CN213869731U - Rotary cutting type drill bit - Google Patents
Rotary cutting type drill bit Download PDFInfo
- Publication number
- CN213869731U CN213869731U CN202022715869.8U CN202022715869U CN213869731U CN 213869731 U CN213869731 U CN 213869731U CN 202022715869 U CN202022715869 U CN 202022715869U CN 213869731 U CN213869731 U CN 213869731U
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- China
- Prior art keywords
- rotary cutting
- drill
- blades
- cutting device
- outer barrel
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- 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.)
- Expired - Fee Related
Links
- 239000002689 soil Substances 0.000 abstract description 22
- 238000000034 method Methods 0.000 abstract description 14
- 238000005553 drilling Methods 0.000 abstract description 10
- 239000002002 slurry Substances 0.000 abstract description 5
- 241001074085 Scophthalmus aquosus Species 0.000 abstract 2
- 238000010276 construction Methods 0.000 description 9
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model provides a rotary cutting type drill bit, which comprises a drill bit body and a rotary cutting device coaxially connected with the drill bit body; the rotary cutting device comprises an outer barrel, the bottom end of the outer barrel is connected with the top end of the drill body, the outer barrel is of a cylindrical structure, and the rotary cutting device further comprises a plurality of transverse blades and a plurality of longitudinal blades, the transverse blades are circumferentially arranged along the outer side surface of the outer barrel, and the longitudinal blades are circumferentially arranged along the top surface of the outer barrel. The cutting edges of the transverse blade and the longitudinal blade face the rotating direction of the rotary cutting device. The utility model discloses a device takes place in the work progress when sudden accidents such as sticking the brill, brill bury, the reverse rotary-cut device rotary-cut soil body of accessible, plus upper portion is carried the hammer and is made the tup break away from the soil layer gradually, need not "ghost" dive, reduces economic loss, has guaranteed personnel's safety. The device of the utility model can be applied to the engineering of the slurry retaining wall type and the drilling of the dry operation method. Particularly, the method has a very good solution to the phenomena of drill sticking and the like in the slurry retaining wall type project.
Description
Technical Field
The utility model belongs to foundation engineering construction safety facility field, concretely relates to rotary-cut formula drill bit.
Background
The common drill bit is widely applied to various national public utilities such as pile foundation construction and drilling work of oil and natural gas as mechanical equipment. Taking pile foundation construction as an example, the function of the pile foundation is that the drill bit impacts, crushes and shears soil and rocks in the broken stratum during drilling to form a pile hole. In order to prevent hole collapse in the process of pile foundation construction, a slurry retaining wall bored pile is generally adopted in engineering construction. In the process of pile hole forming, if hard or uneven stratum is underground and a soil layer contains large cracks, the drill sticking phenomenon often occurs; the steel wire rope can be broken along with the pulling of the winch, the drill bit can fall off, even if the drill bit is not vertical in guiding and pile position deviation causes surrounding soil to collapse in the drilling process, the drill bit is buried in the soil, the drill bit needs to be fished up in the process, otherwise, construction failure causes huge loss, a professional diver needs to be called to launch for salvage when necessary, construction progress is slowed down, and 'ghost' submergence occurs, life of the diver is threatened, and major safety accidents are caused if the drill bit is improperly disposed.
Disclosure of Invention
To above-mentioned prior art not enough with the defect, the utility model aims to provide a rotary-cut formula drill bit solves the problem that the drill bit among the prior art can not in time be handled when getting into the in-process and appearing the sticking of tool or the entrance to a cave emergence accident of collapsing.
In order to achieve the purpose, the technical scheme is as follows: a rotary cutting type drill bit comprises a drill bit body and a rotary cutting device coaxially connected with the drill bit body;
the rotary cutting device comprises an outer barrel, the bottom end of the outer barrel is connected with the top end of the drill body, the outer barrel is of a cylindrical structure, the rotary cutting device further comprises a plurality of transverse blades and a plurality of longitudinal blades, the transverse blades are circumferentially arranged along the outer side surface of the outer barrel, the longitudinal blades are circumferentially arranged along the top surface of the outer barrel, and the cutting edges of the transverse blades and the longitudinal blades face the rotating direction of the rotary cutting device.
The utility model discloses still have following technical characteristic:
the longitudinal blades comprise a blade base connected with the top surface of the outer barrel, and a first longitudinal blade and a second longitudinal blade which are connected to the blade base, wherein the bottom ends of the first longitudinal blade and the second longitudinal blade are connected and are arranged in pairs at a certain angle with the horizontal plane;
the cutting edges of the first longitudinal blade and the second longitudinal blade face the rotating direction of the rotary cutting device; the first longitudinal blade, the second longitudinal blade and the transverse blade are all triangular prism-shaped structures.
The outer cylinder is of a hollow cylindrical structure, and the transverse blade is telescopic on the outer side surface of the outer cylinder.
The drill body and the rotary cutting device rotate independently.
The drill bit body comprises an inner container connected with the bottom end of the rotary cutting device and a plurality of drill blades connected to the lower end of the inner container, the inner container is of a cylindrical structure, and the drill blades are circumferentially arranged along the outer side of the lower end of the inner container.
The inner container is also sleeved with a drill body, and the drill body is connected with the top of the drill blade but is not contacted with the inner container.
The top of the rotary cutting device is also connected with a steel cable.
Compared with the prior art, the utility model, profitable technological effect is:
(I) the utility model discloses a device takes place the sticking in the work progress, when boring sudden accident such as burying, the reverse rotary-cut device rotary-cut soil body of accessible, and plus upper portion is carried the hammer and is made the tup break away from the soil layer gradually, need not "water ghost" and dives, reduces economic loss, has guaranteed personnel's safety.
(II) the device of the utility model can be applied to the engineering of a mud retaining wall type and can also be applied to the engineering of drilling by a dry operation method. Particularly, the method has a very good solution to the phenomena of drill sticking and the like in the slurry retaining wall type project.
(III) the utility model discloses an ann has the cable wire to come the balance on the device, and overall stability improves greatly, can reduce centrobaric skew, ensures that the construction can be accurate quick to creep into towards under, has reduced the sticking condition and has taken place.
(II) the utility model discloses a device simple structure easily manipulates, and the design is nimble changeable, has improved work efficiency, has reduced the expense, has reduced human cost's expenditure for the engineering progress.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a schematic top view of the present invention;
FIG. 4 is a schematic top view II of the present invention;
FIG. 5 is a schematic bottom structure of the present invention;
FIG. 6 is a schematic view of the working state of the present invention;
the meaning of the individual reference symbols in the figures is: 1-a drill bit body, 2-a rotary cutting device, 3-an outer cylinder, 4-a transverse blade, 5-a longitudinal blade, 6-a blade base, 7-a first longitudinal blade, 8-a second longitudinal blade, 9-an inner container, 10-a drill edge, 11-a drill body, 12-a steel cable, 13-a winch and 14-a bottom bin.
The following detailed description of the present invention will be made with reference to the accompanying drawings and examples.
Detailed Description
The following embodiments of the present invention are given, and it should be noted that the present invention is not limited to the following embodiments, and all the equivalent transformations made on the basis of the technical solution of the present application all fall into the protection scope of the present invention.
The utility model discloses an overall thought is, newly adds a rotary-cut device on original weight device, possesses the function of rotary-cut, if the drill bit card is buried at the bottom of the hole or the soil body sinks the drill bit at whole device drilling in-process, then the accessible remote control starts rotary-cut device, and the cutting drill bit upper portion soil body, cooperation cable wire promote the drill bit for the drill bit rises gradually until breaking away from the soil layer. The whole set of device has the advantages of strong practicability, simple operation, safety and reliability.
Example 1:
following the above technical solution, as shown in fig. 1 to fig. 6, the present embodiment provides a rotary-cut drill, including a drill body 1, and further including a rotary-cut device 2 coaxially connected to the drill body 1; the rotary cutting device 2 is used for cutting up surrounding soil and upper soil when a drill is stuck or soil collapses, so that the drill bit body 1 is out of the way. The direction of the arrow in fig. 1 is the direction of rotation of the device.
The rotary cutting device 2 comprises an outer barrel 3 with the bottom end connected with the top end of the drill bit body 1, the outer barrel 3 is of a cylindrical structure, and the rotary cutting device 2 further comprises a plurality of transverse blades 4 circumferentially arranged along the outer side surface of the outer barrel 3 and a plurality of longitudinal blades 5 circumferentially arranged along the top surface of the outer barrel 3. The cutting edges of the transverse blade 4 and the longitudinal blade 5 face the rotating direction of the rotary cutting device 2
When the drill is stuck, the rotary cutting device rotates to drive the transverse blade 4 and the longitudinal blade 5 to rotate, so as to cut up surrounding soil and upper soil, and the drill bit body 1 is made to get rid of difficulties. The transverse blades 4 are used to chop the surrounding soil and the longitudinal blades 5 are used to chop the soil above.
As a preference of this embodiment, the longitudinal blade 5 includes a blade base 6 connected to the top surface of the outer cylinder 3, and a first longitudinal blade 7 and a second longitudinal blade 8 connected to the blade base 6, and the bottom ends of the first longitudinal blade 7 and the second longitudinal blade 8 are connected and arranged in pairs at an angle with the horizontal plane; in this embodiment, the first longitudinal blade 7 faces the outside of the rotational cutting device 2, and the second longitudinal blade 8 faces the inside of the rotational cutting device 2.
The cutting edges of the first longitudinal blade 7 and the second longitudinal blade 8 face the rotating direction of the rotary cutting device 2; the first longitudinal blade 7, the second longitudinal blade 8 and the transverse blade 4 are all triangular prism-shaped structures. In this embodiment, the first longitudinal blade 7 and the second longitudinal blade 8 are respectively designed to form an angle of 45 degrees with the horizontal direction, that is, the included angle between the first longitudinal blade 7 and the second longitudinal blade 8 is 90 degrees, and the shearing force is large at this time, and the effect is the best.
As a preference of this embodiment, the outer cylinder 3 is of a hollow cylindrical structure, and the transverse blade 4 is retractable on the outer side of the outer cylinder 3. When the user does not need to get rid of the trouble, the transverse blade 4 can retract into the outer cylinder 3, so that unnecessary abrasion is avoided.
Preferably, the drill body 1 and the rotary cutting device 2 rotate independently. When the user needs to get rid of the trouble, the drill body 1 can be taken out of the trouble only by the rotary cutting device 2 without rotating.
As a preferred embodiment of the present invention, the drill body 1 includes an inner container 9 connected to the bottom end of the rotary cutting device 2, and a plurality of drill blades 10 connected to the lower end of the inner container 9, the inner container 9 is a cylindrical structure, and the drill blades 10 are circumferentially arranged along the outer side of the lower end of the inner container 9. The inner container 9 plays a role of bearing up and down and is a pivot for connecting the rotary cutting device 2 and the drill bit body 1. The upper end of the inner container 9 is connected with the rotary cutting device 2 in an occluded mode, and the lower end of the inner container is welded with the drill blade 10, so that when the rotary cutting device 2 rotates, the drill bit body 1 cannot rotate, and independence of the two devices is guaranteed. The most bottom of the drill edge 10 is provided with a plurality of grinding lines, so that the boulder encountered by the device in the drilling process can be easily broken, and the stable operation of drilling is ensured.
In a preferred embodiment of the present invention, the inner container 9 is further sleeved with a drill body 11, and the drill body 11 is connected with the top of the drill blade 10 but is not in contact with the inner container 9. The drill body 11 and the drill blade 10 are integrated to form a drill hammer, the drill blade 10 and the liner 9 are welded, the drill body 11 does not need to be in contact with the liner 9, and the diameter of the liner 9 is smaller than that of the drill body 11, so that the drill body 11 and the liner 9 cannot be in contact.
Preferably, the top of the rotary cutting device 2 is further connected with a steel cable 12. Is convenient to be connected with external equipment when in use.
The working process of the device is as follows:
the specific use steps of the invention are as follows:
the method comprises the following steps: as shown in fig. 6, after the installation is finished, the winch 13 is started to lift the device to a proper height and then fall down, and drilling is carried out on the preset hole of the slurry retaining wall.
Step two: if the device is stuck or soil body collapses in the drilling process, at the moment, managers control the transverse blades 4 and the longitudinal blades 5 of the rotary cutting device 2 to pop out of the device through wireless remote control, then the whole rotary cutting device 2 rotates to cut up the surrounding soil body and the upper soil body, the winch 13 works simultaneously to provide upward acting force for the device, and the whole device finally breaks away from the soil layer without submerging. Therefore, the life safety of constructors is ensured, the completeness of machinery is ensured, and the whole construction cannot suffer more serious additional loss.
Claims (7)
1. A rotary cutting type drill bit comprises a drill bit body (1) and is characterized by also comprising a rotary cutting device (2) coaxially connected with the drill bit body (1);
the rotary cutting device (2) comprises an outer barrel (3) with the bottom end connected with the top end of the drill body (1), the outer barrel (3) is of a cylindrical structure, the rotary cutting device (2) further comprises a plurality of transverse blades (4) arranged along the circumferential direction of the outer side surface of the outer barrel (3) and a plurality of longitudinal blades (5) arranged along the circumferential direction of the top surface of the outer barrel (3), and the cutting edges of the transverse blades (4) and the longitudinal blades (5) face the rotating direction of the rotary cutting device (2).
2. A rotary cutting drill according to claim 1, wherein said longitudinal blades (5) comprise a blade mount (6) connected to the top surface of the outer barrel (3) and first (7) and second (8) longitudinal blades attached to the blade mount (6), said first (7) and second (8) longitudinal blades being connected at their lower ends and arranged in pairs at an angle to the horizontal;
the cutting edges of the first longitudinal blade (7) and the second longitudinal blade (8) face the rotating direction of the rotary cutting device (2), and the first longitudinal blade (7), the second longitudinal blade (8) and the transverse blade (4) are all triangular prism-shaped structures.
3. A rotary cutting drill according to claim 1, wherein said outer barrel (3) is of hollow cylindrical configuration, and the lateral blades (4) are retractable on the outer side of the outer barrel (3).
4. A rotary cutting drill according to claim 1, wherein said drill body (1) is rotatable independently of said rotary cutting device (2).
5. A rotary cutting drill according to claim 1, wherein said drill body (1) comprises a liner (9) connected to the bottom end of the rotary cutting device (2) and a plurality of blades (10) connected to the lower end of the liner (9), said liner (9) is of a cylindrical structure, and said blades (10) are circumferentially arranged along the outer side of the lower end of the liner (9).
6. The rotary cutting drill bit according to claim 5, wherein the inner container (9) is further sleeved with a drill body (11), and the drill body (11) is connected with the top of the drill blade (10) but is not contacted with the inner container (9).
7. A rotary cutting drill according to claim 1, wherein a wire rope (12) is further connected to the top of the rotary cutting device (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022715869.8U CN213869731U (en) | 2020-11-20 | 2020-11-20 | Rotary cutting type drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022715869.8U CN213869731U (en) | 2020-11-20 | 2020-11-20 | Rotary cutting type drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213869731U true CN213869731U (en) | 2021-08-03 |
Family
ID=77036001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022715869.8U Expired - Fee Related CN213869731U (en) | 2020-11-20 | 2020-11-20 | Rotary cutting type drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213869731U (en) |
-
2020
- 2020-11-20 CN CN202022715869.8U patent/CN213869731U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210803 |