A method for maintaining a phase detachable rotary drill bit punching device and the device

Abstract

The application discloses a kind of for maintaining stage detachable rotary drill bit punching equipment and method thereof.Drill bit punching equipment includes base module, protective shell, gun chamber module, rotation module, drill bit, firing module and temporary fixing module;Rotation module is installed on gun chamber module;Several drill bits are installed in rotation module;Firing module is installed inside protective shell;The connection of base module and protective shell, gun chamber module and protective shell, rotation module and gun chamber module is realized by temporary fixing module;By rotating rotation module, to facilitate any drill bit loaded in rotation module can be connected with the power output end of firing module;The firing, rotation and recovery of drill bit are realized by firing module;As can be seen, the application can realize the reserve of multiple aperture drill bits, and different aperture drill bits can be replaced by rotating the disc, and the fatigue cracks with different aperture are drilled to stop cracking.

Description

Technical Field

[0001] This invention relates to the field of machining, and more specifically to a detachable rotary drill bit drilling device and method for maintenance. Background Technology

[0002] Steel box girders are widely used in long-span bridge structures due to their light weight, high structural rigidity, and strong torsional resistance. However, the thin-walled nature of steel box girders makes them susceptible to fatigue failure, leading to fatigue cracks. With rapid economic development, increased traffic volume, and rampant overloading, existing steel bridge decks are exhibiting fatigue cracks of varying types and degrees. If these cracks are not controlled, the service life of bridges will be significantly reduced, threatening driver safety and damaging the surrounding environment. To address these issues, scholars and technicians have proposed different fatigue crack repair solutions. Drilling for crack arrest and steel plate reinforcement are relatively convenient and effective methods for controlling crack propagation, and crack arrest holes have been drilled to control fatigue cracks in multiple bridges. Research on repair methods and actual bridge experiments have revealed that different hole diameters are required for different types of cracks. However, in actual bridge practice, the operating space is sometimes very limited, making it difficult to quickly change the required drill bits, thus reducing maintenance efficiency. Furthermore, the complex internal structure of steel box girders and the presence of confined spaces make it inconvenient to use large equipment, necessitating manual drilling. During summer maintenance, the temperature inside the enclosure can reach over 40℃. To protect the physical and mental health of staff, it is not advisable to work inside the enclosure for extended periods.

[0003] It is evident that how to quickly and accurately drill fatigue cracks, improve work efficiency, and reduce working time in harsh environments has become an urgent problem to be solved. Summary of the Invention

[0004] The purpose of this invention is to provide a detachable rotary drill bit drilling device for maintenance phases. The first technical objective of this device is to provide a variety of drill bit diameter reserves, allowing for the replacement of different diameter drill bits via a rotating disc, enabling drilling to stop fatigue cracks requiring different diameters. The second technical objective is to design the base module in two structural forms—a magnetic base or a motor-driven base—both of which can be detachably connected to the protective shell. This allows for use in working environments where it is inconvenient to run power cords or in confined spaces where large equipment is difficult to operate, thus expanding the device's application range in steel box girder maintenance. It can effectively improve drilling efficiency, reduce working hours in adverse environments, and protect the physical and mental health of workers.

[0005] To achieve the above-mentioned technical objectives, the present invention will adopt the following technical solution:

[0006] A detachable rotary drill bit drilling device for maintenance phases includes: a base module, a protective shell, a chamber module, a rotary module, a drill bit, a firing module, and a temporary fixing module; wherein:

[0007] The rotating module is mounted on the barrel module; the rotating module contains several drill bits.

[0008] The firing module is installed inside the protective housing; the connection between the base module and the protective housing, the barrel module and the protective housing, and the rotating module and the barrel module is achieved through a temporary fixing module;

[0009] By rotating the rotating module, any drill bit mounted in the rotating module can be connected to the power output end of the firing module;

[0010] The firing, rotation, and retrieval of the drill bit are achieved through a firing module;

[0011] The base module can carry a power mechanism; the power output end of the power mechanism is connected to the power input end of the firing module. The power output end of the firing module can drive the drill bit that is facing the barrel module to rotate through the rotation of the firing module.

[0012] Preferably, the base module is a mating base or a base with a motor;

[0013] The mating base includes a circular mounting base, a transmission hole, and a connecting hole a; the mating base is connected to a conventional magnetic drilling device via the circular mounting base; it is connected to the power input end of the firing module via the transmission hole; and it is connected to the protective shell via the connecting hole a.

[0014] The motor base includes a hexagonal output terminal, an anti-slip grip, a control switch, and a connection hole b. The motor base has a built-in motor, and the power input terminal of the firing module is connected to the power output terminal of the motor inside the motor base through the hexagonal output terminal. The motor base is connected to the protective shell through the connection hole b, and the motor base is equipped with an anti-slip grip and a control switch. The control switch is used to start and stop the motor inside the motor base.

[0015] Preferably, the protective housing includes a firing rail hole, a temporary docking structure, a connecting hole c, and a pull block locking hole;

[0016] The protective shell has a temporary docking structure at one end, and the inner cavity of the protective shell has a firing rail hole, while the shell wall of the protective shell has a connection hole c and a pull block locking hole respectively.

[0017] The firing module is disposed in the firing rail hole;

[0018] The protective shell docks with the base module via a temporary docking structure and connects to the chamber module via connection hole c; the state of the firing module is controlled by the cooperation of the pull block locking hole with the pull block contained in the firing module.

[0019] Preferably, the chamber module includes a disc body, a disc rotation shaft, a barrel, a connecting hole d, and a disc rotation hole a;

[0020] The rotating hole a of the wheel is set on the wheel body, the connecting hole d is set on the gun barrel, one end of the rotating shaft of the wheel is connected to the wall of the gun barrel, and the other end passes through the rotating hole a of the wheel.

[0021] The rotating shaft of the wheel is a cylinder with two notches on the side;

[0022] The temporary fixing module includes two pins. The front end shape of the two pins is consistent with the shape of the two notches on the rotating shaft of the wheel, and they can be inserted into the two notches on the rotating shaft of the wheel in a one-to-one correspondence.

[0023] Preferably, the rotating module is cylindrical in shape, and the rotating module is provided with a rotating hole b along the axial direction, and a number of circular holes of the same diameter are evenly distributed around the rotating hole b.

[0024] The rotating module is sleeved on the rotating shaft of the wheel through the rotating hole b of the wheel and is located between the wheel body and the gun barrel;

[0025] The rotating module rotates around the wheel's axis by applying a torsional force.

[0026] Preferably, the firing module includes a driven shaft, a transmission shaft, a pull block, and a return spring; wherein:

[0027] One end of the driven shaft is configured as a hexagonal prism, and the other end is configured as a circular sleeve with a hexagonal hole; the hexagonal prism and the circular sleeve are connected by a cylindrical connecting section; the outer diameter of the cylindrical connecting section is larger than the circumcircle diameter of the hexagonal prism but smaller than the outer diameter of the circular sleeve;

[0028] The drive shaft is a hexagonal prism, the shape of which is consistent with the internal hole of the circular sleeve, and it can slide inside the hole of the circular sleeve.

[0029] The pull block includes a circular ring and two cuboids symmetrically arranged on both sides of the circular ring. The inner diameter of the circular ring matches the outer diameter of the cylindrical connecting section. The two cuboids pass through the two pull block holes provided on the protective shell in a one-to-one correspondence.

[0030] The reset spring is sleeved around the drive shaft, and the inner diameter of the reset spring is the same as that of the circular sleeve, allowing the drive shaft to move freely within the reset spring.

[0031] The power input end of the power transmission mechanism can be connected to the drive shaft, and the two ends of the return spring are respectively in contact with the base module and the circular sleeve;

[0032] The drill bit is fired by rotating the pull block to disengage from the pull block locking hole located in the protective shell. The return spring loses pressure and extends to push the driven shaft. The driven shaft enters the rotating module and pushes the drill bit out to the barrel.

[0033] The rotation of the drill bit is achieved by rotating the drive shaft to drive the driven shaft, which in turn drives the drill bit.

[0034] The drill bit is retrieved by applying an external pulling force to the pull block, compressing the return spring, and then rotating the pull block until it is stuck in the hole.

[0035] Preferably, the basic shape of the drill bit is formed by splicing a front cylinder and a tail cylinder. The tail cylinder has a hexagonal hole inside, and its shape and size are consistent with the hexagonal cylinder. Its material is magnetic and can be quickly fixed to the hexagonal cylinder by magnetic attraction. The outer diameter of the tail cylinder is uniform. The front cylinder is a drilling bit with a different radius, and its length shall not be less than 3 times the thickness of the component.

[0036] Preferably, the connection method between the base module and the protective shell is as follows: first align the connection hole a and the connection hole c, and then insert the temporary fixing module; the connection method between the rotating module and the barrel module is as follows: first align the rotating hole a and the rotating hole b of the wheel, then insert the rotating shaft of the wheel, and then insert the temporary fixing module.

[0037] Preferably, during the firing, rotation, and resetting of the drill bit, the drive shaft is always located in the circular sleeve of the driven shaft.

[0038] Another technical objective of this invention is to provide a method of using a detachable rotary drill bit drilling device for maintenance phases, based on the aforementioned detachable rotary drill bit drilling device for maintenance phases, comprising:

[0039] Step 1: Drill bit selection:

[0040] Before drilling, the diameter of the holes to be drilled is counted, and the appropriate drill bit is selected and placed into the rotating module.

[0041] Step 2, Drill bit firing:

[0042] Rotate the trigger block until it disengages from the trigger block locking hole, then release the trigger block. The return spring extends, driving the driven shaft forward, which in turn pushes the drill bit into the barrel.

[0043] Step 3: Rotate the drill bit:

[0044] When using a base with a motor, press the control switch slowly. After the drill bit rotates steadily, increase the pressure of the control switch to increase the drill bit speed. After the hole is smoothed, slowly release the control switch until the equipment stops rotating. Then, slowly remove the drill bit from the hole and finally check the drilling quality.

[0045] When selecting a base, install the equipment on the magnetic drilling carrier, adjust the parameters of the magnetic drilling carrier to ensure that the drill bit is centered at the point to be drilled, then fix the magnetic drilling carrier, and finally turn on the power switch of the magnetic drilling carrier to start the drilling operation; after the hole is smoothed, turn off the power switch of the magnetic drilling carrier, and when the equipment stops rotating, slowly withdraw the drill bit from the hole, and finally check the drilling quality.

[0046] Step 4: Drill bit recovery:

[0047] Pull the trigger block back to the position of the trigger block locking hole, and rotate the trigger block until it locks into the locking hole. At this point, the end of the driven shaft has left the rotating module. The drill bit's bore diameter is larger than the diameter of the bore at the tail end of the rotating module, so it cannot leave the rotating module with the driven shaft, thus achieving drill bit retrieval.

[0048] Based on the above-mentioned technical objectives, the present invention has the following advantages compared with the prior art:

[0049] 1. This invention creates a system that can store drill bits of different diameters. For drilling operations requiring different diameters, simply rotating the wheel is sufficient to change the drill bit diameter, greatly improving the efficiency of bridge construction.

[0050] 2. This equipment is equipped with both a magnetic base and a motor-driven base, which can be used in working environments where it is inconvenient to run power cords or where it is difficult to use large equipment in narrow spaces, thus expanding the scope of application of the equipment;

[0051] 3. The equipment is detachable, which prevents damage to parts from causing maintenance work to be delayed, and improves the efficiency of use in actual bridge construction. Attached Figure Description

[0052] Figure 1 This is a schematic diagram of the overall structure of the detachable rotary drill bit drilling device for maintenance phase described in this invention;

[0053] Figure 2 This is an exploded view of the detachable rotary drill bit drilling device for maintenance phase described in this invention.

[0054] Figure 3 yes Figure 2 A schematic diagram of the structure of the mating base of the middle base module; in the figure: (a) is a three-dimensional structural schematic diagram of the mating base, (b) is a front view of the mating base; (c) is a left view of the mating base;

[0055] Figure 4 yes Figure 2 A schematic diagram of the structure of the motor base of the middle base module; in the figure: (a) is the front view of the motor base, and (b) is the left view of the motor base;

[0056] Figure 5 yes Figure 2 A schematic diagram of the structure of the protective shell; in the figure: (a) is a three-dimensional structural schematic diagram of the protective shell, and (b) is a three-dimensional structural schematic diagram of the protective shell in another direction;

[0057] Figure 6 yes Figure 2 A three-dimensional structural diagram of the barrel module;

[0058] Figure 7 yes Figure 2 Schematic diagram of the intermediate rotating module;

[0059] Figure 8 yes Figure 2 Schematic diagram of the drill bit structure;

[0060] Figure 9 yes Figure 2 Exploded view of the firing module;

[0061] Figure 10 yes Figure 2 A schematic diagram of the structure of the temporary fixed module.

[0062] In the attached diagram: 1-Base module; 111-Circular mounting bracket; 112-Transmission hole; 113-Connection hole a; 121-Hexagonal output end; 122-Anti-drop hand strap; 123-Control switch; 124-Connection hole b; 2-Protective housing; 21-Firing rail hole; 22-Temporary docking structure; 23-Connection hole c; 24-Pull block locking hole; 3-Bow module; 31-Disc rotating shaft; 32-Barrel; 33- Connecting hole d; 34-Disc rotation hole a; 4-Disc rotation module; 41-Diameter circular hole; 42-Disc rotation hole b; 5-Drill bit; 51-Tail end cylinder; 52-Front end cylinder; 6-Firing module; 61-Driven shaft; 62-Drive shaft; 621-Hexagonal prism; 622-Circular sleeve; 63-Pull block; 64-Reset spring; 7-Temporary fixing module; 71-First pin; 72-Second pin. Detailed Implementation

[0063] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention. Unless otherwise specifically stated, the relative arrangement, expressions, and values ​​of components and steps set forth in these embodiments do not limit the scope of the present invention. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0064] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used here to describe the spatial positional relationship of a device or feature as shown in the figure with other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation besides the orientation of the device as described in the figure. For example, if the device in the figure is inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations).

[0065] like Figure 1 , Figure 2 As shown, the detachable rotary drill bit drilling device for maintenance phase of the present invention includes a base module 1, a protective shell 2, a chamber module 3, a rotary module 4, a drill bit 5, a firing module 6, and a temporary fixing module 7. Drill bits 5 of various diameters are installed in the rotary module 4; the rotary module 4 is installed on the chamber module 3; the firing module 6 is installed inside the protective shell 2; the connection between the base module 1 and the protective shell 2, the chamber module 3 and the protective shell 2, and the rotary module 4 and the chamber module 3 is achieved through the temporary fixing module 7; the diameter of the drill bit 5 is selected by rotating the rotary module 4; the firing, rotation, and retrieval of the drill bit 5 are achieved through the firing module 6.

[0066] Base module 1 includes a mating base and a motor-driven base; wherein:

[0067] like Figure 3 As shown, the mating base includes a circular mounting base 111, a transmission hole 112, and a connecting hole a113. It connects to a conventional magnetic drilling device via the circular mounting base 111 and can be designed to accommodate different types of magnetic drilling devices. In use, the device is mounted on the magnetic drilling carrier device via the mating base 11. The parameters of the carrier device are adjusted to ensure the drill bit is centered at the desired drilling point. The carrier device is then fixed in place, and the power switch is turned on to begin drilling. After the hole is smoothed, the power switch is turned off. Once the device stops rotating, the drill bit is slowly withdrawn from the hole, and the drilling quality is finally checked.

[0068] like Figure 4 As shown, the motor-driven base includes a hexagonal output terminal 121, an anti-drop hand strap 122, a control switch 123, and a connection hole b124. It houses a built-in motor, a replaceable lithium battery, and a charging interface. In use, slowly press the control switch 123. After the drill bit 5 has rotated stably, increase the pressure on the control switch 123 to increase the drill bit 5's rotation speed. After the hole is smoothed, slowly release the control switch 123. When the device stops rotating, slowly withdraw the drill bit from the hole. Finally, check the drilling quality.

[0069] like Figure 5 As shown, the protective shell 2 includes a firing rail hole 21, a temporary docking structure 22, a connecting hole c23, and a pull block locking hole 24;

[0070] like Figure 6 As shown, the chamber module 3 includes a disc rotating shaft 31, a barrel 32, a connecting hole d33, and a disc rotating hole a34; the disc rotating shaft 31 is a cylinder with two notches on its side, the notches being identical in shape to the front end of the temporary fixing module 7 and capable of being inserted, as shown in the attached diagram. Figure 10 .

[0071] like Figure 7 As shown, the rotating module 4 is a cylinder with multiple holes 41 of the same diameter, which can hold multiple drill bits 5 for storage. The cylinder has a rotating hole b42 at its center, through which the rotating shaft 31 of the rotating shaft can be inserted. The rotating module 4 rotates around the rotating shaft 31 of the rotating shaft by applying a torsional force.

[0072] like Figure 8 As shown, the basic shape of the drill bit 5 is formed by splicing a front cylinder 51 and a tail cylinder 52. The tail cylinder 51 has a hexagonal hole inside, and its shape and size are the same as those of the hexagonal prism 621. Its material is magnetic and can be quickly fixed to the hexagonal prism 621 by magnetic attraction. The outer diameter of the tail cylinder 51 is uniform. The front cylinder 51 is a drilling bit with a different radius, and its length shall not be less than 3 times the thickness of the component.

[0073] like Figure 9 As shown, the firing module 6 includes a driven shaft 61, a transmission shaft 62, a pull block 63, and a return spring 64. The driven shaft 62 includes a hexagonal prism 621 and a circular sleeve 622 with a hexagonal hole. The transmission shaft 62 is a hexagonal prism whose shape matches the internal hole of the circular sleeve 622, allowing it to slide within the hole. The pull block 63 consists of two cuboids and a ring, with the inner and outer diameters of the ring matching those of the hexagonal prism 621 and the circular sleeve 622, respectively, allowing it to slide on the surface of the hexagonal prism 621. The return spring 64 has an inner diameter matching that of the circular sleeve 622, allowing the transmission shaft 62 to slide within it.

[0074] Connection method between base module 1 and protective shell 2: First, align connection hole a113 and connection hole c23, then insert temporary fixing module 7. Temporary fixing module 7 adopts a pin structure, including first pin 71, second pin 72 and third pin. The connection between base module 1 and protective shell 2 is fixed by the third pin.

[0075] The connection method between the rotating module 4 and the barrel module 3 is as follows: first align the rotating hole a34 and the rotating hole b42 of the wheel, then insert the rotating shaft 31 of the wheel, and then insert the first pin 71 and the second pin 72.

[0076] Equipment installation sequence:

[0077] 1. Drill bit selection: Before drilling, count the diameter of the holes to be drilled and select the appropriate drill bit to put into the rotating module 4.

[0078] 2. Installation of firing module 6: Insert the handles at both ends of the pull block 63 in firing module 6 into the firing rail hole 21, and then install the driven shaft 61, transmission shaft 62 and return spring 64 in sequence. Finally, align and merge the two protective shells 2.

[0079] 3. Base module 1 installation: Align the groove of base module 1 with the protrusion of protective shell 2 and insert it. Check whether the connection hole a113 is aligned with the connection hole on one side of protective shell 2. After alignment, insert the temporary fixing module 7 (referring to the third pin) into the connection hole.

[0080] 4. Installation of chamber module 3: Align the groove of chamber module 3 with the protrusion of protective shell 2 and insert it. Check whether the connection hole d33 is aligned with the connection hole c23 on the other side of protective shell 2. After alignment, insert the pin into the connection hole.

[0081] 5. Installation of Rotary Module 4: Align the rotating hole b42 of the rotary module 4 with the rotating hole a34 of the chamber module. First, pull out the first pin 71 between the chamber module 3 and the protective housing 2, then insert the rotating shaft 31. After the rotating shaft 31 is in place, insert the first pin 71 into the connecting hole d33 and the connecting hole c23. The method of fixing the temporary fixing module 7 to the rotating shaft 31 is described in detail below. Figure 10 .

[0082] Equipment operating steps:

[0083] 1. Drill bit 5 selection: Determine the position of drill bit 5 in the rotating module 4 according to the required hole diameter, then rotate the rotating module 4, and stop the operation when the required drill bit 5 appears at the firing position.

[0084] 2. Firing of drill bit 5: Rotate the pull block 63 of the firing module 6 until it disengages from the pull block locking hole 24, then release the pull block 63. The return spring 64 extends, driving the driven shaft 61 forward, thereby pushing the drill bit 5 into the barrel 32. Specifically, the base module 1 has its own motor, which can drive the transmission shaft 62. The transmission shaft 62 and the driven shaft 61 are nested together, which can drive the driven shaft 61 to rotate. The front part 621 of the driven shaft 61 can be inserted into the tail cylinder 52 with a hexagonal hole inside. The two fit tightly together, thereby driving the bullet 5 to rotate.

[0085] 3. Drill bit rotates 5 times:

[0086] With motor base: Slowly press control switch 123. After the drill bit 5 rotates steadily, increase the pressure of pressing control switch 123 to increase the speed of drill bit 5. After the hole is ground smooth, slowly release control switch 123. When the device stops rotating, slowly withdraw the drill bit from the hole. Finally, check the drilling quality.

[0087] Mounting the device onto the magnetic drilling carrier: Adjust the carrier's parameters to ensure the drill bit is centered at the desired drilling point. Secure the carrier, then turn on its power switch to begin drilling. After the hole is smoothed, turn off the carrier's power switch. Once the device has stopped rotating, slowly withdraw the drill bit from the hole and finally check the drilling quality.

[0088] 4. Drill bit 5 retrieval: Pull back the pull block 63 of the firing module 6 to the position of the pull block locking hole 24, rotate the pull block 63 until it is locked in the pull block locking hole 24. At this time, the end of the driven shaft 61 has left the rotating module 4. The diameter of the drill bit 5 hole is larger than the diameter of the hole at the tail end of the rotating module 4 and cannot leave the rotating module 4 with the driven shaft 61, thus realizing the retrieval of the drill bit 5.

Claims

1. A detachable rotary drill bit drilling device for maintenance phases, characterized in that, include: The components include: base module (1), protective shell (2), chamber module (3), rotating module (4), drill bit (5), firing module (6), and temporary fixing module (7); among which: The rotating module (4) is installed on the barrel module (3); a number of drill bits (5) are installed in the rotating module (4); The firing module (6) is installed inside the protective shell (2); the base module (1) is connected to the protective shell (2), the barrel module (3) is connected to the protective shell (2), and the rotating module (4) is connected to the barrel module (3) through a temporary fixing module (7); By rotating the rotating module (4), any drill bit (5) mounted in the rotating module (4) can be connected to the power output end of the firing module (6); The firing, rotation, and retrieval of the drill bit (5) are achieved through the firing module (6); The base module (1) can carry a power mechanism; the power output end of the power mechanism is connected to the power input end of the firing module (6). The power output end of the firing module (6) can shoot the drill bit (5) facing the rotating module (4) out of the barrel module (3), and drive the drill bit that is shot out of the barrel module (3) to rotate through the rotation of the firing module (6). The base module (1) is a mating base or a base with a motor; The mating base includes a circular card holder (111), a transmission hole (112), and a connecting hole a (113); the mating base is connected to a conventional magnetic punching device through the circular card holder (111); it is connected to the power input end of the firing module (6) through the transmission hole (112); and it is connected to the protective shell (2) through the connecting hole a (113). The motor base (12) includes a hexagonal output terminal (121), an anti-slip hand strap (122), a control switch (123), and a connection hole b (124). The motor base (12) has a built-in motor, and the power input terminal of the firing module (6) is connected to the power output terminal of the motor in the motor base (12) through the hexagonal output terminal (121). The motor base (12) is connected to the protective shell (2) through the connection hole b (124), and the motor base (12) is provided with an anti-slip hand strap (122) and a control switch (123). The control switch (123) is used to start and stop the motor in the motor base (12). The protective housing (2) includes a firing rail hole (21), a temporary docking structure (22), a connection hole c (23), and a pull block locking hole (24); A temporary docking structure (22) is provided at one end of the protective shell (2), and a firing rail hole (21) is provided in the inner cavity of the protective shell (2). A connection hole c (23) and a pull block hole (24) are respectively provided on the shell wall of the protective shell (2). The firing module (6) is disposed in the firing rail hole (21); The protective shell (2) is connected to the base module (1) through a temporary docking structure (22) and to the barrel module (3) through a connecting hole c (23); the state of the firing module (6) is controlled by the cooperation of the pull block hole (24) and the pull block contained in the firing module (6); The chamber module (3) includes a disc body, a disc rotation shaft (31), a barrel (32), a connecting hole d (33), and a disc rotation hole a (34). The rotating hole a (34) of the wheel is set on the wheel body, the connecting hole d (33) is set on the barrel (32), one end of the rotating shaft (31) of the wheel is connected to the wall of the barrel, and the other end is set through the rotating hole a (34) of the wheel. The rotating shaft (31) of the wheel is a cylinder with two notches on the side; The temporary fixing module (7) includes two pins. The front end shape of the two pins is consistent with the shape of the two notches of the wheel rotation shaft (31), and they can be inserted into the two notches of the wheel rotation shaft (31) one by one.

2. The detachable rotary drill bit drilling device for maintenance phase according to claim 1, characterized in that, The rotating module (4) is cylindrical in shape, and the rotating module (4) is provided with a rotating hole b (42) along the axial direction, and a number of circular holes (41) of the same diameter are evenly distributed around the rotating hole b (42). The rotating module (4) is sleeved on the rotating shaft (31) of the wheel through the rotating hole b (42) and is located between the wheel body and the barrel (32); The rotating module (4) rotates around the rotating shaft (31) of the wheel by applying a torsional force.

3. The detachable rotary drill bit drilling device for maintenance phase according to claim 2, characterized in that, The firing module (6) includes a driven shaft (61), a transmission shaft (62), a pull block (63), and a return spring (64); wherein: One end of the driven shaft (61) is configured as a hexagonal prism (621), and the other end is configured as a circular sleeve (622) with a hexagonal hole; the hexagonal prism (621) and the circular sleeve (622) are connected by a cylindrical connecting section; the outer diameter of the cylindrical connecting section is larger than the circumscribed circle diameter of the hexagonal prism (621) but smaller than the outer diameter of the circular sleeve (622); The drive shaft (62) is a hexagonal prism, the shape of which is consistent with the internal hole of the circular sleeve (622), and it can slide inside the hole of the circular sleeve (622); The pull block (63) includes a ring body and two cuboids symmetrically arranged on both sides of the ring body. The inner diameter of the ring body matches the outer diameter of the cylindrical connecting section. The two cuboids pass through the two pull block holes (24) provided on the protective shell (2) respectively. The reset spring (64) is sleeved around the drive shaft (62), and the inner diameter of the reset spring (64) is the same as that of the circular sleeve (622), so that the drive shaft (62) can move freely inside the reset spring (64); The power input end of the power transmission mechanism can be connected to the transmission shaft (62), and the two ends of the return spring (64) are respectively in contact with the base module (1) and the circular sleeve (622); The firing of the drill bit (5) is achieved by rotating the pull block (63) to disengage from the pull block jack (24) located in the protective shell (2). The return spring (64) loses pressure and extends to push the driven shaft (61). The driven shaft (61) enters the rotating module (4) and pushes the drill bit (5) out to the barrel (32). The rotation of the drill bit (5) is achieved by the rotation of the drive shaft (62) driving the driven shaft (61), which in turn drives the drill bit (5). The drill bit (5) is retrieved by applying an external pulling force to the pull block (63), compressing the return spring (64), and then rotating the pull block (63) until it reaches the pull block jamming hole (24).

4. The detachable rotary drill bit drilling device for maintenance phase according to claim 1, characterized in that, The basic shape of the drill bit (5) is formed by splicing a front cylinder (51) and a tail cylinder (52). The tail cylinder (52) has a hexagonal hole inside, and its shape and size are the same as the hexagonal cylinder (621). Its material is magnetic and can be quickly fixed to the hexagonal cylinder (621) by magnetic attraction. The outer diameter of the tail cylinder (52) is uniform. The front cylinder (51) is a drilling bit with different radii, and its length shall not be less than 3 times the thickness of the component.

5. A detachable rotary drill bit drilling device for maintenance phase according to claim 1, characterized in that, The connection method between the base module (1) and the protective shell (2) is as follows: first align the connection hole a (113) and the connection hole c (23), and then insert the temporary fixing module (7); the connection method between the rotating module (4) and the barrel module (3) is as follows: first align the wheel rotation hole a (34) and the wheel rotation hole b (42), then insert the wheel rotation shaft (31), and then insert the temporary fixing module (7).

6. The detachable rotary drill bit drilling device for maintenance phase according to claim 1, characterized in that, During the firing, rotation and reset of the drill bit (5), the drive shaft (62) is always located in the circular sleeve (622) of the driven shaft (61).

7. A method of using a detachable rotary drill bit drilling device for maintenance phases, implemented based on the detachable rotary drill bit drilling device for maintenance phases as described in any one of claims 1 to 5, characterized in that... include: Step 1: Drill bit selection: Before drilling, the diameter of the holes to be drilled is counted, and the appropriate drill bit is selected and placed into the rotating module. Step 2, Drill bit firing: Rotate the trigger block until it disengages from the trigger block locking hole, then release the trigger block. The return spring extends, driving the driven shaft forward, which in turn pushes the drill bit into the barrel. Step 3: Rotate the drill bit: When using a base with a motor, press the control switch slowly. After the drill bit rotates steadily, increase the pressure of the control switch to increase the drill bit speed. After the hole is smoothed, slowly release the control switch until the equipment stops rotating. Then, slowly remove the drill bit from the hole and finally check the drilling quality. When selecting a base, install the device on the magnetic drilling carrier device, adjust the parameters of the magnetic drilling carrier device to ensure that the drill bit is centered at the point where drilling is required, then fix the magnetic drilling carrier device, and finally turn on the power switch of the magnetic drilling carrier device to start the drilling operation. After the hole is smoothed, turn off the power switch of the magnetic drilling carrier equipment. When the equipment stops rotating, slowly withdraw the drill bit from the hole and finally check the drilling quality. Step 4: Drill bit recovery: Pull the trigger block back to the position of the trigger block locking hole, rotate the trigger block until it is locked into the trigger block locking hole. At this time, the end of the driven shaft has left the rotating module. The drill bit hole diameter is larger than the diameter of the hole at the tail end of the rotating module, so it cannot leave the rotating module with the driven shaft, thus realizing the recovery of the drill bit.

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