CN211474024U - Drill bit device suitable for sandy cobble stratum - Google Patents
Drill bit device suitable for sandy cobble stratum Download PDFInfo
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- CN211474024U CN211474024U CN201922066648.XU CN201922066648U CN211474024U CN 211474024 U CN211474024 U CN 211474024U CN 201922066648 U CN201922066648 U CN 201922066648U CN 211474024 U CN211474024 U CN 211474024U
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Abstract
The utility model discloses a drill bit device suitable for a sandy cobble stratum, which comprises a first drill rod and a drill bit body; the first drill rod is of a hollow tubular structure, one end of the first drill rod is provided with a first internal thread section, and the other end of the first drill rod is provided with a first external thread section; a plurality of drill bit grooves are formed in the first external thread section, the drill bit body comprises a plurality of drill teeth, the number of the drill teeth is the same as that of the drill bit grooves, the drill bit body is inserted into the drill bit grooves, and the drill teeth and the drill bit grooves are correspondingly arranged. The utility model aims to solve the problem that the sand cobble stratum creeps into the in-process and drills into difficulty and card hole among the prior art. The technical effects achieved are as follows: compared with the conventional drill, the utility model solves the problems of hole blocking and difficult drilling; the construction period is shortened, and the construction cost is saved; the drill bit device is simple to manufacture and convenient to process, and can be completed on a construction site.
Description
Technical Field
The embodiment of the utility model provides a bit structure technical field, concretely relates to drill bit device suitable for sandy cobble stratum.
Background
The PBA construction method is used as a construction method combining shallow excavation and cover excavation, the construction method needs to operate in a waterless environment, and the requirement on underground water control is high; the method for dewatering by the PBA method generally combines the dewatering outside and inside the caverns, the dewatering inside the caverns generally adopts the dewatering of light well points such as a horizontal radiation well, and the dewatering of the light well points relates to the problem of stratum drilling; and because the PBA construction method belongs to shallow excavation, the excavated stratum is usually positioned in a gravel layer, and the conventional drill bit in the gravel layer often has the problems of hole blockage or difficult drilling.
SUMMERY OF THE UTILITY MODEL
Therefore, the embodiment of the utility model provides a drill bit device suitable for sand cobble stratum to solve among the prior art sand cobble stratum and creep into the problem of difficult and card hole of in-process drilling.
In order to realize above-mentioned purpose, developed a drill bit device suitable for sandy cobble stratum to combine the drill bit device of research and development to propose the method of creeping into, the embodiment of the utility model provides a following technical scheme:
according to a first aspect of the embodiments of the present invention, a drill bit device suitable for a sandy gravel stratum comprises a first drill rod and a drill bit body; the first drill rod is of a hollow tubular structure, one end of the first drill rod is provided with a first internal thread section, and the other end of the first drill rod is provided with a first external thread section; a plurality of drill bit grooves are formed in the first external thread section, the drill bit body comprises a plurality of drill teeth, the number of the drill teeth is the same as that of the drill bit grooves, the drill bit body is inserted into the drill bit grooves, and the drill teeth and the drill bit grooves are correspondingly arranged.
Further, the drill body comprises three drill teeth, the three drill teeth all extend along the radial direction of the first drill rod, and the included angle between the adjacent drill teeth is 120 degrees.
Furthermore, the top of each drill tooth is provided with a drill top inclined plane, and the drill top inclined plane and the end face of the drill body form a preset angle.
Further, the width of the drill bit groove is 20mm, and the thickness of the drill tooth is 20 mm.
Furthermore, a preset distance is arranged between the top end of the drill body and the top end of the first external thread section.
Further, the preset distance is 10 mm.
Further, the drilling machine further comprises a second drill rod, the second drill rod is of a hollow tubular structure, a second external thread section is arranged at the head end of the second drill rod, a second internal thread section is arranged at the tail end of the second drill rod, and the second external thread section at the head end of the second drill rod is in threaded connection with the first internal thread section of the first drill rod.
And the structure of the third drill rod is completely the same as that of the second drill rod, and the third drill rods are sequentially arranged on a second internal thread section at the tail end of the second drill rod in an end-to-end manner.
Further, the length of the first drill rod is 500 mm.
Further, the length of the second drill rod and the length of the third drill rod are both 1000 mm.
The utility model has the advantages of as follows: compared with the conventional drill, the utility model solves the problems of hole blocking and difficult drilling; the construction period is shortened, and the construction cost is saved; the drill bit device is simple to manufacture and convenient to process, and can be completed on a construction site.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
Fig. 1 is a perspective view of a drill bit device suitable for a sandy gravel stratum according to some embodiments of the present invention.
Fig. 2 is a plan view of a drill bit device suitable for a sandy gravel stratum according to some embodiments of the present invention.
3 fig. 3 3 3 is 3 a 3 cross 3- 3 sectional 3 view 3 a 3- 3 a 3 of 3 the 3 drill 3 bit 3 assembly 3 shown 3 in 3 fig. 3 2 3, 3 wherein 3 the 3 drill 3 bit 3 assembly 3 is 3 adapted 3 for 3 use 3 in 3 a 3 sandy 3 gravel 3 formation 3. 3
Fig. 4 is a schematic plan view of the drill bit body of the drill bit device for sandy gravel stratum according to some embodiments of the present invention.
Fig. 5 is a cross-sectional view B-B of the drill bit device for a sandy gravel stratum provided in fig. 4.
Fig. 6 is a top view of a bit body of a drill bit apparatus suitable for use in a sandy gravel formation according to some embodiments of the present invention.
Fig. 7 is a front view of a bit body of a drill bit apparatus suitable for use in a sandy gravel formation according to some embodiments of the present invention.
Fig. 8 is a second drill rod structure diagram of a drill bit device suitable for a sandy gravel stratum according to some embodiments of the present invention.
In the figure: 1. the drill bit comprises a first drill rod, a first external thread section, a first drill bit body, a first internal thread section, a first drill bit groove, a first drill tooth, a first drill bit groove, a second drill bit groove, a first drill tooth, a first drill bit top inclined plane, a first drill bit groove, a second drill bit inclined plane, a second external thread section, a second internal thread section and a second drill.
Detailed Description
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
As shown in fig. 1 to 5, the drill bit device suitable for the sandy gravel stratum in the embodiment comprises a first drill rod 1 and a drill bit body 3; the first drill rod 1 is of a hollow tubular structure, one end of the first drill rod 1 is provided with a first internal thread section 4, and the other end of the first drill rod 1 is provided with a first external thread section 2; a plurality of drill bit grooves 5 have been seted up to first external screw thread section 2, drill bit body 3 includes a plurality of brill teeth 6, the quantity of brill tooth 6 is the same with the quantity of drill bit groove 5, drill bit body 3 pegs graft in a plurality of drill bit grooves 5, brill tooth 6 and drill bit groove 5 correspond the setting, drill bit groove 5 is the rectangle recess, corresponding brill tooth 6 is the rectangle tooth, the one end welding of a plurality of brill teeth 6 is in the same place, it is fixed through the joint to bore tooth 6 and drill bit groove 5, it is preferred, a plurality of brill teeth 6 are around the even array setting of axis ring shape of drill bit body 3.
The technical effect that this embodiment reaches does: through the embodiment, compared with the conventional drill bit, the problems of hole blockage and difficult drilling are solved; the construction period is shortened, and the construction cost is saved; the drill bit device is simple to manufacture and convenient to process, and can be completed on a construction site.
Example 2
In the present embodiment, a drill bit device suitable for a sandy gravel stratum comprises all the technical features of embodiment 1, in addition, as shown in fig. 3 and fig. 6, the drill bit body 3 comprises three drill teeth 6, the three drill teeth 6 all extend along the radial direction of the first drill rod 1, and the included angle between the adjacent drill teeth 6 is 120 °; as shown in fig. 7, the top of each drill tooth 6 is provided with a drill top bevel 7, and the drill top bevel 7 forms a predetermined angle with the end surface of the drill body 3, for example, the included angle between the top bevel and the end surface of the drill body 3 is 30 °, and any other angle is also possible; the width of the drill bit groove 5 is 20mm, and the thickness of the drill teeth 6 is 20 mm; a preset distance is arranged between the top end of the drill body 3 and the top end of the first external thread section 2, and the preset distance is 10 mm.
The beneficial effects in this embodiment are: according to the embodiment, the number of the drill teeth 6 is three, the included angle between the adjacent drill teeth 6 is 120 degrees, the bit body 3 has more stable performance, all the drill teeth 6 are stressed uniformly in the using process of the bit body 3, the service life of the bit body 3 is prolonged, the processing is simple, and the cost is lower; by arranging the drill top inclined plane 7, the drilling performance of the drill body 3 is enhanced, and the efficiency in the drilling process is improved; through setting up drill bit groove 5 width to 20mm and setting up the thickness of boring tooth 6 to 20mm, improved the standardization level, be convenient for the maintenance of bit body 3 to change, through being provided with the distance of predetermineeing with the top of bit body 3 and the top of first external screw thread section 2, reduced the damage to first external screw thread section 2 in the course of the work.
Example 3
As shown in fig. 8, the drill bit device suitable for a sandy gravel stratum in the present embodiment includes all the technical features of embodiment 2, and in addition, includes a second drill rod 8, the second drill rod 8 is of a hollow tubular structure, a second external thread section 9 is provided at a head end of the second drill rod 8, a second internal thread section 10 is provided at a tail end of the second drill rod 8, and the second external thread section 9 at the head end of the second drill rod 8 is in threaded connection with the first internal thread section 4 of the first drill rod 1.
The beneficial effects in this embodiment are: by providing the second drill rod 8, the adaptability to different depth drill holes is improved.
Example 4
A drill bit device suitable for a sandy gravel stratum as in this embodiment includes all the technical features of embodiment 3, and in addition, includes a plurality of third drill rods, the structure of the third drill rods is completely the same as that of the second drill rod 8, and the plurality of third drill rods are sequentially arranged end to end on the second internal thread section 10 at the tail end of the second drill rod 8.
The beneficial effects in this embodiment are: through setting up a plurality of third drilling rods for the length of drill bit device possesses better practicality according to the arbitrary equipment of demand.
Example 5
As shown in fig. 3 and 4, the drill bit device for sandy gravel stratum in the present embodiment includes all the technical features of embodiment 1, except that the length of the first drill rod 1 is 500mm, and the lengths of the second drill rod 8 and the third drill rod are 1000 mm.
The drilling method of the drill bit device of the present embodiment includes the steps of:
step S1, connecting a second drill rod 8 with the length of 1 meter with a first drill rod 1 with the length of 0.5 meter through a threaded joint, and connecting a second external thread section 9 of the second drill rod 8 with a first internal thread section 4 of the first drill rod 1;
step S2, inserting the bit body 3 into the first external thread section 2 of the first drill rod 1, cutting a drill bit groove 5 with the width of 20mm at intervals of 120 degrees in the first external thread section 2 of the first drill rod 1, wherein the bit body 3 is a three-blade drill bit, the bit body 3 is inserted into the first drill rod 1, and the end face of the bit body 3 is 10mm higher than the end face part of the first external thread section 2 of the first drill rod 1;
step S3, connecting the drilling machine with a second drill rod 8, wherein the second drill rod 8 can be connected with a plurality of third drill rods which are the same as the second drill rod 8;
step S4, the drilling machine rotates forwards to drive the drill rod to drill into a gravel stratum, high-pressure water is injected into the drill rod to mill the drill bit body 3, and gravel in the bottom layer is taken out;
step S5, when the drill bit body 3 is clamped by gravel and the drill bit body 3 of the first drill rod 1 cannot rotate forwards, the drilling machine rotates backwards and then drills forwards, and when the situation is met, the operation is repeated;
and step S6, after drilling is finished, pulling out a plurality of drill rods step by step, and enabling the drill body 3 to be retained in the hole.
The beneficial effects in this embodiment are: through setting up the length of first drilling rod 1, second drilling rod 8 and third drilling rod to the fixed value, improved the convenience of accomodating, and have better equipment performance, through above-mentioned method, reduced construction period, practiced thrift construction cost, accomplish different field assembly according to the demand.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
In the present specification, the terms "upper", "lower", "left", "right", "middle", and the like are used for the sake of clarity only, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof are also considered to be the scope of the present invention without substantial changes in the technical content.
Claims (10)
1. A drill bit device suitable for use in sandy and pebbly formations, comprising a first drill rod (1) and a drill bit body (3); the first drill rod (1) is of a hollow tubular structure, one end of the first drill rod (1) is provided with a first internal thread section (4), and the other end of the first drill rod (1) is provided with a first external thread section (2); a plurality of drill bit grooves (5) are formed in the first external thread section (2), the drill bit body (3) comprises a plurality of drill teeth (6), the number of the drill teeth (6) is equal to that of the drill bit grooves (5), the drill bit body (3) is inserted into the drill bit grooves (5), and the drill teeth (6) and the drill bit grooves (5) are correspondingly arranged.
2. A drill bit arrangement adapted for use in a sandy and pebbly formation according to claim 1, characterized in that said drill bit body (3) comprises three said drill teeth (6), each of said three drill teeth (6) extending in a radial direction of said first drill rod (1), an angle between adjacent drill teeth (6) being 120 °.
3. A drill bit device suitable for sandy and pebbly ground as claimed in claim 2, wherein the top of each drill tooth (6) is provided with a drill tip inclined surface (7), and the drill tip inclined surface (7) is at a preset angle with the end surface of the drill bit body (3).
4. A drill bit device suitable for sandy and pebbly strata according to claim 1, wherein the width of the drill bit grooves (5) is 20mm, and the thickness of the drill teeth (6) is 20 mm.
5. A drill bit device adapted for use in a sandy and pebbly formation according to claim 1, characterized in that a predetermined distance is provided between the top end of the bit body (3) and the top end of the first external threaded section (2).
6. A drill bit device suitable for use in a sandy and pebbly formation according to claim 5, wherein the predetermined distance is 10 mm.
7. A drill bit device suitable for sandy gravel stratum according to claim 1, further comprising a second drill rod (8), wherein the second drill rod (8) is of a hollow tubular structure, a second external thread section (9) is arranged at the head end of the second drill rod (8), a second internal thread section (10) is arranged at the tail end of the second drill rod (8), and the second external thread section (9) at the head end of the second drill rod (8) is in threaded connection with the first internal thread section (4) of the first drill rod (1).
8. A drill bit assembly adapted for use in a sandy and pebbly formation according to claim 7 further comprising a plurality of third drill rods of substantially the same configuration as the second drill rod (8), the plurality of third drill rods being arranged in series end to end on the second internal thread section (10) at the end of the second drill rod (8).
9. A drill bit arrangement suitable for use in a sandy and pebbly formation according to claim 8, wherein the length of the first drill rod (1) is 500 mm.
10. A drill bit arrangement suitable for use in a sandy and pebbly formation according to claim 9, wherein the second drill rod (8) and the third drill rod are each 1000mm in length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922066648.XU CN211474024U (en) | 2019-11-26 | 2019-11-26 | Drill bit device suitable for sandy cobble stratum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922066648.XU CN211474024U (en) | 2019-11-26 | 2019-11-26 | Drill bit device suitable for sandy cobble stratum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211474024U true CN211474024U (en) | 2020-09-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922066648.XU Active CN211474024U (en) | 2019-11-26 | 2019-11-26 | Drill bit device suitable for sandy cobble stratum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211474024U (en) |
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2019
- 2019-11-26 CN CN201922066648.XU patent/CN211474024U/en active Active
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