CN115370309A - Spraying device for drill bit - Google Patents
Spraying device for drill bit Download PDFInfo
- Publication number
- CN115370309A CN115370309A CN202211081963.XA CN202211081963A CN115370309A CN 115370309 A CN115370309 A CN 115370309A CN 202211081963 A CN202211081963 A CN 202211081963A CN 115370309 A CN115370309 A CN 115370309A
- Authority
- CN
- China
- Prior art keywords
- drill bit
- spraying
- shaft
- spray
- rod
- 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.)
- Withdrawn
Links
- 238000005507 spraying Methods 0.000 title claims abstract description 47
- 239000007921 spray Substances 0.000 claims abstract description 50
- 230000005540 biological transmission Effects 0.000 claims abstract description 34
- 238000005553 drilling Methods 0.000 claims abstract description 27
- 238000004140 cleaning Methods 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000007906 compression Methods 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 2
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 2
- 241001330002 Bambuseae Species 0.000 claims description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 2
- 239000011425 bamboo Substances 0.000 claims description 2
- 239000000428 dust Substances 0.000 abstract description 17
- 230000000694 effects Effects 0.000 abstract description 12
- 238000010276 construction Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/01—Arrangements for handling drilling fluids or cuttings outside the borehole, e.g. mud boxes
- E21B21/011—Dust eliminating or dust removing while drilling
- E21B21/013—Dust eliminating or dust removing while drilling by liquids
- E21B21/0135—Liquid flushing installations
-
- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/01—Arrangements for handling drilling fluids or cuttings outside the borehole, e.g. mud boxes
- E21B21/011—Dust eliminating or dust removing while drilling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a spraying device for a drill bit, and relates to the technical field of rotary drilling rigs. The drilling tool comprises a movable support rod and a drill bit, wherein the movable support rod is connected with two rotating rods, the rotating rods are connected with a spraying cover plate, the spraying cover plate is connected with a semicircular ring plate, and the semicircular ring plate is connected with a semicircular ring rack; the spraying cover plate is connected with a spraying pipe; the top wall of the drill bit is rotationally connected with a transmission shaft, the upper end of the transmission shaft is connected with a driven wheel, and the lower end of the transmission shaft is connected with a driving wheel; a cleaning disc is rotationally connected in the drill bit; the cleaning disc is connected with an inner gear ring meshed with the driving wheel, and the lower surface of the cleaning disc is connected with a scraper through a vertical rod. According to the invention, the two spraying cover plates are spliced into the spraying cover cylinder to seal the drilled hole, and the spraying pipe is used for spraying, so that the spraying and dust removing effects are effectively improved; utilize from driving wheel and ring gear meshing, drive the rotation of clearance dish through transmission shaft and drive wheel, utilize the scraper blade to clear up the drill bit inner wall, guaranteed the drilling efficiency of drill bit, improved spray set's practicality.
Description
Technical Field
The invention belongs to the technical field of rotary drilling rigs, and particularly relates to a spraying device for a drill bit.
Background
The rotary drilling machine is a comprehensive drilling machine, and can be used for dry drilling operation by using a short spiral drill bit, wet drilling operation under the condition of slurry retaining wall by using a rotary drill bit, and drilling operation after a hard stratum is drilled by matching with a hammer. When the drill bit initially contacts the ground to drill a hole, a large amount of dust is generated by the friction between the rotating drill bit and the ground.
Like chinese utility model CN202220518353.0, discloses a spray set for drill bit, spray mechanism sets up on the drilling rod of digging the rig soon, including support body, a plurality of shower nozzles and water supply mechanism. The water supply mechanism is used for providing water sources for all spray heads, so that the uniformly arranged spray heads spray the drill bit, and the generated raise dust is sprayed to the greatest extent, so that the harm to a human body is reduced.
However, the spray head of the technical scheme is positioned above the drill hole, and part of the raised dust still overflows in the spraying process, so that the raised dust cannot be thoroughly blocked and overflows from the drill hole, the spraying and dust removing effect is poor, and if the dust removing effect needs to be improved, the water spraying amount needs to be increased, so that the waste of water resources is caused.
Meanwhile, in the construction operation process of the rotary drilling rig, the drill bit can be attached to a large amount of soil sundries and the like, if the drill bit is not cleaned in time or is not cleaned thoroughly, the drilling effect and the drilling efficiency of the drill bit can be influenced, the existing spraying device does not have a cleaning function, and the function is single, so that the whole practicability is poor.
Disclosure of Invention
The invention aims to provide a spraying device for a drill bit, which is characterized in that two spraying cover plates are spliced into a complete spraying cover cylinder to seal a drilled hole, and a spraying pipe is used for spraying, so that the problem of poor spraying and dust removing effects in the prior art is solved; utilize from driving wheel and ring gear meshing, drive the drive wheel through the transmission shaft and rotate, drive the scraper blade through the clearance dish and clear up the drill bit inner wall, solved current spray set function singleness, the poor problem of practicality.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a spray device for a drill bit, which comprises a movable support rod, a drill rod and the drill bit connected to the lower end of the drill rod, wherein the lower end of the movable support rod is rotatably connected with two rotating rods; the rotating rod is in transmission connection with a driving device and is used for enabling the two spraying cover plates to be spliced into a complete spraying cover cylinder through the rotation of the rotating rod, and the two semi-circular racks are spliced into a complete gear ring; the inner walls of the two spraying cover plates are connected with a plurality of spraying pipes, and the plurality of spraying pipes are connected with a water inlet pipe; the transmission shaft penetrates through the top wall of the drill bit, the upper end of the transmission shaft is fixedly connected with a driven wheel meshed with the gear ring, and the lower end of the transmission shaft is fixedly connected with a transmission wheel; a cleaning disc is rotationally connected in the drill bit; the upper surface of the cleaning disc is fixedly connected with an inner gear ring meshed with the driving wheel, the lower surface of the cleaning disc is fixedly connected with a plurality of vertical rods, and the cleaning disc is connected with a scraper attached to the inner wall of the drill bit through the vertical rods.
The drill rod drives the drill bit to rise and enter a complete spraying cover cylinder formed by splicing two spraying cover plates, the driven wheel is meshed with the gear ring by rotating the drill bit, and the transmission wheel is driven to rotate through the transmission shaft, so that the cleaning disc rotates, and the inner wall of the drill bit is cleaned through the scraper.
As a preferred technical scheme of the invention, the transmission shaft comprises a lower shaft which is rotationally connected with the top wall of the drill bit, and the transmission wheel is connected with the lower end of the lower shaft; the upper end of the lower shaft is provided with a blind hole, a spring is arranged in the blind hole, an upper shaft is sleeved on the blind hole, the lower end of the upper shaft abuts against the spring, and the upper shaft is connected with the inner wall of the blind hole through a sliding key; the driven wheel is connected with the upper end of the upper shaft.
As a preferred technical scheme of the invention, the scraper is fixedly connected with a plurality of pin shafts and movably and alternately connected with the vertical rod through the pin shafts; the pin shaft is sleeved with a compression spring, and the compression spring is located between the scraper and the vertical rod and used for enabling the scraper to be tightly attached to the inner wall of the drill bit.
As a preferred technical scheme of the invention, a plurality of vertical rods are uniformly distributed on the circumference.
As a preferred technical scheme of the invention, the spray pipes are uniformly distributed along the inner wall of the spray cover plate, and the length of each spray pipe is more than or equal to that of the drill bit.
As a preferred technical scheme of the invention, the semicircular ring plate is connected with a rubber sheet for sealing a through hole formed between the two semicircular ring plates when the two spray cover plates are spliced.
As a preferable technical scheme of the invention, the two rotating rods are symmetrically arranged relative to the movable supporting rod.
As a preferred technical solution of the present invention, the rotating rod is rotatably connected with a driving shaft; the driving shaft is connected with the driving device, and two ends of the driving shaft are respectively in transmission connection with the two rotating rods and used for synchronously driving the two rotating rods to rotate.
The invention has the following beneficial effects:
1. according to the invention, the two spraying cover plates are spliced into a complete spraying cover cylinder, the spraying cover cylinder is used for sealing the drilled hole of the spraying cover cylinder, and the spraying pipe is used for spraying, so that the overflow of raised dust is avoided, and the spraying dust removal effect and the dust removal efficiency are effectively improved.
2. According to the invention, the driven wheel is meshed with the gear ring, the transmission shaft drives the transmission wheel to rotate by utilizing the rotation of the drill bit, and the cleaning disc drives the scraper to clean the inner wall of the drill bit, so that the condition that the drill bit is attached with soil sundries is avoided, the drilling effect and the drilling efficiency of the drill bit are ensured, and the overall practicability of the spraying device is further improved.
Of course, it is not necessary for any product to practice the invention to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of a spray device for a drill bit according to the present invention;
FIG. 2 is a front view of the structure of FIG. 1;
FIG. 3 is a schematic view of the bottom view of FIG. 1;
FIG. 4 isbase:Sub>A cross-sectional view taken at A-A of FIG. 2;
FIG. 5 is an enlarged view of the structure of the part B in FIG. 4;
FIG. 6 is a schematic view of the construction of the drill bit;
FIG. 7 is a half sectional view of the drill bit;
FIG. 8 is a schematic structural view of a shower enclosure;
FIG. 9 is a schematic view of a configuration of a shower plate;
FIG. 10 is a schematic view of a cleaning disc;
in the drawings, the reference numbers indicate the following list of parts:
1-support rod, 2-drill rod, 3-drill bit, 4-spray cover cylinder, 5-cleaning disc, 101-rotating rod, 102-connecting rod, 103-spray cover plate, 104-semicircular ring plate, 105-semicircular ring rack, 106-spray pipe, 107-water inlet pipe, 108-driving shaft, 301-driven wheel, 302-driving wheel, 303-lower shaft, 304-spring, 305-upper shaft, 501-inner gear ring, 502-vertical rod, 503-scraper, 504-pin shaft and 505-compression spring.
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.
In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship merely to facilitate description of the invention and to simplify the description, and are not intended to indicate or imply that the referenced components or elements must be in a particular orientation, constructed and operative in a particular orientation, and are not to be construed as limiting the invention.
Example one
Referring to fig. 1 to 3, the present invention is a spray device for a drill bit, including a movable support rod 1, a drill rod 2, and a drill bit 3 connected to a lower end of the drill rod 2, wherein the lower end of the movable support rod 1 is rotatably connected with two rotating rods 101, both the two rotating rods 101 are connected with spray cover plates 103 through connecting rods 102, the upper ends of both the two spray cover plates 103 are welded with semicircular ring plates 104, and the lower surfaces of both the two semicircular ring plates 104 are welded or screwed with semicircular ring racks 105.
The rotating rod 101 is connected with a driving device in a transmission manner, wherein the two rotating rods 101 are symmetrically arranged relative to the movable supporting rod 1. Dwang 101 rotates and is connected with drive shaft 108, and drive shaft 108 is connected with drive arrangement, and drive arrangement is the motor, is connected with drive shaft 108 transmission through gear drive, and drive shaft 108 both ends respectively with two dwang 101 transmission connection, accessible worm gear transmission or gear revolve between drive shaft 108 and dwang 101 for two dwang 101 rotations of synchronous drive.
As shown in fig. 8 and 9, the rotating rod 101 rotates, so that the two shower cover plates 103 are spliced into a complete shower cover cylinder 4, the two semicircular racks 105 are spliced into a complete gear ring, the shower cover cylinder 4 is coaxial with the drill bit 3, and the inner diameter is larger than the outer diameter of the drill bit 3. The inner walls of the two shower cover plates 103 are connected with four to six shower pipes 106, the four to six shower pipes 106 are connected with a water inlet pipe 107, and the water inlet pipe 107 penetrates through the semicircular ring plate 104 and is used for being connected with the pump body through a water pipe, so that water flow is injected into each shower pipe 106 by the pump body, and a plurality of spray heads connected through the side walls of the shower pipes 106 are sprayed out.
During drilling, two spray cover plates 103 are spliced into a complete spray cover cylinder 4 and cover the port of the drilling hole, the through hole formed in the center of the drill rod 2 after the two semicircular ring plates 104 are spliced passes through, the drilling hole of the spray cover cylinder 4 is sealed, raised dust is prevented from overflowing, the spray pipe 106 is used for spraying, and therefore the spray dust removal effect and the dust removal efficiency are effectively improved.
When the drill bit 3 needs to be moved out, the two rotating rods 101 are driven by the driving device, so that the two spraying cover plates 103 are separated towards two sides, and the drill bit 3 can pass through upwards.
As shown in fig. 4 to 6, the top wall of the drill bit 3 is rotatably connected with a transmission shaft, the transmission shaft penetrates through the top wall of the drill bit 3, the upper end of the transmission shaft is fixedly connected with a driven wheel 301 engaged with the gear ring, and the lower end of the transmission shaft is fixedly connected with a driving wheel 302.
As shown in fig. 7, 8 and 10, a cleaning disc 5 is rotatably connected in the drill bit 3, an inner gear ring 501 engaged with the driving wheel 302 is welded or screwed on the upper surface of the cleaning disc 5, two to six vertical rods 502 are fixedly connected on the lower surface of the cleaning disc 5, and a scraper 503 attached to the inner wall of the drill bit 3 is connected through the vertical rods 502.
When the drill bit 3 needs to be cleaned, the drill bit 3 is driven by the drill rod 2 to ascend and enter a complete spray cover cylinder 4 formed by splicing two spray cover plates 103, and at the moment, the driven wheel 301 is meshed with the semicircular rack 105.
Through rotating drill bit 3, utilize the ring gear meshing of splicing from driving wheel 301 and two semicircle ring racks 105, make from driving wheel 301 along the ring gear roll, thereby it rotates to drive wheel 302 through the transmission shaft, drive wheel 302 drives ring gear 501 with it meshing and rotates, make clearance dish 5 rotate, thereby clear up 3 inner walls of drill bit through scraper blade 503, the condition of having avoided drill bit 3 to adhere to earth debris takes place, thereby the drilling effect and the drilling efficiency of drill bit 3 have been guaranteed, make the holistic practicality of spray set obtain further improvement.
Wherein, shower 106 sets up along spraying cover plate 103 inner wall equipartition for more evenly improve when spraying and guarantee dust removal effect, and the length more than or equal to drill bit 3 of shower 106, make when clearance drill bit 3, accessible shower 106 sprays, realize the washing to the 3 outer walls of drill bit, the length more than or equal to drill bit 3's of shower 106 length, make the rivers that spray can cover the outer wall of whole drill bit 3, improve cleaning performance.
And, semicircle ring plate 104 is connected with the sheet rubber for when two spray cover plate 103 splices, seal the through-hole that forms between two semicircle ring plates 104, two spray cover plate 103 splices the back, the through-hole that drilling rod 2 formed by two semicircle ring plate 104 splices back center is walked, the sheet rubber is hugged closely with drilling rod 2 this moment, thereby make 4 inner walls of spray cover section of thick bamboo form enclosed construction, further avoid the dust in the drilling excessive, make dust removal effect obtain further improvement.
Example two
In the first embodiment, as shown in fig. 4 and 5, the driving shaft includes a lower shaft 303 rotatably connected to the top wall of the drilling head 3, and a driving wheel 302 is connected to the lower end of the lower shaft 303. The upper end of the lower shaft 303 is provided with a blind hole, a spring 304 is arranged in the blind hole, an upper shaft 305 is sleeved on the blind hole, the lower end of the upper shaft 305 abuts against the spring 304, the upper shaft 305 is connected with the inner wall of the blind hole through a sliding key, and axial limiting is carried out through a clamping spring. The driven wheel 301 is connected to the upper end of the upper shaft 305.
When the drill bit 3 ascends and the driven wheel 301 is not accurately meshed with the semicircular rack 105, the semicircular rack 105 compresses the driven wheel 301 along with the ascending of the drill bit 3, so that the upper shaft 305 is inserted into the blind hole, the driven wheel 301 has a certain buffer space, and along with the rotation of the drill bit 3, when the driven wheel 301 and the semicircular rack 105 are staggered in teeth, the driven wheel 301 moves upwards under the action of the spring 304, so that the driven wheel 301 and the semicircular rack 105 are meshed.
EXAMPLE III
On the basis of the first embodiment or the second embodiment, as shown in fig. 5, a plurality of pins 504 are welded to the scraper 503 along the length direction, and the pins 504 are movably inserted and connected with the vertical rods 502. The pin 504 is sleeved with a compression spring 505, the compression spring 505 is located between the scraper 503 and the vertical rod 502, and the scraper 503 is pushed by the compression spring 505, so that the scraper 503 is tightly attached to the inner wall of the drill bit 3, and the cleaning effect on the inner wall of the drill bit 3 is ensured. Wherein, two to six montants 502 become the circumference equipartition setting for the atress is more balanced when cleaning disc 5 rotates.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (8)
1. The utility model provides a spray set for drill bit, includes movable support rod (1), drilling rod (2) to and connect drill bit (3) in drilling rod (2) lower extreme, its characterized in that:
the lower end of the movable support rod (1) is rotatably connected with two rotating rods (101), the two rotating rods (101) are both connected with a spray cover plate (103) through a connecting rod (102), the upper ends of the two spray cover plates (103) are both connected with a semicircular ring plate (104), and the lower surfaces of the two semicircular ring plates (104) are both fixedly connected with semicircular ring racks (105);
the rotating rod (101) is in transmission connection with a driving device and used for enabling the two spraying cover plates (103) to be spliced into a complete spraying cover cylinder (4) through the rotation of the rotating rod (101), and the two semi-circular racks (105) are spliced into a complete gear ring; the inner walls of the two spraying cover plates (103) are connected with a plurality of spraying pipes (106), and the plurality of spraying pipes (106) are connected with a water inlet pipe (107);
the top wall of the drill bit (3) is rotatably connected with a transmission shaft, the transmission shaft penetrates through the top wall of the drill bit (3), the upper end of the transmission shaft is fixedly connected with a driven wheel (301) meshed with the gear ring, and the lower end of the transmission shaft is fixedly connected with a transmission wheel (302);
a cleaning disc (5) is rotationally connected in the drill bit (3); the upper surface of the cleaning disc (5) is fixedly connected with an inner gear ring (501) meshed with the driving wheel (302), the lower surface of the cleaning disc (5) is fixedly connected with a plurality of vertical rods (502), and the lower surface of the cleaning disc is connected with a scraper (503) attached to the inner wall of the drill bit (3) through the vertical rods (502);
through drilling rod (2) drive drill bit (3) rise and get into a complete spray cover section of thick bamboo (4) that two spray cover plates (103) splice, through rotating drill bit (3), utilize from driving wheel (301) and ring gear meshing, drive wheel (302) through the transmission shaft and rotate to make clearance dish (5) rotate, clear up drill bit (3) inner wall through scraper blade (503).
2. A spray device for drill bits according to claim 1 characterised in that the drive shaft comprises a lower shaft (303) rotatably connected to the top wall of the drill bit (3) and the drive wheel (302) is connected to the lower end of the lower shaft (303);
the upper end of the lower shaft (303) is provided with a blind hole, a spring (304) is arranged in the blind hole, an upper shaft (305) is sleeved on the blind hole, the lower end of the upper shaft (305) abuts against the spring (304), and the upper shaft (305) is connected with the inner wall of the blind hole through a sliding key; the driven wheel (301) is connected with the upper end of the upper shaft (305).
3. The spray device for the drill bit as claimed in claim 1 or 2, wherein the scraper (503) is fixedly connected with a plurality of pins (504) and movably connected with the vertical rod (502) in an inserting manner through the pins (504);
the pin shaft (504) is sleeved with a compression spring (505), and the compression spring (505) is located between the scraper (503) and the vertical rod (502) and used for enabling the scraper (503) to be tightly attached to the inner wall of the drill bit (3).
4. A spray device for drill bits according to claim 3 characterized in that said vertical rods (502) are arranged circumferentially and evenly.
5. The spray device for the drill bit according to claim 1, characterized in that the spray pipes (106) are uniformly distributed along the inner wall of the spray cover plate (103), and the length of the spray pipes (106) is greater than or equal to that of the drill bit (3).
6. The spray device for the drill bit as claimed in claim 1, wherein the semicircular plate (104) is connected with a rubber sheet for sealing the through hole formed between the two semicircular plates (104) when the two spray cover plates (103) are spliced.
7. The spray device for the drill bit according to claim 1, wherein the two rotating rods (101) are symmetrically arranged relative to the movable support rod (1).
8. The spray device for drill bits according to claim 7 is characterized in that the rotating rod (101) is rotatably connected with a driving shaft (108); the driving shaft (108) is connected with the driving device, and two ends of the driving shaft (108) are respectively in transmission connection with the two rotating rods (101) and used for synchronously driving the two rotating rods (101) to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211081963.XA CN115370309A (en) | 2022-09-06 | 2022-09-06 | Spraying device for drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211081963.XA CN115370309A (en) | 2022-09-06 | 2022-09-06 | Spraying device for drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115370309A true CN115370309A (en) | 2022-11-22 |
Family
ID=84069027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211081963.XA Withdrawn CN115370309A (en) | 2022-09-06 | 2022-09-06 | Spraying device for drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115370309A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116658097A (en) * | 2023-07-25 | 2023-08-29 | 济南临港建设集团有限公司 | Pile driver for constructional engineering |
-
2022
- 2022-09-06 CN CN202211081963.XA patent/CN115370309A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116658097A (en) * | 2023-07-25 | 2023-08-29 | 济南临港建设集团有限公司 | Pile driver for constructional engineering |
| CN116658097B (en) * | 2023-07-25 | 2023-10-13 | 济南临港建设集团有限公司 | Pile driver for constructional engineering |
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Application publication date: 20221122 |