CN219795156U - Drill bit for reverse circulation filling pile - Google Patents
Drill bit for reverse circulation filling pile Download PDFInfo
- Publication number
- CN219795156U CN219795156U CN202320662076.5U CN202320662076U CN219795156U CN 219795156 U CN219795156 U CN 219795156U CN 202320662076 U CN202320662076 U CN 202320662076U CN 219795156 U CN219795156 U CN 219795156U
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- Prior art keywords
- drill bit
- main shaft
- connecting piece
- linkage
- linkage segment
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- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 9
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 9
- 241001330002 Bambuseae Species 0.000 claims abstract description 9
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 9
- 239000011425 bamboo Substances 0.000 claims abstract description 9
- 239000004576 sand Substances 0.000 claims description 6
- 238000005553 drilling Methods 0.000 abstract description 13
- 238000010276 construction Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 8
- 239000002002 slurry Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000009435 building construction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model relates to the technical field of pile foundation drilling construction equipment, and provides a drill bit for reverse circulation bored concrete piles, which comprises the following components: the main shaft cylinder is of a hollow structure and is used for guiding mud; the drill bit main part is located the lower extreme of main shaft section of thick bamboo to with main shaft section of thick bamboo fixed connection, the drill bit main part includes the first linkage segment that is parallel to each other, and the first linkage segment is the same along the extending direction of main shaft section of thick bamboo, and the drill bit main part still includes two second linkage segments, and the second linkage segment is connected with first linkage segment, and is the obtuse angle setting, and the drill bit main part still includes two third linkage segments, and the one end interconnect of two third linkage segments, the other end corresponds respectively and links to each other with two linkage segments, is equipped with a plurality of first broachs on the third linkage segment. By the technical scheme, the contact area between the drill bit and the land can be increased, the hole guiding efficiency is improved, and the whole drilling efficiency is further improved.
Description
Technical Field
The utility model relates to the technical field of pile foundation drilling construction equipment, in particular to a drill bit for a reverse circulation bored pile.
Background
Along with the vigorous development of foundation construction in China, the building construction technology is continuously developed forward, and the bored pile foundation pore-forming construction technology is developed towards a deeper and harder direction. The reverse circulation drill is the pile foundation drilling construction equipment commonly used at present, and the drill bit is the well important component part of rig, whether its structural design is reasonable directly influences the efficiency of drilling, among the prior art at present, because its area of contact with the soil is little, leads to leading hole speed slow, finally influences whole drilling efficiency.
Disclosure of Invention
The embodiment of the utility model aims to provide a drill bit for reverse circulation bored concrete piles, which can increase the contact area between the drill bit and the land, improve the hole guiding efficiency and further improve the whole drilling efficiency.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides a drill bit for reverse circulation bored concrete pile, comprising: the main shaft cylinder is of a hollow structure and is used for guiding mud; the drill bit main part is located the lower extreme of main shaft section of thick bamboo, and with main shaft section of thick bamboo fixed connection, the drill bit main part includes the first linkage segment that is parallel to each other, first linkage segment is followed the extending direction of main shaft section of thick bamboo is the same, the drill bit main part still includes two second linkage segments, the second linkage segment with first linkage segment is connected, and is the obtuse angle setting, the drill bit main part still includes two third linkage segments, two the one end interconnect of third linkage segment, the other end corresponds respectively with two the linkage segment links to each other, be equipped with a plurality of first broachs on the third linkage segment.
As an embodiment, the first comb teeth are arranged to extend obliquely along one side of the third connecting section.
As an embodiment, the plurality of first comb teeth on the two third connecting sections are respectively arranged in an inclined and extending manner in opposite directions.
In one embodiment, the drill bit includes a retainer that is located on an outer periphery of the spindle tube and is spaced apart from the spindle tube, and the retainer is connected to the drill bit body and the spindle tube by a plurality of connection portions.
As one embodiment, the connecting part comprises a first connecting piece which is fixedly connected with the main shaft cylinder and is consistent with the extending direction of the main shaft cylinder;
the connecting portion comprises a second connecting piece and a third connecting piece, two ends of the second connecting piece are respectively connected with one ends of the guard ring and the first connecting piece, and two ends of the third connecting piece are respectively connected with the other ends of the guard ring and the first connecting piece.
As an embodiment, the first, second and third connecting pieces form a deflector aperture for guiding the flow of sand and mud.
As one embodiment, the connecting portion is provided with a plurality of second comb teeth, and the second comb teeth are obliquely arranged along one side of the connecting portion.
As an embodiment, the drill bit further comprises a connection for connection with a drill rod, said connection being located at the tip of the drill bit.
In one embodiment, the two third connecting sections are connected at a position which is equal to the radius of the retainer from the center of the retainer.
The technical scheme of the utility model has the following effects:
1. the drill bit body comprises first connecting sections which are parallel to each other, the first connecting sections are identical to the main shaft barrel in extending direction, the drill bit body further comprises two second connecting sections, the second connecting sections are connected with the first connecting sections and are arranged at an obtuse angle with the first connecting sections, so that the whole length of the two third connecting sections is prolonged, a plurality of first comb teeth can be arranged on the third connecting sections, the contact area between the plurality of first comb teeth on the third connecting sections and the land is increased, and the hole guiding efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments of the present utility model will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present utility model and should not be considered as limiting the scope, and other related drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a drill bit according to an embodiment of the present utility model;
fig. 2 is a schematic view of a drill bit according to an embodiment of the present utility model.
Icon: 1-a main shaft barrel; 2-a bit body; 21-a first connection section; 22-a second connection section; 23-a third connecting section; 3-first comb teeth; 4-guard ring; a 5-connection; 51-a first connecting piece; 52-a second connecting piece; 53-a third connecting piece; 6-second comb teeth; 7-a drill pipe connection; 8-deflector holes.
Detailed Description
The technical solutions in the embodiments of the present utility model will be described below with reference to the accompanying drawings in the embodiments of the present utility model.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Meanwhile, in the description of the present utility model, the terms "first", "second", and the like are used only to distinguish the description, and are not to be construed as indicating or implying relative importance.
As shown in fig. 1 and 2, the embodiment of the present utility model introduces a drill bit for reverse circulation bored concrete piles, which comprises a main shaft barrel 1, wherein the main shaft barrel 1 is of a hollow structure, the inside of the main shaft barrel 1 is used for guiding slurry, the main shaft barrel 1 is connected with a drill rod, the main shaft barrel 1 rotates synchronously with a drill bit main body 2 at the lower end when rotating, the drill bit main body 2 is used for guiding holes and stirring sand and slurry in the rotating process, and the slurry flows out through the main shaft barrel 1 and the drill rod;
the drill bit body 2 includes two first linkage segments 21 that are parallel to each other, the one end and the main shaft section 1 fixed connection of first linkage segment 21, the other end is in order to keep away from main shaft section 1 orientation extension, the drill bit body 2 still includes two second linkage segments 22, the one end of two second linkage segments 22 corresponds respectively and is connected with first linkage segment 21, and the contained angle of two second linkage segments 22 and two first linkage segments 21 is the obtuse angle setting, the other end of second linkage segment 22 is in order to keep away from the axial direction of main shaft section 1 and outwards extends the setting, the drill bit body 2 still includes two third linkage segments 23, the one end of two third linkage segments 23 is connected with second linkage segment 22 respectively, the other end then fixed connection each other, thereby make a plurality of first linkage segments 21, a plurality of second linkage segments 22 and a plurality of third linkage segments 23 constitute a confined polygon, still be equipped with a plurality of first broachs 3 that are used for guiding hole on the third linkage segment 23, be the obtuse angle setting through second linkage segment 22 and first linkage segment 21, thereby the length of third linkage segment 23 has increased, the third linkage segment 23 has increased the length of third linkage segment 23 and has improved the first broach 3 when rotating the hole has improved.
Optionally, the first comb teeth 3 are arranged on the third connecting section 23 at intervals, so that the drill bit can uniformly drill holes.
Alternatively, the angle between the first connection section 21 and the second connection section 22 may be 150 °, and the angle between the second connection section 22 and the third connection section 23 may be 90 °.
Alternatively, in some cases, the first connecting section 21 may be integrally formed with the second connecting section 22, that is, one end of the first connecting section 21 is fixedly connected to the main shaft barrel 1, and the other end is disposed to extend obliquely away from the axial direction of the main shaft barrel 1.
As an implementation manner, the first comb teeth 3 are obliquely arranged along one side of the third connecting section 23, so that the internal friction angle between the first comb teeth 3 and sand is ensured, and the drilling efficiency is improved.
Alternatively, the first comb teeth 3 may form an angle of 40 ° with the vertical direction of the third connecting section 23.
As an embodiment, the number of the third connection sections 23 is two, each third connection section 23 is respectively provided with a plurality of first comb teeth 3, and the plurality of first comb teeth 3 on the two third connection sections 23 are respectively arranged in an inclined extending manner in opposite directions, so that the quality of the hole diameter and the drilling efficiency are ensured.
Optionally, the two third connecting sections 23 include a first side and a second side, wherein a part of the first comb teeth 3 are disposed on the first side of one of the third connecting sections 23, the other part of the first comb teeth 3 are disposed on the second side of the other third connecting section 23, and the plurality of first comb teeth 3 are respectively obliquely extended from the corresponding sides of the corresponding third connecting sections 23, so that the plurality of first comb teeth 3 on the two third connecting sections 23 are respectively obliquely extended in opposite directions, and the drilling efficiency is improved.
As shown in fig. 1 and 2, as an embodiment, the drill includes a retainer 4, the retainer 4 is disposed at the outer circumference of the main shaft barrel 1 and spaced apart from the main shaft barrel 1, and the retainer 4 is connected with the main shaft barrel 1 and two third connection sections 23 through a plurality of connection parts 5, thereby increasing the overall structural strength of the drill and further enlarging the drillable aperture.
Alternatively, the diameter of the retainer 4 may be 180mm.
As an embodiment, the connecting portion 5 is triangular, so as to improve the overall stability of the drill bit, the connecting portion 5 includes a first connecting piece 51, one side of the first connecting piece 51 is fixedly connected with the spindle barrel 1, the extending direction is the same as the axial direction of the spindle barrel 1, the connecting portion 5 further includes a second connecting piece 52 and a third connecting piece 53, the second connecting piece 52 horizontally extends, the retainer 4 is fixedly connected with one end of the first connecting piece 51, the third connecting piece 53 obliquely extends, and the retainer 4 is fixedly connected with the other end of the first connecting piece 51, so that the stability of the overall structure of the drill bit is improved.
Alternatively, the angle formed by the second connecting piece 52 and the third connecting piece 53 may be 15 °, and the angle formed by the third connecting piece 53 and the first connecting piece 51 may be 75 °.
As shown in fig. 1, as an embodiment, the first connecting piece 51, the second connecting piece 52 and the third connecting piece 53 form a diversion hole 8 for guiding sand and slurry to flow through, and during drilling of the drill bit, the sand and slurry can flow through the diversion hole 8, thereby ensuring the aperture of the drilled hole and the pore forming quality.
As shown in fig. 1 and 2, as an embodiment, the drill bit includes the second comb teeth 6, the second comb teeth 6 are disposed on the connection portion 5, one end of the second comb teeth 6 is fixedly connected with the connection portion 5, and the other end of the second comb teeth extends obliquely, and by disposing the second comb teeth 6, the second comb teeth 6 can be used for cutting the land when the drill bit rotates, thereby increasing the aperture and improving the drilling efficiency.
Optionally, the second comb teeth 6 are disposed at one side of the third connection pieces 53, and each third connection piece 53 is provided with a plurality of second comb teeth 6.
As shown in fig. 1, as an embodiment, the top end of the drill bit is provided with a drill rod connecting piece 7, and the drill bit can be conveniently connected with the drill rod by arranging the drill rod connecting piece 7.
Optionally, a drill rod connection 7 is provided at the top end of the main shaft barrel 1.
As an implementation manner, the distance between the connecting position of the two third connecting sections 23 and the circle center of the retainer 4 is equal to the radius of the retainer 4, so that the connecting line formed by the connecting position of the retainer 4 and the two third connecting sections 23 and the connecting line between the radius of the retainer 4 and the connecting position of the two third connecting sections 23 and the circle center of the retainer 4 form an isosceles triangle, thereby ensuring that the whole stress of the drill bit is uniform in the drilling process, simultaneously ensuring the slag discharging effect and improving the hole forming efficiency.
The above description is only an example of the present utility model and is not intended to limit the scope of the present utility model, and various modifications and variations will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Claims (9)
1. A drill bit for reverse circulation bored concrete piles, comprising:
the main shaft cylinder is of a hollow structure and is used for guiding mud;
the drill bit main part is located the lower extreme of main shaft section of thick bamboo, and with main shaft section of thick bamboo fixed connection, the drill bit main part includes the first linkage segment that is parallel to each other, first linkage segment with the extending direction of main shaft section of thick bamboo is the same, the drill bit main part still includes two second linkage segments, the second linkage segment with first linkage segment is connected, and is the obtuse angle setting, the drill bit main part still includes two third linkage segments, two the one end of third linkage segment interconnect, the other end corresponds respectively with two the linkage segment links to each other, be equipped with a plurality of first broachs on the third linkage segment.
2. Drill bit for reverse circulation bored concrete pile according to claim 1, wherein the first comb teeth are provided extending obliquely along one side of the third connecting section.
3. Drill bit for reverse circulation bored concrete piles according to claim 2, wherein the plurality of first comb teeth on the two third connecting sections are respectively provided to extend obliquely in opposite directions.
4. A drill bit for reverse circulation bored concrete piles according to any of claims 1 to 3, wherein the drill bit includes a retainer which is located at the outer periphery of the main shaft tube and is spaced apart from the main shaft tube, and the retainer is connected to the drill bit body and the main shaft tube by a plurality of connection portions.
5. The drill bit for reverse circulation bored concrete piles according to claim 4, wherein the connecting portion includes a first connecting piece fixedly connected to the main shaft tube and conforming to an extending direction of the main shaft tube;
the connecting portion comprises a second connecting piece and a third connecting piece, two ends of the second connecting piece are respectively connected with one ends of the guard ring and the first connecting piece, and two ends of the third connecting piece are respectively connected with the other ends of the guard ring and the first connecting piece.
6. The drill bit for reverse circulation bored concrete piles according to claim 5, wherein the first connecting piece, the second connecting piece and the third connecting piece constitute a guide hole for guiding the flow of sand and mud therethrough.
7. The drill bit for reverse circulation bored concrete piles according to claim 4, wherein a plurality of second comb teeth are provided on the connecting portion, and the second comb teeth are provided to extend obliquely along one side of the connecting portion.
8. The drill bit for reverse circulation bored concrete piles according to claim 7, further comprising a connector for connection to a drill pipe, the connector being located at the tip of the drill bit.
9. The drill bit for reverse circulation bored concrete piles according to claim 4, wherein the positions where the two third connecting sections are connected are equal to the radius of the retainer from the center of the retainer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320662076.5U CN219795156U (en) | 2023-03-29 | 2023-03-29 | Drill bit for reverse circulation filling pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320662076.5U CN219795156U (en) | 2023-03-29 | 2023-03-29 | Drill bit for reverse circulation filling pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219795156U true CN219795156U (en) | 2023-10-03 |
Family
ID=88180112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320662076.5U Active CN219795156U (en) | 2023-03-29 | 2023-03-29 | Drill bit for reverse circulation filling pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219795156U (en) |
-
2023
- 2023-03-29 CN CN202320662076.5U patent/CN219795156U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |