CN111173455A - Needle tube type extrusion drill bit for rotary drilling rig - Google Patents
Needle tube type extrusion drill bit for rotary drilling rig Download PDFInfo
- Publication number
- CN111173455A CN111173455A CN202010072658.9A CN202010072658A CN111173455A CN 111173455 A CN111173455 A CN 111173455A CN 202010072658 A CN202010072658 A CN 202010072658A CN 111173455 A CN111173455 A CN 111173455A
- Authority
- CN
- China
- Prior art keywords
- disc
- plate
- fixedly connected
- cutting
- slag discharging
- 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.)
- Pending
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 57
- 238000001125 extrusion Methods 0.000 title claims abstract description 16
- 239000002893 slag Substances 0.000 claims abstract description 46
- 238000007599 discharging Methods 0.000 claims abstract description 42
- 230000006835 compression Effects 0.000 claims abstract description 30
- 238000007906 compression Methods 0.000 claims abstract description 30
- 238000003825 pressing Methods 0.000 claims description 31
- 230000036346 tooth eruption Effects 0.000 claims description 17
- 238000010276 construction Methods 0.000 abstract description 6
- 239000002689 soil Substances 0.000 description 5
- 210000001503 joint Anatomy 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
- E21B10/43—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits characterised by the arrangement of teeth or other cutting elements
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
-
- 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
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
- E21B10/54—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type 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
- 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 needle tube type extrusion drill bit for a rotary drilling rig, which comprises a drill barrel, wherein the upper end of the drill barrel is fixedly connected with a square head upper disc assembly, a slag discharging part is movably connected in the drill barrel, a compression part comprises a compression bar in sliding connection with an upper disc, a compression spring is sleeved on the compression bar, and the compression bar comprises at least one long compression bar and one short compression bar; the slag discharging part comprises a slag discharging disc which is connected with the drill cylinder in an up-and-down sliding manner, and the upper end of the slag discharging disc is connected with the bottom end of the short pressure rod; in addition, the drill bit is convenient to construct, operation habits of a drilling machine do not need to be changed, construction efficiency is high, cost is saved, and economic benefits are improved.
Description
Technical Field
The invention relates to the technical field of drill bits of rotary drilling rigs, in particular to a needle tube type extrusion drill bit for a rotary drilling rig.
Background
With the development of science and technology, the pile foundation is widely applied to the fields of subway construction, stations, airports, house buildings and the like due to large bearing capacity and stable structure, but how to control noise is a difficult point when the existing pile machine is constructed. The current common methods are: the drill rod is rotated forward and backward quickly to drive the drill bit to throw away the muck; the main cable is quickly retracted and released, so that the slag soil in the drill bit is shaken out.
However, the defects of the construction commonly used at present mainly include that 1, long-term shaking of the main cable can accelerate the aging speed of the cable. 2. For a cohesive soil layer, the residual soil is difficult to throw out, and the efficiency is low. 3. Rotating the drill rod quickly can produce a loud noise.
Disclosure of Invention
The invention aims to provide a needle tube type extrusion drill bit for a rotary drilling rig, and aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a needle tube type extrusion drill bit for a rotary drilling rig comprises a drilling barrel, wherein a cutting part is arranged at the lower end of the drilling barrel, a square head upper plate assembly is fixedly connected to the upper end of the drilling barrel, a slag discharging part is movably connected in the drilling barrel, and the slag discharging part is positioned above the cutting part and is in up-and-down sliding connection with the square head upper plate assembly through a pressing part;
the square head upper disc assembly comprises an upper disc fixedly connected with a drilling cylinder, a square head is fixedly connected to one end, far away from the drilling cylinder, of the upper disc, and square openings are formed in the square head and the upper disc;
the pressing part comprises a pressing rod connected with the upper disc in a sliding manner, the top end of the pressing rod is connected with the square-head upper disc assembly in a sliding manner through a pressing rod sleeve, a pressing spring is arranged between the pressing rod and the upper disc and sleeved on the pressing rod, and the pressing rod comprises at least one long pressing rod and one short pressing rod;
the cutting part comprises a cutting disc, one end of the cutting disc, far away from the drill cylinder, is connected with cutting teeth, the upper end of the cutting disc is connected with a bottom plate, the bottom plate is clamped and connected with the lower end of the drill cylinder, and the bottom plate is connected with the bottom end of the long pressure rod;
the slag discharging part comprises a slag discharging disc which is in vertical sliding connection with the drill cylinder, the lower end of the slag discharging disc is fixedly connected with a conical head, and the upper end of the slag discharging disc is connected with the bottom end of the short pressure rod.
As a further scheme of the invention: at least one through hole is formed in the drilling barrel, and an arc-shaped notch and a clamping notch of the drilling barrel are formed in the position, connected with the bottom plate, of the lower end of the drilling barrel.
As a further scheme of the invention: the square head is enclosed to form a rectangular structure, the corners of the upper end of the square head are fixedly connected with hoops, and outer rib plates are fixedly connected between the upper disc and the square head.
As a further scheme of the invention: the square head is fixedly connected with a limiting block, the pressure rod sleeve is fixedly connected onto the limiting block, the top end of the compression spring is fixedly connected with a pressure rod nut, and the pressure rod nut is located at the lower end of the limiting block.
As a further scheme of the invention: the lower end of the short pressure rod penetrates through the lower end of the upper disc and is connected with a short joint, the lower end of the short joint is connected with the slag discharging disc through a middle joint and a long joint, the slag discharging disc is fixedly connected with a lifting lug, and the lower end of the long joint is rotatably connected with the lifting lug.
As a further scheme of the invention: the long pressure rod penetrates through the upper plate and the slag discharging plate and is connected with the bottom plate through a connecting hook, and a pressure reducing hole is formed in the outer side of the long pressure rod and fixedly connected with the inner wall of the drilling barrel.
As a further scheme of the invention: the slag discharging plate is provided with a round hole, the lower end of the slag discharging plate is fixedly connected with a cover plate, and the cover plate is fixedly connected with the lower end of the round hole.
As a further scheme of the invention: the drilling machine is characterized in that a door-shaped frame is fixedly connected to the upper end of the bottom plate, the door-shaped frame is clamped in a clamping notch of the lower end of the drilling barrel, an inclined sleeve and an axial sleeve are fixedly connected to the upper end of the bottom plate, the inclined sleeve and the axial sleeve are connected through a corner shaft, the inclined sleeve and the axial sleeve are clamped in the arc notch of the drilling barrel at the lower end of the drilling barrel, a drilling barrel arc plate is connected to the corner shaft, and the drilling barrel arc plate is clamped in the arc notch of the drilling barrel.
As a further scheme of the invention: the cutting teeth comprise a first toothed plate, a second toothed plate and a third toothed plate, and two edge shovels are symmetrically arranged at the outer edge of the cutting disc.
As a further scheme of the invention: the cutting disc comprises a cutting disc and is characterized in that fixed points of a first toothed plate and a second toothed plate on the cutting disc are radially symmetrical, bases of the first toothed plate and the second toothed plate are of triangular structures, four cutting teeth are installed on the first toothed plate, five cutting teeth are installed on the second toothed plate, the cutting teeth on the first toothed plate and the second toothed plate are obliquely arranged with the cutting disc, orientations of the cutting teeth on the first toothed plate and the second toothed plate are different, and two cutting teeth with different orientations are arranged at the lower end of a third toothed plate.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the long, medium and short joints are used for connecting the pressing rod with the slag discharging disc, when the drill bit is lifted out of the hole, the disc on the drill rod presses the pressing disc to push the pressing rod to push the slag discharging disc, so that the slag soil in the drill cylinder is quickly pushed out of the drill cylinder, and the drill cylinder can be used for different soil layers, and has low noise and wide application range; in addition, the drill bit is convenient to construct, operation habits of a drilling machine do not need to be changed, construction efficiency is high, cost is saved, and economic benefits are improved.
2. The outer wall of the drill cylinder is provided with the wear-resistant strips and the reamer, so that the wear-resistant strips and the reamer have great effect on the aperture, and the wear-resistant strips also enhance the strength of the drill cylinder.
3. The invention has low noise during construction, can be normally used in places with higher noise control, has strong applicability, can effectively avoid noise pollution generated by construction and improves the working efficiency.
Drawings
FIG. 1 is a schematic structural diagram of the present embodiment;
FIG. 2 is an exploded view of the present embodiment;
FIG. 3 is a schematic structural diagram of the square head assembly of the present embodiment;
fig. 4 is a schematic structural diagram of the cutting disk of the present embodiment.
In the figure:
1-drill cylinder, 11-through hole, 12-drill cylinder arc notch, 13-clamping notch and 14-drill cylinder arc plate;
2-square head upper disc assembly; 21-upper disc, 22-outer rib plate, 23-square head, 24-hoop and 25-square opening;
3-slag discharging part, 31-conical head, 32-slag discharging disc, 33-opening, 34-lifting lug and 35-cover plate;
4-cutting part, 41-cutting disc, 42-cutting tooth, 421-first toothed plate, 422-second toothed plate, 423-third toothed plate, 43-edge shovel, 44-bottom plate, 45-inclined sleeve, 46-shaft sleeve, 47-corner shaft, 48-door frame and 49-connecting hook;
5-a compression part, 51-a compression spring, 52-a compression rod nut, 53-a compression rod sleeve, 54-a long compression rod, 55-a short compression rod, 56-a decompression hole, 57-a middle joint, 58-a long joint and 59-a short joint;
6-drill barrel attachment, 61-wear strip, 62-reamer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, in the embodiment of the invention, a needle tube type extrusion drill bit for a rotary drilling rig comprises a drill barrel 1, wherein a cutting part 4 is arranged at the lower end of the drill barrel 1, a square head upper plate assembly 2 is fixedly connected to the upper end of the drill barrel 1, a slag discharging part 3 is movably connected in the drill barrel 1, and the slag discharging part 3 is positioned above the cutting part 4 and is connected with the square head upper plate assembly 2 in a vertical sliding manner through a pressing part 5;
the drilling barrel 1 is provided with at least one through hole 11, in the embodiment, the drilling barrel 1 is symmetrically provided with two through holes 11, air exhaust and water drainage are carried out through the through holes 11, and the position where the lower end of the drilling barrel 1 is connected with the bottom plate 44 is provided with a drilling barrel arc notch 12 and a clamping notch 13
The square head upper disc assembly 2 comprises an upper disc 21 fixedly connected with the drill barrel 1, one end of the upper disc 21 far away from the drill barrel 1 is fixedly connected with a square head 23, the square head 23 is surrounded to form a rectangular structure, the upper corner of the square head 23 is fixedly connected with a hoop 24, the hoop 24 is provided with four parts which are sequentially connected and fixed at the four corners of the square head 23 in a head-to-head manner, so that the strength of the square head 23 can be enhanced, an outer rib plate 22 is fixedly connected between the upper disc 21 and the square head 23, the square head 23 is additionally supported by the outer rib plate 22, the stability of the square head 23 is ensured, and a square opening 25 is formed in the square head 23 and the upper disc 21 and is used for being connected with a drill rod;
the compressing part 5 comprises a compression rod connected with the upper disc 21 in a sliding manner, the top end of the compression rod is connected with the square-head upper disc assembly 2 in a sliding manner through a compression rod sleeve 53, a limiting block is fixedly connected onto the square head 23, the compression rod sleeve 53 is fixedly connected onto the limiting block, a compression spring 51 is arranged between the compression rod and the upper disc 21, the compression spring 51 is sleeved on the compression rod, a compression rod nut 52 is fixedly connected onto the top end of the compression spring 51 and is positioned at the lower end of the limiting block, the compression rod comprises at least one long compression rod 54 and one short compression rod 55, in the embodiment, two short compression rods 55 are arranged, the short compression rod 55 penetrates through the lower end of the upper disc 21 and is connected with a short joint 59, the lower end of the short joint 59 is connected with the slag discharge disc 32 through a middle joint 57 and a long joint 58, the slag discharge disc 32 is fixedly connected with the, The long joint 58 pushes the slag discharging disc 32 to move downwards in the drill cylinder 1, so that mud in the drill cylinder 1 is discharged, one long pressure rod 54 is arranged, the long pressure rod 54 penetrates through the upper disc 21 and the slag discharging disc 32 and is connected with the bottom plate 44 through the connecting hook 49, a pressure reducing hole 56 is arranged on the outer side of the long pressure rod 54, the pressure reducing hole 56 is fixedly connected with the inner wall of the drill cylinder 1, in the embodiment, the pressure reducing hole 56 is of a V-shaped structure, and V-shaped notches enabling the pressure reducing hole 56 to penetrate through are formed in the upper disc 21 and the slag discharging disc 32;
the cutting part 4 comprises a cutting disc 41, one end of the cutting disc 41, which is far away from the drill barrel 1, is connected with a cutting tooth 42, the cutting tooth 42 comprises a first toothed plate 421, a second toothed plate 422 and a third toothed plate 433, two edge shovels 43 are symmetrically arranged at the outer edge of the cutting disc 41, bases of the first toothed plate 421 and the second toothed plate 422 are of a triangular structure, fixing points of the first toothed plate 421 and the second toothed plate 422 on the cutting disc 41 are radially symmetrical, four cutting teeth are installed on the first toothed plate 421, five cutting teeth are installed on the second toothed plate 422, the cutting teeth on the first toothed plate 421 and the second toothed plate 422 are obliquely arranged with the cutting disc 41, orientations of the cutting teeth on the first toothed plate 421 and the second toothed plate 422 are different, namely, the cutting teeth on the first toothed plate 421 incline towards the clockwise direction, the cutting teeth on the second toothed plate 422 incline towards the clockwise direction, the lower end of the third toothed plate 433 is provided with two cutting teeth with different orientations, and orientations of the two cutting teeth are respectively the same as the orientations of the cutting, the upper end of the cutting disc 41 is connected with a bottom plate 44, the middle part of the upper end of the cutting disc 41 is fixedly connected with a long screw, the bottom plate 44 is sleeved on the long screw and is fastened through a nut, the upper end of the bottom plate 44 is fixedly connected with a door-shaped frame 48, the door-shaped frame 48 is clamped in a clamping notch 13 at the lower end of the drill barrel 1, the upper end of the bottom plate 44 is fixedly connected with an inclined sleeve 45 and a shaft sleeve 46, the inclined sleeve 45 and the shaft sleeve 46 are connected through a corner shaft 47, the inclined sleeve 45 and the shaft sleeve 46 are clamped in a drill barrel arc notch 12 at the lower end of the drill barrel 1, the corner shaft 47 is connected with a drill barrel arc plate, and the;
the slag discharging part 3 comprises a slag discharging disc 32 which is connected with the drill barrel 1 in a vertical sliding mode, the lower end of the slag discharging disc 32 is fixedly connected with a conical head 31, the upper end of the slag discharging disc 32 is connected with the bottom end of the short pressure rod 55, a round hole is formed in the slag discharging disc 32, a cover plate 35 is fixedly connected to the lower end of the slag discharging disc 32, and the cover plate 35 is fixedly connected with the lower end of the round hole.
The invention has novel structure and stable operation, when the rotary drilling rig is used and needs to carry out rotary drilling, a drill rod of the rotary drilling rig penetrates through the square opening 25 of the square-head upper plate assembly 2, the drill rod is connected with the drill bit through the square head 23, and then the drill bit is driven to rotate through the drill rod, the rotary drilling can be carried out, mud can be accumulated in the drill bit in the drilling process, and the drill bit needs to be cleaned in time to ensure the continuous working capacity of the drill bit, when mud is accumulated in the drill bit, the drill bit is lifted out of the cast-in-place pile through the drill rod and moved to the periphery of the pile well, then, the short pressure rods 55 are pressed down by the disk on the drill rod, the long pressure rods 54 push the bottom plate 44 and the cutting disk 41 to move downwards, and the lower end of the drill barrel 1 is opened, meanwhile, the short pressure lever 55 pushes the slag discharging disc 32 to move downwards, so that the sludge in the drill barrel 1 is pushed out of the drill barrel 1, and the cleaning of the sludge in the drill barrel 1 is completed.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. The needle tube type extrusion drill bit for the rotary drilling rig comprises a drilling barrel (1), and is characterized in that a cutting part (4) is arranged at the lower end of the drilling barrel (1), a square head upper plate assembly (2) is fixedly connected to the upper end of the drilling barrel (1), a slag discharging part (3) is movably connected in the drilling barrel (1), and the slag discharging part (3) is located above the cutting part (4) and is in up-and-down sliding connection with the square head upper plate assembly (2) through a pressing part (5);
the square-head upper disc assembly (2) comprises an upper disc (21) fixedly connected with the drilling cylinder (1), one end, far away from the drilling cylinder (1), of the upper disc (21) is fixedly connected with a square head (23), and square openings (25) are formed in the square head (23) and the upper disc (21);
the pressing part (5) comprises a pressing rod which is in sliding connection with the upper disc (21), the top end of the pressing rod is in sliding connection with the square-head upper disc assembly (2) through a pressing rod sleeve (53), a pressing spring (51) is arranged between the pressing rod and the upper disc (21), the pressing spring (51) is sleeved on the pressing rod, and the pressing rod comprises at least one long pressing rod (54) and one short pressing rod (55);
the cutting part (4) comprises a cutting disc (41), one end, far away from the drilling barrel (1), of the cutting disc (41) is connected with cutting teeth (42), the upper end of the cutting disc (41) is connected with a bottom plate (44), the bottom plate (44) is clamped and connected with the lower end of the drilling barrel (1), and the bottom plate (44) is connected with the bottom end of the long pressure rod (54);
the slag discharging part (3) comprises a slag discharging disc (32) which is connected with the drill barrel (1) in a vertical sliding mode, the lower end of the slag discharging disc (32) is fixedly connected with a conical head (31), and the upper end of the slag discharging disc (32) is connected with the bottom end of the short pressing rod (55).
2. The needle tube type extrusion drill bit for the rotary drilling rig according to claim 1, characterized in that at least one through hole (11) is formed in the drilling barrel (1), and an arc-shaped notch (12) and a clamping notch (13) of the drilling barrel are formed in a position where the lower end of the drilling barrel (1) is connected with the bottom plate (44).
3. The needle tube type extrusion drill bit for the rotary drilling rig according to claim 1, characterized in that the square head (23) is enclosed into a rectangular structure, a hoop (24) is fixedly connected to a corner of the upper end of the square head (23), and an outer rib plate (22) is fixedly connected between the upper plate (21) and the square head (23).
4. The needle tube type extrusion drill bit for the rotary drilling rig according to claim 1, characterized in that a limiting block is fixedly connected to the square head (23), the pressing rod sleeve (53) is fixedly connected to the limiting block, a pressing rod nut (52) is fixedly connected to the top end of the compression spring (51), and the pressing rod nut (52) is located at the lower end of the limiting block.
5. The needle tube type extrusion drill bit for the rotary drilling rig according to claim 1, characterized in that two short pressure rods (55) are provided, the short pressure rods (55) penetrate through the lower end of the upper plate (21) and are connected with short joints (59), the lower ends of the short joints (59) are connected with the slag discharging plate (32) through middle joints (57) and long joints (58), lifting lugs (34) are fixedly connected to the slag discharging plate (32), and the lower ends of the long joints (58) are rotatably connected with the lifting lugs (34).
6. The needle tube type extrusion drill bit for the rotary drilling rig according to claim 1, characterized in that one long pressure rod (54) is arranged, the long pressure rod (54) penetrates through the upper plate (21) and the slag discharging plate (32) and is connected with the bottom plate (44) through a connecting hook (49), a pressure reducing hole (56) is arranged on the outer side of the long pressure rod (54), and the pressure reducing hole (56) is fixedly connected with the inner wall of the drill barrel (1).
7. The needle tube type extrusion drill bit for the rotary drilling rig according to claim 1, characterized in that a circular hole is formed in the slag discharging disc (32), a cover plate (35) is fixedly connected to the lower end of the slag discharging disc (32), and the cover plate (35) is fixedly connected to the lower end of the circular hole.
8. The needle tube type extrusion drill bit for the rotary drilling rig according to claim 2, characterized in that a door-shaped frame (48) is fixedly connected to the upper end of the bottom plate (44), the door-shaped frame (48) is clamped in a clamping gap (13) at the lower end of the drill cylinder (1), an inclined sleeve (45) and a shaft sleeve (46) are fixedly connected to the upper end of the bottom plate (44), the inclined sleeve (45) and the shaft sleeve (46) are connected through a corner shaft (47), the inclined sleeve (45) and the shaft sleeve (46) are clamped in a drill cylinder arc gap (12) at the lower end of the drill cylinder (1), a drill cylinder arc plate is connected to the corner shaft (47), and the drill cylinder arc plate is clamped in the drill cylinder arc gap (12).
9. The needle tube type extrusion drill bit for the rotary drilling rig according to claim 1, characterized in that the cutting teeth (42) comprise a first toothed plate (421), a second toothed plate (422) and a third toothed plate (433), and two side shovels (43) are symmetrically arranged at the outer edge of the cutting disc (41).
10. The needle tube type squeezing drill bit for the rotary drilling rig according to claim 9, characterized in that fixing points of the first toothed plate (421) and the second toothed plate (422) on the cutting disc (41) are radially symmetrical, bases of the first toothed plate (421) and the second toothed plate (422) are of a triangular structure, four cutting picks are mounted on the first toothed plate (421), five cutting picks are mounted on the second toothed plate (422), the cutting picks on the first toothed plate (421) and the second toothed plate (422) are obliquely arranged with the cutting disc (41), orientations of the cutting picks on the first toothed plate (421) and the second toothed plate (422) are different, and two cutting picks with different orientations are arranged at the lower end of the third toothed plate (433).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010072658.9A CN111173455A (en) | 2020-01-21 | 2020-01-21 | Needle tube type extrusion drill bit for rotary drilling rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010072658.9A CN111173455A (en) | 2020-01-21 | 2020-01-21 | Needle tube type extrusion drill bit for rotary drilling rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111173455A true CN111173455A (en) | 2020-05-19 |
Family
ID=70656547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010072658.9A Pending CN111173455A (en) | 2020-01-21 | 2020-01-21 | Needle tube type extrusion drill bit for rotary drilling rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111173455A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112252989A (en) * | 2020-09-22 | 2021-01-22 | 廊坊聚力勘探科技有限公司 | Ultra-large-diameter rotary drilling bit |
| WO2022100029A1 (en) * | 2020-11-13 | 2022-05-19 | 中铁四局集团建筑工程有限公司 | Drill bit for rotary drilling rig |
-
2020
- 2020-01-21 CN CN202010072658.9A patent/CN111173455A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112252989A (en) * | 2020-09-22 | 2021-01-22 | 廊坊聚力勘探科技有限公司 | Ultra-large-diameter rotary drilling bit |
| WO2022100029A1 (en) * | 2020-11-13 | 2022-05-19 | 中铁四局集团建筑工程有限公司 | Drill bit for rotary drilling rig |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211777215U (en) | Needle tube type extrusion drill bit for rotary drilling rig | |
| CN111173455A (en) | Needle tube type extrusion drill bit for rotary drilling rig | |
| CN211314115U (en) | Mute slag-discharging drill bit for construction of bored pile of rotary drilling rig | |
| CN110924869A (en) | Mute slag-discharging drill bit for construction of bored pile of rotary drilling rig | |
| CN206646507U (en) | A kind of cast-in-situ bored pile Accrete clearing device | |
| WO2022100029A1 (en) | Drill bit for rotary drilling rig | |
| CN102312660B (en) | Hole cleaning drilling tool | |
| CN109736306B (en) | Pile driver for engineering | |
| JPH0262648B2 (en) | ||
| CN115492526B (en) | Bridge pile foundation underwater rotary digging device | |
| CN221074195U (en) | Rotary drilling rig drill bit soil sampling device | |
| CN214062870U (en) | Drill bit soil sampling device for rotary drilling rig | |
| JP3060045B2 (en) | Garbage disposal method | |
| CN213116178U (en) | Drill bit of rotary drilling rig | |
| CN211500543U (en) | Rotary drilling rig drill bit easy for slag unloading | |
| JP7128503B2 (en) | Earthless auger drilling tool | |
| CN219864865U (en) | Drill bit for rotary drilling rig | |
| CN213061964U (en) | Auxiliary device for detecting pavement compactness | |
| CN218027668U (en) | Piling equipment for constructional engineering | |
| CN215332649U (en) | Noise reduction device for construction of rotary drilling machine power head | |
| CN215165970U (en) | A dig quick-witted bucket structure soon for civil engineering | |
| CN219825257U (en) | Simple slag remover for bored pile | |
| CN113880391B (en) | Secondary pressure filtering and water-removing device for residual dregs | |
| CN218644230U (en) | Soil unloading mechanism for cleaning earthwork in rotary drilling rig barrel drill | |
| CN214787276U (en) | Bailing bucket convenient to cleaning work |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200901 Address after: 230022 west section of south two ring road, Hefei, Anhui province (South Jinzhai Road West) Applicant after: THE 4TH CONSTRUCTION ENGINEERING CO., LTD. OF CHINA RAILWAY NO.4 ENGINEERING Group Applicant after: Changzhou Hongye Basic Engineering Co.,Ltd. Applicant after: CHINA TIESIJU CIVIL ENGINEERING GROUP Co.,Ltd. Address before: 230022 West Section of South Second Ring Road, Shushan District, Hefei City, Anhui Province (West Jinzhai South Road) Applicant before: THE 4TH CONSTRUCTION ENGINEERING CO., LTD. OF CHINA RAILWAY NO.4 ENGINEERING Group Applicant before: Changzhou Hongye Basic Engineering Co.,Ltd. |