CN220475505U - Airtight fan motor structure and fan motor - Google Patents

Abstract

The utility model belongs to the technical field of fans, and particularly discloses a closed fan motor structure, wherein a driving motor body is arranged in a fan cover, impeller frames are sleeved on the outer side of the driving motor body, motor driving shafts are arranged at two ends of the driving motor body, two identical fixing frames are arranged at two ends of the motor driving shafts, the fixing frames are arranged on the outer side of an air inlet by adopting screws, and the driving motor body is arranged in the fan cover, so that corrosion of dust outside equipment to the driving motor body can be reduced; the motor is characterized in that two ends of the driving motor body are provided with two identical motor covers and sealing covers, the outer sides of the motor covers are provided with integrally fixed labyrinth grooves, the sealing covers are buckled on the outer sides of the labyrinth grooves to seal, and after the labyrinth grooves on the motor covers are matched with dustproof grooves on the sealing covers, sand dust, salt mist and acid-base liquid can be effectively prevented from splashing onto the fan and then permeate into the motor to cause damage to the fan, so that the service life of equipment is prolonged, and the maintenance cost is reduced.

Description

Airtight fan motor structure and fan motor

Technical Field

The utility model relates to the technical field of fans, in particular to a closed fan motor structure and a fan motor.

Background

Fans are widely used for ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and induced draft of boilers and industrial kilns; cooling and ventilation in air-conditioning devices and household appliances; drying and selecting grains; inflating and propelling the wind tunnel wind source and the air cushion ship; the working principle of the fan is basically the same as that of the turbine compressor, but the pressure change is not large due to the low flow rate of the gas, and the change of the specific volume of the gas is generally not needed to be considered, namely the gas is treated as incompressible fluid;

the fan on the market adopts external motor to realize the transmission mostly, and the product on the market adopts fixed motor, stretches out a axle on the motor, has the bearing on the axle owing to the bearing is external, receives external dust pollution bearing easily, leads to the bearing to damage, and motor support and bearing support motor, motor and axle rotate together, and this structure damages easily, and product life is not long.

Disclosure of Invention

The utility model aims to provide a closed fan motor structure and a fan motor, so as to solve the problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a closed fan motor structure, comprising;

the closed structure consists of a fan cover, a driving motor body and an impeller frame;

air inlets are formed in two ends of the fan cover, and an integrally formed air outlet is formed in the top of the fan cover;

the driving motor body is positioned in the fan cover, the impeller frame is sleeved on the outer side of the driving motor body, motor driving shafts are arranged at two ends of the driving motor body, two identical fixing frames are arranged at two ends of the motor driving shafts, and the fixing frames are arranged on the outer side of the air inlet by screws, so that the driving motor body drives the impeller frame to rotate to generate wind power for blowing after the motor driving shafts are limited and fixed, the driving motor body is arranged in the fan cover, corrosion of dust outside equipment to the driving motor body can be reduced, and bearing transmission influence caused by wind and sand entering the driving motor body is reduced;

the motor cover is buckled at the two ends of the driving motor body and is fixed by adopting screws, an integrally fixed labyrinth groove is formed in the outer side of the motor cover, the sealing cover is buckled on the outer side of the labyrinth groove to seal, and after the labyrinth groove on the motor cover is matched with the dustproof groove on the sealing cover, sand dust, salt fog and acid-base liquid can be effectively prevented from splashing onto the fan and then permeate into the motor to cause damage of the fan, so that the service life of equipment is prolonged, and the maintenance cost is reduced.

Preferably, the dustproof slot corresponding to the labyrinth slot is formed in the inner side of the sealing cover, the labyrinth slot is embedded into the dustproof slot and is embedded with the sealing cover, a plurality of mounting holes are formed in the outer side of the sealing cover, the fixing screw is arranged in the mounting holes, the hexagonal groove is formed in the top of the fixing screw, the bottom of the fixing screw penetrates through the mounting holes to be attached to the outer side of the motor driving shaft, the purpose of clamping and fixing is achieved, the sealing cover can be rapidly detached in a clamping and fixing mode through the fixing screw, and greater convenience is brought to equipment maintenance.

Preferably, the outside of the fixing frame is provided with an integrally formed supporting rib plate, the supporting rib plate is triangular, a plurality of air inlets are formed between the supporting rib plate and the fixing frame, the outside of the air inlets is surrounded by metal plates, and the plurality of metal plates are surrounded to form a triangular groove.

Preferably, the through hole has been seted up at the middle part of supporting rib plate, and the tip of motor drive axle has blotter and linking piece, and linking piece is triangle-shaped, and linking piece embedding panel beating encloses the inside that closes the formation triangle recess, and the tip of linking piece has integrated into one piece's loose axle 9, and the through hole at supporting rib plate middle part is passed to the tip of loose axle 9 extends to the supporting rib plate outside, and the tip of motor drive axle passes the inside of sealed cowling embedding blotter.

Preferably, the side surface of the motor driving shaft is provided with a tangent plane, the tangent plane provided on the side surface of the motor driving shaft can avoid autorotation with the cushion pad, and the motor driving shaft provided with the tangent plane on the side surface can destroy the cylindrical shape of the cushion pad, so that friction force is generated to prevent autorotation when the motor driving shaft is contacted with the cushion pad.

Preferably, the blotter is the rubber material, and the outside of blotter has the sand grip, and a plurality of strip straight slots have been seted up to the inside of joining piece, and blotter and joining piece gomphosis, the inside of motor drive shaft tip embedding blotter is received its parcel when the transmission, can avoid producing vibration between the metal parts and lead to equipment resonance to avoid long-time shake to take place the part and drop, and then increase equipment life, the noise that can reduce equipment operation and produce again by the isolated metal collision of blotter brings better experience for the use place.

Preferably, the impeller frame comprises blades and fixed rings, each blade is inclined, a plurality of blades are annularly arranged, the fixed rings are welded and fixed at the middle part and the two ends of the impeller frame, the inner side of the fixed ring at the middle position is fixedly arranged on the outer wall of the driving motor body, the impeller frame is driven to synchronously rotate when the driving motor body rotates, and the inclined blades are used for realizing wind sweeping and wind outlet.

Preferably, the motor body and the impeller frame are rotationally driven.

Compared with the prior art, the utility model has the beneficial effects that:

1. the motor cover penetrates through the motor driving shaft to be buckled at two ends of the driving motor body and is embedded with the motor driving shaft, a dustproof groove corresponding to the labyrinth groove is formed in the inner side of the sealing cover, the labyrinth groove is embedded into the dustproof groove and is embedded with the sealing cover, and the labyrinth grooves are buckled with the dustproof groove ring, so that the sealing effect is achieved, sand dust, salt fog and acid-base liquid can be effectively prevented from leaking into the motor after being splashed onto the fan after being matched with the dustproof groove on the sealing cover, the fan is damaged, the service life of equipment is prolonged, and the maintenance cost is reduced;

2. the fixing frame is arranged on the outer side of the fan cover by adopting a screw, and the motor driving shaft is connected with the fixing frame through the connecting block to realize linkage, so that the motor driving shaft does not rotate, the driving motor body rotates, the impeller frame on the outer side is driven to synchronously rotate when the driving motor body rotates, the motor driving shaft does not rotate, two ends of the motor driving shaft extend out, the motor driving shaft is fixed on the connecting block, and the motor driving shaft is a standing piece and is not supported by a bearing any more, so that the bearing is effectively prevented from being polluted by external dust; the outside of blotter has the sand grip, and a plurality of strip straight slots have been seted up to the inside of joining the piece, and the blotter is the rubber material with joining the piece gomphosis, and the inside of blotter is received its parcel to the motor drive shaft tip embedding blotter when the transmission, can avoid producing vibration between the metal parts and lead to equipment resonance to avoid long-time shake to take place the part to drop, and then increase equipment life, the noise that reducible equipment operation produced again by the isolated metal collision of blotter brings better experience for the use place.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic cross-sectional view of the present utility model;

FIG. 3 is a schematic diagram of an explosive structure according to the present utility model.

In the figure: 100. a fan cover; 101. an air outlet; 102. an air inlet; 200. a driving motor body; 201. a motor drive shaft; 202. a motor cover; 203. a labyrinth groove; 204. a sealing cover; 205. a cushion pad; 206. a joint block; 207. a fixing frame; 208. a support rib plate; 209. a movable shaft; 300. an impeller frame; 301. a blade; 302. a fixing ring; 400. and (5) fixing the screw rod.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1-3, the present utility model provides a technical solution: a closed fan motor structure, comprising;

the airtight structure consists of a fan cover 100, a driving motor body 200 and a blade wheel frame 300;

the two ends of the fan cover 100 are provided with air inlets 102, and the top of the fan cover 100 is provided with an integrally formed air outlet 101;

the driving motor body 200 is positioned in the fan cover 100, the impeller frame 300 is sleeved on the outer side of the driving motor body 200, motor driving shafts 201 are arranged at two ends of the driving motor body 200, two identical fixing frames 207 are arranged at two ends of the motor driving shafts 201, and the fixing frames 207 are arranged on the outer side of the air inlet 102 by adopting screws, so that the driving motor body 200 drives the impeller frame 300 to rotate to generate wind force to blow after the motor driving shafts 201 are limited and fixed, the driving motor body 200 is arranged in the fan cover 100, corrosion of dust outside equipment to the driving motor body 200 body can be reduced, and bearing transmission influence caused by wind sand entering the driving motor body 200 is reduced;

two ends of the driving motor body 200 are provided with two identical motor covers 202 and a sealing cover 204, the two motor covers 202 are buckled at two ends of the driving motor body 200 and are fixed by adopting screws, an integrally fixed labyrinth groove 203 is arranged at the outer side of the motor cover 202, the sealing cover 204 is buckled at the outer side of the labyrinth groove 203 for sealing, and after the labyrinth groove 203 on the motor cover 202 is matched with a dustproof groove on the sealing cover 204, sand dust, salt fog and acid-base liquid can be effectively prevented from splashing onto a fan and then permeate into the motor to cause fan damage, so that the service life of equipment is prolonged, and the maintenance cost is reduced.

Further, the dustproof slot corresponding to the labyrinth slot 203 is formed in the inner side of the sealing cover 204, the labyrinth slot 203 is embedded into the dustproof slot to be embedded with the sealing cover 204, a plurality of mounting holes are formed in the outer side of the sealing cover 204, the fixing screw 400 is arranged in the mounting holes, a hexagonal groove is formed in the top of the fixing screw 400, the bottom of the fixing screw 400 penetrates through the mounting holes to be attached to the outer side of the motor driving shaft 201, the purpose of clamping and fixing is achieved, the sealing cover 204 can be rapidly detached in a mode of clamping and fixing the fixing screw 400, and greater convenience is brought to equipment maintenance.

Further, the outer side of the fixing frame 207 is provided with an integrally formed supporting rib plate 208, the supporting rib plate 208 is triangular, a plurality of air inlets are formed between the supporting rib plate 208 and the fixing frame 207, the outer side of each air inlet is surrounded by metal plates, and a triangular groove is formed by surrounding the plurality of metal plates.

Further, a through hole is formed in the middle of the supporting rib plate 208, a buffer pad 205 and a connecting block 206 are arranged at the end of the motor driving shaft 201, the connecting block 206 is triangular, the connecting block 206 is embedded into the metal plate to enclose the inside of the triangular groove, an integrally formed movable shaft 209 is arranged at the end of the connecting block 206, the end of the movable shaft 209 penetrates through the through hole in the middle of the supporting rib plate 208 to extend to the outer side of the supporting rib plate 208, and the end of the motor driving shaft 201 penetrates through the sealing cover 204 to be embedded into the buffer pad 205.

Further, the side surface of the motor driving shaft 201 is provided with a tangential surface, the tangential surface provided on the side surface of the motor driving shaft 201 can avoid autorotation with the cushion pad 205, and the motor driving shaft 201 provided with a tangential surface on the side surface can break the cylindrical shape thereof, thereby generating friction force to prevent autorotation when contacting with the cushion pad 205.

Further, the blotter 205 is the rubber material, and the outside of blotter 205 has the sand grip, and a plurality of strip straight slots have been seted up to the inside of joint piece 206, and blotter 205 and joint piece 206 gomphosis, the inside of motor drive shaft 201 tip embedding blotter 205 is wrapped up by it when the transmission, can avoid producing vibration between the metal parts and lead to equipment resonance to avoid long-time shake to take place the part and drop, and then increase equipment life, the noise that can reduce equipment operation production again by the isolated metal collision of blotter 205 brings better experience for the use place.

Further, the impeller frame 300 is composed of blades 301 and fixing rings 302, each blade 301 is inclined, the plurality of blades 301 are annularly arranged, the fixing rings 302 are welded and fixed at the middle part and two ends of the impeller frame 300, the inner side of the fixing ring 302 at the middle position is fixedly arranged on the outer wall of the driving motor body 200, the impeller frame 300 is driven to synchronously rotate when the driving motor body 200 rotates, and air sweeping and air outlet are realized by the inclined blades 301.

Further, the motor body 200 and the impeller carrier 300 are rotationally driven.

Working principle: when the motor cover 202 penetrates through the motor driving shaft 201 to be buckled at two ends of the driving motor body 200 and is embedded with the motor driving shaft, the inner side of the sealing cover 204 is provided with a dustproof groove corresponding to the labyrinth groove 203, the labyrinth groove 203 is embedded into the dustproof groove and is embedded with the sealing cover 204, and the labyrinth grooves 203 are buckled with the dustproof groove ring, so that the sealing effect is realized, and after the labyrinth groove 203 on the motor cover 202 is matched with the dustproof groove on the sealing cover 204, sand dust, salt mist and acid-base liquid can be effectively prevented from splashing onto a fan and then penetrating into the motor to damage the fan, the service life of equipment is prolonged, and the maintenance cost is reduced;

further, the fixing frame 207 is mounted on the outer side of the fan cover 100 by adopting a screw, the motor driving shaft 201 is connected with the fixing frame 207 through the connecting block 206 to realize linkage, so that the motor driving shaft 201 does not rotate, the driving motor body 200 rotates to drive the impeller frame 300 on the outer side to synchronously rotate, the motor driving shaft 201 does not rotate, two ends of the motor driving shaft 201 extend out, the motor driving shaft 201 is fixed on the connecting block 206, the motor driving shaft 201 is a standing piece and is not supported by a bearing any more, and the bearing is effectively prevented from being polluted by external dust;

further, the outer side of the buffer pad 205 is provided with a convex strip, the inside of the connecting block 206 is provided with a plurality of strip-shaped straight grooves, the buffer pad 205 is embedded with the connecting block 206, the buffer pad 205 is made of rubber, and the end part of the motor driving shaft 201 is embedded into the inside of the buffer pad 205 and wrapped by the buffer pad 205 during transmission, so that equipment resonance caused by vibration between metal parts can be avoided, and accordingly, the long-time shaking is avoided, the service life of the equipment is prolonged, noise generated by running of the equipment can be reduced due to the fact that the buffer pad 205 isolates metal collision, and better experience is brought to a use place;

the impeller frame 300 has a plurality of fixing rings 302 at both ends, which can prevent the deformation of the blades 301 under the condition of sand wind and dust accumulation and the integral vibration of the impeller frame 300 caused by the deformation.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. A closed fan motor structure is characterized in that: comprises the following steps of;

the air-tight structure consists of a fan cover (100), a driving motor body (200) and an impeller frame (300);

air inlets (102) are formed in two ends of the fan cover (100), and an integrally formed air outlet (101) is formed in the top of the fan cover (100);

the driving motor body (200) is positioned in the fan cover (100), the impeller frame (300) is sleeved on the outer side of the driving motor body (200), motor driving shafts (201) are arranged at two ends of the driving motor body (200), two identical fixing frames (207) are arranged at two ends of the motor driving shafts (201), and the fixing frames (207) are arranged on the outer side of the air inlet (102) by screws, so that the driving motor body (200) drives the impeller frame (300) to rotate after the motor driving shafts (201) are limited and fixed to generate wind power for blowing;

two ends of the driving motor body (200) are provided with two identical motor covers (202) and sealing covers (204), the two motor covers (202) are buckled at two ends of the driving motor body (200) and are fixed by adopting screws, the outer sides of the motor covers (202) are provided with integrally fixed labyrinth grooves (203), and the sealing covers (204) are buckled at the outer sides of the labyrinth grooves (203) to seal.

2. The sealed fan motor structure according to claim 1, wherein: the inside of sealed cowling (204) has been seted up and has been maked up dustproof slot that corresponds with labyrinth groove (203), and labyrinth groove (203) embedding dustproof inslot and sealed cowling (204) gomphosis, and a plurality of mounting holes have been seted up in the outside of sealed cowling (204), and the inside of mounting hole has fixing screw (400), and hexagonal recess has been seted up at the top of fixing screw (400), and the outside laminating of mounting hole and motor drive shaft (201) is passed to the bottom of fixing screw (400) to reach the fixed purpose of clamp.

3. The sealed fan motor structure according to claim 1, wherein: the outside of mount (207) has integrated into one piece's supporting rib plate (208), and supporting rib plate (208) are triangle-shaped, has seted up a plurality of air inlets between supporting rib plate (208) and mount (207), and the air inlet outside adopts the panel beating to surround, and a plurality of panel beating enclose and close and form the triangle recess.

4. A sealed fan motor structure according to claim 3, wherein: through-holes have been seted up at the middle part of supporting gusset (208), the tip of motor drive shaft (201) has blotter (205) and linking piece (206), linking piece (206) are triangle-shaped, linking piece (206) embedding panel beating encloses the inside of closing and forming the triangle recess, the tip of linking piece (206) has integrated into one piece's loose axle (209), the tip of loose axle (209) passes the through-hole at supporting gusset (208) middle part and extends to supporting gusset (208) outside, the tip of motor drive shaft (201) passes the inside of sealed cowling (204) embedding blotter (205).

5. The sealed fan motor structure according to claim 1, wherein: the side surface of the motor driving shaft (201) is provided with a tangent plane, and the tangent plane arranged on the side surface of the motor driving shaft (201) can avoid autorotation with the buffer pad (205).

6. The sealed fan motor structure according to claim 4, wherein: the buffer cushion (205) is made of rubber, raised strips are arranged on the outer side of the buffer cushion (205), a plurality of strip-shaped straight grooves are formed in the connecting block (206), and the buffer cushion (205) is embedded with the connecting block (206).

7. The sealed fan motor structure according to claim 1, wherein: the impeller frame (300) comprises blades (301) and fixing rings (302), each blade (301) is inclined, the blades (301) are annularly arranged, the fixing rings (302) are welded and fixed at the middle part and the two ends of the impeller frame (300), and the inner side of the fixing ring (302) at the middle position is fixedly arranged on the outer wall of the driving motor body (200).

8. A fan motor, characterized in that: comprising a rotary drive motor body (200) according to any one of claims 1-7 and an impeller carrier (300).