A diamond drill bit water hole dismounting matched device and a using method thereof

Abstract

The application discloses a diamond drill bit water hole dismounting matched device and a use method thereof, and relates to the technical field of drill bit production. The device comprises a bottom plate and a back plate, the bottom plate and the back plate are perpendicular and connected, the bottom plate is provided with a rotating disc, and the rotating disc is fixed with a positioning column. The bottom plate is vertically provided with two limiting plates, the limiting plates are respectively located on the two sides of the rotating disc, the limiting plates abut against the back plate and are perpendicular to the back plate. The limiting plates are provided with a plurality of through holes, two pull rods are arranged between the limiting plates, the pull rods respectively pass through the through holes of the limiting plates on the two sides, and the pull rods are respectively located on the two sides of the drill bit to form movement limiting of the drill bit. The application can provide stable support for large-size drill bits, prevent the drill bits from toppling, improve operation safety, and facilitate single-person operation. Image acquisition devices are used to acquire internal image data of the drill bits and identify the mud cake condition of the water hole nozzles. Meanwhile, the heating module and the air blowing module are combined to quickly dry the mud cake and rock debris, eliminate the adhesion force on the surface of the drill bits, and significantly reduce the peeling difficulty.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of drill bit production, and particularly relates to a diamond drill bit water hole dismounting matching device and a use method thereof. BACKGROUND

[0002] The drill bit water hole is one of important components of the drill bit, has a cleaning effect on the drill bit and the well bottom, plays a role of hydraulic rock breaking through the installation of a nozzle in the drill bit water hole, and can generate balanced pressure distribution on the rock surface, and the nozzle of the conventional drill bit is in a cylindrical type.

[0003] The drill bit is often accompanied by a mud cake phenomenon when it is taken out of the well, so that the inside of the water hole nozzle is blocked by a large number of dense cuttings, and it is necessary to clean it first, and the cleaning process is very inconvenient and requires the use of other matching tools. The early application of Chinese invention patent CN112659047B, a kind of PDC drill bit matching tool, is used to solve the problem. However, feedback from the field use shows that the matching tool has the following problems: first, the operation needs to invert the drill bit on the ground, and for large-size drill bits, single-person operation is extremely difficult, and forced single-person operation is easy to cause the drill bit to fall and hit the worker's foot; secondly, for the mud cake drill bit just taken out of the well, due to the irregular and uneven structure near the water hole nozzle, a large range of mud cake cutting groups are often formed, and the existing method cannot effectively remove such stubborn blockages. SUMMARY

[0004] The present application aims to provide a diamond drill bit water hole dismounting matching device and a use method thereof, which can provide a stable support platform for large mass and large size diamond drill bits, effectively prevent the drill bit from tilting or falling during dismounting of the water hole nozzle, significantly improve the operation safety, and facilitate single-person operation; at the same time, an image acquisition device is arranged to directly acquire image data in the drill bit, and then analyze the mud cake condition of the water hole nozzle; by combining the heating module and the air blowing module, the mud cake cuttings are quickly dried, the liquid phase substances in the cuttings are evaporated or volatilized to eliminate the close adhesion of the mud cake cuttings to the surface of the drill bit due to the fluid tension, and then the subsequent peeling difficulty and manual cleaning intensity are greatly reduced.

[0005] The technical scheme adopted by the present application is as follows: a diamond drill bit water hole dismounting matching device, comprising a bottom plate and a back plate, the bottom plate and the back plate are perpendicular and connected, the bottom plate is provided with a turntable, and the turntable is fixed with a positioning column; the bottom plate is vertically provided with two limiting plates, the limiting plates are respectively located on both sides of the turntable, the limiting plates abut against the back plate and are perpendicular to the back plate; the limiting plates are provided with a plurality of through holes, two pull rods are arranged between the limiting plates, the pull rods respectively pass through the through holes of the limiting plates on both sides, and the pull rods are respectively located on both sides of the drill bit to limit the movement of the drill bit.

[0006] Alternatively, the bottom plate is provided with a first track, the first track has two and is perpendicular to the back plate, the first track is respectively arranged on both sides of the rotating disc to support the sliding of the rotating disc.

[0007] Alternatively, the bottom plate is provided with a fourth track, the fourth track has at least two and is parallel to the back plate position, the fourth track is used for the sliding of the limiting plate.

[0008] Alternatively, the pull rod is provided with a thread, and the pull rod is connected with a nut at both ends, and the nut is used to limit the position of the limiting plate.

[0009] Alternatively, a motor for driving the rotating disc to rotate is arranged below the rotating disc, the bottom plate is provided with a second track for the sliding of the motor, and the second track is perpendicular to the back plate.

[0010] Alternatively, the top end of the positioning column is provided with an image acquisition device and a plurality of illumination light sources.

[0011] Alternatively, the image acquisition device is connected with a processor, and the processor is connected with a display, and the display is used to display the identification result of the processor.

[0012] Alternatively, the back plate is provided with a heating device near the drill bit.

[0013] Alternatively, the back plate is provided with a third track above the limiting plate, the extension direction of the third track is perpendicular to the limiting plate, and the third track is slidably provided with a blowing device.

[0014] A use method of a diamond drill bit water eye dismounting matching device, comprising the following steps:

[0015] S1, remove the diamond drill bit after well, invert the joint of the diamond drill bit downward on the rotating disc, and insert the positioning column into the interior of the diamond drill bit;

[0016] S2, open the limiting plates on both sides, move the rotating disc to the abutment of the diamond drill bit and the back plate, inwardly close the two limiting plates, and until the two limiting plates respectively abut against the diamond drill bit;

[0017] S3, according to the drill bit specification, select the through hole corresponding to the height of the connection between the drill bit body and the joint, install the pull rod to lock the limiting plate, and make the two pull rods respectively located on both sides of the diamond drill bit;

[0018] S4, identify the position of the mud-packed water eye through the image acquisition device, and start the motor to rotate the position to abut against the back plate;

[0019] S5, start the heating device and the blowing device to dry the area where the mud-packed water eye is located.

[0020] S6, manual disassembly of the water eye.

[0021] To sum up, due to the adoption of the technical scheme, the present application has the following advantages:

[0022] 1. The device can provide a stable support platform for large mass and large size diamond drill bits, effectively prevent the drill bit from tilting or toppling when disassembling the water eye nozzle, significantly improve the operation safety, and facilitate single-person operation.

[0023] 2. The device can directly obtain image data inside the drill bit through the image acquisition device, and intelligently analyze based on image recognition technology, output the results of the number of water eye nozzle blockages, the extension of the mud cake into the water eye, and the distribution form, etc.

[0024] 3. The device combines a heating module and a blowing module: the heating device quickly dries the mud cake and rock debris, evaporates or volatilizes the liquid phase in the rock debris to eliminate the close fit of the mud cake and rock debris with the drill bit surface due to fluid tension, thereby greatly reducing the subsequent peeling difficulty and manual cleaning intensity. BRIEF DESCRIPTION OF DRAWINGS

[0025] The present application will be described by way of example and with reference to the accompanying drawings, in which:

[0026] Figure 1 is a structural schematic diagram of the present application;

[0027] In the figure, 1 is a bottom plate, 2 is a back plate, 3 is a turntable, 4 is a positioning column, 5 is a limiting plate, 6 is a through hole, 7 is a pull rod, 8 is a first track, 9 is an image acquisition device, 10 is an illumination light source, 11 is a second track, 12 is a display, 13 is a nut, 14 is a heating device, 15 is a third track, 16 is a blowing device, and 17 is a fourth track. DETAILED DESCRIPTION

[0028] The present application will be described in detail below with reference to the accompanying drawings.

[0029] All features disclosed in this specification, and / or all elements of the methods disclosed, can be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.

[0030] Any feature in the description that is not claimed, can be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.

[0031] As Figure 1 shown, a diamond drill bit water eye dismounting matched device, including bottom plate 1 and back plate 2, the bottom plate 1 and the back plate 2 are perpendicular and joint, bottom plate 1 and back plate 2 constitute L type basic frame, form rigid support, provide stable work platform for drill bit dismounting operation, back plate 2 can be limited to drill bit to the side simultaneously, can play the role of limiting to drill bit;The bottom plate 1 is provided with a turntable 3, and the turntable 3 is used as a core bearing component, which can not only support the weight of the drill bit, but also realize the azimuth adjustment of the drill bit, ensure that the best force angle is obtained during dismounting, and the dismounting efficiency can be improved;The positioning column 4 is fixed on the turntable 3, the positioning column 4 can be deeply positioned in the drill bit, effectively prevent the drill bit from tilting or displacement during operation;The bottom plate 1 is provided with two limit plates 5 vertically, the limit plates 5 are located on the both sides of the turntable 3 respectively, the limit plates 5 abut against the back plate 2 and are perpendicular to the back plate 2, and the limit plates 5 are used for clamping and fixing the drill bit body;The limit plate 5 is provided with a plurality of through holes 6, and the through hole 6 provides a plurality of adjustment hole positions for accommodating the pull rod 7, which can be adapted to different specifications of drill bits;Two pull rods 7 are arranged between the limit plates 5, the pull rod 7 penetrates the through hole 6 of the limit plate 5 on the both sides respectively, and the pull rod 7 is located on the both sides of the drill bit to form the movement limit of the drill bit, so that the mechanical constraint is formed at the key connection between the drill bit body and the joint, and the sliding of the drill bit along the first track 8 can be limited when the drill bit is dismounted.

[0032] The device adopts multiple limiting design, supports by internal positioning column 4, limiting effect of side back plate 2 and limit plate 5 and reliable constraint of middle pull rod 7, provides stable support platform for large mass and large size diamond drill bit, effectively prevents the drill bit from tilting or dumping when dismounting water eye nozzle, significantly improves the operation safety, and is convenient for single person operation;Solve the technical problems of easy dumping of drill bit and inconvenient operation in traditional dismounting process.

[0033] In an optional embodiment, the bottom plate 1 is provided with a first track 8, which has two tracks and is perpendicular to the back plate 2, and the first track 8 is arranged on both sides of the rotating disc 3 to support the sliding of the rotating disc 3. The first track 8 has the following functions: first, it has a guiding function, providing a precise linear movement track for the rotating disc 3, ensuring that the rotating disc 3 remains stable during sliding; second, it has an operation optimization function, allowing the operator to slide the rotating disc 3 along the first track 8 to the area outside the limiting plate 5 for drill bit loading, avoiding interference with the limiting plate 5 when the drill bit is installed upside down, and improving the operation safety; and third, it has a high adaptation function, which can drive the positioning column 4 and the loaded drill bit to translate synchronously when the rotating disc 3 moves along the track, ensuring that drill bits of different diameters can maintain stable contact with the back plate 2, so that the back plate 2 can effectively constrain the side surface of drill bits of different sizes.

[0034] In an optional embodiment, the bottom plate 1 is provided with a fourth track 17, which has at least two tracks and is parallel to the back plate 2, and the fourth track 17 is used for the sliding of the limiting plate 5. The fourth track 17 is the core guiding mechanism of the limiting plate 5, and adopts a double-track parallel layout design to provide a high-precision linear movement track for the limiting plate 5. The limiting plate 5 can be expanded / contracted through the fourth track 17, thereby adapting to drill bits of different diameters.

[0035] In an optional embodiment, the pull rod 7 is provided with a thread, and the pull rod 7 is connected with a nut 13 at both ends, and the nut 13 is used to define the position of the limiting plate 5. The pull rod 7 adopts a precisely machined thread structure, cooperates with a high-strength locking nut 13 to form a reliable mechanical restraint system, and significantly improves the adaptation efficiency of the equipment to drill bits of different specifications. The pull rod 7 adopts a thread-nut design at both ends, which ensures the adjustment accuracy and stability during the disassembly of the drill bit.

[0036] In an optional embodiment, a motor is arranged below the rotating disc 3 to drive the rotating disc 3 to rotate, and the motor drives the rotating disc 3 to rotate to realize controllable rotation of the drill bit. The motor can drive the rotating disc 3 to rotate at a constant speed or rotate the area where the water eye wrapped in mud to face the heating device 14. The bottom plate 1 is provided with a second track 11 for sliding of the motor, and the second track 11 is perpendicular to the back plate 2. The arrangement of the second track 11 can ensure that the motor can slide synchronously with the rotating disc 3, avoiding interference of the motor during rotation or sliding. Further, the motor uses a servo motor, which can accurately adjust the speed and direction, so that the operator can adjust the drill bit to the optimal working angle according to the actual needs. The servo motor is a commonly used device in the art and belongs to the prior art. Its specific structure and working mode will not be described in detail in this specification.

[0037] An optional embodiment, the top end of the positioning column 4 is provided with an image acquisition device 9 and several illumination light sources 10. Since the positioning column 4 is inserted into the joint inside the drill bit, the image acquisition device 9 provided at the top end of the positioning column 4 can directly acquire image data inside the drill bit, and then transmit the image data to the processor, which can analyze the inside of the drill bit based on image recognition technology to obtain the results of the number of water jet nozzle blockages, whether the mud cake extends into the water eye, the shape distribution of the mud cake extending into the water eye, and the like. Further, it not only assists workers in the field to clean and disassemble the water jet nozzle, but also collects on-site data for the improvement and optimization of the drill bit structure, breaking through the "blind operation" limitation of traditional disassembly operations, and significantly improving the operation safety and processing efficiency under complex working conditions. The illumination light source 10 can provide a uniform and stable light environment for image acquisition, which is convenient for knowing the shape distribution of the mud cake inside the water eye.

[0038] An optional embodiment, the image acquisition device 9 is connected with a processor, which can perform feature recognition on the acquired image through the built-in image recognition software to identify the number of water eyes blocked by mud cake; the processor is connected with a display 12, which is used to display the recognition result of the processor, so that the worker can quickly judge the number of water eyes blocked by mud cake. Further, the processor can use a computer or the like for processing the photographed image based on image recognition technology. The basis for judging whether the water jet nozzle has mud cake is that the water eye without mud cake is in communication with the outside world and thus transmits light obviously; when judging whether the mud cake extends into the water eye and the shape distribution of the mud cake extending into the water eye, the illumination light source 10 can be turned on, and the image acquisition device 9 acquires the image inside the drill bit and transmits it to the local storage for temporary storage.

[0039] An optional embodiment, the back plate 2 is provided with a heating device 14 near the drill bit. For the drill bit just out of the well which is blocked by mud cake, due to the irregular shape of the structure near the water jet nozzle, the mud cake rock debris with a large wrapping amount covering a large area around the water eye is still difficult to clean. The application sets a heating device 14 on the surface of the back plate 2, which quickly dries the mud cake rock debris, evaporates / evaporates the liquid phase substances (such as water and oil) in the rock debris, and removes the close adhesion of the mud cake rock debris to the surface of the drill bit due to fluid tension, thereby facilitating the reduction of the difficulty of peeling off the mud cake rock debris on the drill bit and reducing the labor consumption. In addition, the heating device 14 works cooperatively with the rotating disc 3, which can adjust the heating direction according to the mud cake distribution area positioned by the image recognition system, and perform drying treatment on mud cake rock debris in different directions to achieve the optimal balance of energy consumption and efficiency.

[0040] An optional embodiment, the back plate 2 is provided with a third track 15 above the limiting plate 5, the extending direction of the third track 15 is perpendicular to the limiting plate 5, and the third track 15 is slidingly provided with a blowing device 16. By blowing air to the drill bit through the blowing device 16, the air flow on the surface of the mud ball drill bit is accelerated, the air drying is more quickly realized, and the drying efficiency is improved. The third track 15 is arranged to facilitate moving the blowing device 16 away after drying the mud ball rock debris, thereby avoiding the blowing device 16 affecting the disassembly action of the drill bit water eye nozzle.

[0041] Through the cooperation of the heating device 14 and the blowing device 16, an efficient mud ball treatment system is formed. The heating device 14 provides a stable heat source to evaporate / evaporate the liquid phase substances (such as water, oil) in the rock debris; the blowing device 16 accelerates the air drying of the rock debris through directional airflow. The two work alternately / simultaneously, which not only avoids continuous high temperature damage to the drill bit, but also realizes all-round drying.

[0042] A use method of a diamond bit water eye dismounting matching device, comprising the following steps:

[0043] S1, the joint of the diamond bit is downward and inverted on the turntable 3, and the positioning column 4 is inserted into the inside of the diamond bit;

[0044] S2, the limiting plates 5 on both sides are opened, the turntable 3 is moved to abut against the diamond bit and the back plate 2, and the two limiting plates 5 are inwardly closed until the two limiting plates 5 respectively abut against the diamond bit;

[0045] S3, according to the drill bit specification, the through hole 6 corresponding to the height of the connection between the drill bit body and the joint is selected, the pull rod 7 is installed to lock the limiting plate 5, and the two pull rods 7 are respectively located on both sides of the diamond bit;

[0046] S4, the position of the water eye covered by the mud ball is identified through the image acquisition device 9, and the motor is started to rotate the position to abut against the back plate 2;

[0047] S5, the heating device 14 and the blowing device 16 are started to dry the area where the water eye covered by the mud ball is located;

[0048] S6, the water eye is manually dismounted. That is, the operator manually rotates and screws the drill bit body to dismount and separate it from the joint.

[0049] Further, in step S4, the area where the water eye wrapped in mud is located can be determined by the following method: first, the model of the commonly used diamond drill bit and the number and layout of the water eyes matched therewith are preset; then the user inputs the model of the drill bit to the processor in advance, and the processor reads the number and layout of the water eyes corresponding to the model; then the processor performs feature matching on the number and position of the water eyes in the image obtained by the image acquisition device 9 to obtain the area where the water eye wrapped in mud is located; finally, the processor automatically controls the motor output, and the motor rotates the water eye wrapped in mud to be close to the heating device 14:

[0050] If the area where the water eye wrapped in mud is located has only one continuous place, and the central angle corresponding to the area is less than or equal to 60°, the motor is controlled to rotate the area where the water eye wrapped in mud is located to face the heating device 14;

[0051] If the area where the water eye wrapped in mud is located has only one continuous place, and the central angle corresponding to the area is greater than 60°, the motor controls the rotating disc 3 to rotate back and forth, so that the area where the water eye wrapped in mud is located rotates back and forth in the direction of the heating device 14;

[0052] If the area where the water eye wrapped in mud is located has at least two discontinuous places, the motor controls the rotating disc 3 to move intermittently, so that different water eyes wrapped in mud alternately face the heating device 14 intermittently.

[0053] In summary, due to the adoption of the above technical scheme, the present application has the following advantages:

[0054] 1. The diamond drill bit water eye dismounting device and the use method thereof can provide a stable support platform for large mass and large size diamond drill bits, effectively prevent the drill bit from tilting or falling during dismounting of the water eye nozzle, significantly improve the operation safety, and facilitate single-person operation; meanwhile, the rotating disc is provided, which facilitates flexible adjustment of the drill bit to the optimal operating position during single-person operation, optimizes the force application angle, and improves the dismounting efficiency.

[0055] 2. The diamond drill bit water eye dismounting device and the use method thereof can directly obtain image data inside the drill bit through the image acquisition device, and intelligently analyze based on image recognition technology to output results such as the number of blocked water eye nozzles, the extension of the mud pack to the water eye, and the distribution form, thereby not only assisting the on-site personnel to efficiently perform water eye cleaning and dismounting operation, but also being beneficial to collecting on-site data for improvement and optimization of the drill bit structure.

[0056] 3. The diamond drill bit water eye dismounting and matching device and the use method thereof, the device combines the heating module and the air blowing module: the mud ball rock debris is quickly dried by the heating device, liquid phase substances in the rock debris are evaporated or volatilized to eliminate the close adhesion of the mud ball rock debris to the surface of the drill bit due to the fluid tension, and then the subsequent peeling difficulty and manual cleaning intensity are greatly reduced; the air blowing device blows air to the drill bit, accelerates the air flow on the surface of the mud ball drill bit, and improves the drying efficiency. Meanwhile, the turntable of the device can flexibly adjust the drill bit direction to realize the directional drying treatment of the mud ball rock debris in different directions.

[0057] The present application is not limited to the foregoing specific embodiments. The present application extends to any novel one, or any new combination, of the characteristics disclosed in this specification, as well as to any novel method or process disclosed in any step, or any new combination.

[0058] In the embodiments of the present application, unless specifically defined and limited otherwise, the terms "connected", "fixed", and the like should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection, and can also be communication; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

Claims

1. A device for disassembling and reassembling the water inlet of a diamond drill bit, characterized in that: The device comprises a bottom plate (1) and a back plate (2), the bottom plate (1) and the back plate (2) are perpendicular and connected, the bottom plate (1) is provided with a rotating disc (3), the rotating disc (3) is fixed with a positioning column (4) which can be inserted into the inside of a diamond drill bit; the bottom plate (1) is vertically provided with two limiting plates (5), the limiting plates (5) are respectively located on both sides of the rotating disc (3), the limiting plates (5) abut against and are perpendicular to the back plate (2); the limiting plates (5) are provided with a plurality of through holes (6), the limiting plates (5) are provided with two pull rods (7) between them, the pull rods (7) respectively pass through the through holes (6) of the limiting plates (5) on both sides, the pull rods (7) are respectively located on both sides of the drill bit to form movement limiting of the drill bit; the back plate (2) is provided with a heating device (14) near the drill bit; the back plate (2) is provided with a third track (15) above the limiting plates (5), the extending direction of the third track (15) is perpendicular to the limiting plates (5), the third track (15) is slidably provided with a blowing device (16); The positioning column (4) is provided with an image acquisition device (9) and a plurality of illumination light sources (10) at the top end; the image acquisition device (9) is connected with a processor, the processor is connected with a display (12), and the display (12) is used for displaying the recognition result of the processor; The processor is used for identifying the number of water eyes covered with mud; The use method of the diamond drill bit water eye dismounting matching device comprises the following steps: S1, the joint of the diamond drill bit is removed after being taken out of the well, the diamond drill bit is inverted on the rotating disc (3) with the joint downward, and the positioning column (4) is inserted into the inside of the diamond drill bit; S2, the limiting plates (5) on both sides are opened, the rotating disc (3) is moved to abut against the back plate (2), the two limiting plates (5) are inwardly closed, and the two limiting plates (5) respectively abut against the diamond drill bit; S3, according to the drill bit specification, the through hole (6) corresponding to the height of the connection between the drill bit body and the joint is selected, the pull rod (7) is installed to lock the limiting plate (5), and the two pull rods (7) are respectively located on both sides of the diamond drill bit; S4, the position of the water eye covered with mud is recognized through the image acquisition device (9), the motor is started to rotate the position to abut against the back plate (2); in step S4, the area where the water eye covered with mud is located can be judged by the following method: first, the model of the commonly used diamond drill bit and the number and layout mode of the matching water eye are preset; then, the user inputs the model of the drill bit to the processor in advance, the processor reads the number and layout mode of the water eye corresponding to the model; then, the processor performs feature matching on the number and position of the water eye in the image obtained by the image acquisition device to obtain the area where the water eye covered with mud is located; finally, the processor automatically controls the motor output, and the motor rotates the water eye covered with mud to be close to the heating device: If the area where the water eye covered with mud is located has only one continuous place, and the corresponding central angle of the area is less than or equal to 60°, the motor is started to rotate the area where the water eye covered with mud is located to face the heating device; If the area where the mud-covered water eye is located has and only has a continuous place, and the area corresponds to a central angle greater than 60°, the motor control disc is reciprocated to make the area where the mud-covered water eye is located reciprocate in the direction of the heating device; If the area where the mud-covered water eye is located has at least two discontinuous places, the motor control disc is intermittently moved to make different mud-covered water eyes alternately move towards the heating device intermittently; S5, start the heating device (14) and the air blowing device (16), and dry the area where the mud-covered water eye is located; S6, manually disassemble the water eye.

2. The diamond bit eye disassembly kit of claim 1, wherein: The bottom plate (1) is provided with a first track (8), the first track (8) has two and is perpendicular to the back plate (2), and the first track (8) is arranged on both sides of the rotating disc (3) to support the sliding of the rotating disc (3).

3. The diamond bit eye disassembly kit of claim 1, wherein: The bottom plate (1) is provided with a fourth track (17), the fourth track (17) has at least two and is parallel to the position of the back plate (2), and the fourth track (17) is used for the sliding of the limiting plate (5).

4. The diamond bit eye disassembly kit of claim 3, wherein: The pull rod (7) is provided with a screw thread, both ends of the pull rod (7) are connected with a nut (13), and the nut (13) is used to limit the position of the limiting plate (5).

5. The diamond bit eye disassembly kit of claim 1, wherein: The rotating disc (3) is provided below with a motor for driving the rotating disc (3) to rotate, and the bottom plate (1) is provided with a second track (11) for the sliding of the motor, and the second track (11) is perpendicular to the back plate (2).

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