A geological exploration drill bit replacement device

Abstract

This utility model relates to the field of geological exploration technology and discloses a geological exploration drill bit replacement device, including a drill rod, a bearing fixedly installed at the top of the drill rod, a drill bit installed at the bottom of the drill rod, a fixing rod fixedly installed at the top of the drill rod, and a fixing component for easy disassembly and assembly of the drill bit at the bottom of the drill rod. This geological exploration drill bit replacement device, through the setting of the fixing component, can supply power to the electromagnet, causing it to generate a strong magnetic force, forming a magnetic attraction and fixing of the drill bit made of tungsten-cobalt alloy components. The magnetic force characteristics offset some of the vibration impact force, avoiding the elasticity decay of traditional springs due to long-term stress. On the other hand, through the setting of the locking bolt, anti-slip plate, and locking nut, the drill bit and drill rod can be rigidly connected. The superposition of the double fixing structure can effectively resist severe vibration during drilling, reducing the risk of exploration probe slippage and significantly improving the reliability of exploration in complex strata.

Description

Technical Field

[0001] This utility model relates to the field of geological exploration technology, and in particular to a geological exploration drill bit replacement device. Background Technology

[0002] Hydrogeology and environmental geology refer to hydrogeology, engineering geology, and environmental geology. Hydrogeology is the science that studies groundwater; it mainly studies the distribution and formation patterns of groundwater, the physical properties and chemical composition of groundwater, groundwater resources and their rational utilization, and the adverse effects of groundwater on engineering construction and mining and their prevention and control. Drilling rigs are used in the process of hydrogeological exploration. After a long period of use, the drill bits of the drilling rigs need to be replaced. Therefore, geological exploration drill bit replacement devices are often used by personnel during work.

[0003] A drilling bit replacement device for hydrogeological exploration disclosed in CN215927286U can fix the position of the drill bit body by setting a fixing block, fixing groove, sliding groove, rotating groove, pull column and through hole. The fixing method is simple and does not require bolt fixing, which improves the assembly efficiency. The disassembly method is simple and efficient, which facilitates later maintenance.

[0004] However, this hydrogeological drilling bit replacement device has the following disadvantages:

[0005] (1) The above-mentioned geological exploration drill bit adopts a spring mounting structure. However, during the actual drilling process, the drill bit is prone to violent shaking. This shaking will directly affect the spring mounting part, causing the spring force to decrease or the mounting gap to increase, which in turn leads to the risk of the exploration probe sliding out of the mounting structure, which not only interrupts the exploration operation but may also cause damage to the probe.

[0006] (2) When drilling into abrasive formations such as sandstone and granite, a large amount of dust will be generated. This dust will spread rapidly into the working environment, which will pollute the air and endanger the health of the operators. Utility Model Content

[0007] (a) Technical problems to be solved

[0008] The technical problem solved by this utility model is to provide a geological exploration drill bit replacement device that is highly practical, easy to operate, and has a simple structure, thus solving the problems of insufficient stability of the spring mounting structure and lack of dustproof structure mentioned in the background art.

[0009] (II) Technical Solution

[0010] To achieve the above objectives, this utility model is implemented through the following technical solution: a geological exploration drill bit replacement device, including a drill rod, a bearing fixedly installed at the top of the drill rod, a drill bit provided at the bottom of the drill rod, a fixing rod fixedly installed at the top of the drill rod, a fixing component for easy disassembly and assembly of the drill bit provided at the bottom of the drill rod, and a dustproof component provided on the outer periphery of the fixing rod;

[0011] The fixing assembly includes a through hole inside the drill bit, a slot at the bottom of the drill rod for use with the drill bit, a locking bolt inserted inside the drill rod, an anti-dislodgement plate sleeved on the outer periphery of one end of the locking bolt, a locking nut threaded to one end of the locking bolt, a power supply box built inside the drill rod and above the slot, an electromagnet fixedly installed on the inner wall of the slot, and the locking bolt passing through the interior of the through hole;

[0012] The dustproof assembly includes a mounting plate disposed on the outer periphery of a fixed rod. Several limiting rods are slidably connected inside the mounting plate. An abutting ring is fixedly connected between the several limiting rods. A spring is sleeved on the outer periphery of each limiting rod. A corrugated protective tube is fixedly connected between the abutting ring and the mounting plate.

[0013] Optionally, both sides of the drill bit are fixedly connected with mating strips, and the fixing assembly has a mating groove inside that works with the mating strips to improve the assembly efficiency of the drill bit.

[0014] Optionally, an outer cylinder is fixedly connected to the outside of the fixing component, and a protective nut is threaded onto the outer cylinder to protect the anti-detachment plate and the locking nut. The anti-detachment plate, the locking nut, and the outer wall of the drill rod abut against each other.

[0015] Optionally, a bearing is fixedly installed inside the mounting plate, and the mounting plate is installed on the outer periphery of the fixing rod through the bearing to prevent the dustproof component from rotating simultaneously with the fixing rod.

[0016] Optionally, the spring abuts against the clamping ring and the mounting plate, and the drill bit is made of tungsten-cobalt alloy components to ensure the wear resistance and hardness of the drill bit.

[0017] Optionally, the top of each limiting rod is threaded with a limiting nut, and the top of the fixing rod is provided with an assembly groove to facilitate the replacement of components inside the dustproof assembly by the staff.

[0018] (III) Beneficial Effects

[0019] This utility model provides a geological exploration drill bit replacement device, which has the following beneficial effects:

[0020] 1. This geological exploration drill bit replacement device, through the setting of the fixing components, can power the electromagnet and make it generate a strong magnetic force to magnetically fix the drill bit made of tungsten cobalt alloy components. The magnetic force characteristics are used to offset part of the vibration impact force, avoiding the elasticity decay of traditional springs due to long-term stress. On the other hand, through the setting of locking bolt, anti-slip plate and locking nut, the drill bit and drill rod can be rigidly connected. The double fixing structure can effectively resist the severe vibration during drilling, reduce the risk of exploration probe slippage, and significantly improve the reliability of complex strata exploration.

[0021] 2. This geological exploration drill bit replacement device, in conjunction with the dustproof components, can flexibly extend and retract with the movement of the clamping ring, and completely cover the working area where the drill bit contacts the formation, so as to reduce the spread of dust from the gaps and protect the operators from dust hazards. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0023] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the dustproof component of this utility model;

[0025] Figure 4 For the present utility model Figure 2 Enlarged view of point A in the middle.

[0026] In the diagram: 1. Drill rod; 2. Drill bit; 3. Fixing rod; 4. Bearing; 5. Dustproof assembly; 501. Mounting plate; 502. Limiting rod; 503. Spring; 504. Clamping ring; 505. Corrugated protective tube; 6. Fixing assembly; 601. Power supply box; 602. Electromagnet; 603. Locking bolt; 604. Anti-detachment plate; 605. Locking nut; 606. Through hole; 7. Connecting groove; 8. Connecting strip; 9. Protective nut; 10. Limiting nut. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0028] Please see Figures 1 to 4This utility model provides a technical solution: a geological exploration drill bit replacement device, including a drill rod 1, a bearing 4 fixedly installed at the top of the drill rod 1, a drill bit 2 provided at the bottom of the drill rod 1, a fixing rod 3 fixedly installed at the top of the drill rod 1, a fixing component 6 for easy disassembly and assembly of the drill bit 2 provided at the bottom of the drill rod 1, and a dustproof component 5 provided on the outer periphery of the fixing rod 3.

[0029] The fixing component 6 includes a through hole 606 inside the drill bit 2, a slot at the bottom of the drill rod 1 for use with the drill bit 2, a locking bolt 603 inserted inside the drill rod 1, an anti-dislodgement plate 604 sleeved on the outer periphery of one end of the locking bolt 603, and a locking nut 605 threaded to the other end of the locking bolt 603. A power supply box 601 is built inside the drill rod 1 and above the slot. An electromagnet 602 is fixedly installed on the inner wall of the slot. The locking bolt 603 passes through the through hole 606. When the drill bit 2 is inserted into the slot in the drill rod 1, it can be powered... The housing 601 provides power to the electromagnet 602, enabling it to generate a strong magnetic force that magnetically holds the drill bit 2, which is made of tungsten-cobalt alloy components, in place. This magnetic force helps to offset some of the vibration impact, preventing the spring force of the traditional spring 503 from weakening due to long-term stress. On the other hand, the locking bolt 603, the anti-detachment plate 604, and the locking nut 605 rigidly connect the drill bit 2 to the drill rod 1. This double-fixing structure effectively resists severe vibrations during drilling, reducing the risk of the exploration probe slipping out and significantly improving the reliability of exploration in complex formations.

[0030] The dustproof component 5 includes a mounting plate 501 disposed on the outer periphery of the fixed rod 3. Several limiting rods 502 are slidably connected inside the mounting plate 501. A retaining ring 504 is fixedly connected between the several limiting rods 502. A spring 503 is sleeved on the outer periphery of each limiting rod 502. A corrugated protective tube 505 is fixedly connected between the retaining ring 504 and the mounting plate 501. Through the cooperation of the limiting rods 502, springs 503 and corrugated protective tube 505, it can flexibly extend and retract with the movement of the retaining ring 504, and completely cover the working area where the drill bit 2 contacts the formation, so as to reduce the diffusion of dust from the gaps and protect the operator from dust hazards.

[0031] Both sides of the drill bit 2 are fixedly connected with mating strips 8. The fixing component 6 has a mating groove 7 inside that works with the mating strips 8. The mating strips 8 and the mating groove 7 work together to play an important positioning role for the drill bit 2, thereby improving the assembly efficiency of the drill bit 2 and further limiting the axial displacement of the drill bit 2.

[0032] An outer cylinder is fixedly connected to the outside of the fixing component 6. The outer cylinder is threadedly connected to a protective nut 9. The anti-detachment plate 604, the locking nut 605 and the outer wall of the drill rod 1 abut against each other, making the connection between the drill bit 2 and the drill rod 1 more secure during use.

[0033] The mounting plate 501 has a bearing 4 fixedly installed inside. The mounting plate 501 is installed on the outer periphery of the fixing rod 3 through the bearing 4. The bearing 4 can prevent the dustproof component 5 from rotating with the fixing rod 3, so as to ensure the normal use of the dustproof component 5.

[0034] Spring 503 abuts against the clamping ring 504 and mounting plate 501. Drill bit 2 is made of tungsten cobalt alloy. Drill bit 2, which is made of tungsten cobalt alloy, can be attracted to electromagnet 602 and can ensure the wear resistance and hardness of drill bit 2.

[0035] The top of each limiting rod 502 is threaded with a limiting nut 10, and the top of the fixing rod 3 is provided with an assembly groove. By setting the limiting nut 10, the extension distance of the limiting rod 502 can be limited, and at the same time, it is convenient for staff to replace the parts inside the dustproof assembly 5.

[0036] In this invention, the working steps of the device are as follows:

[0037] First step: When installing drill bit 2, the new drill bit 2 can be inserted into the slot in drill rod 1. Through the setting of power supply box 601, power can be supplied to electromagnet 602 to generate strong magnetic force, which forms a magnetic attraction and fixation on drill bit 2, which is made of tungsten cobalt alloy components. The magnetic force characteristics are used to offset part of the vibration impact force. Through the setting of locking bolt 603, anti-detachment plate 604 and locking nut 605, drill bit 2 and drill rod 1 can be rigidly connected. The double fixing structure can effectively resist the severe vibration during drilling, reduce the risk of exploration probe slippage, and significantly improve the reliability of complex strata exploration.

[0038] The second step: When drilling into abrasive surfaces such as sandstone and granite, the limit rod 502, spring 503 and corrugated protective tube 505 can be used together and can be flexibly extended and retracted with the movement of the clamping ring 504, so as to completely cover the working area where the drill bit 2 is in contact with the formation, thereby reducing the spread of dust from the gaps and protecting the operators from dust hazards.

[0039] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0040] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0041] It will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A geological survey drill bit changing device comprising a drill rod (1), characterized in that: A bearing (4) is fixedly installed at the top of the drill rod (1), a drill bit (2) is provided at the bottom of the drill rod (1), a fixing rod (3) is fixedly installed at the top of the drill rod (1), a fixing component (6) is provided at the bottom of the drill rod (1) to facilitate the assembly and disassembly of the drill bit (2), and a dustproof component (5) is provided on the outer periphery of the fixing rod (3). The fixing component (6) includes a through hole (606) opened inside the drill bit (2), and a slot for cooperating with the drill bit (2) is opened at the bottom of the drill rod (1). A locking bolt (603) is inserted into the drill rod (1). An anti-detachment plate (604) is sleeved on the outer periphery of one end of the locking bolt (603). A locking nut (605) is threaded to one end of the locking bolt (603). A power supply box (601) is built inside the drill rod (1) and above the slot. An electromagnet (602) is fixedly installed on the inner wall of the slot. The locking bolt (603) passes through the inside of the through hole (606). The dustproof component (5) includes a mounting plate (501) disposed on the outer periphery of the fixed rod (3). A plurality of limiting rods (502) are slidably connected inside the mounting plate (501). A retaining ring (504) is fixedly connected between the plurality of limiting rods (502). A spring (503) is sleeved on the outer periphery of each limiting rod (502). A corrugated protective tube (505) is fixedly connected between the retaining ring (504) and the mounting plate (501).

2. The geological survey drill bit changing device of claim 1, wherein: Both sides of the drill bit (2) are fixedly connected with mating strips (8), and the fixing component (6) has a mating groove (7) inside that works with the mating strips (8).

3. The geological survey drill bit changing device of claim 1, wherein: An outer cylinder is fixedly connected to the outside of the fixing component (6), and a protective nut (9) is threadedly connected to the outer cylinder. The anti-detachment plate (604), the locking nut (605), and the outer wall of the drill rod (1) abut against each other.

4. The geological survey drill bit changing device of claim 1, wherein: The mounting plate (501) is internally fixedly equipped with a bearing (4), and the mounting plate (501) is mounted on the outer periphery of the fixing rod (3) via the bearing (4).

5. The geological survey drill bit changing device of claim 1, wherein: The spring (503) abuts against the clamping ring (504) and the mounting plate (501), and the drill bit (2) is made of tungsten-cobalt alloy.

6. The geological exploration drill bit replacement device according to claim 1, characterized in that: The top of each limiting rod (502) is threaded with a limiting nut (10), and the top of the fixing rod (3) is provided with an assembly groove.

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