Drill bit maintenance device for coal mining

Abstract

The invention relates to the field of drill bit maintenance, in particular to a drill bit maintenance device for coal mining. The drill bit maintenance device for coal mining comprises a cleaning barrel; a plurality of placing grooves are formed in the peripheral side of the cleaning barrel in a penetrating manner, and are distributed at equal intervals along the axis of the cleaning barrel; a plurality of oil brush assemblies and cleaning brush assemblies are distributed in the cleaning barrel at equal intervals along the axis, and the oil brush assemblies and the cleaning brush assemblies are arranged in a staggered mode. And a telescopic assembly is arranged in each placing groove. Compared with a traditional extensive mode of manually holding a brush to wipe a drill bit, the drill bit maintenance device for coal mining can treat the drill bit in sequence through cooperative operation of the multiple cleaning brush assemblies and the oil brush assemblies, large-area cleaning and oiling are completed at a time, the maintenance time of a single drill bit is greatly shortened, and the maintenance efficiency is improved. The urgent requirement of frequently replacing the drill bit in large-scale excavation operation can be fully met, the drill bit can be put into the next round of operation more quickly, and the continuity of the excavation process is guaranteed.

Description

Technical Field

[0001] The invention relates to the field of drill bit maintenance, and in particular to a drill bit maintenance device for coal mining. Background Art

[0002] In coal mining operations, drill bits, as critical mining tools, are subject to long-term harsh working environments. Mines are characterized by high humidity and dust. As the drill bit rotates at high speed into the coal seam, it not only withstands tremendous impact and friction, but also easily absorbs various impurities, such as coal dust and rock particles, rapidly covering its surface with dirt. Traditional drill bit maintenance methods are relatively crude, relying on manual cleaning with simple handheld tools, such as wiping the drill bit with a brush dipped in a small amount of cleaning fluid. This method is inefficient, and maintaining a single drill bit often takes a significant amount of time for a worker, making it difficult to meet the frequent drill bit replacement requirements of large-scale mining operations. Furthermore, manual cleaning cannot guarantee thoroughness, and dirt easily remains in the fine grooves and crevices of the drill bit. This dirt can exacerbate drill bit wear and shorten its service life during subsequent use.

[0003] Therefore, it is necessary to provide a new coal mine excavation drill bit maintenance device to solve the above-mentioned technical problems. Summary of the Invention

[0004] In order to overcome the defects of the prior art, a drill bit maintenance device for coal mining is now provided to solve the above problems.

[0005] The drill bit maintenance device for coal mining provided by the present invention comprises: a cleaning barrel; a plurality of placement slots are provided on the circumferential side of the cleaning barrel, and the plurality of placement slots are equidistantly distributed along the axis of the cleaning barrel; wherein, a plurality of oil brush assemblies and cleaning brush assemblies are equidistantly distributed along the axis inside the cleaning barrel, and the oil brush assemblies and the cleaning brush assemblies are staggered; a telescopic assembly is provided in each of the placement slots, and the telescopic assembly can enable the oil brush assembly and the cleaning brush assembly to perform reciprocating telescopic movement to adapt to drill bits of different sizes; a rotating fixing assembly is provided at the bottom of the cleaning barrel, and the drill bit can be clamped by the rotating fixing assembly; a spraying assembly capable of spraying liquid is installed on the top of both sides of the cleaning barrel; the telescopic assembly includes a bidirectional screw connected to the placement slot for rotation, and the outer sides of the bidirectional screw are threadedly connected to threaded blocks, the threaded block is slidably connected to the placement slot, and the same side of the two threaded blocks is connected to a telescopic rod, and the telescopic rod is located on the inner side of the cleaning barrel, and the ends of the two telescopic rods away from the threaded block are commonly connected to a telescopic plate.

[0006] Preferably, an oil brush gear and a cleaning brush gear are respectively installed on one side of the center of the outer sides of every two adjacent bidirectional screws, and the oil brush gear is located above the cleaning brush gear.

[0007] Preferably, the outer side of each of the oil brush gears is commonly meshed and connected with an oil brush gear ring, and the oil brush gear ring is located on the outside of the cleaning bucket, and the outer side of each of the cleaning brush gears is commonly meshed and connected with a cleaning brush gear ring, and the cleaning brush gear ring is located on the outside of the cleaning bucket, and support rings are installed on the outside of the cleaning bucket at the top of the oil brush gear ring and the bottom of the cleaning brush gear ring, and multiple hand cranks are connected to the outer sides of the oil brush gear ring and the cleaning brush gear ring.

[0008] Preferably, the oil brush assembly includes a plurality of brush heads slidably connected to one side of the telescopic plate, the telescopic plate is provided with a telescopic groove for the brush heads to slide, and one side of each brush head is provided with an elastic member inside the telescopic plate.

[0009] Preferably, the elastic member includes a fixed block fixedly mounted on the inner side wall of the telescopic plate, the fixed block is connected with sliding rods on all four sides, the outer side of each sliding rod is slidably connected with a slider, the outer side of each sliding rod is sleeved with a return spring located between the fixed block and the slider, each slider is connected to a support rod on the side close to the brush head, and each support rod is connected to the brush head on the side away from the slider.

[0010] Preferably, the cleaning brush assembly has the same structure as the oil brush assembly mentioned above.

[0011] Preferably, the rotating fixing assembly includes a support platform installed with the inner wall of the cleaning barrel through a connecting frame, and the inner side of the support platform is rotatably connected to the rotating platform, the top of the rotating platform is slidably connected with clamping blocks on all sides, and a lifting platform is provided below the rotating platform. The lifting platform is connected with traction rods on all sides, and a traction groove is opened through the bottom of each clamping block on the rotating platform, and each traction rod is connected to the bottom of the clamping block through a traction groove on the side away from the lifting platform. A first driving member for driving the lifting platform to move up and down is installed at the bottom of the rotating platform.

[0012] Preferably, the rotating fixing assembly also includes a driven gear ring connected to the outer bottom of the rotating table, one side of the driven gear ring is meshed with a driving gear, the top of the driving gear is rotatably connected to the bottom of the connecting frame, and the bottom of the connecting frame is equipped with a second driving member for driving the driving gear to rotate through a bracket.

[0013] Preferably, the spray assembly includes a guide plate slidably connected to the top of the outer side of the cleaning bucket, a nozzle is connected to the bottom of one side of the guide plate, and the nozzle is located at the top of the cleaning bucket, the top of the nozzle is connected to a water pipe, the water pipe is located above the guide plate, and one end of the water pipe away from the nozzle extends to the outside of the cleaning bucket, the bottom of the side of the guide plate away from the nozzle is connected to a moving block, and a third driving member for driving the moving block to move back and forth is installed at the top of the outer side of the cleaning bucket.

[0014] Preferably, the top and bottom of the cleaning bucket are both funnel-shaped structures, and the funnels are arranged in opposite directions.

[0015] Compared with related technologies, the drill bit maintenance device for coal mining provided by the present invention has the following beneficial effects: Compared with the traditional rough method of manually wiping the drill bit with a handheld brush, the present invention can process the drill bits one after another through the coordinated operation of multiple cleaning brush assemblies and oil brush assemblies, greatly shortening the maintenance time of a single drill bit. It can fully meet the urgent need of frequent replacement of drill bits in large-scale mining operations, allowing the drill bit to be put into the next round of operations more quickly and ensuring the continuity of the mining process.

[0016] The present invention provides a cleaning brush assembly and an oil brush assembly, and the structures in the two assemblies are the same, and they have the same elastic expansion function and adaptability. When the brush head of the cleaning brush assembly contacts the surface of the drill bit, due to the presence of the elastic part, the brush head can automatically adjust according to the shape and surface state of the drill bit, ensuring comprehensive and effective cleaning of the drill bit. Since the brush head is subjected to different forces when working, the elastic structure can maintain good contact between the brush head and the drill bit during the cleaning process, thereby improving the cleaning effect and reducing damage to the brush head and the drill bit caused by rigid collision.

[0017] The present invention provides a rotating fixing assembly, and through the rotating fixing assembly, on the one hand, the clamping block can tightly and firmly clamp the drill bit under the precise control of the lifting platform and the traction rod, preventing the drill bit from being displaced when rotating at high speed or subjected to external force, thereby ensuring the accuracy of operations such as cleaning and oiling. On the other hand, the drill bit can be stably driven in rotation through the meshing transmission of the driving gear and the driven gear ring, so that the drill bit can rotate at a uniform speed during maintenance, and cooperate with the work of the oil brush assembly and the cleaning brush assembly to evenly distribute the cleaning fluid and lubricating oil on the surface of the drill bit, thereby comprehensively improving the maintenance quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic structural diagram of a preferred embodiment of the drill bit maintenance device for coal mining provided by the present invention; Figure 2 It is a structural diagram of the cleaning brush assembly; Figure 3 It is a structural diagram of the telescopic component; Figure 4 is a schematic structural diagram of an elastic member; Figure 5 It is a structural schematic diagram of one of the rotating fixed components; Figure 6 This is a structural diagram of the second rotating fixed component.

[0019] Numbers in the figure: 1. Cleaning barrel; 2. Bidirectional screw; 21. Threaded block; 22. Telescopic rod; 23. Telescopic plate; 24. Oil brush gear; 25. Cleaning brush gear; 26. Oil brush gear ring; 27. Cleaning brush gear ring; 28. Support ring; 29. ​​Hand crank; 3. Brush head; 31. Fixed block; 32. Slide rod; 33. Slider; 34. Return spring; 35. Support rod; 4. Support platform; 41. Rotating platform; 42. Clamping block; 43. Lifting platform; 44. Pull rod; 45. Driven gear ring; 46. Driving gear; 5. Guide plate; 51. Spray nozzle; 52. Water pipe; 53. Moving block. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0022] An embodiment of the present invention provides a drill bit maintenance device for coal mining, comprising: a cleaning barrel 1; a plurality of placement slots extending through the periphery of the cleaning barrel 1, the plurality of placement slots being evenly spaced along the axis of the cleaning barrel 1; a plurality of oil brush assemblies and cleaning brush assemblies being evenly spaced along the axis within the cleaning barrel 1, the oil brush assemblies and cleaning brush assemblies being staggered; a telescopic assembly being provided in each placement slot, and the telescopic assembly enabling the oil brush assembly and cleaning brush assembly to perform reciprocating telescopic motion to accommodate drill bits of different sizes; A rotating fixing assembly is provided at the bottom of the cleaning bucket 1, and the drill bit can be clamped by the rotating fixing assembly; spraying assemblies capable of spraying liquid are installed on the top of both sides of the cleaning bucket 1; the telescopic assembly includes a bidirectional screw 2 that is rotatably connected to the placement groove, and the outer sides of the bidirectional screw 2 are threadedly connected to threaded blocks 21, and the threaded blocks 21 are slidably connected to the placement groove. A telescopic rod 22 is connected to the same side of the two threaded blocks 21, and the telescopic rod 22 is located on the inner side of the cleaning bucket 1, and the ends of the two telescopic rods 22 away from the threaded block 21 are commonly connected to a telescopic plate 23.

[0023] It should be noted that a plurality of through-type placement grooves are designed on the circumference of the cleaning barrel 1. These placement grooves are arranged in an equidistant manner along the axis of the cleaning barrel 1. This distribution method not only ensures the overall balance of the device, but also provides a basis for the reasonable layout of the subsequent internal components. Inside the cleaning barrel 1, a plurality of oil brush assemblies and cleaning brush assemblies equidistantly distributed along the axis are the key parts for achieving efficient maintenance of the drill bit. They are staggered. Such a layout can ensure that when the drill bit is maintained, the drill bit can be thoroughly cleaned and oiled from different angles and positions, avoiding the occurrence of maintenance blind spots, thereby greatly improving the quality and effect of maintenance. The bidirectional screw 2 in the telescopic assembly is cleverly connected to the placement groove, and the precise threads on both sides of its outer side are connected to the thread block 21, and the thread block 21 can slide stably in the placement groove. This structural design of thread transmission and sliding fit enables the rotation of the bidirectional screw 2 to be converted into the linear motion of the thread block 21. The telescopic rods 22 connected to the same side of the two threaded blocks 21 play a key role in telescopic adjustment. Located inside the cleaning barrel 1, they are connected to a telescopic plate 23 at the ends of the two telescopic rods 22 facing away from the threaded blocks 21, effectively supporting and driving the oil brush assembly and the cleaning brush assembly. This allows them to perform precise reciprocating telescopic motion according to drill bits of varying sizes, ensuring that both large and small drill bits can be properly cleaned and maintained in the device. Furthermore, a rotating fixed assembly at the bottom of the cleaning barrel 1 ensures stable clamping of the drill bit during maintenance. During maintenance operations such as cleaning and oiling, the rotating fixed assembly firmly holds the drill bit, preventing it from shifting or shaking due to high-speed rotation or external forces, thereby ensuring smooth maintenance and consistent maintenance results. Furthermore, spray assemblies located at the top of each side of the cleaning barrel 1 are responsible for promptly supplying the drill bit with the required liquid medium, such as cleaning fluid or lubricating oil, during maintenance. The spray assembly can spray liquid onto the drill bit, and cooperate with the internal oil brush assembly and cleaning brush assembly to form a complete drill bit maintenance process, further improving the efficiency and quality of drill bit maintenance, extending the service life of the drill bit, and providing strong support for the efficient and safe development of coal mining work.

[0024] In an embodiment of the present invention, an oil brush gear 24 and a cleaning brush gear 25 are respectively installed on one side of the center of the outer side of each two adjacent bidirectional screws 2, and the oil brush gear 24 is located above the cleaning brush gear 25. The outer side of each oil brush gear 24 is commonly meshed and connected with an oil brush gear ring 26, and the oil brush gear ring 26 is located on the outer side of the cleaning barrel 1. The outer side of each cleaning brush gear 25 is commonly meshed and connected with a cleaning brush gear ring 27, and the cleaning brush gear ring 27 is located on the outer side of the cleaning barrel 1. Support rings 28 are installed on the outside of the cleaning barrel 1 at the top of the oil brush gear ring 26 and the bottom of the cleaning brush gear ring 27. The outer sides of the oil brush gear ring 26 and the cleaning brush gear ring 27 are connected to multiple hand cranks 29.

[0025] It should be noted that the outer sides of the bidirectional screws 2 are equipped with oil brush gears 24 and cleaning brush gears 25. Each adjacent bidirectional screw 2 has an oil brush gear 24 and cleaning brush gear 25 mounted on the center side of the outer sides, with the oil brush gear 24 positioned above the cleaning brush gear 25. This arrangement lays the foundation for the subsequent transmission and drive mechanism. The outer sides of each oil brush gear 24 mesh with an oil brush ring 26, which is located on the outside of the wash bucket 1. This means that when the oil brush ring 26 rotates, it meshes with multiple oil brush gears 24, simultaneously driving the connected oil brush assembly. Similarly, the outer sides of each cleaning brush gear 25 mesh with a cleaning brush ring 27, which is located on the outside of the wash bucket 1. When the cleaning brush ring 27 rotates, it drives the cleaning brush gear 25, thereby activating the cleaning brush assembly. Support rings 28 are installed on the outside of the cleaning barrel 1, at the top of the oil brush gear ring 26 and the bottom of the cleaning brush gear ring 27. The main function of the support ring 28 is to provide support and a stable mounting position for the oil brush gear ring 26 and the cleaning brush gear ring 27, ensuring that they do not deviate or wobble during rotation, thereby ensuring the stability and reliability of the entire transmission system. Multiple hand cranks 29 are connected to the outside of the oil brush gear ring 26 and the cleaning brush gear ring 27. The presence of the hand cranks 29 provides a manual operation method for the operator. The operator can drive the rotation of the oil brush gear ring 26 or the cleaning brush gear ring 27 by shaking the hand cranks 29.

[0026] In an embodiment of the present invention, the oil brush assembly includes a plurality of brush heads 3 slidably connected to one side of the telescopic plate 23. The telescopic plate 23 is provided with a telescopic groove for the brush head 3 to slide. One side of each brush head 3 is located inside the telescopic plate 23 and an elastic member is provided. The elastic member includes a fixed block 31 fixedly installed on the inner side wall of the telescopic plate 23. The fixed block 31 is connected with a sliding rod 32 on all four sides. The outer side of each sliding rod 32 is slidably connected with a slider 33. The outer side of each sliding rod 32 is located between the fixed block 31 and the slider 33 and a return spring 34 is sleeved. Each slider 33 is connected to a support rod 35 on the side close to the brush head 3, and each support rod 35 is connected to the brush head 3 on the side away from the slider 33. The cleaning brush assembly has the same structure as that in the above-mentioned oil brush assembly.

[0027] It should be noted that the structural design of the oil brush assembly is to achieve efficient oiling operation of the drill bit used for coal mining. The oil brush assembly includes a plurality of brush heads 3 that are slidably connected to one side of the telescopic plate 23. The telescopic groove provided on the telescopic plate 23 provides a sliding path for the brush head 3, so that the brush head 3 can perform telescopic movement within a certain range. The elastic member provided on one side of each brush head 3 in the telescopic plate 23 plays an important buffering and regulating role. The core component of the elastic member includes a fixed block 31 mounted on the inner wall of the telescopic plate 23, a sliding rod 32 connected to the fixed block 31 on all sides, a slider 33 slidably connected to the outer side of the slider 32, and a reset spring 34 is sleeved between the fixed block 31 and the slider 33 on the outer side of the slider 32. When the brush head 3 is subjected to external pressure, the reset spring 34 will be compressed and deformed, causing the slider 33 to slide along the slide rod 32, and the support rod 35 transmits the movement of the slider 33 to the brush head 3, causing the brush head 3 to produce corresponding expansion and contraction. When handling drill bits of different sizes, since the shapes and sizes of the drill bits may vary, the brush head 3 will be subjected to different pressures when in contact with the drill bit. The elastic member allows the brush head 3 to automatically adjust its position according to the pressure, ensuring that the brush head 3 can fit tightly against the drill bit surface, thereby achieving uniform oiling of the drill bit surface and avoiding uneven oiling or missed areas caused by loose fit between the brush head and the drill bit. When the brush head 3 contacts the drill bit or is impacted during operation, the return spring 34 can act as a buffer, preventing the brush head 3 from being damaged by rigid collisions. It also protects the telescopic plate 23 and other components, extending the service life of the entire oil brush assembly. In addition, the cleaning brush assembly has the same structure as the oil brush assembly, which means that the cleaning brush assembly also has the same elastic and retractable function and adaptability. When the brush head 3 of the cleaning brush assembly contacts the drill bit surface, due to the presence of the elastic member, the cleaning brush can automatically adjust according to the shape and surface condition of the drill bit, ensuring comprehensive and effective cleaning of the drill bit. The cleaning brush is subjected to different forces when working, and the elastic structure can maintain good contact between the brush head and the drill bit during the cleaning process, thereby improving the cleaning effect and reducing damage to the cleaning brush and drill bit caused by rigid collision.

[0028] In an embodiment of the present invention, a rotating and fixing assembly includes a support platform 4 installed with an inner side wall of the cleaning barrel 1 through a connecting frame, and the inner side of the support platform 4 is rotatably connected to a rotating platform 41, and clamping blocks 42 are slidably connected on all four sides of the top of the rotating platform 41. A lifting platform 43 is provided below the rotating platform 41, and traction rods 44 are connected on all four sides of the lifting platform 43. A traction groove is provided on the bottom of each clamping block 42 on the rotating platform 41, and each traction rod 44 is connected to the bottom of the clamping block 42 through a traction groove on the side away from the lifting platform 43. A first driving member for driving the lifting platform 43 to move up and down is installed at the bottom of the rotating platform 41, and the rotating and fixing assembly also includes a driven gear ring 45 connected to the outer bottom of the rotating platform 41, and one side of the driven gear ring 45 is meshed with a driving gear 46. The top of the driving gear 46 is rotatably connected to the bottom of the connecting frame, and the bottom of the connecting frame is provided with a second driving member for driving the driving gear 46 to rotate through a bracket.

[0029] It should be noted that the rotating and fixing assembly is a key part of the drill bit maintenance device for coal mining. It is mainly used to clamp and rotate the drill bit to ensure the stability and position control of the drill bit during maintenance processes such as cleaning and oiling. The rotating and fixing assembly includes a support platform 4 installed on the inner wall of the cleaning barrel 1 through a connecting frame. The support platform 4 provides a stable support base for the entire rotating and fixing assembly. The rotating platform 41, which is rotatably connected to the inner side of the support platform 4, is the core component of the rotation and makes subsequent drill bit rotation possible. Clamping blocks 42 are slidably connected to the top and sides of the rotating platform 41. These clamping blocks 42 are used to clamp the drill bit. Through close contact with the drill bit, they can firmly fix the drill bit on the rotating platform 41, preventing the drill bit from being displaced or shaking during maintenance, thereby ensuring the safety and reliability of maintenance operations. The lifting platform 43 located below the rotating platform 41 is the key to realizing the movement of the clamping blocks 42. The lifting platform 43 is surrounded by traction rods 44. The rotating platform 41 has traction slots at the bottom of each clamping block 42. Each traction rod 44 is connected to the bottom of the clamping block 42 via the traction slot on the side away from the lifting platform 43. As the lifting platform 43 moves up and down, the traction rods 44 move within the traction slots, driving the clamping blocks 42 to slide along the top of the rotating platform 41, clamping or releasing the drill bit. A first drive member mounted at the bottom of the rotating platform 41 drives the lifting platform 43 up and down, providing the power source for the movement of the clamping blocks 42. By controlling the operation of the first drive member, the position of the lifting platform 43 and, in turn, the opening and closing of the clamping blocks 42 can be precisely controlled to accommodate drill bits of varying diameters and ensure effective drill bit clamping. The first drive member is an electric push rod. The rotating fixed assembly also includes a driven gear ring 45 connected to the outer bottom of the rotating platform 41, a driving gear 46 meshingly connected to one side of the driven gear ring 45, and a second drive member mounted at the bottom of the connecting frame via a bracket to drive the driving gear 46. When the second driving member drives the active gear 46 to rotate, the meshing relationship between the active gear 46 and the driven gear ring 45 will drive the driven gear ring 45 to rotate, thereby driving the rotating table 41 to rotate. This gear transmission method can accurately control the rotation speed and angle of the rotating table 41, ensuring that the drill bit can rotate at the appropriate speed and angle during the cleaning and oiling process, making the cleaning and oiling more uniform and thorough. The second driving member is composed of an electric motor and a gearbox. As a power source, the electric motor can convert electrical energy into mechanical energy to provide power for the entire rotating fixed assembly, while the main function of the gearbox is to adjust the speed and torque output by the electric motor. The electric motor and the gearbox are both mature existing technologies and will not be further described here.

[0030] In an embodiment of the present invention, the spray assembly includes a guide plate 5 that is slidably connected to the top of the outer side of the cleaning bucket 1, a nozzle 51 is connected to the bottom of one side of the guide plate 5, and the nozzle 51 is located at the top of the cleaning bucket 1, the top of the nozzle 51 is connected to a water pipe 52, the water pipe 52 is located above the guide plate 5, and one end of the water pipe 52 away from the nozzle 51 extends to the outside of the cleaning bucket 1, a moving block 53 is connected to the bottom of the side of the guide plate 5 away from the nozzle 51, and a third driving member for driving the moving block 53 to move back and forth is installed at the top of the outer side of the cleaning bucket 1.

[0031] It should be noted that the spray assembly plays an important role in the drill bit maintenance device for coal mining. It is mainly responsible for providing cleaning liquid or other required liquids for the drill bit maintenance process. The spray assembly includes a guide plate 5 that is slidably connected to the top of the outer side of the cleaning barrel 1. The top of the outer side of the cleaning barrel 1 is provided with a guide groove for the guide plate 5 to slide. This sliding connection design gives the guide plate 5 a certain degree of mobility, allowing it to flexibly move its position on the top of the outer side of the cleaning barrel 1. A nozzle 51 is connected to the bottom of one side of the guide plate 5, and the nozzle 51 is located at the top of the cleaning barrel 1, which ensures that the nozzle 51 can be in a suitable position to accurately spray liquid onto the drill bit inside the cleaning barrel 1. The nozzle 51 is a key component for realizing the liquid spraying function. It can spray the liquid transported from the water pipe 52 at a certain angle and flow rate, evenly sprinkle it on the surface of the drill bit, and provide a liquid medium for maintenance operations such as cleaning and lubrication. The top of the spray head 51 is connected to a water pipe 52, which is located above the guide plate 5. The end of the water pipe 52, away from the spray head 51, extends to the outside of the washing bucket 1. The water pipe 52 serves as a liquid delivery channel, connecting the external liquid source to the spray head 51, ensuring a continuous liquid supply and enabling the spray head 51 to spray continuously. A movable block 53 is connected to the bottom of the guide plate 5, away from the spray head 51. This movable block 53 is a key component that enables the movement of the guide plate 5. A third drive element is mounted on the top of the outer side of the washing bucket 1 to drive the movable block 53 back and forth. This third drive element, an electric push rod, primarily drives the movable block 53 in reciprocating motion, thereby moving the guide plate 5 and the spray head 51 along the outer top of the washing bucket 1. This allows switching between the two spray heads 51. Each of the two spray assemblies is equipped with a water pipe, and these two water pipes 52 perform different important functions. One water pipe 52 is specifically connected to a cleaning fluid source, providing the necessary cleaning fluid to the nozzle 51. When the cleaning fluid enters the nozzle 51 through this water pipe 52, it sprays the fluid evenly onto the drill bit within the cleaning bucket 1, effectively cleaning the drill bit. Cleaning fluid plays a key role in the maintenance of coal mining drill bits, removing dirt and impurities from the drill bit surface. These dirt and impurities can accumulate on the drill bit surface during mining operations, affecting the drill bit's performance and service life. The cleaning fluid provided by this water pipe ensures the drill bit surface is clean, creating optimal conditions for subsequent maintenance steps. The other water pipe 52 is connected to an oil source. When the oil enters the corresponding nozzle 51 through this water pipe 52, the nozzle 51 sprays the oil onto the cleaned drill bit, providing essential lubrication. During coal mining operations, good lubrication can significantly reduce friction during operation, reduce wear, extend the drill bit's service life, and improve its efficiency. Moreover, since the oil is supplied through a separate water pipe, this ensures a more stable and precise supply of oil, avoids the mixing of cleaning fluid and oil, and ensures the purity and lubrication effect of the oil.

[0032] In the embodiment of the present invention, the top and the bottom of the cleaning bucket 1 are both funnel-shaped structures, and the funnels are arranged opposite to each other.

[0033] It should be noted that the funnel-shaped structure at the top reduces liquid splashing, and the funnel-shaped structure at the bottom facilitates liquid drainage. After the drill bit is cleaned and oiled, the liquid remaining in the cleaning bucket 1 needs to be drained promptly. The funnel-shaped structure at the bottom allows the liquid to quickly converge to the lowest point, making it easier to drain through the drain or oil outlet.

[0034] The operating principle of the coal mining drill bit maintenance device provided by the present invention is as follows: First, the coal mining drill bit requiring maintenance is placed in the cleaning bucket 1 and clamped by the rotary fixing assembly. Specifically, the first driving member in the rotary fixing assembly is activated to move the lifting platform 43 up and down. The lifting platform 43 drives the traction rod 44 to move within the traction groove of the rotating platform 41, thereby pulling the clamping block 42 to slide along the top of the rotating platform 41, clamping the drill bit. At this point, the drill bit is firmly fixed to the rotating platform 41, ensuring that it will not move or shake during subsequent maintenance operations.

[0035] Next, the water pipe 52 connected to the cleaning fluid source is opened, and the cleaning fluid is delivered to the nozzle 51 through the water pipe 52. Simultaneously, the third drive member is activated, causing the movable block 53 on the guide plate 5 to begin reciprocating motion, driving the nozzle 51 to slide along the outer top of the cleaning bucket 1, thereby adjusting the position of the nozzle 51. This allows the nozzle 51 to spray the cleaning fluid onto the drill bit, flushing away dirt and impurities from the drill bit surface. During the cleaning process, the cleaning brush gear ring 27 is rotated by turning the hand crank 29. The rotation of the cleaning brush gear ring 27 rotates the meshing cleaning brush gear 25, which in turn drives the corresponding structure on the outer side of the bidirectional screw 2 to move. As the bidirectional screw 2 rotates, the threaded connection on both sides of its outer side causes the threaded block 21 to slide within the placement slot, thereby driving the telescopic rod 22 and telescopic plate 23 to move. The brush head 3 of the cleaning brush assembly on the telescopic plate 23 will expand and contract in the telescopic groove under the action of the elastic member. When the brush head 3 is subjected to external pressure, the return spring 34 will be compressed and deformed, causing the slider 33 to slide along the slide rod 32, and the support rod 35 to transmit the movement of the slider 33 to the brush head 3, causing the brush head 3 to expand and contract accordingly. The brush head 3 can automatically adjust its position according to the shape and surface condition of the drill bit and fit closely to the surface of the drill bit.

[0036] Then, when the driving gear 46 is driven to rotate by the second driving member, the driven gear ring 45 is driven to rotate due to the meshing relationship between the driving gear 46 and the driven gear ring 45, and then the rotating table 41 is driven to rotate, so that the drill bit on the rotating table 41 rotates, and cooperates with the brush head 3 to fully clean the surface of the drill bit.

[0037] Then, after completing the cleaning process, wait for the drill bit to air dry or connect an external drying device to dry the drill bit. The drying device is a mature existing technology. For details, please refer to the patent content with publication number CN215887651U. The drying device is placed on the top of the cleaning barrel 1 and the drying device is activated to dry the drill bit. The fan in the drying device is responsible for driving the air to flow inside the cleaning barrel 1 so that the hot air can be evenly distributed around the drill bit, and the wet air containing moisture is discharged out of the cleaning barrel 1, while introducing fresh dry air.

[0038] Subsequently, the cleaning liquid water pipe 52 is closed, and the water pipe 52 connected to the oil source is opened to deliver the oil to the nozzle 51. Driven by the third driving member, the nozzle 51 continues to spray the oil evenly on the cleaned drill bit, and the drill bit surface is oiled by the cooperation of the oil brush assembly and the rotating fixed assembly. The elastic member in the oil brush assembly ensures that the brush head 3 can fit closely to the drill bit surface, ensuring uniform oiling and avoiding omissions, while preventing the brush head 3 from being damaged by collision.

[0039] Finally, when the cleaning and oiling operations are completed, the various driving components are turned off, the clamping block 42 of the rotating fixed assembly is released, and the maintained drill bit is taken out of the cleaning barrel 1.

[0040] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0041] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A drill bit maintenance device for coal mining, characterized in that: include: Washing bucket (1); A plurality of placement grooves are formed through the circumference of the cleaning bucket (1), and the plurality of placement grooves are distributed at equal distances along the axis of the cleaning bucket (1); Wherein, a plurality of oil brush assemblies and cleaning brush assemblies are evenly distributed along the axis inside the cleaning barrel (1), and the oil brush assemblies and cleaning brush assemblies are staggered; A telescopic assembly is provided in each of the placement slots, and the oil brush assembly and the cleaning brush assembly can be reciprocated and telescopically moved by the telescopic assembly to adapt to drill bits of different sizes; A rotating fixing assembly is provided at the bottom of the cleaning barrel (1), and the drill bit can be clamped by the rotating fixing assembly; Spraying components capable of spraying liquid are installed on the tops of both sides of the cleaning barrel (1); The telescopic assembly comprises a bidirectional screw (2) rotatably connected to the placement groove, and thread blocks (21) are threadedly connected to the outer sides of the bidirectional screw (2), and the thread blocks (21) are slidably connected to the placement groove. A telescopic rod (22) is connected to the same side of the two thread blocks (21), and the telescopic rod (22) is located on the inner side of the cleaning bucket (1), and the ends of the two telescopic rods (22) away from the thread blocks (21) are commonly connected to a telescopic plate (23).

2. The drill bit maintenance device for coal mining according to claim 1, characterized in that: An oil brush gear (24) and a cleaning brush gear (25) are respectively mounted on one side of the center of the outer sides of every two adjacent bidirectional screw rods (2), and the oil brush gear (24) is located above the cleaning brush gear (25).

3. The drill bit maintenance device for coal mining according to claim 2, characterized in that: The outer side of each of the oil brush gears (24) is meshedly connected with an oil brush toothed ring (26), and the oil brush toothed ring (26) is located on the outer side of the cleaning barrel (1); the outer side of each of the cleaning brush gears (25) is meshedly connected with a cleaning brush toothed ring (27), and the cleaning brush toothed ring (27) is located on the outer side of the cleaning barrel (1); support rings (28) are installed on the outer side of the cleaning barrel (1) at the top of the oil brush toothed ring (26) and the bottom of the cleaning brush toothed ring (27); and the outer sides of the oil brush toothed ring (26) and the cleaning brush toothed ring (27) are connected to a plurality of hand cranks (29).

4. The drill bit maintenance device for coal mining according to claim 1, characterized in that: The oil brush assembly comprises a plurality of brush heads (3) slidably connected to one side of a telescopic plate (23); a telescopic groove for the brush heads (3) to slide is provided on the telescopic plate (23); and an elastic member is provided on one side of each brush head (3) located inside the telescopic plate (23).

5. The drill bit maintenance device for coal mining according to claim 4, characterized in that: The elastic member comprises a fixed block (31) fixedly mounted on the inner side wall of the telescopic plate (23); the fixed block (31) is connected to sliding rods (32) on all sides; the outer side of each sliding rod (32) is slidably connected to a sliding block (33); the outer side of each sliding rod (32) is sleeved with a return spring (34) located between the fixed block (31) and the sliding block (33); the side of each sliding block (33) close to the brush head (3) is connected to a support rod (35); and the side of each support rod (35) away from the sliding block (33) is connected to the brush head (3).

6. The drill bit maintenance device for coal mining according to claim 5, characterized in that: The cleaning brush assembly has the same structure as the oil brush assembly.

7. The drill bit maintenance device for coal mining according to claim 1, characterized in that: The rotating fixed assembly comprises a support platform (4) mounted on the inner side wall of the cleaning barrel (1) via a connecting frame, and the inner side of the support platform (4) is rotatably connected to a rotating platform (41), the top of the rotating platform (41) is slidably connected to clamping blocks (42) on all sides, a lifting platform (43) is arranged below the rotating platform (41), and the lifting platform (43) is connected to traction rods (44) on all sides, a traction groove is formed through the bottom of each clamping block (42) on the rotating platform (41), and a side of each traction rod (44) away from the lifting platform (43) is respectively connected to the bottom of the clamping block (42) through the traction groove, and a first driving member for driving the lifting platform (43) to move up and down is arranged at the bottom of the rotating platform (41).

8. The drill bit maintenance device for coal mining according to claim 7, characterized in that: The rotating fixing assembly further comprises a driven gear ring (45) connected to the outer bottom of the rotating platform (41); one side of the driven gear ring (45) is meshingly connected to a driving gear (46); the top of the driving gear (46) is rotatably connected to the bottom of a connecting frame; a second driving member for driving the driving gear (46) to rotate is mounted on the bottom of the connecting frame via a bracket.

9. The drill bit maintenance device for coal mining according to claim 1, characterized in that: The spray assembly comprises a guide plate (5) slidably connected to the top of the outer side of the cleaning bucket (1); a nozzle (51) is connected to the bottom of one side of the guide plate (5), and the nozzle (51) is located at the top of the cleaning bucket (1); a water pipe (52) is connected to the top of the nozzle (51), and the water pipe (52) is located above the guide plate (5), and one end of the water pipe (52) away from the nozzle (51) extends to the outside of the cleaning bucket (1); a moving block (53) is connected to the bottom of one side of the guide plate (5) away from the nozzle (51), and a third driving member for driving the moving block (53) to reciprocate is installed at the top of the outer side of the cleaning bucket (1).

10. The drill bit maintenance device for coal mining according to claim 1, characterized in that: The top and bottom of the cleaning bucket (1) are both funnel-shaped structures, and the funnels are arranged opposite to each other.

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