A mining motor that uses an external fan for efficient heat dissipation

Abstract

The present invention discloses a mining motor that adopts an external fan of a motor for efficient heat dissipation, which relates to the field of motor heat dissipation, comprises a front end cover and a rear end cover, and also comprises: a stator-rotor unit provided with an air duct, and an external fan unit for ventilating and cooling the stator-rotor unit; a temperature sensor is provided on the top of the rear end cover for checking the temperature change of the outer shell; the bottoms of the front end cover and the rear end cover are both provided with bases, the inner wall of the rear end cover is provided with an inner end cover, an output port is provided at one end of the front end cover away from the rear end cover, one side of the output port is rotatably connected to a main shaft, one end of the main shaft is fixedly connected to a built-in rotating shaft, the main shaft and the rotating built-in rotating shaft will rotate, driving the built-in fan to rotate, and when the temperature sensor detects that the temperature of the entire motor rises, the external fan unit will absorb air and isolate impurities, and transmit them into the stator-rotor unit for targeted fanning.

Description

Technical Field

[0001] The present invention relates to the technical field of motor heat dissipation, and in particular to a mining motor which adopts an external fan of the motor for efficient heat dissipation. Background Art

[0002] Mining motors are specialized motors designed to serve mining, transportation, and other operations. Due to their harsh working environment, often exposed to high humidity, high dust, strong electromagnetic interference, and the possible presence of flammable and explosive gases, their design and manufacturing are extremely demanding. They feature a high-protection-grade casing that effectively blocks the intrusion of dust and water vapor; the windings utilize special insulating materials to enhance electrical insulation performance and prevent short-circuit failures. In terms of heat dissipation, they have an efficient heat dissipation structure that can promptly dissipate the large amount of heat generated by the motor's operation, ensuring stable operation. Mining motors have a wide power range and can be adapted to different mining equipment, providing strong power for crushers, ventilators, hoists, etc., making them key equipment for maintaining safe production and efficient operations in mines.

[0003] In mining environments, mining motors often face complex working conditions such as high humidity, high dust content, and frequent load changes. When the motor is fully loaded, the temperature of the stator shaft inside the motor will rise suddenly. The fan on the inner wall of the motor can only introduce cold air into the motor casing, and cannot perform targeted heat treatment on the high-temperature parts. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the present invention solves the technical problems thereof by adopting the following technical solutions: a mining motor for efficiently dissipating heat by using an external fan of the motor, comprising a front cover and a rear cover, and further comprising:

[0005] A stator-rotor unit provided with an air duct, and an external fan unit for ventilating and cooling the stator-rotor unit;

[0006] A temperature sensor 1 is provided on the top of the rear end cover for detecting temperature changes of the housing;

[0007] The bottom of the front cover and the rear cover are both provided with a base, the inner wall of the rear cover is provided with an inner end cover, the top of the front cover is provided with a wiring box, the end of the front cover away from the rear cover is provided with an output port, one side of the output port is rotatably connected to a main shaft, and one end of the main shaft is fixedly connected to a built-in rotating shaft;

[0008] The stator rotor unit includes a stator winding arranged in a front cover and a rear cover, a stator core is evenly arranged on the outer surface of the stator winding, a ventilation cavity is provided in the stator core, an air outlet is provided at the top of one of the stator cores, two temperature sensors are symmetrically provided at both ends of the stator winding, an outer plate is provided on one side of the stator winding, an air inlet pipe is provided on the outer surface of the outer plate, circular holes are evenly provided on the stator core, and an inner tube is provided in the circular hole.

[0009] Preferably, the stator-rotor unit further comprises a cage rotor arranged on the built-in rotating shaft;

[0010] The air input by the external fan unit passes through the air inlet pipe, the outer plate, the stator winding in sequence and finally enters the stator core through the ventilation cavity and the inner pipe.

[0011] Preferably, a built-in fan is provided on one side of the built-in rotating shaft close to the inner end cover, and an isolation net is provided on the outer surface of the inner end cover;

[0012] Both ends of the inner tube are fixedly connected to the outer surface of the stator winding.

[0013] Preferably, the external fan unit includes an outer box arranged on the rear end cover, a variable frequency motor is arranged on one side of the outer box, and a variable frequency speed regulator is arranged on the variable frequency motor, which can accurately control the torque and speed of the variable frequency motor, so that the external fan is more stable and fast during the speed adjustment process, and the output end of the variable frequency motor is fixedly connected to the rotating shaft 1, the outer surface of the rotating shaft 1 is evenly provided with fan blades, the outer surface of the rotating shaft 1 is also provided with a support rod 1, and the end of the support rod 1 away from the rotating shaft 1 is fixedly connected to a blocking block, which rotates to the air inlet pipe to hinder the flow of gas into the air inlet pipe, and the side of the outer box away from the variable frequency motor is provided with an isolation mechanism to block impurities in the air, and the bottom of the isolation mechanism is provided with a purification mechanism to absorb corrosive gases, and the inner wall of the outer box is provided with a ventilation groove, and the outlet of the ventilation groove is provided with a connecting pipe;

[0014] One end of the air inlet pipe away from the outer plate is fixedly connected to the outer surface of the outer box.

[0015] Preferably, the isolation mechanism includes a circular frame plate arranged on the outer box, and a detachable filter screen is arranged on one side of the circular frame plate, which can block large particles of dust, and a bottom block is arranged on one end of the inner wall of the circular frame plate close to the filter screen, and the inner wall of the bottom block is rotatably connected to a rotating shaft 2, and both ends of the rotating shaft 2 are fixedly connected to a card frame with filter cotton placed inside to further filter tiny dust, and a support block 1 is symmetrically arranged on the top of the circular frame plate, and the outer surface of the support block 1 is fixedly connected to a telescopic spring, and the end of the telescopic spring away from the support block 1 is fixedly connected to a resist block, and the outer surface of the circular frame plate is provided with a cleaning mechanism for self-cleaning the filter screen.

[0016] Preferably, the cleaning mechanism includes a support plate 1 arranged on a circular frame plate, the outer surface of the support plate 1 is rotatably connected to a rotating shaft 3, the outer surface of the rotating shaft 3 is fixedly connected to a gear, the end of the rotating shaft 3 away from the support plate 1 is fixedly connected to a support block 2, the outer surface of the support block 2 is fixedly connected to a shovel plate, the inner wall of the shovel plate is fixedly connected to a support rod 2, and the outer surface of the support rod 2 is slidably connected to a sliding shovel block.

[0017] Preferably, the side of the retaining block away from the telescopic spring contacts the filter plate in the installed state, and the outer surface of the sliding shovel block contacts the outer surface of the shovel plate.

[0018] Preferably, the purification mechanism includes a bottom box arranged at the bottom of the circular frame plate, the bottom box is provided with an air inlet connected to the connecting pipe, the bottom of the bottom box is fixedly connected to a telescopic rod 1, the output end of the telescopic rod 1 is fixedly connected to a support plate 2, the top of the support plate 2 is provided with an electromagnetic plate, the outer surface of the electromagnetic plate is fixedly connected to a support rod 3, the outer surface of the support rod 3 is slidably connected to a catalytic conversion layer, the bottom of the catalytic conversion layer is provided with a magnetic block, the electromagnetic plate can generate the same and opposite magnetism as the magnetic block, the top of the catalytic conversion layer is provided with an isolation arc plate, the electromagnetic plate is connected to a power supply through a wire, the outer surface of the bottom box is slidably connected to a pulling plate, and the bottom box is also provided with a brushing mechanism for cleaning the catalytic conversion layer.

[0019] Preferably, the brushing mechanism includes a support frame, the outer surface of the support frame is fixedly connected to telescopic rod 2, the output end of telescopic rod 2 is fixedly connected to support plate 3, the outer surface of support plate 3 is rotatably connected to a rotating block, the outer surface of the rotating block is fixedly connected to a support arm, the outer surface of the support arm is fixedly connected to a brush plate, and one end of the brush plate is fixedly connected to a rack meshing with a gear.

[0020] Preferably, the power supply is arranged on the top of the second supporting plate, and the rotating block can be adjusted to bring the brush plate into contact with the catalytic conversion layer.

[0021] The beneficial effects of the present invention are as follows:

[0022] 1. The present invention provides an outer plate and an air inlet pipe on the stator winding, and a circular frame and an inner pipe on the stator core. When temperature sensor 1 or temperature sensor 2 detects an increase in the temperature of the motor, cooling air can directly enter the stator winding and the inner wall of the stator core instead of only entering the interior of the motor housing, thereby increasing the contact between the cooling air and the stator winding and the stator core.

[0023] 2. The present invention sets a variable frequency speed regulator, which controls the torque and speed of the variable frequency motor according to the data transmitted by the second temperature sensor when the temperature rises rapidly, thereby increasing the rotation speed of the rotating shaft and the fan blades, improving the air intake rate, and effectively improving the heat dissipation effect.

[0024] 3. The present invention is provided with an isolation mechanism, and the filter can be removed. Then the elastic force of the telescopic spring will push the blocking block and make the card frame rotate downward. After rotating ninety degrees, the side that blocks the tiny dust faces downward, and the inertia generated causes the micro dust to fall.

[0025] 4. The present invention is provided with a cleaning mechanism. As the rotating shaft 3 rotates, the supporting block 2 and the shovel plate will rotate, thereby shoveling the surface of the installed filter screen and shoveling off the large stains attached to the surface of the filter screen. When the shovel plate starts to rotate and stops rotating, the centrifugal force will also cause the sliding shovel block to slide along the supporting rod 2, removing the oil stains accumulated on the shovel plate, thereby avoiding the long-term presence of stains on the shovel plate affecting its scratching effect.

[0026] 5. The present invention sets a purification mechanism and adjusts the angle of the rotating block so that the brush plate faces upward. The telescopic rod 2 will extend and retract reciprocatingly, thereby driving the brush plate to brush the surface of the catalytic conversion layer, removing the failed parts, so that the corrosive gas can be adsorbed normally in the future. At the same time, the rack will engage with the gear, and the gear will rotate as the rack moves. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the present invention.

[0028] Figure 2 It is a structural sectional view of the present invention.

[0029] Figure 3 It is a structural schematic diagram of the stator-rotor unit of the present invention.

[0030] Figure 4 It is a structural cross-sectional view of the stator-rotor unit of the present invention.

[0031] Figure 5 It is a structural cross-sectional view of a single-layer electronic core of the present invention.

[0032] Figure 6 It is a structural schematic diagram of the external fan unit of the present invention.

[0033] Figure 7 It is a structural sectional view of the external fan unit of the present invention.

[0034] Figure 8 yes Figure 7 Enlarged view of point A in the middle.

[0035] Figure 9 It is a structural schematic diagram of the isolation mechanism of the present invention.

[0036] Figure 10 It is a structural schematic diagram of the cleaning mechanism of the present invention.

[0037] Figure 11 It is a structural schematic diagram of the purification mechanism of the present invention.

[0038] Figure 12 It is a partial structural diagram of the purification mechanism of the present invention.

[0039] Figure 13 It is a structural schematic diagram of the brushing mechanism of the present invention.

[0040] Figure: 1. Front cover; 2. Rear cover; 3. Base; 4. Temperature sensor 1; 5. External fan unit; 6. Stator-rotor unit; 7. Wiring box; 8. Output port; 9. Spindle; 10. Internal shaft; 11. Internal cover; 12. Internal fan; 13. Isolation net; 61. Stator winding; 62. Stator core; 63. Air outlet; 64. Temperature sensor 2; 65. External panel; 66. Air inlet pipe ; 67, inner tube; 68, ventilation cavity; 69, cage rotor; 610, circular hole; 51, outer box; 52, frequency conversion motor; 53, frequency conversion speed regulator; 54, isolation mechanism; 55, purification mechanism; 56, rotating shaft 1; 57, fan blade; 58, support rod 1; 59, shielding block; 510, ventilation groove; 511, connecting pipe; 541, round frame plate; 542, filter screen; 543, bottom block; 544, Rotating shaft 2; 545, card frame; 546, support block 1; 547, telescopic spring; 548, blocking block; 549, cleaning mechanism; 5491, support plate 1; 5492, rotating shaft 3; 5493, gear; 5494, support block 2; 5495, shovel plate; 5496, support rod 2; 5497, sliding shovel block; 551, bottom box; 552, air inlet; 553, telescopic rod 1; 554, Support plate two; 555, electromagnetic plate; 556, brushing mechanism; 557, support rod three; 558, catalytic conversion layer; 559, isolation arc plate; 5510, power supply; 5511, magnetic block; 5512, pulling plate; 5561, support frame; 5562, telescopic rod two; 5563, support plate three; 5564, rotating block; 5565, support arm; 5566, brush plate; 5567, rack. DETAILED DESCRIPTION

[0041] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are chosen and described to better illustrate the principles of the invention and its practical application, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for specific applications.

[0042] Example 1: Use Figures 1-13 A mining motor that uses an external fan of the motor for efficient heat dissipation according to one embodiment of the present invention is described below.

[0043] like Figure 1-Figure 2 As shown, a mining motor of the present invention that adopts an external fan of the motor for efficient heat dissipation includes a front cover 1 and a rear cover 2, and also includes:

[0044] A stator-rotor unit 6 with an air duct and an external fan unit 5 for ventilating and cooling the stator-rotor unit 6;

[0045] A temperature sensor 4 is provided on the top of the rear end cover 2 to detect the temperature change of the housing;

[0046] The bottom of the front cover 1 and the rear cover 2 are both provided with a base 3, the inner wall of the rear cover 2 is provided with an inner end cover 11, the top of the front cover 1 is provided with a wiring box 7, the end of the front cover 1 away from the rear cover 2 is provided with an output port 8, one side of the output port 8 is rotatably connected to the main shaft 9, and one end of the main shaft 9 is fixedly connected to the built-in rotating shaft 10;

[0047] As the motor works, the main shaft 9 and the rotating built-in shaft 10 will rotate, driving the built-in fan 12 to rotate. When the temperature sensor detects that the temperature of the entire motor has risen, the external fan unit 5 will absorb air and isolate impurities, and transmit it into the stator rotor unit 6 for targeted fanning.

[0048] like Figure 3-Figure 5 As shown, the stator-rotor unit 6 includes a stator winding 61 arranged in the front cover 1 and the rear cover 2. Stator cores 62 are evenly arranged on the outer surface of the stator winding 61. A ventilation cavity 68 is provided in the stator core 62. An air outlet 63 is provided at the top of one of the stator cores 62. Temperature sensors 64 are symmetrically provided at both ends of the stator winding 61. An outer plate 65 is provided on one side of the stator winding 61. An air inlet pipe 66 is provided on the outer surface of the outer plate 65. Circular holes 610 are evenly provided on the stator core 62, and an inner tube 67 is provided in the circular hole 610.

[0049] By providing an outer plate 65 and an air inlet pipe 66 on the stator winding 61 and providing a circular frame and placing an inner tube 67 on the stator core 62, when the temperature sensor 1 4 or the temperature sensor 2 64 detects that the temperature of the motor has risen, the cooling air can directly enter the inner wall of the stator winding 61 and the stator core 62 instead of only entering the inside of the motor casing. This increases the contact between the cooling air and the stator winding 61 and the stator core 62, and transports air to specific parts where heat is generated when the motor is working. After that, the hot air in the stator core 62 and the electronic winding will flow out through the air outlet 63, realizing rapid air circulation and increasing the cooling efficiency of the core parts.

[0050] The stator-rotor unit 6 further includes a cage rotor 69 disposed on the built-in rotating shaft 10;

[0051] The air input by the external fan unit 5 passes through the air inlet pipe 66 , the outer plate 65 , the stator winding 61 in sequence and finally enters the stator core 62 through the ventilation cavity 68 and the inner tube 67 .

[0052] A built-in fan 12 is provided on one side of the built-in rotating shaft 10 close to the inner end cover 11, and an isolation net 13 is provided on the outer surface of the inner end cover 11;

[0053] Both ends of the inner tube 67 are fixedly connected to the outer surface of the stator winding 61 .

[0054] The specific workflow is as follows:

[0055] During operation, when the temperature sensor 2 64 detects the temperature height of the electronic winding area, it will control the external fan unit 5 to inhale the outside air and transmit it into the stator rotor unit 6. An outer plate 65 and an air intake pipe 66 are set on the stator winding 61, and a round frame is set on the stator core 62 and an inner tube 67 is placed. When the temperature sensor 1 4 or the temperature sensor 2 64 detects that the temperature of the motor has risen, the cooling air can directly enter the inner wall of the stator winding 61 and the stator core 62, instead of only entering the inside of the motor casing, thereby increasing the contact between the cooling air and the stator winding 61 and the stator core 62.

[0056] Example 2: Use Figures 1-13 A mining motor that uses an external fan of the motor for efficient heat dissipation according to one embodiment of the present invention is described below.

[0057] like Figure 6-Figure 8As shown, a mining motor of the present invention adopts an external fan of a motor for efficient heat dissipation. On the basis of the first embodiment, the external fan unit 5 includes an outer box 51 arranged on the rear end cover 2, a variable frequency motor 52 is arranged on one side of the outer box 51, and a variable frequency speed regulator 53 is provided on the variable frequency motor 52, which can accurately control the torque and speed of the variable frequency motor 52, so that the external fan is more stable and fast during the speed adjustment process. The output end of the variable frequency motor 52 is fixedly connected to a rotating shaft 1 56, and the outer surface of the rotating shaft 1 56 is evenly provided with fan blades 57. A support rod 58 is further provided on the outer surface of the rotating shaft 56. A blocking block 59 is fixedly connected to the end of the support rod 58 away from the rotating shaft 56. The blocking block 59 rotates to the air inlet pipe 66 to block the flow of gas into the air inlet pipe 66. An isolation mechanism 54 for blocking impurities in the air is provided on the side of the outer box 51 away from the variable frequency motor 52. A purification mechanism 55 for absorbing corrosive gases is provided at the bottom of the isolation mechanism 54. A ventilation groove 510 is provided on the inner wall of the outer box 51, and a connecting pipe 511 is provided at the outlet of the ventilation groove 510.

[0058] The variable frequency speed regulator 53 will control the torque and speed of the variable frequency motor 52 according to the data transmitted by the second temperature sensor 64 when the temperature rises rapidly, thereby increasing the rotation speed of the shaft 1 56 and the fan blades 57, improving the air intake rate, and effectively improving the heat dissipation effect.

[0059] One end of the air inlet pipe 66 away from the outer plate 65 is fixedly connected to the outer surface of the outer box 51 .

[0060] like Figure 9 As shown, the isolation mechanism 54 includes a circular frame plate 541 arranged on the outer box 51, and a detachable filter screen 542 is arranged on one side of the circular frame plate 541, and the filter screen 542 can block large particles of dust. A bottom block 543 is provided on the inner wall of the circular frame plate 541 near the filter screen 542. The inner wall of the bottom block 543 is rotatably connected to a rotating shaft 2 544, and both ends of the rotating shaft 2 544 are fixedly connected to a card frame 545 with filter cotton placed inside to further filter tiny dust. Support blocks 1 546 are symmetrically arranged on the top of the circular frame plate 541, and the outer surface of the support block 1 546 is fixedly connected to a telescopic spring 547, and the end of the telescopic spring 547 away from the support block 1 546 is fixedly connected to a stop block 548. The outer surface of the circular frame plate 541 is provided with a cleaning mechanism 549 for self-cleaning the filter screen 542.

[0061] When the cooling gas is sucked into the circular frame plate 541, the filter 542 will block large particles of impurities, and the filter cotton in the card frame 545 will block tiny dust. However, with a long period of isolation, the impurities attached to the filter 542 and the filter cotton will affect the subsequent filtering effect. The filter 542 can be removed, and then the elastic force of the telescopic spring 547 will push the blocking block 548 and make the card frame 545 rotate downward. After rotating ninety degrees, the side that blocks tiny dust faces downward, and the inertia generated causes the micro dust to fall.

[0062] like Figure 10 As shown, the cleaning mechanism 549 includes a support plate 1 5491 arranged on the circular frame plate 541, the outer surface of the support plate 1 5491 is rotatably connected to the rotating shaft 3 5492, the outer surface of the rotating shaft 3 5492 is fixedly connected to the gear 5493, the end of the rotating shaft 3 5492 away from the support plate 1 5491 is fixedly connected to the support block 2 5494, the outer surface of the support block 2 5494 is fixedly connected to the shovel plate 5495, the inner wall of the shovel plate 5495 is fixedly connected to the support rod 2 5496, and the outer surface of the support rod 2 5496 is slidably connected to the sliding shovel block 5497.

[0063] As the rotating shaft 3 5492 rotates, the supporting block 2 5494 and the shovel plate 5495 will also rotate, thereby shoveling the surface of the installed filter 542 and shoveling off the large stains attached to the surface of the filter 542. In the process of the shovel plate 5495 starting to rotate and stopping rotation, the centrifugal force will also cause the sliding shovel block 5497 to slide along the supporting rod 2 5496, removing the oil stains accumulated on the shovel plate 5495, thereby avoiding the long-term presence of stains on the shovel plate 5495 affecting its scratching effect.

[0064] The side of the blocking block 548 away from the telescopic spring 547 contacts the filter plate in the installed state, and the outer surface of the sliding shovel block 5497 contacts the outer surface of the shovel plate 5495.

[0065] like Figure 11-12As shown, the purification mechanism 55 includes a bottom box 551 arranged at the bottom of the circular frame plate 541, and an air inlet 552 connected to the connecting pipe 511 is provided on the bottom box 551. The bottom of the bottom box 551 is fixedly connected to a telescopic rod 1 553, and the output end of the telescopic rod 1 553 is fixedly connected to a support plate 2 554. The top of the support plate 2 554 is provided with an electromagnetic plate 555, and the outer surface of the electromagnetic plate 555 is fixedly connected to a support rod 3 557, and the outer surface of the support rod 3 557 is slidable. The bottom box 551 is dynamically connected to a catalytic conversion layer 558, a magnetic block 5511 is provided at the bottom of the catalytic conversion layer 558, and the electromagnetic plate 555 can generate the same and opposite magnetism as the magnetic block 5511. The top of the catalytic conversion layer 558 is provided with an isolation arc plate 559, and the electromagnetic plate 555 is connected to the power supply 5510 through a wire. The outer surface of the bottom box 551 is slidably connected to the pulling plate 5512, and the bottom box 551 is also provided with a brushing mechanism 556 for cleaning the catalytic conversion layer 558.

[0066] After the air enters the circular frame plate 541, the telescopic rod 1 553 will also move upward, so that the catalytic conversion layer 558 is in the direction of air circulation, absorbing corrosive gases such as sulfur dioxide and hydrogen sulfide in the air. The surface of the catalytic conversion layer 558 will become ineffective after a lot of contact with corrosive gases such as sulfur dioxide and hydrogen sulfide. At this time, by pulling open the pulling plate 5512, the power supply 5510 will energize the electromagnetic plate 555, so that it generates magnetic force on the magnetic block 5511, thereby adsorbing the catalytic conversion layer 558 to slide along the support rod three 557.

[0067] While the brushing mechanism 556 is working, the telescopic rod 553 will be pulled back at intervals, so that the isolation arc plate 559 will place the bottom box 551 in a closed space. At the same time, the frequency conversion motor 52 will drive the rotating shaft 56 to stop at the blocking block 59 to block the air circulation of the intake pipe 66, so that the air just inhaled flows from the ventilation groove 510 and the connecting pipe 511 to the back of the catalytic conversion layer 558, realizing the reverse air flushing of the catalytic conversion layer 558, and further separating the scraped and failed parts from the catalytic conversion layer 558.

[0068] like Figure 13 As shown, the brushing mechanism 556 includes a support frame 5561, the outer surface of the support frame 5561 is fixedly connected to the telescopic rod 2 5562, the output end of the telescopic rod 2 5562 is fixedly connected to the support plate 3 5563, the outer surface of the support plate 3 5563 is rotatably connected to the rotating block 5564, the outer surface of the rotating block 5564 is fixedly connected to the support arm 5565, the outer surface of the support arm 5565 is fixedly connected to the brush plate 5566, and one end of the brush plate 5566 is fixedly connected to the rack 5567 meshing with the gear 5493.

[0069] Adjust the angle of the rotating block 5564 so that the brush plate 5566 faces upward, and the telescopic rod 5562 will extend and retract reciprocatingly, thereby driving the brush plate 5566 to brush the surface of the catalytic conversion layer 558, removing the failed parts so that the corrosive gas can be adsorbed normally in the future. At the same time, the rack 5567 will engage with the gear 5493, and the movement of the rack 5567 will drive the gear 5493 to rotate.

[0070] The power supply 5510 is set on the top of the support plate 2 554, and the rotating block 5564 can be adjusted to make the brush plate 5566 contact the catalytic conversion layer 558.

[0071] The specific workflow is as follows:

[0072] During operation, the variable frequency speed regulator 53 will control the torque and speed of the variable frequency motor 52 according to the data transmitted by the temperature sensor 2 64 when the temperature rises rapidly, thereby increasing the rotation speed of the rotating shaft 1 56 and the fan blade 57. In the process of the cooling gas being sucked into the circular frame plate 541, the filter 542 will block large particles of impurities, and the filter cotton in the card frame 545 will block tiny dust. At the same time, after the air enters the circular frame plate 541, the telescopic rod 1 553 will also move upward, so that the catalytic conversion layer 558 is in the direction of air circulation, absorbing corrosive gases such as sulfur dioxide and hydrogen sulfide in the air, and preventing corrosive gases in the mine air from entering the stator rotor unit 6.

[0073] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without making creative efforts should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention shall be implemented in accordance with conventional means in the field unless otherwise specified or limited.

Claims

1. A mining motor that uses an external fan to dissipate heat efficiently, comprising a front cover and a rear cover, characterized in that: Also includes: A stator-rotor unit provided with an air duct, and an external fan unit for ventilating and cooling the stator-rotor unit; A temperature sensor 1 for detecting changes in the shell temperature is provided on the top of the rear end cover; The bottom of the front cover and the rear cover are both provided with a base, the inner wall of the rear cover is provided with an inner end cover, the top of the front cover is provided with a wiring box, the end of the front cover away from the rear cover is provided with an output port, one side of the output port is rotatably connected to a main shaft, and one end of the main shaft is fixedly connected to a built-in rotating shaft; The stator rotor unit includes a stator winding arranged in a front cover and a rear cover, a stator core is evenly arranged on the outer surface of the stator winding, a ventilation cavity is provided in the stator core, an air outlet is provided at the top of one of the stator cores, two temperature sensors are symmetrically provided at both ends of the stator winding, an outer plate is provided on one side of the stator winding, an air inlet pipe is provided on the outer surface of the outer plate, circular holes are evenly provided on the stator core, and an inner tube is provided in the circular hole; The external fan unit includes an outer box arranged on the rear end cover, a variable frequency motor is arranged on one side of the outer box, and a variable frequency speed regulator is provided on the variable frequency motor, which can accurately control the torque and speed of the variable frequency motor, so that the external fan is more stable and fast during the speed adjustment process. The output end of the variable frequency motor is fixedly connected to a rotating shaft 1, and the outer surface of the rotating shaft 1 is evenly provided with fan blades. The outer surface of the rotating shaft 1 is also provided with a support rod 1, and the end of the support rod 1 away from the rotating shaft 1 is fixedly connected to a blocking block, which rotates to the air inlet pipe to hinder the flow of gas into the air inlet pipe. The side of the outer box away from the variable frequency motor is provided with an isolation mechanism to block impurities in the air, and the bottom of the isolation mechanism is provided with a purification mechanism to absorb corrosive gases. The inner wall of the outer box is provided with a ventilation groove, and the outlet of the ventilation groove is provided with a connecting pipe; One end of the air inlet pipe away from the outer plate is fixedly connected to the outer surface of the outer box; The purification mechanism includes a bottom box arranged at the bottom of the circular frame plate, the bottom box is provided with an air inlet connected to the connecting pipe, the bottom of the bottom box is fixedly connected to a telescopic rod 1, the output end of the telescopic rod 1 is fixedly connected to a support plate 2, the top of the support plate 2 is provided with an electromagnetic plate, the outer surface of the electromagnetic plate is fixedly connected to a support rod 3, the outer surface of the support rod 3 is slidably connected to a catalytic conversion layer, the bottom of the catalytic conversion layer is provided with a magnetic block, the electromagnetic plate can generate the same and opposite magnetism as the magnetic block, the top of the catalytic conversion layer is provided with an isolation arc plate, the electromagnetic plate is connected to a power supply through a wire, the outer surface of the bottom box is slidably connected to a pulling plate, and the bottom box is also provided with a brushing mechanism that can clean the catalytic conversion layer; The brushing mechanism includes a support frame, the outer surface of the support frame is fixedly connected to telescopic rod 2, the output end of telescopic rod 2 is fixedly connected to support plate 3, the outer surface of support plate 3 is rotatably connected to a rotating block, the outer surface of the rotating block is fixedly connected to a support arm, the outer surface of the support arm is fixedly connected to a brush plate, and one end of the brush plate is fixedly connected to a rack meshing with a gear.

2. The mining motor according to claim 1, which adopts an external fan of the motor for efficient heat dissipation, is characterized in that: The stator-rotor unit further includes a cage rotor arranged on the built-in rotating shaft; The air input by the external fan unit passes through the air inlet pipe, the outer plate, the stator winding in sequence and finally enters the stator core through the ventilation cavity and the inner pipe.

3. The mining motor according to claim 1, which adopts an external fan of the motor for efficient heat dissipation, is characterized in that: A built-in fan is provided on one side of the built-in rotating shaft close to the inner end cover, and an isolation net is provided on the outer surface of the inner end cover; Both ends of the inner tube are fixedly connected to the outer surface of the stator winding.

4. The mining motor according to claim 1, which adopts an external fan of the motor for efficient heat dissipation, is characterized in that: The isolation mechanism includes a circular frame plate arranged on the outer box, and a detachable filter screen is arranged on one side of the circular frame plate, which can block large particles of dust. A bottom block is provided at one end of the inner wall of the circular frame plate close to the filter screen, and the inner wall of the bottom block is rotatably connected to a rotating shaft 2, and both ends of the rotating shaft 2 are fixedly connected to a card frame with filter cotton placed inside to further filter tiny dust. A support block 1 is symmetrically arranged on the top of the circular frame plate, and a telescopic spring is fixedly connected to the outer surface of the support block 1, and a stop block is fixedly connected to the end of the telescopic spring away from the support block 1. The outer surface of the circular frame plate is provided with a cleaning mechanism for self-cleaning the filter screen.

5. The mining motor according to claim 4, which adopts an external fan of the motor for efficient heat dissipation, is characterized in that: The cleaning mechanism includes a support plate 1 arranged on a circular frame plate, the outer surface of the support plate 1 is rotatably connected to a rotating shaft 3, the outer surface of the rotating shaft 3 is fixedly connected to a gear, the end of the rotating shaft 3 away from the support plate 1 is fixedly connected to a support block 2, the outer surface of the support block 2 is fixedly connected to a shovel plate, the inner wall of the shovel plate is fixedly connected to a support rod 2, and the outer surface of the support rod 2 is slidably connected to a sliding shovel block.

6. The mining motor according to claim 5, which adopts an external fan of the motor for efficient heat dissipation, is characterized in that: The side of the resisting block away from the telescopic spring contacts the filter plate in the installed state, and the outer surface of the sliding shovel block contacts the outer surface of the shovel plate.

7. The mining motor according to claim 1, which adopts an external fan of the motor for efficient heat dissipation, is characterized in that: The power supply is arranged on the top of the second supporting plate, and the rotating block can be adjusted to make the brush plate come into contact with the catalytic conversion layer.

Images