Reamer bit for exploration
By installing a liquid guiding device on the reaming drill bit and adjusting the coolant flow direction, the problem of drill bit overheating was solved, achieving efficient cooling and stable cutting under different working conditions, extending drill bit life and improving borehole quality.
Patent Information
- Application Number
- CN202522502592.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-26
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-11-26
AI Technical Summary
The existing cooling methods for reaming drill bits cannot be adjusted according to different working conditions, resulting in localized overheating of the drill bit, which affects cutting stability and hole formation quality, and shortens the drill bit life.
A reaming drill bit with a liquid guiding device was designed. The flow direction of the coolant can be adjusted through various connection methods, including a first relative position relationship and a second relative position relationship, which is suitable for different speed conditions and achieves effective cooling of the drill bit.
It improves the adaptability and reliability of reaming drill bits under different working conditions, avoids overheating of drill bits, extends service life, and improves the quality of hole formation.
Smart Images
Figure CN223824923U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a geotechnical exploration equipment technical field, specifically point to a kind of reaming drill bit for exploration. BACKGROUND
[0002] In the geological exploration reaming operation, the reaming drill bit is seriously heated by friction, and the use of coolant is a necessary measure to ensure the operation quality and prolong the service life of the drill bit.
[0003] But the cooling mode of prior art has some defects, the core of the problem is that: different reaming operation conditions will cause the area of drill bit heat generation to change accordingly. The existing cooling area is solidified and cannot be manually intervened and adjusted.
[0004] As a result, local overheating of the drill bit is difficult to avoid, which not only accelerates the wear of the drill bit and shortens its service life, but more importantly, uneven temperature rise will directly affect the cutting stability of the drill bit and the forming quality of the hole, thereby reducing the final effect of the entire exploration reaming operation.
[0005] The information disclosed in this BACKGROUND section is only for the purpose of increasing the understanding of the background of the present utility model and should not be regarded as an acknowledgment or any form of suggestion that it forms prior art that is already known to those of ordinary skill in the art. SUMMARY
[0006] The technical problem to be solved by the utility model is to overcome the above problems, and provide a reaming drill bit for exploration.
[0007] To solve the above technical problems, the utility model provides a technical scheme: a reaming drill bit for exploration, comprising a drill bit body with a threaded column, further comprising: a liquid guiding device connected with the drill bit body;
[0008] The liquid guiding device comprises a fixed block containing a first liquid flow channel, the fixed block is connected to the threaded column through a connecting sleeve, and the fixed block divides the inner cavity of the connecting sleeve into a first chamber and a second chamber;
[0009] The connecting sleeve and the threaded column are connected to form at least the following relative position relationships:
[0010] The first relative position relationship is that the threaded column is located in the first chamber;
[0011] The second relative position relationship is that the threaded column is located in the second chamber;
[0012] Moreover, the first liquid flow channel comprises a guiding cavity opened in the fixed block and a guiding hole communicating the guiding cavity and the first chamber, and at least one pair of drainage channels are further opened in the fixed block, and the drainage channels communicate the guiding cavity and the second chamber.
[0013] Preferably, the outer wall of the drill bit body is fixedly connected with N reamers, wherein N is greater than or equal to 4.
[0014] Preferably, the guide cavity is provided with a metal ball.
[0015] Preferably, the outer wall of the connecting sleeve is provided with at least four flow guide holes, and the fixing block is provided with flow guide channels corresponding to the flow guide holes.
[0016] Preferably, the drill bit body is provided with a second liquid flow channel.
[0017] The second liquid flow channel comprises a liquid cavity provided in the drill bit body, a pair of liquid inlet channels provided on the threaded column, and M first liquid outlet channels provided on the drill bit body, wherein M is equal to N, and each reamer is provided with a second liquid outlet channel, and the first liquid outlet channel and the second liquid outlet channel are communicated.
[0018] Preferably, in the first relative position relationship, the fixing block and the threaded column are in abutment, and in the abutment state, the outer peripheral wall of the threaded column completely covers and blocks the entrance of the guide hole.
[0019] Preferably, in the second relative position relationship, the fixing block and the threaded column are in abutment, and the flow guide channel is aligned with and communicated with the liquid inlet channel.
[0020] Compared with the prior art, the utility model has the advantages that:
[0021] The utility model sets up liquid guide device, and cooperation drill bit body uses. There are multiple connecting modes between liquid guide device and drill bit body, including first relative position relationship and second relative position relationship.
[0022] In the first relative position relationship, the cooling liquid is removed from the flow guide channel and the flow guide hole to the outside, and then the cooling liquid can be affected by gravity to the outer wall of the drill bit body, thereby cooling the drill bit body, and being suitable for low speed working conditions.
[0023] In the second relative position relationship, the cooling liquid can cool the inside and outside of the drill bit body, avoid the crack of the drill bit body caused by the large temperature difference between the inside and outside, and be suitable for high speed continuous drilling operation.
[0024] In summary, the utility model can meet the diversified reaming demand by simply adjusting the connecting mode, significantly improve the adaptability and reliability of the equipment in different application scenarios, and truly realize the high efficiency and economy of "one device for multiple purposes". BRIEF DESCRIPTION OF DRAWINGS
[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.
[0026] Figure 1 is the state diagram when the present application is used.
[0027] Figure 2 is the perspective view of the drill bit body in the present application.
[0028] Figure 3 is the perspective view of the liquid guiding device in the present application.
[0029] Figure 4 is the structure diagram of the liquid guiding device in the present application.
[0030] Figure 5 is the structure diagram of the drill bit body in the present application.
[0031] Fig. 6 is a structure schematic diagram of the present application in a first relative position relationship.
[0032] Fig. 7 is a structure schematic diagram of the present application in a second relative position relationship.
[0033] As shown in the figure:
[0034] 1, drill bit body; 2, threaded column; 3, fixed block;
[0035] 4, first liquid flow channel; 401, guiding cavity; 402, guiding hole; 403, drainage passage; 404, metal ball; 405, flow guiding hole; 406, flow guiding passage;
[0036] 5, connecting sleeve; 6, first cavity; 7, second cavity; 8, reaming cutter;
[0037] 9, second liquid flow channel; 901, liquid cavity; 902, liquid inlet passage; 903, first liquid outlet passage; 904, second liquid outlet passage. DETAILED DESCRIPTION
[0038] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor fall within the scope of the present utility model. Embodiments
[0039] As Figure 2 shown, the utility model provides a reaming drill bit for exploration, including drill bit body 1, wherein, the top end middle part of drill bit body 1 is fixedly connected with threaded column 2, simultaneously, the upper portion of the outer wall of drill bit body 1 is surrounded and welded with N reaming cutters 8, in this embodiment, the number of reaming cutters 8 is 4, and the interval between the four reaming cutters 8 is uniform.
[0040] As Figure 1 and Figure 4 shown, the liquid guiding device is connected on drill bit body 1. Specifically, the liquid guiding device includes connecting sleeve 5, the inner wall middle part of connecting sleeve 5 is fixedly connected with fixed block 3, fixed block 3 divides connecting sleeve 5 into two independent chambers, in this embodiment, the upper chamber is named as first chamber 6 and the lower chamber is second chamber 7, and at the same time, threaded grooves are formed on the inner walls of first chamber 6 and second chamber 7.
[0041] Then, first liquid flow channel 4 is arranged on fixed block 3. Specifically, first liquid flow channel 4 includes cylindrical guide cavity 401 formed in the middle part of fixed block 3, guide hole 402 is formed through the inner wall of guide cavity 401, guide hole 402 communicates guide cavity 401 and first chamber 6; at the same time, at least two drainage channels 403 are formed on fixed block 3, drainage channels 403 are L-shaped, the proximal ends of the two drainage channels 403 are both communicated with guide cavity 401, the end of drainage channel 403 away from guide hole 402 is communicated with second chamber 7; in addition, at least four flow channels 406 are formed on the inner wall of guide cavity 401, and four flow holes 405 are formed on the outer wall of connecting sleeve 5, wherein, flow channels 406 are aligned with and communicated with corresponding flow holes 405; finally, metal ball 404 is filled in guide cavity 401, it is supplemented that metal ball 404 is made of 304 stainless steel, and the outer peripheral wall surface of metal ball 404 is attached to the inner wall of guide cavity 401.
[0042] Further, when the connecting sleeve 5 rotates, the metal ball 404 will freely roll in the guide cavity 401. It is to be added that when the first chamber 6 is on top and the second chamber 7 is on bottom, the position of the metal ball 404 will not block the liquid circulation between the guide hole 402 and the guide cavity 401; and when the first chamber 6 is on bottom and the second chamber 7 is on top, the metal ball 404 will be blocked in the guide cavity 401 under the influence of gravity, and further, the metal ball 404 will block the liquid circulation between the guide hole 402 and the guide cavity 401.
[0043] Meanwhile, it is emphasized to see that Figure 5 As shown in the figure, a second liquid flow channel 9 is formed on the drill bit body 1, and the second liquid flow channel 9 is used in cooperation with the first liquid flow channel 4 to jointly control the liquid flow direction in the reaming drill bit. Specifically:
[0044] The second liquid flow channel 9 comprises a liquid cavity 901 formed in the interior of the drill bit body 1, and two liquid inlet channels 902 are formed on the threaded column 2, the liquid inlet channels 902 are L-shaped, the proximal ends of the bottom of the two liquid inlet channels 902 are in communication with the liquid cavity 901, and the other ends of the liquid inlet channels 902 penetrate through the top end of the threaded column 2 and are called the inlet.
[0045] A number of M first liquid outlet channels 903 are formed on the drill bit body 1, wherein M=N, the first liquid outlet channels 903 are arranged obliquely upward and tend to be flat near the reaming cutters 8, and a second liquid outlet channel 904 is formed on each reaming cutter 8, the second liquid outlet channel 904 is L-shaped, a filter screen is arranged on the inner wall of the second liquid outlet channel 904 to prevent blockage, and the first liquid outlet channel 903 and the second liquid outlet channel 904 are in communication.
[0046] Therefore, in the process of specific implementation, the connecting sleeve 5 is connected to the outer wall of the threaded column 2, and the connecting sleeve 5 is connected to the inner cylinder of the outside. In this way, the inner cylinder can drive the liquid guide device and the drill bit body 1 to rotate together, and further, the reaming operation on the geology can be performed while the drill bit body 1 rotates, and further, the drill bit body 1 can be cooled by the cooperation of the first liquid flow channel 4 and the second liquid flow channel 9 when the cooling liquid is injected into the inner cylinder. Embodiment
[0047] In order to further clearly and completely describe the connection mode of the drill bit body 1 and the liquid guide device in the above-mentioned embodiment one and the cooling mode of the drill bit body 1, the utility model also provides an embodiment two, in which the connection mode of the drill bit body 1 and the liquid guide device is at least provided in two kinds.
[0048] Specifically, the first relative position relationship and the second relative position relationship are included.
[0049] As shown in FIG. 6, the first relative position relationship is that the first chamber 6 is below, the second chamber 7 is above, and the threaded column 2 is located in the first chamber 6. Specifically, the threaded column 2 is screwed into the threaded groove in the inner wall of the first chamber 6, and the top end of the threaded column 2 abuts against the inner wall of the first chamber 6.
[0050] In this abutting state, the top end of the threaded column 2 completely covers and blocks the entrance of the guide hole 402.
[0051] Thus, in the second embodiment, the first chamber 6 is below, the second chamber 7 is above, so that the metal ball 404 is displaced toward the drill bit body 1 under the action of gravity and blocks the guide hole 402. Then, the inner tube is screwed onto the threaded groove in the inner wall of the second chamber 7, and the threaded column 2 is screwed onto the threaded groove in the inner wall of the first chamber 6.
[0052] Further, when the cooling liquid in the inner tube flows downward into the second chamber 7, it enters the guide cavity 401 through the two drainage channels 403. Since the metal ball 404 blocks the guide hole 402, the cooling liquid cannot enter the guide hole 402, and thus cannot enter the second liquid flow channel 9.
[0053] Thus, the cooling liquid is discharged to the outside through the flow guide 406 and the flow guide hole 405, and the cooling liquid can be affected by gravity to flow onto the outer wall of the drill bit body 1, thereby cooling the drill bit body 1.
[0054] Thus, in the second embodiment, the first relative position relationship is suitable for low-speed reaming operation of the reaming drill bit. Embodiment
[0055] The utility model also proposes embodiment three, explain second relative position relationship, please review the drawing 7 shown in embodiment three, second relative position relationship is first chamber 6 is above, second chamber 7 is below, threaded column 2 is located in second chamber 7;
[0056] Specifically, the threaded column 2 is screwed into the threaded groove in the inner wall of the second chamber 7, and the top end of the threaded column 2 abuts against the inner wall of the second chamber 7.
[0057] Under the second relative position relationship, the fixed block 3 and the threaded column 2 abut, the drainage channel 403 is aligned with and communicates with the liquid inlet channel 902.
[0058] Therefore, in the embodiment three, the first chamber 6 is above, the second chamber 7 is below, then the outer tube is connected with the thread groove on the inner wall of the first chamber 6, and the threaded column 2 is connected with the thread groove on the inner wall of the second chamber 7. In this way, the metal ball 404 is displaced to the position of the drill bit body 1 under the gravity, and the metal ball 404 does not block the guide hole 402 and the drainage channel 403 at this position.
[0059] In this way, the cooling liquid in the inner tube is displaced to the first chamber 6, the cooling liquid enters the guide cavity 401 from the guide hole 402, then sequentially passes through the drainage channel 403 and the liquid inlet channel 902 to enter the liquid cavity 901, and then the cooling liquid in the liquid cavity 901 sequentially passes through the first liquid outlet 903 and the second liquid outlet 904 to flow out to the outside, and reaches the outer wall of the drill bit body 1 by the gravity, so that the heat in the drill bit body 1 can be taken away, and the cooling liquid can also cool the outer wall of the drill bit body 1 when reaching the outer wall of the drill bit body 1. In this way, when the drill bit body 1 is cooled inside and outside, the crack of the drill bit body 1 caused by the large temperature difference between the inside and the outside can be avoided.
[0060] In summary, the reaming drill bit for exploration provided by the utility model at least has the following advantages:
[0061] The utility model sets up liquid guiding device, and cooperation drill bit body 1 is used. Liquid guiding device has two kinds of connection mode, namely first relative position relation and second relative position relation.
[0062] In the first relative position relation, the cooling liquid is discharged to the outside from the flow guide 406 and the flow guide hole 405, and then the cooling liquid can reach the outer wall of the drill bit body 1 by the gravity, so that the drill bit body 1 can be cooled.
[0063] In the second relative position relation, when the cooling liquid cools the drill bit body 1 inside and outside, the crack of the drill bit body 1 caused by the large temperature difference between the inside and the outside can be avoided.
[0064] The utility model and its implementation mode are described above, and the description is not restrictive. The embodiment shown in the drawings is only one of the embodiments of the utility model, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired thereby, without departing from the creative purpose of the utility model, similar structural modes and embodiments are not creatively designed, which should belong to the protection scope of the utility model.
[0065] The detailed description of known functions and known components is omitted in the specific embodiment of the disclosure. To ensure the compatibility of the device, the operation means adopted is consistent with the parameters of the market instruments.
Claims
1. A reaming bit for exploration, comprising a bit body (1) with a threaded shank (2), characterized in that, Also comprising: a liquid guiding device connected with the drill bit body (1); the liquid guiding device comprises a fixed block (3) containing a first liquid flow channel (4), the fixed block (3) is connected on the threaded column (2) through a connecting sleeve (5), the fixed block (3) divides the inner cavity of the connecting sleeve (5) into a first chamber (6) and a second chamber (7); wherein, the connecting sleeve (5) and the threaded column (2) are connected to form at least the following relative position relationship: a first relative position relationship, the threaded column (2) is located in the first chamber (6); a second relative position relationship, the threaded column (2) is located in the second chamber (7); and the first liquid flow channel (4) comprises a guide cavity (401) opened in the fixed block (3), and a guide hole (402) connecting the guide cavity (401) and the first chamber (6), at least one pair of drainage channels (403) are also opened on the fixed block (3), the drainage channels (403) connect the guide cavity (401) and the second chamber (7).
2. A reamer bit for exploration as claimed in claim 1, wherein: The outer wall of the drill bit body (1) is fixedly connected with N number of reaming cutters (8), wherein N≥4.
3. A reamer bit for exploration as claimed in claim 1, wherein: The guide cavity (401) is provided with a metal ball (404).
4. A reamer bit for exploration as claimed in claim 1, wherein: At least four flow guide holes (405) are opened on the outer wall of the connecting sleeve (5), and the same number of flow guide channels (406) are opened on the fixed block (3), the flow guide channels (406) connect the corresponding flow guide holes (405) and the guide cavity (401).
5. A reamer bit for exploration as claimed in claim 2, wherein: The drill bit body (1) is provided with a second liquid flow channel (9); The second liquid flow channel (9) comprises a liquid cavity (901) opened in the drill bit body (1), a pair of liquid inlet channels (902) are also opened on the threaded column (2), the liquid inlet channels (902) and the liquid cavity (901) are connected, and M number of first liquid outlet channels (903) are also opened on the drill bit body (1), wherein M=N, a second liquid outlet channel (904) is opened on each reaming cutter (8), and the first liquid outlet channel (903) and the second liquid outlet channel (904) are connected.
6. A reamer bit for exploration as claimed in claim 5, wherein: In the first relative position relationship, the fixed block (3) and the threaded column (2) are in abutment, and in this abutment state, the outer peripheral wall surface of the threaded column (2) completely covers and blocks the entrance of the guide hole (402).
7. A reamer bit for exploration as claimed in claim 5, wherein: In the second relative position relationship, the fixed block (3) and the threaded column (2) are in abutment, the drainage channels (403) are aligned with and connected to the liquid inlet channels (902).