Diamond drill bit for geological exploration

Abstract

The utility model relates to the technical field of geological exploration, and discloses a diamond drill bit for geological exploration, which comprises a drill rod, a connecting rod movably mounted at the left end of the drill rod, a connecting block arranged at the left end of the connecting rod, a disc fixedly mounted on the left side of the connecting block, and a drill bit fixedly mounted on the left side of the disc. A plurality of installation grooves are formed in the drill bit, diamond teeth are fixedly installed in the installation grooves, a plurality of chip grooves which are evenly distributed are formed in the drill bit, and the chip grooves are each of a spiral structure. The drill bit has the advantages that resistance during drilling and cutting of the drill bit can be reduced, chip removal capacity is improved, drilling and cutting speed and efficiency of the drill bit are greatly improved, the connecting rod and the drill rod can be conveniently connected, time is saved, connection of the connecting rod and the drill rod is further reinforced, and the connecting rod is prevented from slipping during drilling and cutting.

Description

Technical Field

[0001] The utility model relates to the technical field of geological exploration, in particular to a diamond drill bit for geological exploration. Background Art

[0002] The drill bit with cutting edge is called diamond drill bit. This drill bit is an integrated drill bit. The whole drill bit has no moving parts and a relatively simple structure. It has high strength, high wear resistance and impact resistance. It is one of the three new drilling technologies in the world in the 1980s. Field use has proved that diamond drill bits have the advantages of fast speed, high footage, long life, stable operation, few downhole accidents and good wellbore quality when drilling in soft, medium and hard formations. Diamond drill bits not only have a long service life, but can also be reused. The diamond drill bits that have been returned to the factory for repair have the same effect as the diamond drill bits that left the factory, which can save a lot of drilling costs.

[0003] In the prior art, a Chinese patent with the announcement number CN207643439U discloses a diamond drill bit, including a connector, a cylindrical steel body and a plurality of cutter heads. A connector with a threaded connection to an engineering drill rig at one end of the steel body is provided, and an annular boss is provided at the other end of the steel body. The cutter heads are evenly welded and fixed on the outer end surface of the annular boss and arranged around the central axis of the annular boss. The cutter head is in an arc-shaped agglomerated corrugated shape, and the cutting end surface of the cutter head is a plurality of bosses and grooves, and the bosses and grooves are continuously arranged in a corrugated shape; there are two rows of turbine grooves on the outer side of the cutter head, and each turbine groove in the outer end row is connected to the boss, and the two rows of turbine grooves on the outer side of the cutter head are staggered and not connected to each other. Although the drill bit can enhance the chip removal speed of the diamond drill bit during the drilling process, the flat-top annular boss increases the resistance of the drilling process, affecting the drilling speed and efficiency of the diamond drill bit.

[0004] Therefore, it is necessary to design a diamond drill bit for geological exploration that can reduce drilling resistance and improve drilling speed and efficiency. Utility Model Content

[0005] The utility model aims to provide a diamond drill bit for geological exploration, which has the effect of reducing drilling resistance and improving drilling speed and efficiency.

[0006] The above technical purpose of the utility model is achieved through the following technical scheme: a diamond drill bit for geological exploration, including a drill rod, a connecting rod is movably installed on the left end of the drill rod, a connecting block is arranged on the left end of the connecting rod, a disc is fixedly installed on the left side of the connecting block, and a drill bit is fixedly installed on the left side of the disc.

[0007] By adopting the above technical solution, the connecting rod can be conveniently connected to the drill rod, thereby saving the time for installing the drill bit and improving work efficiency.

[0008] The utility model is further configured as follows: the drill bit is in a semi-ellipsoidal structure, a plurality of mounting grooves are provided on the drill bit, and diamond teeth are fixedly installed in the plurality of mounting grooves.

[0009] By adopting the above technical solution, the semi-ellipsoidal structure can be used to reduce the drilling resistance between the drill bit and the soil and rock formations, thereby greatly improving the drilling speed and efficiency of the drill bit.

[0010] The utility model is further configured as follows: the drill bit is provided with a plurality of chip removal grooves which are evenly distributed.

[0011] By adopting the above technical solution, the chip removal ability of the drill bit during drilling and cutting can be improved, and the drilling and cutting speed and efficiency of the drill bit can be further improved.

[0012] The utility model is further configured as follows: the plurality of chip removal grooves are all in a spiral structure.

[0013] By adopting the above technical solution, the rotation of the drill bit can be conveniently used to force the chips to flow out of the chip discharge groove.

[0014] The utility model is further configured as follows: the connecting block is a truncated cone structure with a larger left side and a smaller right side.

[0015] By adopting the above technical solution, it is possible to facilitate the flow of chips out of the chip discharge groove, thereby improving the drilling efficiency of the drill bit.

[0016] The utility model is further configured as follows: the diameter of the left side of the connecting block is consistent with the diameter of the disc, and the diameter of the right side of the connecting block is consistent with the diameter of the connecting rod.

[0017] By adopting the above technical solution, the connecting rod can be effectively protected, avoiding the connecting rod from rubbing against the soil and rock formations for a long time, thereby extending the service life of the connecting rod.

[0018] The utility model is further configured as follows: two spiral edges that are evenly distributed are fixedly mounted on the annular outer wall of the connecting rod.

[0019] By adopting the above technical solution, the drilling and cutting ability of the drill bit can be further improved by utilizing the spiral edge, and the rotation of the spiral edge can be utilized to transport the debris generated by the drilling and cutting to the surface.

[0020] The utility model is further configured as follows: a thread groove is provided at the right end of the connecting rod, a connecting head is fixedly installed at the left end of the drill rod, and the connecting head is threadedly installed in the thread groove.

[0021] By adopting the above technical solution, the connecting rod and the drill rod can be easily connected, which saves time and improves work efficiency.

[0022] The utility model is further configured as follows: a countersunk screw hole is provided at the top of the connecting rod, a threaded hole is provided at a relative position at the bottom of the connecting rod, a countersunk bolt is installed in the inner thread of the countersunk screw hole, the bottom end of the countersunk bolt extends into the threaded hole, a through hole is provided on the connecting head, and the countersunk bolt slides through the through hole.

[0023] By adopting the above technical solution, the connection between the connecting rod and the drill rod can be further reinforced to prevent the connecting rod from slipping.

[0024] The utility model is further configured as follows: a connecting block is fixedly installed on the left end of the connecting rod, a connecting groove is opened on the right side of the connecting block, and the connecting block is threadedly installed in the connecting groove.

[0025] By adopting the above technical solution, the drill bit can be easily repaired and replaced, reducing material loss and saving costs.

[0026] The beneficial effects of the utility model are:

[0027] 1. The utility model can reduce the resistance of the drill bit during drilling and cutting, improve the chip removal capacity, and greatly improve the drilling speed and efficiency of the drill bit by utilizing the combined effect of the drill bit, multiple mounting grooves, multiple diamond teeth, multiple chip removal grooves and two spiral edges.

[0028] 2. The utility model can conveniently connect the connecting rod and the drill rod by utilizing the combined effect of the threaded groove, the connecting head, the countersunk screw hole, the threaded hole, the countersunk bolt and the through hole, saving time, and further reinforcing the connection between the connecting rod and the drill rod to prevent the connecting rod from slipping. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 This is a schematic diagram of the three-dimensional structure of this embodiment. Figure 1 .

[0031] Figure 2 It is a schematic diagram of the main cross-sectional structure of this embodiment.

[0032] Figure 3 This is a schematic diagram of the three-dimensional structure of this embodiment. Figure 2 .

[0033] In the figure, 1, drill rod; 2, connecting rod; 3, connecting block; 4, disc; 5, drill bit; 6, mounting groove; 7, diamond tooth; 8, chip groove; 9, spiral edge; 10, threaded groove; 11, connecting head; 12, countersunk screw hole; 13, threaded hole; 14, countersunk bolt; 15, through hole; 16, connecting block; 17, connecting groove. DETAILED DESCRIPTION

[0034] The technical solution of the utility model will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] See also Figure 1 , Figure 2 and Figure 3 The utility model provides a diamond drill bit for geological exploration, including a drill rod 1, a connecting rod 2 is movably installed on the left end of the drill rod 1, a connecting block 3 is arranged on the left end of the connecting rod 2, the connecting block 3 is a truncated cone structure with a larger left side and a smaller right side, the diameter of the left side of the connecting block 3 is consistent with the diameter of the disk 4, the diameter of the right side of the connecting block 3 is consistent with the diameter of the connecting rod 2, a disk 4 is fixedly installed on the left side of the connecting block 3, a drill bit 5 is fixedly installed on the left side of the disk 4, the drill bit 5 is a semi-ellipsoidal structure, a plurality of mounting grooves 6 are provided on the drill bit 5, diamond teeth 7 are fixedly installed in the plurality of mounting grooves 6, a plurality of uniformly distributed chip removal grooves 8 are provided on the drill bit 5, and the plurality of chip removal grooves 8 are all in a spiral structure. The chip removal capacity of the drill bit 5 during drilling and cutting can be improved by the plurality of chip removal grooves 8, and the drilling and cutting speed and efficiency of the drill bit 5 are further improved.

[0036] Specifically, a threaded groove 10 is provided at the right end of the connecting rod 2, and a connecting head 11 is fixedly installed at the left end of the drill rod 1. The connecting head 11 is threadedly installed in the threaded groove 10. A countersunk screw hole 12 is provided at the top of the connecting rod 2, and a threaded hole 13 is provided at a relative position at the bottom of the connecting rod 2. A countersunk bolt 14 is threadedly installed in the countersunk screw hole 12, and the bottom end of the countersunk bolt 14 extends into the threaded hole 13. The countersunk bolt 14 can be used to reinforce the connection between the connecting rod 2 and the drill rod 1 to prevent the connecting rod 2 from slipping. A through hole 15 is provided on the connecting head 11, and the countersunk bolt 14 slides through the through hole 15.

[0037] Specifically, a connecting block 16 is fixedly installed on the left end of the connecting rod 2, a connecting groove 17 is opened on the right side of the connecting block 3, the connecting block 16 is threadedly installed in the connecting groove 17, and two evenly distributed spiral edges 9 are fixedly installed on the annular outer wall of the connecting rod 2. The two spiral edges 9 can further improve the drilling and cutting ability of the drill bit 5, and the rotation of the spiral edges 9 can be used to transport the debris generated by drilling and cutting to the surface.

[0038] Through the above structure, the diamond drill bit for geological exploration provided by the utility model can reduce the resistance of the drill bit 5 during drilling and cutting, improve the chip removal ability, greatly improve the drilling speed and efficiency of the drill bit 5, and can also conveniently connect the connecting rod 2 and the drill rod 1, saving time, and further reinforce the connection between the connecting rod 2 and the drill rod 1 to prevent the connecting rod 2 from slipping during drilling and cutting. During specific use, the connecting head 11 on the drill rod 1 is inserted into the threaded groove 10 and tightened, and then the countersunk bolt 14 is threadedly installed in the countersunk screw hole 12 to further reinforce the connection between the connecting rod 2 and the drill rod 1, and then the connecting block 3 is threadedly installed on the connecting block 16 through the connecting groove 17, so that the drill bit 5 can be used for drilling and cutting. During the drilling and cutting process, the debris generated by drilling and cutting can be conveniently discharged by dragging through multiple chip removal grooves 8, further improving the drilling and cutting ability of the drill bit 5. At the same time, the two spiral edges 9 can timely transport the debris discharged from the chip removal groove 8 to the surface during the rotation of the connecting rod 2, once again improving the drilling and cutting ability of the drill bit 5.

[0039] The above is a detailed introduction to a diamond drill bit for geological exploration provided by the utility model. This article uses specific embodiments to explain the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A diamond drill bit for geological exploration, characterized in that: The invention comprises a drill rod (1), a connecting rod (2) is movably mounted on the left end of the drill rod (1), a connecting block (3) is arranged on the left end of the connecting block (3), a disc (4) is fixedly mounted on the left side of the connecting block (3), a drill bit (5) is fixedly mounted on the left side of the disc (4), the drill bit (5) is in a semi-ellipsoidal structure, a plurality of mounting grooves (6) are provided on the drill bit (5), diamond teeth (7) are fixedly mounted in the plurality of mounting grooves (6), a plurality of evenly distributed chip removal grooves (8) are provided on the drill bit (5), and two evenly distributed spiral edges (9) are fixedly mounted on the annular outer wall of the connecting rod (2).

2. A diamond drill bit for geological exploration according to claim 1, characterized in that: The plurality of chip removal grooves (8) are all in a spiral structure.

3. A diamond drill bit for geological exploration according to claim 1, characterized in that: The connecting block (3) is a truncated cone structure with a larger left side and a smaller right side.

4. A diamond drill bit for geological exploration according to claim 1, characterized in that: The diameter of the left side of the connecting block (3) is consistent with the diameter of the disc (4), and the diameter of the right side of the connecting block (3) is consistent with the diameter of the connecting rod (2).

5. A diamond drill bit for geological exploration according to claim 1, characterized in that: The right end of the connecting rod (2) is provided with a thread groove (10), and the left end of the drill rod (1) is fixedly mounted with a connecting head (11), and the connecting head (11) is threadedly mounted in the thread groove (10).

6. A diamond drill bit for geological exploration according to claim 5, characterized in that: A countersunk screw hole (12) is provided at the top of the connecting rod (2), and a threaded hole (13) is provided at a relatively lower position of the connecting rod (2). A countersunk bolt (14) is installed in the internal thread of the countersunk screw hole (12), and the bottom end of the countersunk bolt (14) extends into the threaded hole (13). A through hole (15) is provided on the connecting head (11), and the countersunk bolt (14) slides through the through hole (15).

7. A diamond drill bit for geological exploration according to claim 1, characterized in that: A connecting block (16) is fixedly mounted on the left end of the connecting rod (2), a connecting groove (17) is provided on the right side of the connecting block (3), and the connecting block (16) is threadedly mounted in the connecting groove (17).

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