Drill cylinder with heat dissipation structure
Patent Information
- Application Number
- CN202522069465.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-26
- Publication Date
- 2026-09-04
- Estimated Expiration
- 2035-09-26
AI Technical Summary
[0006]因此，本实用新型目的是提供一种具备散热结构的钻筒，能够解决现有钻筒在钻取过程中热量无法及时散逸、刀齿磨损加剧、切削精度下降以及钻筒变形或损坏的问题
1、本方案设计的钻筒散热结构，通过在防护外筒体一端套设包含通风筒体、导向滑条、水冷导流罩、高压喷头、冷水存储器及微型水泵的散热组件，能够在钻取筒体钻取岩石、土壤或其他地层时，对刀齿及摩擦热区进行高效降温和冷却，该结构设计不仅能快速带走钻取过程中产生的热量，降低刀齿磨损和切削精度下降的风险，还能防止钻筒发生塑性变形或材料退火现象，延长钻具使用寿命，同时，冷却水冲洗钻屑，有助于保持钻芯完整性和钻取效率，并通过循环使用实现节能和连续作业能力提升，从而在高强度作业环境下显著提高钻具可靠性、降低维护成本，并改善整体作业效率。
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Figure CN224717656U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drill barrel technology, and in particular to a drill barrel with a heat dissipation structure. Background Technology
[0002] A drill barrel is a mechanical component used in drilling operations. It is typically cylindrical and serves to guide, support, and protect the drill bit or sampling tools during rotation and downward pressure. The main functions of a drill barrel include maintaining drill string stability, preventing deviation during drilling, and improving drilling accuracy. In some structures, it can also serve to remove cuttings and guide flow. Drill barrels are widely used in geotechnical engineering, mining exploration, oil and gas drilling, and geological sampling. When used in conjunction with power systems and sampling components, they enable the drilling and sampling of materials such as strata, rocks, and soil, providing reliable data for engineering design, resource exploration, and scientific research analysis.
[0003] In the fields of geological exploration and civil engineering, drill pipes are key sampling tools for obtaining rock cores and soil samples, and their structural design directly affects sample integrity and collection efficiency. Currently, during drilling, the friction between the cutting teeth and the outer surface of the drill pipe and the rock or soil layer generates a large amount of heat. If this heat cannot be dissipated in a timely and efficient manner, it may lead to accelerated wear of the cutting teeth, decreased cutting accuracy, and even plastic deformation, material annealing, or structural damage to the drill pipe, thereby affecting sampling quality and on-site operational safety. Existing drill pipe technologies mostly rely on reserved ventilation slots or passive ventilation for heat dissipation, but such heat exchange structures have low heat exchange efficiency and slow response, making it difficult to meet the heat dissipation requirements of drilling in hard strata or long-term continuous operations.
[0004] Therefore, there is an urgent need for a drill barrel with an effective heat dissipation structure to solve the problems of insufficient heat dissipation, short service life, and low operational reliability of traditional drill barrels in high-temperature environments. Based on this, we propose a drill barrel with a heat dissipation structure. Utility Model Content
[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of the present invention, to avoid obscuring the purpose of these documents, and such simplifications or omissions should not be construed as limiting the scope of the present invention.
[0006] Therefore, the purpose of this utility model is to provide a drill barrel with a heat dissipation structure, which can solve the problems of heat not being dissipated in time, increased wear of cutting teeth, decreased cutting accuracy, and deformation or damage of the drill barrel during the drilling process.
[0007] To solve the above technical problems, this utility model provides a drill barrel with a heat dissipation structure, and adopts the following technical solution: it includes a protective outer cylinder, one end of which is fitted with a heat dissipation component, one end of which is installed with a motor drive, and the end of the protective outer cylinder away from the motor drive is also provided with a sampling drilling component. The heat dissipation component includes a ventilation cylinder, the inner wall of which is provided with a number of circumferentially arranged guide rails, and a water-cooled flow guide shroud is installed at one end of the ventilation cylinder, the inner wall of which is provided with a number of circumferentially arranged high-pressure nozzles.
[0008] Optionally, a cold water storage device is installed on the outside of the ventilation cylinder, and a micro water pump is installed on the outside of the water-cooled guide shroud. The cold water storage device, the micro water pump, and the high-pressure nozzle are all connected by a water supply pipe.
[0009] Optionally, a transmission connecting seat is installed on the top of the protective outer cylinder, and a transmission gear disk is connected to one end of the transmission connecting seat. The transmission gear disk is connected to the motor drive via a transmission belt. Several sets of circumferentially arrayed guide grooves are opened on the outer side of the protective outer cylinder. The guide grooves are matched with the guide strip structure, and the guide grooves and guide strips are in sliding fit.
[0010] Optionally, the sampling drilling component includes a drilling cylinder, one end of which is provided with a plurality of sets of circumferentially distributed alloy cutting teeth, and the end of the drilling cylinder away from the alloy cutting teeth is connected to a transmission connecting rod, the outer side of which is provided with circumferentially distributed blades, and the end of the transmission connecting rod away from the drilling cylinder is also equipped with a concave turntable, which is fixedly connected to the output end of the transmission connecting seat.
[0011] Optionally, the protective outer cylinder has a groove inside, and an annular guide groove is provided on the inner side of the end of the protective outer cylinder near the transmission connection seat.
[0012] Optionally, the groove is fitted with the drilling cylinder and blades in a transition fit, and the annular guide groove is fitted with the concave turntable in a rotation fit.
[0013] In summary, this utility model has at least one of the following beneficial effects: 1. The drill barrel heat dissipation structure designed in this scheme, by fitting a heat dissipation component including a ventilation cylinder, guide rails, water-cooled flow guide shroud, high-pressure nozzle, cold water storage tank, and micro water pump at one end of the protective outer cylinder, can efficiently cool and dissipate the cutting teeth and friction heat zone when drilling rocks, soil, or other strata. This structural design can not only quickly remove the heat generated during drilling, reducing the risk of cutting tooth wear and decreased cutting accuracy, but also prevent plastic deformation or material annealing of the drill barrel, extending the service life of the drill bit. At the same time, the cooling water washes away drill cuttings, helping to maintain the integrity of the drill core and drilling efficiency. Through recycling, energy saving and continuous operation capabilities are improved, thereby significantly improving the reliability of the drill bit, reducing maintenance costs, and improving overall operation efficiency in high-intensity working environments.
[0014] 2. The drill barrel heat dissipation structure designed in this scheme utilizes a transmission connecting rod, an inner concave turntable, and outer peripheral blades installed at the top of the drill barrel. The high-pressure airflow generated by the high-speed rotation of the blades within the barrel grooves provides air cooling to the friction heat zone. Hot air is then discharged through ventilation holes on the outside of the drill barrel, achieving secondary heat dissipation. The rotational cooperation between the annular guide groove and the inner concave turntable ensures stable guidance of the drill barrel during high-speed rotation, preventing swaying or deviation. Through the synergistic effect of air-water combined heat dissipation, the uniformity of temperature distribution at the drill tip can be effectively improved, reducing the risk of heat accumulation while maintaining mechanical stability and cutting accuracy. Overall, this scheme significantly improves the durability and operational reliability of the drill barrel, ensuring long-term continuous operation, reducing equipment failure rates, and improving sampling quality. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the motor drive structure of this utility model; Figure 3 This is a cross-sectional view of the water-cooled guide shield of this utility model; Figure 4 This is a schematic diagram of the guide groove structure of this utility model; Figure 5 This is a schematic diagram of the sampling and drilling component of this utility model; Figure 6 This is a schematic diagram of the internal plan of the protective outer cylinder of this utility model.
[0017] Explanation of reference numerals in the attached drawings: 1. Protective outer cylinder; 2. Heat dissipation assembly; 3. Motor drive; 4. Sampling and drilling component; 5. Ventilation cylinder; 6. Guide slide; 7. Water-cooled guide shroud; 8. High-pressure nozzle; 9. Cold water storage tank; 10. Miniature water pump; 11. Transmission connecting seat; 12. Transmission gear disc; 13. Guide slide groove; 14. Drilling cylinder; 15. Alloy cutting teeth; 16. Transmission connecting rod; 17. Blade; 18. Concave turntable; 19. Cylinder groove; 20. Annular guide groove. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] Example: Refer to Figures 1 to 6 This utility model provides an embodiment of a drill barrel with a heat dissipation structure, including a protective outer cylinder 1. A heat dissipation component 2 is fitted at one end of the protective outer cylinder 1, and a motor drive 3 is installed at one end of the protective outer cylinder 1. A sampling drilling component 4 is also provided inside the end of the protective outer cylinder 1 away from the motor drive 3. The heat dissipation component 2 includes a ventilation cylinder 5. The inner wall of the ventilation cylinder 5 is provided with several sets of circumferentially arrayed guide rails 6. A water-cooled guide shroud 7 is installed at one end of the ventilation cylinder 5. The inner wall of the water-cooled guide shroud 7 is provided with several sets of circumferentially arrayed high-pressure nozzles 8. When the drilling cylinder 14 drills into rocks, soil, or other materials... When drilling and sampling the formation, the ventilation cylinder 5 and the water-cooled guide shroud 7 can conceal the exposed drilling cylinder 14 and guide and limit the drilling port to prevent the drilling cylinder 14 from shaking or shifting during drilling. When the micro water pump 10 is powered on, it can transport the water in the cold water storage 9 to the high-pressure nozzle 8 on the inner wall of the water-cooled guide shroud 7. The spray nozzle of the high-pressure nozzle 8 is at the same level as the drilling port of the drilling cylinder 14, which can spray high-pressure water to treat the contact surface between the drilling cylinder 14 and the rock, and quickly cool down the heat generated by the friction contact surface.
[0020] A cold water storage tank 9 is installed on the outside of the ventilation cylinder 5, and a micro water pump 10 is installed on the outside of the water-cooled guide shroud 7. The cold water storage tank 9, the micro water pump 10, and the high-pressure nozzle 8 are all connected by water supply pipes. By installing the cold water storage tank 9 on the outside of the ventilation cylinder 5 and the micro water pump 10 on the outside of the water-cooled guide shroud 7, the water in the cold water storage tank 9 can be transported to the high-pressure nozzle 8 on the inner wall of the water-cooled guide shroud 7 through the micro water pump 10. This achieves continuous high-pressure water spray cooling treatment of the drilling port and friction contact surface of the drilling cylinder 14, thereby quickly removing the heat generated during drilling and reducing the risk of tool wear and decreased cutting accuracy. A transmission connection seat 11 is installed on the top of the protective outer cylinder 1. One end of 11 is connected to a transmission gear disk 12, which is connected to the motor drive 3 via a transmission belt. Several sets of circumferentially distributed guide grooves 13 are provided on the outer side of the protective outer cylinder 1. The guide grooves 13 and guide strips 6 are structurally matched and are in sliding fit. Through the structural design of the sliding fit between the guide grooves 13 and guide strips 6, the ventilation cylinder 5 equipped with a water-cooled flow guide shroud 7 and a cold water storage 9 can be sleeved and fixed on the outer side of one end of the protective outer cylinder 1. This can realize the function of storing and guiding the drilling cylinder 14, preventing the drilling cylinder 14 from shaking or radially shifting during drilling, and improving the stability and sampling accuracy of drilling operations.
[0021] The sampling drilling component 4 includes a drilling cylinder 14. One end of the drilling cylinder 14 is provided with several sets of circumferentially arranged alloy cutting teeth 15. A transmission connecting rod 16 is connected to the end of the drilling cylinder 14 away from the alloy cutting teeth 15. Circumferentially arranged blades 17 are distributed on the outer side of the transmission connecting rod 16. An inwardly recessed turntable 18 is also installed at the end of the transmission connecting rod 16 away from the drilling cylinder 14. The inwardly recessed turntable 18 is fixedly connected to the output end of the transmission connecting seat 11. By adding multiple sets of blades 17 to the outer side of the transmission connecting rod 16, a high-pressure airflow can be generated when the drilling cylinder 14 rotates at high speed, which can provide air cooling to dissipate the heat generated by the alloy cutting teeth 15 at the drilling end and their friction contact surfaces. A groove 19 is opened inside the protective outer cylinder 1. The end of the protective outer cylinder 1 near the transmission connecting seat 11... An annular guide groove 20 is provided on the inner side. Through the groove 19 opened inside the protective outer cylinder 1 and the annular guide groove 20 opened on the inner side of one end of the protective outer cylinder 1, radial and axial movement space and guide channels can be provided for the drilling cylinder 14 and its transmission connecting rod 16. This enables the drilling cylinder 14 to maintain stable guidance during rotation and vertical movement, preventing shaking or deviation. The groove 19 is in transition fit with the drilling cylinder 14 and the blade 17, and the annular guide groove 20 is in rotation fit with the concave turntable 18. Through the structural design of the rotation fit between the annular guide groove 20 and the concave turntable 18, it can be ensured that the drilling cylinder 14 maintains stable guidance during rotation and vertical movement, avoiding shaking or deviation, and achieving high precision, stability and reliability of sampling quality in drilling operations.
[0022] Working Principle: The drill barrel heat dissipation structure designed in this scheme achieves efficient cooling by fitting a heat dissipation component 2, which includes a ventilation cylinder 5, guide rails 6, a water-cooled guide shroud 7, a high-pressure nozzle 8, a cold water storage tank 9, and a micro water pump 10, onto one end of the protective outer cylinder 1. When the drill barrel 14 is drilling and sampling rock, soil, or other strata, the ventilation cylinder 5 and the water-cooled guide shroud 7 not only conceal the exposed drill barrel 14 but also guide and limit the drilling port, preventing the drill barrel 14 from shaking or shifting during drilling. At the same time, when the micro water pump 10 is powered on, it can deliver water from the cold water storage tank 9 to the high-pressure nozzle 8 on the inner wall of the water-cooled guide shroud 7. The spray nozzle of the high-pressure nozzle 8 is at the same level as the drilling port of the drill barrel 14, thereby spraying high-pressure water onto the contact surface between the drill barrel 14 and the rock, achieving rapid cooling of the heat generated by the friction contact surface.
[0023] The drill barrel heat dissipation structure designed in this scheme achieves both efficient heat dissipation and stable operation during drilling and sampling by adding a transmission connecting rod 16 and a concave turntable 18 to the top of the drill barrel 14, and adding blades 17 around the outside of the transmission connecting rod 16. The annular guide groove 20 and the concave turntable 18 are in a rotating fit. When the drill barrel 14 rotates at high speed, it can guide and limit one end of the drill barrel 14 to prevent it from shaking during high-speed rotation. At the same time, the cylinder groove 19 and the drill barrel 14 are in a transition fit. When the drill barrel 14 rotates, the blades 17 rotate at high speed inside the cylinder groove 19, generating a high-pressure airflow. The high-pressure airflow overflows from the gap between the drill barrel 14 and the cylinder groove 19 and blows along the drill barrel 14 towards the hot area of the friction contact surface, performing air cooling heat dissipation on the contact surface. After air cooling heat dissipation, the hot airflow is discharged through the ventilation holes on the outside of the ventilation cylinder 5, thereby achieving secondary heat dissipation of the drilling contact surface and further improving the heat dissipation efficiency.
[0024] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A drill barrel with a heat dissipation structure, comprising a protective outer cylinder (1), characterized in that: A heat dissipation component (2) is fitted at one end of the protective outer cylinder (1), a motor drive (3) is installed at one end of the protective outer cylinder (1), and a sampling drilling component (4) is also provided inside the end of the protective outer cylinder (1) away from the motor drive (3). The heat dissipation component (2) includes a ventilation cylinder (5), the inner wall of which is provided with a number of guide strips (6) arranged in a circular array, and a water-cooled guide shroud (7) is installed at one end of the ventilation cylinder (5), the inner wall of which is provided with a number of high-pressure nozzles (8) arranged in a circular array.
2. The drill barrel with a heat dissipation structure according to claim 1, characterized in that: A cold water storage device (9) is installed on the outside of the ventilation cylinder (5), and a micro water pump (10) is installed on the outside of the water-cooled guide shroud (7). The cold water storage device (9), the micro water pump (10), and the high-pressure nozzle (8) are all connected by water supply pipes.
3. A drill barrel with a heat dissipation structure according to claim 2, characterized in that: The protective outer cylinder (1) is equipped with a transmission connecting seat (11) at the top. One end of the transmission connecting seat (11) is connected to a transmission gear disk (12). The transmission gear disk (12) is connected to the motor drive (3) through a transmission toothed belt. Several sets of circumferentially distributed guide grooves (13) are opened on the outer side of the protective outer cylinder (1). The guide grooves (13) are structurally matched with the guide strips (6). The guide grooves (13) and the guide strips (6) are in sliding fit.
4. A drill barrel with a heat dissipation structure according to claim 3, characterized in that: The sampling drilling component (4) includes a drilling cylinder (14). One end of the drilling cylinder (14) is provided with a number of sets of circumferentially distributed alloy cutting teeth (15). The end of the drilling cylinder (14) away from the alloy cutting teeth (15) is connected to a transmission connecting rod (16). The outer side of the transmission connecting rod (16) is provided with circumferentially distributed blades (17). The end of the transmission connecting rod (16) away from the drilling cylinder (14) is also equipped with a concave turntable (18). The concave turntable (18) is fixedly connected to the output end of the transmission connecting seat (11).
5. A drill barrel with a heat dissipation structure according to claim 4, characterized in that: The protective outer cylinder (1) has a cylinder groove (19) inside, and an annular guide groove (20) is provided on the inner side of the end of the protective outer cylinder (1) near the transmission connection seat (11).
6. A drill barrel with a heat dissipation structure according to claim 5, characterized in that: The groove (19) is in transition fit with the drilling cylinder (14) and the blade (17), and the annular guide groove (20) is in rotation fit with the concave turntable (18).