Rear end cover dust removal device for explosion-proof motor

Abstract

The utility model relates to the technical field of dust removal devices, and discloses a rear end cover dust removal device for an explosion-proof motor, which comprises a mounting seat, the mounting seat comprises a fixed part arranged on a rear end cover and a guide part arranged on the fixed part, and the guide part is located in the rear end cover. The fixing part comprises a first clamping piece and a second clamping piece which are arranged on the two sides of the rear end cover respectively, the second clamping piece is located in the rear end cover, and the first clamping piece and the second clamping piece are connected through a clamping connecting piece. The guide part comprises a first guide piece arranged on the second clamping piece and a second guide piece arranged on the first guide piece; and the rotary cleaning assembly comprises a rotating part rotationally arranged on the first guide piece, a pushing part arranged at the position, close to the cooling fan, of the rotating part, and a dust removal part arranged at the position, close to the filter screen, of the rotating part. The dust removal device has the effect that dust attached to the filter screen can be conveniently removed.

Description

Technical Field

[0001] The present application relates to the technical field of dust removal devices, and in particular to a dust removal device for a rear end cover of an explosion-proof motor. Background Art

[0002] Explosion-proof motors are motors that can be used in flammable and explosive places and do not generate sparks during operation. Explosion-proof motors are mainly used in coal mines, oil and gas, petrochemical and chemical industries. In addition, they are widely used in textiles, metallurgy, city gas, transportation, coarse grain processing, papermaking, medicine and other sectors. Explosion-proof motors are the main power equipment and are usually used to drive pumps, fans, compressors and other transmission machinery.

[0003] Explosion-proof motors will emit a lot of heat during long-term operation. In order to facilitate the heat dissipation of the motor, a number of heat dissipation holes are opened at the rear end cover of the motor casing, and a cooling fan is installed inside the motor casing near the rear end cover. The heat of the motor is discharged from the motor through the heat dissipation holes through the cooling fan.

[0004] In order to reduce the amount of dust entering the motor casing from the rear end cover of the motor, a filter is generally installed at the rear end cover of the motor casing. However, when the filter is used in a dusty environment for a long time, dust is easily attached to the filter. The gaps on the filter are generally small, and dust attached to the filter is easy to clog the filter, thereby causing a heat dissipation defect that affects the motor. Utility Model Content

[0005] In order to facilitate the cleaning of dust attached to the filter net, the present application provides a rear end cover dust removal device for an explosion-proof motor.

[0006] The dust removal device for the rear end cover of an explosion-proof motor provided in the present application adopts the following technical solution:

[0007] A rear end cover dust removal device for an explosion-proof motor, the rear end cover dust removal device is used to remove dust from a filter screen when a cooling fan is working, comprising:

[0008] A mounting seat, the mounting seat comprising a fixing portion mounted on the rear end cover and a guide portion mounted on the fixing portion, wherein the guide portion is located inside the rear end cover, the fixing portion comprises a first clamping member and a second clamping member respectively mounted on both sides of the rear end cover, the second clamping member is located inside the rear end cover, the first clamping member and the second clamping member are connected via a clamping connector, and the guide portion comprises a first guide member mounted on the second clamping member and a second guide member mounted on the first guide member;

[0009] A rotary cleaning assembly, the rotary cleaning assembly comprising a rotating part rotatably mounted on the first guide member, a pushing part mounted on the rotating part near a cooling fan, and a dust removal part mounted on the rotating part near a filter screen;

[0010] When the cooling fan is working, the airflow driven by the cooling fan drives the rotating part to rotate on the first guide member through the pushing part. When the rotating part rotates, the dust removing part cleans the dust attached to the filter net.

[0011] Optionally, the first guide member is a guide rod, the length direction of which is perpendicular to the filter screen, the second guide member is a guide plate, the guide plate is located at one end of the guide rod close to the cooling fan, and the second clamping member and the guide plate clamp the rotating part.

[0012] Optionally, the guide portion further comprises a spring sleeved on the guide rod, one end of the spring abuts against the second clamping member, and the other end of the spring abuts against the rotating portion.

[0013] Optionally, the rotating part includes a rotating guide member and a plurality of telescopic members mounted on the rotating guide member, the rotating guide member includes a first rotating guide ring rotatably mounted on the first guide member and a second rotating guide ring mounted on the rear end cover, one end of each telescopic member is mounted on the first rotating guide ring, the other end of the telescopic member is in contact with the inner wall of the second rotating guide ring, and the pushing part is mounted on the telescopic member.

[0014] Optionally, each of the telescopic members includes a positioning rod with one end mounted on the first rotating guide ring and a sliding cylinder slidably sleeved on the positioning rod, and the pushing part is mounted on the sliding cylinder.

[0015] Optionally, the rotating part further comprises a resistance member rotatably mounted on one end of the telescopic member close to the inner wall of the second rotating guide ring, and the resistance member and the inner wall of the second rotating guide ring are in rolling engagement.

[0016] Optionally, the diameter of the inner wall of the second rotating guide ring gradually increases in a direction away from the cooling fan to close to the cooling fan.

[0017] Optionally, the dust removal part includes an adjusting member detachably mounted on the rotating part and a cleaning member mounted on the adjusting member.

[0018] In summary, the present application includes at least one of the following beneficial technical effects:

[0019] 1. When the cooling fan is working, the airflow driven by the cooling fan causes the pushing part to drive the rotating part to rotate. During the rotation of the rotating part, the rotating part drives the dust removal part to move on the filter net, so as to clean the dust attached to the filter net and reduce the possibility of the dust on the filter net blocking the aperture of the filter net;

[0020] 2. During the rotation of the rotating part, the rotating part moves toward the filter under the thrust of the pushing part, so that the dust removal part is pressed against the filter, thereby improving the cleaning effect of the filter and at the same time, improving the service life of the dust removal part. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram showing the relative positions of the mounting base and the rear end cover in the embodiment of the present application.

[0022] Figure 2 It is a schematic diagram showing the relative positions of the rotary cleaning assembly and the rear end cover in the embodiment of the present application.

[0023] Figure 3 It is a schematic diagram of the overall structure in the embodiment of the present application.

[0024] Figure 4 It is a schematic diagram of the mounting seat structure in the embodiment of the present application.

[0025] Figure 5 It is a schematic diagram of a rotary cleaning component in an embodiment of the present application.

[0026] Description of reference numerals:

[0027] 1. Mounting seat; 11. Fixing part; 111. First clamping member; 112. Second clamping member; 113. Clamping connector; 12. Guide part; 121. First guide member; 122. Second guide member; 123. Spring; 2. Rotating cleaning assembly; 21. Rotating part; 211. Rotating guide member; 2111. First rotating guide ring; 2112. Second rotating guide ring; 212. Telescopic member; 2121. Positioning rod; 2122. Sliding cylinder; 213. Resistance member; 2131. Rotating roller; 2132. Resistance plate; 22. Pushing part; 221. Pushing strip; 222. Pushing sheet; 23. Dust removal part; 231. Adjusting member; 232. Cleaning member; 3. Rear end cover. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-Figure 5 This application is described in further detail.

[0029] The embodiment of the present application discloses a dust removal device for a rear end cover of an explosion-proof motor.

[0030] A rear end cover dust removal device for explosion-proof motors includes a mounting seat 1 and a rotary cleaning assembly 2. The mounting seat 1 includes a fixing portion 11 and a guide portion 12. The fixing portion 11 is mounted on the rear end cover 3, and the guide portion 12 is mounted on the fixing portion 11. The rotary cleaning assembly 2 includes a rotating portion 21, a pushing portion 22 and a dust removal portion 23. The rotating portion 21 is mounted on the guide portion 12, the pushing portion 22 is mounted at a position of the rotating portion 21 close to a cooling fan, and the dust removal portion 23 is mounted at a position of the rotating portion 21 close to a filter screen.

[0031] When the cooling fan is working, the airflow driven by the cooling fan drives the rotating part 21 to rotate on the guide part 12 through the pushing part 22. During the rotation of the rotating part 21, the rotating part 21 drives the dust removal part 23 to clean the dust on the filter net, thereby reducing the possibility that the dust on the filter net will block the aperture of the filter net and affect the heat dissipation effect of the motor.

[0032] The fixing portion 11 includes a first clamping member 111 and a second clamping member 112. The first clamping member 111 is a first clamping plate, and the second clamping member 112 is a second clamping plate. The first clamping plate and the second clamping plate are respectively located on both sides of the rear end cover 3. The first clamping plate and the second clamping plate clamp the rear end cover 3 and the filter screen, and the second clamping plate is located near the cooling fan.

[0033] The first clamping plate and the second clamping plate are both provided with a plurality of connection holes, each of which is a through hole. The first clamping plate and the second clamping plate are connected via a clamping connector 113. In the embodiment of the present application, the clamping connector 113 includes a connection bolt and a connection nut threadedly connected to the connection bolt. The connection bolt and the connection nut connect the first clamping plate and the second clamping plate through the connection holes on the first clamping plate and the second clamping plate, and enable the first clamping plate and the second clamping plate to clamp the rear end cover 3 and the filter screen.

[0034] The guide part 12 includes a first guide member 121, a second guide member 122 and a spring 123. The first guide member 121 is a guide rod, and the second guide member 122 is a guide disk. The guide rod and the second clamping disk are coaxially arranged, and the guide rod is fixedly mounted on the side of the second clamping disk away from the first clamping disk. The guide disk is fixedly mounted on the side of the guide rod away from the second clamping disk by screws, the guide disk and the guide rod are coaxial, and the diameter of the guide disk is larger than the diameter of the guide rod. The spring 123 is sleeved on the guide rod.

[0035] The rotary cleaning assembly 2 includes a rotating portion 21 , a pushing portion 22 and a dust removing portion 23 .

[0036] The rotating part 21 includes a rotating guide member 211, a telescopic member 212 and a resisting member 213. The rotating guide member 211 includes a first rotating guide ring 2111 and a second rotating guide ring 2112. The first rotating guide ring 2111 is rotatably sleeved on the guide rod, and the first rotating guide ring 2111 can move along the axis direction of the guide rod, and the first rotating guide ring 2111 is coaxial with the guide rod. The outer ring wall of the second rotating guide ring 2112 is fixedly connected to the rear end cover 3.

[0037] One end of the spring 123 abuts against the second clamping plate, and the other end of the spring 123 abuts against the first rotating guide ring 2111 .

[0038] A plurality of telescopic members 212 are provided, and the plurality of telescopic members 212 are all installed on the outer wall of the first rotating guide ring 2111 , and the plurality of telescopic members 212 are evenly distributed circumferentially along the axis direction of the first rotating guide ring 2111 . In the embodiment of the present application, three telescopic members 212 are provided.

[0039] In order to facilitate the installation of the telescopic member 212 on the first rotating guide ring 2111, a plurality of mounting holes are opened on the outer ring wall of the first rotating guide ring 2111, and the plurality of mounting holes are evenly distributed along the axial direction of the first rotating guide ring 2111. In the embodiment of the present application, three mounting holes are provided, and the three mounting holes correspond one to one to the three telescopic members 212.

[0040] The telescopic member 212 includes a positioning rod 2121 and a sliding cylinder 2122. The positioning rod 2121 is a long strip rod, and one end of the positioning rod 2121 close to the first rotating guide ring 2111 is plugged into the corresponding mounting hole, and the positioning rod 2121 is limited by the mounting hole, and then the positioning rod 2121 and the first rotating guide ring 2111 are fixedly connected by a bolt and nut assembly.

[0041] One end of the sliding cylinder 2122 is closed, and the other end is provided with an opening. The sliding cylinder 2122 is slidably sleeved on the positioning rod 2121 .

[0042] The resisting member 213 includes a resisting plate 2132 and a rotating roller 2131. Two resisting plates 2132 are provided, the two resisting plates 2132 are parallel to each other, and each resisting plate 2132 is fixedly connected to the sliding cylinder 2122. The rotating roller 2131 is located between the two resisting plates 2132, and the rotating roller 2131 and the two resisting plates 2132 are rotatably connected.

[0043] When the first rotating guide ring 2111 rotates around the guide rod, the sliding cylinder 2122 moves in a direction away from the first rotating guide ring 2111 under the action of centrifugal force, and makes the rotating roller 2131 roll and fit with the inner wall of the second rotating guide ring 2112 .

[0044] In order to facilitate the dust inside the rear end cover 3 to be blown out, the inner diameter of the second rotating guide ring 2112 gradually increases from the direction close to the cooling fan to the direction away from the cooling fan. When the cooling fan is working, the inner wall of the second rotating guide ring 2112 guides the airflow. At the same time, in order to facilitate the movement of the rotating roller 2131 along the axis direction of the second rotating guide ring 2112, the end of the rotating roller 2131 is provided with an arc surface.

[0045] The push part 22 includes a push bar 221 and a push sheet 222. The push bar 221 is fixedly mounted on the side of the sliding cylinder 2122 close to the cooling fan by screws, and the length direction of the push bar 221 is consistent with the length direction of the sliding cylinder 2122. The push sheet 222 is bonded to the side of the push bar 221 close to the cooling fan, and the side of the push bar 221 close to the cooling fan is tilted, so that the push sheet 222 is tilted, so that when the cooling fan is working, the airflow driven by the cooling fan drives the first rotating guide ring 2111 to rotate through the push sheet 222.

[0046] The dust removal part 23 includes an adjustment member 231 and a cleaning member 232. The adjustment member 231 is an adjustment plate, which is located on the side of the sliding cylinder 2122 close to the rear end cover 3. The length direction of the adjustment plate is consistent with the length direction of the sliding cylinder 2122. The adjustment plate is fixedly connected to the sliding cylinder 2122 by screws. The cleaning member 232 is a plurality of bristles, which are all bonded to the side of the adjustment plate close to the rear end cover 3. By changing the relative position of the adjustment plate and the sliding cylinder 2122, the cleaning range of the bristles can be adjusted.

[0047] The implementation principle of the dust removal device for the rear end cover of an explosion-proof motor in the embodiment of the present application is as follows: when the cooling fan is working, the airflow blown by the cooling fan acts on the push piece 222, and drives the rotating part 21 to rotate through the push piece 222. During the rotation of the rotating part 21, the sliding cylinder 2122 moves in a direction away from the first rotating guide ring 2111 under the action of centrifugal force, so as to facilitate the adaptation to different rear end cover sizes, and make the rotating roller 2131 roll on the inner ring wall of the second rotating guide ring 2112, so as to reduce the resistance of the telescopic member 212 to rotate. During the operation of the pushing piece 222, the first rotating guide ring 2111 moves in a direction close to the spring 123 under the action of the airflow, and compresses the spring 123. At this time, the spring 123 buffers the first rotating guide ring 2111, reducing the possibility of the first rotating guide ring 2111 hitting the second clamping disk. At the same time, the spring 123 reduces the possibility of the first rotating guide ring 2111 colliding with the clamping connector 113 on the second clamping disk during the operation. When the first rotating guide ring 2111 moves toward the second clamping disk, the first rotating guide ring 2111 drives the bristles to move toward the filter screen through the telescopic member 212, thereby facilitating the cleaning of dust attached to the filter screen and reducing the possibility of impurities clogging the aperture of the filter screen.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A rear end cover dust removal device for an explosion-proof motor, the rear end cover dust removal device is used to remove dust from a filter screen when a cooling fan is working, and is characterized in that: include; A mounting seat (1), the mounting seat (1) comprising a fixing portion (11) mounted on a rear end cover (3) and a guiding portion (12) mounted on the fixing portion (11), wherein the guiding portion (12) is located inside the rear end cover (3), the fixing portion (11) comprising a first clamping member (111) and a second clamping member (112) respectively mounted on two sides of the rear end cover (3), the second clamping member (112) being located inside the rear end cover (3), the first clamping member (111) and the second clamping member (112) being connected via a clamping connection member (113), and the guiding portion (12) comprising a first guiding member (121) mounted on the second clamping member (112) and a second guiding member (122) mounted on the first guiding member (121); A rotary cleaning assembly (2), the rotary cleaning assembly (2) comprising a rotating portion (21) rotatably mounted on the first guide member (121), a pushing portion (22) mounted on the rotating portion (21) near a cooling fan, and a dust removal portion (23) mounted on the rotating portion (21) near a filter screen; When the cooling fan is working, the airflow driven by the cooling fan drives the rotating part (21) to rotate on the first guide member (121) through the pushing part (22); when the rotating part (21) rotates, the dust removal part (23) cleans the dust attached to the filter screen.

2. The dust removal device for the rear end cover of an explosion-proof motor according to claim 1, characterized in that: The first guide member (121) is a guide rod, the length direction of which is perpendicular to the filter screen, the second guide member (122) is a guide plate, the guide plate is located at one end of the guide rod close to the cooling fan, and the second clamping member (112) and the guide plate clamp the rotating part (21).

3. The dust removal device for the rear end cover of an explosion-proof motor according to claim 2, characterized in that: The guide portion (12) further comprises a spring (123) sleeved on the guide rod, one end of the spring (123) abuts against the second clamping member (112), and the other end of the spring (123) abuts against the rotating portion (21).

4. The dust removal device for the rear end cover of an explosion-proof motor according to claim 1, characterized in that: The rotating part (21) comprises a rotating guide member (211) and a plurality of telescopic members (212) mounted on the rotating guide member (211); the rotating guide member (211) comprises a first rotating guide ring (2111) rotatably mounted on the first guide member (121) and a second rotating guide ring (2112) mounted on the rear end cover (3); one end of each telescopic member (212) is mounted on the first rotating guide ring (2111), and the other end of the telescopic member (212) is in contact with the inner wall of the second rotating guide ring (2112); and the pushing part (22) is mounted on the telescopic member (212).

5. The dust removal device for the rear end cover of an explosion-proof motor according to claim 4, characterized in that: Each of the telescopic members (212) comprises a positioning rod (2121) with one end mounted on the first rotating guide ring (2111) and a sliding cylinder (2122) slidably sleeved on the positioning rod (2121), and the pushing portion (22) is mounted on the sliding cylinder (2122).

6. The dust removal device for the rear end cover of an explosion-proof motor according to claim 4, characterized in that: The rotating part (21) further comprises a resistance member (213) rotatably mounted on one end of the telescopic member (212) close to the inner wall of the second rotating guide ring (2112), and the resistance member (213) and the inner wall of the second rotating guide ring (2112) are in rolling engagement.

7. The dust removal device for the rear end cover of an explosion-proof motor according to claim 4, characterized in that: The diameter of the inner wall of the second rotating guide ring (2112) gradually increases in the direction from away from the cooling fan to closer to the cooling fan.

8. The dust removal device for the rear end cover of an explosion-proof motor according to claim 1, characterized in that: The dust removal part (23) comprises an adjusting member (231) detachably mounted on the rotating part (21) and a cleaning member (232) mounted on the adjusting member (231).

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