CN108533181A - Special drill bit for hard rocks - Google Patents
Special drill bit for hard rocks Download PDFInfo
- Publication number
- CN108533181A CN108533181A CN201810207462.9A CN201810207462A CN108533181A CN 108533181 A CN108533181 A CN 108533181A CN 201810207462 A CN201810207462 A CN 201810207462A CN 108533181 A CN108533181 A CN 108533181A
- Authority
- CN
- China
- Prior art keywords
- cooling
- water
- water duct
- block
- duct
- 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.)
- Granted
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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 DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/44—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
- E21B10/602—Drill bits characterised by conduits or nozzles for drilling fluids the bit being a rotary drag type bit with blades
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 kind of Special drill bit for hard rocks, the present invention includes drillstock and drill body, the drill body includes at least two groups spiral cutter head, all spiral cutter heads are fixedly connected in the front side of drillstock, it is provided with cooling-water duct in the middle part of the drillstock, the cooling-water duct runs through the both ends of drillstock length direction, one end of the close drill body of the cooling-water duct is provided with passage switching device, when supplying water in cooling-water duct, the cooling-water duct is connected to outside, when not supplying water in cooling-water duct, the passage switching device isolation cooling-water duct is connected to outside.When the present invention can supply water in cooling-water duct, cooling-water duct is set to be connected to outside by passage switching device, flow can be ejected on spiral cutter head, and when stopping supplying water, passage switching device sealed cooling water passageway avoids dust from entering in cooling-water duct and causes to block.
Description
Technical field
The present invention relates to drilling fields, and in particular to a kind of Special drill bit for hard rocks.
Background technology
At present in coal production, is crept into using old-fashioned drill bit, encounter middle hard coal seam, it is cold because of bit body no-cooling-water channel
But water can not cool down drill bit, cause drill bit easily to be burnt, influence drilling life of bit.
Application No. is 201020197914 Chinese patent application files to disclose a kind of Special drill bit for hard rocks, front
Drill body is connected with the drillstock of tail portion, and drill body is two wings structure, has cooling-water duct (3) in the middle part of drill body (2) and drillstock (5),
Cooled down to drill bit by the way that cooling water channel is arranged, but when exploiting soft matchmaker layer using the drill bit, need not be supplied water or only
Need to be spaced water supply cooling can meet demand, the drill bit do not supply water use when the dust coal cinder to be formed that drills can enter cooling
In aquaporin, the obstruction of cooling-water duct can be caused when serious.
Invention content
The technical problem to be solved by the present invention is to：A kind of Special drill bit for hard rocks for avoiding cooling-water duct from blocking is provided.
To solve the above-mentioned problems, the present invention includes drillstock and drill body, and the drill body includes at least two groups spiral cutter head,
All spiral cutter heads, which are fixedly connected in the middle part of the front side of drillstock, the drillstock, is provided with cooling-water duct, and described is cold
But aquaporin runs through the both ends of drillstock length direction, and one end of the close drill body of the cooling-water duct is provided with passage switching
Device, when supplying water in cooling-water duct, the cooling-water duct is connected to outside, when not supplying water in cooling-water duct,
The passage switching device isolation cooling-water duct is connected to outside.
As an optimization, passage switching device of the present invention includes central tube and sliding block, and the central tube is logical
It crosses holder to be fixedly connected in cooling-water duct, the sliding block is slidably arranged in central tube along the axial direction of central tube
On, sliding block includes external block, intermediate conical section and internal linkage section, and the outer diameter and cooling water of the external block are logical
The aperture in road is equal, and the outer diameter of the inside linkage section is less than the aperture of cooling-water duct, the outer wall upper edge center of central tube
The axial direction of pipe is provided with two symmetrical slideways, is slided in central tube and is provided with sliding panel, the sliding block
Internal linkage section is fixedly connected across slideway with sliding panel, and spring, center are provided between sliding panel and the bottom of central tube
Pipe is internally provided with limited block, and when cooling-water duct is in the state not supplied water, the sliding block is fully located at
In cooling-water duct, when cooling-water duct is in service position, the external block is fully located at the outer of cooling-water duct
Side, and the length of sliding block stretching is less than the one third of circular knife grease head highness, the spring is in compressive state.
As an optimization, holder of the present invention includes interior connection ring and several ribs for being connected in interior connection ring, institute
Circumferential direction of some ribs along interior connection ring is uniformly distributed, and the end of rib is fixedly connected in the inside of cooling-water duct
On wall, the central tube is fixedly connected in interior connection ring.
As an optimization, drillstock of the present invention includes ten fields of cylindrical section and connection, and the drill body is connected to cylinder
Duan Shang, and the spiral plate for discharge is provided on cylindrical section, it is provided with U-shaped connection card slot in ten field of connection.
As an optimization, be provided with several exhalant canals on sliding block of the present invention, the exhalant canal into
The mouth of a river is located on intermediate conical section, and the water outlet of exhalant canal is located on the side wall of external block, and the water outlet of exhalant canal
It is provided with the snapping plate of arc positioned at external block close to one end of drill body, and on the outside of water outlet, the one of the snapping plate
End is hinged on the lateral wall of external block, and is provided with torsional spring between snapping plate and external block, when the complete position of external block
When in cooling-water duct, the snapping plate is tightly attached on the outer wall of external block, and the torsional spring is in compressive state.
As an optimization, the water outlet axis direction on external block of the present invention and the central axis of external block are in
Certain angle, the angle are acute angle.
As an optimization, the front of spiral cutter head of the present invention is provided with cutting edge, and the cutting edge is to be welded on
Trapezoidal plated film alloy on spiral cutter head.
The beneficial effects of the invention are as follows：The resistance target drill of the present invention is when cooling-water duct is in service position, water
Stream impact-sliding block moves out, until when the elastic force of water flow pressure and spring is in equilibrium state, sliding block stops fortune
Dynamic, the external block is fully located at the outside of cooling-water duct, and flow passes through between intermediate conical section and cooling-water duct
Gap outflow, flow in umbrella spray, be just injected on spiral cutter head, facilitate cool down to spiral cutter head, work as water supply
When stopping, sliding block is again pushed into cooling-water duct by the elastic force of spring, isolation cooling-water duct connects with outside
It is logical, avoid dust from entering in cooling-water duct.When the present invention can supply water in cooling-water duct, pass through passage switching device
Cooling-water duct is set to be connected to outside, flow can be ejected on spiral cutter head, and when stopping supplying water, passage switching device envelope
Cooling-water duct is closed, avoids dust from entering in cooling-water duct and causes to block.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural schematic diagram of the passage switching device of embodiment one；
Fig. 3 is the opening state schematic diagram of the channel switch device of embodiment one；
Fig. 4 is the structural schematic diagram of the passage switching device of embodiment two；
Fig. 5 is opening state schematic diagram of the passage switching device of embodiment two in low hydraulic pressure.
Wherein：1, cutting edge, 2, spiral cutter head, 3, cylindrical section, 4, spiral plate, 5, ten fields of connection, 6, cooling-water duct,
7, sliding block, 8, spring, 9, sliding panel, 10, central tube, 11, holder, 12, snapping plate, 13, exhalant canal, 5-1, connection card
Slot, 7-1, external block, 7-2, intermediate conical section, 7-3, internal linkage section, 10-1, slideway.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.Therefore, below to the reality of the present invention provided in the accompanying drawings
The detailed description for applying example is not intended to limit the range of claimed invention, but is merely representative of the selected implementation of the present invention
Example.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without creative efforts
Every other embodiment, shall fall within the protection scope of the present invention.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
In the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, or be somebody's turn to do
Invention product using when the orientation or positional relationship usually put, be merely for convenience of description of the present invention and simplification of the description, without
It is instruction or implies that signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore not
It can be interpreted as limitation of the present invention.In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, and cannot manage
Solution is instruction or implies relative importance.
Embodiment one
Special drill bit for hard rocks as shown in Figure 1, including drillstock and drill body, the drill body include at least two groups spiral cutter head 2,
All spiral cutter heads 2 are fixedly connected in the front side of drillstock, and the front of the spiral cutter head 2 is provided with cutting edge 1, described
Cutting edge 1 is the trapezoidal plated film alloy being welded on spiral cutter head 2.The drillstock includes ten fields 5 of cylindrical section 3 and connection,
The drill body is connected on cylindrical section 3, and the spiral plate 4 for discharge is provided on cylindrical section 3, ten field of connection
U-shaped connection card slot 5-1 is provided on 5, ten field 5 of connection and connection card slot 5-1 are for connecting extension arm.It is described
Drillstock in the middle part of be provided with cooling-water duct 6, the cooling-water duct 6 runs through the both ends of drillstock length direction, described
One end of the close drill body of cooling-water duct 6 is provided with passage switching device, and when supplying water in cooling-water duct 6, described is cold
But aquaporin 6 is connected to outside, and when not supplying water in cooling-water duct 6, the passage switching device completely cuts off cooling-water duct 6
It is connected to outside.
As shown in Figures 2 and 3, the passage switching device described in the present embodiment includes central tube 10 and sliding block 7, described
Central tube 10 be fixedly connected in cooling-water duct 6 by holder 11, the sliding block 7 is along the axial direction side of central tube 10
To being slidably arranged on central tube 10, sliding block 7 includes external block 7-1, centre conical section 7-2 and internal linkage section 7-3,
The outer diameter of the external block 7-1 is equal with the aperture of cooling-water duct 6, and the outer diameter of the inside linkage section 7-3 is less than
The axial direction in the aperture of cooling-water duct 6, the outer wall upper edge central tube 10 of central tube 10 is provided with two symmetrical slideways
10-1, in central tube 10 sliding be provided with sliding panel 9, the inside linkage section 7-3 of the sliding block 7 pass through slideway 10-1 with
Sliding panel 9 is fixedly connected, and spring 8 is provided between sliding panel 9 and the bottom of central tube 10, and central tube 10 is internally provided with
Limited block, limited block are used for the extreme position of limit slippage plate 9 slid inward, do not supply water when cooling-water duct 6 is in
When state, the sliding block 7 is fully located in cooling-water duct 6, when cooling-water duct 6 is in service position, flow
Impact-sliding block 7 moves out, until when water flow pressure and the elastic force of spring 8 are in equilibrium state, sliding block 7 stops fortune
Dynamic, the external block 7-1 is fully located at the outside of cooling-water duct 6, and flow is logical by intermediate conical section 7-2 and cooling water
Gap outflow between road 6, flow umbrella is sprayed, is just injected on spiral cutter head 2, convenient to cool down to spiral cutter head 2.
And the length that sliding block 7 stretches out makees probing when sliding block 7 being avoided to stretch out less than the one third of 2 height of spiral cutter head
Industry has an impact, and the spring 8 is in compressive state.The holder 11 includes interior connection ring and is connected in interior connection ring
Several ribs, circumferential direction of all ribs along interior connection ring be uniformly distributed, and the end of rib is fixedly connected with cold
But on the madial wall of aquaporin 6, the central tube 10 is fixedly connected in interior connection ring.
Embodiment two
As shown in Figure 4 and Figure 5, the present embodiment is compared with embodiment one, main difference is that：It is set on the sliding block 7
Several exhalant canals 13 are equipped with, the water inlet of the exhalant canal 13 is located on intermediate conical section 7-2, and exhalant canal 13 goes out
The mouth of a river is located on the side wall of external block 7-1, and the water outlet of exhalant canal 13 is located at external block 7-1 close to the one of drill body
End, and the snapping plate 12 of arc is provided on the outside of water outlet, one end of the snapping plate 12 is hinged on external block 7-1's
On lateral wall, and it is provided with torsional spring between snapping plate 12 and external block 7-1, led to when external block 7-1 is fully located at cooling water
When in road 6, the snapping plate 12 is tightly attached on the outer wall of external block 7-1, and the torsional spring is in compressive state.Described
Water outlet axis direction and the central axis of external block on external block 7-1 is in a certain angle, and the angle is acute angle,
I.e. water outlet is tilted to the direction of spiral cutter head 2.
The present embodiment, if collecting soft matchmaker's layer, does not need increased water flow and is cooled down when being cooled down to cutter head, can
It is passed through a small amount of cooling water into cooling cooling-water duct 6, the hydraulic pressure of cooling water is relatively low, and cooling water pushes sliding block 7 outside
Mobile a certain distance, until being in equilibrium state with spring 8, since hydraulic pressure is relatively low, external block 7-1 cannot be completely moved to cold
But outside aquaporin 6, but snapping plate 12 moves to outside cooling-water duct 6, and flow is ejected by exhalant canal 13 on spiral cutter head 2.
When hard coal seam in cutting, big yield is perfused into cooling-water duct 6, as one mode of embodiment is cooled down.According to operating mode into
Row selection is supplied water, and water resource can be effectively saved.
Above-mentioned specific implementation mode is only the specific case of the present invention, and scope of patent protection of the invention includes but not limited to
The product form and style of above-mentioned specific implementation mode, any claims of the present invention and any technical field of meeting
The appropriate changes or modifications that those of ordinary skill does it, all shall fall within the protection scope of the present invention.
Claims (7)
1. a kind of Special drill bit for hard rocks, including drillstock and drill body, the drill body includes at least two groups spiral cutter head, all spiral shells
Rotary knife head, which is fixedly connected in the middle part of the front side of drillstock, the drillstock, is provided with cooling-water duct, and the cooling water is logical
Road runs through the both ends of drillstock length direction, it is characterised in that：One end of the close drill body of the cooling-water duct is provided with logical
Road opening and closing device, when supplying water in cooling-water duct, the cooling-water duct is connected to outside, when not supplied in cooling-water duct
When water, the passage switching device completely cuts off cooling-water duct and is connected to outside.
2. Special drill bit for hard rocks according to claim 1, it is characterised in that：The passage switching device includes center
Pipe and sliding block, the central tube, which is fixed by the bracket, to be connected in cooling-water duct, and the sliding block is along center
The axial direction of pipe is slidably arranged on central tube, and sliding block includes external block, intermediate conical section and internal linkage section, institute
The outer diameter for the external block stated is equal with the aperture of cooling-water duct, and the outer diameter of the inside linkage section is less than cooling-water duct
Aperture, the axial direction of the outer wall upper edge central tube of central tube is provided with two symmetrical slideways, in central tube sliding set
It is equipped with sliding panel, the inside linkage section of the sliding block is fixedly connected across slideway with sliding panel, and sliding panel and center
Spring is provided between the bottom of pipe, central tube is internally provided with limited block, when cooling-water duct is in the shape not supplied water
When state, the sliding block is fully located in cooling-water duct, when cooling-water duct is in service position, the outside
Block is fully located at the outside of cooling-water duct, and the length of sliding block stretching is less than the one third of circular knife grease head highness,
The spring is in compressive state.
3. Special drill bit for hard rocks according to claim 2, it is characterised in that：The holder includes interior connection ring and company
Several ribs being connected in interior connection ring, circumferential direction of all ribs along interior connection ring are uniformly distributed, the end of rib
It is fixedly connected on the madial wall of cooling-water duct, the central tube is fixedly connected in interior connection ring.
4. Special drill bit for hard rocks according to claim 1, it is characterised in that：The drillstock includes cylindrical section and connection
Ten fields, the drill body are connected on cylindrical section, and the spiral plate for discharge is provided on cylindrical section, the connection ten
U-shaped connection card slot is provided in field.
5. according to the Special drill bit for hard rocks described in any one of claim 2-4, it is characterised in that：The sliding block
On be provided with several exhalant canals, the water inlet of the exhalant canal is located on intermediate conical section, the water outlet of exhalant canal
On the side wall of external block, and the water outlet of exhalant canal is located at external block close to one end of drill body, and water outlet
Outside is provided with the snapping plate of arc, and one end of the snapping plate is hinged on the lateral wall of external block, and snapping plate with
It is provided with torsional spring between external block, when external block is fully located in cooling-water duct, the snapping plate is tightly attached to outer
On the outer wall of portion's block, the torsional spring is in compressive state.
6. Special drill bit for hard rocks according to claim 5, it is characterised in that：Water outlet axis on the external block
Line direction and the central axis of external block are in a certain angle, and the angle is acute angle.
7. Special drill bit for hard rocks according to claim 6, it is characterised in that：The front of the spiral cutter head is provided with
Cutting edge, the cutting edge are the trapezoidal plated film alloy being welded on spiral cutter head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810207462.9A CN108533181B (en) | 2018-03-14 | 2018-03-14 | Special drill bit for hard rocks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810207462.9A CN108533181B (en) | 2018-03-14 | 2018-03-14 | Special drill bit for hard rocks |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108533181A true CN108533181A (en) | 2018-09-14 |
| CN108533181B CN108533181B (en) | 2019-09-17 |
Family
ID=63483810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810207462.9A Active CN108533181B (en) | 2018-03-14 | 2018-03-14 | Special drill bit for hard rocks |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108533181B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882079A (en) * | 2019-03-15 | 2019-06-14 | 邹城兖矿泰德工贸有限公司 | Spiral alloy bit |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201687393U (en) * | 2010-05-11 | 2010-12-29 | 邹城兖矿泰德工贸有限公司 | Special drill bit for hard rocks |
| CN201908577U (en) * | 2010-11-02 | 2011-07-27 | 武汉亿斯达工具有限公司 | Anti-blocking type diamond bit |
| CN204609784U (en) * | 2015-04-21 | 2015-09-02 | 李定启 | A kind of soft seam setting of casing locking-type combined drill |
| CN204663402U (en) * | 2015-04-23 | 2015-09-23 | 王爱丽 | Anti-silt plug-hole geological drill bit |
| CN205063831U (en) * | 2015-10-16 | 2016-03-02 | 贾建伟 | Prevent stifled diamond compact piece drill bit |
| CN207620728U (en) * | 2017-12-12 | 2018-07-17 | 邹城兖矿泰德工贸有限公司 | Diamond coated drill bit |
-
2018
- 2018-03-14 CN CN201810207462.9A patent/CN108533181B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201687393U (en) * | 2010-05-11 | 2010-12-29 | 邹城兖矿泰德工贸有限公司 | Special drill bit for hard rocks |
| CN201908577U (en) * | 2010-11-02 | 2011-07-27 | 武汉亿斯达工具有限公司 | Anti-blocking type diamond bit |
| CN204609784U (en) * | 2015-04-21 | 2015-09-02 | 李定启 | A kind of soft seam setting of casing locking-type combined drill |
| CN204663402U (en) * | 2015-04-23 | 2015-09-23 | 王爱丽 | Anti-silt plug-hole geological drill bit |
| CN205063831U (en) * | 2015-10-16 | 2016-03-02 | 贾建伟 | Prevent stifled diamond compact piece drill bit |
| CN207620728U (en) * | 2017-12-12 | 2018-07-17 | 邹城兖矿泰德工贸有限公司 | Diamond coated drill bit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882079A (en) * | 2019-03-15 | 2019-06-14 | 邹城兖矿泰德工贸有限公司 | Spiral alloy bit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108533181B (en) | 2019-09-17 |
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Denomination of invention: Special bit for rock resistance Effective date of registration: 20211222 Granted publication date: 20190917 Pledgee: Bank of China Limited Zoucheng sub branch Pledgor: ZOUCHENG YANKUANG TAIDE INDUSTRY & TRADE Co.,Ltd. Registration number: Y2021980015741 |
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| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 273500 west of middle section of West Outer Ring Road, Zoucheng City, Jining City, Shandong Province Patentee after: Shandong Yanneng Taide Heavy Industry Co.,Ltd. Address before: 272000 West Section of West Outer Ring Road, Zoucheng City, Jining City, Shandong Province Patentee before: ZOUCHENG YANKUANG TAIDE INDUSTRY & TRADE Co.,Ltd. |