CN111395968A - Split type two-bucket rotary drilling bit - Google Patents
Split type two-bucket rotary drilling bit Download PDFInfo
- Publication number
- CN111395968A CN111395968A CN202010362506.2A CN202010362506A CN111395968A CN 111395968 A CN111395968 A CN 111395968A CN 202010362506 A CN202010362506 A CN 202010362506A CN 111395968 A CN111395968 A CN 111395968A
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- Prior art keywords
- box
- hinge
- split type
- rotary drilling
- drilling bit
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Links
- 238000005553 drilling Methods 0.000 title claims abstract description 35
- 230000000149 penetrating effect Effects 0.000 claims abstract description 11
- 230000002787 reinforcement Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 3
- 241000446313 Lamella Species 0.000 claims 1
- 238000003466 welding Methods 0.000 abstract description 13
- 238000005299 abrasion Methods 0.000 abstract description 4
- 238000005336 cracking Methods 0.000 abstract description 4
- 230000003014 reinforcing effect Effects 0.000 description 17
- 238000010276 construction Methods 0.000 description 4
- 238000009412 basement excavation Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Images
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
-
- 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
- E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
-
- 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
- E21B27/00—Containers for collecting or depositing substances in boreholes or wells, e.g. bailers, baskets or buckets for collecting mud or sand; Drill bits with means for collecting substances, e.g. valve drill bits
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 split type two-bucket rotary drilling bit, which comprises: the cylinder body comprises two half cylinder bodies which are oppositely arranged and can be enclosed into the cylinder body; the connecting square box comprises two hinge side sleeves, a hinge middle sleeve and a hinge middle shaft, wherein the hinge side sleeves are embedded in the half cylinders in a penetrating mode, the hinge middle sleeve is fixedly arranged at the lower end of the connecting square box, the hinge middle sleeve is arranged in the hinge middle sleeve in a matching mode, and the hinge middle shaft penetrates through the hinge side sleeves and the hinge middle sleeve. According to the split type two-bucket rotary drilling bit provided by the embodiment of the invention, the two hinge side sleeves are embedded in the cylinder body in a penetrating manner, so that the problem that the cylinder body falls off due to abrasion, cracking and the like of an exposed welding line is reduced.
Description
Technical Field
The invention relates to the technical field of rotary excavators, in particular to a split type two-bucket rotary excavating drill bit.
Background
The rotary drilling machine is a comprehensive drilling machine, can be used for various bottom layers, and has the characteristics of high hole forming speed, less pollution, strong maneuverability and the like. Short auger bits perform dry excavation operations, and rotary drill bits may also be used to perform wet excavation operations with mud dado. The rotary excavator can be matched with a hammer to drill and dig holes in hard stratum. If the reamer is matched with a reaming head drilling tool, reaming operation can be carried out at the bottom of the hole. The rotary excavating machine adopts a plurality of layers of telescopic drill rods, has less drilling auxiliary time and low labor intensity, does not need slurry to discharge slag circularly, saves cost and is particularly suitable for the basic construction of urban construction. Wherein the rotary digging drill bit is connected with the main body of the rotary digging machine and is the main equipment for drilling,
the two-bucket rotary drilling bit is combined into a complete cylinder body during drilling, and is opened during soil unloading, so that the soil unloading is more convenient compared with an integrated drill bit. Publication No. CN210033292U discloses a two-petal bucket rotary drilling bit of bottomless formula, and publication No. CN210033286U discloses a two-petal bucket rotary drilling bit, all has following problem:
1. the hinge side sleeve is welded with the top of the cylinder body, and the welding seam is extremely easy to wear and tear to cause cracking and the cylinder body to fall.
2. Connecting square chest and hinge well cover, connecting plate welding, in the use, the powerful torsion of machine makes the welding seam fracture easily, leads to connecting square chest to drop, and whole barrel drops in the stake hole, needs the manual work to salvage and leads to the stake hole to scrap even.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides the split type two-bucket rotary drilling bit, which can improve the strength of a connecting structure between the connecting square box and the cylinder body, reduce the risk of falling of the cylinder body and enable the whole structure of the drill bit to be firmer and more durable.
The technical scheme adopted by the embodiment of the invention is as follows: a split type two-bucket rotary drilling bit comprises:
the cylinder body comprises two half cylinder bodies which are oppositely arranged and can be enclosed into the cylinder body;
the connecting square box comprises two hinge side sleeves, a hinge middle sleeve and a hinge middle shaft, wherein the hinge side sleeves are embedded in the half cylinders in a penetrating mode, the hinge middle sleeve is fixedly arranged at the lower end of the connecting square box, the hinge middle sleeve is arranged in the hinge middle sleeve in a matching mode, and the hinge middle shaft penetrates through the hinge side sleeves and the hinge middle sleeve.
The split type two-bucket rotary drilling bit provided by the embodiment of the invention at least has the following beneficial effects: the two hinge side sleeves are embedded in the cylinder body in a penetrating mode, so that the problem that the cylinder body falls off due to abrasion, cracking and the like of exposed welding seams is solved.
According to some embodiments of the present invention, a first connecting plate is disposed at the bottom end of the connecting square box, two hinge middle sleeves are fixedly disposed on the lower end surface of the first connecting plate, a second connecting plate is disposed on the lower end surface of the two hinge middle sleeves, the first connecting plate and the second connecting plate are connected to each other through a plurality of connecting rib plates, and the connecting rib plates are fixedly connected to the connecting square box.
According to some embodiments of the invention, the number of the connecting rib plates is four, the four connecting rib plates are arranged on the left side and the right side of the connecting square box in pairwise symmetry, the connecting rib plates are provided with clamping grooves, the first connecting plate and the second connecting plate are fixedly arranged in the clamping grooves, and the upper parts of the connecting rib plates are fixedly connected with the connecting square box.
According to some embodiments of the invention, the connecting square box comprises a box body and a reinforcing frame, the box body is hollow inside and is provided with an upper opening for a drill rod of the rotary drilling machine to be inserted in a matching manner, a box body through hole is formed in the peripheral side of the box body, the upper end surface of the box body is a plane, the reinforcing frame is sleeved on the peripheral side of the box body and is used for reinforcing the box body, and the upper end surface of the reinforcing frame is a plane and is flush with the upper end surface of the box body.
According to some embodiments of the invention, the box body through hole includes a plurality of first pin holes penetrating from a set of opposite faces of the box body, and the plurality of first pin holes are vertically arranged.
According to some embodiments of the invention, the box through hole further comprises a second pin hole penetrating from another set of opposing faces of the box.
According to some embodiments of the invention, the box through hole is a kidney-shaped hole.
According to some embodiments of the present invention, the two half cylinder splicing surfaces comprise at least two pairs of blocking blocks, and the two pairs of blocking blocks are respectively disposed at the upper part and the lower part of the two half cylinders.
According to some embodiments of the invention, the half-cylinder is provided with a support plate supporting the two hinge edge sleeves.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
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 schematic overall structure diagram of a split type two-bucket rotary drilling bit according to an embodiment of the invention;
FIG. 2 is a schematic structural view of the half cylinder portion;
FIG. 3 is a schematic view showing a connection structure of the connecting square box and the linking middle sleeve;
FIG. 4 is a schematic view of the construction of the joint box (a schematic view of the construction of the drill pipe section of the additional rotary excavating machine);
fig. 5 shows a conventional connecting square box.
Reference numerals:
a half cylinder 110;
the square box 200, the box body 210, the reinforcing frame 220, the first pin hole 2111 and the second pin hole 2112 are connected;
the hinge mechanism 300, the hinge side sleeve 310, the hinge middle sleeve 320 and the hinge middle shaft 330;
a first connecting plate 400, a second connecting plate 500, a connecting rib plate 600;
a joint body 710, a joint cap 720 and a joint pin hole 730;
a set of blocks 800.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1 and 2, the split type two-bucket rotary drilling bit comprises:
the cylinder comprises two half cylinders 110, and the two half cylinders 110 are oppositely arranged and can be enclosed into a cylinder body;
the square box connecting device comprises a square box connecting body 200, each half cylinder body 110 is connected with the square box connecting body 200 through a hinge mechanism 300, the hinge mechanism 300 comprises two hinge side sleeves 310, a hinge middle sleeve 320 and a hinge middle shaft 330, the two hinge side sleeves 310 are embedded in the half cylinder bodies 110 in a penetrating mode, the hinge middle sleeve 320 is fixedly arranged at the lower end of the square box connecting body 200, the hinge middle sleeve 320 is arranged between the two hinge side sleeves 310 in a matching mode, the hinge middle shaft 330 penetrates through the hinge side sleeves 310 and the hinge middle sleeve 320, two ends of the hinge middle shaft 330 are connected to the hinge side sleeves 310, and the middle portion of the hinge middle shaft penetrates through a center hole of the hinge middle sleeve 320 and can rotate around the.
This application establishes on semi-cylindrical body 110 through running through hinge limit cover 310, the exposure of the welding position between hinge limit cover 310 and semi-cylindrical body 110 has been reduced, in the use, can reduce welding position and worn and torn, even the welding wearing and tearing between hinge limit cover 310 and semi-cylindrical body 110, the condition such as fracture, because the adoption of hinge limit cover 310 runs through to inlay establishes, also can play certain bearing effect of hanging on semi-cylindrical body 110, semi-cylindrical body 110 is unlikely to just drop suddenly, thereby the risk that the barrel dropped has been reduced.
As shown in fig. 3, a first connecting plate 400 is disposed at the bottom end of the square connecting box 200, the middle sleeves 320 of the two hinges are fixedly disposed on the lower end surface of the first connecting plate 400, a second connecting plate 500 is disposed on the lower end surface of the middle sleeves 320 of the two hinges, the first connecting plate 400 and the second connecting plate 500 are connected together by a plurality of connecting rib plates 600, and the connecting rib plates 600 are fixedly connected with the square connecting box 200.
As shown in fig. 3, in this embodiment, the number of the connecting rib plates 600 is four, the four connecting rib plates 600 are symmetrically arranged on the left and right sides of the connecting square box 200 two by two, the connecting rib plates 600 are provided with the slots 610, the first connecting plate 400 and the second connecting plate 500 are fixedly arranged in the slots, and the upper portions of the connecting rib plates 600 are fixedly connected with the connecting square box 200.
The first connecting plate 400 and the second connecting plate 500 are fixedly arranged in the clamping groove, so that the welding position is located in the clamping groove area, the exposure of the welding position is reduced, the risks of abrasion and cracking of the welding position in the use process are reduced, and the possibility of falling off of the second connecting plate 500 can be reduced.
In the conventional connection square box shown in fig. 5, the reinforcing frame 220 only needs to be welded to the box body 210, and in order to reduce the welding difficulty, the upper end surface of the reinforcing frame 220 is generally lower than the upper end surface of the box body 210, and at this time, the upper end surface of the box body 210 and a pin shaft of the box body 210 matched with a drill rod bear the pressure of the drill rod of the rotary drilling machine. In the using process, the part of the upper part of the box body 210 protruding out of the reinforcing frame 220 is often easily deformed by pressure, and the pin shaft bears the pressure alone, so that the pin shaft is easily broken, the barrel body falls off, and the safety is low and the cost is high.
As shown in fig. 4, in the present application, the connection square box 200 includes a box body 210 and a reinforcement frame 220, the box body 210 is hollow and has an upper opening for inserting a drill rod of the rotary drilling machine, a box body through hole 211 is formed on the periphery of the box body 210, the upper end surface of the box body 210 is a plane, the reinforcement frame 220 is sleeved on the periphery of the box body 210 for reinforcing the box body 210, and the upper end surface of the reinforcement frame 220 is a plane and is flush with the upper end surface of the box body 210.
By arranging the upper end surfaces of the reinforcing frame 220 and the box body 210 to be flat and enabling the upper end surfaces of the reinforcing frame 220 and the box body 210 to be flush, when a drill rod of the rotary drilling machine is pressed down, the reinforcing frame 220 and the box body 210 bear pressure together, so that the pressure bearing area is increased, and excessive abrasion and deformation of the box body 210 are avoided.
As shown in fig. 4, the lower portion of the drill rod of the rotary drilling machine is provided with a connector for connecting with the box 210, the connector includes a connector body 710 and a connector cap 720, and the connector body 710 is provided with a connecting pin hole 730.
The box 210 is hollow and has an upper opening for inserting the drill rod of the rotary drilling machine in a matching manner, specifically, the inner space of the box 210 is matched with the connector body 710 at the lower part of the drill rod of the rotary drilling machine, the box 210 is provided with box through holes 211 at the periphery side for matching with the connecting pin holes 730, so that the box 210 and the drill rod of the rotary drilling machine are connected by inserting a pin shaft (not shown in the figure), and the upper end surface of the box 210 is a plane.
The reinforcing frame 220 is disposed around the casing 210 for reinforcing the casing 210, and an upper end surface of the reinforcing frame 220 is a plane and flush with an upper end surface of the casing 210. It is contemplated that after the box body 210 and the reinforcing frame 220 are assembled, the upper surface of the box body 210 and the upper surface of the reinforcing frame 220 are at the same level and can jointly bear the pressure of the connector cap 720, i.e., the pressed area is increased, thereby preventing the box body 210 from being excessively deformed.
In some embodiments of the present invention, the case body through hole 211 includes a first pin hole 2111 penetrating from a set of opposite surfaces of the case body 210, and the first pin hole 2111 is vertically arranged in plurality. Through vertical arrangement be provided with a plurality of first pinhole 2111, different model connectors, its pinhole height is different, selects suitable first pinhole 2111, has improved the suitability.
In some embodiments of the present invention, the housing through-hole 211 further includes a second pin hole 2112 extending through the other set of opposing faces of the housing 210. For some connectors with pin holes on multiple surfaces, the first pin hole 2111 and the second pin hole 2112 can be matched with the connectors, so that the application range is expanded. It is contemplated that in other embodiments, the second pin holes 2112 may be arranged in a plurality of vertical rows according to the specification of a common connector, or may be designed in other forms.
In some embodiments of the present invention, the case through hole 211 is a kidney-shaped hole. Through setting up to waist type hole, effectively reduce to produce in the use gyration moment of torsion shearing force and cut off connecting pin to increase round pin axle life, thereby guarantee quality and reduce cost.
In some embodiments of the present invention, the split surfaces of the two half cylinders 110 comprise at least two pairs of stop blocks 800, and the two pairs of stop blocks 800 are respectively disposed at the upper and lower portions of the two half cylinders 110.
In the current two-petal type drill bit, as in the two patent applications mentioned in the background art, only one pair of stop blocks 800 are provided, and the main function of the stop blocks 800 is to prevent the barrel from expanding outwards to cause the barrel to deform and fail to work normally during the forward rotation of the drill bit. However, the block set 800 is subjected to a large force during operation, and the welding position thereof is easily cracked to cause falling off. If only one pair is provided, when one of the pair falls off, the two half cylinders 110 lose the restriction function and are easily opened outwards. By arranging the two pairs of stop blocks 800, when one of the two pairs of stop blocks falls off, the rest stop blocks can play a limiting role, and the fault tolerance rate is improved easily.
In some embodiments of the present invention, the half cylinder 110 is provided with a support plate 111 supporting the two hinge side covers 310. By providing the support plate 111, the overall structural strength is further improved. Besides the support of the half cylinder 110, the hinge side sleeve 310 increases the support of the support plate 111, i.e. increases the force bearing surface, and also reduces the acting force between the hinge side sleeve 310 and the half cylinder 110.
The present invention is not limited to the above-described embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are included in the scope defined by the claims of the present application.
Claims (9)
1. The utility model provides a drill bit is dug soon to two split type lamellas fill which characterized in that: the method comprises the following steps:
the cylinder body comprises two half cylinder bodies which are oppositely arranged and can be enclosed into the cylinder body;
the connecting square box comprises two hinge side sleeves, a hinge middle sleeve and a hinge middle shaft, wherein the hinge side sleeves are embedded in the half cylinders in a penetrating mode, the hinge middle sleeve is fixedly arranged at the lower end of the connecting square box, the hinge middle sleeve is arranged in the hinge middle sleeve in a matching mode, and the hinge middle shaft penetrates through the hinge side sleeves and the hinge middle sleeve.
2. The split type two-bucket rotary drilling bit according to claim 1, characterized in that: the bottom end of the connecting square box is provided with a first connecting plate, the middle hinge sleeves are fixedly arranged on the lower end face of the first connecting plate, the lower end face of the middle hinge sleeve is provided with a second connecting plate, the first connecting plate and the second connecting plate are connected into a whole through a plurality of connecting rib plates, and the connecting rib plates are fixedly connected with the connecting square box.
3. The split type two-bucket rotary drilling bit according to claim 2, characterized in that: the connecting rib plates are four, the four connecting rib plates are symmetrically arranged on the left side and the right side of the connecting square box in pairs, clamping grooves are formed in the connecting rib plates, the first connecting plate and the second connecting plate are fixedly arranged in the clamping grooves, and the upper portions of the connecting rib plates are fixedly connected with the connecting square box.
4. The split type two-bucket rotary drilling bit according to any one of claims 1 to 3, characterized in that: connect the square chest and include box and reinforcement frame, the inside cavity of box and top opening are in order to supply to dig quick-witted drilling rod matching soon and insert, and week side is equipped with the box through-hole, the up end of box is the plane, the reinforcement frame cover is established box week side is in order to be used for the reinforcement the box, reinforcement frame up end be the plane, and with box up end parallel and level.
5. The split type two-bucket rotary drilling bit according to claim 4, characterized in that: the box through hole comprises a first pin hole penetrating through a group of opposite surfaces of the box, and the first pin holes are vertically arranged in a plurality.
6. The split type two-bucket rotary drilling bit according to claim 5, characterized in that: the box through hole further comprises a second pin hole penetrating through the other group of opposite surfaces of the box.
7. The split type two-bucket rotary drilling bit according to claim 4, characterized in that: the box through hole is a waist-shaped hole.
8. The split type two-bucket rotary drilling bit according to any one of claims 1 to 3, characterized in that: the two semi-cylinder splicing surfaces comprise at least two pairs of baffle groups, and the two pairs of baffle groups are respectively arranged at the upper part and the lower part of the two semi-cylinders.
9. The split type two-bucket rotary drilling bit according to any one of claims 1 to 3, characterized in that: the half cylinder body is provided with a supporting plate for supporting the two hinge side sleeves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010362506.2A CN111395968B (en) | 2020-04-30 | 2020-04-30 | Split type two-bucket rotary drilling bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010362506.2A CN111395968B (en) | 2020-04-30 | 2020-04-30 | Split type two-bucket rotary drilling bit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111395968A true CN111395968A (en) | 2020-07-10 |
| CN111395968B CN111395968B (en) | 2021-07-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010362506.2A Active CN111395968B (en) | 2020-04-30 | 2020-04-30 | Split type two-bucket rotary drilling bit |
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| Country | Link |
|---|---|
| CN (1) | CN111395968B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112127798A (en) * | 2020-09-08 | 2020-12-25 | 长沙市金钻机械有限公司 | Split double-bottom pick sand-catching bucket rotary drilling bit |
| CN112267839A (en) * | 2020-11-13 | 2021-01-26 | 中铁四局集团建筑工程有限公司 | Drill bit for rotary drilling rig |
| CN115199226A (en) * | 2022-07-26 | 2022-10-18 | 徐州徐工基础工程机械有限公司 | High-rigidity split small-barrel-diameter active soil unloading drilling tool |
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| CN106337657A (en) * | 2016-11-24 | 2017-01-18 | 合肥工业大学 | Deformable rotary drill bit |
| CN209413866U (en) * | 2018-11-12 | 2019-09-20 | 长沙市金钻机械有限公司 | A kind of connection square chest of rotary digging drill bit |
| CN110500038A (en) * | 2018-05-17 | 2019-11-26 | 中铁第五勘察设计院集团有限公司 | Tubular geotome head |
| CN110566148A (en) * | 2019-10-18 | 2019-12-13 | 北京三一智造科技有限公司 | Drilling bucket and rotary drilling rig |
| CN210033286U (en) * | 2019-04-30 | 2020-02-07 | 武汉南方岩土工程技术有限责任公司 | Two-petal bucket rotary drilling bit |
| CN210033292U (en) * | 2019-04-30 | 2020-02-07 | 武汉南方岩土工程技术有限责任公司 | Bottomless type two-bucket rotary drilling bit |
| CN210977365U (en) * | 2019-11-18 | 2020-07-10 | 中冶集团武汉勘察研究院有限公司 | Drill bit for rotary drilling rig capable of reducing noise |
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2020
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106337657A (en) * | 2016-11-24 | 2017-01-18 | 合肥工业大学 | Deformable rotary drill bit |
| CN110500038A (en) * | 2018-05-17 | 2019-11-26 | 中铁第五勘察设计院集团有限公司 | Tubular geotome head |
| CN209413866U (en) * | 2018-11-12 | 2019-09-20 | 长沙市金钻机械有限公司 | A kind of connection square chest of rotary digging drill bit |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112127798A (en) * | 2020-09-08 | 2020-12-25 | 长沙市金钻机械有限公司 | Split double-bottom pick sand-catching bucket rotary drilling bit |
| CN112127798B (en) * | 2020-09-08 | 2022-07-12 | 长沙市金钻机械有限公司 | Split double-bottom pick sand-catching bucket rotary drilling bit |
| CN112267839A (en) * | 2020-11-13 | 2021-01-26 | 中铁四局集团建筑工程有限公司 | Drill bit for rotary drilling rig |
| CN115199226A (en) * | 2022-07-26 | 2022-10-18 | 徐州徐工基础工程机械有限公司 | High-rigidity split small-barrel-diameter active soil unloading drilling tool |
| CN115199226B (en) * | 2022-07-26 | 2024-04-19 | 徐州徐工基础工程机械有限公司 | High-rigidity split small-barrel-diameter active soil unloading drilling tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111395968B (en) | 2021-07-27 |
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