CN218030053U - Bidirectional rotary drill bit device - Google Patents
Bidirectional rotary drill bit device Download PDFInfo
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- CN218030053U CN218030053U CN202221884075.7U CN202221884075U CN218030053U CN 218030053 U CN218030053 U CN 218030053U CN 202221884075 U CN202221884075 U CN 202221884075U CN 218030053 U CN218030053 U CN 218030053U
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Abstract
The bidirectional rotary drill bit device comprises a stirring frame, a rotating shaft, a stirring head and a drill bit; the stirring frame comprises an upper rotating seat, a lower rotating seat and at least two stirring arms; the stirring head comprises a sleeve seat and a plurality of second stirring blades, and the drill bit comprises a drill bit body and at least two drill arms; all the drill arms are distributed on the periphery of the drill bit body, and a row of second digging teeth are arranged at the lower ends of the drill arms; the lower extreme of pivot is located to the drill bit body, is equipped with the thick liquid passageway in the pivot, the bottom of drill bit body be equipped with thick liquid passageway intercommunication first export. The utility model discloses the stirring frame can be round pivot forward rotation, but stirring head and drill bit counter-rotation. Horizontal upper arm, underarm, first stirring piece and the vertical connecting rod of stirring frame can stir with the stirring head cooperation, and the stirring is more even. The drill bit can drill the ground through the second digging teeth, water can be injected below the drill bit through the slurry channel, and the drill bit is assisted to drill; the hole that stirring frame accessible first dig the tooth and dig out the drill bit carries out the reaming, digs the hole efficiently.
Description
Technical Field
The utility model belongs to the technical field of engineering machine tool and specifically relates to a two-way rotary drill bit device is related to.
Background
When the pile foundation is constructed, a hole digging machine is needed to dig holes on the bottom surface, and then grouting or pile planting is carried out. The drill bit for digging holes is different according to different foundation hardness, and the drill bit needs to be replaced sometimes to drill holes. The cement mixing pile is suitable for soft foundation, and the curing agent is required to be injected into the soft soil in the deep part of the foundation for forced mixing, so that the soft soil is cured and condensed. In the existing hole digging machine, the head parts with different functions are replaced and separately carried out for hole digging and stirring, and the hole digging and stirring efficiency is limited.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned not enough, provide a dig hole, stir efficient two-way rotary drill bit device.
In order to achieve the above object, the technical solution of the present invention is: the bidirectional rotary drill bit device comprises a stirring frame, a rotating shaft, a stirring head and a drill bit;
the stirring frame comprises an upper rotating seat, a lower rotating seat and at least two stirring arms; the upper rotating seat and the lower rotating seat can be sleeved on the rotating shaft in a rotating mode, all stirring arms are distributed on the periphery of the upper rotating seat and comprise upper arms, lower arms, connecting rods and first stirring pieces, one ends of the upper arms are connected with the upper rotating seat, the other ends of the upper arms extend outwards, one ends of the lower arms are connected with the lower rotating seat, the other ends of the lower arms extend outwards, the connecting rods are vertically arranged, the two ends of the connecting rods are respectively connected with the other ends of the upper arms and the other ends of the lower arms, the first stirring pieces are transversely arranged on the connecting rods and extend in an overhanging mode in the direction of the rotating shaft, and a row of first digging teeth are arranged at the lower ends of the lower arms;
the stirring head comprises a sleeve seat and a plurality of second stirring sheets, the sleeve seat is arranged on the rotating shaft, the sleeve seat is arranged between the upper rotating seat and the lower rotating seat, and the plurality of second stirring sheets are annularly distributed on the periphery of the sleeve seat;
the drill bit comprises a drill bit body and at least two drill arms; all the drill arms are distributed on the periphery of the drill bit body, and a row of second digging teeth are arranged at the lower ends of the drill arms; the lower extreme of pivot is located to the drill bit body, is equipped with the thick liquid passageway in the pivot, the bottom of drill bit body be equipped with thick liquid passageway intercommunication first export.
The stirring frame can rotate around the rotating shaft in the forward direction, and the rotating shaft can drive the stirring head and the drill bit to rotate in the reverse direction. The drill bit can drill the ground through the second digging teeth, water can be injected below the drill bit through the slurry channel, and the drill bit is assisted to drill; the hole that stirring frame accessible first dig the tooth and dig out the drill bit carries out the reaming, digs the hole efficiently. And the earth of digging out can stir under stirring frame and stirring head cooperation, and curing agent accessible thick liquid water channel such as grout pours into the stake downthehole, and the curing agent is with the downthehole earth misce bene of stake under the stirring of stirring frame and stirring head, stirs efficiently. The stirring frame comprises a vertical connecting rod, three horizontal upper arms, lower arms and first stirring sheets, and can stir more and more soil in the pile hole.
Preferably, the stirring heads are two, the two stirring heads are arranged up and down, and the first stirring sheet extends into a space between the two stirring heads. The second stirring piece of two stirring heads is located the top and the below of first stirring piece respectively, and the rotation opposite direction of first stirring piece and second stirring piece, the downthehole earth stirring of stake is more even.
Preferably, the sleeve seat is rotatably arranged on the rotating shaft, a limiting groove is formed in the end portion of the sleeve seat, a limiting ring is arranged on the rotating shaft, a protruding limiting block is arranged on the limiting ring, and the limiting block extends into the limiting groove; the rotating shaft is provided with a second outlet communicated with the slurry channel at the position corresponding to the sleeve seat, the sleeve seat is provided with a third outlet, and the sleeve seat can be rotated to enable the sleeve seat to seal the second outlet or enable the third outlet to face the second outlet. The limiting block is matched with the limiting groove to limit the rotation angle of the stirring head. When the stirring head rotates and takes the stirring of second stirring piece to be blocked when the post, the stirring head can rotate round the pivot, and the second export aligns with the third export, and the water in the thick liquid water passageway gets into the stake hole through second export and third export and irritates for the downthehole earth of stake is softened, stirs the frame and can continue the stirring with the stirring head.
Preferably, the first outlet is provided with a check valve. The check valve is used for plugging up first export, can open the check valve only after the pressure of thick liquid water passageway reaches certain pressure, and water or grout can only be discharged from first export. When the second and third outlets are aligned, water from the slurry passage is discharged from the third outlet, and when the second outlet is sheathed and closed, the pressure in the slurry passage rises until the check valve is flushed. Therefore, the water from the first outlet has certain pressure, and the hole digging operation is further facilitated.
Preferably, the connecting rod is detachably connected with the other end of the upper arm and the other end of the lower arm. The connecting rod helps the stirring frame to stir downthehole earth of stake, nevertheless also rubs with the inner wall in stake hole many times, and easy wearing and tearing can dismantle connection structure and make the connecting rod can change the maintenance.
Preferably, the first stirring sheet is inclined and deflected around a horizontal shaft, the second stirring sheet is inclined and deflected around the horizontal shaft, and the inclination direction of the first stirring sheet is opposite to that of the second stirring sheet. The first stirring sheet and the second stirring sheet are obliquely arranged at different angles, and can push the slurry to flow in different directions when rotating, and the slurry is more uniformly mixed after flowing, impacting and mixing.
Preferably, the lower end of the drill body is provided with a circle of drilling tools at the periphery of the first outlet, and the lower end of the drilling tools inclines to the central axis of the drill body. The drill bit is used to dig hard hole bottoms.
Preferably, the lower arm comprises an arm plate and a toothed plate, the arm plate is horizontally arranged, one end of the toothed plate is connected with the arm plate, the other end of the toothed plate inclines downwards to form a protruding end, the end face of the protruding end is arc-shaped, and a row of first digging teeth are arranged along the end portion of the protruding end; the closer the toothed plate is to the bit shaft, the narrower its width. The soil excavated by the first tooth or the soil at the bottom of the pile hole may be moved along the slope of the protruding end to above the lower arm to be stirred.
By adopting the technical scheme, the beneficial effects of the utility model are that: the utility model discloses the stirring frame can be round pivot forward rotation, but stirring head and drill bit counter-rotation. Horizontal upper arm, underarm, first stirring piece and the vertical connecting rod of stirring frame can stir with the cooperation of stirring head, improve stirring efficiency, stir more evenly. The drill bit can drill the ground through the second digging teeth, water can be injected below the drill bit through the slurry channel, and the drill bit is assisted to drill; the hole that stirring frame accessible first tooth dug the drill bit is carried out the reaming, digs the hole efficiently.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a perspective view of the present invention;
fig. 3 is a longitudinal sectional view of the present invention.
Description of the main reference numbers:
a rotating shaft 1; a stirring frame 2; an upper swing base 21; a lower swing seat 22; a stirring arm 23; an upper arm 231; a connecting rod 232; a first stirring blade 233; a lower arm 234; an arm plate 2341; a toothed plate 2342; a first digging tooth 235; a stirring head 3; a sleeve seat 31; a limiting groove 311; the second agitating blade 32; a stop collar 4; a stopper block 41; a drill bit 5; a bit body 51; a drill boom 52; the second digging tooth 53; a drill bit 54; a check valve 55; a slurry passage 6; a first outlet 61; a second outlet 62; a third outlet 63.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
As shown in fig. 1-3, the bidirectional rotary drill device of the present invention comprises a rotating shaft 1, a stirring frame 2, a drill 5, and two stirring heads 3.
As shown in fig. 1 and 2, the stirring frame 2 includes an upper rotating base 21, a lower rotating base 22, and three stirring arms 23; the upper rotary seat 21 and the lower rotary seat 22 can be rotatably sleeved on the rotating shaft 1, the upper rotary seat 21 is arranged above the lower rotary seat 22, and the three stirring arms are annularly and uniformly distributed on the periphery of the upper rotary seat 21.
As shown in fig. 2, each stirring arm includes an upper arm 231, a lower arm 234, a connecting rod 232, and a first stirring piece 233. One end of the upper arm 231 connects the upper swivel base 21, and the other end extends outward and transversely. The lower arm 234 has one end connected to the swing seat 22 and the other end extending laterally outward. The vertical setting of connecting rod 232, the both ends of connecting rod 232 can be dismantled with the other end of upper arm 231 and the other end of underarm 231 and be connected respectively. The first stirring blade 233 is transversely disposed at the middle of the connecting rod 232 and cantilevered toward the rotation axis.
The lower arm 234 comprises an arm plate 2341 and a toothed plate 2342, the arm plate 2341 is horizontally arranged, one end of the toothed plate 2342 is connected with the arm plate 2341, the other end of the toothed plate 2342 inclines downwards to form an extending end, the end face of the extending end is arc-shaped, and a row of first digging teeth 235 are arranged along the end portion of the extending end; the closer the toothed plate 2341 is to the bit axis, the narrower its width. As the lower arm 234 rotates with the blender frame 2, the first digging tooth 235 may dig into the earth, which may move upwardly with the inclined tooth plate.
As shown in fig. 2, the two stirring heads 3 are disposed up and down. The stirring head 3 comprises a sleeve seat 31 and three second stirring sheets 32, the three second stirring sheets 32 are annularly distributed on the periphery of the sleeve seat 31, and the sleeve seat is arranged between an upper rotating seat and a lower rotating seat. The first stirring piece 233 is extended into the space between the two stirring heads 3, the first stirring piece 233 is tilted and deflected around the horizontal axis, the second stirring piece 32 is tilted and deflected around the horizontal axis, and the tilting direction of the first stirring piece 233 is opposite to the tilting direction of the second stirring piece 32.
As shown in fig. 1, the sleeve seat 31 is rotatably disposed on the rotating shaft 1, a limiting groove 311 is disposed at an end of the sleeve seat 31, a limiting ring 4 is disposed on the rotating shaft 1, a protruding limiting block 41 is disposed on the limiting ring 4, and the limiting block 41 extends into the limiting groove 41. The rotation angle of the sleeve seat 31 on the rotating shaft 1 is limited by the cooperation of the limiting block and the limiting groove. As shown in fig. 3, a slurry passage 6 is provided in the rotating shaft 1, and the slurry passage 6 is used for transporting cement slurry or water. The rotating shaft 1 is provided with a second outlet 62 communicated with the slurry channel 6 at the corresponding position of the sleeve seat, the sleeve seat 31 is provided with a third outlet 63, and the sleeve seat 31 can be rotated to enable the sleeve seat 31 to seal the second outlet 62 or enable the third outlet 63 to face the second outlet 62.
As shown in fig. 2 and 3, the drill 5 includes a drill body 51, three drill booms 52; the three drill booms 52 are annularly and uniformly distributed on the periphery of the drill bit body 51, and a row of second digging teeth 51 is arranged at the lower ends of the drill booms 52. The drill bit body 51 is arranged at the lower end of the rotating shaft 1, and the bottom of the drill bit body 51 is provided with a first outlet 61 communicated with the slurry channel 6. The first outlet 61 is provided with a check valve 55. The lower end of the bit body 51 is provided with a circle of drill bits 54 at the periphery of the first outlet 61, and the lower end of the drill bits 54 is inclined to the central axis of the bit body 51.
When digging a hole, the stirring frame 2 can rotate around the rotating shaft 1 in the positive direction, and the rotating shaft 1 can drive the drill bit 5 to rotate in the reverse direction. The drill bit 5 can drill the ground through the second digging teeth, water can be injected below the drill bit through the first outlet, and the drill bit is assisted to drill; the stirring frame can be used for reaming the hole dug by the drill bit through the first digging tooth.
During stirring, the stirring frame 2 can rotate forwards around the rotating shaft, the stirring head 3 rotates reversely under the driving of the rotating shaft, curing agents such as cement paste can be injected into the pile hole through the first outlet or the second outlet of the slurry channel, and the curing agents are uniformly mixed with soil in the pile hole under the stirring of the stirring frame and the stirring head. The stirring frame comprises a vertical connecting rod, three horizontal upper arms, lower arms and first stirring sheets, and can stir more and more soil in the pile hole. When stirring head 3 rotates the stirring of taking second stirring piece to be blocked the post, the stirring head can rotate round the pivot, and the second export aligns with the third export, and the water of thick liquid passageway is discharged from the third export for the downthehole earth of stake softens, and stirring frame and stirring head can continue to stir, and the cover seat rotates and to seal the second export, and the pressure in the thick liquid passageway rises until dashing open the check valve, goes out water from first export.
The above-mentioned is only a preferred embodiment of the present invention, which can not limit the scope of the present invention, and all the equivalent changes and decorations made according to the claims of the present invention should still fall within the scope covered by the present invention.
Claims (8)
1. The bidirectional rotary drill bit device is characterized by comprising a stirring frame, a rotating shaft, a stirring head and a drill bit;
the stirring frame comprises an upper rotating seat, a lower rotating seat and at least two stirring arms; the upper rotating seat and the lower rotating seat can be rotatably sleeved on the rotating shaft in an sleeved mode, all stirring arms are distributed on the periphery of the upper rotating seat and comprise upper arms, lower arms, connecting rods and first stirring pieces, one ends of the upper arms are connected with the upper rotating seat, the other ends of the upper arms extend outwards, one ends of the lower arms are connected with the lower rotating seat, the other ends of the lower arms extend outwards, the connecting rods are vertically arranged, the two ends of the connecting rods are respectively connected with the other ends of the upper arms and the other ends of the lower arms, the first stirring pieces are transversely arranged on the connecting rods and extend in an overhanging mode in the direction of the rotating shaft, and a row of first digging teeth are arranged at the lower ends of the lower arms;
the stirring head comprises a sleeve seat and a plurality of second stirring sheets, the sleeve seat is arranged on the rotating shaft, the sleeve seat is arranged between the upper rotating seat and the lower rotating seat, and the plurality of second stirring sheets are annularly distributed on the periphery of the sleeve seat;
the drill bit comprises a drill bit body and at least two drill arms; all the drill arms are distributed on the periphery of the drill bit body, and a row of second digging teeth are arranged at the lower ends of the drill arms; the lower extreme of pivot is located to the drill bit body, is equipped with the thick liquid passageway in the pivot, and the bottom of drill bit body is equipped with and thick liquid passageway intercommunication first export.
2. The bi-directional rotary drill bit assembly of claim 1, wherein there are two of the stirring heads, the two stirring heads being disposed one above the other, the first stirring blade extending into a space between the two stirring heads.
3. The bi-directional rotary drill bit device according to claim 1, wherein the sleeve holder is rotatably disposed on the rotating shaft, the end of the sleeve holder is provided with a limiting groove, the rotating shaft is provided with a limiting ring, the limiting ring is provided with a protruding limiting block, and the limiting block extends into the limiting groove; the rotating shaft is provided with a second outlet communicated with the slurry channel at the position corresponding to the sleeve seat, the sleeve seat is provided with a third outlet, and the sleeve seat can be rotated to seal the second outlet or enable the third outlet to face the second outlet.
4. A bi-directional rotary drill bit assembly according to claim 3, wherein the first outlet is provided with a check valve.
5. The bi-directional rotary drill bit assembly of claim 1, wherein the connecting rod is removably connected to both the other end of the upper arm and the other end of the lower arm.
6. The bi-directional rotary drill bit assembly of claim 1, wherein the first stirring blade is tilted about a horizontal axis and the second stirring blade is tilted about a horizontal axis, the first stirring blade being tilted in a direction opposite to the direction of the tilt of the second stirring blade.
7. The bi-directional rotary drill bit assembly of claim 1, wherein the lower end of the drill bit body is provided with a ring of cutting inserts at the outer periphery of the first outlet, the lower ends of the cutting inserts being inclined to the central axis of the drill bit body.
8. The bidirectional rotary drill bit device according to claim 1, wherein the lower arm comprises an arm plate and a toothed plate, the arm plate is horizontally arranged, one end of the toothed plate is connected with the arm plate, the other end of the toothed plate inclines downwards to form a protruding end, the end face of the protruding end is arc-shaped, and a row of first digging teeth are arranged along the end part of the protruding end; the closer the toothed plate is to the bit shaft, the narrower its width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221884075.7U CN218030053U (en) | 2022-07-20 | 2022-07-20 | Bidirectional rotary drill bit device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221884075.7U CN218030053U (en) | 2022-07-20 | 2022-07-20 | Bidirectional rotary drill bit device |
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| Publication Number | Publication Date |
|---|---|
| CN218030053U true CN218030053U (en) | 2022-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221884075.7U Active CN218030053U (en) | 2022-07-20 | 2022-07-20 | Bidirectional rotary drill bit device |
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| CN (1) | CN218030053U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116272477A (en) * | 2023-03-30 | 2023-06-23 | 中国十七冶集团有限公司 | Accelerating straw mud stirring tool and mounting method |
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2022
- 2022-07-20 CN CN202221884075.7U patent/CN218030053U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116272477A (en) * | 2023-03-30 | 2023-06-23 | 中国十七冶集团有限公司 | Accelerating straw mud stirring tool and mounting method |
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