CN213805342U - Stirring drill bit with guiding and anti-locking drilling functions - Google Patents
Stirring drill bit with guiding and anti-locking drilling functions Download PDFInfo
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- CN213805342U CN213805342U CN202022140406.3U CN202022140406U CN213805342U CN 213805342 U CN213805342 U CN 213805342U CN 202022140406 U CN202022140406 U CN 202022140406U CN 213805342 U CN213805342 U CN 213805342U
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Abstract
The utility model discloses a stirring drill bit with functions of guiding and anti-blocking drilling, belonging to the field of construction equipment of building engineering, comprising a drill rod, a first-stage stirring blade, a second-stage stirring blade, a guiding blade, a first-stage re-stirring blade, a second-stage re-stirring blade, a damping layer, a vibration exciter, a soil scraper, a drill point, a drill tooth and a track monitor; one-level stirring vane, second grade stirring vane, lead positive blade, one-level and stir blade, second grade again and all adopt welded connection between blade and the drill point and the drilling rod, the scraper passes through the bearing and is connected with the drilling rod, one-level stirring vane and second grade stirring vane all weld and bore the tooth, install vibration exciter and scraper on the drilling rod, the one-level is repeated to be stirred blade and second grade and is installed the scraper between the blade, the buffer layer sets up the upper end at the drill bit, the position that drill point and drilling rod meet is installed to the orbit monitor. The utility model discloses the effectual drilling slope of having solved and embraced the problem of boring.
Description
Technical Field
The utility model relates to a building engineering construction equipment field, in particular to have the stirring drill bit of leading just and anti-lock brill function concurrently.
Background
A deep-layer cement-soil stirring pile for reinforcing the soft foundation features that cement is used as solidifying agent, and a special stirring machine and slurry pump are used to forcibly stir and mix the soft soil and solidifying agent in deep foundation. The mixer is provided with a core tube, and the head of the core tube is provided with blades. When the mixer rotates, cement slurry is sprayed through the slurry spraying port at the end part of the core pipe and is mixed with soil loosened by the rotating blades to form a cement reinforced body. The stirring head is an important part of the deep layer stirring machine, and directly influences the pile body uniformity of the deep layer stirring pile formed by mixing cement paste and soft soil to determine the reinforcing effect of the foundation.
At present, three outstanding problems exist in deep stirring construction, firstly, soil mass stirred loosely around a stirring shaft rotates along with the stirring shaft, so that cement paste sprayed out of a grout spraying opening cannot be uniformly mixed with soft soil, and pile forming quality is affected; secondly, when the drill bit meets a soft and hard intersected soil layer, the drill bit is easy to deviate, so that the whole drill hole is inclined; thirdly, when hard soil layers are encountered, the drilling is difficult. In order to solve the problems, the stirring drill bit with the functions of guiding and preventing the drill from being blocked is provided.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned technical problem that exists among the prior art, the utility model provides a have concurrently and lead just and prevent embracing the stirring drill bit of boring the function, overcome prior art's not enough. The drill bit is not easy to incline when meeting a soft and hard intersected soil layer by arranging the guide vane; by arranging the scraper, soil bodies loosened around the stirring shaft are prevented from rotating along with the stirring shaft; through setting up two-stage stirring vane and auger bit to the length of two-stage blade increases gradually, can easily creep into during the rotation, and makes the earth of wrapping up on the drill bit drop through the vibration exciter, and provides decurrent impact force simultaneously, makes to creep into more easily.
The utility model provides a have concurrently and lead just and prevent embracing the stirring drill bit of brill function which characterized in that: the device comprises a drill rod, a first-stage stirring blade, a second-stage stirring blade, a guide blade, a first-stage re-stirring blade, a second-stage re-stirring blade, a damping layer, a vibration exciter, a soil scraper, a drill point, drill teeth and a track monitor; one-level stirring vane, second grade stirring vane, lead positive blade, one-level and stir blade, second grade again and all adopt welded connection between blade and the drill point and the drilling rod, the scraper passes through the bearing and is connected with the drilling rod, one-level stirring vane and second grade stirring vane all weld and bore the tooth, second grade stirring vane and lead and install the vibration exciter between the positive blade, the vibration exciter is installed to second grade and stir blade upside again, lead and install the scraper between blade and the second grade and stir blade again, the one-level is stirred blade and second grade and is stirred blade again and install the scraper, the buffer layer sets up the upper end at the drill bit, the position that meets at drill point and drilling rod is installed to the orbit monitor.
Preferably, the first-stage stirring blade and the second-stage stirring blade are composed of three stirring blades, the included angle of the projection of two adjacent stirring blades in the three stirring blades on the horizontal plane is 120 degrees, the included angle between the central axis of the three stirring blades of the first-stage stirring blade and the central axis of the drill rod is 20-35 degrees, the blade length of the first-stage stirring blade is 15-25 cm, the included angle between the central axis of the three stirring blades of the second-stage stirring blade and the central axis of the drill rod is 30-45 degrees, and the blade length of the second-stage stirring blade is 25-35 cm.
Preferably, the guide blade is of a spiral structure, the thickness of the spiral blade is 3 mm-5 mm, the width of the spiral blade is the same as that of the first-stage re-stirring blade, and the pitch of the spiral blade is 40 cm-70 cm.
Preferably, the thickness of the soil scraper is 15 mm-25 mm, the width of the soil scraper is 15 cm-25 cm, the length of the soil scraper is increased by 5 cm-10 cm compared with that of the first-stage repeated stirring blade, and the lengths of the first-stage repeated stirring blade and the second-stage repeated stirring blade are both 30 cm-60 cm.
Preferably, the drill tip is of a spiral structure, and the length of the drill tip is 20 cm-35 cm.
Preferably, the vibration exciter is an electrohydraulic vibration exciter or an electrodynamic vibration exciter, the vibration exciter is connected with the drill rod through a flange, and the rated exciting force of the vibration exciter is 40 kN-100 kN.
Preferably, the shock absorbing layer may be, but is not limited to, mechanical shock absorbing and electromagnetic damping shock absorbing.
The utility model discloses the beneficial technological effect who brings:
the drill bit is not easy to incline when meeting a soft and hard intersected soil layer by arranging the guide vane; by arranging the scraper, soil bodies loosened around the stirring shaft are prevented from rotating along with the stirring shaft; through setting up two-stage stirring vane and auger bit to the length of two-stage blade increases gradually, can easily creep into during the rotation, and makes the earth of wrapping up on the drill bit drop through the vibration exciter, and provides decurrent impact force simultaneously, makes to creep into more easily.
Drawings
Fig. 1 is a schematic structural diagram of a stirring drill bit with functions of guiding and anti-lock drilling.
Wherein, 1-drill rod, 2-first-stage stirring blade, 3-second-stage stirring blade, 4-guide blade, 5-first-stage complex stirring blade, 6-second-stage complex stirring blade, 7-shock absorption layer, 8-vibration exciter, 9-soil scraper, 10-drill point, 11-drill tooth and 12-track monitor.
Detailed Description
The invention is described in further detail below with reference to the following figures and detailed description:
example 1:
as shown in fig. 1, a stirring drill bit with functions of guiding and anti-blocking drilling is characterized in that: the device comprises a drill rod 1, a first-stage stirring blade 2, a second-stage stirring blade 3, a guide blade 4, a first-stage re-stirring blade 5, a second-stage re-stirring blade 6, a damping layer 7, a vibration exciter 8, a soil scraper 9, a drill tip 10, drill teeth 11 and a track monitor 12; one-level stirring vane 2, second grade stirring vane 3, lead blade 4, the one-level and stir blade 5 again, the second grade stir blade 6 again and drill point 10 and drilling rod 1 between all adopt welded connection, scraper 9 passes through the bearing and is connected with drilling rod 1, one-level stirring vane 2 and second grade stirring vane 3 all weld and bore tooth 11, second grade stirring vane 3 and lead and install vibration exciter 8 between blade 4, vibration exciter 8 is installed to the second grade and stir 6 upsides of blade, it stirs blade 4 and the one-level and installs scraper 9 again between blade 5 to lead blade 4, the one-level is stirred blade 5 again and second grade and is installed scraper 9 again between blade 6, buffer layer 7 sets up the upper end at the drill bit, locus monitor 12 is installed at the position that drill point 10 and drilling rod 1 meet.
Preferably, one-level stirring vane 2 and second grade stirring vane 3 are three stirring vane and constitute, and two adjacent stirring vane in the three stirring vane is 120 at the projected contained angle on the horizontal plane, contained angle between the axis of the three stirring vane of one-level stirring vane 2 and the axis of drilling rod 1 is 20, and the blade length of one-level stirring vane 2 is 15cm, contained angle between the axis of the three stirring vane of second grade stirring vane 3 and the axis of drilling rod 1 is 30, and the blade length of second grade stirring vane 3 is 25 cm.
Preferably, the guide blade 4 is of a spiral structure, the thickness of the spiral blade is 3mm, the width of the spiral blade is the same as that of the first-stage complex stirring blade 5, and the pitch of the spiral blade is 50cm.
Preferably, the thickness of the scraper 9 is 15mm, the width of the scraper 9 is 15cm, the length of the scraper 9 is 10cm longer than that of the first-stage multiple stirring blade 5, and the lengths of the first-stage multiple stirring blade 5 and the second-stage multiple stirring blade 6 are both 40cm as same.
Preferably, the drill tip 10 is of a spiral structure, and the length of the drill tip 10 is 35 cm.
Preferably, the vibration exciter 8 is an electrohydraulic vibration exciter 8, the vibration exciter 8 is connected with the drill rod 1 through a flange, and the rated exciting force of the vibration exciter 8 is 70 kN.
Preferably, the shock absorbing layer 7 is a mechanical shock absorber.
Example 2:
as shown in fig. 1, a stirring drill bit with functions of guiding and anti-blocking drilling is characterized in that: the device comprises a drill rod 1, a first-stage stirring blade 2, a second-stage stirring blade 3, a guide blade 4, a first-stage re-stirring blade 5, a second-stage re-stirring blade 6, a damping layer 7, a vibration exciter 8, a soil scraper 9, a drill tip 10, drill teeth 11 and a track monitor 12; one-level stirring vane 2, second grade stirring vane 3, lead blade 4, the one-level and stir blade 5 again, the second grade stir blade 6 again and drill point 10 and drilling rod 1 between all adopt welded connection, scraper 9 passes through the bearing and is connected with drilling rod 1, one-level stirring vane 2 and second grade stirring vane 3 all weld and bore tooth 11, second grade stirring vane 3 and lead and install vibration exciter 8 between blade 4, vibration exciter 8 is installed to the second grade and stir 6 upsides of blade, it stirs blade 4 and the one-level and installs scraper 9 again between blade 5 to lead blade 4, the one-level is stirred blade 5 again and second grade and is installed scraper 9 again between blade 6, buffer layer 7 sets up the upper end at the drill bit, locus monitor 12 is installed at the position that drill point 10 and drilling rod 1 meet.
Preferably, one-level stirring vane 2 and second grade stirring vane 3 are three stirring vane and constitute, and two adjacent stirring vane in the three stirring vane is 120 at the projected contained angle on the horizontal plane, contained angle between the axis of the three stirring vane of one-level stirring vane 2 and the axis of drilling rod 1 is 20, and the blade length of one-level stirring vane 2 is 20cm, contained angle between the axis of the three stirring vane of second grade stirring vane 3 and the axis of drilling rod 1 is 45, and the blade length of second grade stirring vane 3 is 30 cm.
Preferably, the guide blade 4 is of a spiral structure, the thickness of the spiral blade is 4mm, the width of the spiral blade is the same as that of the first-stage complex stirring blade 5, and the pitch of the spiral blade is 50cm.
Preferably, the thickness of the scraper 9 is 15 mm-25 mm, the width of the scraper 9 is 15cm, the length of the scraper 9 is 10cm longer than that of the first-stage re-stirring blade 5, and the lengths of the first-stage re-stirring blade 5 and the second-stage re-stirring blade 6 are both 45cm as same.
Preferably, the drill tip 10 is of a spiral structure, and the length of the drill tip 10 is 35 cm.
Preferably, the vibration exciter 8 is an electric vibration exciter 8, the vibration exciter 8 is connected with the drill rod 1 through a flange, and the rated exciting force of the vibration exciter 8 is 40 kN-100 kN.
Preferably, the shock absorbing layer 7 is an electromagnetic damping shock absorber.
When the drill bit drills down a soil layer with intersected hardness, the guide vane 4 is in close contact with the inner wall of a drill hole, and when the drill tip 10 tends to incline, the soil body extrudes the spiral vane to further eliminate the inclination of the drill tip 10, so that the drill tip 10 is forced to drill down along the central axis; in the process of drilling down, the rotation of one-level stirring vane 2 forms advance drilling, because the length of scraper 9 is longer, the card is in the soil body outside drilling, drilling rod 1 rotates, and scraper 9 can not rotate along with drilling rod 1, takes place relative rotation between scraper 9 and the blade, consequently can not form the phenomenon of embracing the brill, in addition, trajectory monitor 12 is creeping into the orbit of in-process monitoring drilling rod 1, and the later stage can be used for assessing the pile-forming quality.
The utility model relates to a stirring drill bit with functions of guiding and anti-blocking drilling, which is characterized in that the drill bit is not easy to incline when meeting a soft and hard intersected soil layer by arranging a guiding blade; by arranging the scraper, soil bodies loosened around the stirring shaft are prevented from rotating along with the stirring shaft; through setting up two-stage stirring vane and auger bit to the length of two-stage blade increases gradually, can easily creep into during the rotation, and makes the earth of wrapping up on the drill bit drop through the vibration exciter, and provides decurrent impact force simultaneously, makes to creep into more easily.
Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and the changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention also belong to the protection scope of the present invention.
Claims (7)
1. The utility model provides a have concurrently and lead just and prevent embracing the stirring drill bit of brill function which characterized in that: the device comprises a drill rod, a first-stage stirring blade, a second-stage stirring blade, a guide blade, a first-stage re-stirring blade, a second-stage re-stirring blade, a damping layer, a vibration exciter, a soil scraper, a drill point, drill teeth and a track monitor; one-level stirring vane, second grade stirring vane, lead positive blade, one-level and stir blade, second grade again and all adopt welded connection between blade and the drill point and the drilling rod, the scraper passes through the bearing and is connected with the drilling rod, one-level stirring vane and second grade stirring vane all weld and bore the tooth, second grade stirring vane and lead and install the vibration exciter between the positive blade, the vibration exciter is installed to second grade and stir blade upside again, lead and install the scraper between blade and the second grade and stir blade again, the one-level is stirred blade and second grade and is stirred blade again and install the scraper, the buffer layer sets up the upper end at the drill bit, the position that meets at drill point and drilling rod is installed to the orbit monitor.
2. The stirring drill bit with the functions of guiding and preventing the drill from being blocked according to claim 1, wherein the first-stage stirring blade and the second-stage stirring blade are composed of three stirring blades, the included angle of the projection of two adjacent stirring blades in the three stirring blades on the horizontal plane is 120 degrees, the included angle between the central axis of the three stirring blades of the first-stage stirring blade and the central axis of the drill rod is 20-35 degrees, the blade length of the first-stage stirring blade is 15-25 cm, the included angle between the central axis of the three stirring blades of the second-stage stirring blade and the central axis of the drill rod is 30-45 degrees, and the blade length of the second-stage stirring blade is 25-35 cm.
3. The stirring drill bit with the functions of guiding and preventing the drill from being blocked as claimed in claim 1, wherein the guiding blade is of a spiral structure, the thickness of the spiral blade is 3 mm-5 mm, the width of the spiral blade is the same as that of the first-stage repeated stirring blade, and the pitch of the spiral blade is 40 cm-70 cm.
4. The stirring drill bit with the functions of guiding and preventing the drill from being blocked as claimed in claim 1, wherein the thickness of the scraper is 15 mm-25 mm, the width of the scraper is 15 cm-25 cm, the length of the scraper is 5 cm-10 cm greater than that of the first-stage repeated stirring blade, and the lengths of the first-stage repeated stirring blade and the second-stage repeated stirring blade are both 30 cm-60 cm.
5. The stirring drill bit with the functions of guiding and preventing the drill from being blocked as claimed in claim 1, wherein the drill tip is of a spiral structure, and the length of the drill tip is 20 cm-35 cm.
6. The stirring drill bit with the functions of pilot drilling and anti-embracing drilling according to claim 1, wherein the vibration exciter is an electrohydraulic vibration exciter or an electrodynamic vibration exciter, the vibration exciter is connected with a drill rod through a flange, and the rated exciting force of the vibration exciter is 40 kN-100 kN.
7. The stirring drill bit with the functions of guiding and preventing the drill from being blocked as claimed in claim 1, wherein the shock absorption layer is a mechanical shock absorption layer or an electromagnetic damping shock absorption layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022140406.3U CN213805342U (en) | 2020-09-26 | 2020-09-26 | Stirring drill bit with guiding and anti-locking drilling functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022140406.3U CN213805342U (en) | 2020-09-26 | 2020-09-26 | Stirring drill bit with guiding and anti-locking drilling functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213805342U true CN213805342U (en) | 2021-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022140406.3U Active CN213805342U (en) | 2020-09-26 | 2020-09-26 | Stirring drill bit with guiding and anti-locking drilling functions |
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| Country | Link |
|---|---|
| CN (1) | CN213805342U (en) |
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2020
- 2020-09-26 CN CN202022140406.3U patent/CN213805342U/en active Active
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