Low-voltage explosion-proof and dust explosion-proof permanent magnet motor

Abstract

The invention relates to the technical field of explosion-proof permanent magnet motors, and discloses a low-voltage explosion-proof dust explosion-proof permanent magnet motor which comprises an explosion-proof shell, a front end cover and a rear end cover, the front end cover and the rear end cover are arranged on the two sides of the explosion-proof shell respectively, and the front end cover and the rear end cover are both attached to the explosion-proof shell. And a dustproof heat dissipation mechanism is arranged on the rear end cover. Through the design of a dustproof heat dissipation mechanism, a connecting rod drives fan blades and a U-shaped plate to rotate, after the fan blades rotate, external airflow is sucked from an air inlet hole to achieve the purpose of air cooling, before the airflow enters, a filter screen filters dust, a cleaning layer cleans away dust on the filter screen when passing through the filter screen, and when passing through a scraper blade, the dust on the filter screen is cleaned away by the cleaning layer; the scraper blade scrapes off dust on the cleaning layer, air-cooled gas is finally discharged through the exhaust hopper, the scraped-off dust can be quickly blown away, the situation that dust explosion is possibly caused by dust gathering is avoided, the application range is wider, and safety is higher.

Description

Technical Field

[0001] The invention relates to the technical field of explosion-proof permanent magnet motors, in particular to a low-voltage flameproof and dust explosion-proof permanent magnet motor. Background Art

[0002] The permanent magnet synchronous motor is mainly composed of components such as the stator, rotor and end cover. The rotor can be made into a solid form or pressed from laminated sheets, on which permanent magnet materials are installed. Compared with traditional motors, permanent magnet motors have significant advantages such as simple structure, reliable operation, small size, light weight, low loss, high efficiency, and flexible and diverse shapes and sizes of motors. The so-called flameproof motor refers to a motor with a flameproof casing. The flameproof casing is required to withstand the internal explosion pressure without damage and prevent the explosion flame from spreading outside the shell. Therefore, the flameproof casing should have both explosion-resistant and flameproof properties.

[0003] The Chinese patent application with publication number CN116979740B proposes a permanent magnet synchronous motor with an external explosion-proof mechanism, including a casing, the interior of the explosion-proof casing is divided into a first cavity and a second cavity by a first partition, the interior of the first cavity is provided with auxiliary heat dissipation fan blades, the auxiliary heat dissipation fan blades are fixedly arranged on a support shaft, the support shaft is keyed to the output shaft inside the casing, the interior of the second cavity is provided with a heat dissipation explosion-proof mechanism, and the outer end side wall of the explosion-proof casing is provided with a high temperature display mechanism. The heat inside the explosion-proof casing can be transmitted to the sodium bicarbonate particles, and the sodium bicarbonate particles are decomposed by heat. When the sodium bicarbonate particles decompose, they can absorb heat and accelerate the heat dissipation efficiency of the casing. When an explosion occurs inside the casing, its internal air pressure and temperature increase rapidly, and the air pressure can enter the interior of the explosion-proof casing to release pressure using the heat dissipation holes, and the explosion-proof buffer airbag can play a buffering role and play an explosion buffering function.

[0004] The above device improves the overall explosion-proof performance of the device by setting the function of explosion-proof buffer, but its explosion-proof function is relatively single. When dealing with work scenes such as dust workshops, due to the need to meet the heat dissipation function of the motor, its dust particles may enter the shell through the heat dissipation gap and accumulate. As the dust accumulation increases, there will be a risk of dust explosion. The corresponding scope of application is limited. Therefore, a low-voltage flameproof and dust explosion-proof permanent magnet motor is proposed here to solve the above problems. Summary of the invention

[0005] In order to solve the above-mentioned problems, the present invention provides a low-voltage flameproof and dust explosion-proof permanent magnet motor.

[0006] The present invention provides a low-voltage flameproof and dust explosion-proof permanent magnet motor adopts the following technical solution:

[0007] A low-voltage flameproof and dust-proof permanent magnet motor comprises an explosion-proof housing, a front cover and a rear cover, wherein the front cover and the rear cover are respectively arranged on both sides of the explosion-proof housing, and both the front cover and the rear cover are fitted with the explosion-proof housing, and a dust-proof heat dissipation mechanism is arranged on the rear cover, a stator core is fixedly connected inside the explosion-proof housing, a stator winding is fixedly connected inside the stator core, a rotor is arranged inside the stator winding, and an output shaft and a square rod are fixedly connected at both ends of the rotor;

[0008] The dust-proof heat dissipation mechanism includes a transverse plate, which is fixedly connected to the inside of the rear end cover, a connecting rod is arranged inside the rear end cover, a fan blade is fixedly connected to the outside of the connecting rod, a sleeve is integrally formed at one end of the connecting rod, the sleeve passes through the transverse plate and is rotatably connected to the transverse plate, one end of the square rod extends into the inside of the sleeve and matches the sleeve, an auxiliary frame is fixedly connected to one side of the rear end cover, the connecting rod passes through the rear end cover and one side wall of the auxiliary frame in turn, and the connecting rod is rotatably connected to the rear end cover and the auxiliary frame respectively, a filter is fixedly connected to the auxiliary frame, one end of the connecting rod is fixedly connected to a U-shaped plate, and the inside of the U-shaped plate A cleaning layer is fixedly connected to both sides, a ring frame is fixedly connected to one side of the front end cover, an air inlet hole is opened on one side wall of the rear end cover, an exhaust hole is opened on one side wall of the front end cover, a first pipe is fixedly connected to the bottom of the ring frame, a second pipe is arranged at the bottom of the explosion-proof shell, one end of the second pipe is fixedly connected to a bellows, one end of the bellows is fixedly connected to a joint pipe, the joint pipe extends into the interior of the first pipe and matches the first pipe, the other end of the second pipe is fixedly connected to an exhaust scoop, a scraper and a guide plate are respectively fixedly connected to the outside of the auxiliary frame, and the guide plate is arranged on the top of the scraper.

[0009] By adopting the above technical scheme, when working, the rotor rotates, and the connecting rod drives the fan blades and the U-shaped plate to rotate. After the fan blades rotate, the external airflow is sucked in from the air inlet, and flows through the inside of the explosion-proof shell and then discharged through the exhaust holes on the side wall of the front cover, so as to achieve the purpose of air cooling. Before the air flow enters, the filter screen filters the dust, and the cleaning layer cleans the dust on the filter screen when passing through the filter screen, and when passing through the scraper, the scraper scrapes the dust on the cleaning layer, and the air after air cooling is finally discharged through the exhaust hopper, which can quickly blow away the scraped dust. In this way, on the basis of achieving cooling, it can also avoid dust accumulation that may cause dust explosion, with a wider range of applications and higher safety.

[0010] Preferably, the output shaft passes through the front end cover and is rotatably connected to the front end cover, two supporting feet are fixedly connected to the bottom of the explosion-proof shell, a first support plate and a second support plate are fixedly connected to the outside of the second pipe, two stabilizing plates are fixedly connected to one side of the joint pipe, a first rubber strip is fixedly connected to the inside of the first pipe, and a second rubber strip is fixedly connected to the outside of the joint pipe, and the first rubber strip and the second rubber strip are staggered and meshed with each other.

[0011] By adopting the above technical solution, the first support plate and the second support plate can provide support for the second pipeline.

[0012] Preferably, both ends of the first support plate and the second support plate are fixedly connected to the inner sides of the two supporting feet respectively, and the two stabilizing plates both pass through the first support plate.

[0013] By adopting the above technical solution, after the stabilizing plate passes through the first supporting plate, it can provide limiting support for the joint pipe so that it can only move horizontally.

[0014] Preferably, an auxiliary plate is fixedly connected to the rear end cover, a positioning plate is fixedly connected to the outside of the second pipe, a positioning groove is opened on the auxiliary plate, and the positioning plate passes through the positioning groove.

[0015] By adopting the above technical solution, after the positioning plate passes through the positioning groove, it can provide support for the second pipeline.

[0016] Preferably, the dust-proof and heat-dissipating mechanism includes a static-elimination component, which includes a mounting seat, a bonding plate and a frame plate. The mounting seat is fixedly connected to the outside of the rear end cover, the bonding plate extends into the interior of the mounting seat and matches the mounting seat, the frame plate is fixedly connected to the outside of the mounting seat, the bonding plate is bonded to the outer surface of the rear end cover, the bottom of the bonding plate is fixedly connected to a wire, and the bottom of the wire is fixedly connected to a bottom touch plate.

[0017] By adopting the above technical solution, static electricity can be introduced into the ground through the bonding plate, the wire and the bottom contact plate.

[0018] Preferably, two clamping plates are slidably connected inside the frame plate, and both clamping plates extend out of the frame plate. The two clamping plates respectively penetrate the two side walls of the mounting seat, and holes are opened on both sides of the bonding plate. The clamping plates extend into the holes and match the holes.

[0019] By adopting the above technical solution, after the clamping plate extends into the hole groove, it can provide support for the bonding plate.

[0020] Preferably, a bidirectional threaded rod is rotatably connected inside the frame plate, the bidirectional threaded rod passes through the two clamping plates in sequence, and the bidirectional threaded rod is respectively connected to the two clamping plates through threads.

[0021] By adopting the above technical solution, the threads at both ends of the bidirectional threaded rod have opposite directions, which can drive the two external clamping plates to move towards or away from each other.

[0022] Preferably, the top of the bottom touch plate is fixedly connected to a frame plate, the inner side of the frame plate is slidably connected to a lifting plate, the bottom of the lifting plate is fixedly connected to an insertion rod, the top of the lifting plate is rotatably connected to a threaded control rod, the threaded control rod passes through the top wall of the frame plate and is threadedly connected to the frame plate.

[0023] By adopting the above technical solution, the threaded control rod can drive the lifting plate to move up and down after rotating.

[0024] Preferably, the explosion-proof shell is provided with an installation component, and the installation component includes a first plug board integrally connected to one side of the front end cover, a first socket is opened on one side wall of the explosion-proof shell, the first plug board extends into the first socket and matches the first socket, a second plug board is integrally formed on the other side of the explosion-proof shell, a second socket is opened on one side of the rear end cover, the second plug board extends into the second socket and matches the second socket, a plug block is fixedly connected to the outer side of the front end cover, a plug socket is fixedly connected to the outer side of the explosion-proof shell, the plug block extends into the plug socket and matches the plug socket, the plug block and the plug socket are connected by a first bolt, and the second plug board is connected to the rear end cover by a second bolt.

[0025] By adopting the above technical solution, the assembly is carried out by plug-in combination and fixing with matching bolts, and the strength after assembly is higher.

[0026] In summary, the present invention includes the following beneficial technical effects:

[0027] 1. A low-voltage flameproof and dust-proof permanent magnet motor. Through the design of dust-proof and heat-dissipating mechanism, when the rotor rotates, the connecting rod drives the fan blades and the U-shaped plate to rotate. After the fan blades rotate, the external airflow is sucked in from the air inlet to achieve the purpose of air cooling. Before the airflow enters, the filter screen filters the dust, and the cleaning layer cleans the dust on the filter screen when passing through the filter screen, and when passing through the scraper, the scraper scrapes the dust on the cleaning layer, and the air after air cooling is finally discharged through the exhaust scoop, which can quickly blow away the scraped dust. On the basis of achieving cooling, it can also avoid dust accumulation and possible dust explosion, with a wider range of applications and higher safety.

[0028] 2. A low-voltage flameproof and dust-proof permanent magnet motor. Through the design of static electricity removal components, the bottom touch plate is placed on the ground. Static electricity can be guided to the ground through the bonding plate, wires and bottom touch plate, thereby reducing the risk of explosion caused by static electricity. When the bottom touch plate is placed, if it is in soft terrain, the threaded control rod can also be rotated. The threaded control rod drives the lifting plate to move, and the lifting plate drives the insertion rod to be inserted into the ground, thereby enhancing the drainage effect of static electricity and ensuring that the bottom touch plate can be placed stably, effectively ensuring the reliability of static electricity elimination work. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the structure of the present invention;

[0030] Figure 2 It is a disassembled diagram of the structure of the present invention;

[0031] Figure 3 for Figure 2 A in the enlarged view;

[0032] Figure 4 is a cross-sectional view of the structure of the present invention;

[0033] Figure 5 It is a rear view of the present invention;

[0034] Figure 6 This is a disassembled diagram of the sleeve and the square rod in the present invention;

[0035] Figure 7 It is a structural schematic diagram of the auxiliary frame in the present invention;

[0036] Figure 8 for Figure 7 The enlarged view of point B in the figure;

[0037] Fig. 9 It is a structural schematic diagram of the U-shaped plate in the present invention;

[0038] Fig.10 It is a disassembled diagram of the joint pipe and the first pipeline in the present invention;

[0039] Fig.11 This is a disassembled view of the mounting seat and the bonding plate in the present invention.

[0040] Explanation of the reference numerals: 1. explosion-proof housing; 2. front cover; 3. rear cover; 4. dust-proof heat dissipation mechanism; 41. horizontal plate; 42. connecting rod; 43. fan blade; 44. sleeve; 45. auxiliary frame; 46. filter screen; 47. U-shaped plate; 48. cleaning layer; 49. annular frame; 491. air inlet; 492. exhaust hole; 493. first pipe; 494. second pipe; 495. bellows; 496. joint pipe; 497. exhaust scoop; 498. scraper; 499. guide plate; 481. support foot; 482. first support plate; 483. second support plate; 484. stabilizing plate; 485. first rubber Rubber strip; 486, second rubber strip; 487, auxiliary plate; 488, positioning plate; 489, mounting seat; 471, bonding plate; 472, frame plate; 473, wire; 474, bottom contact plate; 475, clamping plate; 476, bidirectional threaded rod; 477, frame plate; 478, lifting plate; 479, plug rod; 461, threaded control rod; 5, stator core; 6, stator winding; 7, rotor; 8, output shaft; 9, square rod; 10, mounting assembly; 101, first plug board; 102, first socket; 103, second plug board; 104, second socket; 105, plug block; 106, plug seat. DETAILED DESCRIPTION

[0041] The following is combined with Figure 1-11 The present invention is described in further detail.

[0042] The present invention discloses a low-voltage flameproof and dust-proof permanent magnet motor. Figure 1-11 A low-voltage flameproof and dust-proof permanent magnet motor comprises an explosion-proof housing 1, a front cover 2 and a rear cover 3, the front cover 2 and the rear cover 3 are respectively arranged on both sides of the explosion-proof housing 1, and the front cover 2 and the rear cover 3 are both fitted with the explosion-proof housing 1, and a dust-proof heat dissipation mechanism 4 is arranged on the rear cover 3, a stator core 5 is fixedly connected inside the explosion-proof housing 1, a stator winding 6 is fixedly connected inside the stator core 5, a rotor 7 is arranged inside the stator winding 6, and an output shaft 8 and a square rod 9 are respectively fixedly connected at both ends of the rotor 7;

[0043] The dust-proof heat dissipation mechanism 4 includes a transverse plate 41, which is fixedly connected to the inside of the rear end cover 3. A connecting rod 42 is arranged inside the rear end cover 3. A fan blade 43 is fixedly connected to the outside of the connecting rod 42. A sleeve 44 is integrally formed at one end of the connecting rod 42. The sleeve 44 passes through the transverse plate 41 and is rotatably connected to the transverse plate 41. One end of the square rod 9 extends into the sleeve 44 and matches the sleeve 44. An auxiliary frame 45 is fixedly connected to one side of the rear end cover 3. The connecting rod 42 passes through one side wall of the rear end cover 3 and the auxiliary frame 45 in sequence, and the connecting rod 42 is rotatably connected to the rear end cover 3 and the auxiliary frame 45 respectively. A filter screen 46 is fixedly connected to the auxiliary frame 45. A U-shaped plate 47 is fixedly connected to one end of the connecting rod 42. Cleaning layers 48 are fixedly connected to both sides of the inner side of the U-shaped plate 47. An annular frame 49 is fixedly connected to one side of the front end cover 2. An air inlet 491 is provided on one side wall of the rear end cover 3. An exhaust hole 492 is provided on one side wall of the front end cover 2. A first pipe 493 is fixedly connected to the bottom of the annular frame 49.

[0044] A second pipe 494 is provided at the bottom of the explosion-proof shell 1, one end of the second pipe 494 is fixedly connected to a bellows 495, one end of the bellows 495 is fixedly connected to a joint pipe 496, the joint pipe 496 extends into the first pipe 493 and matches the first pipe 493, the other end of the second pipe 494 is fixedly connected to an exhaust scoop 497, and a scraper 498 and a guide plate 499 are fixedly connected to the outside of the auxiliary frame 45, and the guide plate 499 is arranged on the top of the scraper 498. When working, the rotor 7 rotates, and the connecting rod 42 drives the fan blade 43 and the U-shaped plate 47 to rotate. After the fan blade 43 rotates, the external airflow is directed from the air inlet The air is sucked in through the hole 491, flows through the interior of the explosion-proof housing 1, and is discharged through the exhaust hole 492 on the side wall of the front cover 2, so as to achieve the purpose of air cooling. Before the air flow enters, the filter 46 filters the dust, and the cleaning layer 48 cleans the dust on the filter 46 when passing through the filter 46, and when passing through the scraper 498, the scraper 498 scrapes the dust on the cleaning layer 48, and the air after air cooling is finally discharged through the exhaust hopper 497, which can quickly blow away the scraped dust. On the basis of achieving cooling, it can also avoid dust accumulation and possible dust explosion, with a wider range of applications and higher safety.

[0045] The output shaft 8 passes through the front end cover 2 and is rotatably connected to the front end cover 2. Two supporting legs 481 are fixedly connected to the bottom of the explosion-proof shell 1. The outside of the second pipe 494 is respectively fixedly connected to the first support plate 482 and the second support plate 483. Two stabilizing plates 484 are fixedly connected to one side of the joint pipe 496. The inside of the first pipe 493 is fixedly connected to the first rubber strip 485, and the outside of the joint pipe 496 is fixedly connected to the second rubber strip 486. The first rubber strip 485 and the second rubber strip 486 are staggered and meshed with each other. The first support plate 482 and the second support plate 483 can provide support for the second pipe 494. The two ends of the first support plate 482 and the second support plate 483 are respectively fixedly connected to the inner sides of the two supporting legs 481. The two stabilizing plates 484 both pass through the first support plate 482. After the stabilizing plate 484 passes through the first support plate 482, it can provide limiting support for the joint pipe 496 so that it can only move horizontally.

[0046] An auxiliary plate 487 is fixedly connected to the rear end cover 3, and a positioning plate 488 is fixedly connected to the outside of the second pipe 494. A positioning groove is opened on the auxiliary plate 487, and the positioning plate 488 passes through the positioning groove. After the positioning plate 488 passes through the positioning groove, it can provide support for the second pipe 494.

[0047] The dustproof heat dissipation mechanism 4 includes a static electricity removal component, which includes a mounting seat 489, a bonding plate 471 and a frame plate 472. The mounting seat 489 is fixedly connected to the outside of the rear end cover 3, the bonding plate 471 extends into the inside of the mounting seat 489 and matches the mounting seat 489, the frame plate 472 is fixedly connected to the outside of the mounting seat 489, the bonding plate 471 is bonded to the outer surface of the rear end cover 3, the bottom of the bonding plate 471 is fixedly connected to a wire 473, and the bottom of the wire 473 is fixedly connected to a bottom touch plate 474, and static electricity can be introduced into the ground through the bonding plate 471, the wire 473 and the bottom touch plate 474;

[0048] Two clamping plates 475 are slidably connected inside the frame plate 472. The two clamping plates 475 extend out of the frame plate 472. The two clamping plates 475 penetrate the two side walls of the mounting seat 489 respectively. Holes are provided on both sides of the fitting plate 471. The clamping plates 475 extend into the holes and match the holes. After the clamping plates 475 extend into the holes, they can provide support for the fitting plate 471. A bidirectional threaded rod 476 is rotatably connected inside the frame plate 472. The bidirectional threaded rod 476 penetrates the two clamping plates 475 in sequence, and the bidirectional threaded rod 476 is respectively connected to the two clamping plates 475 by threads. The threads at both ends of the bidirectional threaded rod 476 are in opposite directions, which can drive the two external clamping plates 475 to move toward or away from each other.

[0049] The top of the bottom touch plate 474 is fixedly connected to a frame plate 477, the inner side of the frame plate 477 is slidably connected to a lifting plate 478, the bottom of the lifting plate 478 is fixedly connected to an insertion rod 479, the top of the lifting plate 478 is rotatably connected to a threaded control rod 461, the threaded control rod 461 penetrates the top wall of the frame plate 477 and is threadedly connected to the frame plate 477, and the threaded control rod 461 can drive the lifting plate 478 to move up and down after rotating.

[0050] The explosion-proof shell 1 is provided with an installation component 10, which includes a first plug-in board 101 integrally connected to one side of the front cover 2, a first plug-in hole 102 is provided on one side wall of the explosion-proof shell 1, the first plug-in board 101 extends into the first plug-in hole 102 and matches with the first plug-in hole 102, a second plug-in board 103 is integrally formed on the other side of the explosion-proof shell 1, a second plug-in hole 104 is provided on one side of the rear end cover 3, the second plug-in board 103 extends into the second plug-in hole 104 and matches with the second plug-in hole 104, a plug-in block 105 is fixedly connected to the outside of the front cover 2, a plug-in socket 106 is fixedly connected to the outside of the explosion-proof shell 1, the plug-in block 105 extends into the plug-in socket 106 and matches with the plug-in socket 106, the plug-in block 105 is connected to the plug-in socket 106 by a first bolt, and the second plug-in board 103 is connected to the rear end cover 3 by a second bolt, and is assembled by plug-in combination and fixing with matching bolts, and the strength after assembly is higher.

[0051] During actual operation, the explosion-proof shell 1, the front cover 2 and the rear cover 3 in the device are all made of explosion-proof materials. After power is turned on, the rotor 7 rotates. The above are all existing technical structures, so the principle structure thereof will not be further described here. When the device is working, the rotor 7 rotates and drives the output shaft 8 and the square rod 9 to rotate synchronously. The square rod 9 drives the sleeve 44 to rotate, and the sleeve 44 drives the connecting rod 42 to rotate. The connecting rod 42 simultaneously drives the fan blades 43 and the U-shaped plate 47 to rotate. After the fan blades 43 rotate, external airflow is introduced to perform the purpose of air cooling and heat dissipation. Specifically, the airflow enters through the filter 46, and then enters the interior of the explosion-proof shell through the air inlet 491, and then enters the front cover 2 and is discharged through the exhaust hole 492 The dust particles on the filter screen 46 can be scraped off when the cleaning layer 48 passes through the scraper 498, and the scraper 498 contacts the cleaning layer 48 and scrapes off the dust on the cleaning layer 48 when the cleaning layer 48 passes through the scraper 498. The airflow discharged from the exhaust hopper 497 can blow the scraped dust, and under the effect of the guide plate 499, the dust particles are blown away to the side away from the filter screen 46, so as to avoid the accumulation of dust and the risk of dust explosion. In this way, the basic explosion-proof function is achieved, and the performance of dust explosion-proof is also achieved.

[0052] At the same time, when the device is used, the bottom contact plate 474 is placed on the ground, and static electricity can be guided to the ground through the bonding plate 471, the wire 473 and the bottom contact plate 474, thereby reducing the risk of explosion caused by static electricity. When the bottom contact plate 474 is placed, if it is in soft terrain, the threaded control rod 461 can also be rotated, and the threaded control rod 461 drives the lifting plate 478 to move, and the lifting plate 478 drives the insertion rod 479 to be inserted into the ground, thereby enhancing the drainage effect of static electricity and ensuring that the bottom contact plate 474 can be stably placed, effectively ensuring the reliability of static electricity elimination work;

[0053] When the joint pipe 496 is connected to the interface of the first pipe 493, the first rubber strip 485 and the second rubber strip 486 are interlaced and meshed with each other, which can improve the sealing of the connection part and the stability after the connection. When it is necessary to remove the bonding plate 471, the two-way threaded rod 476 is directly rotated, and the two-way threaded rod 476 drives the two clamping plates 475 to leave the hole groove on the bonding plate 471, and the bonding plate 471 can be quickly taken out. Correspondingly, when it is necessary to install, the bonding plate 471 is directly placed in the mounting seat 489, and the above steps are repeated to control the clamping plate 475 to be inserted into the hole groove, and the installation of the bonding plate 471 can be completed, and the loading and unloading is more flexible;

[0054] Finally, the front end cover 2, the explosion-proof shell 1 and the rear end cover 3 in the device can be flexibly installed and disassembled. The front end cover 2, the explosion-proof shell 1 and the rear end cover 3 can be disassembled by simply unscrewing the first bolt and the second bolt. During installation, the first plug plate is inserted into the first socket 102, the second plug plate 103 is inserted into the second socket 104, and the plug block 105 is inserted into the socket 106. After the first bolt is screwed into the connecting position between the second plug plate 103 and the second socket 104, and the second bolt is screwed into the connecting position between the plug block 105 and the socket 106, the installation can be quickly completed. The operation is simple and convenient, which is conducive to quick operation.

[0055] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A low-voltage flameproof and dust-proof permanent magnet motor, comprising an explosion-proof housing (1), a front cover (2) and a rear cover (3), characterized in that: The front end cover (2) and the rear end cover (3) are respectively arranged on both sides of the explosion-proof housing (1), and the front end cover (2) and the rear end cover (3) are both in contact with the explosion-proof housing (1); the rear end cover (3) is provided with a dustproof heat dissipation mechanism (4); a stator core (5) is fixedly connected inside the explosion-proof housing (1); a stator winding (6) is fixedly connected inside the stator core (5); a rotor (7) is arranged inside the stator winding (6); and an output shaft (8) and a square rod (9) are respectively fixedly connected at both ends of the rotor (7); The dustproof heat dissipation mechanism (4) comprises a transverse plate (41), the transverse plate (41) is fixedly connected to the inside of the rear end cover (3), a connecting rod (42) is arranged inside the rear end cover (3), a fan blade (43) is fixedly connected to the outside of the connecting rod (42), a sleeve (44) is integrally formed at one end of the connecting rod (42), the sleeve (44) passes through the transverse plate (41) and is rotatably connected to the transverse plate (41), and one end of the square rod (9) extends into the sleeve (44) The rear end cover (3) is fixedly connected to an auxiliary frame (45) on one side, the connecting rod (42) passes through the rear end cover (3) and one side wall of the auxiliary frame (45) in sequence, and the connecting rod (42) is rotatably connected to the rear end cover (3) and the auxiliary frame (45) respectively, the auxiliary frame (45) is fixedly connected to a filter screen (46), one end of the connecting rod (42) is fixedly connected to a U-shaped plate (47), both sides of the inner side of the U-shaped plate (47) are fixedly connected to a cleaning layer (48), one side of the front end cover (2) is fixedly connected to an annular frame (49), one side wall of the rear end cover (3) is provided with an air inlet hole (491), one side wall of the front end cover (2) is provided with an exhaust hole (492), the bottom of the annular frame (49) is fixedly connected to a first pipe (493), the bottom of the explosion-proof housing (1) is provided with a second pipe (494), one end of the second pipe (494) is fixedly connected to a bellows (495), one end of the bellows (495) is fixedly connected to a joint pipe (496), the joint pipe (496) extends into the interior of the first pipe (493) and matches the first pipe (493), the other end of the second pipe (494) is fixedly connected to an exhaust scoop (497), and the outer side of the auxiliary frame (45) is respectively fixedly connected to a scraper (498) and a guide plate (499), and the guide plate (499) is arranged on the top of the scraper (498).

2. A low-voltage flameproof and dust-proof permanent magnet motor according to claim 1, characterized in that: The output shaft (8) passes through the front end cover (2) and is rotatably connected to the front end cover (2); two supporting legs (481) are fixedly connected to the bottom of the explosion-proof housing (1); a first support plate (482) and a second support plate (483) are fixedly connected to the outside of the second pipe (494), respectively; two stabilizing plates (484) are fixedly connected to one side of the joint pipe (496); a first rubber strip (485) is fixedly connected to the inside of the first pipe (493); a second rubber strip (486) is fixedly connected to the outside of the joint pipe (496); the first rubber strip (485) and the second rubber strip (486) are staggered and meshed with each other.

3. A low-voltage flameproof and dust-proof permanent magnet motor according to claim 2, characterized in that: The two ends of the first support plate (482) and the second support plate (483) are respectively fixedly connected to the inner sides of the two supporting legs (481), and the two stabilizing plates (484) both penetrate the first support plate (482).

4. A low-voltage flameproof and dust-proof permanent magnet motor according to claim 1, characterized in that: An auxiliary plate (487) is fixedly connected to the rear end cover (3), a positioning plate (488) is fixedly connected to the outside of the second pipe (494), a positioning groove is provided on the auxiliary plate (487), and the positioning plate (488) passes through the positioning groove.

5. The low-voltage flameproof and dust explosion-proof permanent magnet motor according to claim 1 is characterized in that: The dustproof heat dissipation mechanism (4) includes a static electricity removal component, which includes a mounting seat (489), a bonding plate (471) and a frame plate (472). The mounting seat (489) is fixedly connected to the outside of the rear end cover (3), the bonding plate (471) extends into the interior of the mounting seat (489) and matches the mounting seat (489), the frame plate (472) is fixedly connected to the outside of the mounting seat (489), the bonding plate (471) is bonded to the outer surface of the rear end cover (3), the bottom of the bonding plate (471) is fixedly connected to a wire (473), and the bottom of the wire (473) is fixedly connected to a bottom touch plate (474).

6. A low-voltage flameproof and dust-proof permanent magnet motor according to claim 5, characterized in that: Two clamping plates (475) are slidably connected inside the frame plate (472), and the two clamping plates (475) extend out of the frame plate (472). The two clamping plates (475) respectively penetrate the two side walls of the mounting seat (489), and holes are opened on both sides of the fitting plate (471), and the clamping plates (475) extend into the inside of the holes and match the holes.

7. The low-voltage flameproof and dust explosion-proof permanent magnet motor according to claim 5, characterized in that: A bidirectional threaded rod (476) is rotatably connected inside the frame plate (472), and the bidirectional threaded rod (476) passes through the two clamping plates (475) in sequence, and the bidirectional threaded rod (476) is respectively connected to the two clamping plates (475) through threads.

8. The low-voltage flameproof and dust explosion-proof permanent magnet motor according to claim 5 is characterized in that: The top of the bottom touch plate (474) is fixedly connected to a frame plate (477), the inner side of the frame plate (477) is slidably connected to a lifting plate (478), the bottom of the lifting plate (478) is fixedly connected to an insertion rod (479), the top of the lifting plate (478) is rotatably connected to a threaded control rod (461), and the threaded control rod (461) passes through the top wall of the frame plate (477) and is threadedly connected to the frame plate (477).

9. The low-voltage flameproof and dust explosion-proof permanent magnet motor according to claim 1, characterized in that: The explosion-proof housing (1) is provided with a mounting assembly (10), the mounting assembly (10) comprising a first plug board (101) integrally connected to one side of the front end cover (2), a first plug hole (102) being provided on one side wall of the explosion-proof housing (1), the first plug board (101) extending into the first plug hole (102) and matching with the first plug hole (102), a second plug board (103) being integrally formed on the other side of the explosion-proof housing (1), a second plug hole (104) being provided on one side of the rear end cover (3), and The second plug plate (103) extends into the second plug hole (104) and matches the second plug hole (104); a plug block (105) is fixedly connected to the outside of the front cover (2); a plug socket (106) is fixedly connected to the outside of the explosion-proof housing (1); the plug block (105) extends into the plug socket (106) and matches the plug socket (106); the plug block (105) and the plug socket (106) are connected by a first bolt; and the second plug plate (103) and the rear cover (3) are connected by a second bolt.

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