CN210565320U

CN210565320U - Axial fan closing device

Info

Publication number: CN210565320U
Application number: CN201921624465.9U
Authority: CN
Inventors: 许兴建
Original assignee: Xiuwu Hongyuan Heating And Cooling Equipment Co Ltd
Current assignee: Xiuwu Hongyuan Heating And Cooling Equipment Co Ltd
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2020-05-19
Anticipated expiration: 2029-09-27

Abstract

The utility model discloses an axial fan closing device belongs to axial fan technical field. An axial flow fan pressing device comprises a main shaft, fan blades, a pressing assembly and a dustproof cap, wherein the fan blades are sleeved at the right end of the main shaft, the pressing assembly is distributed at the right end of the main shaft, the fan blades are fixedly connected with the main shaft through the pressing assembly, and the dustproof cap is installed on the right end face of the fan blades; the utility model fixes the fan blade and the main shaft through the compressing component, increases the friction force with the end surface of the fan blade by utilizing the anti-skid gasket with the cone structure, and avoids the problem that the bolt in the traditional mounting structure deforms in the long-time operation process by fixedly connecting with the main shaft and prolonging the stress area of the screw rod; the utility model discloses still at the flabellum right-hand member, more specifically the setting dust cap outside compressing tightly the subassembly right-hand member that says so avoids compressing tightly the pressing blade of subassembly right-hand member and the problem that external contact suffered the corruption.

Description

Axial fan closing device

Technical Field

The utility model relates to an axial fan technical field, more specifically say, relate to an axial fan closing device.

Background

The axial flow fan has a very wide application, namely, the axial flow fan and the fan blade have the same direction of air flow, such as an electric fan, and an air conditioner outer machine fan is an axial flow type running fan. The "axial flow" is so called because the gas flows parallel to the fan axis. Axial flow fans are typically used in applications where flow requirements are high and pressure requirements are low. The axial fan fixes the position and moves the air. The axial flow fan mainly comprises a fan impeller and a casing, and is simple in structure but high in data requirement.

The impeller mounting mode of the existing axial flow fan is that an impeller is screwed on a motor output shaft by a gasket and a bolt which are simple in structure, in the long-time operation process, the bolt is affected by the vibration stress of the motor, is deformed to a certain degree and is inconvenient to replace in the later maintenance process, the gasket is exposed outside for a long time and is easy to corrode, the service life of the gasket is shortened, and therefore the impeller pressing mode of the axial flow fan still has an improved space.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

The utility model aims at providing an axial fan closing device to solve the problem that proposes among the above-mentioned background art.

2. Technical scheme

An axial flow fan pressing device comprises a main shaft, fan blades, a pressing assembly and a dustproof cap, wherein the fan blades are sleeved at the right end of the main shaft, the pressing assembly is distributed at the right end of the main shaft, the fan blades are fixedly connected with the main shaft through the pressing assembly, and the dustproof cap is installed on the right end face of the fan blades;

the compressing assembly comprises a compressing piece arranged on the right side of the fan blade and a fixing piece arranged on the left side of the fan blade, a locking nut is arranged on the right side of the compressing piece, two anti-skid gaskets are symmetrically arranged between the fixing piece and the compressing piece, and the fan blade, the anti-skid gaskets, the fixing piece and the compressing piece are fixedly connected through a plurality of compressing bolts.

Preferably, the screw rod at the right end of the main shaft penetrates through the middle part of the fixing piece and is tightly welded with the fixing piece.

Preferably, the locking nut is in threaded connection with a screw at the right end of the main shaft.

Preferably, the anti-skid gasket is of a round table structure, and the big head end of the anti-skid gasket is tightly attached to the outer wall of the fan blade.

Preferably, clamp bolt is including the screw rod that runs through flabellum, anti-skidding gasket, stationary blade and compressing plate in proper order, the equal threaded connection of screw rod both sides tip has and is used for the gland nut who loosens flabellum, anti-skidding gasket, stationary blade and compressing plate reciprocal anchorage or each other.

Preferably, the dust cap is fixedly connected with the fan blades through a plurality of screws.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

the utility model fixes the fan blade and the main shaft through the compressing component, increases the friction force with the end surface of the fan blade by utilizing the anti-skid gasket with the cone structure, and avoids the problem that the bolt in the traditional mounting structure deforms in the long-time operation process by fixedly connecting with the main shaft and prolonging the stress area of the screw rod; the utility model discloses still at the flabellum right-hand member, more specifically the setting dust cap outside compressing tightly the subassembly right-hand member that says so avoids compressing tightly the pressing blade of subassembly right-hand member and the problem that external contact suffered the corruption.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic diagram of the overall structure of the present invention;

fig. 3 is a schematic diagram of the partial structure split of the present invention.

The reference numbers in the figures illustrate: 1. a main shaft; 2. a fan blade; 3. a compression assembly; 301. a compression sheet; 302. a fixing sheet; 303. locking the nut; 304. an anti-slip gasket; 305. a screw; 306. a compression nut; 4. a dust cap; 401. and (4) screws.

Detailed Description

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 to simplify the description, but do not indicate or imply that the device 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 the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1-3, the present invention provides a technical solution:

an axial flow fan pressing device comprises a main shaft 1, fan blades 2, a pressing assembly 3 and a dustproof cap 4, wherein the fan blades 2 are sleeved at the right end of the main shaft 1, the pressing assembly 3 is distributed at the right end of the main shaft 1, the fan blades 2 are fixedly connected with the main shaft 1 through the pressing assembly 3, and the dustproof cap 4 is installed on the right end face of the fan blades 2;

compressing tightly subassembly 3 is including setting up in compressing tightly piece 301 on flabellum 2 right side and setting up in the left stationary blade 302 of flabellum 2, and compressing tightly piece 301 right side is provided with lock nut 303, and the symmetry is equipped with two anti-skidding gaskets 304 between stationary blade 302 and the compressing tightly piece 301, all connects fixedly through a plurality of housing bolt between flabellum 2, anti-skidding gasket 304, stationary blade 302 and the compressing tightly piece 301.

The screw at the right end of the main shaft 1 penetrates through the middle part of the fixing piece 302 and is tightly welded with the fixing piece 302.

The locking nut 303 is in threaded connection with a screw at the right end of the main shaft 1.

The anti-slip gasket 304 is a truncated cone structure, and the big end of the anti-slip gasket 304 is tightly attached to the outer wall of the fan blade 2.

The hold-down bolt is including running through flabellum 2, anti-skidding gasket 304, stationary blade 302 and the screw rod 305 of pressing plate 301 in proper order, and the equal threaded connection of the both sides tip of screw rod 305 has and is used for the gland nut 306 that fixes flabellum 2, anti-skidding gasket 304, stationary blade 302 and pressing plate 301 each other or loosens each other.

The dust cap 4 is connected and fixed to the fan blade 2 by a plurality of screws 401.

The utility model relates to an axial fan closing device because there are some not enough in current axial fan's impeller mounting means, generally adopt simple structure's gasket and bolt to knot the impeller spiro union on motor output shaft, at long-time operation in-process, the bolt receives the influence of motor vibrations stress, takes place certain deformation and the inconvenient change of in-process is overhauld at the later stage, and the gasket exposes for a long time and easily receives the corruption in the external world, leads to its life to shorten. Therefore, the fan blade 2 is fixed with the spindle 1 through the pressing component 3, the friction force between the fan blade 2 and the end face of the fan blade is increased by the aid of the anti-skidding gasket 304 of the cone structure, the fan blade 2, the anti-skidding gasket 304, the fixing piece 302 and the pressing piece 301 are sequentially fastened by the aid of the screw 305 and the pressing nut 306, and the problem that bolts in a traditional mounting structure deform in a long-time operation process is solved by means of fixedly connecting the anti-skidding gasket 304, the fixing piece 302 and the pressing piece 301 with the spindle 1 and prolonging the stress area of; the utility model discloses still at 2 right-hand members of flabellum, more specifically the right-hand member outside of compressing tightly subassembly 3 that says so sets up dust cap 4, avoids compressing tightly the pressing blade 301 of 3 right-hand members of subassembly and the problem that external contact suffered to corrode.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an axial fan closing device, includes main shaft (1), flabellum (2), compresses tightly subassembly (3) and dust cap (4), its characterized in that: the fan blade (2) is sleeved at the right end of the main shaft (1), the pressing components (3) are distributed at the right end of the main shaft (1), the fan blade (2) is fixedly connected with the main shaft (1) through the pressing components (3), and the dustproof cap (4) is installed on the right end face of the fan blade (2);

compress tightly subassembly (3) including set up in compressing tightly piece (301) on flabellum (2) right side and set up in stationary blade (302) on flabellum (2) left side, compressing tightly piece (301) right side is provided with lock nut (303), the symmetry is equipped with two anti-skidding gaskets (304) between stationary blade (302) and compressing tightly piece (301), all fix through a plurality of clamp bolt connection between flabellum (2), anti-skidding gasket (304), stationary blade (302) and compressing tightly piece (301).

2. The axial fan pressing device according to claim 1, wherein: and a screw rod at the right end of the main shaft (1) penetrates through the middle part of the fixing piece (302) and is tightly welded with the fixing piece (302).

3. The axial fan pressing device according to claim 1, wherein: and the locking nut (303) is in threaded connection with a screw at the right end of the main shaft (1).

4. The axial fan pressing device according to claim 1, wherein: the anti-skid gasket (304) is of a round table structure, and the large end of the anti-skid gasket (304) is tightly attached to the outer wall of the fan blade (2).

5. The axial fan pressing device according to claim 1, wherein: the clamp bolt is including running through screw rod (305) of flabellum (2), anti-skidding gasket (304), stationary blade (302) and compressing tightly piece (301) in proper order, the equal threaded connection of screw rod (305) both sides tip has and is used for with flabellum (2), anti-skidding gasket (304), stationary blade (302) and compressing tightly piece (301) reciprocal anchorage or gland nut (306) that loosen each other.

6. The axial fan pressing device according to claim 1, wherein: the dustproof cap (4) is fixedly connected with the fan blades (2) through a plurality of screws (401).