Underground coal mine electric locomotive transportation method and system

Abstract

The invention provides an underground coal mine electric locomotive transportation system. The underground coal mine electric locomotive transportation system comprises an electric locomotive body, two rails, a cleaning assembly, a limiting assembly, a smearing assembly, a conveying device and a lifting device. According to the coal mine underground electric locomotive transportation system, the cleaning brush of the cleaning assembly makes contact with the surface of the rail, coal cinder and sundries on the surface of the rail can be removed in real time along with running of the electric locomotive body, it is avoided that abrasion of the rail is aggravated by the impurities, and the manual cleaning cost is reduced; the smearing assembly evenly smears a lubricant conveyed by the conveying device to the surface of the track through smearing cotton, and in cooperation with pretreatment of the cleaning assembly, track abrasion can be effectively reduced, the service life of the track is prolonged, and the manual maintenance frequency is reduced. The circular limiting block of the limiting assembly is attached to the inner side wall of the rail, abutting limiting is provided when the electric locomotive body deviates transversely, derailing is prevented, and the driving safety is improved.

Description

Technical Field

[0001] The present invention relates to the field of transportation equipment, and in particular to a method and system for transporting electric locomotives in underground coal mines. Background Art

[0002] In underground transportation operations in coal mines, electric locomotives rely on laid tracks to move and are the core equipment for underground material transportation.

[0003] However, the existing electric locomotive transportation system has the following problems: When electric locomotives run on tracks for a long time, the track surface is easily worn due to friction, and regular manual maintenance is required. This not only increases labor costs but also affects transportation efficiency due to untimely maintenance. The underground environment is complex, and impurities such as coal slag and gravel are easily accumulated on the track surface. Existing electric locomotives lack real-time cleaning equipment. Impurities can aggravate the wear of the track and locomotive components, and even cause the locomotive to become unstable, posing a safety hazard. During the operation of electric locomotives, lateral deviation may occur due to uneven load or uneven track. The existing system's limiting structure is not stable enough, which easily leads to the risk of derailment.

[0004] Therefore, it is necessary to provide a system for electric locomotive transportation in coal mines to solve the above technical problems. Summary of the Invention

[0005] The present invention provides a system for electric locomotive transportation in coal mines, which solves the problems of existing electric locomotive transportation systems in coal mines, such as track wear requiring regular manual maintenance, impurities on the track surface being unable to be cleaned in real time, and easy deviation of the electric locomotive during travel.

[0006] In order to solve the above technical problems, the present invention provides a system for electric locomotive transportation in coal mines, comprising: an electric locomotive body, two tracks, a cleaning component, a limiting component, a smearing component, a conveying device and a lifting device; The electric locomotive body is adapted to be arranged on the two rails; The cleaning assembly is arranged at one end of the electric locomotive body; The limiting components are arranged on both sides of the cleaning component; The smear assembly is arranged at the other end of the electric locomotive body, and the smear assembly includes two U-shaped connecting sleeves, two smear cottons, two connecting heads and a U-shaped tube. The two smear cottons are respectively adhered to the inner walls of the two U-shaped connecting sleeves, the two connecting heads are respectively installed on the surfaces of the two U-shaped sleeves, and the U-shaped tube is connected between the two connecting heads. The conveying device is arranged on one side of the surface of the electric locomotive body; The lifting device is arranged on the surface of the electric locomotive body.

[0007] Preferably, the cleaning assembly includes a connecting bracket, a circular connecting rod, two U-shaped fixing sleeves and two cleaning brushes; one end of the connecting bracket is connected to the bottom of the electric locomotive body, and the other end is fixed to the circular connecting rod, the two U-shaped fixing sleeves are respectively connected to the two ends of the circular connecting rod, and the two cleaning brushes are respectively fixed to the bottom of the U-shaped fixing sleeve and in contact with the track surface.

[0008] Preferably, the limiting assembly includes a bracket and a circular limiting block; the bracket is fixed to one side of the U-shaped fixing sleeve, the circular limiting block is installed at one end of the bracket, and the outer wall of the circular limiting block is in contact with the inner wall of the track.

[0009] Preferably, the conveying device includes a box body, a pump body and two conveying pipes. The box body is arranged on the top of the electric locomotive body, the pump body is installed on one side of the box body, and the two conveying pipes are respectively connected to the output end of the pump body and the other end is connected to the U-shaped tube.

[0010] Preferably, the lifting device includes a hydraulic telescopic part, a fixing frame and a connecting rod, the hydraulic telescopic part is installed on one side of the surface of the electric locomotive body, the fixing frame is connected to the top of the hydraulic telescopic part, and the connecting rod is connected to one side of the fixing frame and connected to the two U-shaped connecting sleeves.

[0011] Preferably, at least two hydraulic telescopic members are provided and are symmetrically distributed on both sides of the box.

[0012] Preferably, the bracket is a U-shaped structure, the circular limit block is made of elastic rubber, and the fitting surface between the circular limit block and the inner wall of the track is arc-shaped.

[0013] Preferably, a flushing assembly is provided at the bottom of the electric locomotive body, and the flushing assembly includes an air pump, a first pipe, a flushing head and a second pipe; the air pump is installed at the bottom of the electric locomotive body, the flushing head is connected to the output end of the air pump through the first pipe and faces the track surface, and one end of the second pipe is connected to the air pump.

[0014] Preferably, support components are provided on both sides of the surface of the electric locomotive body, and the support components include a support block, a mounting frame and a fixing bolt. The mounting frame is fixed to the side of the electric locomotive body through the fixing bolt, and the support block is rotatably connected to the mounting frame through a rotating shaft, and the support block is in contact with the bottom of the track.

[0015] A method for electric locomotive transportation in a coal mine, comprising the following steps: S1. When the electric locomotive body is traveling along the track, the cleaning component is started to clean the track surface, and the material is transported to the smearing component through the conveying device, and the smearing component smears the material on the track surface. During the driving process, the lateral displacement of the electric locomotive body is limited by the limit component, and the height of the conveying device is adjusted by the lifting device to meet the working conditions. S2. The cleaning process of the cleaning assembly includes: the connecting bracket moves with the electric locomotive body, and the circular connecting rod drives the U-shaped fixing sleeve and the cleaning brush to move synchronously, and the cleaning brush rubs against the track surface to remove coal slag and debris; S3. The material coating process of the coating component includes: the pump body of the conveying device conveys the material in the box through the conveying pipe to the U-shaped pipe, and then enters the U-shaped connecting sleeve through the connector. The coating cotton absorbs the material and evenly coats it on the track surface; S4. The limiting process of the limiting assembly includes: when the electric locomotive body is moving, the bracket drives the circular limiting block to slide along the side of the track. When the electric locomotive body deviates laterally, the circular limiting block contacts the side of the track to limit the deviation range; S5. The contact pressure between the cleaning brush of the cleaning assembly and the rail surface can be adjusted by adjusting the position of the U-shaped fixing sleeve on the circular connecting rod; S6. The fit between the smear cotton of the smearing component and the track surface can be adjusted by replacing smear cotton of different thicknesses to control the amount of material applied.

[0016] Compared with related technologies, the coal mine underground electric locomotive transportation system provided by the present invention has the following beneficial effects: The present invention provides a system for electric locomotive transportation in coal mines. The cleaning brush of the cleaning assembly contacts the track surface and can remove coal slag and debris on the track surface in real time as the electric locomotive body moves, thereby preventing impurities from aggravating track wear and reducing manual cleaning costs. The smearing component evenly applies the lubricant delivered by the conveying device to the rail surface through the smearing cotton. Combined with the pretreatment of the cleaning component, it can effectively reduce rail wear, extend the service life of the rail, and reduce the frequency of manual maintenance; The circular limit block of the limit assembly fits into the inner wall of the track, providing interference limit when the locomotive body deviates laterally, preventing derailment and improving driving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic structural diagram of a first embodiment of a system for electric locomotive transportation in underground coal mines provided by the present invention; Figure 2 for Figure 1 An enlarged schematic diagram of part A is shown; Figure 3 for Figure 1 A schematic diagram of the three-dimensional structure of the electric locomotive shown; Figure 4 for Figure 3 An enlarged schematic diagram of part B is shown; Figure 5 A schematic structural diagram of a second embodiment of a system for electric locomotive transportation in underground coal mines provided by the present invention; Figure 6 This is a schematic structural diagram of a third embodiment of a coal mine underground electric locomotive transportation system provided by the present invention.

[0018] Numbers in the figure: 1, electric locomotive body; 2, track; 3. Cleaning assembly; 31. Connecting bracket; 32. Round connecting rod; 33. U-shaped fixing sleeve; 34. Cleaning brush; 4. Limiting assembly; 41. Bracket; 42. Circular limiting block; 5. Applicator assembly; 51. U-shaped connecting sleeve; 52. Applicator cotton; 53. Connector; 54. U-shaped tube; 6. Conveying device; 61. Box body; 62. Pump body; 63. Conveying pipe; 7. Lifting device; 71. Hydraulic telescopic member; 72. Fixed frame; 73. Connecting rod; 8. Flushing assembly; 81. Air pump; 82. First pipeline; 83. Flushing head; 84. Second pipeline; 9. Support assembly; 91. Support block; 92. Mounting bracket; 93. Fixing bolt. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments. First embodiment

[0020] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 ,in, Figure 1 A schematic structural diagram of a first embodiment of a system for electric locomotive transportation in underground coal mines provided by the present invention; Figure 2 for Figure 1 An enlarged schematic diagram of part A is shown; Figure 3 for Figure 1 A schematic diagram of the three-dimensional structure of the electric locomotive shown; Figure 4 for Figure 3 The enlarged schematic diagram of part B is shown. A system for electric locomotive transportation in an underground coal mine comprises: an electric locomotive body 1, two tracks 2, a cleaning component 3, a limiting component 4, a coating component 5, a conveying device 6, and a lifting device 7; The electric locomotive body 1 is adapted to be arranged on the two rails 2; The cleaning assembly 3 is arranged at one end of the electric locomotive body 1; The limiting assembly 4 is arranged on both sides of the cleaning assembly 3; The smear assembly 5 is provided at the other end of the electric locomotive body 1, and the smear assembly 5 includes two U-shaped connecting sleeves 51, two smear cottons 52, two connecting heads 53 and a U-shaped tube 54. The two smear cottons 52 are respectively bonded to the inner walls of the two U-shaped connecting sleeves 51, the two connecting heads 53 are respectively installed on the surfaces of the two U-shaped sleeves 51, and the U-shaped tube 54 is connected between the two connecting heads 53; The conveying device 6 is arranged on one side of the surface of the electric locomotive body 1; The lifting device 7 is provided on the surface of the electric locomotive body 1 .

[0021] The cleaning assembly 3 includes a connecting bracket 31, a circular connecting rod 32, two U-shaped fixing sleeves 33 and two cleaning brushes 34; one end of the connecting bracket 31 is connected to the bottom of the electric locomotive body 1, and the other end is fixed to the circular connecting rod 32, the two U-shaped fixing sleeves 33 are respectively connected to the two ends of the circular connecting rod 32, and the two cleaning brushes 34 are respectively fixed to the bottom of the U-shaped fixing sleeve 33 and in contact with the surface of the track 2.

[0022] The U-shaped fixing sleeve 33 with the cleaning brush 34 enables the electric locomotive body 1 to wipe the surface of the track 2 of impurities in advance when moving on the track 2, making it easier for the smearing component 5 to apply lubricating oil to the track 2.

[0023] The limiting assembly 4 includes a bracket 41 and a circular limiting block 42; the bracket 41 is fixed to one side of the U-shaped fixing sleeve 33, and the circular limiting block 42 is installed at one end of the bracket 41, and the outer wall of the circular limiting block 42 is in contact with the inner wall of the track 2.

[0024] The conveying device 6 includes a box body 61, a pump body 62 and two conveying pipes 63. The box body 61 is arranged on the top of the electric locomotive body 1, and the pump body 62 is installed on one side of the box body 61. The two conveying pipes 63 are respectively connected to the output end of the pump body 62, and the other end is connected to the U-shaped tube 54.

[0025] A filling pipe is installed on the top of the box body 61 to facilitate the filling of lubricating oil into the interior of the box body 61. The interior of the U-shaped connecting sleeve 51 is hollow to store the lubricating oil. At the same time, a plurality of oil outlet holes are opened on the inner wall of the U-shaped connecting sleeve 51 to facilitate the lubricating oil inside the U-shaped connecting sleeve 51 to evenly soak the smear cotton 52.

[0026] The lifting device 7 includes a hydraulic telescopic part 71, a fixing frame 72 and a connecting rod 73. The hydraulic telescopic part 71 is installed on one side of the surface of the electric locomotive body 1, the fixing frame 72 is connected to the top of the hydraulic telescopic part 71, and the connecting rod 73 is connected to one side of the fixing frame 72 and connected to the two U-shaped connecting sleeves 51.

[0027] The application assembly 5 can be adjusted by using the hydraulic telescopic member 71 , and can be adjusted to be away from the track 2 when not in use.

[0028] There are at least two hydraulic telescopic members 71 , which are symmetrically distributed on both sides of the box body 61 .

[0029] The bracket 41 is a U-shaped structure, the circular limiting block 42 is made of elastic rubber, and the contact surface between the circular limiting block 42 and the inner wall of the track 2 is arc-shaped.

[0030] Compared with related technologies, the coal mine underground electric locomotive transportation system provided by the present invention has the following beneficial effects: The present invention provides a system for electric locomotive transportation in coal mines. The cleaning brush 34 of the cleaning assembly 3 contacts the surface of the track 2. As the electric locomotive body 1 travels, coal slag and debris on the track surface can be removed in real time, thereby preventing impurities from aggravating track wear and reducing manual cleaning costs. The smearing component 5 evenly applies the lubricant delivered by the conveying device 6 to the surface of the track 2 through the smearing cotton 52. In combination with the pretreatment of the cleaning component 3, it can effectively reduce track wear, extend the service life of the track, and reduce the frequency of manual maintenance; The circular limiting block 42 of the limiting assembly 4 is in contact with the inner wall of the track 2, providing interference and limiting when the electric locomotive body 1 deviates laterally, thereby preventing derailment and improving driving safety. Second embodiment

[0031] Please refer to the figure Figure 5 Based on the first embodiment of this application, which provides a system for electric locomotive transportation in underground coal mines, the second embodiment of this application provides another system for electric locomotive transportation in underground coal mines. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0032] Specifically, the difference of the system for electric locomotive transportation in coal mines provided by the second embodiment of the present application is that the system for electric locomotive transportation in coal mines also includes a flushing component 8, which is arranged at the bottom of the electric locomotive body 1, and the flushing component 8 includes an air pump 81, a first pipe 82, a flushing head 83 and a second pipe 84; the air pump 81 is installed at the bottom of the electric locomotive body 1, and the flushing head 83 is connected to the output end of the air pump 81 through the first pipe 82 and faces the surface of the track 2, and one end of the second pipe 84 is connected to the air pump 81.

[0033] The flushing head 83 is a circular pipe with multiple air outlets. The length of the circular pipe can cover the distance between the two rails 2, making it easy to remove impurities on the surfaces of the two rails 2.

[0034] The working principle of the electric locomotive transportation system for coal mines provided by the present invention is as follows: During use, when the air pump 81 generates high-pressure airflow, the first pipe 82 and the second pipe 84 convey the airflow to the flushing head 83, and the flushing head 83 can flush the track 2 to remove debris attached thereto.

[0035] Compared with related technologies, the coal mine underground electric locomotive transportation system provided by the present invention has the following beneficial effects: The present invention provides a system for electric locomotive transportation in coal mines. The flushing head 83 of the flushing assembly 8 performs secondary cleaning on the surface of the track 2 through the first pipe 82, and the second pipe 84 can clean the cleaning brush 34 to ensure the continued effectiveness of the cleaning assembly 3. Third embodiment

[0036] Please refer to Figure 6 Based on the first embodiment of this application, which provides a system for electric locomotive transportation in underground coal mines, the third embodiment of this application provides another system for electric locomotive transportation in underground coal mines. The third embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the third embodiment will not affect the independent implementation of the first embodiment.

[0037] Specifically, the difference of the system for electric locomotive transportation in coal mines provided by the third embodiment of the present application is that the system for electric locomotive transportation in coal mines also includes two support assemblies 9, and the two support assemblies 9 are respectively arranged on both sides of the surface of the electric locomotive body 1, and the support assembly 9 includes a support block 91, a mounting frame 92 and a fixing bolt 93. The mounting frame 92 is fixed to the side of the electric locomotive body 1 by the fixing bolt 93, and the support block 91 is rotatably connected to the mounting frame 92 through a rotating shaft, and the support block 91 is in contact with the bottom of the track 2.

[0038] The mounting frame 92 is fixed to the bottom of the electric locomotive body 1, and the support block 91 is installed on the mounting frame 92 through the fixing bolt 93, and the support block 91 contacts the bottom of the track 2, which can enhance the contact stability between the electric locomotive body 1 and the track 2 and improve the safety of the electric locomotive during operation.

[0039] Compared with related technologies, the coal mine underground electric locomotive transportation system provided by the present invention has the following beneficial effects: The present invention provides a system for electric locomotive transportation in coal mines, in which the support block 91 of the support assembly 9 contacts the bottom of the track 2, thereby increasing the stability of the electric locomotive body 1 by increasing the contact area, and is particularly suitable for heavy-load transportation scenarios.

[0040] A method for electric locomotive transportation in a coal mine, comprising the following steps: S1. When the electric locomotive body 1 is traveling along the track 2, the cleaning component 3 is started to clean the surface of the track 2, and the material is transported to the smearing component 5 through the conveying device 6. The smearing component 5 smears the material on the surface of the track 2. During the driving process, the lateral displacement of the electric locomotive body 1 is limited by the limit component 4, and the height of the conveying device 6 is adjusted by the lifting device 7 to meet the working conditions. S2, the cleaning process of the cleaning assembly 3 includes: the connecting bracket 31 moves with the electric locomotive body 1, and the circular connecting rod 32 drives the U-shaped fixing sleeve 33 and the cleaning brush 34 to move synchronously, and the cleaning brush 34 rubs against the surface of the track 2 to remove coal slag and debris; S3, the material smearing process of the smearing assembly 5 includes: the pump body 62 of the conveying device 6 conveys the material in the box 61 to the U-shaped tube 54 through the conveying pipe 63, and enters the U-shaped connecting sleeve 51 through the connector 53, and the smearing cotton 52 absorbs the material and evenly smears it on the surface of the track 2; S4, the limiting process of the limiting assembly 4 includes: when the electric locomotive body 1 is moving, the bracket 41 drives the circular limiting block 42 to slide along the side of the track 2. When the electric locomotive body 1 deviates laterally, the circular limiting block 42 contacts the side of the track 2 to limit the deviation range; S5. The contact pressure between the cleaning brush 34 of the cleaning assembly 3 and the surface of the track 2 can be adjusted by adjusting the position of the U-shaped fixing sleeve 33 on the circular connecting rod 32; S6. The degree of fit between the smear cotton 52 of the smearing component 5 and the surface of the track 2 can be adjusted by replacing the smear cotton 52 with different thicknesses to control the amount of material applied.

[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 system for electric locomotive transportation in underground coal mines, characterized in that: include: The electric locomotive body, two tracks, a cleaning assembly, a limiting assembly, a coating assembly, a conveying device and a lifting device; The electric locomotive body is adapted to be arranged on the two rails; The cleaning assembly is arranged at one end of the electric locomotive body; The limiting components are arranged on both sides of the cleaning component; The smear assembly is arranged at the other end of the electric locomotive body, and the smear assembly includes two U-shaped connecting sleeves, two smear cottons, two connecting heads and a U-shaped tube. The two smear cottons are respectively adhered to the inner walls of the two U-shaped connecting sleeves, the two connecting heads are respectively installed on the surfaces of the two U-shaped sleeves, and the U-shaped tube is connected between the two connecting heads. The conveying device is arranged on one side of the surface of the electric locomotive body; The lifting device is arranged on the surface of the electric locomotive body.

2. The system for electric locomotive transportation in underground coal mines according to claim 1, characterized in that: The cleaning assembly includes a connecting bracket, a circular connecting rod, two U-shaped fixing sleeves and two cleaning brushes; one end of the connecting bracket is connected to the bottom of the electric locomotive body, and the other end is fixed to the circular connecting rod, the two U-shaped fixing sleeves are respectively connected to the two ends of the circular connecting rod, and the two cleaning brushes are respectively fixed to the bottom of the U-shaped fixing sleeves and in contact with the track surface.

3. The system for electric locomotive transportation in underground coal mines according to claim 2, characterized in that: The limiting assembly includes a bracket and a circular limiting block; the bracket is fixed to one side of the U-shaped fixing sleeve, the circular limiting block is installed at one end of the bracket, and the outer wall of the circular limiting block is in contact with the inner wall of the track.

4. The system for electric locomotive transportation in underground coal mines according to claim 1, characterized in that: The conveying device includes a box body, a pump body and two conveying pipes. The box body is arranged on the top of the electric locomotive body, and the pump body is installed on one side of the box body. The two conveying pipes are respectively connected to the output end of the pump body and the other end is connected to the U-shaped tube.

5. The system for electric locomotive transportation in underground coal mines according to claim 1, characterized in that: The lifting device includes a hydraulic telescopic part, a fixing frame and a connecting rod. The hydraulic telescopic part is installed on one side of the surface of the electric locomotive body, the fixing frame is connected to the top of the hydraulic telescopic part, and the connecting rod is connected to one side of the fixing frame and connected to the two U-shaped connecting sleeves.

6. The system for electric locomotive transportation in underground coal mines according to claim 5, characterized in that: There are at least two hydraulic telescopic parts, which are symmetrically distributed on both sides of the box.

7. The system for electric locomotive transportation in underground coal mines according to claim 3, characterized in that: The bracket is a U-shaped structure, the circular limiting block is made of elastic rubber material, and the fitting surface between the circular limiting block and the inner side wall of the track is arc-shaped.

8. The system for electric locomotive transportation in underground coal mines according to claim 1, characterized in that: A flushing assembly is provided at the bottom of the electric locomotive body, and the flushing assembly includes an air pump, a first pipe, a flushing head and a second pipe; the air pump is installed at the bottom of the electric locomotive body, the flushing head is connected to the output end of the air pump through the first pipe and faces the track surface, and one end of the second pipe is connected to the air pump.

9. The system for electric locomotive transportation in underground coal mines according to claim 1, characterized in that: Support assemblies are provided on both sides of the surface of the electric locomotive body, and the support assemblies include a support block, a mounting frame and a fixing bolt. The mounting frame is fixed to the side of the electric locomotive body through the fixing bolt. The support block is rotatably connected to the mounting frame through a rotating shaft, and the support block is in contact with the bottom of the track.

10. A method for electric locomotive transportation in underground coal mines, a system for electric locomotive transportation in underground coal mines according to claims 1 to 7, characterized in that: The following steps are involved: S1. When the electric locomotive body is traveling along the track, the cleaning component is started to clean the track surface, and the material is transported to the smearing component through the conveying device, and the smearing component smears the material on the track surface. During the driving process, the lateral displacement of the electric locomotive body is limited by the limit component, and the height of the conveying device is adjusted by the lifting device to meet the working conditions. S2. The cleaning process of the cleaning assembly includes: the connecting bracket moves with the electric locomotive body, and the circular connecting rod drives the U-shaped fixing sleeve and the cleaning brush to move synchronously, and the cleaning brush rubs against the track surface to remove coal slag and debris; S3. The material coating process of the coating component includes: the pump body of the conveying device conveys the material in the box through the conveying pipe to the U-shaped pipe, and then enters the U-shaped connecting sleeve through the connector. The coating cotton absorbs the material and evenly coats it on the track surface; S4. The limiting process of the limiting assembly includes: when the electric locomotive body is moving, the bracket drives the circular limiting block to slide along the side of the track. When the electric locomotive body deviates laterally, the circular limiting block contacts the side of the track to limit the deviation range; S5. The contact pressure between the cleaning brush of the cleaning assembly and the rail surface can be adjusted by adjusting the position of the U-shaped fixing sleeve on the circular connecting rod; S6. The fit between the smear cotton of the smearing component and the track surface can be adjusted by replacing smear cotton of different thicknesses to control the amount of material applied.

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