage are divided into three types of crawler type, tire type and rail wheel type according to the running gear, and the mining drill carriage, the open-air drill carriage, the tunneling drill carriage, the anchor rod drill carriage, the underwater drill carriage, the general drill carriage and the combined drill carriage can be self-propelled or traction type. The hydraulic pressure is slightly simplified due to a mechanical mechanism, is not heavy and is more used in engineering.
The existing rock drilling mechanical hydraulic integrated drill carriage usually adopts a common drill bit to drill holes, and as part of the drill bit has higher rock hardness, once the drill carriage encounters a hard rock layer, the drill bit loses the function, does not drill before, or is advanced abnormally slowly, so that the drilling efficiency is greatly reduced, the limitation of the drill bit is larger, and the drill bit still needs to be further improved.
Disclosure of Invention
The invention aims to provide a hydraulic integrated drilling carriage for a rock drilling machine, which effectively solves the technical problems that the existing hydraulic integrated drilling carriage for the rock drilling machine is low in drilling efficiency and hard rock layers are difficult to normally push.
The technical scheme of the invention is as follows:
A rock drilling machine hydraulic integrated drill carriage, comprising a drill bit component comprising a drill pipe and an impact component located within the drill pipe;
The drill pipe sequentially comprises a drill handle section, a chip removal section and a drill bit section, wherein the diameter of the drill bit section is not smaller than that of the chip removal section; the pipe wall end surface of the contact end of the drill bit section and the rock stratum is provided with a plurality of V-shaped cutting edges, the cutting edges are convexly arranged on the pipe wall end surface, all the cutting edges are in a circular array by taking points on the drill pipe axis as circle centers, and sharp corners of the cutting edges are arranged along the rotation direction of the drill pipe; the outer wall of the pipe body of the chip removal section is conical, the large end of the pipe body is connected with one end of the drill bit section, which is away from the cutting edge, and a spiral chip removal groove is formed in the outer wall of the pipe body of the chip removal section along the length direction of the pipe body;
The impact part comprises a hydraulic pipe, a hydraulic joint, an impact rod and a cylindrical spring; the pipe hole of the hydraulic pipe is a stepped hole formed by two round holes with different sizes; the impact rod is a stepped shaft formed by two sections of cylinders with different sizes, wherein the free end of the smaller cylinder is conical, and a piston is fixed on the free end of the larger cylinder; the larger cylinder is positioned in the larger round hole of the stepped hole, the piston can do reciprocating motion in the larger round hole, the free end of the smaller cylinder extends out of the smaller round hole of the stepped shaft, and the cylindrical spring sleeved on the smaller cylinder is arranged between the larger cylinder and the step of the stepped hole; the hydraulic joint is fixed at the orifice of the larger round hole;
the hydraulic pipe is fixedly embedded into the drill pipe, and one end of the smaller cylinder extending out of the smaller round hole and the drill bit section are positioned at the same end.
Further, two ends of the cylindrical spring are respectively provided with a flat pad made of hard alloy, and the two flat pads are respectively and tightly attached to the step surface of the stepped hole and the step surface of the stepped shaft.
Further, the cross section of the chip removal groove is semicircular.
Further, the cone angle of the junk slots is 5.6 degrees.
Further, the diameter of the joint of the drill bit section and the chip removal section is the same.
Further, 4 grooves are formed in the conical surface of the free end of the smaller cylinder along the direction of the generatrix of the conical surface, the cross section of each groove is V-shaped, and the four grooves are in a circular array by taking points on the axis of the conical surface as circle centers.
Further, a drive gear is fixed to the free end of the drill shank segment.
Further, the cross section of the sharp angle of the cutting edge at the angular bisection surface of the V-shaped structure of the cutting edge is a right triangle, and two right-angle sides of the right triangle are respectively positioned on the pipe wall end face of the drill pipe and perpendicular to the pipe wall end face.
The invention has the beneficial effects that: according to the invention, the rock stratum is cut by adopting the cutting edges which are in a V shape and are circularly arranged, and because the sharp angles of the cutting edges are arranged along the rotary cutting direction of the drill pipe, the cutting efficiency is extremely high, the cutting edges are relatively good in structural stability, and are not easy to collapse, meanwhile, on the basis of the structural design, an impact part is additionally arranged, and the impact part is used for impacting the rock stratum at the cutting position by utilizing an impact rod in the hydraulic drive hydraulic pipe, so that on one hand, the cutting edges are assisted to cut, the stable structure of the rock stratum is destroyed, the cutting edges around the rock stratum are enabled to cut more rapidly and conveniently, on the other hand, the hard rock stratum can be impacted at high strength when encountering the hard rock stratum, so that the cutting edges can be crushed rapidly and normally, meanwhile, the section is arranged at the joint of the drill bit section, and the diameter of the chip removing section is not more than that of the drill section, chips generated by drilling and impact are rapidly removed through spiral grooves at the first time, and the drilling efficiency is improved again.
Therefore, the invention greatly improves the drilling efficiency, has obvious promotion effect on the drilling propulsion of the hard rock layer and has extremely strong adaptability.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention.
Fig. 2 is a schematic end view of a drill bit segment.
Fig. 3 is a schematic cross-sectional view of the conical end of a smaller cylinder.
Fig. 4 is a schematic cross-sectional view of a cutting edge.
Fig. 5 is a front view of the cutting edge shown in fig. 4.
Fig. 6 is a top view of the cutting edge shown in fig. 4.
Fig. 7 is another schematic cross-sectional view of a cutting edge.
Description of element numbers: the drill bit comprises a hydraulic joint 1, a drill pipe 2, a hydraulic pipe 3, a striking rod 4, a cylindrical spring 5, a flat pad 6, a piston 7, a transmission gear 8, a drill bit section 201, a chip removing section 202, a drill shank section 203, a chip removing groove 204, a larger cylinder 401, a smaller cylinder 402, a cutting edge 2011 and a groove 4021.
Detailed Description
Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present invention, which is described by the following specific examples.
The invention is further illustrated by the following examples in connection with figures 1-7:
As shown in fig. 1-3, a rock drilling machine hydraulic integrated drill rig comprises a drill bit assembly comprising a drill pipe 2 and an impact member located within the drill pipe 2.
The drill pipe 2 sequentially comprises a drill shank section 203, a chip removing section 202 and a drill bit section 201, wherein the diameter of the drill bit section 201 is not smaller than that of the chip removing section 202; a plurality of V-shaped cutting edges 2011 are arranged on the pipe wall end surface of the contact end of the drill bit section 201 and the rock stratum, the cutting edges 2011 are convexly arranged on the pipe wall end surface, all the cutting edges 2011 are in a circular array with points on the axis of the drill pipe 2 as circle centers, and sharp corners of the cutting edges 2011 are arranged along the rotation direction of the drill pipe 2; the outer wall of the pipe body of the chip removing section 202 is conical, the large end of the pipe body is connected with one end of the drill bit section 201, which is away from the cutting edge 2011, and a spiral chip removing groove 204 is formed in the outer wall of the pipe body of the chip removing section 202 along the length direction of the pipe body.
The impact component comprises a hydraulic pipe 3, a hydraulic joint 1, an impact rod 4 and a cylindrical spring 5; the pipe hole of the hydraulic pipe 3 is a stepped hole formed by two round holes with different sizes; the striking rod 4 is a stepped shaft formed by two sections of cylinders with different sizes, wherein the free end of the smaller cylinder 402 is conical, and the free end of the larger cylinder 401 is fixed with a piston 7; the larger cylinder 401 is positioned in the larger round hole of the stepped hole, the piston 7 can do reciprocating motion in the larger round hole, the free end of the smaller cylinder 402 extends out of the smaller round hole of the stepped shaft, and the cylindrical spring 5 sleeved on the smaller cylinder 402 is arranged between the larger cylinder 401 and the step of the stepped hole; the hydraulic joint 1 is fixed at the orifice of the larger round hole.
The hydraulic pipe 3 is fixedly embedded in the drill pipe 2, and one end of the smaller cylinder 402 extending out of the smaller round hole is positioned at the same end as the drill bit section 201.
Further, two ends of the cylindrical spring 5 are respectively provided with a flat pad 6 made of hard alloy, the two flat pads 6 are respectively clung to the step surface of the stepped hole and the step surface of the stepped shaft, the flat pad 6 made of hard alloy can be better contacted with the cylindrical spring 5 and has wear resistance, and the movement performance of the impact rod 4 serving as a piston rod is improved.
Further, the junk slots 204 have a semicircular cross section, so as to better remove drill cuttings and improve usability.
Further, the taper angle of the junk slot 204 is 5.6 degrees, and the junk slot 201 has better junk effect under the taper angle.
Further, the diameter of the junction of the drill bit section 201 and the chip removal section 202 is the same, so that the drill cuttings are smoothly transferred to the chip removal section 202, and chip removal is smoother.
Further, 4 grooves 4021 are formed in the conical surface of the free end of the smaller cylinder 402 along the direction of the generatrix of the conical surface, the cross section of each groove 4021 is in a V shape, the included angle A is preferably 30 degrees, the four grooves 4021 are in a circular array by taking points on the axis of the conical surface as circle centers, and after the grooves 4021 are arranged, the impact rod 4 impacts rock strata to achieve better crushing effect.
Further, a transmission gear 8 is fixed at the free end of the drill shank segment 203 so as to facilitate connection transmission with external power equipment through gear engagement transmission.
Further, as shown in fig. 4-7; the sharp angle of cutting edge 2011 is in the cross-section of cutting edge 2011V type structure's angle bisection face department and is right triangle-shaped (shown in fig. 4), and this right triangle-shaped's two right-angle sides are located on the pipe wall terminal surface of drill pipe 2 and perpendicular to pipe wall terminal surface respectively, and the cutting edge of this design is sharper, can promote the cutting efficiency of cutting edge. And a plurality of right-angle bulges can be arranged at the right-angle bevel edge to improve the structural strength and prevent tipping.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (4)
1. A hydraulic integrated drill carriage for a rock drilling machine, comprising a drill bit component, characterized in that the drill bit component comprises a drill pipe and an impact component positioned in the drill pipe;
The drill pipe sequentially comprises a drill handle section, a chip removal section and a drill bit section, wherein the diameter of the drill bit section is not smaller than that of the chip removal section; the pipe wall end surface of the contact end of the drill bit section and the rock stratum is provided with a plurality of V-shaped cutting edges, the cutting edges are convexly arranged on the pipe wall end surface, all the cutting edges are in a circular array by taking points on the drill pipe axis as circle centers, and sharp corners of the cutting edges are arranged along the rotation direction of the drill pipe; the outer wall of the pipe body of the chip removal section is conical, the large end of the pipe body is connected with one end of the drill bit section, which is away from the cutting edge, and a spiral chip removal groove is formed in the outer wall of the pipe body of the chip removal section along the length direction of the pipe body;
The impact part comprises a hydraulic pipe, a hydraulic joint, an impact rod and a cylindrical spring; the pipe hole of the hydraulic pipe is a stepped hole formed by two round holes with different sizes; the impact rod is a stepped shaft formed by two sections of cylinders with different sizes, wherein the free end of the smaller cylinder is conical, and a piston is fixed on the free end of the larger cylinder; the larger cylinder is positioned in the larger round hole of the stepped hole, the piston can do reciprocating motion in the larger round hole, the free end of the smaller cylinder extends out of the smaller round hole of the stepped shaft, and the cylindrical spring sleeved on the smaller cylinder is arranged between the larger cylinder and the step of the stepped hole; the hydraulic joint is fixed at the orifice of the larger round hole;
The hydraulic pipe is fixedly embedded into the drill pipe, and one end of the smaller cylinder extending out of the smaller round hole and the drill bit section are positioned at the same end;
Two ends of the cylindrical spring are respectively provided with a flat pad made of hard alloy, and the two flat pads are respectively and tightly attached to the step surface of the stepped hole and the step surface of the stepped shaft;
The conical surface of the free end of the smaller cylinder is provided with 4 grooves along the generatrix direction of the conical surface, the cross section of each groove is V-shaped, and the four grooves are in a circular array by taking a point on the axis of the conical surface as a circle center;
The free end of the drill handle section is fixed with a transmission gear;
The sharp angle of the cutting edge is a right triangle in the cross section of the angle bisector of the V-shaped cutting edge structure, and the two right-angle sides of the right triangle are respectively positioned on the pipe wall end face of the drill pipe and perpendicular to the pipe wall end face.
2. The integrated hydraulic rock drilling rig of claim 1, wherein the junk slots are semi-circular in cross-section.
3. The integrated hydraulic rock drilling rig of claim 2, wherein the chip flute has a cone angle of 5.6 degrees.
4. The integrated drilling rig of claim 2, wherein the drill bit section and the chip removal section meet at the same diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711496726.9A CN107939295B (en) | 2017-12-31 | 2017-12-31 | Hydraulic integrated drill carriage of rock drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711496726.9A CN107939295B (en) | 2017-12-31 | 2017-12-31 | Hydraulic integrated drill carriage of rock drilling machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107939295A CN107939295A (en) | 2018-04-20 |
| CN107939295B true CN107939295B (en) | 2024-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711496726.9A Active CN107939295B (en) | 2017-12-31 | 2017-12-31 | Hydraulic integrated drill carriage of rock drilling machine |
Country Status (1)
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| CN (1) | CN107939295B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113006718A (en) * | 2021-01-26 | 2021-06-22 | 成英 | Engineering drilling and production integrated working line |
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|---|---|---|---|---|
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