Mining motor adopting motor outer fan for efficient heat dissipation

Abstract

The invention discloses a mining motor adopting a motor outer fan for efficient heat dissipation, and relates to the field of motor heat dissipation, the mining motor comprises a front end cover and a rear end cover, and also comprises a stator and rotor unit provided with an air duct, and an outer fan unit for ventilating and cooling the stator and rotor unit; a temperature sensor I is arranged at the top of the rear end cover and is used for checking the temperature change of the shell; bases are arranged at the bottoms of the front end cover and the rear end cover, an inner end cover is arranged on the inner wall of the rear end cover, an output port is formed in the end, away from the rear end cover, of the front end cover, a main shaft is rotationally connected to one side of the output port, a built-in rotating shaft is fixedly connected to one end of the main shaft, and the main shaft and the built-in rotating shaft can rotate; when the temperature sensor detects that the temperature of the whole motor rises, the external fan unit absorbs air and isolates impurities, and the air is transmitted into the stator and rotor unit for targeted heat dissipation.

Description

Technical Field

[0001] The present invention relates to the technical field of motor heat dissipation, and specifically relates to a mining motor that uses an external motor fan for efficient heat dissipation. Background Art

[0002] A mining motor is a special motor dedicated to serving operations such as mine exploitation and transportation. Due to its harsh working environment, it often faces high humidity, a lot of dust, strong electromagnetic interference, and potentially flammable and explosive gases. Therefore, it is extremely strict in design and manufacturing. It has a high protection level shell that can effectively block the intrusion of dust and water vapor; the winding uses special insulating materials to enhance the electrical insulation performance and prevent short circuit faults. In terms of heat dissipation, it has an efficient heat dissipation structure that can quickly disperse a large amount of heat generated during motor operation to ensure stable operation. The mining motor has a wide power range and can adapt to different mining equipment, providing strong power for crushers, ventilators, hoists, etc. It is a key equipment to maintain the safe production and efficient operation of mines.

[0003] In a mining environment, a mining motor often faces complex working conditions of high humidity, a lot of dust, and frequent load changes. When the motor is fully loaded, the temperature of the stator rotating shaft inside the motor will suddenly rise. The fan inside the motor wall can only introduce cold air into the motor shell and cannot perform targeted heat treatment on high-temperature parts. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the technical solution adopted by the present invention to solve its technical problems is: A mining motor that uses an external motor fan for efficient heat dissipation according to the present invention includes a front end cover and a rear end cover, and further 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 is provided at the top of the rear end cover for checking the temperature change of the shell; Bases are provided at the bottoms of both the front end cover and the rear end cover. An inner end cover is provided on the inner wall of the rear end cover. A wiring box is provided at the top of the front end cover. An output port is provided at one end of the front end cover away from the rear end cover. A main shaft is rotatably connected to one side of the output port. One end of the main shaft is fixedly connected to an internal rotating shaft; The stator-rotor unit includes a stator winding provided in the front end cover and the rear end cover. A stator core is evenly provided on the outer surface of the stator winding. An air vent cavity is provided inside the stator core. An air outlet end is provided at the top of one of the stator cores. Temperature sensors 2 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 pipe is provided in the circular hole.

[0005] Preferably, the stator-rotor unit further includes a cage rotor arranged on the built-in rotating shaft; The air input by the external fan unit sequentially passes through the air inlet pipe, the outer plate, the stator winding, and finally enters the stator core through the ventilation cavity and the inner pipe.

[0006] Preferably, an internal fan is arranged on one side of the built-in rotating shaft close to the inner end cover, and an isolation net is arranged on the outer surface of the inner end cover; Both ends of the inner pipe are fixedly connected to the outer surface of the stator winding.

[0007] 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, 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, making the external fan more stable and fast during the speed regulation process. The output end of the variable-frequency motor is fixedly connected to a first rotating shaft, fan blades are evenly arranged on the outer surface of the first rotating shaft, a first support rod is further arranged on the outer surface of the first rotating shaft, and a shielding block is fixedly connected to one end of the first support rod away from the first rotating shaft. When the shielding block rotates to the air inlet pipe, it obstructs the flow of gas into the air inlet pipe. An isolation mechanism for blocking impurities in the air is arranged on the side of the outer box away from the variable-frequency motor, a purification mechanism for absorbing corrosive gas is arranged at the bottom of the isolation mechanism, an air ventilation groove is arranged on the inner wall of the outer box, and a connecting pipe is arranged at the outlet of the air ventilation groove; One end of the air inlet pipe away from the outer plate is fixedly connected to the outer surface of the outer box.

[0008] Preferably, the isolation mechanism includes a circular frame plate arranged on the outer box, a detachable filter net is arranged on one side of the circular frame plate, which can block large-particle dust. A bottom block is arranged at one end of the inner wall of the circular frame plate close to the filter net, a second rotating shaft is rotatably connected to the inner wall of the bottom block, and clamping frames internally filled with filter cotton are fixedly connected to both ends of the second rotating shaft to further filter fine dust. First support blocks are symmetrically arranged on the top of the circular frame plate, a telescopic spring is fixedly connected to the outer surface of the first support block, a blocking block is fixedly connected to one end of the telescopic spring away from the first support block, and a cleaning mechanism for self-cleaning the filter net is arranged on the outer surface of the circular frame plate.

[0009] Preferably, the cleaning mechanism includes a first support plate arranged on the circular frame plate, a third rotating shaft is rotatably connected to the outer surface of the first support plate, a gear is fixedly connected to the outer surface of the third rotating shaft, a second support block is fixedly connected to one end of the third rotating shaft away from the first support plate, a shovel plate is fixedly connected to the outer surface of the second support block, a second support rod is fixedly connected to the inner wall of the shovel plate, and a sliding shovel block is slidably connected to the outer surface of the second support rod.

[0010] Preferably, one side of the blocking block away from the telescopic spring is in contact with the filter plate in the installed state, and the outer surface of the sliding shovel block is in contact with the outer surface of the shovel plate.

[0011] Preferably, the purification mechanism includes a bottom box arranged at the bottom of the circular frame plate. An air inlet connected to the connecting pipe is arranged on the bottom box. A first telescopic rod is fixedly connected to the bottom of the bottom box. The output end of the first telescopic rod is fixedly connected to a second support plate. A through electromagnetic plate is arranged on the top of the second support plate. A third support rod is fixedly connected to the outer surface of the through electromagnetic plate. A catalytic conversion layer is slidably connected to the outer surface of the third support rod. A magnetic block is arranged at the bottom of the catalytic conversion layer. The through electromagnetic plate can generate magnetic properties the same as and opposite to those of the magnetic block. An isolation arc plate is arranged at the top of the catalytic conversion layer. The through electromagnetic plate is connected to a power supply through a wire. A pulling plate is slidably connected to the outer surface of the bottom box. A brushing mechanism for cleaning the catalytic conversion layer is further arranged on the bottom box.

[0012] Preferably, the brushing mechanism includes a support frame. A second telescopic rod is fixedly connected to the outer surface of the support frame. The output end of the second telescopic rod is fixedly connected to a third support plate. A rotating block is rotatably connected to the outer surface of the third support plate. A support arm is fixedly connected to the outer surface of the rotating block. A brush plate is fixedly connected to the outer surface of the support arm. A rack meshing with the gear is fixedly connected to one end of the brush plate.

[0013] Preferably, the power supply is arranged on the top of the second support plate, and the rotating block can be adjusted to make the brush plate contact with the catalytic conversion layer.

[0014] The beneficial effects of the present invention are as follows: 1. In the present invention, by arranging an outer plate, an air inlet pipe on the stator winding and arranging a circular frame and placing an inner pipe on the stator core, when the temperature sensor 1 or the temperature sensor 2 detects that the temperature of the motor rises, the cooling air can directly enter the inner walls of the stator winding and the stator core, rather than only entering the interior of the motor housing, increasing the contact between the cold air and the stator winding and the stator core.

[0015] 2. In the present invention, by arranging a variable frequency speed regulator, the variable frequency speed regulator will control the torque and speed of the variable frequency motor according to the data transmitted by the temperature sensor 2 when the temperature rises relatively fast, thereby increasing the rotation speed of the first rotating shaft and the fan blades, improving the air intake rate, and effectively improving the heat dissipation effect.

[0016] 3. In the present invention, by arranging an isolation mechanism, the filter net can be removed, and then the elastic force of the telescopic spring will push the blocking block and make the card frame rotate downward. After rotating 90 degrees, the side blocking the fine dust faces downward, and the generated inertia causes the micro dust to fall off.

[0017] 4. By setting up a cleaning mechanism in the present invention, with the rotation of the third rotating shaft, the second support block and the shoveling plate will rotate, thereby shoveling the surface of the installed filter screen and shoveling off the large stains adhering to the surface of the filter screen. During the process of the shoveling plate starting to rotate and stopping rotating, the centrifugal force will also cause the sliding shovel block to slide along the second support rod, removing the oil stains accumulated on the shoveling plate, avoiding the influence of long-term stains on the shoveling plate on its scraping effect.

[0018] 5. By setting up a purification mechanism in the present invention, adjusting the angle of the rotating block to make the brush plate face upward, the second telescopic rod will perform reciprocating operations of extending and retracting, thereby driving the brush plate to brush the surface of the catalytic conversion layer and removing the ineffective parts, enabling normal adsorption of corrosive gases in the follow-up. At the same time, the rack will engage with the gear, and the rotation of the gear will be driven as the rack moves. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the present invention.

[0020] Figure 2 is a structural sectional view of the present invention.

[0021] Figure 3 is a schematic structural diagram of the stator-rotor unit of the present invention.

[0022] Figure 4 is a structural sectional view of the stator-rotor unit of the present invention.

[0023] Figure 5 is a structural sectional view of the single-layer electronic iron core of the present invention.

[0024] Figure 6 is a schematic structural diagram of the external fan unit of the present invention.

[0025] Figure 7 is a structural sectional view of the external fan unit of the present invention.

[0026] Figure 8 is Figure 7 the enlarged view of part A in

[0027] Figure 9 is a schematic structural diagram of the isolation mechanism of the present invention.

[0028] Figure 10 is a schematic structural diagram of the cleaning mechanism of the present invention.

[0029] Figure 11 is a schematic structural diagram of the purification mechanism of the present invention.

[0030] Figure 12 is a partial structural schematic diagram of the purification mechanism of the present invention.

[0031] Figure 13 This is a schematic structural diagram of the brushing mechanism of the present invention.

[0032] In the figure: 1. Front end cover; 2. Rear end cover; 3. Base; 4. First temperature sensor; 5. External fan unit; 6. Stator-rotor unit; 7. Wiring box; 8. Output port; 9. Main shaft; 10. Built-in rotating shaft; 11. Inner end cover; 12. Built-in fan; 13. Isolation net; 61. Stator winding; 62. Stator core; 63. Air outlet end; 64. Second temperature sensor; 65. Outer plate; 66. Intake pipe; 67. Inner pipe; 68. Ventilation cavity; 69. Cage rotor; 610. Round hole; 51. Outer box; 52. Variable-frequency motor; 53. Variable-frequency speed regulator; 54. Isolation mechanism; 55. Purification mechanism; 56. First rotating shaft; 57. Fan blade; 58. First support rod; 59. Blocking block; 510. Ventilation groove; 511. Connecting pipe; 541. Circular frame plate; 542. Filter screen; 543. Bottom block; 544. Second rotating shaft; 545. Clamping frame; 546. First support block; 547. Telescopic spring; 548. Resisting block; 549. Cleaning mechanism; 5491. First support plate; 5492. Third rotating shaft; 5493. Gear; 5494. Second support block; 5495. Shoveling plate; 5496. Second support rod; 5497. Sliding shoveling block; 551. Bottom box; 552. Intake port; 553. First telescopic rod; 554. Second support plate; 555. Electromagnetic plate; 556. Brushing mechanism; 557. Third support rod; 558. Catalytic conversion layer; 559. Isolation arc plate; 5510. Power supply; 5511. Magnet; 5512. Pulling plate; 5561. Support frame; 5562. Second telescopic rod; 5563. Third support plate; 5564. Rotating block; 5565. Support arm; 5566. Brushing plate; 5567. Rack. Detailed implementation mode

[0033] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation modes. The embodiments of the present invention are given for the purpose of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations will be obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific purposes. Embodiment 1, use Figures 1-13 A mining motor using an external fan of the motor for efficient heat dissipation according to an embodiment of the present invention will be described as follows.

[0034] As Figures 1-2 shown, a mining motor using an external fan of the motor for efficient heat dissipation of the present invention includes a front end cover 1 and a rear end cover 2, and further includes: A stator-rotor unit 6 provided with an air duct and an external fan unit 5 for ventilating and cooling the stator-rotor unit 6; A temperature sensor 1 is provided at the top of the rear end cover 2 for checking the temperature change of the housing; Bases 3 are provided at the bottoms of both the front end cover 1 and the rear end cover 2. An inner end cover 11 is provided on the inner wall of the rear end cover 2. A wiring box 7 is provided at the top of the front end cover 1. An output port 8 is provided at one end of the front end cover 1 away from the rear end cover 2. A main shaft 9 is rotatably connected to one side of the output port 8. One end of the main shaft 9 is fixedly connected to a built-in rotating shaft 10; As the motor operates, the main shaft 9 and the rotating built-in rotating shaft 10 will rotate, driving the built-in fan 12 to rotate. When the temperature sensor detects an increase in the temperature of the overall motor, the external fan unit 5 will absorb air, isolate impurities, and transmit it into the stator-rotor unit 6 for targeted heat dissipation.

[0035] As Figures 3-5 As shown, the stator-rotor unit 6 includes a stator winding 61 disposed within the front end cover 1 and the rear end cover 2. The outer surface of the stator winding 61 is evenly provided with a stator core 62. An air vent cavity 68 is provided within the stator core 62. An air outlet end 63 is provided at the top of one of the stator cores 62. Temperature sensors 2 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 intake 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 pipe 67 is provided within the circular holes 610.

[0036] By providing an outer plate 65 and an intake pipe 66 on the stator winding 61 and a circular frame on the stator core 62 and placing an inner pipe 67, when the temperature sensor 1 or the temperature sensor 2 detects an increase in the temperature of the motor, the cooled air can directly enter the inner walls of the stator winding 61 and the stator core 62, rather than only entering the interior of the motor housing, increasing the contact between the cold air and the stator winding 61 and the stator core 62, delivering air to the specific parts that generate heat during motor operation. Then, the hot air in the stator core 62 and the electronic winding will flow out through the air outlet end 63, realizing rapid air circulation and increasing the cooling efficiency of the core parts.

[0037] The stator-rotor unit 6 further includes a cage rotor 69 disposed on the built-in rotating shaft 10; The air input by the external fan unit 5 sequentially passes through the intake pipe 66, the outer plate 65, the stator winding 61, and finally enters the stator core 62 through the air vent cavity 68 and the inner pipe 67.

[0038] An inner 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; Both ends of the inner tube 67 are fixedly connected to the outer surface of the stator winding 61.

[0039] The specific working process is as follows: During operation, when the temperature sensor II 64 detects an increase in the temperature in the electronic winding area, it will control the external fan unit 5 to inhale external air and transmit it into the stator-rotor unit 6. An outer plate 65, an air inlet pipe 66 are arranged on the stator winding 61, and a circular frame is arranged on the stator core 62 to place the inner tube 67. When the temperature sensor I 4 or the temperature sensor II 64 detects an increase in the temperature of the motor, the cooling air can directly enter the inner walls of the stator winding 61 and the stator core 62, rather than only entering the interior of the motor housing, increasing the contact between the cold air and the stator winding 61 and the stator core 62.

[0040] Embodiment II, using Figures 1-13 A mining motor using an external motor fan for efficient heat dissipation in an embodiment of the present invention will be described as follows.

[0041] As Figures 6-8 As shown, for a mining motor using an external motor fan for efficient heat dissipation according to the present invention, on the basis of Embodiment I, the external fan unit 5 includes an outer box 51 arranged on the rear end cover 2. One side of the outer box 51 is provided with a variable-frequency motor 52, and a variable-frequency speed regulator 53 is arranged on the variable-frequency motor 52, which can precisely control the torque and speed of the variable-frequency motor 52, making the external fan more stable and fast during the speed regulation process. The output end of the variable-frequency motor 52 is fixedly connected to a rotating shaft I 56. The outer surface of the rotating shaft I 56 is evenly provided with fan blades 57. A support rod I 58 is also arranged on the outer surface of the rotating shaft I 56. One end of the support rod I 58 far from the rotating shaft I 56 is fixedly connected to a shielding block 59. When the shielding block 59 rotates to the air inlet pipe 66, it obstructs the flow of gas into the air inlet pipe 66. An isolation mechanism 54 for blocking impurities in the air is arranged on the side of the outer box 51 far from the variable-frequency motor 52. A purification mechanism 55 for absorbing corrosive gases is arranged at the bottom of the isolation mechanism 54. An air vent groove 510 is arranged on the inner wall of the outer box 51, and a connecting pipe 511 is arranged at the outlet of the air vent groove 510; 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 II 64. When the temperature rises rapidly, the rotation speed of the rotating shaft I 56 and the fan blades 57 is increased, improving the air intake rate and effectively enhancing the heat dissipation effect.

[0042] One end of the air inlet pipe 66 far from the outer plate 65 is fixedly connected to the outer surface of the outer box 51.

[0043] As Figure 9As shown, the isolation mechanism 54 includes a circular frame plate 541 provided on the outer box 51. A detachable filter screen 542 is provided on one side of the circular frame plate 541. The filter screen 542 can block large particle dust. A bottom block 543 is provided at one end of the inner wall of the circular frame plate 541 close to the filter screen 542. A second rotating shaft 544 is rotatably connected to the inner wall of the bottom block 543. Clamping frames 545 with filter cotton placed inside are fixedly connected to both ends of the second rotating shaft 544 to further filter tiny dust. Support blocks 546 are symmetrically provided at the top of the circular frame plate 541. A telescopic spring 547 is fixedly connected to the outer surface of the support block 546. A blocking block 548 is fixedly connected to the end of the telescopic spring 547 away from the support block 546. A cleaning mechanism 549 for self-cleaning the filter screen 542 is provided on the outer surface of the circular frame plate 541.

[0044] During the process of the cooling gas being inhaled into the circular frame plate 541, the filter screen 542 will block large particle impurities, and at the same time, the filter cotton in the clamping frame 545 will block tiny dust. However, with long-term isolation, the impurities adhering to the filter screen 542 and the filter cotton will affect the subsequent filtering effect. The filter screen 542 can be removed, and then the elastic force of the telescopic spring 547 will push the blocking block 548 and cause the clamping frame 545 to rotate downward. After rotating 90 degrees, the side blocking tiny dust will face downward, and the generated inertia will cause the micro dust to fall off.

[0045] As Figure 10 shown, the cleaning mechanism 549 includes a first support plate 5491 provided on the circular frame plate 541. A third rotating shaft 5492 is rotatably connected to the outer surface of the first support plate 5491. A gear 5493 is fixedly connected to the outer surface of the third rotating shaft 5492. A second support block 5494 is fixedly connected to the end of the third rotating shaft 5492 away from the first support plate 5491. A shoveling plate 5495 is fixedly connected to the outer surface of the second support block 5494. A second support rod 5496 is fixedly connected to the inner wall of the shoveling plate 5495. A sliding shoveling block 5497 is slidably connected to the outer surface of the second support rod 5496.

[0046] As the third rotating shaft 5492 rotates, it will drive the second support block 5494 and the shoveling plate 5495 to rotate, thereby shoveling the surface of the installed filter screen 542 and shoveling off the large stains adhering to the surface of the filter screen 542. During the process of the shoveling plate 5495 starting to rotate and stopping rotating, the centrifugal force will also cause the sliding shoveling block 5497 to slide along the second support rod 5496 to remove the accumulated oil stains and dirt on the shoveling plate 5495, avoiding the long-term presence of stains on the shoveling plate 5495 affecting its scraping effect.

[0047] The side of the blocking block 548 away from the telescopic spring 547 is in contact with the filter plate in the installed state, and the outer surface of the sliding shoveling block 5497 is in contact with the outer surface of the shoveling plate 5495.

[0048] AsFigures 11-12 As shown in the figure, the purification mechanism 55 includes a bottom box 551 arranged at the bottom of the circular frame plate 541. An air inlet 552 connected to the connection pipe 511 is arranged on the bottom box 551. A first telescopic rod 553 is fixedly connected to the bottom of the bottom box 551. The output end of the first telescopic rod 553 is fixedly connected to a second support plate 554. An electromagnet plate 555 is arranged on the top of the second support plate 554. A third support rod 557 is fixedly connected to the outer surface of the electromagnet plate 555. A catalytic conversion layer 558 is slidably connected to the outer surface of the third support rod 557. A magnetic block 5511 is arranged at the bottom of the catalytic conversion layer 558. The electromagnet plate 555 can generate magnetic properties the same as and opposite to those of the magnetic block 5511. An isolation arc plate 559 is arranged on the top of the catalytic conversion layer 558. The electromagnet plate 555 is connected to a power supply 5510 through a wire. A pulling plate 5512 is slidably connected to the outer surface of the bottom box 551. A brushing mechanism 556 for cleaning the catalytic conversion layer 558 is also arranged on the bottom box 551.

[0049] After the air enters the circular frame plate 541, the first telescopic rod 553 will also move upward, so that the catalytic conversion layer 558 is in the air flow direction, adsorbing corrosive gases such as sulfur dioxide and hydrogen sulfide in the air. After the surface of the catalytic conversion layer 558 comes into contact with a large amount of corrosive gases such as sulfur dioxide and hydrogen sulfide and becomes ineffective, at this time, by pulling the pulling plate 5512, the power supply 5510 will energize the electromagnet plate 555, so that it generates a magnetic force on the magnetic block 5511, thereby adsorbing the catalytic conversion layer 558 to slide along the third support rod 557.

[0050] While the brushing mechanism 556 is working, the first telescopic rod 553 will pull back every once in a while, so that the isolation arc plate 559 makes the bottom box 551 in a closed space. At the same time, the variable frequency motor 52 will drive the first rotating shaft 56 to stop where the blocking block 59 obstructs the air flow in the air inlet pipe 66, so that the just inhaled air flows from the ventilation groove 510 and the connection pipe 511 to the back of the catalytic conversion layer 558, realizing the reverse inflation of the catalytic conversion layer 558, and further separating the scraped ineffective part from the catalytic conversion layer 558.

[0051] As Figure 13 shown, the brushing mechanism 556 includes a support frame 5561. A second telescopic rod 5562 is fixedly connected to the outer surface of the support frame 5561. The output end of the second telescopic rod 5562 is fixedly connected to a third support plate 5563. A rotating block 5564 is rotatably connected to the outer surface of the third support plate 5563. A support arm 5565 is fixedly connected to the outer surface of the rotating block 5564. A brush plate 5566 is fixedly connected to the outer surface of the support arm 5565. A rack 5567 meshing with the gear 5493 is fixedly connected to one end of the brush plate 5566.

[0052] ​Adjust the angle of the rotating block 5564 so that the brush plate 5566 faces upward. The second telescopic rod 5562 will perform reciprocating operations of extending and retracting, thereby driving the brush plate 5566 to brush the surface of the catalytic conversion layer 558, removing the ineffective parts, enabling normal adsorption of corrosive gases subsequently. At the same time, the rack 5567 will engage with the gear 5493, and the rotation of the gear 5493 will be driven as the rack 5567 moves.

[0053] The power supply 5510 is arranged on the top of the second support plate 554, and the rotating block 5564 can be adjusted to make the brush plate 5566 contact the catalytic conversion layer 558.

[0054] The specific working process is as follows: During operation, the variable frequency speed regulator 53 will, according to the data transmitted by the second temperature sensor 64, control the torque and speed of the variable frequency motor 52 when the temperature rises rapidly, thereby increasing the rotation speed of the first rotating shaft 56 and the fan blade 57. During the process of the cooling gas being inhaled into the circular frame plate 541, the filter net 542 will block large particle impurities, and at the same time, the filter cotton in the clamping frame 545 will block minute dust. At the same time, after the air enters the circular frame plate 541, the first telescopic rod 553 will also move upward, making the catalytic conversion layer 558 in the air flow direction, adsorbing corrosive gases such as sulfur dioxide and hydrogen sulfide in the air, and preventing the corrosive gases in the mine air from entering the stator-rotor unit 6.

[0055] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art and related fields without creative efforts shall fall within the protection scope of the present invention. The structures, devices, and operation methods not specifically described and explained in the present invention, unless otherwise specified and limited, are implemented according to the conventional means in the art.

Claims

1. A mining motor that uses an external fan of the motor for efficient heat dissipation, 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 checking the temperature change of the housing is arranged 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 arranged in the stator core, an air outlet is arranged at the top of one of the stator cores, two temperature sensors are symmetrically arranged at both ends of the stator winding, an outer plate is arranged on one side of the stator winding, an air inlet pipe is arranged on the outer surface of the outer plate, and circular holes are evenly arranged on the stator core, and an inner tube is arranged in the circular hole.

2. A mining motor that uses an external fan to dissipate heat efficiently according to claim 1, characterized in that: The stator-rotor unit further comprises 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 arranged on one side of the built-in rotating shaft close to the inner end cover, and an isolation net is arranged on the outer surface of the inner end cover; The two 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 external fan unit comprises an outer box arranged on the rear end cover, a variable frequency motor is arranged on one side of the outer box, a variable frequency speed regulator is arranged on the variable frequency motor, and the torque and speed of the variable frequency motor can be accurately controlled, 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 with a 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, the end of the support rod 1 away from the rotating shaft 1 is fixedly connected with a blocking block, the blocking block 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 for blocking impurities in the air, the bottom of the isolation mechanism is provided with a purification mechanism for absorbing 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.

5. A mining motor that uses an external fan to dissipate heat efficiently according to claim 4, 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, and a bottom block is arranged on the inner wall of the circular frame plate at one end close to the filter screen, and the inner wall of the bottom block is rotatably connected with a rotating shaft 2, and both ends of the rotating shaft 2 are fixedly connected with 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 a telescopic spring is fixedly connected to the outer surface of the support block 1, and a resist block is fixedly connected to the end of the telescopic spring away from the support block 1, and a cleaning mechanism for self-cleaning the filter screen is arranged on the outer surface of the circular frame plate.

6. A mining motor that uses an external fan to dissipate heat efficiently according to claim 5, 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.

7. A mining motor that uses an external fan to dissipate heat efficiently according to claim 6, 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.

8. The mining motor according to claim 4, which adopts an external fan of the motor for efficient heat dissipation, is characterized in that: 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 with a telescopic rod 1, the output end of the telescopic rod 1 is fixedly connected with 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 with a support rod 3, the outer surface of the support rod 3 is slidably connected with 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 with a pulling plate, and the bottom box is also provided with a brushing mechanism for cleaning the catalytic conversion layer.

9. A mining motor that uses an external fan to dissipate heat efficiently according to claim 8, characterized in that: The brushing mechanism includes a support frame, the outer surface of the support frame is fixedly connected to a telescopic rod 2, the output end of the telescopic rod 2 is fixedly connected to a support plate 3, the outer surface of the 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.

10. A mining motor that uses an external fan to dissipate heat efficiently according to claim 9, characterized in that: The power source is arranged on the top of the second supporting plate, and the rotating block can be adjusted to make the brush plate contact with the catalytic conversion layer.

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