A sealing device for dust explosion-proof motor

Abstract

The invention discloses a sealing device for a dust-proof explosion-proof motor, which relates to the technical field of motor sealing devices and comprises an explosion-proof motor body. The output end of the explosion-proof motor body is fixedly connected to a transmission shaft. A fixing clamp is sleeved on the outer wall of the output end of the explosion-proof motor body. Positioning grooves are provided on the inner walls of the top and bottom ends of the fixing clamp. An auxiliary sealing mechanism is provided on the outer wall of the transmission shaft. The auxiliary sealing mechanism comprises a first sealing sleeve sleeved on the outer wall of the transmission shaft. The first sealing sleeve is clearance-matched with the transmission shaft. Positioning rods are fixedly connected to the top and bottom of the first sealing sleeve. One end of the two positioning rods close to the fixing clamp is plugged into the positioning groove to keep dust away from the second sealing sleeve and the outer wall of the first sealing sleeve, thereby reducing the amount of dust accumulated on the surface of the second sealing sleeve, avoiding dust from entering the interior of the explosion-proof motor body to cause a fire safety accident, and effectively protecting the equipment at the use site and the life safety of the operators.

Description

Technical Field

[0001] The invention relates to the technical field of motor sealing devices, and in particular to a sealing device for a dust explosion-proof motor. Background Art

[0002] Dust explosion-proof motors are usually used in industries such as coal mining, chemical industry, pharmaceutical industry and food processing. In these places, there are flammable and explosive dusts. The use of explosion-proof motors can minimize safety risks and ensure stable operation of equipment. However, the prior art still has the following defects when used specifically: Due to the special use environment of dust explosion-proof motors and the presence of a large amount of dust around them, in order to avoid fire safety accidents, it is necessary to seal the transmission shaft. Dust explosion-proof motors on the market often use sealing rings for sealing, which can achieve a certain sealing effect in the short term. However, during the long-term use of dust explosion-proof motors, the high temperature of the rotating shaft will accelerate the aging of the sealing ring, and it is easy to cause the sealing ring to deform or move away from the original position, which reduces the sealing effect. In view of this, the present invention proposes a sealing device for a dust explosion-proof motor to compensate for and improve the deficiencies of the prior art. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a sealing device for a dust explosion-proof motor to solve the technical problems raised in the above background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the present invention is: a sealing device for a dust-proof explosion-proof motor, comprising an explosion-proof motor body, the output end of the explosion-proof motor body is fixedly connected to a transmission shaft, the outer wall of the output end of the explosion-proof motor body is sleeved with a fixing clamp, the inner walls of the top and bottom ends of the fixing clamp are both provided with positioning grooves, and the outer wall of the transmission shaft is provided with an auxiliary sealing mechanism.

[0005] Furthermore, the auxiliary sealing mechanism includes a first sealing sleeve sleeved on the outer wall of the transmission shaft, the first sealing sleeve is gap-matched with the transmission shaft, the top and bottom of the first sealing sleeve are fixedly connected with positioning rods, the ends of the two positioning rods close to the fixed clamping ring are plug-matched with the positioning grooves, the end of the first sealing sleeve away from the fixed clamping ring is also fixedly connected with a second sealing sleeve, the opening diameter of the second sealing sleeve is smaller than the opening diameter of the first sealing sleeve, the end of the second sealing sleeve away from the first sealing sleeve is rotatably connected with a rotating disk, the inner wall of the rotating disk on the side away from the second sealing sleeve is evenly fixedly connected with a plurality of dustproof plates, the plurality of dustproof plates are gap-matched with the transmission shaft, and a clamping rod is also provided on the outer wall of the end of the rotating disk and on one side of the dustproof plate.

[0006] Furthermore, a support plate is symmetrically fixedly connected to the outer wall of the end of the rotating disk and located on one side of the dustproof plate. The clamping rod is arranged to slide through the inner wall of the support plate. A first support spring is fixedly connected to the bottom of the support plate. The end of the first support spring away from the support plate is fixedly connected to the bottom side wall of the clamping rod. Two of the clamping rod, support plate and first support spring are symmetrically arranged on the outer wall of the end of the rotating disk.

[0007] Furthermore, a plurality of scraping plates are evenly and fixedly connected to the outer wall of the rotating disk on one side close to the second sealing sleeve, and the plurality of scraping plates are all inclined at thirty degrees on the surface of the second sealing sleeve.

[0008] Furthermore, a dust cover is fixedly connected to the inner wall of the opening on one side of the first sealing sleeve close to the second sealing sleeve, and the outline shape of the dust cover is truncated cone-shaped. A ring is rotatably connected to the inner wall of the opening on one end of the dust cover close to the positioning rod, and the ring is plugged into the transmission shaft. A plurality of cleaning strips are evenly and fixedly connected to the inner wall of the ring close to the dustproof plate.

[0009] Furthermore, a rubber sleeve is fixedly connected to the inner wall of the opening on one side of the first sealing sleeve close to the fixed clamp ring, and an L-shaped bracket is also fixedly connected to the inner wall of the opening on one side of the first sealing sleeve close to the fixed clamp ring. A pressure plate is slidably connected inside the L-shaped bracket, and one end of the pressure plate away from the L-shaped bracket is in abutment with the inner wall of the fixed clamp ring. A second supporting spring is fixedly connected to the bottom of one end of the pressure plate away from the fixed clamp ring, and the bottom of the second supporting spring is fixedly connected to the top inner wall of the L-shaped bracket.

[0010] Furthermore, the L-shaped bracket, the pressure plate and the second support spring are uniformly arranged in plurality on the inner wall of the first sealing sleeve, and the rubber sleeve is also plug-fitted with the fixing clamp ring.

[0011] Furthermore, a lower ash box is fixedly connected to the bottom of the second sealing sleeve near the first sealing sleeve, the lower ash box is communicated with the interior of the second sealing sleeve, and a collecting tube is threadedly connected to the bottom of the lower ash box, which is in turn communicated with the interior of the lower ash box.

[0012] Furthermore, a fastener is threadedly connected to the connection between the fixing clamp ring and the positioning rod, and the bottom of the fastener is in contact with the outer wall of the output end of the explosion-proof motor body.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The dustproof plate rotates synchronously with the transmission shaft, which can act as a wind barrier during the rotation of the transmission shaft, so that the dust changes its direction in front of the dustproof plate, thereby reducing the possibility of dust entering the first sealing sleeve through the opening of the rotating disk. By setting the scraper plate, not only can the dust on the outer wall of the second sealing sleeve be scraped off, but the wind force generated by the rotation of the scraper plate can also blow the dust away, so as to achieve the purpose of keeping the dust away from the second sealing sleeve and the outer wall of the first sealing sleeve, thereby reducing the accumulation of dust on the surface of the second sealing sleeve, avoiding dust from entering the explosion-proof motor body to cause fire safety accidents, and effectively protecting the equipment at the use site and the life safety of operators; Among them, the two fasteners at the top and the bottom are used to contact the outer wall of the output end of the explosion-proof motor body at the same time, so that the fixing clamp ring can be firmly fixed to the outer wall of the output end of the explosion-proof motor body, and the first sealing sleeve can be connected to the fixing clamp ring through the positioning rod, so as to achieve the purpose of preliminary dust prevention at the connection between the explosion-proof motor body and the transmission shaft. In addition, the relatively simple installation method improves the convenience of operation, shortens the time consumed by installation, and avoids the cumbersome installation steps that lead to increased consumables costs; (2) The rubber sleeve can play a sealing role at the joint between the fixed clamp ring and the first sealing sleeve, thereby preventing dust from entering through the gap between the first sealing sleeve and the fixed clamp ring, improving the protection effect of the transmission shaft, and cooperating with the rebound characteristics of the second support spring, so that the pressure plate can be reset to support the rubber sleeve, so that the side of the rubber sleeve away from the pressure plate is tightly fitted with the first sealing sleeve and the inner wall of the fixed clamp ring, thereby avoiding the problem of poor sealing. At the same time, multiple pressure plates and the same number of second support springs are provided, which can support the rubber sleeve in all directions, ensure the reliability of the sealing effect, and reduce the probability of dust entering; (3) The circular ring rotates with the cleaning strip to remove a small amount of dust inside the dust hood. Through cyclic cleaning, the adhesion of the dust is reduced, so that it can slide down quickly, ensuring the cleanliness of the inside of the dust hood. The dust can slide into the collection tube through the lower ash box, achieving the purpose of collecting dust while cleaning. In addition, the collection tube is regularly removed from the bottom of the lower ash box to uniformly handle the dust, making dust collection more convenient and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the main stereoscopic structure of the present invention; Figure 2 It is a three-dimensional structural schematic diagram of the related parts of the auxiliary sealing mechanism of the present invention; Figure 3 It is a side view stereoscopic structural diagram of the relevant parts of the auxiliary sealing mechanism of the present invention; Figure 4 It is a three-dimensional structural cross-sectional view of the relevant components of the first sealing sleeve of the present invention; Figure 5 It is a three-dimensional structural schematic diagram of the relevant components of the dust cover of the present invention; Figure 6 It is a three-dimensional structural schematic diagram of the relevant parts of the fixing clamp ring of the present invention; Figure 7 It is a three-dimensional structural cross-sectional view of the rubber sleeve related parts of the present invention.

[0015] The numbers in the figure are: 1. explosion-proof motor body; 2. transmission shaft; 3. fixing snap ring; 301. positioning groove; 401. first sealing sleeve; 402. positioning rod; 403. second sealing sleeve; 404. rotating disk; 405. dust plate; 406. clamping rod; 501. support plate; 502. first support spring; 601. scraper plate; 701. dust cover; 702. ring; 703. cleaning strip; 801. rubber sleeve; 802. L-shaped bracket; 803. pressure plate; 804. second support spring; 901. lower ash box; 902. collecting cylinder; 1001. fastener. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention; Embodiments of the present invention Please refer to Figures 1 to 7 As shown, a sealing device for a dust explosion-proof motor comprises an explosion-proof motor body 1, the output end of the explosion-proof motor body 1 is fixedly connected to a transmission shaft 2, a fixed clamp ring 3 is sleeved on the outer wall of the output end of the explosion-proof motor body 1, and positioning grooves 301 are provided on the inner walls of the top and bottom ends of the fixed clamp ring 3, and an auxiliary sealing mechanism is provided on the outer wall of the transmission shaft 2; The auxiliary sealing mechanism includes a first sealing sleeve 401 sleeved on the outer wall of the transmission shaft 2, the first sealing sleeve 401 is clearance-matched with the transmission shaft 2, the top and bottom of the first sealing sleeve 401 are fixedly connected with positioning rods 402, one end of the two positioning rods 402 close to the fixed clamping ring 3 is plugged into the positioning groove 301, the end of the first sealing sleeve 401 away from the fixed clamping ring 3 is also fixedly connected with a second sealing sleeve 403, the opening diameter of the second sealing sleeve 403 is smaller than the opening diameter of the first sealing sleeve 401, the second sealing sleeve 403 is rotatably connected with a rotating disk 404 at one end away from the first sealing sleeve 401, and the inner wall of the rotating disk 404 on the side away from the second sealing sleeve 403 is evenly fixedly connected with a plurality of dustproof plates 405, and the plurality of dustproof plates 405 are clearance-matched with the transmission shaft 2, and a clamping rod 406 is also provided on the outer wall of the end of the rotating disk 404 and on one side of the dustproof plate 405; Among them, with the two clamping rods 406 symmetrically arranged in the upper and lower positions, the purpose of fixing the rotating disk 404 and the transmission shaft 2 can be achieved, and then when the transmission shaft 2 is rotating, it can rotate with the rotating disk 404, so that the rotating disk 404 rotates synchronously with the dustproof plate 405 and the scraper plate 601. The dustproof plate 405 rotates synchronously with the transmission shaft 2, which can act as a wind barrier during the rotation of the transmission shaft 2, so that the dust changes its direction of travel in front of the dustproof plate 405, thereby reducing the possibility of dust entering the first sealing sleeve 401 through the opening of the rotating disk 404. By setting the scraper plate 601, not only can the dust on the outer wall of the second sealing sleeve 403 be scraped off, but the wind force generated by the rotation of the scraper plate 601 can also blow away the dust, thereby achieving the purpose of keeping the dust away from the second sealing sleeve 403 and the outer wall of the first sealing sleeve 401; Preferably, a support plate 501 is symmetrically fixedly connected to the outer wall of the end of the rotating disk 404 and located on one side of the dustproof plate 405, and the clamping rod 406 is arranged to slide through the inner wall of the support plate 501, and a first support spring 502 is fixedly connected to the bottom of the support plate 501, and one end of the first support spring 502 away from the support plate 501 is fixedly connected to the bottom side wall of the clamping rod 406, and two clamping rods 406, support plates 501 and first support springs 502 are symmetrically arranged on the outer wall of the end of the rotating disk 404, and a plurality of scraping plates 601 are evenly fixedly connected to the outer wall of the rotating disk 404 on the side close to the second sealing sleeve 403, and the plurality of scraping plates 601 are all inclined at thirty degrees on the surface of the second sealing sleeve 403; Preferably, a dust cover 701 is fixedly connected to the inner wall of the opening on one side of the first sealing sleeve 401 close to the second sealing sleeve 403. The outline shape of the dust cover 701 is a truncated cone. A ring 702 is rotatably connected to the inner wall of the opening on one end of the dust cover 701 close to the positioning rod 402. The ring 702 is plugged into the transmission shaft 2. A plurality of cleaning strips 703 are evenly fixedly connected to the inner wall of the ring 702 close to the dust plate 405. A rubber sleeve 801 is fixedly connected to the inner wall of the opening on the side of the first sealing sleeve 401 close to the fixed clamp ring 3. An L-shaped bracket 802 is also fixedly connected to the inner wall of the opening, and a pressure plate 803 is slidably connected inside the L-shaped bracket 802. The end of the pressure plate 803 away from the L-shaped bracket 802 is in contact with the inner wall of the fixed clamp ring 3. The bottom of the end of the pressure plate 803 away from the fixed clamp ring 3 is fixedly connected to a second support spring 804. The bottom of the second support spring 804 is fixedly connected to the inner wall of the top of the L-shaped bracket 802. Multiple L-shaped brackets 802, pressure plates 803 and second support springs 804 are evenly arranged on the inner wall of the first sealing sleeve 401. The rubber sleeve 801 is also plugged into the fixed clamp ring 3. The rubber sleeve 801 can play a sealing role at the joint between the fixed snap ring 3 and the first sealing sleeve 401, thereby preventing dust from entering through the gap between the first sealing sleeve 401 and the fixed snap ring 3, thereby improving the protection effect on the transmission shaft 2. When the pressure plate 803 indirectly contacts the inner wall of the fixed snap ring 3 through the rubber sleeve 801, the pressure plate 803 slides in the L-shaped bracket 802 toward the side close to the center of the first sealing sleeve 401, and presses the second support spring 804 at the same time. After the first sealing sleeve 401 and the fixed snap ring 3 are combined in place, the rebound characteristics of the second support spring 804 are used to reset the pressure plate 803, and at the same time, the rubber sleeve 801 is supported, so that the rubber sleeve 801 is closely fitted with the first sealing sleeve 401 and the inner wall of the fixed snap ring 3 away from the pressure plate 803, thereby avoiding the problem of poor sealing. Preferably, a lower ash box 901 is fixedly connected to the bottom of the second sealing sleeve 403 near the first sealing sleeve 401, the lower ash box 901 is communicated with the interior of the second sealing sleeve 403, a collecting tube 902 is threadedly connected to the bottom of the lower ash box 901, and the collecting tube 902 is communicated with the interior of the lower ash box 901, and a fastener 1001 is threadedly connected to the connection between the fixed clamp ring 3 and the positioning rod 402, and the bottom of the fastener 1001 is in contact with the outer wall of the output end of the explosion-proof motor body 1; Among them, by sweeping away the dust inside the dust cover 701, the dust can slide into the collection tube 902 through the lower ash box 901, so as to achieve the purpose of clearing and collecting dust simultaneously, and regularly removing the collection tube 902 from the bottom of the lower ash box 901, the dust can be uniformly processed, making dust collection more convenient and efficient.

[0017] The following are the complete usage steps and working principles of the above embodiment: When the device is used, in order to reduce the risk of dust entering the explosion-proof motor body 1 and causing safety accidents such as fire, the fixing clamp ring 3 is first sleeved on the outer wall of the output end of the explosion-proof motor body 1, and then the positioning rod 402 is aligned with the positioning groove 301, and the first sealing sleeve 401 is pushed toward one side of the explosion-proof motor body 1 with force, so that the end of the positioning rod 402 can completely enter the interior of the positioning groove 301. At this time, the end of the first sealing sleeve 401 is tightly fitted with the end of the fixing clamp ring 3, and then the fastener 1001 is screwed into the connection between the fixing clamp ring 3 and the positioning rod 402 by using a tool, so that the positioning rod 402 is firmly in contact with the fixing clamp ring 3. At the same time, when the fastener 1001 is tightened, the fixing clamp ring 3 is tightened to prevent the fixing clamp ring 3 from being damaged. When the bottom of the fastener 1001 contacts the outer wall of the output end of the explosion-proof motor body 1, stop twisting the fastener 1001, and use the top and bottom fasteners 1001 to contact the outer wall of the output end of the explosion-proof motor body 1 at the same time, so that the fixing clamp ring 3 can be firmly fixed to the outer wall of the output end of the explosion-proof motor body 1, and the first sealing sleeve 401 can be connected to the fixing clamp ring 3 through the positioning rod 402, so as to achieve the purpose of preliminary dust prevention at the connection between the explosion-proof motor body 1 and the transmission shaft 2. In addition, the relatively simple installation method improves the convenience of operation, shortens the time consumed by installation, and avoids the cumbersome installation steps that lead to increased consumables costs; When the first sealing sleeve 401 is pushed toward one side of the fixed snap ring 3, since the outer diameter of the rubber sleeve 801 is smaller than the opening inner diameter of the fixed snap ring 3, the rubber sleeve 801 can directly enter the interior of the fixed snap ring 3, and the rubber sleeve 801 can play a sealing role at the joint between the fixed snap ring 3 and the first sealing sleeve 401, thereby preventing dust from entering from the gap between the first sealing sleeve 401 and the fixed snap ring 3, thereby improving the protection effect on the transmission shaft 2, and when the pressure plate 803 indirectly contacts the inner wall of the fixed snap ring 3 through the rubber sleeve 801, the pressure plate 803 will slide inside the L-shaped bracket 802 toward the side close to the center of the first sealing sleeve 401, and at the same time press the second support spring Spring 804, after the first sealing sleeve 401 and the fixed snap ring 3 are combined in place, the rebound characteristics of the second support spring 804 are matched to reset the pressure plate 803, and at the same time, the rubber sleeve 801 is supported, so that the side of the rubber sleeve 801 away from the pressure plate 803 is closely fitted with the first sealing sleeve 401 and the inner wall of the fixed snap ring 3, thereby avoiding the problem of poor sealing. At the same time, multiple pressure plates 803 and the same number of second support springs 804 are set, and the pressure plate 803 can be lifted, and the rubber sleeve 801 can be fitted with the inner wall of the fixed snap ring 3 in all directions, thereby improving the sealing effect of the joint between the first sealing sleeve 401 and the fixed snap ring 3 and reducing the probability of dust entering; When the first sealing sleeve 401 is sleeved on the outer wall of the transmission shaft 2, the clamping rod 406 is resisted by the outer wall of the transmission shaft 2, thereby sliding inside the support plate 501 and squeezing the first support spring 502 at the same time. After the first sealing sleeve 401 is combined with the fixing clamp ring 3, the clamping rod 406 is reset due to the rebound characteristics of the first support spring 502, and cooperates with the two clamping rods 406 symmetrically arranged in the upper and lower positions to achieve the purpose of fixing the rotating disk 404 and the transmission shaft 2. Then, when the transmission shaft 2 is rotating, it can rotate with the rotating disk 404, so that the rotating disk 404 rotates synchronously with the dustproof plate 405 and the scraper plate 601. The dustproof plate 405 rotates synchronously with the transmission shaft 2, and the rotation of the dustproof plate 405 will disturb the surrounding airflow. Since the dustproof plate 405 has a certain area and shape, it will push the air around it to form a local airflow field during the rotation process. This airflow field interacts with the airflow originally carrying dust , so that the direction of the airflow originally toward the opening of the rotating disk 404 is changed. Even if the airflow direction is not completely changed, the dust will hit the dust plate 405 when it continues to move forward under the action of inertia. Since the dust plate 405 is rotating, the dust will be bounced off after hitting the dust plate 405 and cannot continue to enter the first sealing sleeve 401 through the opening of the rotating disk 404 along the original path, thereby acting as a wind barrier during the rotation of the transmission shaft 2. By setting the scraper plate 601, not only can the dust on the outer wall of the second sealing sleeve 403 be scraped off, but the wind force generated by the rotation of the scraper plate 601 can also blow the dust away, so as to achieve the purpose of keeping the dust away from the second sealing sleeve 403 and the outer wall of the first sealing sleeve 401, thereby reducing the accumulation of dust on the surface of the second sealing sleeve 403, avoiding dust from entering the interior of the explosion-proof motor body 1 and causing a fire safety accident, and effectively protecting the equipment at the use site and the life safety of the operators; In addition, when a small amount of dust enters the first sealing sleeve 401, it will exist in the dust cover 701. Since the first sealing sleeve 401 is sleeved on the outer wall of the transmission shaft 2, the ring 702 is fixed to the outer wall of the transmission shaft 2 by plugging. After the ring 702 and the transmission shaft 2 are firmly fixed, the ring 702 will rotate synchronously with the rotation of the transmission shaft 2 under the action of friction. During this period, the ring 702 is used to rotate with the cleaning strip 703, which can realize the removal of a small amount of dust inside the dust cover 701. By circulating and cleaning, the adhesion of dust is reduced, so that it can slide down quickly, ensuring the cleanliness of the inside of the dust cover 701, and preventing dust from entering the inside of the explosion-proof motor body 1. By sweeping off the dust inside the dust cover 701, the dust can slide into the collecting tube 902 through the lower ash box 901, thereby achieving the purpose of collecting dust simultaneously while cleaning, and regularly removing the collecting tube 902 from the bottom of the lower ash box 901, the dust can be uniformly processed, making dust collection more convenient and efficient.

[0018] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealing device for a dust explosion-proof motor, comprising an explosion-proof motor body (1), wherein an output end of the explosion-proof motor body (1) is fixedly connected to a transmission shaft (2), characterized in that: The outer wall of the output end of the explosion-proof motor body (1) is sleeved with a fixing clamp (3), the inner walls of the top and bottom ends of the fixing clamp (3) are both provided with positioning grooves (301), and the outer wall of the transmission shaft (2) is provided with an auxiliary sealing mechanism.

2. The sealing device for a dust explosion-proof motor according to claim 1, characterized in that: The auxiliary sealing mechanism comprises a first sealing sleeve (401) sleeved on the outer wall of the transmission shaft (2), the first sealing sleeve (401) and the transmission shaft (2) being loosely matched, the top and bottom of the first sealing sleeve (401) being fixedly connected to positioning rods (402), one end of the two positioning rods (402) close to the fixed clamping ring (3) being plugged into the positioning groove (301), the end of the first sealing sleeve (401) away from the fixed clamping ring (3) being fixedly connected to the second sealing sleeve (403), the second sealing sleeve The opening diameter of the cylinder (403) is smaller than the opening diameter of the first sealing sleeve (401); the second sealing sleeve (403) is rotatably connected to a rotating disk (404) at one end away from the first sealing sleeve (401); a plurality of dustproof plates (405) are evenly and fixedly connected to the inner wall of the rotating disk (404) at one side away from the second sealing sleeve (403); the plurality of dustproof plates (405) are all clearance-matched with the transmission shaft (2); and a clamping rod (406) is further provided on the outer wall of the end of the rotating disk (404) and located on one side of the dustproof plate (405).

3. The sealing device for a dust explosion-proof motor according to claim 2, characterized in that: A support plate (501) is symmetrically fixedly connected to the outer wall of the end of the rotating disk (404) and located on one side of the dustproof plate (405); the clamping rod (406) is slidably arranged to penetrate the inner wall of the support plate (501); a first support spring (502) is fixedly connected to the bottom of the support plate (501); one end of the first support spring (502) away from the support plate (501) is fixedly connected to the bottom side wall of the clamping rod (406); and two of the clamping rod (406), the support plate (501) and the first support spring (502) are symmetrically arranged on the outer wall of the end of the rotating disk (404).

4. The sealing device for a dust explosion-proof motor according to claim 2, characterized in that: A plurality of scraping plates (601) are evenly and fixedly connected to the outer wall of the rotating disk (404) on one side close to the second sealing sleeve (403), and the plurality of scraping plates (601) are all inclined at thirty degrees on the surface of the second sealing sleeve (403).

5. The sealing device for a dust explosion-proof motor according to claim 2, characterized in that: A dust cover (701) is fixedly connected to the inner wall of the opening on one side of the first sealing sleeve (401) close to the second sealing sleeve (403); the dust cover (701) has a truncated cone-shaped outline; a circular ring (702) is rotatably connected to the inner wall of the opening on one end of the dust cover (701) close to the positioning rod (402); the circular ring (702) is plug-fitted with the transmission shaft (2); and a plurality of cleaning strips (703) are evenly fixedly connected to the inner wall of the circular ring (702) on one side close to the dustproof plate (405).

6. The sealing device for a dust explosion-proof motor according to claim 2, characterized in that: A rubber sleeve (801) is fixedly connected to the inner wall of the opening on one side of the first sealing sleeve (401) close to the fixed clamp ring (3); an L-shaped bracket (802) is also fixedly connected to the inner wall of the opening on one side of the first sealing sleeve (401) close to the fixed clamp ring (3); a pressure plate (803) is slidably connected inside the L-shaped bracket (802); an end of the pressure plate (803) away from the L-shaped bracket (802) is in contact with the inner wall of the fixed clamp ring (3); a second support spring (804) is fixedly connected to the bottom of the end of the pressure plate (803) away from the fixed clamp ring (3); and the bottom of the second support spring (804) is fixedly connected to the inner wall of the top of the L-shaped bracket (802).

7. The sealing device for a dust explosion-proof motor according to claim 6, characterized in that: The L-shaped bracket (802), the pressure plate (803) and the second support spring (804) are uniformly arranged in plurality on the inner wall of the first sealing sleeve (401), and the rubber sleeve (801) is also plug-fitted with the fixing clamp ring (3).

8. The sealing device for a dust explosion-proof motor according to claim 2, characterized in that: A lower ash box (901) is fixedly connected to the bottom of the second sealing sleeve (403) on the side close to the first sealing sleeve (401); the lower ash box (901) is communicated with the interior of the second sealing sleeve (403); a collecting tube (902) is threadedly connected to the bottom of the lower ash box (901); and the collecting tube (902) is communicated with the interior of the lower ash box (901).

9. The sealing device for a dust explosion-proof motor according to claim 2, characterized in that: A fastener (1001) is threadedly connected to the connection between the fixing clamp ring (3) and the positioning rod (402), and the bottom of the fastener (1001) is in contact with the outer wall of the output end of the explosion-proof motor body (1).

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