Drill bit convenient to cool
By setting flow channels and water injection holes in the drill bit, the problem of drill bit overheating and damage is solved by using water to cool the drill bit, thus achieving both cooling and improved efficiency.
Patent Information
- Application Number
- CN202423237153.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-12-26
AI Technical Summary
During the construction of long-distance oil and gas pipelines, the temperature of the drill bit rises sharply when it encounters hard geological conditions, leading to overheating damage, requiring the drilling operation to be stopped, reducing work efficiency and increasing costs.
A drill bit designed for easy cooling is achieved by setting flow channels and water injection holes on the drill bit body, extension rod, and drive rod to utilize water for cooling, and by using an outer rotating ring to prevent water pipe entanglement and ensure a continuous water supply.
It effectively reduces drill bit temperature, prevents damage, extends service life, improves drilling efficiency, and ensures a continuous water supply.
Smart Images
Figure CN223523669U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to long oil and gas pipeline surveying technical field, especially a drill bit convenient to cooling. BACKGROUND
[0002] In recent years, with the rapid development of China's economy, the demand for traditional energy such as oil and natural gas continues to grow. In order to meet this huge demand, China has increased the construction of long-distance pipelines, and the scale of oil and gas pipeline network has been expanding. It is expected that the pace of oil and gas pipeline construction will further accelerate in the coming years. In the construction process of long-distance oil and gas pipelines, the route selection of the pipeline is a crucial link.
[0003] In order to ensure the safe and efficient construction of long-distance oil and gas pipelines, the survey of the pipeline is extremely strict. In the long-distance oil and gas pipeline construction project, survey services are indispensable. However, when encountering a section with hard geological conditions, the drill bit of the drilling machine will bear a large load during drilling, causing the temperature of the drill bit to rise sharply. In order to avoid overheating and damage to the drill bit, drilling operations must be stopped, and the drill bit must be physically cooled, which will undoubtedly greatly reduce work efficiency and increase construction cost and time cost.
[0004] Therefore, the present application provides a drill bit convenient to cool to meet the needs. UTILITY MODEL CONTENTS
[0005] The technical problem to be solved by the utility model is to provide a drill bit convenient to cool, which can prevent overheating and damage to the drill bit, and must stop drilling operations to physically cool the drill bit, thereby reducing work efficiency.
[0006] To solve the above technical problems, the utility model provides the following technical scheme:
[0007] A drill bit convenient to cool, comprising:
[0008] A drill bit body, an extension rod and a driving rod are connected in sequence by threads;
[0009] A flow channel is provided on the drill bit body, the extension rod and the driving rod, and the flow channel is vertically downward, thereby realizing the circulation of water source;
[0010] A water injection hole is provided at the bottom end of the drill bit body and is in communication with the flow channel on the drill bit body, thereby realizing cooling by water source;
[0011] An outer rotating ring is rotatably connected to the driving rod, and a water injection pipe is fixed to the outer rotating ring and is in communication with the flow channel on the driving rod, thereby realizing the delivery of water source.
[0012] Optionally, a reinforcing rod is fixed in the flow channel of the drill bit body, the extension rod and the driving rod, so as to maximize the structural strength of the whole drilling assembly.
[0013] Optionally, an annular slot is formed in the driving rod, and an inner rotating ring is fixed to the inner side of the outer rotating ring and arranged in the annular slot, so that the outer rotating ring does not rotate with the driving rod, and the water pipe and the connected water pipe cannot be wound or knotted due to rotation.
[0014] Optionally, a driving block is fixed to the top of the driving rod, and the driving block is connected with the drilling machine, so that the rotation force and the downward pressure generated after the drilling machine is started are transmitted to the driving rod, the extension rod and the drill bit body through the driving block, thereby realizing the drilling work.
[0015] Optionally, a through hole for high-pressure water injection is formed in the center of the top of the driving rod, so that the extracted survey sample retains the original depth and hierarchical information, and provides an accurate basis for subsequent geological analysis.
[0016] Optionally, the inner wall of the through hole is in a threaded structure, and the thread fixation can increase the sealing property and the fastening property.
[0017] Optionally, an iron sheet with an opening is fixed to the inner top of the driving rod, the opening is communicated with the through hole, and a piston is detachably connected to the iron sheet, so that the piston can be placed in the driving rod and pushed out to the survey sample.
[0018] Optionally, a magnetic block is fixed to the top of the piston and magnetically connected with the iron sheet, so that the piston cannot fall off in the driving rod.
[0019] Optionally, the bottom end of the drill bit body is a diamond matrix, so that the hardness and wear resistance of the drill bit body are improved, the rock breaking effect is enhanced, and the stability and durability are improved.
[0020] Compared with the prior art, the utility model at least has the following beneficial effects:
[0021] The water source enters the flow channel through the water injection pipe and is finally discharged through the water injection hole at the bottom end of the drill bit body, in the drilling process, the driving rod is driven by the drilling machine, the drill bit body and the extension rod are rotated and drilled downward, at the same time, the continuously discharged water source cools the drilling part of the drill bit body, effectively reduces the heat generated by continuous drilling, prevents the drill bit from being damaged due to high temperature, prolongs the service life of the drill bit, and improves the drilling efficiency, when the driving rod rotates, the outer rotating ring remains relatively static, so that the water pipe is prevented from being knotted, and the continuous supply of the water source is ensured. BRIEF DESCRIPTION OF DRAWINGS
[0022] The drawings incorporated in and forming a part of the specification, illustrate embodiments of the present application and, together with the description, further serve to explain the principles of the application and to enable one skilled in the pertinent art to make and use the application.
[0023] Figure 1 is a schematic view of the three-dimensional structure of the drill bit body;
[0024] Figure 2 is a schematic view of the three-dimensional structure of the drill bit body;
[0025] Figure 3 is a schematic view of the three-dimensional structure of the drill bit body;
[0026] Figure 4 is a schematic view of the three-dimensional structure of the drill bit body;
[0027] Figure 5 is a schematic view of the three-dimensional structure of the drill bit body;
[0028] Figure 6 is a schematic view of the three-dimensional structure of the drill bit body;
[0029] Figure 7 is a schematic view of the three-dimensional structure of the drill bit body.
[0030] [Reference signs]
[0031] 1, drill bit body; 11, water injection hole;
[0032] 2, extension rod;
[0033] 3, drive rod; 31, outer rotating ring; 311, water injection pipe; 312, inner rotating ring; 32, drive block; 33, annular notch; 34, through hole;
[0034] 4, flow channel; 41, reinforcing rod;
[0035] 5, piston; 51, magnetic block.
[0036] As shown in the drawings, in order to clearly realize the structure of the embodiments of the present application, specific structures and devices are marked in the drawings, but this is only for the need of illustration, and is not intended to limit the present application in the specific structure, device and environment, and those skilled in the art can adjust or modify these devices and environment according to specific needs. DETAILED DESCRIPTION
[0037] The drill bit provided by the utility model is described in detail below in combination with the drawings and specific embodiments. Meanwhile, it is pointed out here that in order to make the embodiments more detailed, the following embodiments are the best, preferred embodiments, and some other alternative ways can also be adopted by the person skilled in the art to implement them; and the drawings are only used to describe the embodiments more specifically, and are not intended to specifically limit the utility model.
[0038] It should be noted that the terms "one embodiment", "an embodiment", "exemplary embodiment", "some embodiments", etc. in the description indicate that the described embodiments can include a specific feature, structure or property, but not necessarily every embodiment includes the specific feature, structure or property. In addition, when a specific feature, structure or property is described in combination with an embodiment, it should be within the knowledge of the person skilled in the related art to realize such a feature, structure or property in combination with other embodiments (whether or not explicitly described).
[0039] Generally, the terms can be understood at least partly from the use in the context. For example, at least partly depending on the context, the term "one or more" used herein can be used to describe any feature, structure or property in the singular sense, or can be used to describe a combination of features, structures or properties in the plural sense. In addition, the term "based on" can be understood as not necessarily conveying a set of exclusive factors, but can instead, at least partly depending on the context, allow the existence of other factors not necessarily explicitly described.
[0040] It can be understood that the meanings of "on", "above" and "over" in the utility model should be interpreted in the broadest way, so that "on" not only means "directly on" something but also includes the meaning of "on" something with intervening characteristics or layers therebetween, and "above" or "over" not only means "above" or "over" something but also can include the meaning of "above" or "over" something without intervening characteristics or layers therebetween.
[0041] In addition, spatially relative terms such as "under", "below", "lower", "over", "upper" and the like can be used herein for ease of description to describe one element's or feature's relationship to another element(s) or feature(s) as illustrated in the drawings. The spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the drawings. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein can be interpreted accordingly.
[0042] As Figure 1 , Figure 2 and Figure 3As shown, the utility model discloses a drill bit convenient to cool down, comprising: drill bit body 1, the top of drill bit body 1 is selected according to the survey depth and is provided with extension rod 2, extension rod 2 is one or one or more arbitrary number, the top of extension rod 2 is provided with drive rod 3, drive rod 3 is installed on the drilling machine and is used for driving extension rod 2 and drill bit body 1 to drill down, drill bit body 1 and extension rod 2 are screw connection, extension rod 2 and drive rod 3 are screw connection, make drill bit body 1, extension rod 2 and drive rod 3 tightly connected one drilling whole through the mode of screw.
[0043] As shown, Figure 1 Drill bit body 1, extension rod 2 and drive rod 3 are all provided with flow channel 4, flow channel 4 is perpendicular to downward type structure, and flow channel 4 on drill bit body 1, extension rod 2 and drive rod 3 is interconnected to realize the flow of water source.
[0044] As shown, Figure 2 The bottom end of drill bit body 1 is provided with water injection hole 11, and water injection hole 11 is communicated with flow channel 4 on drill bit body 1, so as to realize the discharge of water source, the drilling part of drill bit body 1 is cooled by water source, to prevent the drill bit load from being too large when continuously drilling, resulting in temperature rise, damage and time increase.
[0045] Drive rod 3 is rotatably connected with outer rotating ring 31 for preventing water injection pipe from winding and knotting, outer rotating ring 31 is fixed with water injection pipe 311 for water pipe connection, and water injection pipe 311 is communicated with flow channel 4 on drive rod 3, through the setting of rotatable connection, when drive rod 3 drives drill bit body 1 and extension rod 2 to rotate, outer rotating ring 31 can be kept from rotating to prevent the water pipe on water injection pipe 311 from knotting, while ensuring the transportation of water source, wherein, the water pipe can be fixed on the fixed position in the form of rope, so as to completely avoid the slight rotation of outer rotating ring 31 caused by the slight friction between outer rotating ring 31 and drive rod 3 when drive rod 3 rotates.
[0046] Specifically, according to the survey depth requirement, select the appropriate number of extension rod 2, through the threaded connection method is assembled in the drill bit body 1, finally, the drive rod 3 is fixed on the extension rod 2 by threaded connection, form a complete drilling whole, water source through the water injection pipe 311 into the flow channel 4 on the drive rod 3, because the flow channel 4 in the drill bit body 1, extension rod 2 and drive rod 3 are all vertical downward type structure and intercommunication, water source can flow smoothly through the drill bit body 1, extension rod 2 and drive rod 3, finally through the water injection hole 11 at the bottom of the drill bit body 1 discharge, in the drilling process, drive rod 3 through the drilling rig drive, drive the drill bit body 1 and extension rod 2 rotation and down drilling, at the same time, the continuous discharge of water source cooling drilling part of the drill bit body 1, effectively reduce the heat generated by continuous drilling, prevent the drill bit due to high temperature and damaged, prolong the service life of the drill bit, and improve the drilling efficiency, drive rod 3 in rotation, the outer rotating ring 31 remains relatively static, so as to prevent the water pipe knot, ensure the continuous supply of water source.
[0047] As shown in Figure 1 , Figure 3 and Figure 5 , the drill bit body 1, extension rod 2 and drive rod 3 on the flow channel 4 are welded with reinforcing rod 41, the strength of the drill bit body 1, extension rod 2 and drive rod 3 is increased by the reinforcing rod 41, so as to prevent the occurrence of indentation and indentation from causing damage or causing the flow channel 4 to be closed. The structural strength of the whole drilling assembly is maximized by the reinforcing rod 41, the reinforcing rod 41 is tightly welded with the inner wall of the flow channel 4, forming a solid whole, thereby effectively resisting various external forces and pressures that may be encountered during drilling. The strength of the reinforcing rod 41 welded in the flow channel 4 is effectively dispersed and borne, thereby avoiding the occurrence of deformation, and at the same time, the reinforcing rod 41 also ensures the smoothness of the flow channel 4.
[0048] As shown in Figure 5 and Figure 6 , the drive rod 3 is provided with an annular notch 33, the inner side of the outer rotating ring 31 is fixed with an inner rotating ring 312, the inner rotating ring 312 is embedded in the annular notch 33. When the drive rod 3 rotates, the outer rotating ring 31 will not rotate with the drive rod 3 because the inner rotating ring 312 is embedded in the annular notch 33. The relative static state between the outer rotating ring 31 and the drive rod 3 is achieved. Even if the drive rod 3 rotates at high speed during drilling, the outer rotating ring 31 can also remain static. The outer rotating ring 31 is fixed with a water injection pipe 311 for connecting the water source and supplying water to the flow channel 4. Since the outer rotating ring 31 does not rotate with the drive rod 3, the water injection pipe 311 and the connected water pipe will not be twisted or knotted due to rotation. Thus, the water source can flow smoothly into the flow channel 4 of the drive rod 3, extension rod 2 and drill bit body 1 through the water injection pipe 311.
[0049] AsFigure 1 and Figure 4 As shown in the figure, the top of the driving rod 3 is fixed with a driving block 32, and the driving block 32 is connected with the drilling machine. When the drilling machine is started, the rotation force and the downward pressure generated by the drilling machine are transmitted to the driving rod 3, the extension rod 2 and the drill bit body 1 through the driving block 32, so that the drilling work is realized.
[0050] As shown in the figure, Figure 4 As shown in the figure, a through hole 34 for high-pressure water injection is arranged at the top center of the driving rod 3. During the drilling operation, the drill bit body 1 and the extension rod 2 will be deeply drilled into the ground, and the survey samples (such as soil, rock, etc.) generated by the drilling will be stored inside the drill bit body 1 and the extension rod 2, closely adhering to the inner wall. After the drilling is completed, the drill bit body 1 or the extension rod 2 usually needs to be knocked to produce a gap between the survey sample and the inner wall so as to be taken out. Multiple knockings can easily cause the survey sample to be broken. The broken survey sample cannot accurately judge the depth information of each section of the sample during subsequent sorting and induction, which greatly reduces the accuracy of the survey result. The high-pressure water enters the driving rod 3, the extension rod 2 and finally reaches the inside of the drill bit body 1 through the through hole 34. The high-pressure water produces a continuous thrust on the survey sample, so that the survey sample is gradually pushed out of the drill bit body 1 and the extension rod 2. Through the continuous thrust of the high-pressure water, the survey sample can be pushed out in an intact state, avoiding the breaking problem caused by the traditional knocking method. The taken-out survey sample retains its original depth and hierarchical information, providing an accurate basis for subsequent geological analysis.
[0051] As shown in the figure, Figure 4 As shown in the figure, the inner wall of the through hole 34 is a threaded structure. By adopting a water pipe connector with threads, the high-pressure water can be injected into the inside through the water pipe, and the sealing and fastening can be increased due to the fixing of the threads, preventing the water pipe connector from being separated from the inside of the through hole 34 due to the excessive pressure of the high-pressure water, so that the water pressure changes and the survey sample cannot be pushed out of the drill bit body 1 and the extension rod 2.
[0052] As shown in the figure, Figure 4 and Figure 7 As shown in the figure, an iron sheet with an opening is fixed at the inner top of the driving rod 3, and the opening is in communication with the through hole 34. The piston 5 is detachably connected to the iron sheet. The high-pressure water is injected into the inside of the driving rod 3 through the opening and the through hole 34, and then the piston 5 is pushed by the high-pressure water to make the survey sample discharge from the drill bit body 1 and the extension rod 2. Through the detachable piston 5, the piston 5 is placed in the driving rod 3 and the survey sample is pushed out.
[0053] As shown in the figure, Figure 7The detachable specific connection mode is that the top of the piston 5 is fixed with a magnetic block 51, and the magnetic block 51 is magnetically connected with an iron sheet, the piston 5 is installed in the inside of the driving rod 3 through the magnetic mode, the piston 5 is prevented from falling in the driving rod 3, and when high-pressure water is injected into the inside of the driving rod 3, the high-pressure water can push the piston 5 out of the driving rod 3.
[0054] As shown in Figure 1 and Figure 2 The bottom end of the drill bit body 1 is a diamond matrix, the hardness and wear resistance of the drill bit body 1 are improved, the rock breaking effect is enhanced, and the stability and durability are improved by adopting the diamond matrix.
[0055] The flow of the specific manufacturing of the drill bit body 1, the extension rod 2 and the driving rod 3 is as follows:
[0056] The drill bit body 1 is provided with a flow channel 4 and a water injection hole 11 by slotting equipment, the flow channel 4 is communicated with the water injection hole 11, and the reinforcing rod 41 is welded in the flow channel 4 of the drill bit body 1 by welding equipment.
[0057] The extension rod 2 is provided with an outer tube and an inner tube by adopting double tubes, the size of the outer tube is the same as that of the drill bit body 1, the size of the outer tube is the same as that of the inner ring of the drill bit body 1, the flow channel 4 is reserved between the outer tube and the inner tube, and the outer tube and the inner tube are connected as a whole by the reinforcing rod 41.
[0058] The driving rod 3 is provided with a flow channel 4 by slotting equipment, the outer part of the driving rod 3 is cut by cutting equipment to reserve the gap of the annular notch 33, the inner rotating ring 312 is arranged in the annular notch 33, the reinforcing rod 41 is welded in the flow channel 4 of the driving rod 3, the piston 5 is arranged at the bottom end of the driving rod 3, the bottom end is upward and the tail end is downward, the piston 5 slides from the inside of the driving rod 3 to the inner top, and the piston 5 is fixed in the piston 5 by the adsorption of the magnetic block 51 and the iron sheet.
[0059] The working principle of the utility model provides:
[0060] During drilling, according to the surveying depth requirement, a proper number of extension rods 2 are selected and assembled on the drill bit body 1 in a threaded connection mode, finally, the driving rod 3 is fixed on the extension rod 2 in a threaded connection mode, and a complete drilling whole is formed;
[0061] The driving rod 3 is driven by a drilling machine, and drives the drill bit body 1 and the extension rod 2 to rotate and drill downward;
[0062] The water source enters the flow channel 4 on the driving rod 3 through the water injection pipe 311, and since the flow channel 4 is vertically downward on the drill bit body 1, the extension rod 2 and the driving rod 3 and is communicated with each other, the water source can smoothly flow through the drill bit body 1, the extension rod 2 and the driving rod 3, and is finally discharged through the water injection hole 11 at the bottom end of the drill bit body 1, so that the drill bit is prevented from being damaged due to excessively high temperature.
[0063] After the drilling is completed, the high-pressure water is injected into the inside of the driving rod 3 through the opening and the through hole 34, and then the piston 5 is pushed by the high-pressure water, so that the survey sample is discharged from the drill bit body 1 and the extension rod 2.
[0064] The utility model covers any alternative, modification, equivalent method and scheme which are made on the essence and range of the utility model. In order to make the public have the thorough understanding to the utility model, the specific details are explained in the following utility model preferred embodiment, and the utility model can also be completely understood without the description of these details to the person skilled in the art. In addition, in order to avoid unnecessary confusion to the essence of the utility model, the well-known method, process, flow, element and circuit are not explained in detail.
[0065] The above only is the preferred implementation mode of the utility model, should point out, for the ordinary skill in the art of the present technology, on the premise of not departing from the principle of the utility model, still can make a number of improvement and embellishment, these improvement and embellishment also should be regarded as the protection range of the utility model.
Claims
1. A drill bit for facilitating cooling, comprising: Include: Drill bit body (1), extension rod (2) and drive rod (3) are connected in turn; Flow channel (4), drill bit body (1), extension rod (2) and drive rod (3) are provided with vertical downward flow channel (4), so as to realize the flow of water source; Water injection hole (11), water injection hole (11) is provided at the bottom end of drill bit body (1) and is communicated with flow channel (4) on drill bit body (1), so as to realize cooling through water source; Outer rotating ring (31), outer rotating ring (31) is rotatably connected on drive rod (3), the outer rotating ring (31) is fixed with water injection pipe (311), and the water injection pipe (311) is communicated with flow channel (4) on drive rod (3), so as to realize the delivery of water source.
2. The drill bit of claim 1, wherein, The flow channel (4) of the drill bit body (1), the extension rod (2) and the drive rod (3) is fixed with the reinforcing rod (41).
3. The drill bit of claim 1, wherein, The drive rod (3) is provided with an annular notch (33), the inner side of the outer rotating ring (31) is fixed with an inner rotating ring (312), and the inner rotating ring (312) is arranged in the inner part of the annular notch (33).
4. The drill bit of claim 1, wherein, The top of the drive rod (3) is fixed with a drive block (32), and the drive block (32) is connected with the drilling machine.
5. The drill bit of claim 4, wherein, The top center of the drive rod (3) is provided with a through hole (34) for high pressure water injection.
6. The drill bit of claim 5, wherein, The inner wall of the through hole (34) is a threaded structure.
7. The drill bit of claim 1, wherein, The inner top of the drive rod (3) is fixed with an iron sheet with an opening, and the opening is communicated with the through hole (34), and the iron sheet is detachably connected with a piston (5).
8. The drill bit of claim 7, wherein, The top of the piston (5) is fixed with a magnetic block (51), and the magnetic block (51) is magnetically connected with the iron sheet.
9. The drill bit of claim 1, wherein, The bottom end of the drill bit body (1) is diamond matrix.