An integrated controllable axle for flameproof electromagnetic mining vehicles

Abstract

The invention discloses an integrated controllable brake shaft for a flameproof electromagnetic mine car, belonging to the technical field of brake shafts for flameproof electromagnetic mine cars. An integrated controllable brake shaft for a flameproof electromagnetic mine car comprises a mine car body and four rollers arranged at the bottom thereof. The integrated controllable brake shaft for a flameproof electromagnetic mine car, the flow and reflux of brake oil will flow through the oil flow groove, and will drive the turbofan to rotate at high speed. The rotation of the turbofan causes the fan shaft to drive the cooling fan to rotate at high speed through the main gear and the slave gear. The rotation of the cooling fan generates wind, which is gathered through the wind gathering box and then discharged through the exhaust port, the air cooling pipe and the wind gathering port, so as to facilitate real-time cooling of the brake. In the process of braking and releasing the brake, the brake is cooled in real time and synchronously, which can not only improve the heat dissipation efficiency of the brake, but also reduce the wear of the brake, thereby extending the service life of the brake and the brake disc.

Description

Technical Field

[0001] The invention relates to the technical field of flameproof electromagnetic mine car brake shafts, and more specifically to an integrated controllable brake shaft for flameproof electromagnetic mine cars. Background Art

[0002] The flameproof electromagnetic mine car is a special vehicle designed for specific environments such as mines. It integrates flameproof technology and electromagnetic drive system to ensure safe operation in flammable and explosive environments. The flameproof electromagnetic mine car has the characteristics of strong explosion-proof performance, safety and reliability, and easy operation. Its flameproof casing can effectively isolate the sparks and high temperatures generated by internal electrical equipment to prevent the detonation of external explosive gases. At the same time, the electromagnetic drive system provides smooth and efficient power output to ensure the stable operation of the mine car under complex working conditions.

[0003] In specific environments such as mining areas, mine cars are the main means of transportation, and their safe, stable and efficient operation is of vital importance. However, the environment in mining areas is harsh, the road slide rails are uneven, and when brakes are used, heat will be generated between the brake pads and the brake discs. If they are not cooled in time, the brakes will wear out. Some existing mine cars are cooled by air cooling, but during the braking and releasing process, the brakes cannot be cooled in real time and synchronously, which not only leads to low heat dissipation efficiency of the brakes, but also accelerates the wear of the brakes, thereby affecting the service life of the brakes and brake discs. Summary of the invention

[0004] The object of the present invention is to provide an integrated controllable dynamic shaft for a flameproof electromagnetic mining car to solve the problems raised in the above background technology:

[0005] Some existing mining cars are cooled by air cooling, but during the braking and releasing process, the brakes cannot be cooled synchronously in real time, which not only leads to low heat dissipation efficiency of the brakes, but also accelerates the wear of the brakes, thereby affecting the service life of the brakes and brake discs.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] An integrated controllable brake shaft for a flameproof electromagnetic mining car comprises a mining car body and four rollers arranged at the bottom thereof, the inner sides of the four rollers are all fixedly mounted with a brake shaft body, the surface of any one of the brake shaft bodies is fixedly mounted with a brake disc, the surface of the brake disc is fixedly mounted with a brake device for braking it, the corresponding side surfaces of the brake device are all fixedly mounted with a brake hydraulic retractor, the interior of the brake device is correspondingly and movably connected with two brake pads, the two brake pads are fixedly connected to the telescopic ends of the two brake hydraulic retractors, a return spring is elastically connected between the brake pads and the brake device, a plurality of through-type air-cooling pipes are fixedly mounted on the surface of the brake device, one end of any one of the air-cooling pipes is fixedly connected with an air gathering port for cooling the brake, an air-cooling device is fixedly mounted on one side of the brake device, a cooling fan using hydraulic transmission is arranged inside the air-cooling device, an air-gathering box is fixedly connected to the surface of one end of the air-cooling device, the air-gathering box is truncated, one end of the air-gathering box is fixedly mounted with exhaust ports having the same number as the air-cooling pipes, and the exhaust ports are connected to the air-cooling pipes.

[0008] By adopting the above technical scheme, the flow and backflow of brake oil will flow through the oil flow groove, and will drive the turbofan to rotate at high speed. The rotation of the turbofan causes the fan shaft to drive the cooling fan to rotate at high speed through the main gear and the slave gear. The rotation of the cooling fan will generate wind, which will be gathered through the wind gathering box and then discharged through the exhaust port, the air cooling pipe and the wind gathering port. The discharged wind will cool the brake pads and brake discs, which is convenient for real-time cooling of the brakes. During the braking and releasing process, the brakes are cooled in real time and synchronously, which can not only improve the heat dissipation efficiency of the brakes, but also reduce the wear of the brakes, thereby extending the service life of the brakes and brake discs.

[0009] Preferably, the ends of the two brake hydraulic telescopes are fixedly installed with hydraulic valves connected thereto, the bottom surfaces of the two hydraulic valves are fixedly installed with first oil ports connected thereto, a connecting block is fixedly provided on one side of the air cooling device, an oil flow groove is provided inside the connecting block, a second oil port is fixedly installed on one end of the connecting block, and the second oil port is connected to the two first oil ports through a two-branch hydraulic pipe.

[0010] By adopting the above technical solution, the flow and backflow of brake oil will flow through the oil flow groove, which will drive the turbofan to rotate at high speed. The rotation of the turbofan drives the cooling fan to rotate at high speed through the main gear and the slave gear, and the rotation of the cooling fan will generate wind.

[0011] Preferably, a turbine housing connected to the oil flow groove is fixedly mounted on the top surface of the connecting block, a turbine fan is rotatably connected inside the turbine housing, blades of the turbine fan extend into the oil flow groove, a main gear is rotatably connected inside the turbine housing, the main gear is located on one side of the turbine fan, the main gear is connected to the turbine fan through an axis, a fan shaft is rotatably connected to the surface of the air cooling device, a slave gear meshing with the main gear is fixedly mounted on one end of the fan shaft, the other end of the fan shaft is fixedly connected to the cooling fan, and a bracket for supporting the turbine fan is fixedly mounted on the inner wall of the turbine housing.

[0012] By adopting the above technical solution, the blades of the turbine fan extend into the oil flow groove, and the flow and return of the brake oil will flow through the oil flow groove to provide power for the rotation of the cooling fan.

[0013] Preferably, the exhaust port is connected to the air cooling pipe through a hose, a multi-way valve is fixedly installed below the mining car body, a third oil port is fixedly installed at the other end of the connecting block, and the four third oil ports are all connected to the multi-way valve.

[0014] By adopting the above technical solution, the multi-way valve is a conventional brake oil flow through the main valve in the prior art, and the multi-way valve realizes the distribution of the brake oil and flows into the connecting block.

[0015] Preferably, an oil pump for supplying oil to the multi-way valve is fixedly mounted on the bottom surface of the mine car body, a fixing frame is provided on the surface of the air cooling device, and the air cooling device is fixedly connected to the bottom surface of the mine car body via the fixing frame.

[0016] Preferably, a fixing plate is provided on the surface of the brake shaft body, one end of the fixing plate is rotatably connected to the brake shaft body, and the other end of the fixing plate is fixedly connected to the bottom surface of the mine car body.

[0017] Preferably, a support frame is fixedly installed between the braking device and the fixing plate, and the braking device is fixedly installed on the surface of the fixing plate through the support frame.

[0018] Preferably, motors are fixedly installed under both ends of the mining car body, the output shaft ends of both ends of the motor are fixedly connected with a rotating shaft, the internal spline of the rotating shaft is connected with a movable rotating shaft, an electric telescope is fixedly installed on the inner wall of the rotating shaft, the telescopic end of the electric telescope is fixedly connected to the movable rotating shaft, a main magnetic rotating part is fixedly installed on one end of the movable rotating shaft, an auxiliary magnetic rotating disk matching the main magnetic rotating part is fixedly installed on one end of the brake shaft body, and electromagnets are fixedly installed on the inner walls of the main magnetic rotating part and the auxiliary magnetic rotating disk.

[0019] By adopting the above technical solution, the main magnetic rotating part rotates at high speed, and under the action of the electromagnet magnetic pole, the auxiliary magnetic rotating disk rotates with the roller, thereby making the mine car body move. The extension and retraction of the electric telescope brings the main magnetic rotating part close to and away from the auxiliary magnetic rotating disk, which can effectively and real-time control the travel speed of the mine car body, so that the mine car body has high controllability, high steady-state accuracy and good dynamic performance.

[0020] Preferably, the multiple electromagnet poles on the inner wall of the main magnetic rotating member are staggered, and the multiple electromagnet poles on the inner wall of the auxiliary magnetic rotating disk are staggered. The rotation of the main magnetic rotating member can drive the auxiliary magnetic rotating disk to rotate under the action of the electromagnet poles.

[0021] By adopting the above technical solution, the main magnetic rotating member and the auxiliary magnetic rotating disk adopt a range electromagnetic form, so that there is no rigid connection between the brake shaft body and the motor without mechanical parts. When the roller encounters a stone, the rotation speed of the brake shaft body will suddenly drop. The main magnetic rotating member and the auxiliary magnetic rotating disk adopt a contactless electromagnetic drive form to prevent wear of the brake shaft body, and at the same time will not cause broken shafts or burning of the motor. During the braking process, real-time adjustments can be made according to factors such as the speed, load and driving distance of the mine car body, further improving the braking effect and operating safety.

[0022] Preferably, a bracket is provided between the motor and the mining car body, and the motor is fixedly mounted on the bottom surface of the mining car body through the bracket.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1) When the integrated controllable brake shaft of the flameproof electromagnetic mining car is in use, when the brake oil acts on the brake hydraulic expander through the oil flow groove, the second oil port, the first oil port and the hydraulic valve, the brake hydraulic expander extends to brake the brake disc with the brake pad. When the brake is released, the brake oil generates a backflow. The flow and backflow of the brake oil will flow through the oil flow groove, and will drive the turbofan to rotate at a high speed. The rotation of the turbofan causes the fan shaft to drive the cooling fan to rotate at a high speed through the main gear and the slave gear. The rotation of the cooling fan generates wind, which is gathered through the wind gathering box and then discharged through the exhaust port, the air cooling pipe and the wind gathering port. The discharged wind will cool the brake pad and the brake disc, which is convenient for real-time cooling of the brake. In the process of braking and releasing the brake, the brake is cooled in real time and synchronously, which can not only improve the heat dissipation efficiency of the brake, but also reduce the wear of the brake, thereby extending the service life of the brake and the brake disc.

[0025] 2) When the integrated controllable axle for the flameproof electromagnetic mine car is in use, the main magnetic rotating part rotates at high speed, and the auxiliary magnetic rotating disk rotates with the roller under the action of the electromagnet magnetic pole, thereby making the mine car body move. The extension and retraction of the electric telescope brings the main magnetic rotating part close to and away from the auxiliary magnetic rotating disk, which can effectively and real-time control the travel speed of the mine car body, so that the mine car body has high controllability, high steady-state accuracy and good dynamic performance.

[0026] 3) When the integrated controllable brake shaft of the explosion-proof electromagnetic mine car is in use, the main magnetic rotating part and the auxiliary magnetic rotating disk adopt the range electromagnetic form, so that there is no rigid connection between the brake shaft body and the motor with mechanical parts. When the roller encounters a stone, the speed of the brake shaft body will suddenly drop. The main magnetic rotating part and the auxiliary magnetic rotating disk adopt a contactless electromagnetic drive form to prevent the wear of the brake shaft body, and at the same time will not cause the shaft to break or the motor to burn. During the braking process, it can be adjusted in real time according to factors such as the speed, load and driving distance of the mine car body, further improving the braking effect and operation safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the structure of the roller and the brake shaft of the present invention;

[0029] Figure 3 It is a schematic diagram of the motor and shaft position structure of the present invention;

[0030] Figure 4 It is a schematic diagram of the position structure of the movable rotating shaft and the rotating shaft of the present invention;

[0031] Figure 5 It is a schematic diagram of the position structure of the brake disc and the brake device of the present invention;

[0032] Figure 6 It is a schematic diagram of the brake device and brake pad position structure of the present invention;

[0033] Figure 7 It is a schematic diagram of the position structure of the braking device and the air cooling device of the present invention;

[0034] Figure 8 It is a schematic diagram of the internal structure of the air cooling device of the present invention;

[0035] Fig. 9 It is a schematic diagram of the installation position of the turbofan of the present invention.

[0036] Explanation of the numbers in the figure: 1. Mine car body; 2. Roller; 3. Brake shaft body; 4. Brake disc; 5. Braking device; 6. Brake hydraulic retractor; 7. Brake pad; 8. Return spring; 9. Hydraulic valve; 10. First oil port; 11. Air cooling pipe; 12. Air gathering port; 13. Air cooling device; 14. Cooling fan; 15. Air gathering box; 16. Exhaust port; 17. Connecting block; 18. Oil flow groove; 19. Second oil port; 20. The third oil port; 21. The turbine compartment; 22. The turbofan; 23. The main gear; 24. The fan shaft; 25. The slave gear; 26. The bracket; 27. The multi-way valve; 28. The oil pump; 29. ​​The fixed frame; 30. The fixed plate; 31. The support frame; 32. The motor; 33. The rotating shaft; 34. The movable rotating shaft; 35. The electric telescope; 36. The main magnetic rotating part; 37. The auxiliary magnetic rotating disk; 38. The electromagnet; 39. The bracket. DETAILED DESCRIPTION Example 1

[0037] Some existing mining cars are cooled by air cooling, but during the braking and releasing process, the brakes cannot be cooled synchronously in real time, which not only leads to low heat dissipation efficiency of the brakes, but also accelerates the wear of the brakes, thereby affecting the service life of the brakes and brake discs.

[0038] See also Figure 1 - Fig. 9, an integrated controllable brake shaft for a flameproof electromagnetic mine car, comprising a mine car body 1 and four rollers 2 arranged at the bottom thereof, the mine car body 1 is a flameproof electromagnetic mine car, the inner sides of the four rollers 2 are fixedly installed with a brake shaft body 3, the surface of any brake shaft body 3 is fixedly installed with a brake disc 4, the surface of the brake disc 4 is fixedly provided with a brake device 5 for braking it, the brake device 5 and the brake disc 4 interact with each other, the mine car body 1 can be braked and released, the corresponding side surface of the brake device 5 is fixedly installed with a brake hydraulic expansion device 6, the brake hydraulic expansion device 6 is a hydraulic expansion rod in the prior art, and the internal corresponding active connection of the brake device 5 is provided with two A brake pad 7 is provided, and the two brake pads 7 are fixedly connected to the telescopic ends of the two brake hydraulic telescopes 6. The brake hydraulic telescope 6 is telescoped by oil pressure. A return spring 8 is elastically connected between the brake pad 7 and the brake device 5. One end of the return spring 8 is fixedly connected to the surface of the brake pad 7, and the other end of the return spring 8 is fixedly connected to the inner wall of the brake device 5. A plurality of through-type air cooling pipes 11 are fixedly arranged on the surface of the brake device 5. One end of any air cooling pipe 11 is fixedly connected to an air gathering port 12 for cooling the brake. The air gathering port 12 gathers the wind to reduce the cross-sectional area of ​​the air gathering port and increase the cooling effect of the wind. An air cooling device 11 is fixedly installed on one side of the brake device 5. 3. The air cooling device 13 is used to cool the brake in real time. A cooling fan 14 using hydraulic transmission is arranged inside the air cooling device 13. The cooling fan 14 uses hydraulic transmission. An air collecting box 15 is fixedly connected to the surface of one end of the air cooling device 13. The air collecting box 15 is truncated. One end of the air collecting box 15 is fixedly installed with exhaust ports 16 having the same number as the air cooling pipe 11, and the exhaust ports 16 are connected to the air cooling pipe 11. When the brake oil acts on the brake hydraulic expansion joint 6 through the oil flow groove 18, the second oil port 19, the first oil port 10 and the hydraulic valve 9, the brake hydraulic expansion joint 6 extends with the brake pad 7 to brake the brake disc 4. When the brake is released, the brake oil refluxes. Both the flow and the reflux will flow through the oil flow groove 18, and will drive the turbofan 22 to rotate at a high speed. The rotation of the turbofan 22 makes the fan shaft 24 drive the cooling fan 14 to rotate at a high speed through the main gear 23 and the slave gear 25. The rotation of the cooling fan 14 will generate wind, and the wind will be gathered by the wind collecting box 15, and then discharged through the exhaust port 16, the air cooling pipe 11 and the wind collecting port 12. The discharged wind will cool the brake pad 7 and the brake disc 4, which is convenient for real-time cooling of the brake. During the braking and releasing process, the brake is cooled in real time and synchronously, which can not only improve the heat dissipation efficiency of the brake, but also reduce the wear of the brake, thereby extending the service life of the brake and the brake disc 4.

[0039] The ends of the two brake hydraulic telescopes 6 are fixedly installed with hydraulic valves 9 connected thereto, and the hydraulic valves 9 are conventional hydraulic components in the prior art. The bottom surfaces of the two hydraulic valves 9 are fixedly installed with first oil ports 10 connected thereto, and a connecting block 17 is fixedly provided on one side of the air cooling device 13, and an oil flow groove 18 is provided inside the connecting block 17. A second oil port 19 is fixedly installed at one end of the connecting block 17, and the second oil port 19 is connected to the two first oil ports 10 through a two-branch hydraulic pipe. The flow and reflux of the brake oil will flow through the oil flow groove 18, and will drive the turbofan 22 to rotate at high speed. The rotation of the turbofan 22 causes the fan shaft 24 to drive the cooling fan 14 to rotate at high speed through the main gear 23 and the slave gear 25, and the rotation of the cooling fan 14 will generate wind.

[0040] A turbine chamber 21 connected to the oil flow groove 18 is fixedly installed on the top surface of the connecting block 17. A turbine chamber 21 is rotatably connected to the interior of the turbine chamber 21. The blades of the turbine fan 22 extend into the oil flow groove 18. A main gear 23 is rotatably connected to the interior of the turbine chamber 21. The main gear 23 is located on one side of the turbine fan 22. The main gear 23 is connected to the turbine fan 22 through an axis. A fan shaft 24 is rotatably connected to the surface of the air cooling device 13. A slave gear 25 meshing with the main gear 23 is fixedly installed at one end of the fan shaft 24. The ratio of the number of teeth of the main gear 23 and the slave gear 25 makes the slave gear 25 rotate at a high speed. The other end of the fan shaft 24 is fixedly connected to the cooling fan 14. A bracket 26 for supporting the turbine fan 22 is fixedly installed on the inner wall of the turbine chamber 21. The blades of the turbine fan 22 extend into the oil flow groove 18. The flow and reflux of the brake oil will flow through the oil flow groove 18 to provide power for the rotation of the cooling fan 14.

[0041] The exhaust port 16 is connected to the air cooling pipe 11 through a hose. A multi-way valve 27 is fixedly installed at the bottom of the mining car body 1. The other end of the connecting block 17 is fixedly installed with a third oil port 20. The four third oil ports 20 are all connected to the multi-way valve 27. The multi-way valve 27 is a conventional brake oil flow through main valve in the prior art. The function of the multi-way valve 27 is to realize the distribution of brake oil and flow it into the connecting block 17.

[0042] An oil pump 28 for supplying oil to the multi-way valve 27 is fixedly installed on the bottom surface of the mine car body 1. The oil pump 28 is a conventional oil pump 28 in the prior art. The extraction end of the oil pump 28 is connected to the brake oil tank, and the discharge end of the oil pump 28 is connected to the multi-way valve 27. A fixing frame 29 is provided on the surface of the air cooling device 13. The air cooling device 13 is fixedly connected to the bottom surface of the mine car body 1 through the fixing frame 29. The setting of the fixing frame 29 fixes the air cooling device 13.

[0043] A fixing plate 30 is disposed on the surface of the brake shaft body 3 , one end of the fixing plate 30 is rotatably connected to the brake shaft body 3 , and the other end of the fixing plate 30 is fixedly connected to the bottom surface of the mining vehicle body 1 .

[0044] A support frame 31 is fixedly installed between the braking device 5 and the fixing plate 30 . The braking device 5 is fixedly installed on the surface of the fixing plate 30 through the support frame 31 .

[0045] The steps of using the present invention are as follows: when the integrated controllable brake shaft of the explosion-proof electromagnetic mining car is in use, when the mining car body 1 needs to brake, the oil pump 28 extracts the brake oil and pumps the brake oil into the multi-way valve 27. The brake oil inside the multi-way valve 27 enters the connecting block 17 through the third oil port 20. When the brake oil acts on the brake hydraulic retractor 6 through the oil flow groove 18, the second oil port 19, the first oil port 10 and the hydraulic valve 9, the brake hydraulic retractor 6 extends with the brake pad 7 to brake the brake disc 4. When the brake oil flows through the oil flow groove 18, it will drive the turbofan 22 to rotate at high speed. The turbofan 22 rotates through the main gear 23 and the slave gear 25 so that the fan shaft 24 drives the cooling fan 14 to rotate at a high speed. The rotation of the cooling fan 14 generates wind, which is gathered through the wind collecting box 15 and then discharged through the exhaust port 16, the air cooling pipe 11 and the wind collecting port 12. The discharged wind cools the brake pad 7 and the brake disc 4. When the brake is released, the brake oil flows back through the oil flow groove 18, and at the same time drives the turbofan 22 to rotate at a high speed. The turbofan 22 rotates through the main gear 23 and the slave gear 25 so that the fan shaft 24 drives the cooling fan 14 to rotate at a high speed. The cooling fan 14 The rotation will generate wind, which will be gathered by the wind collecting box 15 and then discharged through the exhaust port 16, the air cooling pipe 11 and the wind collecting port 12. The discharged wind will cool the brake pad 7 and the brake disc 4. When the brake oil in this scheme acts on the brake hydraulic retractor 6 through the oil flow groove 18, the second oil port 19, the first oil port 10 and the hydraulic valve 9, the brake hydraulic retractor 6 extends with the brake pad 7 to brake the brake disc 4. When the brake is released, the brake oil will flow back. The flow and backflow of the brake oil will flow through the oil flow groove 18, and will drive the turbofan 22 to rotate at high speed. 22 rotates through the main gear 23 and the slave gear 25 so that the fan shaft 24 drives the cooling fan 14 to rotate at a high speed. The rotation of the cooling fan 14 generates wind, which is gathered by the wind collecting box 15 and then discharged through the exhaust port 16, the air cooling pipe 11 and the wind collecting port 12. The discharged wind cools the brake pad 7 and the brake disc 4, which is convenient for real-time cooling of the brake. During the braking and releasing process, the brake is cooled in real time and synchronously, which not only improves the heat dissipation efficiency of the brake, but also reduces the wear of the brake, thereby extending the service life of the brake and the brake disc 4. Example 2

[0046] When the mine car encounters a stone blocking the roller 2 during operation, since the existing roller 2 is rigidly connected to the drive device through the shaft, the speed of the roller 2 will suddenly drop. However, at this time, the drive device is still in a high-speed driving state. This speed difference will cause the brake shaft to be subjected to huge torque and impact force, which will cause rapid wear of the brake shaft. In severe cases, it may even cause the shaft to break, affecting the safe operation and production efficiency of the mine car. The problem is solved through the following solution.

[0047] See also Figure 1 - Fig. 9 , combined with the basis of Example 1, the difference is that motors 32 are fixedly installed below both ends of the mining car body 1, and the motor 32 is a conventional bidirectional output motor in the prior art. The output shaft ends of the motor 32 are fixedly connected with a rotating shaft 33, and the internal spline of the rotating shaft 33 is connected with a moving rotating shaft 34. An electric telescopic device 35 is fixedly installed on the inner wall of the rotating shaft 33. The electric telescopic device 35 is a conventional electric control push rod in the prior art. The telescopic end of the electric telescopic device 35 is fixedly connected to the moving rotating shaft 34, and a main magnetic rotating member 36 is fixedly installed at one end of the moving rotating shaft 34. An auxiliary magnetic rotating disk 37 matching the main magnetic rotating member 36 is fixedly installed at one end of the brake shaft body 3. The main magnetic rotating member 36 and the auxiliary magnetic rotating disk 37 are matching electromagnetic driving components in the prior art. The inner walls of the main magnetic rotating member 36 and the auxiliary magnetic rotating disk 37 are fixedly installed with electromagnets 38. When the main magnetic rotating member 36 rotates at a high speed, the electromagnetic Under the action of the iron 38 magnetic pole, the auxiliary magnetic rotating disk 37 rotates and drives the roller 2 to rotate, thereby driving the mine car body 1. The extension and retraction of the electric telescopic device 35 drives the main magnetic rotating member 36 close to and away from the auxiliary magnetic rotating disk 37, which can effectively and real-time control the travel speed of the mine car body 1, so that the mine car body 1 has high controllability, high steady-state accuracy and good dynamic performance; the main magnetic rotating member 36 and the auxiliary magnetic rotating disk 37 adopt a range electromagnetic form, so that there is no rigid connection between the brake shaft body 3 and the motor 32. When the roller 2 encounters a stone, the speed of the brake shaft body 3 will suddenly drop. The main magnetic rotating member 36 and the auxiliary magnetic rotating disk 37 adopt a contactless electromagnetic drive form to prevent the wear of the brake shaft body 3, and at the same time will not cause the shaft to break or the motor 32 to burn. During the braking process, it can be adjusted in real time according to factors such as the speed, load and driving distance of the mine car body 1, further improving the braking effect and operation safety.

[0048] The magnetic poles of multiple electromagnets 38 on the inner wall of the main magnetic rotating member 36 are staggered, and the magnetic poles of multiple electromagnets 38 on the inner wall of the auxiliary magnetic rotating disk 37 are staggered. The rotation of the main magnetic rotating member 36 can drive the auxiliary magnetic rotating disk 37 to rotate under the action of the magnetic poles of the electromagnet 38. The electromagnet 38 is a conventional electromagnet 38 in the prior art.

[0049] A bracket 39 is provided between the motor 32 and the mining car body 1 , and the motor 32 is fixedly mounted on the bottom surface of the mining car body 1 through the bracket 39 .

[0050] The steps of using the present invention are as follows: when the integrated controllable brake shaft of the explosion-proof electromagnetic mining car is in use, the motor 32 rotates and drives the rotating shaft 33 to rotate, and then extends out through the electric telescopic device 35. At this time, the movable rotating shaft 34 moves and drives the main magnetic rotating member 36 to move toward the auxiliary magnetic rotating disk 37. The main magnetic rotating member 36 rotates at a high speed, and the auxiliary magnetic rotating disk 37 rotates and drives the roller 2 to rotate under the action of the magnetic pole of the electromagnet 38, thereby making the mining car body 1 travel. The extension and retraction of the electric telescopic device 35 drives the main magnetic rotating member 36 to approach and move away from the auxiliary magnetic rotating disk 37, which can effectively and in real time control the travel speed of the mining car body 1. The main magnetic rotating member 36 and the auxiliary magnetic rotating disk 37 adopt a range electromagnetic form, so that there is no rigid connection between the brake shaft body 3 and the motor 32 without mechanical parts. When the roller 2 encounters a stone, the rotation speed of the brake shaft body 3 will suddenly drop. The main magnetic rotating member 36 and the auxiliary magnetic rotating disk 37 adopt a contactless electromagnetic drive form to prevent the wear of the brake shaft body 3, and at the same time will not cause the shaft to break or burn the motor 3. 2. In this scheme, the main magnetic rotating member 36 rotates at high speed, and the auxiliary magnetic rotating disk 37 rotates with the roller 2 under the action of the magnetic pole of the electromagnet 38, so that the mine car body 1 can travel. The extension and retraction of the electric telescopic device 35 brings the main magnetic rotating member 36 close to and away from the auxiliary magnetic rotating disk 37, which can effectively and real-time control the travel speed of the mine car body 1, so that the mine car body 1 has high controllability, high steady-state accuracy and good dynamic performance; the main magnetic rotating member 36 and the auxiliary magnetic rotating disk 37 adopt a range electromagnetic form, so that there is no rigid connection between the brake shaft body 3 and the motor 32. When the roller 2 encounters a stone, the speed of the brake shaft body 3 will suddenly drop. The main magnetic rotating member 36 and the auxiliary magnetic rotating disk 37 adopt a contactless electromagnetic drive form to prevent the wear of the brake shaft body 3, and at the same time will not cause the shaft to break or the motor 32 to burn. During the braking process, it can be adjusted in real time according to factors such as the speed, load and driving distance of the mine car body 1, further improving the braking effect and operation safety.

[0051] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An integrated controllable brake shaft for a flameproof electromagnetic mining car, comprising a mining car body (1) and four rollers (2) arranged at the bottom thereof, characterized in that: The inner side surfaces of the four rollers (2) are all fixedly mounted with a brake shaft body (3), the surface of any one of the brake shaft bodies (3) is fixedly mounted with a brake disc (4), the surface of the brake disc (4) is fixedly provided with a brake device (5) for braking the brake disc (4), the corresponding side surfaces of the brake device (5) are all fixedly mounted with a brake hydraulic retractor (6), the interior of the brake device (5) is correspondingly and movably connected with two brake pads (7), the two brake pads (7) are fixedly connected to the telescopic ends of the two brake hydraulic retractors (6), a return spring (8) is elastically connected between the brake pads (7) and the brake device (5), and the brake device (5) is A plurality of through-type air cooling pipes (11) are fixedly arranged on the surface of the device (5), one end of any of the air cooling pipes (11) is fixedly connected to an air gathering port (12) for cooling the brake, an air cooling device (13) is fixedly installed on one side of the brake device (5), a cooling fan (14) driven by hydraulic pressure is arranged inside the air cooling device (13), an air gathering box (15) is fixedly connected to the surface of one end of the air cooling device (13), the air gathering box (15) is truncated, and one end of the air gathering box (15) is fixedly installed with exhaust ports (16) the same in number as the air cooling pipes (11), and the exhaust ports (16) are connected to the air cooling pipes (11); The ends of the two brake hydraulic telescopic devices (6) are both fixedly mounted with hydraulic valves (9) in communication therewith, the bottom surfaces of the two hydraulic valves (9) are both fixedly mounted with first oil ports (10) in communication therewith, a connecting block (17) is fixedly mounted on one side of the air cooling device (13), an oil flow groove (18) is arranged inside the connecting block (17), a second oil port (19) is fixedly mounted on one end of the connecting block (17), and the second oil port (19) is in communication with the two first oil ports (10) via a two-branch hydraulic pipe; A turbine chamber (21) connected to the oil flow groove (18) is fixedly mounted on the top surface of the communication block (17); a turbine fan (22) is rotatably connected inside the turbine chamber (21); blades of the turbine fan (22) extend into the oil flow groove (18); a main gear (23) is rotatably connected inside the turbine chamber (21); the main gear (23) is located on one side of the turbine fan (22); the main gear (23) is connected to the turbine fan (22) via a shaft; a fan shaft (24) is rotatably connected to the surface of the air cooling device (13); a slave gear (25) meshing with the main gear (23) is fixedly mounted on one end of the fan shaft (24); the other end of the fan shaft (24) is fixedly connected to the cooling fan (14); a bracket (26) for supporting the turbine fan (22) is fixedly mounted on the inner wall of the turbine chamber (21); The flow and return of the brake oil will flow through the oil flow groove (18), and will drive the turbofan (22) to rotate at a high speed.

2. The integrated controllable brake shaft for a flameproof electromagnetic mining car according to claim 1 is characterized in that: The exhaust port (16) is connected to the air cooling pipe (11) via a hose, a multi-way valve (27) is fixedly installed below the mining car body (1), and a third oil port (20) is fixedly installed at the other end of the connecting block (17), and the four third oil ports (20) are all connected to the multi-way valve (27).

3. The integrated controllable brake shaft for a flameproof electromagnetic mining car according to claim 1 is characterized in that: An oil pump (28) for supplying oil to a multi-way valve (27) is fixedly mounted on the bottom surface of the mine car body (1), a fixing frame (29) is provided on the surface of the air cooling device (13), and the air cooling device (13) is fixedly connected to the bottom surface of the mine car body (1) via the fixing frame (29).

4. The integrated controllable brake shaft for a flameproof electromagnetic mining car according to claim 1 is characterized in that: A fixing plate (30) is provided on the surface of the brake shaft body (3), one end of the fixing plate (30) is rotatably connected to the brake shaft body (3), and the other end of the fixing plate (30) is fixedly connected to the bottom surface of the mining car body (1).

5. The integrated controllable brake shaft for a flameproof electromagnetic mining car according to claim 1 is characterized in that: A support frame (31) is fixedly mounted between the braking device (5) and the fixing plate (30), and the braking device (5) is fixedly mounted on the surface of the fixing plate (30) via the support frame (31).

6. The integrated controllable brake shaft for a flameproof electromagnetic mining car according to claim 1 is characterized in that: A motor (32) is fixedly mounted below both ends of the mining car body (1), and both ends of the output shaft of the motor (32) are fixedly connected to a rotating shaft (33), and the internal spline of the rotating shaft (33) is connected to a movable rotating shaft (34), and an electric telescopic device (35) is fixedly mounted on the inner wall of the rotating shaft (33), and the telescopic end of the electric telescopic device (35) is fixedly connected to the movable rotating shaft (34), and a main magnetic rotating member (36) is fixedly mounted on one end of the movable rotating shaft (34), and an auxiliary magnetic rotating disk (37) matching the main magnetic rotating member (36) is fixedly mounted on one end of the brake shaft body (3), and an electromagnet (38) is fixedly mounted on the inner walls of the main magnetic rotating member (36) and the auxiliary magnetic rotating disk (37).

7. The integrated controllable brake shaft for a flameproof electromagnetic mining vehicle according to claim 6 is characterized in that: The magnetic poles of the multiple electromagnets (38) on the inner wall of the main magnetic rotating member (36) are arranged in a staggered manner, and the magnetic poles of the multiple electromagnets (38) on the inner wall of the auxiliary magnetic rotating disk (37) are arranged in a staggered manner. The rotation of the main magnetic rotating member (36) can drive the auxiliary magnetic rotating disk (37) to rotate under the action of the magnetic poles of the electromagnets (38).

8. The integrated controllable brake shaft for a flameproof electromagnetic mining vehicle according to claim 6 is characterized in that: A hanger (39) is provided between the motor (32) and the mining car body (1), and the motor (32) is fixedly mounted on the bottom surface of the mining car body (1) via the hanger (39).

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