CN207513555U - A kind of drill bit of rotary drilling rig - Google Patents
A kind of drill bit of rotary drilling rig Download PDFInfo
- Publication number
- CN207513555U CN207513555U CN201720121853.XU CN201720121853U CN207513555U CN 207513555 U CN207513555 U CN 207513555U CN 201720121853 U CN201720121853 U CN 201720121853U CN 207513555 U CN207513555 U CN 207513555U
- Authority
- CN
- China
- Prior art keywords
- drill bit
- rotation axis
- bit housing
- drilling rig
- housing
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of drill bits of rotary drilling rig, including drill bit housing, the pivoted lever being connected to above drill bit housing, and it is set to the rotary digging portion of drill bit housing bottom, it is characterized in that, horizontal rotation axis is equipped with below the drill bit housing, the rotation axis is rotationally connected with drill bit housing, the rotary digging portion is fixedly connected on rotation axis, and the drill bit housing is equipped with that rotation axis is driven to rotate the actuator to realize the rotation of rotary digging portion, the utility model is rational in infrastructure, the predominantly certain angle of the forward and reverse rotation of driving motor driving rotation axis, then rotation axis drives shoveling pawl outwardly or inwardly to rotate certain angle, and then adjust the distance between opposite shoveling pawl bottom, reach the drilling that bit can obtain different pore size in digging process.
Description
Technical field
The utility model is related to the building block of rotary drilling rig, more particularly to a kind of drill bit of rotary drilling rig.
Background technology
Rotary drilling rig is a kind of construction machinery of pore-forming operation in suitable building foundation engineering, and the drill bit of rotary drilling rig is rotation
The important composition component of drilling machine is dug, is divided into two major class：1st, soil bucket is bored including Double bottom fishing sand drill bit, single subdrilling head, body open type
Head, single head soil spiral, double end soil spiral and single subsoil bucket；2nd, rock drill bit, including single head single-screw, double end double helix, embedding rock
Cylinder bores, cutter barrel bores and body open type rock drill bit.
Existing Spiral digging machine drill bit as shown in Figure 4, including drill bit housing 1 and the bottom for being fixedly connected on drill bit housing 1
Tooth 51 is bored, during bit, cone tooth 51 then excavates drilling for being unscrewed to soil, but drilling needs to carry out expanding treatment
When, staff can only different length model cone tooth 51, but generally in order to drill when avoid vibrations strong and cause cone tooth
51 loosen, so all using, cone tooth 51 is welded on drill bit bottom or fixed structure intensity is higher, and dismounting is relatively difficult, therefore has
It treats in a kind of drill bit convenient for expanding treatment of design.
Utility model content
The purpose of this utility model is to provide a kind of drill bit of rotary drilling rig, has the advantages that facilitate reaming.
The above-mentioned technical purpose of the utility model technical scheme is that：
A kind of drill bit of rotary drilling rig including drill bit housing, the pivoted lever being connected to above drill bit housing and is set to
The rotary digging portion of drill bit housing bottom, the drill bit housing lower section are equipped with horizontal rotation axis, and the rotation axis is rotationally connected with brill
Casing, the rotary digging portion is fixedly connected on rotation axis, and the drill bit housing is equipped with that rotation axis is driven to rotate to realize
The actuator of rotary digging portion rotation.
By using above-mentioned technical proposal, actuator driving rotation axis rotates forward certain angle, and rotation axis drives rotation
Digging portion is turned out certain angle, and then spacing increases between rotary digging portion bottom, so drill bit can obtain in digging process
To the drilling in larger aperture；When otherwise actuator driving rotation axis rotates backward, rotary digging portion can inwardly rotate, and then rotary digging
Spacing reduces between portion bottom, then can obtain the drilling of smaller aperture due.
Preferably, the drill bit case inside is fixedly connected with rotation seat, and the rotation seat includes embedded rolling
Bearing, the rotation axis are rotationally connected with rolling bearing.
By using above-mentioned technical proposal, this is a kind of fit system of rotation axis and drill bit housing, can reach rotation
Axis is rotationally connected with the purpose of drill bit housing.
Preferably, the rotary digging portion, which includes setting, is fixedly connected on the shoveling pawl of rotation axis, is fixedly connected on shoveling
Spiral on the inside of pawl is sliced and is fixedly connected on the cone tooth of shoveling pawl lower part.
By using above-mentioned technical proposal, shoveling pawl is determined with cone tooth vertical length can expand great aperture, spiral
Slice is on the one hand for strengthening the structural strength of shoveling pawl, after being on the other hand cut into clod inside, convenient for below by clod from
It is taken out of in drilling, and bores tooth and extend into soil convenient for shoveling pawl.
Preferably, the side of the shoveling pawl is equipped with serrated chip tooth.
By using above-mentioned technical proposal, during bit, serrated chip tooth causes the contact surface of shoveling pawl and soil
Product is small, and then after cone tooth extend into soil, achievees the purpose that convenient for rotation.
Preferably, the actuator is driving motor, and the output shaft of the driving motor is fixedly connected on rotation axis
End.
By using above-mentioned technical proposal, driving motor realizes the driving forward and reverse rotation of rotation axis.
Preferably, the drill bit housing is circumferentially distributed several ribs.
By using above-mentioned technical proposal, rib is used to avoid the friction between drill bit housing and borehole wall, has and protects
Protect the effect of drill bit housing.
Preferably, the drill bit housing is fixedly connected with fastener, and the fastener wears drill bit housing and it is worn
If end is in be detachably connected with rib.
By using above-mentioned technical proposal, the long-time use of drill bit causes rib duration to wear, when rib excessively quilt
When abrasion will have an impact drill bit housing, under staff can dismantle the rib after being worn from connector
Come, then take a complete rib mounted on the corresponding position of drill bit housing, then have the characteristics that drill bit housing wear-resisting, reach
To the purpose that drill bit housing is avoided to be worn.
Preferably, the drill bit housing exterior walls open up fluted, and the rib inlay card is in the groove.
By using above-mentioned technical proposal, after rib inlay card is in groove, under the position-limiting action of groove, rib is not easy
It is fallen down from drill bit housing, achievees the effect that be easily installed connector.
In conclusion the utility model has the advantages that：Driving motor driving rotation axis rotates forward certain
Angle, then rotation axis drives shoveling pawl to be turned out certain angle, and then the distance between pawl bottom increase of cutting the earth relatively,
So bit can obtain the drilling in larger aperture in digging process；Otherwise the drilling of smaller aperture due can be obtained；
Simultaneously under the demountable feature of rib.
Description of the drawings
Fig. 1 is the structure diagram of embodiment；
Fig. 2 is the structure diagram of another angle of embodiment；
Fig. 3 is confined explosion's schematic diagram of embodiment, for showing groove and threaded hole；
Fig. 4 is the structure diagram of the prior art.
Reference numeral：1st, drill bit housing；11st, groove；2nd, pivoted lever；3rd, rotation seat；31st, rolling bearing；4th, rotation axis；5、
Rotary digging portion；51st, shoveling pawl；511st, serrated chip tooth；52nd, spiral is sliced；53rd, tooth is bored；6th, driving motor；7th, rib；71st, spiral shell
Pit；8th, fastener；9th, fastening cap.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.The identical attached drawing of wherein identical parts
Label represents.It should be noted that word "front", "rear" used in the following description, "left", "right", "up" and "down" refer to
It is the direction in attached drawing, word " bottom surface " and " top surface ", " interior " and " outer " are referred respectively to towards or away from particular elements geometry
The direction at center.
Referring to Fig. 1 and Fig. 2, a kind of drill bit of rotary drilling rig including drill bit housing 1 and is arranged on 1 lower part of drill bit housing
Rotary digging portion 5,1 top of drill bit housing are provided with the pivoted lever 2 for being connected to rotary drilling rig, the outer wall distribution of the drill bit housing 1
Have the rib 7 of several arc shapes, rib 7 protrudes from 1 outer wall of drill bit housing, in bit bore, rib 7 for obstruct drilling with
Drill bit housing 1, and then drill bit housing 1 is avoided to be worn.
It, can be to drill bit shell after rib 7 is excessively worn since the long-time use of drill bit causes 7 duration of rib to wear
Body 1 has an impact, so the present embodiment has done following improvement to rib 7 and 1 corresponding position of drill bit housing, referring to Fig. 1 and figure
3, rib 7 towards drill bit housing 1 one it is inward-facing offer threaded hole 71, there are two the settings of threaded hole 71, respectively positioned at rib
Then the both ends of item 7 offer the groove 11 for inlay card rib 7, while in the groove of drill bit housing 1 on drill bit housing 1
The position that 7 threaded hole 71 of rib is corresponded in 11 offers through hole through it, and fastener 8, fastener 8 are connected in through hole
It wears a nut and then wears drill bit housing 1 again, the end that wears of last fastener 8 is threaded in threaded hole 71, by nut
It is tightened on the inner wall of drill bit housing 1.
Referring to Fig. 1 and Fig. 2, it is provided with rotation seat 3 in the lower section of drill bit housing 1, on one block of drill bit side plate there are two settings
Rotation seat 3, rolling bearing 31 is provided on rotation seat 3, and two rolling bearings 31 are rotatably connected to one turn in coaxial arrangement
Moving axis 4, wherein one end of rotation axis 4 wear out corresponding rolling bearing 31, then an external actuator；Drill bit housing 1 is located at
The end is provided with supporting block, and actuator is the driving motor 6 in supporting block, and the output shaft of driving motor 6 is coaxially fixed
It is connected to rotation axis 4.Rotary digging portion 5 includes shoveling pawl 51, spiral slice 52 and cone tooth 53, wherein shoveling pawl 51 along direction of rotation
Right edge for serrated chip tooth 511, the upper end of shoveling pawl 51 is fixedly connected on 4 bar wall of rotation axis；Spiral slice 52 is fixed
The medial surface of shoveling pawl 51 is connected to, while spiral slice 52 protrudes from shoveling pawl 51, cone tooth 53 is fixedly connected on shoveling pawl 51
Bottom.
Specific operation process is：When needing to drill out the drilling of larger aperture or need expanding, start driving motor 6 and drive
Rotation axis 4 rotates forward certain angle, and rotation axis 4 drives shoveling pawl 51 to be turned out certain angle, and then shoveling pawl 51
Distance increases between bottom, so drill bit can obtain the drilling in larger aperture in digging process；Otherwise driving motor 6 drives
When turn moving axis 4 rotates backward certain angle, rotary digging portion 5 can inwardly rotate by a certain angle, and then between 51 bottom of shoveling pawl
Spacing reduces, and then can obtain the drilling of smaller aperture due.
This specific embodiment is only explanation to the utility model, is not the limitation to the utility model, ability
Field technique personnel can as needed make the present embodiment the modification of no creative contribution after this specification is read, but
As long as it is all protected in the right of the utility model by Patent Law.
Claims (8)
1. a kind of drill bit of rotary drilling rig, including drill bit housing（1）, be connected to drill bit housing（1）The pivoted lever of top（2）, with
And it is set to drill bit housing（1）The rotary digging portion of bottom（5）, which is characterized in that the drill bit housing（1）Lower section is equipped with horizontal turn
Moving axis（4）, the rotation axis（4）It is rotationally connected with drill bit housing（1）, the rotary digging portion（5）It is fixedly connected on rotation axis（4）,
And the drill bit housing（1）Equipped with for driving rotation axis（4）It rotates to realize rotary digging portion（5）The actuator of rotation.
A kind of 2. drill bit of rotary drilling rig according to claim 1, which is characterized in that the drill bit housing（1）Inside is consolidated
Surely it is connected with rotation seat（3）, the rotation seat（3）Including embedded rolling bearing（31）, the rotation axis（4）It is rotationally connected with
Rolling bearing（31）.
A kind of 3. drill bit of rotary drilling rig according to claim 2, which is characterized in that the rotary digging portion（5）Including setting
It is fixedly connected on rotation axis（4）Shoveling pawl（51）, be fixedly connected on shoveling pawl（51）The spiral slice of inside（52）, Yi Jigu
Surely it is connected to shoveling pawl（51）The cone tooth of lower part（53）.
A kind of 4. drill bit of rotary drilling rig according to claim 3, which is characterized in that the shoveling pawl（51）Side set
There is serrated chip tooth（511）.
5. the drill bit of a kind of rotary drilling rig according to claim 4, which is characterized in that the actuator is driving motor
（6）, the driving motor（6）Output shaft be fixedly connected on rotation axis（4）End.
A kind of 6. drill bit of rotary drilling rig according to claim 5, which is characterized in that the drill bit housing（1）Circumferential point
It is furnished with several ribs（7）.
A kind of 7. drill bit of rotary drilling rig according to claim 6, which is characterized in that the drill bit housing（1）It is fixed to connect
It is connected to fastener（8）, the fastener（8）Wear drill bit housing（1）And it wears end and rib（7）In being detachably connected.
A kind of 8. drill bit of rotary drilling rig according to claim 7, which is characterized in that the drill bit housing（1）Outer wall is opened
Equipped with groove（11）, the rib（7）Inlay card is in the groove（11）It is interior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720121853.XU CN207513555U (en) | 2017-02-10 | 2017-02-10 | A kind of drill bit of rotary drilling rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720121853.XU CN207513555U (en) | 2017-02-10 | 2017-02-10 | A kind of drill bit of rotary drilling rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207513555U true CN207513555U (en) | 2018-06-19 |
Family
ID=62530683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720121853.XU Expired - Fee Related CN207513555U (en) | 2017-02-10 | 2017-02-10 | A kind of drill bit of rotary drilling rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207513555U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109736700A (en) * | 2019-03-25 | 2019-05-10 | 贵州航天天马机电科技有限公司 | A kind of frozen soil reacting cycle Bidirectional cutting churn drilling tools |
| CN116220028A (en) * | 2023-04-26 | 2023-06-06 | 中铁城建集团第一工程有限公司 | Integrated square pile hoisting construction device and construction method thereof |
-
2017
- 2017-02-10 CN CN201720121853.XU patent/CN207513555U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109736700A (en) * | 2019-03-25 | 2019-05-10 | 贵州航天天马机电科技有限公司 | A kind of frozen soil reacting cycle Bidirectional cutting churn drilling tools |
| CN109736700B (en) * | 2019-03-25 | 2021-04-20 | 贵州航天天马机电科技有限公司 | Frozen soil reverse circulation bidirectional cutting percussion drilling tool |
| CN116220028A (en) * | 2023-04-26 | 2023-06-06 | 中铁城建集团第一工程有限公司 | Integrated square pile hoisting construction device and construction method thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180619 Termination date: 20210210 |