CN211573806U

CN211573806U - Novel explosion-proof axial fan

Info

Publication number: CN211573806U
Application number: CN201922226688.6U
Authority: CN
Inventors: 钱运昌
Original assignee: Shangwei Electromechanical Equipment Co ltd
Current assignee: Shangwei Electromechanical Equipment Co ltd
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2020-09-25
Anticipated expiration: 2029-12-11

Abstract

The utility model relates to the technical field of fans, and a novel explosion-proof axial fan is disclosed, including the bed plate, the screw hole has been seted up on the surface of bed plate, and the bottom fixed mounting of bed plate has the dwang, the bottom fixed mounting of dwang has base motor platform, the middle part fixed mounting at base motor bench portion has the dust hood. This novel explosion-proof axial fan, through being provided with the dustcoat, filter looped netowrk and connecting block and reach the purpose that the explosion-proof machine separates the dirt cooling, fix in the explosion-proof machine outside through being provided with round platform tube-shape dustcoat, can block adsorbing the effectual isolation of impurity in the dust of coming, be provided with the filtration looped netowrk in the dustcoat junction simultaneously, it is unanimous with the explosion-proof machine diameter to filter the looped netowrk diameter, when the air absorption comes, filter the looped netowrk and can filter dust wherein, have some air to pass the dustcoat simultaneously, cool down explosion-proof fan.

Description

Novel explosion-proof axial fan

Technical Field

The utility model relates to a fan technical field specifically is a novel explosion-proof axial fan.

Background

The explosion-proof axial flow fan is a novel fan which is improved and designed on the basis of BT30-11 in the eighties of China, is suitable for conveying flammable, explosive and non-corrosive gas, has the environment temperature not exceeding 60 ℃, is widely applied to ventilation or strong heating radiation in general factories, warehouses, offices and houses, can also be installed in series at intervals in a longer exhaust pipeline so as to improve the pressure in the pipeline, can be used as a free fan by dismounting a motor, and is in the way that the explosion-proof axial flow fan is used for separating an electric part which can generate sparks, electric arcs and dangerous temperatures from surrounding explosive gas mixtures when the fan runs or works, and cannot generate the hard condition of a fire method when the fan rubs with a shell under special conditions so as to ensure the production safety.

The existing explosion-proof shaft fan also has some problems: one of them, current explosion-proof axle fan often has possessed explosion-proof effect to a certain extent to comparatively stricter of motor parcel like this, but at the in-service use, some dust impurity of surface adhesion still easily do not do benefit to the heat dissipation of motor simultaneously yet for this fan can't work for a long time.

In addition, the existing explosion-proof shaft fan is large in structure and heavy in weight, the air suction and exhaust direction is not well adjusted when the explosion-proof shaft fan is used, the whole carrying and adjustment are often needed, the use is troublesome, and the operation is inconvenient.

SUMMERY OF THE UTILITY MODEL

To current explosion-proof axial fan not enough, the utility model provides a novel explosion-proof axial fan possesses the advantage that separates the dirt heat dissipation and easily adjust the direction, has solved the problem that the above-mentioned technical background proposed.

The utility model provides a following technical scheme: a novel explosion-proof axial flow fan comprises a base plate, wherein the surface of the base plate is provided with a threaded hole, the bottom of the base plate is fixedly provided with a rotating rod, the bottom of the rotating rod is fixedly provided with a base motor table, the middle part of the top part of the base motor table is fixedly provided with a dust-isolating cover, the middle part of the top part of the base plate is fixedly provided with two supporting rods, the middle parts of the two supporting rods are fixedly welded with an outer cover, the left side of the periphery of the outer cover is fixedly provided with a filtering ring net, the middle part of the inner part of the outer cover is fixedly provided with four connecting blocks, the middle parts of the four connecting blocks are fixedly provided with an explosion-proof motor, the left side of the explosion-proof motor is fixedly provided with a rotating shaft, the left side of the rotating shaft is fixedly provided with a, and a rear filter screen is fixedly arranged on the left side of the shell.

Carefully, eight screw holes, every are seted up on the bed plate surface be forty-five degrees align to grid between the screw hole, and the screw hole runs through the whole and base motor bench top of bed plate in proper order.

Carefully, the height value of dust separation cover is less than the height value of dwang, and the dust separation cover does not contact bottom the bed plate, the top fixed mounting of dust separation cover has one deck rubber cushion.

The fine selection, the dustcoat is the funnel tubbiness, filter looped netowrk fixed mounting and be in dustcoat round platform and barrel juncture, and the diameter value of filtering the looped netowrk is unanimous with explosion-proof machine's diameter value.

And carefully selecting, wherein the surface holes of the front filter screen are larger than those of the rear filter screen, and the surface holes of the rear filter screen are larger than those of the filter ring screen.

Carefully, the connecting block is provided with four altogether, and the both ends of connecting block respectively with the inside and explosion-proof machine external contact of dustcoat, the small hole has been seted up on the surface of connecting block.

And carefully selecting, wherein the upper part of the shell is circular, and the bottom of the shell is flat.

With current explosion-proof axial fan contrast, the utility model discloses possess following beneficial effect:

1. this novel explosion-proof axial fan, through being provided with the dustcoat, filter looped netowrk and connecting block and reach the purpose that the explosion-proof machine separates the dirt cooling, fix in the explosion-proof machine outside through being provided with round platform tube-shape dustcoat, can block adsorbing the effectual isolation of impurity in the dust of coming, be provided with the filtration looped netowrk in the dustcoat junction simultaneously, it is unanimous with the explosion-proof machine diameter to filter the looped netowrk diameter, when the air absorption comes, filter the looped netowrk and can filter dust wherein, have some air to pass the dustcoat simultaneously, cool down explosion-proof fan.

2. This novel explosion-proof axial fan, through being provided with the dwang, screw hole and base motor platform reach the purpose of easily adjusting the direction, whole fan structure passes through bracing piece and bed plate fixed mounting, the user can utilize the orientation of dwang adjustment fan, through being provided with eight screw holes, correspond eight different directions, can satisfy all orientations of fan, also be provided with corresponding screw hole at base motor platform simultaneously, the user can utilize fixing bolt to carry out the rigidity to the carousel, simple effective good operation.

Drawings

FIG. 1 is a schematic sectional view of the whole structure of the present invention;

FIG. 2 is a schematic view of the structure of the present invention without the inner part of the housing;

FIG. 3 is a schematic view of the overall appearance of the structure of the present invention;

fig. 4 is the structure of the utility model discloses the looped netowrk is connected with the dustcoat schematic diagram.

In the figure: 1. a base plate; 2. a threaded hole; 3. rotating the rod; 4. a base motor station; 5. a dust shield; 6. a support bar; 7. a housing; 8. filtering the looped network; 9. connecting blocks; 10. an explosion-proof motor; 11. a rotating shaft; 12. a hub; 13. a blade; 14. a housing; 15. a front filter screen; 16. and (4) a rear filter screen.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.

Referring to fig. 1-4, a novel explosion-proof axial flow fan comprises a base plate 1, a threaded hole 2 is formed on the surface of the base plate 1, a rotating rod 3 is fixedly installed at the bottom of the base plate 1, a base motor table 4 is fixedly installed at the bottom of the rotating rod 3, a dust-isolating cover 5 is fixedly installed at the middle of the top of the base motor table 4, two supporting rods 6 are fixedly installed at the middle of the top of the base plate 1, an outer cover 7 is fixedly welded at the middle of the two supporting rods 6, a filtering ring net 8 is fixedly installed at the left side of the periphery of the outer cover 7, four connecting blocks 9 are fixedly installed at the middle of the inner part of the outer cover 7, an explosion-proof motor 10 is fixedly installed at the middle of the four connecting blocks 9, a rotating shaft 11 is fixedly installed at the left side of the explosion-proof motor 10, a hub 12, a front filter screen 15 is fixedly mounted on the right side of the housing 14, and a rear filter screen 16 is fixedly mounted on the left side of the housing 14.

Wherein, eight screw holes 2 have been seted up on bed plate 1 surface, are forty-five degrees align to grid between every screw hole 2, and screw hole 2 runs through 1 whole and base motor platform 4 tops of bed plate in proper order, and the user can be through rotating bed plate 1, realizes the adjustment to the fan position, is provided with eight screw holes 2 simultaneously and compares eight directions in proper order, through 1 board of fixing bolt threaded connection bed plate and base motor platform 4, just can realize the fixed of position.

Wherein, the altitude value that separates dust cover 5 is less than the altitude value of dwang 3, and separates dust cover 5 not with the 1 bottom contact of bed plate, separates the top fixed mounting of dust cover 5 and has one deck rubber cushion, separates dust cover 5 not with the 1 contact of bed plate, guarantees that bed plate 1 can normally rotate the work, is provided with the rubber cushion on separating dust cover 5 then in order to guarantee to reduce as far as possible and 1 hole of bed plate, prevents that the dust from getting into.

Wherein, dustcoat 7 is the funnel tubbiness, filters 8 fixed mounting of looped netowrk at 7 round platforms of dustcoat and barrel juncture, and the diameter value of filtering looped netowrk 8 is unanimous with the diameter value of explosion proof machine 10, and dustcoat 7 can guarantee that explosion proof machine 10 surface can not be stained with the impurity dust, sets the flow of the funnel tubbiness of being convenient for wind simultaneously, sets up simultaneously and filters looped netowrk 8 and can guarantee that clean air enters into explosion proof machine 10 in the juncture, can cool down explosion proof machine 10.

Wherein, preceding filter screen 15 surface hole is greater than 16 surface holes of back filter screen, and 16 surface holes of back filter screen are greater than 8 surface holes of filtration looped netowrk, and preceding filter screen 15 and back filter screen 16 belong to induced draft and filter, and the requirement is not strict to the particle size, and filtration looped netowrk 8 is to get into explosion-proof machine 10 air and filter, and distinctive filtration has guaranteed the filter effect, has reduced manufacturing cost.

Wherein, connecting block 9 is provided with four altogether, and the both ends of connecting block 9 respectively with 7 inside and explosion proof machine 10 external contact of dustcoat, little hole has been seted up on the surface of connecting block 9, connecting block 9 has played a effect of connecting dustcoat 7 and fan, has seted up the hole simultaneously on connecting block 9, the flow of the air of being convenient for

The upper part of the casing 14 is circular, the bottom of the casing 14 is flat, the upper part is circular to adapt to the working track of the blades 13, and the lower part is flat to facilitate the installation of the casing 14 and the base plate 1.

The working principle is as follows: during the use, start explosion proof machine 10, explosion proof machine 10 drives axis of rotation 11 and blade 13 work, powerful suction is drawn external air and is come, the air filters for the first time through preceding filter screen 15 earlier, filter through back filter screen 16 again afterwards, it is comparatively clean to guarantee the air of output, in the extraction air, some air can be through filtering looped netowrk 8, it is outside to enter into explosion proof machine 10, need the conversion adjustment position of induced drafting when explosion proof axle fan, can utilize dwang 3 to rotate bed plate 1 position, the realization is to the adjustment of fan orientation, it can to fix to utilize the bolt to pass screw hole 2 afterwards.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Also in the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for simplicity of description, and do not indicate or imply that the equipment or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. In addition, in the drawings of the present invention, the filling pattern is only for distinguishing the pattern layer, and is not limited to any other pattern.

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

Claims

1. The utility model provides a novel explosion-proof axial fan, includes bed plate (1), its characterized in that: threaded holes (2) are formed in the surface of the base plate (1), a rotating rod (3) is fixedly mounted at the bottom of the base plate (1), a base motor table (4) is fixedly mounted at the bottom of the rotating rod (3), a dust-isolating cover (5) is fixedly mounted at the middle of the top of the base motor table (4), two supporting rods (6) are fixedly mounted at the middle of the top of the base plate (1), an outer cover (7) is fixedly welded at the middle of the supporting rods (6), a filtering ring net (8) is fixedly mounted on the left side of the periphery of the outer cover (7), four connecting blocks (9) are fixedly mounted at the middle of the inner part of the outer cover (7), an explosion-proof motor (10) is fixedly mounted at the middle of the four connecting blocks (9), a rotating shaft (11) is fixedly mounted at the left side of the explosion-proof motor (10), and a wheel hub, the utility model discloses a fan base plate, including wheel hub (12), the outside fixed mounting of wheel hub (12) has blade (13), the outside fixed mounting at base plate (1) top has shell (14), filter screen (15) before the right side fixed mounting of shell (14), and the left side fixed mounting of shell (14) has back filter screen (16).

2. The novel explosion-proof axial flow fan of claim 1, characterized in that: eight threaded holes (2) are seted up on bed plate (1) surface, every be forty-five degrees align to grid between threaded hole (2), and threaded hole (2) run through bed plate (1) wholly and base motor platform (4) top in proper order.

3. The novel explosion-proof axial flow fan of claim 1, characterized in that: the height value of dust separation cover (5) is less than the height value of dwang (3), and dust separation cover (5) do not contact bottom bedplate (1), the top fixed mounting of dust separation cover (5) has one deck rubber cushion.

4. The novel explosion-proof axial flow fan of claim 1, characterized in that: the outer cover (7) is in a funnel barrel shape, the filtering ring net (8) is fixedly installed at the junction of the circular table of the outer cover (7) and the barrel, and the diameter value of the filtering ring net (8) is consistent with that of the explosion-proof motor (10).

5. The novel explosion-proof axial flow fan of claim 1, characterized in that: the surface holes of the front filter screen (15) are larger than those of the rear filter screen (16), and the surface holes of the rear filter screen (16) are larger than those of the filter ring net (8).

6. The novel explosion-proof axial flow fan of claim 1, characterized in that: the anti-explosion motor is characterized in that the number of the connecting blocks (9) is four, two ends of each connecting block (9) are respectively in contact with the inside of the outer cover (7) and the outside of the anti-explosion motor (10), and small holes are formed in the surface of each connecting block (9).

7. The novel explosion-proof axial flow fan of claim 1, characterized in that: the upper part of the shell (14) is annular, and the bottom of the shell (14) is flat.