A drill bit maintenance device for coal mining

Abstract

The present invention relates to the field of drill bit maintenance, and 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 placement slots are provided through the circumference of the cleaning barrel, and the plurality of placement slots are evenly distributed along the axis of the cleaning barrel; wherein, a plurality of oil brush assemblies and cleaning brush assemblies are evenly distributed along the axis inside the cleaning barrel, and the oil brush assemblies and cleaning brush assemblies are staggered; a telescopic assembly is provided in each placement slot. Compared with the traditional extensive method of manually wiping the drill bit with a handheld brush, the drill bit maintenance device for coal mining provided by the present invention can process the drill bit in turn through the coordinated operation of a plurality of cleaning brush assemblies and an oil brush assembly, complete large-area cleaning and oiling at one time, greatly shorten the maintenance time of a single drill bit, and can fully meet the urgent need for frequent replacement of drill bits in large-scale mining operations, so that the drill bit can be put into the next round of operations more quickly, and ensure the continuity of the mining process.

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 key mining tools, are in harsh working environments for a long time. The humidity and dust in the mine are high. When the drill bit rotates at high speed to drill into the coal seam, it not only has to withstand huge impact and friction, but also easily absorbs various impurities, such as coal dust and rock particles, and its surface is quickly covered with dirt. The traditional drill bit maintenance method is relatively extensive, mostly 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. It often takes a lot of time for a worker to maintain a drill bit at a time, which is difficult to meet the needs of large-scale mining operations for frequent replacement of drill bits. Moreover, manual cleaning is difficult to ensure the thoroughness of cleaning. Dirt is easily left in some fine grooves and gaps of the drill bit. These dirt will aggravate the wear of the drill bit in subsequent use and shorten its service life.

[0003] Therefore, it is necessary to provide a new drill bit maintenance device for coal mining 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-mentioned problems.

[0005] The drill bit maintenance device for coal mining provided by the present invention comprises: a cleaning barrel; a plurality of placement grooves are provided through the circumference of the cleaning barrel, and the plurality of placement grooves 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 grooves, 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, and the drill bit can be clamped by the rotating fixing assembly; spray assemblies capable of spraying liquid are installed on the top of both sides of the cleaning barrel; the telescopic assembly comprises a bidirectional screw connected to the placement groove for rotation, and threaded blocks are threadedly connected to the outer sides of the bidirectional screw, the threaded blocks are slidably connected to the placement groove, a telescopic rod is connected to the same side of the two threaded blocks, and the telescopic rod is located on the inner side of the cleaning barrel, and a telescopic plate is commonly connected to one end of the two telescopic rods away from the threaded block.

[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 meshedly connected with an oil brush gear ring, and the oil brush gear ring is located on the outer side of the cleaning barrel, the outer side of each of the cleaning brush gears is meshedly connected with a cleaning brush gear ring, and the cleaning brush gear ring is located on the outer side of the cleaning barrel, support rings are installed on the top of the oil brush gear ring and the bottom of the cleaning brush gear ring on the outside of the cleaning barrel, 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 comprises a plurality of brush heads slidably connected to one side of a telescopic plate, a telescopic groove for the brush heads to slide is provided on the telescopic plate, and an elastic member is provided on one side of each brush head located inside the telescopic plate.

[0009] Preferably, the elastic member includes a fixed block fixedly mounted on the inner 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 one side close to the brush head, and each support rod is connected to the brush head on one 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 and fixing assembly includes a support table installed with the inner wall of the cleaning barrel through a connecting frame, and the inner side of the support table is rotatably connected with a rotating table, the top of the rotating table is slidably connected with clamping blocks on all sides, a lifting platform is arranged below the rotating table, and traction rods are connected on all sides of the lifting platform, and a traction groove is opened through the bottom of each clamping block on the rotating table, and one side of each traction rod away from the lifting platform is respectively connected to the bottom of the clamping block through a traction groove, and a first driving member for driving the lifting platform to move up and down is installed at the bottom of the rotating table.

[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 meshedly connected 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 barrel, 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 barrel, a water pipe is connected to the top of the nozzle, 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 barrel, a moving block is connected to the bottom of one side of the guide plate away from the nozzle, and a third driving member for driving the moving block to reciprocate is installed at the top of the outer side of the cleaning barrel.

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

[0015] Compared with the related art, the drill bit maintenance device for coal mining provided by the present invention has the following beneficial effects:

[0016] 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 for frequent replacement of drill bits in large-scale mining operations, allowing the drill bits to be put into the next round of operations more quickly, thereby ensuring the continuity of the mining process.

[0017] 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 and contraction 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 member, the brush head can automatically adjust according to the shape and surface state of the drill bit, thereby 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.

[0018] The present invention provides a rotating fixing component, and through the rotating fixing component, 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 to prevent the drill bit from being displaced when rotating at high speed or being impacted by external force, thereby ensuring the accuracy of operations such as cleaning and oiling; on the other hand, the active gear and the driven gear ring are meshed to achieve stable rotational drive of the drill bit, so that the drill bit can rotate at a uniform speed during maintenance, cooperate with the work of the oil brush component and the cleaning brush component, so that the cleaning liquid and lubricating oil are evenly distributed on the surface of the drill bit, thereby comprehensively improving the maintenance quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic structural diagram of a preferred embodiment of the drill bit maintenance device for coal mining provided by the present invention;

[0020] Figure 2 It is a structural schematic diagram of a cleaning brush assembly;

[0021] Figure 3 It is a structural schematic diagram of the telescopic component;

[0022] Figure 4 is a schematic diagram of the structure of the elastic member;

[0023] Figure 5 It is a structural schematic diagram of one of the rotating fixed components;

[0024] Figure 6It is a structural schematic diagram of the second rotating fixed component.

[0025] 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. Sliding rod; 33. Sliding block; 34. Reset spring; 35. Support rod; 4. Support table; 41. Rotating table; 42. Clamping block; 43. Lifting table; 44. Pull rod; 45. Driven gear ring; 46. Driving gear; 5. Guide plate; 51. Spray nozzle; 52. Water pipe; 53. Moving block. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with 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.

[0027] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0028] The embodiment of the present invention provides a drill bit maintenance device for coal mining, which comprises: a cleaning barrel 1; a plurality of placement grooves are provided through the circumference of the cleaning barrel 1, and the plurality of placement grooves are evenly distributed along the axis of the cleaning barrel 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 the cleaning brush assemblies are staggered; a telescopic assembly is provided in each placement groove, and the telescopic assembly can make the oil brush assembly and the cleaning brush assembly perform reciprocating telescopic motion to adapt to drill bits of different sizes; A rotating fixing component is provided at the bottom of the cleaning barrel 1, and the drill bit can be clamped by the rotating fixing component; spray components capable of spraying liquid are installed on the top of both sides of the cleaning barrel 1; the telescopic component includes 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, the thread blocks 21 are slidably connected to the placement groove, and 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 barrel 1, and the ends of the two telescopic rods 22 away from the thread blocks 21 are commonly connected to a telescopic plate 23.

[0029] It should be noted that: a plurality of through-type placement grooves are designed on the peripheral side of the cleaning barrel 1, and these placement grooves are arranged in an equidistant distribution 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 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 arranged in a staggered manner. Such a layout can ensure that when the drill bit is maintained, the drill bit is fully cleaned and oiled from different angles and positions, avoiding the occurrence of maintenance dead corners, 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 cooperation 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. They are located on the inner side of the cleaning barrel 1. Through the telescopic plate 23 connected to the ends of the two telescopic rods 22 away from the threaded blocks 21, the oil brush assembly and the cleaning brush assembly are effectively supported and driven, so that they can perform precise reciprocating telescopic motion according to drill bits of different sizes, ensuring that both large and small drill bits can be properly cleaned and maintained in the device. In addition, the rotating fixed assembly at the bottom of the cleaning barrel 1 provides a guarantee for the stable clamping of the drill bit during the maintenance process. During maintenance operations such as cleaning and oiling, the rotating fixed assembly can tightly clamp the drill bit to prevent it from being displaced or shaken when rotating at high speed or under the action of external forces, thereby ensuring the smooth progress of the maintenance operation and the consistency of the maintenance effect. At the same time, the spraying assemblies located on the top of both sides of the cleaning barrel 1 are responsible for timely providing the drill bit with the required cleaning liquid or lubricating oil and other liquid media during the maintenance process. 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, which further improves the efficiency and quality of drill bit maintenance, extends the service life of the drill bit, and provides strong support for the efficient and safe development of coal mining.

[0030] 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 screw rods 2, 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, and support rings 28 are installed on the outer side 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, and multiple hand cranks 29 are connected to the outer sides of the oil brush gear ring 26 and the cleaning brush gear ring 27.

[0031] It should be noted that: for the outer side of the bidirectional screw 2, the structural design of the oil brush gear 24 and the cleaning brush gear 25 is added, and the oil brush gear 24 and the cleaning brush gear 25 are respectively installed on the central side 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. This layout arrangement lays the foundation for the subsequent transmission and drive mechanism. The outer side of each oil brush gear 24 is meshed with the oil brush gear ring 26, and the oil brush gear ring 26 is located on the outer side of the cleaning barrel 1, which means that when the oil brush gear ring 26 rotates, through the meshing relationship with multiple oil brush gears 24, it can drive multiple oil brush gears 24 to rotate at the same time, thereby driving the oil brush assembly connected thereto to work. Similarly, the outer side of each cleaning brush gear 25 is meshed with the cleaning brush gear ring 27, and the cleaning brush gear ring 27 is located on the outer side of the cleaning barrel 1. When the cleaning brush gear ring 27 rotates, it will drive the cleaning brush gear 25 to rotate, so that the cleaning brush assembly starts to operate. Support rings 28 are installed on the outside 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. The main function of the support ring 28 is to provide support and a stable installation position for the oil brush toothed ring 26 and the cleaning brush toothed ring 27 to ensure that they will not deviate or shake during the rotation process, thereby ensuring the stability and reliability of the entire transmission system. Multiple hand cranks 29 are connected to the outside of the oil brush toothed ring 26 and the cleaning brush toothed ring 27. The existence of the hand cranks 29 provides a manual operation method for the operator. The operator can drive the rotation of the oil brush toothed ring 26 or the cleaning brush toothed ring 27 by shaking the hand cranks 29.

[0032] In an embodiment of the present invention, the oil brush assembly includes a plurality of brush heads 3 slidably connected to one side of a telescopic plate 23, a telescopic groove for sliding the brush heads 3 is provided on the telescopic plate 23, one side of each brush head 3 is provided with an elastic member inside the telescopic plate 23, the elastic member includes a fixed block 31 fixedly mounted on the inner side wall of the telescopic plate 23, sliding rods 32 are connected to the four sides of the fixed block 31, a slider 33 is slidably connected to the outer side of each sliding rod 32, a return spring 34 is sleeved on the outer side of each sliding rod 32 between the fixed block 31 and the slider 33, a support rod 35 is connected to the side of each slider 33 close to the brush head 3, and a side of each support rod 35 away from the slider 33 is connected to the brush head 3, and the cleaning brush assembly has the same structure as that in the above-mentioned oil brush assembly.

[0033] It should be noted that the structural design of the oil brush assembly is to achieve efficient oiling operation on the drill bit used for coal mining. The oil brush assembly includes a plurality of brush heads 3 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 arranged in the telescopic plate 23 on one side of each brush head 3 plays an important role in buffering and regulating. The core component of the elastic member includes a fixed block 31 installed on the inner wall of the telescopic plate 23, a sliding rod 32 connected around the fixed block 31, a sliding block 33 slidably connected to the outer side of the sliding rod 32, and a reset spring 34 is sleeved between the fixed block 31 and the sliding block 33 on the outer side of the sliding rod 32. When the brush head 3 is subjected to external pressure, the reset spring 34 will be compressed and deformed, so that the sliding block 33 slides along the sliding rod 32, and the support rod 35 transmits the movement of the sliding block 33 to the brush head 3, so that the brush head 3 produces corresponding telescopic movement. When handling drill bits of different sizes, since the shapes and sizes of the drill bits may be different, the brush head 3 will be subjected to different pressures when in contact with the drill bit. The elastic member can make the brush head 3 automatically adjust its position according to the pressure, ensuring that the brush head 3 can fit closely to the surface of the drill bit, thereby achieving uniform oiling of the surface of the drill bit, and avoiding uneven oiling or missing areas caused by the 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 reset spring 34 can play a buffering role, avoiding damage to the brush head 3 due to rigid collision, while also protecting the telescopic plate 23 and other components, and 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 telescopic function and adaptability. When the brush head 3 of the cleaning brush assembly contacts the surface of the drill bit, due to the presence of the elastic member, the cleaning brush can be automatically adjusted according to the shape and surface state 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 the damage to the cleaning brush and the drill bit caused by rigid collision.

[0034] In an embodiment of the present invention, a rotating and fixing assembly includes a support table 4 installed with an inner side wall of the cleaning barrel 1 through a connecting frame, and a rotating table 41 is rotatably connected to the inner side of the support table 4, and clamping blocks 42 are slidably connected to the top and sides of the rotating table 41, and a lifting platform 43 is arranged below the rotating table 41, and traction rods 44 are connected to the four sides of the lifting platform 43. A traction groove is provided through the bottom of each clamping block 42 on the rotating table 41, and each traction rod 44 is connected to the bottom of the clamping block 42 through the traction groove on the side away from the lifting platform 43, and a first driving member for driving the lifting platform 43 to move up and down is installed at the bottom of the rotating table 41, and the rotating and fixing assembly also includes a driven gear ring 45 connected to the outer bottom of the rotating table 41, and a driving gear 46 is meshed and connected to one side of the driven gear ring 45, and the top of the driving gear 46 is rotatably connected to the bottom of the connecting frame, and a second driving member for driving the driving gear 46 to rotate is installed at the bottom of the connecting frame through a bracket.

[0035] It should be noted that the rotating fixed assembly is a key part of the drill bit maintenance device for coal mining, which is mainly used to clamp and rotate the drill bit to ensure the stability and position control of the drill bit during maintenance such as cleaning and oiling. The rotating fixed assembly includes a support table 4 installed on the inner wall of the cleaning barrel 1 through a connecting frame, and the support table 4 provides a stable support foundation for the entire rotating fixed assembly. The rotating table 41 that is rotatably connected to the inner side of the support table 4 is the core component of the rotation, which provides the possibility for subsequent drill bit rotation operations. The top of the rotating table 41 is slidably connected with clamping blocks 42 on all sides, and 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 table 41, prevent the drill bit from being displaced or shaken during maintenance, and ensure the safety and reliability of maintenance operations. The lifting platform 43 located below the rotating table 41 is the key to realizing the action of the clamping block 42. The lifting platform 43 is connected with traction rods 44 around it. The rotating platform 41 is provided with traction grooves for the bottom of each clamping block 42. The side of each traction rod 44 away from the lifting platform 43 is connected to the bottom of the clamping block 42 through the traction groove. When the lifting platform 43 moves up and down, the traction rod 44 will move in the traction groove, thereby driving the clamping block 42 to slide along the top of the rotating platform 41 to achieve the clamping or loosening action of the drill bit. The first driving member installed at the bottom of the rotating platform 41 is used to drive the lifting platform 43 to move up and down, which is the power source for realizing the action of the clamping block 42. By controlling the operation of the first driving member, the position of the lifting platform 43 can be accurately controlled, and then the opening and closing state of the clamping block 42 can be controlled to adapt to drill bits of different diameters and ensure the effective clamping of the drill bit. The first driving member is an electric push rod. The rotating and fixing assembly also includes a driven gear ring 45 connected to the outer bottom of the rotating platform 41, a driving gear 46 meshed and connected to one side of the driven gear ring 45, and a second driving member installed at the bottom of the connecting frame through a bracket to drive the driving gear 46 to rotate. When the second driving member drives the active gear 46 to rotate, due to the meshing relationship between the active gear 46 and the driven gear ring 45, the driven gear ring 45 will be driven to rotate, and then the rotating table 41 will be driven 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 a suitable 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, and 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.

[0036] In an embodiment of the present invention, the spray assembly includes 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, 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.

[0037] 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 outer top of the cleaning barrel 1. The outer top 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 mobility, so that it can flexibly move its position on the outer top 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 the 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, and evenly sprinkle it on the surface of the drill bit, providing a liquid medium for maintenance operations such as cleaning and lubrication. The top of the nozzle 51 is connected with a water pipe 52, which is located above the guide plate 5, and the end of the water pipe 52 away from the nozzle 51 extends to the outside of the cleaning bucket 1. The water pipe 52 serves as a liquid delivery channel, connecting the external liquid source with the nozzle 51, ensuring a continuous liquid supply, so that the nozzle 51 can spray uninterruptedly. The bottom of the side of the guide plate 5 away from the nozzle 51 is connected with a moving block 53, which is a key connecting component for realizing the movement of the guide plate 5. 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. The third driving member is an electric push rod, and its main function is to drive the moving block 53 to reciprocate, thereby driving the guide plate 5 and the nozzle 51 to move along the outer top of the cleaning bucket 1. It can switch between the two nozzles 51. The two spraying assemblies are each equipped with a water pipe, and the two water pipes 52 respectively undertake different important functions. One of the water pipes 52 is specifically used to connect to a cleaning liquid source, which provides the cleaning liquid required for cleaning to the nozzle 51. When the cleaning liquid enters the nozzle 51 through the water pipe 52, the nozzle 51 will spray the cleaning liquid evenly on the drill bit in the cleaning bucket 1 to achieve efficient cleaning of the drill bit. The cleaning liquid plays a key role in removing dirt and impurities on the surface of the drill bit during the maintenance of the drill bit for coal mining. These dirt and impurities may accumulate on the surface of the drill bit during the mining operation, which will affect the performance and service life of the drill bit. The cleaning liquid provided by the water pipe can ensure the cleanliness of the drill bit surface and create good conditions for subsequent maintenance steps. The other water pipe 52 is used to connect to an oil source. When the oil enters the corresponding nozzle 51 through this water pipe 52, the nozzle 51 will spray the oil on the cleaned drill bit to provide the necessary lubrication for the drill bit. In coal mining operations, good lubrication can significantly reduce the friction of the drill bit during operation, reduce wear, extend the service life of the drill bit, and improve its work efficiency. Furthermore, 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.

[0038] 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.

[0039] It should be noted that the funnel-shaped structure at the top reduces the splashing of liquid, and secondly, the funnel-shaped structure at the bottom facilitates the discharge of liquid. After the cleaning and oiling of the drill bit is completed, the liquid remaining in the cleaning bucket 1 needs to be discharged in time, and the funnel-shaped structure at the bottom can make the liquid quickly gather to the lowest point, so that it is easy to be discharged through the drain port or the oil drain port.

[0040] The working principle of the drill bit maintenance device for coal mining provided by the present invention is as follows: first, the drill bit for coal mining that needs maintenance is placed in the cleaning bucket 1, and the drill bit is clamped by the rotating fixing assembly. The specific operation is to start the first driving member in the rotating fixing assembly to move the lifting platform 43 up and down, and the lifting platform 43 drives the traction rod 44 to move in the traction groove of the rotating platform 41, and then the traction clamping block 42 slides along the top of the rotating platform 41 to clamp the drill bit. At this time, the drill bit is firmly fixed on the rotating platform 41 to ensure that it will not be displaced or shaken during subsequent maintenance operations.

[0041] Secondly, the water pipe 52 connected to the cleaning liquid source is opened, and the cleaning liquid is transported to the nozzle 51 through the water pipe 52. At the same time, the third driving member is started to make the moving block 53 on the guide plate 5 start to reciprocate, driving the nozzle 51 to slide on the outer top of the cleaning barrel 1, thereby realizing the position adjustment of the nozzle 51. In this way, the nozzle 51 will spray the cleaning liquid on the drill bit to wash the dirt and impurities on the surface of the drill bit. During the cleaning process, the cleaning brush tooth ring 27 can be driven to rotate by rotating the hand crank 29. The rotation of the cleaning brush tooth ring 27 will drive the cleaning brush gear 25 meshing therewith to rotate, and the cleaning brush gear 25 will then drive the corresponding structure on the outer side of the bidirectional screw 2 to move. When the bidirectional screw 2 rotates, due to the threaded connection on both sides of its outer side, the threaded block 21 will slide in the placement groove, thereby driving the telescopic rod 22 and the telescopic plate 23 to move. The brush head 3 of the cleaning brush assembly on the telescopic plate 23 will telescope 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, so that the slider 33 slides along the slide rod 32, and the support rod 35 transmits the movement of the slider 33 to the brush head 3, so that the brush head 3 will produce corresponding expansion and contraction. 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.

[0042] Then, when the driving gear 46 is driven to rotate by the second driving member, due to the meshing relationship between the driving gear 46 and the driven gear ring 45, the driven gear ring 45 is driven to rotate, and then the rotating table 41 is driven to rotate, so that the drill bit on the rotating table 41 rotates, and the drill bit surface is fully cleaned in cooperation with the brush head 3.

[0043] Next, 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 prior art. For details, please refer to the patent content with publication number CN215887651U. Place the drying device on the top of the cleaning bucket 1 and enable the drying device to dry the drill bit. The fan in the drying device is responsible for driving the air to flow inside the cleaning bucket 1, so that the hot air can be evenly distributed around the drill bit, and the humid air containing moisture is discharged out of the cleaning bucket 1, while introducing fresh dry air.

[0044] Subsequently, the cleaning liquid water pipe 52 is closed, and the water pipe 52 connected to the oil source is opened to transport 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 due to collision.

[0045] Finally, when the cleaning and oiling operations are completed, each driving member is turned off, the clamping block 42 of the rotating fixing assembly is released, and the maintained drill bit is taken out of the cleaning barrel 1.

[0046] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0047] 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 specification 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: Cleaning 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 bucket (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 bucket (1); The telescopic assembly comprises a bidirectional screw (2) rotatably connected to the placement groove, and both sides of the outer side of the bidirectional screw (2) are threadedly connected to thread blocks (21), the thread blocks (21) are slidably connected to the placement groove, and the same side of the two thread blocks (21) are connected to a telescopic rod (22), 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); An oil brush gear (24) and a cleaning brush gear (25) are respectively installed on one side of the center of the outer sides 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 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 with a plurality of hand cranks (29).

2. 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).

3. The drill bit maintenance device for coal mining according to claim 2, 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 with sliding rods (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 sleeved with a return spring (34) located between the fixed block (31) and the slider (33); the side of each slider (33) close to the brush head (3) is connected with a support rod (35); and the side of each support rod (35) away from the slider (33) is connected to the brush head (3).

4. The drill bit maintenance device for coal mining according to claim 3, characterized in that: The cleaning brush assembly has the same structure as the oil brush assembly.

5. 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 wall of the cleaning bucket (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 provided through the bottom of each clamping block (42) on the rotating platform (41), and the 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).

6. The drill bit maintenance device for coal mining according to claim 5, characterized in that: The rotating fixing assembly also includes a driven gear ring (45) connected to the outer bottom of the rotating platform (41), one side of the driven gear ring (45) is meshedly connected with a driving gear (46), the top of the driving gear (46) is rotatably connected to the bottom of the connecting frame, and a second driving member for driving the driving gear (46) to rotate is installed at the bottom of the connecting frame through a bracket.

7. 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).

8. The drill bit maintenance device for coal mining according to claim 7, 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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