A device for automatically removing dust from an explosion-proof motor

Abstract

The present application belongs to the technical field of dust removal of explosion-proof motor, and discloses a device for automatic dust removal of explosion-proof motor, comprising: a connecting shaft fixedly connected with a non-driving end of the explosion-proof motor and extending outward through a dust cover of the explosion-proof motor; a fan blade assembled on the connecting shaft, placed inside the dust cover and arranged towards a heat dissipation hole; and a dust removal brush assembled on a free end of the connecting shaft, placed outside the dust cover and corresponding to the heat dissipation hole, used for cleaning foreign matters on the heat dissipation hole. The present application is convenient for cleaning dust at the heat dissipation hole on the outer surface of the explosion-proof motor and improving the heat dissipation efficiency of the explosion-proof motor. The present application is applicable to the fields of textile, metallurgy, city gas, transportation, grain and oil processing, papermaking, medicine and the like.

Description

Technical Field

[0001] This invention belongs to the field of dust removal technology for explosion-proof motors, specifically an automatic dust removal device for explosion-proof motors. Background Technology

[0002] Currently, explosion-proof motors are widely used in textiles, metallurgy, urban gas, transportation, grain and oil processing, papermaking, and pharmaceuticals. Explosion-proof motors are special motors used in flammable and explosive environments, possessing high protection levels and strict requirements for temperature rise. Under normal heat dissipation conditions, the surface temperature of an explosion-proof motor is far below the ignition temperature of the surrounding explosive gas environment. However, due to the environment in which explosion-proof motors operate, foreign matter such as dust, insects, and lint can easily accumulate. These foreign matter can build up on the motor's heat dissipation vents and dust cover, affecting heat dissipation efficiency and leading to increased temperature rise. Over time, the accumulated heat will further damage the motor's insulation when it reaches a critical temperature. Continued accumulation may even ignite explosive gases with low ignition temperatures. GB 18613-2021, "Energy Efficiency Limits and Energy Saving Evaluation Values ​​for Small and Medium-Sized Three-Phase Asynchronous Motors," states that exceeding the allowable operating temperature of the equipment will cause damage to the insulation, leakage, and reduced motor life.

[0003] Existing technologies include devices for removing dust from motors. While these devices can remove foreign objects from the motor to some extent, they are not suitable for use with explosion-proof motors. This is because explosion-proof motors operate in high-temperature and dusty environments. Due to the accumulation of dust and other foreign objects, existing dust removal equipment, when cleaning the outer surface of the dust cover, easily clogs the heat dissipation holes. This results in poor cleaning of dust and foreign objects at the heat dissipation holes, affecting the motor's heat dissipation efficiency and shortening the equipment's lifespan. Summary of the Invention

[0004] To address the aforementioned shortcomings in the existing technology, this invention aims to provide an automatic dust removal device for explosion-proof motors, thereby cleaning dust from the heat dissipation holes on the outer surface of the explosion-proof motor and improving its heat dissipation efficiency.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A device for automatic dust removal of explosion-proof motors, comprising: The connecting shaft is fixedly connected to the non-drive end of the explosion-proof motor and extends outward through the dust cover of the explosion-proof motor; The fan blades are mounted on the connecting shaft, placed inside the dust cover, and oriented towards the heat dissipation holes; The dust removal brush is mounted on the free end of the connecting shaft and is located outside the dust cover, corresponding to the heat dissipation holes. It is used to clean foreign objects from the heat dissipation holes.

[0006] As a limitation of the present invention, the free end of the connecting shaft is connected to the power input end of the planetary gear, and the power output end of the planetary gear is connected to the dust removal brush.

[0007] As a further limitation of the present invention, the dust removal brush is in the shape of a circular plate, and the circular plate is provided with multiple sets of bristles.

[0008] As a further limitation of the present invention, multiple sets of bristles are arranged at equal intervals along the radial direction on the circular plate.

[0009] As another limitation of the present invention, the dust removal brush is a plurality of rectangular plates, the ends of all the rectangular plates are connected and radially distributed, and each rectangular plate has a plurality of sets of bristles at equal intervals along the length direction.

[0010] As another limitation of the present invention, the connecting shaft is connected to the non-driving end of the explosion-proof motor via a coupling.

[0011] By adopting the above-described technical solution, the beneficial effects achieved by this invention compared to the prior art are as follows: (1) Improve heat dissipation efficiency. This invention can remove dust from the outer surface of the dust cover and the dust in the heat dissipation holes, reduce insulation damage caused by the accumulation of dust and foreign objects, ensure the heat dissipation efficiency of the motor, and avoid the problem of poor heat dissipation caused by the accumulation of dust and foreign objects.

[0012] (2) Extend service life. It reduces the risk of equipment insulation damage, extends the service life of the equipment, and reduces the frequency of equipment replacement and maintenance.

[0013] (3) High safety. This invention can ensure the stable operation of explosion-proof motors in harsh environments, improve the reliability of production equipment, enhance equipment safety, and reduce the occurrence of safety accidents.

[0014] (4) Reduced maintenance costs. This invention utilizes the rotation of a motor to drive a dust removal brush for automated dust removal, reducing the need for manual dust cleaning, as well as reducing maintenance costs and downtime, and improving equipment operating efficiency.

[0015] (5) Wide range of applications. This invention is applicable to various places that are prone to dust, insects, and lint, such as textiles, metallurgy, urban gas, transportation, grain and oil processing, papermaking, and medicine, and has wide applicability. Attached Figure Description

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the bristle distribution on the circular dust removal brush of Embodiment 2 of the present invention; Figure 3 This is a schematic diagram of the bristle distribution on the radial dust removal brush of Embodiment 2 of the present invention.

[0018] In the diagram: 1. Connecting shaft; 2. Fan blade; 3. Dust removal brush; 4. Dust cover; 5. Explosion-proof motor; 6. Drive end; 7. Planetary gear; 8. Brush bristles. Detailed Implementation

[0019] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustrative and understanding purposes only and are not intended to limit the scope of the invention.

[0020] Example 1: An automatic dust removal device for explosion-proof motors like Figure 1 As shown, this embodiment includes a connecting shaft 1, a fan blade 2, and a dust removal brush 3.

[0021] The drive end 6 of the explosion-proof motor 5 is located on the left side, and the non-drive end is located on the right side. The connecting shaft 1 is fixedly connected to the non-drive end of the explosion-proof motor 5, and the connecting shaft 1 extends outward through the dust cover 4 of the explosion-proof motor 5. Preferably, the connecting shaft 1 is connected to the explosion-proof motor 5 via a coupling, so that this embodiment can be removed and installed on different explosion-proof motors 5.

[0022] The fan blade 2 is fixedly mounted on the connecting shaft 1, placed inside the dust cover 4, and facing the heat dissipation hole, so as to dissipate the heat inside the explosion-proof motor 5 to the outside through the heat dissipation hole.

[0023] The dust removal brush 3 is mounted on the free end of the connecting shaft 1, located outside the dust cover 4, and is positioned corresponding to the heat dissipation holes. It is used to clean dust and other foreign objects from the heat dissipation holes. Preferably, the free end of the connecting shaft 1 is connected to the power input end of the planetary gear 7, and the power output end of the planetary gear 7 is connected to the dust removal brush 3, so that the dust removal brush 3 can be rotated after being reduced in speed by the planetary gear 7.

[0024] Specifically, the dust removal brush 3 is in the shape of a round plate, and multiple sets of bristles 8 are fixedly arranged on the side of the round plate corresponding to the heat dissipation holes.

[0025] In this embodiment, the rotational power of the explosion-proof motor 5 drives the connecting shaft 1, fan blades 2, and dust removal brush 3 to rotate. The fan blades 2 dissipate heat from inside the dust cover 4 through the heat dissipation holes. At the same time, the bristles 8 of the dust removal brush 3 come into contact with the outer surface of the dust cover 4 and the heat dissipation holes. The bristles 8 brush dust away from the heat dissipation holes and the outer surface of the dust cover 4. Under the action of the fan blades 2, dust and other foreign objects are blown away from the explosion-proof motor 5, thus achieving the purpose of dust removal.

[0026] Example 2: An automatic dust removal device for an explosion-proof motor 5 To ensure that the dust removal brush 3 cleans the dust from the heat dissipation holes without affecting the fan blades 2's ability to dissipate heat from inside the dust cover 4, in this embodiment, the dust removal brush 3 can be configured in any of the following ways: First, the dust removal brush 3 is in the shape of a circular plate. Multiple sets of bristles 8 are arranged on the circular plate, as shown in the reference. Figure 2 As shown, multiple sets of bristles 8 are arranged at equal intervals along the radial direction on the circular plate. The gaps between the multiple sets of bristles 8 allow the heat dissipation holes not covered by the bristles 8 to ventilate and dissipate heat outward.

[0027] Second, the dust removal brush consists of multiple rectangular plates. The ends of all the rectangular plates are connected and arranged radially, as shown in the reference. Figure 3 As shown, each rectangular plate has multiple sets of bristles 8 evenly spaced along its length. The gaps between adjacent rectangular plates allow the heat dissipation holes not covered by the bristles 8 to ventilate and dissipate heat outwards.

[0028] It should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for automatic dust removal of explosion-proof motors, characterized in that... include: The connecting shaft is fixedly connected to the non-drive end of the explosion-proof motor and extends outward through the dust cover of the explosion-proof motor; The fan blades are mounted on the connecting shaft, placed inside the dust cover, and oriented towards the heat dissipation holes; The dust removal brush is mounted on the free end of the connecting shaft and is located outside the dust cover, corresponding to the heat dissipation holes. It is used to clean foreign objects from the heat dissipation holes.

2. The device for automatic dust removal of explosion-proof motors according to claim 1, characterized in that: The free end of the connecting shaft is connected to the power input end of the planetary gear, and the power output end of the planetary gear is connected to the dust removal brush.

3. The automatic dust removal device for explosion-proof motors according to claim 1 or 2, characterized in that: The dust removal brush is round and has multiple sets of bristles.

4. The device for automatic dust removal of explosion-proof motors according to claim 3, characterized in that: Multiple sets of bristles are arranged at equal intervals along the radial direction of the circular plate.

5. The automatic dust removal device for explosion-proof motors according to claim 1 or 2, characterized in that: The dust removal brush consists of multiple rectangular plates, with the ends of all the rectangular plates connected and distributed radially. Each rectangular plate has multiple sets of bristles evenly spaced along its length.

6. The automatic dust removal device for explosion-proof motors according to any one of claims 1, 2, and 4, characterized in that: The connecting shaft is connected to the non-drive end of the explosion-proof motor via a coupling.

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