Drilling device

Abstract

The invention provides a drilling device. Comprising a drill bit part and a driving part, and the driving end of the driving part is movably arranged; the torque sensor is arranged between the drill bit part and the driving part; the detection end of the torque sensor is connected with a drill bit of the drill bit part and used for detecting torque of the drill bit. Wherein the torque sensor is provided with a connecting part, and the connecting part is movably arranged so as to move to a connecting position which abuts against or is connected with the drill bit part or a disconnecting position which is separated from the drill bit part; when the torque sensor is in the connecting position, the driving end is in driving connection with the drill bit part through the torque sensor; when the torque sensor is in the disconnected position, the driving end is disconnected from the drill bit part. Through the technical scheme provided by the invention, the technical problem that a cable buffer layer structure is easily damaged when a drilling device in the prior art is used for drilling can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of drilling devices, and in particular to a drilling device. Background Art

[0002] At present, in the fault detection of high-voltage cables, drilling gas analysis is one of the commonly used and effective methods. By drilling holes at specific locations outside the cable, the characteristic gases generated inside are collected to analyze the health status of the cable.

[0003] However, the cable drilling devices in the prior art often have difficulty in accurately controlling the drilling depth during operation. Traditional drilling devices are usually operated manually, and it is difficult for the operator to accurately estimate the thickness of the internal structure of the cable, especially after drilling through the aluminum sheath of the cable. If the drilling force continues to be applied, it is very easy to damage the buffer layer or even destroy the internal insulation material, resulting in cable performance degradation or failure. In addition, during the drilling process, the existing device does not have an effective feedback mechanism to inform the operator whether the drill bit has reached the predetermined position. In actual operation, operators often rely on experience to make judgments, which increases the risk of misoperation, especially when faced with different cable models and structures, the uncertainty of such judgments is greater. In order to limit the drilling depth, some drilling devices use a limiter, but the limiter needs to be customized according to the specific size and structure of the cable, which not only increases the manufacturing cost of the equipment, but also limits its application flexibility on different cable models. Summary of the invention

[0004] The main purpose of the present invention is to provide a drilling device to solve the technical problem that the drilling device in the prior art is easy to damage the cable buffer layer structure when drilling.

[0005] In order to achieve the above object, the present invention provides a drilling device, comprising:

[0006] Drill head;

[0007] A driving part, wherein a driving end of the driving part is movably arranged;

[0008] A torque sensor is arranged between the drill head and the driving head; a detection end of the torque sensor is connected to the drill bit of the drill head and is used to detect the torque of the drill bit;

[0009] Among them, a connecting part is provided on the torque sensor, and the connecting part can be movably arranged to move to a connecting position abutting or connected with the drill head or a disconnecting position spaced from the drill head; when the torque sensor is in the connecting position, the driving end is connected to the drill head through the torque sensor; when the torque sensor is in the disconnecting position, the driving end is disconnected from the drill head.

[0010] Furthermore, the drilling device also includes a controller, the controller has a signal input end and a signal output end; the torque sensor is connected to the signal input end; the controller includes a signal processing unit and a control unit connected to each other, the signal processing unit is connected to the signal input end to obtain the detection signal of the torque sensor, and the control unit is connected to the signal output end to send a control signal to the signal output end; wherein:

[0011] The driving part is connected to the signal output end to control the driving part to be in a starting state to make the driving end active or a stopping state to make the driving end stationary according to the control signal; and / or,

[0012] The connecting part is connected to the signal output terminal so as to control the connecting part to be in a connecting position or a disconnecting position according to a control signal.

[0013] Further, a positioning groove is provided on a side of the drill head close to the torque sensor, and the positioning groove is adaptively provided with an end of the connecting portion close to the drill head; and / or,

[0014] One end of the connecting portion close to the drill head is a spherical structure; and / or,

[0015] The drilling device also includes a guide portion, which forms a guide groove extending along the extension direction from the torque sensor to the drill head, and at least a part of the connecting portion is located in the guide groove and is adapted to be guided by the guide groove.

[0016] Further, the drilling device further comprises a guide portion located at one side of the connecting portion; the connecting portion comprises a first connecting section and a second connecting section located at a side of the first connecting section away from the drill head, the outer edge of the first connecting section protrudes from the outer edge of the second connecting section to form a step surface between the first connecting section and the second connecting section, the step surface being used to abut against at least part of the guide portion for limiting position; and / or,

[0017] The drilling device also includes an elastic part, one end of which is fixed on the torque sensor and the other end is connected to the connecting part; the elastic part is extended along the extending direction from the torque sensor to the drill head.

[0018] Further, the drill head comprises:

[0019] A main body and a first rotating member, the drill bit is arranged on the first rotating member; a first clamping portion is arranged on the main body, and a second clamping portion is arranged on the first rotating member;

[0020] The first rotating member can be movably sleeved on the main body to move to an installation position where the first clamping portion and the second clamping portion are clamped together or a disassembly position where the first clamping portion and the second clamping portion are misaligned.

[0021] Furthermore, the drill head also includes:

[0022] A locking member is arranged on the main body and located on one side of the first rotating member, and the outer edge of the locking member protrudes from the outer edge of the main body; a locking groove matching the locking member is arranged on the first rotating member;

[0023] Wherein, when the first rotating member is in the installation position, at least a part of the locking member is located in the locking groove; when the first rotating member is in the disassembly position, the locking member is located outside the locking groove.

[0024] Furthermore, the drill head also includes a second rotating member, which is located on a side of the locking member away from the first rotating member; an arc-shaped groove is provided on a side of the second rotating member close to the first rotating member, and the arc-shaped groove has a convex portion and a concave portion connected to each other;

[0025] The second rotating member is rotatably mounted on the main member to move to a first position where the recess and the locking member are arranged opposite to each other or to a second position where the protrusion and the locking member abut against each other, the first position corresponding to the installation position and the second position corresponding to the removal position; and / or,

[0026] The arc groove is extended along the periphery of the main body, and there are at least two convex parts and concave parts. The convex parts and concave parts are alternately arranged, and the central angles corresponding to adjacent convex parts and concave parts are 90 degrees.

[0027] Further, the rotation direction of the first rotating member is opposite to the rotation direction of the second rotating member; and / or,

[0028] The drill head also includes a first operating portion, which is disposed on the first rotating member and extends along the peripheral direction of the first rotating member, and an outer edge of the first operating portion protrudes from an outer edge of the first rotating member; and / or,

[0029] The drill head also includes a second operating part, which is arranged on the second rotating member and extends along the peripheral direction of the second rotating member, and the outer edge of the second operating part protrudes from the outer edge of the second rotating member.

[0030] Furthermore, a sliding groove is provided on the main body, the sliding groove is extended along the extension direction of the main body, and the locking member is movably arranged in the sliding groove.

[0031] Furthermore, the drilling device also includes:

[0032] A knob member connected to the driving portion and used to control the rotation direction of the driving end; the knob member has at least two operating positions, corresponding to clockwise rotation and counterclockwise rotation of the driving end respectively; and / or,

[0033] The switch and the battery are arranged on the outer shell of the drilling device and protrude from the outer shell. The battery and the driving part are both installed in the outer shell. The battery is connected to the driving part through the power supply circuit. The switch is used to control the on and off of the power supply circuit.

[0034] By applying the technical solution of the present invention, by setting a torque sensor between the drill head and the driving part, the torque change of the drill bit during the drilling process can be monitored in real time. When the drill bit penetrates the aluminum sheath of the cable, the torque on the drill bit will drop sharply to near zero. At this time, the torque sensor can immediately detect this change. Due to the movable setting of the connecting part, it can trigger the connecting part to move from the connection position connected to the driving end to the disconnection position, cut off the driving force of the driving part on the drill bit, thereby avoiding the drill bit from further damaging the internal structure of the cable and accurately controlling the drilling depth. In this way, the instant feedback mechanism of the torque sensor greatly reduces the dependence on the operator's experience and accuracy, and even when drilling on a complex structure such as a high-voltage cable, it can effectively prevent the damage to the internal structure of the cable caused by improper operation. By controlling the drilling depth through the torque sensor, the drilling device does not need to customize the limiter for different cable models and structures, and has good universality. Regardless of how the thickness of the outer sheath and the thickness of the aluminum sheath of the cable change, the torque sensor can accurately determine the moment when the drilling is completed, ensuring that the drilling operation will not damage the buffer layer and other structures inside the cable. Therefore, the technical solution of the present invention can solve the technical problem in the prior art that the drilling device is prone to damage the cable buffer layer structure when drilling. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0036] Figure 1 A schematic structural diagram of a drilling device provided according to an embodiment of the present invention is shown;

[0037] Figure 2 A partial structural schematic diagram of a drill head of a drilling device provided in an embodiment of the present invention is shown;

[0038] Figure 3 A schematic structural diagram showing a partial structure of a drill head portion of a drilling device provided in an embodiment of the present invention in an installation position is shown;

[0039] Figure 4 A schematic structural diagram showing a partial structure of a drill head portion of a drilling device provided in an embodiment of the present invention in a disassembled position is shown;

[0040] Figure 5 A schematic structural diagram of a torque sensor and a connecting part of a drilling device provided according to an embodiment of the present invention is shown;

[0041] Figure 6 A schematic diagram of the operation steps of a drilling device provided according to an embodiment of the present invention is shown.

[0042] The above drawings include the following reference numerals:

[0043] 1. Drill head;

[0044] 11. drill bit; 111. drill bit slot;

[0045] 12. Positioning slot;

[0046] 13. Main body; 131. First clamping portion;

[0047] 14. first rotating member; 141. second clamping portion; 142. locking groove;

[0048] 15. Locking parts;

[0049] 16, second rotating member; 161, arc-shaped groove; 1611, convex part; 1612, concave part;

[0050] 17. A first operating unit;

[0051] 18. Second operating unit;

[0052] 2. Driving unit;

[0053] 3. Torque sensor;

[0054] 31. Connecting portion; 311. First connecting section; 312. Second connecting section; 313. Step surface; 314. Spherical structure;

[0055] 4. guide portion; 41. guide groove;

[0056] 5. Elastic part;

[0057] 6. Knob parts;

[0058] 7. Switch;

[0059] 8. Battery;

[0060] 9. Shell. DETAILED DESCRIPTION

[0061] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0062] like Figures 1 to 6As shown, an embodiment of the present invention provides a drilling device, which includes a drill head 1 and a driving part 2, and the driving end of the driving part 2 is movably arranged. The drilling device also includes a torque sensor 3, which is arranged between the drill head 1 and the driving part 2; the detection end of the torque sensor 3 is connected to the drill bit 11 of the drill head 1 and is used to detect the torque of the drill bit 11. Among them, a connecting part 31 is provided on the torque sensor 3, and the connecting part 31 is movably arranged to move to a connection position abutting or connecting with the drill head 1 or a disconnection position spaced from the drill head 1; when the torque sensor 3 is in the connection position, the driving end is connected to the drill head 1 through the torque sensor 3; when the torque sensor 3 is in the disconnection position, the driving end is disconnected from the drill head 1.

[0063] The drilling device provided by the embodiment of the present invention can monitor the torque change of the drill bit 11 in the drilling process in real time by setting a torque sensor 3 between the drill head 1 and the driving part 2. When the drill bit 11 penetrates the aluminum sheath of the cable, the torque on the drill bit 11 will drop sharply to near zero. At this time, the torque sensor 3 can immediately detect this change. Due to the movable setting of the connecting part 31, the connecting part 31 can be triggered to move from the connection position connected to the driving end to the disconnection position, cutting off the driving force of the driving part 2 on the drill bit 11, thereby preventing the drill bit 11 from further damaging the internal structure of the cable and accurately controlling the drilling depth. In this way, the instant feedback mechanism of the torque sensor 3 greatly reduces the dependence on the operator's experience and accuracy, and even when drilling on a complex structure such as a high-voltage cable, it can effectively prevent the damage to the internal structure of the cable caused by improper operation. By controlling the drilling depth through the torque sensor 3, the drilling device does not need to customize the limiter for different cable models and structures, and has good universality. Regardless of how the thickness of the outer sheath and the aluminum sheath of the cable changes, the torque sensor 3 can accurately determine the moment when the drilling is completed, ensuring that the drilling operation will not damage the buffer layer and other structures inside the cable. Therefore, the drilling device provided in this embodiment can solve the technical problem that the drilling device in the prior art is easy to damage the cable buffer layer structure when drilling.

[0064] Specifically, the torque sensor 3 includes a strain gauge, a torque transmission element, a signal processing circuit, a rotary joint, a power supply and a communication interface. The strain gauge is the core component of the torque sensor, which can convert tiny mechanical deformations into electrical signals. The strain gauge is usually attached to the measuring shaft of the sensor. When the shaft is subjected to torque, the shaft body produces a tiny deformation, and the strain gauge changes accordingly, thereby outputting an electrical signal corresponding to the torque magnitude. The torque transmission element is used to transmit torque information without rotating. For a rotary torque sensor, the torque transmission element may be a torsion bar, a torsion tube, or use wireless transmission technology to maintain information transmission between the non-rotating part and the rotating part of the sensor while avoiding cable entanglement or wear. The signal processing circuit receives the original electrical signal from the strain gauge, amplifies, filters and linearizes it, and finally converts it into a standard signal (such as 4-20mA, 0-5V, etc.) that is easy to read and use. The signal processing circuit may also include functions such as temperature compensation and zero point adjustment to improve measurement accuracy and reliability. The rotary joint is used to connect the rotating part and the non-rotating part of the sensor to ensure that the transmission of signals and power is not affected by rotation. The rotary joint can be implemented by means of slip rings, brushes or wireless transmission. The torque sensor 3 communicates data with an external device (such as a controller, a computer, etc.) through a specific interface. The power supply can be an external power supply or a built-in battery, and the communication interface may include an analog interface, a digital interface (such as RS485, CAN, etc.) or a wireless communication interface.

[0065] Specifically, the diameter of the drill bit 11 is about 3 mm to prevent gas from escaping during the drilling process.

[0066] Specifically, the length of the drill bit 11 should be determined according to the type of the target cable, and should be slightly greater than the thickness of the aluminum sheath and outer sheath of the cable, so as to achieve drilling without damaging the buffer layer structure.

[0067] Specifically, the drilling device also includes a controller, which has a signal input terminal and a signal output terminal; the torque sensor 3 is connected to the signal input terminal; the controller includes a signal processing unit and a control unit connected to each other, the signal processing unit is connected to the signal input terminal to obtain the detection signal of the torque sensor 3, and the control unit is connected to the signal output terminal to send a control signal to the signal output terminal. With such a setting, signal transmission and processing between the torque sensor 3 and the controller are realized. The signal processing unit is responsible for receiving and analyzing the detection signal of the torque sensor 3, and converting the original torque change information into a signal format that is easy to process. The control unit determines what control instruction to send to the structure to be controlled based on the processed signal. This technical solution ensures that the device can respond according to real-time torque changes, thereby improving the degree of automation and control accuracy of the drilling process. The integrated use of the controller closely combines torque detection with action control, avoids the uncertainty of manual intervention, and enhances the overall performance of the device.

[0068] Specifically, the drive unit 2 is connected to the signal output terminal to control the drive unit 2 to be in a start state that makes the drive end active or a stop state that makes the drive end stationary according to the control signal. With such a setting, through the connection with the signal output terminal of the controller, the drive unit 2 can automatically respond to the instructions of the control unit to achieve a rapid transition from the start state to the stop state. When the torque reaches a preset threshold during the drilling process, indicating that the drill bit 11 has penetrated the target structure, the control unit automatically sends a stop signal to the drive unit 2 and cuts off the power supply of the motor, thereby avoiding damage to the internal structure of the cable caused by excessive drilling. This technical solution significantly improves the safety and reliability of drilling operations, reduces the operator's dependence on the perception of drilling depth, and makes drilling operations more standardized and automated.

[0069] Specifically, the connection part 31 is connected to the signal output end to control the connection part 31 to be in the connection position or the disconnection position according to the control signal. With such a setting, when the torque value detected by the torque sensor 3 indicates that the drilling is completed, the control unit immediately sends a command to the connection part 31 to move it from the connection position to the disconnection position, thereby cutting off the mechanical connection between the drive part 2 and the drill head 1. This design not only ensures the control of the drilling depth, but also provides a safe disconnection mechanism to prevent additional damage to the device or cable due to the continued operation of the drive part 2. The intelligent control of the state of the connection part 31 also makes the drilling device more adaptable and versatile between different cables and different drilling requirements.

[0070] Specifically, the driving unit 2 includes a motor body, a driving gear and a motor controller. The motor body is the core power source of the driving unit 2, and its output shaft is connected to the driving gear, which transmits the rotational power of the motor body to the drill bit 11 of the drill head 1 through the driving gear. The motor controller is connected to the signal output end of the controller and can receive and parse the control signal sent by the control unit. When the signal processing unit determines that the torque reaches a preset threshold (the torque is 0), the control unit sends a stop signal to the motor controller. After receiving the stop signal, the motor controller will immediately cut off the power supply of the motor body, so that the motor body stops rotating, further causing the driving gear to stop rotating, and finally causing the drill bit 11 to stop moving forward, thereby achieving precise control of the drilling depth and avoiding damage to the internal structure of the cable.

[0071] Specifically, the connecting part 31 is connected to the signal output end. When the torque sensor 3 detects that the torque at the drill bit 11 is greater than 0, the control signal controls the connecting part 31 to be in the connected position; when the torque sensor 3 detects that the torque at the drill bit 11 is equal to 0, the control signal controls the connecting part 31 to be in the disconnected position.

[0072] Specifically, the torque sensor 3 is used to monitor the torque change at the drill bit 11 during the drilling process. When the drill bit 11 penetrates the outer sheath and aluminum sheath of the cable and reaches the air gap between the buffer layer and the aluminum sheath, the resistance encountered will suddenly decrease, resulting in a significant decrease in the torque value detected by the torque sensor 3. Based on this change, the controller can determine that the drilling has been completed and control the drive unit 2 to stop working, thereby avoiding the possibility of further damage to the internal structure of the cable.

[0073] In this embodiment, a positioning groove 12 is provided on the side of the drill head 1 close to the torque sensor 3, and the positioning groove 12 is matched with the end of the connecting portion 31 close to the drill head 1. Such a structural setting ensures accurate mechanical positioning and stable connection between the drill head 1 and the connecting portion 31. The matching of the positioning groove 12 and the spherical structure 314 ensures the stability of the drilling process.

[0074] Specifically, the end of the connection part 31 close to the drill head 1 is a spherical structure 314. With such a structural setting, the spherical structure 314 serves as the contact point between the connection part 31 and the drill head 1, which can provide a multi-directional contact surface, thereby increasing the flexibility and adaptability of the mechanical connection. During the drilling process, even if there are slight changes in the cable structure, the spherical structure 314 can maintain good contact with the positioning groove 12 through its own fine-tuning, thereby reducing torque loss or unstable connection problems caused by position offset. In addition, the design of the spherical structure also has a self-positioning function, which can help the connection part 31 to automatically align and lock when inserted into the positioning groove 12, further simplifying the installation process of the drill bit.

[0075] Specifically, the spherical structure 314 is a steel ball.

[0076] Specifically, the drilling device further comprises a guide portion 4, which encloses a guide groove 41 extending along the extension direction from the torque sensor 3 to the drill head 1, and at least a portion of the connection portion 31 is located in the guide groove 41 and is guided and adapted to the guide groove 41. With such a structural arrangement, the arrangement of the guide portion 4 and the guide groove 41 provides a stable guide path for the connection portion 31. When the connection portion 31 moves to the connection position, the guide groove 41 ensures that it moves smoothly along a preset straight path, avoids lateral deviation or rotation, and improves the accuracy and reliability of the connection. During the drilling process, the guide groove 41 can also limit the range of movement of the connection portion 31, prevent the position of the connection portion 31 from changing due to external interference or internal stress changes, thereby ensuring stable power transmission between the torque sensor 3 and the drill head 1. When the drilling is completed and the connection portion 31 needs to be moved to the disconnection position, the guide groove 41 also provides accurate guidance, ensures the smooth progress of the disconnection process, and avoids mechanical damage that may occur during the disconnection process.

[0077] Specifically, the drilling device further includes a guide portion 4 located at one side of the connecting portion 31; the connecting portion 31 includes a first connecting segment 311 and a second connecting segment 312 located at a side of the first connecting segment 311 away from the drill head 1, the outer edge of the first connecting segment 311 is protruding from the outer edge of the second connecting segment 312, so as to form a step surface 313 between the first connecting segment 311 and the second connecting segment 312, and the step surface 313 is used to abut against at least part of the guide portion 4. With such a structural setting, the moving distance of the connecting portion 31 is limited by abutting against at least part of the guide portion 4, so as to ensure the high efficiency of the connecting portion 31 when switching positions.

[0078] Specifically, at least a portion of the second connecting section 312 is located in the guide groove 41 and is guided and adapted to the guide groove 41 .

[0079] Specifically, the drilling device further includes an elastic part 5, one end of which is fixed on the torque sensor 3 and the other end is connected to the connecting part 31; the elastic part 5 is extended along the extending direction from the torque sensor 3 to the drill head 1. With such a structural arrangement, the elastic force of the elastic part 5 can cause the end of the connecting part 31 close to the drill head 1 to abut against the positioning groove 12, thereby preventing the end of the connecting part 31 close to the drill head 1 from deviating from the positioning groove 12, thereby preventing the drill head 11 from slightly displacing during drilling, thereby ensuring the quality of drilling.

[0080] Specifically, when the connecting portion 31 is in the connected position, the elastic portion 5 is in a first contracted state, so that the end of the connecting portion 31 close to the drill head 1 is abutted against the positioning groove 12 through the elastic restoring force of the elastic portion 5; when the connecting portion 31 is in the disconnected position, the elastic portion 5 is in a second contracted state under the action of external force to ensure that the end of the connecting portion 31 close to the drill head 1 is detached from the positioning groove 12.

[0081] Specifically, the elastic part 5 is a spring structure.

[0082] Specifically, when the torque sensor 3 senses sufficient torque and front-end stress, that is, when the aluminum sheath is not drilled through, the connecting rod (equivalent to the connecting part 31) will be extended, one end of which is connected to the guide groove 41, and the other end is connected to the internal spring (equivalent to the elastic part 5). Under the stress of the spring, the front-end steel ball (equivalent to the spherical structure 314) of the top tip (equivalent to the first connecting section 311) is fixed in the position of the positioning groove 12. At this time, the spring cannot be deformed, and the front-end drill bit (equivalent to the drill head 1) reaches the maximum displacement, ensuring the stability of the drilling process. When the drilling is completed, the torque sensor 3 senses the disappearance of torque and stress, and the connecting rod is immediately retracted at this time, the top tip leaves the positioning groove 12, the connection between the front-end drill bit and the motor (equivalent to the driving part 2) is cut off, and the drill bit stops working, achieving a self-stop effect.

[0083] In this embodiment, the drill head 1 includes a main body 13 and a first rotating member 14, and the drill bit 11 is arranged on the first rotating member 14; a first clamping portion 131 is arranged on the main body 13, and a second clamping portion 141 is arranged on the first rotating member 14. The first rotating member 14 can be movably sleeved on the main body 13 to move to an installation position where the first clamping portion 131 and the second clamping portion 141 are clamped together or a disassembly position where the first clamping portion 131 and the second clamping portion 141 are misaligned. With such a structural arrangement, the drill bit 11 can be quickly installed and disassembled, and the flexibility and maintenance efficiency of the drilling device are improved. The combination of the main body 13 and the first rotating member 14 realizes stable connection and disconnection between the drill bit 11 and the driving part through the clamping and misalignment of the first clamping portion 131 and the second clamping portion 141. When in the installation position, the first rotating member 14 is integrated with the main member 13 through the clamping portion, ensuring the stable rotation and power transmission of the drill bit 11; when in the disassembly position, the clamping portion of the first rotating member 14 and the main member 13 are misaligned, and the drill bit 11 can be easily removed from the device, which is convenient for replacing worn drill bits or adjusting drilling specifications, greatly improving the adaptability of the device and the convenience of the operator.

[0084] Specifically, a fixing sleeve is disposed on the first rotating member 14, and the fixing sleeve is extended along the periphery of the first rotating member 14 and protrudes from the outer edge of the first rotating member 14. The second clamping portion 141 is disposed on the fixing sleeve.

[0085] Specifically, there are at least two first clamping parts 131 and at least two second clamping parts 141, and at least two first clamping parts 131 are arranged at intervals along the periphery of the main body 13. At least two second clamping parts 141 are arranged at intervals along the periphery of the fixing sleeve. Specifically, there are two second clamping parts 141, and the two second clamping parts 141 are symmetrically arranged along the central axis of the fixing sleeve.

[0086] Specifically, the first clamping portion 131 is a spherical structure, and the second clamping portion 141 is a limiting groove. With such a structural setting, the first clamping portion 131 of the spherical structure can form an adaptively aligned clamping system with the second clamping portion 141 (limiting groove). When installing the drill bit 11, the spherical structure can automatically align and embed into the limiting groove. Even in the case of slight axial or radial offset, accurate alignment and clamping can be achieved through the self-positioning function of the spherical structure, which greatly simplifies the installation process of the drill bit and reduces the difficulty of operation.

[0087] Specifically, the first rotating member 14 is rotatably sleeved on the main member 13. In this way, this rotary disassembly method avoids direct axial or radial force application, reduces wear and damage to the clamping part during the disassembly process, and prolongs the service life of the drilling device. At the same time, this design makes it simple and quick to replace drill bits of different specifications, and improves the flexibility and adaptability of the device.

[0088] Specifically, the drill head 1 further includes a locking member 15, which is arranged on the main body 13 and located on one side of the first rotating member 14, and the outer edge of the locking member 15 protrudes from the outer edge of the main body 13; the first rotating member 14 is provided with a locking groove 142 adapted to the locking member 15. When the first rotating member 14 is in the installation position, at least part of the locking member 15 is located in the locking groove 142; when the first rotating member 14 is in the disassembly position, the locking member 15 is located outside the locking groove 142. With such a structural arrangement, the locking member 15 and the locking groove 142 are used in combination to provide an additional mechanical lock for the installation position of the drill bit 11, thereby ensuring stability and safety during the drilling operation. When the first rotating member 14 is in the installation position, it can be positioned and quickly installed by aligning the locking member 15 with the locking groove 142. At the same time, a mechanical lock can be formed between the locking member 15 and the locking groove 142 to limit the unexpected movement of the first rotating member 14, thereby ensuring precise control during the drilling process and accurate detection of torque. When the drill bit needs to be removed, the locking member 15 is withdrawn from the locking groove 142, so that the first rotating member 14 can be moved to the removal position, making the removal of the drill bit simple and easy, avoiding possible damage during the removal process, and improving the maintenance efficiency of the device.

[0089] Specifically, the locking groove 142 is a U-shaped groove.

[0090] Specifically, the drill head 1 further includes a second rotating member 16, which is located on a side of the locking member 15 away from the first rotating member 14; an arc groove 161 is provided on a side of the second rotating member 16 close to the first rotating member 14, and the arc groove 161 has a convex portion 1611 and a concave portion 1612 connected to each other. With such a structural arrangement, the design of the second rotating member 16 and the arc groove 161 provides convenient operation and intuitive instructions for the installation and removal of the drill bit 11. When the second rotating member 16 rotates, the arc groove 161 thereon guides the locking member 15 to move between the convex portion 1611 and the concave portion 1612, thereby controlling the alignment or misalignment of the locking groove 142 on the first rotating member 14 with the locking member 15, and realizing the locking and release of the drill bit 11. This intuitive operation method reduces the complexity of the operation, allowing the operator to quickly and accurately complete the installation and removal of the drill bit, thereby improving the operation efficiency. At the same time, since the movement of the locking member 15 is precisely controlled by the arc groove 161, possible misoperation or over-operation during operation is avoided, and the reliability and operational safety of the device are further improved.

[0091] Specifically, the second rotating member 16 is rotatably sleeved on the main member 13 to move to a first position where the recess 1612 is arranged opposite to the locking member 15 or a second position where the protrusion 1611 is in contact with the locking member 15. The first position corresponds to the installation position, and the second position corresponds to the removal position. With such a structural arrangement, the locking member 15 can be intuitively and accurately moved to the first position aligned with the recess 1612 by rotating the second rotating member 16. At this time, the locking member 15 can smoothly slide into the locking groove 142 of the first rotating member 14, completing the locking of the drill bit 11 and ensuring a stable connection during drilling operations. On the contrary, when the second rotating member 16 rotates to the second position where the protrusion 1611 abuts against the locking member 15, the locking member 15 is abutted and pushed by the protrusion 1611, so that the first rotating member 14 is pushed and lifted by the locking member 15, so that the first rotating member 14 moves a distance equal to the outer diameter of the locking member 15 to reach a released state, which facilitates the removal of the drill bit 11. This intuitive operation method simplifies the installation and removal process of the drill bit, improves efficiency, and ensures the accuracy and safety of the operation.

[0092] Specifically, the arc groove 161 is extended along the periphery of the main body 13, and there are at least two protrusions 1611 and recesses 1612. The protrusions 1611 and recesses 1612 are alternately arranged, and the central angles corresponding to adjacent protrusions 1611 and recesses 1612 are 90 degrees. In this way, multiple locking and releasing positions are provided, which enhances the flexibility of operation and the durability of the device. The operator can select different recesses 1612 and protrusions 1611 on the second rotating member 16 to match drill bits 11 of different diameters or lengths, so that the device can be suitable for drilling operations of various specifications. In addition, the 90-degree central angle design ensures that each rotation can be clearly positioned to the first position or the second position, avoiding uncertainty during operation and improving the reliability of the device and user experience.

[0093] In this embodiment, the rotation direction of the first rotating member 14 is opposite to that of the second rotating member 16. With such a setting, by setting the first rotating member 14 and the second rotating member 16 to rotate in opposite directions, this design cleverly utilizes the relative movement of the two rotating members, realizes the rapid locking and release of the drill bit 11, and also avoids confusion and misoperation during operation. When the first rotating member 14 rotates in one direction to lock the drill bit, the second rotating member 16 rotates in the opposite direction to ensure that the locking member 15 correctly enters the locking groove 142. On the contrary, when disassembling the drill bit, the reverse rotation of the two rotating members ensures that the first clamping portion 131 and the second clamping portion 141 are misaligned for easy disassembly. This design not only simplifies the operation, but also improves the stability and safety of the entire device through the synergistic effect of reverse rotation. At the same time, the reverse rotation design is also convenient for the operator to remember and execute, reduces the complexity of the operation, and improves the user-friendliness of the device.

[0094] Specifically, the drill head 1 also includes a first operating portion 17, which is arranged on the first rotating member 14 and extends along the peripheral direction of the first rotating member 14, and the outer edge of the first operating portion 17 protrudes from the outer edge of the first rotating member 14. In this way, the setting of the first operating portion 17 provides a direct operating interface for the installation and disassembly of the drill bit 11, which is convenient for the operator to control the movement of the first rotating member 14 by manual rotation. The protruding design of the outer edge of the first operating portion 17 increases the contact area between the operator and the first rotating member 14, provides a better grip and transmission of operating force, and makes the locking and releasing actions of the drill bit more convenient and stable. In addition, the extension of the first operating portion 17 along the peripheral direction ensures that the operator can operate from different angles, improves the flexibility of operation, and greatly facilitates the operation in a working environment with limited space.

[0095] Specifically, the drill head 1 further includes a second operating portion 18, which is disposed on the second rotating member 16 and extends along the peripheral direction of the second rotating member 16, and the outer edge of the second operating portion 18 protrudes from the outer edge of the second rotating member 16. In this way, the second operating portion 18 also protrudes from the outer edge of the second rotating member 16, which facilitates the operator to apply a rotational force to control the rotation of the second rotating member 16, thereby achieving the locking and release of the drill bit 11. The peripheral extension design of the second operating portion 18 ensures that the operator can operate from multiple angles, enhances the usability of the device in complex environments, and at the same time, the protruding outer edge also provides the operator with a better feel and reduces operational errors.

[0096] Specifically, the first operating portion 17 and the second operating portion 18 are both hexagonal sliding sleeves.

[0097] Specifically, a sliding groove is provided on the main body 13, and the sliding groove is extended along the extension direction of the main body 13, and the locking member 15 is movably provided in the sliding groove. With such a structural setting, the movability of the locking member 15 in the sliding groove enables it to accurately match the locking groove 142 of the first rotating member 14 and the convex portion 1611 and the concave portion 1612 of the second rotating member 16, thereby achieving the locking and releasing of the drill bit 11, ensuring the safety and efficiency of the drilling operation, and at the same time, this design also helps to improve the durability of the locking member 15, reducing component wear and maintenance costs.

[0098] Specifically, the locking member 15 is a locking rod.

[0099] In this embodiment, the drilling device further includes a knob 6, which is connected to the driving part 2 and is used to control the rotation direction of the driving end; the knob 6 has at least two operating positions, corresponding to the clockwise rotation and counterclockwise rotation of the driving end. In this way, the setting of the knob 6 provides intuitive control of the drill bit rotation direction, enhancing the convenience and accuracy of the operation of the device. Through the at least two operating positions of the knob 6, the operator can quickly and accurately select the desired drill bit rotation direction, clockwise or counterclockwise.

[0100] Specifically, the knob member 6 is connected to the driving part 2 via a gear transmission mechanism, which can convert the rotation direction of the knob member 6 into the rotation direction of the driving end of the driving part 2, ensuring that the driving part 2 can accurately respond to the rotation operation of the knob member 6.

[0101] Specifically, when the drilling device is not in operation, the scale of the knob member 6 is aligned at the center position. When the drill bit 11 needs to be rotated clockwise, it is only necessary to adjust the knob member 6 to move to the corresponding operating position scale, and then press the switch 7 to start drilling.

[0102] Specifically, when drilling, the knob 6 is in an operating position corresponding to clockwise rotation, so that the drill bit 11 rotates clockwise toward the aluminum sheath, which is conducive to drilling into the aluminum sheath and discharging the generated aluminum chips to the outside.

[0103] Specifically, the drilling device further includes a switch 7 and a battery 8. The switch 7 is arranged on a housing 9 of the drilling device and protrudes from the housing 9. The battery 8 and the driving unit 2 are both installed in the housing 9. The battery 8 is connected to the driving unit 2 through a power supply circuit, and the switch 7 is used to control the on and off of the power supply circuit. The switch 7 is connected to the power supply circuit. In this way, the combined use of the switch 7 and the battery 8 realizes the power supply control and power supply of the drilling device, ensuring the portability and autonomous operation capability of the device. The switch 7 protrudes from the housing 9, which is convenient for the operator to quickly start or stop the drilling operation, ensuring the immediacy and safety of the operation. In an emergency or inappropriate situation to continue drilling, the operator can immediately cut off the power supply to avoid further damage or safety risks. The integrated design of the battery 8 frees the drilling device from dependence on the power cord, improves its applicability outdoors or inconvenient power supply, and enhances the flexibility and operating range of the device. At the same time, the battery 8 is connected to the driving unit 2 through the power supply circuit, ensuring the stability and efficiency of power transmission, optimizing the use of electricity, extending the operating time of a single charge, and reducing the operating cost. The protruding arrangement of the switch 7 and the integration of the battery 8 together improve the user-friendliness and functionality of the drilling device.

[0104] Specifically, the battery 8 is detachably disposed in the housing 9 .

[0105] Specifically, the clamping piece on the drill bit 11 is connected and fixed to the main body 13 via the drill bit clamping groove 111 .

[0106] Specifically, the specific steps of the drilling method using the drilling device are as follows: S1. Accurately locate the location of the ablation fault: Use an infrared thermal imager to measure temperature or other temperature measurement methods to lock the abnormal temperature rise area of ​​the cable outer sheath and determine the specific location of the cable section where the ablation fault occurs; the ablation fault area of ​​the long-line cable may appear as strip-shaped heating or sheet-shaped heating. Generally, the temperature difference between the heating area and the normal area is about 0.3-1°C. The peak position near the hot spot (the highest temperature point) is selected as the drilling point. S2. Use a torque self-feedback drilling drill device to carry out cable drilling work.

[0107] Specifically, in the case of drilling holes in a 110KV XLPE (cross-linked polyethylene) cable, a 20cm long cable is cut for automatic stop drilling. The drill bit 11 can penetrate the cable outer sheath and aluminum sheath, and the hole diameter is 3mm, which can meet the requirements of gas extraction. The drill bit 11 extends for about 2mm and will not damage the other structures such as the internal buffer layer of the cable aluminum sheath.

[0108] From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects: the length of the drill bit used in this solution is greater than the length of the outer sheath plus the aluminum sheath, and the excess part is smaller than the distance between the aluminum sheath and the buffer layer, so as to achieve the effect of successfully drilling and taking out air without damaging the internal buffer layer. Relying on torque sensing to control the front end to stop automatically, it is suitable for various cables and has universal applicability. The self-stop effect solves the problem that it is difficult for users to judge the punching force and time. The diameter of the drill bit used is about 3mm, and the gas inside the cable is not easy to escape when taking out air. The rotation speed during the drilling process is not enough to generate sparks, and no residue falls into the cable when drilling through the aluminum sheath.

[0109] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0110] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the application. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0111] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0112] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0113] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0114] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A drilling device, characterized in that: include: Drill head (1); A driving part (2), wherein a driving end of the driving part (2) is movably arranged; A torque sensor (3) is arranged between the drill section (1) and the drive section (2); a detection end of the torque sensor (3) is connected to a drill bit (11) of the drill section (1) and is used to detect the torque of the drill bit (11); The torque sensor (3) is provided with a connecting portion (31), and the connecting portion (31) is movably arranged to move to a connection position abutting or connected with the drill head (1) or a disconnection position spaced from the drill head (1); when the torque sensor (3) is in the connection position, the driving end is connected to the drill head (1) by driving through the torque sensor (3); when the torque sensor (3) is in the disconnection position, the driving end is disconnected from the drill head (1).

2. The drilling device according to claim 1, characterized in that: The drilling device further comprises a controller, the controller having a signal input end and a signal output end; the torque sensor (3) is connected to the signal input end; the controller comprises a signal processing unit and a control unit connected to each other, the signal processing unit is connected to the signal input end to obtain the detection signal of the torque sensor (3), and the control unit is connected to the signal output end to send a control signal to the signal output end; wherein: The driving part (2) is connected to the signal output end so as to control the driving part (2) to be in a start state in which the driving end is active or in a stop state in which the driving end is stationary according to the control signal; and / or, The connecting portion (31) is connected to the signal output end so as to control the connecting portion (31) to be in the connecting position or the disconnecting position according to the control signal.

3. The drilling device according to claim 1, characterized in that: A positioning groove (12) is provided on a side of the drill head (1) close to the torque sensor (3), and the positioning groove (12) is adaptively arranged with an end of the connecting portion (31) close to the drill head (1); and / or, One end of the connecting portion (31) close to the drill head (1) is a spherical structure (314); and / or, The drilling device further comprises a guide portion (4), wherein the guide portion (4) forms a guide groove (41) extending along an extension direction from the torque sensor (3) to the drill head (1), and at least a portion of the connecting portion (31) is located in the guide groove (41) and is adapted to guide the guide groove (41).

4. The drilling device according to claim 1, characterized in that: The drilling device further comprises a guide portion (4) located at one side of the connecting portion (31); the connecting portion (31) comprises a first connecting section (311) and a second connecting section (312) located at a side of the first connecting section (311) away from the drilling head (1), the outer edge of the first connecting section (311) being arranged to protrude from the outer edge of the second connecting section (312) so as to form a step surface (313) between the first connecting section (311) and the second connecting section (312), the step surface (313) being used to abut against at least part of the guiding portion (4) for limiting position; and / or, The drilling device further comprises an elastic part (5), one end of the elastic part (5) being fixed on the torque sensor (3) and the other end being connected to the connecting part (31); the elastic part (5) is extended along the extension direction from the torque sensor (3) to the drill head (1).

5. The drilling device according to claim 1, characterized in that: The drill head (1) comprises: A main body (13) and a first rotating member (14), the drill bit (11) being arranged on the first rotating member (14); a first clamping portion (131) being arranged on the main body (13), and a second clamping portion (141) being arranged on the first rotating member (14); The first rotating member (14) is movably sleeved on the main member (13) to move to an installation position where the first clamping portion (131) and the second clamping portion (141) are clamped together or a disassembly position where the first clamping portion (131) and the second clamping portion (141) are misaligned.

6. The drilling device according to claim 5, characterized in that: The drill head (1) further comprises: A locking member (15) is arranged on the main member (13) and located on one side of the first rotating member (14), and the outer edge of the locking member (15) protrudes from the outer edge of the main member (13); the first rotating member (14) is provided with a locking groove (142) adapted to the locking member (15); Wherein, when the first rotating member (14) is in the installation position, at least a portion of the locking member (15) is located in the locking groove (142); when the first rotating member (14) is in the disassembly position, the locking member (15) is located outside the locking groove (142).

7. The drilling device according to claim 6, characterized in that The drill head (1) further comprises a second rotating member (16), the second rotating member (16) being located on a side of the locking member (15) away from the first rotating member (14); an arc-shaped groove (161) is provided on a side of the second rotating member (16) close to the first rotating member (14), the arc-shaped groove (161) comprising a convex portion (1611) and a concave portion (1612) connected to each other; wherein the second rotating member (16) is rotatably mounted on the main body (13) to move to a first position where the recess (1612) and the locking member (15) are arranged relative to each other or to a second position where the protrusion (1611) and the locking member (15) are in contact with each other, the first position corresponding to the installation position, and the second position corresponding to the removal position; and / or, The arc-shaped groove (161) is extended along the periphery of the main body (13), and there are at least two protrusions (1611) and at least two recesses (1612). The protrusions (1611) and the recesses (1612) are alternately arranged, and the central angles corresponding to adjacent protrusions (1611) and recesses (1612) are 90 degrees.

8. The drilling device according to claim 7, characterized in that The rotation direction of the first rotating member (14) is opposite to the rotation direction of the second rotating member (16); and / or, The drill head (1) further comprises a first operating portion (17), the first operating portion (17) being arranged on the first rotating member (14) and extending along the peripheral direction of the first rotating member (14), the outer edge of the first operating portion (17) protruding from the outer edge of the first rotating member (14); and / or, The drill head (1) further comprises a second operating portion (18), wherein the second operating portion (18) is arranged on the second rotating member (16) and extends along the peripheral direction of the second rotating member (16), and the outer edge of the second operating portion (18) protrudes from the outer edge of the second rotating member (16).

9. The drilling device according to claim 6, characterized in that: The main body (13) is provided with a sliding groove, the sliding groove is extended along the extension direction of the main body (13), and the locking member (15) is movably arranged in the sliding groove.

10. The drilling device according to any one of claims 1 to 9, characterized in that The drilling device also includes: a knob (6), the knob (6) being connected to the driving portion (2) and used for controlling the rotation direction of the driving end; the knob (6) having at least two operating positions, corresponding to clockwise rotation and counterclockwise rotation of the driving end, respectively; and / or, A switch (7) and a battery (8), wherein the switch (7) is arranged on a housing (9) of the drilling device and protrudes from the housing (9), the battery (8) and the driving unit (2) are both installed in the housing (9), the battery (8) is connected to the driving unit (2) via a power supply circuit, and the switch (7) is used to control the on and off of the power supply circuit.

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