CN212028201U

CN212028201U - Diagonal flow fan

Info

Publication number: CN212028201U
Application number: CN202020694849.4U
Authority: CN
Inventors: 顾鉴
Original assignee: Zhejiang Shangyang Ventilation Equipment Co ltd
Current assignee: Zhejiang Shangyang Ventilation Equipment Co ltd
Priority date: 2020-04-29
Filing date: 2020-04-29
Publication date: 2020-11-27
Anticipated expiration: 2030-04-29

Abstract

The utility model discloses a diagonal flow fan, including dryer and impeller, the impeller includes wheel hub and the slope stator of setting at the wheel hub outer wall, the inside of dryer is equipped with the protection drum, wheel hub installs the fixed plate near one side of protection drum, be equipped with the draw-in groove on the fixed plate, the tip of protection drum is equipped with the fixture block with draw-in groove matched with, the tip inboard of protection drum is equipped with the arch, protruding joint has the motor support board that is connected with the fixed plate, the inside of protection drum is equipped with driving motor, driving motor is connected with the axis of rotation, the outside of axis of rotation is equipped with the axle sleeve. The utility model discloses simple structure, reasonable in design can the noise reduction.

Description

Diagonal flow fan

Technical Field

The utility model discloses a diagonal flow fan belongs to the ventilation equipment field.

Background

The oblique flow fan is a fan between an axial flow fan and a centrifugal fan, an impeller of the oblique flow fan enables air to do centrifugal motion and axial motion, the motion of the air in a shell of the oblique flow fan is mixed with two motion forms of axial flow and centrifugation, the oblique flow fan is widely applied to ventilation places of high-grade civil buildings such as hotels, restaurants, shopping malls, office buildings, gyms and the like, most of motors in the existing oblique flow fan are directly exposed in the air, impurities in the air can be attached to the surface of the motor to influence the heat dissipation of the motor, therefore, a protection cylinder can be arranged outside the motor at present, but the protection cylinder is generally fixed in an air duct in a welding and fixing mode, the later-stage disassembly, installation and maintenance are very troublesome, and the protection cylinder cannot be cleaned when the sundries in the protection cylinder are covered more.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a diagonal flow fan for solving the above-mentioned problems.

The utility model achieves the above purpose through the following technical scheme, a diagonal flow fan comprises an air duct and an impeller, wherein the impeller comprises a wheel hub and an inclined guide vane arranged on the outer wall of the wheel hub, a protective cylinder is arranged in the air duct, a fixed plate is arranged on one side of the wheel hub close to the protective cylinder, a clamping groove is arranged on the fixed plate, a clamping block matched with the clamping groove is arranged at the end part of the protective cylinder, a bulge is arranged at the inner side of the end part of the protective cylinder, a motor supporting plate connected with the fixed plate is clamped on the bulge, a driving motor is arranged in the protective cylinder, the driving motor is connected with a rotating shaft, the rotating shaft passes through the motor supporting plate and the fixed plate and is connected with the impeller, a shaft sleeve is arranged at the outer side of the rotating shaft, the shaft sleeve is fixed with the wheel hub through, the air duct is characterized in that a guide ring is arranged between the air duct and the protective cylinder, the guide ring is fixed on the inner surface of the air duct, an muffling section is arranged at the air inlet of the air duct, a glass wool layer and a connecting block are arranged on the inner wall of the muffling section, and a dustproof steel wire mesh is arranged on the connecting block.

Preferably, the guide ring comprises at least six radial guide vanes, the radial guide vanes are uniformly distributed on the inner surface of the air duct, and the radial guide vanes are in an axial arc plate shape.

Preferably, the protective cylinder is provided with a plurality of heat dissipation through holes.

Preferably, the upper end of the outer side of the air duct is provided with a hanging ring.

Preferably, the inclined guide vanes are provided with 11-13 pieces, and the inclined guide vanes are uniformly distributed on the hub.

Preferably, the lower end of the outer side of the air duct is provided with two bases.

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

the utility model has the advantages that the dustproof steel wire mesh and the protection cylinder are arranged, the dustproof effect can be achieved, the influence of dust and the like on the operation of the driving motor is avoided, the service life of the driving motor is prolonged, the protection cylinder is respectively connected with the motor supporting plate and the fixed plate in a clamping manner, the installation and the disassembly are convenient, and the later-stage cleaning and maintenance are convenient; the glass wool layer is arranged on the inner wall of the silencing section, and has a large number of tiny air holes, so that the effects of heat preservation and insulation, sound absorption and noise reduction, safety protection and the like can be achieved; through setting up the water conservancy diversion circle for the air current is smooth to pass the dryer under the guide of water conservancy diversion circle, avoids the air current violent collision to produce huge noise and influence the stability of equipment.

Drawings

Fig. 1 is a schematic structural view of an oblique flow fan of the present invention;

FIG. 2 is an enlarged view of FIG. 1 at A;

fig. 3 is a side view of a diagonal flow fan of the present invention;

fig. 4 is a schematic structural view of the radial guide vane in the diagonal flow fan of the present invention.

Reference numerals: 1. a sound-deadening segment; 2. fixing a sleeve; 3. a shaft sleeve; 4. a fixing plate; 5. a rotating shaft; 6. a hoisting ring; 7. a motor support plate; 8. an air duct; 9. a glass wool layer; 10. dustproof steel wire meshes; 11. connecting blocks; 12. a hub; 13. inclining the guide vanes; 14. a drive motor; 15. a flow guide ring; 16. a heat dissipating through hole; 17. a protective cylinder; 171. a protrusion; 172. a clamping block; 18. a base; 19. and radial guide vanes.

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 belong to the protection scope of the present invention.

Referring to fig. 1 to 4, a diagonal flow fan comprises an air duct 8 and an impeller, the impeller comprises a hub 12 and inclined guide vanes 13 arranged on the outer wall of the hub 12, the inclined guide vanes 13 are provided with 11 to 13 pieces, the inclined guide vanes 13 are uniformly distributed on the hub 12, the arrangement of the inclined guide vanes 13 not only prevents air flow from forming dead corners easily, but also has uniform speed change, high air guiding quantity and obvious noise reduction effect, a protection cylinder 17 is arranged inside the air duct 8, a fixing plate 4 is arranged on one side of the hub 12 close to the protection cylinder 17, a clamping groove is arranged on the fixing plate 4, a clamping block 172 matched with the clamping groove is arranged at the end part of the protection cylinder 17, a protrusion 171 is arranged on the inner side of the end part of the protection cylinder 17, a motor support plate 7 connected with the fixing plate 4 is clamped between the protection cylinder 17 and the motor support plate 7 and the fixing plate 4, the installation and, the protection cylinder 17 is provided with the plurality of heat dissipation through holes 16, so that the heat dissipation effect can be enhanced, the driving motor 14 is arranged inside the protection cylinder 17, the protection cylinder 17 can play a dustproof effect, the influence of dust and the like on the operation of the driving motor 14 is avoided, and the service life of the driving motor 14 is prolonged.

Driving motor 14 is connected with axis of rotation 5, axis of rotation 5 passes motor backup pad 7 and fixed plate 4 is connected with the impeller, the outside of axis of rotation 5 is equipped with axle sleeve 3, axle sleeve 3 is fixed mutually with wheel hub 12 through the bolt, axle sleeve 3's setting can reduce the wearing and tearing of axis of rotation 5, improve the life of axis of rotation 5, hemispherical fixed cover 2 is installed to the one end that driving motor 14 was kept away from to axis of rotation 5, fixed cover 2 is used for fixed impeller, prevent that the impeller from breaking away from axis of rotation 5 at the rotation in-process, and with fixed cover 2 design hemisphere, can reduce the resistance of air.

A diversion ring 15 is arranged between the air duct 8 and the protection cylinder 17, the diversion ring 15 is arranged to enable air flow to smoothly pass through the air duct 8 under the guidance of the diversion ring 15, the influence of huge noise generated by severe collision of the air flow on the stability of equipment is avoided, the diversion ring 15 comprises at least six radial diversion blades 19, the radial diversion blades 19 are uniformly distributed on the inner surface of the air duct 8, the radial diversion blades 19 are in an axial arc plate shape, the inner concave surface of each radial diversion blade faces the windward direction of the air flow, the air flow is guided into axial air flow by the radial diversion blades 19 in the diversion ring 15, the axial flow rate of the air flow is improved, the air pressure is increased, the air supply efficiency is improved, the diversion ring 15 is fixed on the inner surface of the air duct 8, an air inlet part of the air duct 8 is provided with an anechoic section 1, the inner wall of the anechoic section 1 is provided with a glass cotton layer 9 and, Sound absorption, noise reduction, safety protection and the like.

Connecting block 11 is detachable installs dustproof wire net 10, further strengthens dustproof effect, and the outside upper end of dryer 8 is equipped with rings 6, convenient hoist and mount.

Two bases 18 are arranged at the lower end of the outer side of the air duct 8, so that a good supporting effect can be achieved.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", 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 simplicity of description, and do not indicate or imply that the device or element being 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.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides an oblique flow fan, includes dryer (8) and impeller, characterized by: the impeller comprises a hub (12) and inclined guide vanes (13) arranged on the outer wall of the hub (12), a protection cylinder (17) is arranged inside the air duct (8), a fixing plate (4) is installed on one side, close to the protection cylinder (17), of the hub (12), a clamping groove is formed in the fixing plate (4), a clamping block (172) matched with the clamping groove is arranged at the end of the protection cylinder (17), a protrusion (171) is arranged on the inner side of the end of the protection cylinder (17), a motor supporting plate (7) connected with the fixing plate (4) is connected with the protrusion (171) in a clamped mode, a driving motor (14) is arranged inside the protection cylinder (17), the driving motor (14) is connected with a rotating shaft (5), the rotating shaft (5) penetrates through the motor supporting plate (7) and the fixing plate (4) and is connected with the impeller, and a shaft sleeve (3) is arranged on, axle sleeve (3) are fixed mutually through bolt and wheel hub (12), axis of rotation (5) are kept away from hemispherical fixed cover (2) are installed to the one end of driving motor (14), the air inlet department of dryer (8) is equipped with noise elimination section (1), be equipped with glass cotton layer (9) and connecting block (11) on the inner wall of noise elimination section (1), install dustproof wire net (10) on connecting block (11).

2. The diagonal flow fan of claim 1, wherein: be equipped with between dryer (8) and protection drum (17) water conservancy diversion circle (15), the internal surface at dryer (8) is fixed in water conservancy diversion circle (15), water conservancy diversion circle (15) are including being no less than six radial water conservancy diversion leaves (19), radial water conservancy diversion leaf (19) evenly distributed is at the internal surface of dryer (8), radial water conservancy diversion leaf (19) are axial arc platelike.

3. The diagonal flow fan of claim 1, wherein: the protective cylinder (17) is provided with a plurality of heat dissipation through holes (16).

4. The diagonal flow fan of claim 1, wherein: and a hanging ring (6) is arranged at the upper end of the outer side of the air duct (8).

5. The diagonal flow fan of claim 1, wherein: the inclined guide vanes (13) are arranged in 11-13 pieces, and the inclined guide vanes (13) are uniformly distributed on the hub (12).

6. The diagonal flow fan of claim 1, wherein: two bases (18) are arranged at the lower end of the outer side of the air duct (8).