CN212317859U - 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
- Publication number
- CN212317859U CN212317859U CN202021094897.6U CN202021094897U CN212317859U CN 212317859 U CN212317859 U CN 212317859U CN 202021094897 U CN202021094897 U CN 202021094897U CN 212317859 U CN212317859 U CN 212317859U
- Authority
- CN
- China
- Prior art keywords
- rock
- hob
- rotary drilling
- drilling rig
- drill
- 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.)
- Active
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 75
- 239000011435 rock Substances 0.000 claims abstract description 69
- 239000002893 slag Substances 0.000 abstract description 8
- 230000015572 biosynthetic process Effects 0.000 abstract description 5
- 238000005096 rolling process Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 description 9
- 239000004576 sand Substances 0.000 description 4
- 230000036346 tooth eruption Effects 0.000 description 4
- 125000004122 cyclic group Chemical group 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000010006 flight 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
Landscapes
- Earth Drilling (AREA)
Abstract
本实用新型涉及旋挖钻机技术领域，具体涉及一种旋挖钻机入岩钻头和旋挖钻机。本实用新型提供的旋挖钻机入岩钻头包括钻筒、刀具和环状刀盘，环状刀盘上设有滚刀、斗齿和钻刀，在对硬岩进行钻孔作业时，滚刀先接触岩石，因滚刀轴能够承受较大的径向压力，受到径向压力后滚刀会对岩层产生较大的压强，岩石受到滚刀撵压会产生裂纹，实现预破碎。牙轮或截齿再继续跟进，对岩层产生磨削、敲击破碎。因滚刀的碾压已经产生裂纹，截齿或牙轮能轻易潜入岩层缝隙，对岩层造成挤压破碎。斗齿跟进主要防止牙轮和截齿切削后产生的碎屑造成钻渣的二次磨削，与现有的单一钻头相比，本申请提供的钻头，能够适用于不同地质的岩层施工，适用范围更广，入岩效率更高。
The utility model relates to the technical field of rotary drilling rigs, in particular to a rock drilling bit of a rotary drilling rig and a rotary drilling rig. The rock drilling bit of the rotary drilling rig provided by the utility model comprises a drill tube, a cutter and an annular cutter head, and the annular cutter head is provided with a hob, bucket teeth and a cutter. First contact the rock, because the hob shaft can withstand a large radial pressure, the hob will generate a large pressure on the rock layer after being subjected to the radial pressure, and the rock will crack when pressed by the hob to achieve pre-breaking. The cones or picks continue to follow up, grinding, knocking and breaking the rock formation. Cracks have been generated due to the rolling of the hob, and the pick or cone can easily dive into the crevice of the rock formation, causing crushing and crushing of the rock formation. The follow-up of the bucket teeth mainly prevents the secondary grinding of the drill slag caused by the debris generated after the cutting of the rollers and the picks. Wider application range and higher rock entry efficiency.
Description
Technical Field
The utility model relates to a dig rig technical field soon, concretely relates to dig rig soon and go into rock drill bit and dig rig soon.
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.
SUMMERY OF THE UTILITY MODEL
The utility model discloses (one) the technical problem that solve is: 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, an embodiment of the utility model 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 an embodiment of the present invention, at least one hob and at least one bucket tooth are provided 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 an embodiment of the utility model, the drill bit is for locating at least one gear wheel on the cyclic annular blade disc.
According to an embodiment of the present invention, the annular cutter head is provided with a plurality of hobs, a plurality of bucket teeth and a plurality of gear wheels; 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 the utility model discloses an embodiment, the drill bit is for locating at least one pick on the cyclic annular blade disc.
According to one embodiment of the utility model, a plurality of hobbing cutters, 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.
According to an embodiment of the utility model, the drill bit is including locating at least one gear wheel and at least one pick on the cyclic annular blade disc.
According to one embodiment of the utility model, a plurality of hobbing cutters, a plurality of bucket teeth, a plurality of gear wheels and a plurality of cutting teeth 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 an embodiment of the present invention, the outer wall of the drill cylinder is provided with a spiral piece.
The utility model also provides a dig the rig soon, including any embodiment of the aforesaid dig the rig soon and go into the rock drill bit.
The utility model has the advantages that: the rock-entering drill bit of the rotary drilling rig provided by the embodiment of the utility model comprises an annular cutter head and a cutter, wherein the annular cutter head is provided with a hobbing cutter, a bucket tooth and a drilling tool, and the drilling tool is one or two of a gear wheel 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 above and/or additional aspects and advantages 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 present 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 present 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 present invention;
fig. 4 is a perspective view of the rock-entering drill bit of the rotary drilling rig according to the second embodiment of the present invention;
fig. 5 is a bottom view of the rock-entering drill bit of the rotary drilling rig according to the second embodiment of the present invention;
FIG. 6 is a side view of the rock-entering drill bit of the rotary drilling rig in the second embodiment of the present invention
Fig. 7 is a perspective view of the rock-entering drill bit of the rotary drilling rig according to the third embodiment of the present invention;
fig. 8 is a bottom view of the rock-entering drill bit of the rotary drilling rig according to the third embodiment of the present invention;
fig. 9 is a side view of the rock-entering drill bit of the rotary drilling rig in the third embodiment of the present 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
In order to clearly understand the above objects, features and advantages of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and the detailed description. 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 embodiment of the utility model provides a dig rig soon and go into rock drill bit 1 includes to bore a section of thick bamboo 11, and the open end that bores a section of thick bamboo 11 is equipped with hobbing cutter 111, bucket tooth 112 and brill sword, and the brill sword is one or two in gear wheel 114 and the pick 113. When drilling hard rock, the hob 111 firstly contacts the rock, and the shaft of the hob 111 can bear large radial pressure, so that the rock is radially pre-crushed, and the hob 111 can be aligned after the radial pressure is appliedThe rock stratum generates large pressure, and the rock stratum can generate cracks after being subjected to pressure removal by the hob 111, so that pre-crushing is realized. 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 cone 114 and the pick 113 from being generated after cuttingSecondary grinding of drill slag caused by chipping The bucket teeth 112 need to remove cutting debris in the ring grooves.
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 following of the teeth 112 mainly prevents the cone 114 and the pick 113 from being generated after cuttingDebris-caused drilling slag Sub-grinding The bucket teeth 112 need to remove cutting debris 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 following mainly prevents the pick 113 from cuttingBits causing drills Secondary grinding of slag The teeth 112 are required to remove the cutting debris from the pockets and discharge the debris through the flights 115 in the barrel wall.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 following of the teeth 112 mainly prevents the cone 114 and the pick 113 from being generated after cuttingChip maker Secondary grinding of formed drilling slag The bucket teeth 112 need to remove cutting debris in the ring grooves, and the debris is discharged through the spiral sheets 115 on the wall of the bucket; 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 only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, 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 is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the communication may be direct, indirect via an intermediate medium, or internal to both elements. The specific meaning 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 preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021094897.6U CN212317859U (en) | 2020-06-15 | 2020-06-15 | Rock-entering drill bit of rotary drilling rig and rotary drilling rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021094897.6U CN212317859U (en) | 2020-06-15 | 2020-06-15 | Rock-entering drill bit of rotary drilling rig and rotary drilling rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212317859U true CN212317859U (en) | 2021-01-08 |
Family
ID=74025384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021094897.6U Active CN212317859U (en) | 2020-06-15 | 2020-06-15 | Rock-entering drill bit of rotary drilling rig and rotary drilling rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212317859U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111622676A (en) * | 2020-06-15 | 2020-09-04 | 赵鑫宇 | Rock-entering drill bit of rotary drilling rig and rotary drilling rig |
-
2020
- 2020-06-15 CN CN202021094897.6U patent/CN212317859U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111622676A (en) * | 2020-06-15 | 2020-09-04 | 赵鑫宇 | Rock-entering drill bit of rotary drilling rig and rotary drilling rig |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111622676A (en) | Rock-entering drill bit of rotary drilling rig and rotary drilling rig | |
| EP1641998B1 (en) | Percussive drill bit | |
| CA2526254C (en) | Drill bit, system, and method for drilling a borehole in an earth formation | |
| US7455126B2 (en) | Percussive drill bit, drilling system comprising such a drill bit and method of drilling a bore hole | |
| CN218624093U (en) | Rotary drilling rig suitable for high-groundwater-level hard soil layer | |
| CN212317859U (en) | Rock-entering drill bit of rotary drilling rig and rotary drilling rig | |
| EP1627130B1 (en) | Percussive drill bit, drilling system comprising such a drill bit and method of drilling a bore hole | |
| CN207406280U (en) | One kind is non-to wash multiple cone PDC cutter composite drill bit certainly | |
| US12049788B2 (en) | Cutter geometry utilizing spherical cutouts | |
| CN109915025B (en) | Barrel-mounted roller cone combined rock breaking drill bit | |
| CN213627443U (en) | Polycrystalline diamond compact bit with butterfly-shaped cloth teeth | |
| CN112360497B (en) | Push bench cutter head with hobbing cutter cutting device | |
| WO2020076358A1 (en) | Convex ridge type non-planar cutting tooth and diamond drill bit | |
| CN217602579U (en) | Compound concave PDC drill bit with conical teeth | |
| CN210738477U (en) | Diamond anchor rod drill bit | |
| CN219327513U (en) | Rotary drill bit with replacement function | |
| CN110685606B (en) | Fixed cutting structure-roller composite drill bit | |
| CN212054507U (en) | Single-cone PDC concentric reaming bit while drilling | |
| CN115538943A (en) | Rotary drill bit with movable blades and movable cutting teeth combined and linked | |
| CN212689927U (en) | Cone Recessed Single Cone and PDC Compound Bits | |
| CN107060653A (en) | One kind mixing broken rock mechanism and a kind of long-life Mixed drilling bit | |
| CN110985033A (en) | Cutter head of push bench with N cutter bits and diamond or PDC drill bit | |
| CN218177152U (en) | Plowshare tooth drill bit suitable for hard plastic mudstone | |
| CN213510451U (en) | Composite drill bit | |
| CN113153161B (en) | Hard rock cutting drill bit for heel-pipe pile while drilling and construction method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |