Novel drilling bit with ultrasonic vibration assisting and intelligent flushing functions

Abstract

The utility model discloses a novel drilling bit with ultrasonic vibration assisting and intelligent flushing functions, and belongs to the technical field of drilling, the novel drilling bit with the ultrasonic vibration assisting and intelligent flushing functions comprises a bit main body, the bit main body comprises a plurality of drilling tools, a connecting body and a plurality of flushing holes, the drilling tools are evenly distributed on the drill bit body in the circumferential direction and used for cutting and drilling, and the flushing holes are evenly distributed in the drill bit body in the circumferential direction and used for flushing the drill bit for cooling. An ultrasonic generator is further installed on the drill bit body and used for assisting drilling work. Cutting force can be reduced, chip removal is accelerated, and cutting efficiency is improved.

Description

Technical Field

[0001] This application relates to a novel drilling bit with ultrasonic vibration assistance and intelligent flushing function, belonging to the field of drilling technology. Background Technology

[0002] Traditional drilling bits face numerous challenges in applications in mining, oil, and natural gas industries. Although existing drill bit designs can meet basic drilling requirements, they still suffer from problems such as high cutting forces, difficulty in chip removal, and severe thermal damage when dealing with hard rocks, complex geological structures, and deep hole drilling.

[0003] For example, a mining composite drill bit authorized on October 29, 2024, with announcement number CN221920836U, includes a diamond drill body, an outer casing of a down-the-hole drill housing, a connector fixedly installed on the bottom of the diamond drill body, a sealed cavity inside the connector, several nozzles evenly distributed on the top of the diamond drill body, a return spring fixedly installed in the sealed cavity, a blocking piston fixedly connected to the other end of the return spring, a limiting protrusion fixedly installed on the inner wall of the down-the-hole drill housing, and a limiting groove opened on the outer wall of the diamond drill body, with the limiting groove and the limiting protrusion cooperating with each other.

[0004] Although the aforementioned patents have largely solved the problem of cutting heat, they still suffer from problems such as high cutting force, difficulty in chip removal, and low cutting efficiency. Utility Model Content

[0005] The technical problem to be solved by this application is to overcome the shortcomings of the prior art and provide a new type of drilling bit with ultrasonic vibration assistance and intelligent flushing function, which can reduce cutting force, accelerate chip removal and improve cutting efficiency.

[0006] The technical solution adopted by this application to solve its existing problems is:

[0007] A novel drilling bit with ultrasonic vibration assistance and intelligent flushing function includes a drill bit body, which includes multiple drill bits, a connector and multiple flushing holes. The drill bits are evenly distributed around the circumference of the drill bit body and are used for cutting and drilling. The flushing holes are evenly distributed around the circumference of the drill bit body and are used to flush the drill bit for cooling. The connector is fixedly installed below the drill bit body.

[0008] The drill bit body is also equipped with an ultrasonic generator to assist in drilling operations.

[0009] Preferably, the drill bit body has a first cavity, and the first cavity has radially arranged conveying holes on both sides, the conveying holes communicating with the first cavity;

[0010] The upper end of the conveying hole is provided with a diversion ring hole, the conveying hole is connected to the diversion ring hole, and the diversion ring hole is also connected to the flushing hole.

[0011] Preferably, the connecting body is provided with an injection hole, which communicates with the first cavity;

[0012] A first reset spring is installed inside the first cavity. One end of the first reset spring abuts against the first cavity, and the other end of the first reset spring is fixedly connected to a switch plug. The switch plug is slidably connected to the first cavity.

[0013] Preferably, the connecting body is further provided with a second cavity, the second cavity penetrating the injection hole.

[0014] Preferably, a bidirectional cylinder is installed on the connecting body, and the cylinder push rod of the bidirectional cylinder extends into the second cavity, and the cylinder push rod is slidably connected to the second cavity.

[0015] Preferably, the cylinder push rod is provided with a first through hole and a second through hole, and the injection hole communicates with the first through hole or the second through hole.

[0016] Preferably, a switch push rod is also installed in the second cavity, one end of the switch push rod abutting against the cylinder push rod, and the other end of the switch push rod extending out of the second cavity;

[0017] A second reset spring is sleeved on the switch push rod, and the two ends of the second reset spring abut against the switch push rod and the second cavity, respectively.

[0018] Preferably, the drill bit body is also equipped with an ultrasonic generator, and the ultrasonic generator is equipped with a switch, which is fixedly connected to the other end of the switch push rod.

[0019] Compared with the prior art, the beneficial effects of this application are as follows:

[0020] This application features a clever design that can cool the drill bit in a timely manner, preventing damage from high temperatures during drilling and extending its service life.

[0021] The ultrasonic generator produces high-frequency vibrations and transmits these vibrations to the drill bit. The ultrasonic vibrations can disrupt the continuity of the rock, reduce cutting forces, improve drilling efficiency, and enhance chip removal.

[0022] The switching design of the first and second through holes on the cylinder push rod allows for separate cooling operations, separate ultrasonic vibration operations, or simultaneous cooling and ultrasonic vibration operations. Attached Figure Description

[0023] Figure 1This is a structural diagram of a novel drilling bit with ultrasonic vibration assistance and intelligent flushing function according to this application;

[0024] Figure 2 This is a partial front cross-sectional view of a novel drilling bit with ultrasonic vibration assistance and intelligent flushing function according to this application.

[0025] Figure 3 This is a right-side full-section view of a novel drilling bit with ultrasonic vibration assistance and intelligent flushing function according to this application.

[0026] In the picture:

[0027] 1. Drill bit assembly; 101. Drill bit body; 102. Connector; 103. Flushing hole; 104. Diverter ring hole; 105. Conveyor hole; 106. First cavity; 107. First return spring; 108. On / off plug; 109. Second cavity; 1010. Injection hole; 1011. Main drain hole; 1012. Sub-drain hole; 1013. Drill bit; 2. Ultrasonic generator; 201. Switch; 3. Two-way cylinder; 301. Cylinder push rod; 30101. First through hole; 30102. Second through hole; 4. Switch push rod; 5. Second return spring. Detailed Implementation

[0028] The specification and claims use certain terms to refer to specific components. Those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0029] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0030] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0031] like Figures 1-3 The diagram illustrates a novel drilling bit with ultrasonic vibration assistance and intelligent flushing function. It includes a drill bit assembly 1, comprising a drill bit body 101, a connecting body 102, multiple flushing holes 103, and multiple drill bits 1013. The drill bits 1013 are evenly distributed circumferentially on the drill bit body 101 and are used for cutting during drilling. The flushing holes 103 are also evenly distributed circumferentially on the drill bit body 101 and are used to flush the drill bit for cooling. The connecting body 102 is fixedly installed below the drill bit body 101. An ultrasonic generator 2 is also installed on the drill bit body 101 to assist drilling operations.

[0032] like Figure 2 As shown, the drill bit body 101 has a first cavity 106 inside, and conveying holes 105 are radially provided on both sides of the first cavity 106, which communicate with the first cavity 106. A flow-dividing ring hole 104 is provided at the upper end of the conveying hole 105, and the conveying hole 105 communicates with the flow-dividing ring hole 104. The flow-dividing ring hole 104 is a 360° annular hole and also communicates with a flushing hole 103. An injection hole 1010 is provided inside the connecting body 102. The upper end of the injection hole 1010 communicates with the lower end of the first cavity 106, and the lower end of the injection hole 1010 is connected to high-pressure coolant.

[0033] The first cavity 106 is also equipped with a first return spring 107. The lower end of the first return spring 107 is fixedly connected to a switch plug 108, and the upper end of the first return spring 107 abuts against the upper end of the first cavity 106. The switch plug 108 abuts against the lower end of the first cavity 106 and is slidably connected to the first cavity 106.

[0034] The connecting body 102 also has a second cavity 109, through which the injection hole 1010 passes. A bidirectional cylinder 3 is mounted on the connecting body 102, and the cylinder push rod 301 of the bidirectional cylinder 3 extends into the second cavity 109, with the cylinder push rod 301 slidably connected to the second cavity 109. The cylinder push rod 301 has a first through hole 30101 and a second through hole 30102, and the injection hole 1010 communicates with either the first through hole 30101 or the second through hole 30102. The bidirectional cylinder 3 drives the cylinder push rod 301 to move bidirectionally left or right.

[0035] A switch push rod 4 is also installed inside the second cavity 109. One end of the switch push rod 4 abuts against the cylinder push rod 301, and the other end of the switch push rod 4 extends out of the second cavity 109. A second return spring 5 is sleeved on the switch push rod 4, and the two ends of the second return spring 5 abut against the switch push rod 4 and the second cavity 109, respectively.

[0036] The ultrasonic generator 2 is equipped with a switch 201, which is fixedly connected to the other end of the switch push rod 4.

[0037] like Figure 3 As shown, the drill bit body 101 is provided with a main chip removal hole 1011, and the main chip removal hole 1011 is provided with radially arranged split chip removal holes 1012 on both sides. The split chip removal holes 1012 are connected to the main chip removal hole 1011. When the drill bit is drilling, the generated chips are discharged through the main chip removal hole 1011 and the split chip removal holes 1012 on both sides.

[0038] During drilling, the drill bit generates significant cutting heat between itself and the borehole wall. If the drill bit is not cooled promptly, the high temperatures generated during drilling will soften the drill bit material, reduce its hardness, and shorten its service life. High-pressure coolant is injected into the injection hole 1010. Entering through the injection hole 1010, the coolant passes through the first through-hole 30101 of the bidirectional cylinder 3, opening the on / off plug 108 and compressing the first return spring 107. It then enters the first cavity 106, and from there, it flows into the two side delivery holes 105. From the delivery holes 105, it enters the diversion ring hole 104. The high-pressure coolant then flows from the diversion ring hole 104 into each flushing hole 103, and is sprayed from the flushing hole 103 onto the space between the drill bit and the borehole wall. This entire flow process not only cools the space between the drill bit and the borehole wall but also cools the entire drill bit. When cooling is not required, the high-pressure coolant is turned off. At this time, the supply of high-pressure coolant to the drill bit stops, the first return spring 107 is reset, and the on / off plug 108 moves downward to block the injection hole 1010 and isolate the injection hole 1010 from the delivery hole 105.

[0039] To accelerate the chip removal speed of the main chip removal hole 1011 and the two side chip removal holes 1012, while reducing the cutting force and improving drilling efficiency, the bidirectional cylinder 3 is activated. The bidirectional cylinder 3 drives the cylinder push rod 301 to move to the left, and the second through hole 30102 connects with the injection hole 1010. The cylinder push rod 301 drives the switch push rod 4 to move to the left, and the switch push rod 4 pushes the switch 201 on the ultrasonic generator 2 to turn on. The second return spring 5 is compressed, and at this time the ultrasonic generator 2 starts to work, generating high-frequency vibration and transmitting the vibration to the drill bit. The ultrasonic vibration can disrupt the continuity of the rock, reduce the cutting force, improve drilling efficiency, accelerate the chip removal speed of the main chip removal hole 1011 and the two side chip removal holes 1012, and improve the chip removal effect. When ultrasonic vibration is not required, the bidirectional cylinder 3 drives the cylinder push rod 301 to move to the right, the first through hole 30101 connects with the injection hole 1010, the second reset spring 5 resets, drives the switch push rod 4 to move to the right, and pulls the switch 201 on the ultrasonic generator 2 to close.

[0040] While the ultrasonic generator 2 is connected, since the second through hole 30102 is connected to the injection hole 1010, if you want the drill bit to have both the auxiliary drilling function of the ultrasonic generator 2 and the cooling function, you can connect the high-pressure coolant again to cool the drill bit and the hole wall as described above. At this time, under the synergistic effect of ultrasonic vibration and intelligent cooling, the chips are ensured to be discharged quickly and smoothly, avoiding the drill jamming phenomenon, effectively reducing the wear and thermal damage of the drill bit, extending its service life, and reducing maintenance costs.

[0041] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.

Claims

1. A novel drilling bit with ultrasonic vibration assistance and intelligent flushing function, characterized in that: The system includes a drill bit assembly (1), which includes a drill bit body (101), a connector (102), multiple flushing holes (103), and multiple drill bits (1013). The drill bits (1013) are evenly distributed around the drill bit body (101) and are used for cutting and drilling. The flushing holes (103) are evenly distributed around the drill bit body (101) and are used to flush the drill bit for cooling. The connector (102) is fixedly installed below the drill bit body (101). An ultrasonic generator (2) is also installed on the drill bit body (101) to assist drilling operations.

2. The novel drilling bit with ultrasonic vibration assistance and intelligent flushing function according to claim 1, characterized in that: The drill bit body (101) has a first cavity (106) inside, and the first cavity (106) has radially arranged conveying holes (105) on both sides, and the conveying holes (105) are connected to the first cavity (106). The upper end of the conveying hole (105) is provided with a diversion ring hole (104), the conveying hole (105) is connected to the diversion ring hole (104), and the diversion ring hole (104) is also connected to the flushing hole (103).

3. A novel drilling bit with ultrasonic vibration assistance and intelligent flushing function according to claim 2, characterized in that: The connector (102) is provided with an injection hole (1010), which is connected to the first cavity (106); A first reset spring (107) is installed in the first cavity (106). One end of the first reset spring (107) abuts against the first cavity (106), and the other end of the first reset spring (107) is fixedly connected to a switch plug (108). The switch plug (108) is slidably connected to the first cavity (106).

4. A novel drilling bit with ultrasonic vibration assistance and intelligent flushing function according to claim 3, characterized in that: The connector (102) is further provided with a second cavity (109), which penetrates the injection hole (1010).

5. A novel drilling bit with ultrasonic vibration assistance and intelligent flushing function according to claim 4, characterized in that: A bidirectional cylinder (3) is installed on the connector (102). The cylinder push rod (301) of the bidirectional cylinder (3) extends into the second cavity (109), and the cylinder push rod (301) is slidably connected to the second cavity (109).

6. A novel drilling bit with ultrasonic vibration assistance and intelligent flushing function according to claim 5, characterized in that: The cylinder push rod (301) is provided with a first through hole (30101) and a second through hole (30102), and the injection hole (1010) is connected to the first through hole (30101) or the second through hole (30102).

7. A novel drilling bit with ultrasonic vibration assistance and intelligent flushing function according to claim 6, characterized in that: A switch push rod (4) is also installed in the second cavity (109). One end of the switch push rod (4) abuts against the cylinder push rod (301), and the other end of the switch push rod (4) extends out of the second cavity (109). A second reset spring (5) is sleeved on the switch push rod (4), and the two ends of the second reset spring (5) abut against the switch push rod (4) and the second cavity (109) respectively.

8. A novel drilling bit with ultrasonic vibration assistance and intelligent flushing function according to claim 7, characterized in that: The ultrasonic generator (2) is equipped with a switch (201), and the switch (201) is fixedly connected to the other end of the switch push rod (4).

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