A high-precision guide drill bit that can adapt to ultra-high temperatures

Abstract

The present invention discloses a high-precision guide drill bit that can adapt to ultra-high temperatures, and relates to the technical field of guide drill bits. The present invention comprises a guide drill bit main body, wherein a water spray cooling mechanism is arranged inside the guide drill bit main body, and a self-cooling mechanism is arranged inside the guide drill bit main body. The water spray cooling mechanism comprises a protective unit, which is arranged inside the guide drill bit main body and can protect the water spray device. The water spray cooling mechanism comprises a water spray unit, which is arranged inside the guide drill bit main body. The water spray unit and the protective unit cooperate with each other, so as to achieve a high-precision guide drill bit that can adapt to ultra-high temperatures. By arranging the mutual cooperation among the protective unit, the water spray unit and the self-cooling mechanism, it is avoided that when the temperature of the drill bit is too high, it is necessary to lift it to the ground and spray water to cool it down. Only after cooling down can the drilling work be continued. If it is not cooled down, the service life of the drill hole will be reduced, thereby seriously affecting the drilling efficiency of the drill bit.

Description

Technical Field

[0001] The invention relates to the technical field of guide drill bits, in particular to a high-precision guide drill bit capable of adapting to ultra-high temperatures. Background Art

[0002] A guide drill bit is a tool specially used for guided drilling. It has a special structure and design that can guide the drill bit to drill in a specific direction, thereby improving the accuracy and efficiency of drilling. The guide drill bit mainly consists of two parts: the drill bit and the guide device. The drill bit is used to drill directly into the formation, while the guide device is used to control the direction and depth of the drill bit.

[0003] At present, the existing guide drill bit will generate a lot of high temperature during use. If the drill bit continues to drill in a high temperature environment, the overall structural stability of the drill bit will be reduced. When the temperature of the drill bit is too high, it needs to be lifted to the ground and sprayed with water to cool it down. Only after cooling it down can the drilling work continue. If it is not cooled down, the service life of the drill hole will be reduced, thus seriously affecting the drilling efficiency of the drill bit.

[0004] Combining the above problems, we will find that it is difficult to avoid the above problems at the same time when using the existing high-precision guide drill bits on the market that can adapt to ultra-high temperatures. Even if they can be solved, they need to be solved with the help of external tools, which makes it impossible to achieve the desired effect. Therefore, we propose a high-precision guide drill bit that can adapt to ultra-high temperatures. Summary of the Invention

[0005] The purpose of the present invention is to provide a high-precision guide drill bit that can adapt to ultra-high temperatures, so as to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a high-precision pilot drill bit capable of adapting to ultra-high temperatures, comprising a pilot drill bit body, a water spray cooling mechanism provided inside the pilot drill bit body, and a self-cooling mechanism provided inside the pilot drill bit body;

[0007] The water spray cooling mechanism includes a protection unit, which is arranged inside the pilot drill body and can protect the water spray device;

[0008] The water spray cooling mechanism includes a water spray unit, which is arranged inside the pilot drill bit body and cooperates with the protection unit. The water spray unit can spray water to cool the pilot drill bit deep underground;

[0009] The self-cooling mechanism cooperates with the water spray cooling mechanism, and the self-cooling mechanism can cool the guide drill bit during the drilling process.

[0010] Preferably, the protective unit includes a movable shell, the inner ring of the movable shell contacts the outer surface of the guide drill bit body, the top of the movable shell is fixedly connected to four dust-proof plates, and the side surfaces of each group of dust-proof plates close to each other contact the outer surface of the guide drill bit body, the inner wall of the guide drill bit body is fixedly connected to a fixed plate, the top of the fixed plate is fixedly connected to four first hydraulic cylinders, the telescopic end of each group of the first hydraulic cylinders is fixedly connected to the bottom surface of the dust-proof plate, the outer surface of the guide drill bit body is provided with four sliding grooves, the outer surface of each group of the dust-proof plates contacts the inner wall of the slide groove, the inner wall of the guide drill bit body is fixedly connected with four second hydraulic cylinders, the telescopic end of each group of the second hydraulic cylinders is fixedly connected to two movable plates, the outer surface of the guide drill bit body is fixedly connected to four fixed columns, and each group of the fixed columns has two grooves at one end away from each other, and the interior of each group of the grooves is slidably connected to two sliding rods.

[0011] Preferably, the outer surface of each group of the first hydraulic cylinders is fixedly connected to two dustproof shells, the bottom surface of each group of the dustproof shells is fixedly connected to the top of the fixed plate, the bottom surface of each group of the dustproof plates is fixedly connected to two telescopic protective sleeves, the inner wall of each group of the telescopic protective sleeves is in contact with the outer surface of the telescopic end of the first hydraulic cylinder, and the bottom end of each group of the telescopic protective sleeves is fixedly connected to the upper surface of the dustproof shells.

[0012] Preferably, the outer surface of each group of the second hydraulic cylinders is fixedly connected to two protection seats, and the side surfaces of each group of the protection seats that are close to each other are fixedly connected to the inner wall of the guide drill body.

[0013] Preferably, the outer surface of the telescopic end of each group of the second hydraulic cylinders is fixedly connected to two reinforcement plates, and the side surfaces of each group of reinforcement plates that are away from each other are fixedly connected to the side surfaces of the two groups of movable plates that are close to each other.

[0014] Preferably, the inner wall of each group of the reinforcement plates is threadedly connected with four reinforcement bolts, and the outer surface of each group of the reinforcement bolts is threadedly connected to the inner wall of the movable plate.

[0015] Preferably, the outer surface of each group of the fixing columns is fixedly connected to two fixing rings, and one end of each group of the fixing rings close to each other is fixedly connected to the outer surface of the guide drill body.

[0016] Preferably, the outer surface of each group of sliding rods is fixedly connected to two reinforcement rings, and the outer surface of each group of reinforcement rings is fixedly connected to the inner wall of the movable plate.

[0017] Preferably, the water spray unit includes a water storage pipe, the top end of the water storage pipe is fixedly connected to a first water pump, the outer surface of the water storage pipe is fixedly connected to the inner wall of the guide drill bit body, the outer surface of the water storage pipe is fixedly connected to a plurality of identical water delivery pipes, each group of the water delivery pipes is fixedly connected to two telescopic hoses at one end away from the water storage pipe, each group of the telescopic hoses is fixedly connected to an L-shaped water pipe at one end away from the water delivery pipe, the bottom end of each group of the L-shaped water pipes is fixedly connected to a micro water pump, the output end of each group of the micro water pumps is fixedly connected to a water nozzle, the outer surface of each group of the micro water pumps is fixedly connected to two fixing frames, the outer surface of each group of the fixing frames is fixedly connected to the inner wall of the movable plate, the outer surface of the first water pump is fixedly connected to a support frame, the bottom surface of the support frame is fixedly connected to the top of the water storage pipe, the outer surface of each group of the water nozzles is fixedly connected to the inner wall of the movable plate, and the outer surface of each group of the L-shaped water pipes is fixedly connected to the inner wall of the movable plate.

[0018] Preferably, the self-cooling mechanism includes a second water pump, the output end of the second water pump is fixedly connected to a coolant pipe, the bottom end of the coolant pipe is fixedly connected to a first annular water pipe, the outer surface of the first annular water pipe is in contact with the inner wall of the guide drill bit body, the end of the first annular water pipe away from the coolant pipe is fixedly connected to a U-shaped pipe, the end of the U-shaped pipe away from the first annular water pipe is fixedly connected to a second annular water pipe, the outer surface of the second annular water pipe is in contact with the inner wall of the guide drill bit body, the outer surface of the second annular water pipe is fixedly connected to a plurality of identical connecting pipes, and the outer surface of each connecting pipe is fixedly connected to Two branch pipes, the inner wall of the guide drill bit body is fixedly connected with a heat-conducting circular plate, the top of the heat-conducting circular plate is in contact with the outer surface of the first annular water pipe, the top of the heat-conducting circular plate is fixedly connected with two limit blocks, the inner wall of each limit block is in contact with the outer surface of the first annular water pipe, the inner wall of each limit block is threadedly connected with two limit bolts, the outer surface of each group of limit bolts is threadedly connected to the inner wall of the heat-conducting circular plate, the outer surface of the second water pump is fixedly connected to the limit frame, the bottom surface of the limit frame is fixedly connected to the top of the water storage pipe, and the outer surface of the coolant pipe is fixedly connected to the inner wall of the water storage pipe.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention provides a protection unit to protect the water spray cooling device and ensure that the drill bit will not be damaged during the drilling process, thereby preventing the cooling device from being damaged deep underground and being unable to effectively cool the drill bit.

[0021] 2. The present invention provides a water spray unit, which can be used to spray water and cool the guide drill bit deep underground. The water spray unit cooperates with the protection unit, and the water spray unit can more conveniently cool the guide drill bit.

[0022] 3. The present invention provides a self-cooling mechanism, which can dissipate heat and cool the guide drill bit during the drilling process. By coordinating the protection unit, the water spray unit and the self-cooling mechanism, it can effectively avoid the need to lift the drill bit to the ground and spray water to cool it down when the temperature of the drill bit is too high. Only after cooling can the drilling work be continued. If the drill bit is not cooled, the service life of the drill hole will be reduced, thereby seriously affecting the drilling efficiency of the drill bit. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic structural diagram of the present invention as a whole;

[0024] Figure 2 Schematic diagram of the structure of the dustproof plate of the present invention;

[0025] Figure 3 This is a schematic structural diagram of the telescopic protective cover of the present invention;

[0026] Figure 4 It is a structural schematic diagram of the chute of the present invention;

[0027] Figure 5 It is a structural schematic diagram of the movable plate of the present invention;

[0028] Figure 6 It is a structural schematic diagram of the fixed column of the present invention;

[0029] Figure 7 It is a structural schematic diagram of the sliding rod of the present invention;

[0030] Figure 8 This is a schematic structural diagram of an L-shaped water pipe according to the present invention;

[0031] Figure 9 This is a schematic structural diagram of the telescopic hose of the present invention;

[0032] Figure 10 This is a schematic structural diagram of the first annular water pipe of the present invention;

[0033] Figure 11 Schematic diagram of the structure of the heat-conducting circular plate of the present invention;

[0034] Figure 12 It is a structural schematic diagram of the branch pipe of the present invention.

[0035] In the figure: 1. pilot drill body; 2. water spray cooling mechanism; 21. protection unit; 2101. movable housing; 2102. dustproof plate; 2103. first hydraulic cylinder; 2104. dustproof shell; 2105. telescopic protection sleeve; 2106. fixed plate; 2107. movable plate; 2108. slideway; 2109. fixed column; 2110. fixed ring; 2111. groove; 2112. protection seat; 2113. second hydraulic cylinder; 2114. sliding rod; 2115. reinforcement ring; 2116. limit column; 2117. reinforcement plate; 2118. reinforcement bolt; 22 , water spray unit; 2201, water storage pipe; 2202, first water pump; 2203, support frame; 2204, L-shaped water pipe; 2205, micro water pump; 2206, water nozzle; 2207, fixing frame; 2208, telescopic hose; 2209, water delivery pipe; 3, self-cooling mechanism; 301, second water pump; 302, coolant pipe; 303, first annular water pipe; 304, heat-conducting circular plate; 305, limit block; 306, limit bolt; 307, U-shaped pipe; 308, second annular water pipe; 309, connecting pipe; 310, branch pipe; 311, limit frame. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] Example 1: Please refer to Figure 1-Figure 7 The present invention provides a technical solution: a high-precision pilot drill capable of adapting to ultra-high temperatures, comprising a pilot drill body 1, a water spray cooling mechanism 2 provided inside the pilot drill body 1, and a self-cooling mechanism 3 provided inside the pilot drill body 1;

[0038] The water spray cooling mechanism 2 includes a protection unit 21. The protection unit 21 is arranged inside the pilot drill body 1. The protection unit 21 can protect the water spray device.

[0039] As a further limitation of the water spray cooling mechanism 2 of the present invention, the protective unit 21 includes a movable shell 2101, the inner ring of the movable shell 2101 contacts the outer surface of the guide drill bit body 1, and the top of the movable shell 2101 is fixedly connected with four dustproof plates 2102, and the side of each group of dustproof plates 2102 close to each other contacts the outer surface of the guide drill bit body 1, and the inner wall of the guide drill bit body 1 is fixedly connected with a fixed disk 2106, and the top of the fixed disk 2106 is fixedly connected with four first hydraulic cylinders 2103, and the telescopic end of each group of first hydraulic cylinders 2103 is fixedly connected to the bottom surface of the dustproof plate 2102, and the outer surface of the guide drill bit body 1 is provided with four slide grooves 2108, and the outer surface of each group of dustproof plates 2102 contacts the inner wall of the slide groove 2108, and the inner wall of the guide drill bit body 1 is fixedly connected with four second hydraulic cylinders 2113, and each group of second hydraulic cylinders 21 The telescopic ends of 13 are fixedly connected to two movable plates 2107, and the outer surface of the guide drill body 1 is fixedly connected to four fixed columns 2109. Two grooves 2111 are provided at the ends of each group of fixed columns 2109 away from each other. Two sliding rods 2114 are slidably connected inside each group of grooves 2111. By providing a protective unit 21, the protective unit 21 can be used to protect the water spray cooling equipment and ensure that the drill bit will not be damaged during the drilling process, thereby preventing the cooling equipment from being damaged deep underground and unable to effectively cool the drill bit. In addition, the guide drill bit is made of materials with excellent high-temperature performance, such as nickel-based alloys, which can still maintain high strength and hardness at high temperatures. At the same time, it has good oxidation resistance and corrosion resistance, can withstand stress and chemical reactions in ultra-high temperature environments, and ensure the structural stability and service life of the drill bit.

[0040] See also Figure 2 and Figure 3 The outer surface of each group of first hydraulic cylinders 2103 is fixedly connected to two dustproof shells 2104, the bottom surface of each group of dustproof shells 2104 is fixedly connected to the top of the fixed plate 2106, and the bottom surface of each group of dustproof plates 2102 is fixedly connected to two telescopic protective sleeves 2105. The inner wall of each group of telescopic protective sleeves 2105 contacts the outer surface of the telescopic end of the first hydraulic cylinder 2103, and the bottom end of each group of telescopic protective sleeves 2105 is fixedly connected to the upper surface of the dustproof shell 2104. The dustproof shells 2104 and the telescopic protective sleeves 2105 can protect the first hydraulic cylinder 2103 and prevent it from being disturbed by external dust during use;

[0041] See also Figure 6The outer surface of each group of second hydraulic cylinders 2113 is fixedly connected to two protective seats 2112, and the side surfaces of each group of protective seats 2112 close to each other are fixedly connected to the inner wall of the pilot drill body 1. The protective seats 2112 can protect the second hydraulic cylinders 2113, play a strong protective role, and prevent them from being damaged;

[0042] See also Figure 7 The outer surface of the telescopic end of each set of second hydraulic cylinders 2113 is fixedly connected to two reinforcing plates 2117. The side of each set of reinforcing plates 2117 that is away from each other is fixedly connected to the side of the two sets of movable plates 2107 that are close to each other. The reinforcing plates 2117 can fix the second hydraulic cylinders 2113 and the movable plates 2107 to prevent them from moving during use.

[0043] See also Figure 7 The inner wall of each set of reinforcement plates 2117 is threadedly connected with four reinforcement bolts 2118, and the outer surface of each set of reinforcement bolts 2118 is threadedly connected to the inner wall of the movable plate 2107. The reinforcement bolts 2118 can reinforce the reinforcement plates 2117 and the movable plate 2107 to avoid the problem of their position shifting and becoming unstable during use;

[0044] See also Figure 6 The outer surface of each set of fixing columns 2109 is fixedly connected to two fixing rings 2110, and the ends of each set of fixing rings 2110 close to each other are fixedly connected to the outer surface of the pilot drill body 1. The fixing rings 2110 can fix the fixing columns 2109 and the pilot drill body 1 to prevent them from shaking during use;

[0045] See also Figure 7 The outer surface of each set of sliding rods 2114 is fixedly connected to two reinforcement rings 2115, and the outer surface of each set of reinforcement rings 2115 is fixedly connected to the inner wall of the movable plate 2107. The reinforcement rings 2115 can reinforce the sliding rods 2114 and the movable plate 2107, and have a strong fixing effect to prevent their positions from shifting during movement.

[0046] The specific implementation of this embodiment is as follows: when the guide drill bit body 1 needs to be cooled, it is necessary to stop the drilling work first, and then the telescopic end of the first hydraulic cylinder 2103 is extended to drive the dustproof plate 2102 to move upward in the slide groove 2108, thereby driving the movable shell 2101 to move upward, and then the movable shell 2101 stops restricting the position of the movable plate 2107, and then the telescopic end of the second hydraulic cylinder 2113 is extended to drive the movable plate 2107 to move. When the movable plate 2107 moves outward, the sliding rod 2114 will slide in the groove 2111 inside the fixed column 2109. When it moves to an appropriate distance, the limiting column 2116 will The position of the movable plate 2107 can be limited, and water spraying can be performed on the guide drill bit body 1 to cool it down. When the cooling work of the guide drill bit body 1 is completed and it is necessary to continue drilling, it is only necessary to retract the telescopic end of the second hydraulic cylinder 2113 to drive the movable plate 2107 to move and restore it to its original position. Then, by retracting the telescopic end of the first hydraulic cylinder 2103, the dustproof plate 2102 is driven to move downward, and then the movable shell 2101 is driven to move downward, so that the position of the movable plate 2107 can be limited. When a large amount of dust is generated by the guide drill bit body 1 during drilling, the dustproof plate 2102 and the movable shell 2101 can be used to effectively block it, thereby achieving the purpose of safety protection and preventing it from entering the interior of the device and causing interference and damage to internal components.

[0047] Example 2: Please refer to Figure 2 、 Figure 4 、 Figure 8 and Figure 9 The present invention provides a technical solution: a high-precision guide drill bit that can adapt to ultra-high temperatures. The present invention makes corresponding improvements to the technical problems mentioned in the background technology. The water spray cooling mechanism 2 also includes a water spray unit 22. The water spray unit 22 is arranged inside the guide drill bit body 1. The water spray unit 22 cooperates with the protective unit 21. The water spray unit 22 can spray water to cool the guide drill bit deep underground.

[0048] As a further limitation of the present invention, the water spray unit 22 includes a water storage pipe 2201, the top of the water storage pipe 2201 is fixedly connected to a first water pump 2202, the outer surface of the water storage pipe 2201 is fixedly connected to the inner wall of the guide drill bit body 1, the outer surface of the water storage pipe 2201 is fixedly connected to a number of identical water delivery pipes 2209, each group of water delivery pipes 2209 is fixedly connected to two telescopic hoses 2208 at one end away from the water storage pipe 2201, each group of telescopic hoses 2208 is fixedly connected to an L-shaped water pipe 2204 at one end away from the water delivery pipe 2209, each group of L-shaped water pipes 2204 is fixedly connected to a micro water pump 2205 at the bottom end, each group of micro water pumps 2205 is fixedly connected to a water nozzle 2206 at the output end, and each group of micro The outer surface of the water pump 2205 is fixedly connected to two fixing frames 2207, the outer surface of each set of fixing frames 2207 is fixedly connected to the inner wall of the movable plate 2107, the outer surface of the first water pump 2202 is fixedly connected to the support frame 2203, the bottom surface of the support frame 2203 is fixedly connected to the top of the water storage pipe 2201, the outer surface of each set of water nozzles 2206 is fixedly connected to the inner wall of the movable plate 2107, the outer surface of each set of L-shaped water pipes 2204 is fixedly connected to the inner wall of the movable plate 2107, and by setting up a water spray unit 22, the water spray unit 22 can be used to spray water and cool the guide drill bit deep underground. The water spray unit 22 cooperates with the protective unit 21, and the water spray unit 22 can more conveniently cool the guide drill bit.

[0049] The specific implementation of this embodiment is as follows: when the guide drill bit body 1 is to be cooled by spraying water, it is necessary to first make the movable shell 2101 move upward, stop restricting the position of the movable plate 2107, and then move the position of the movable plate 2107, so that when the position of the movable plate 2107 moves, it can drive the telescopic hose 2208 to extend, and then the output end of the first water pump 2202 is used to transport water resources to the water storage pipe 2201, and then the water resources in the water storage pipe 2201 are transported to the water nozzle 2206 through the output end of the micro water pump 2205, and then the water resources are sprayed onto the surface of the guide drill bit body 1 through the water nozzle 2206 to achieve the purpose of cooling and heat dissipation, thereby facilitating the water spraying and cooling work of the guide drill bit body 1 deep underground.

[0050] Example 3: Please refer to Figure 10-12 The present invention provides a technical solution: a high-precision guide drill bit that can adapt to ultra-high temperatures. The present invention makes corresponding improvements to the technical problems mentioned in the background technology. The self-cooling mechanism 3 and the water spray cooling mechanism 2 cooperate with each other. The self-cooling mechanism 3 can cool the guide drill bit during the drilling process.

[0051] As a further limitation of the present invention, the self-cooling mechanism 3 includes a second water pump 301, the output end of the second water pump 301 is fixedly connected to a cooling liquid pipe 302, the bottom end of the cooling liquid pipe 302 is fixedly connected to a first annular water pipe 303, the outer surface of the first annular water pipe 303 is in contact with the inner wall of the guide drill bit body 1, the end of the first annular water pipe 303 away from the cooling liquid pipe 302 is fixedly connected to a U-shaped pipe 307, the end of the U-shaped pipe 307 away from the first annular water pipe 303 is fixedly connected to a second annular water pipe 308, the outer surface of the second annular water pipe 308 is in contact with the inner wall of the guide drill bit body 1, the outer surface of the second annular water pipe 308 is fixedly connected to a plurality of identical connecting pipes 309, the outer surface of each connecting pipe 309 is fixedly connected to two branch pipes 310, the inner wall of the guide drill bit body 1 is fixedly connected to a heat-conducting circular plate 304, the top of the heat-conducting circular plate 304 is in contact with the outer surface of the first annular water pipe 303, and the top of the heat-conducting circular plate 304 is fixedly connected to two limit blocks. 305, the inner wall of each limit block 305 contacts the outer surface of the first annular water pipe 303, and the inner wall of each limit block 305 is threadedly connected to two limit bolts 306, and the outer surface of each group of limit bolts 306 is threadedly connected to the inner wall of the heat-conducting circular plate 304, the outer surface of the second water pump 301 is fixedly connected to the limit frame 311, the bottom surface of the limit frame 311 is fixedly connected to the top of the water storage pipe 2201, and the outer surface of the coolant pipe 302 is fixedly connected to the inner wall of the water storage pipe 2201. By setting up a self-cooling mechanism 3, the self-cooling mechanism 3 can be used to dissipate heat and cool down the guide drill bit during the drilling process. By providing the mutual cooperation between the protection unit 21, the water spray unit 22 and the self-cooling mechanism 3, it can be effectively avoided that when the temperature of the drill bit is too high, it needs to be lifted to the ground and sprayed with water for cooling. Only after cooling can the drilling work be continued. If it is not cooled, the service life of the drill hole will be reduced, thereby seriously affecting the drilling efficiency of the drill bit.

[0052] The specific implementation of this embodiment is as follows: when the guide drill bit body 1 is drilling, the temperature of the surface of the guide drill bit will be transferred to the heat-conducting circular plate 304, and the coolant can be transported to the coolant pipe 302 through the output end of the second water pump 301, and then the coolant will flow to the first annular water pipe 303 and the second annular water pipe 308. Since the first annular water pipe 303 is in contact with the heat-conducting circular plate 304, the coolant inside the first annular water pipe 303 will absorb the temperature on the heat-conducting circular plate 304, and the coolant in the second annular water pipe 308 will flow to each branch pipe 310. Since the multiple branch pipes 310 are evenly distributed inside the guide drill bit body 1, the internal temperature of the guide drill bit body 1 can be efficiently absorbed, which can effectively avoid the need to lift the drill bit to the ground and sprinkle water for cooling when the drill bit temperature is too high. Only after cooling can the drilling work continue. If it is not cooled, the service life of the drill hole will be reduced, thereby seriously affecting the drilling efficiency of the drill bit.

[0053] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0054] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A high-precision pilot drill capable of adapting to ultra-high temperatures, comprising a pilot drill body (1), characterized in that: A water spray cooling mechanism (2) is provided inside the pilot drill bit body (1), and a self-cooling mechanism (3) is provided inside the pilot drill bit body (1); The water spray cooling mechanism (2) comprises a protection unit (21), the protection unit (21) being arranged inside the pilot drill bit body (1), and the protection unit (21) being capable of protecting the water spray device; The water spray cooling mechanism (2) comprises a water spray unit (22), the water spray unit (22) being arranged inside the pilot drill bit body (1), the water spray unit (22) cooperating with the protection unit (21), and the water spray unit (22) being capable of spraying water to cool the pilot drill bit deep underground; The self-cooling mechanism (3) cooperates with the water spray cooling mechanism (2), and the self-cooling mechanism (3) can cool the guide drill bit during the drilling process; The protection unit (21) includes a movable shell (2101), the inner ring of the movable shell (2101) contacts the outer surface of the guide drill body (1), the top of the movable shell (2101) is fixedly connected to four dustproof plates (2102), and the side surfaces of each group of dustproof plates (2102) close to each other are in contact with the outer surface of the guide drill body (1), the inner wall of the guide drill body (1) is fixedly connected to a fixed disk (2106), the top of the fixed disk (2106) is fixedly connected to four first hydraulic cylinders (2103), the telescopic end of each group of the first hydraulic cylinders (2103) is fixedly connected to the bottom surface of the dustproof plate (2102), and the The outer surface of the guide drill bit body (1) is provided with four slide grooves (2108), the outer surface of each group of dustproof plates (2102) contacts the inner wall of the slide groove (2108), the inner wall of the guide drill bit body (1) is fixedly connected with four second hydraulic cylinders (2113), the telescopic end of each group of the second hydraulic cylinders (2113) is fixedly connected with two movable plates (2107), the outer surface of the guide drill bit body (1) is fixedly connected with four fixed columns (2109), the ends of each group of the fixed columns (2109) away from each other are provided with two grooves (2111), and the interior of each group of the grooves (2111) is slidably connected with two sliding rods (2114); The water spray unit (22) comprises a water storage pipe (2201), the top end of the water storage pipe (2201) is fixedly connected to a first water pump (2202), the outer surface of the water storage pipe (2201) is fixedly connected to the inner wall of the guide drill bit body (1), the outer surface of the water storage pipe (2201) is fixedly connected to a plurality of identical water delivery pipes (2209), one end of each group of water delivery pipes (2209) away from the water storage pipe (2201) is fixedly connected to two telescopic hoses (2208), one end of each group of telescopic hoses (2208) away from the water delivery pipe (2209) is fixedly connected to an L-shaped water pipe (2204), and the bottom end of each group of L-shaped water pipes (2204) is fixedly connected to a micro water pump ( 2205), the output end of each group of the micro water pumps (2205) is fixedly connected to a water nozzle (2206), the outer surface of each group of the micro water pumps (2205) is fixedly connected to two fixing frames (2207), the outer surface of each group of the fixing frames (2207) is fixedly connected to the inner wall of the movable plate (2107), the outer surface of the first water pump (2202) is fixedly connected to a support frame (2203), the bottom surface of the support frame (2203) is fixedly connected to the top of the water storage pipe (2201), the outer surface of each group of the water nozzles (2206) is fixedly connected to the inner wall of the movable plate (2107), and the outer surface of each group of the L-shaped water pipes (2204) is fixedly connected to the inner wall of the movable plate (2107).

2. The high-precision guide drill bit capable of adapting to ultra-high temperatures according to claim 1, characterized in that: The outer surface of each group of the first hydraulic cylinders (2103) is fixedly connected to two dustproof shells (2104), the bottom surface of each group of the dustproof shells (2104) is fixedly connected to the top of the fixed plate (2106), the bottom surface of each group of the dustproof plates (2102) is fixedly connected to two telescopic protective sleeves (2105), the inner wall of each group of the telescopic protective sleeves (2105) is in contact with the outer surface of the telescopic end of the first hydraulic cylinder (2103), and the bottom end of each group of the telescopic protective sleeves (2105) is fixedly connected to the upper surface of the dustproof shell (2104).

3. The high-precision guide drill bit capable of adapting to ultra-high temperatures according to claim 2, characterized in that: The outer surface of each group of the second hydraulic cylinders (2113) is fixedly connected to two protection seats (2112), and the side surfaces of each group of the protection seats (2112) that are close to each other are fixedly connected to the inner wall of the guide drill body (1).

4. The high-precision guide drill bit capable of adapting to ultra-high temperatures according to claim 1, characterized in that: The outer surface of the telescopic end of each group of the second hydraulic cylinders (2113) is fixedly connected to two reinforcing plates (2117), and the side of each group of the reinforcing plates (2117) that is away from each other is fixedly connected to the side of the two groups of movable plates (2107) that are close to each other.

5. The high-precision guide drill bit capable of adapting to ultra-high temperatures according to claim 4, characterized in that: The inner wall of each group of reinforcing plates (2117) is threadedly connected with four reinforcing bolts (2118), and the outer surface of each group of reinforcing bolts (2118) is threadedly connected to the inner wall of the movable plate (2107).

6. The high-precision guide drill bit capable of adapting to ultra-high temperatures according to claim 1, characterized in that: The outer surface of each group of the fixing columns (2109) is fixedly connected to two fixing rings (2110), and the ends of each group of the fixing rings (2110) that are close to each other are fixedly connected to the outer surface of the guide drill body (1).

7. The high-precision guide drill bit capable of adapting to ultra-high temperatures according to claim 1, characterized in that: The outer surface of each set of sliding rods (2114) is fixedly connected to two reinforcement rings (2115), and the outer surface of each set of reinforcement rings (2115) is fixedly connected to the inner wall of the movable plate (2107).

8. The high-precision guide drill bit capable of adapting to ultra-high temperatures according to claim 7, characterized in that: The self-cooling mechanism (3) comprises a second water pump (301), the output end of the second water pump (301) is fixedly connected to a cooling liquid pipe (302), the bottom end of the cooling liquid pipe (302) is fixedly connected to a first annular water pipe (303), the outer surface of the first annular water pipe (303) is in contact with the inner wall of the guide drill bit body (1), the end of the first annular water pipe (303) away from the cooling liquid pipe (302) is fixedly connected to a U-shaped pipe (307), the end of the U-shaped pipe (307) away from the first annular water pipe (303) is fixedly connected to a second annular water pipe (308), the outer surface of the second annular water pipe (308) is in contact with the inner wall of the guide drill bit body (1), the outer surface of the second annular water pipe (308) is fixedly connected to a plurality of identical connecting pipes (309), and the outer surface of each connecting pipe (309) is fixedly connected to two branch pipes. (310), the inner wall of the guide drill bit body (1) is fixedly connected to a heat-conducting circular plate (304), the top of the heat-conducting circular plate (304) contacts the outer surface of the first annular water pipe (303), the top of the heat-conducting circular plate (304) is fixedly connected to two limit blocks (305), the inner wall of each limit block (305) contacts the outer surface of the first annular water pipe (303), the inner wall of each limit block (305) is threadedly connected to two limit bolts (306), the outer surface of each group of limit bolts (306) is threadedly connected to the inner wall of the heat-conducting circular plate (304), the outer surface of the second water pump (301) is fixedly connected to a limit frame (311), the bottom surface of the limit frame (311) is fixedly connected to the top of the water storage pipe (2201), and the outer surface of the coolant pipe (302) is fixedly connected to the inner wall of the water storage pipe (2201).

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