Coring bit for geological exploration

Abstract

The coring bit for geological exploration comprises an upper connecting base, an upper caulking groove, a mounting groove and a coring cavity, the upper caulking groove is formed in the upper end of the upper connecting base, a connecting rotating head is arranged in the upper caulking groove, a plurality of sets of inner fixing holes are formed in the outer side of the upper end of the upper connecting base, a shell is arranged at the lower end of the upper connecting base, and a coring hole is formed in the shell. Compared with the prior art, the main shaft rod has the advantages that the upper connecting base and the outer shell are used for protecting the connecting rotating head, the meshing fluted disc and the driven fluted disc, the connecting rotating head, the main shaft rod and the driving meshing teeth are used for driving the side shaft rod and the main shaft rod to rotate synchronously, and therefore the main shaft rod can rotate synchronously. The main shaft rod is used for driving the main drill bit to rotate on the inner side of the inner tooth pressing sleeve, the outer auxiliary drill bit is used for conducting synchronous drilling on the outer side of the main drill bit so as to reduce the abrasion degree of the main drill bit, and the inner drill bit is rapidly replaced by using the mounting groove and the multiple sets of bolts.

Description

Technical Field

[0001] The utility model belongs to the technical field of geological exploration and relates to a coring drill bit for geological exploration. Background Art

[0002] In geological exploration, the purpose of the drill bit working continuously and stably is to obtain accurate information about the underground rock formations. The drill bit needs to maintain stable cutting performance during the drilling process to avoid damaging the core, causing excessive errors, and ensure that the collected data is accurate and reliable. Continuous and stable operation helps to ensure that the drill bit always maintains good performance throughout the exploration process, thereby improving exploration efficiency and accuracy. The role of the drill bit is crucial. It is responsible for breaking the underground rock and paving the way for exploration work. If the use of a single drill bit causes severe wear, it may cause a series of problems.

[0003] First, drill bit wear will lead to reduced drilling efficiency. When the drill bit is worn out, its cutting edge will become blunt, affecting its ability to break rock. This will lead to a decrease in drilling speed and increase drilling time, thereby increasing overall costs. In some complex formations, drill bit wear may even lead to the inability to complete drilling, seriously affecting the progress of exploration work.

[0004] Secondly, drill bit wear increases drilling risks. When the drill bit is severely worn, its stability will be affected, resulting in an increased risk of borehole tilt or collapse. This may not only affect the accuracy of exploration data, but also pose a threat to the safety of drilling equipment and personnel.

[0005] In addition, drill bit wear will also affect the accuracy of exploration data. Drill bit wear will lead to increased fragmentation and incompleteness of the core, which will affect the representativeness of the core and further affect the accuracy of geological analysis. This will have an adverse impact on subsequent mineral resource assessment, engineering design, etc.

[0006] In summary, the large wear of a single drill bit is a problem that cannot be ignored in geological exploration. Therefore, there is an urgent need for a coring drill bit for geological exploration to solve the above problems. Utility Model Content

[0007] In view of the deficiencies in the prior art, the utility model aims to provide a coring drill bit for geological exploration to solve the problems raised in the above-mentioned background technology.

[0008] The utility model is realized by the following technical scheme: a coring drill bit for geological exploration, comprising: an upper connecting seat, an upper embedding groove, a mounting groove and a coring cavity, wherein an upper embedding groove is provided at the upper end of the upper connecting seat, and a connecting rotary head is provided inside the upper embedding groove;

[0009] The upper end of the upper connecting seat is provided with a plurality of groups of internal fixing holes on the outer side, the lower end of the upper connecting seat is provided with a shell, the lower end of the shell is provided with an inner gear pressing sleeve, the inner side of the inner gear pressing sleeve is provided with an inner drill bit, the left side of the inner shell is provided with an axial hole 1, and the right side of the axial hole 1 is provided with an axial hole 2;

[0010] A main shaft rod is arranged inside the axial hole, a side positioning seat is arranged on the outer side of the lower end of the main shaft rod, a plurality of positioning bolts are arranged at the front end of the side positioning seat, a main drill bit is arranged at the lower end of the main shaft rod, a mounting groove is arranged at the lower end of the main drill bit, and the inside of the mounting groove is connected and fixed to the inner drill bit by bolts.

[0011] As a preferred embodiment, the upper connecting seat and the outer shell are fixed by bolts, the interior of the upper connecting seat and the outer shell are both hollow structures, the cross-sectional diameter of the upper embedding groove is larger than the cross-sectional diameter length of the outer side of the connecting screw head, and the upper connecting seat and the outer shell can be used to protect the connecting screw head, the meshing gear disk and the driven gear disk.

[0012] As a preferred embodiment, the lower end of the connecting head is connected and fixed to the main shaft rod, an active tooth is provided at the middle position of the outer side of the main shaft rod, an engaging tooth plate is provided on the outer side of the lower end of the active tooth, and the engaging tooth plate and the main shaft rod are an integrated structure.

[0013] As a preferred embodiment, a driven gear disc is provided on the right side of the driving gear, and a side shaft rod is provided at the lower end of the middle position of the driven gear disc. The side shaft rod and the driven gear disc are an integrated structure, and the side shaft rod and the main shaft rod are arranged in a parallel structure, which can drive the side shaft rod and the main shaft rod to rotate synchronously by connecting the rotating head, the main shaft rod and the driving gear.

[0014] As a preferred embodiment, the lower end of the main shaft rod passes through the inside of the side positioning seat and is connected and fixed thereto by means of several groups of positioning bolts. A thread is provided on the outer side of the lower end of the main shaft rod. The main shaft rod passes through the inside of the upper end of the main drill bit and is connected and fixed thereto by means of a nut. The main drill bit can be driven to rotate inside the internal tooth pressure sleeve by means of the main shaft rod.

[0015] As a preferred embodiment, the side shaft rod passes through the second shaft hole and is fixed to the external auxiliary drill bit by bolts. The external auxiliary drill bit is located at the lower end of the right side of the outer shell, and the height distance between the external auxiliary drill bit and the inner drill bit is 50-70mm. The external auxiliary drill bit can be used to synchronously drill the outside of the main drill bit to reduce the wear of the main drill bit.

[0016] As a preferred embodiment, an insert head is provided on the upper end of the inner drill bit, and the upper end of the insert head is embedded in a plurality of groups of mounting grooves and fixed by a plurality of groups of bolts. The inner drill bit is a hollow drill bit, and the inner drill bit can be quickly replaced through the mounting grooves and a plurality of groups of bolts.

[0017] After adopting the above technical scheme, the beneficial effects of the utility model are: by using the upper connecting seat and the outer shell to protect the connecting head, the meshing gear plate and the driven gear plate, by using the connecting head, the main shaft rod and the active meshing teeth to drive the side shaft rod and the main shaft rod to rotate synchronously, by using the main shaft rod to drive the main drill bit to rotate inside the internal tooth pressure sleeve, by using the external auxiliary drill bit to synchronously drill the outside of the main drill bit to reduce the wear of the main drill bit, and by using the mounting groove and several groups of bolts to quickly replace the inner drill bit. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 This is a front view structural schematic diagram of a coring drill bit for geological exploration according to the utility model;

[0020] Figure 2 It is a schematic diagram of the structure of the transmission mechanism connected to the rotary head and the interior of the shell in a coring drill bit for geological exploration of the utility model;

[0021] Figure 3 This is a front view structural diagram of the main drill bit structure of a coring drill bit for geological exploration of the utility model;

[0022] Figure 4 This is a rear oblique upward structural diagram of the lower end mounting groove of the main drill bit in a coring drill bit for geological exploration of the utility model;

[0023] In the figure: 100-upper connecting seat, 110-upper embedding groove, 120-connecting rotating head, 130-inner fixing hole, 140-housing, 150-inner tooth pressure sleeve, 160-inner drill bit, 170-driving meshing teeth, 180-meshing gear disc, 190-driven gear disc, 200-side shaft rod, 210-axial hole one, 220-axial hole two, 230-main shaft rod, 240-side positioning seat, 250-positioning bolt, 260-main drill bit, 270-cutting and milling blade, 280-coring cavity. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. 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.

[0025] See also Figure 1-Figure 4 A coring drill bit for geological exploration includes: an upper connecting seat 100, an upper embedding groove 110, a mounting groove 270 and a coring cavity 280. The upper connecting seat 100 is provided with an upper embedding groove 110 at the upper end, and a connecting rotary head 120 is provided inside the upper embedding groove 110;

[0026] The upper end of the upper connecting seat 100 is provided with a plurality of groups of internal fixing holes 130 on the outer side, the lower end of the upper connecting seat 100 is provided with a shell 140, the lower end of the shell 140 is provided with an inner gear pressing sleeve 150, the inner side of the inner gear pressing sleeve 150 is provided with an inner drill bit 160, the left side of the inner side of the shell 140 is provided with an axial hole 1 210, and the right side of the axial hole 1 210 is provided with an axial hole 220;

[0027] A main shaft rod 230 is provided inside the axial hole 210, a side positioning seat 240 is provided on the outer side of the lower end of the main shaft rod 230, a plurality of positioning bolts 250 are provided at the front end of the side positioning seat 240, a main drill bit 260 is provided at the lower end of the main shaft rod 230, a mounting groove 270 is provided at the lower end of the main drill bit 260, and the inside of the mounting groove 270 is fixed to the inner drill bit 160 by bolts.

[0028] The upper connecting seat 100 and the outer shell 140 are fixed by bolts. The interior of the upper connecting seat 100 and the outer shell 140 are both hollow structures. The cross-sectional diameter of the upper embedding groove 110 is larger than the length of the outer cross-sectional diameter of the connecting screw head 120. The upper connecting seat 100 and the outer shell 140 can protect the connecting screw head 120, the meshing gear plate 180 and the driven gear plate 190.

[0029] The lower end of the connecting head 120 is connected and fixed to the main shaft 230. The main shaft 230 has an active tooth 170 in the middle of the outer side. The lower end of the active tooth 170 has an engaging tooth plate 180. The engaging tooth plate 180 and the main shaft 230 are an integrated structure.

[0030] A driven gear disc 190 is provided on the right side of the driving gear 170, and a side shaft rod 200 is provided at the lower end of the middle position of the driven gear disc 190. The side shaft rod 200 and the driven gear disc 190 are an integrated structure, and the side shaft rod 200 and the main shaft rod 230 are arranged in a parallel structure, which can drive the side shaft rod 200 and the main shaft rod 230 to rotate synchronously by connecting the rotary head 120, the main shaft rod 230 and the driving gear 170.

[0031] The lower end of the main shaft rod 230 passes through the inside of the side positioning seat 240 and is connected and fixed thereto by a plurality of groups of positioning bolts 250. A thread is provided on the outer side of the lower end of the main shaft rod 230. The main shaft rod 230 passes through the inside of the upper end of the main drill bit 260 and is connected and fixed thereto by a nut. The main shaft rod 230 can drive the main drill bit 260 to rotate inside the inner tooth pressure sleeve 150.

[0032] The side shaft rod 200 passes through the interior of the second shaft hole 220 and is fixed to the external auxiliary drill bit by bolts. The external auxiliary drill bit is located at the lower end of the right side of the outer shell 140, and the height distance between the external auxiliary drill bit and the inner drill bit 160 is 50-70mm. The external auxiliary drill bit can be used to synchronously drill the outside of the main drill bit 260 to reduce the wear of the main drill bit 260.

[0033] See also Figure 1-Figure 4 As the first embodiment of the utility model: in order to solve the problem that drill bit wear will lead to reduced drilling efficiency, after the drill bit is worn and fails, its cutting edge will become blunt, affecting its ability to break rocks, which will lead to a decrease in drilling speed and increase drilling time, thereby increasing the overall cost, firstly, the staff installs the utility model at the lower end of the drill bit frame of the geological exploration equipment, and connects the power to the connecting rotary head 120 through an external motor as a power source, and the external motor drives the connecting rotary head 120, the main shaft rod 230, the meshing gear disc 180 and the driven gear The disk 190 rotates together, and then the driven gear disk 190 rotates to drive the side shaft rod 200 to rotate. Since the side shaft rod 200 passes through the inside of the shaft hole 220 and is fixed to the external auxiliary drill bit by bolts, the external auxiliary drill bit is located at the lower end of the right side of the shell 140, and the height distance between the external auxiliary drill bit and the inner drill bit 160 is 50-70mm. When the main shaft rod 230 drives the main drill bit 260 to drill underground, the side shaft rod 200 drives the external auxiliary drill bit to assist in drilling the outside of the main drill bit 260 to improve the drilling efficiency of the main drill bit 260.

[0034] An insert head is provided at the upper end of the inner drill bit 160, and the upper end of the insert head is embedded in a plurality of groups of mounting grooves 270 and fixed by a plurality of groups of bolts. The inner drill bit 160 is a hollow drill bit, and the inner drill bit 160 can be quickly replaced through the mounting grooves 270 and a plurality of groups of bolts.

[0035] See also Figure 1-Figure 4, as the second embodiment of the utility model: based on the description in the above embodiment, further, when the main drill bit 260 performs underground drilling work, the connecting seat 100 and the outer shell 140 thereon can prevent underground dust, soil and gravel from entering the interior of the outer shell 140 and affecting the power transmission of the main shaft 230 and the secondary shaft. When the staff needs to replace the inner drill bit 160, they only need to remove several groups of bolts inside the mounting groove 270 to quickly replace the inner drill bit 160, so as to reduce the time and economic cost consumed by the wear, maintenance and replacement of the inner drill bit 160.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A coring drill bit for geological exploration, comprising: An upper connecting seat (100), an upper embedding groove (110), a mounting groove (270) and a coring cavity (280), characterized in that: an upper embedding groove (110) is provided at the upper end of the upper connecting seat (100), and a connecting screw head (120) is provided inside the upper embedding groove (110); A plurality of groups of internal fixing holes (130) are provided on the outer side of the upper end of the upper connecting seat (100); a housing (140) is provided on the lower end of the upper connecting seat (100); an inner gear pressing sleeve (150) is provided on the lower end of the housing (140); an inner drill bit (160) is provided on the inner side of the inner gear pressing sleeve (150); an axial hole 1 (210) is provided on the left side of the housing (140); and an axial hole 2 (220) is provided on the right side of the axial hole 1 (210); A main shaft rod (230) is provided inside the first axial hole (210), a side positioning seat (240) is provided on the outer side of the lower end of the main shaft rod (230), a plurality of groups of positioning bolts (250) are provided at the front end of the side positioning seat (240), a main drill bit (260) is provided at the lower end of the main shaft rod (230), a mounting groove (270) is provided at the lower end of the main drill bit (260), and the inside of the mounting groove (270) is connected and fixed to the inner drill bit (160) by bolts.

2. A coring drill bit for geological exploration according to claim 1, characterized in that: The upper connecting seat (100) and the outer shell (140) are fixed by bolt connection; the interior of the upper connecting seat (100) and the interior of the outer shell (140) are both hollow structures; the cross-sectional diameter of the upper embedding groove (110) is greater than the length of the cross-sectional diameter of the outer side of the connecting screw head (120).

3. A coring drill bit for geological exploration according to claim 2, characterized in that: The lower end of the connecting rotary head (120) is connected and fixed to the main shaft rod (230), an active tooth (170) is provided at the middle position outside the main shaft rod (230), and an engaging toothed disc (180) is provided outside the lower end of the active toothed disc (170), and the engaging toothed disc (180) and the main shaft rod (230) are an integrated structure.

4. A coring drill bit for geological exploration according to claim 3, characterized in that: A driven toothed disc (190) is provided on the right side of the driving tooth (170), a side shaft rod (200) is provided at the lower end of the middle position of the driven toothed disc (190), the side shaft rod (200) and the driven toothed disc (190) are an integrated structure, and the side shaft rod (200) and the main shaft rod (230) are arranged in a parallel structure.

5. A coring drill bit for geological exploration according to claim 4, characterized in that: The lower end of the main shaft rod (230) passes through the interior of the side positioning seat (240) and is connected and fixed thereto via a plurality of sets of positioning bolts (250). The outer side of the lower end of the main shaft rod (230) is provided with a thread. The main shaft rod (230) passes through the interior of the upper end of the main drill bit (260) and is connected and fixed thereto via a nut.

6. A coring drill bit for geological exploration according to claim 4, characterized in that: The side shaft rod (200) passes through the interior of the second shaft hole (220) and is fixed to the external auxiliary drill bit by means of bolts. The external auxiliary drill bit is located at the lower right end of the housing (140) and has a height distance of 50-70 mm from the internal drill bit (160).

7. A coring drill bit for geological exploration according to claim 6, characterized in that: An insert head is provided at the upper end of the inner drill bit (160); the upper end of the insert head is embedded in a plurality of groups of mounting grooves (270) and is fixed by a plurality of groups of bolts; the inner drill bit (160) is a hollow drill bit.

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