Explosion-proof motor protection shell

Abstract

The invention relates to the technical field of motors, and discloses an explosion-proof motor protection shell which comprises a protection shell body, an explosion-proof motor body is arranged in the protection shell body, an inner frame is fixedly installed in the protection shell body, an extrusion device is arranged in the inner frame, a shielding device is arranged on the outer wall of the inner frame, and a dust removal device is arranged in the inner frame. A fan is fixedly installed in the protective shell, a filter screen is arranged on the protective shell, the extrusion device moves under the action of outward wind power, the extrusion device pushes a shielding device on the outer wall of the inner frame when sliding, the shielding device rotates under the action of the extrusion device, and the shielding device is driven by the extrusion device to rotate. When the shielding device rotates, acting force is applied to the dust removal device, the dust removal device applies acting force to the filter screen after being subjected to external force action of the extrusion device, and the filter screen vibrates under the action of the external force to drive dust adhering to the filter screen to fall off.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to an explosion-proof motor protection shell. Background technique [0002] Explosion-proof motor is a kind of motor that can be used in flammable and explosive places. It is mainly used in coal mines, oil and gas, petrochemical and chemical industries. As the main power equipment, explosion-proof motors are usually used to drive pumps, fans, and compressors. And other transmission machinery, etc., when the explosion-proof motor is used, it is usually provided with a protective shell on the outside to protect it. At the same time, the explosion-proof motor generates more heat when it is used, so it is usually provided with cooling holes on the protective shell. And a fan is installed inside to ensure that the internal heat flows to the outside. [0003] When an explosion-proof motor is used in a dusty place, external dust will enter the protective shell through the heat dissipation ...

AI Technical Summary

Problems solved by technology

[0003] When an explosion-proof motor is used in a dusty place, external dust will enter the protective shell through the heat dissipation holes. Therefore, in order to reduce dust entry, a filter is usually installed inside the heat dissipation holes to filter the external dust. Finally, more and more dust will adhere to the filter, and the dust will block the mesh of the filter. At this time, it is difficult to dissipate the heat inside the protective shell, and the energy consumed by the fan will become higher and higher, resulting in a significant increase in heat dissipation efficiency. reduced, for which an explosion-proof motor protection enclosure is required

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