CN111622676A - Rock-entering drill bit of rotary drilling rig and rotary drilling rig - Google Patents
Rock-entering drill bit of rotary drilling rig and rotary drilling rig Download PDFInfo
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- CN111622676A CN111622676A CN202010540748.6A CN202010540748A CN111622676A CN 111622676 A CN111622676 A CN 111622676A CN 202010540748 A CN202010540748 A CN 202010540748A CN 111622676 A CN111622676 A CN 111622676A
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- 238000005553 drilling Methods 0.000 title claims abstract description 74
- 239000011435 rock Substances 0.000 claims abstract description 57
- 230000036346 tooth eruption Effects 0.000 claims abstract description 5
- 238000010276 construction Methods 0.000 abstract description 10
- 238000005096 rolling process Methods 0.000 abstract description 4
- 238000001125 extrusion Methods 0.000 abstract description 3
- 239000013049 sediment Substances 0.000 abstract 1
- 239000002893 slag Substances 0.000 description 7
- 239000004576 sand Substances 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 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
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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
- E21B10/42—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
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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
- E21B10/12—Roller bits with discs cutters
-
- 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
- E21B3/00—Rotary drilling
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to the technical field of rotary drilling rigs, in particular to a rock-entering drill bit of a rotary drilling rig and the rotary drilling rig. The rock-entering drill bit of the rotary drilling rig provided by the invention comprises a drill barrel, a cutter and an annular cutter disc, wherein the annular cutter disc is provided with a hob, a bucket tooth and a drill cutter, when hard rock is drilled, the hob firstly contacts with the rock, the hob shaft can bear larger radial pressure, the hob can generate larger pressure on a rock stratum after the radial pressure is applied, and the rock can generate cracks when being pressed by the hob, so that pre-crushing is realized. The roller cone or the cutting pick continues to follow up again, and grinding, knocking and crushing are carried out on the rock stratum. Because the rolling of the hob cutter generates cracks, the cutting teeth or the cone cutter can easily enter rock stratum gaps, and the rock stratum is crushed by extrusion. The bucket tooth is followed up and is mainly prevented that the piece that produces after gear wheel and the cutting pick cutting from causing the secondary grinding of boring the sediment, compares with current single drill bit, and the drill bit that this application provided can be applicable to the rock stratum construction of different geology, and application scope is wider, and it is higher to go into rock efficiency.
Description
Technical Field
The invention relates to the technical field of rotary drilling rigs, in particular to a rock-entering drill bit of a rotary drilling rig and the rotary drilling rig.
Background
The rotary drilling rig is a construction machine for hole forming operation, and the principle of the rotary drilling rig is that a drill rod is driven by a power head to realize that a drilling tool rotates to cut rock soil, then the drilling tool is lifted to the outside of a hole to unload soil, and the drilling tool is periodically operated in a circulating mode until holes are formed; at present, most of rotary drilling drills adopt a single drill bit stone breaking mode to drill, and commonly used drill bits comprise a bucket tooth drill bit, a cutting pick drill bit and a roller bit.
The construction of a softer stratum is carried out, the full-section cutting is carried out by adopting the double-bottom sand bailing bucket tooth drill bit, and the full-section cutting drilling efficiency of the softer stratum is high.
And constructing the pebble stratum, and cutting the full section by adopting a double-bottom sand bailing bucket pick bit. When the boulder is constructed, a cutting tooth barrel drill is used for cutting in an annular mode, a cutting tooth is submerged and extruded to crush the boulder, a double-bottom sand bailing bucket cutting tooth drill is used for fishing out central drilling slag, and finally full-section cutting is achieved. The main working principle of the cutting pick is the submerged extrusion crushing.
The rock construction is that a roller bit is adopted to carry out annular cutting on a rock stratum, the rotation of a revolution roller of the bit grinds, knocks and crushes the rock stratum, a drill core is taken out after the annular cutting is finished, if the drill core cannot be taken out, a double-bottom sand bailing bucket cutting bit is adopted to carry out full-section cutting on the drill core, and drill slag is taken out.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the drill bit of the existing rotary drilling rig adopts a single cutter; when in rock stratum construction, the annular cutting footage speed is slow, and the construction efficiency is low.
(II) technical scheme
In order to solve the technical problem, the embodiment of the invention provides a rock-entering drill bit of a rotary drilling rig, which comprises a drill cylinder, an annular cutter head and a cutter; the drilling barrel is of a cylindrical structure, a hollow cavity is formed in the drilling barrel, an end cover is arranged at one end of the drilling barrel, a connecting part is arranged on the end cover, the other end of the drilling barrel is of an opening structure, and the annular cutter head is arranged at the opening end of the drilling barrel; the cutter is arranged on the annular cutter head; the cutter comprises a hob, a bucket tooth and a drill bit, the drill bit is a cutting tooth and/or a cone, and the height of the hob is greater than that of the drill bit and that of the bucket tooth
According to one embodiment of the invention, at least one hob and at least one bucket tooth are arranged on the annular cutterhead; and a cutter rest is arranged on the annular cutter head, and the hob is arranged in the cutter rest.
According to one embodiment of the invention, the drill bit is at least one cone disposed on the annular cutter head.
According to one embodiment of the invention, a plurality of hobbing cutters, a plurality of bucket teeth and a plurality of roller cones are arranged on the annular cutter head; the plurality of hobbing cutters, the plurality of bucket teeth and the plurality of the gear cutters are arranged on the annular cutter disc at intervals and are uniformly distributed; the diameter of the cutting track of the roller cone is larger than the outer diameter of the rotating track of the tool holder.
According to one embodiment of the invention, the drill bit is at least one cutting pick provided on the annular cutter head.
According to one embodiment of the invention, a plurality of hobbing cutters, a plurality of bucket teeth and a plurality of cutting picks are arranged on the annular cutter head; the plurality of the hobs, the plurality of the bucket teeth and the plurality of the cutting picks are distributed on the annular cutter head at intervals and uniformly; the diameter of the cutting trace of the cutting pick is larger than the outer diameter of the rotation trace of the tool rest.
According to one embodiment of the invention, the drill bit includes at least one cone and at least one pick provided on the annular cutter head.
According to one embodiment of the invention, a plurality of hobbing cutters, a plurality of bucket teeth, a plurality of roller cones and a plurality of cutting picks are arranged on the annular cutter head; the plurality of the hobbing cutters, the plurality of bucket teeth, the plurality of the gear cutters and the plurality of cutting picks are distributed on the annular cutter head at intervals and uniformly; the diameters of the cone cutting track and the pick cutting track are larger than the outer diameter of the tool rest rotating track.
According to one embodiment of the invention, the outer wall of the drill barrel is provided with a spiral sheet.
The invention further provides a rotary drilling rig, which comprises the rock-entering drill bit of the rotary drilling rig in any embodiment.
The invention has the beneficial effects that: the rock-entering drill bit of the rotary drilling rig provided by the embodiment of the invention comprises an annular cutter disc and a cutter, wherein the annular cutter disc is provided with a hob, a bucket tooth and a drill bit, and the drill bit is one or two of a cone and a cutting tooth; when hard rock drilling operation is performed, the hob firstly contacts with rock, and the hob shaft can bear large radial pressure, so that the rock is radially pre-crushed, the hob can generate large pressure on a rock stratum after the radial pressure is applied, the rock can generate cracks after the rock is subjected to pressure grinding by the hob, and pre-crushing is achieved. The roller cone or the cutting tooth continues to follow, and grinding, knocking and crushing are carried out on the rock stratum through revolution of the drill bit and rotation of the roller cone or the cutting tooth. Because the rolling of the hob cutter generates cracks, the cone or the cutting tooth can easily enter rock stratum gaps, and the rock stratum is crushed by extrusion. The bucket tooth follow-up mainly prevents the secondary grinding of drilling slag caused by chips generated after the cutting of the gear wheel and the cutting tooth, the bucket tooth needs to remove the cutting chips in the ring groove, and the chips are discharged through the spiral sheet on the wall of the barrel; compare with current single drill bit, the drill bit that this application provided can be applicable to the rock stratum construction of different geologies, and application scope is wider, and it is higher to go into the rock efficiency.
Drawings
The advantages of the above and/or additional aspects of the present invention will become apparent and readily appreciated from the following description of the embodiments taken in conjunction with the accompanying drawings of which:
FIG. 1 is a perspective view of a rock-entering drill bit of the rotary drilling rig according to the first embodiment of the invention;
FIG. 2 is a bottom view of the rock-entering drill bit of the rotary drilling rig according to the first embodiment of the invention;
FIG. 3 is a side view of the rock-entering drill bit of the rotary drilling rig according to the first embodiment of the invention;
FIG. 4 is a perspective view of a rock-entering drill bit of the rotary drilling rig according to the second embodiment of the invention;
FIG. 5 is a bottom view of a rock-entering drill bit of the rotary drilling rig according to the second embodiment of the invention;
FIG. 6 is a side view of the rock-entering drill bit of the rotary drilling rig according to the second embodiment of the invention
FIG. 7 is a perspective view of a rock-entering drill bit of the rotary drilling rig according to the third embodiment of the invention;
FIG. 8 is a bottom view of a rock-entering drill bit of the rotary drilling rig according to the third embodiment of the invention;
fig. 9 is a side view of the rock-entering drill bit of the rotary drilling rig according to the third embodiment of the invention.
Wherein the correspondence between the reference numbers and the names of the components in fig. 1 to 9 is:
1. the drill bit comprises a drill bit body 11, a drill barrel 111, a hob 112, a bucket tooth 113, a cutting pick 114, a cone, 115, spiral blades 116, end covers 117, a connecting part 118, a hollow cavity 12 and an annular cutter head.
Detailed Description
So that the manner in which the above recited objects, features and advantages of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to the embodiments thereof which are illustrated in the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
Example one
As shown in fig. 1 to 3, the embodiment provides a rock-entering drill bit 1 of a rotary drilling rig, which comprises a drill barrel 11, an annular cutter head 12 and a cutter; the drilling barrel 11 is of a cylindrical structure, a hollow cavity 118 is formed in the drilling barrel 11, an end cover 116 is arranged at one end of the drilling barrel 11, a connecting part 117 is arranged on the end cover 116, the end face of the annular cutter head 12 is annular, the annular cutter head 12 is connected to the other end of the drilling barrel 11, and the cutter is arranged on the annular cutter head 12; the cutter comprises a hob 111, an bucket tooth 112 and a drill bit which is a cutting pick 113 and/or a roller cone 114, wherein the height of the hob 111 is greater than the height of the drill bit and the height of the bucket tooth 112
The rock-entering drill bit 1 of the rotary drilling rig provided by the embodiment of the invention comprises a drill barrel 11, wherein the open end of the drill barrel 11 is provided with a hob 111, a bucket tooth 112 and a drill bit, and the drill bit is one or two of a cone 114 and a cutting tooth 113. When hard rock drilling operation is performed, the hob 111 firstly contacts with rock, and a shaft of the hob 111 can bear large radial pressure, so that the rock is radially pre-crushed, the hob 111 generates large pressure on a rock stratum after the radial pressure is applied, the rock stratum generates cracks after being subjected to pressure removal by the hob 111, and pre-crushing is achieved. The roller cone 114 continues to follow, and grinding, knocking and crushing are performed on the rock formation through revolution of the drill bit 1 and rotation of the roller cone 114. The following of the teeth 112 mainly prevents the secondary grinding of the drilling slag caused by the chips generated after the cutting of the roller cone 114 and the cutting pick 113, and the teeth 112 need to remove the cutting chips in the ring groove.
In this embodiment, the drill bit is a roller cone 114, that is, in this embodiment, the annular cutter disc 12 is provided with a roller cutter 111, an arm tooth 112 and a roller cone 114, wherein at least one of the roller cutter 111, the arm tooth 112 and the roller cone 114 is provided.
As shown in fig. 1 to 3, in the present embodiment, a plurality of the roller cutters 111, the bucket teeth 112, and the roller cone 114 are provided, and a plurality of the roller cutters 111, a plurality of the bucket teeth 112, and a plurality of the roller cones 114 are spaced and uniformly distributed on the annular cutter disc 12; the diameter of the cutting track of the cone 114 is greater than the outer diameter of the rotational track of the tool holder.
Preferably, as shown in fig. 1, in the present embodiment, four roller cutters 111 and six roller cutters 114 are disposed on the annular cutter disc 12, the roller cutters 114 are disposed in an inclined manner with respect to an end surface of the annular cutter disc 12, two roller cutters 114 with opposite inclination directions form a roller cutter 114 group, and two roller cutters 114 in the roller cutter 114 group are symmetrical with respect to an axis of the drill barrel 11; as shown in the figures, two of the bucket teeth 112 are provided, two of the bucket teeth 112 are symmetrically arranged about the axis of the drill barrel 11, and meanwhile, four of the roller cutters 111 are provided, two of the roller cutters 111 are oppositely arranged, and the central angle of each two adjacent roller cutters 111 is 90 °, that is, the four roller cutters 111 are spaced and uniformly distributed on the end surface of the annular cutter head 12, at this time, the end surface of the drill bit 1 is divided into four regions by the four roller cutters 111, the number of the roller cutters 114 is six, two of the regions are provided with two roller cutters 114, the other two regions are provided with one roller cutter 114 and one bucket tooth 112, the four roller cutter 114 sets are symmetrically arranged in pairs, and the two roller cutters 114 in the same roller cutter 114 set are inclined in opposite directions, wherein one of the two roller cutters is inclined in a forward direction, the other one of the two roller cutters is inclined in a reverse direction.
Of course, the number of the hob 111, the cone 114 and the bucket teeth 112 in this embodiment is not limited to the above-mentioned manner, for example, there is only one hob 111, cone 114 and bucket teeth 112, or there is only one hob 111, cone 114 and bucket teeth 112 and there are a plurality of other hobs, or there are only one hob 111, cone 114 and bucket teeth 112 and there are a plurality of other hobs, so long as three hobs, namely, the hob 111 and the cone 114 and the bucket teeth 112, can be provided on the annular cutter disc 12, the design concept of the present invention can be realized, and the present invention shall fall within the protection scope of the present invention.
When the pre-crushing device works, the hob 111 contacts with rocks firstly, and the shaft of the hob 111 can bear large radial pressure, so that the rocks are crushed in advance in the radial direction, the hob 111 generates large pressure on the rock strata after the radial pressure is applied, the rock strata can generate cracks after the rock strata are subjected to pressure expelling by the hob 111, and the pre-crushing is realized. The roller cone 114 continues to follow up again, and grinding, knocking and crushing are performed on the rock stratum through revolution of the drill bit 1 and rotation of the roller cone 114. The bucket teeth 112 follow up to mainly prevent the secondary grinding of drilling slag caused by chips generated after the cutting of the cone 114 and the cutting pick 113, and the bucket teeth 112 need to remove cutting chips in the ring grooves; according to the rotary drilling rig rock-entering drill bit 1 provided by the embodiment, the rock-entering efficiency can be increased, the abrasion of the drill bit 1 is reduced, the service life of the drill bit 1 is prolonged, and experiments show that the drill bit 1 provided by the embodiment can improve the construction efficiency by 1-2 times compared with the existing single drill bit 1.
As shown in the figures, the outer wall surface of the drill barrel 11 is provided with a spiral blade 115, and rock crushed by the hob 111 and the cone 114 is cleaned and deslagged by the bucket teeth 112.
As shown in fig. 1 and 3, an end cover 116 is arranged at one end of the drill cylinder 11, a connecting portion 117 is arranged on the end cover 116, the connecting portion 117 is used for being connected with a drill rod, the drill rod is connected with a power head, the power head drives the drill rod to rotate, the drill rod is connected with the connecting portion 117, the drill cylinder 11 is driven to rotate, and then the rock is cut and crushed by a cutter on the end face of the drill cylinder 11.
Example two
The present embodiment is substantially the same as the first embodiment in technical solution, and the main difference is that the drill includes a cutting pick 113, that is, in the present embodiment, the drill is the cutting pick 113, that is, in the present embodiment, the annular cutter head 12 is provided with a hob 111, an arm 112 and a cutting pick 113, where at least one of the hob 111, the arm 112 and the cutting pick 113 is provided.
As shown in fig. 4 to 6, a plurality of the hob 111, the bucket tooth 112 and the picks 113 are provided, and a plurality of the hob 111, the bucket tooth 112 and the picks 113 are spaced and uniformly distributed on the annular cutter head 12; the diameter of the cutting path of the pick 113 is greater than the outer diameter of the rotational path of the tool holder.
Preferably, as shown in fig. 4 to 6, the two bucket teeth 112 are provided, two bucket teeth 112 are symmetrically arranged about the axis of the drill barrel 11, that is, the six hob cutters 111 are provided, six hob cutters 111 are oppositely arranged in pairs, and the central angle of two adjacent hob cutters 111 is 60 °, that is, six hob cutters 111 are spaced and uniformly distributed on the end face of the annular cutter head 12, wherein the picks are present in pairs, and the two picks 113 in the same pick 113 group are inclined in opposite directions, one of the picks is inclined inwards, the other is inclined outwards, and the inclination directions of two adjacent picks 113 are also opposite.
Of course, the number of the hob cutters 111, the cutting picks 113 and the bucket teeth 112 in the present embodiment is not limited to the above-mentioned number, and the design idea of the present invention can be realized as long as three kinds of cutters, i.e., the hob cutters 111 and the cutting picks 113 and the bucket teeth 112, can be provided on the annular cutter head 12, and thus, the present invention should fall within the protection scope of the present invention.
When hard rock drilling operation is performed, the hob 111 firstly contacts with rock, and a shaft of the hob 111 can bear large radial pressure, so that the rock is radially pre-crushed, the hob 111 generates large pressure on a rock stratum after the radial pressure is applied, the rock stratum generates cracks after being subjected to pressure removal by the hob 111, and pre-crushing is achieved. Because cracks are generated by the rolling of the hob cutter 111, the cutting teeth 113 can easily enter gaps of rock strata, and crush the rock strata. The tooth 112 follows up to prevent the second grinding of the drilling slag caused by the chips generated after the cutting of the cutting pick 113, and the tooth 112 needs to remove the chips cut in the ring groove and discharge the chips through the spiral piece 115 on the wall of the ring. The novel rock-entering drill bit 1 of the rotary drilling rig provided by the embodiment can increase the rock-entering efficiency, reduce the abrasion of the drill bit 1 and prolong the service life of the drill bit 1, and experiments show that the drill bit 1 provided by the embodiment can improve the construction efficiency by 1-2 times compared with the existing single drill bit 1.
EXAMPLE III
The technical solution of this embodiment is substantially the same as that of the first embodiment, and the main difference is that the drill bit includes a cutting pick 113 and a roller cone 114, that is, in this embodiment, the annular cutter head 12 is provided with a hob 111, a tooth 112, a roller cone 114 and a cutting pick 113.
Alternatively, as shown in fig. 7 to 9, in this embodiment, a plurality of the roller cutters 111, the bucket teeth 112, the cutting picks 113, and the roller cone 114 are provided, and a plurality of the roller cutters 111, a plurality of the bucket teeth 112, the cutting picks 113, and the roller cone 114 are spaced and uniformly distributed on the annular cutter disc 12; the diameter of the cutting track of the cone 114 and the cutting track of the picks 113 is greater than the outer diameter of the rotational track of the tool holder.
Preferably, in the present embodiment, there are two bucket teeth 112, four hob cutters 111, eight cone cutters 114, and twelve cutting picks 113; as shown in fig. 7 to 9, the cutting picks 113 are arranged obliquely with respect to the end face of the annular cutter head 12, two cutting picks 113 with opposite inclination directions form a cutting pick 113 group, and two cutting picks 113 in the cutting pick 113 group are symmetrical with respect to the axis of the drill barrel 11; the roller cones 114 are obliquely arranged relative to the end surface of the annular cutter disc 12, two roller cones 114 with opposite inclination directions form a roller cone 114 group, and the two roller cones 114 in the roller cone 114 group are symmetrical relative to the axis of the drill barrel 11; as shown in fig. 7 to 9, the teeth 112 are provided in two, two teeth 112 are provided symmetrically with respect to the axis of the drill barrel 11, meanwhile, four hob cutters 111 are arranged, every two of the four hob cutters 111 are arranged oppositely, the central angle of each two adjacent hob cutters 111 is 90 degrees, namely, the four roller cutters 111 are spaced and uniformly distributed on the end surface of the annular cutter head 12, and then the end surface of the drill bit 1 is divided into four regions by the four roller cutters 111, and the number of the cones 114 is eight, the number of the picks 113 is twelve, the end surface of the annular cutter head 12 is divided into four regions by the roller cutters 111, each area is provided with two cones 114 and three picks 113, the four pairs of cone 114 groups are arranged in pairwise symmetry, the two cones 114 in the same cone 114 group have opposite inclination directions, one of which is inwardly inclined and the other of which is outwardly inclined, the directions of inclination between adjacent cones 114 being opposite; the six pairs of cutting picks 113 are symmetrically arranged pairwise, the two cutting picks 113 in the same cutting pick 113 group are inclined in opposite directions, one cutting pick 113 is inclined inwards, the other cutting pick 113 is inclined outwards, and the inclination directions of the two adjacent cutting picks 113 are opposite.
It should be noted that, in the present embodiment, the bucket teeth 112, the hob 111, the pick 113 and the cone 114 are not limited to the above numbers, and the design concept of the present invention can be implemented as long as the bucket teeth 112, the hob 111, the pick 113 and the cone 114 are provided on the annular cutter head 12 as described above, and the present invention shall fall within the protection scope of the present invention.
When hard rock drilling operation is performed, the hob 111 firstly contacts with rock, and a shaft of the hob 111 can bear large radial pressure, so that the rock is radially pre-crushed, the hob 111 generates large pressure on a rock stratum after the radial pressure is applied, the rock stratum is subjected to pressure removal by the hob 111 to generate cracks, and pre-crushing is achieved. The roller cone 114 continues to follow, and grinding, knocking and crushing are performed on the rock formation through revolution of the drill bit 1 and rotation of the roller cone 114. Because cracks are generated by the rolling of the hob cutter 111, the cutting teeth 113 can easily enter gaps of rock strata, and crush the rock strata. The bucket teeth 112 follow up to mainly prevent the secondary grinding of drilling slag caused by chips generated after the cutting of the cone 114 and the cutting pick 113, and the bucket teeth 112 need to remove the cutting chips in the ring grooves and discharge the chips through the spiral sheets 115 on the wall of the barrel; compare with current single drill bit 1, the drill bit 1 that this application provided can be applicable to the rock stratum construction of different geology, and application scope is wider, and it is higher to go into rock efficiency.
Example four
The embodiment provides a rotary drilling rig using the rotary drilling rig rock-entering drill bit 1 of the first embodiment, the second embodiment or the third embodiment, the rotary drilling rig provided by the embodiment can be suitable for various working environments such as soft strata and hard strata, the drilling efficiency is high, the rock-entering coring efficiency is high, meanwhile, the service life of the drill bit 1 can be prolonged, and the pump is saved.
In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the communication may be direct, indirect via an intermediate medium, or internal to both elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides a dig rig soon and go into rock drill bit which characterized in that: comprises a drill cylinder, an annular cutter head and a cutter;
the drilling barrel is of a cylindrical structure, a hollow cavity is formed in the drilling barrel, an end cover is arranged at one end of the drilling barrel, a connecting part is arranged on the end cover, the other end of the drilling barrel is of an opening structure, and the annular cutter head is arranged at the opening end of the drilling barrel; the cutter is arranged on the annular cutter head;
the cutter comprises a hob, a bucket tooth and a drill bit, the drill bit is a cutting tooth and/or a cone, and the height of the hob is greater than that of the drill bit and that of the bucket tooth.
2. The rotary drilling rig rock-entering drill bit according to claim 1, characterized in that: at least one hob and at least one bucket tooth are arranged on the annular cutterhead; and a cutter rest is arranged on the annular cutter head, and the hob is arranged in the cutter rest.
3. The rotary drilling rig rock-entering drill bit according to claim 2, characterized in that: the drill bit is at least one cone arranged on the annular cutter head.
4. The rotary drilling rig rock-entering drill bit according to claim 3, characterized in that: a plurality of hobbing cutters, a plurality of bucket teeth and a plurality of gear wheels are arranged on the annular cutter head; the plurality of hobbing cutters, the plurality of bucket teeth and the plurality of the gear cutters are arranged on the annular cutter disc at intervals and are uniformly distributed; the diameter of the cutting track of the roller cone is larger than the outer diameter of the rotating track of the tool holder.
5. The rotary drilling rig rock-entering drill bit according to claim 2, characterized in that: the drill bit is at least one cutting tooth arranged on the annular cutter head.
6. The rotary drilling rig rock-entering drill bit according to claim 5, characterized in that: a plurality of hobs, a plurality of bucket teeth and a plurality of cutting teeth are arranged on the annular cutter head; the plurality of the hobs, the plurality of the bucket teeth and the plurality of the cutting picks are distributed on the annular cutter head at intervals and uniformly; the diameter of the cutting trace of the cutting pick is larger than the outer diameter of the rotation trace of the tool rest.
7. The rotary drilling rig rock-entering drill bit according to claim 2, characterized in that: the drill bit comprises at least one cone and at least one cutting pick arranged on the annular cutter head.
8. The rotary drilling rig rock-entering drill bit according to claim 7, characterized in that: the annular cutter head is provided with a plurality of hobs, a plurality of bucket teeth, a plurality of cones and a plurality of cutting teeth; the plurality of the hobbing cutters, the plurality of bucket teeth, the plurality of the gear cutters and the plurality of cutting picks are distributed on the annular cutter head at intervals and uniformly; the diameters of the cone cutting track and the pick cutting track are larger than the outer diameter of the tool rest rotating track.
9. The rotary drilling rig rock-entering drill bit according to claim 1, characterized in that: and the outer wall of the drill cylinder is provided with a spiral sheet.
10. A rotary drilling rig is characterized in that: the rock-entering drill bit of the rotary drilling rig according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010540748.6A CN111622676A (en) | 2020-06-15 | 2020-06-15 | Rock-entering drill bit of rotary drilling rig and rotary drilling rig |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010540748.6A CN111622676A (en) | 2020-06-15 | 2020-06-15 | Rock-entering drill bit of rotary drilling rig and rotary drilling rig |
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| CN111622676A true CN111622676A (en) | 2020-09-04 |
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| CN202010540748.6A Pending CN111622676A (en) | 2020-06-15 | 2020-06-15 | Rock-entering drill bit of rotary drilling rig and rotary drilling rig |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112267822A (en) * | 2020-11-26 | 2021-01-26 | 西南石油大学 | Continuous drilling chip removal pouring integrated piling tool capable of preventing hole collapse |
| CN112282658A (en) * | 2020-11-26 | 2021-01-29 | 西南石油大学 | Continuous drilling and circulating pouring integrated piling tool |
| CN112483006A (en) * | 2020-12-08 | 2021-03-12 | 中国矿业大学 | Rock threaded hole drilling bit of rotary drilling rig and using method and application thereof |
| CN115162446A (en) * | 2022-07-29 | 2022-10-11 | 广州筑金基础工程机械技术有限责任公司 | Hobbing cutter and gear wheel composite cutter head for groove milling machine |
| CN115263195A (en) * | 2022-09-28 | 2022-11-01 | 陕西晖煌建筑劳务有限公司 | Bridge pile foundation drilling equipment |
| CN115354966A (en) * | 2022-10-24 | 2022-11-18 | 江苏翼电科技有限公司 | Modular rotary drilling machine drill bit |
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2020
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112267822A (en) * | 2020-11-26 | 2021-01-26 | 西南石油大学 | Continuous drilling chip removal pouring integrated piling tool capable of preventing hole collapse |
| CN112282658A (en) * | 2020-11-26 | 2021-01-29 | 西南石油大学 | Continuous drilling and circulating pouring integrated piling tool |
| CN112282658B (en) * | 2020-11-26 | 2022-02-18 | 西南石油大学 | Continuous drilling and circulating pouring integrated piling tool |
| CN112267822B (en) * | 2020-11-26 | 2022-03-15 | 西南石油大学 | Continuous drilling chip removal pouring integrated piling tool capable of preventing hole collapse |
| US11873689B2 (en) | 2020-11-26 | 2024-01-16 | Southwest Petroleum University | Integrated piling tool with continuous drilling and circulation pouring |
| CN112483006A (en) * | 2020-12-08 | 2021-03-12 | 中国矿业大学 | Rock threaded hole drilling bit of rotary drilling rig and using method and application thereof |
| CN112483006B (en) * | 2020-12-08 | 2024-05-17 | 中国矿业大学 | Rock threaded hole drilling bit of rotary drilling rig, and use method and application thereof |
| CN115162446A (en) * | 2022-07-29 | 2022-10-11 | 广州筑金基础工程机械技术有限责任公司 | Hobbing cutter and gear wheel composite cutter head for groove milling machine |
| CN115263195A (en) * | 2022-09-28 | 2022-11-01 | 陕西晖煌建筑劳务有限公司 | Bridge pile foundation drilling equipment |
| CN115263195B (en) * | 2022-09-28 | 2022-12-20 | 陕西晖煌建筑劳务有限公司 | Bridge pile foundation drilling equipment |
| CN115354966A (en) * | 2022-10-24 | 2022-11-18 | 江苏翼电科技有限公司 | Modular rotary drilling machine drill bit |
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